CN110757391B - Preset force wrench - Google Patents
Preset force wrench Download PDFInfo
- Publication number
- CN110757391B CN110757391B CN201911153177.4A CN201911153177A CN110757391B CN 110757391 B CN110757391 B CN 110757391B CN 201911153177 A CN201911153177 A CN 201911153177A CN 110757391 B CN110757391 B CN 110757391B
- Authority
- CN
- China
- Prior art keywords
- handle
- gasket
- preset force
- seat
- handle body
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
本发明涉及五金工具技术领域，具体为一种预设力扳手，包括柄体、四方块、声座、密合弹簧、扭力弹簧等，柄体、与四方块、声座、扭力弹簧相互作用，在所述声座的外侧套设有密合弹簧，声座靠近四方块的一侧外圈开设有卡槽，该卡槽内设置有卡簧，柄体侧面设有螺孔，螺孔为沉头螺孔，该螺孔内设置有调整螺丝，完成声座的固定。这样的设置减少了内部的零件，简化了装配，提高了精度，方便了使用。
The present invention relates to the technical field of hardware tools, specifically a preset force wrench, including a handle body, a square block, a sound seat, a sealing spring, a torsion spring, etc. The handle body interacts with the square block, the sound seat, and the torsion spring. A sealing spring is sleeved on the outer side of the sound seat. A slot is provided on the outer ring of the sound seat close to the square block. A retaining spring is provided in the slot. A screw hole is provided on the side of the handle body. The screw hole is a countersunk screw hole. An adjustment screw is provided in the screw hole to fix the sound seat. Such a setting reduces internal parts, simplifies assembly, improves precision, and facilitates use.
Description
Technical Field
The invention relates to the technical field of hardware tools, in particular to a preset force wrench.
Background
For years, in order to make the general consumer more easy to get on hand when using, the hand tool industry has been on the market for a variety of hand tools that are easy to operate or have humanized functions.
Chinese patent 2006200142910 discloses an automatic positioning structure of torque wrench and torque wrench sound seat thereof, discloses an automatic positioning structure of torque wrench, is provided with compression spring between torque wrench's sound seat and propulsion post, in compression spring's both ends respectively are equipped with a bearing, at least one terminal surface of bearing is equipped with a location body, the cover is equipped with a buffer sleeve around the sound seat, has solved accuracy and smoothness. However, the abrasion of the pipe wall caused by the back and forth movement of the sound seat during the working process is not solved, so that the precision of the wrench is affected. Moreover, in the use process of the preset force wrench, deviation can occur due to abrasion, besides parts are replaced, fine adjustment of precision cannot be performed according to the current situation, and furthermore, the installation relationship among internal parts can influence the precision of the whole product.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a preset force wrench, which solves the problems of pipe wall abrasion and deviation in the use process in the prior art.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The preset force wrench comprises a handle, a sleeve, an adjusting handle, a handle body, a pushing rod, a torsion spring and an acoustic seat, wherein the handle is connected with one end of the handle body, the other end of the handle body is connected with the acoustic seat, the acoustic seat is connected with the pushing rod through the torsion spring, the sleeve is wrapped on the outer sides of the handle body, the acoustic seat, the torsion spring and the pushing rod, the adjusting handle is arranged on the outer side of the pushing rod, one end of the acoustic seat is provided with a groove, a square block is placed in the groove and is contacted with the handle body, the other end of the acoustic seat is contacted with the torsion spring, a sealing spring is sleeved on the outer side of the acoustic seat, a clamping groove is formed in the outer ring of one side, close to the square block, of the acoustic seat, a clamp spring is arranged in the clamping groove, a screw hole is formed in the side surface of the handle body, an adjusting nut is arranged in the screw hole, and the adjusting nut penetrates the handle body to be propped against the inner wall of the sleeve.
Preferably, the sound seat comprises a cylindrical body, a counter bore is formed in the tail end of the body, chamfering is performed at the head end of the body, and a groove is formed in the head end of the body.
Preferably, the groove is formed by a groove bottom surface, a first surface, a second surface, a third surface and a fourth surface, wherein the first surface and the second surface are oppositely arranged, the included angle between the first surface and the second surface is 60-90 degrees, the included angle between the third surface and the fourth surface is oppositely arranged, and the included angle between the third surface and the fourth surface is 4 degrees.
Preferably, the handle body is provided with protrusions at positions corresponding to the first surface and the second surface, and the protrusions form an included angle of 30-45 degrees with the axis of the handle body.
Preferably, a steel ball is arranged between the sleeve and the handle body.
Preferably, the adjusting nut is a countersunk head screw, and the top end of the adjusting nut is spherical.
Preferably, a gasket is arranged between the torsion spring and the sealing spring, the gasket comprises a gasket body and a gasket fixing piece, the front face of the gasket body is fixedly connected with the gasket fixing piece, a plurality of flexible protruding points are arranged on the outer surface of the gasket fixing piece, the gasket fixing piece is a cylinder, and the diameter of the gasket fixing piece is reduced from one end of the gasket body to the other end of the gasket fixing piece.
Preferably, the adjusting handle and the sleeve are provided with scales.
Preferably, the material of the sealing spring is 65Mn, the hardness is 45-50 degrees, and no gap exists between the rings of the sealing spring.
Preferably, the pushing rod is provided with a limit screw.
(III) beneficial effects
The invention provides a preset force wrench. The beneficial effects are as follows:
Through the interaction between adjusting nut, square, sound seat, adaptation spring and sleeve pipe, reduced the assembly part of product, reduced the cost, and reduced wearing and tearing between each part, reduced the inaccurate possibility of precision, in addition, the precision fine setting when having optimized the assembly, in the use, also can adjust the precision through corresponding equipment and personnel according to the actual conditions.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an internal block diagram of the present invention;
FIG. 3 is a front view of the acoustic seat;
FIG. 4 is a side view of an acoustic seat;
FIG. 5 is a top view of the acoustic seat;
fig. 6 is a schematic structural view of a gasket.
In the figure, a handle, a sleeve, a regulating handle, a regulating nut, a sound seat, a torsion spring, a gasket, a push rod, a handle body, a square block, a screw hole, a protrusion, a steel ball, a groove, a clamping groove, a counter bore, a body, a first surface, a second surface, a third surface, a fourth surface, a gasket body, a gasket fixing member and a flexible bump are arranged in the range of 5-1, 2,3, 4, 5-6, 5-7, 5-8, 9-1, 9-2 and 9-3.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a preset force wrench, as shown in figures 1 and 2, which comprises a handle 1, a sleeve 2, an adjusting handle 3, a handle body 12, a push rod 11, a torsion spring 8 and a sound seat 5, wherein the handle 1 is connected with one end of the handle body 12 through a nut, the other end of the handle body 12 is in contact connection with the sound seat 5, the sound seat 5 is connected with the push rod 11 through the torsion spring 8, the sleeve 2 is wrapped on the outer sides of the handle 1 and the sleeve 2 for protecting internal parts, the sleeve 2 is flat and is convenient for a user to take and work, the adjusting handle 3 is arranged on the outer side of the push rod 11, and scales are arranged on the adjusting handle 3 and the sleeve 2 for determining preset force; as shown in fig. 3,4 and 5, one end of the sound seat 5 is provided with a groove 5-1, a square 13 is placed in the groove 5-1, the square 13 is contacted with a handle body 12, the square 13 is forced to be fixed in the groove 5-1 under the action of the handle body 12 and the groove 5-1, the other end of the sound seat 5 is contacted with a torsion spring 8, when a preset force is applied to a wrench, the torsion spring 8 is compressed to enable the force to act on the sound seat 5, the outside of the sound seat 5 is sleeved with a sealing spring 6, the sealing spring 6 is convenient to install (can be bent), on the other hand, the linear movement of the sound seat 5 can be ensured due to the existence of the sealing spring 6, a clamping groove 5-2 is formed in the outer ring of one side, close to the square 13, of the sound seat 5 is internally provided with a clamping spring 7, the existence of the clamping spring 7 prevents the forward movement of the sealing spring 6, the sealing spring 6 is prevented from being separated from the sound seat 5, the side surface of the handle body 12 is provided with a screw hole 14, the screw hole 14 is provided with an adjusting nut 4, the adjusting nut 4 is a countersunk head screw, the top end of the adjusting nut 4 is in a sphere shape, the adjusting nut 4 penetrates through the handle body and is propped against the inner wall of the sleeve 2, the adjusting nut 4 is sunk in the handle body 12, and the exposed end is prevented from being contacted with the sleeve 2 to influence the working function;
The sound seat 5 comprises a body 5-4, wherein the body 5-4 is cylindrical, and a counter bore 5-3 is formed at the tail end of the body 5-4, so that the effect of saving materials is achieved, and make is easy to produce shortage when the sound seat 5 is manufactured and forged, and the normal operation of later work is ensured;
The groove 5-1 is composed of a groove bottom surface, a first surface 5-5, a second surface 5-6, a third surface 5-7 and a fourth surface 5-8, as shown in fig. 3, the first surface 5-5 and the second surface 5-6 are oppositely arranged, the included angle between the first surface 5-5 and the second surface is 60-90 degrees, as shown in fig. 4, the included angle between the third surface 5-7 and the fourth surface 5-8 is 4 degrees because the turning of the square block 13 is involved in the operation of the preset force spanner, the included angle between the third surface 5-7 and the fourth surface 5-8 is 4 degrees, the square block 13 can be limited in the direction, excessive movement can not occur, 4 degrees are reserved for being blocked in order to take the expansion of the square block 13 into consideration of thermal expansion and cold contraction, the normal turning of the square block 13 is affected, the included angle between the first surface 5-5 and the second surface 5-6 is 60-90 degrees, the square block 13 can be turned along with the handle body 12, and the square block 13 is controlled at 90 degrees in order to prevent the square block 13 from turning over and the handle body 12 from losing the interaction force.
As shown in figure 2, the handle 12 is provided with a protrusion 15 at the position corresponding to the first surface 5-5 and the second surface 5-6, the protrusion 15 forms an included angle of 30-45 degrees with the axis of the handle 12, and a shape like a clamp is formed, and the function of the clamp is also to prevent the handle 12 from being out of contact with the square block 13.
As shown in fig. 1, a plurality of steel balls 16 are arranged between the sleeve 2 and the handle 12, so that the handle 12 is not allowed to shake in the pipe for balancing.
As shown in fig. 2, a gasket 9 is arranged between a torsion spring 8 and a sealing spring 6, the gasket 9 is composed of a gasket body 9-1 and a gasket fixing piece 9-2, the gasket body 9-1 and the gasket fixing piece 9-2 form a cutting T shape when seen from the side, the gasket body 9-1 and the gasket fixing piece 9-2 are fixedly connected, the gasket fixing piece 9-2 is used for being clamped in a counter bore 5-3 of a sound seat 5, a plurality of flexible protruding points 9-3 are arranged on the outer surface of the gasket fixing piece 9-2, the gasket fixing piece 9-2 is a cylinder, the diameter of the gasket is changed from one end connected with the gasket body 9-1 to the other end, the whole gasket 9 is perfectly matched on the sound seat 5, and therefore, the head of the torsion spring 8 and the head of the sealing spring 6 are prevented from being mutually hooked or the head of the torsion spring 8 and the head of the sealing spring 6 are mutually sleeved.
The material of the sealing spring 6 is 65Mn, the hardness is 45-50 degrees, and no gap exists between the rings of the sealing spring 6. Thus, when the sealing spring 6 is installed, the sealing spring 6 can be bent according to actual conditions, so that the installation is easier.
The limiting screw 10 is arranged on the pushing rod 11, so that the torsion spring 8 and the sealing spring 6 are prevented from being excessively pressed by the adjusting handle 3, and the accuracy is prevented from being influenced.
The working principle is that during the assembly process, the adjusting nut 4 is adjusted to enable the handle body 12 to laterally move, the square block 13 is acted, the square block 13 is enabled to laterally incline, the square block 13 is enabled to have transverse pressure, the square block 13 is acted on the sound seat 5, the sound seat 5 acts on the sealing spring 6, friction force is generated between the sealing spring 6 and the sleeve 2, the sound seat 5 is fixed in a turning mode, and the effect of fixing the sound seat 5 by original parts is reduced. During operation, the adjusting handle 3 is acted, the handle 1 and the nut are acted to generate certain force, when the force reaches a preset value, the force applied to the handle 1 can interact with each other along the handle body 12, the sound seat 5 and the torsion spring 8, so that the inclined square block 13 is acted with the groove 5-1 of the sound seat 5 to generate collision sound, thereby being used for reminding a user that the preset value is reached and avoiding the rejection of the nut sliding wire caused by overlarge force.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The preset force wrench comprises a handle (1), a sleeve (2), an adjusting handle (3), a handle body (12), a pushing rod (11), a torsion spring (8) and an acoustic seat (5), wherein the handle (1) is connected with one end of the handle body (12), the other end of the handle body (12) is connected with the acoustic seat (5), the acoustic seat (5) is connected with the pushing rod (11) through the torsion spring (8), the sleeve (2) is wrapped on the outer sides of the handle body (12), the acoustic seat (5), the torsion spring (8) and the pushing rod (11), the adjusting handle (3) is arranged on the outer sides of the pushing rod (11), the preset force wrench is characterized in that one end of the acoustic seat (5) is provided with a groove (5-1), a square (13) is placed in the groove (5-1), the square (13) is contacted with the handle body (12), the other end of the acoustic seat (5) is contacted with the torsion spring (8), a sealing spring (6) is sleeved on the outer sides of the acoustic seat (5), one side surface (5) close to the outer ring (2) is provided with a clamping spring (14), an adjusting screw (4) is arranged in the screw hole (14), and the adjusting screw (4) penetrates through the handle body and is propped against the inner wall of the sleeve (2).
2. The preset force wrench as claimed in claim 1, wherein the sound seat (5) comprises a body (5-4), the body (5-4) is cylindrical, a counter bore (5-3) is formed in the tail end of the body (5-4), and a chamfer is formed in the head end of the body (5-4) and provided with a groove (5-1).
3. The preset force wrench according to claim 1, wherein the groove (5-1) is formed by a groove bottom surface and a first surface (5-5), a second surface (5-6), a third surface (5-7) and a fourth surface (5-8), the first surface (5-5) and the second surface (5-6) are oppositely arranged, an included angle between them is 60-90 °, and the third surface (5-7) and the fourth surface (5-8) are oppositely arranged, an included angle between them is 4 °.
4. The preset force wrench according to claim 1, wherein protrusions (15) are arranged at positions of the handle body (12) corresponding to the first surface (5-5) and the second surface (5-6), and an included angle of 30-45 degrees is formed between the protrusions (15) and the axis of the handle body (12).
5. The preset force wrench according to claim 1, wherein a steel ball (16) is arranged between the sleeve (2) and the shank (12).
6. The preset force wrench according to claim 1, wherein the adjusting screw (4) is a countersunk screw, and the top end of the adjusting screw (4) is a sphere.
7. The preset force wrench according to claim 1, wherein a gasket (9) is arranged between the torsion spring (8) and the sealing spring (6), the gasket (9) comprises a gasket body (9-1) and a gasket fixing member (9-2), the front surface of the gasket body (9-1) is fixedly connected with the gasket fixing member (9-2), a plurality of flexible protruding points (9-3) are arranged on the outer surface of the gasket fixing member (9-2), the gasket fixing member (9-2) is a cylinder, and the diameter of the gasket fixing member is changed from one end connected with the gasket body (9-1) to the other end from large to small.
8. The preset force wrench according to claim 1, wherein the adjustment handle (3) and the sleeve (2) are provided with graduations.
9. The preset force wrench according to claim 1, wherein the sealing spring (6) is made of 65Mn, has a hardness of 45-50 °, and has no gap between the rings of the sealing spring (6).
10. The preset force wrench according to claim 1, wherein a limit screw (10) is provided on the push rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153177.4A CN110757391B (en) | 2019-11-22 | 2019-11-22 | Preset force wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153177.4A CN110757391B (en) | 2019-11-22 | 2019-11-22 | Preset force wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110757391A CN110757391A (en) | 2020-02-07 |
| CN110757391B true CN110757391B (en) | 2025-01-24 |
Family
ID=69339396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911153177.4A Active CN110757391B (en) | 2019-11-22 | 2019-11-22 | Preset force wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110757391B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI799203B (en) * | 2022-03-23 | 2023-04-11 | 優鋼機械股份有限公司 | Wrench sound seat lubrication structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210968666U (en) * | 2019-11-22 | 2020-07-10 | 安吉毅薪五金工具有限公司 | Wrench with preset force |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239329Y (en) * | 1995-10-25 | 1996-11-06 | 许忠庆 | fine tuning torque wrench |
| CA2161384C (en) * | 1995-10-25 | 2002-01-15 | Frank Hsu | Torsion wrench |
| CN2920552Y (en) * | 2006-06-09 | 2007-07-11 | 谢智庆 | Automatic Positioning Structure of Torque Wrench and Its Acoustic Seat of Torque Wrench |
| DE102014112878A1 (en) * | 2014-09-08 | 2016-03-10 | Zhu-Cun Chen | Torque wrench with a locking device |
| DE202017101615U1 (en) * | 2017-03-20 | 2017-04-19 | William Tools Co., Ltd. | torque wrench |
-
2019
- 2019-11-22 CN CN201911153177.4A patent/CN110757391B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210968666U (en) * | 2019-11-22 | 2020-07-10 | 安吉毅薪五金工具有限公司 | Wrench with preset force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110757391A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4478532A (en) | Box joint employing screw pivot pin for adjustable tightening | |
| US8814155B2 (en) | C frame clamping device having non-rotating anvils | |
| CN110757391B (en) | Preset force wrench | |
| US2894548A (en) | Clamp with interchangeable pressure pad | |
| AU2015306723B2 (en) | Pipe wrench | |
| US8864142B2 (en) | Adjusting device for shrink-fit chuck tool holder | |
| US20130125610A1 (en) | Integral inspection gauge for manual crimping tool | |
| JP2004508956A (en) | Cutting tools | |
| CN210968666U (en) | Wrench with preset force | |
| CN108380987B (en) | Tapping handle of a knife of little extending structure | |
| US2503499A (en) | Torque wrench | |
| WO2017094531A1 (en) | Replaceable cutting edge cutting tool | |
| US11371637B2 (en) | Pipe fitting placement device | |
| JP2004537428A5 (en) | ||
| KR101389085B1 (en) | Butterfly valve | |
| KR102283003B1 (en) | Spanner Having Improved Function for Tightening | |
| JP5788581B1 (en) | A centering method in which the spherical shape is held at the opposite center of the conical groove at the tip. | |
| JPH0868415A (en) | Cap for bolt and nut | |
| US10654095B2 (en) | Swivel adjustment system for fastener pulling heads | |
| GB2611927A (en) | Fastener | |
| US2810200A (en) | Snap gauge | |
| US1132146A (en) | Wrench. | |
| WO2014089883A1 (en) | Torque wrench | |
| US2449034A (en) | Torque tool with ratchet signal | |
| CN106567887B (en) | A kind of thrust ball bearing component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |