A municipal construction material transport cart

Abstract

The utility model relates to the field of municipal works, and disclose a kind of municipal construction material transport trolley, including rectangular car frame, the rectangular car frame is rectangular openwork frame, and top layer placing plate is fixedly installed in the top end of rectangular car frame, bottom layer placing plate is fixedly installed in the bottom end in rectangular car frame cavity, and the middle layer placing plate of liftable is arranged in rectangular car frame cavity;Limiting plate, the limiting plate is fixedly installed in the both sides of rectangular car frame in vertical state;Limiting component, the limiting component includes protective outer frame and two groups of rack, and drive unit is arranged in protective outer frame cavity.Limiting plate is installed in the both sides in rectangular car frame cavity, and limiting component is set to be used for the limiting clamping between middle layer placing plate and limiting plate, the height of middle layer placing plate is adjusted, so that the height of middle layer placing plate can be adjusted according to the size of construction material by the device, and the practicability of the device is higher compared with traditional non-adjustable design.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering, and in particular to a trolley for transporting municipal construction materials. Background Technology

[0002] Municipal construction refers to the building and installation engineering of urban infrastructure projects, including but not limited to roads, bridges, tunnels, rail transit, water supply and drainage systems, public greening, and public lighting systems. Municipal construction is an important part of urban development, which not only affects the quality of life of urban residents but also the sustainable development of the city. Municipal construction materials usually involve multiple professional fields, with a wide variety of materials and different dimensions of materials used in different fields.

[0003] For example, utility model application CN202420898470.3 discloses a bulk cargo transport trolley, including a movable base with casters installed at the bottom and two uprights at the rear end of the movable base; multiple stacked storage boxes, each storage box including a box body with an opening at the top and a fastening part for connecting adjacent boxes at the bottom; a bottom frame movably fitted onto the uprights, with a receiving groove on the upper surface of the bottom frame for accommodating a portion of the bottom storage box; a top cover fitted onto the uprights, with a limiting groove on the lower surface of the top cover for accommodating a portion of the upper storage box; and a locking assembly movably mounted on the uprights to restrict the movement of the top cover.

[0004] The aforementioned transport trolley maximizes space utilization through a stacked structure design. However, this structure has a significant design limitation—the fixed welding process for the spacing between layers prevents the layer height parameters from being dynamically adjusted according to actual transport needs. When the vertical dimensions of the material to be transported exceed the preset interlayer spacing, the material cannot be smoothly placed into the trolley frame, thus affecting overall loading efficiency and the smoothness of the work process.

[0005] Therefore, those skilled in the art have provided a municipal construction material transport trolley to solve the problems mentioned in the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a municipal construction material transport cart, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A municipal construction material transport trolley includes a rectangular frame, which is a rectangular hollow frame. A top placement plate is fixedly installed at the top of the rectangular frame, and a bottom placement plate is fixedly installed at the bottom of the rectangular frame cavity. Universal wheels are installed at the four corners of the bottom of the rectangular frame. A liftable middle placement plate is provided inside the rectangular frame cavity. Limiting plates are vertically fixedly installed on both sides of the rectangular frame, with two sets of limiting plates parallel to each other. A limiting assembly is located at the bottom of the middle placement plate and is used to limit and engage the middle placement plate with the limiting plates. The limiting component includes a protective outer frame fixedly installed at the bottom of the middle layer placement plate and two sets of racks that movably penetrate the protective outer frame. The two sets of racks are centrally symmetrical around the protective outer frame. Each set of racks has a fixedly connected post at its far end. The post and the limiting plate are in a movable engagement relationship. A transmission unit is provided inside the cavity of the protective outer frame to drive the rotation of the two sets of racks. The transmission unit includes a first meshing gear, a first rotating shaft, and a second rotating shaft. The second rotating shaft has a second meshing gear fixedly penetrating through it. The first meshing gear and the second meshing gear are movably meshed with the corresponding racks.

[0009] According to the municipal construction material transport trolley, both the front and rear ends of the rectangular frame are fixedly installed with vertical guide rods, the outer wall of the middle placement plate is fixedly installed with guide piles, the guide rods move through the corresponding guide piles, and a push handle is fixedly installed on one side of the outer wall of the rectangular frame.

[0010] According to the municipal construction material transport trolley, a limiting hole is opened through the left and right side walls of the limiting plate. The limiting holes are evenly distributed, and the insert at one end of the rack can be movably engaged in the corresponding limiting hole.

[0011] According to the municipal construction material transport trolley, the first rotating shaft and the second rotating shaft are both movably installed in the protective outer frame cavity. The first rotating shaft and the second rotating shaft are parallel to each other. The first rotating shaft is fixedly inserted through the first meshing gear. A knob is provided on one side of the outer wall of the protective outer frame. The shaft of the knob movably inserts through the protective outer frame and is fixedly connected to one end of the first rotating shaft.

[0012] According to the municipal construction material transport trolley, the first rotating shaft is also fixedly connected to a first transmission gear, and the second rotating shaft is also fixedly connected to a second transmission gear, with the first transmission gear and the second transmission gear engaging in a movable meshing.

[0013] According to the municipal construction material transport trolley, limit strips are fixedly installed on both the front and rear sides of the rack, and two sets of sliding grooves are fixedly installed inside the protective outer frame cavity at the corresponding limit strip positions, with the limit strips and corresponding sliding grooves engaging movably.

[0014] This utility model provides a municipal construction material transport trolley with the following advantages: A top-layer placement plate is fixedly installed at the top of a rectangular frame, a bottom-layer placement plate is fixedly installed at the bottom of the rectangular frame cavity, and a liftable middle-layer placement plate is provided inside the rectangular frame cavity, forming a stacked structure for the transport trolley. By installing limiting plates on both sides inside the rectangular frame cavity and setting limiting components to limit and engage the middle-layer placement plate with the limiting plates, the height of the middle-layer placement plate can be adjusted. This allows the device to adjust the height of the middle-layer placement plate according to the size of the construction materials, making it more practical than traditional non-adjustable designs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a municipal construction material transport trolley according to the present invention;

[0016] Figure 2 This is a front view schematic diagram of a municipal construction material transport trolley according to the present invention;

[0017] Figure 3 This is a schematic diagram showing the positional relationship between the middle layer placement plate, the limiting component, and the limiting plate of a municipal construction material transport trolley according to this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the limiting component of a municipal construction material transport trolley according to the present invention;

[0019] Figure 5 This is a top view schematic diagram of the limiting component of a municipal construction material transport trolley according to the present invention.

[0020] Legend:

[0021] 10. Rectangular frame; 11. Bottom placement plate; 12. Top placement plate; 13. Middle placement plate; 14. Push handle; 15. Limiting assembly; 16. Guide rod; 17. Guide post; 18. Limiting plate; 19. Limiting hole; 20. Rack; 21. Limiting strip; 22. Protective outer frame; 23. Slide groove; 24. Insert post; 25. First meshing gear; 26. First rotating shaft; 27. First transmission gear; 28. Second rotating shaft; 29. ​​Second transmission gear; 30. Second meshing gear; 31. Knob; 32. Caster wheel. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-5As shown, this utility model is a municipal construction material transport trolley, including a rectangular frame 10, which is a rectangular hollow frame. A top layer placement plate 12 is fixedly installed at the top of the rectangular frame 10, and a bottom layer placement plate 11 is fixedly installed at the bottom of the cavity of the rectangular frame 10. Universal wheels 32 are installed at the four corners of the bottom of the rectangular frame 10. A liftable middle layer placement plate 13 is provided in the cavity of the rectangular frame 10; limiting plates 18 are fixedly installed vertically on both sides of the rectangular frame 10, and the two sets of limiting plates 18 are parallel to each other; limiting components 15 are provided at the bottom of the middle layer placement plate 13 and are used to limit and engage the middle layer placement plate 13 with the limiting plates 18. The limiting component 15 includes a protective outer frame 22 fixedly installed at the bottom of the middle layer placement plate 13 and two sets of racks 20 that move through the protective outer frame 22. The two sets of racks 20 are centrally symmetrical around the protective outer frame 22. Each set of racks 20 has a fixedly connected insert post 24 at the ends that are far apart from each other. The insert post 24 and the limiting plate 18 are in a movable engagement relationship. A transmission unit is provided in the cavity of the protective outer frame 22 to drive the rotation of the two sets of racks 20. The transmission unit includes a first meshing gear 25, a first rotating shaft 26 and a second rotating shaft 28. The second rotating shaft 28 is fixedly connected to a second meshing gear 30. The first meshing gear 25 and the second meshing gear 30 are movably meshed with the corresponding racks 20.

[0024] Specifically, a top-layer placement plate 12 is fixedly installed at the top of a rectangular frame 10, a bottom-layer placement plate 11 is fixedly installed at the bottom of the cavity of the rectangular frame 10, and a liftable middle-layer placement plate 13 is provided inside the cavity of the rectangular frame 10, forming a stacked structure for the transport trolley. By installing limiting plates 18 on both sides inside the cavity of the rectangular frame 10, and setting a limiting component 15 to limit and engage the middle-layer placement plate 13 with the limiting plates 18, the height of the middle-layer placement plate 13 can be adjusted. This allows the device to adjust the height of the middle-layer placement plate 13 according to the size of the construction materials, making it more practical than traditional non-adjustable designs.

[0025] Among them, such as Figure 1-2 As shown, guide rods 16 in a vertical position are fixedly installed at both the front and rear ends of the rectangular frame 10 cavity, guide posts 17 are fixedly installed on the outer wall of the middle layer placement plate 13, and the guide rods 16 movably pass through the corresponding guide posts 17. A push handle 14 is fixedly installed on one side of the outer wall of the rectangular frame 10.

[0026] Specifically, guide rods 16 are fixedly installed at the front and rear ends of the rectangular frame 10 cavity, and guide posts 17 are fixedly installed on the outer wall of the middle layer placement plate 13. The guide rods 16 move through the corresponding guide posts 17, thereby limiting and guiding the lifting and lowering movement of the middle layer placement plate 13. A push handle 14 is provided to facilitate pushing the device.

[0027] Among them, such as Figure 3-4As shown, limit holes 19 are formed between the left and right side walls of the limiting plate 18. The limit holes 19 are evenly spaced. The insert 24 at one end of the rack 20 can be movably engaged in the corresponding limit hole 19. Limit strips 21 are fixedly installed on both the front and rear sides of the rack 20. Two sets of sliding grooves 23 are fixedly installed in the cavity of the protective frame 22 at the positions of the corresponding limit strips 21. The limit strips 21 and the corresponding sliding grooves 23 are movably engaged.

[0028] Specifically, by opening a limiting hole 19 through the limiting plate 18, the insert 24 at one end of the rack 20 can be movably engaged in the corresponding limiting hole 19, thereby limiting and fixing the middle layer placement plate 13 to the limiting plate 18. By fixing limiting strips 21 on both the front and rear sides of the rack 20, two sets of sliding grooves 23 are fixedly installed in the cavity of the protective frame 22 at the corresponding positions of the limiting strips 21. The limiting strips 21 and the corresponding sliding grooves 23 are movably engaged, thereby limiting and guiding the movement of the rack 20, ensuring that the rack 20 is always perpendicular to the limiting plate 18 during the movement.

[0029] Among them, such as Figure 5 As shown, both the first rotating shaft 26 and the second rotating shaft 28 are movably installed within the cavity of the protective outer frame 22. The first rotating shaft 26 and the second rotating shaft 28 are parallel to each other. The first rotating shaft 26 is fixedly inserted through the first meshing gear 25. A knob 31 is provided on one side of the outer wall of the protective outer frame 22. The shaft of the knob 31 movably passes through the protective outer frame 22 and is fixedly connected to one end of the first rotating shaft 26. The first rotating shaft 26 is also fixedly inserted through the first transmission gear 27, and the second rotating shaft 28 is also fixedly inserted through the second transmission gear 29. The first transmission gear 27 and the second transmission gear 29 are movably meshed.

[0030] Specifically, when the height of the middle layer placement plate 13 needs to be adjusted, the operator rotates the knob 31 by hand. The knob 31 drives the first rotating shaft 26 to rotate. The first rotating shaft 26 is fixedly connected through the first meshing gear 25 and the first transmission gear 27. The second rotating shaft 28 and the first rotating shaft 26 are both movably installed in the cavity of the protective outer frame 22. The second rotating shaft 28 is fixedly connected through the second meshing gear 30 and the second transmission gear 29. The first transmission gear 27 and the second transmission gear 29 are movably meshed. Then, the rotation of the first rotating shaft 26 drives the second transmission gear 29 and the second rotating shaft 28 to rotate through the first transmission gear 27. The second rotating shaft 28 drives the second meshing gear 30 to rotate. At this time, the rotation directions of the first meshing gear 25 and the second meshing gear 30 are opposite, so that the two sets of racks 20 move toward the corresponding limiting plate 18 until the insert 24 is movably engaged in the corresponding limiting hole 19.

[0031] The specific working principle of this utility model of a municipal construction material transport cart is as follows: When it is necessary to adjust the height of the middle layer placement plate 13, the operator rotates the knob 31 by hand. The knob 31 drives the first rotating shaft 26 to rotate. The first rotating shaft 26 is fixedly connected to the first meshing gear 25 and the first transmission gear 27. The second rotating shaft 28 and the first rotating shaft 26 are both movably installed in the cavity of the protective outer frame 22. The second rotating shaft 28 is fixedly connected to the second meshing gear 30 and the second transmission gear 29. The first transmission gear 27 and the second transmission gear 29 are movably meshed. Then, the first rotating shaft 26 rotates and drives the second rotating shaft 28 to rotate through the first transmission gear 27. The second rotating shaft 28 drives the second meshing gear 30 to rotate. At this time, the rotation directions of the first meshing gear 25 and the second meshing gear 30 are opposite, so that the two sets of racks 20 move toward the corresponding limiting plate 18 until the insert 24 is movably engaged in the corresponding limiting hole 19. This allows the device to adjust the height of the middle layer placement plate 13 according to the size of the construction material. Compared with the traditional non-adjustable design, this device is more practical.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A municipal construction material transport trolley, characterized in that, include: A rectangular frame (10) is a rectangular hollow frame. A top layer placement plate (12) is fixedly installed at the top of the rectangular frame (10). A bottom layer placement plate (11) is fixedly installed at the bottom of the rectangular frame (10). Universal wheels (32) are installed at the four corners of the bottom of the rectangular frame (10). A liftable middle layer placement plate (13) is provided inside the rectangular frame (10). Limiting plates (18) are fixedly installed vertically on both sides of the rectangular frame (10), and the two sets of limiting plates (18) are parallel to each other. Limiting component (15), the limiting component (15) is disposed at the bottom end of the middle layer placement plate (13) and is used to limit and engage the middle layer placement plate (13) and the limiting plate (18); The limiting component (15) includes a protective outer frame (22) fixedly installed at the bottom of the middle layer placement plate (13) and two sets of racks (20) that move through the protective outer frame (22). The two sets of racks (20) are centrally symmetrical around the protective outer frame (22). The ends of the two sets of racks (20) that are far apart from each other are fixedly connected to a pin (24). The pin (24) and the limiting plate (18) are in a movable engagement relationship. A transmission unit is provided in the cavity of the protective outer frame (22) to drive the two sets of racks (20) to rotate. The transmission unit includes a first meshing gear (25), a first rotating shaft (26), and a second rotating shaft (28). The second rotating shaft (28) is fixedly connected to the second meshing gear (30). The first meshing gear (25) and the second meshing gear (30) are movably meshed with the corresponding rack (20).

2. The municipal construction material transport trolley according to claim 1, characterized in that: The rectangular frame (10) has guide rods (16) fixedly installed at both the front and rear ends of the cavity, and guide posts (17) are fixedly installed on the outer wall of the middle layer placement plate (13). The guide rods (16) can be moved through the corresponding guide posts (17). A push handle (14) is fixedly installed on one side of the outer wall of the rectangular frame (10).

3. The municipal construction material transport trolley according to claim 1, characterized in that: Limiting holes (19) are provided between the left and right side walls of the limiting plate (18). The limiting holes (19) are evenly distributed. The insert (24) at one end of the rack (20) can be movably engaged in the corresponding limiting hole (19).

4. The municipal construction material transport trolley according to claim 1, characterized in that: The first rotating shaft (26) and the second rotating shaft (28) are both movably installed in the cavity of the protective frame (22). The first rotating shaft (26) and the second rotating shaft (28) are parallel to each other. The first rotating shaft (26) is fixedly inserted through the first meshing gear (25). A knob (31) is provided on one side of the outer wall of the protective frame (22). The shaft of the knob (31) movably inserts through the protective frame (22) and is fixedly connected to one end of the first rotating shaft (26).

5. The municipal construction material transport trolley according to claim 4, characterized in that: The first rotating shaft (26) is also fixedly connected to the first transmission gear (27), and the second rotating shaft (28) is also fixedly connected to the second transmission gear (29). The first transmission gear (27) and the second transmission gear (29) are in active meshing.

6. The municipal construction material transport trolley according to claim 1, characterized in that: Limiting strips (21) are fixedly installed on both the front and rear sides of the rack (20). Two sets of sliding grooves (23) are fixedly installed in the cavity of the protective frame (22) at the corresponding positions of the limiting strips (21). The limiting strips (21) and the corresponding sliding grooves (23) are movably engaged.

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