Sliding door positioning buffer buckle and automobile

Abstract

The present invention discloses a sliding door positioning buffer buckle and a car. The sliding door positioning buffer buckle includes a first buckle and a second buckle. When the sliding door is closed, the buckle top pin of the first buckle is inserted into the top pin insertion hole of the second buckle, and the sliding seat of the second buckle is acted on to move deeper in the outer sleeve. The first elastic buffer element reacts to the sliding seat to play a shock-absorbing and buffering role. At the same time, the buckle base of the first buckle is covered with a buffer pad. When the first buckle contacts the end of the outer sleeve, the buffer pad further plays a shock-absorbing and buffering role, thereby improving the shock-absorbing performance of the product, reducing noise, and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile sliding door positioning, and in particular to a sliding door positioning buffer buckle and an automobile. Background Art

[0002] Sliding doors are commonly found on mid-to-large vehicles like MPVs. The front end of the sliding door features a latch, and corresponding locking structures are located on the vehicle's side panels (e.g., the B-pillars). When the sliding door slides to the front, the latch engages with the locking structure, locking the door. However, the forward impact of the sliding door is insufficiently cushioned, resulting in a loud closing noise, and the user experience needs improvement.

[0003] In view of this, it is necessary to provide a sliding door positioning and buffering buckle and a vehicle that can provide positioning and buffering for the closing of the sliding door. Summary of the Invention

[0004] The purpose of the present invention is to provide a sliding door positioning buffer buckle and a car. When the sliding door is closed, the sliding door positioning buffer buckle can provide positioning and buffering functions, improve shock absorption performance, reduce noise, and enhance user experience.

[0005] The technical solution of the present invention provides a sliding door positioning buffer buckle, comprising a first buckle for connecting with the door sheet metal and a second buckle for connecting with the vehicle body side panel;

[0006] The first buckle includes a buckle base for connecting to the door sheet metal, a buckle top pin connected to the buckle base, and a buffer pad sleeved on the buckle base, wherein the buckle top pin passes through the buffer pad and extends toward the second buckle;

[0007] The second buckle includes an outer sleeve for connecting to the vehicle body side, an inner sleeve connected to the outer sleeve bottom plate of the outer sleeve and located in the outer sleeve, a first elastic buffer element installed between the outer sleeve and the inner sleeve, and a sliding seat with a clearance fit in the outer sleeve;

[0008] The sliding seat includes a slider and a guide sleeve connected to the slider, the slider is loosely fitted in the outer sleeve, the radius of the slider is greater than the radius of the inner sleeve, the slider is located outside the inner sleeve, the first elastic buffer element is connected to the slider, and the guide sleeve is loosely fitted in the inner sleeve;

[0009] The inner sleeve bottom plate is provided with a guide post, and the guide post is loosely fitted in the guide sleeve;

[0010] The sliding block is provided with a push pin insertion hole, and the buckle push pin is pluggable and inserted into the push pin insertion hole.

[0011] In one of the optional technical solutions, along the extension direction of the buckle ejector pin, the radius of the buckle ejector pin gradually decreases, and the radius of the ejector pin insertion hole also gradually decreases.

[0012] In one of the optional technical solutions, the guide sleeve is connected to the ejector pin socket;

[0013] When the buckle ejector pin is inserted into the ejector pin insertion hole, the end of the buckle ejector pin is inserted into the central hole of the guide sleeve.

[0014] In one of the optional technical solutions, the buffer pad includes a card slot, and the notch of the card slot is located on the bottom surface of the buffer pad;

[0015] The snap base includes a base body and a base connecting portion connected to the base body;

[0016] The base body is located in the slot, and the base connection portion is located in the notch.

[0017] In one of the optional technical solutions, the buckle ejector pin and the buckle base are integrally formed.

[0018] In one of the optional technical solutions, a connecting flange is provided around the barrel opening of the outer sleeve.

[0019] In one of the optional technical solutions, an internal threaded hole is provided on the bottom plate of the outer sleeve;

[0020] A bottom plate retaining ring is provided on the circumferential surface of the bottom plate of the inner sleeve, and the radius of the bottom plate retaining ring is larger than the radius of the internal threaded hole;

[0021] An external thread is provided on the outer surface of the inner sleeve, and the inner sleeve passes through the internal threaded hole and is threadedly connected to the internal threaded hole;

[0022] The bottom plate retaining ring is located on the outside of the bottom plate of the outer sleeve.

[0023] In one of the optional technical solutions, a barrel mouth retaining ring is provided in the barrel mouth of the inner sleeve;

[0024] The guide sleeve is provided with a stopper protrusion at the mouth end thereof;

[0025] The barrel mouth retaining ring is provided with a retaining ring opening for the stop protrusion to pass through;

[0026] The stop convex block is loosely fitted in the inner sleeve and is located between the inner sleeve bottom plate and the barrel mouth retaining ring. The stop convex block and the retaining ring opening are staggered.

[0027] In one of the optional technical solutions, a second elastic buffer element is connected to the bottom plate of the inner sleeve;

[0028] When the guide sleeve moves a preset distance in the inner sleeve toward the inner sleeve bottom plate side, the stop protrusion presses the second elastic buffer element.

[0029] The technical solution of the present invention further provides an automobile, comprising a sliding door, a vehicle body side panel, and the sliding door positioning buffer buckle according to any of the above technical solutions;

[0030] The buckle base is connected to the door sheet metal of the sliding door;

[0031] The outer sleeve is installed in the installation groove of the vehicle body side.

[0032] The above technical solution has the following beneficial effects:

[0033] The present invention provides a sliding door positioning buffer buckle and a car, wherein the sliding door positioning buffer buckle includes a first buckle and a second buckle. When the sliding door is closed, the buckle top pin of the first buckle is inserted into the top pin insertion hole of the second buckle, and the sliding seat of the second buckle is acted on to move deeper in the outer sleeve. The first elastic buffer element reacts to the sliding seat to play a shock-absorbing and buffering role. At the same time, the buckle base of the first buckle is covered with a buffer pad. When the first buckle contacts the end of the outer sleeve, the buffer pad further plays a shock-absorbing and buffering role, thereby improving the shock-absorbing performance of the product, reducing noise, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0035] Figure 1 An exploded view of a positioning and buffering buckle for a sliding door provided in one embodiment of the present invention;

[0036] Figure 2 A cross-sectional view of a positioning and buffering buckle for a sliding door provided in one embodiment of the present invention;

[0037] Figure 3 is a cross-sectional view of the second buckle;

[0038] Figure 4 is a cross-sectional view of the first buckle;

[0039] Figure 5 is a cross-sectional view of the guide sleeve and the inner sleeve;

[0040] Figure 6 A front view of a stopper protrusion provided at the mouth end of the guide sleeve;

[0041] Figure 7 This is a front view of the inner sleeve with a retaining ring opening on the barrel mouth retaining ring;

[0042] Figure 8 This is a schematic diagram of the sliding door being positioned against the vehicle body side panel via the sliding door positioning buffer clips. DETAILED DESCRIPTION

[0043] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0044] like Figure 1-4 and Figure 8 As shown, a sliding door positioning buffer buckle provided by an embodiment of the present invention includes a first buckle 1 for connecting with a door sheet metal 101 and a second buckle 2 for connecting with a vehicle body side panel 200 .

[0045] The first buckle 1 includes a buckle base 11 for connecting to the vehicle door sheet metal 101 , a buckle top pin 12 connected to the buckle base 11 , and a buffer pad 13 sleeved on the buckle base 11 . The buckle top pin 12 passes through the buffer pad 13 and extends toward the second buckle 2 .

[0046] The second clip 2 includes an outer sleeve 21 for connecting to the vehicle body side 200, an inner sleeve 22 connected to the outer sleeve base plate 211 of the outer sleeve 21 and located in the outer sleeve 21, a first elastic buffer element 23 installed between the outer sleeve 21 and the inner sleeve 22, and a sliding seat 24 with a clearance fit in the outer sleeve 21.

[0047] The sliding seat 24 includes a slider 241 and a guide sleeve 242 connected to the slider 241. The slider 241 is loosely fitted in the outer sleeve 21. The radius of the slider 241 is greater than the radius of the inner sleeve 22. The slider 241 is located on the outside of the inner sleeve 22. The first elastic buffer element 23 is connected to the slider 241, and the guide sleeve 242 is loosely fitted in the inner sleeve 22.

[0048] A guide post 222 is provided on the inner sleeve bottom plate 221 of the inner sleeve 22 , and the guide post 222 is loosely fitted in the guide sleeve 242 .

[0049] The slider 241 has a push pin insertion hole 2411 , and the buckle push pin 12 is pluggable and inserted into the push pin insertion hole 2411 .

[0050] The sliding door positioning and buffering buckle provided by the present invention is used to provide guidance, limitation and buffering for the sliding door 100 when closing.

[0051] The sliding door positioning buffer buckle comprises a first buckle 1 and a second buckle 2. The first buckle 1 is connected to the door sheet metal 101 of the sliding door 100, and the second buckle 2 is installed in the installation slot 201 of the vehicle body side 200.

[0052] The first buckle 1 includes a buckle base 11, a buckle top pin 12, and a cushion 13. The buckle base 11 is connected or clamped to the vehicle door sheet metal 101 via fasteners. The buckle top pin 12 is connected to one side of the buckle base 11 and protrudes toward the front of the buckle base 11. It is inserted into the top pin receptacle 2411 of the second buckle 2 to provide guidance and limit the closing of the sliding door 100. The cushion 13 is mounted on the buckle base 11, and the buckle top pin 12 extends through the cushion 13. The first buckle 1 can be a plastic component. The cushion 13 can be a rubber pad.

[0053] The second clip 2 comprises an outer sleeve 21, an inner sleeve 22, a first elastic buffer element 23, and a sliding seat 24. The outer sleeve 21 is mounted in the mounting slot 201 of the vehicle body side 200. The inner sleeve base plate 221 of the inner sleeve 22 is connected to the outer sleeve base plate 211 of the outer sleeve 21. The inner sleeve 22 is coaxially positioned within the outer sleeve 21. The openings of the inner sleeve 22 and the outer sleeve 21 are spaced apart to accommodate the sliding seat 24. A guide post 222 is formed on the inner sleeve base plate 221 of the inner sleeve 22, extending toward the opening of the inner sleeve 21. The guide post 222 is coaxially positioned with the inner sleeve 22.

[0054] The first elastic buffer element 23 is mounted between the outer sleeve 21 and the inner sleeve 22. The first elastic buffer element 23 can be a spring, a spring, or the like. The first elastic buffer element 23 is preferably a first expansion spring, one end of which is connected to the outer sleeve base plate 211 and the other end to the sliding seat 24. When the sliding seat 24 moves toward the outer sleeve base plate 211, the first elastic buffer element 23 provides a reaction force, providing a buffer for the sliding seat 24.

[0055] The sliding seat 24 includes a slider 241 and a guide sleeve 242. The guide sleeve 242 is integrally connected to one side of the slider 241. The slider 241 has a push pin socket 2411 for inserting the push pin 12. The slider 241 is loosely fitted in the outer sleeve 21. The slider 241 is between the inner sleeve 22 and the outer sleeve 21 and can slide in this interval. The radius of the slider 241 is larger than the radius of the inner sleeve 22, and the slider 241 will not enter the inner sleeve 22. The guide sleeve 242 is loosely fitted in the inner sleeve 22, and the guide column 222 is loosely fitted in the guide sleeve 242, providing guidance for the reciprocating sliding of the slider 241 and limiting the radial shaking of the guide sleeve 242.

[0056] The first elastic buffer element 23 is connected to the slider 241 . When the slider 241 moves toward the inner sleeve 22 , the first elastic buffer element 23 provides a reaction force to provide buffering for the sliding seat 24 .

[0057] When the sliding door 100 is to be closed, it drives the first buckle 1 forward until the buckle ejector pin 12 is inserted into the ejector pin receptacle 2411. The friction between the buckle ejector pin 12 and the ejector pin receptacle 2411 causes the sliding seat 24 to move toward the outer sleeve base plate 211. The wall of the guide sleeve 242 lies between the wall of the inner sleeve 22 and the guide post 222, guiding the movement of the sliding seat 24 and limiting radial movement of the sliding seat 24. Simultaneously, the first elastic buffer element 23 is compressed, providing a reaction force to the sliding seat 24, providing a cushion and providing a shock-absorbing effect. When the first buckle 1 contacts the end of the outer sleeve 21, the cushion 13 further provides a shock-absorbing and cushioning effect, improving the product's shock-absorbing performance, reducing noise, and enhancing the user experience.

[0058] In one embodiment, Figure 2-4 As shown, the radius of the ejector pin 12 gradually decreases along the extension direction of the ejector pin 12, and the radius of the ejector pin insertion hole 2411 also gradually decreases. The ejector pin 12 is thin at the end and thick at the base, while the ejector pin insertion hole 2411 has a large opening and a narrow bottom, making it easy for the ejector pin 12 to be inserted into and removed from the ejector pin insertion hole 2411.

[0059] In one embodiment, Figure 2-3 As shown, the guide sleeve 242 is connected to the ejector pin insertion hole 2411. When the snap ejector pin 12 is inserted into the ejector pin insertion hole 2411, the end of the snap ejector pin 12 is inserted into the center hole of the guide sleeve 242. The center hole of the guide sleeve 242 is fully utilized to accommodate the end of the snap ejector pin 12, which can reduce the thickness of the slider 241 along the front-to-back direction.

[0060] In one embodiment, Figure 1-2 As shown, the buffer pad 13 includes a slot 131 , and a notch 1311 of the slot 131 is located on the bottom surface of the buffer pad 13 .

[0061] The snap base 11 includes a base body 111 and a base connection portion 112 connected to the base body 111 .

[0062] The base body 111 is located in the slot 131 , and the base connection portion 112 is located in the notch 1311 .

[0063] In this embodiment, the buffer pad 13 has a slot 131 , and a notch 1311 of the slot 131 is located on a side of the buffer pad 13 facing the door sheet metal 101 , which is referred to as the bottom surface of the buffer pad 13 .

[0064] The snap base 11 includes a base body 111 and a base connection portion 112. The base body 111 is the main part of the snap base 11, and the base connection portion 112 is protrudingly arranged on one side of the base body 111, and is used to be connected to the vehicle door sheet metal 101 through fasteners. Screw holes are provided on the base connection portion 112, which can be connected and fastened to the vehicle door sheet metal 101 by screws. During assembly, the base body 111 is in the slot 131, the base connection portion 112 is in the notch 1311, and the buffer pad 13 wraps the entire snap base 11, thereby improving the buffering and shock absorption effect. The buffer pad 13 exposes the base connection portion 112 so that the base connection portion 112 can be connected to the vehicle door sheet metal 101.

[0065] In one embodiment, the buckle ejector pin 12 and the buckle base 11 are integrally formed, which is easy to process and has high structural strength. The buckle ejector pin 12 and the buckle base 11 can be integrally injection molded.

[0066] In one embodiment, Figure 1-2 and Figure 8 As shown, a connecting flange 212 is provided around the opening of the outer sleeve 21. The connecting flange 212 is designed to fit around the notch of the mounting groove 201, providing a position limit and installation function, thereby improving the installation stability of the outer sleeve 21. If needed, an adhesive layer can be applied around the connecting flange 212 and the notch of the mounting groove 201 to provide a seal and enhance installation.

[0067] In one embodiment, Figure 2-3 As shown, an internal threaded hole 2111 is provided on the outer sleeve bottom plate 211 .

[0068] A bottom plate retaining ring 2211 is provided on the circumferential surface of the inner sleeve bottom plate 221 , and the radius of the bottom plate retaining ring 2211 is larger than the radius of the internal threaded hole 2111 .

[0069] An external thread is provided on the outer surface of the inner sleeve 22 . The inner sleeve 22 passes through the internal threaded hole 2111 and is threadedly connected to the internal threaded hole 2111 .

[0070] The bottom plate retaining ring 2211 is located outside the outer sleeve bottom plate 211 .

[0071] In this embodiment, an internal threaded hole 2111 is provided at the center of the outer sleeve bottom plate 211. A bottom plate retaining ring 2211 is connected to the edge of the inner sleeve bottom plate 221. The radius of the bottom plate retaining ring 2211 is larger than the radius of the internal threaded hole 2111. The bottom plate retaining ring 2211 is located on the outside of the outer sleeve bottom plate 211 and acts as a stop.

[0072] An external thread is provided on the outer surface of the inner sleeve 22, and the inner sleeve 22 passes through the internal threaded hole 2111. The external thread on the inner sleeve 22 engages with the internal thread of the internal threaded hole 2111. The inner sleeve 22 can be installed in place by rotating the inner sleeve 22, so as to facilitate the assembly of the inner sleeve 22 and the outer sleeve 21 together.

[0073] In one embodiment, Figure 5-7 As shown, a barrel mouth retaining ring 223 is provided in the barrel mouth of the inner sleeve 22.

[0074] A stopper 2421 is provided at the opening end of the guide sleeve 242 .

[0075] The barrel mouth retaining ring 223 is provided with a retaining ring opening 2231 for the stopping protrusion 2421 to pass through.

[0076] The stop protrusion 2421 is loosely fitted in the inner sleeve 22 and is located between the inner sleeve bottom plate 221 and the barrel mouth stop ring 223 . The stop protrusion 2421 and the stop ring opening 2231 are staggered.

[0077] In this embodiment, a tube mouth retaining ring 223 is provided in the tube mouth of the inner sleeve 22 , and a retaining ring opening 2231 is opened on the tube mouth retaining ring 223 .

[0078] A radially protruding stopper 2421 is provided on the opening end of the guide sleeve 242 , and the stopper 2421 can pass through the stop ring opening 2231 .

[0079] The number and arrangement angle of the retaining ring openings 2231 correspond to the number and arrangement angle of the stop protrusions 2421 .

[0080] During assembly, the sliding seat 24 is first rotated to rotate the guide sleeve 242 by a preset angle, thereby aligning the stop protrusion 2421 with the retaining ring opening 2231. The sliding seat 24 is then pushed linearly to allow the stop protrusion 2421 to pass through the retaining ring opening 2231. The sliding seat 24 is then rotated by a certain angle to stagger the stop protrusion 2421 with the retaining ring opening 2231. This prevents the stop protrusion 2421 from slipping out of the retaining ring opening 2231 when the sliding seat 24 is driven by the first elastic buffer element 23, causing the guide sleeve 242 to separate from the inner sleeve 22. If desired, a torsion spring can be disposed between the guide sleeve 242 and the guide post 222 to maintain the staggered arrangement of the stop protrusion 2421 and the retaining ring opening 2231. As the guide sleeve 242 moves forward and backward, the torsion spring is stretched or compressed, but this does not affect the torsion spring's ability to apply torque to the guide sleeve 242. At the same time, it imparts a certain reaction force to the guide sleeve 242, further providing a buffering effect.

[0081] In one embodiment, a second elastic buffer element is connected to the inner sleeve bottom plate 221 .

[0082] When the guide sleeve 242 moves a preset distance in the inner sleeve 22 toward the inner sleeve bottom plate 221 , the stopping protrusion 2421 presses the second elastic buffer element.

[0083] The second elastic buffer element can be an elastic sheet or a spring to further enhance the buffering and shock absorbing effect on the sliding seat 24 .

[0084] One embodiment of the present invention provides an automobile, comprising a sliding door 100, a body side panel 200, and a sliding door positioning and buffering clip as described in any of the aforementioned embodiments. A clip base 11 is connected to a door sheet metal 101 of the sliding door 100. An outer sleeve 21 is mounted in a mounting slot 201 of the body side panel 200.

[0085] The automobile provided by the present invention may be an MPV automobile, a commercial vehicle, etc., which includes a sliding door 100, a vehicle body side panel 200, and a sliding door positioning buffer buckle.

[0086] For the structure, construction and working principle of the sliding door positioning buffer buckle, please refer to the previous description of the sliding door positioning buffer buckle, which will not be repeated here.

[0087] The sliding door 100 includes a door sheet metal 101 , and the vehicle body side 200 includes a B-pillar and the like.

[0088] The buckle base 11 is connected or clamped to the door sheet metal 101 by fasteners. The outer sleeve 21 is fixedly installed in the installation groove 201 of the vehicle body side 200.

[0089] When the sliding door 100 is to be closed, it drives the first buckle 1 forward until the buckle ejector pin 12 is inserted into the ejector pin receptacle 2411. The friction between the buckle ejector pin 12 and the ejector pin receptacle 2411 causes the sliding seat 24 to move toward the outer sleeve base plate 211. The wall of the guide sleeve 242 lies between the wall of the inner sleeve 22 and the guide post 222, guiding the movement of the sliding seat 24 and limiting radial movement of the sliding seat 24. Simultaneously, the first elastic buffer element 23 is compressed, providing a reaction force to the sliding seat 24, providing a cushion and providing a shock-absorbing effect. When the first buckle 1 contacts the end of the outer sleeve 21, the cushion 13 further provides a shock-absorbing and cushioning effect, improving the product's shock-absorbing performance, reducing noise, and enhancing the user experience.

[0090] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0091] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other variations can be made based on the principles of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A sliding door positioning buffer buckle, characterized in that: It includes a first buckle for connecting with the door sheet metal and a second buckle for connecting with the body side; The first buckle includes a buckle base for connecting to the door sheet metal, a buckle top pin connected to the buckle base, and a buffer pad sleeved on the buckle base, wherein the buckle top pin passes through the buffer pad and extends toward the second buckle; The second buckle includes an outer sleeve for connecting to the vehicle body side, an inner sleeve connected to the outer sleeve bottom plate of the outer sleeve and located in the outer sleeve, a first elastic buffer element installed between the outer sleeve and the inner sleeve, and a sliding seat with a clearance fit in the outer sleeve; The sliding seat includes a slider and a guide sleeve connected to the slider, the slider is loosely fitted in the outer sleeve, the radius of the slider is greater than the radius of the inner sleeve, the slider is located outside the inner sleeve, the first elastic buffer element is connected to the slider, and the guide sleeve is loosely fitted in the inner sleeve; The inner sleeve bottom plate is provided with a guide post, and the guide post is loosely fitted in the guide sleeve; The sliding block is provided with a push pin insertion hole, and the buckle push pin is pluggable and inserted into the push pin insertion hole.

2. The sliding door positioning buffer buckle according to claim 1, characterized in that: Along the extending direction of the buckle ejector pin, the radius of the buckle ejector pin gradually decreases, and the radius of the ejector pin insertion hole also gradually decreases.

3. The sliding door positioning buffer buckle according to claim 1, characterized in that: The guide sleeve is in communication with the ejector pin insertion hole; When the buckle ejector pin is inserted into the ejector pin insertion hole, the end of the buckle ejector pin is inserted into the central hole of the guide sleeve.

4. The sliding door positioning buffer buckle according to claim 1, characterized in that: The buffer pad includes a card slot, and the notch of the card slot is located on the bottom surface of the buffer pad; The snap base includes a base body and a base connecting portion connected to the base body; The base body is located in the slot, and the base connection portion is located in the notch.

5. The sliding door positioning buffer buckle according to claim 1, characterized in that: The buckle ejector pin and the buckle base are integrally formed.

6. The sliding door positioning buffer buckle according to claim 1, characterized in that: A connecting flange is provided around the barrel opening of the outer sleeve.

7. The sliding door positioning buffer buckle according to claim 1, characterized in that: An internal threaded hole is provided on the bottom plate of the outer sleeve; A bottom plate retaining ring is provided on the circumferential surface of the bottom plate of the inner sleeve, and the radius of the bottom plate retaining ring is larger than the radius of the internal threaded hole; An external thread is provided on the outer surface of the inner sleeve, and the inner sleeve passes through the internal threaded hole and is threadedly connected to the internal threaded hole; The bottom plate retaining ring is located on the outside of the bottom plate of the outer sleeve.

8. The sliding door positioning buffer buckle according to claim 1, characterized in that: A barrel mouth retaining ring is provided in the barrel mouth of the inner sleeve; The guide sleeve is provided with a stopper protrusion at the mouth end thereof; The barrel mouth retaining ring is provided with a retaining ring opening for the stop protrusion to pass through; The stop convex block is loosely fitted in the inner sleeve and is located between the inner sleeve bottom plate and the barrel mouth retaining ring. The stop convex block and the retaining ring opening are staggered.

9. The sliding door positioning buffer buckle according to claim 8, characterized in that: A second elastic buffer element is connected to the bottom plate of the inner sleeve; When the guide sleeve moves a preset distance in the inner sleeve toward the inner sleeve bottom plate side, the stop protrusion presses the second elastic buffer element.

10. An automobile, characterized in that: It comprises a sliding door, a vehicle body side panel and a sliding door positioning buffer buckle as claimed in any one of claims 1 to 9; The buckle base is connected to the door sheet metal of the sliding door; The outer sleeve is installed in the installation groove of the vehicle body side.

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