Plastic support with anti-toppling function

By using self-locking casters and a complex fixing mechanism, combined with auxiliary mechanisms, the contradiction between stability and convenience of plastic brackets is resolved, achieving improved stability and convenience of the brackets without increasing space or weight.

CN224301691UActive Publication Date: 2026-05-29WELL STAR IND LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WELL STAR IND LTD
Filing Date
2025-06-12
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

To improve stability, existing plastic brackets typically require increasing the base area or adding counterweights, which increases space usage or weight, affecting convenience and cost.

Method used

Employing self-locking casters and a complex fixing mechanism, the bracket achieves stable fixation through the cooperation of components such as slide rails, sliders, active racks, active gears, and driven gears. The length of the fixing rod can be quickly adjusted through an auxiliary mechanism to ensure stable support in multiple directions.

Benefits of technology

It improves the stability and convenience of the support without increasing its space and weight, prevents tipping, and adapts to the needs of different usage scenarios.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224301691U_ABST
    Figure CN224301691U_ABST
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Abstract

The utility model relates to the technical field of plastic support, and disclose a plastic support with anti -topple function, this plastic support with anti -topple function, including base, base bottom fixed mounting has self -locking universal wheel, base top center fixed mounting has main rod, main rod top fixed mounting has tray, be provided with fixed mechanism on the base, the fixed mechanism includes slide rail. This plastic support with anti -topple function, in order to make the support fixed more stable, by being provided with fixed mechanism, push the push block, cooperate slide rail, sliding block, drive the driving rack to move, further, cooperate the rotation of driving gear, rotating lever, driven gear, make the driven rack move down, and then drive the lock block to move down, thereby remove the restriction of lock block to first fixed rod and second fixed rod, rotate first fixed rod, pull out second fixed rod, make and ground contact, thereby make the support fixed more stable.
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Description

Technical Field

[0001] This utility model relates to the field of plastic support technology, specifically a plastic support with anti-tipping function. Background Technology

[0002] In modern industry and daily life, plastic stands are widely used in many fields due to their advantages such as low cost, light weight and easy processing and molding. In the field of electronic devices, plastic stands are used to support devices such as monitors and tablets, making it convenient for users to adjust the device angle and viewing position.

[0003] Some brackets improve stability by increasing the base area, but this increases the space occupied by the bracket and is difficult to apply in space-constrained scenarios. Others use the method of adding counterweights, which can enhance stability, but significantly increases the weight of the bracket itself, reduces its ease of movement, and also increases production costs.

[0004] In view of this, we propose a plastic bracket with anti-tipping function. Utility Model Content

[0005] The purpose of this invention is to provide a plastic bracket with anti-tipping function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic support with anti-tipping function includes a base, a self-locking caster wheel fixedly installed at the bottom end of the base, a main rod fixedly installed at the center of the top end of the base, a tray fixedly installed at the top of the main rod, and a fixing mechanism provided on the base, the fixing mechanism including:

[0008] The base has a slide rail fixedly installed on the inner wall at the bottom end. A slider is slidably installed inside the slide rail. An active rack is fixedly installed on the top of the slider. A push block is fixedly installed on one end of the active rack. The bottom end of the push block is slidably installed on the top of the slide rail. The other end of the active rack is fixedly installed on the inner side wall of the base through a first spring.

[0009] A rotating rod is rotatably mounted on both ends of the inner wall of the base via bearing components. One end of the rotating rod is fixedly mounted inside the drive gear, and the outer wall of the drive gear meshes with the outer wall of the drive gear. A driven gear is fixedly mounted at the center of the outer wall of the rotating rod, and the outer wall of the driven gear meshes with the outer wall of the driven rack. The outer wall of the driven rack is slidably mounted inside the top of the base, and a locking block is fixedly mounted at the top of the driven rack, with the inclined end of the locking block higher than the top of the base.

[0010] The first fixing rod is hinged inside the main rod. The bottom end of the first fixing rod slides against the top end of the base, and the movement trajectory of the first fixing rod intersects with the inclined surface of the top end of the locking block. The second fixing rod is slidably installed inside the first fixing rod.

[0011] In a further embodiment, the slide rail, slider, active rack, and first spring block are provided in two sets.

[0012] In a further embodiment, the rotating rod, the driving gear, the driven rack, the locking block, the first fixing rod, and the second fixing rod are provided in two sets, which improves the movement effect.

[0013] In a further embodiment, two sets of driven gears are provided on a single set of rotating rods.

[0014] In a further embodiment, an auxiliary mechanism is provided on the main rod. The auxiliary mechanism includes a second spring rod. The bottom of the main rod is fixedly installed on one end of the second spring rod, and the other end of the second spring rod is attached to the outer wall of the first fixed rod. A through hole is provided on the outer wall of the other side of the first fixed rod. A threaded block is threaded inside the second fixed rod. The threaded block is located inside the through hole. A fixing plate is rotatably installed on the arc-shaped outer wall of the threaded block. The outer wall of the fixing plate is attached to the outer wall of the first fixed rod.

[0015] In a further embodiment, the second spring rod is provided in multiple sets.

[0016] In a further embodiment, the diameter of the fixing plate is larger than the diameter of the through hole.

[0017] Compared with the prior art, this utility model provides a plastic bracket with anti-tipping function, which has the following beneficial effects:

[0018] 1. This plastic bracket with anti-tipping function has a fixing mechanism to make the bracket more stable. Pushing the push block, in conjunction with the slide rail and slider, drives the active rack to move. Furthermore, in conjunction with the rotation of the active gear, rotating rod and driven gear, the driven rack moves downward, which in turn drives the locking block to move downward, thereby releasing the locking block from restricting the first and second fixing rods. Rotating the first fixing rod pulls out the second fixing rod, so that it contacts the ground, thus making the bracket more stable.

[0019] 2. This plastic bracket with anti-tipping function allows for quick adjustment of the length of the fixing rod. By setting an auxiliary mechanism, when the first fixing rod is released from its restraint, the second spring rod, through its elastic force, pops out the first fixing rod and pulls the second fixing rod to a suitable length. Rotating the threaded rod causes the fixing plate to fit tightly against the first fixing rod, thereby achieving quick adjustment of the length of the fixing rod. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This utility model Figure 1 Enlarged structural diagram of region B in the middle;

[0025] Figure 6 This is a partial structural diagram of the present utility model.

[0026] Explanation of icon numbers:

[0027] 1. Base; 2. Self-locking casters; 3. Main rod; 4. Tray;

[0028] 5. Fixing mechanism; 51. Slide rail; 52. Slider; 53. Driving rack; 54. Push block; 55. First spring; 56. Rotating rod; 57. Driving gear; 58. Driven gear; 59. Driven rack; 510. Locking block; 511. First fixing rod; 512. Second fixing rod;

[0029] 6. Auxiliary mechanism; 61. Second spring rod; 62. Through hole; 63. Threaded block; 64. Fixing plate. 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] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0032] Please see Figures 1-6 This utility model provides a technical solution:

[0033] A plastic support with anti-tipping function includes a base 1, a self-locking caster wheel 2 fixedly installed at the bottom of the base 1, a main rod 3 fixedly installed at the center of the top of the base 1, and a tray 4 fixedly installed at the top of the main rod 3.

[0034] In one embodiment of this utility model, a fixing mechanism 5 is provided on the base 1. The fixing mechanism 5 includes a slide rail 51. The slide rail 51 is fixedly installed on the inner wall of the bottom end of the base 1. A slider 52 is slidably installed inside the slide rail 51. An active rack 53 is fixedly installed on the top of the slider 52. A push block 54 is fixedly installed on one end of the active rack 53. The bottom end of the push block 54 is slidably installed on the top of the slide rail 51. The other end of the active rack 53 is fixedly installed on the inner side wall of the base 1 through a first spring 55. Two sets of slide rail 51, slider 52, active rack 53 and first spring block 55 are provided. The two ends of the rotating rod 56 are rotatably installed on the inner wall of the base 1 through bearings. The outer wall of one end of the rotating rod 56 is fixedly installed inside the active gear 57. The outer wall of the active gear 57 meshes with the outer wall of the active gear 57. A driven gear 58 is fixedly installed at the center of the outer wall of the rotating rod 56. The outer wall of the driven gear 58 meshes with the outer wall of the driven rack 59. The outer wall of the driven rack 59 is slidably installed inside the top of the base 1. A locking block 510 is fixedly installed at the top of the driven rack 59. The inclined end of the locking block 510 is higher than the top of the base 1. A first fixing rod 511 is hinged inside the main rod 3. The bottom end of the first fixing rod 511 slides against the top of the base 1, and the movement trajectory of the first fixing rod 511 intersects with the inclined surface at the top of the locking block 510. A second fixing rod 512 is slidably installed inside the first fixing rod 511. The rotating rod 56, the driving gear 57, the driven rack 59, the locking block 510, the first fixing rod 511, and the second fixing rod 512 are provided in two sets. Two sets of driven gears 58 are provided on a single set of rotating rod 56.

[0035] In this embodiment, when enhanced stability of the support is required, the operator applies external force to push the push block 54. The bottom end of the push block 54 is tightly fitted with the top of the slide rail 51. Under the action of the pushing force, the push block 54 drives the slider 52 to slide linearly along the track inside the slide rail 51. Since the top of the slider 52 is fixedly connected to the active rack 53, the active rack 53 also moves synchronously. During the movement, one end of the active rack 53 gradually compresses the first spring 55. The first spring 55 has elastic deformation characteristics and continuously accumulates elastic potential energy when compressed. The teeth on the driving rack 53 mesh with the teeth on the outer wall of the driving gear 57. The linear motion of the driving rack 53 is converted into the rotational motion of the driving gear 57 around the axis of the rotating rod 56 through the meshing of the teeth. The two ends of the rotating rod 56 are mounted on the inner wall of the base 1 through bearing components. The rotation of the driving gear 57 drives the rotating rod 56 to rotate synchronously. The driven gear 58, which is fixedly installed at the center of the outer wall of the rotating rod 56, also rotates along with it. The driven gear 58 and the driven rack 59 also mesh with each other through the teeth, converting the circular motion of the rotating rod 56 back into the linear motion of the driven rack 59. Driven by the driven gear 58, the driven rack 59 moves downward along a pre-set track inside the top of the base 1. The locking block 510 mounted on the top of the driven rack 59 also descends. Once the locking block 510 descends, it releases the restriction on the first fixing rod 511 and the second fixing rod 512. Previously, the inclined end of the locking block 510 was higher than the top of the base 1, obstructing the first fixing rod 511. At this point, the operator manually applies force to rotate the first fixing rod 511, causing it to rotate around the hinge point with the main rod 3, deviating from its initial position. Then… The second fixing rod 512 is pulled out from inside the first fixing rod 511. The second fixing rod 512 and the first fixing rod 511 adopt a sliding fit design to ensure a smooth pulling process. As the second fixing rod 512 is pulled out until its bottom contacts the ground, the first fixing rod 511 and the second fixing rod 512 together form an additional support structure. This structure works in conjunction with the fixing effect formed after the locking block 510 descends, providing support and constraint to the bracket from multiple directions. This significantly enhances the overall stability of the bracket and effectively prevents the bracket from tipping over under various external forces.

[0036] In one embodiment of this utility model, an auxiliary mechanism 6 is provided on the main rod 3. The auxiliary mechanism 6 includes a second spring rod 61. The bottom of the main rod 3 is fixedly installed on one end of the second spring rod 61, and the other end of the second spring rod 61 is attached to the outer wall of the first fixed rod 511. Multiple sets of second spring rods 61 are provided. A through hole 62 is opened on the outer wall of the other side of the first fixed rod 511. A threaded block 63 is threadedly engaged inside the second fixed rod 512. The threaded block 63 is located inside the through hole 62. A fixing piece 64 is rotatably installed on the arc-shaped outer wall of the threaded block 63. The outer wall of the fixing piece 64 is attached to the outer wall of the first fixed rod 511. The cross-sectional diameter of the fixing piece 64 is larger than the cross-sectional diameter of the through hole 62.

[0037] In this embodiment, when the first fixing rod 511 releases the restriction of the locking block 510, the multiple sets of second spring rods 61 pre-installed at the bottom of the main rod 3 immediately come into play. One end of the second spring rod 61 is firmly fixed to the bottom of the main rod 3, and the other end is tightly attached to the outer wall of the first fixing rod 511. The second spring rod 61 has a certain amount of compression in its natural state. At this time, it releases elastic potential energy and generates an outward elastic force. Under the action of this elastic force, the second spring rod 61 pushes the first fixing rod 511 to pop out quickly. The first fixing rod 511 rotates around the hinge point with the main rod 3 and moves towards the load. At the same time as the first fixing rod 511 pops out, the operator pulls the second fixing rod 512 out from inside the first fixing rod 511. The second fixing rod 512 is provided with a threaded block 63 inside. The side wall of the first fixing rod 511 is provided with a through hole 62. The threaded block 63 and the through hole 62 are connected. The two fixing rods are connected by a threaded engagement. By rotating the threaded block 63, the extension length of the second fixing rod 512 within the first fixing rod 511 can be adjusted. After the second fixing rod 512 is adjusted to the required length suitable for the size of the load, the fixing plate 64 is rotated. The fixing plate 64 is rotatably mounted on the threaded block 63 through its arc-shaped outer wall, and its cross-sectional diameter is larger than that of the through hole 62. Rotating the fixing plate 64 makes it fit tightly against the outer wall of the first fixing rod 511, thereby locking the position of the threaded block 63 and firmly fixing the length of the second fixing rod 512. The entire adjustment process achieves rapid and precise adjustment of the length of the fixing rod, ensuring that the first fixing rod 511 and the second fixing rod 512 can provide stable support for the load from the appropriate angle and position according to the actual situation of the load, effectively preventing the load from shaking or slipping during transportation or storage.

[0038] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The standard parts are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. It should be noted that the above electrical components are all prior art products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structure of the hydraulic drive structure appears in this application.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic support with anti-tipping function, comprising a base (1), wherein a self-locking caster wheel (2) is fixedly installed at the bottom end of the base (1), a main rod (3) is fixedly installed at the center of the top end of the base (1), and a tray (4) is fixedly installed at the top of the main rod (3), characterized in that: A fixing mechanism (5) is provided on the base (1), and the fixing mechanism (5) includes: The slide rail (51) is fixedly installed on the inner wall of the bottom end of the base (1). The slide rail (51) is slidably installed inside the slide rail (51). The top of the slide rail (52) is fixedly installed with an active rack (53). One end of the active rack (53) is fixedly installed with a push block (54). The bottom end of the push block (54) is slidably installed on the top of the slide rail (51). The other end of the active rack (53) is fixedly installed on the inner side wall of the base (1) through the first spring (55). Rotating rod (56), the two ends of the rotating rod (56) are rotatably installed on the inner wall of the base (1) through bearing components. The outer wall of one end of the rotating rod (56) is fixedly installed inside the drive gear (57). The outer wall of the drive gear (57) meshes with the outer wall of the drive gear (57). A driven gear (58) is fixedly installed at the center of the outer wall of the rotating rod (56). The outer wall of the driven gear (58) meshes with the outer wall of the driven rack (59). The outer wall of the driven rack (59) is slidably installed inside the top of the base (1). A locking block (510) is fixedly installed at the top of the driven rack (59). The inclined end of the locking block (510) is higher than the top of the base (1). The first fixing rod (511) is hinged inside the main rod (3). The bottom end of the first fixing rod (511) slides against the top end of the base (1), and the movement trajectory of the first fixing rod (511) intersects with the top inclined surface of the locking block (510). The second fixing rod (512) is slidably installed inside the first fixing rod (511).

2. A plastic bracket with anti-tipping function according to claim 1, characterized in that: The slide rail (51), slider (52), active rack (53) and first spring (55) are provided in two sets.

3. A plastic bracket with anti-tipping function according to claim 1, characterized in that: The rotating rod (56), the driving gear (57), the driven rack (59), the locking block (510), the first fixing rod (511), and the second fixing rod (512) are provided in two sets.

4. A plastic bracket with anti-tipping function according to claim 1, characterized in that: Two sets of driven gears (58) are provided on the single set of rotating rods (56).

5. A plastic bracket with anti-tipping function according to claim 1, characterized in that: An auxiliary mechanism (6) is provided on the main rod (3). The auxiliary mechanism (6) includes a second spring rod (61). The bottom of the main rod (3) is fixedly installed at one end of the second spring rod (61). The other end of the second spring rod (61) is attached to the outer wall of the first fixed rod (511). A through hole (62) is opened on the outer wall of the other side of the first fixed rod (511). A threaded block (63) is threaded inside the second fixed rod (512). The threaded block (63) is located inside the through hole (62). A fixing plate (64) is rotatably installed on the arc-shaped outer wall of the threaded block (63). The outer wall of the fixing plate (64) is attached to the outer wall of the first fixed rod (511).

6. A plastic bracket with anti-tipping function according to claim 5, characterized in that: The second spring rod (61) is provided in multiple sets.

7. A plastic bracket with anti-tipping function according to claim 5, characterized in that: The diameter of the fixed piece (64) is larger than the diameter of the through hole (62).