CN114473953A

CN114473953A - Pin pulling tool for plug pin

Info

Publication number: CN114473953A
Application number: CN202210175133.7A
Authority: CN
Inventors: 王文龙; 梁善凱; 林士楠
Original assignee: KUKA Robotics Guangdong Co Ltd
Current assignee: KUKA Robotics Guangdong Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-05-13
Anticipated expiration: 2042-02-24
Also published as: CN114473953B

Abstract

The invention discloses a pin pulling tool for a plug pin, which comprises: the pushing device comprises a first structural part, a second structural part, an elastic connecting piece and a pushing piece; the first structural member includes a clamp for connection with the plug pin; the second structural member is connected with the first structural member in a relatively movable manner in the axial direction of the plug pin; the elastic connecting piece is respectively connected with the first structural piece and the second structural piece; the pushing piece is connected with the elastic connecting piece and can move relative to the first structural piece and the second structural piece; when the first structural member is at a first position relative to the second structural member, the elastic connecting piece is in a free state, when the first structural member is at a second position relative to the second structural member, the elastic connecting piece drives the pushing piece to move so as to unlock the plug pin, and when the first structural member is at a third position relative to the second structural member, the first structural member drives the plug pin to be pulled out through the clamp. According to the pin pulling tool for the plug pin, the plug pin can be pulled out in a time-saving and labor-saving manner under the condition that the plug pin is not easy to pull out.

Description

Pin pulling tool for plug pin

Technical Field

The invention relates to the technical field of plug pins, in particular to a pin pulling tool for a plug pin.

Background

In the related art, the fast plug pin is widely applied to various occasions, and in the application occasions with narrow space, the plug pin is small in appearance and inconvenient to operate manually. And the condition that the pin is blocked or difficult to pull out easily appears when pulling out, and the pin pulling tool on the market at present can only be directed against ordinary cylindrical positioning pin mostly, does not have suitable instrument to special bolt.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a pin pulling tool for a plug pin, which can pull out the plug pin in a time-saving and labor-saving manner under the condition that the plug pin is difficult to pull out.

The pin pulling tool for a plug pin according to the present invention comprises: a first structure, the first structure comprising: a clamp for connection with the plug pin; the second structural member is movably connected with the first structural member relatively in the axial direction of the plug pin; the elastic connecting piece is respectively connected with the first structural piece and the second structural piece; a pusher connected to the resilient connector and movable relative to the first and second structures; the first structural member is movable among a first position, a second position and a third position relative to the second structural member, when the first structural member is at the first position relative to the second structural member, the elastic connector is in a free state, when the first structural member is at the second position relative to the second structural member, the elastic connector drives the pushing piece to move so as to unlock the plug pin, and when the first structural member is at the third position relative to the second structural member, the first structural member drives the plug pin to be pulled out through the clamp.

According to the pin pulling tool for the plug pin, the plug pin can be pulled out in a time-saving and labor-saving manner under the condition that the plug pin is not easy to pull out, so that the labor is saved, the efficiency is improved, and the cost is reduced.

In some embodiments, the elastic connector comprises: the first elastic piece is connected with the first structural piece at one end and is connected with the pushing piece at the other end, and the second elastic piece is connected with the second structural piece at one end and is connected with the pushing piece at the other end.

In some embodiments, the first elastic member and the second elastic member are both springs, and the elastic coefficient of the first elastic member is smaller than the elastic coefficient of the return spring of the plug pin and smaller than the elastic coefficient of the second elastic member.

In some embodiments, the second structural member comprises: the guide rod, first elastic component and second elastic component all overlap and establish on the guide rod.

In some embodiments, the guide rod has a first channel extending along an axis on an inner side thereof, the pusher has one end movably disposed in the first channel, one of the guide rod and the pusher has a first guide groove formed thereon, the first guide groove extending along the axis, and the other has a first guide post formed thereon, the first guide post extending in a radial direction of the guide rod, and the first guide post movably fits in the first guide groove.

In some embodiments, the other end of the pusher is formed with a pressing piece located outside the first channel, the pressing piece being adapted to push an unlocking button of the plug pin to unlock the plug pin.

In some embodiments, an outer contour of the jig is formed in a columnar shape, and the second structural member includes: the sleeve, the sleeve has the open chamber that holds of one end, anchor clamps are movably located hold the intracavity and be located telescopic open mouth place one side, elastic connection spare follows telescopic axis extends and both ends respectively with the sleeve with anchor clamps link to each other.

In some embodiments, when the first structural member is in the first position relative to the second structural member, an end of the clamp away from the elastic connector extends out of the open opening, when the first structural member is in the second position relative to the second structural member, an end of the clamp is substantially flush with an end of the sleeve where the open opening is located, and when the first structural member is in the third position relative to the second structural member, an end of the clamp is located in the receiving cavity.

In some embodiments, a second guide groove penetrating the sleeve is formed on a peripheral wall of the sleeve, and the first structural member further includes: one end of the first handle is fixed with the clamp, and the other end of the first handle penetrates through the second guide groove and extends out of the accommodating cavity.

In some embodiments, the second structural member further comprises: the second handle is connected with the sleeve and extends outwards along the radial direction of the sleeve, and the second handle and the first handle are arranged oppositely in the axial direction of the sleeve and are positioned on one side of the first handle far away from the plug pin.

In some embodiments, the clamp has a second passage extending through the clamp along the axis, the pusher having one end located within the receiving cavity and another end extending into the second passage.

In some embodiments, the clamp has a clamping cavity communicating with the second channel, an end of the clamping cavity facing the open mouth is open, and the open end of the clamp is formed with a radially inwardly projecting clamping flange adapted to snap into the catch groove of the plug pin.

In some embodiments, the peripheral wall of the clamp is formed with an escape groove radially penetrating the clamp, one end of the escape groove extends to an open end edge penetrating the clamp, and the escape groove is configured to be adapted to be radially inserted into the clamping cavity through the escape groove by the plug pin.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a pin removal tool for a plug pin according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the pin removal tool shown in FIG. 1;

fig. 3 is a side view of the pin removal tool shown in fig. 1.

Reference numerals:

100. a pin pulling tool;

110. a first structural member; 111. a clamp; 1111. a second channel; 1112. a clamping cavity; 1113. clamping the flange; 1114. an avoidance groove; 112 a first handle; 1121. mounting holes;

120. a second structural member; 121. a guide bar; 1211. a first channel; 1212. a first guide groove; 122. a sleeve; 1221. an accommodating chamber; 1222. a second guide groove; 1223. a notch; 123. a second handle; 124. a nut;

130. an elastic connecting member; 131. a first elastic member; 132. a second elastic member;

140. a pusher member; 141. a first guide post; 142. briquetting;

200. inserting and pulling pins;

210. a pin body;

220. a chucking section;

230. an unlock button;

240. a boss;

250. a clamping groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following describes the pin pulling tool 100 of the plug pin 200 according to an embodiment of the present invention with reference to fig. 1 to 3.

First, the pin removal tool 100 of the present embodiment is used to remove the plug pin 200 mounted on the target, the plug pin 200 has a locked state and an unlocked state, the plug pin 200 can be switched between the locked state and the unlocked state, when the plug pin 200 is inserted on the target, the plug pin 200 can be in the locked state, at which time the plug pin 200 is locked in cooperation with the target, the plug pin 200 is not suitable for being removed from the target, and when the plug pin 200 is switched to the unlocked state, there is no locked relationship between the plug pin 200 and the target, and the plug pin 200 is suitable for being removed from the target.

Referring to fig. 2 and 3, the plug pin 200 may include: a pin body 210, a catch 220, an unlock button 230, and a return spring (not shown).

A driving channel is formed in the pin body 210, and a plurality of through holes are formed in the circumferential wall of the pin body 210; the catch 220 is movable between an extended position in which the catch 220 extends at least partially through the aperture and projects beyond the outer surface of the pin body 210, and a retracted position in which the catch 220 is fully within the aperture; the plurality of catches 220 are provided, and the plurality of catches 220 are spaced apart from each other in the circumferential direction of the pin body 210. The plurality of retainers 220 correspond to the plurality of through holes one to one. Alternatively, the catch 220 may be a steel ball.

The unlocking button 230 is arranged on the pin body 210, and the unlocking button 230 is connected with the clamping part 220 and used for driving the clamping part 220 to move from the extending position to the retracting position; the return spring is connected to the unlock button 230 for driving the unlock button 230 to return. Wherein, the catch 220 and the unlocking button 230 are respectively located at the axial (e.g. the up-down direction shown in fig. 1) ends of the pin body 210.

It can be understood that when the retaining portion 220 is located at the extended position, the retaining portion 220 is adapted to cooperate with the locking engagement portion of the target component to lock the plug pin 200, so as to prevent the plug pin 200 from being pulled out, at this time, the plug pin 200 is in the locking state, when the retaining portion 220 is located at the retracted position, the retaining portion 220 is disengaged from the locking engagement portion of the target component, at this time, the plug pin 200 is in the unlocking state, so that the plug pin 200 can be pulled out.

As shown in fig. 2, the pin body 210 of the plug pin 200 is formed in a cylindrical shape extending in the up-down direction, a driving channel is provided in the pin body 210, the driving channel extends along the axis of the pin body 210, a plurality of through holes are formed in the circumferential wall of the lower end of the pin body 210, the through holes extend in the radial direction of the pin body 210 and penetrate through the pin body 210, the retaining parts 220 are formed as steel balls or steel columns, the retaining parts 220 include a plurality of retaining parts 220, the retaining parts 220 correspond to the plurality of through holes one by one, the retaining parts 220 are disposed in the corresponding through holes and are movable in the extending direction of the through holes, the unlocking button 230 is disposed at the top of the pin body 210, the return spring is disposed in the driving channel, the return spring has a force of normally driving the retaining parts 220 to extend out of the through holes to the extended position, the unlocking button 230 is connected to the plurality of retaining parts 220 through a transmission member, for driving the catch 220 to retract into the through hole, and the return spring is also used for pushing the unlocking button 230 to return.

As shown in fig. 1, a pin pulling tool 100 for a plug pin 200 according to an embodiment of the present invention includes: a first structural member 110, a second structural member 120, a resilient connector 130, and a pusher 140.

Specifically, the first structural member 110 includes a jig 111 for connection with the plug pin 200; the second structure member 120 is connected to the first structure member 110 to be relatively movable in an axial direction (for example, an up-down direction shown in fig. 1) of the plug pin 200; the elastic connection member 130 is connected to the first structure member 110 and the second structure member 120, respectively; the pushing member 140 is connected to the elastic connection member 130, and the pushing member 140 is movable relative to the first structural member 110 and the second structural member 120.

The first structural member 110 is movable between a first position, a second position and a third position relative to the second structural member 120, the elastic connector 130 is in a free state when the first structural member 110 is at the first position relative to the second structural member 120, the elastic connector 130 drives the pusher 140 to move to unlock the plug pin 200 when the first structural member 110 is at the second position relative to the second structural member 120, and the first structural member 110 drives the plug pin 200 through the clamp 111 when the first structural member 110 is at the third position relative to the second structural member 120. Thus, the plug pin 200 is pulled out by the cooperation between the first structure 110, the second structure 120, the elastic connection member 130 and the pushing member 140.

Referring to fig. 2, the elastic connection 130 is switchable between a free state, a first elastic state and a second elastic state; the first structural member 110 is movable among a first position, a second position and a third position relative to the second structural member 120, when the first structural member 110 is at the first position relative to the second structural member 120, the elastic connector 130 is in a free state, when the first structural member 110 is moved from the first position to the second position relative to the second structural member 120, the elastic connector 130 is switched from the free state to a first elastic state, and the elastic connector 130 drives the pusher 140 to move so as to push the unlocking button 230 of the plug-and-pull pin 200, thereby enabling the plug-and-pull pin 200 to be in an unlocked state, when the first structural member 110 is moved from the second position to the third position relative to the second structural member 120, the elastic connector 130 is switched to a second elastic state, and the first structural member 110 drives the plug-and-pull pin 200 through the clamp 111.

In a specific operation, when the plug pin 200 is inserted into the target component and needs to be pulled out, the user can use the pulling tool 100 of this embodiment, and before using the pulling tool 100, the elastic connecting member 130 of the pulling tool 100 is in a free state, and the first structural member 110 is in the first position relative to the second structural member 120.

When the pin removal is started, first, the plug pin 200 is held by the jig 111 of the first structure 110.

The pin removal tool 100 is then operated to move the first structure 110 to a second position relative to the second structure 120. Here, it can be understood that, since the first structural member 110 is fixed to the plug pin 200 through the clamp 111, and the plug pin 200 is fixed to the target object, when the pin pulling tool 100 is operated, the first structural member 110 is stationary, the second structural member 120 moves, and in the process, the second structural member 120 pushes the elastic connector 130 to be gradually compressed to the first elastic state through the movement, and the elastic connector 130 drives the pushing member 140 to move, so as to gradually approach the unlocking button 230 of the plug pin 200 first, and then pushes the unlocking button 230 to unlock the plug pin 200.

Next, the pin removing tool 100 is operated to move the first structure 110 to a third position relative to the second structure 120. Here, in the present operation step, since the plug pin 200 needs to be pulled out, that is, the plug pin 200, the clamp 111 and the first structural member 110 need to be gradually separated from the fixing member in the present operation step, in order to realize the relative movement of the first structural member 110 and the second structural member 120, in the present operation step, the second structural member 120 is fixed, for example, the second structural member 120 may be stopped against a fixing member (for example, a target member), and the first structural member 110 moves. In the process of moving the first structural member 110 from the second position to the third position, the first structural member 110 gradually pushes the elastic connector 130 to compress to the second elastic state, and at the same time, the first structural member drives the plug pin 200 to be pulled out of the target component through the clamp 111.

According to the pin pulling tool 100 of the plug pin 200, the plug pin 200 can be pulled out in a time-saving and labor-saving manner under the condition that the plug pin 200 is not easy to pull out, so that the labor is saved, the efficiency is improved, and the cost is reduced.

In one embodiment of the present invention, referring to fig. 2, the elastic connection member 130 includes: a first elastic member 131 and a second elastic member 132, one end of the first elastic member 131 (e.g., the lower end of the first elastic member 131 shown in fig. 2) being connected to the first structural member 110 and the other end (e.g., the upper end of the first elastic member 131 shown in fig. 2) being connected to the pushing member 140, one end of the second elastic member 132 (e.g., the upper end of the second elastic member 132 shown in fig. 2) being connected to the second structural member 120 and the other end (e.g., the lower end of the second elastic member 132 shown in fig. 2) being connected to the pushing member 140. Thus, by providing the elastic connection member 130 as the first elastic member 131 and the second elastic member 132, the movement of the pushing member 140 with respect to the first structural member 110 and the movement of the pushing member 140 with respect to the second structural member 120 can be achieved, respectively.

Specifically, during use of the pin pulling tool 100, before the pin pulling tool 100 is used, the first elastic member 131 and the second elastic member 132 are both in a free state, and the first structural member 110 is in a first position relative to the second structural member 120; firstly, the pin 200 is clamped by the clamp 111, and the pin pulling tool 100 is operated to move the first structural member 110 to a second position relative to the second structural member 120; the second structure 120 pushes the first elastic member 131 to compress by moving, the pushing member 140 moves downward relative to the first structure 110, gradually approaches the unlocking button 230 of the plug pin 200, triggers the unlocking button 230 of the plug pin 200, so that the clamping portion 220 of the plug pin 200 is received in the pin body 210 of the plug pin 200, the plug pin 200 is in an unlocked state, then, the pin pulling tool 100 is continuously operated, the first structure 110 moves to a third position relative to the second structure 120, the second structure 120 is fixed against a target, the plug pin 200, the clamp 111 and the first structure 110 gradually move away from the target, the second elastic member 132 is compressed, the first structure 110 moves upward relative to the second structure 120, and the clamp 111 drives the plug pin 200 to pull the plug pin 200 out of the target.

In one embodiment of the present invention, referring to fig. 2, the first elastic member 131 and the second elastic member 132 are both springs, and the elastic coefficient of the first elastic member 131 is smaller than the elastic coefficient of the return spring of the plug pin 200 than the elastic coefficient of the second elastic member 132. In this way, the relative movement among the first structural member 110, the second structural member 120 and the pushing member 140 is achieved by providing the first elastic member 131, the second elastic member 132 and the return spring having different elastic coefficients.

In a specific operation process, before the pin pulling tool 100 is used, the elastic connecting part 130 of the pin pulling tool 100 is in a free state, when pin pulling is started, the plug pin 200 is firstly clamped by the clamp 111, the clamp 111 is fixed relative to a target piece, then the first elastic part 131 is compressed by moving the second structural part 110, so that the pushing part 140 is contacted with the unlocking button 230 of the plug pin 200, and the first elastic part 131 mainly serves for resetting the first structural part 110 without needing high elastic coefficient; after the pushing member 140 contacts the unlocking button 230 of the plug-pull member, because the elastic coefficient of the second elastic member 132 is greater than that of the return spring, the pushing member 140 compresses the unlocking button 230, so that the plug-pull pin 200 enters an unlocking state, at this time, the second structural member 120 is fixed relative to the target member, the return spring of the plug-pull pin 200 is mainly used for returning the unlocking button 230, and the elastic coefficient is not required to be very high; when the plug pin 200 enters the unlocked state, the jig 111 moves upward relative to the second structural member 120, and the plug pin 200 is pulled out.

In an embodiment of the present invention, referring to fig. 2, the second structural member 120 may further include a guide rod 121, and the first elastic member 131 and the second elastic member 132 are both disposed on the guide rod 121. In this way, the guide rod 121 ensures the stability of the positions of the first elastic element 131 and the second elastic element 132, so that the compression directions of the first elastic element 131 and the second elastic element 132 are consistent, and since the elastic coefficient of the first elastic element 131 is much smaller than that of the second elastic element 132, the first elastic element 131 is compressed first in the process of the movement of the first structural member 110 relative to the second structural member 120, and when the pushing element 140 triggers the unlocking button 230 of the plug pin 200, the second elastic element 132 is compressed again, so as to extract the plug pin 200.

In one embodiment of the present invention, referring to fig. 2, the inner side of the guide rod 121 has a first channel 1211 extending along an axis (e.g., the up-down direction shown in fig. 2), one end of the pusher 140 (e.g., the upper end of the pusher 140 shown in fig. 2) is movably disposed in the first channel 1211, one of the guide rod 121 and the pusher 140 is formed with a first guide groove 1212 extending along the axis and the other is formed with a first guide post 141 extending in a radial direction (e.g., the left-right direction shown in fig. 2) of the guide rod 121, and the first guide post 141 is movably fitted in the first guide groove 1212. That is, the guide rod 121 may be formed with the first guide groove 1212, and the pusher 140 may be formed with the first guide post 141, or the guide rod 121 may be formed with the first guide post 141, and the pusher 140 may be formed with the first guide groove 1212, so that the relative movement of the pusher 140 with respect to the guide rod 121 may be realized.

Referring to fig. 2, the first guide groove 1212 is formed in the guide rod 121 and penetrates through the guide rod 121 along a radial direction of the guide rod 121, the first guide post 141 is formed at one end of the pusher 140, the first guide post 141 extends outward along the radial direction of the guide rod 121, and a radially outer end of the first guide post 141 penetrates through the first guide groove 1212 from inside to outside and extends out of the guide rod 121. It should be noted that, the first guide post 141 and the first guide groove 1212 are mutually matched to realize the relative movement of the guide rod 121 and the pusher 140 in the up-down direction, and meanwhile, the first guide groove 1212 has a limiting effect on the movement of the pusher 140, when the pusher 140 moves upward relative to the guide rod 121, the first guide post 141 gradually moves to the upper end edge of the first guide groove 1212, and when the first guide post 141 abuts against the upper end edge of the first guide groove 1212, the pusher 140 cannot move upward relative to the guide post, and when the pusher 140 moves downward relative to the guide rod 121, the first guide post 141 gradually moves to the lower end edge of the first guide groove 1212, and when the first guide post 141 abuts against the lower end edge of the first guide groove 1212, the pusher 140 cannot move downward relative to the guide post.

Further, one end of the first elastic member 131 (e.g., the upper end of the first elastic member 131 shown in fig. 2) and one end of the second elastic member 132 (e.g., the lower end of the second elastic member 132 shown in fig. 2) are both fixed to the first guide post 141.

In one embodiment of the present invention, referring to fig. 2, the other end of the pushing member 140 (e.g., the lower end of the pushing member 140 as shown in fig. 1) is formed with a pressing piece 142, the pressing piece 142 is located outside the first passage 1211, and the pressing piece 142 is adapted to push the unlocking button 230 of the plug pin 200 to unlock the plug pin 200. It should be noted that the cross-sectional area of the pressing block 142 in the horizontal plane is larger than that of the pushing member 140 in the horizontal plane, so that the accuracy in the operation process can be reduced and the efficiency can be improved.

It should be noted that, during the installation of the plug pin 200, a defective product may occur inevitably, or the plug pin 200 may be skewed due to pressing during the installation, and if the pressing block 142 is not provided, the pushing member 140 may not be able to trigger the unlocking button 230 due to the skew of the plug pin 200. The pressing block 142 is provided to increase the area of the lower end surface of the pushing member 140, thereby preventing the above phenomenon.

In an embodiment of the present invention, referring to fig. 1, the outer contour of the clamp 111 is formed in a cylindrical shape, the second structural member 120 may include a sleeve 122, the sleeve 122 has a receiving cavity 1221 with one end open, the clamp 111 is movably disposed in the receiving cavity 1221 and located at one side of the opening of the sleeve 122, and the elastic connecting member 130 extends along an axis of the sleeve 122 and has two ends connected to the sleeve 122 and the clamp 111, respectively. In this way, relative movement between the clamp 111 and the sleeve 122 is achieved by the resilient connection 130.

Specifically, referring to fig. 1, a through hole penetrating through the sleeve 122 is formed at a central position of an upper end surface of the sleeve 122, a diameter of the through hole matches a diameter of the guide rod 121, a thread is formed on an upper end of the guide rod 121, a portion of the guide rod 121 having the thread extends out of the sleeve 122, and the guide rod 121 is fixed to the sleeve 122 by a nut 124 matching the thread of the upper end of the guide rod 121.

In an embodiment of the present invention, referring to fig. 2, when the first structural element 110 is in the first position relative to the second structural element 120, an end of the clamp 111 away from the elastic connection element 130 (e.g., a lower end of the clamp 111 shown in fig. 2) protrudes out of the open opening, when the first structural element 110 is in the second position relative to the second structural element 120, the end of the clamp 111 is substantially flush with an end of the sleeve 122 where the open opening is located (e.g., a lower end of the clamp 111 shown in fig. 2), and when the first structural element 110 is in the third position relative to the second structural element 120, the end of the clamp 111 is located in the accommodating cavity 1221.

When the pin pulling tool 100 is in the initial state, one end of the clamp 111 away from the elastic connection member 130 is located outside the accommodating cavity 1221, that is, an end surface of one end of the clamp 111 away from the elastic connection member 130 exceeds an end surface of one end of the sleeve 122 where the opening is located, when the pushing member 140 triggers the unlocking button 230 of the pin pulling tool 200, one end of the clamp 111 is substantially flush with one end of the sleeve 122 where the opening is located, and when one end of the sleeve 122 where the opening is located abuts against the target, the pin pulling tool pulls the pin pulling tool 200 out of the target, and at this time, the clamp 111 is located in the accommodating cavity 1221 of the sleeve 122.

In an embodiment of the present invention, referring to fig. 2, the sleeve 122 is formed with a second guide slot 1222 penetrating the sleeve 122 on a peripheral wall thereof, the first structural member 110 may further include a first handle 112, one end of the first handle 112 (for example, an end of the first handle 112 facing the clamp 111 shown in fig. 2) is fixed with the clamp 111, and the other end (for example, an end of the first handle 112 facing away from the clamp 111 shown in fig. 2) passes through the second guide slot 1222 and protrudes out of the accommodating cavity 1221. Thus, the first handle 112 moves in the second guide slot 1222 to move the clamp 111 in the sleeve 122 along the axial direction of the sleeve 122 (e.g., up and down direction as shown in fig. 1).

With reference to fig. 2, the second guide slot 1222 extends along the axial direction of the sleeve 122 (e.g., the up-down direction shown in fig. 1), the second guide slot 1222 also has a limiting function for the first handle 112 and the clamp 111, when the first structural member 110 moves upward relative to the second structural member 120, the first handle 112 gradually approaches the upper end edge of the second guide slot 1222, and when the first handle 112 abuts against the upper end edge of the second guide slot 1222, the first structural member 110 can not move upward relative to the second structural member 120; when the first structure 110 moves downward relative to the second structure 120, the first handle 112 gradually approaches the lower edge of the second guide slot 1222, and when the first handle 112 abuts the upper edge of the second guide slot 1222, the first structure 110 can not move downward relative to the second structure 120 any more.

Further, the first handle 112 is formed in a cylindrical shape, two first handles 112 are arranged on the first handle 112, and are symmetrically arranged on the side circumferential surface of the clamp 111 along the radial direction of the clamp 111, the first handle 112 is connected with the clamp 111 through threads, threads are formed on one end of the first handle 112 close to the clamp 111, threaded holes are formed in corresponding positions of the clamp 111, a mounting hole 1121 is further formed in the first handle 112, and the axis of the mounting hole 1121 is perpendicular to the length extension direction of the first handle 112.

In one embodiment of the present invention, referring to fig. 1, the second structural member 120 may further include a second handle 123, the second handle 123 is connected to the sleeve 122 and extends outward in a radial direction of the sleeve 122, and the second handle 123 is opposite to the first handle 112 in an axial direction of the sleeve 122 and is located on a side of the first handle 112 away from the plug pin 200. In this way, the operator can exert a force better by using the second handle 123 as a fulcrum for the force during the operation.

Specifically, during a specific operation process, an operator only needs to clamp the first handle 112 and the second handle 123, which are oppositely arranged in the up-down direction, with two hands, and simultaneously exert a force to move the first handle 112 towards the second handle 123, so as to realize the extraction of the plug-pull pin 200.

In one embodiment of the present invention, referring to fig. 1, the clamp 111 has a second channel 1111 passing through the clamp 111 along the axis (e.g., up and down direction as shown in fig. 2), one end of the pusher 140 (e.g., the upper end of the pusher 140 as shown in fig. 2) is located in the receiving chamber 1221 and the other end (e.g., the lower end of the pusher 140 as shown in fig. 2) extends into the second channel 1111. In this way, the pusher 140 is allowed to move up and down relative to the jig 111, and the pusher 140 contacts the unlock button 230 of the plug pin 200 through the second channel 1111, thereby achieving the transition of the plug pin 200 from the locked state to the unlocked state.

In one embodiment of the present invention, referring to fig. 1, the clamp 111 has a clamping cavity 1112 communicating with the second channel 1111, an end of the clamping cavity 1112 facing the open opening is opened, the opened end of the clamp 111 is formed with a clamping flange 1113 protruding radially inward, and the clamping flange 1113 is adapted to be snapped into the catching groove 250 of the plug and pull pin 200. Thus, the jig 111 can be easily engaged with the plug pin 200, and the plug pin 200 can be pulled out.

It should be noted that, two bosses 240 protruding outward in the radial direction of the pin body 210 are formed on the peripheral side surface of the pin body 210 of the plug pin 200, the two bosses 240 are arranged at intervals in the up-down direction, and a slot 250 is defined between the two bosses 240. The clamping flange 1113 of the clamp 111 is clamped into the clamping groove 250 of the plug pin 200, so that the relative movement of the clamp 111 and the plug pin 200 in the plug pin 200 extraction direction (for example, the up-down direction shown in fig. 1) can be well limited, and the movement of the clamp 111 can drive the movement of the plug pin 200, so as to extract the plug pin 200.

In one embodiment of the present invention, referring to fig. 2, an avoiding groove 1114 is formed on the peripheral wall of the clamp 111 to penetrate through the clamp 111 in a radial direction, one end of the avoiding groove 1114 extends to the open end edge of the penetrating clamp 111, and the avoiding groove 1114 is configured to be suitable for being inserted into the clamping cavity 1112 by the plug pin 200 through the avoiding groove 1114 in the radial direction. Thus, the gripping flange 1113 of the gripper 111 snaps into the notch 250 of the plug pin 200 by avoiding the groove 1114, in preparation for the pin removal tool 100 to remove the plug pin 200.

Further, a notch 1223 is formed in the peripheral wall of the sleeve 122, and the notch 1223 corresponds to the avoiding groove 1114, so that the plug pin 200 is inserted into the holding cavity 1112 of the jig 111 through the notch 1223 of the sleeve 122 and the avoiding groove 1114 of the jig 111, in preparation for the plug pin remover 100 to extract the plug pin 200.

A pin removal tool 100 for a plug pin 200 according to one embodiment of the present invention will now be described with reference to fig. 1-3.

In a first embodiment, a pin pulling tool 100 according to the present invention may include: a first structural member 110, a second structural member 120, a resilient connector 130, and a pusher 140.

The first structural member 110 may include: a clamp 111 and a first handle 112 for coupling with the plug pin 200, an outer contour of the clamp 111 being formed in a cylindrical shape; the clamp 111 is provided with a second channel 1111 which penetrates through the clamp 111 along the axis, one end of the pushing piece 140 is positioned in the accommodating cavity 1221, and the other end of the pushing piece extends into the second channel 1111; the clamp 111 has a clamping cavity 1112 communicated with the second channel 1111, one end of the clamping cavity 1112 facing the open opening is opened, the open end of the clamp 111 is formed with a clamping flange 1113 protruding inward in the radial direction, the clamping flange 1113 is suitable for being clamped into the clamping groove 250 of the plug pin 200, an avoiding groove 1114 penetrating through the clamp 111 in the radial direction is formed on the peripheral wall of the clamp 111, one end of the avoiding groove 1114 extends to the end edge of the open end penetrating through the clamp 111, and the avoiding groove 1114 is suitable for being clamped into the clamping cavity 1112 by the plug pin 200 penetrating through the avoiding groove 1114 in the radial direction. One end of the first handle 112 is fixed to the clamp 111 and the other end thereof extends out of the accommodating chamber 1221 through the second guide groove 1222,

the second structure member 120 is movably connected to the first structure member 110 in the axial direction of the plug pin 200, the second structure member 120 may include a guide rod 121, a sleeve 122 and a second handle 123, the first elastic member 131 and the second elastic member 132 are both sleeved on the guide rod 121, and the guide rod 121 has a first channel 1211 extending along the axial direction inside. The sleeve 122 has an accommodating chamber 1221 with an open end, the clamp 111 is movably disposed in the accommodating chamber 1221 and located at one side of the opening of the sleeve 122, a second guide groove 1222 penetrating the sleeve 122 is formed on the peripheral wall of the sleeve 122, and a notch 1223 is formed at a position of the sleeve 122 corresponding to the escape groove 1114 of the clamp 111. A second handle 123 is connected to the sleeve 122 and extends radially outward of the sleeve 122, the second handle 123 being arranged opposite to the first handle 112 in the axial direction of the sleeve 122 and on the side of the first handle 112 remote from the plug pin 200.

The elastic connection member 130 extends along the axis of the sleeve 122 and has two ends connected to the sleeve 122 and the clamp 111, respectively, the elastic connection member 130 may include a first elastic member 131 and a second elastic member 132, one end of the first elastic member 131 is connected to the first structural member 110 and the other end is connected to the pushing member 140, one end of the second elastic member 132 is connected to the second structural member 120 and the other end is connected to the pushing member 140; the first elastic member 131 and the second elastic member 132 are both springs, and the elastic coefficient of the first elastic member 131 is smaller than that of the return spring of the plug pin 200 than that of the second elastic member 132.

The pushing element 140 is connected to the elastic connection element 130 and is movable relative to the first structural element 110 and the second structural element 120, one end of the pushing element 140 is movably disposed in the first channel 1211, the guide rod 121 is formed with a first guide groove 1212 extending along the axis, the pushing element 140 is formed with a first guide post 141 extending along the radial direction of the guide rod 121, the first guide post 141 is movably fitted in the first guide groove 1212, the other end of the pushing element 140 is formed with a pressing block 142, the pressing block 142 is located outside the first channel 1211, and the pressing block 142 is adapted to push the unlocking button 230 of the plug pin 200 to unlock the plug pin 200.

Specifically, as shown in fig. 2, the plug pin 200 is firstly clamped into the clamping cavity 1112 through the notch 1223 of the sleeve 122 and the relief groove 1114 of the clamp 111, the clamping flange 1113 of the clamp 111 is clamped into the clamping groove 250 of the plug pin 200, at this time, the lower end of the clamp 111 is located at the lower side of the lower end of the sleeve 122, the clamp 111 is fixed relative to the target component, and then the first handle 112 and the second handle 123 compress the first elastic member 131, so that the second structural member 120 moves relative to the first structural member 110, the pushing member 140 moves towards the plug pin 200 until the pressing piece 142 at the lower end of the pushing member 140 abuts against the unlocking button 230 of the plug pin 200, the pushing member 140 continues to move the plug pin 200 until the unlocking button 230 of the plug pin 200 is compressed, the unlocking button 230 is triggered, so that the plug pin 200 is switched to the unlocking state, at this time, the lower end of the clamp 111 is substantially flush with the lower end of the sleeve 122, and then the first handle 112 continues to move relative to the second handle 123, the second elastic member 132 is compressed, at this time, the lower end surface of the sleeve 122 abuts against the surface of the target, the sleeve 122 is fixed relative to the target, the clamp 111 continues to move upward relative to the sleeve 122, the plug pin 200 is driven by the clamp 111, the plug pin 200 is pulled out of the target, the whole pin pulling process is finished, then the first handle 112 and the second handle 123 are released, the pin pulling tool 100 returns to the initial state through the first elastic member 131 and the second elastic member 132, and the plug pin 200 is taken out.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pin pulling tool for inserting and pulling a pin, the pin pulling tool comprising:

a first structural member comprising: a clamp for connection with the plug pin;

the second structural member is movably connected with the first structural member relatively in the axial direction of the plug pin;

the elastic connecting piece is respectively connected with the first structural piece and the second structural piece;

a pusher connected to the resilient connector and movable relative to the first and second structures;

the first structural member is movable among a first position, a second position and a third position relative to the second structural member, when the first structural member is at the first position relative to the second structural member, the elastic connector is in a free state, when the first structural member is at the second position relative to the second structural member, the elastic connector drives the pushing piece to move so as to unlock the plug pin, and when the first structural member is at the third position relative to the second structural member, the first structural member drives the plug pin to be pulled out through the clamp.

2. The pin extractor tool of claim 1 wherein said resilient coupling comprises: the first elastic piece is connected with the first structural piece at one end and is connected with the pushing piece at the other end, and the second elastic piece is connected with the second structural piece at one end and is connected with the pushing piece at the other end.

3. The pin extractor tool of claim 2, wherein the first and second elastic members are each a spring, and wherein the first elastic member has a smaller coefficient of elasticity than a return spring of the pin.

4. The pin extractor tool of claim 3 wherein said second structure comprises: the guide rod, first elastic component and second elastic component all overlap and establish on the guide rod.

5. The pin remover of claim 4, wherein the guide has a first channel extending along an axis on an inner side thereof, the pusher has one end movably disposed in the first channel, one of the guide and the pusher has a first guide groove formed thereon extending along the axis and the other has a first guide post formed thereon extending in a radial direction of the guide, the first guide post movably fitted in the first guide groove.

6. The pin remover of claim 5, wherein the other end of the pusher is formed with a press piece located outside the first channel, the press piece being adapted to push an unlocking button of the pin to unlock the pin.

7. The pin extractor tool according to any one of claims 1 to 6, wherein the outer contour of the jig is formed in a cylindrical shape, and the second structure comprises: the sleeve, the sleeve has the open chamber that holds of one end, anchor clamps are movably located hold the intracavity and be located telescopic open mouth place one side, elastic connection spare follows telescopic axis extends and both ends respectively with the sleeve with anchor clamps link to each other.

8. The pin extractor tool of claim 7 wherein an end of said clamp distal from said resilient connector extends out of said open mouth when said first structure is in said first position relative to said second structure, wherein an end of said clamp is substantially flush with an end of said sleeve at which said open mouth is located when said first structure is in said second position relative to said second structure, and wherein an end of said clamp is located in said receiving cavity when said first structure is in said third position relative to said second structure.

9. The pin extractor of claim 7 wherein said sleeve has a second guide slot formed through said sleeve in a peripheral wall thereof, said first structure further comprising: one end of the first handle is fixed with the clamp, and the other end of the first handle penetrates through the second guide groove and extends out of the accommodating cavity.

10. The pin extractor tool of claim 9 wherein said second structure further comprises: the second handle is connected with the sleeve and extends outwards along the radial direction of the sleeve, and the second handle and the first handle are arranged oppositely in the axial direction of the sleeve and are positioned on one side of the first handle far away from the plug pin.

11. The pin remover tool of claim 7, wherein the holder has a second passage extending axially through the holder, and the pusher has one end located in the receiving cavity and another end extending into the second passage.

12. The pin remover of claim 11, wherein the clamp has a clamping cavity in communication with the second channel, the clamping cavity being open at an end thereof facing the open mouth, the open end of the clamp being formed with a radially inwardly projecting clamping flange adapted to snap into the receiving slot of the pin.

13. The pin remover according to claim 12, wherein an escape groove is formed in a circumferential wall of the holder to extend radially through the holder, one end of the escape groove extends to an open end edge of the holder, and the escape groove is configured to be engaged by the pin to pass through the escape groove in a radial direction into the holding chamber.