Arc-shaped assembly structure for end cover

The end cap design with an arc-shaped assembly structure solves the problems of low connection efficiency and insufficient stability of motor end caps, enabling rapid installation, reducing costs, improving vibration resistance, and enhancing equipment maintenance efficiency.

CN224218253UActive Publication Date: 2026-05-08SHANGHAI TALEN PLASTIC IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TALEN PLASTIC IND
Filing Date
2025-06-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing connection between the motor end cover and the motor body or external components suffers from low assembly efficiency, insufficient connection stability, and complex structure with high cost, which significantly affects the safety and cost of equipment operation, especially in batch maintenance scenarios.

Method used

It adopts an arc-shaped assembly structure, including the end cap body, arc-shaped groove and arc-shaped buckle. It can be quickly installed and disassembled through the rotation structure and buckle structure, eliminating the need for traditional standard parts such as bolts. The injection molding process improves the structural stability and strength.

Benefits of technology

It enables rapid installation and disassembly, reduces assembly time and material costs, improves the vibration resistance and structural stability of the connection, and enhances equipment maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224218253U_ABST
Patent Text Reader

Abstract

The utility model discloses an arc-shaped assembly structure for an end cover, which comprises an end cover main body, an arc-shaped clamping groove and an arc-shaped buckle, the end cover main body is arranged at the tail end of a motor through a sleeve opening and an L-shaped hook, the arc-shaped clamping groove is clamped and pre-fixed with a steel pipe of an electric bed, the assembly is convenient, and the arc-shaped buckle realizes quick locking through a rotating structure and a buckle structure. The structure adopts an arc-shaped design and injection molding integrated molding, has the advantages of being efficient in assembly, resistant to vibration, low in cost and the like, and is suitable for motor scenes needing frequent maintenance such as an electric bed and the like.
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Description

Technical Field

[0001] This utility model relates to the field of motor accessories technology, specifically to an arc-shaped assembly structure for end caps. Background Technology

[0002] In existing technologies, the connection between the motor end cover and the motor body or external components (such as the steel pipe of an electric bed) is usually achieved using traditional fasteners such as bolts and nuts. This connection method has the following drawbacks:

[0003] Low assembly efficiency: Each bolt needs to be tightened individually, and the installation and disassembly are time-consuming and labor-intensive, especially in batch maintenance scenarios where the cost is significant.

[0004] Insufficient connection stability: When the electric bed is bent or the motor vibrates, traditional rigid connections are prone to loosening due to stress concentration, which affects the safety of equipment operation.

[0005] Complex structure and high cost: Additional standard parts such as bolts and washers are required, which increases material costs and assembly steps.

[0006] Therefore, there is an urgent need for an end cap assembly structure that can be quickly installed, is vibration resistant, and is inexpensive. Utility Model Content

[0007] The purpose of this utility model is to provide an arc-shaped assembly structure for end caps, which simplifies the motor installation and disassembly process by optimizing the mechanical connection method, reducing assembly time and labor costs, while improving the vibration resistance and structural stability of the connection parts.

[0008] An arc-shaped assembly structure for an end cap, comprising:

[0009] The end cap body has a sleeve at its lower end, and the end cap body is installed at the tail end of the motor through the sleeve.

[0010] An arc-shaped slot is integrally formed on the upper end of the end cap body. The arc-shaped slot opens upward and is used to engage with the steel pipe of the electric bed to achieve pre-fixation.

[0011] The arc-shaped buckle has one end rotatably mounted on the arc-shaped slot via a rotating structure, and the other end is fixedly assembled onto the steel pipe of the electric bed through a buckle structure that cooperates with the arc-shaped slot.

[0012] As a preferred embodiment of this utility model, the rotating structure includes a shaft slot and a rotating shaft. The shaft slot is integrally formed on the outer end face of the left side opening of the arc-shaped slot, and the rotating shaft is fixedly disposed at the left end of the arc-shaped buckle. The rotating shaft is rotatably installed in the shaft slot.

[0013] As a preferred embodiment of this utility model, the buckle structure includes a buckle post and a C-shaped buckle groove. The buckle post is fixedly installed at the right end of the arc-shaped buckle, and the C-shaped buckle groove is located on the outer end face of the right side opening of the arc-shaped buckle groove. The buckle post can be engaged in the C-shaped buckle groove by rotating the arc-shaped buckle to achieve fixation.

[0014] As a preferred embodiment of this utility model, the right end of the arc-shaped buckle is integrally formed with a pressure handle that is easy to hold.

[0015] As a preferred embodiment of this utility model, L-shaped hooks are equidistantly installed on the outer circumferential surface of the end cover body. The L-shaped hooks are used to engage and fix with the tail end of the motor, and eight L-shaped hooks are equidistantly arranged.

[0016] As a preferred embodiment of this utility model, reinforcing ribs are provided between the rotating structure and the end cap body, and between the snap-fit ​​structure and the end cap body to increase structural strength.

[0017] As a preferred embodiment of this utility model, the arc-shaped groove and the end cap body are integrally formed by injection molding, and the arc-shaped buckle is integrally formed by injection molding.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] 1. Efficient assembly: The snap-fit ​​structure with "press-rotate fastening" saves 80% of assembly time compared to bolt connections and supports one-handed operation;

[0020] 2. Stable and reliable: The arc-shaped design disperses stress and buffers vibration and impact through curved surface deformation, adapting to the bending conditions of the electric bed. The limit slot is pre-fixed for easy installation.

[0021] 3. Cost optimization: By eliminating bolts and washers, the material cost per unit is reduced by 40%, and the one-piece injection molding process simplifies the production process;

[0022] 4. Easy maintenance: It can be quickly disassembled without tools, which significantly improves the efficiency of equipment maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the open state of the arc-shaped buckle of this utility model;

[0025] Figure 3 This is a view of the bottom of the end cap of this utility model.

[0026] Figure 4 This is a schematic diagram of the overall structure assembly state of this utility model;

[0027] Figure 5 This is a cross-sectional view of the assembled state of this utility model.

[0028] In the diagram: 1. End cap body; 2. Arc-shaped groove; 3. Arc-shaped buckle; 4. L-shaped hook; 5. Shaft groove; 6. Rotating shaft; 7. Clamping post; 8. Pressure handle; 9. C-shaped groove; 10. Reinforcing rib; 11. Electric bed steel pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1

[0031] like Figures 1 to 5 As shown, a specific embodiment of the arc-shaped assembly structure for end caps according to this utility model includes:

[0032] End cap body 1:

[0033] The lower end is provided with a sleeve, which is used to fit onto the tail end of the motor (motor not shown);

[0034] Eight L-shaped hooks 4 are evenly distributed on the outer circumference surface and are snapped and fixed to the tail end of the motor to achieve circumferential positioning;

[0035] Arc-shaped slot 2:

[0036] It is integrally formed on the upper end of the end cap body 1, with the opening facing upward, and is snapped into the electric bed steel pipe 11 to achieve pre-fixation;

[0037] Curved buckle 3:

[0038] One end is rotatably mounted on the left side of the arc-shaped slot 2 via a rotating structure:

[0039] The rotating structure includes a shaft slot 5 and a rotating shaft 6. The shaft slot 5 is located on the outer end face of the left side opening of the arc-shaped slot 2, and the rotating shaft 6 is fixed to the left end of the arc-shaped buckle 3 and can be rotatably embedded into the shaft slot 5.

[0040] The other end is fixed to the right side of the arc-shaped slot 2 via a snap-fit ​​structure:

[0041] The buckle structure includes a snap post 7 and a C-shaped slot 9. The snap post 7 is located at the right end of the arc-shaped buckle 3, and the C-shaped slot 9 is located on the outer end face of the right side opening of the arc-shaped slot 2. The snap post 7 is inserted into the C-shaped slot 9 by rotating the arc-shaped buckle 3.

[0042] The end is integrally molded with a pressure handle 8, which facilitates manual force application and rotation for fastening;

[0043] Auxiliary structure:

[0044] Reinforcing rib 10: Located at the connection between the rotating structure, the snap-fit ​​structure and the end cap body 1 to enhance structural strength;

[0045] The entire piece is molded in one piece using injection molding, eliminating standard parts such as bolts, thus reducing material costs and assembly complexity.

[0046] The working principle of this utility model is as follows: During assembly, the sleeve of the end cover body 1 is aligned with the tail end of the motor, and the L-shaped hook 4 is used to achieve initial fixation; then the electric bed steel pipe 11 is inserted into the arc-shaped slot 2, and the arc-shaped slot 2 is used to engage with the outer periphery of the electric bed steel pipe 11 to achieve pre-fixation; finally, the arc-shaped buckle 3 is rotated by the pressure handle 8 to make the locking post 7 engage with the C-shaped slot 9 to complete the overall locking; during disassembly, the arc-shaped buckle 3 is rotated in the opposite direction to unlock, and the end cover body 1 can be quickly removed.

[0047] Reinforcing ribs 10 are distributed at the connection between the shaft groove 5, the C-shaped groove 9 and the end cover body 1 to enhance the strength of the rotating and snapping parts.

[0048] All components mentioned in this article are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0049] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An arc-shaped assembly structure for an end cap, characterized in that, include: The end cap body (1) has a sleeve at its lower end, and the end cap body (1) is installed at the tail end of the motor through the sleeve. Arc-shaped slot (2) is integrally formed on the upper end of the end cap body (1). The arc-shaped slot (2) opens upward and is used to engage with the electric bed steel pipe (11) to achieve pre-fixation. The arc-shaped buckle (3) has one end mounted on the arc-shaped slot (2) by a rotating structure, and the other end is fixedly assembled with the arc-shaped slot (2) on the electric bed steel pipe (11) by a buckle structure.

2. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: The rotating structure includes a shaft slot (5) and a rotating shaft (6). The shaft slot (5) is integrally formed on the outer end face of the left side opening of the arc-shaped slot (2). The rotating shaft (6) is fixedly set at the left end of the arc-shaped buckle (3). The rotating shaft (6) is rotatably installed in the shaft slot (5).

3. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: The buckle structure includes a buckle post (7) and a C-shaped buckle groove (9). The buckle post (7) is fixedly installed at the right end of the arc buckle (3). The C-shaped buckle groove (9) is set on the outer end face of the right side opening of the arc buckle groove (2). The buckle post (7) can be fixed by rotating the arc buckle (3) into the C-shaped buckle groove (9).

4. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: The right end of the arc-shaped buckle (3) has an integrally formed pressure handle (8) for easy hand gripping.

5. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: L-shaped hooks (4) are installed at equal intervals on the outer circumferential surface of the end cap body (1). The L-shaped hooks (4) are used to snap and fix the tail end of the motor. There are eight L-shaped hooks (4) at equal intervals.

6. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: The rotating structure and the end cap body (1) and the snap-fit ​​structure and the end cap body (1) are both provided with reinforcing ribs (10) to increase the structural strength.

7. The arc-shaped assembly structure for an end cap according to claim 1, characterized in that: The arc-shaped groove (2) and the end cap body (1) are integrally formed by injection molding, and the arc-shaped buckle (3) is integrally formed by injection molding.