Bidirectional carrying push-pull vehicle

By designing a bidirectional transport push-pull trolley with loading and processing positions on both sides of the longitudinal track, and using push-pull chains and reversing handles to achieve bidirectional transport of the material tray, the problem of long push-pull trolley tracks and large space occupation in the existing technology is solved, and the travel of the push-pull trolley is halved.

CN223765346UActive Publication Date: 2026-01-06WEIFANG FENGDONG HEAT TREATMENT CO LTD
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Patent Information

Application Number
CN202520064963.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-06
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing push-pull trolleys can only push in one direction, resulting in large space occupation during equipment installation, long trolley tracks, and excessive travel distances.

Method used

Design a bidirectional transport push-pull trolley with loading and processing positions on both sides of a longitudinal track. The trolley uses push-pull chains and reversing handles to achieve bidirectional transport of the material tray. The push-pull head is driven by a sprocket to move on the track, realizing the pushing and pulling of the material tray.

Benefits of technology

This allows the processing stations to be installed on both sides of the trolley track, halving the trolley's travel distance and optimizing space utilization.

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Abstract

The utility model discloses a two-way carrying push-pull trolley which comprises two longitudinal rails, the left side and the right side of each rail are respectively provided with a feeding position and a machining position, the rails are provided with a push-pull trolley body capable of moving along the rails, the push-pull trolley body is provided with two transverse roller rails, a push-pull chain is arranged between the roller rails, and the push-pull chain is connected with the two transverse roller rails. The two ends of the push-and-pull chain are not connected, the two ends of the push-and-pull chain are respectively and fixedly provided with a push-and-pull head, the two push-and-pull heads face opposite directions, the push-and-pull chain moves along the push-and-pull connecting track and the extension tracks, the two ends of the upper portion of the push-and-pull chain track are communicated with the two extension tracks respectively, and a reversing handle is arranged at the communication position. Two chain wheels are arranged in the push-pull trolley, the chain wheels drive the push-pull chain and drive the push-pull head on the push-pull chain to move left and right to carry the material trays, feeding and discharging can be achieved in the mode that the push-pull trolley moves towards the two sides of the advancing direction of the push-pull trolley, the machining positions can be installed on the two sides of the track of the push-pull trolley, and the track of the push-pull trolley is halved.
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Description

Technical Field

[0001] This utility model relates to the field of material handling auxiliary equipment, and in particular to a bidirectional material handling pushcart. Background Technology

[0002] Trolleys are used for loading and unloading workpieces and for transporting them between different pieces of equipment. For example, in... Figure 7 In the multi-purpose furnace production line, the push-pull trolley pulls the material tray from the loading and unloading positions onto the push-pull trolley, then moves and pushes it to the processing position for processing. After processing is completed, it is pulled back and pushed to the next processing position until processing is completed and returned to the loading and unloading rack.

[0003] However, in existing technology, push-pull carts can only be pushed in one direction. Therefore, during equipment installation, all processing equipment can only be arranged in a straight line and installed on one side of the push-pull cart, such as... Figure 7 As shown, this results in a long trolley track, a large space occupation, and an excessively long trolley travel distance for loading and unloading materials. This is an existing problem. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a bidirectional transport trolley, which allows the processing position to be installed on both sides of the trolley track, and halves the trolley's travel distance.

[0005] This utility model is achieved through the following technical solution:

[0006] A bidirectional transport trolley includes two longitudinal tracks, with loading and processing positions on both the left and right sides of the tracks. A trolley movable along the tracks is mounted on each track. The trolley has two transverse roller tracks, with a push-pull chain between them. The two ends of the push-pull chain are not connected, and each end of the chain has a push-pull head fixed to it, with the two push-pull heads facing opposite directions. The trolley also has two extended tracks and a circular push-pull chain track. The push-pull chain moves along the extended tracks and the extended tracks. The upper ends of the push-pull chain track are connected to the two extended tracks, with a reversing handle at the connection point. The trolley contains two sprockets that drive the push-pull chain, causing the push-pull heads on the chain to move left and right, transporting the material tray.

[0007] Further optimized, both the feeding station and the processing station are provided with a second roller track and a second extended track, and the second roller track and the second extended track are matched with each other.

[0008] In a further optimized configuration, the sprocket-driven push-pull chain extends into the second extended track via an extended track, and pushes or pulls the material tray via a push-pull head.

[0009] In a further optimized manner, gaps are provided on the push-pull chain track, the extension track, and the second extension track. The push-pull head is fixed on the push-pull chain and protrudes from the gaps. The push-pull chain drives the push-pull head to move within the gaps of the tracks.

[0010] Further optimized, the reversing handle includes an identical left reversing handle and a right reversing handle, and the annular push-pull chain track includes a horizontal track and a vertical track. When the reversing handle is lowered, the extension track is connected to the horizontal track, and when it is raised, the connection between the extension track and the horizontal track is broken.

[0011] In a further optimized manner, the push-pull cart is equipped with a first motor and a second motor, with the first motor driving the sprocket to rotate via a synchronous chain.

[0012] In a further optimized manner, the bottom of the push-pull trolley is provided with four rollers, and a rotating shaft is provided between two of the rollers. The second motor drives the push-pull trolley to move back and forth on the track through a synchronous belt and the rollers.

[0013] The beneficial effects of this utility model are:

[0014] This invention discloses a bidirectional material handling trolley, which can push and pull materials to both sides of the trolley's direction of travel, allowing processing stations to be installed on both sides of the trolley's track. The track is shortened, and the trolley's travel distance is halved for the same number of processing stations. This invention achieves the reversing of the push-pull chain through a push-pull chain track and a reversing handle. Each end of the push-pull chain has a push-pull head, corresponding to pushing in the two directions respectively. The material tray is pushed by the forward and reverse rotation of the sprocket driving the push-pull heads. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal cross-section of the push-pull cart pushing the material tray to the right in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal cross-section of the push-pull cart pushing the material tray to the left in this utility model.

[0018] Figure 4 This is a cross-sectional schematic diagram of the push-pull chain track and the extension track of this utility model.

[0019] Figure 5 This is a schematic diagram of the push-pull head in this utility model.

[0020] Figure 6 This is a layout diagram of the push-pull cart and processing station in this utility model.

[0021] Figure 7 The existing layout diagram described in the background art is shown.

[0022] In the diagram: 1. Processing station; 2. Loading station; 3. Push-pull trolley; 31. Roller; 32. Second motor; 33. First motor; 34. Sprocket; 4. Track; 5. Push-pull head; 6. Push-pull chain track; 61. Gap; 62. Push-pull chain; 63. Extension track; 64. Vertical track; 65. Horizontal track; 7. Roller track; 91. Right reversing handle; 92. Left reversing handle. Detailed Implementation

[0023] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "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 the invention and simplifying the description. They 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 the present invention.

[0024] like Figures 1-6 As shown, this utility model provides a bidirectional transport trolley, including two longitudinal tracks 4. Each track has a loading position 2 and a processing position 1 on its left and right sides. A trolley 3, movable along the tracks 4, is mounted on each track. The trolley has two transverse roller tracks 8, with a push-pull chain 62 between the roller tracks 8. The two ends of the push-pull chain are not connected. Each end of the push-pull chain 62 has a push-pull head 5 fixed to it. The push-pull chain 62 drives the push-pull heads to pull the material tray 7 down from the loading position 2, and then moves it to each processing position 1. The two push-pull heads 5 on the push-pull chain face opposite directions, corresponding to the processing position and loading position on either side of the track 4, respectively.

[0025] like Figure 2 , 4 As shown, the push-pull cart 3 is provided with two sections of extended rails 63 and a ring-shaped push-pull chain rail 6. The push-pull chain 62 moves along the push-pull connecting rail 6 and the extended rails 63. The two ends of the upper part of the push-pull chain rail 6 are respectively connected to the two sections of extended rails 63, and a reversing handle is provided at the connection point. The reversing handle can connect or disconnect the extended rails and the push-pull chain rail. The push-pull cart is provided with two sprockets 34. The sprockets drive the push-pull chain 62, which drives the push-pull head 5 on the push-pull chain to move left and right to transport the material tray.

[0026] In a preferred embodiment, both the loading position 2 and the processing position 1 are provided with a second roller track 12 and a second extension track 11. The second roller track and the second extension track are matched with the roller track 8 and the extension track 63 to facilitate the feeding of materials to the processing position by the push-pull trolley.

[0027] In a preferred embodiment, the sprocket 34 drives the push-pull chain 62 to extend into the second extension track 11 via the extension track 63, and pushes or pulls the material tray through the push-pull head 5, that is, extends into the processing position for feeding or unloading.

[0028] As a preferred implementation method, such as Figure 1 As shown, gaps 61 are provided on the push-pull chain track 6, the extension track 63, and the second extension track 11. The push-pull head 5 is fixed on the push-pull chain 62 and protrudes from the gap 61. The push-pull chain 62 drives the push-pull head 5 to move within the gap 61 of the track.

[0029] As a preferred implementation method, such as Figure 2 , 3 As shown in Figure 4, the reversing handle includes an identical left reversing handle 92 and a right reversing handle 91. The annular push-pull chain track 6 includes a horizontal track 65 and a vertical track 64. When the reversing handle is lowered, the extension track 63 is connected to the upper horizontal track 65. When it is raised, the connection between the extension track 63 and the upper horizontal track is disconnected. Correspondingly, when pushing or pulling the material tray to the right workstation, the right end push-pull head is used, the left reversing handle 92 is raised, and the right reversing handle 91 is lowered. The opposite is true when pushing or pulling the material tray to the left workstation.

[0030] In a preferred embodiment, the push-pull cart is equipped with a first motor 33 and a second motor 32. The first motor 33 drives the sprocket 34 to rotate through a synchronous chain, and the two sprockets rotate synchronously through the synchronous chain.

[0031] In a preferred embodiment, the push-pull cart 3 is provided with four rollers 31 at its bottom, and a rotating shaft is provided between two of the rollers. The second motor 32 drives the push-pull cart 3 to move back and forth on the track 4 through the synchronous belt and the rollers 31.

[0032] More specifically:

[0033] The push-pull trolley pulls the material tray on the right loading position onto the push-pull trolley, then moves to the front of the right processing position, sends the material tray to the processing position, and then returns to the loading position to continue picking up and sending material trays.

[0034] When feeding material from the left side, the push-pull head first resets (the push-pull head is in the middle position of the horizontal pipe on the upper side of the push-pull chain track), then the right reversing handle 91 is lifted, the sprocket rotates clockwise to feed the right end of the push-pull chain into the vertical track on the right side, and the push-pull head on the left end moves to the middle position of the upper horizontal pipe. The left reversing handle 92 is then lowered, thus feeding material from the left side of the push-pull chain. Figures 2 to 3 Then, the left-side processing station is loaded and unloaded.

[0035] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bidirectional carrying trolley, comprising two longitudinal tracks, and a loading position and a processing position are arranged on the left and right sides of the tracks, characterized in that: The track is provided with a push-pull car which can move along the track, the push-pull car is provided with two transverse roller tracks, a push-pull chain is arranged between the roller tracks, the two ends of the push-pull chain are not connected, and one push-pull head is fixed to each end of the push-pull chain, and the two push-pull heads are opposite to each other. The push-pull car is provided with two extension tracks and a ring-shaped push-pull chain track, the push-pull chain moves along the push-pull chain track and the extension tracks, the two ends of the upper portion of the push-pull chain track are connected with the two extension tracks, respectively, and the connection portions are provided with reversing handles, The push-pull car is provided with two chain wheels, the chain wheels drive the push-pull chain to move the push-pull heads left and right, and carry the material disc.

2. The bidirectional handling tugger train of claim 1, wherein: The upper feeding position and the processing position are provided with second roller tracks and second extension tracks, and the second roller tracks and the second extension tracks are matched with the roller tracks and the extension tracks.

3. The bidirectional handling tugger train of claim 2, wherein: The chain wheels drive the push-pull chain to extend into the second extension track through the extension track, and the push-pull heads push or pull the material disc.

4. The bidirectional handling tugger train of claim 3, wherein: The push-pull chain track, the extension track and the second extension track are all provided with gaps, the push-pull heads are fixed to the push-pull chain and can pass through the gaps, and the push-pull chain drives the push-pull heads to move in the gaps of the tracks.

5. The bidirectional handling tug of claim 1, wherein: The reversing handle includes the same left reversing handle and right reversing handle, the ring-shaped push-pull chain track includes a horizontal track and a vertical track, when the reversing handle is lowered, the extension track is connected with the horizontal track, and when the reversing handle is lifted, the connection between the extension track and the horizontal track is disconnected.

6. The bidirectional handling tug of claim 1, wherein: The push-pull car is provided with a first motor and a second motor, the first motor drives the chain wheels to rotate through a synchronous chain.

7. The bidirectional handling tugger train of claim 6, wherein: The bottom of the push-pull car is provided with four rollers, a rotating shaft is arranged between two of the rollers, and the second motor drives the push-pull car to move forward and backward on the track through a synchronous belt and the rollers.