阅读说明：本技术 一种车门开启限位器的排尘结构 (Dust exhaust structure of door opening limiter ) 是由 唐小艳 于 2020-07-16 设计创作，主要内容包括：本发明提供了一种车门开启限位器的排尘结构,属于汽车零部件技术领域。它解决了现有车门开启限位器存在异响和卡顿的问题。本限位器包括限位臂,限位臂上间隔设有若干个限位凹坑,排尘结构包括若干个设置在限位臂上的排尘槽,排尘槽的内端延伸至限位凹坑的中间处,排尘槽的外端贯穿限位臂的侧部,沿排尘槽的内端朝向外端的方向,排尘槽的槽底朝限位臂厚度方向的中间倾斜设置。本车门开启限位器的排尘结构具有避免限位凹坑积累沙尘导致异响的优点。(The invention provides a dust exhaust structure of a vehicle door opening limiter, and belongs to the technical field of automobile parts. It has solved the problem that current door is opened stopper and is had abnormal sound and card pause. This stopper includes spacing arm, and the interval is equipped with the spacing pit of a plurality of on the spacing arm, and the dust exhaust structure includes that a plurality of sets up the dust exhaust groove on spacing arm, and the inner in dust exhaust groove extends to the middle department of spacing pit, and the lateral part of spacing arm is run through to the outer end in dust exhaust groove, along the direction of the inner towards the outer end in dust exhaust groove, and the tank bottom in dust exhaust groove sets up towards the middle slope of spacing arm thickness direction. This dust exhaust structure of door opening stopper has the advantage of avoiding spacing pit accumulation dust and sand to lead to abnormal sound.)

1. The utility model provides a door opens dust exhaust structure of stopper, stopper include spacing arm (1), its characterized in that, spacing arm (1) is gone up the interval and is equipped with spacing pit (2) of a plurality of, the dust exhaust structure includes dust exhaust groove (4) that a plurality of set up on spacing arm (1), the inner of dust exhaust groove (4) extends to the centre department of spacing pit (2), the lateral part of spacing arm (1) is run through to the outer end of dust exhaust groove (4), along the inner orientation of outside end of dust exhaust groove (4), the tank bottom of dust exhaust groove (4) sets up towards the centre slope of spacing arm (1) thickness direction.

2. The dust exhaust structure of the vehicle door opening limiter according to claim 1, wherein each limiting pit (2) is communicated with two dust exhaust grooves (4), a space is formed between the inner ends of the two dust exhaust grooves (4), and the outer ends of the two dust exhaust grooves (4) respectively penetrate through two side parts of the limiting arm (1).

3. The dust exhaust structure of the vehicle door opening limiter according to claim 1 or 2, wherein the limiting pit (2) comprises a first limiting part (21) and a second limiting part (22) which is arranged outside the first limiting part (21) and is annular, the surface of the first limiting part (21) is planar, and the surface of the second limiting part (22) is an arc-shaped surface which is concave in an arc shape.

4. The dust exhaust structure of the vehicle door opening limiter according to claim 3, wherein the surface of the first limiting portion (21) is circular or elliptical, and the second limiting portion (22) is circular or elliptical.

5. The dust exhaust structure of a door opening stopper according to claim 3, wherein the inner end of the dust exhaust groove (4) penetrates the second stopper portion (22) and extends to the middle of the first stopper portion (21).

6. A dust exhausting structure of a door opening stopper according to claim 1 or 2, wherein the stopper recess (2) has a sliding portion (3) extending outward in a circumferential direction, and the sliding portion (3) makes the stopper recess (2) smoothly transit to an outer side wall of the stopper arm (1).

7. A dust exhausting structure of a door opening stopper according to claim 6, wherein the width of the sliding portion (3) is 0.5 to 1.5 times the width of the stopper recess (2) in the length direction of the stopper arm (1).

8. A dust exhausting structure of a door opening stopper according to claim 1 or 2, wherein the depth of the stopper dent (2) is 0.1 to 0.14 times the thickness of the stopper arm (1) where the stopper dent (2) is located.

9. The dust exhaust structure of the door opening limiter according to claim 1 or 2, wherein the limiting arm (1) comprises an inner metal core (11) and a plastic-coated sleeve (12) coated outside the metal core (11), a pair of convex strips (13) which are convex and symmetrically arranged are arranged on the plastic-coated sleeve (12), the convex strips (13) and the plastic-coated sleeve (12) are of an integral structure, the convex strips (13) are arranged along the length direction of the limiting arm (1), and the limiting pits (2) and the dust exhaust grooves (4) are arranged on the convex strips (13).

10. The dust exhaust structure of the vehicle door opening limiter according to claim 9, wherein along the width direction of the limiting arm (1), the width of the convex strip (13) is smaller than that of the plastic-coated sleeve (12), an accommodating space (5) is arranged between each of two side faces of the convex strip (13) and the plastic-coated sleeve (12), and the outer end of the dust exhaust groove (4) is communicated with the accommodating space (5).

Technical Field

The invention belongs to the technical field of automobile parts and relates to a dust exhaust structure of a door opening limiter.

Background

The automobile comprises a door stopper, wherein the door stopper is used as a part for limiting the opening degree of the automobile door, on one hand, the door stopper can limit the maximum opening degree of the automobile door and prevent the automobile door from being opened too much, on the other hand, the door stopper can enable the automobile door to be kept in a positioning state after being opened when needed, and the automobile door cannot be automatically closed when the automobile stops on a ramp or blows general wind.

Conventional automobile door stoppers, for example, chinese patent literature discloses a dust-proof type door opening stopper [ application No.: 201910130804.6, respectively; application publication No.: CN109826517A ], which comprises a limit arm assembly rotatably disposed on the vehicle body and a limit box assembly fixed on the vehicle door and slidably connected with the limit arm assembly, wherein the limit box assembly can slide along the axis direction of the limit arm assembly, a flexible dust cover is disposed at one end of the limit arm assembly for connecting with the vehicle body, and a sealing cavity for sealing connection with the vehicle door is formed inside the flexible dust cover.

This kind of stopper of structure, the cover is moulded including setting up the steel core in inside and the cladding outside the steel core to spacing arm assembly, be equipped with a plurality of draw-in groove on the cover is moulded to the cladding, the both ends of draw-in groove are run through the both sides wall of covering and moulding the cover, the bottom of draw-in groove is flat, the in-process of use, sand and dust can drop in the bottom of draw-in groove, although sand and dust can move towards the both ends of draw-in groove after receiving spacing slider's extrusion, but because the bottom of draw-in groove is flat, sand and dust is not ideal enough towards the removal effect of both sides, after using a period, there is the problem of wearing and tearing in spacing slider and spacing arm's contact surface, there. Simultaneously the both sides wall of this kind of structure stopper's draw-in groove is comparatively precipitous, and the degree of depth of draw-in groove is darker, and when spacing slider moved over the draw-in groove along spacing arm promptly, there was great card pause problem, made the door switch smooth and easy inadequately.

Disclosure of Invention

The invention aims to provide a dust exhaust structure of a vehicle door opening limiter aiming at the problems in the prior art, and solves the technical problem of how to avoid abnormal sound caused by accumulated dust in a limiting pit.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a door opens dust exhaust structure of stopper, stopper include spacing arm, the interval is equipped with the spacing pit of a plurality of on the spacing arm, dust exhaust structure includes the dust exhaust groove of a plurality of setting on spacing arm, the inner of dust exhaust groove extends to the centre department of spacing pit, the lateral part of spacing arm is run through to the outer end in dust exhaust groove, along the inner orientation of dust exhaust groove to the outer end, the tank bottom in dust exhaust groove sets up towards the centre slope of spacing arm thickness direction.

The stopper includes spacing slider, and spacing slider removes along spacing arm, and during spacing pit was removed to spacing slider, made the door location, the door can not open automatically or close. In the use, spacing pit department can set up lubricating grease, sand and dust etc. can fall into spacing pit, this dust exhaust structure sets up the dust exhaust groove in the lateral part of spacing pit, spacing slider can produce the extrusion when sliding in spacing pit, make sand and dust move to the outside, the tank bottom slope in this dust exhaust groove sets up, make that sand and dust can be better extrude away, avoid the problem that spacing pit accumulation sand and dust leads to the abnormal sound, reduce the wearing and tearing of spacing slider and spacing arm simultaneously. The inner of dust exhaust groove extends to the middle of the limiting pit, so that sand and dust can enter the dust exhaust groove more quickly, the problem that the limiting pit accumulates sand and dust to cause abnormal sound is avoided, and the abrasion of the limiting sliding block and the limiting arm is further reduced.

In the dust exhaust structure of the vehicle door opening limiter, each limiting concave pit is communicated with two dust exhaust grooves, an interval is arranged between the inner ends of the two dust exhaust grooves, and the outer ends of the two dust exhaust grooves penetrate through the two side parts of the limiting arm respectively. The dust in the limiting pits is discharged towards two sides, so that the dust is not easy to accumulate in the limiting pits, the dust discharging efficiency is improved, and the problem that the abnormal sound is caused due to the accumulation of the dust in the limiting pits is avoided.

In foretell dust exhaust structure of stopper is opened to door, spacing pit includes first spacing portion and sets up the spacing portion that is annular second outside first spacing portion, the surface of first spacing portion is plane, the surface of the spacing portion of second is for being the concave arcwall face of arc. The shape size and the spacing slider phase-match of first spacing portion and the spacing portion of second, the surface of first spacing portion is planar, and the surface of the spacing portion of second improves the area of contact of spacing slider and spacing arm for being the concave arcwall face of arc, improves the stability of spacing slider and spacing arm contact to make the stability of door location good.

In the dust exhaust structure of the vehicle door opening limiter, the surface of the first limiting part is circular or elliptical, and the second limiting part is circular or elliptical. The contact area between the limiting slide block and the limiting arm is increased, and the contact stability between the limiting slide block and the limiting arm is improved, so that the positioning stability of the vehicle door is good.

In the dust exhaust structure of the vehicle door opening limiter, the inner end of the dust exhaust groove penetrates through the second limiting part and extends to the middle of the first limiting part. The surface of first spacing portion is planar, and the inner in dust exhaust groove runs through the spacing portion of second and extends to the middle department of first spacing portion, makes the recess groove that sets up of first spacing portion department production, makes the dust and sand can be better enter into the dust exhaust groove, avoids spacing pit accumulation dust and leads to the problem of abnormal sound.

In the dust exhaust structure of the vehicle door opening limiter, the limiting concave pit is circumferentially provided with a sliding part extending outwards, and the sliding part enables the limiting concave pit and the outer side wall of the limiting arm to be in smooth transition. The lateral wall smooth transition of sliding part messenger spacing pit and spacing arm, spacing slider removes to enter into spacing pit promptly has one section buffer segment, and spacing slider is deepened gradually, and spacing slider removes steadily to obvious card pause problem can not appear when the switch door, abnormal sound can not appear, and the door switch is smooth and easy.

In the dust exhaust structure of the vehicle door opening limiter, the width of the sliding part is 0.5 to 1.5 times of the width of the limiting concave pit along the length direction of the limiting arm. The width broad of sliding part makes the relative spacing arm of spacing slider remove steadily to obvious card pause problem can not appear when the switch door, and the door switch is smooth and easy.

In the dust exhaust structure of the vehicle door opening limiter, the depth of the limiting concave pit is 0.1-0.14 times of the thickness of the limiting arm at the position of the limiting concave pit. The depth of the limiting concave pit is shallow when the positioning stability of the vehicle door is ensured, so that the limiting sliding block can move stably, the obvious blocking problem can not occur when the vehicle door is opened and closed, and the vehicle door can be opened and closed smoothly.

In foretell dust exhaust structure of stopper is opened to door, spacing arm includes that inside metal core and cladding are moulded the cover at the outer package of metal core, the sand grip that has a pair of protrusion and symmetry setting on the package is moulded, sand grip and package are moulded cover formula structure as an organic whole, the length direction setting of spacing arm is followed to the sand grip, spacing pit all sets up on the sand grip with the dust exhaust groove. The plastic-coated sleeve and the raised line can be formed by injection molding, the limiting pit and the dust exhaust groove are both arranged in the raised line, and the plastic-coated sleeve and the raised line can be formed in one step by injection molding, so that the processing is convenient and the processing precision is high; the setting of sand grip has compensatied the degree of depth of spacing pit, guarantees spacing slider's elasticity and stability, stability when improving the door location.

In foretell dust exhaust structure that stopper was opened to door, along the width direction of spacing arm, the width of sand grip is less than the width of package plastic sheath, sand grip both sides face and package plastic sheath between all have accommodation space, the outer end and the accommodation space in dust exhaust groove are linked together. Accommodation space's setting makes the sand grip can not bump with other spare parts, simultaneously, and husky dirt can discharge accommodation space along dust exhaust groove, and husky dirt can not exist and is plugged up unable exhaust problem, guarantees the spacing pit of husky dirt can discharge, avoids the problem that spacing pit accumulation husky dirt leads to the abnormal sound.

In the dust exhaust structure of the vehicle door opening limiter, one end of the convex strip is provided with a guide surface which is obliquely arranged. The limiting slide block moves along the guide surface, so that the influence caused by the height of the raised part of the raised strip is eliminated, and the opening and closing of the vehicle door are smooth.

Compared with the prior art, the dust exhaust structure of the vehicle door opening limiter provided by the invention has the following advantages:

1. this stopper is opened to door modifies the structure of spacing pit, increases the tank bottom slope setting in dust exhaust groove and dust exhaust groove, makes that husky dirt can be better discharged, avoids the problem that spacing pit deposition leads to the abnormal sound.

2. The vehicle door opening limiter modifies the structure of the limiting pit, the dust exhaust groove is added, and the groove bottom of the dust exhaust groove is obliquely arranged, so that the vehicle door can be opened and closed smoothly without the problem of blockage; through experimental detection: when the limiter with the dust exhaust structure is used, the endurance times of the opening and closing door with abnormal sound are 13.3 ten thousand times, which is higher than other limiters of the same type.

3. The door opening limiter avoids the problems of cost increase and difficulty in arrangement caused by the addition of a dust cover; the problem that the high-mileage ppm value of the stopper after sale is high is solved on the premise of not increasing the cost and the spatial arrangement, and the quality of the whole vehicle is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present door opening stopper.

Fig. 2 is a schematic structural view of the door opening limiter limiting slide block embedded into the limiting pit.

Fig. 3 is a schematic view of the dust exhaust structure of the present door opening stopper.

Fig. 4 is a longitudinal sectional view of the door opening stopper arm according to the present invention.

Fig. 5 is a cross-sectional view of the present door opening stopper arm in the width direction.

In the figure, 1, a limiting arm; 11. a metal core; 12. wrapping with a plastic sleeve; 13. a convex strip; 2. limiting the pit; 21. a first limiting part; 22. a second limiting part; 3. a sliding part; 4. a dust exhaust groove; 5. an accommodating space; 6. a guide surface; 7. a limit box assembly; 71. and a limiting sliding block.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the stopper includes a stopper arm 1 and a stopper box assembly 7, and the stopper box assembly 7 includes a stopper slider 71, and the stopper slider 71 can slide along the stopper arm 1.

As shown in fig. 4 and 5, the limiting arm 1 includes an inner metal core 11 and a plastic-coated sleeve 12 coated outside the metal core 11, a pair of protruding strips 13 protruding and symmetrically arranged are provided on the plastic-coated sleeve 12, the protruding strips 13 and the plastic-coated sleeve 12 are of an integrated structure, the protruding strips 13 are arranged along the length direction of the limiting arm 1, and one end of the protruding strips 13 is provided with a guide surface 6 obliquely arranged. Set up spacing pit 2 and dust exhaust groove 4 on the sand grip 13, this embodiment sets up three spacing pit 2 on one sand grip 13, and wherein two spacing pits 2 that are close to the door all link to each other with two dust exhaust grooves 4, and the third spacing pit 2 of keeping away from the door does not set up dust exhaust groove 4, and in actual production, the quantity of spacing pit 2 can be two or four. Along the width direction of spacing arm 1, the width of sand grip 13 is less than the width of plastic-coated cover 12, all has accommodation space 5 between sand grip 13 both sides face and the plastic-coated cover 12.

As shown in fig. 3, the circumferential direction of the limiting pit 2 has a sliding part 3 extending outward, and the sliding part 3 makes the limiting pit 2 and the outer side wall of the limiting arm 1 smoothly transition, in this embodiment, along the length direction of the limiting arm 1, the width of the sliding part 3 is 1 time of the width of the limiting pit 2, the depth of the limiting pit 2 is 0.12 time of the thickness of the limiting arm 1 at the position of the limiting pit 2, in actual production, the width of the sliding part 3 may be 0.5 time or 1.5 time of the width of the limiting pit 2, and the depth of the limiting pit 2 is 0.1 time or 0.14 time of the thickness of the limiting arm 1 at the position of the limiting pit 2.

Spacing pit 2 includes first spacing portion 21 and sets up the spacing portion 22 of annular second that is outside first spacing portion 21, and the surface of first spacing portion 21 is planar, and the surface of the spacing portion 22 of second is for being the concave arcwall face of arc, and in this embodiment, the surface of first spacing portion 21 is circular, and the spacing portion 22 of second is oval cyclic annular, and in actual production, the surface of first spacing portion 21 is oval, and the spacing portion 22 of second is the ring form. Every spacing pit 2 all is linked together with two dust exhaust groove 4, and the inner of dust exhaust groove 4 runs through the spacing portion 22 of second and extends to the middle department of first spacing portion 21, has the interval between the inner of two dust exhaust groove 4, and the both sides portion of spacing arm 1 is run through respectively to the outer end of two dust exhaust groove 4, specifically, is that the outer end of dust exhaust groove 4 runs through the lateral part of sand grip 13, and the outer end and the accommodation space 5 of dust exhaust groove 4 are linked together. Along the direction that the inner end of dust exhaust groove 4 is towards the outside end, the tank bottom of dust exhaust groove 4 sets up towards the centre of spacing arm 1 thickness direction slope.

When the vehicle door is opened, the limiting slide block 71 slides relative to the limiting wall, the limiting slide block 71 slides along the sliding part 3 and then is embedded into the limiting concave pit 2, and the limiting concave pit 2 positions the limiting slide block 71, so that the vehicle door is opened and positioned, and in the process, the limiting slide block 71 is in contact with the surface of the limiting concave pit 2 to extrude sand and dust into the dust exhaust grooves 4 on two sides.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the limiting arm 1, the metal core 11, the plastic-coated sleeve 12, the convex strip 13, the limiting pit 2, the first limiting part 21, the second limiting part 22, the sliding part 3, the dust exhaust groove 4, the accommodating space 5, the guide surface 6 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.