Self-lubricating vehicle door limiter

Abstract

The utility model discloses a self-lubricating car door limiter which comprises a car body connecting piece, a self-lubricating device and a self-lubricating device, wherein the car body connecting piece is detachably connected to a car body; one end of the limiting rod is rotationally connected to the vehicle body connecting piece; wherein the limiting rod is provided with a plurality of sunken limiting parts in the length direction; the vehicle door connecting piece is detachably connected to a vehicle door and comprises a shell, a first connecting piece and a second connecting piece, and a through hole penetrating through the shell is formed in the center of the shell; the limiting rod penetrates through the through hole; the elastic limiting pin is arranged in the shell, one end of the elastic limiting pin extends out of the through hole, and the elastic limiting pin elastically abuts against the limiting rod; the elastic limiting pin can be matched and clamped with the plurality of limiting parts respectively; the self-lubricating blocks are embedded in the end face, making contact with the limiting part, of the elastic limiting pin, and the outer surfaces of the self-lubricating blocks are flush with the outer surface of the elastic limiting pin; when the vehicle door connecting piece slides along the limiting rod along with opening and closing of the vehicle door, the self-lubricating block rubs with the limiting rod to lubricate the vehicle door limiter.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, especially relates to a self-lubricating door stopper. BACKGROUND

[0002] The door opening stopper limits the opening degree of the door. On the one hand, it limits the maximum opening degree of the door to prevent the door from opening too much, and on the other hand, it keeps the door open when needed, such as when the car is parked on a slope or the wind is strong, the door will not automatically close.

[0003] The existing door stopper needs to be frequently coated with lubricating grease for maintenance to keep lubrication, otherwise it will cause abnormal noise when opening the door, and even cause excessive wear of the door stopper, affecting the service life of the door stopper. UTILITY MODEL CONTENTS

[0004] The utility model discloses a self-lubricating door stopper, which is provided with a self-lubricating block on the elastic limit pin, so that the door stopper can be self-lubricated, and the maintenance requirement of the door stopper is reduced under the premise of ensuring the normal use of the door stopper.

[0005] The utility model provides a technical scheme:

[0006] A self-lubricating door stopper, comprising:

[0007] A vehicle body connecting piece is detachably connected to the vehicle body;

[0008] A limit rod is rotatably connected to the vehicle body connecting piece at one end;

[0009] The limit rod has a plurality of recessed limit portions along the length direction;

[0010] A door connecting piece is detachably connected to the door and comprises:

[0011] A shell has a through hole passing through the shell at the center position;

[0012] The limit rod passes through the through hole;

[0013] An elastic limit pin is arranged in the shell and protrudes from the through hole at one end, and elastically abuts against the limit rod;

[0014] The elastic limit pin can be matched and clamped with the plurality of limit portions respectively;

[0015] A plurality of self-lubricating blocks are embedded on the end surface of the elastic limit pin and the limit portion in contact, and the outer surface of the self-lubricating block is flush with the outer surface of the elastic limit pin;

[0016] When the door connecting piece slides along the limiting rod with the opening and closing of the door, the self-lubricating block realizes the lubrication of the door limiter by rubbing against the limiting rod.

[0017] Preferably, each of the limiting portions is composed of arc-shaped recesses symmetrically arranged on the upper and lower sides of the limiting rod.

[0018] Preferably, the elastic limiting pins are two, respectively corresponding to the two arc-shaped recesses of the limiting portions.

[0019] Preferably, the number of the limiting portions is three.

[0020] Preferably, the elastic limiting pin comprises:

[0021] an end plate, the outer surface of which is matched with the shape of the arc-shaped recess;

[0022] wherein the self-lubricating block is embedded on the end plate;

[0023] a spring support seat, which is columnar and fixedly connected to the inner side of the end plate;

[0024] a spring, one end of which is sleeved on the spring support seat and the other end of which abuts against the end face of the shell.

[0025] Preferably, the self-lubricating door limiter further comprises:

[0026] a guide block, which is fixedly connected to one side of the spring support seat;

[0027] wherein a guide rail is fixedly arranged on the inner wall of the shell, the guide rail is arranged along the axial direction of the spring, and the guide block is matchedly connected to the guide rail.

[0028] Preferably, the self-lubricating block is columnar.

[0029] Preferably, the self-lubricating block is made of graphite material or molybdenum disulfide material.

[0030] Preferably, the self-lubricating door limiter further comprises:

[0031] a limiting head, which is fixedly connected to the other end of the limiting rod, the size of the limiting head being greater than that of the through hole.

[0032] Preferably, a flexible buffer pad is fixedly arranged on the end of the limiting head facing the door connecting piece.

[0033] The self-lubricating door limiter has the advantages that:

[0034] The self-lubricating car door limiter provided by the utility model can realize self-lubrication of the car door limiter, and reduces the maintenance requirement of the car door limiter under the premise of ensuring normal use of the car door limiter. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The utility model discloses a self-lubricating car door limiter's overall structure schematic view.

[0036] Figure 2 The utility model discloses a self-lubricating car door limiter's overall structure schematic view.

[0037] Figure 3 The utility model discloses a self-lubricating car door limiter's overall structure schematic view.

[0038] Figure 4 The utility model discloses a self-lubricating car door limiter's overall structure schematic view. Specific implementation

[0039] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0040] As Figures 1-4 The utility model provides a self-lubricating car door limiter, and it mainly includes: car body connecting piece 110, limiting rod 120 and car door connecting piece 130.

[0041] Car body connecting piece 110 is detachably fixedly connected on the car body through the bolt.The one end of limiting rod 120 is rotatably connected on car body connecting piece 110 through pin shaft 111, and limiting rod 120 rotates with the car door relative to car door connecting piece 110 when the car door opens or closes.Limiting rod 120 has a plurality of concave limiting parts 121 on the length direction of limiting rod 120.The other end of limiting rod 120 is provided with limiting head 122.

[0042] Car door connecting piece (limiting box) 130 is detachably fixedly connected on the car door.Car door connecting piece 130 includes: shell 131, elastic limiting pin 132 and a plurality of self-lubricating blocks 133.

[0043] A through hole 131a is formed in the center of the shell 131 and penetrates the shell 131; the limiting rod 120 passes through the through hole 131a. The shell 131 is fixedly connected with a screw rod 131b at each end, and the screw rod 131b can pass through the frame of the door. A nut is installed on the screw rod 131b to realize the connection between the door connecting piece 130 and the door. The elastic limiting pin 132 is arranged in the shell 131, and one end of the elastic limiting pin 132 protrudes from the through hole 131a and elastically abuts against the limiting rod 120. The elastic limiting pin 132 can be matched and clamped with the plurality of limiting portions 121 respectively, thereby limiting the different opening degrees (angles) of the door.

[0044] The size of the limiting head 122 is greater than the size of the through hole 131a, so as to limit the limit position of the opening of the door. As a preferred embodiment, a flexible buffer pad 122a is fixedly arranged at the end of the limiting head 122 facing the door connecting piece 130, thereby playing a role of anti-collision protection. The flexible buffer pad 122a can be made of rubber or polyurethane.

[0045] A plurality of self-lubricating blocks 133 are embedded on the end face of the elastic limiting pin 132 in contact with the limiting portion 121, and the outer surface of the self-lubricating block 133 is flush with the outer surface of the elastic limiting pin 132.

[0046] When the door connecting piece 130 slides along the limiting rod 120 with the opening and closing of the door, the self-lubricating block 133 rubs against the limiting rod 120 to realize the lubrication of the door limiter.

[0047] As a preferred embodiment, each limiting portion 121 is composed of an arc-shaped recess arranged symmetrically on the upper and lower sides of the limiting rod 120. Correspondingly, the elastic limiting pin 132 is provided with two elastic limiting pins corresponding to the two arc-shaped recesses of the limiting portion 121.

[0048] In the embodiment, the number of limiting portions 121 is three, that is, three limiting positions of the opening of the door can be realized.

[0049] As a preferred embodiment, the elastic limiting pin 132 comprises an end plate 132a, a spring support seat 132b and a spring.

[0050] The outer surface of the end plate 132a matches the shape of the arc-shaped recess, and the self-lubricating block 133 is embedded on the end plate 132a. The spring support seat 132b is columnar and fixedly connected to the inner side of the end plate 132a. The spring is a cylindrical spring, one end of which is sleeved on the spring support seat, and the other end abuts against the end face of the shell 131 (the end face opposite to the inner side of the end plate 132a).

[0051] As a further preferred, the elastic limit pin 132 further comprises a guide block 132c and two limit plates 132d. The guide block 132 is fixedly connected to one side of the spring support seat 132a; wherein a guide rail is fixedly arranged on the inner wall of the shell 131, the guide rail is arranged along the axial direction of the spring, the guide block 132c is matched and connected on the guide rail through the groove, and can slide along the guide rail, and the movement of the elastic limit pin 132 is guided, thereby ensuring the stability of the door stopper. The two limit plates 132d are respectively connected to the two ends of the guide block 132c and are fixedly connected with the end plate 132a. Wherein, one end of the limit plate 132d protrudes from the outer surface of the end plate 132a, and the two limit plates 132d of the same elastic limit pin 132 are respectively located on the two sides of the limiting rod 120 and are not in contact with the limiting rod 120. The limit plates 132d of the two elastic limit pins 132 abut against each other, so that the end faces 132a of the two elastic limit pins 132 form a gap, so as to prevent the elastic limit pin 132 from excessively extruding the limiting rod 120, thereby causing excessive opening door resistance; and the stability of the elastic limit pin 132 can be further improved.

[0052] As a preferred, the self-lubricating block 133 is cylindrical; a plurality of self-lubricating blocks 133 are arrayed and uniformly arranged on the end plate 132a.

[0053] As a further preferred, the self-lubricating block 133 is made of graphite material or molybdenum disulfide material. The self-lubricating block can also be made of other solid self-lubricating materials.

[0054] The self-lubricating door stopper provided by the utility model can realize self-lubrication of the door stopper by arranging the self-lubricating block on the elastic limit pin, reduce the frequency of applying lubricating grease, even without applying lubricating grease, thereby reducing the maintenance requirement of the door stopper and prolonging the service life of the door stopper.

[0055] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, it can be fully applied to various fields suitable for the utility model, and other modifications can be easily realized by those skilled in the art, therefore, the utility model is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A self-lubricating door check, characterized in that, The utility model relates to a vehicle door stopper, which comprises: a vehicle body connecting piece detachably connected to a vehicle body; a limiting rod having one end rotatably connected to the vehicle body connecting piece; wherein the limiting rod has a plurality of concave limiting portions along the length direction of the limiting rod; a vehicle door connecting piece detachably connected to a vehicle door, which comprises: a shell having a through hole passing through the shell at the center position of the shell; wherein the limiting rod passes through the through hole; a spring limiting pin arranged in the shell and having one end protruding from the through hole and elastically abutting against the limiting rod; wherein the spring limiting pin can be matched and clamped with the plurality of limiting portions respectively; a plurality of self-lubricating blocks embedded on the end surface of the spring limiting pin in contact with the limiting portions, the outer surface of the self-lubricating blocks being flush with the outer surface of the spring limiting pin; when the vehicle door connecting piece slides along the limiting rod with the opening and closing of the vehicle door, the self-lubricating blocks realize the lubrication of the vehicle door stopper by rubbing against the limiting rod.

2. The self-lubricating door check of claim 1, wherein, Each of the limiting portions is composed of arc-shaped concave portions symmetrically arranged on the upper and lower sides of the limiting rod.

3. The self-lubricating door check of claim 2, wherein, The spring limiting pin is two, corresponding to the two arc-shaped concave portions of the limiting portions respectively.

4. The self-lubricating door check of claim 3, wherein, The number of the limiting portions is three.

5. A self-lubricating door check according to claim 2 or 3, wherein, The spring limiting pin comprises: an end plate, the outer surface of which is matched with the shape of the arc-shaped concave portion; wherein the self-lubricating blocks are embedded on the end plate; a spring support seat in a columnar shape, fixedly connected to the inner side of the end plate; a spring, one end of which is sleeved on the spring support seat and the other end of which abuts against the end surface of the shell.

6. The self-lubricating door check of claim 5, wherein, Further comprising: a guide block fixedly connected to one side of the spring support seat; wherein a guide rail is fixedly arranged on the inner wall of the shell, the guide rail being arranged along the axial direction of the spring, and the guide block being matched and connected to the guide rail.

7. The self-lubricating door check of claim 6, wherein, The self-lubricating blocks are in a cylindrical shape.

8. The self-lubricating door check of claim 7, wherein, The self-lubricating blocks are made of graphite or molybdenum disulfide.

9. The self-lubricating door check of claim 8, wherein, Further comprising: a limiting head fixedly connected to the other end of the limiting rod, the size of the limiting head being greater than the size of the through hole.

10. The self-lubricating door check of claim 9, wherein, A flexible buffer pad is fixedly arranged on the end of the limiting head facing the vehicle door connecting piece.

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