Twist setting device

Abstract

A first branch rod, a second branch rod and a third branch rod are fixedly connected in sequence, rated torque of a torque limiter is transmitted through the third branch rod of a driving rod, and rated torque output of the first branch rod of the driving rod is achieved. The rated torque of the torque limiter can be set according to working requirements when the torque limiter leaves a factory. When the torque limiter is used and the rated torque is exceeded, the torque limiter slips so as to realize the output of the rated torque. Due to the fact that the constant torque device needs to output large torque, the connecting column of the linkage block is in rigid connection with the driven rod, and the disc block of the linkage block is also in rigid connection with the first branch rod. And meanwhile, the disc block is rigidly connected with the shell through the embedding groove. The torque output loss rate of the driven rod is reduced through rigid connection.

Description

Technical Field

[0001] This application relates to the technical field of torque adjustment equipment, and particularly to a fixed-torque equipment. Background Art

[0002] A fixed-torque tool is a tool used to control the application of a specific torque to a bolt or nut to ensure the correct tightening force and prevent over-tightening or loosening. Some fixed-torque tools can be used to provide rapid and continuous rotation and are suitable for a variety of different working environments, enabling the operator to perform continuous tightening or loosening actions without removing the tool.

[0003] In actual use conditions, operators often face the working requirement of a large torque output. Traditional fixed-torque output tools often slip, which is not conducive to the working requirement of large torque output. Therefore, it is necessary to propose a fixed-torque equipment to overcome the defect that traditional fixed-torque equipment is difficult to output a rated large torque. Utility Model Content

[0004] Based on this, it is necessary to propose a fixed-torque equipment to overcome the defect that traditional fixed-torque equipment is difficult to output a rated large torque.

[0005] This application relates to a fixed-torque equipment, including:

[0006] A driving rod, including a first sub-rod, a second sub-rod, and a third sub-rod, the first sub-rod, the second sub-rod, and the third sub-rod are fixedly connected in sequence, and the first sub-rod is a polygonal column;

[0007] An interlocking block, including a disc block and a connecting column, the connecting column is fixedly connected to the disc block, the disc block is provided with a polygonal groove, the polygonal groove is arranged away from the connecting column, the first sub-rod is arranged in the polygonal groove, the polygonal groove and the connecting column are mutually clamped, the connecting column is a polygonal column, and a plurality of fitting grooves are arranged on the edge of the disc block, and each of the fitting grooves is evenly arranged in a circumferential manner around the central axis of the disc block;

[0008] A driven rod, one end of the driven rod is provided with a first connecting groove, the other end of the driven rod is provided with a second connecting groove, the connecting column is arranged in the second connecting groove, and the connecting column and the second connecting groove are mutually clamped;

[0009] A torque limiter, sleeved on the outer surface of the second sub-rod, and the torque limiter is fixedly connected to the third sub-rod;

[0010] A housing, sleeved on the outer surface of the interlocking block, the housing and the interlocking block are mutually clamped, and the housing is sleeved on the outer surface of the torque limiter.

[0011] Further, the housing includes a front housing and a clamping housing;

[0012] The front head shell is sleeved on the outer surface of the driven rod;

[0013] The clamping shell is sleeved on the outer surface of the front head shell;

[0014] The clamping shell and the front head shell are clamped with each other.

[0015] Furthermore, a plurality of bumps are provided on the inner surface of the clamping shell;

[0016] The bumps are arranged uniformly around the central axis of the disc block;

[0017] One of the bumps is clamped in one of the fitting grooves;

[0018] The clamping shell is sleeved on the disc block.

[0019] Furthermore, the outer shell further includes a grip shell and a bottom shell;

[0020] The grip shell is sleeved on the outer surface of the torque limiter;

[0021] The grip shell is fixedly connected to the clamping shell;

[0022] The bottom shell is sleeved on the outer surface of the torque limiter;

[0023] The bottom shell is fixedly connected to the grip shell.

[0024] Furthermore, the cross-sectional shape of the first sub-rod is one of a triangle, a quadrilateral, a pentagon or a hexagon;

[0025] The cross-sectional shape of the connecting column is one of a triangle, a quadrilateral, a pentagon or a hexagon;

[0026] The cross-sectional shape of the multi-sided groove is one of a triangle, a quadrilateral, a pentagon or a hexagon. Furthermore, the torque limiter includes a fixed sleeve, a spring, an adjusting seat and a connecting sleeve;

[0027] The fixed sleeve is sleeved on the second sub-rod;

[0028] The spring is sleeved on the second sub-rod;

[0029] The spring is sleeved on the third sub-rod;

[0030] The adjusting seat is fixedly connected to the third sub-rod;

[0031] The spring abuts between the fixed sleeve and the adjusting seat;

[0032] The connecting sleeve is sleeved on the outside of the adjusting seat;

[0033] The connecting sleeve is threadedly connected to the fixed sleeve.

[0034] Further, the torque adjusting seat includes a base;

[0035] The base includes a first split body and a second split body;

[0036] The first split body and the second split body are fixedly connected;

[0037] Both the first split body and the second split body are provided with through holes;

[0038] The third split rod is disposed in the through hole.

[0039] Further, the first split body is provided with a first through hole;

[0040] The third split rod is provided with a second through hole;

[0041] The central axis of the first through hole coincides with the central axis of the second through hole;

[0042] A pin is disposed between the first through hole and the second through hole.

[0043] Further, the diameter of the first split body is smaller than the diameter of the second split body;

[0044] The second split body is provided with a plurality of accommodating holes;

[0045] Each of the accommodating holes is arranged in a circumferential array at equal intervals around the central axis of the second split body; each of the accommodating holes is provided with a sliding bead;

[0046] The diameter of the sliding bead is larger than the thickness of the second split body.

[0047] Further, the torque adjusting seat further includes a socket;

[0048] The socket is sleeved on the side wall of the first split body;

[0049] The bottom of the socket abuts against the second split body;

[0050] The second end of the spring abuts against the top of the socket;

[0051] The connecting sleeve includes a side ring plate and a bottom table;

[0052] The side ring plate and the bottom table are fixedly connected;

[0053] The side ring plate is sleeved on the outer surface of the socket;

[0054] The bottom table abuts against the sliding bead;

[0055] The end of the bottom table is provided with a plurality of grooves;

[0056] Each of the grooves is arranged in a circumferential pattern at equal intervals around the central axis of the second split body;

[0057] One of the sliding beads is disposed in one of the grooves.

[0058] This application relates to a torque setting device. The first sub-rod, the second sub-rod, and the third sub-rod are fixedly connected in sequence. The rated torque of the torque limiter is transmitted through the third sub-rod of the driving rod to achieve the rated torque output of the first sub-rod of the driving rod. The torque limiter can set the rated torque at the time of factory according to the working requirements. During use, when the rated torque is exceeded, the torque limiter will slip to achieve the output of the rated torque. Since the torque setting device needs to output a relatively large torque, the connecting column of the interlocking block is rigidly connected to the driven rod, and the disc block of the interlocking block is also rigidly connected to the first sub-rod. At the same time, the disc block is rigidly connected to the housing through the fitting groove. The rigid connection reduces the torque output loss rate of the driven rod. Description of the Drawings

[0059] Figure 1 It is a schematic structural diagram of the torque setting device provided by an embodiment of this application.

[0060] Figure 2 It is a schematic structural diagram of the driving rod, the interlocking block, and the driven rod of the torque setting device provided by an embodiment of this application.

[0061] Figure 3 It is a schematic structural diagram of the driving rod and the torque limiter of the torque setting device provided by an embodiment of this application.

[0062] Figure 4 It is a schematic structural diagram of the driven rod of the torque setting device provided by an embodiment of this application.

[0063] Figure 5 It is a schematic structural diagram of the interlocking block of the torque setting device provided by an embodiment of this application.

[0064] Figure 6 It is a schematic structural diagram of the housing of the torque setting device provided by an embodiment of this application.

[0065] Figure 7 It is a schematic structural diagram of the connecting sleeve of the torque setting device provided by an embodiment of this application.

[0066] Reference Signs:

[0067] 100 - driving rod; 110 - first sub-rod; 120 - second sub-rod; 130 - third sub-rod; 200 - interlocking block;

[0068] 210 - disc block; 220 - connecting column; 230 - polygonal groove; 240 - fitting groove; 300 - driven rod;

[0069] 310 - First connection groove; 320 - Second connection groove; 400 - Torque limiter; 410 - Fixed sleeve; 420 - Spring;

[0070] 430 - Torque adjustment seat; 431 - Base; 432 - First split part; 433 - Second split part; 434 - Through hole;

[0071] 435 - First through hole; 436 - Second through hole; 437 - Pin; 438 - Accommodating hole; 441 - Slide bead;

[0072] 442 - Sleeve seat; 443 - Connecting sleeve; 444 - Side ring plate; 445 - Bottom platform; 446 - Groove; 500 - Outer shell;

[0073] 510 - Front head shell; 520 - Clamping shell; 521 - Protrusion; 530 - Holding shell; 540 - Bottom shell. Detailed implementation manner

[0074] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0075] The present application provides a torque setting device.

[0076] As Figure 1 shown, in an embodiment of the present application, a torque setting device includes a driving rod 100, an interlocking block 200, a driven rod 300, a torque limiter 400 and an outer shell 500.

[0077] The driving rod 100 includes a first sub - rod 110, a second sub - rod 120 and a third sub - rod 130. The first sub - rod 110, the second sub - rod 120 and the third sub - rod 130 are fixedly connected in sequence, and the first sub - rod 110 is a polygonal prism.

[0078] Specifically, the fixed connection of the first sub - rod 110, the second sub - rod 120 and the third sub - rod 130 can increase the working stroke of the torque limiter 400 and improve the numerical value of the rated output torque of the first sub - rod 110, realizing the high - torque output of the torque setting device.

[0079] The chain block 200 includes a disc block 210 and a connecting column 220. The connecting column 220 is fixedly connected to the disc block 210. The disc block 210 is provided with a polygonal groove 230. The polygonal groove 230 is arranged away from the connecting column 220. The first sub-bar 110 is arranged in the polygonal groove 230. The polygonal groove 230 and the connecting column 220 are engaged with each other. The connecting column 220 is a polygonal column. The edge of the disc block 210 is provided with a plurality of fitting grooves 240. Each of the fitting grooves 240 is evenly arranged in a circumferential manner around the central axis of the disc block 210.

[0080] Specifically, the chain block 200 realizes the rigid connection between the first sub-bar 110 and the driven rod 300.

[0081] The disc block 210 realizes the rigid connection between the outer shell 500 and the driven rod 300.

[0082] This reduces the torque output loss rate of the driven rod 300.

[0083] One end of the driven rod 300 is provided with a first connection groove 310, and the other end of the driven rod 300 is provided with a second connection groove 320. The connecting column 220 is arranged in the second connection groove 320. The connecting column 220 and the second connection groove 320 are engaged with each other.

[0084] The torque limiter 400 is sleeved on the outer surface of the second sub-bar 120, and the torque limiter 400 is fixedly connected to the third sub-bar 130.

[0085] The outer shell 500 is sleeved on the outer surface of the chain block 200. The outer shell 500 and the chain block 200 are engaged with each other. The outer shell 500 is sleeved on the outer surface of the torque limiter 400.

[0086] This application relates to a fixed-torque device. The first sub-bar 110, the second sub-bar 120, and the third sub-bar 130 are fixedly connected in sequence. The rated torque of the torque limiter 400 is transmitted through the third sub-bar 130 of the driving rod 100 to realize the rated torque output of the first sub-bar 110 of the driving rod 100. The torque limiter 400 can set the rated torque at the time of factory according to the working requirements. During use, when the rated torque is exceeded, the torque limiter 400 will slip to realize the output of the rated torque. Since the fixed-torque device needs to output a large torque, the connecting column 220 of the chain block 200 and the driven rod 300 are rigidly connected, and the disc block 210 of the chain block 200 and the first sub-bar 110 are also rigidly connected. At the same time, the disc block 210 is rigidly connected to the outer shell 500 through the fitting groove 240. The rigid connection reduces the torque output loss rate of the driven rod 300.

[0087] Such as Figure 1 、 Figure 6 AndFigure 7 As shown, in an embodiment of the present application, the housing 500 includes a front head shell 510 and a clamping shell 520. The front head shell 510 is sleeved on the outer surface of the driven rod 300. The clamping shell 520 is sleeved on the outer surface of the front head shell 510. The clamping shell 520 and the front head shell 510 are clamped with each other.

[0088] Specifically, since the driven rod 300 and the connecting column 220 are clamped and connected, in order to prevent the driven rod 300 and the connecting column 220 from separating from each other during operation, the front head shell 510 needs to be sleeved on the driven rod 300, and the front head shell 510 can also cover the disc block 210 to prevent dust from entering the torque setting device. The clamping shell 520 and the front head shell 510 are fixedly connected to each other by a pin 437, achieving stable structure and not being easily scattered.

[0089] As Figure 1 、 Figure 6 and Figure 7 As shown, in an embodiment of the present application, a plurality of convex blocks 521 are provided on the inner surface of the clamping shell 520. The convex blocks 521 are arranged uniformly around the central axis of the disc block 210. One convex block 521 is clamped in one fitting groove 240. The clamping shell 520 is sleeved on the disc block 210.

[0090] Specifically, in order to achieve a rigid connection between the disc block 210 and the clamping shell 520, reduce the slippage between the disc block 210 and the clamping shell 520, and reduce the loss of torque, one convex block 521 is clamped in one fitting groove 240.

[0091] As Figure 1 、 Figure 6 and Figure 7 As shown, in an embodiment of the present application, the housing 500 further includes a grip shell 530 and a bottom shell 540. The grip shell 530 is sleeved on the outer surface of the torque limiter 400. The grip shell 530 is fixedly connected to the clamping shell 520. The bottom shell 540 is sleeved on the outer surface of the torque limiter 400. The bottom shell 540 is fixedly connected to the grip shell 530.

[0092] Specifically, the grip shell 530 of the housing 500 is sleeved on the outer surface of the torque limiter 400, the front head shell 510 is sleeved on the outer surface of the driven rod 300, the clamping shell 520 and the front head shell 510 are clamped with each other, the grip shell 530 is fixedly connected to the clamping shell 520, and the bottom shell 540 is fixedly connected to the grip shell 530. The housing 500 protects the driven rod 300, the interlocking block 200, the driving rod 100, and the torque limiter 400, preventing dust from entering the interior of the torque setting device and also preventing the torque setting device from causing non-standard output torque due to changes in friction.

[0093] As Figures 2 to 6As shown, in an embodiment of the present application, the cross-sectional shape of the first sub-rod 110 is one of a triangle, a quadrilateral, a pentagon, or a hexagon. The cross-sectional shape of the connecting column 220 is one of a triangle, a quadrilateral, a pentagon, or a hexagon. The cross-sectional shape of the multi-sided groove 230 is one of a triangle, a quadrilateral, a pentagon, or a hexagon.

[0094] Specifically, the cross-sectional shape of the first connecting groove 310 is one of a triangle, a quadrilateral, a pentagon, or a hexagon. The cross-sectional shape of the second connecting groove 320 is one of a triangle, a quadrilateral, a pentagon, or a hexagon.

[0095] More specifically, the first connecting groove 310 is used to accommodate the head of the bolt. Since most bolts use a hexagonal bolt head, the geometric shape of the first connecting groove 310 is mostly hexagonal. At the same time, in order to expand the scope of use, the first connecting groove 310 can be connected to an internal hexagonal wrench. The cross-section of the connecting part of the internal hexagonal wrench is square, so the cross-sectional shape of the first connecting groove 310 also has a quadrilateral shape.

[0096] It is worth mentioning that the first sub-rod 110, the connecting column 220, and the multi-sided groove 230 with a cross-sectional shape of one of a triangle, a quadrilateral, a pentagon, or a hexagon can achieve rigid connection.

[0097] As Figure 2 and Figure 3 shown, in an embodiment of the present application, the torque limiter 400 includes a fixed sleeve 410, a spring 420, an adjusting torque seat 430, and a connecting sleeve 443. The fixed sleeve 410 is sleeved on the second sub-rod 120. The spring 420 is sleeved on the second sub-rod 120. The spring 420 is sleeved on the third sub-rod 130. The adjusting torque seat 430 is fixedly connected to the third sub-rod 130. The spring 420 abuts between the fixed sleeve 410 and the adjusting torque seat 430. The connecting sleeve 443 is sleeved outside the adjusting torque seat 430. The connecting sleeve 443 is threadedly connected to the fixed sleeve 410.

[0098] As the bolt rotates with the thread, it moves away from the driving rod 100. The adjusting torque seat 430 squeezes the spring 420 to execute the output of the rated torque. After reaching the rated torque, the adjusting torque seat 430 rotates self, slips, and at this time, the actual torque of the bolt reaches the installation standard.

[0099] In an embodiment of the present application, the adjusting torque seat 430 includes a base 431. The base 431 includes a first split body 432 and a second split body 433. The first split body 432 and the second split body 433 are fixedly connected. Both the first split body 432 and the second split body 433 are provided with through holes 434. The third sub-rod 130 is disposed in the through holes 434.

[0100] Specifically, the third sub-rod 130 is received in the through-hole 434 so that the base 431 can be linked with the third sub-rod 130.

[0101] In an embodiment of the present application, the first split body 432 is provided with a first through-hole 435. The third sub-rod 130 is provided with a second through-hole 436. The central axes of the first through-hole 435 and the second through-hole 436 coincide. A pin 437 is provided between the first through-hole 435 and the second through-hole 436.

[0102] More specifically, the base 431 is fixedly connected to the third sub-rod 130 through the pin 437. The spring 420 is disposed between the fixed sleeve 410 and the base 431 of the torque adjusting seat 430, and the connecting sleeve 443 is threadedly connected to the fixed sleeve 410.

[0103] After the one-way torque fixing tool is assembled, the spring 420 is in a compressed state, and the spring 420 will press the fixed sleeve 410 and the base 431. The second sub-rod 120 of the load-bearing rod can slide relative to the fixed sleeve 410, so the spring 420 can elongate. When the spring 420 elongates, the elastic force provided by the spring 420 will decrease.

[0104] In an embodiment of the present application, the torque adjusting seat 430 further includes a socket 442. The socket 442 is sleeved on the side wall of the first split body 432. The bottom of the socket 442 abuts against the second split body 433. The second end of the spring 420 abuts against the top of the socket 442.

[0105] The diameter of the first split body 432 is smaller than the diameter of the second split body 433. The second split body 433 is provided with a plurality of receiving holes 438. Each of the receiving holes 438 is arranged in a circumferential array at equal intervals around the central axis of the second split body 433. Each of the receiving holes 438 is provided with a sliding bead 441. The diameter of the sliding bead 441 is larger than the thickness of the second split body 433.

[0106] Specifically, when the elastic force of the spring 420 decreases, the pressure transmitted by the socket 442 to the sliding bead 441 decreases, and the sliding bead 441 rotates around the central axis of the second split body 433 under the action of the rotational torque.

[0107] In an embodiment of the present application, the connecting sleeve 443 includes a side ring plate 444 and a bottom platform 445. The side ring plate 444 and the bottom platform 445 are fixedly connected. The side ring plate 444 is sleeved on the outer surface of the socket 442. The bottom platform 445 abuts against the sliding bead 441. A plurality of grooves 446 are provided at the end of the bottom platform 445. One sliding bead 441 is disposed in one groove 446.

[0108] Specifically, the groove 446 and the accommodating hole 438 form a spatial structure for accommodating the sliding beads 441. When the elastic force of the spring 420 acting on the beads 441 decreases, the beads 441 can slide relative to the groove 446, achieving the technical effect of slipping. This ensures that when the bolt to be assembled is subjected to the rated torque, the load-bearing rod will slip and no longer apply torque to the bolt.

[0109] In fact, the contact part between the spring 420 and the socket 442 is a rough plane, and the elastic force can be converted into a frictional force perpendicular to the central axis of the second split body 433. Since this frictional force is at a certain distance from the rotation central axis, a rated torque can be generated. Therefore, the rated torque is proportional to the elastic force of the spring 420.

[0110] Since the spring 420 can have an amount of expansion and contraction, that is, the stroke along the central axis of the second split body 433 between the groove 446, the accommodating hole 438, and the beads 441. Therefore, the rated torque is actually a torque range, and the value range length of this torque range is related to the stroke.

[0111] The technical features of the above-described embodiments can be combined arbitrarily, and there is no limitation on the execution order of the method steps. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. The above-described embodiments only represent several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A torque-setting device, characterized in that, Comprising: A driving rod, including a first sub-rod, a second sub-rod and a third sub-rod, the first sub-rod, the second sub-rod and the third sub-rod are fixedly connected in sequence, and the first sub-rod is a polygonal column; An interlocking block, including a disc block and a connecting column, the connecting column is fixedly connected with the disc block, the disc block is provided with a polygonal groove, the polygonal groove is arranged away from the connecting column, the first sub-rod is arranged in the polygonal groove, the polygonal groove and the connecting column are mutually clamped, the connecting column is a polygonal column, and the edge of the disc block is provided with a plurality of fitting grooves, and each of the fitting grooves is uniformly arranged in a circumferential manner around the central axis of the disc block; A driven rod, one end of the driven rod is provided with a first connecting groove, the other end of the driven rod is provided with a second connecting groove, the connecting column is arranged in the second connecting groove, and the connecting column and the second connecting groove are mutually clamped; A torque limiter, sleeved on the outer surface of the second sub-rod, and the torque limiter is fixedly connected with the third sub-rod; A housing, sleeved on the outer surface of the interlocking block, the housing and the interlocking block are mutually clamped, and the housing is sleeved on the outer surface of the torque limiter.

2. The torque setting device according to claim 1, wherein The housing includes a front head shell and a clamping shell; The front head shell is sleeved on the outer surface of the driven rod; The clamping shell is sleeved on the outer surface of the front head shell; The clamping shell and the front head shell are mutually clamped.

3. The torque setting device according to claim 2, wherein The inner surface of the clamping shell is provided with a plurality of bumps; The bumps are uniformly arranged around the central axis of the disc block; One of the bumps is clamped in one of the fitting grooves; The clamping shell is sleeved on the disc block.

4. The torque setting device according to claim 3, characterized in that, The housing further includes a grip shell and a bottom shell; The grip shell is sleeved on the outer surface of the torque limiter; The grip shell is fixedly connected with the clamping shell; The bottom shell is sleeved on the outer surface of the torque limiter; The bottom shell is fixedly connected with the grip shell.

5. The torque setting device according to claim 4, wherein, The cross-sectional shape of the first sub-rod is one of a triangle, a quadrilateral, a pentagon or a hexagon; The cross-sectional shape of the connecting column is one of a triangle, a quadrilateral, a pentagon or a hexagon; The cross-sectional shape of the polygonal groove is one of a triangle, a quadrilateral, a pentagon or a hexagon.

6. The torque setting device according to claim 5, characterized in that, The torque limiter includes a fixed sleeve, a spring, a torque adjusting seat and a connecting sleeve; The fixed sleeve is sleeved on the second sub-rod; The spring is sleeved on the second sub-rod; The spring is sleeved on the third sub-rod; The torque adjusting seat is fixedly connected with the third sub-rod; The spring abuts between the fixed sleeve and the torque adjusting seat; The connecting sleeve is sleeved outside the torque adjusting seat; The connecting sleeve is threadedly connected with the fixed sleeve.

7. The torque setting device according to claim 6, wherein The torque adjusting seat includes a base; The base includes a first split body and a second split body; The first split body and the second split body are fixedly connected; Both the first split body and the second split body are provided with through holes; The third sub-rod is arranged in the through holes.

8. The torque setting device according to claim 7, wherein The first split body is provided with a first through hole; The third sub-rod is provided with a second through hole; The central axes of the first through hole and the second through hole coincide; A pin is arranged between the first through hole and the second through hole.

9. The torque setting device according to claim 8, characterized in that, The diameter of the first split body is smaller than the diameter of the second split body; The second split body is provided with a plurality of accommodating holes; Each of the accommodating holes is arranged in a circumferential array at equal intervals around the central axis of the second split body; Each of the accommodating holes is provided with a sliding bead; The diameter of the sliding bead is greater than the thickness of the second split body.

10. The torque setting device according to claim 9, characterized in that, The torque adjusting seat further includes a sleeve seat; The sleeve seat is sleeved on the side wall of the first split body; The bottom of the sleeve seat is attached to the second split body; The second end of the spring abuts against the top of the sleeve seat; The connecting sleeve includes a side ring plate and a bottom platform; The side ring plate and the bottom platform are fixedly connected; The side ring plate is sleeved on the outer surface of the sleeve seat; The bottom platform abuts against the sliding bead; A plurality of grooves are provided at the end of the bottom platform; Each of the grooves is arranged in a circumferential array at equal intervals around the central axis of the second split body; One sliding bead is arranged in one groove.

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