CN104708569A - Insulating ratchet wrench - Google Patents
Insulating ratchet wrench Download PDFInfo
- Publication number
- CN104708569A CN104708569A CN201510117366.1A CN201510117366A CN104708569A CN 104708569 A CN104708569 A CN 104708569A CN 201510117366 A CN201510117366 A CN 201510117366A CN 104708569 A CN104708569 A CN 104708569A
- Authority
- CN
- China
- Prior art keywords
- hole
- ratchet
- groove
- clamping block
- spring
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
- B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Clamps And Clips (AREA)
Abstract
The invention provides an insulating ratchet wrench which comprises a wrench body, a ratchet and a locking mechanism. The wrench body is provided with an annular through hole, and the ratchet is arranged in the through hole and rotates in the axial direction of the through hole. The wrench body is further internally provided with a groove body for setting the locking mechanism. The locking mechanism comprises a locking block and a spring. One end of the spring is connected with one end of the locking block in an abutted mode, and the other end of the spring is connected with the end side wall of the groove body in an abutted mode. The end, not connected with the spring in the abutted mode, of the locking block is provided with locking teeth, and the locking teeth are meshed with the ratchet. An insulating layer is arranged outside the wrench body. According to the design, an insulator is arranged outside the wrench, it is guaranteed that workers can safely use the wrench to work even if in the electriferous environment, the safe production purpose is achieved, and production efficiency is improved.
Description
Technical field
The present invention relates to machining tools art, be specifically related to a kind of spanner.
Background technology
Existing spanner mostly is metal surface, does not have insulating properties, if when user uses it for charged occasion because of carelessness, careless slightly, and user just easily gets shocked accident, dangerous during work.Therefore, this spanner can not be used for charged occasion, the scope of application of spanner is very restricted.In addition, the hook tooth of traditional ratchet spanner is 45 °.For this structure, on the one hand, damping precision is not high, intensity is not enough; On the other hand, coefficient of friction during idle running is comparatively large, has both caused idle running not smooth, and has affected again the service life of spanner.
Summary of the invention
The object of this invention is to provide a kind of insulating ratchet wrench, solve one or more in above-mentioned prior art problem.
According to an aspect of the present invention, provide insulating ratchet wrench, comprise wrench body, ratchet, locking mechanism; Wrench body offers the through hole of ring-type, and ratchet is placed in through hole, and around the axial rotation of through hole; The cell body for arranging locking mechanism is also provided with in wrench body, locking mechanism comprises clamping block and spring, one end end abutment of spring one end and clamping block, the other end abuts with the end sidewalls of cell body, the end, one end that clamping block does not abut with spring is provided with locking teeth, and locking teeth is meshed with ratchet; Wrench body outside is provided with insulating barrier.This design, by the outer setting insulator at spanner, even if guarantee that workman also can use spanner operation safely under charged environment, has both achieved the object of safety in production, has turn improved production efficiency.
In some embodiments, ratchet comprises columned wheel body and is distributed in the hook tooth of its outer circumference, hook tooth comprises two crossing first surfaces and second, first surface and second all crossing with the cylinder of wheel body, and the tangent plane of intersection is respectively the first tangent plane and the second tangent plane; First surface is vertical with the first tangent plane, and second is 30 ° ~ 60 ° with the formed angle of the second tangent plane.This design is different from traditional spanner (two limits that hook tooth cross section presents are isometric, and are 45° angle).The design that first surface is vertical with the first tangent plane, makes, when ratchet load is rotated, effectively to improve precision and the intensity of damping; Second is 30 ° ~ 60 ° with angle formed by the second tangent plane, makes, when ratchet dallies, to decrease the coefficient of friction of ratchet and clamping block, makes idle running more smooth and easy, and extends the service life of spanner.
In some embodiments, the end, one end that clamping block contacts with ratchet is the arc surface of indent, and this arc surface matches with the circumferential cambered surface of ratchet; Locking teeth is distributed on the arc surface of this indent.The end of the clamping block in ratchet spanner is in the past flat, the teeth being distributed in its end are also smooth, after this form-lock block engages with ratchet, when ratchet load is rotated, the teeth of clamping block end only have wherein one or two concentrating stressed, easily cause the damage of teeth.And concaved circular cambered surface in the Section Design of clamping block one-tenth being matched with ratchet in the present invention, every bar locking teeth of clamping block end is made to be engage with ratchet completely at any time, when ratchet load is rotated, every bar locking teeth has all played damping action, so avoid the concentrated stressed of minority locking teeth, and then avoid the damage of locking teeth, extend the service life of spanner.
In some embodiments, cell body comprises the first groove for placing clamping block and the second groove for placing spring; First groove is communicated with through hole, is also communicated with one end of the second groove; One end that spring does not abut with clamping block abuts with one end cell wall be not communicated with the first groove in the second groove; Clamping block can along the radial displacement of the first groove, the lateral displacement of the first groove restriction clamping block.This design limiting motion track of clamping block, decreases the clamping block lateral displacement when ratchet load is rotated, improves the precision of damping, also improve the intensity of damping.
In some embodiments, wrench body comprises first sheet, second and groove seat; Groove seat is located between first sheet and second, clamps groove seat after first sheet and second are fixing; First groove and the second groove are all opened on groove seat.This design improves production efficiency, reduces energy consumption compared with conventional swaging processes.
In some embodiments, through hole comprises coaxially and the first through hole interpenetrated, the second through hole and third through-hole; First through hole is located on first sheet, and the second through hole is located on second, and third through-hole is located on groove seat; Hook tooth is distributed in the stage casing of the outer circumference of wheel body, and is positioned at third through-hole; The two ends of wheel body are placed in the first through hole and the second through hole respectively; The internal diameter of the first through hole and the second through hole is all less than the external diameter of ratchet, and the internal diameter of third through-hole is greater than the external diameter of ratchet.This design limiting rotational trajectory of ratchet, avoids ratchet to drop when stressed, extends the service life of spanner.
In some embodiments, one end end opens that clamping block abuts with spring has storage tank; One end that spring abuts with clamping block is placed in storage tank.Under this design, secure the abutted position of both ends of the spring, prevent spring from sliding when stressed, improve overall precision, also extend the service life of spanner.
In some embodiments, insulating barrier is injection molding insulating materials.This design makes spanner possess the insulating properties of height, and insulating barrier is firm wear-resisting, improves safety coefficient to greatest extent.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of one embodiment of the present invention;
Fig. 2 is the assembly structure schematic diagram of another embodiment of the present invention;
Fig. 3 is the assembly structure generalized section of one embodiment of the present invention;
Fig. 4 is ratchet structure schematic diagram and detail drawing;
Fig. 5 is the structural representation of groove seat;
Fig. 6 is the structural representation of clamping block.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in more detail.
Insulating ratchet wrench disclosed by the invention, as shown in Figure 1, comprises wrench body 10, ratchet 20, locking mechanism.Wherein, wrench body 10 offers the through hole 15 of ring-type, and this through hole 15 can be penetrate wrench body 10, also can not penetrate, and nut to be operated is entangled in the effect of through hole 15.In addition, ratchet 20 is embedded in through hole 15, and around the axial rotation of through hole, in other words, ratchet 20 is placed in through hole 15, can not depart from, but can freely rotate wherein from through hole 15; The cell body 40 for arranging locking mechanism is also provided with in wrench body 10, specifically, locking mechanism comprises clamping block 31 and spring 32, one end end abutment of spring 32 one end and clamping block 31, the other end abuts with the end sidewalls of cell body 40, the end, one end that clamping block 31 does not abut with spring 32 is provided with locking teeth 311, and locking teeth 311 is meshed with ratchet 20; Wrench body 10 outside is provided with insulating barrier 19.
About the shape of cell body 40, multiple design can be provided according to the shape of clamping block 31 and spring 32 and size, the effect of cell body 40 is as placing clamping block 31 and spring 32 provides space, ensures that clamping block 31 can radial displacement simultaneously, can limit again clamping block 31 lateral displacement.Therefore, cell body 40 can, as shown in Fig. 2,5, be exactly also a simple rectangular channel.It should be noted that, " ensure clamping block 31 can radial displacement " noted here, " restriction clamping block 31 lateral displacement; be meant at ratchet 20 from idling up to process that load rotates; clamping block 31 can push up to ratchet 20 by spring 32; same; to turn to the process of idle running at ratchet 20 from load, and the hook tooth 22 on ratchet 20 can push clamping block 31 to spring, and the displacement of clamping block 31 between ratchet 20 and spring 32 is defined as " radial displacement " by we.Meanwhile, in view of the end, one end of clamping block 31 is engaged with ratchet 20, therefore, when ratchet 20 rotates, also must can apply power to clamping block 31, make clamping block 31 have the possibility of thereupon rotating, Here it is mentions " lateral displacement " above.In fact, in order to the damping of providing high strength, high stability to when load is rotated ratchet 20, strictly must control the amplitude of clamping block 31 lateral displacement, in general, cell body 40 is not easily wide, can for clamping block 31 radial displacement smoothly.
In addition, also can carry out structure refinement to cell body 40, as shown in Figure 1, cell body 40 comprises the first groove 41 for placing clamping block 31 and the second groove 42 for placing spring 32.Wherein, one end of the first groove 41 is communicated with through hole 15, and the other end is communicated with one end of the second groove 42; One end of spring 32 abuts with clamping block 31, and the other end abuts with one end cell wall be not communicated with the first groove 41 in the second groove 42.Here " one end cell wall be not communicated with the first groove 41 in the second groove 42 " mentioned, refers to the sidewall of the second groove 42 away from the end, one end of the first groove 41.
As shown in Figure 3, more than mention that wrench body 10 offers the through hole 15 of ring-type, ratchet 20 is embedded in through hole 15, and the design for wrench body 10 can also be that wrench body 10 comprises first sheet 11, second 12 and groove seat 13.Wherein, groove seat 13, between first sheet 11 and second 12, clamps groove seat 13 after first sheet 11 and second 12 are fixing; The connected mode of first sheet 11 and second 12 can be riveted joint, also can be the cooperation of screw bolt and nut.
On the basis of this structure, the first groove 41 and the second groove 42 are all opened on groove seat 13.In other words, the effect of groove seat 13 is for placing clamping block 31 and spring 32.Therefore, the shape of groove seat 13 might not with first sheet 11 or second 12 consistent, as long as meet its technical functionality, namely can hold clamping block 31 and spring 32, and the function of clamping block 31 and spring 32 can be realized.A nearlyer step is said, groove seat 13 is also non-essential is an independent part, its can also be with first sheet 11 or second 12 one-body molded.In other words, not emphasize first sheet 11 in the technical program, second 12 and groove seat 13 must be independently three parts, so describe the needs being only used to sake of clarity.
As Fig. 4, about the structure of ratchet 20, ratchet 20 comprises columned wheel body 21 and is distributed in the hook tooth 22 of its outer circumference.Hook tooth 22 comprises two crossing first surfaces 222 and the second face 221, first surface 222 and the second face 221 all crossing with the cylinder of wheel body 21, and the tangent plane of intersection is respectively the first tangent plane 212 and the second tangent plane 211.Wherein, formed by first surface 222 and the first tangent plane 212, included angle B is right angle, and second is 30 ° ~ 60 ° with the formed included angle A of the second tangent plane 211.It should be noted that, hook tooth 22 is distributed in the outer circumference of wheel body 21, and namely hook tooth 22 is distributed in the circumference of wheel body 21 post jamb.Furtherly, so-called " uniform " is that all hook tooths 22 are parallel to each other, and the spacing of adjacent two hook tooths 22 is identical, and, the shape of the cross section of adjacent two hook tooths 22, measure-alike.
Hook tooth 22 is distributed in the stage casing of the outer circumference of wheel body 21, and in other words, the two ends circumference of wheel body 21 does not arrange ratchet 20.Design like this, makes the external diameter at the two ends of ratchet 20 be less than the external diameter in its stage casing.In addition, as described in Figure 3, through hole 15 comprises coaxially and the first through hole 151, second through hole 152 and the third through-hole 15 interpenetrated.Wherein, what through hole 15 embodied on first sheet 11 is the first through hole, and what second 12 was embodied is the second through hole 152, and what groove seat 13 embodied is third through-hole 15.The internal diameter of the first through hole 151 and the second through hole 152 is all less than the external diameter of ratchet 20, and the internal diameter of third through-hole 15 is greater than the external diameter of ratchet 20.According to this structure, the two ends of wheel body 21 are placed in the first through hole 151 and the second through hole 152 respectively, ratchet 20 is made to be articulated in the first through hole 151 and the second through hole 152, namely the two ends of ratchet 20 can be rotated around the axis of ratchet at the first through hole 151 and the second through hole 152, and then hook tooth 22 is rotated at third through-hole 15.
According to Fig. 6, the end, one end that clamping block 31 contacts with ratchet 20 is the arc surface of indent, and this arc surface matches with the circumferential cambered surface of ratchet 20; Locking teeth 311 is distributed on the arc surface of this indent.Here " matching " of mentioning, the radius being meant to the arc surface of the indent of clamping block 31 end is identical with the radius of ratchet 20, or slightly larger than the radius of ratchet 20.So, when clamping block 31 and ratchet 20 are meshed, each locking teeth 311 of clamping block 31 end is all meshed with hook tooth 22.Design like this, guarantees that each locking teeth 311 can provide damping for ratchet 20 when ratchet 20 load is rotated.
In order to prevent spring from sliding when stressed, improve overall precision, as shown in Figure 2, one end end opens that clamping block 31 abuts with spring 32 has storage tank 32; One end that spring 32 abuts with clamping block 31 is placed in storage tank 32.
In addition, about the material of insulating barrier 19, be injection molding insulating materials, specifically can adopt enhancing nylon, make spanner insulating barrier more firm wear-resisting, improve safety coefficient to greatest extent.
More than statement is only preferred embodiment of the present invention, and it should be pointed out that to those skilled in the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these also should be considered as within protection scope of the present invention.
Claims (8)
1. insulating ratchet wrench, is characterized in that, comprises wrench body (10), ratchet (20), locking mechanism;
Described wrench body (10) offers the through hole (15) of ring-type, and described ratchet (20) is placed in described through hole (15), and around the axial rotation of described through hole;
The cell body (40) for arranging described locking mechanism is also provided with in described wrench body (10), described locking mechanism comprises clamping block (31) and spring (32), one end end abutment of described spring (32) one end and described clamping block (31), the other end abuts with the end sidewalls of described cell body (40), the end, one end that described clamping block (31) does not abut with described spring (32) is provided with locking teeth (311), and described locking teeth (311) is meshed with described ratchet (20);
Described wrench body (10) outside is provided with insulating barrier (19).
2. insulating ratchet wrench according to claim 1, it is characterized in that, described ratchet (20) comprises columned wheel body (21) and is distributed in the hook tooth (22) of its outer circumference, described hook tooth (22) comprises two crossing first surfaces (222) and second (221), described first surface (222) and second (221) are all crossing with the cylinder of described wheel body (21), and the tangent plane of intersection is respectively the first tangent plane (212) and the second tangent plane (211);
Described first surface (222) is vertical with described first tangent plane (212), and described second is 30 ° ~ 60 ° with the formed angle of described second tangent plane (211).
3. insulating ratchet wrench according to claim 1, it is characterized in that, the end, one end that described clamping block (31) contacts with described ratchet (20) is the arc surface of indent, and this arc surface matches with the circumferential cambered surface of described ratchet (20); Described locking teeth (311) is distributed on the arc surface of this indent.
4. insulating ratchet wrench according to claim 1, it is characterized in that, described cell body (40) comprises the first groove (41) for placing described clamping block (31) and the second groove (42) for placing described spring (32); Described first groove (41) is communicated with described through hole (15), is also communicated with one end of described second groove (42); One end that described spring (32) does not abut with described clamping block (31) abuts with one end cell wall be not communicated with described first groove (41) in described second groove (42);
Described clamping block (31) can along the radial displacement of described first groove (41), and described first groove (41) limits the lateral displacement of described clamping block (31).
5. insulating ratchet wrench according to claim 1, is characterized in that, described wrench body (10) comprises first sheet (11), second (12) and groove seat (13); Described groove seat (13) is located between described first sheet (11) and described second (12), and described first sheet (11) and described second (12) clamp described groove seat (13) after fixing;
Described first groove (41) and described second groove (42) are all opened on described groove seat (13).
6. insulating ratchet wrench according to claim 5, is characterized in that, described through hole (15) comprises coaxially and the first through hole (151) interpenetrated, the second through hole (152) and third through-hole (153); Described first through hole (151) is located on described first sheet (11), described second through hole (152) is located on described second (12), and described third through-hole (153) is located on described groove seat (13);
Described hook tooth (22) is distributed in the circumferential stage casing of described wheel body (21) outward, and is positioned at described third through-hole (153); The two ends of described wheel body (21) are placed in described first through hole (151) and described second through hole (152) respectively; The internal diameter of described first through hole (151) and described second through hole (152) is all less than the external diameter of described ratchet (20), and the internal diameter of described third through-hole (153) is greater than the external diameter of described ratchet (20).
7. insulating ratchet wrench according to claim 1, is characterized in that, one end end opens that described clamping block (31) abuts with described spring (32) has storage tank (32); One end that described spring (32) abuts with described clamping block (31) is placed in described storage tank (32).
8. the insulating ratchet wrench according to any one of claim 1-7, is characterized in that, described insulating barrier (19) is injection molding insulating materials.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117366.1A CN104708569A (en) | 2015-03-17 | 2015-03-17 | Insulating ratchet wrench |
| PCT/CN2015/077253 WO2016145709A1 (en) | 2015-03-17 | 2015-04-23 | Insulating ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117366.1A CN104708569A (en) | 2015-03-17 | 2015-03-17 | Insulating ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104708569A true CN104708569A (en) | 2015-06-17 |
Family
ID=53408558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117366.1A Pending CN104708569A (en) | 2015-03-17 | 2015-03-17 | Insulating ratchet wrench |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104708569A (en) |
| WO (1) | WO2016145709A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106965114A (en) * | 2017-05-12 | 2017-07-21 | 金陵科技学院 | Non-polar sleeve |
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| US20060185479A1 (en) * | 2005-02-18 | 2006-08-24 | Chih-Ching Hsieh | Direction control device of ratchet spanner |
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| CN204621916U (en) * | 2015-03-17 | 2015-09-09 | 周少岐 | Insulating ratchet wrench |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722253A (en) * | 1987-01-21 | 1988-02-02 | Jessie Chow | Reversible ratchet wrench with one-hand accessible switch |
| CN2035691U (en) * | 1988-04-20 | 1989-04-12 | 张述其 | High-efficient wrench |
| US5964129A (en) * | 1998-08-04 | 1999-10-12 | Shiao; Hsuan-Sen | Ratchet wrench with a direction control ratchet member |
| US6070502A (en) * | 1998-12-31 | 2000-06-06 | Chang; Jui-Ling | Ratchet box wrench |
| US6148695A (en) * | 1999-08-03 | 2000-11-21 | Hu; Bobby | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and ratcheting tools with such ratchet wheel |
| TWM251693U (en) * | 2004-02-13 | 2004-12-01 | Hsiang-Chen Yu | Fixed torque wrench |
| CN2724929Y (en) * | 2004-07-02 | 2005-09-14 | 周少岐 | Insulating bihead spanner |
| US8291792B2 (en) * | 2011-01-26 | 2012-10-23 | Cheng-Pu Yang | Rachet wrench |
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2015
- 2015-03-17 CN CN201510117366.1A patent/CN104708569A/en active Pending
- 2015-04-23 WO PCT/CN2015/077253 patent/WO2016145709A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602875Y (en) * | 2002-12-13 | 2004-02-11 | 刘玲琅 | Ratchet wrench easy replacing tool head |
| DE202004017335U1 (en) * | 2004-11-09 | 2004-12-30 | Ching, Chen, Taiping | Reverse mechanism for working direction of ratchet wrench, has tooth block urged against ratchet by spring loaded counter press piece |
| US20060185479A1 (en) * | 2005-02-18 | 2006-08-24 | Chih-Ching Hsieh | Direction control device of ratchet spanner |
| CN2930983Y (en) * | 2006-07-26 | 2007-08-08 | 邹家平 | Fast double offset ring spanner |
| CN201353740Y (en) * | 2008-10-23 | 2009-12-02 | 韩利善 | Ratchet spanner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106965114A (en) * | 2017-05-12 | 2017-07-21 | 金陵科技学院 | Non-polar sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016145709A1 (en) | 2016-09-22 |
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Application publication date: 20150617 |
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