CN2485097Y - Adjustment structure of ratchet wrench - Google Patents

Abstract

A regulating structure of ratchet spanner is prepared as setting a containing chamber at one end of ratchet spanner, setting a regulating structure in said containing chamber and sealing it by a sealing piece, setting a ratchet wheel, a regulating block, an auxiliary positioning structure and a shifting structure, using said shifting structure to directly control said regulating block to swing for engaging ratchet tooth surface at one side with ratchet wheel and enabling said regulating block to be more stably and uniformly operated by said auxiliary positioning structure for realizing function of driving workpiece by movable spanner or for realizing reverse idle reset.

Description

Translated fromChinese

棘轮扳手的调拨结构Adjustment structure of ratchet wrench

本实用新型涉及手工工具，尤其是指棘轮扳手。The utility model relates to a hand tool, in particular to a ratchet wrench.

习用棘轮扳手结构请参阅图1、2，主要在扳手头部工作端设一底面开放的容室，该容室的一端设一棘轮10，该棘轮10的中央连设一驱动杆11，该驱动杆11中央设一活动式嵌制元件111，控制驱动杆11稳定套合于工件或结合其他套件；该嵌制元件并由一穿伸出驱动杆11及容室顶面的按钮12控制，该容室的另一端于壁面设二弧槽13，供二拨块14、15的根部限位其中，该二拨块14、15的开放端具有啮齿16可与该棘轮10的周齿啮合。该二拨块14、15之间设一偏心推杆17，该推杆17由一设于扳手顶面的拨杆18控制。该容室的两侧壁各设一弹簧19推顶该拨块14、15。Please refer to Figures 1 and 2 for the structure of the conventional ratchet wrench. A chamber with an open bottom surface is mainly provided at the working end of the wrench head. Aratchet 10 is provided at one end of the chamber. There is a movable embeddedelement 111 in the center of therod 11, which controls thedriving rod 11 to be stably fitted on the workpiece or combined with other kits; the embedded element is controlled by abutton 12 that extends out of thedriving rod 11 and the top surface of the chamber. The other end of the chamber is provided with twoarc grooves 13 on the wall, which are used to limit the roots of the two shiftingblocks 14, 15. The open ends of the two shiftingblocks 14, 15 haveteeth 16 which can engage with the peripheral teeth of theratchet 10. Aneccentric push rod 17 is set between the two shiftingblocks 14 and 15, and thepush rod 17 is controlled by adriving rod 18 located on the top surface of the wrench. Aspring 19 is respectively arranged on the two side walls of the chamber to push the shiftingblocks 14,15.

拨动该拨杆18令推杆17推开其中一拨块14或15，使拨块压缩与其对应的弹簧19，拨块的啮齿16与棘轮10分离；反之，另一拨块14或15则因另一弹簧19的推顶而使啮齿16与棘轮10啮合。藉此于操动扳手时产生一预定的带动方向，反之则使扳手空转复位。Toggle thedriving lever 18 to make thepush rod 17 push away one of the shiftingblocks 14 or 15, so that the shifting block compresses itscorresponding spring 19, and theteeth 16 of the shifting block are separated from theratchet 10; otherwise, the other shiftingblock 14 or 15 is Thetooth 16 is engaged with theratchet 10 due to the pushing of anotherspring 19 . Thereby, a predetermined driving direction is generated when the wrench is operated, otherwise, the wrench is idled and reset.

前述习用的棘轮扳手具有下列缺点：The aforementioned conventional ratchet wrench has the following disadvantages:

1.扳手扭力小。呈长杆状拨块14、15端部可设的啮合数少，棘轮10与拨块14、15的啮合齿数不足，扳手的扭力变小，使用中易造成啮齿16磨损，咬合不确实，影响扳手操作。1. The torque of the wrench is small. The number of meshes that can be set at the ends of the long rod-shaped shiftingblocks 14, 15 is small, the number of meshing teeth of theratchet 10 and theshifting blocks 14, 15 is insufficient, the torque of the wrench becomes smaller, and theteeth 16 are easily worn during use. Wrench operation.

2.零部件多，组装麻烦费时。组装时需先安置二拨块14、15，再装设偏心推杆17，并注意推杆17转动时可推离其中一拨块14、15，再将拨杆18与推杆17结合，再于二拨块14、15与两侧壁之间填塞二个弹簧19，组装甚为繁复耗时。2. There are many parts, and the assembly is troublesome and time-consuming. During assembly, two shiftingblocks 14, 15 need to be placed earlier, and then theeccentric push rod 17 is installed, and attention can be pushed away from one of the shiftingblocks 14, 15 when thepush rod 17 rotates, and then the shiftingrod 18 is combined with thepush rod 17, and then Fill twosprings 19 between the two shiftingblocks 14, 15 and the two side walls, and the assembly is very complicated and time-consuming.

3.组件定位不稳固。弹簧19仅以填塞方式设置，未获得良好的定位，容易脱离。而该二拨块14、15根部仅限位于二弧槽13中，容易往棘齿方向脱离。3. The component positioning is not stable. Thespring 19 is only set in a stuffing manner, which does not obtain a good positioning and is easy to come off. And the root portions of the two shiftingblocks 14, 15 are only located in the twoarc grooves 13, and are easy to break away from in the ratchet direction.

本实用新型的主要目的在于提供一种棘轮扳手的调拨结构，其可实现扳手带动工件往作用方向转动或扳手反向空转复位的基本功能；另外具有可快速组装、定位、扳手扭力增加、扳手以稳定均匀的带动力量驱动工件、提升扳手的操控性及耐用性等特点。The main purpose of the utility model is to provide a dialing structure of a ratchet wrench, which can realize the basic function of the wrench driving the workpiece to rotate in the direction of action or the wrench reverse idling reset; Stable and even driving force to drive the workpiece, improve the handling and durability of the wrench.

为达到上述目的，本实用新型的解决方案是：一种棘轮扳手的调拨结构，该调拨结构包括：一棘轮，设于该容室的端部；一定位槽，设于该容室的另一端部的槽壁；一调拨块，具有一圆块状的根部及一由根部径向外扩张的齿块；该根部设于该定位槽中；该调拨块的根部中央设有一多角槽孔；一拨动结构，具有一盘部，该盘部的一侧面设一轴杆，该轴杆的杆身上设一多角块；该轴杆穿入该调拨块，该多角块套入该多角槽孔中；一辅助定位结构，系于该调拨块的齿块设贯穿孔，该孔中填设一弹簧，该弹簧的两端各设一定位珠，该定位珠端部设一定位杆穿入该弹簧中定位；该容室壁面及该封片相对于该定位珠的邻侧位置各设有一半球凹槽，使该调拨块被该拨动结构拨动倾斜，以一侧的棘齿面与棘轮啮合时，该二定位珠缘面得以弹卡入同侧的半球凹槽中；In order to achieve the above object, the solution of this utility model is: a dialing structure of a ratchet wrench, the dialing structure includes: a ratchet, arranged at the end of the chamber; The groove wall of the part; a transfer block, which has a round root and a tooth block radially expanded from the root; the root is set in the positioning groove; the center of the root of the transfer block is provided with a polygonal slot hole; a The toggle structure has a plate portion, a shaft is arranged on one side of the plate, and a multi-angle block is arranged on the body of the shaft; the shaft penetrates the dial block, and the multi-angle block is inserted into the multi-angle slot Middle; an auxiliary positioning structure, which is tied to the tooth block of the transfer block to set a through hole, a spring is filled in the hole, a positioning bead is set at both ends of the spring, and a positioning rod is set at the end of the positioning bead to penetrate the Positioning in the spring; the wall of the chamber and the sealing piece are respectively provided with a hemispherical groove relative to the adjacent side of the positioning bead, so that the dialing block is tilted by the dialing structure, and the ratchet surface on one side and the ratchet wheel When engaged, the two positioning beads can be snapped into the hemispherical groove on the same side;

该定位槽的开口系呈收口状；The opening of the positioning groove is closed;

该调拨块的两侧各设一向内凹的限位槽部，供该定位槽收口状的侧壁端嵌入，使调拨块往棘轮方向脱动；Both sides of the shifting block are respectively provided with an inwardly concave limiting groove, which is used for inserting the closed side wall end of the positioning groove, so that the shifting block is disengaged in the direction of the ratchet;

该齿块的两端角的棘齿面系由数个棘齿排列构成。The ratchet tooth surfaces at the two end angles of the tooth block are formed by arranging several ratchet teeth.

由于采用了上述方案，本实用新型具有以下优点：Owing to having adopted above-mentioned scheme, the utility model has the following advantages:

1.本实用新型以一棘轮、一调拨块及一拨动结构即可达成活动扳手带动工件或反向空转复位的功能；组件较创作背景中所述的习用活动扳手少，可快速组装。1. The utility model uses a ratchet, a shifting block and a shifting structure to achieve the function of the adjustable wrench driving the workpiece or reverse idling reset; the number of components is less than that of the conventional adjustable wrench described in the creation background, and it can be quickly assembled.

2.本实用新型的调拨块已预制成一块状模态，以其根部设入该定位槽中即完成定位，并利用限位槽部与定位槽收口端壁的嵌制配合，使调拨块更进一步获得定位，无脱动之虞。不仅具有快速组装的优点，更在一次性的组装动作中同步完成定位。2. The shifting block of the present utility model has been prefabricated into a one-piece pattern, and its root is set in the positioning groove to complete the positioning. Further gain positioning without risk of dislodgement. Not only has the advantage of fast assembly, but also completes the positioning synchronously in one-time assembly action.

3.本实用新型的调拨块以齿块的两个棘齿面与棘轮啮合，由于齿块的面积大，故其上的棘齿面齿数亦得以增加，使棘轮与调拨块的啮合面积增加，可增加调拨块的带动力量，进而增进扳手的扭力，以较大的力量带动工件，该调拨块的齿面亦无崩断之虞。3. The dialing block of the present invention meshes with the ratchet with the two ratchet tooth surfaces of the tooth block. Due to the large area of the tooth block, the number of teeth on the ratchet surface can also be increased, so that the meshing area of the ratchet and the dialing block increases. The driving force of the adjusting block can be increased, thereby increasing the torque of the wrench, and driving the workpiece with greater force, and the tooth surface of the adjusting block is not in danger of breaking.

4.本实用新型具有辅助定位结构，当调拨块被拨转倾斜时，以一侧的棘齿面与棘轮咬合时，其同侧定位珠即移往邻近的半球凹槽中，增加咬合稳定性，使调拨动得以更稳定均衡的力量带动该棘轮往作用方向转动。4. The utility model has an auxiliary positioning structure. When the dialing block is turned and tilted, when the ratchet surface on one side engages with the ratchet, the positioning beads on the same side move to the adjacent hemispherical groove to increase the stability of the engagement. , so that the dial can be moved more stably and balanced to drive the ratchet to rotate in the action direction.

上述各项优点均有助于提高扳手的操控性及耐用性。All of the above advantages contribute to the improved handling and durability of the wrench.

下面结合附图说明和实施例对本实用新型作进一步的描述。Below in conjunction with accompanying drawing description and embodiment the utility model is described further.

图1是习用扳手的立体外观图。Fig. 1 is a three-dimensional appearance view of a conventional wrench.

图2是习用扳手内部结构平面图。Fig. 2 is a plan view of the internal structure of a conventional wrench.

图3是采用本实用新型的扳手的立体分解图。Fig. 3 is a three-dimensional exploded view of the wrench of the present invention.

图4是采用本实用新型的工具柄的平面图。Fig. 4 is a plan view of the tool handle of the utility model.

图5是采用本实用新型的扳手的组合外观图。Fig. 5 is a combined appearance view of the wrench of the present invention.

图6是图5中A-A剖面暨箭头方向所指的剖视图。Fig. 6 is A-A cross-section in Fig. 5 and the cross-sectional view indicated by the direction of the arrow.

图7是采用本实用新型的扳手的平面动作示意图。Fig. 7 is a schematic plan view of the action of the wrench of the present invention.

图8是图7中B-B剖面图。Fig. 8 is a B-B sectional view in Fig. 7 .

图9是采用本实用新型的扳手的平面动作示意图。Fig. 9 is a schematic plan view of the action of the wrench of the present invention.

图10是图9中C-C剖面图。Fig. 10 is a sectional view of C-C in Fig. 9 .

请参阅图3至图6，采用本实用新型的一种棘轮扳手，主要包含：Please refer to Fig. 3 to Fig. 6, a kind of ratchet wrench adopting the utility model mainly includes:

一工具柄20，该工具柄20的一端系为工作端21，另一端为握持端22；该工作端21内设有一开放口朝下的容室23，该容室23穿过其顶面槽壁各设有一棘轮口231、二螺丝孔位232、一轴杆孔位233；该容室23相邻该轴杆孔位233的侧槽壁设一半弧状的定位槽24，该定位槽24的开口系呈收口状；Atool handle 20, one end of thetool handle 20 is a workingend 21, and the other end is agripping end 22; the workingend 21 is provided with achamber 23 with an opening facing downward, and thechamber 23 passes through its top surface The groove walls are each provided with a ratchet opening 231, twoscrew holes 232, and ashaft hole 233; thechamber 23 is provided with a semi-arc-shaped positioning groove 24 on the side groove wall adjacent to theshaft hole 233, and thepositioning groove 24 The opening is closed;

一棘轮30，设于该容室23具有棘轮口231的端部内，该棘轮30的中央连设一驱动杆31，该驱动杆31设一活动式嵌制元件311，供稳定套合于工件或结合其他套件；该嵌制元件311并由一穿伸出驱动杆30及棘轮口231的按钮32所控制；Aratchet 30 is located in the end of thechamber 23 with a ratchet opening 231. Adrive rod 31 is connected to the center of theratchet 30. Thedrive rod 31 is provided with a movable embeddedelement 311 for stably fitting on the workpiece or Combined with other kits; the embeddedelement 311 is controlled by abutton 32 that passes through thedrive rod 30 and theratchet port 231;

一调拨块40，系由一圆弧块状的根部41及一径向外扩张的齿块42所构成；该调拨块两侧位置各设一内凹的限位槽部43；该根部41设于工具柄20的定位槽24中，两侧的限位槽部43供该定位槽24收口状的侧壁端嵌入，使该调拨块40被定位于该定位槽24中，且无虞往棘轮30方向脱动；该齿块42相对该调拨块40系位一弧凹状的端面，其两端各设有由数个棘齿构成的棘齿面421，可分别与棘轮30啮合；该调拨块40的根部41中央设一多角槽孔45；A transfer block 40 is composed of an arc-shaped block-shaped root 41 and a radially outwardly expandingtooth block 42; the position on both sides of the transfer block is respectively provided with aconcave limit groove 43; theroot 41 is provided with In thepositioning groove 24 of thetool handle 20, thelimiting grooves 43 on both sides are embedded in the closed side wall end of thepositioning groove 24, so that the adjustment block 40 is positioned in thepositioning groove 24, and there is no risk of moving the ratchet. 30 direction disengagement; Thegear block 42 has an arc concave end surface relative to the transfer block 40, and its two ends are each provided with aratchet surface 421 composed of several ratchets, which can be meshed with theratchet 30 respectively; the transfer block Apolygonal slot 45 is arranged in the center of theroot 41 of 40;

一拨动结构50，具有一盘部51，该盘部51的一侧面设一轴杆52，该轴杆52的杆身上设一多角块53；该盘部51的另一侧面径向延伸一拨杆54；该盘部51设于该工作端21的壁面外，其轴杆52穿过该轴杆孔位233进入该调拨块40，其多角块53套入该多角槽孔45中，该轴杆52穿出该调拨块40，底端以一C型环55扣合，防止该拨动结构50由上方脱离；拨动该拨杆54，得以控制该调拨块40摆动，使其中一棘齿面421与棘轮30啮合；A toggle structure 50 has adisc portion 51, ashaft 52 is arranged on one side of thedisc portion 51, and apolygonal block 53 is arranged on the shaft of theshaft 52; the other side of thedisc portion 51 extends radially Adriving rod 54; thedisc portion 51 is arranged outside the wall surface of the workingend 21, itsshaft 52 passes through theshaft hole 233 and enters the adjustment block 40, and itspolygonal block 53 is inserted into thepolygonal slot 45, Theshaft 52 passes through the dialing block 40, and the bottom end is fastened with a C-shaped ring 55 to prevent the shifting structure 50 from breaking away from above; the shiftingrod 54 can be controlled to swing the dialing block 40, so that one Theratchet surface 421 meshes with theratchet 30;

一封片60，设于该容室23的开放口处，并以二螺丝元件61穿过该螺丝孔位232将封片60锁合定位。Acover 60 is arranged at the opening of thechamber 23 , and twoscrew elements 61 pass through thescrew holes 232 to lock and position thecover 60 .

一辅助定位结构，该调拨块40的齿块42设有二贯穿的孔422，该孔422中填设一组弹性定位元件，该弹性定位元件包含一弹簧423，该弹簧423的两端各设一定位珠424，该定位珠424端部设一定位杆425穿入该弹簧423中定位；该容室23壁面及该封片60对应二弹性定位元件邻侧的位置各设有一半球凹槽25、62，供该定位珠424的圆形端头嵌卡其中；An auxiliary positioning structure, thetooth block 42 of the transfer block 40 is provided with two through holes 422, and a group of elastic positioning elements are filled in the holes 422, and the elastic positioning elements include aspring 423, and the two ends of thespring 423 are respectively provided with Apositioning bead 424, the end of thepositioning bead 424 is provided with a positioning rod 425 to penetrate into thespring 423 for positioning; the wall surface of thechamber 23 and thesealing piece 60 are respectively provided withhemispherical grooves 25 at the adjacent sides of the two elastic positioning elements , 62, for the circular end of thepositioning bead 424 to be embedded in it;

请参阅图7至图10，操作使用本实用新型的活动扳手，系依预作用方向调动该拨杆54，该拨杆54带动该盘部51及该多角块53，因该多角块53与该调拨块40的多角槽孔45套合，故可带动该调拨块40向拨杆54拨动的方向拨转一角度，使该方向中的棘齿面421与该棘轮30的齿面相互啮合；此时，当活动扳手以该驱动杆31套住工件时，往作用方向带动，该调拨块40的棘齿面421卡制住该棘轮30，使扳手带动该棘轮30及工件往作用方向转以达松紧工件的目的，反之，当活动扳手往另一方向扳动时，该调拨块40的棘齿面421会被该棘轮30逆向推开，彼此棘齿相互推错，使活动扳手以不带动该棘轮30的方式空转复位。Please refer to Fig. 7 to Fig. 10, the operation and use of the adjustable wrench of the present utility model is to mobilize the drivinglever 54 according to the pre-action direction, and the drivinglever 54 drives theplate portion 51 and themulti-angle block 53, because themulti-angle block 53 and themulti-angle block 53 Themulti-angle slot 45 of the transfer block 40 fits together, so the transfer block 40 can be driven to turn an angle in the direction in which theshift lever 54 is moved, so that theratchet surface 421 in this direction meshes with the tooth surface of theratchet 30; At this time, when the adjustable wrench encloses the workpiece with thedrive rod 31, it is driven in the direction of action, and theratchet surface 421 of the transfer block 40 blocks theratchet 30, so that the wrench drives theratchet 30 and the workpiece to turn in the direction of action. To achieve the purpose of tightening the workpiece, on the contrary, when the adjustable wrench is pulled in the other direction, theratchet surface 421 of the transfer block 40 will be pushed away by theratchet 30 in reverse, and the ratchet teeth of each other will be pushed wrongly, so that the adjustable wrench will not move. Theratchet 30 is reset by way of idling.

由于二半球凹槽25、62的位置系相对在二弹性定位元件之间，所以，当该调拨块40被该拨动结构50控制而往预定方向倾斜，并以其中一棘齿面421与该棘轮30啮合时，其中一弹性定位元件的定位珠424亦随着调拨块40的倾斜方向而移嵌至邻近的半球凹槽25、62中，而另一定位珠424则会移出半球凹槽25、62，藉此发挥辅助定位调拨块40的功能。而该弹性定位元件采弹簧423两端各抵顶一定位珠424的设计，一方面可消除调拨块40与容室23顶壁以及封片60的间隙，使设置更为稳定，当其中一棘齿面421与棘轮30咬合时，同侧位置的定位珠424卡合半球凹槽25、62中，增加咬合稳定性。Because the positions of the twohemispherical grooves 25, 62 are relatively between the two elastic positioning elements, when the dialing block 40 is controlled by the dialing structure 50 to tilt in a predetermined direction, and with one of the ratchet surfaces 421 and the When theratchet 30 is engaged, thepositioning bead 424 of one of the elastic positioning elements is also moved into the adjacenthemispherical groove 25, 62 along with the inclination direction of the transfer block 40, while theother positioning bead 424 will move out of thehemispherical groove 25 , 62, thereby bringing into play the function of the auxiliary positioning transfer block 40. And this elastic positioning element adopts the design that the two ends of thespring 423 each abut against apositioning bead 424, on the one hand, the gap between the transfer block 40, the top wall of thechamber 23 and the sealingplate 60 can be eliminated, so that the setting is more stable. When thetooth surface 421 is engaged with theratchet 30 , the positioningbeads 424 on the same side are engaged in thehemispherical grooves 25 , 62 to increase the stability of the engagement.

Claims (4)

Translated fromChinese

1.一种棘轮扳手的调拨结构，其特征在于，该调拨结构包括：1. A dialing structure of a ratchet wrench, characterized in that the dialing structure comprises:一棘轮(30)，设于该容室(23)的端部；a ratchet (30), located at the end of the chamber (23);一定位槽(24)，设于该容室(23)的另一端部的槽壁；a positioning groove (24), which is arranged on the groove wall of the other end of the chamber (23);一调拨块(40)，具有一圆块状的根部(41)及一由根部径向外扩张的齿块(42)；该根部(41)设于该定位槽(24)中；该调拨块(40)的根部中央设有一多角槽孔(45)；A transfer block (40) has a round block-shaped root (41) and a tooth block (42) radially outwardly expanding from the root; the root (41) is located in the positioning groove (24); the transfer block (40) is provided with a polygonal slot (45) in the center of the root;一拨动结构(50)，具有一盘部(51)，该盘部(51)的一侧面设一轴杆(52)，该轴杆(52)的杆身上设一多角块(53)；该轴杆(52)穿入该调拨块(40)，该多角块(53)套入该多角槽孔(45)中；A toggle structure (50) has a disk portion (51), a shaft (52) is arranged on one side of the disk portion (51), and a polygonal block (53) is arranged on the shaft of the shaft (52) ; The shaft rod (52) penetrates the transfer block (40), and the multi-angle block (53) is inserted into the multi-angle slot hole (45);一辅助定位结构，系于该调拨块(40)的齿块(42)设贯穿孔(422)，该孔(422)中填设一弹簧(423)，该弹簧(423)的两端各设一定位珠(424)，该定位珠(424)端部设一定位杆(425)穿入该弹簧(423)中定位；该容室(23)壁面及该封片(60)相对于该定位珠(424)的邻侧位置各设有一半球凹槽(25)。An auxiliary positioning structure is tied to the tooth block (42) of the transfer block (40) to establish a through hole (422), and a spring (423) is filled in the hole (422), and the two ends of the spring (423) are respectively provided with A positioning bead (424), a positioning rod (425) is provided at the end of the positioning bead (424) to penetrate into the spring (423) for positioning; the wall of the chamber (23) and the sealing piece (60) are positioned relative to the positioning Hemispherical grooves (25) are respectively provided at adjacent positions of the beads (424).2.根据权利要求1所述的一种棘轮扳手的调拨结构，其特征在于，该定位槽(24)的开口系呈收口状。2. The dialing structure of a ratchet wrench according to claim 1, characterized in that, the opening of the positioning groove (24) is closed.3.根据权利要求1所述一种棘轮扳手的调拨结构，其特征在于，该调拨块(40)的两侧各设一向内凹的限位槽部(43)，供该定位槽(24)收口状的侧壁端嵌入。3. The dialing structure of a ratchet wrench according to claim 1, characterized in that, both sides of the dialing block (40) are respectively provided with a concave limiting groove (43) for the positioning groove (24) The closed side wall end is embedded.4.根据权利要求1所述的一种棘轮扳手的调拨结构，其特征在于，该齿块(42)的两端角的棘齿面(421)系由数个棘齿排列构成。4. The dialing structure of a ratchet wrench according to claim 1, characterized in that, the ratchet tooth surfaces (421) at the two end corners of the tooth block (42) are formed by arranging several ratchet teeth.

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