A castor bracket integrally formed by injection molding

Abstract

The utility model discloses an injection molding integral forming trolley support relates to trolley support field. The injection molding integral forming trolley support includes square shell part and sets up the arc shell part and axle body part on square shell part, the arc shell part is set up and is used for the wheel axle groove of trolley axle spacing, axle body part is used for installing support horizontal steering axle body. The injection molding integral forming trolley support adopts integral forming design, reduces the quantity of parts and assembly process, first bearing limiting portion and second bearing limiting portion form double rotation limit, and stress is stable, and horizontal steering stress is better, and the design of inner reinforcing rib and mounting groove is convenient for installing brake structure, and subsequent maintenance is convenient, arc shell reinforcing rib, reinforcing rib board and annular reinforcing rib etc. Structure strengthens the overall strength of trolley support, improves its service life.

Description

Technical Field

[0001] This utility model relates to the field of caster bracket technology, specifically to an injection-molded caster bracket. Background Technology

[0002] In existing caster bracket designs, traditional caster brackets mostly adopt a split structure, which is assembled from multiple parts.

[0003] Traditional split-type structures increase assembly steps in the production process. Furthermore, due to gaps between parts, the caster bracket is prone to loosening and deformation under significant external forces or frequent use, affecting its stability and lifespan. Additionally, most designs use only a single-bearing limit structure for rotational positioning. A single-bearing caster experiences uneven force during horizontal rotation, leading to uneven rotation and jamming. The traditional split-type design also makes the installation and maintenance of the braking mechanism cumbersome, increasing usage and maintenance costs. To address these shortcomings, this invention provides a one-piece injection-molded caster bracket to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an injection-molded caster bracket. The one-piece molding design reduces the number of parts and assembly steps. The first and second bearing limiting parts form a double rotational limiting mechanism, ensuring stable force distribution and better horizontal steering force. The design of the inner reinforcing ribs and mounting grooves facilitates the installation of the brake structure and subsequent maintenance. The arc-shaped outer shell reinforcing ribs, reinforcing plates, and annular reinforcing ribs enhance the overall strength of the caster bracket and improve its service life.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an injection-molded caster bracket, comprising a square outer shell portion and an arc-shaped outer shell portion and a shaft portion disposed on the square outer shell portion, wherein the arc-shaped outer shell portion is provided with a wheel axle groove for limiting the caster axle, and the shaft portion is used to install the bracket's horizontal steering shaft portion;

[0006] The square outer shell is provided with a brake groove, the inside of the square outer shell is provided with an inner reinforcing rib, a second bearing limiting part is formed between the inner reinforcing rib and the inner top wall of the square outer shell, and a first bearing limiting part is provided at the top of the shaft body.

[0007] The inner reinforcing rib is provided with a mounting groove, which is used to install the brake structure.

[0008] Preferably, the arc-shaped outer shell portion is symmetrically distributed on both sides of the second bearing limiting portion, and an arc-shaped outer shell reinforcing rib is provided between the arc-shaped outer shell portion and the square outer shell portion.

[0009] Preferably, a reinforcing rib is provided between the two sets of arc-shaped outer shell reinforcing ribs.

[0010] Preferably, the side of the arc-shaped outer shell is provided with multiple sets of annular reinforcing ribs.

[0011] Preferably, the mounting groove is aligned with the brake groove, and the mounting groove has a first fixing hole inside.

[0012] Preferably, the second bearing limiting part has a second fixing hole inside.

[0013] Preferably, the square outer shell, the arc-shaped outer shell, the shaft, the inner reinforcing rib, and the arc-shaped outer shell reinforcing rib are integrally molded.

[0014] Its beneficial effects are as follows:

[0015] This injection-molded caster bracket features a one-piece design, reducing the number of parts and assembly steps. The first and second bearing limiting parts form a double rotation limiting mechanism, ensuring stable force distribution and better horizontal steering force. The design of the inner reinforcing ribs and mounting grooves facilitates the installation of the brake structure and makes subsequent maintenance convenient. The arc-shaped outer shell reinforcing ribs, reinforcing plates, and ring-shaped reinforcing ribs enhance the overall strength of the caster bracket and improve its service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the arc-shaped outer shell reinforcing rib of this utility model.

[0019] In the figure: 1. Square outer shell; 11. Brake groove; 2. Arc-shaped outer shell; 21. Wheel axle groove; 22. Annular reinforcing rib; 3. Shaft body; 31. First bearing limiting part; 4. Inner reinforcing rib; 41. Mounting groove; 42. First fixing hole; 5. Second bearing limiting part; 51. Second fixing hole; 6. Arc-shaped outer shell reinforcing rib; 61. Reinforcing rib plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] This utility model discloses an injection-molded one-piece caster bracket, according to the attached... Figure 1-2 As shown, it includes a square outer shell 1 and an arc-shaped outer shell 2 and a shaft part 3 disposed on the square outer shell 1. The arc-shaped outer shell 2 is provided with a wheel axle groove 21 for limiting the caster axle. The shaft part 3 is used to install the bracket horizontal steering shaft.

[0023] A brake groove 11 is provided on the square outer shell 1. An inner reinforcing rib 4 is provided inside the square outer shell 1. A second bearing limiting part 5 is formed between the inner reinforcing rib 4 and the inner top wall of the square outer shell 1. A first bearing limiting part 31 is provided on the top of the shaft part 3. The first bearing limiting part 31 is used to fix the horizontal steering shaft of the bracket with glue. The second bearing limiting part 5 is used to install the second set of bearings and to limit the horizontal steering shaft of the bracket to rotate twice.

[0024] The inner reinforcing rib 4 is provided with a mounting groove 41 for installing the brake structure. The first bearing limiting part 31 and the second bearing limiting part 5 form a double rotation limiting between the caster bracket and the external horizontal steering shaft, which stabilizes the force and improves the force of horizontal steering. At the same time, the design of the inner reinforcing rib 4 and the mounting groove 41 facilitates the installation of the brake structure and makes the subsequent maintenance of the brake structure convenient.

[0025] According to the appendix Figure 2 As shown, furthermore, the arc-shaped outer shell portion 2 is symmetrically distributed on both sides of the second bearing limiting portion 5, and an arc-shaped outer shell reinforcing rib 6 is provided between the arc-shaped outer shell portion 2 and the square outer shell portion 1. The arc-shaped outer shell reinforcing rib 6 can enhance the connection strength between the arc-shaped outer shell portion 2 and the square outer shell portion 1, and improve the overall stability of the caster bracket.

[0026] According to the appendix Figure 2 As shown, furthermore, a reinforcing rib plate 61 is provided between the two sets of arc-shaped outer shell reinforcing ribs 6. The reinforcing rib plate 61 further enhances the connection strength between the arc-shaped outer shell reinforcing ribs 6, making the caster bracket more stable and less prone to deformation when subjected to external forces.

[0027] According to the appendix Figure 1As shown, the curved outer shell 2 is further provided with multiple sets of annular reinforcing ribs 22 on its side. The annular reinforcing ribs 22 can increase the strength of the side of the curved outer shell 2, improve its impact resistance, and extend the service life of the caster bracket.

[0028] According to the appendix Figure 1 As shown, the mounting groove 41 is aligned with the brake groove 11, and a first fixing hole 42 is provided inside the mounting groove 41. The alignment design facilitates the installation and positioning of the brake structure, and the first fixing hole 42 can be used to fix the brake structure, ensuring that the brake structure is securely installed.

[0029] According to the appendix Figure 1 As shown, the second bearing limiting part 5 further includes a second fixing hole 51 inside. The second fixing hole 51 can be used to fix components that cooperate with the second bearing limiting part 5, further enhancing the stability of the structure.

[0030] According to the appendix Figure 1 As shown, the square outer shell 1, the arc-shaped outer shell 2, the shaft 3, the inner reinforcing rib 4, and the arc-shaped outer shell reinforcing rib 6 are specifically designed as a single piece. This single-piece design reduces the number of parts and assembly steps, improving production efficiency, while also making the overall structure of the caster bracket more compact and stronger.

[0031] The working principle of this injection-molded caster bracket is as follows: The external horizontal steering shaft is double-rotated and limited by the first bearing limiting part 31 and the second bearing limiting part 5, ensuring the stability of the caster bracket under force during horizontal steering. The brake structure is installed in the mounting groove 41 and cooperates with the brake groove 11 to achieve the braking function. The arc-shaped outer shell reinforcing rib 6, the reinforcing rib plate 61, and the annular reinforcing rib 22 enhance the overall strength of the caster bracket, enabling it to withstand greater external forces.

[0032] The steps for using this injection-molded caster bracket are as follows: Place the rollers between the two sets of arc-shaped outer shells 2 and pass them through the corresponding shafts. Use pins for installation and limiting, and fix the two sets of bearings to the first bearing limiting part 31 and the second bearing limiting part 5 respectively to achieve installation of the external horizontal steering shaft. Install the brake structure in the mounting groove 41 and fix it through the first fixing hole 42. During use, the braking function is achieved by operating the brake structure in conjunction with the brake groove 11.

[0033] The advantages of this injection-molded caster bracket are as follows: the one-piece molding design reduces the number of parts and assembly steps; the first bearing limiting part 31 and the second bearing limiting part 5 form a double rotation limiting, which stabilizes the force and improves the force during horizontal turning; the design of the inner reinforcing rib 4 and the mounting groove 41 facilitates the installation of the brake structure and makes subsequent maintenance convenient; the arc-shaped outer shell reinforcing rib 6, the reinforcing rib plate 61, and the ring-shaped reinforcing rib 22 enhance the overall strength of the caster bracket and improve its service life.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A one-piece injection molded caster bracket, comprising a square outer shell portion (1) and an arc-shaped outer shell portion (2) and a shaft portion (3) disposed on the square outer shell portion (1), characterized in that: The arc-shaped outer shell (2) is provided with a wheel axle groove (21) for limiting the caster axle, and the shaft body (3) is used to install the bracket horizontal steering shaft; The square outer shell (1) is provided with a brake groove (11), the inside of the square outer shell (1) is provided with an inner reinforcing rib (4), the inner reinforcing rib (4) and the inner top wall of the square outer shell (1) form a second bearing limiting part (5), and the top of the shaft part (3) is provided with a first bearing limiting part (31). The inner reinforcing rib (4) is provided with a mounting groove (41), which is used to install the brake structure.

2. The injection-molded caster bracket according to claim 1, characterized in that, The arc-shaped outer shell portion (2) is symmetrically distributed on both sides of the second bearing limiting portion (5), and an arc-shaped outer shell reinforcing rib (6) is provided between the arc-shaped outer shell portion (2) and the square outer shell portion (1).

3. The injection-molded caster bracket according to claim 2, characterized in that, A reinforcing rib plate (61) is provided between the two sets of arc-shaped outer shell reinforcing ribs (6).

4. The injection-molded caster bracket according to claim 1, characterized in that, The side of the arc-shaped outer shell (2) is provided with multiple sets of annular reinforcing ribs (22).

5. The injection-molded caster bracket according to claim 1, characterized in that, The mounting groove (41) is aligned with the brake groove (11), and the mounting groove (41) is provided with a first fixing hole (42).

6. The injection-molded one-piece caster bracket according to claim 1, characterized in that, The second bearing limiting part (5) has a second fixing hole (51) inside.

7. The injection-molded one-piece caster bracket according to claim 3, characterized in that, The square outer shell (1), the arc-shaped outer shell (2), the shaft (3), the inner reinforcing rib (4), and the arc-shaped outer shell reinforcing rib (6) are integrally molded.

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