TWI715213B - Sleeve structure that can avoid the slippage of screwdriver - Google Patents

Abstract

A sleeve structure that can avoid the slippage of screwdriver, an outer surface of the screwdriver is defined with a plurality of locking grooves, the sleeve structure comprises a sleeve part having a mounting portion and two receiving holes, two engaging members slidably disposed in the receiving holes, a C-shaped annular member locked with the mounting portion, a spring member mounted on the mounting portion, a restriction member mounted on the mounting portion, and a driving member disposed on the C-shaped annular member, the spring member and the restriction member, and has an inner wall annular surface, an annular groove concave from the inner wall annular surface for abutting against the C-shaped annular member, and a convex annular segment protruding from the inner wall annular surface, avoiding the slippage of the screwdriver when in use, and solving high processing precision and high manufacturing cost of the conventional structure.

Description

Sleeve structure to avoid slippage of screwdriver head

The present invention is related to the sleeve structure, and particularly refers to a sleeve structure used to connect a driving tool and a driver bit to prevent the driver bit from slipping off.

1A to 1B, it is a common sleeve tool. The sleeve tool includes a sleeve member 10, two ball members 11, a C-ring member 12, a spring member 13, and a driving member 14. The sleeve member 10 has a socket hole 101 for connecting a subhead 15, a buckling groove 102 for buckling the C-shaped ring 12, and a buckling groove 102 connected to the buckling groove 102 for the spring member. The annular convex section 103 on which one end abuts against, and two accommodating slots 104 for the two ball members 11 to pass through, and when the sleeve tool is in use, the user only needs to push the driving member 14 to the right to make When the driving member 14 approaches the sleeve member 10, the spring member 13 will be compressed at this time, and part of the spherical surfaces of the two ball members 11 will not protrude from the socket hole 101, so that the driver bit 15 Inserted or taken out of the socket hole 101, whereby the socket hole 101 can be equipped with different sizes or types of screwdriver heads 15 according to the needs of users, so as to improve work efficiency; however, the socket tool There are still the following deficiencies in use:

First: When the front end of the driving member 14 accidentally collides with an object, the spring member 13 may be compressed, so that the screwdriver head 15 is not clamped and fixed by the two ball parts 11, which causes the screwdriver head 15 to slip off In the case of the socket hole 101.

Second: The screwdriver head 15 falls due to slippage and will cause cracking and damage problems, which will give people a bad use experience with a shorter service life.

Third: The direction of the screwdriver head 15 after it slips off cannot be effectively predicted, which may cause the user to be injured.

Fourth: the sleeve member 10 is provided with the buckling groove 102 for the C-shaped ring member 12 to be firmly buckled, and for the end of the spring member 13 to be pressed against, therefore, is provided with a connection to the buckling groove 102 The annular convex section 103, however, also has many processing steps, which will cause the problems of extremely high processing precision, cumbersome working procedures and high manufacturing cost.

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the creators of the present invention and the related industries who are engaged in this field urgently desire to study and improve.

The purpose of the present invention is to provide a sleeve structure that can prevent the screwdriver head from slipping off, avoiding the problem of the screwdriver head slipping off during use, thereby improving the safety of use and extending the service life of the screwdriver head.

Another object of the present invention is to provide a sleeve structure that can prevent the screwdriver head from slipping off, which is mainly to solve the problems that the conventional structure requires extremely high machining accuracy, complicated procedures and high manufacturing cost.

The reason is that, in order to achieve the foregoing objective, according to the present invention, a sleeve structure that can prevent the screwdriver head from slipping off is provided, which is suitable for use with a screwdriver. The outer surface of the screwdriver head is recessed with a plurality of grooves, including:

A sleeve member extending along an axial direction and having a set portion and two accommodating slots recessed by the sleeve portion;

Two pressure catches are respectively slidably installed in each accommodating slot hole;

A C-ring is fastened on the sleeve part;

A spring piece sleeved on the sleeve portion and one end abuts against the C-shaped ring piece;

A limit piece, sleeved on the sleeve portion and for the other end of the spring piece to abut; and

A driving member is sleeved on the C-ring member, the spring member and the limiting member. The driving member can move along the axial direction between a first position and a second position, and has a surface facing the The inner wall ring surface of the spring member and the limiting member, a ring groove recessed from the inner wall ring surface and for the C-shaped ring member to abut, and a convex ring segment protruding from the inner wall ring surface , When the driving member is in the first position, the spring member returns to an uncompressed state and the convex ring segment abuts the two pressing members, so that the two pressing members are pressed and positioned on the two of the screwdriver head The driving member is close to the connecting portion of the sleeve member. When the driving member is in the second position, the spring member is compressed and the convex ring segment does not abut against the two pressing members, making the two pressing members The catch can be dragged away from the two clamping slots of the screwdriver head, and the driving part is far away from the connecting part of the sleeve part.

Preferably, the pressing member is a ball.

Preferably, the limiting member has an abutting ring surface for abutting one end of the spring member.

Preferably, the sleeve portion is recessed with a positioning ring groove that is close to the two accommodating slots and for the limiting member to be positioned against.

Preferably, the C-shaped ring member has a resisting surface for abutting one end of the spring member.

Accordingly, the present invention provides a sleeve structure that can prevent the screwdriver head from slipping, which is mainly composed of the sleeve member, the two pressing members, the C-ring member, the spring member, the limiting member, and the driving member. The characteristic is that the driving direction of the driving member is different from the driving direction of conventional technology. The driving member of the present invention is driven away from the sleeve member. When the front end of the driving member accidentally hits an object, the spring The components will not be compressed to avoid the problem of slippage of the screwdriver head when the sleeve structure is in use, thereby improving the safety of use and extending the service life of the screwdriver head.

In addition, compared with the structure of the conventional technology, the C-shaped ring of the present invention is buckled on the sleeve part of the sleeve member and abuts against the ring groove of the driving member, so that the C-shaped ring can be directly supplied One end of the spring member is against, so that the process can be simplified, the manufacturing cost can be reduced, and the purpose of the invention can be achieved.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following examples are given. And with the attached drawings, the detailed description is as follows.

The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiment with reference to the drawings.

Please refer to FIG. 2 to FIG. 4B. The first embodiment of the present invention provides a sleeve structure that can prevent the screwdriver head from slipping off. It is suitable for use with a screwdriver S, and the outer surface of the screwdriver S is recessed with a plurality of grooves S1, the sleeve structure that can prevent the screwdriver head from slipping off is mainly composed of a sleeve member 20, two pressing members 30, a C-ring member 40, a spring member 50, a limiting member 60, and a driving member 70 Composed of:

The sleeve member 20 extends along an axial direction X, and has a set portion 21, two accommodating slots 22 recessed by the set portion 21, and a connecting and sleeved accommodating slots 22 The socket hole 23 of the screwdriver head S, the socket hole 23 is hexagonal; in this embodiment, the sleeve member 20 also has a connecting portion 24 connecting the sleeve portion 21, and the outer portion of the connecting portion 24 The diameter is larger than the outer diameter of the sleeve portion 21, and the connecting portion 24 is used to connect a driving tool (for example, a wrench tool or a pneumatic tool).

Two pressing members 30 are respectively slidably installed in each of the accommodating slots 22, and when the sleeve structure that can prevent the screwdriver head from slipping off under normal conditions, part of the spherical surface of each pressing member 30 will protrude To the socket hole 23; in this embodiment, the pressing member 30 uses a ball as an example, but it is not limited thereto.

The C-shaped ring 40 is buckled on the sleeve portion 21 and has a resisting surface 41.

The spring member 50 is sleeved on the sleeve portion 21 and one end abuts the C-ring member, and has a first elastic contact surface 51 that abuts against the resisting surface 41 of the C-ring member 40, and a first elastic contact surface 51 opposite to The first elastic contact surface 51 is a second elastic contact surface 52.

The limiting member 60 is sleeved on the sleeve portion 21 and is pressed by the other end of the spring member 50, and has an abutting ring surface 61 that abuts the second elastic abutting surface 52.

The driving member 70 is sleeved on the C-ring member 40, the spring member 50 and the limiting member 60. The driving member 70 can move between a first position P1 and a second position P2 along the axial direction. , And has an inner wall ring surface 71 facing the spring member 50 and the limiting member 60, a ring groove 72 recessed by the inner wall ring surface 71 and for the C-shaped ring member 40 to abut, and A convex ring segment 73 protruding from the inner wall ring surface 71, when the driving member 70 is in the first position P1, the spring member 50 returns to an uncompressed state and the convex ring segment 73 resists the two pressures The detent 30 makes the two pressing detents 30 abut against the two locking slots S1 of the screwdriver head S. The end of the driving member 70 will be close to the connecting portion 24 of the sleeve member 20. When the driving member 70 In the second position P2 (referring to the user moving the driving member 70 to the left, as shown in FIG. 4B), the end of the driving member 70 will be far away from the connecting portion 24 of the sleeve member 20, and the spring member 50 will be compressed and the convex ring segment 73 does not abut the two pressing members 30, so that the two pressing members 30 can be dragged away from the two clamping slots S1 of the driver head S.

The above is the configuration description of the main components of the embodiment of the present invention. As for the use mode and effect of the present invention, the following description is given.

Accordingly, the present invention provides a sleeve structure that can prevent the screwdriver head from slipping. The feature is that the driving direction of the driving member 70 is different from the driving direction of the conventional technology. The driving member 70 of the present invention is driven by the end will Away from the connecting portion 24 of the sleeve member 20, when the front end of the driving member 70 accidentally collides with an object, the spring member will not be compressed to prevent the driver bit S from slipping off when the sleeve structure is in use The problem of the socket hole 23 occurs, thereby improving the safety of use and the purpose of extending the service life of the driver bit S.

In addition, compared with the structure of the conventional technology, the C-shaped ring member 40 of the present invention is buckled on the sleeve portion 21 of the sleeve member 20 and abuts against the ring groove 72 of the driving member 70, so that the C-shaped ring The ring member 40 can be directly supported by one end of the spring member 50. In this way, the process can be simplified, the manufacturing cost can be reduced, and the purpose of the invention can be achieved.

Referring to FIGS. 5A to 5B, a second embodiment of the present invention provides a sleeve structure that can prevent the screwdriver head from slipping off. The difference from the above-mentioned first embodiment is that the sleeve portion 21 is also recessed near the The two locating ring grooves 25 that accommodate the grooves 22 and allow the limiting member 60 to be positioned against can achieve the same effect as the above, and can also enhance the stable fixed position of the limiting member 60.

In summary, the above-mentioned embodiments and drawings are only preferred embodiments of the present invention. When they cannot be used to limit the scope of implementation of the present invention, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall be applied. It belongs to the scope of the invention patent.

﹝Used﹞ 10: Sleeve pieces 101: Socket hole 102: Buckle slot 103: Ring convex section 104: receiving slot 11: Two ball pieces 12: C-ring 13: Spring parts 14: Driver 15: Screwdriver head ﹝this invention﹞ S: Screwdriver head S1: Card slot X: axial P1: first position P2: second position 20: Sleeve piece 21: Set-up Department 22: receiving slot 23: Socket hole 24: Connection part 25: locating ring groove 30: pressure catch 40: C-ring 41: Resistance 50: spring parts 51: The first bullet arrives 52: The second bullet arrives 60: limit piece 61: reach the top ring 70: drive 71: inner ring surface 72: ring groove 73: Convex ring segment

Figure 1A is a structural cross-sectional view of a conventional sleeve tool (1). Figure 1B is a structural cross-sectional view of a conventional sleeve tool (2). Fig. 2 is an exploded perspective view of the first embodiment of the present invention. Fig. 3 is a perspective view of the first embodiment of the present invention. Fig. 4A is a use state diagram (1) of the first embodiment of the present invention, showing a state where the driving member is not pushed. Fig. 4B is a use state diagram (2) of the first embodiment of the present invention, showing the state of the driving member being pushed. Fig. 5A is a diagram (1) of the use state of the second embodiment of the present invention. Fig. 5B is a diagram (2) of the use state of the second embodiment of the present invention.

S: Screwdriver head

S1: Card slot

P1: first position

20: Sleeve piece

21: Set-up Department

22: receiving slot

23: Socket hole

24: Connection part

30: pressure catch

40: C-ring

41: Resistance

50: spring parts

51: The first bullet arrives

52: The second bullet arrives

60: limit piece

61: reach the top ring

70: drive

71: inner ring surface

72: ring groove

73: Convex ring segment

Claims (5)

A sleeve structure that can prevent the screwdriver head from slipping off is suitable for use with a screwdriver head. The outer surface of the screwdriver head is recessed with a plurality of card slots, including: A sleeve member extending along an axial direction, and having a sleeve part, two accommodating slots recessed by the sleeve part, and a connecting part connecting the sleeve part; Two pressure catches are respectively slidably installed in each accommodating slot hole; A C-ring is fastened to the sleeve part; A spring piece sleeved on the sleeve portion and one end abuts against the C-shaped ring piece; A limit piece, sleeved on the sleeve portion and for the other end of the spring piece to abut; and A driving member sleeved on the C-ring member, the spring member and the limiting member, the driving member can move between a first position and a second position along the axial direction, and has a surface facing the The inner wall ring surface of the spring member and the limiting member, a ring groove recessed from the inner wall ring surface and for the C-shaped ring member to abut, and a convex ring segment protruding from the inner wall ring surface , When the driving member is in the first position, the spring member returns to an uncompressed state and the convex ring segment abuts the two pressing members, so that the two pressing members are pressed and positioned on the two of the screwdriver head The driving member is close to the connecting portion of the sleeve member. When the driving member is in the second position, the spring member is compressed and the convex ring segment does not abut against the two pressing members, making the two pressing members The catch can be dragged away from the two clamping slots of the screwdriver head, and the driving part is away from the connecting part of the sleeve part. The sleeve structure capable of preventing the screwdriver head from slipping as described in claim 1, wherein the pressing member is a ball. The sleeve structure capable of preventing the screwdriver head from slipping as described in claim 1, wherein the limiting member has an abutting ring surface for abutting one end of the spring member. In the sleeve structure capable of preventing the screwdriver head from slipping off according to claim 1, wherein the sleeve portion is recessed with a positioning ring groove close to the two accommodating slots and for the limiting member to be positioned against. The sleeve structure capable of preventing the screwdriver head from slipping off as described in claim 1, wherein the C-shaped ring member has a resisting surface for abutting one end of the spring member.

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