Disclosure of Invention
The invention mainly aims to provide a sweeper with inclined rotary rags, which aims to solve the problem that the sweeper slips due to the increase of friction force between the rotary large-volume rags and the ground.
The invention adopts the following technical scheme:
A sweeper with inclined rotary rag comprises a sweeper body, a bottom shell, a driving assembly and a rag mounting plate; the bottom shell is arranged at the bottom of the sweeper main body; the driving component is arranged on the sweeper main body; the rag mounting plate is used for mounting rags, is obliquely arranged on the bottom shell and is in transmission connection with the driving assembly; when the sweeper advances to clean the ground, one component force direction of the friction force generated between the part of the rag contacted with the ground and the ground is the same as the advancing direction of the sweeper.
Further, a mounting groove is formed in the bottom shell, and an opening of the mounting groove faces to a direction away from the bottom of the sweeper main body; the driving assembly is obliquely arranged in the mounting groove, and the inclination angle of the driving assembly corresponds to the inclination angle of the rag mounting plate.
Further, the driving assembly comprises a second motor, a gear box and a driving shaft, wherein the second motor is in transmission connection with the gear box, the gear box is in transmission connection with the driving shaft, and the driving shaft is fixedly connected with the rag mounting plate.
Further, the device also comprises a lifting mechanism and a fixed bracket; the fixed support and the lifting mechanism are arranged in the sweeper main body; one end of the driving assembly is movably connected with the fixed support, the other end of the driving assembly is connected with the lifting mechanism, and the lifting mechanism drives one end of the driving assembly to move along a route close to or far away from the bottom shell.
Further, the lifting mechanism comprises a lifting rod, a limiting part and a power device; the power device is in threaded connection with the first end of the lifting rod and drives the lifting rod to move along a route close to or far from the bottom shell; the limiting part is arranged in the sweeper main body, a limiting hole is formed in the limiting part, and an inner flat position is arranged in the limiting hole; an outer flat position is arranged on the lifting rod, the lifting rod is sleeved in the limiting hole in a penetrating mode, and the inner flat position is matched with the outer flat position; the second end of the lifting rod is connected with the driving assembly.
Further, the lifting rod further comprises a clamp spring, the position, close to one end of the power device, of the outer flat position is a designated position, a groove is formed in the designated position of the lifting rod, and the clamp spring is embedded into the groove.
Further, the power device comprises a first motor, a turbine and a worm, wherein the first motor is in transmission connection with the worm, the worm is in meshed connection with the turbine, and the turbine is in threaded connection with the lifting rod.
Further, a mounting hole is formed in the gearbox body, and the fixing support penetrates through the mounting hole; a clamping block is arranged at one end, close to the rag mounting plate, of the fixing support, and the clamping block is propped against the edge of the mounting hole; the other end of the fixed bracket is connected with the sweeper main body.
Further, the floor sweeper further comprises a first spring, the first spring is arranged at one end, close to the main body of the floor sweeper, of the mounting hole, and the first spring is sleeved on the fixing support in a penetrating mode.
Further, the cleaning cloth cleaning device further comprises a second spring, wherein the second spring is sleeved on the driving shaft in a penetrating mode, and the second spring is arranged between the driving shaft and the cleaning cloth mounting plate.
The beneficial effects are that:
In the present invention, the cloth mounting plate is tilted with respect to the bottom case. When the floor sweeping machine is used for cleaning the floor, the cleaning cloth is inclined relative to the floor, one side of the cleaning cloth is contacted with the floor, the other side of the cleaning cloth is not contacted with the floor, and the moving direction of one side of the cleaning cloth contacted with the floor is opposite to the moving direction of the floor sweeping machine, so that the direction of friction force generated between the cleaning cloth and the floor is the same as the moving direction of the floor sweeping machine, the friction force can become the power of the floor sweeping machine, the power of the floor sweeping machine is increased, and the probability of skidding of the floor sweeping machine due to insufficient power can be reduced.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, an embodiment of the present invention is provided, which is a sweeper with inclined rotary rag, comprising a sweeper body 1, a bottom shell 2, a driving component 3 and a rag mounting plate 4; the bottom shell 2 is arranged at the bottom of the sweeper main body 1; the driving component 3 is arranged on the sweeper main body 1; the rag mounting plate 4 is used for mounting rags, is obliquely arranged on the bottom shell 2 and is in transmission connection with the driving assembly 3; when the sweeper advances to clean the ground, one component force direction of the friction force generated between the part of the rag contacted with the ground and the ground is the same as the advancing direction of the sweeper.
In the embodiment, the sweeper can be driven by the two driving wheels to move in a room for cleaning. When the mopping action is required, the driving assembly 3 drives the rag mounting plate 4 to rotate, the rag mounting plate 4 rotates on the ground, the action frequency between the rag mounting plate 4 and the ground is quickened, and the cleaning effect of the rag mounting plate 4 is improved. However, the friction between the wiper mounting plate 4 and the ground is the resistance of the sweeper to advance, and when the sweeper drags the ground, the ground is wet and slippery, so that the driving wheel can slip. According to the invention, the problem is solved by arranging the inclined rag mounting plate 4, the friction force between the rag mounting plate 4 and the ground is converted into the power for the forward movement of the sweeper, the resistance of the movement of the sweeper is reduced, and the power for the movement is increased, so that the sweeper can not slip.
The cloth mounting plate 4 is inclined with respect to the bottom case 2, and when the sweeper is started, the bottom case 2 is parallel to the ground, so that the cloth mounting plate 4 is also inclined with respect to the ground, and the cloth mounting plate 4 does not completely contact the ground. The forward direction of the sweeper is the front, the left end of the sweeper body 1 is left when seen from the back to the front, the right end of the sweeper body 1 is right, and one part of the cleaning cloth mounting plate 4 is contacted with the ground, and the other part of the cleaning cloth mounting plate is not contacted with the ground.
The inclination angle of the wiper mounting plate 4 is divided into two cases:
First case: when the left part of the cloth mounting plate 4 contacts the ground, the right part of the cloth mounting plate 4 may tilt up without contacting the ground. The rag rotates anticlockwise to the ground under the condition, the direction of the friction force is opposite to the direction of the relative movement or the relative movement trend of the object, the direction of the relative movement between the left part of the rag mounting plate 4 and the ground is the rear, one component force direction of the friction force generated between the rag and the ground is the front, and the component force direction is the same as the movement direction of the sweeper, so the friction force between the left part of the rag and the ground is the power of the forward movement of the sweeper, the right part of the rag mounting plate 4 tilts upwards and does not contact the ground, the friction force of the left part of the rag mounting plate 4 cannot be balanced, and the friction force can play a role as the power of the sweeper.
Second case: when the right part of the cloth mounting plate 4 contacts the ground, the left part of the cloth mounting plate 4 may tilt up without contacting the ground. The rag rotates clockwise to the ground under the condition, the direction of the friction force is opposite to the direction of the relative movement or the relative movement trend of the object, the direction of the relative movement between the right part of the rag mounting plate 4 and the ground is the rear, and one component force direction of the friction force generated between the rag and the ground is the front, and the component force direction is the same as the movement direction of the sweeper, so that the friction force between the right part of the rag and the ground is the power of the forward movement of the sweeper, the left part of the rag mounting plate 4 tilts upwards and does not contact the ground, and the friction force of the right part of the rag mounting plate 4 cannot be balanced, and can play a role as the power of the sweeper.
When the direction of the friction force generated by the contact part of the cleaning cloth mounting plate 4 and the ground is the same as the moving direction of the sweeper, the friction force becomes the power of the sweeper, and the other side of the cleaning cloth mounting plate 4 does not contact the ground and does not generate resistance, so that the overall driving force of the sweeper is sufficient, and the driving wheel 5 does not slip.
In one embodiment, the bottom shell 2 is provided with a mounting groove 7, and the opening of the mounting groove 7 faces away from the bottom of the main body 1 of the sweeper; the driving assembly 3 is obliquely arranged in the mounting groove 7, and the inclination angle of the driving assembly 3 corresponds to the inclination angle of the rag mounting plate 4.
In the above embodiment, the rag mounting plate 4 needs to be inclined, the driving assembly 3 is connected with the rag mounting plate 4, and if the driving assembly 3 is inclined, the rag mounting plate 4 also generates a certain inclination.
The drive assembly 3 is fixedly disposed within the mounting slot 7, typically by means of a screw, so that a plurality of mounting posts may be provided at the edges of the mounting slot for mounting the screw-mounted drive assembly. The cleaning cloth mounting plate 4 is inclined relative to the bottom shell 2, when the height of the left end of the cleaning cloth mounting plate 4 relative to the main body 1 of the cleaning cloth is larger than the height of the right end of the cleaning cloth mounting plate 4 relative to the main body 1 of the cleaning cloth, the heights of a plurality of mounting posts can be matched with the required height of the cleaning cloth mounting plate 4, namely the length of the mounting post at the left end is larger than that of the mounting post at the right end, the driving assembly 3 is connected with the plurality of mounting posts, and therefore the driving assembly 3 is also inclined as a whole, and the left end of the driving assembly 3 relative to the main body 1 of the cleaning cloth can be larger than the right end of the driving assembly 3 relative to the main body 1 of the cleaning cloth. The driving assembly 3 is connected with the rag mounting plate 4, the driving assembly 3 is inclined, and the rag mounting plate 4 is inclined, so that the inclination direction and the inclination angle of the rag mounting plate 4 meet the requirements.
When the height of the left end of the wiper mounting plate 4 relative to the sweeper body 1 needs to be set smaller than the height of the right end of the wiper mounting plate 4 relative to the sweeper body 1, the length of the left end mounting post is smaller than that of the right end mounting post, the driving assembly 3 is inclined along the required angle, and the wiper mounting plate 4 is also inclined along the required angle.
In one embodiment, the driving assembly 3 comprises a second motor 22, a gear box 23 and a driving shaft 24, wherein the second motor 22 is in transmission connection with the gear box 23, the gear box 23 is in transmission connection with the driving shaft 24, and the driving shaft 24 is fixedly connected with the rag mounting plate 4.
In the above embodiment, the second motor 22 provides power for the rotation of the cloth mounting plate 4, and the gear box 23 is a separate component consisting of a gear transmission enclosed in a rigid housing, acting as a match between the rotational speed and the transfer torque between the second motor 22 and the drive shaft 24. The second motor 22 drives the gear box 23 to rotate, and the gear row drives the driving shaft 24 to rotate.
In one embodiment, the device also comprises a lifting mechanism 8 and a fixed bracket 9; the fixed bracket 9 and the lifting mechanism 8 are arranged in the sweeper main body 1; one end of the driving component 3 is movably connected with the fixed support 9, the other end of the driving component is connected with the lifting mechanism 8, and the lifting mechanism 8 drives one end of the driving component 3 to move along a route close to the bottom shell 2 or far away from the bottom shell 2.
In the above embodiment, one end of the driving assembly 3 is movably connected with the fixing bracket 9, and the other end is connected with the lifting mechanism 8, so that the driving assembly 3 is fixed on the sweeper body 1 through the fixing bracket 9 and the lifting mechanism 8. The lifting mechanism 8 drives one end of the driving component 3 to move along a route close to the bottom shell 2 or far from the bottom shell 2, which means that when the sweeper cleans on the ground, the lifting mechanism 8 can drive one end of the driving component 3 to move up and down; the other end of the driving component 3 is movably connected with the fixed bracket 9, namely, the one end of the driving component 3 can rotate or move in a tiny range, but can not move up and down in a large range as the one end connected with the lifting mechanism 8. The height of one end of the driving component 3 is changed, the inclination angle of the driving component 3 is changed, and the cleaning cloth mounting plate 4 is connected with the driving shaft 24 of the driving component 3, so that the cleaning cloth mounting plate 4 can also be driven by the lifting mechanism 8 and the fixing bracket 9 to move up and down at one end. When one end of the cloth mounting plate 4 moves upward, the contact area between the whole of the cloth mounting plate 4 and the ground becomes small, the friction between the cloth mounting plate 4 and the ground is reduced, and when the driving wheel 5 slips, it can be regulated in this way. When one end of the cloth mounting plate 4 moves downward, the contact area of the whole cloth mounting plate 4 with the floor becomes large, and in this way, the cleaning efficiency of the cloth mounting plate 4 can be improved.
The movable connection can be realized through the articulated mode between drive assembly 3 and the fixed bolster 9, perhaps set up the connecting hole on the shell of drive assembly 3, fixed bolster 9 wears to overlap on the connecting hole, can produce relative movement between empty and the fixed bolster 9 of connection.
The lifting mechanism 8 can be arranged as an electric device such as an electric push rod, a push-pull electromagnet and the like to drive one end of the driving assembly 3 to move.
In one embodiment, the lifting mechanism 8 comprises a lifting rod 10, a limiting part 11 and a power device 12; the power device 12 is in threaded connection with the first end of the lifting rod 10 and drives the lifting rod 10 to move along a route close to the bottom shell 2 or far from the bottom shell 2; the limiting part 11 is arranged in the sweeper main body 1, a limiting hole 13 is formed in the limiting part 11, and an inner flat position is arranged in the limiting hole 13; the lifting rod 10 is provided with an outer flat position 15, the lifting rod 10 is sleeved in the limiting hole 13 in a penetrating way, and the inner flat position is matched with the outer flat position 15; a second end of the lifting lever 10 is connected to the drive assembly 3.
In the above embodiment, the power unit 12 provides power to the lifting bar 10, and the rotating portion of the power unit 12 is screw-coupled with the lifting bar 10, so that the lifting bar 10 rotates and moves up and down when the power unit 12 is started. Since the lifting rod 10 is inserted into the limiting hole 13, the outer flat position 15 on the lifting rod 10 is matched with the inner flat position in the limiting hole 13, the shapes of the inner flat position and the outer flat position 15 are elliptical, and the rotation of the lifting rod 10 is limited, so that the lifting rod 10 can only move up and down, the second end of the lifting rod 10 is connected with the driving assembly 3, and the driving assembly 3 is driven to be connected up and down.
In an embodiment, the lifting rod 10 further comprises a clamping spring 16, the position of the outer flat position 15 corresponding to one end of the limiting part 11, which is close to the power device 12, is a designated position, a groove is formed in the designated position of the lifting rod 10, and the clamping spring 16 is embedded into the groove.
In the above embodiment, the lifting rod 10 moves up and down under the action of the power unit 12, and since the lifting rod 10 is connected to the power unit 12 by screw connection, there is a risk of falling when the lifting rod 10 moves down. A clamping spring 16 is provided on the lifting lever 10. The lifting rod 10 is provided with a groove at the position above the limiting part 11, the clamping spring 16 is embedded in the groove, the lifting rod 10 is inserted into the limiting hole 13 on the limiting part 11, then the clamping spring 16 is above the limiting part 11 and is blocked by the limiting part 11, and the lifting rod 10 cannot fall down because the limiting part 11 blocks the clamping spring 16 to support the clamping spring 16, so that the falling of the lifting rod 10 is prevented.
In one embodiment, the power device 12 comprises a first motor 17, a turbine 18 and a worm 19, wherein the first motor 17 is in transmission connection with the worm 19, the worm 19 is in meshed connection with the turbine 18, and the turbine 18 is in threaded connection with the lifting rod 10.
In the above embodiment, the first motor 17 is powered and the worm gear 19 is used for deceleration. The worm wheel and worm 19 decelerates the revolution number of the first motor 17 to a desired revolution number by using a speed converter of a gear, and obtains a large torque. The worm 19 is nested on the rotor of the first motor 17 and driven to start rotating, the worm 19 is meshed with the turbine 18, the worm 19 drives the turbine 18 to rotate, threads are arranged in the turbine 18, the lifting rod 10 is inserted into the turbine 18 and connected with the turbine 18 through threads, and the turbine 18 drives the lifting rod 10 to move up and down.
Further, the power unit 12 further includes an upper housing 20 and a lower housing 21, the upper housing 20 and the lower housing 21 limit the turbine 18, and the lifting rod 10 passes through the lower housing 21 to be connected with the driving assembly 3. The upper housing 20 and the lower housing 21 may be disposed above and below the worm wheel 18 as the housing of the power unit 21, and since the worm wheel 18 is engaged with the worm 19, the worm wheel 18 may move up and down, and the upper housing 20 and the lower housing 21 may be disposed to prevent the worm wheel 18 from moving up and down.
In one embodiment, the gear box 23 is provided with a mounting hole 25, and the fixing bracket 9 passes through the mounting hole 25; a clamping block 26 is arranged at one end of the fixed bracket 9, which is close to the rag mounting plate 4, and the clamping block 26 is propped against the edge of the mounting hole 25; the other end of the fixed bracket 9 is connected with the sweeper body 1.
In the above embodiment, one end of the fixing bracket 9 is connected with the main body 1 of the sweeper, the other end of the fixing bracket is propped against the gear box 23 through the clamping block 26 at the end, the gear box 23 is sleeved on the fixing bracket 9 through the mounting hole 25, the gear box 23 and the fixing bracket 9 are not fixed, so that the gear box 23 can slide along the fixing bracket 9, the clamping block 26 can block the gear box 23 to prevent the gear box from sliding downwards, and therefore the driving assembly 3 and the rag mounting plate 4 can slide along the fixing bracket 9.
In one embodiment, the floor sweeper further comprises a first spring 14, wherein the first spring 14 is arranged at one end of the mounting hole 25 close to the floor sweeper body 1, and the first spring 14 is sleeved on the fixed bracket 9.
In the above embodiment, since the fixed bracket 9 is not connected to the gear case 23 by a fixed connection manner, the gear case 23 can slide along the fixed bracket 9 in a small range, so that vibration is generated between the fixed bracket 9 and the gear case 23 when the sweeper walks, the first spring 14 is sleeved on the fixed bracket 9, the first spring 14 is arranged above the mounting hole 25, and when the gear case 23 slides upwards along the fixed bracket 9 due to vibration, the first spring 14 plays a role of buffering, so as to avoid damage to the fixed bracket 9 and the gear case 23 caused by too strong acting force between the fixed bracket 9 and the gear case 23.
In one embodiment, the cleaning cloth further comprises a second spring 5, wherein the second spring 5 is sleeved on the driving shaft 24, and the second spring 5 is arranged between the driving shaft 24 and the cleaning cloth mounting plate 4.
In the above embodiment, when the rag mounting plate 4 encounters the uneven ground, the second spring 5 can make the rag mounting plate 4 spring to a certain extent, so that the rag mounting plate 4 can more easily cross the uneven ground, and damage to the rag mounting plate 4 is avoided.
In a preferred embodiment, two wiper mounting plates 4 and two driving assemblies 3 may be provided, the two driving assemblies 3 being in driving connection with the two wiper mounting plates 4, respectively, the two wiper mounting plates 4 being arranged mirror symmetrically. The cleaning area of the sweeper can be increased by arranging the two rag mounting plates 4, so that the efficiency of the sweeper is improved.
When the left part of the left rag mounting plate 4 contacts the ground, the right part of the left rag mounting plate 4 warps upwards and does not contact the ground, and the left rag mounting plate 4 rotates anticlockwise. Because of the mirror symmetry design of the two dishcloth mounting plates 4, the right part of the dishcloth mounting plate 4 contacts the ground, the left end of the dishcloth mounting plate 4 is tilted upwards and does not contact the ground, and the dishcloth mounting plate 4 rotates clockwise.
When the left part of the left rag mounting plate 4 is tilted upwards and does not contact the ground, the right end part of the left rag mounting plate 4 contacts the ground, and the left rag mounting plate 4 rotates clockwise. Because of the mirror symmetry design of the two dishcloth mounting plates 4, the right portion of the dishcloth mounting plate 4 contacts the ground, the left portion of the dishcloth mounting plate 4 is tilted upward and does not contact the ground, and the dishcloth mounting plate 4 rotates clockwise.
In a preferred embodiment, a third spring 6 may also be provided, the third spring 6 being threaded onto the lifting rod 10. Since the lifting rod 10 moves up and down under the drive of the power device 12, if the lifting rod 10 moves too fast, the driving component 3 and the rag mounting plate 4 also move too fast, which may cause damage to the driving component 3 and the rag mounting plate 4, the lifting rod 10 is sleeved with the third spring 6, and the third spring 6 can play a role of buffering. When the lifting rod 10 rises too fast, the third spring 6 can contact the lower housing 21 of the power device 12 to generate acting force, and part of kinetic energy of the lifting rod 10 is converted into elastic potential energy of the third spring 29, so that the speed of the lifting rod 10 is reduced.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.