CN213673855U - Preset torque wrench - Google Patents
Preset torque wrench Download PDFInfo
- Publication number
- CN213673855U CN213673855U CN202022587783.1U CN202022587783U CN213673855U CN 213673855 U CN213673855 U CN 213673855U CN 202022587783 U CN202022587783 U CN 202022587783U CN 213673855 U CN213673855 U CN 213673855U
- Authority
- CN
- China
- Prior art keywords
- rod
- sleeve
- turnover rod
- turnover
- torque wrench
- 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.)
- Expired - Fee Related
Links
- 230000007306 turnover Effects 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000010009 beating Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a preset torque wrench, which comprises a sleeve; a rotating handle is arranged outside the sleeve; a spanner head is arranged at the end part of the sleeve end; a ratchet mechanism is arranged in the wrench head; the wrench head is connected with the sleeve through a pin shaft, and the ratchet mechanism is connected with the oscillating bar; the swing rod is pivoted with the sleeve through a rotating shaft; the other end of the swing rod, which is opposite to the ratchet mechanism, is connected with a first overturning rod; the first turnover rod is hinged with the second turnover rod; the second turnover rod is provided with a leaning part relative to the first turnover rod. The utility model discloses a first upset pole and second upset matched with mode, at first through twist grip predetermine the moment of torsion, when the moment of torsion that ratchet bore reached the setting value, can make pendulum rod, first upset pole, second upset pole intercommunication, finally make on the first upset pole hit the portion of beating and collide with the sleeve, produce the warning sound. And steel balls are eliminated, and an alternative mode of a striking part and a first overturning is adopted, so that the assembly cost is reduced. Hit portion and first upset pole integrated into one piece, avoid droing, it is firm durable.
Description
Technical Field
The utility model relates to a spanner, concretely relates to preset torque wrench belongs to mechanical tool technical field.
Background
The torque wrench is designed according to the bending principle of a beam, the bending principle of a torsion bar and the compression principle of a spiral spring, and can measure the magnitude of the moment acting on the nut. Torque wrenches, also called torque wrenches, torque adjustable wrenches, are one type of wrench, generally divided into three categories: manual torque wrenches, pneumatic torque wrenches and electric torque wrenches. The fixed-torque wrench is widely used for assembly lines with strict requirements on a screwing process, so that the torque values of all fasteners of products are consistent, and the quality of the produced products is guaranteed. The torque wrench has a long elastic rod with a handle at one end and a square or hexagonal head at the other end, and a replaceable sleeve is sleeved on the square or hexagonal head and clamped by steel balls. The top end is also provided with a long pointer. The scale plate is fixed on the handle seat, and the scale value of each grid is 1N (or kg/m). Before the use, firstly, the indicator arranged on the wrench is adjusted to the required torque, then the wrench is wrenched, when the preset torque is reached, the pointer on the indicator can rotate towards the pin shaft, and finally the pointer collides with the pin shaft, and the operator is informed through a sound box signal or a sensing signal. The existing torque wrench mainly uses the sound of collision of a steel ball and a sleeve as a prompt, the steel ball needs to be assembled with the sleeve, a guide rod and the like after being formed independently, and after long-time use, once the steel ball falls off, the striking prompt cannot be generated. Therefore, further improvements are desired.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, provide a preset torque wrench, long service life, simple structure is reasonable, and the use is simple, low in production cost.
In order to achieve the above object, the present invention provides a preset torque wrench, which comprises a sleeve; a rotating handle is arranged outside the sleeve; a spanner head is arranged at the end part of the sleeve end; a ratchet mechanism is arranged in the wrench head; the wrench head is connected with the sleeve through a pin shaft, and the ratchet mechanism is connected with the oscillating bar; the swing rod is pivoted with the sleeve through a rotating shaft; the other end of the swing rod, which is opposite to the ratchet mechanism, is connected with a first turnover rod; the first turnover rod is hinged with the second turnover rod; the second turnover rod is provided with a leaning part relative to the first turnover rod; the side part of the first turnover rod is provided with a beating part.
Preferably, the second turnover rod is provided with a through groove; the first turnover rod is hinged in the through groove; the abutting part is a wedge-shaped block; the abutting part is contacted with the front end face of the first turnover rod.
Preferably, the inner wall of the through groove is provided with a limiting guide groove; the two sides of the first turnover rod are rotatably connected into the limiting guide groove through the hinge piece.
Preferably, the hinge piece is slidably connected in the limiting guide groove; the second turnover rod moves horizontally relative to the first turnover rod.
Preferably, the inner side wall of the sleeve is provided with a limiting guide groove relative to the first turnover rod and the second turnover rod; the first turning rod and the second turning rod are connected with the limiting guide groove through a hinge piece.
Preferably, the other end of the second turnover rod, which is opposite to the first turnover rod, is connected with the push block, and a roller is arranged at the other end; a threaded column is arranged in the sleeve; the rotating handle is connected with the threaded column; and bolts are arranged in the sleeve pipes and opposite to the threaded columns.
Preferably, the push block is connected with the threaded column through a compression spring.
The utility model discloses a first upset pole and second upset matched with mode, at first through twist grip predetermine the moment of torsion, when the moment of torsion that ratchet bore reached the setting value, can make pendulum rod, first upset pole, second upset pole intercommunication, finally make on the first upset pole hit the portion of beating and collide with the sleeve, produce the warning sound. The steel ball is eliminated, the alternative mode of the beating part and the first overturning is adopted, the assembly cost is greatly reduced, and the steel ball and the guide sleeve do not need to be formed independently. Hit portion and first upset pole integrated into one piece of beating simultaneously, avoid droing, it is firm durable.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
Fig. 2 is a schematic structural view of the first and second flipping bars.
Fig. 3 is a schematic structural view of the abutting portion.
In the figure, 1 is a sleeve, 2 is a rotary handle, 3 is a wrench head, 4 is a ratchet mechanism, 5 is a swing rod, 6 is a rotating shaft, 7 is a first turning rod, 7.1 is a striking part, 8 is a second turning rod, 8.1 is a leaning part, 8.2 is a through groove, 9 is a push block, 10 is a roller, 11 is a threaded column, 12 is a bolt, and 13 is a compression spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art
Referring to fig. 1-2, a preset torque wrench includes a socket 1; a rotating handle 2 is arranged outside the sleeve 1; the end part of the sleeve 1 is provided with a wrench head 3; the wrench head 3 is internally provided with a ratchet mechanism 4; the wrench head 3 is connected with the sleeve through a pin shaft, and the ratchet mechanism 4 is connected with the swing rod 5; the swing rod 5 is pivoted with the sleeve 1 through a rotating shaft 6; the other end of the swing rod 5 opposite to the ratchet mechanism 4 is connected with a first turning rod 7; the first turnover rod 7 is hinged with the second turnover rod 8; the second turnover rod 8 is provided with a leaning part 8.1 relative to the first turnover rod 7; the side part of the first turnover rod 7 is provided with a beating part 7.1.
Furthermore, a through groove is formed in the second turnover rod 8; the first turnover rod 7 is hinged in the through groove 8.2; the abutting part 8.1 is a wedge-shaped block; the abutting part 8.1 is contacted with the front end surface of the first turnover rod 7.
Furthermore, the inner wall of the through groove 8.2 is provided with a limiting guide groove; two sides of the first turnover rod 7 are rotatably connected in the limiting guide groove through a hinge.
Furthermore, the hinge piece is connected in the limiting guide groove in a sliding manner; the second turnover rod 8 moves horizontally relative to the first turnover rod 7.
In this embodiment, it should be noted that the limiting guide groove is not the same as the limiting guide groove in the following description. The spacing guide slot of here is seted up in the logical groove of second upset pole 8, after the moment of torsion reached the default, because first upset pole has the trend that resets, consequently, first upset pole can contact with the portion of supporting to through supporting 8.1 promotion second upset pole, the cooperation articulated portion, make first upset pole and second upset pole finally reach the parallel and level.
Furthermore, a limiting guide groove is formed in the inner side wall of the sleeve 1 relative to the first turnover rod 7 and the second turnover rod 8; the first turning rod and the second turning rod are connected with the limiting guide groove through a hinge piece.
In particular, in the embodiment, the limiting guide groove is used for limiting the motion track of the first turning rod and the second turning relative to the sleeve. For example, when the second turnover pipe is pressed by the push block, the angle between the second turnover pipe and the sleeve pipe is gradually increased, so that the first turnover rod is pulled upwards, and the beating part is separated from the sleeve pipe.
Furthermore, the other end of the second turnover rod, which is opposite to the first turnover rod, is connected with the push block 9, and the end is provided with a roller 10; a threaded column 11 is arranged in the sleeve 1; the rotating handle is connected with the threaded column; the relative threaded columns in the sleeve are provided with bolts 12.
Furthermore, the pushing block 9 is connected with the threaded column 11 through a compression spring 13.
The working principle is as follows: first-selected through rotating twist grip 2 before the use to the corresponding moment of torsion is predetermine to the cooperation scale mark, and the screw thread post can promote the ejector pad forward motion this moment, because articulated between second upset pole and the ejector pad, the translation of ejector pad can drive the angle change of second upset pole and first upset lid, makes to hit the portion of beating and sleeve 1 phase separation. When the ratchet mechanism is used, the torque borne by the ratchet mechanism is transmitted to the push block through the swing rod, the ratchet mechanism rotates after the torque borne by the ratchet mechanism reaches a set value, meanwhile, the swing rod is driven to rotate around the rotating shaft, the swing rod prizes the first turnover rod through the lever action, so that the angle between the first turnover rod and the second turnover rod is changed until the first turnover rod and the second turnover rod reach the same level, and the hitting portion can be in contact collision with the inner wall of the sleeve pipe at the moment to generate a prompt sound.
Finally, the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced with other equivalent solutions without departing from the spirit and scope of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. A preset torque wrench comprises a sleeve; a rotating handle is arranged outside the sleeve; the end part of the sleeve is provided with a wrench head; a ratchet mechanism is arranged in the wrench head; the wrench head is connected with the sleeve through a pin shaft, and is characterized in that: the ratchet mechanism is connected with the oscillating bar; the swing rod is pivoted with the sleeve through a rotating shaft; the other end of the swing rod, which is opposite to the ratchet mechanism, is connected with a first turnover rod; the first turnover rod is hinged with the second turnover rod; the second turnover rod is provided with a leaning part relative to the first turnover rod; the side part of the first turnover rod is provided with a beating part.
2. A preset torque wrench as claimed in claim 1, wherein: a through groove is formed in the second turnover rod; the first turnover rod is hinged in the through groove; the abutting part is a wedge-shaped block; the abutting part is contacted with the front end face of the first turnover rod.
3. A preset torque wrench as claimed in claim 2, wherein: the inner wall of the through groove is provided with a limiting guide groove; the two sides of the first turnover rod are rotatably connected into the limiting guide groove through the hinge piece.
4. A preset torque wrench as claimed in claim 3, wherein: the hinged part is connected in the limiting guide groove in a sliding manner; the second turnover rod moves horizontally relative to the first turnover rod.
5. A preset torque wrench as claimed in claim 1, wherein: the inner side wall of the sleeve is provided with a limiting guide groove relative to the first turnover rod and the second turnover rod; the first turning rod and the second turning rod are connected with the limiting guide groove through a hinge piece.
6. A preset torque wrench as claimed in claim 5, wherein: the other end of the second turnover rod, which is opposite to the first turnover rod, is connected with the push block, and a roller is arranged at the end; a threaded column is arranged in the sleeve; the rotating handle is connected with the threaded column; and bolts are arranged in the sleeve pipes and opposite to the threaded columns.
7. The preset torque wrench as claimed in claim 6, wherein: the push block is connected with the threaded column through a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587783.1U CN213673855U (en) | 2020-11-10 | 2020-11-10 | Preset torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587783.1U CN213673855U (en) | 2020-11-10 | 2020-11-10 | Preset torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213673855U true CN213673855U (en) | 2021-07-13 |
Family
ID=76729550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022587783.1U Expired - Fee Related CN213673855U (en) | 2020-11-10 | 2020-11-10 | Preset torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213673855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021015A1 (en) * | 2022-07-29 | 2024-02-01 | 胡厚飞 | Digital display torque wrench capable of adjusting torque in mechanical manner |
-
2020
- 2020-11-10 CN CN202022587783.1U patent/CN213673855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021015A1 (en) * | 2022-07-29 | 2024-02-01 | 胡厚飞 | Digital display torque wrench capable of adjusting torque in mechanical manner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |