Height-adjustable feeding trolley suitable for two-layer conveying line
By designing an adjustable-height loading trolley, the problem of workers repeatedly adjusting the height of the hydraulic trolley was solved, enabling easy connection between the trolley and the conveyor line, saving time and costs.
Patent Information
- Application Number
- CN202520548096.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing technologies, workers need to repeatedly adjust the height of the hydraulic cart to connect with the double-layer conveyor line, which increases the workers' working time and the lifespan of the hydraulic cart.
Design a height-adjustable loading trolley suitable for two-layer conveyor lines. The trolley automatically docks with the conveyor line via a frame, adjusting rod, and unpowered roller assembly, simplifying worker operations.
Workers only need to align the material cart once to connect the upper and lower conveyor lines, saving workers' time, reducing costs and extending the service life of the equipment.
Smart Images

Figure CN223865781U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of conveyor line loading, specifically a loading vehicle that is applicable to two-layer conveyor lines and has adjustable height. [Background Technology]
[0002] Currently, in the automated assembly industry, a double-layer conveyor system is often used to transport raw materials to assembly stations. This system involves an upper layer for conveying raw materials and a lower layer for collecting empty pallets. When placing pallets containing raw materials onto the upper conveyor, a hand-push hydraulic trolley is typically used. Workers place the pallets on the trolley, raise it to the height of the upper conveyor, and then push it onto the upper line. After the raw materials on the pallets are assembled, the empty pallets are transported out via the lower conveyor. To remove the empty pallets, workers must lower the hydraulic trolley back to the lower conveyor height. This process increases the worker's workload and accelerates the wear and tear on the hydraulic trolley. [Utility Model Content]
[0003] The purpose of this invention is to address the aforementioned shortcomings by providing a height-adjustable loading cart suitable for two-layer conveyor lines. Workers only need to align the cart with the upper and lower conveyor lines initially, saving workers' time and replacing hydraulic carts, thus saving both cost and time.
[0004] To achieve the above objectives, a height-adjustable loading trolley suitable for two-layer conveyor lines is designed, comprising a frame 1, a lower layer fixing block 2, a lower layer adjusting rod 3, a lower layer plate 4, a non-powered roller assembly 5, an upper layer fixing block 6, an upper layer adjusting rod 7, and an upper layer plate 8. The frame 1 has a lower layer plate 4 and an upper layer plate 8 on its lower and upper layers, respectively. The lower layer plate 4 passes through the lower layer adjusting rod 3 and is locked to the lower layer adjusting rod 3 with a nut. The lower layer adjusting rod 3 is fixedly connected to the frame 1 via the lower layer fixing block 2. The height of the lower layer plate 4 is adjusted via the lower layer adjusting rod 3. The upper plate 8 passes through the upper adjusting rod 7 and is locked to the upper adjusting rod 7 by a nut. The upper adjusting rod 7 is fixedly connected to the frame 1 by the upper fixing block 6. The height of the upper plate 8 is adjusted by the upper adjusting rod 7. Both the lower plate 4 and the upper plate 8 are equipped with non-powered roller assemblies 5. The rollers 5.6 of the non-powered roller assembly 5 are equipped with material trays 5.4. The rollers 5.6 on the upper plate 8 and the lower plate 4 move up and down by the upper adjusting rod 7 and the lower adjusting rod 3, respectively, thereby completing the docking with the upper and lower conveyor lines of the automatic assembly line.
[0005] Furthermore, the non-powered roller assembly 5 is connected to the lower plate 4 and the upper plate 8 by means of pin holes for positioning and screw locking, which not only ensures reliable connection but also further saves operation time.
[0006] Furthermore, the non-powered roller assembly 5 includes a roller fixing plate 5.1, a roller pressure plate 5.2, guardrails 5.5, and rollers 5.6. The rollers 5.6 are arranged side by side, and both ends of the rollers 5.6 are locked to the roller fixing plate 5.1 by the roller pressure plate 5.2. A material tray 5.4 is placed on the rollers 5.6. Guardrails 5.5 are provided on both the left and right sides of the material tray 5.4. The guardrails 5.5 are inserted into the fixing holes of the roller fixing plate 5.1, thereby ensuring that the material tray 5.4 will not slip out of the material cart during transportation.
[0007] Furthermore, the two ends of the roller 5.6 are respectively placed in the grooves of the roller fixing plate 5.1, and the roller pressure plate 5.2 is fixed on the roller fixing plate 5.1 by means of pin hole positioning and screw locking. This structure design is simple and reliable, saving on-site operation time.
[0008] Furthermore, the non-powered roller assembly 5 also includes a side guide wheel 5.3, which is distributed along the feeding direction of the roller 5.6. The side guide wheel 5.3 is located on the outside of the guardrail 5.5 and is tactilely connected to the guardrail 5.5. The side guide wheel 5.3 is fixed to the roller fixing plate 5.1 by threaded locking.
[0009] Furthermore, the unpowered roller assembly 5 located on the upper plate 8 moves up and down by adjusting the upper adjusting rod 7, so that the upper surface of the roller 5.6 on the upper plate 8 is at the same height as the upper conveyor line of the automatic assembly line; the unpowered roller assembly 5 located on the lower plate 4 moves up and down by adjusting the lower adjusting rod 3, so that the upper surface of the roller 5.6 on the lower plate 4 is at the same height as the lower conveyor line of the automatic assembly line.
[0010] Furthermore, the lower fixing block 2 is connected to the lower layer of the frame 1 through screw holes, the bottom end of the lower adjusting rod 3 is fixedly connected to the lower fixing block 2, and the lower adjusting rod 3 is distributed at the four corners of the lower plate 4. The upper fixing block 6 is connected to the upper layer of the frame 1 through screw holes, the bottom end of the upper adjusting rod 7 is fixedly connected to the upper fixing block 6, and the upper adjusting rod 7 is distributed at the four corners of the upper plate 8.
[0011] Compared with the prior art, this utility model provides a loading cart that is applicable to two-layer conveyor lines and has an adjustable height. Workers only need to align the cart with the upper and lower conveyor lines respectively at the beginning. The upper layer of the cart holds the material tray containing raw materials, and the lower layer collects the empty material tray. This loading cart has a novel structure, reasonable design, is simple and reliable, saves workers' labor time, replaces hydraulic carts, and indirectly saves the company costs and time. It is worth promoting and applying. [Image Description]
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0013] Figure 2 This is an exploded view of the present invention;
[0014] Figure 3 This is a schematic diagram of the structure of the non-powered roller assembly of this utility model;
[0015] In the diagram: 1. Frame; 2. Lower fixing block; 3. Lower adjusting rod; 4. Lower plate; 5. Non-powered roller assembly; 6. Upper fixing block; 7. Upper adjusting rod; 8. Upper plate; 5.1. Roller fixing plate; 5.2. Roller pressure plate; 5.3. Side guide wheel; 5.4. Material tray; 5.5. Guardrail; 5.6. Roller. [Detailed Implementation]
[0016] As attached Figure 1 To be continued Figure 3 As shown, this utility model provides a height-adjustable loading trolley applicable to two-layer conveyor lines, including a frame 1, a lower fixing block 2, a lower adjusting rod 3, a lower plate 4, a non-powered roller assembly 5, an upper fixing block 6, an upper adjusting rod 7, and an upper plate 8. The lower and upper layers of the frame 1 are respectively provided with a lower plate 4 and an upper plate 8. The lower plate 4 passes through the lower adjusting rod 3 and is locked to the lower adjusting rod 3 with a nut. The lower adjusting rod 3 is fixedly connected to the frame 1 by the lower fixing block 2. The height of the lower plate 4 is adjusted by the lower adjusting rod 3. The upper plate 8 passes through the upper adjusting rod 7 and is locked to the upper adjusting rod 7 by a nut. The upper adjusting rod 7 is fixedly connected to the frame 1 by the upper fixing block 6. The height of the upper plate 8 is adjusted by the upper adjusting rod 7. Both the lower plate 4 and the upper plate 8 are equipped with non-powered roller assemblies 5. The rollers 5.6 of the non-powered roller assembly 5 are equipped with material trays 5.4. The rollers 5.6 on the upper plate 8 and the lower plate 4 move up and down by the upper adjusting rod 7 and the lower adjusting rod 3, respectively, thereby completing the docking with the upper and lower conveyor lines of the automatic assembly line.
[0017] The non-powered roller assembly 5 is connected to the lower plate 4 and the upper plate 8 by means of pin holes for positioning and screw locking, which not only ensures reliable connection but also further saves operation time. Specifically, the non-powered roller assembly 5 includes a roller fixing plate 5.1, a roller pressure plate 5.2, side guide wheels 5.3, guardrails 5.5, and rollers 5.6. The rollers 5.6 are arranged side by side, and both ends of the rollers 5.6 are locked to the roller fixing plate 5.1 by the roller pressure plate 5.2. A material tray 5.4 is placed on the rollers 5.6, and guardrails 5 are provided on both the left and right sides of the material tray 5.4. 5. Guardrail 5.5 is inserted into the fixing hole of roller fixing plate 5.1; side guide wheels 5.3 are distributed along the feeding direction of roller 5.6. The side guide wheels 5.3 are located on the outside of guardrail 5.5 and are rolledly connected to guardrail 5.5. The side guide wheels 5.3 are fixed to roller fixing plate 5.1 by threaded locking; the two ends of roller 5.6 are respectively placed in the groove of roller fixing plate 5.1. Roller pressure plate 5.2 is fixed to roller fixing plate 5.1 by pin hole positioning and screw locking. This structure design is simple and reliable, saving on-site operation time.
[0018] The unpowered roller assembly 5 on the upper plate 8 moves up and down by adjusting the upper adjusting rod 7, so that the upper surface of the roller 5.6 on the upper plate 8 is at the same height as the upper conveyor line of the automatic assembly line; the unpowered roller assembly 5 on the lower plate 4 moves up and down by adjusting the lower adjusting rod 3, so that the upper surface of the roller 5.6 on the lower plate 4 is at the same height as the lower conveyor line of the automatic assembly line. The lower fixing block 2 is connected to the lower layer of the frame 1 through screw holes, and the bottom end of the lower adjusting rod 3 is fixedly connected to the lower fixing block 2. The lower adjusting rod 3 is distributed at the four corners of the lower plate 4. The upper fixing block 6 is connected to the upper layer of the frame 1 through screw holes, and the bottom end of the upper adjusting rod 7 is fixedly connected to the upper fixing block 6. The upper adjusting rod 7 is distributed at the four corners of the upper plate 8.
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0020] The material cart of this utility model consists of a frame 1, a lower fixing block 2, a lower adjusting rod 3, a lower plate 4, a non-powered roller assembly 5, an upper fixing block 6, an upper adjusting rod 7, and an upper plate 8; the non-powered roller assembly 5 consists of a roller fixing plate 5.1, a roller pressure plate 5.2, a side guide wheel 5.3, a material tray 5.4, a guardrail 5.5, and a roller 5.6.
[0021] The lower fixing block 2 is connected to the frame 1 through screw holes. The lower adjusting rod 3 is connected to the lower fixing block 2. The lower plate 4 passes through the lower adjusting rod 3 and is locked onto the lower adjusting rod 3 by a nut. The non-powered roller assembly 5 is connected to the lower plate 4 by a pin hole and a screw lock. The upper fixing block 6 is connected to the frame 1 through screw holes. The upper adjusting rod 7 is connected to the upper fixing block 6. The upper plate 8 passes through the upper adjusting rod 7 and is locked onto the upper adjusting rod 7 by a nut. The non-powered roller assembly 5 is connected to the upper plate 8 by a pin hole and a screw lock.
[0022] Rollers 5.6 are placed in the grooves of roller fixing plate 5.1. Roller pressure plate 5.2 is fixed to roller fixing plate 5.1 by means of pin holes and screws, thereby locking roller 5.6 to roller fixing plate 5.1. Side guide wheel 5.3 is fixed to roller fixing plate 5.1 by means of threaded locking. Material tray 5.4 is placed on roller 5.6. Guardrail 5.5 is inserted into the fixing hole of roller fixing plate 5.1, thus forming non-powered roller assembly 5.
[0023] When placing the material tray 5.4 on the upper layer of the material cart, the worker first removes the guardrail 5.5, then places the material tray 5.4 on the roller 5.6 on the upper layer of the material cart, and then inserts the guardrail 5.5 back into its original position. This ensures that the material tray 5.4 will not slip off the material cart during transportation.
[0024] When the worker pushes the material cart to connect with the upper and lower layers of the automatic assembly equipment, the upper layer adjusts the upper adjustment rod 7 to move the non-powered roller assembly 5 up and down. When the upper surface of the roller 5.6 is at the same height as the upper conveyor line of the automatic assembly line, the nut of the upper adjustment rod 7 can be locked. The lower layer is operated in the same way. After this adjustment, the material cart is connected with the upper and lower conveyor lines of the automatic assembly line. Subsequent material loading and empty material tray collection no longer require the up and down repeated movement of the manual hydraulic cart.
[0025] When loading materials, the worker removes the upper guardrail 5.5 and pushes a stack of material trays 5.4 onto the upper conveyor of the automatic assembly line. When collecting material trays, the worker removes the lower guardrail 5.5 and pushes the empty material trays on the lower conveyor of the automatic assembly line onto the lower roller 5.6 of the material cart, then inserts the upper and lower guardrails 5.5.
[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.
[0027] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.
Claims
1. A height-adjustable feeding trolley applicable to two-layer conveying lines, characterized in that: The utility model provides a kind of automatic assembly line, including rack (1), lower layer fixed block (2), lower layer adjusting rod (3), lower layer plate (4), unpowered roller assembly (5), upper layer fixed block (6), upper layer adjusting rod (7) and upper layer plate (8), the lower layer and upper layer of the rack (1) are provided with lower layer plate (4) and upper layer plate (8) respectively, the lower layer plate (4) passes through lower layer adjusting rod (3) and is locked on lower layer adjusting rod (3) by nut, the lower layer adjusting rod (3) is fixedly connected on rack (1) by lower layer fixed block (2), the lower layer plate (4) is adjusted height by lower layer adjusting rod (3), the upper layer plate (8) passes through upper layer adjusting rod (7) and is locked on upper layer adjusting rod (7) by nut, the upper layer adjusting rod (7) is fixedly connected on rack (1) by upper layer fixed block (6), the upper layer plate (8) is adjusted height by upper layer adjusting rod (7), and the lower layer plate (4) and upper layer plate (8) are all placed with unpowered roller assembly (5), the roller (5.6) of the unpowered roller assembly (5) is placed with material tray (5.4), and the roller (5.6) on upper layer plate (8) and lower layer plate (4) moves up and down respectively through upper layer adjusting rod (7) and lower layer adjusting rod (3), to complete with the upper and lower layer conveying line of automatic assembly line butting.
2. The height-adjustable loading trolley suitable for two-layer conveying lines according to claim 1, characterized in that: The unpowered roller assembly (5) is connected with the lower layer plate (4) and the upper layer plate (8) by pin hole positioning and screw locking.
3. The height-adjustable loading trolley suitable for two-layer conveying lines according to claim 1 or 2, characterized in that: The unpowered roller assembly (5) includes roller fixing plate (5.1), roller pressing plate (5.2), guardrail (5.5) and roller (5.6), the rollers (5.6) are arranged side by side, both ends of the roller (5.6) are locked on the roller fixing plate (5.1) by the roller pressing plate (5.2), the material tray (5.4) is placed on the roller (5.6), the guardrail (5.5) is inserted into the fixing hole of the roller fixing plate (5.1), and the guardrail (5.5) is arranged on both sides of the material tray (5.4).
4. The height-adjustable loading trolley suitable for two-layer conveying lines according to claim 3, characterized in that: Both ends of the roller (5.6) are placed in the groove of the roller fixing plate (5.1), and the roller pressing plate (5.2) is fixed on the roller fixing plate (5.1) by pin hole positioning and screw locking.
5. The height-adjustable loading trolley suitable for two-layer conveying lines according to claim 3, characterized in that: The unpowered roller assembly (5) further includes side guide wheel (5.3), the side guide wheel (5.3) is distributed along the feeding direction of the roller (5.6), the side guide wheel (5.3) is arranged outside the guardrail (5.5) and is in rolling connection with the guardrail (5.5), and the side guide wheel (5.3) is fixed on the roller fixing plate (5.1) by screw locking.
6. The height-adjustable loading vehicle applicable to two-layer conveying lines according to claim 3, characterized in that: The unpowered roller assembly (5) on the upper layer plate (8) moves up and down by adjusting the upper layer adjusting rod (7), so that the upper surface of the roller (5.6) on the upper layer plate (8) is as high as the upper layer conveying line of the automatic assembly line; the unpowered roller assembly (5) on the lower layer plate (4) moves up and down by adjusting the lower layer adjusting rod (3), so that the upper surface of the roller (5.6) on the lower layer plate (4) is as high as the lower layer conveying line of the automatic assembly line.
7. The height adjustable loading vehicle suitable for two tier conveyor lines as claimed in claim 1 wherein: The lower fixed block (2) is connected with the lower layer of the rack (1) through screw holes, the bottom end of the lower adjusting rod (3) is fixedly connected with the lower fixed block (2), the lower adjusting rod (3) is distributed at four corners of the lower layer plate (4), the upper fixed block (6) is connected with the upper layer of the rack (1) through screw holes, the bottom end of the upper adjusting rod (7) is fixedly connected with the upper fixed block (6), and the upper adjusting rod (7) is distributed at four corners of the upper layer plate (8).