Automobile door stopper

By introducing a detachable dust brush and guide rod structure into the car door limiter, the problems of laborious installation of torsion springs and poor dust prevention effect are solved, realizing convenient installation and efficient cleaning of the limit rod, and improving the user experience and lifespan of the limiter.

CN224064133UActive Publication Date: 2026-03-31NINGBO QIANFANG AUTOMOBILE FITTINGS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing car door limiters have a difficult and troublesome installation process due to the torsion springs, and the dustproof effect is not good, making it difficult to keep the limit rod clean.

Method used

A car door limiter was designed, which adopts a detachable dustproof brush structure and is connected to the limit box through a connector. Combined with a guide rod and a spring, it provides preload force to ensure the cleanliness and smooth movement of the limit rod.

Benefits of technology

It enables convenient installation and efficient dust removal of the limit rod, keeping the limit rod clean, improving the user experience and extending the lifespan of the limiter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile door limiter which comprises a limiting box and a limiting rod arranged in the limiting box, one end of the limiting rod is provided with a check block, the check block is provided with a through hole for the limiting rod to penetrate through, the check block is fixedly connected with the limiting rod through a pin shaft, and a buffering cushion is arranged between the pin shaft and the check block. A plurality of limiting grooves are formed in the limiting rod, a sliding groove is formed in the limiting box, and a connecting rod is arranged in the sliding groove in a sliding fit mode. The dust-proof device has the advantages that the dust-proof brush is detachably installed on the limiting box, so that the limiting rod is kept clean all the time, and when the dust brushing effect of the dust-proof brush becomes poor, the dust-proof brush can be replaced; the limiting rod is arranged on the connecting rod, so that the limiting rod is always kept in a clean state, the sliding process of the limiting rod is smoother, the limiting block is installed on the periphery of the connecting rod, the connecting rod is provided with the guide rod, the guide rod slides along the guide channel, meanwhile, the spring is used for resetting the limiting block and providing pre-tightening force for the limiting rod, and the installation mode of the spring is faster.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to an automobile door stopper. BACKGROUND

[0002] With the development of automobile technology and the continuous improvement of living standards, people's requirements for the comfort and safety of automobile driving are also increasing. When opening the automobile door, the driver needs the door to be kept at a certain position for a period of time to facilitate the carrying of things, cleaning inside the car, etc., and the positioning of the door at a certain position relies on the door stopper.

[0003] After searching, a kind of automobile door stopper provided by Chinese utility model patent (authorized announcement number: CN206448660U) includes limiting box and limiting rod, the limiting rod one end is equipped with fender block, limiting rod is equipped with multiple limiting slots, limiting box is set on limiting rod, limiting box and limiting rod sliding connection, limiting box upper end is equipped with the limiting block that cooperates with limiting slot, limiting block is fixedly connected with limiting box by limiting pin and is integrated, limiting box lower end is equipped with the support block for supporting limiting rod, support block is fixedly connected with limiting box by support pin and is integrated, support pin is equipped with spring, spring both ends are embedded in door, spring middle is flat, spring middle is arranged on support block, the end of limiting box away from fender block is equipped with dust pad, dust pad is equipped with the through-hole for limiting rod to pass through.

[0004] The above prior art has the advantages that: the door stopper is equipped with a spring through a support pin, the spring is arranged on the support block in the middle to increase the pre-tightening force of the limiting rod on the limiting box, so that the door stopper and the limiting rod do not loosen after long-term use, and the service life of the door stopper is increased. In addition, a dust pad is added to the limiting box to reduce the entry of dust, mud and other substances into the door stopper.

[0005] The above prior art has the defects that: the spring is actually a torsion spring, and it is laborious and troublesome to install the torsion spring during installation. In addition, although the above-mentioned door stopper has a dust pad, it cannot effectively remove the dust on the limiting rod, so the above-mentioned shortcomings need to be improved. UTILITY MODEL CONTENTS

[0006] The utility model aims at the above problems, and provides an automobile door stopper, which has the advantages of easier installation and better dust removal effect.

[0007] To achieve the above object, the utility model provides the following technical scheme: A car door stopper, including a limit box and the limit rod that sets up in the limit box, the limit rod one end is equipped with the baffle, baffle is equipped with the through groove that limit rod passes through, baffle is fixedly connected with limit rod through the pin shaft, and the buffer pad is equipped between the pin shaft and baffle, a plurality of limit slots are equipped on the limit rod, a sliding groove is equipped on the limit box, the sliding groove is slidably fitted with a connecting rod, the outer periphery of the connecting rod is provided with a limit block matched with the limit slot, a fixed shell is arranged in the limit box, the fixed shell has a guide channel, the outer periphery of the connecting rod is provided with a guide rod matched with the guide channel, a spring is arranged in the guide channel and abuts against the guide rod, a support block is arranged in the limit box to support the limit rod, and a dustproof brush is detachably matched on the limit box.

[0008] Preferably, two mutually symmetrical insertion holes are arranged on the limit box, and a through hole is arranged between the two insertion holes; the dustproof brush comprises a connecting frame and an insertion piece; the connecting frame has a first insertion part, a second insertion part and a connecting part; the first insertion part and the second insertion part are both provided with a first brush body at one end close to each other; the two first brush bodies are respectively in contact with the two side walls of the limit rod; the first insertion part and the second insertion part are respectively inserted into the two insertion holes; the connecting part has a connecting hole; and the insertion piece is inserted into the through hole and the connecting hole.

[0009] Preferably, the insertion piece comprises an insertion rod and a connecting block; the connecting block is integrally formed with the insertion rod; the end of the insertion rod is provided with a convex ring; and the convex ring is made of elastic material.

[0010] Preferably, the diameter of the convex ring is greater than the diameter of the through hole, and the diameter of the insertion rod is less than the diameter of the through hole.

[0011] Preferably, the convex ring has inclined surfaces which are axially distributed and mutually symmetrical along the insertion rod.

[0012] Preferably, an elastic ring is sleeved on the outer periphery of the insertion rod.

[0013] Preferably, the connecting block has a groove.

[0014] Preferably, a fixed block is fixedly arranged in the limit box; the fixed block has a clearance hole through which the limit rod passes; and the inner wall of the clearance hole is provided with a second brush body in contact with the two side walls of the limit rod.

[0015] Preferably, a connecting shaft is arranged on the limit box; the support block is rotatably fitted on the outer periphery of the connecting shaft; and the limit block is rotatably fitted on the outer periphery of the limit block.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides an automotive door limiter. By detachably installing a dust brush on the limiter box, the limiter rod is kept clean at all times. When the dust brush's cleaning effect deteriorates, it can be replaced, ensuring the limiter rod remains clean and making its sliding process smoother. The limiter block is installed on the outer periphery of the connecting rod, which has a guide rod that slides along a guide channel. A spring is used to reset the limiter block and provide preload to the limiter rod, and the spring installation method is quicker. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention from a first-view perspective.

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention from a second perspective.

[0021] Figure 4 This is a three-dimensional structural diagram of the dustproof brush of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the limiting box of this utility model.

[0023] Figure Descriptions: 1. Limiting box; 10. Slide groove; 101. Insertion hole; 102. Through hole; 2. Limiting rod; 20. Limiting groove; 21. Pin; 3. Stop block; 31. Buffer pad; 4. Dustproof brush; 41. Connecting frame; 411. First insertion part; 412. Second insertion part; 413. Connecting part; 42. Insertion piece; 421. Insertion rod; 422. Protruding ring; 423. Inclined surface; 43. First brush body; 44. Elastic ring; 51. Connecting rod; 52. Connecting shaft; 53. Limiting block; 54. Support block; 55. Guide rod; 56. Fixing shell; 560. Guide channel; 57. Spring; 61. Fixing block; 62. Clearance hole; 63. Second brush body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] likeFigures 1-5 As shown, a car door stopper includes a limiting box 1 and a limiting rod 2 arranged in the limiting box 1, the limiting rod 2 is provided with a stop block 3 at one end, the stop block 3 is provided with a through slot for the limiting rod 2 to pass through, the stop block 3 is fixedly connected with the limiting rod 2 through a pin shaft 21, a buffer pad 31 is arranged between the pin shaft 21 and the stop block 3, a plurality of limiting grooves 20 are arranged on the limiting rod 2, a sliding groove 10 is arranged on the limiting box 1, a connecting rod 51 is slidingly matched in the sliding groove 10, a limiting block 53 matched with the limiting groove 20 is arranged on the outer periphery of the connecting rod 51, a fixed shell 56 is arranged in the limiting box 1, the fixed shell 56 has a guide channel 560, a guide rod 55 matched with the guide channel 560 is arranged on the outer periphery of the connecting rod 51, a spring 57 abuttingly matched with the guide rod 55 is arranged in the guide channel 560, the guide rod 55 slides along the guide channel 560 while being reset by the spring 57 and providing pre-tightening force for the limiting rod 2, and the spring 57 only needs to be placed in the guide channel 560, so that installation is more convenient, a supporting block 54 for supporting the limiting rod 2 is arranged in the limiting box 1, a dustproof brush 4 is detachably matched on the limiting box 1, the dustproof brush 4 is used for cleaning dust on the limiting rod 2, so that the surface of the limiting rod 2 is not left with residual dust, the limiting rod 2 moves more smoothly, and the dustproof brush 4 is detachably matched on the limiting box 1, when the dustproof brush 4 is damaged or not good, it can be replaced so that the limiting rod 2 always remains clean.

[0026] Two insertion holes 101 symmetrical to each other are arranged on the limiting box 1, a through hole 102 is arranged between the two insertion holes 101, the dustproof brush 4 includes a connecting frame 41 and an insertion piece 42, the connecting frame 41 has a first insertion part 411, a second insertion part 412 and a connecting part 413, the first insertion part 411 and the second insertion part 412 are both provided with a first brush body 43 at one end close to each other, the two first brush bodies 43 are respectively in contact with the two side walls of the limiting rod 2, the first insertion part 411 and the second insertion part 412 are respectively inserted and matched in the two insertion holes 101, the lower surface of the connecting part 413 is in surface contact with the upper surface of the limiting box 1, the connecting part 413 has a connecting hole, the insertion piece 42 is inserted and matched in the through hole 102 and the connecting hole, and the connecting frame 41 is fixed through the cooperation of the insertion piece 42 and the through hole 102.

[0027] The plug-in part 42 comprises a plug-in rod 421 and a connecting block integrally formed with the plug-in rod 421, the plug-in rod 421 is provided with a convex ring 422 at the end, the convex ring 422 is made of elastic material, the diameter of the convex ring 422 is larger than that of the through hole 102, the diameter of the plug-in rod 421 is smaller than that of the through hole 102, the plug-in rod 421 and the convex ring 422 are inserted into the through hole 102, at this time, the convex ring 422 is deformed by the extrusion of the through hole 102, so as to be inserted into the through hole 102, when the convex ring 422 passes through the through hole 102, the convex ring 422 resets, so as to realize the limiting cooperation between the convex ring 422 and the limiting box 1, and the convex ring 422 is provided with inclined surfaces 423 which are distributed along the axial direction of the plug-in rod 421 and symmetrical to each other, the plug-in rod 421 can be inserted or pulled out better through the inclined surfaces 423, and the inclined surfaces 423 play a guiding role.

[0028] Further optimization, a plurality of elastic rings 44 are arranged on the outer periphery of the plug-in rod 421, when the plug-in rod 421 is located in the through hole 102, the elastic rings 44 are deformed by the extrusion of the inner wall of the through hole 102, so that the elastic rings 44 are in contact with the inner wall of the through hole 102 and increase the friction, so that the plug-in rod 421 is more stable when cooperating with the through hole 102, thereby improving the stability of the connection between the connecting frame 41 and the limiting box 1.

[0029] The connecting block is provided with a groove for increasing the friction, so that the plug-in part 42 can be pulled out better, so that the connecting frame 41 can be disassembled.

[0030] The limiting box 1 is fixedly provided with a fixed block 61, the fixed block 61 is provided with a gap hole 62 for the limiting rod 2 to pass through, and the inner wall of the gap hole 62 is provided with a second brush body 63 in contact with the two side walls of the limiting rod 2.

[0031] The limiting rod 2 is provided with a pin shaft 21, and the pin shaft 21 is in limiting cooperation with the stop block 3.

[0032] Further optimization, the stop block 3 is further provided with a buffer pad 31, and the buffer pad 31 is arranged between the pin shaft 21 and the stop block 3.

[0033] The limiting box 1 is provided with a connecting shaft 52, the supporting block 54 is rotationally fitted on the outer periphery of the connecting shaft 52, the limiting block 53 is rotationally fitted on the outer periphery of the limiting block 53, and the limiting block 53 and the supporting block 54 are both in rolling cooperation with the limiting rod 2, so that the sliding of the limiting rod 2 is more smooth.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A car door stopper, comprising a stop box (1) and a stop rod (2) arranged in the stop box (1), one end of the stop rod (2) is provided with a stop block (3), the stop block (3) is provided with a through slot for the stop rod (2) to pass through, the stop block (3) is fixedly connected with the stop rod (2) through a pin shaft (21), a buffer pad (31) is arranged between the pin shaft (21) and the stop block (3), a plurality of stop grooves (20) are arranged on the stop rod (2), characterized in that: The limiting box (1) is provided with a sliding groove (10), the sliding groove (10) is slidably connected with a connecting rod (51), the connecting rod (51) is provided with a limiting block (53) matched with the limiting groove (20), the limiting box (1) is provided with a fixed shell (56), the fixed shell (56) is provided with a guide channel (560), the connecting rod (51) is provided with a guide rod (55) matched with the guide channel (560), the guide channel (560) is provided with a spring (57) matched with the guide rod (55), the limiting box (1) is provided with a supporting block (54) for supporting the limiting rod (2), and the limiting box (1) is detachably connected with a dustproof brush (4). ​ 2. A vehicle door check according to claim 1, characterised in that: The limiting box (1) is provided with two symmetrical insertion holes (101), and a through hole (102) is arranged between the two insertion holes (101), the dustproof brush (4) comprises a connecting frame (41) and an insertion piece (42), the connecting frame (41) has a first insertion part (411), a second insertion part (412) and a connecting part (413), the first insertion part (411) and the second insertion part (412) are provided with a first brush body (43) at one end close to each other, the two first brush bodies (43) are in contact with the two side walls of the limiting rod (2) respectively, the first insertion part (411) and the second insertion part (412) are inserted into the two insertion holes (101) respectively, and the connecting part (413) is provided with a connecting hole.

3. A vehicle door check according to claim 2, wherein: The insertion piece (42) comprises an insertion rod (421) and a connecting block, the connecting block is integrally formed with the insertion rod (421), and the insertion rod (421) is provided with a convex ring (422) at the end.

4. A vehicle door check according to claim 3, wherein: The diameter of the convex ring (422) is greater than that of the through hole (102), and the diameter of the insertion rod (421) is less than that of the through hole (102).

5. A vehicle door check according to claim 3, wherein: The convex ring (422) is provided with inclined surfaces (423) which are distributed along the axial direction of the insertion rod (421) and symmetrical to each other.

6. A vehicle door check according to claim 3, wherein: The insertion rod (421) is provided with an elastic ring (44) on the outer periphery.

7. A vehicle door check according to claim 3, wherein: The connecting block is provided with a groove.

8. A vehicle door check according to claim 1, wherein: The limiting box (1) is provided with a fixed block (61), the fixed block (61) is provided with a gap hole (62) for the limiting rod (2) to pass through, and the inner wall of the gap hole (62) is provided with a second brush body (63) in contact with the two side walls of the limiting rod (2).

9. The vehicle door check of claim 1 wherein: The limiting box (1) is provided with a connecting shaft (52), and the supporting block (54) is rotatably connected with the outer periphery of the connecting shaft (52).

Citation Information

Patent Citations

  • Automobile door limiting stopper

    CN206448660U