Handheld noise monitorTechnical Field
The utility model relates to the technical field of noise monitoring, in particular to a handheld noise monitor.
Background
The noise monitor is an instrument for checking noise, and is internally provided with a singlechip, the performance of the noise monitor meets the requirements of GB3785 and IEC61672 standards on the sound tester, and the noise monitor has the advantages of small volume, light weight, portability, digital display, full-range measurement, night backlight display, maximum value maintenance, overrun alarm, battery power supply, alternating current/direct current output and the like, and is an ideal monitoring sound tester for measuring traffic noise, industrial noise and other various noises.
Among the prior art, the publication No. CN218481170U discloses an environmental noise monitor, including noise monitor body, fixed mounting in the connecting plate of noise monitor body back lateral wall, lateral wall fixedly connected with two bandages behind the connecting plate, bandage one end fixedly connected with magic subsides, when wearing, fix the bandage in wrist department, two magic subsides bond together, one side fixedly connected with fixture block that the connecting plate is close to noise monitor body, the draw-in groove has been seted up to noise monitor body back lateral wall, and during the installation connecting plate, the fixture block joint is in the draw-in groove, adopts connecting plate, bandage and magic subsides in this utility model, laminates connecting plate one side in wrist department, then makes the magic subsides bonding on two bandages, and two bandages are fixed the wrist this moment, realize the purpose of wearing to this noise monitor body, solved the hand ache and the finger softness that the noise monitor body caused in the prior art for a long time, make equipment drop to ground and cause the problem of damage.
However, the prior art still has great disadvantages, such as:
1. although the noise can be monitored by the prior art and the device, in the noise monitoring process, the noise monitor monitors the noise in all directions, if the directional noise needs to be monitored, the noise in other directions is often interfered, so that the accuracy of the noise monitoring is affected;
2. the sensor of the noise monitor is always exposed, so that the sensor is easy to collide when not in use, and frequent collisions can cause the sensor to reduce the sensing precision and even damage the sensor to influence the normal work of the sensor.
Disclosure of Invention
The present utility model is directed to a handheld noise monitor, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a handheld noise monitor, includes monitor shell, monitor shell inside activity is provided with the slider, fixedly on the slider be provided with the sensor that is used for noise monitoring, fixedly on the slider be provided with first buckle, monitor shell outside is provided with the shielding component that is used for the jam-proof, the shielding component is including the pull ring of cover on the monitor shell, pull ring and slider fixed connection, when the pull ring slides on the monitor shell, can drive the slider is at the inside synchronous movement of monitor shell;
a plurality of first rotating rods are rotatably arranged on the pull ring, a plurality of second rotating rods are rotatably arranged between the first rotating rods and the monitor shell, and when the pull ring slides on the monitor shell, the first rotating rods drive the second rotating rods to rotate;
a shielding cover is arranged on the first rotating rods, and when the pull ring slides on the monitor shell and drives the first rotating rods to rotate, the first rotating rods can drive the shielding cover to expand or contract.
Preferably, the monitor shell is kept away from shielding assembly's one end fixedly and is provided with the handle, it is provided with the trigger to rotate on the handle, be provided with the second buckle on the trigger, the second buckle can with first buckle cooperation, will the slider is fixed in the monitor shell, be provided with the torsional spring between trigger and the handle, the torsional spring can drive the trigger and reset, makes the slider is fixed in the monitor shell steadily.
Preferably, a threaded hole is formed in one end, far away from the monitor shell, of the grip, and the handheld noise monitor can be fixed to the foot rest or the rod piece through the threaded hole.
Preferably, the one end that monitor shell inner wall is close to the handle is fixed and is provided with the baffle, the round hole has been seted up on the baffle, the slider is close to the fixed guide arm that is provided with of one end of baffle, the round hole is when the slider is close to the baffle, for the guide arm provides the activity space, be provided with first spring between baffle and the slider, first spring can promote when the slider is released by the trigger the slider motion.
Preferably, the second spring is arranged on the sliding block, the damping ball is arranged on the second spring, and the damping ball can enable the sliding block to slowly move, so that the sensor is prevented from being damaged due to sudden ejection of the sliding block.
Preferably, the sensor is wrapped with a sponge sleeve for filtering noise.
Preferably, a plurality of positioning grooves are formed in the outer wall of the monitor shell, the positioning grooves are used for providing guidance and positioning for the sliding blocks, a plurality of guide blocks are fixedly arranged on the outer wall of the monitor shell, the guide blocks are used for providing guidance and positioning for the pull ring, a plurality of semicircular grooves are formed in the pull ring, and the semicircular grooves are used for increasing friction force, so that a user can conveniently pull the pull ring.
Preferably, the shielding cover is made of sound absorbing cotton, noise in a non-monitoring direction can be effectively absorbed, a cover plate is fixedly arranged on the first rotating rod, which is far away from the monitor shell, and the cover plate can shield the monitor shell after the shielding cover contracts, so that a sensor in the monitor shell is protected.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the arrangement of the shielding cover, the noise monitor can monitor the noise in the appointed direction during use, so that the influence of noise in other directions on the data monitoring result is avoided, the shielding cover is made of sound-absorbing cotton, the noise generated in other directions can be effectively absorbed, and the data measured by the noise monitor is more accurate;
2. through the setting of slider, can make the sensor slide in monitor shell, when not using the noise monitor like this, can accomodate the sensor in the middle of the monitor shell, avoided the sensor because the striking, collide with and produce unnecessary damage, the effectual sensor of having protected.
In the using process, an operator presses the trigger, the sliding block drives the sensor to pop up from the monitor shell, in the process, the shielding cover is unfolded, after the sensor is completely popped up from the monitor shell, the operator can use the noise monitor to detect noise, after the use is finished, the operator pulls the pull ring to a direction close to the trigger, and after the first buckle is fixed by the second buckle, the storage of the sensor and the shielding cover can be completed.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present utility model;
FIG. 2 is a schematic perspective view of the whole structure of the present utility model;
FIG. 3 is a schematic perspective view of the whole structure of the present utility model;
FIG. 4 is a schematic perspective view of the whole structure of the present utility model;
FIG. 5 is a perspective view of the first lever rotatably disposed on the tab in accordance with the present utility model;
FIG. 6 is a schematic view of a circular hole formed in a baffle plate according to the present utility model;
FIG. 7 is a perspective view of the trigger of the present utility model rotatably mounted to the grip;
FIG. 8 is a schematic diagram of a first snap-fit and a second snap-fit of the present utility model;
fig. 9 is a schematic perspective view of a damping ball fixedly arranged on a second spring according to the present utility model.
In the figure: 1. a monitor housing; 2. a slide block; 201. a sensor; 202. a sponge sleeve; 3. a first buckle; 4. a pull ring; 5. a first rotating lever; 6. a second rotating rod; 7. a shield; 8. a grip; 9. a trigger; 10. a second buckle; 11. a torsion spring; 12. a threaded hole; 13. a baffle; 1301. a round hole; 14. a guide rod; 15. a first spring; 16. a second spring; 17. damping balls; 18. a positioning groove; 19. a guide block; 20. a semicircular groove; 21. and a cover plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-9, the present utility model provides a technical solution:
embodiment one:
the utility model provides a handheld noise monitor, including monitor shell 1, be provided with LCD and the button that is used for controlling on the monitor shell 1 in this embodiment, inside is provided with intelligent chip, intelligent chip and sensor 201 signal connection, the information processing that intelligent chip can acquire sensor 201 shows on LCD, this device is the device commonly used in this technical field, be the technique well known in the art, this is not repeated in this place, monitor shell 1 inside activity is provided with slider 2, fixedly on slider 2 is provided with the sensor 201 that is used for noise monitoring, sensor 201 in this embodiment is the device commonly used in this technical field, be the technique well known in the art, this is not repeated in this place, the outside parcel of sensor 201 has sponge cover 202 that filters the noise, be provided with second spring 16 on slider 2, be provided with damping ball 17 on the second spring 16, damping ball 17 can make slider 2 slow motion, prevent slider 2 from popping out suddenly and causing the damage of sensor 201;
the sliding block 2 is fixedly provided with a first buckle 3, the outer side of the monitor shell 1 is provided with a shielding component for preventing interference, the outer wall of the monitor shell 1 is provided with a plurality of positioning grooves 18, the positioning grooves 18 are used for guiding and positioning the sliding block 2, the outer wall of the monitor shell 1 is fixedly provided with a plurality of guide blocks 19, the guide blocks 19 are used for guiding and positioning the pull ring 4, and the pull ring 4 in the embodiment is provided with a plurality of grooves matched with the guide blocks 19;
the inner wall of the monitor housing 1 is fixedly provided with a baffle 13 at one end close to the handle 8, a round hole 1301 is formed in the baffle 13, a guide rod 14 is fixedly arranged at one end of the sliding block 2 close to the baffle 13, when the sliding block 2 is close to the baffle 13, the round hole 1301 provides a movable space for the guide rod 14, a first spring 15 is arranged between the baffle 13 and the sliding block 2, and the first spring 15 can push the sliding block 2 to move when the sliding block 2 is released by the trigger 9.
Embodiment two:
on the basis of the first embodiment, the shielding assembly in the first embodiment is described, the shielding assembly comprises a pull ring 4 sleeved on a monitor housing 1, a plurality of semicircular grooves 20 are formed in the pull ring 4, the semicircular grooves 20 are used for increasing friction force, a user can pull the pull ring 4 more conveniently, the pull ring 4 is fixedly connected with a sliding block 2, and when the pull ring 4 slides on the monitor housing 1, the sliding block 2 can be driven to synchronously move in the monitor housing 1;
a plurality of first rotating rods 5 are rotatably arranged on the pull ring 4, the number of the first rotating rods 5 in the embodiment is eight, one of the first rotating rods 5 far away from the monitor housing 1 is fixedly provided with a cover plate 21, the cover plate 21 in the embodiment can shield the monitor housing 1 after the shielding cover 7 is contracted, so that a sensor 201 in the monitor housing 1 is protected, a second rotating rod 6 is rotatably arranged between the first rotating rods 5 and the monitor housing 1, and when the pull ring 4 slides on the monitor housing 1, the first rotating rods 5 drive the second rotating rods 6 to rotate;
the shielding cover 7 is arranged on the first rotating rod 5, the shielding cover 7 is made of sound-absorbing cotton, noise in a non-monitoring direction can be effectively absorbed, and when the pull ring 4 slides on the monitor shell 1 and drives the first rotating rod 5 to rotate, the first rotating rod 5 can drive the shielding cover 7 to expand or contract;
the one end that shielding assembly was kept away from to monitor shell 1 is fixed to be provided with handle 8, the screw hole 12 has been seted up to the one end that shielding assembly was kept away from to handle 8, handheld noise monitor can screw hole 12 be fixed on foot rest or member, it is provided with trigger 9 to rotate on handle 8, be provided with second buckle 10 on the trigger 9, second buckle 10 can cooperate with first buckle 3, fix slider 2 in monitor shell 1, after the user presses trigger 9, first buckle 3 and second buckle 10 separation, first spring 15 promotes slider 2 to the direction of keeping away from baffle 13, sensor 201 gets into working position, be provided with torsional spring 11 between trigger 9 and the handle 8, torsional spring 11 can drive the trigger and reset, make slider 2 fix in monitor shell 1 steadily.
Working principle:
in the using process of the utility model, an operator presses down the trigger 9, the sliding block 2 drives the sensor 201 to pop up from the monitor shell 1, the speed of popping up of the sliding block 2 is slower due to the limitation of the damping ball 17, the sensor 201 cannot shake, in the process of popping up of the sliding block 2, the sliding block 2 drives the pull ring 4 to synchronously slide, the pull ring 4 drives the first rotating rod 5 to rotate, the middle part of the first rotating rod 5 is provided with the second rotating rod 6 which is rotationally connected with the monitor shell 1, at the moment, the first rotating rod 5 drives the shielding cover 7 to be unfolded in an umbrella shape due to the limitation of the second rotating rod 6, and after the sensor 201 is completely popped up from the monitor shell 1, the operator can use the noise monitor to detect noise;
after the use, the operator pulls the pull ring 4 in a direction approaching the trigger 9, and after the first buckle 3 is fixed by the second buckle 10, the sensor 201 and the shielding cover 7 can be stored.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.