A guide device for a hook

By setting a rotating guide, sliding connector and guide rail on the hook, the drive member drives the connector to slide, the extension and retraction of the guide member is realized, and the compact structure is maintained through the self-locking mechanism, the existing technology is solved The problem of large space occupancy between the medium guide device realizes the compact design of the vehicle hood.

CN112848820BActive Publication Date: 2024-12-31CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO LTD +1
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Patent Information

Application Number
CN202110032556.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-11
Publication Date
2024-12-31
Estimated Expiration
2041-01-11

AI Technical Summary

Technical Problem

The existing hook guide device takes up a large space due to rigid connections, which affects the compact design and lightweight design of the vehicle hood.

Method used

A guide device for a hook is designed, wherein the guide member is rotatably arranged on the hook, and through the sliding connection between the connecting member and the guide rail, the driving member drives the connecting member to slide along the guide rail, so as to realize the extension and retraction of the guide member, and through The rotating member and the slider form a self-locking state to ensure that the guide takes up less space when it extends or retracts.

Benefits of technology

It realizes flexible extension and retraction of the guide, takes up a small space and compact structure, solving the problem that the vehicle hood cannot achieve a compact design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses a guide device for a vehicle coupler, comprising a guide member, which is rotatably arranged on the vehicle coupler; a connector, which is rotatably connected to the guide member; a driver, which is arranged on the vehicle coupler, and the power output end of the driver is rotatably connected to the connector; a guide rail, which is arranged on the vehicle coupler and extends along the driving direction of the driver; and the connector is slidably connected to the guide rail; wherein, under the action of the driver, the connector can slide back and forth along the extension direction of the guide rail, and the guide member can be extended or retracted as the connector slides. This solves the technical problem that the existing guide member occupies a large space, which makes it impossible to achieve a compact design of the vehicle hood.
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Description

Technical Field

[0001] The invention belongs to the technical field of vehicle coupling, and in particular relates to a guide device for a vehicle coupler. Background Art

[0002] The coupler is a vehicle component used to achieve the connection between locomotive and vehicle or between vehicles, transmit traction and impact force, and keep a certain distance between vehicles. The coupler is equipped with a guide device to increase the coupling and guiding range of the coupler and improve the coupling performance of the coupler.

[0003] In the prior art, the guide device and the coupler are usually rigidly connected, which causes the guide device to occupy a large space, making it impossible to achieve a compact design for the vehicle hood, and also affects the lightweight design of the vehicle hood. Summary of the invention

[0004] The object of the present invention is to provide a guide device for a vehicle coupler, so as to solve the technical problem in the prior art that the guide device occupies a large space and thus the vehicle hood cannot be designed in a compact manner.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme:

[0006] A guide device for a coupler, comprising:

[0007] A guide member, the guide member being rotatably disposed on the coupler;

[0008] A connecting member, the connecting member being rotatably connected to the guiding member;

[0009] A driving member, wherein the driving member is arranged on the coupler, and a power output end of the driving member is rotatably connected to the connecting member;

[0010] A guide rail, wherein the guide rail is arranged on the coupler, and the guide rail extends along the driving direction of the driving member; and the connecting member is slidably connected to the guide rail;

[0011] Wherein, under the action of the driving member, the connecting member can slide back and forth along the extension direction of the guide rail to achieve the extension or retraction of the guide member.

[0012] Preferably, a first rotating member is provided between the guide member and the coupler, and the guide member is rotatably connected to the coupler via the first rotating member.

[0013] Preferably, the connecting member is provided with,

[0014] a first connecting end, wherein a second rotating member is disposed on the first connecting end, and the connecting member is rotatably connected to the guiding member through the second rotating member;

[0015] A second connecting end, on which a sliding member is rotatably disposed, and the sliding member is slidably disposed in the guide rail;

[0016] a third connecting end, on which a third rotating member is disposed, through which the connecting member is rotatably connected to the power output end of the driving member; and the third connecting end is located between the first connecting end and the second connecting end;

[0017] Wherein, through the connection among the guide member, the driving member, the connecting member, the guide rail and the sliding member, the guide member can form a self-locking state when it is extended into place; when the guide member is retracted into place, the driving member enters a self-locking state.

[0018] Preferably, the connecting member is provided with:

[0019] a first connecting end, wherein a second rotating member is disposed on the first connecting end, and the connecting member is rotatably connected to the guiding member through the second rotating member;

[0020] A second connecting end, wherein a sliding member is disposed on the second connecting end, the sliding member is rotatably connected to the power output end of the driving member, and the connecting member is slidably disposed in the guide rail through the sliding member;

[0021] Wherein, through the connection among the guide member, the driving member, the connecting member, the guide rail and the sliding member, the guide member can form a self-locking state when it is extended into place; when the guide member is retracted into place, the driving member enters a self-locking state.

[0022] Preferably, the guide rail comprises:

[0023] A first guide rail portion, wherein the first guide rail portion is an arc-shaped structure;

[0024] A second guide rail portion, wherein the second guide rail portion is a strip-shaped structure, the second guide rail portion is connected to the first guide rail portion; and an extending direction of the second guide rail portion is adapted to a driving direction of the driving member;

[0025] Wherein, under the action of the driving member, the connecting member can slide from the first guide rail portion to the second guide rail portion to achieve the retraction and locking of the guide member; under the action of the driving member, the connecting member can slide from the second guide rail portion to the first guide rail portion to achieve the extension and locking of the guide member.

[0026] Preferably, it further comprises a bracket, wherein the bracket is arranged on the coupler, and a fourth rotating member is arranged on the bracket, and the driving member is rotatably connected to the bracket through the fourth rotating member.

[0027] Preferably, a protrusion is provided on the guide member, and the protrusion is rotatably connected to the connecting member through the second rotating member.

[0028] Preferably, the sliding member is a roller.

[0029] Preferably, it further comprises an elastic member, one end of which is rotatably connected to the coupler, and the other end of which is rotatably connected to the sliding member; when the driving member fails, the guide member can be prevented from extending or retracting.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are:

[0031] The present invention provides a guide device for a vehicle coupler, wherein a guide member is rotatably arranged on the vehicle coupler, and one end of the guide member is rotatably connected to a connecting member, and one end of the connecting member is slidably arranged in a guide rail, and the connecting member is connected to a driving member, thereby enabling the connecting member to slide back and forth along the guide rail under the action of the driving member, and enabling the guide member to rotate back and forth under the drive of the connecting member, thereby realizing the extension and retraction of the guide member. Thus, by adopting the above structure, when the vehicle is reconnected, the guide member is extended to the working position, that is, the guide member is extended into place under the driving action of the driving member; when the reconnection is completed, the guide member is retracted under the action of the driving member. Thus, the guide member occupies a small space and has a compact structure. Thus, the technical problem in the prior art that the guide member occupies a large space and the vehicle hood cannot be designed compactly is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the guide device for the coupler in the present invention in an extended state;

[0033] Figure 2 It is a schematic diagram of the overall structure of the guide device for the coupler in the present invention in a retracted state;

[0034] Figure 3 This is a schematic diagram of the working principle of the guide device for the hook extending in Example 1 of the present invention;

[0035] Figure 4 This is a schematic diagram of the working principle of the retraction of the guide device for the coupler in Example 1 of the present invention;

[0036] Figure 5 This is a schematic diagram of the working principle of the extension of the guide device for the coupler in Example 2 of the present invention;

[0037] Figure 6 This is a schematic diagram of the working principle of the retraction of the guide device for the coupler in Example 2 of the present invention;

[0038] Figure 7 The working principle of the elastic member provided for the guide device for the coupler in the second embodiment of the present invention Figure 1 ;

[0039] Figure 8 The working principle of the elastic member provided for the guide device for the coupler in the second embodiment of the present invention Figure 2 ;

[0040] In the above figures: 1. Hook; 2. Guide member; 21. Protrusion; 3. Connecting member; 31. First connecting end; 32. Second connecting end; 33. Third connecting end; 4. Driving member; 5. Guide rail; 51. First guide rail portion; 52. Second guide rail portion; 6. Sliding member; 7. First rotating member; 8. Second rotating member; 9. Third rotating member; 10. Bracket; 11. Fourth rotating member; 12. Elastic member. DETAILED DESCRIPTION

[0041] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0042] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "back", "first", "second", "third", "fourth", etc., indicating directions or positional relationships, are based on the positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of this application, "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or a connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The technical solution in the embodiment of the present application solves the technical problem in the prior art that the guide device for the coupler occupies a large space, which makes it impossible to realize a compact design of the vehicle hood. The overall idea is as follows:

[0045] The present invention provides a guide device for a vehicle coupler, wherein a guide member is rotatably arranged on the vehicle coupler, and one end of the guide member is rotatably connected to a connecting member, and one end of the connecting member is slidably arranged in a guide rail, and the connecting member is connected to a driving member, thereby enabling the connecting member to slide back and forth along the guide rail under the action of the driving member, and enabling the guide member to rotate back and forth under the drive of the connecting member, thereby realizing the extension and retraction of the guide member. Thus, by adopting the above structure, when the vehicle is reconnected, the guide member is extended to the working position, that is, the guide member is extended into place under the driving action of the driving member; when the reconnection is completed, the guide member is retracted under the action of the driving member. Thus, the guide member occupies a small space and has a compact structure. Thus, the technical problem in the prior art that the guide member occupies a large space and the vehicle hood cannot be designed compactly is solved.

[0046] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] A guide device for a coupler, comprising:

[0048] A guide member 2, wherein the guide member 2 is rotatably disposed on the coupler 1;

[0049] A connecting member 3, wherein the connecting member 3 is rotatably connected to the guiding member 2;

[0050] A driving member 4, wherein the driving member 4 is disposed on the coupler 1, and a power output end of the driving member 4 is rotatably connected to the connecting member 3;

[0051] A guide rail 5, wherein the guide rail 5 is arranged on the coupler 1, and the guide rail 5 extends along the driving direction of the driving member 4; and the connecting member 3 is slidably connected to the guide rail 5;

[0052] Wherein, under the action of the driving member 4 , the connecting member 3 can slide back and forth along the extending direction of the guide rail 5 , so as to realize the extension and retraction of the guiding member 2 .

[0053] like Figure 1 As shown, the guide member 2 is used to increase the coupling guide range of the coupler 1 and improve the connection performance of the coupler 1. Specifically, the guide member 2 is an arc-shaped rod-shaped structure, one end of which is rotatably connected to the coupler 1, and the other end of which is rotatably connected to the connecting member 3. Further, a first rotating member 7 is provided between the guide member 2 and the coupler 1, and the guide member 2 is rotatably provided on the coupler 1 through the first rotating member 7. In this embodiment, the first rotating member 7 is preferably a rotating shaft structure.

[0054] The connecting member 3 is arranged between the guiding member 2 and the driving member 4, so that the driving member 4 can drive the guiding member 2 to move by driving the connecting member 3, so that the driving member 4 can more effectively apply the driving force to the guiding member 2, so that the guiding member 2 can be quickly and accurately rotated to the desired position.

[0055] Specifically, one end of the connecting member 3 is rotatably connected to the guide member 2; further, in order to make the transmission effect between the guide member 2 and the connecting member 3 better, a protrusion 21 is provided on the guide member 2, and the protrusion 21 is rotatably connected to the connecting member 3, so that the connecting member 3 and the guide member 2 are rotatably connected. The other end of the connecting member 3 is slidably arranged in the guide rail 5, and the power output end of the driving member 4 is rotatably connected to the connecting member 3, so that under the action of the driving member 4, the connecting member 3 can slide back and forth along the extension direction of the guide rail 5, thereby driving the guide member 2 to extend and retract.

[0056] More specifically, the connecting member 3 includes a first connecting end 31, a second connecting end 32 and a third connecting end 33. A second rotating member 8 is provided on the first connecting end 31, through which the first connecting end 31 is rotatably connected to the guide member 2; a sliding member 6 is rotatably provided on the second connecting end 32. In this embodiment, the sliding member 6 is preferably a roller structure. The structure of the sliding member 6 cooperates with the structure of the guide rail 5, so that the second connecting end 32 is slidably connected to the guide rail 5, and under the action of the driving member 4, the connecting member 3 can slide back and forth along the extension direction of the guide rail 5. At the same time, a third rotating member 9 is provided on the third connecting end 33, through which the third connecting end 33 is rotatably connected to the power output end of the driving member 4; and the third connecting end 33 is provided between the first connecting end 31 and the second connecting end 32. Among them, through the connection between the guiding member, the driving member, the connecting member, the guide rail, and the sliding member, the guiding member can form a self-locking state when it is extended into place; when the guiding member is retracted into place, the driving member enters a self-locking state.

[0057] The guide rail 5 is used to guide the guide member 2. Specifically, the guide rail 5 includes a first guide rail portion 51 and a second guide rail portion 52.

[0058] The first guide rail portion 51 is an arc-shaped structure; the second guide rail portion 52 is a strip-shaped structure, and the second guide rail portion 52 is connected to the first guide rail portion 51; and the extension direction of the second guide rail portion 52 is adapted to the driving direction of the driving member 4. Since the sliding member 6 is slidably arranged in the guide rail 5, under the action of the sliding member 6, the connecting member 3 can slide along the extension direction of the guide rail 5, thereby indirectly guiding the rotation of the guide member 2, so that the guide member 2 can be moved to the corresponding position more accurately. Specifically, under the action of the driving member 4, the connecting member 3 can slide from the first guide rail portion 51 to the second guide rail portion 52 to achieve the retraction of the guide member 2; under the action of the driving member 4, the connecting member 3 can slide from the second guide rail portion 52 to the first guide rail portion 51 to achieve the extension of the guide member 2. At the same time, when the driving member 4 is extended to the maximum stroke position, the guide member 2 is just extended to the position required for work. At this time, the guide member 2 in the working state is subjected to force and tends to rotate clockwise. At this time, the positional relationship between the guide member 2, the connecting member 3, the guide rail 5, and the sliding member 6 determines that the guide drive member can only be extended, and the guide drive member has been extended to the maximum stroke position, so a locked state is formed, ensuring that the guide member 2 is in the extended position.

[0059] The driving member 4 is used to drive the connecting member 3 to rotate back and forth. When the vehicle is reconnected, the guiding member 2 is extended to the right position under the action of the driving member 4. After the reconnection is completed, the guiding member 2 is retracted under the action of the driving member 4. The driving member 4 can be an automatic component such as a cylinder, an electric cylinder, a motor, etc., or it can be manually driven. In this embodiment, the driving member 4 is preferably a cylinder.

[0060] Specifically, the driving member 4 is arranged on the coupler 1, and the driving member 4 is rotatably connected to the coupler 1. Further, a bracket 10 is arranged on the coupler 1, and a fourth rotating member 11 is arranged on the bracket 10, and the driving member 4 is rotatably connected to the bracket 10 through the fourth rotating member 11, so that the driving member 4 is rotatably arranged on the coupler 1. Further, the driving member 4 is connected to the connecting member 3, and under the action of the driving member 4, the connecting member 3 can drive the guide member 2 to rotate, thereby realizing the extension and retraction of the guide member 2. By adopting this structure, the guide member 2 is in a self-locking state when it is in the extended or retracted position, so that the guide member 2 is stably in the required position. It can be seen from the above that when the guide member 2 is in the retracted state, the occupied space is significantly reduced, making the structure compact. Thereby solving the technical problem in the prior art that the guide member 2 occupies a large space and the vehicle hood cannot be designed compactly.

[0061] Furthermore, an elastic member (not shown in the figure) is provided, one end of which is rotatably connected to the coupler, and the other end of which is rotatably connected to the sliding member. When the driving member fails, the guide member can be prevented from extending or retracting. By providing this elastic member, the guide member 3 can be stably located in the corresponding position even when the driving member 4 fails.

[0062] In order to explain this application more clearly, Figures 1 to 6 The working principle of the present invention is further described by taking the embodiment shown as an example:

[0063] When the vehicle is reconnected, the power output end of the driving member 4 moves toward the direction of the coupling 1, thereby driving the connecting member 3 to slide along the guide rail 5. Since the guide member 2 is connected to the connecting member 3, the guide member 2 is extended toward the direction of the coupling 1 under the driving action of the connecting member 3; when the sliding member 6 slides to the end of the first guide rail portion 51, the guide member 2 is just extended to the right position. At this time, the guide member 2 is in the working state and has a clockwise rotation tendency. At this time, the positional relationship between the guide member 2, the connecting member 3, the guide rail 5, and the sliding member 6 determines that the guide driving member can only be extended, and the guide driving member has been extended to the maximum stroke position, so a locked state is formed, ensuring that the guide member 2 is in the extended position. Thereby, the guide member 2 is stably in the required position and can play an effective guiding role for the coupling 1. After the reconnection is completed, if the extended guide member 2 is to be retracted, the guide member 2 must first be rotated counterclockwise by a certain angle, and then the guide member 2 is rotated clockwise under the action of the driving member 4. In other words, when the guide member 2 retracts, the power output end of the driving member 4 moves in the direction of unhooking the coupler 1, thereby driving the connecting member 3 to slide along the guide rail 5. Since the guide member 2 is connected to the connecting member 3, the guide member 2 is driven by the connecting member 3 to first rotate counterclockwise by a certain angle, and then rotate clockwise to retract. When the guide member 2 retracts, it is necessary to first rotate counterclockwise by a certain angle to prevent the guide member 2 from malfunctioning during operation. When the sliding member 6 slides to the end of the second guide rail portion 52, the guide member 2 retracts into place. At this time, the driving member self-locks, thereby preventing the movement of the guide member 2, so that the guide member 2 is stably in the desired position. As a result, the guide member 2 occupies a small space, which solves the technical problem in the prior art that the guide member 2 occupies a large space and the vehicle hood cannot be designed in a compact manner.

[0064] Example 2

[0065] The difference between this embodiment and embodiment 1 is that the connecting member 3 includes a first connecting end 31 and a second connecting end 32. Specifically, in order to reduce the movement resistance of the connecting member 3, the connecting member 3 can be provided with only the first connecting end 31 and the second connecting end 32. The first connecting end 31 is rotatably connected to the guide member 2 through the second rotating member 8; the second connecting end 32 is provided with a third rotating member 9, and the second connecting end 32 is rotatably connected to the power output end of the driving member 4 through the third rotating member 9. At the same time, a sliding member 6 is also provided at the second connecting end 32, that is, the driving member 4 is rotatably connected to the junction of the second connecting end 32 and the sliding member 6. Among them, through the connection between the guide member, the driving member, the connecting member, the guide rail, and the sliding member, the guide member can be in a self-locking state when it is extended into place; when the guide member is retracted into place, the driving member enters a self-locking state. As a result, under the action of the driving member 4, the connecting member 3 can slide back and forth along the extension direction of the guide rail 5 more effortlessly.

[0066] Further, if Figure 7 and Figure 8 As shown, an elastic member is also provided, one end of which is rotatably connected to the coupler, and the other end of which is rotatably connected to the sliding member. When the driving member fails, the guide member can be prevented from extending or retracting. By providing this elastic member, the guide member 3 can be stably located in the corresponding position even when the driving member 4 fails.

[0067] Based on the above, the present invention has at least the following technical effects and advantages:

[0068] 1. The present invention provides a guide device for a vehicle coupler, wherein a guide member 2 is rotatably arranged on a vehicle coupler 1, and one end of the guide member 2 is rotatably connected to a connecting member 3, and one end of the connecting member 3 is slidably arranged in a guide rail 5, and the connecting member 3 is connected to a driving member 4, so that the connecting member 3 can slide back and forth along the guide rail 5 under the action of the driving member 4, and the guide member 2 can rotate back and forth under the drive of the connecting member 3, so as to realize the extension and retraction of the guide member 2. Thus, by adopting the above structure, when the vehicle is reconnected, the guide member 2 is extended to the working position, that is, the guide member 2 is extended to the position under the driving action of the driving member 4; when the reconnection is completed, the guide member 2 is retracted under the action of the driving member 4. Thus, the guide member 2 occupies a small space and has a compact structure. Thus, the technical problem that the guide member 2 occupies a large space in the prior art and the vehicle hood cannot be designed compactly is solved.

[0069] 2. The present invention provides a guide rail 5 and a sliding member 6 on the connecting member 3, so that the connecting member 3 slides back and forth along the guide rail 5, thereby guiding the rotation of the guide member 2, so that the guide member 2 can be rotated to the desired position more accurately.

[0070] 3. In the present invention, after the guide member 2 is extended into place, the positional relationship between the guide member 2, the connecting member, the guide rail, and the driving member can form a self-locking structure to prevent the guide member from retracting. After the guide member is retracted into place, the driving member can self-lock to prevent the guide member from extending.

Claims

1. A guide device for a coupler, characterized in that: include, A guide member, the guide member being rotatably disposed on the coupler; A connecting member, the connecting member being rotatably connected to the guiding member; A driving member, wherein the driving member is arranged on the coupler, and a power output end of the driving member is rotatably connected to the connecting member; A guide rail, wherein the guide rail is arranged on the coupler, and the guide rail extends along the driving direction of the driving member; and the connecting member is slidably connected to the guide rail; A bracket, wherein the bracket is arranged on the coupler and a fourth rotating member is arranged on the bracket, and the driving member is rotatably connected to the bracket through the fourth rotating member; Wherein, under the action of the driving member, the connecting member can slide back and forth along the extension direction of the guide rail to achieve the extension or retraction of the guide member; The guide rail comprises: A first guide rail portion, wherein the first guide rail portion is an arc-shaped structure; A second guide rail portion, wherein the second guide rail portion is a strip-shaped structure, the second guide rail portion is connected to the first guide rail portion; and an extending direction of the second guide rail portion is adapted to a driving direction of the driving member; Wherein, under the action of the driving member, the connecting member can slide from the first guide rail portion to the second guide rail portion to achieve the retraction and locking of the guide member; under the action of the driving member, the connecting member can slide from the second guide rail portion to the first guide rail portion to achieve the extension and locking of the guide member.

2. The guide device for a coupler according to claim 1, characterized in that: A first rotating member is arranged between the guide member and the coupler, and the guide member is rotatably connected to the coupler through the first rotating member.

3. The guide device for a coupler according to claim 2, characterized in that: The connecting member is provided with, a first connecting end, wherein a second rotating member is disposed on the first connecting end, and the connecting member is rotatably connected to the guiding member through the second rotating member; A second connecting end, on which a sliding member is rotatably disposed, and the sliding member is slidably disposed in the guide rail; a third connecting end, on which a third rotating member is disposed, through which the connecting member is rotatably connected to the power output end of the driving member; and the third connecting end is located between the first connecting end and the second connecting end; Wherein, through the connection among the guide member, the driving member, the connecting member, the guide rail and the sliding member, the guide member can form a self-locking state when it is extended into place; when the guide member is retracted into place, the driving member enters a self-locking state.

4. The guide device for a coupler according to claim 2, characterized in that: The connecting piece is provided with: a first connecting end, wherein a second rotating member is disposed on the first connecting end, and the connecting member is rotatably connected to the guiding member through the second rotating member; A second connecting end, wherein a sliding member is disposed on the second connecting end, the sliding member is rotatably connected to the power output end of the driving member, and the connecting member is slidably disposed in the guide rail through the sliding member; Wherein, through the connection among the guide member, the driving member, the connecting member, the guide rail and the sliding member, the guide member can form a self-locking state when it is extended into place; when the guide member is retracted into place, the driving member enters a self-locking state.

5. The guide device for a coupler according to claim 3, characterized in that: The guide member is provided with a protrusion, and the protrusion is rotatably connected to the connecting member through the second rotating member.

6. The guide device for a coupler according to claim 3 or 4, characterized in that: The sliding member is a roller.

7. The guide device for a coupler according to claim 3 or 4, characterized in that: It also includes an elastic member, one end of which is rotatably connected to the coupler, and the other end of which is rotatably connected to the sliding member; when the driving member fails, the guiding member can be prevented from extending or retracting.

Citation Information

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