Spring mounting mechanism for automobile seat

By combining a frame, pivot, swing arm, pull rod, and limit rod, along with the design of a pin-limit rod, the problem of inconvenient spring installation in existing technologies is solved, enabling convenient installation and disassembly and improving maintenance efficiency.

CN223972472UActive Publication Date: 2026-03-06NANJING ANCHI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing methods for fixing car seat springs are inconvenient to install and remove, welding is troublesome and laborious, and hook-type installation is laborious at first and difficult to disassemble later, requiring special tools.

Method used

It adopts a combination structure of frame, pivot, swing arm, pull rod, limit rod and limit unit. The spring can be easily installed and removed by the cooperation of pin and limit rod, and the installation efficiency is improved by lever principle.

Benefits of technology

It enables convenient installation and removal of springs, improves maintenance convenience, and avoids the inconvenience of welding and hook-type installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223972472U_ABST
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Abstract

The utility model relates to a spring mounting mechanism for an automobile seat, which comprises a frame, a rotating shaft, two rotating arms, a pull rod, a limiting rod and a limiting unit, the rotating shaft and the pull rod are both positioned in the frame, the pull rod is parallel to the rotating shaft, the pull rod is positioned on one side in the frame, one end of each rotating arm is hinged with the rotating shaft, and the other end of each rotating arm is hinged with the limiting unit. One end of the rotating arm is fixedly connected with the frame, the other end of the rotating arm is fixedly connected with the pull rod, the number of the limiting rods is two, the two limiting rods and the pull rod are coaxially arranged, the two limiting rods are arranged at the two ends of the pull rod respectively, two grooves are formed in the frame, the two grooves correspond to the two limiting rods, and the two limiting rods are located in the two grooves respectively. When the spring is mounted, the hook at one end is limited through the edge of the frame, the hook at the other end is stretched through the pull rod, and then the limiting rod is limited through the plug pin, so that the pull rod is fixed, the spring can be conveniently mounted and dismounted, and the maintenance convenience is improved.
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Description

Technical Field

[0001] This utility model relates to a spring mounting mechanism for automobile seats. Background Technology

[0002] In the existing technology, car seat springs generally use serpentine springs or mesh springs to achieve elastic support. The edges of these springs are usually fixed by welding or hooks. Welded springs are troublesome to maintain and cannot be quickly disassembled. Hook-type installations are laborious to install initially and are also very troublesome to disassemble later, requiring special tools, which is very inconvenient. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a spring mounting mechanism for automobile seats.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a spring mounting mechanism for automobile seats, including a frame, a rotating shaft, a rotating arm, a pull rod, a limiting rod, and a limiting unit. The rotating shaft and the pull rod are both located inside the frame. The pull rod is parallel to the rotating shaft and is located on one side inside the frame. There are two rotating arms, which are parallel to each other. One end of the rotating arm is hinged to the rotating shaft, and the other end of the rotating arm is fixedly connected to the pull rod. The rotating arm is perpendicular to the pull rod. There are two limiting rods, which are coaxially arranged with the pull rod and are respectively arranged at both ends of the pull rod. The frame is provided with two grooves, which correspond to the two limiting rods. The two limiting rods are respectively located in the two grooves.

[0005] There are two limiting units, which are arranged on both sides of the frame. The limiting units are located near the grooves of the frame, and the frame is located between the two limiting units. Each limiting unit includes a fixing block and a pin. The pin passes through the fixing block and is parallel to the rotating arm.

[0006] The pin and the pull rod are located on opposite sides of the groove, with the pin positioned above the end of the limiting rod furthest from the pull rod.

[0007] Preferably, the pin has an arc-shaped groove on the side near the pull rod.

[0008] Preferably, the rotating shaft is provided with a rotating ring, the rotating ring is sleeved on the rotating shaft, and the end of the rotating arm away from the pull rod is connected to the rotating ring.

[0009] The beneficial effects of this utility model are that, when installing a spring for a car seat, one end of the hook is limited by the edge of the frame, and the other end of the hook is stretched by the pull rod. Then, the limiting rod is limited by the pin, thereby fixing the pull rod. This enables convenient installation and disassembly of the spring, improving the convenience of maintenance. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a structural schematic diagram of the spring mounting mechanism for a car seat according to this utility model.

[0012] Figure 2 This is a schematic diagram of the locking state of the limit rod of the spring mounting mechanism for automobile seats according to this utility model.

[0013] Figure 3 This is a top view of the spring mounting mechanism for a car seat according to the present invention.

[0014] Figure 4 yes Figure 2 Enlarged view of part A;

[0015] Figure 5 yes Figure 3 Enlarged view of part B;

[0016] In the diagram: 1. Frame, 2. Shaft, 3. Arm, 4. Tie rod, 5. Limiting rod, 6. Fixing block, 7. Pin, 8. Rotary ring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] like Figure 1-5 As shown, a spring mounting mechanism for a car seat includes a frame 1, a pivot 2, a pivot arm 3, a pull rod 4, a limiting rod 5, and a limiting unit. The pivot 2 and the pull rod 4 are both located inside the frame 1. The pull rod 4 is parallel to the pivot 2 and is located on one side inside the frame 1. There are two pivot arms 3, which are parallel to each other. One end of the pivot arm 3 is hinged to the pivot 2, and the other end of the pivot arm 3 is fixedly connected to the pull rod 4. The pivot arm 3 is perpendicular to the pull rod 4. There are two limiting rods 5, which are coaxially arranged with the pull rod 4 and are respectively arranged at both ends of the pull rod 4. The frame 1 has two grooves, which correspond to the two limiting rods 5, and the two limiting rods 5 are respectively located in the two grooves.

[0019] There are two limiting units, which are arranged on both sides of the frame 1. The limiting units are arranged near the groove of the frame 1. The frame 1 is located between the two limiting units. Each limiting unit includes a fixing block 6 and a pin 7. The pin 7 passes through the fixing block 6 and is parallel to the rotating arm 3.

[0020] The pin 7 and the pull rod 4 are located on both sides of the groove, and the pin 7 is located above the end of the limiting rod 5 that is away from the pull rod 4.

[0021] Preferably, the pin 7 has an arc-shaped groove on the side near the pull rod 4.

[0022] Preferably, the rotating shaft 2 is provided with a rotating ring 8, which is sleeved on the rotating shaft 2, and the end of the rotating arm 3 away from the pull rod 4 is connected to the rotating ring 8.

[0023] In fact, frame 1 consists of four sides. During installation, the hook at one end of the spring is hooked on the end of frame 1 away from the pull rod 4, and the hook at the other end is hooked on the pull rod 4. Then, the pull rod 4 is rotated in the direction of stretching the spring, so that the two limiting rods 5 at both ends of the pull rod 4 are pressed into the groove. Then, the pin 6 is pushed in the direction of the limiting rod 5, so that the pin 6 presses on the limiting rod 5. In this way, the pull rod 4 cannot be reset, and the spring is actually in a stretched and taut state. This achieves a stable installation of the spring, and by using the lever principle, it is easier to stretch the spring.

[0024] An arc-shaped groove is provided on the side of the pin 6 near the limiting rod 5, so that the limiting rod 5 falls exactly into the arc-shaped groove. This prevents the pin 6 from being shaken off during the use of the seat due to long-term vibration, which would cause the limiting effect of the limiting rod 5 to fail and the spring to retract.

[0025] Compared with existing technologies, this spring mounting mechanism for car seats allows for convenient installation and removal of the spring. One end of the hook is limited by the edge of the frame 1, while the other end of the hook is stretched by the pull rod 4. Then, the limit rod 5 is limited by the pin 7, thereby fixing the pull rod 4. This enables convenient installation and removal of the spring, improving the ease of maintenance.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A spring mounting mechanism for a vehicle seat, characterized by, Including frame, pivot, swing arm, pull rod, limiting rod and limiting unit, the pivot and the pull rod are located in the frame, the pull rod is parallel with the pivot, the pull rod is located in one side of the frame, the swing arm has two, two swing arms are parallel, one end of the swing arm is hinged with the pivot, the other end of the swing arm is fixedly connected with the pull rod, the swing arm is perpendicular to the pull rod, the limiting rod has two, two limiting rods are coaxially arranged with the pull rod, two limiting rods are respectively arranged at two ends of the pull rod, two recesses are formed in the frame, two recesses are correspondingly arranged with two limiting rods, two limiting rods are respectively located in two recesses; The limiting unit has two, two limiting units are arranged on both sides of the frame, the limiting unit is close to the recess of the frame, the frame is located between two limiting units, the limiting unit includes a fixed block and a bolt, the bolt passes through the fixed block, the bolt is parallel with the swing arm; The bolt and the pull rod are respectively located on both sides of the recess, the bolt is located above the end of the limiting rod away from the pull rod.

2. The spring mounting mechanism for an automobile seat according to claim 1, wherein The side of the bolt close to the pull rod is provided with an arc-shaped groove.

3. The spring mounting mechanism for an automobile seat according to claim 1, wherein The pivot is provided with a rotating ring, the rotating ring is sleeved on the pivot, and the end of the swing arm away from the pull rod is connected with the rotating ring.