Buffer device for power and free conveying equipment

By designing a buffer device and utilizing the cooperation of the telescopic frame and the buffer frame, the safety hazards caused by the inertial movement of the hoisting trolley were solved, and the stable buffering and vibration reduction effects of the hoisting trolley were achieved.

CN223822642UActive Publication Date: 2026-01-23HEBEI ZHENGHANG TRANSMISSION EQUIP MFG CO LTD
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Patent Information

Application Number
CN202520311228.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-01-23
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

In the existing technology, when the hoisting trolley is disconnected from the chain, the inertia causes the hoisting trolley to continue moving, which may collide with the interception device, posing a safety hazard, especially when the load is heavy.

Method used

A buffer device was designed, including a bearing rail, a stopping mechanism, and a buffer mechanism. The tilting platform is moved by the telescopic frame, and the lifting rod cooperates with the buffer frame to achieve buffering and vibration reduction of the hoisting trolley. The unidirectional rotating wheel is used to reduce friction and prevent reverse movement.

Benefits of technology

It effectively reduced the vibration of the hoisting trolley, lowered safety hazards, and ensured the stability and safety of the hoisting trolley.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223822642U_ABST
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Abstract

The utility model discloses a buffering device for power and free conveying equipment. The buffering device comprises a bearing rail, a plurality of hoisting trolleys are placed in the bearing rail, lifting rods are installed at the lower ends of the two sides of each hoisting trolley, a front shovel is installed at the upper end of each hoisting trolley, a stopping mechanism is installed on the bearing rail, and a buffering mechanism is installed on the bearing rail. The stopping mechanism comprises a telescopic frame, an inclined table, universal balls and a limiting groove. The buffering mechanism comprises a fixing table and a buffering frame. The lifting trolley has the beneficial effects that the inclined table can be driven to move to the front side of the lifting rod through the telescopic frame, so that the lifting rod can be conveniently lifted, the front shovel can be descended, the chain and the front shovel can be disconnected, and then the lifting trolley can be buffered through the buffer frame, so that the vibration can be reduced, and the potential safety hazard can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of accumulation and conveying equipment technology, and more specifically, to a buffer device for accumulation and conveying equipment. Background Technology

[0002] The accumulating conveyor moves the hoisting trolley via a chain, which in turn moves the parts. Once the parts have moved to the designated position, the connection between the hoisting trolley and the chain needs to be disconnected.

[0003] In existing technology, when the connection between the hoisting trolley and the chain is disconnected, the front shovel of the hoisting trolley is usually pushed downward by a stopper. However, due to inertia, the hoisting trolley will continue to move forward. In order to ensure the position of the hoisting trolley, an intercepting device needs to be set in front. When the hoisted part is large, the hoisting trolley will collide with the intercepting device and the part will swing, thus posing a safety hazard.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by designing a buffer device for accumulation and conveying equipment.

[0006] To achieve the above objectives, the technical solution of this utility model is a buffer device for accumulating and conveying equipment, comprising a bearing rail, in which multiple hoisting trolleys are placed, lifting rods are installed at the lower ends of both sides of the hoisting trolleys, and a front shovel is installed at the upper end of the hoisting trolleys. When the lifting rods move upward, the front shovels can move downward, and when the lifting rods move downward, the front shovels can move upward. A stopping mechanism is installed on the bearing rail, and a buffer mechanism is installed on the bearing rail.

[0007] The stopping mechanism includes telescopic frames installed on both sides of the lower end of the bearing rail. One end of the telescopic frame is equipped with an inclined platform, which can be moved to the front of the lifting rod. Universal ball bearings are installed on both sides of the lower end of the lifting rod. A limit groove is opened at the upper end of the inclined platform, and the universal ball bearings can be moved into the limit groove.

[0008] The buffer mechanism includes a fixed platform installed on the rear side of the upper end of the inclined platform, a buffer frame is installed on the fixed platform, and the lifting rod can be moved to the front side of the buffer frame.

[0009] Furthermore, the telescopic frame includes an L-shaped fixing plate installed on one side of the lower end of the bearing rail, a telescopic cylinder is installed on one side of the L-shaped fixing plate, and the tilting platform is installed on the telescopic end of the telescopic cylinder.

[0010] Furthermore, the buffer frame includes a telescopic block located on one side of the fixed platform. A square hole is opened on the fixed platform. One end of the telescopic block extends through the square hole to the rear side of the fixed platform. Multiple unidirectional rotating wheels are installed on the four side surfaces inside the square hole. A reset frame is installed on the rear side of the fixed platform.

[0011] Furthermore, the reset frame includes pulleys installed on the rear side of the telescopic block, limit rods are installed at both ends of the telescopic block, limit holes are opened at both ends of the square hole, the limit rods can enter into the limit holes, and trapezoidal platforms are installed on both sides of the lower end of the bearing rail.

[0012] Furthermore, the cross-sectional shape of the limiting groove is stepped.

[0013] The beneficial effects of this utility model are as follows: the telescopic frame can move the tilting platform to the front of the lifting rod, which makes it easier to lift the lifting rod and lower the front shovel. Then the chain can be disconnected from the front shovel. The buffer frame can buffer the hoisting trolley, thereby reducing vibration and reducing safety hazards.

[0014] Vibration reduction can be achieved through the friction between the one-way rotating wheel and the telescopic block. The rotation of the one-way rotating wheel can reduce the friction when the telescopic block returns to its original position.

[0015] The stepped limiting groove prevents the hoisting trolley from moving in the opposite direction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a buffer device for accumulation and conveying equipment according to the present invention;

[0017] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the buffer frame described in this utility model;

[0019] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0020] Figure 5 This is a schematic diagram showing the positional relationship between the limiting groove and the universal ball bearing described in this utility model;

[0021] In the diagram, 1. Load-bearing rail; 2. Lifting trolley; 3. Lifting rod; 4. Front shovel; 5. Telescopic frame; 6. Inclined platform; 7. Universal ball bearing; 8. Limiting groove; 9. Fixed platform; 10. Buffer frame; 11. L-shaped fixed plate; 12. Telescopic cylinder; 13. Telescopic block; 14. Square hole; 15. One-way rotating wheel; 16. Reset frame; 17. Pulley; 18. Limiting rod; 19. Limiting hole; 20. Trapezoidal platform. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] This utility model provides, for example Figure 1-5 A buffer device for accumulating and conveying equipment is shown, comprising a support rail 1, in which multiple lifting trolleys 2 are placed. Lifting rods 3 are installed at the lower ends of both sides of the lifting trolleys 2, and front shovels 4 are installed at the upper ends of the lifting trolleys 2. When the lifting rods 3 move upward, the front shovels 4 can move downward, and when the lifting rods 3 move downward, the front shovels 4 can move upward. A stop mechanism and a buffer mechanism are installed on the support rail 1. The stop mechanism includes telescopic frames 5 installed on both sides of the lower end of the support rail 1. An inclined platform 6 is installed at one end of the telescopic frame 5. The inclined platform 6 can move to the front side of the lifting rods 3. Universal ball bearings 7 are installed on both sides of the lower end of the lifting rods 3. A limit groove 8 is opened at the upper end of the inclined platform 6, and the universal ball bearings 7 can move into the limit groove 8. The buffer mechanism includes a fixed platform 9 installed on the rear side of the upper end of the inclined platform 6. A buffer frame 10 is installed on the fixed platform 9, and the lifting rods 3 can move to the front side of the buffer frame 10.

[0025] The buffering process of this device for the hoisting trolley 2 is as follows: Under normal conditions, the lifting boom 3 is located below under the action of gravity, and the front shovel 4 is located above. When the chain moves, it can push the front shovel 4 to move the hoisting trolley 2. When it is necessary to stop the hoisting trolley 2, the tilting platform 6 is moved below the universal ball bearing 7 through the telescopic frame 5. Under the action of the tilting surface, the universal ball bearing 7 and the lifting boom 3 move upward, which in turn causes the front shovel 4 to move downward. This allows the front shovel 4 to disconnect from the chain, causing the hoisting trolley 2 to lose its power source. Under the action of inertia, the hoisting trolley 2 can then stop moving. Cart 2 continues to move, causing the universal ball bearing 7 to move into the limiting groove 8, and then the lifting rod 3 to contact the buffer frame 10. The buffer frame 10 can buffer the lifting trolley 2, thereby stopping the lifting trolley 2 from moving. The limiting groove 8 can prevent the lifting trolley 2 from moving backward. When the lifting trolley 2 needs to move, the tilting platform 6 is pulled to both sides by the telescopic frame 5, so that the tilting platform 6 no longer supports the universal ball bearing 7, allowing the lifting rod 3 to move downward and the front shovel 4 to move upward, thereby facilitating the chain to drive the lifting trolley 2 to move.

[0026] Refer to the instruction manual appendix Figure 1 The telescopic frame 5 includes an L-shaped fixing plate 11 installed on one side of the lower end of the bearing rail 1, a telescopic cylinder 12 installed on one side of the L-shaped fixing plate 11, and an inclined platform 6 installed on the telescopic end of the telescopic cylinder 12.

[0027] The process of the telescopic frame 5 moving the tilting platform 6 is as follows: the telescopic cylinder 12 is activated to extend or retract, and the tilting platform 6 can be moved left and right by the telescopic cylinder 12.

[0028] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Included with instruction manual Figure 4 The buffer frame 10 includes a telescopic block 13 located on one side of the fixed platform 9. A square hole 14 is opened on the fixed platform 9. One end of the telescopic block 13 passes through the square hole 14 and extends to the rear side of the fixed platform 9. Multiple one-way rotating wheels 15 are installed on the four side surfaces inside the square hole 14. A reset frame 16 is installed on the rear side of the fixed platform 9.

[0029] The buffer frame 10 buffers the hoisting trolley 2 as follows: When the universal ball bearing 7 moves into the limiting groove 8, the lifting rod 3 can contact the telescopic block 13 and push the telescopic block 13 to the rear of the fixed platform 9. At this time, the one-way rotating wheel 15 will not rotate. Through the friction between the one-way rotating wheel 15 and the telescopic block 13, the telescopic block 13 can be decelerated, thereby reducing the vibration of the hoisting trolley 2. When the tilting platform 6 returns to its original position, the telescopic block 13 can be pushed back to its original position through the reset frame 16. At this time, the one-way rotating wheel 15 can rotate, which can reduce the friction when the telescopic block 13 moves.

[0030] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 3 The reset frame 16 includes a pulley 17 installed on the rear side of the telescopic block 13. Limiting rods 18 are installed at both ends of the telescopic block 13. Limiting holes 19 are opened at both ends of the square hole 14. The limiting rods 18 can enter the limiting holes 19. Trapezoidal platforms 20 are installed on both sides of the lower end of the bearing rail 1.

[0031] The process of resetting the telescopic block 13 by the reset frame 16 is as follows: When the tilting table 6 returns to its original position, it can drive the telescopic block 13 and the pulley 17 to move. After the pulley 17 contacts the inclined surface of the trapezoidal table 20, it can push the telescopic block 13 away from the trapezoidal table 20, thereby resetting the telescopic block 13. The limiting rod 18 and the limiting hole 19 can limit the telescopic block 13.

[0032] Refer to the instruction manual appendix Figure 5 The limiting groove 8 has a stepped cross-section, which allows the universal ball bearing 7 to fall downwards a certain distance as it moves forward, thus preventing the hoisting trolley 2 from moving backwards.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A buffer device for accumulating and conveying equipment, comprising a support rail (1), wherein a plurality of lifting trolleys (2) are placed in the support rail (1), lifting rods (3) are installed at the lower ends of both sides of the lifting trolleys (2), and a front shovel (4) is installed at the upper end of the lifting trolleys (2), wherein when the lifting rods (3) move upward, the front shovel (4) can move downward, and when the lifting rods (3) move downward, the front shovel (4) can move upward, characterized in that, A stop mechanism is installed on the bearing rail (1), and a buffer mechanism is installed on the bearing rail (1); The stopping mechanism includes telescopic frames (5) installed on both sides of the lower end of the bearing rail (1). One end of the telescopic frame (5) is equipped with an inclined platform (6). The inclined platform (6) can be moved to the front side of the lifting rod (3). Universal ball bearings (7) are installed on both sides of the lower end of the lifting rod (3). A limit groove (8) is opened at the upper end of the inclined platform (6). The universal ball bearings (7) can be moved into the limit groove (8). The buffer mechanism includes a fixed platform (9) installed on the rear side of the upper end of the inclined platform (6), a buffer frame (10) is installed on the fixed platform (9), and the lifting rod (3) can be moved to the front side of the buffer frame (10).

2. A buffer device for an accumulation and conveying equipment according to claim 1, characterized in that, The telescopic frame (5) includes an L-shaped fixing plate (11) installed on one side of the lower end of the bearing rail (1), a telescopic cylinder (12) is installed on one side of the L-shaped fixing plate (11), and the tilting platform (6) is installed on the telescopic end of the telescopic cylinder (12).

3. A buffer device for an accumulation and conveying equipment according to claim 1, characterized in that, The buffer frame (10) includes a telescopic block (13) located on one side of the fixed platform (9). The fixed platform (9) has a square hole (14). One end of the telescopic block (13) extends through the square hole (14) to the rear side of the fixed platform (9). Multiple one-way rotating wheels (15) are installed on the four side surfaces inside the square hole (14). A reset frame (16) is installed on the rear side of the fixed platform (9).

4. A buffer device for an accumulation and conveying equipment according to claim 3, characterized in that, The reset frame (16) includes a pulley (17) installed on the rear side of the telescopic block (13). Limiting rods (18) are installed at both ends of the telescopic block (13). Limiting holes (19) are opened at both ends of the square hole (14). The limiting rod (18) can enter into the limiting hole (19). Trapezoidal platforms (20) are installed on both sides of the lower end of the bearing rail (1).

5. A buffer device for an accumulation and conveying equipment according to claim 1, characterized in that, The cross-sectional shape of the limiting groove (8) is stepped.