Conical compression spring limiter

Abstract

The utility model discloses a conical compression spring limiter which comprises a limiter support, a limiting arm, a half cover shell, a pressure spring and sliding blocks, the limiter support is fixedly arranged at one end of the limiting arm, and the other end of the limiting arm is arranged between the two sliding blocks arranged in pairs in a penetrating mode so that the sliding blocks can slide on the limiting arm. A pressure spring is arranged in the sliding block, the half housing is arranged on the outer side of the sliding block in a sleeving mode, by arranging the conical spring, the non-gear parking problem is solved, a vehicle door can be parked at any angle, the limiting function can be kept in the vehicle door opening process, it is guaranteed that the vehicle door can be parked when going up and down a slope, and good comfort and stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a conical compression spring limiter. Background Technology

[0002] With the development and popularization of automotive technology, cars have increasingly become a common household item, serving as a means of transportation for commuting and travel. As fuel prices rise, lightweighting has become a crucial indicator in automotive development, and the miniaturization and lightweight design of components are key metrics for evaluating component development quality. Door limiters restrict the degree to which car doors open. On one hand, they limit the maximum opening angle, preventing the door from opening too wide; on the other hand, they prevent the door from automatically closing when it needs to remain open.

[0003] As parking spaces become increasingly scarce and door opening space becomes more and more limited, the only limit switches currently available on the market are wire spring limit switches, which cannot stop the car in non-gear positions. The limit switches currently available on the market use two springs to achieve stopping in non-gear positions, which involves more parts and processes, resulting in higher costs and a higher defect rate.

[0004] For example, Chinese patent CN119062197A discloses a door limiter and door assembly for vehicles, relating to the field of vehicle component technology. The door limiter includes a housing, a limiting arm, and a limiting mechanism. The limiting arm includes a connecting rod and a limiting mating part. The connecting rod is inserted into the housing, and one end of the connecting rod located outside the housing is connected to the side panel of the vehicle body. The limiting mating part is located on the portion of the connecting rod located inside the housing. The limiting mechanism is located inside the housing and is used to restrict the movement of the limiting mating part. The limiting mechanism forms a limiting space extending in a first direction. The limiting mating part is slidably disposed in the limiting space along the first direction and is rotatable relative to the limiting mechanism. The limiting mating part can move in the first direction relative to the limiting mechanism and rotate around a rotation axis extending in the vertical direction and passing through its own center. Although this door limiter can reduce the space required for the limiting arm during extension and retraction, thereby reducing the installation space occupied by the door limiter inside the door, it cannot solve the problem of parking in non-gear positions.

[0005] For example, Chinese patent CN119102431A discloses an adjustable door opening angle limiter, which includes a limit shell and control components. Two sets of control components are respectively embedded inside the limit shell. Each set of control components includes a cylinder, a slider, a compression spring, an adjusting plate, and a mounting plate. The cylinder is embedded inside the limit shell, the slider is embedded inside the cylinder, one end of the compression spring is fixedly connected to the slider and located at the upper end of the slider, and the compression spring is embedded inside the cylinder. The mounting plate is fixedly connected to the end of the compression spring away from the slider, the adjusting plate is threadedly connected to the cylinder and embedded inside the cylinder, and the mounting plate is rotatably connected to the adjusting plate, and the mounting plate is embedded inside the adjusting plate. By adjusting the limiter, the distance of the main arm can be limited, thereby adjusting the opening angle of the door, achieving the purpose of adjustable door opening angle. However, this limiter still cannot achieve the function of non-gear parking. Utility Model Content

[0006] Purpose of the utility model: In order to overcome the shortcomings of the existing technology, this utility model provides a conical compression spring limiter, which has a simple structure, stable and reliable operation, low manufacturing cost, and can achieve parking in non-gear positions.

[0007] Technical solution: In order to achieve the above objectives, the present invention provides a conical compression spring limiter, which includes: a limiter bracket, a limit arm, a half-cover, a pressure spring, and a slider.

[0008] The limiter bracket is fixed to one end of the limit arm, and the other end of the limit arm passes through the middle of two paired sliders to allow the sliders to slide on the limit arm. The sliders are equipped with pressure springs, and the half-shell is fitted on the outside of the sliders. There is a hole in the middle of the two sliders that matches the shape of the limit arm. The hole is equipped with a rolling ball bearing to facilitate the sliding of the sliders on the limit arm. When the slider is pushed to slide on the limit arm, the balls in the rolling ball bearing will rotate with the sliding of the slider. Since the rolling ball bearing is existing technology, the structure here will not be described in detail.

[0009] As a further preferred embodiment of this utility model, the limiter bracket is fixed to the A / B pillar of the car by bolts and nuts.

[0010] As a further preferred embodiment of this utility model, the slider is fixed to the car door by a nut using a half-shell sleeved on its surface.

[0011] As a further preferred embodiment of this invention, the pressure spring is a conical spring.

[0012] As a further preferred embodiment of this utility model, the smaller diameter end of the conical spring is fixed to the inside of the slider by means of snap-fit, riveting, or welding.

[0013] As a further preferred embodiment of this invention, the larger diameter end of the conical spring is located away from the gap between the two sliders.

[0014] As a further preferred embodiment of this invention, the conical springs are multiple and arranged in pairs.

[0015] As a further preferred embodiment of this utility model, the limiting arm is provided with a first position and a second position for limiting the slider.

[0016] As a further preferred embodiment of this utility model, the first gear position and the second gear position are respectively grooves with curved surfaces.

[0017] As a further preferred embodiment of this utility model, by manually pushing the car door, the slider is driven to slide on the limiting arm. Different forces applied to the car door cause the slider to slide to different positions on the limiting arm. When a non-gear parking situation occurs, the slider will slide on the limiting arm to the first or second gear according to the tilt direction of gravity, thereby solving the problem of non-gear parking.

[0018] Beneficial effects: Compared with the prior art, the conical compression spring limiter described in this utility model has the following advantages:

[0019] (1) Fewer parts are used, lower manufacturing cost, simpler structure, and more stable and reliable operation while ensuring non-gear parking;

[0020] (2) By setting a conical spring, the problem of non-gear parking is solved, and the door can be parked at any angle;

[0021] (3) The door can maintain the limit function during opening, ensuring that it can stop when going up or down slope, with good comfort and stability. Attached Figure Description

[0022] Figure 1 This is a full sectional front view of the present invention;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation of this utility model. Detailed Implementation

[0025] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3As shown, the conical compression spring limiter of this utility model includes: a limiter bracket 1, a second position 2, a limit arm 3, a half cover 4, a first position 5, a pressure spring 6, and a slider 7.

[0027] The limiter bracket 1 is fixed to one end of the limit arm 3 by welding or threaded connection, and the limiter bracket 1 is fixed to the A / B pillar of the car by bolts and nuts;

[0028] The other end of the limiting arm 3 is inserted through the middle of two paired sliders 7 to allow the sliders 7 to slide on the limiting arm 3. A hole that matches the shape of the limiting arm 3 is provided in the middle of the two sliders 7, and a rolling ball bearing is provided in the hole to facilitate the sliding of the sliders 7 on the limiting arm 3.

[0029] The installation method of the two connected sliders 7 and the limiting arm 3 is as follows: first, the limiting arm 3 is placed in the hole with bearings in the middle of the two open sliders 7. At this time, the hole is two semicircles. Then, the two sliders 7 are brought closer to the middle to make the hole round. Finally, the hole in the middle of the two sliders is connected and fixed by threaded connection or riveting. This installation method is existing technology and belongs to common knowledge and conventional technical means in the mechanical field. It will not be described in detail here.

[0030] The slider 7 is fixed to the car door by a nut through a half-shell 4 fitted on its surface. A conical pressure spring 6 is provided inside the slider 7. The smaller diameter end of the conical pressure spring 6 is fixed to the inside of the slider 7 by snap-fit, riveting, or welding. The larger diameter end of the conical pressure spring 6 is away from the rolling ball bearing between the two sliders 7. The half-shell 4 is fitted on the outside of the slider 7.

[0031] When the car door needs to be opened or closed, the slider 7 is moved to slide on the limiting arm 3 by manually pushing the car door. Different forces applied to the car door cause the slider 7 to slide to different positions on the limiting arm 3. The limiting arm 3 is provided with a first position 5 and a second position 2 for limiting the slider 7. The first position 5 and the second position 2 are respectively grooves with curved surfaces. When a non-gear parking situation occurs, the slider 7 will slide on the limiting arm 3 to the first position 5 or the second position 2 according to the tilt direction of gravity, thereby solving the problem of non-gear parking.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A coned disc spring check valve characterized by: It includes: The positioner support (1), the limiting arm (3), the half cover (4), the pressure spring (6) and the slider (7), the positioner support (1) is fixed in one end of the limiting arm (3), the other end of the limiting arm (3) is arranged in the middle of the two sliders (7) to realize the sliding of the slider (7) on the limiting arm (3), the slider (7) is provided with the pressure spring (6), and the half cover (4) is arranged on the outer side of the slider (7).

2. A conical compression spring limiter according to claim 1, characterized in that: The positioner support (1) is fixed on the A / B column of the automobile by bolts and nuts.

3. A conical compression spring limiter according to claim 1, characterized in that: The slider (7) is fixed on the door by the half cover (4) arranged on the surface of the slider (7) and nuts.

4. A conical compression spring limiter according to claim 1, characterized in that: The pressure spring (6) is a conical spring.

5. A conical compression spring limiter according to claim 4, characterized in that: The smaller end of the conical spring is fixed in the inner side of the slider (7) by clamping, riveting and welding.

6. A conical compression spring limiter according to claim 4, characterized in that: The larger end of the conical spring is away from the gap between the two sliders (7).

7. A conical compression spring limiter according to claim 6, characterized in that: The conical spring is multiple and arranged in pairs.

8. A conical compression spring limiter according to claim 1, characterized in that: The limiting arm (3) is provided with a first gear (5) and a second gear (2) for limiting the slider (7).

9. A conical compression spring limiter according to claim 8, characterized in that: The first gear (5) and the second gear (2) are respectively provided with curved grooves.

10. A conical compression spring limiter according to claim 1, characterized in that: The door is manually pushed to drive the slider (7) to slide on the limiting arm (3), and the different forces of the door make the slider (7) slide to different positions on the limiting arm (3).

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