CN2299690Y

CN2299690Y - Multi-functional socket wrench

Info

Publication number: CN2299690Y
Application number: CN 97216606
Authority: CN
Inventors: 赖俊彦
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-27
Filing date: 1997-05-27
Publication date: 1998-12-09
Anticipated expiration: 2007-05-27

Abstract

The utility model discloses a multifunctional socket spanner. The utility model comprises a three-segment type spanner body connected by a rotating shaft, an auxiliary arm for the convenience of boosting and a plurality of socket joints in the metric or in the English system. The three-segment type spanner body also comprises a segment of joint head body rotating in a clockwise direction, a segment of spanner handle and a segment of joint head body rotating in an anti-clockwise direction. The joint head body rotating in a clockwise direction and the joint head body rotating in an anti-clockwise direction apply a meshing principle of a self-locking fluted disc and are matched with the combination action of a meshing spring to realize the purposes that the same socket spanner can be applied in two directions and can also bear high torque.

Description

Multi-functional box spanner

The utility model relates to a kind of multi-functional box spanner, especially a kind of box spanner that is applied to auto industry.

At present, known box spanner is one group of combination that comprises free wrench handle, universal joint, extension rod, motion bar (TM bar), flexible handle (F bar), joint and several English systems or metric system sleeve.In use, cooperate and need different elements according to the difference of applied environment.Therefore box spanner commonly used is in being applied to than complex operating environment the time, during as motor vehicle repair, flight-line maintenance etc., because of needs are constantly changed the rod member combination, uses inconvenience and make.

In addition, free wrench handle is that ratchet mechanism is totally unfavorable for stronger torsional interaction, thereby has also limited the range of application of existing box spanner with ratchet regulation and control conversion application direction.

The purpose of this utility model is: a kind of multi-functional box spanner is provided, make it can adapt to various working environments, and use convenient and swift, cooperate with existing English system and metric system sleeve, in order to free wrench handle, universal joint, extension rod, motion bar, flexible handle and the joint that replaces existing box spanner.Make multi-functional box spanner can bear high moment of torsion simultaneously, to improve the problem that present ratchet spanner bears the moment of torsion deficiency.

The purpose of this utility model is to realize like this; In a kind of multi-functional box spanner with some muff joints, also include a wrench body and a sub-arm.Wrench body is one three member that joint is rotationally connected, and its stage casing is a spanner handle, and respectively there is a reach through hole both sides of spanner handle.And connect a conrotatory fittings body and a contrary rotary joint body with a rotating shaft respectively at the two ends of spanner handle.Sub-arm is a body of rod, through the reach through hole of spanner handle.One end of several muff joints is connected with the conrotatory fittings body of wrench body and contrary rotary joint body, and the other end is connected with sleeve.

Conrotatory fittings body of the present utility model and contrary rotary joint body are the identical assembly of member, all have a steering knuckle, a driving end, a spring pedestal, a joint spring and a retaining ring.One end of steering knuckle combines so that a rotating shaft and spanner handle are terminal, and the other end is a conrotatory fluted disc for the conrotatory fittings body, is one contraryly to revolve fluted disc for contrary rotary joint body, and the center is a reach through hole.One end of driving end is a fluted disc, respectively with the conrotatory fluted disc of above-mentioned steering knuckle or against revolving the gear train that fluted disc meshes into a unidirectional self-lock.Its center has a break-through shoulder hole, and less near the internal diameter of this fluted disc end.The endoporus of the other end then engages with muff joint when using.The spring pedestal is a multidiameter, and an end enters the reach through hole of steering knuckle, and becomes to closely cooperate with this hole wall, and the other end places in the break-through shoulder hole of driving end.The joint spring is a compression spring, and locking device is in the shoulder hole of driving end.And be installed on the spring pedestal.Retaining ring is arranged on a conrotatory fluted disc or a contrary protection ring body that revolves the fluted disc field of conjugate action.

Owing to take above-mentioned measure, conrotatory fittings body of the present utility model and contrary rotary joint body are used the theory of engagement of self-locking fluted disc, cooperate the compound action of an engage spring group again, use both bidirectional applications of same set of barrel spanner, the purpose that can bear high moment of torsion again but reach.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is a stereogram of the present utility model

Fig. 2 is an end decomposing section of wrench body

Fig. 3 is that an end of wrench body is in conjunction with profile

Fig. 4 is the profile of muff joint

Among the figure, 10. wrench body 11. spanner handles 12. steering knuckles 13. driving ends

14. spring pedestal 15. springs 16. balls 17. retaining rings 18. rotating shafts

19. joint spring 20. muff joints 21. muff joint bodies 22. balls

23. limit collar 24. springs 25. balls 30. sub-arms

Figure 1 shows that the stereogram of the multi-functional box spanner of the utility model, the utility model includes a wrench body 10, a sub-arm 30, reaches several muff joints 20.

Fig. 2 and shown in Figure 3 be an end decomposing section of wrench body 10 and in conjunction with profile, this wrench body 10 is that one three joint is rotationally connected, the member of two ends symmetry, its stage casing is a spanner handle 11, respectively there is a reach through hole both sides of spanner handle 11, and are connected with a conrotatory fittings body and a contrary rotary joint body with a rotating shaft 18 respectively at the two ends of spanner handle 11.

Conrotatory fittings body and contrary rotary joint body are the identical assembly of configuration; be rotationally connected with above-mentioned spanner handle 11 with a steering knuckle 12 with axial centre reach through hole; the other end of steering knuckle 12 is provided with the retaining ring 17 of a protection usefulness then with the contrate gear engagement of a conrotatory fluted disc and a driving end 13 in the periphery of the field of conjugate action.Because the tooth of mate gear group is a helical teeth shape, so become the gear train of a unidirectional self-lock when engagement, the center of driving end 13 is a break-through shoulder hole, and less near the internal diameter of fluted disc end, the endoporus of the other end engages with above-mentioned muff joint 20 when using.

As previously mentioned, conrotatory fittings body and contrary rotary joint body are the identical assembly of configuration, one is that conrotatory, is contrary purpose of revolving when how to be implemented in application as for this, be the coexist fluted discs of driving end 13 of contrary rotary joint body of steering knuckle 12 fluted discs of utilization conrotatory fittings body, and steering knuckle 12 fluted discs of contrary rotary joint body are identical with the fluted disc of the driving end 13 of conrotatory fittings body.

Between the center reach through hole of driving end 13 central stepped and above-mentioned steering knuckle 12, a compression spring set is housed closes, compression spring set is closed a spring pedestal 14 and a joint spring 19 that includes a multidiameter shape.The base of spring pedestal 14 places in the break-through shoulder hole of driving end 13, and the other end then penetrates the reach through hole of steering knuckle 12 and becomes to closely cooperate with the reach through hole hole wall; And joint spring 19 is a compression spring, and device is on spring pedestal 14, and locking device is in the shoulder hole of driving end 13.

Above-mentioned spring pedestal 14 is provided with a ball spring top bolt again at an end of steering knuckle 12, and this ball spring top bolt supports ball 16 with the compression reaction power of spring 15, and makes ball 16 prop up the end face that spanner handle 11 contacts with steering knuckle 12.For cooperating ball spring top bolt, on the terminal contact-making surface of above-mentioned spanner handle 11, be provided with the pit of several calibration.

Sub-arm 30 is a body of rod, in order to running through the reach through hole of above-mentioned spanner handle 11, prolonging the arm of force, and changes and adds force direction, and an end of sub-arm 30 is a shovel body, in order to carry out operations such as scale removal, shovel ice and dismounting wheel cover.

The utility model also has several muff joints 20, and shown in the profile of Fig. 4, an end of muff joint 20 is connected with the driving end 13 of above-mentioned wrench body 10 conrotatory fittings bodies or contrary rotary joint body, and the other end is connected with applied sleeve.Muff joint 20 includes a muff joint body 21, a ball 22, a limit collar 23, a ball 25, reaches a spring 24.

One end of muff joint body 21 is provided with an axial blind hole, and the hole wall of axial blind hole runs through and is provided with ball 22, and its outer wall is provided with the limit collar 23 of a restriction ball 22, to form a top bolt with ball 22, is connected with above-mentioned driving end 13.For cooperating this top bolt, on the ladder endoporus of driving end 13 and hole wall that muff joint 20 cooperates, around being provided with several pits.

And, being provided with a blind hole at the other end side of muff joint body 21, another ball spring top bolt of being made up of ball 25 and spring 24 with installing is connected with applied sleeve guaranteeing.

The link of above-mentioned muff joint 20 and sleeve can be British system specification or is metric system structure, with the sleeve fit applications of different size.

Claims

1. a multi-functional box spanner has some muff joints (20), it is characterized in that: said box spanner also includes a wrench body (10) and a sub-arm (30); Wrench body (10) is one three member that joint is rotationally connected, its stage casing is a spanner handle (11), respectively there is a reach through hole both sides of spanner handle (11), and connect a conrotatory fittings body and a contrary rotary joint body with a rotating shaft (18) respectively at the two ends of spanner handle (11); Sub-arm (30) is a body of rod, through the reach through hole of spanner handle (11); One end of several muff joints (20) is connected with the conrotatory fittings body and the contrary rotary joint body of wrench body (10), and the other end is connected with sleeve.

2. multi-functional box spanner according to claim 1 is characterized in that: described conrotatory fittings body includes: a steering knuckle (12), a driving end (13), a spring pedestal (14), a joint spring (19) and a retaining ring (17); One end of steering knuckle (12) is with a rotating shaft and terminal combination of spanner handle (11), and the other end is a conrotatory fluted disc, and the center is a reach through hole; One end of driving end (13) is a fluted disc, mesh into the gear train of a unidirectional self-lock with the conrotatory fluted disc of above-mentioned steering knuckle (12), its center has a break-through shoulder hole, and less near the internal diameter of this fluted disc end, the endoporus of the other end then engages with above-mentioned muff joint (20) when using; Spring pedestal (14) is a multidiameter, one end enters the reach through hole of above-mentioned steering knuckle (12), and become to closely cooperate with this hole wall, the other end then places in the break-through shoulder hole of above-mentioned driving end (13), joint spring (19) is a compression spring, locking device and is installed on the spring pedestal (14) in the shoulder hole of above-mentioned driving end (13); Retaining ring (17) is arranged on a protection ring body of the above-mentioned conrotatory fluted disc field of conjugate action.

3. multi-functional box spanner according to claim 2, it is characterized in that: the end of described spring pedestal (14) in steering knuckle (12) is provided with a ball spring top bolt again, and the ball (16) of this ball spring top bolt props up the end face that spanner handle (11) contacts with steering knuckle (12).

4. multi-functional box spanner according to claim 1 is characterized in that: described contrary rotary joint body comprises: a steering knuckle (12), a driving end (13), a spring pedestal (14), a joint spring (19) and a retaining ring (17); One end of steering knuckle (12) combines so that a rotating shaft and spanner handle are terminal, and the other end is one contraryly to revolve fluted disc, and there is a reach through hole at the center; One end of driving end (13) is a fluted disc, revolve the gear train that fluted disc meshes into a unidirectional self-lock with above-mentioned steering knuckle (12) contrary, there is a break-through shoulder hole at its center, and less near the internal diameter of this fluted disc end, the endoporus of the other end then engages with above-mentioned muff joint (20) when using; Spring pedestal (14) is a multidiameter, and an end enters the reach through hole of above-mentioned steering knuckle (12), and becomes to closely cooperate with this hole wall, and the other end then places in the break-through shoulder hole of above-mentioned driving end (13); Joint spring (19) is a compression spring, and locking device and is installed on the spring pedestal (14) in the shoulder hole of above-mentioned driving end (13); Retaining ring (17) is arranged on an above-mentioned contrary protection ring body that revolves the fluted disc field of conjugate action.

5. multi-functional box spanner according to claim 4, it is characterized in that: described spring pedestal (14) is provided with a ball spring top bolt again at an end of steering knuckle (12), and the ball (16) of this ball spring top bolt supports the end face that post spanner handle (11) contacts with steering knuckle (12).

6. multi-functional box spanner according to claim 1, it is characterized in that: described spanner handle (11) two ends and above-mentioned conrotatory fittings body and contrary rotary joint body contact end face, be provided with several calibration pit again, to cooperate with the ball (16) of the ball spring top bolt of steering knuckle (12).

7. multi-functional box spanner according to claim 1 is characterized in that: an end of described sub-arm (30) is a shovel body.

8. multi-functional box spanner according to claim 1 is characterized in that: described muff joint (20) is provided with a ball spring top bolt with the side of sleeve link.

9. multi-functional box spanner according to claim 1, it is characterized in that: described muff joint (20) is provided with an axial blind hole with the end that the conrotatory fittings body and the contrary rotary joint body of wrench body (10) are connected, and the hole wall of this axial blind hole is penetrated with a ball top bolt; Outer wall in muff joint (20) is provided with a limit collar (23) that limits this ball top bolt.

10. multi-functional box spanner according to claim 9 is characterized in that: on the hole wall of described conrotatory fittings body and muff joint (20) link around being provided with several pits, to cooperate with the ball top bolt of muff joint.

11. multi-functional box spanner according to claim 9 is characterized in that: on the hole wall of described contrary rotary joint body and muff joint (20) link around being provided with several pits, to cooperate with the ball top bolt of muff joint.

12. multi-functional box spanner according to claim 1 is characterized in that: the end that described muff joint (20) is connected with sleeve is the metric system joint.

13. multi-functional box spanner according to claim 1 is characterized in that: the end that described muff joint (20) is connected with sleeve is a joint made in Great Britain.