CN204053900U - Ratchet spanner - Google Patents
Ratchet spanner Download PDFInfo
- Publication number
- CN204053900U CN204053900U CN201420452099.4U CN201420452099U CN204053900U CN 204053900 U CN204053900 U CN 204053900U CN 201420452099 U CN201420452099 U CN 201420452099U CN 204053900 U CN204053900 U CN 204053900U
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- CN
- China
- Prior art keywords
- ratchet
- knob
- flat spring
- centre bore
- gearshift
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a kind of ratchet spanner, comprising: the rotary handle of band ring gear; Output shaft, it has rotating part and output, and the circumferential wall of rotating part is provided with annular groove, and the upper end bilateral symmetry of rotating part offers the otch through with annular groove, and rotating part has centre bore; Be arranged on the flat spring of the side of centre bore; Two ratchets and banding spring, ratchet is fan shape, the outer circumference surface of ratchet has external tooth and draw-in groove, two ratchets are arranged in two otch by banding spring, and the two ends of flat spring abut ratchet respectively and flat spring can drive ratchet to slide along the slot side of otch; And gearshift part, it comprises gearshift turn-knob, gearshift turn-knob is rotatable when being arranged in centre bore can the two ends retraction of driving chip spring, the external tooth on ratchet outer circumference surface is separated with the internal tooth of ring gear.This ratchet spanner can positive and negatively use, simple and reasonable.
Description
Technical field
The utility model relates to machining tools art, particularly a kind of ratchet spanner.
Background technology
The ratchet spanner of the close tooth-like internal messing of double acting is the hand gear that field of industrial production is conventional, such as, in screw attachment, uses ratchet spanner to carry out artificial tightening operation, and efficiency is higher than using general Open jaw type wrench.In use, once mounting just back and forth can apply screw-down torque in nut in certain angle, does not need the suit frequently carrying out spanner and nut.Unscrewing operation also can be like this.
At present, the ratchet spanner carrying square toes usually uses with sleeve combination, and the sleeve matching different size according to nut specification carries out operation; The output shaft of the spanner also had directly makes double offset ring spanner, directly can entangle nut and carry out operation.For common double acting ratchet spanner, its ratchet is single ratchet, and ratchet carries spring silk, is biased by center steel ball groups of springs, and realize ratchet conveying, realize ratchet and engage with ring gear or depart from, positive and negative gearshift form diametrically offsets ratchet.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Utility model content
The purpose of this utility model is to provide a kind of ratchet spanner, adopts two ratchet form, carries out ratchet conversion and realizes rotating, can positive and negatively use by central rotation, simple and reasonable.
For achieving the above object, the utility model provides a kind of ratchet spanner, comprising: the rotary handle of band ring gear; Output shaft, it has the rotating part coordinating with ring gear and install and the output being located at rotating part side, and output is used for wrench set sleeve, the circumferential wall of rotating part is provided with annular groove, the upper end bilateral symmetry of rotating part offers otch, annular groove and otch through, rotating part has centre bore; Flat spring, position, intermediate portion has the circular arc lug boss coordinated with centre bore, and the inward at both ends of flat spring bends, and flat spring is arranged on the side of centre bore by circular arc lug boss and the sweep of flat spring stretches in otch respectively; The banding spring of two ratchets and installation ratchet, ratchet is fan shape, the outer circumference surface of ratchet have external tooth and draw-in groove, external tooth can engage with the internal tooth of ring gear, two ratchets snap in draw-in groove by banding spring simultaneously and annular groove is arranged in two otch respectively, and the two ends of flat spring abut ratchet respectively and flat spring can drive ratchet to slide along the slot side of otch; And gearshift part, it comprises gearshift turn-knob, the side, lower end of gearshift turn-knob extends arc block downwards, and the two side ends of gearshift turn-knob is rotatable when being arranged in centre bore arc block can the two ends retraction of driving chip spring, and the external tooth on ratchet outer circumference surface is separated with the internal tooth of ring gear.
Preferably, on the hole wall of centre bore, radial direction is provided with blind hole; Gearshift part also comprises steel ball and spring group, and steel ball and spring group is arranged in blind hole; The outer circumference surface of arc block is provided with annular gathering sill, be provided with in annular gathering sill and rotate forward spacing hole and reversion spacing hole, when turn-knob of shifting gears is arranged in centre bore, steel ball is connected in annular gathering sill, and gearshift turn-knob carries out spacing with coordinating of steel ball to turn-knob of shifting gears by rotating forward spacing hole or reversion spacing hole.
Preferably, the lower end opposite side of gearshift turn-knob extends curved circular side face downwards, the fit inside of the circular arc lug boss of curved circular side face and flat spring.
Preferably, the circular arc lug boss of flat spring is provided with locating hole, radially on the hole wall of centre bore is provided with the screw aimed at locating hole, screw and annular groove through, flat spring is passed screw by screw and is stretched into locating hole and fixes.
Preferably, the upper end of gearshift turn-knob has the circumference installed surface coordinated with the hole wall of centre bore.
Preferably, the top of gearshift turn-knob is provided with rotation rib.
Preferably, the external tooth on ratchet outer circumference surface and the internal tooth of ring gear are micro-straight-tooth.
Preferably, the upper end of rotating part has defining flange, and the lower end of rotating part is provided with jump ring, and ring gear is arranged on the surfaces of revolution of rotating part by defining flange and jump ring.
Compared with prior art, the utility model has following beneficial effect: this spanner adopts two ratchet form, and ratchet can transmit make-up torque by both forward and reverse directions, carries out rotating conversion by gearshift turn-knob central rotation simultaneously, simple to operate, positive and negative use.
Accompanying drawing explanation
Fig. 1 is the structural representation according to ratchet spanner of the present utility model;
Fig. 2 is the cross-sectional schematic according to ratchet spanner of the present utility model;
Fig. 3 is the cross-sectional schematic according to output shaft in ratchet spanner of the present utility model;
Fig. 4 is the schematic top plan view according to output shaft in ratchet spanner of the present utility model;
Fig. 5 is the structural representation according to rotary handle in ratchet spanner of the present utility model;
Fig. 6 is the cross-sectional schematic according to rotary handle in ratchet spanner of the present utility model;
Fig. 7 is the cross-sectional schematic according to turn-knob of shifting gears in ratchet spanner of the present utility model;
Fig. 8 is the schematic top plan view according to turn-knob of shifting gears in ratchet spanner of the present utility model;
Fig. 9 is the structural representation according to ratchet in ratchet spanner of the present utility model;
Figure 10 is the front view according to flat spring in ratchet spanner of the present utility model;
Figure 11 is the left view according to flat spring in ratchet spanner of the present utility model;
Figure 12 is the using state figure of ratchet spanner of the present utility model.
Main Reference Numerals illustrates:
1-rotary handle, 11-ring gear, 2-output shaft, 21-centre bore, 22-blind hole, 23-annular groove, 3-shifts gears turn-knob, 5-ratchet, 6-flat spring, 7-banding spring, 8-steel ball and spring group.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of detailed description of the invention.
Clearly represent unless otherwise other, otherwise in whole description and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or part, and do not get rid of other element or other part.
As shown in Figures 1 and 2, according to a kind of ratchet spanner of the utility model detailed description of the invention, comprise the rotary handle 1 (see Fig. 5) of band ring gear 11, output shaft 2, flat spring 6, two ratchets 5, banding spring 7 and gearshift part (unmarked in figure) of ratchet 5 are installed, gearshift part comprises gearshift turn-knob 3, wherein two ratchets 5 are clamped in the end of output shaft 2 by banding spring 7 and flat spring 6 reliably, one end release or the isolation of flat spring 6 is made by the two ends of gearshift part sliding piece spring 6, and then make two ratchets 5 engage with the internal tooth of ring gear 11 or be separated respectively, when one of them ratchet 5 engages with the internal tooth of ring gear 11, carry-over moment is carried out by the sidewall of ratchet 5 and the extruding of slot side, during forward swing rotary handle 1, ring gear 11 can drive output shaft 2 positive rotation, during backswing rotary handle 1, ring gear 11 promotes the elastic force retraction that ratchet 5 overcomes one end of flat spring 6, realize convolution, in addition, the output wrench set sleeve (not shown) of output shaft 2 realizes the tightening operation of different nuts.
Particularly, as shown in Figures 3 and 4, output shaft 2 has the rotating part 2a coordinating with ring gear 11 and install and the output 2b being located at rotating part 2a side, output 2b is used for wrench set sleeve, the circumferential wall of rotating part 2a is provided with annular groove 23, the upper end bilateral symmetry of rotating part 2a offers otch 26, and annular groove 23 is through with otch 26, and rotating part 2a has centre bore 21.As a kind of preferred embodiment, gearshift part comprises gearshift turn-knob 3 and steel ball and spring group 8, steel ball and spring group 8 is just considered gearshift the positive and negative spacing of turn-knob 3 as a kind of, certainly other modes are also had to realize the positive and negative spacing of turn-knob 3 of shifting gears, accordingly, on the hole wall of the centre bore 21 of output shaft 2, radial direction is provided with blind hole 22, and steel ball and spring group 8 is arranged in blind hole 22.
As shown in Figure 7 and Figure 8, the side, lower end of gearshift turn-knob 3 extends arc block 3a downwards, the two side ends of gearshift turn-knob 3 is rotatable when being arranged in centre bore 21 arc block 3a can the two ends retraction of driving chip spring 6, and the external tooth 51 on ratchet 5 outer circumference surface is separated (see Figure 12) with the internal tooth of ring gear 11.In order to steel ball and spring group 8 interoperation, gearshift turn-knob 3 can also design like this, particularly, the outer circumference surface of arc block 3a is provided with annular gathering sill 33, spacing hole 34 is provided with in annular gathering sill 33, spacing hole 34 comprises rotating forward spacing hole 341 and reversion spacing hole 342, when turn-knob 3 of shifting gears is arranged in centre bore 21, steel ball is connected in annular gathering sill 33, and gearshift turn-knob 3 is carried out spacing (see Fig. 8) turn-knob 3 of shifting gears with coordinating of steel ball by rotating forward spacing hole 341 or reversion spacing hole 342.As a kind of preferred embodiment, the lower end opposite side of gearshift turn-knob 3 extends curved circular side face 31 downwards, the fit inside of the circular arc lug boss 61 of curved circular side face 31 and flat spring 6, in addition, the upper end of gearshift turn-knob 3 has the circumference installed surface 32 coordinated with the hole wall of centre bore 21, is provided with rotates rib 3b on the top of gearshift turn-knob 3.
As shown in Figure 9, the banding spring of two ratchets 5 and installation ratchet, ratchet 5 is fan shape, the outer circumference surface of ratchet 5 have external tooth 51 and draw-in groove 52, external tooth 51 can engage with the internal tooth of ring gear 11, two ratchets 5 snap in draw-in groove 52 by banding spring 7 simultaneously and annular groove 23 is arranged in two otch 26 (see Fig. 1) respectively, and the two ends of flat spring 6 abut ratchet 5 respectively and flat spring 6 can drive ratchet 5 to engage with the internal tooth of ring gear 11.
As shown in Figures 10 and 11, the middle part of flat spring 6 has the circular arc lug boss 61 coordinated with centre bore 21, the two ends 63 of flat spring 6 curve inwardly, and flat spring 6 is arranged on the side of centre bore 21 by circular arc lug boss 61 and the sweep 62 of flat spring 6 stretches in otch 26 (see Fig. 1) respectively.In addition, in order at centre bore 21 internal fixtion installation sheet spring 6, the circular arc lug boss 61 of flat spring 6 is provided with locating hole 64, on the hole wall of centre bore 21, radial direction is provided with the screw 25 (see Fig. 3) aimed at locating hole 64, screw 25 is through with annular groove 23, and flat spring 6 is passed screw 25 by screw 4 and stretched into locating hole 64 and fixes (see Fig. 1).
Also have, in order to output shaft 2 is sleeved in ring gear 11, the upper end of the rotating part 2a of output shaft 2 has defining flange 27 (see Fig. 3), the lower end of rotating part 2a is provided with jump ring (jump-ring slot 24 shown in Fig. 3), and ring gear 11 is arranged on (see Fig. 2) on the surfaces of revolution of rotating part 2a by defining flange 27 and jump ring.In addition, the external tooth 51 on ratchet 5 outer circumference surface and the internal tooth of ring gear 11 are micro-straight-tooth.
When assembling this spanner, first flat spring 6 being closed littlely fills in centre bore 21 from otch 26, steel ball and spring group 8 is installed on blind hole 22, and stretch into elongate rod from screw 25 and withstand steel ball and spring group 8, be inserted in gearshift turn-knob 3 from centre bore 21 top of output shaft 2, annular gathering sill 33 is slided with steel ball and spring group 8 and joins, the two ends of flat spring 6 are inserted through the lower end indentation, there of gearshift turn-knob 3, take out elongate rod, screw 4 is screwed the locating hole 64 of screw 25 spacer spring 6.Now, rotate gearshift turn-knob 3, ensure to rotate flexibly, axially do not deviate from, can side release elastic sheet at 2 gears of gearshift turn-knob 3, side isolation shell fragment.Then be assigned in otch 26 sliding for ratchet 5, banding spring 7 is installed in annular groove 23, act on the draw-in groove 52 of ratchet 5 simultaneously, due to the elastic force contraction with banding spring 7 of keeping out of flat spring 6 two ends shell fragment, make ratchet 5 reliably rest in otch 26, check whether ratchet 5 can eject smoothly or bounce back in Spring balanced regulates in otch 26, finally, output shaft 2 is set in the inner peripheral surface of ring gear 11, utilizes jump ring to be installed in jump-ring slot 24 and come output shaft 2 axial limiting.
In a word, when using this spanner, because gearshift turn-knob 3 rotates lock-bit, one end of release or spacer spring 6, Spring balanced suffered by ratchet 5 is broken, and ratchet 5 stretches out the outer peripheral face of output shaft 2 after overcoming the elastic force of banding spring 7, and then realizes and the engaging or retract to depart from and engage of ring gear 11.Rotate forward make-up torque time, carry out carry-over moment by the extruding of the sidewall of ratchet 5 and the slot side of otch 26, so realize to nut repeat tighten or unclamp.When rotating backward rotary handle 1, ring gear 11 promotes elastic force that ratchet 5 overcomes one end of flat spring 6 and bounces back along the slot side of otch 26, realizes convolution.In like manner, this spanner rotates backward also can make-up torque, just carrys out carry-over moment by the extruding of the sidewall of another ratchet 5 and the slot side of otch 26, now, rotates forward and realizes convolution, simple and reasonable, can positive and negatively use.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (8)
1. a ratchet spanner, is characterized in that, comprising:
With the rotary handle of ring gear;
Output shaft, it has the rotating part coordinating with described ring gear and install and the output being located at described rotating part side, described output is used for wrench set sleeve, the circumferential wall of described rotating part is provided with annular groove, the upper end bilateral symmetry of described rotating part offers otch, described annular groove and described otch through, described rotating part has centre bore;
Flat spring, position, intermediate portion has the circular arc lug boss coordinated with described centre bore, the inward at both ends of described flat spring bends, and described flat spring is arranged on the side of described centre bore by described circular arc lug boss and the sweep of described flat spring stretches in described otch respectively;
The banding spring of two ratchets and the described ratchet of installation, described ratchet is fan shape, the outer circumference surface of described ratchet have external tooth and draw-in groove, described external tooth can engage with the internal tooth of described ring gear, two ratchets snap in described draw-in groove by described banding spring simultaneously and described annular groove is arranged in two otch respectively, and the two ends of described flat spring abut described ratchet respectively and described flat spring can drive described ratchet to slide along the slot side of described otch; And
Gearshift part, it comprises gearshift turn-knob, the side, lower end of described gearshift turn-knob extends arc block downwards, described gearshift turn-knob is rotatable when being arranged in described centre bore, and the two side ends of described arc block can drive the two ends of described flat spring to bounce back, and the external tooth on described ratchet outer circumference surface is separated with the internal tooth of described ring gear.
2. ratchet spanner according to claim 1, is characterized in that, on the hole wall of described centre bore, radial direction is provided with blind hole;
Described gearshift part also comprises steel ball and spring group, and described steel ball and spring group is arranged in described blind hole;
The outer circumference surface of described arc block is provided with annular gathering sill, be provided with in described annular gathering sill and rotate forward spacing hole and reversion spacing hole, when described gearshift turn-knob is arranged in described centre bore, described steel ball is connected in described annular gathering sill, and described gearshift turn-knob carries out spacing with coordinating of described steel ball to described gearshift turn-knob by described rotating forward spacing hole or described reversion spacing hole.
3. ratchet spanner according to claim 2, is characterized in that, the lower end opposite side of described gearshift turn-knob extends curved circular side face downwards, the fit inside of the circular arc lug boss of described curved circular side face and described flat spring.
4. ratchet spanner according to claim 3, it is characterized in that, the circular arc lug boss of described flat spring is provided with locating hole, on the hole wall of described centre bore, radial direction is provided with the screw aimed at described locating hole, described screw and described annular groove through, described flat spring is stretched into described locating hole by screw and fixes through described screw.
5. ratchet spanner according to claim 4, is characterized in that, the upper end of described gearshift turn-knob has the circumference installed surface coordinated with the hole wall of described centre bore.
6. ratchet spanner according to claim 5, is characterized in that, the top of described gearshift turn-knob is provided with rotation rib.
7. ratchet spanner according to claim 1, is characterized in that, the external tooth on described ratchet outer circumference surface and the internal tooth of described ring gear are micro-straight-tooth.
8. ratchet spanner according to claim 1, is characterized in that, the upper end of described rotating part has defining flange, and the lower end of described rotating part is provided with jump ring, and described ring gear is arranged on the surfaces of revolution of described rotating part by described defining flange and described jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452099.4U CN204053900U (en) | 2014-08-12 | 2014-08-12 | Ratchet spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452099.4U CN204053900U (en) | 2014-08-12 | 2014-08-12 | Ratchet spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204053900U true CN204053900U (en) | 2014-12-31 |
Family
ID=52195484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420452099.4U Withdrawn - After Issue CN204053900U (en) | 2014-08-12 | 2014-08-12 | Ratchet spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204053900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117950A (en) * | 2014-08-12 | 2014-10-29 | 广西玉柴机器股份有限公司 | Ratchet wrench |
-
2014
- 2014-08-12 CN CN201420452099.4U patent/CN204053900U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117950A (en) * | 2014-08-12 | 2014-10-29 | 广西玉柴机器股份有限公司 | Ratchet wrench |
| CN104117950B (en) * | 2014-08-12 | 2016-04-27 | 广西玉柴机器股份有限公司 | Ratchet spanner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160427 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |