Foldable plastic tool car
By designing support frames, fixed shafts, rotary blocks, locking mechanisms and telescopic support mechanisms on the plastic tool truck, folding and stable support of the vehicle body is achieved, solving the problems of space occupied and easy to overturn in the existing plastic tool truck, and improving the convenience of use and scope of application.
Patent Information
- Application Number
- CN202421542632.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing plastic tool trucks cannot achieve folding function, resulting in a large amount of space occupies when not in use, and are easy to move or dump, making it inconvenient to use.
A foldable plastic tool truck is designed, adopting a structure such as a support frame, a fixed shaft, a rotary block, a locking mechanism and a telescopic support mechanism. By pulling the pulling handle and pushing the locking socket, the rotary block and a shrinking rod are fixed and adjusted, thereby achieving folding and supporting the vehicle body.
The folding function of the vehicle body is realized, providing stable support when not in use, avoiding movement or tilting, and reducing space occupation. When in use, the height can be adjusted according to the user's height, improving practicality and scope of application.
Smart Images
Figure CN222646054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transportation tools, in particular to a foldable plastic tool cart. Background Art
[0002] Most of the existing plastic tool carts cannot achieve a certain folding function. First, they will take up a lot of space when they are not in use, causing unnecessary waste of space. Secondly, they are easy to move or tip over in a free state, which is not conducive to use. For this reason, we propose a foldable plastic tool cart to solve the problems raised in the above background technology. Utility Model Content
[0003] The purpose of the utility model is to provide a foldable plastic tool cart to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable plastic tool cart, comprising a plastic body, wherein support frames are fixedly installed at the four corners of the bottom of the plastic body, a fixed shaft is fixedly connected between the front and rear sides of the inner wall of the support frame, a rotating block is rotatably connected to the fixed shaft, and a locking mechanism for fixing the rotating block is installed on the outer side of the support frame;
[0005] The bottom of the rotating block is fixedly connected with a moving wheel via a telescopic support mechanism.
[0006] Furthermore, the locking mechanism includes a shell sleeve, which is fixedly installed on the outside of the support frame. A pull handle is provided on the outside of the shell sleeve, and a pull rod is fixedly connected to the pull handle at the center position of one side of the shell sleeve. One end of the pull rod passes through the inside of the shell sleeve and is fixedly connected to a locking socket. A thrust spring is provided on the pull rod, and both ends of the thrust spring are respectively fixedly connected to the inner wall of the shell sleeve and the locking socket.
[0007] Furthermore, the telescopic support mechanism includes a sleeve, which is fixedly connected to the bottom of the rotating block, a retractable rod is slidably connected inside the sleeve, the bottom end of the retractable rod passes through the outside of the sleeve and is fixedly connected to the moving wheel, a screw sleeve is fixedly connected to the outside of the sleeve, a locking screw is threadedly connected to the screw sleeve, and a plurality of first locking holes that are compatible with the locking screws are equidistantly provided on the outside of the retractable rod.
[0008] Furthermore, an anti-slip sliding block is fixedly connected to the top of the left side of the retractable rod, and an anti-slip sliding groove adapted to the anti-slip sliding block is provided on the inner wall of the sleeve at a position corresponding to the anti-slip sliding block.
[0009] Furthermore, a first protrusion is fixedly connected to the left side of the anti-slip slide block, and a plurality of second protrusions are equidistantly installed on the inner wall of the anti-slip slide groove, and the distance between two adjacent second protrusions is the same as the distance between two adjacent first locking holes.
[0010] Furthermore, a second locking hole adapted to the locking socket is provided on the front side of the rotating block, and a push handle is fixedly connected to the left side of the plastic body.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] When the plastic vehicle body is in normal use, the handle is pulled outward, and the rotating block is rotated under the connection of the fixed shaft, so that the telescopic support mechanism and the moving wheel face downward. After the hand is loosened, the thrust spring pushes the locking socket to move to one side of the support frame, so that the locking socket is inserted into the second locking hole to fix the rotating block. According to the height of the worker using the trolley, the retractable rod can be moved in the sleeve under the connection of the anti-slip slide block and the anti-slip slide groove. When it is adjusted to a suitable position, the locking screw is rotated to insert the end of the screw into the corresponding first locking hole to fix the retractable rod. When the plastic body is not in use, just reverse the above steps, after the retractable rod is completely stored in the sleeve, the rotating block is rotated upward to realize the flat placement of the telescopic support mechanism and the moving wheels, and the support frames at the four corners of the bottom of the plastic body are used for stable support. The foldable plastic tool trolley has a reasonable structural design, is easy to use, and has a folding function. It can provide stable support when not in use, will not move or tip over, and also reduces space occupancy. The height can be adjusted according to the height of the worker when in use, and has high practicality and applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0014] Figure 2 It is a side structural cross-sectional view of the locking mechanism of the utility model;
[0015] Figure 3 This is a front structural cross-sectional view of the telescopic support mechanism of the utility model;
[0016] Figure 4 It is a top view of the structure section of the support frame, fixed shaft and rotating block of the utility model;
[0017] Figure 5 This is a schematic diagram of the main structure of the rotating block of the utility model.
[0018] In the figure: 1 plastic body, 2 support frame, 3 fixed shaft, 4 rotating block, 5 locking mechanism, 51 shell, 52 pull handle, 53 pull rod, 54 locking socket, 55 thrust spring, 6 telescopic support mechanism, 61 sleeve, 62 retractable rod, 63 screw sleeve, 64 locking screw, 65 first locking hole, 66 anti-slip slider, 67 anti-slip groove, 68 first convex point, 69 second convex point, 7 moving wheel, 8 second locking hole, 9 push handle. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-5 A foldable plastic tool cart comprises a plastic body 1, and support frames 2 are fixedly installed at the four corners of the bottom of the plastic body 1. A fixed shaft 3 is fixedly connected between the front and rear sides of the inner wall of the support frame 2, and a rotating block 4 is rotatably connected to the fixed shaft 3. A locking mechanism 5 for fixing the rotating block 4 is installed on the outer side of the support frame 2; the bottom of the rotating block 4 is fixedly connected to a moving wheel 7 through a telescopic support mechanism 6.
[0021] Specifically, the locking mechanism 5 includes a shell sleeve 51, which is fixedly installed on the outside of the support frame 2. A pull handle 52 is provided on the outside of the shell sleeve 51. A pull rod 53 is fixedly connected to the pull handle 52 at the center position of one side of the shell sleeve 51. One end of the pull rod 53 passes through the inside of the shell sleeve 51 and is fixedly connected to a locking socket 54. A thrust spring 55 is provided on the pull rod 53, and both ends of the thrust spring 55 are respectively fixedly connected to the inner wall of the shell sleeve 51 and the locking socket 54.
[0022] Specifically, the telescopic support mechanism 6 includes a sleeve 61, which is fixedly connected to the bottom of the rotating block 4. A retractable rod 62 is slidably connected inside the sleeve 61. The bottom end of the retractable rod 62 passes through the outside of the sleeve 61 and is fixedly connected to the moving wheel 7. A screw sleeve 63 is fixedly connected to the outside of the sleeve 61. A locking screw 64 is threadedly connected to the inner thread of the screw sleeve 63. A plurality of first locking holes 65 that are compatible with the locking screw 64 are equidistantly provided on the outside of the retractable rod 62.
[0023] Specifically, an anti-slip slider 66 is fixedly connected to the top of the left side of the retractable rod 62, and an anti-slip groove 67 adapted to the anti-slip slider 66 is opened on the inner wall of the sleeve 61. The anti-slip slider 66 and the anti-slip groove 67 can play an anti-slip limit role for the retractable rod 62, preventing the retractable rod 62 from falling out of the inside of the sleeve 61 when the support height is adjusted.
[0024] Specifically, a first protrusion 68 is fixedly connected to the left side of the anti-slip slider 66, and a plurality of second protrusions 69 are installed at equal distances on the inner wall of the anti-slip groove 67. The distance between two adjacent second protrusions 69 is the same as the distance between two adjacent first locking holes 65. By setting the first protrusion 68 and the second protrusion 69, when they move and collide with each other to produce a bouncing sound, it can indicate the moving distance that is just enough for the next first locking hole 65 to face the locking screw 64, thereby making it convenient for workers to control the position of the first locking hole 65 for locking and fixing.
[0025] Specifically, a second locking hole 8 compatible with the locking socket 54 is opened on the front of the rotating block 4, and the second locking hole 8 is used for the insertion and fixation of the locking socket 54. A push handle 9 is fixedly connected to the left side of the plastic body 1, and the push handle 9 is convenient for workers to push the plastic body 1.
[0026] The foldable plastic tool trolley has a reasonable structural design, is easy to use, and has a folding function. It can provide a stable support when not in use and will not move or tip over, while also reducing space occupancy. The height can be adjusted according to the height of the worker when in use, and has high practicality and applicability.
[0027] Working principle: When the plastic car body 1 is in normal use, the handle 52 is pulled outward, and the rotating block 4 is rotated under the connection of the fixed shaft 3, so that the telescopic support mechanism 6 and the moving wheel 7 are facing downward. After the hand is loosened, the thrust spring 55 will push the locking socket 54 to move to one side of the support frame 2, so that the locking socket 54 is inserted into the second locking hole 8 to fix the rotating block 4. According to the height of the worker using the trolley, the retractable rod 62 can be moved in the sleeve 61 under the connection of the anti-slip slider 66 and the anti-slip groove 67. When it is adjusted to a suitable position, the locking screw 64 is rotated to insert its end into the corresponding first locking hole 65 to fix the retractable rod 62. When the plastic car body 1 is not in use, it is only necessary to reverse the above steps. After the retractable rod 62 is completely received in the sleeve 61, the rotating block 4 is rotated upward to realize the flat placement of the telescopic support mechanism 6 and the moving wheel 7, and the support frame 2 at the four corners of the bottom of the plastic car body 1 can be used for stable support.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A foldable plastic tool cart, comprising a plastic body (1), characterized in that: A support frame (2) is fixedly installed at the four corners of the bottom of the plastic vehicle body (1); a fixed shaft (3) is fixedly connected between the front and rear sides of the inner wall of the support frame (2); a rotating block (4) is rotatably connected to the fixed shaft (3); and a locking mechanism (5) for fixing the rotating block (4) is installed on the outer side of the support frame (2); The bottom of the rotating block (4) is fixedly connected to a moving wheel (7) via a telescopic support mechanism (6).
2. A foldable plastic tool cart according to claim 1, characterized in that: The locking mechanism (5) comprises a shell (51), wherein the shell (51) is fixedly mounted on the outer side of the support frame (2), a pull handle (52) is provided on the outer side of the shell (51), a pull rod (53) is fixedly connected to the pull handle (52) at a central position close to one side of the shell (51), one end of the pull rod (53) passes through the inside of the shell (51) and is fixedly connected to a locking socket (54), a thrust spring (55) is sleeved on the pull rod (53), and two ends of the thrust spring (55) are respectively fixedly connected to the inner wall of the shell (51) and the locking socket (54).
3. A foldable plastic tool cart according to claim 2, characterized in that: The telescopic support mechanism (6) comprises a sleeve (61), the sleeve (61) is fixedly connected to the bottom of the rotating block (4), a retractable rod (62) is slidably connected inside the sleeve (61), the bottom end of the retractable rod (62) passes through the outside of the sleeve (61) and is fixedly connected to the moving wheel (7), a screw sleeve (63) is fixedly connected to the outside of the sleeve (61), a locking screw (64) is internally threadedly connected to the screw sleeve (63), and a plurality of first locking holes (65) adapted to the locking screw (64) are equidistantly provided on the outside of the retractable rod (62).
4. A foldable plastic tool cart according to claim 3, characterized in that: An anti-slip sliding block (66) is fixedly connected to the top of the left side of the retractable rod (62), and an anti-slip sliding groove (67) adapted to the anti-slip sliding block (66) is provided on the inner wall of the sleeve (61) at a position corresponding to the anti-slip sliding block (66).
5. A foldable plastic tool cart according to claim 4, characterized in that: A first protrusion (68) is fixedly connected to the left side of the anti-slip slide block (66), and a plurality of second protrusions (69) are installed at equal distances on the inner wall of the anti-slip slide groove (67), and the spacing between two adjacent second protrusions (69) is the same as the spacing between two adjacent first locking holes (65).
6. A foldable plastic tool cart according to claim 5, characterized in that: A second locking hole (8) adapted to a locking socket (54) is provided on the front of the rotating block (4), and a push handle (9) is fixedly connected to the left side of the plastic vehicle body (1).