Push-pull mechanism

Abstract

The utility model discloses a push-pull mechanism which comprises a telescopic mechanism, a butt joint mechanism is arranged at the end of the telescopic mechanism, and the butt joint mechanism is driven by the telescopic mechanism to move in the axial direction of the telescopic mechanism. The butt joint mechanism comprises a fixing base detachably arranged at the end of the telescopic mechanism, a connecting shaft is arranged at the end, away from the telescopic mechanism, of the fixing base, and the diameter of the connecting shaft is smaller than that of the fixing base. According to the utility model, the adjusting mechanism is arranged between the end plate and the fixed seat, and the distance between the end plate and the fixed seat is changed after the Y-shaped connecting frame is inserted between the end plate and the fixed seat, so that the end plate and the fixed seat can directly abut against the Y-shaped connecting frame in the push-pull process of the telescopic mechanism, and the Y-shaped connecting frame is driven to move; therefore, when the telescopic mechanism stops moving, the Y-shaped connecting frame and the pushed and pulled object connected with the Y-shaped connecting frame can be timely driven to stop moving, and the push-pull stability can be improved while the insertion convenience of the Y-shaped connecting frame is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of hanging rail charging, in particular to a push-pull mechanism. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The hanging rail charging pile is a new type of charging equipment. It realizes the movement of the charging pile by installing it on a mobile rail, so that the position of the charging pile can be adjusted according to the position of the electric vehicle to achieve efficient charging.

[0004] The current overhead rail charging pile will carry the charging box to the corresponding charging seat through a moving mechanism, and then push the charging box to connect with the charging seat through a push-pull mechanism, and then the moving mechanism equipped with a push-pull mechanism will leave along the track. After the charging box is used up, it will be moved to that place again to connect with the charging box, and the charging box will be pulled back. However, in order to facilitate the connection between the Y-shaped connecting frame on the charging box and the push-pull mechanism, the distance between the end plate and the fixed seat on the push-pull mechanism is often greater than the thickness of the Y-shaped connecting frame, resulting in the charging box having a clearance margin during the pushing and pulling process. After the push-pull mechanism stops, it will collide with surrounding objects due to inertia, affecting the service life of the equipment. Utility Model Content

[0005] The purpose of the present invention is to provide a push-pull mechanism to solve the above-mentioned shortcomings and to improve the push-pull stability.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a push-pull mechanism, including a telescopic mechanism, a docking mechanism is arranged at the end of the telescopic mechanism, and the docking mechanism is driven by the telescopic mechanism to move along the axial direction of the telescopic mechanism; the docking mechanism includes a fixed seat detachably arranged at the end of the telescopic mechanism, a connecting shaft is arranged at one end of the fixed seat away from the telescopic mechanism, and the diameter of the connecting shaft is smaller than the diameter of the fixed seat, the docking mechanism also includes an end plate arranged at one end of the connecting shaft away from the fixed seat, and an adjusting mechanism for adjusting the distance between the end plate and the fixed seat, and the diameter of the end plate is larger than the diameter of the connecting shaft;

[0007] It also includes a Y-shaped connecting frame which is arranged between the end plate and the fixing seat and is located in the moving area of ​​the end plate and the fixing seat. The Y-shaped connecting frame is located at the bottom of the docking mechanism, and the bottom end is connected to the object to be pushed or pulled.

[0008] Furthermore, the adjustment mechanism includes a telescopic block arranged on one side of the end plate close to the connecting shaft and inserted into the connecting shaft, and the connecting shaft and the fixed seat are both provided with a telescopic groove for the telescopic block to move axially along the connecting shaft, and a compression spring is arranged between one end of the telescopic block located in the telescopic groove and the connecting shaft, and when the compression spring is in a natural state, the distance between the end plate and the fixed seat is greater than the thickness of the Y-shaped connecting frame.

[0009] Furthermore, the adjustment mechanism also includes a top block arranged in the telescopic slot and with one end passing through the connecting shaft. The top block is pushed up and down by the Y-shaped connecting frame. A slot adapted to the top block is opened on the telescopic block. The side of the top block in contact with the slot is an inclined surface. When the top block moves closer to the slot, the telescopic block moves closer to the fixed seat.

[0010] Furthermore, a contact mechanism is provided on one side of the fixing seat close to the Y-shaped connecting frame, which is pushed by the telescopic block and contacts the Y-shaped connecting frame;

[0011] The abutment mechanism comprises a rotating rod rotatably arranged on one side of the fixed seat close to the connecting shaft, one end of the rotating rod is inserted into the telescopic groove and is located in the moving area of ​​the telescopic block, and the other end of the rotating rod is rotatably arranged with a first guide roller;

[0012] When the compression spring is in a natural state, the telescopic block does not contact the rotating rod, and when the Y-shaped connecting frame abuts against the connecting shaft, the first guide roller and the end plate both abut against the Y-shaped connecting frame.

[0013] Furthermore, a plurality of second guide rollers for abutting against the Y-shaped connecting frame are rotatably provided on one side of the end plate close to the connecting shaft.

[0014] The beneficial effects of the utility model are embodied in:

[0015] The utility model provides an adjustment mechanism between the end plate and the fixing seat to change the spacing between the end plate and the fixing seat after the Y-shaped connecting frame is inserted between the end plate and the fixing seat, so that the end plate and the fixing seat can directly abut the Y-shaped connecting frame during the pushing and pulling process of the telescopic mechanism, driving the Y-shaped connecting frame to move, so that when the telescopic mechanism stops moving, the Y-shaped connecting frame and the pushed and pulled object connected thereto can be driven to stop moving in time, thereby improving the pushing and pulling stability without affecting the convenience of inserting the Y-shaped connecting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model;

[0017] Figure 2 This is a structural view of the docking mechanism of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the docking mechanism of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the telescopic mechanism of the utility model.

[0020] In the figure:

[0021] 1. Telescopic mechanism; 2. Docking mechanism; 21. Fixed seat; 22. Connecting shaft; 23. End plate; 24. Adjusting mechanism; 241. Telescopic block; 242. Compression spring; 243. Top block; 3. Y-shaped connecting frame; 4. Abutting mechanism; 41. Rotating rod; 42. First guide roller; 5. Second guide roller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model discloses a push-pull mechanism, including a telescopic mechanism 1, a docking mechanism 2 is arranged at the end of the telescopic mechanism 1, and the docking mechanism 2 is driven by the telescopic mechanism 1 to move along the axial direction of the telescopic mechanism 1; the docking mechanism 2 includes a fixed seat 21 detachably arranged at the end of the telescopic mechanism 1, and a connecting shaft 22 is arranged at one end of the fixed seat 21 away from the telescopic mechanism 1, and the diameter of the connecting shaft 22 is smaller than the diameter of the fixed seat 21, and the docking mechanism 2 also includes an end plate 23 arranged at one end of the connecting shaft 22 away from the fixed seat 21, and an adjusting mechanism 24 for adjusting the distance between the end plate 23 and the fixed seat 21, and the diameter of the end plate 23 is larger than the diameter of the connecting shaft 22;

[0024] It also includes a Y-shaped connecting frame 3 disposed between the end plate 23 and the fixing seat 21 and located in the moving area of ​​the end plate 23 and the fixing seat 21. The Y-shaped connecting frame 3 is located at the bottom of the docking mechanism 2, and the bottom end is connected to the object to be pushed or pulled.

[0025] The utility model provides an adjustment mechanism 24 between the end plate 23 and the fixed seat 21 to change the spacing between the end plate 23 and the fixed seat 21 after the Y-shaped connecting frame 3 is inserted between the end plate 23 and the fixed seat 21, so that the end plate 23 and the fixed seat 21 can directly abut the Y-shaped connecting frame 3 during the pushing and pulling process of the telescopic mechanism 1, driving the Y-shaped connecting frame 3 to move, so that when the telescopic mechanism 1 stops moving, the Y-shaped connecting frame 3 and the pushed and pulled object connected thereto can be stopped in time, thereby improving the pushing and pulling stability without affecting the convenience of inserting the Y-shaped connecting frame 3.

[0026] In a specific implementation, a lifting device is provided on the object being pushed and pulled to push the Y-shaped connecting frame 3 up and down. After the object being pushed and pulled is moved into place, the Y-shaped connecting frame 3 can be lowered and moved out of the moving area of ​​the end plate 23 and the fixed seat 21 without affecting the movement of the push-pull mechanism to other positions for use.

[0027] It should be noted that the telescopic mechanism 1 is composed of a fixed sleeve, a movable sleeve, an internally threaded rod, an internally threaded rod, an externally threaded rod and a motor. The externally threaded rod is connected to the output end of the motor. The internally threaded rod is sleeved on the outside of the externally threaded rod and is threadedly connected to the externally threaded rod. At the same time, an end of the externally threaded rod away from the motor is also provided with an end for limiting the telescopic length of the internally threaded rod. The internally threaded rod is sleeved on the outside of the internally threaded rod and is threadedly connected to the internally threaded rod. The movable sleeve is sleeved on the outside of the internally threaded rod to limit the internally threaded rod so that the internally threaded rod can only move axially along the output shaft of the motor and will not completely fall off the movable sleeve. The fixed sleeve The sleeve is arranged on the outside of the movable sleeve and is used to limit the movable sleeve so that the movable sleeve can only move axially along the motor output shaft and will not completely separate from the fixed sleeve, so that when the motor output shaft rotates, the inner and outer threaded rods and the outer threaded rod are driven to rotate by the motor at the same time, and at this time the inner threaded rod is driven to move axially under the restriction of the movable sleeve. When the inner threaded rod moves to the extreme position, the movable sleeve, the inner threaded rod and the inner and outer threaded rods are a whole, and are affected by the rotation of the outer threaded rod and continue to move axially to the extreme position under the restriction of the fixed sleeve, so that the inner threaded rod and the inner and outer threaded rods can be extended and retracted in two stages, which can meet the push-pull requirements of narrow spaces.

[0028] In one embodiment, the adjustment mechanism 24 includes a telescopic block 241 arranged on the side of the end plate 23 close to the connecting shaft 22 and inserted into the connecting shaft 22. The connecting shaft 22 and the fixed seat 21 are both provided with a telescopic groove for the telescopic block 241 to move axially along the connecting shaft 22. A compression spring 242 is arranged between one end of the telescopic block 241 located in the telescopic groove and the connecting shaft 22. When the compression spring 242 is in a natural state, the distance between the end plate 23 and the fixed seat 21 is greater than the thickness of the Y-shaped connecting frame 3.

[0029] This design makes the distance between the end plate 23 and the fixing seat 21 larger than the thickness of the Y-shaped connecting frame 3 when not affected by external force, which facilitates the upward movement and alignment of the Y-shaped connecting frame 3 and reduces the accuracy and difficulty of alignment.

[0030] In one embodiment, the adjustment mechanism 24 also includes a top block 243 which is arranged in the telescopic groove and one end of which passes through the connecting shaft 22. The top block 243 is pushed up and down by the Y-shaped connecting frame 3. A slot adapted to the top block 243 is opened on the telescopic block 241. The side where the top block 243 contacts the slot is an inclined surface. When the top block 243 moves toward the slot, the telescopic block 241 moves toward the fixed seat 21.

[0031] With this design, the thrust force of the Y-shaped connecting frame 3 rising and clamping between the end plate 23 and the fixing seat 21 can be used to push the top block 243 to squeeze the inclined surface of the slot, so that the end plate 23 moves toward the side close to the Y-shaped connecting frame 3 until it abuts against the Y-shaped connecting frame 3, thereby reducing the movable margin of the Y-shaped connecting frame 3.

[0032] In one embodiment, a contact mechanism 4 is provided on one side of the fixing seat 21 close to the Y-shaped connecting frame 3 and is pushed by the telescopic block 241 to contact the Y-shaped connecting frame 3;

[0033] The abutment mechanism 4 includes a rotating rod 41 rotatably arranged on one side of the fixed seat 21 close to the connecting shaft 22, one end of the rotating rod 41 is inserted into the telescopic groove and is located in the moving area of ​​the telescopic block 241, and the other end of the rotating rod 41 is rotatably arranged with a first guide roller 42;

[0034] When the compression spring 242 is in a natural state, the telescopic block 241 does not contact the rotating rod 41 , and when the Y-shaped connecting frame 3 abuts against the connecting shaft 22 , the first guide roller 42 and the end plate 23 both abut against the Y-shaped connecting frame 3 .

[0035] In this design, the telescopic block 241 is used to move and push the rotating rod 41 to rotate, so that the first guide roller 42 abuts against the Y-shaped connecting frame 3, thereby reducing the movable margin on the other side of the Y-shaped connecting frame 3 and ensuring the moving stability of the Y-shaped connecting frame 3 during the pushing and pulling process.

[0036] In one embodiment, a plurality of second guide rollers 5 for abutting against the Y-shaped connecting frame 3 are rotatably provided on one side of the end plate 23 close to the connecting shaft 22 .

[0037] With this design, the first guide roller 42 cooperates with the second guide roller 5 to reduce the friction resistance when the Y-shaped connecting frame 3 is moved downward and withdrawn.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] In addition, "plurality" means two or more.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A push-pull mechanism, characterized in that: The invention comprises a telescopic mechanism (1), wherein a docking mechanism (2) is arranged at the end of the telescopic mechanism (1), and the docking mechanism (2) is driven by the telescopic mechanism (1) to move along the axial direction of the telescopic mechanism (1); the docking mechanism (2) comprises a fixing seat (21) detachably arranged at the end of the telescopic mechanism (1), and a connecting shaft (22) is arranged at one end of the fixing seat (21) away from the telescopic mechanism (1), and the diameter of the connecting shaft (22) is smaller than the diameter of the fixing seat (21); the docking mechanism (2) also comprises an end plate (23) arranged at one end of the connecting shaft (22) away from the fixing seat (21), and an adjusting mechanism (24) for adjusting the distance between the end plate (23) and the fixing seat (21), and the diameter of the end plate (23) is larger than the diameter of the connecting shaft (22); It also includes a Y-shaped connecting frame (3) arranged between the end plate (23) and the fixing seat (21) and located in the moving area of ​​the end plate (23) and the fixing seat (21); the Y-shaped connecting frame (3) is located at the bottom of the docking mechanism (2), and the bottom end is connected to the object to be pushed or pulled.

2. A push-pull mechanism according to claim 1, characterized in that: The adjustment mechanism (24) comprises a telescopic block (241) arranged on a side of the end plate (23) close to the connecting shaft (22) and inserted into the connecting shaft (22); a telescopic groove for the telescopic block (241) to move axially along the connecting shaft (22) is provided in the connecting shaft (22) and the fixed seat (21); a compression spring (242) is provided between one end of the telescopic block (241) located in the telescopic groove and the connecting shaft (22); when the compression spring (242) is in a natural state, the distance between the end plate (23) and the fixed seat (21) is greater than the thickness of the Y-shaped connecting frame (3).

3. A push-pull mechanism according to claim 2, characterized in that: The adjusting mechanism (24) further comprises a top block (243) which is arranged in the telescopic slot and has one end passing through the connecting shaft (22); the top block (243) is pushed by the Y-shaped connecting frame (3) to move up and down; a slot which matches the top block (243) is provided on the telescopic block (241); a side of the top block (243) in contact with the slot is an inclined surface; when the top block (243) moves toward a side close to the slot, the telescopic block (241) moves toward a side close to the fixing seat (21).

4. A push-pull mechanism according to claim 2, characterized in that: A contact mechanism (4) is provided on one side of the fixing seat (21) close to the Y-shaped connecting frame (3), which is pushed by the telescopic block (241) and contacts the Y-shaped connecting frame (3); The abutment mechanism (4) comprises a rotating rod (41) rotatably arranged on a side of the fixed seat (21) close to the connecting shaft (22); one end of the rotating rod (41) is inserted into the telescopic groove and is located in the moving area of ​​the telescopic block (241); and the other end of the rotating rod (41) is rotatably arranged with a first guide roller (42); When the compression spring (242) is in a natural state, the telescopic block (241) does not contact the rotating rod (41), and when the Y-shaped connecting frame (3) abuts against the connecting shaft (22), the first guide roller (42) and the end plate (23) both abut against the Y-shaped connecting frame (3).

5. A push-pull mechanism according to claim 1, characterized in that: A plurality of second guide rollers (5) for contacting the Y-shaped connecting frame (3) are rotatably arranged on one side of the end plate (23) close to the connecting shaft (22).

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