Limiting stopper with excellent noise reduction performance

Abstract

The utility model relates to the technical field of limiters, and provides a limiter with excellent noise reduction performance, which comprises a mounting seat and a rotating shaft, the rotating shaft is arranged in the mounting seat, a limiting arm is arranged on one side of the mounting seat, a dustproof structure is arranged on the outer side of the limiting arm, and a limiting structure is arranged on one side of the dustproof structure. The limiting structure is arranged, when the rotating shaft rotates, the bottom plate drives the limiter box to slide on the limiting arm, the limiter box is limited in the sliding process, the first sliding block and the second sliding block are in sliding contact with the limiting arm, noise generated when the first sliding block and the second sliding block slide is reduced through the noise reduction device, and the noise reduction effect is good. By arranging the first limiting block and the second limiting block, displacement of the first elastic piece and the second elastic piece during working is avoided, abnormal sound generated by friction between the first limiting block and the inner side wall of the limiting stopper box and between the second limiting block and the inner side wall of the limiting stopper box is eliminated, and therefore the good noise reduction performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of limiters, in particular to a limiter with excellent noise reduction performance. Background Art

[0002] A limiter is a safety device used to control the range of mechanical movement. It can ensure that mechanical equipment operates within a specified stroke or position to prevent damage or failure caused by exceeding the predetermined range. A limiter with excellent noise reduction performance is essential to improve the comfort of the working environment and protect the health of operators, so as to improve the quietness of the vehicle interior;

[0003] To this end, the patent with publication number CN203547317U discloses a new type of door limiter, which includes a limit rod, one end of which is connected to the bracket, and the other end of which is provided with a block. A base is provided between the bracket and the block, and a mounting hole for the limit rod to pass through is provided in the center of the base. The base is slidably connected to the limit rod, and two buffer springs are provided on the end surface of the base facing the block, and the buffer springs are located on both sides of the limit rod. The traditional door limiter feeds back to the user an instantaneously increasing reaction force, while the new door limiter designed by the utility model provides an elastic limit: when the user over-opens the door, a uniformly increasing reaction force is fed back to the user until the door cannot be opened further, which can give the user a pleasant door opening experience and help improve the quality of the car.

[0004] During use, the slider and the elastic member of the new door limiter are prone to repeated sliding and friction with the inner wall of the limiter box during the sliding process, causing serious wear, thereby causing abnormal noise when the door is switched. At the same time, it is not convenient to clean the dust on the limiter rod, reducing the service life of the limiter. Utility Model Content

[0005] The utility model aims to provide a stopper with excellent noise reduction performance, so as to solve the defect that the existing stopper is easy to generate abnormal noise.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a stopper with excellent noise reduction performance, comprising a mounting seat and a rotating shaft;

[0007] A rotating shaft is arranged inside the mounting seat, a limiting arm is arranged on one side of the mounting seat, and a dustproof structure is arranged on the outer side of the limiting arm;

[0008] A limiting structure is provided on one side of the dustproof structure, and the limiting structure includes a bottom plate, a limiter box, a first slider, a second slider, a noise reducer, a first limiting block, a first elastic member, a second elastic member, a base and a second limiting block, the bottom plate is provided on one side of the dustproof structure outside the limiting arm, a limiter box is provided on one side of the bottom plate, a first slider is provided on one side of the limiting arm inside the limiter box, a second slider is provided on the other side of the limiting arm inside the limiter box, a noise reducer is provided inside the first slider and the second slider, one end of each of the first slider and the second slider is fixed with a first limiting block, one end of the first slider is provided with a first elastic member, one end of the second slider is provided with a second elastic member, a base is fixed on both sides inside the limiter box, and a second limiting block is fixed on one side of the base;

[0009] Limiting grooves are evenly arranged on the outer side of the limiting arm on one side of the limiter box, and a stopper is arranged at one end of the limiting arm.

[0010] Preferably, one end of the limiting arm passes through the interior of the mounting seat and is fixedly connected to the interior of the rotating shaft, and the other end of the limiting arm passes through the dustproof structure, extends to the outside of the limiting structure, and is fixedly connected to the stopper.

[0011] Preferably, the dustproof structure includes a dustproof plate, a through hole, an opening, a dustproof rubber pad and bristles. The dustproof plate is arranged on the outside of the limiting arm, through holes are arranged on both sides of the inside of the dustproof plate, an opening is arranged at the middle position of the inside of the dustproof plate, a dustproof rubber pad is arranged inside the opening, and bristles are arranged inside the opening.

[0012] Preferably, two groups of through holes are provided, and the through holes are symmetrically distributed on both sides of the dustproof plate, and the outer side of the limiting arm is in conflict with the outer side of the bristles.

[0013] Preferably, one side of the bottom plate is fixedly connected to one side of the dustproof plate, and the first sliding block and the second sliding block are symmetrically distributed on both sides of the limiting arm inside the limiter box.

[0014] Preferably, the first elastic member and the second elastic member are symmetrically distributed inside the limiter box, and the first limit block and the second limit block are symmetrically distributed inside the first elastic member and the second elastic member.

[0015] Preferably, the limiting grooves are arranged in an arc shape, and a plurality of groups of the limiting grooves are arranged, and the limiting grooves are distributed at equal intervals on the outer side of the limiting arm.

[0016] The utility model provides a stopper with excellent noise reduction performance, which has the advantages of:

[0017] By providing a dustproof structure, when the rotating shaft rotates, the limit arm is driven to rotate, so that the dustproof plate slides back and forth on the limit arm. During the sliding process, the bristles can clean the dust on the limit arm to prevent the dust from remaining on the limit arm and scratching the surface of the limit arm, which effectively increases the service life of the limiter;

[0018] By setting a limiting structure, when the shaft rotates, the bottom plate drives the limiter box to slide on the limiter arm. The limiter box is limited during the sliding process, and the first slider and the second slider are in sliding contact with the limiter arm. The noise reducer is provided to reduce the noise generated when the first slider and the second slider slide. The first limiting block and the second limiting block are provided to avoid displacement of the first elastic member and the second elastic member during operation, and eliminate the abnormal noise generated by the friction between the first limiting block and the second limiting block and the inner wall of the limiter box, thereby having excellent noise reduction performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the front cross-sectional structure of the limiting structure of the utility model;

[0022] Figure 4 For the utility model Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the dustproof structure of the utility model.

[0024] Explanation of the reference numerals in the figure: 1. mounting base; 2. rotating shaft; 3. limiting arm; 4. dustproof structure; 401. dustproof plate; 402. through hole; 403. opening; 404. dustproof rubber pad; 405. bristles; 5. limiting structure; 501. bottom plate; 502. limiter box; 503. first slider; 504. second slider; 505. noise reducer; 506. first limiting block; 507. first elastic member; 508. second elastic member; 509. base; 510. second limiting block; 6. limiting groove; 7. stopper. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides a limiter with excellent noise reduction performance, which includes a mounting seat 1 and a rotating shaft 2.

[0027] Reference Figure 1 , Figure 2 and Figure 5 As shown, a rotating shaft 2 is provided inside the mounting seat 1, a limiting arm 3 is provided on one side of the mounting seat 1, one end of the limiting arm 3 passes through the interior of the mounting seat 1 and is fixedly connected to the interior of the rotating shaft 2, a dustproof structure 4 is provided on the outer side of the limiting arm 3, the dustproof structure 4 includes a dustproof plate 401, a through hole 402, an opening 403, a dustproof rubber pad 404 and bristles 405, the dustproof plate 401 is provided on the outer side of the limiting arm 3, through holes 402 are provided on both sides of the inside of the dustproof plate 401, an opening 403 is provided at the middle position of the inside of the dustproof plate 401, a dustproof rubber pad 404 is provided inside the opening 403, a bristle 405 is provided inside the opening 403, two groups of through holes 402 are provided, the through holes 402 are symmetrically distributed on both sides of the inside of the dustproof plate 401, and the outer side of the limiting arm 3 conflicts with the outer side of the bristle 405.

[0028] When the rotating shaft 2 rotates, it drives the limit arm 3 to rotate, so that the dustproof plate 401 slides back and forth on the limit arm 3. During the sliding process, the bristles 405 can clean the dust on the limit arm 3 to prevent the dust from remaining on the limit arm 3 and scratching the surface of the limit arm 3, thereby effectively increasing the service life of the limiter.

[0029] Reference Figure 2-Figure 4As shown, a limiting structure 5 is provided on one side of the dustproof structure 4, and the limiting structure 5 includes a bottom plate 501, a limiter box 502, a first slider 503, a second slider 504, a noise reducer 505, a first limiting block 506, a first elastic member 507, a second elastic member 508, a base 509 and a second limiting block 510. The bottom plate 501 is provided on one side of the dustproof structure 4 outside the limiting arm 3, a limiter box 502 is provided on one side of the bottom plate 501, a first slider 503 is provided on one side of the limiting arm 3 inside the limiter box 502, and a second slider 504 is provided on the other side of the limiting arm 3 inside the limiter box 502, and noise reducers 505 are provided inside the first slider 503 and the second slider 504, and the first limiting block 506 is fixed to one end of the first slider 503 and the second slider 504, and the first elastic member 507 is provided on one end of the first slider 503, and the second elastic member 504 is provided on one end of the second slider 504. 08. A base 509 is fixed on both sides of the inside of the limiter box 502, and a second limit block 510 is fixed on one side of the base 509. One side of the bottom plate 501 is fixedly connected to one side of the dustproof plate 401. The first slider 503 and the second slider 504 are symmetrically distributed on both sides of the limit arm 3 inside the limiter box 502. The first elastic member 507 and the second elastic member 508 are symmetrically distributed inside the limiter box 502. The first limit block 506 and the second limit block 510 are symmetrically distributed inside the first elastic member 507 and the second elastic member 508. Limiting grooves 6 are evenly arranged on the outer side of the limit arm 3 on one side of the limiter box 502. The limiting grooves 6 are arranged in an arc shape. There are several groups of limiting grooves 6. The limiting grooves 6 are evenly distributed on the outer side of the limit arm 3. A stopper 7 is arranged at one end of the limit arm 3. The other end of the limit arm 3 passes through the dustproof structure 4 and extends to the outer side of the limit structure 5 and is fixedly connected to the stopper 7.

[0030] When the shaft 2 rotates, the base plate 501 drives the limiter box 502 to slide on the limiter arm 3. The limiter box 502 is limited during the sliding process. The first slider 503 and the second slider 504 are in sliding contact with the limiter arm 3. The noise reducer 505 is provided to reduce the noise generated when the first slider 503 and the second slider 504 slide. The first limit block 506 and the second limit block 510 are provided to avoid displacement of the first elastic member 507 and the second elastic member 508 during operation, thereby eliminating the abnormal noise generated by the friction between the first limit block 506 and the second limit block 510 and the inner wall of the limiter box 502, thereby having excellent noise reduction performance.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stopper with excellent noise reduction performance, comprising a mounting seat (1) and a rotating shaft (2); Features: A rotating shaft (2) is arranged inside the mounting seat (1), a limiting arm (3) is arranged on one side of the mounting seat (1), and a dustproof structure (4) is arranged on the outer side of the limiting arm (3); A limiting structure (5) is arranged on one side of the dustproof structure (4), and the limiting structure (5) comprises a bottom plate (501), a limiter box (502), a first slider (503), a second slider (504), a noise reducer (505), a first limiting block (506), a first elastic member (507), a second elastic member (508), a base (509), and a second limiting block (510); the bottom plate (501) is arranged on one side of the dustproof structure (4) outside the limiting arm (3), the limiter box (502) is arranged on one side of the bottom plate (501), and the first slider (503) is arranged on one side of the limiting arm (3) inside the limiter box (502). , a second slider (504) is arranged on the other side of the limiting arm (3) inside the limiter box (502), noise reducers (505) are arranged inside the first slider (503) and the second slider (504), a first limiting block (506) is fixed to one end of the first slider (503) and the second slider (504), a first elastic member (507) is arranged at one end of the first slider (503), a second elastic member (508) is arranged at one end of the second slider (504), a base (509) is fixed to both sides inside the limiter box (502), and a second limiting block (510) is fixed to one side of the base (509); Limiting grooves (6) are evenly arranged on the outer side of the limiting arm (3) on one side of the limiter box (502), and a stopper (7) is arranged at one end of the limiting arm (3).

2. A stopper with excellent noise reduction performance according to claim 1, characterized in that: One end of the limiting arm (3) passes through the interior of the mounting seat (1) and is fixedly connected to the interior of the rotating shaft (2), and the other end of the limiting arm (3) passes through the dustproof structure (4), extends to the outside of the limiting structure (5), and is fixedly connected to the stopper (7).

3. A stopper with excellent noise reduction performance according to claim 1, characterized in that: The dustproof structure (4) comprises a dustproof plate (401), a through hole (402), an opening (403), a dustproof rubber pad (404) and bristles (405); the dustproof plate (401) is arranged on the outside of the limiting arm (3); through holes (402) are arranged on both sides of the inside of the dustproof plate (401); an opening (403) is arranged at the middle position of the inside of the dustproof plate (401); a dustproof rubber pad (404) is arranged inside the opening (403); and bristles (405) are arranged inside the opening (403).

4. A stopper with excellent noise reduction performance according to claim 3, characterized in that: Two groups of through holes (402) are provided, and the through holes (402) are symmetrically distributed on both sides inside the dustproof plate (401), and the outer side of the limiting arm (3) is in conflict with the outer side of the bristles (405).

5. The stopper with excellent noise reduction performance according to claim 1, characterized in that: One side of the bottom plate (501) is fixedly connected to one side of the dustproof plate (401), and the first sliding block (503) and the second sliding block (504) are symmetrically distributed on both sides of the limiting arm (3) inside the limiter box (502).

6. The stopper with excellent noise reduction performance according to claim 1, characterized in that: The first elastic member (507) and the second elastic member (508) are symmetrically distributed inside the limiter box (502), and the first limit block (506) and the second limit block (510) are symmetrically distributed inside the first elastic member (507) and the second elastic member (508).

7. The stopper with excellent noise reduction performance according to claim 1, characterized in that: The limiting grooves (6) are arranged in an arc shape, and a plurality of groups of the limiting grooves (6) are arranged. The limiting grooves (6) are distributed at equal intervals on the outer side of the limiting arm (3).

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