CN216371966U - Torque adapter - Google Patents

Abstract

The utility model discloses a torque adapter, which relates to an adapter, and comprises an adapter body, wherein the bottom end of the adapter body is cylindrical, a ring groove is formed in the outer wall of the bottom end of the adapter body, a compression hole is further formed in the outer wall of the bottom end of the adapter body, a spring and a steel ball are arranged in the compression hole, a secondary adapter with an insertion hole formed in the top is arranged below the adapter body, a limiting hole corresponding to the ring groove is formed in the outer wall of the top end of the secondary adapter, a limiting column is connected to the limiting hole in a threaded manner, an adjusting hole corresponding to the compression hole is further formed in the outer wall of the secondary adapter, and an adjusting column is connected to the adjusting hole in a threaded manner; the utility model can effectively control the torque, avoids the occurrence of over torque, and has the advantages of low manufacturing cost and convenient operation.

Description

Torque adapter

Technical Field

The present disclosure relates to adapters, and particularly to an adapter capable of controlling an output torque.

Background

At present, the known bolt tightening torque control tools are: common torque wrenches, electric torque wrenches and pneumatic torque wrenches. The common torque wrench is low in efficiency and inconvenient to operate, workpieces are convenient to operate after being fixed, and manual efficiency is low. Electric torque wrench and pneumatic torque wrench are with high costs, in case damage the whole just scrapped, and the maintenance check-up is all more difficult moreover. The conventional spanner, electric spanner and pneumatic spanner have the advantages of simple structure, strong applicability, strong reliability and difficult damage. But the torque control is difficult, the torque control of the conventional wrench needs to depend on manual judgment, the accuracy is low, and the cost of the pneumatic wrench and other wrenches is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a torque adapter to solve the technical problem that a conventional wrench in the prior art is difficult to control torque.

The utility model is realized by the following technical scheme:

a torque adapter comprises an adapter body, wherein a square hole which is coaxially distributed with the adapter body and used for external connection is formed in the top of the adapter body, the bottom of the adapter body is cylindrical, a ring groove is formed in the outer wall of the bottom of the adapter body, a compression hole is further formed in the outer wall of the bottom of the adapter body, a spring and a steel ball with the same outer diameter as the spring are sequentially arranged in the compression hole, the inner diameter of the spring is smaller than the outer diameter of the steel ball, the steel ball is arranged at the outer end of the spring, a secondary adapter is arranged below the adapter body, an insertion hole into which the bottom of the adapter body is inserted is formed in the top of the secondary adapter, a square joint which is integrated with the secondary adapter is connected to the bottom of the secondary adapter, a limiting hole which corresponds to the ring groove is formed in the outer wall of the top of the secondary adapter, and a limiting column is in the limiting hole, still seted up on the outer wall of secondary adapter with the regulation hole that the compression hole corresponds, regulation hole female connection has the regulation post, just when the bottom of adapter body was inserted in the insert hole, the inner of spacing post can be deepened stop in the ring channel adapter body axial motion, and the inner of regulation post then tightly pushes up the steel ball, and this moment half part is no less than to the steel ball be in the remaining part in the compression hole part be in the regulation hole and remaining then be in adapter body bottom outer wall with between the insert hole inner wall, just the steel ball can be in the external drive shrink to in the compression hole during adapter body and secondary adapter relative rotation.

Furthermore, the side wall of the adjusting column facing the steel ball is a groove surface which can be attached to the outer end of the steel ball.

Further, the spring is multiple; when the springs and the steel balls are arranged in the compression holes and the steel balls are tightly jacked to the same position by the groove surfaces in the adjusting columns, the acting force of each spring on the steel balls is different.

Further, the regulation post specifically is the outside spliced pole of coaxial distribution and the integrative structure that the inside post constitutes that compresses tightly, the inside external diameter that compresses tightly the post equals the external diameter of steel ball and is less than the external diameter of outside spliced pole, just the outer section and the outside spliced pole threaded connection of regulation hole and the inner segment then with inside laminating of compressing tightly the post, fixedly connected with stopper on the outer end of inside compression post, still set up on the inner wall of regulation hole and supply stopper male spacing groove, and the spacing groove prevents inside compression post and removes along radial inside patchhole.

Further, be in the spacing inslot just when the stopper inside compresses tightly the post by outside spliced pole tightly during, inside compress tightly the post towards the lateral wall of steel ball with patchhole inner wall is in on the same curved surface, all seted up on the outer wall of spacing post and regulation post and adjusted the square hole.

Further, spacing whole that spacing hole and spacing post constitute is a plurality of, and is a plurality of spacing whole winds adapter body axial evenly distributed.

Further, compression hole, spring, steel ball, regulation hole and regulation post constitute and adjust wholly, make it is whole a plurality of, and a plurality of to adjust wholly wind adapter body axial evenly distributed.

Further, the outer end overcoat of adjusting the post is equipped with the spacing ring rather than as an organic whole, just the outer fringe of secondary adapter cross section is regular polygon, and the length on every limit is greater than the external diameter of spacing ring.

Furthermore, the square joint is an integral structure formed by a first square joint block and a second square joint block, the side length of the cross section of the first square joint block is larger than that of the cross section of the second square joint block, and the first square joint block is positioned at the top of the second square joint block.

Further, the adapter body specifically comprises columniform first and columniform lower half, the quad slit has been seted up at first top, first bottom is the step form that falls, and its bottom is connected with rather than as an organic whole the lower half, just the top external diameter of lower half is less than first bottom external diameter.

Compared with the prior art, the utility model has the following advantages:

according to the torque adapter, the compression hole, the spring, the steel ball, the adjusting hole and the adjusting column are arranged, so that the torque extreme value of equipment can be effectively controlled, the defect that the torque is controlled by a conventional wrench and needs to be manually judged is overcome, and the judgment accuracy is improved; the equipment has simple structure, low manufacturing cost and convenient popularization and application.

Drawings

Fig. 1 is a schematic structural view of a torque adapter according to an embodiment.

In the figure: 1. the adapter body; 2. a square hole; 3. an annular groove; 4. a compression hole; 5. a spring; 6. a steel ball; 7. a secondary adapter; 8. an insertion hole; 9. a square joint; 10. a limiting block; 11. a limiting column; 12. an adjustment hole; 13. an adjustment column; 14. a groove surface; 15. an outer connecting post; 16. an internal compression post; 17. a limiting hole; 18. a limiting groove; 19. adjusting the square hole; 20. a limiting ring; 21. a first square joint block; 22. the second square joint block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

With reference to fig. 1, the embodiment provides a torque adapter, the top of which is provided with a square hole 2 for external connection, the bottom of which is cylindrical, and a secondary adapter 7 is arranged below a torque adapter body 1, and the bottom of the secondary adapter 7 is connected with a square joint 9 integrated with the secondary adapter; in order to connect the adapter body 1 and the secondary adapter 7, in the embodiment, an insertion hole 8 for inserting the bottom end of the adapter body 1 is formed in the top of the secondary adapter 7, and meanwhile, in order to connect the adapter body and the secondary adapter, in the embodiment, an annular groove 3 is formed in the outer wall of the bottom end of the adapter body 1, a corresponding limiting hole 17 is formed in the secondary adapter 7, a limiting post 11 is in threaded connection with the limiting hole 17, when the bottom end of the adapter body 1 is inserted into the insertion hole 8, the inner end of the limiting post 11 can be inserted into the annular groove 3 by screwing, so that the relative axial movement of the adapter body 1 and the secondary adapter 7 is limited, and the adapter body 1 and the secondary adapter 7 can only do relative pivoting movement;

particularly, in order to ensure that the acting force of the limiting columns 11 on the annular groove 3 is uniform during limiting, in the embodiment, a plurality of limiting bodies formed by the limiting columns 11 and the limiting blocks 10 are integrally distributed and uniformly distributed around the shaft, so that the inner ends of the limiting columns 11 are inserted into the annular groove 3, the acting force can be effectively provided for the rotary joint body 1, and the purpose of uniform acting force is realized;

particularly, in order to achieve that the adapter body 1 and the secondary adapter 7 can relatively rotate to avoid overload when the target torque is exceeded, in the embodiment, a radial compression hole 4 is firstly formed in the outer wall of the bottom end of the adapter body 1, a spring 5 and a steel ball 6 are arranged in the compression hole 4, the outer diameter of the spring 5 is the same as the inner diameter of the compression hole 4, the inner diameter of the spring 5 is smaller than the outer diameter of the steel ball 6, and the steel ball 6 is located outside the outer end of the spring 5; secondly, a radial adjusting hole 12 is formed in the secondary adapter 7, and an adjusting column 13 is connected to the adjusting hole 12 in a threaded manner; when inserting patchhole 8 in the adapter body 1 bottom, revolve to twist and adjust post 13 and make and adjust the inner outer end of tight top steel ball 6 of post 13, spring 5 is compressed, the part that steel ball 6 was no less than half this moment is in compression hole 4 simultaneously, part is in adjusting hole 12 in the rest part and the remaining then is in between adapter body 1 bottom outer wall and patchhole 8 inner wall, when the power top limit value that secondary adapter 7 received promptly, drive steel ball 6 in the part of adjusting hole 12 in an instant after inwards contracting to patchhole 8, relative rotary motion takes place for adapter body 1 and secondary adapter 7.

In particular, in order to reduce the rotation amplitude of the adapter body 1 and the secondary adapter 7 during relative rotation, in this embodiment, the whole adjustment body formed by the compression holes 4, the springs 5, the steel balls 6, the adjustment holes 12 and the adjustment columns 13 is made to be a plurality of and is uniformly distributed around the shaft; thereby on the one hand a plurality of steel balls 6 and spring 5's setting can provide multiunit counter force, has reduced the resistance requirement to single spring 5, secondly, multiunit setting can make adapter body 1 and secondary adapter 7 take place relative rotation and detour certain stroke after, steel ball 6 can get into next regulation hole 12 once more, reaches the purpose that prevents to continue the rotation, but operating personnel response back stop fast and exert force, reduced rotation amplitude.

In particular, in order to reduce the damage to the steel ball 6 and the adjusting hole 12, in this embodiment, the inner wall of the adjusting column 13 is first made to be the groove surface 14 that can be attached to the outer end of the steel ball 6, that is, the steel ball 6 is in surface contact with the inner wall of the adjusting column 13, so that on one hand, the friction between the two can be increased, the operation effect is improved, on the other hand, the abrasion to the steel ball 6 can be reduced, and the service life is prolonged.

Through the arrangement, the service life of the steel ball 6 can be effectively prolonged.

In particular, in order to adjust different torque extreme values according to requirements, in this embodiment, the spring 5 in each compression hole 4 is made to have multiple specifications, the spring 5 in each compression hole 4 is of the same specification, and in the same compression hole 4, when the spring 5 and the steel ball 6 are both arranged in the compression hole 4 and the steel ball 6 is tightly jacked to the same position by the adjusting column 13, the acting force of each spring 5 on the steel ball 6 is different, so that the purpose of improving different extreme values is achieved.

In particular, in order to facilitate the replacement of the spring 5, in this embodiment, the adjusting column 13 is an integral structure formed by an external connecting column 15 and an internal pressing column 16 which are coaxially distributed, the external diameter of the internal pressing column 16 is equal to the external diameter of the steel ball 6 and smaller than the external diameter of the external connecting column 15, the external section of the adjusting hole 12 is in threaded connection with the external connecting column 15, the internal section is attached to the internal pressing column 16, the outer wall of the external end of the internal pressing column 16 is fixedly connected with a limiting block 10, the inner wall of the adjusting hole 12 corresponding to the internal section is further provided with a limiting groove 18 for the limiting block 10 to be inserted into, the limiting groove 18 prevents the internal pressing column 16 from sliding radially into the insertion hole 8, when the limiting block 10 is positioned in the limiting groove 18 and the internal pressing column 16 is pressed by the external connecting column 15, the bottom of the internal pressing column 16 and the inner wall of the insertion hole 8 are positioned on the same curved surface, the top ends of the limiting column 11 and the adjusting column 13 are both provided with adjusting square holes 19, the screwing is convenient;

when being initial, put into spring 5 and steel ball 6 in proper order by patchhole 8 outer end earlier and get into compression hole 4, then locate patchhole 8 inner segment with inside compressing tightly post 16 through stopper 10 and spacing groove 18's cooperation, later screw outside spliced pole 15, make inside 16 rigidity that compress tightly, the concave surface 14 and the laminating of steel ball 6 outer end on the inside 16 inner walls that compress tightly post, inside inner wall and the setting on the same curved surface of patchhole 8 inner wall that compress tightly post 16, can effectively reduce the destruction to steel ball 6 and patchhole 8 inner segment outer fringe when adapter body 1 and secondary adapter 7 relative rotation, the life of steel ball 6 has been improved.

Particularly, in order to facilitate grasping the rotation progress of the external connection column 15, in the embodiment, the outer end of the adjustment column 13 is sleeved with a limit ring 20 integrated with the adjustment column, the outer edge of the cross section of the secondary adapter 7 is a regular polygon, and the length of each edge is greater than the outer diameter of the limit ring 20; namely, the outer connecting column 15 stops rotating after the limiting ring 20 contacts with the outer wall of the secondary adapter 7, so that the difficulty of screwing the outer connecting column 15 is reduced.

In particular, in order to expand the application range of the device, in the present embodiment, the square joint 9 is an integral structure formed by a first square joint 21 and a second square joint 22, and the side length of the cross section of the first square joint 21 is greater than that of the cross section of the second square joint 22, and the first square joint 21 is located at the top of the second square joint 22; utilize two square joint blocks promptly, can make the square hole of secondary adapter 7 and two kinds of specifications be connected, the application range of the improve equipment of being convenient for.

In particular, in order to facilitate the connection of the adapter body 1 and the secondary adapter 7, in this embodiment, the adapter body 1 is specifically composed of the first cylindrical part and the second cylindrical part, the square hole 2 is opened at the top of the first cylindrical part, the bottom of the first cylindrical part is in the shape of an inverted step, the bottom of the first cylindrical part is connected with the lower half part integrated with the first cylindrical part, the outer diameter of the top end of the lower half part is smaller than the outer diameter of the bottom of the first cylindrical part, namely, a space exists between the lower half part and the first cylindrical part, and the lower half part is convenient to insert into the insertion hole 8.

The working principle is as follows:

firstly, inserting the middle-lower half part of the adapter body 1 into the insertion hole 8, then adjusting the limiting column 11 through the adjusting square hole 19 to enable the bottom end of the limiting column to be inserted into the annular groove 3, and achieving the purpose of limiting the relative axial movement of the adapter body 1 and the secondary adapter 7; then, a spring 5 and a steel ball 6 are sequentially placed into the compression hole 4 from the outer end of the adjusting hole 12, then the inner pressing column 16 is placed, the limiting block 10 is inserted into the limiting groove 18, the bottom of the inner pressing column 16 and the inner wall of the insertion hole 8 are positioned, and the inner pressing column and the insertion hole are in the same curved surface; then, the external connecting column 15 is screwed to enable the limiting ring 20 to be attached to the outer wall of the secondary adapter 7, and then the screwing is stopped, so that the equipment is installed; when the device is used, the spring 5 provides radial force for the steel ball 6, so that the outer end of the steel ball 6 is positioned in the groove surface 14 and tightly attached to the groove surface, when external torque reaches a value capable of breaking through the friction force between the steel ball 6 and the groove surface 14, the steel ball 6 is instantly separated from the groove surface 14, the steel ball 6 moves into the compression hole 4 or the top end of the steel ball is in point contact with the inner wall of the insertion hole 8, the adapter body 1 and the secondary adapter 7 perform relative rotation movement, so that the secondary adapter 7 does not generate torque on external equipment any more, meanwhile, a certain friction force is generated again when the steel ball 6 reaches the next groove surface 14, the adapter body 1 and the secondary adapter 7 are prevented from sliding relatively, and external operators stop applying force immediately when perceiving that the rotation occurs in the period, thereby achieving the problem of torque control and avoiding the defects of high cost or difficult control of traditional devices; when the torque extreme value needs to be replaced, the spring 5 is replaced through the external connecting column 15, and the purpose of changing the torque extreme value is achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A torque adapter comprises an adapter body, wherein the top of the adapter body is provided with a square hole which is coaxially distributed with the adapter body and used for external connection, the torque adapter is characterized in that the bottom of the adapter body is cylindrical, the outer wall of the bottom of the adapter body is provided with a ring groove, the outer wall of the bottom of the adapter body is also provided with a compression hole, a spring and a steel ball with the same outer diameter as the compression hole are sequentially arranged in the compression hole, the inner diameter of the spring is smaller than the outer diameter of the steel ball, the outer end of the spring is provided with the steel ball, a secondary adapter is arranged below the adapter body, the top of the secondary adapter is provided with an insertion hole for inserting the bottom of the adapter body, the bottom of the secondary adapter is connected with the square adapter which is integrated with the secondary adapter, the outer wall of the top of the secondary adapter is provided with a limit hole corresponding to the ring groove, spacing downthehole threaded connection has spacing post, still seted up on the outer wall of secondary adapter with the regulation hole that the compression hole corresponds, regulation hole threaded connection has the regulation post, just when the bottom of adapter body was inserted in the insert hole, the inner of spacing post can be deepened stop in the ring channel adapter body axial motion, and the inner of regulation post then tightly pushes up the steel ball, and this moment the steel ball is no less than half part and is in the remaining part in the compression hole part be in the adjustment hole and remaining then be in adapter body bottom outer wall with between the insert hole inner wall, just the steel ball can be in the external drive shrink is downthehole to the compression when adapter body and secondary adapter rotate relatively.

2. The torque adapter according to claim 1, wherein the side wall of the adjustment post facing the ball is a recessed surface adapted to engage the outer end of the ball.

3. The torque adapter according to claim 2, wherein said spring is plural; when the springs and the steel balls are arranged in the compression holes and the steel balls are tightly jacked to the same position by the groove surfaces in the adjusting columns, the acting force of each spring on the steel balls is different.

4. The torque adapter as claimed in claim 3, wherein the adjusting post is an integral structure of an external connecting post and an internal pressing post which are coaxially distributed, the external diameter of the internal pressing post is equal to the external diameter of the steel ball and smaller than the external diameter of the external connecting post, the external section of the adjusting hole is in threaded connection with the external connecting post, the internal section of the adjusting hole is attached to the internal pressing post, the external end of the internal pressing post is fixedly connected with a limiting block, the inner wall of the adjusting hole is further provided with a limiting groove for insertion of the limiting block, and the limiting groove prevents the internal pressing post from moving radially inwards in the insertion hole.

5. The torque adapter as claimed in claim 4, wherein when the limiting block is located in the limiting groove and the internal compression column is tightly pressed against the external connection column, the side wall of the internal compression column facing the steel ball and the inner wall of the insertion hole are located on the same curved surface, and the outer walls of the limiting column and the adjusting column are both provided with adjusting square holes.

6. The torque adapter according to claim 5, wherein the plurality of retaining members comprise a plurality of retaining holes and retaining posts, and the plurality of retaining members are axially and uniformly distributed around the adapter body.

7. The torque adapter according to claim 6, wherein said compression bore, spring, steel ball, adjustment bore and adjustment post comprise an adjustment assembly, such that said adjustment assembly is a plurality of said adjustment assemblies, and wherein said adjustment assemblies are axially and uniformly distributed about said adapter body.

8. The torque adapter according to any one of claims 1-7, wherein the adjusting post has a stop ring integrally formed around an outer end thereof, and wherein the outer edge of the cross-section of the secondary adapter is a regular polygon, and the length of each side is greater than the outer diameter of the stop ring.

9. The torque adapter as claimed in claim 8, wherein the square connector is a unitary structure of a first square block and a second square block, and the side length of the cross section of the first square block is greater than the side length of the cross section of the second square block, and the first square block is located at the top of the second square block.

10. The torque adapter according to claim 9, wherein the adapter body comprises a cylindrical upper half and a cylindrical lower half, the square hole is formed at the top of the upper half, the bottom end of the upper half is in an inverted step shape, the lower half is connected to the bottom of the upper half integrally, and the outer diameter of the top end of the lower half is smaller than the outer diameter of the bottom of the upper half.

Images