TWI674952B - Socket - Google Patents

Abstract

The invention relates to a sleeve, which is sleeved on a plugging portion of a driving tool, and at least one positioning portion is recessed in the plugging portion. The sleeve includes a sleeve body, a switching member and at least one Positioning unit. The sleeve body is provided with an axis, a working portion and a set of connecting portions arranged along the extending direction of the axis, and a sleeve space for inserting the insertion portion is provided in the sleeve portion; the switching member can be The at least one positioning unit includes a first accommodating portion, a second accommodating portion, and a positioning member. The first accommodating portion moves along the extending direction of the axis and can be rotatably provided on the sleeve portion with the axis as an axis. The second accommodating part is opened on the switching part and faces the accommodating part. The positioning part is movably received in the first accommodating part. A part of the positioning part is convex. Extend the first container.

Description

Sleeve

The invention relates to a sleeve.

The sleeve is used to cooperate with driving tools (such as wrenches, pneumatic tools, power tools, etc.) to twist screws, bolts, nuts and other fasteners, and it is also commonly used to remove items such as spark plugs. The biggest advantage of the sleeve is that it can be used in deep spaces, and the force can be evenly applied to the fasteners to avoid excessive wear. Therefore, sleeves are widely used in maintenance plants, inspection plants and assembly plants, such as the sleeves disclosed in TWM464273 and TWI366501.

In the combination of the sleeve and the insertion part of the driving tool such as TWM464273, most of them are provided with a retractable positioning bead on the insertion part of the driving tool. Positioned against the recessed hole in the inner wall of the sleeve. However, this method makes the positioning beads or the inner wall of the sleeve extremely prone to abrasion, which causes the sleeve to be unable to be stably connected to the plug-in part and easily loosened and thrown out, causing an unexpected danger. The combination of the sleeve and the plug of the driving tool disclosed in TWI366501 is that the plug of the driving tool is provided with a through hole. After the sleeve is sleeved on the plug, the clamping hole of the sleeve will correspond. Through-holes, at this time, the connecting sleeve and the plug-in part are penetrated through the plug pin. However, this method is more complicated during assembly, and the plug used for connection is easy to lose and difficult to save, often causing users to find alternatives to use, which causes a lot of inconvenience.

Another type of sleeve controls the protrusion of the positioning beads through the switching member, and then controls the positioning beads to be combined with the through holes of the plug-in portion. However, all sockets or tool joints on the market today It can be quickly combined with the plug-in part. The movement of the switch is relatively simple. Most of them are designed to release / lock the plug-in part by moving the switch axially. For example, the patent TW200618951, this design makes it easy to use Unexpected external force collision releases the plug-in part, causing the plug-in part to spray and hurt others, causing danger. Some sleeves are designed for relative rotation of the switching member, such as the patent M367778. This design is also as mentioned above: the switching method is too simple, and the switching member is easily rotated by external force to release the plug part by mistake.

Therefore, it is necessary to provide a novel and progressive sleeve to solve the above problems.

The main purpose of the present invention is to provide a sleeve, which is convenient to operate and allows a user to quickly socket the socket of a driving tool; and the positioning member is designed to be movably limited to the sleeve body, which can effectively prevent the socket The connector will cause abrasion when it is inserted; in addition, the switch is further designed to meet the restriction lines of two different dimensions (axial movement and relative socket rotation) at the same time in order to release the connector and increase misalignment. In this way, the locking safety is greatly improved, so that the plug-in part can be stably coupled to the sleeve.

In order to achieve the above object, the present invention provides a sleeve which is sleeved on a plug portion of a driving tool. At least one positioning portion is recessed in the plug portion. The sleeve includes a sleeve body, a A switching element and at least one positioning unit. The sleeve body is provided with an axis, and a working part and a set of connecting parts arranged along the extending direction of the axis. The working part is used for connecting a fastener, and the sleeve part is provided with a plug for the plug part. A socket space; the switching member can be moved along the extending direction of the axis and can be rotatably provided on the socket portion by the axis; the at least one positioning unit includes a first container portion, a second container portion, and A positioning member, the first accommodating part is arranged on the socket part transversely to the axis, the positioning part is movably accommodated in the first accommodating part, a part of the positioning part protrudes from the first accommodating part, The second accommodating part is opened on the switching part and faces the socket part, and then the second accommodating part forms a relatively high-low drop structure with the inner wall surface of the switching part. When the switching part rotates relative to the socket part, the positioning The pieces are along the circumferential direction of the switching piece When the relative movement is performed, a change occurs in the radial direction of the switching member when the positioning member passes through the second container; wherein, when the switching member is in a locked position, the first container and the first container The two accommodating parts are misaligned with each other, and the switching member forces a part of the positioning member to protrude from the socket space for latching and positioning with the positioning section. When the switching member is in a release position, the first accommodating section and the The second accommodating portion overlaps in a direction transverse to the axis, and a portion of the positioning member may protrude into the second accommodating portion without protruding from the socket space.

1‧‧‧ sleeve body

11‧‧‧ axis

12‧‧‧Work Department

13‧‧‧Socket

131‧‧‧Socket space

132‧‧‧through hole

2‧‧‧Switch

21‧‧‧The first abutment section

22‧‧‧Second abutment section

23‧‧‧ base

24‧‧‧ Cover

25,25A‧‧‧outer wall

26‧‧‧ Recess

27‧‧‧Internal space

3,3A‧‧‧Positioning unit

31‧‧‧First capacity department

32‧‧‧Second Volume

33‧‧‧ Positioning piece

41‧‧‧First Marking Department

42‧‧‧Second Marking Department

51‧‧‧ limit pieces

52‧‧‧Slip structure

53‧‧‧Elastic piece

61‧‧‧First stage

62‧‧‧Second Stage

7‧‧‧Driver

71,71A‧‧‧Socket

72, 72A‧‧‧ Positioning Department

8‧‧‧ Finger

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is an exploded view of FIG. 1.

FIG. 3 is a schematic diagram of assembling to a driving tool.

4 and 5 are schematic diagrams of assembly operations.

FIG. 6 and FIG. 7 are schematic diagrams of assembly operations according to another embodiment of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIG. 1 to FIG. 5, which shows an embodiment of the present invention. The sleeve of the present invention is adapted to be socketed to a plug-in portion 71 of a driving tool 7. A positioning portion 72 includes a sleeve body 1, a switching member 2, and at least one positioning unit 3.

The sleeve body 1 is provided with an axis 11 and a working part 12 and a set of connecting parts 13 arranged along the extending direction of the axis 11. The working part 12 is used to connect a fastener (such as a screw, a bolt, a nut), and The socket portion 13 is provided with a socket space 131 for inserting the socket portion 71. The switching member 2 can be moved along the extending direction of the axis 11 and can be rotatably provided on the sleeve portion 13 by using the axis 11 as an axis.

In this embodiment, in a direction parallel to the axis 11, the ratio of the length of the socket portion 13 to the length of the working portion 12 is between 0.4 and 0.6, so as to meet the appropriate size for hand operation. In addition, the switching member 2 is sleeved on the socket portion 13, and a distance between an outer ring wall 25 of the switching member 2 and the axis 11 is almost equal to a distance between an outer ring wall 25A of the working section 12 and the axis 11. , And can have a more uniform size for easy storage. Of course, it can be changed according to requirements in other use environments, and is not limited to the above.

The at least one positioning unit 3 includes a first accommodating portion 31, a second accommodating portion 32, and a positioning member 33. The first accommodating portion 31 is disposed on the sleeve portion 13 transversely to the axis 11. The positioning member 33 is movably received in the first accommodating portion 31, a portion of the positioning member 33 protrudes from the first accommodating portion 31, and the second accommodating portion 32 is opened in the switching member 2 and faces the socket portion 13, Furthermore, the second container portion 32 and the inner wall surface of the switching member 2 form a relatively high-low drop structure. When the switching member 2 rotates relative to the socket portion 13, the positioning member 33 is carried out along the circumferential direction of the switching member 2. During relative movement, when the positioning member 33 passes through the second accommodating portion 32, a change occurs in the radial direction of the switching member 2. That is, the positioning member 33 slides circumferentially against the inner wall surface of the switching member 2, and when sliding to the second receiving portion 32, a part of the positioning member 33 enters the second receiving portion 32, and When detached from the second container portion 32, the positioning member 33 continues to abut against the inner wall surface of the switching member 2.

In this embodiment, the positioning member 33 is a ball, the first receiving portion 31 and the second receiving portion 32 are respectively through holes, and the diameter of the second receiving portion 32 is smaller than that of the first receiving portion 31. To prevent the positioning member 33 from falling off. It can be understood that, in other embodiments, the second receiving portion may be a groove.

Wherein, when the switching member 2 is located in a locked position, the first accommodating portion 31 and the second accommodating portion 32 are misaligned with each other. In a direction transverse to the axis 11, the switching member 2 will cover the first accommodating portion. The opening of 31 is pressed against the positioning member 33. At this time, the switching member 2 forces a part of the positioning member 33 to protrude from the socket space 131 for positioning against the positioning portion 72 to reach the sleeve sleeve. The purpose of connecting to the plug-in portion 71. When the switching member 2 is in a release position, the first accommodating portion 31 and the second accommodating portion 32 are laterally separated from each other. The direction of the axis 11 overlaps, so once the positioning member 33 is subjected to the force from the socket space 131, a part of the positioning member 33 may protrude into the second receiving portion 32 without protruding from the sleeve. At this time, the positioning portion 72 is detached from the positioning member 33, and the insertion portion 71 can be pulled out of the socket space 131.

Specifically, the switching member 2 needs to satisfy the restriction conditions of the axial direction and the circumferential direction at the same time to move to the release position, that is, the switching member 2 needs to move axially so that the second receiving portion 32 and the first receiving portion 32 An accommodating portion 31 is located outside the same plane, and the switching member 2 needs to be rotated further, so that the second accommodating portion 32 and the first accommodating portion 31 face each other in the radial direction. More specifically, the switching member 2 must be moved to the release position through a specific operation (axial movement and circumferential rotation), which can greatly reduce the possibility of accidentally releasing the plug-in portion 71 by external contact. In other words, this structure configuration makes the sleeve have excellent safety when used.

In this embodiment, the number of the at least one positioning portion 72 is two. The two positioning portions 72 are symmetrically arranged and communicated with each other. The number of the at least one positioning unit 3 is two, and the number of the positioning unit 3 is two. The axis 11 is symmetrically arranged at the center. When the switching member 2 is located at the locked position, the two positioning members 33 are respectively embedded in the two positioning portions 72.

Of course, the aspect of the insertion portion 71 and the positioning portion 72 is not limited to this. By way of example and not limitation, as shown in FIGS. 6 and 7, the plug-in portion 71A is a tool post, and the positioning portion 72A is a recessed groove recessed in the plug-in portion 71A. At this time, the sleeve can still be used through the positioning unit 3A embedded in the insertion portion 71A.

Please refer to FIG. 1 to FIG. 5 again. It is worth mentioning that since the switching member 2 can rotate and move axially with respect to the sleeve body 1, the first accommodation portion can be increased through two different types of action cooperation. The state of 31 being offset from the second accommodating part 32 makes the switching member 2 not be moved to the release position by an unexpected external force, but must be controlled by the user to accurately move to the release position. Therefore, the reliability of preventing the sleeve from being coupled to the plug-in portion 71 can be greatly improved.

Furthermore, the sleeve further includes a stopper 51 which is positioned on the socket 13 (in this embodiment, the stop 51 is a hoop fastened to the socket 13 Buckle), and the outer diameter dimension of the working part 12 is larger than the outer diameter dimension of the socket part 13, and a first step part 61 is formed at the junction of the working part 12 and the socket part 13 at In a direction parallel to the axis 11, the first step portion 61 is spaced a predetermined distance from the stopper 51, and the switching member 2 is limited between the first step portion 61 and the stopper 51. It can be understood that the predetermined distance is greater than the length of the switching element 2 in a direction parallel to the axis 11, so that the switching element 2 can slide along the direction of the axis 11.

Furthermore, a first abutting portion 21 and a second abutting portion 22 are provided on two opposite sides of the switching member 2. The first abutting portion 21 is interposed between the second abutting portion 21 in a direction parallel to the axis 11. Between the abutting portion 22 and the first step portion 61. After the switching member 2 is rotated and the first accommodating portion 31 is arranged linearly with the second accommodating portion 32 in a direction parallel to the axis 11, when the first abutting portion 21 abuts against the first step portion 61 The switching member 2 is located in the release position. When the second abutting portion 22 abuts against the limiting member 51, the switching member 2 is located in the locked position.

It should be added that, in order to let the user know whether the first accommodating portion 31 and the second accommodating portion 32 are on the same line. A first marking portion 41 is provided on the sleeve body 1. The first marking portion 41 corresponds to the first receiving portion 31 in a direction parallel to the axis 11, and a second marking portion 42 is provided on the switching member 2. The second marking portion 42 corresponds to the second receiving portion 32 in a direction parallel to the axis 11. The user only needs to see whether the first marking portion 41 is aligned with the second marking portion 42, which is very convenient.

Preferably, a second step portion 62 is provided on the socket portion 13, a base portion 23 is provided on the switching member 2, and two ends of an elastic member 53 abut against the second step portion 62 and the base portion, respectively. 23, so that the second abutting portion 22 normally has a tendency to approach the stopper 51. In this way, when the external force is removed by the switching member 2, the switching member 2 can be quickly and automatically moved to the locked position, so that the sleeve is quickly coupled to the plug-in portion 71, and can be further rotated at this time. The switching member 2 makes the first accommodating portion 31 and the second accommodating portion 32 not on the same straight line, so as to improve the reliability of preventing loosening. In addition, the elastic member 53 It can provide a certain supporting force to the switching member 2 to make it less susceptible to movement by unexpected external forces to increase stability.

In another preferred embodiment, the switching member 2 is further provided with a covering portion 24 that is laterally connected to the second abutting portion 22. When the second abutting portion 22 abuts against the stopper 51, the The cover 24 covers the stopper 51 in a direction transverse to the axis 11 to prevent external objects from touching the stopper 51. In this way, the structure of the stopper 51 can be ensured to be complete and stable and reliable. It is positioned at the socket portion 13.

Similarly, the first abutting portion 21 is laterally connected to the base portion 23 and covers the second step portion 62, and the first abutting portion 21, the base portion 23 and the socket portion 13 define an internal space 27. The elastic member 53 is received in the inner space 27. In this way, the first abutting portion 21 can protect the structure and deformation of the elastic member 53 from external influences, so as to ensure that the switching member 2 can move smoothly in the axial direction.

In yet another preferred embodiment, the switching member 2 is further provided with a non-slip structure 52 which is pressed against and abutted by a finger 8 to improve the stability of the finger 8 in controlling the switching member 2 and avoid slipping. Still further preferably, at least one recessed portion 26 is provided outside the annular wall 25 of the switching member 2. The second receiving portion 32 is provided at the at least one recessed portion 26. When the finger portion 8 is pressed against the recessed portion 26, it is controlled. When the switching member 2 is used, the design of the recessed portion 26 can increase the contact area between the switching member 2 and the finger 8, thereby improving stability. In this embodiment, the number of the at least one recessed portion 26 is one and is in the form of a ring groove.

It is to be added that two through-holes 132 are continuously provided in the sleeve portion 13. The two through-holes 132 are symmetrically disposed about the axis 11 as a center, so as to further provide different coupling methods. By way of example and not limitation, when the second receiving portion 32 of the through-hole type corresponds to the two through-holes 132, the sleeve and the plug-in portion 71 may be connected through a pin, or the sleeve may be connected with the sleeve. It is also possible to position the barrel on the tool elevator in this way.

In summary, the sleeve of the present invention has a simple structure and simple operation. When the user only needs to rotate and move the switching member to the release position, the sleeve can be quickly connected to the insertion portion of the driving tool. Moreover, as long as the fingers are released, the elastic member can quickly push against the movement of the switching member to displace the first and second accommodating portions, and ensure that Hold in locked position. In addition, the user can further rotate the switching member, so that the first receiving portion is less susceptible to being driven by an external force and aligned with the overlapping second receiving hole to increase the reliability of preventing loosening.

Claims (10)

A sleeve for socketing to a plugging portion of a driving tool. At least one positioning portion is recessed in the plugging portion. The sleeve includes a sleeve body provided with an axis and an extension along the axis. A working part and a set of connecting parts are arranged in the direction, the working part is used for connecting a fastener, and a sleeve space for inserting the plug-in part is provided in the plug-in part; a switching member can be arranged along the axis. The extension part is movable in the extension direction and can be provided on the socket part with the axis as an axis; at least one positioning unit includes a first accommodation part, a second accommodation part, and a positioning part, and the first accommodation part is transverse to the axis. Persistently located in the socket, the positioning member is movably received in the first receiving portion, a portion of the positioning member protrudes from the first receiving portion, and the second receiving portion is opened at the switching member and faces the switching portion. The socket part, and furthermore, the second container part and the inner wall surface of the switching part form a relatively high-low drop structure. When the switching part rotates relative to the socket part, the positioning part moves relative to the circumferential direction of the switching part. When the positioning member passes through the second container, The direction changes; wherein when the switching member is in a locked position, the first accommodating portion and the second accommodating portion are misaligned with each other, and the switching member forces a part of the positioning member to protrude from the socket space for supply. The positioning portions are locked against each other for positioning; when the switching member is located in a release position, the first receiving portion and the second receiving portion overlap in a direction transverse to the axis, and a portion of the positioning member may protrude into the second The accommodating portion does not protrude from the socket space. The sleeve according to claim 1, wherein a first marking portion is provided on the sleeve body, and the first marking portion corresponds to the first receiving portion in a direction parallel to the axis; a first portion is provided on the switching member. Two indicating portions corresponding to the second accommodating portion in a direction parallel to the axis. The sleeve according to claim 1, further comprising a stopper, the stopper is positioned on the socket, and the outer diameter of the working part is larger than the outer diameter of the socket. A first step portion is formed at a junction between the portion and the socket portion; in a direction parallel to the axis, the first step portion and the limit portion The position pieces are separated by a predetermined distance, and the switching piece is limited to be located between the first step portion and the position piece; wherein the predetermined distance is greater than the length of the switching piece in a direction parallel to the axis. The sleeve according to claim 3, wherein a first abutting portion and a second abutting portion are provided on opposite sides of the switching member, and the first abutting portion is interposed between the first and second abutting portions in a direction parallel to the axis Between the two abutting portions and the first step portion; after turning the switching member so that the first accommodating portion is arranged linearly with the second accommodating portion in a direction parallel to the axis, when the first abutting portion and the When the first step portion abuts, the switching element is located at the release position, and when the second abutment portion abuts the stopper, the switching element is located at the locked position. The sleeve according to claim 4, wherein a second step portion is provided at the socket portion, a base portion is provided at the switching member, and two ends of an elastic member respectively abut the second step portion and the The base portion further causes the second abutting portion to have a tendency to approach the stopper normally. The sleeve according to claim 1, wherein at least one concave portion is further provided on an outer ring wall of the switching member, and the second receiving portion is provided in the concave portion. The sleeve according to claim 1, wherein the switching member is further provided with a non-slip structure, and the non-slip structure is pressed against by a finger. The sleeve according to claim 1, wherein the switching member is sleeved on the socket portion, and a distance from an outer ring wall of the switching member to the axis is almost equal to a distance from an outer ring wall of the working portion to the axis. distance. The sleeve according to any one of claims 1 to 8, wherein the number of the at least one positioning portion is two, the second positioning portion is a symmetrically arranged and communicating opening, and the number of the at least one positioning unit is two The two positioning units are symmetrically arranged with the axis as the center. When the switching member is located at the locked position, the two positioning members are respectively embedded in the two positioning portions. The sleeve according to claim 5, wherein a first marking portion is provided on the sleeve body, and the first marking portion corresponds to the first receiving portion in a direction parallel to the axis; a first portion is provided on the switching member. Two marking portions, the second marking portion corresponds to the second container portion in a direction parallel to the axis; The outer ring wall of one of the pieces is provided with at least one concave portion, and the second accommodating portion is provided in the at least one concave portion; the switching member is further provided with a non-slip structure, which is pressed against a finger; Nested on the socket part, the distance from one outer ring wall of the switching member to the axis is almost equal to the distance from one outer ring wall of the working part to the axis; the number of the at least one positioning part is two, and two of the positioning The parts are symmetrically arranged and interconnected openings. The number of the at least one positioning unit is two. The two positioning units are symmetrically arranged with the axis as the center. When the switching member is in the locked position, the two positioning members are The positioning portions are embedded into two respectively; in a direction parallel to the axis, the ratio of the length of the socket portion to the length of the working portion is between 0.4 and 0.6; the first container portion and the second container portion The other is a through hole, and the aperture of the second container is smaller than the aperture of the first container. There are two through holes in the socket. The two through holes are symmetrically arranged with the axis as the center. The limiter is a buckle that is tightly hung on the socket; the switch is another There is a covering portion, which is horizontally connected to the second abutting portion. When the second abutting portion is in abutment with the limiting member, the covering portion covers the limiting member in a direction transverse to the axis; the positioning member Is a ball; the first abutting portion is laterally connected to the base portion and covers the second step portion, and then the first abutting portion, the base portion and the socket portion define an internal space, and the elastic member is accommodated in The internal space; the number of the at least one recess is one and is in the form of a ring groove.