CN219974196U - Compression spring vehicle door limiter - Google Patents

Abstract

The utility model discloses a compression spring vehicle door limiter, which comprises a limiting arm and a limiting box, wherein one end of the limiting arm is connected with a vehicle body, the other end of the limiting arm is connected with a vehicle door, two opposite side surfaces of the limiting arm are sliding limiting surfaces, a plurality of groups of limiting grooves are symmetrically arranged along the length direction of the sliding limiting surfaces, and each limiting groove is of an arc-shaped surface structure; the limiting box is arranged on the vehicle door and sleeved on the limiting arm, the limiting box comprises a profiling cavity, a fixed block, a spring and cylindrical rolling pins, the profiling cavity is arranged at two ends of the inside of the limiting box relative to the limiting arm, the fixed block is arranged in the profiling cavity in a sliding mode, one end, close to a sliding limiting surface, of the fixed block is provided with an arc-shaped groove, the cylindrical rolling pins are embedded into the arc-shaped groove and are abutted to the sliding limiting surface at the opening of the arc-shaped groove in a matched rolling mode, one end of the spring is abutted to the fixed block, and the other end of the spring is abutted to the inner wall of the limiting box. The technical problems that in the prior art, friction force between a limit box and a limit arm is large, closing-assisting energy of a vehicle door limiter is small and noise is easy to generate are solved.

Description

Compression spring vehicle door limiter

Technical Field

The utility model relates to the technical field of automobile part manufacturing, in particular to a compression spring automobile door limiter.

Background

The door limiter is one of the functional parts of the automobile, is usually installed on the automobile door and is connected with the automobile body, and has the main function of limiting the opening degree of the door, on one hand, the door limiter can limit the maximum opening degree of the door and prevent the door from being opened too much, and on the other hand, the door limiter can keep the door to be opened at a certain position under special conditions, so that the operability of the door is greatly dependent on the design of the limiter.

The current common door limiter is compression spring limiter, it includes spacing arm and cover locate spacing arm on and with door fixed connection's spacing box, it is mainly through setting up a plurality of spacing grooves on spacing arm, be equipped with compression spring and slider in the spacing box, slider and spacing groove adaptation, at the in-process that the door was opened or was closed, spacing box passes through the slider and slides on spacing arm, and with spacing groove cooperation on the spacing arm, realize the spacing moderate adjustment to door opening angle, but the slider is when sliding on spacing arm, because of slider and spacing arm contact area are great, and be sliding friction between slider and the spacing arm, make the frictional force between spacing box and the spacing arm great, door limiter helps close energy little and produce the noise easily.

Disclosure of Invention

The utility model aims to provide a compression spring vehicle door limiter, which is used for solving the technical problems that in the prior vehicle door limiter technology, the contact area between a sliding block and a limiting arm is large, the sliding friction is adopted between the sliding block and the limiting arm, so that the friction force between a limiting box and the limiting arm is large, the closing-assisting energy of the vehicle door limiter is small and noise is easy to generate, and the closing-assisting energy is increased by reducing friction energy consumption, so that the vehicle door is smoother in the opening and closing processes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compression spring vehicle door limiter which is arranged between a vehicle body and a corresponding vehicle door and comprises the following components:

the limiting arm is connected with the vehicle body at one end and the vehicle door at the other end, sliding limiting surfaces are arranged on two opposite side surfaces of the limiting arm, a plurality of groups of limiting grooves are symmetrically arranged on the two opposite sliding limiting surfaces along the length direction of the sliding limiting surfaces, and the limiting grooves are of an arc-shaped surface structure;

the limiting box is arranged on the vehicle door and sleeved on the limiting arm, the limiting box and the limiting arm move relatively, the limiting box comprises a profiling cavity, a fixing block, a spring and cylindrical rolling pins, the profiling cavity is symmetrically arranged at two ends inside the limiting box, the fixing block is slidably arranged in the profiling cavity, one end of the fixing block, which is close to the sliding limiting surface, is provided with an arc-shaped groove matched with the cylindrical rolling pins, the cylindrical rolling pins are embedded in the arc-shaped groove, the cylindrical rolling pins pass through an opening of the arc-shaped groove and are in butt joint with the sliding limiting surface to roll in a matched mode, the radius of the bottom surface of the cylindrical rolling pins is smaller than the radius of the arc-shaped curvature of the limiting groove, one end of the spring is in butt joint with the fixing block, and the other end of the spring is in butt joint with the inner wall of the limiting box.

Preferably, the connection part of the limiting groove and the sliding limiting surface is of an arc-shaped surface structure.

Preferably, one end of the fixed block, which is far away from the sliding limiting surface, is provided with a circular inner groove matched with the spring, one end of the spring extends into the circular inner groove to be abutted with the fixed block, and the other end of the spring is abutted with the inner wall of the limiting box.

Preferably, the mounting windows are formed in the two end faces of the limiting box, a fixing groove and a baffle are formed in one side, close to the profiling cavity, of the mounting windows, the baffle is connected with the fixing groove in a press-fit mode, and the baffle is abutted to the end face, close to one side, of the profiling cavity, of the spring.

Preferably, the surfaces of the cavity walls and the cylindrical rolling pins of the profiling cavity are coated with lubricating oil.

Preferably, the spring is a spiral compression spring, and the working load of the spring is between 350N and 500N.

Preferably, the cylindrical needle roller is made of stainless steel.

Preferably, the fixing block is made of low carbon steel or stainless steel.

Preferably, the vehicle body mounting device further comprises a mounting bracket, wherein the mounting bracket is fixedly mounted on the vehicle body, and one end of the limiting arm is riveted with the mounting bracket.

Preferably, a stop block is arranged at one end, connected with the vehicle door, of the limiting arm, and a buffer pad is arranged at one side, close to the limiting arm, of the stop block.

Compared with the prior art, the utility model has the following beneficial effects:

according to the technical scheme, the two sliding limiting surfaces opposite to each other on the limiting arm are symmetrically provided with the plurality of groups of limiting grooves along the length direction of the limiting arm, the limiting grooves are designed to be of an arc surface structure, the limiting box is sleeved on the limiting arm and moves relative to the limiting arm, the two ends, opposite to the limiting arm, of the inside of the limiting box are provided with profiling cavities, the fixing block is arranged in the profiling cavities in a sliding mode, one end, close to the limiting arm, of the fixing block is provided with the arc grooves, cylindrical rolling pins which are installed in an adapting mode with the arc grooves are embedded in the arc grooves, the cylindrical rolling pins are in butt joint with the limiting arm through the opening of the arc grooves and roll in a matched mode, the other end of the fixing block is in butt joint with one end of the spring, the other end of the spring is in butt joint with the inner wall of the limiting box, and the bottom radius of the cylindrical rolling pins is smaller than the cambered surface radius of the limiting groove.

Drawings

The following drawings are merely corresponding to some of the embodiments of the present utility model and are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of an embodiment of the present utility model.

Fig. 3 is a schematic plan view of a fixing block according to an embodiment of the present utility model.

The main reference numerals illustrate:

10. a limiting arm; 11. a sliding limit surface; 12. a limit groove; 13. a stop block; 131. a cushion pad; 20. a limit box; 21. profiling cavity; 22. a fixed block; 221. a circular inner groove; 222. an arc-shaped groove; 23. a spring; 24. cylindrical needle roller; 25. installing a window; 26. a baffle; 27. installing a bolt; 30. a mounting bracket; 31. and (5) a rivet.

Detailed Description

The embodiment of the utility model provides a compression spring vehicle door limiter, which is used for solving the technical problems that in the prior vehicle door limiter technology, the contact area between a sliding block and a limiting arm is large, sliding friction is adopted between the sliding block and the limiting arm, so that the friction force between a limiting box and the limiting arm is large, the closing-assisting energy of the vehicle door limiter is small, and noise is easy to generate.

The embodiment of the utility model has the conception that a plurality of groups of limit grooves are symmetrically arranged on two opposite sliding limit surfaces of the limit arm along the length direction of the limit arm, the limit grooves are designed into an arc surface structure, the limit box is sleeved on the limit arm and moves relative to the limit arm, profiling cavities are arranged at two ends of the inside of the limit box relative to the limit arm, the fixed block is arranged in the profiling cavities in a sliding manner, one end of the fixed block, which is close to the limit arm, is provided with the arc grooves, cylindrical rolling pins which are installed in the arc grooves in an adapting manner, are abutted to the limit arm through arc groove openings and matched with the arc grooves to roll, the other end of the fixed block is abutted to one end of the spring, the other end of the spring is abutted to the inner wall of the limit box, the radius of the bottom surface of the cylindrical rolling pins is smaller than the radius of curvature of the arc surface of the limit groove, so that rolling friction is formed between the limit box and the limit arm, the limit box is in line contact with the limit arm, friction force between the limit box and the limit arm is greatly reduced, and the problem of the existing vehicle door limiter technology that the sliding friction force between the limit box and the limit arm is large in contact area, and the sliding friction force between the slide block and the limit arm is easy to produce noise is solved.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments 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. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

This example is merely one specific example of an embodiment of the present utility model, and the present utility model will be described in further detail below with reference to the accompanying drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-3, a compression spring door check device according to an embodiment of the present utility model, the door check device is installed between a vehicle body and a corresponding door, and includes:

and the mounting bracket 30 is fixedly mounted on the vehicle body through bolts, and the mounting bracket 30 is fixedly mounted on the vehicle body through bolts.

The limiting arm 10, one end of the limiting arm 10 is riveted with the mounting bracket 30 through a rivet 31, in other embodiments, the limiting arm 10 may also be hinged with the mounting bracket 30 through a hinge, the other end of the limiting arm 10 is connected with a vehicle door, and during the opening and closing process of the vehicle door, the limiting arm 10 rotates around the mounting bracket 30 through the rivet 31.

The upper side and the lower side of the limiting arm 10 are sliding limiting surfaces 11, three groups of limiting grooves 12 are symmetrically arranged on the two sliding limiting surfaces 11 along the length direction of the limiting arm 10, each two limiting grooves 12 are a group, the limiting grooves 12 are arc-shaped surface structures, and in actual use, the specific number of the limiting grooves 12 can be adjusted according to actual requirements.

The limiting box 20, the through hole has been seted up at limiting box 20 middle part, limiting box 20 passes through the through hole cover is located on the spacing arm 10, limiting box 20 with spacing arm 10 takes place relative motion, limiting box 20 is close to the side of installing support 30 one side for spacing arm 10 symmetry is provided with two mounting bolts 27, limiting box 20 passes through mounting bolt 27 fixed mounting is on the door.

The limiting box 20 comprises a profiling cavity 21, a fixed block 22, a spring 23 and a cylindrical needle roller 24, wherein the profiling cavity 21 is symmetrically arranged at two ends of the inside of the limiting box 20 relative to the through hole, and the two profiling cavities 21 are opposite to the two sliding limiting surfaces 11. The fixed block 22 is slidingly arranged in the profiling cavity 21, in order to reduce friction between the fixed block 22 and the profiling cavity 21 and reduce abnormal sound occurrence probability of the vehicle door limiter, the fixed block 22 is in clearance fit with the profiling cavity 21, and the cavity wall of the profiling cavity 21 is smeared with lubricating oil, in order to prevent the fixed block 22 from being corroded due to environmental factors and meeting the light weight requirement of an automobile, the fixed block 22 is cast by adopting low carbon steel or stainless steel materials, one end of the fixed block 22, which is close to the sliding limiting surface 11, is provided with an arc groove 222, the arc groove 222 is matched with the cylinder needle 24, the cylinder needle 24 is embedded into the arc groove 222, the arc groove 222 accommodates the cylinder needle 24 for half volume, so that the arc groove 222 plays a limiting role on the cylinder needle 24, the opening of the arc-shaped groove 222 is aligned with the sliding limiting surface 11, the cylindrical needle roller 24 is abutted to the sliding limiting surface 11 through the opening of the arc-shaped groove 222 and rolls in a matched manner, in order that the cylindrical needle roller 24 can roll in the arc-shaped groove 222 and reduce friction force between the cylindrical needle roller 24 and the sliding limiting surface 11, the cylindrical needle roller 24 is in clearance fit with the arc-shaped groove 222, lubricating oil is smeared on the surface of the cylindrical needle roller 24, in order to prevent the cylindrical needle roller 24 from being corroded due to environmental factors and meet the light-weight requirement of an automobile, the cylindrical needle roller 24 is cast by stainless steel materials, the radius of the bottom surface of the cylindrical needle roller 24 is smaller than the radius of curvature of the arc-shaped surface of the limiting groove 12, the cylindrical needle roller 24 always keeps line contact between the cylindrical needle roller 24 and the sliding limiting surface 11 when the surface of the sliding limiting surface 11 rolls, one end of the spring 23 is abutted against the fixed block 22, the other end of the spring is abutted against the inner wall of the limiting box 20, the spring is a spiral compression spring, the line diameter of the spring is 2.4mm, the middle diameter of the spring is 10.35mm, the free length of the spring is 28.7mm, the rigidity of the spring is about 55N/mm, the working load is between 350N and 500N, the specifications of the parts are not unique, and the parts with different specifications are selected according to the different specifications of the limiting box 20 in practical cases.

In the technical scheme of the embodiment of the utility model, one end of the limiting arm 10 is hinged with the mounting bracket 30, the other end of the limiting arm is connected with the vehicle door, three groups of limiting grooves 12 are symmetrically arranged on the upper sliding limiting surface 11 and the lower sliding limiting surface 11 of the limiting arm 10 along the length direction of the limiting arm, the limiting grooves 12 are designed into an arc surface structure, a through hole is arranged in the middle of the limiting box 20, the limiting box 20 is sleeved on the limiting arm 10 through the through hole, two profiling cavities 21 are symmetrically arranged at two ends of the inside of the limiting box 20 relative to the through hole, the two profiling cavities 21 are opposite to the two sliding limiting surfaces 11, a fixed block 22 is slidably arranged in the profiling cavities 21, the fixed block 22 is made of low carbon steel or stainless steel, an arc groove 222 is arranged on one side of the fixed block 22 close to the sliding limiting surface 11, a cylinder needle 24 is embedded into the arc groove 222, the cylinder needle 24 is abutted with the sliding limiting surface 11 through the opening of the arc groove 222, the cylindrical needle roller 24 is made of stainless steel, the radius of the bottom surface of the cylindrical needle roller 24 is smaller than the radius of curvature of the arc surface of the limit groove 12, one end of the spring 23 is abutted against the fixed block 22, the other end of the spring 23 is abutted against the inner wall of the limit box 20, lubricating oil is smeared on the cavity wall of the profiling cavity 21 and the surface of the cylindrical needle roller 24, the cylindrical needle roller 24 rolls on the sliding limit surface 11, rolling friction is formed between the limit box 20 and the limit arm 10, and the radius of the bottom surface of the cylindrical needle roller 24 is smaller than the radius of curvature of the arc surface of the limit groove 12, so that line contact is always kept between the limit box 20 and the limit arm 10, friction force between the limit box and the limit arm is greatly reduced, the problem that in the existing car door limiter technology, the contact area between a sliding block and the limit arm is large is solved, sliding friction is formed between the sliding block and the limit arm, and the friction force between the limit box and the limit arm is large is, the technical problems that the closing-assisting energy of the vehicle door limiter is small and noise is easy to generate are solved, so that the vehicle door is smoother in the opening and closing processes.

In some preferred embodiments, the connection between the limiting groove 12 and the sliding limiting surface 11 is designed to be an arc surface structure, so that the cylindrical roller pin 24 can smoothly roll out of the limiting groove 12, and further friction between the cylindrical roller pin 24 and the limiting arm 10 is reduced.

In some preferred embodiments, an end of the fixed block 22 away from the sliding limiting surface 11 is further provided with a circular inner groove 221, the circular inner groove 221 is mounted in a fit with the spring 23, one end of the spring 23 extends into the circular inner groove 221 to abut against the fixed block 22, the other end abuts against the inner wall of the limiting box 20, and the circular inner groove 221 plays a role in fixing and guiding the spring 23 to avoid the spring 23 from shifting during the compression process.

In some preferred embodiments, the upper and lower end surfaces of the limiting box 20 are provided with mounting windows 25, the mounting windows 25 are communicated with the profiling cavity 21, the cylindrical needle rollers 24, the fixing blocks 22 and the springs 23 are plugged into the profiling cavity 21 from the mounting windows 25, one side, close to the profiling cavity 21, of the mounting windows 25 is provided with fixing grooves and baffle plates 26, the baffle plates 26 are pressed into the fixing grooves in a press-fit mode, in this embodiment, the baffle plates 26 are abutted against the springs 23, close to one side end surface of the profiling cavity 21, the baffle plates 26 play a fixed role on the components formed by the springs 23, the fixing blocks 22 and the cylindrical needle rollers 24, and when the springs 23, the fixing blocks 22 or the cylindrical needle rollers 24 are damaged and need to be maintained, the springs 23, the fixing blocks 22 and the cylindrical needle rollers 24 can be taken out after the baffle plates 26 are pulled out, so that maintenance and repair are facilitated.

In some preferred embodiments, a T-shaped stop block 13 is disposed at one end of the stop arm 10 connected to the vehicle door, a cushion pad 131 is disposed on a side surface of the stop block 13, which is close to the stop arm 10, the stop block 13 limits a movement space of the stop box 20, that is, limits a maximum opening of the vehicle door, and when the vehicle door is opened to the maximum opening, the cushion pad 131 is used for buffering an impact force between the stop box 20 and the stop block 13, reducing vibration and abnormal noise, and improving use comfort of a user.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art to which the utility model pertains will appreciate that numerous variations and modifications can be made without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1. A compression spring door check mounted between a vehicle body and a corresponding vehicle door, comprising:

the automobile comprises limiting arms (10), wherein one ends of the limiting arms (10) are connected with an automobile body, the other ends of the limiting arms are connected with an automobile door, two opposite side surfaces of the limiting arms (10) are sliding limiting surfaces (11), a plurality of groups of limiting grooves (12) are symmetrically arranged on the two opposite sliding limiting surfaces (11) along the length direction of the sliding limiting surfaces, and the limiting grooves (12) are of an arc-shaped surface structure;

the limiting box (20), limiting box (20) are installed in the door and cover is located on limiting arm (10), relative motion takes place for limiting box (20) and limiting arm (10), limiting box (20) are including profile modeling cavity (21), fixed block (22), spring (23) and cylinder kingpin (24), profile modeling cavity (21) symmetry is located inside both ends of limiting box (20), fixed block (22) slide set up in profile modeling cavity (21), fixed block (22) be close to slip limit face (11) one end be equipped with arc recess (222) of cylinder kingpin (24) adaptation, cylinder kingpin (24) embedding in arc recess (222), cylinder kingpin (24) pass through arc recess (222) opening with slip limit face (11) butt and matched rolling, cylinder (24) bottom surface radius is less than the radius of curvature of limit recess (12) cambered surface, spring (23) one end with fixed block (22) butt with the inner wall (20) butt.

2. A compression spring vehicle door limiter as claimed in claim 1 wherein the junction of the limiting groove (12) and the sliding limiting surface (11) is of arcuate configuration.

3. The compression spring vehicle door limiter according to claim 1, wherein one end of the fixed block (22) away from the sliding limiting surface (11) is provided with a circular inner groove (221) matched with the spring (23), one end of the spring (23) stretches into the circular inner groove (221) to be abutted with the fixed block (22), and the other end of the spring is abutted with the inner wall of the limiting box (20).

4. The compression spring vehicle door limiter according to claim 1, wherein mounting windows (25) are formed in two end faces of the limiting box (20), a fixing groove and a blocking piece (26) are formed in one side, close to the profiling cavity (21), of the mounting windows (25), the blocking piece (26) is connected with the fixing groove in a press-fit mode, and one side end face, close to the profiling cavity (21), of the blocking piece (26) is abutted to the spring (23).

5. A compression spring vehicle door check as claimed in claim 1, wherein the cavity wall of the contoured cavity (21) and the surface of the cylindrical roller pin (24) are lubricated.

6. A compression spring vehicle door check according to claim 1, wherein the spring (23) is a helical compression spring, the working load of the spring (23) being between 350N and 500N.

7. A compression spring vehicle door check as claimed in claim 1, wherein the cylindrical needle roller (24) is of stainless steel material.

8. A compression spring vehicle door check as claimed in claim 1, wherein the fixed block (22) is of mild steel or stainless steel material.

9. The compression spring vehicle door check as defined in claim 1, further comprising a mounting bracket (30), said mounting bracket (30) being fixedly mounted to the vehicle body, said check arm (10) being riveted at one end to said mounting bracket (30).

10. A compression spring vehicle door limiter according to claim 1, characterized in that the end of the limiting arm (10) connected to the vehicle door is provided with a stop block (13), and the side of the stop block (13) close to the limiting arm (10) is provided with a cushion pad (131).