Office cart

Abstract

The utility model relates to the field of office carts, and discloses an office cart which comprises two sets of bottom plates, universal wheels are arranged at the bottom ends of the bottom plates, a folding mechanism is arranged on the upper portions of the bottom plates, the folding mechanism comprises a folding assembly and a supporting assembly, the folding assembly comprises a fixing plate, and the fixing plate is arranged on the supporting assembly. The fixing plate is fixedly connected to the inner wall of the upper portion of the bottom plate, the inner walls of the front portion and the rear portion of the fixing plate are each rotationally connected with a plurality of sets of hinge rods, and the ends, away from the fixing plate, of every two adjacent sets of hinge rods are rotationally connected with connecting blocks. According to the folding cart, the folding mechanism and the bottom plate are used in cooperation, when the cart needs to be folded, the two sets of supporting plates are rotated, the limiting blocks on the lower sides of the supporting plates slide out from the outer sides of the connecting blocks, limiting on the connecting blocks is relieved, limiting on the multiple sets of hinge rods is relieved, the cart can be folded, the occupied space when the cart is not used is reduced, and the folding cart is convenient to use. And the use efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of office trolleys, and more particularly to an office trolley. Background Technology

[0002] In modern office environments, the needs for moving and storing office equipment and items are becoming increasingly diverse. As a common moving tool, the performance and design of office trolleys directly affect office efficiency and space utilization.

[0003] For some office spaces that require frequent movement or have limited storage space, some trolleys are large and heavy, making them difficult to move and store. Moreover, some existing trolleys take up a lot of space when not in use. The trolleys are fixed and installed with multiple sets of bolts, which means that disassembly and assembly in the office environment takes a lot of time and reduces efficiency. Therefore, an office trolley is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an office trolley, which aims to solve the problems in the prior art that "the trolley occupies a lot of space when it is not in use, and the trolley is fixed and installed by multiple sets of bolts, which reduces the efficiency of use when disassembling and assembling".

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an office trolley, including a base plate, with universal wheels at the bottom end of the base plate, two sets of which are provided on the base plate, and a folding mechanism on the upper part of the base plate. The folding mechanism includes a folding component and a support component. The folding component includes a fixed plate, which is fixedly connected to the inner wall of the upper part of the base plate. The front and rear inner walls of the fixed plate are rotatably connected to hinge rods, and multiple sets of hinge rods are provided. A connecting block is rotatably connected to the end of two adjacent sets of hinge rods away from the fixed plate. A hinge is fixedly connected to the outer side of the fixed plate, and a support plate is fixedly connected to the upper part of the hinge. The lower part of the support plate contacts the upper part of the fixed plate, and a limit block is fixedly connected to the lower part of the support plate. The limit block slides on the outer side of the connecting block.

[0006] As a further description of the above technical solution:

[0007] The support assembly includes a connector, which is fixedly connected to the outer side of the base plate and the fixed plate. A push rod is provided on the inner rear wall of the connector, and a support is slidably connected to the inner wall of the connector. The support contacts the outer side of the support plate.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the connector is rotatably connected to a threaded rod, which is threaded through and connected to the inner wall of the support. A crank handle is fixedly connected to the lower part of the support.

[0010] As a further description of the above technical solution:

[0011] The support member is configured in an L-shape.

[0012] As a further description of the above technical solution:

[0013] The upper part of the push rod is T-shaped.

[0014] As a further description of the above technical solution:

[0015] The portion of the hinge rod near the fixed plate is bent, and the bent part of the hinge rod is perpendicular to the fixed plate and contacts the inner side of the base plate.

[0016] As a further description of the above technical solution:

[0017] The upper part of the hinge rod and the connecting block is flush with the upper part of the fixing plate.

[0018] As a further description of the above technical solution:

[0019] The lower part of the limiting block near the connecting block is set as an inclined surface.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by using the folding mechanism and the base plate together, when the trolley needs to be folded, by rotating the two sets of support plates, the limiting block on the lower side of the support plate slides out from the outside of the connecting block, releasing the limiting of the connecting block, thereby releasing the limiting of multiple sets of hinge rods, so that the trolley can be folded, reducing the space occupied when idle and improving the efficiency of use.

[0022] 2. In this utility model, by using the support components and support plates together, when the trolley is unfolded, the crank handle is turned to drive the threaded rod to rotate, causing the support to move upward and squeeze and limit the edge of the support plate, thereby maintaining the stability of the two sets of support plates. At the same time, after the trolley is folded, the support components can support the support plate and prevent the support plate from shifting and rotating outward. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a bottom-view three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the support plate and the limiting block in this utility model;

[0026] Figure 4This is a three-dimensional structural diagram of the support member and the threaded rod in this utility model;

[0027] Figure 5 This is a three-dimensional structural folding diagram of the overall device in this utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Casters; 3. Folding assembly; 31. Fixing plate; 32. Hinge rod; 33. Connecting block; 34. Hinge; 35. Support plate; 36. Limiting block; 4. Support assembly; 41. Connector; 42. Push rod; 43. Support component; 44. Threaded rod; 45. Crank handle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an office trolley, including a base plate 1, which is U-shaped and can support and limit the hinge rods 32. The bottom end of the base plate 1 is provided with four sets of universal wheels 2, which are silent wheels to avoid generating excessive noise during movement and thus not disturbing the office environment. The base plate 1 has two sets of wheels. A folding mechanism is provided on the upper part of the base plate 1. The folding mechanism includes a folding component 3 and a support component 4. The folding component 3 includes a fixing plate 31, which is fixedly connected to the upper inner wall of the base plate 1. The fixing plate 31 provides an installation base for the hinge rods 32 and hinges 34, ensuring the stability of these components during use. The front and rear inner walls of the fixing plate 31 are rotatably connected to the hinge rods 32. Multiple sets of hinge rods 32 are provided. By changing the position of two adjacent sets of hinge rods 32, the distance between the two sets of base plates 1 can be adjusted, thereby folding the trolley, reducing space occupation, and improving usage efficiency.

[0032] Reference Figure 1 - Figure 3The portion of the hinge rod 32 near the fixed plate 31 is bent, and the bent part of the hinge rod 32 is perpendicular to the fixed plate 31 and contacts the inner side of the base plate 1. When the hinge rod 32 contacts the base plate 1, the hinge rod 32 is at its maximum extended extent and cooperates with the limiting block 36 to limit its movement. The ends of two adjacent sets of hinge rods 32 away from the fixed plate 31 are rotatably connected to a connecting block 33, which is used to connect the two adjacent sets of hinge rods 32 and cooperates with the limiting block 36 to limit the movement of the hinge rods 32. The outer side of the fixed plate 31 is fixed. A hinge 34 is connected to connect the support plate 35 and the fixed plate 31, allowing the support plate 35 to rotate. The upper part of the hinge 34 is fixedly connected to the support plate 35, providing a support plane for placing office items. The lower part of the support plate 35 contacts the upper part of the fixed plate 31. A limit block 36 is fixedly connected to the lower part of the support plate 35, which cooperates with the connecting block 33 to limit and release the hinge rod 32, thereby controlling the folding and unfolding states of the fixed plate 31 and the base plate 1. The limit block 36 slides on the outside of the connecting block 33.

[0033] Reference Figure 2 - Figure 4 The support assembly 4 includes a connector 41, which is fixedly connected to the outer side of the base plate 1 and the fixed plate 31, providing installation positions for components such as the push rod 42, the support member 43, and the threaded rod 44. The push rod 42 is provided on the inner rear wall of the connector 41. The upper part of the push rod 42 is T-shaped. When it is necessary to adjust the position of the support member 43, the push rod 42 can be pushed to assist the movement of the support member 43. The T-shape increases the force application area, making the pushing process more convenient and effortless. The support member 43 is slidably connected to the inner wall of the connector 41. The support member 43 contacts the outer side of the support plate 35. The support member 43 is L-shaped. When the trolley is unfolded, the threaded rod 44 is rotated by turning the handle 45, causing the support member 43 to move upward and squeeze and limit the edge of the support plate 35, thereby maintaining the stability of the two sets of support plates 35. After the trolley is folded, the support member 43 can support the support plate 35 after it rotates, preventing the support plate 35 from shifting and rotating outward.

[0034] Reference Figure 3 - Figure 5A threaded rod 44 is rotatably connected to the inner wall of the connector 41. The threaded rod 44 is threaded through and connected to the inner wall of the support member 43. By rotating the threaded rod 44, the support member 43 can move up and down within the connector 41 using the principle of threaded transmission, thereby precisely adjusting the support position and force of the support member 43 on the support plate 35. A crank handle 45 is fixedly connected to the lower part of the support member 43. By rotating the crank handle 45, the threaded rod 44 can be easily rotated, thereby controlling the lifting and lowering of the support member 43. The upper parts of the hinge rod 32 and the connecting block 33 are flush with the upper part of the fixed plate 31, which can increase the support stability of the support plate 35. The lower part of the limiting block 36 near the connecting block 33 is set as an inclined surface. The inclined surface can squeeze the connecting block 33, making the contact and disengagement between the limiting block 36 and the connecting block 33 smoother. Compared with a right angle, the inclined surface can reduce the friction and jamming between the two, making the folding action easier and faster, and improving the folding efficiency of the trolley.

[0035] Working principle: When the trolley is unfolded from the folded state, the two sets of base plates 1 are first pulled to the sides. At this time, the hinge rod 32 rotates around the fixed plate 31, and the included angle between adjacent hinge rods 32 gradually increases. The connecting block 33 moves accordingly. When the bent part of the hinge rod 32 contacts the inside of the base plate 1, the maximum unfolding degree is reached.

[0036] Next, rotate the support plate 35 so that the limiting block 36 at the bottom of the support plate 35 slides into the outside of the connecting block 33, limiting the connecting block 33 and fixing the position of the hinge rod 32, thus stabilizing the entire trolley structure initially. Then, rotate the crank handle 45 at the bottom of the support member 43. The crank handle 45 drives the threaded rod 44 to rotate. Since the threaded rod 44 is threadedly connected to the support member 43, the support member 43 will move upward along the inner wall of the connecting member 41 until the support member 43 contacts and presses the edge of the support plate 35, further stabilizing the support plate 35 and ensuring that the trolley will not shake when placing office supplies. At this time, the trolley can be used normally, improving the efficiency of use.

[0037] When the trolley needs to be folded, turn the handle 45 in the opposite direction to make the support member 43 move downward under the drive of the threaded rod 44, so as to release the compression limit on the support plate 35. Then rotate the two sets of support plates 35 to let the limiting block 36 at the bottom of the support plate 35 slide out from the outside of the connecting block 33, release the limit on the connecting block 33, and thus release the restriction on the hinge rod 32.

[0038] At this time, the two sets of base plates 1 are pushed closer to each other, the hinge rod 32 rotates around the fixed plate 31, the included angle between adjacent hinge rods 32 becomes smaller, realizing the folding of the trolley, reducing the space occupied when idle. During the folding process, the inclined surface of the lower part of the limit block 36 near the connecting block 33 can make the two separate more smoothly, reduce friction and jamming, and improve folding efficiency. After folding, the support member 43 can support the rotated support plate 35 to prevent it from shifting and rotating outward, and maintain the stability of the folded state.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An office trolley comprising a base plate (1), characterised in that: The bottom of the base plate (1) is provided with casters (2), and the base plate (1) is provided with two sets of casters. The upper part of the base plate (1) is provided with a folding mechanism, which includes a folding component (3) and a support component (4). The folding component (3) includes a fixing plate (31), which is fixedly connected to the upper inner wall of the base plate (1). The front and rear inner walls of the fixing plate (31) are rotatably connected with hinge rods (32), and the hinge rods (32) are provided with... Multiple sets of hinge rods (32) are rotatably connected to the end of the hinge rods (32) away from the fixed plate (31) with connecting blocks (33). A hinge (34) is fixedly connected to the outside of the fixed plate (31). A support plate (35) is fixedly connected to the upper part of the hinge (34). The lower part of the support plate (35) contacts the upper part of the fixed plate (31). A limit block (36) is fixedly connected to the lower part of the support plate (35). The limit block (36) slides on the outside of the connecting block (33).

2. A trolley according to claim 1, wherein: The support assembly (4) includes a connector (41), which is fixedly connected to the outside of the base plate (1) and the fixing plate (31). A push rod (42) is provided on the inner wall of the rear side of the connector (41), and a support member (43) is slidably connected to the inner wall of the connector (41). The support member (43) contacts the outside of the support plate (35).

3. A trolley according to claim 2, wherein: The inner wall of the connector (41) is rotatably connected to a threaded rod (44), which is threaded through and connected to the inner wall of the support (43). A crank (45) is fixedly connected to the lower part of the support (43).

4. The office cart of claim 2, wherein: The support member (43) is configured in an L shape.

5. The office cart of claim 2, wherein: The upper part of the push rod (42) is T-shaped.

6. An office trolley according to claim 1, characterized in that: The portion of the hinge rod (32) near the fixed plate (31) is bent, and the bent portion of the hinge rod (32) is perpendicular to the fixed plate (31) and contacts the inner side of the base plate (1).

7. The office cart of claim 1, wherein: The upper part of the hinge rod (32) and the connecting block (33) are flush with the upper part of the fixing plate (31).

8. The office cart of claim 1, wherein: The lower part of the limiting block (36) near the connecting block (33) is set as an inclined surface.

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