Automobile back door limiter structure and automobile
By designing an XYZ three-directional positioning automotive tailgate limiter structure, and utilizing a combination of guide section, positioning section, and buffer sleeve, the problems of tailgate dangling and abnormal noise were solved, achieving tailgate stability and shock absorption.
Patent Information
- Application Number
- CN202520434425.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The existing automotive tailgate limiter structure has a problem where the tailgate falls down due to lack of support in the Z-direction, and it also generates friction noise during vehicle operation.
A car tailgate limiter structure was designed, including a body side limiter and a door side limiter. The XYZ three-dimensional positioning is achieved through the combination of a guide section, a positioning section and a buffer sleeve, and the buffer sleeve contacts the body side limiter to reduce abnormal noise.
It achieves XYZ three-way positioning of the tailgate, reduces tailgate vibration and abnormal noise during vehicle operation, and improves tailgate stability and shock absorption.
Smart Images
Figure CN223952465U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile accessories, and particularly relates to an automobile back door stopper structure and automobile. BACKGROUND
[0002] The contrast file automobile back door lower part car body stop support is in the shape of a Chinese character 'jia', the support block is clamped on the inner side of the car body stop support, a support mounting hole is arranged on the folded edge of the car body stop support, the car body stop assembly is fixedly installed with the car body by screwing through the support mounting hole, the upper stop rod of the back door is in contact with the cooperation surface of the stop base, left and right stop and front and back stop are realized, there is no up and down stop function, there is no Z-direction support effect on the door, the problem of Z-direction falling of the back door exists, and the friction noise problem exists in the cooperation of the support block and the support in the automobile driving process. The present application increases a guide pin on the back door stop rod, increases a front and back direction limiting surface on the base, and increases a rubber sleeve at the contact position to prevent hard collision and produce noise. SUMMARY
[0003] The present application aims to provide an automobile back door stopper structure and automobile, which can not only realize XYZ three-way positioning of the back door, but also reduce the probability of producing noise.
[0004] The first aspect of the present application discloses an automobile back door stopper structure, comprising: a car body side stopper, which is used for being connected with a car body of an automobile, and is provided with a positioning hole; and a door side stopper, which comprises a positioning rod, a buffer sleeve and a door side fixing part used for being connected with a back door of the automobile, the positioning rod comprises a guide section, a positioning section and a fixing section, the positioning section is connected between the guide section and the fixing section, the fixing section is connected with the door side fixing part, the diameter of the guide section is smaller than the diameter of the positioning section, the diameter of the guide section is smaller than the diameter of the positioning hole, the positioning section is arranged in the positioning hole and cooperates with the positioning hole to realize positioning, and the buffer sleeve is arranged on the fixing section and contacts the car body side stopper along the axial direction of the positioning hole.
[0005] In an exemplary embodiment of the present application, the diameter of the guide section gradually increases from the guide section to the fixing section, and the maximum diameter of the guide section is smaller than or equal to the diameter of the positioning section, and the diameter of the positioning section is equal to the diameter of the fixing section.
[0006] In an exemplary embodiment of the present application, the door side stopper is provided with a mounting groove, the fixing section is connected in the mounting groove, and the buffer sleeve is located in the mounting groove and contacts the groove wall of the mounting groove.
[0007] In an example embodiment of the present application, the door side fixing part is provided with an oval hole, and the oval hole is arranged at a distance from the positioning rod.
[0008] In an example embodiment of the present application, the door side fixing part is further provided with a limiting inclined surface, and the limiting inclined surface is used to contact the body side limiter.
[0009] In an example embodiment of the present application, the automobile back door limiter structure further comprises a nylon sleeve, and the nylon sleeve is installed in the positioning hole and used to contact the positioning rod.
[0010] In an example embodiment of the present application, the body side limiter comprises a flange plate and a mounting plate, the flange plate is connected with the mounting plate, and the plate surface of the flange plate intersects with the plate surface of the mounting plate; wherein the positioning hole is located in the flange plate; and the mounting plate is used to support the door side limiter.
[0011] In an example embodiment of the present application, the mounting plate comprises a supporting surface used to support the door side limiter, and the supporting surface is arranged at an angle relative to the plate surface of the flange plate.
[0012] In an example embodiment of the present application, the body side limiter comprises a metal layer and a polyformaldehyde lubricating layer, and the polyformaldehyde lubricating layer covers the metal layer.
[0013] The second aspect of the present application discloses an automobile, comprising a body, a back door and the above-mentioned automobile back door limiter structure, the body side limiter is connected to the body, and the door side limiter is connected to the back door.
[0014] The present application has the following beneficial effects:
[0015] In the embodiment of the present application, when the body side limiter is connected to the body of the automobile, and the door side limiter is connected to the back door of the automobile, if the back door is closed, the guiding section of the positioning rod can first pass through the positioning hole until the positioning section is arranged in the positioning hole, thereby realizing XYZ three-dimensional positioning of the back door. At the same time, due to the existence of the buffer sleeve, after the positioning section is arranged in the positioning hole, the buffer sleeve contacts the body side limiter, which can not only limit the movement of the back door along the axial direction of the positioning rod towards the body, but also can play a role of buffering and shock absorption, thereby reducing the probability of producing abnormal sound. Therefore, the automobile back door limiter structure can not only realize XYZ three-dimensional positioning of the back door, but also reduce the probability of producing abnormal sound.
[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A side view structural schematic diagram of a car back door stopper structure in the embodiment of the present application is shown.
[0018] Figure 2 A perspective structural schematic diagram of a car door side stopper in the embodiment of the present application is shown.
[0019] Figure 3 A perspective structural schematic diagram of a car body side stopper in the embodiment of the present application is shown.
[0020] Figure 4 A structural schematic diagram of another perspective of a car body side stopper in the embodiment of the present application is shown. Figure 3
[0021] Reference signs:
[0022] 1, car body side stopper; 11, flange plate; 111, limiting rib; 12, mounting plate; 121, supporting surface; 13, nylon sleeve; 101, positioning hole; 2, car door side stopper; 21, positioning rod; 211, guiding section; 212, positioning section; 22, buffer sleeve; 201, mounting groove; 23, car door side fixing part; 231, first car door side limiting plate; 232, second car door side limiting plate; 233, third car door side limiting plate; 202, elliptical hole; 2a, limiting inclined surface. DETAILED DESCRIPTION
[0023] Other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied in other different specific embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.
[0024] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component when actually implemented can be arbitrarily changed, and the component layout pattern can also be more complex.
[0025] In combination with Figures 1 to 4 As shown in the embodiments, the automobile back door stopper structure is used for limiting the front and back, left and right, and up and down of the lower part of the back door of the automobile, so that the back door does not shake greatly during the driving of the automobile, and the problem of abrasion and abnormal sound of the back door during the movement of the automobile is solved.
[0026] In combination Figures 3 to 4 As shown in the embodiments, the automobile back door stopper structure comprises a vehicle body side stopper 1 used for being connected with the vehicle body, and the vehicle body side stopper 1 is provided with a positioning hole 101.
[0027] In combination Figure 1 And Figure 2 As shown in the embodiments, the automobile back door stopper structure further comprises a door side stopper 2, and the door side stopper 2 comprises a positioning rod 21, a buffer sleeve 22, and a door side fixing portion 23 used for being connected with the back door of the automobile, the positioning rod 21 comprises a guide section 211, a positioning section 212, and a fixing section, the positioning section 212 is connected between the guide section 211 and the fixing section, the fixing section is connected with the door side fixing portion 23, the diameter of the guide section 211 is smaller than the diameter of the positioning section 212, the diameter of the guide section 211 is smaller than the diameter of the positioning hole 101, the positioning section 212 is arranged in the positioning hole 101, and the positioning section 212 is matched with the positioning hole 101 to realize positioning; the buffer sleeve 22 is arranged on the fixing section, and the buffer sleeve 22 is in contact with the vehicle body side stopper 1 along the axial direction of the positioning hole 101.
[0028] In the utility model, when the vehicle body side stopper 1 is connected with the vehicle body, and the door side stopper 2 is connected with the back door of the automobile, if the back door is closed, the guide section 211 of the positioning rod 21 can pass through the positioning hole 101 first until the positioning section 212 is arranged in the positioning hole 101, and then the XYZ three-way positioning of the back door is realized. Meanwhile, due to the existence of the buffer sleeve 22, after the positioning section 212 is arranged in the positioning hole 101, the buffer sleeve 22 is in contact with the vehicle body side stopper 1, which can limit the movement of the back door along the axial direction of the positioning rod 21 towards the vehicle body, and can also play a role of buffering and shock absorption, thereby reducing the probability of abnormal sound. Therefore, the automobile back door stopper structure can realize the XYZ three-way positioning of the back door, and can also reduce the probability of abnormal sound.
[0029] Further, in combination Figure 2 As shown in the embodiments, the diameter of the guide section 211 gradually increases from the direction of the guide section 211 towards the fixing section, thereby improving the success rate of the positioning rod 21 arranged in the positioning hole 101.
[0030] For example, the guide section 211 is in the shape of a cone or a circular table.
[0031] Further, in combination Figure 2As shown, the maximum diameter of the guiding section 211 is less than or equal to the diameter of the positioning section 212. In the present embodiment, the maximum diameter of the guiding section 211 is equal to the diameter of the positioning section 212, so as to reduce the distance between the positioning rod 21 and the hole wall of the positioning hole 101 when the positioning section 212 is arranged in the positioning hole 101 and used for positioning, and finally reduce the probability of abnormal sound generated by the automobile back door limiter structure in operation.
[0032] Further, the diameter of the positioning section 212 is equal to the diameter of the fixing section, so that after the buffer sleeve 22 is sleeved on the fixing section, the buffer sleeve 22 directly contacts the vehicle body side limiter 1 along the axial direction of the positioning hole 101 when the automobile back door limiter structure is in operation, preventing hard collision and abnormal sound.
[0033] In the present embodiment, the buffer sleeve 22 is a rubber sleeve or other elastic component, and the positioning rod 21 and the door side fixing part 23 of the door side limiter 2 are cast iron structures.
[0034] Further, in combination with Figure 2 As shown, the door side limiter 2 is provided with a mounting groove 201, the fixing section is connected in the mounting groove 201, and the buffer sleeve 22 is located in the mounting groove 201 and in contact with the groove wall of the mounting groove 201.
[0035] For example, the door side fixing part 23 includes a first door side limiting plate 231, a second door side limiting plate 232, and a third door side limiting plate 233, the second door side limiting plate 232 and the third door side limiting plate 233 are both perpendicularly connected to two opposite sides of the same plate surface of the first door side limiting plate 231, and the mounting groove 201 is formed between the second door side limiting plate 232 and the third door side limiting plate 233.
[0036] In the present embodiment, along the axial direction of the positioning rod 21: the fixing section and part of the buffer sleeve 22 are located in the mounting groove 201, and the other part of the fixing section and the buffer sleeve 22 extends out of the mounting groove 201. That is, the part of the buffer sleeve 22 located outside the mounting groove 201 can contact the vehicle body side limiter 1 along the axial direction of the positioning hole 101.
[0037] It should be understood that when the buffer sleeve 22 is located in the mounting groove 201 and in contact with the groove wall of the mounting groove 201, and the buffer sleeve 22 is sleeved on the positioning rod 21, the groove wall of the mounting groove 201 can support the positioning rod 21, thereby increasing the torsional resistance of the positioning rod 21. At the same time, the contact between the buffer sleeve 22 and the groove wall of the mounting groove 201 can also enhance the friction between the buffer sleeve 22 and the positioning rod 21, thereby reducing the risk of the buffer sleeve 22 falling off. In addition, the groove wall of the mounting groove 201 (i.e., the second door side limiting plate 232 and the third door side limiting plate 233) can enhance the torsional resistance of the first door side limiting plate 231, thereby improving the stiffness of the door side limiter 2.
[0038] In the embodiment, the positioning rod 21 can be screwed with the first door side limiting plate 231 and the pre-buried nut on the door through the self-provided thread, thereby realizing the connection between the door side limiter 2 and the door.
[0039] Further, as shown in Figure 2 , the door side fixing part 23 is provided with an oval hole 202, which is arranged at a distance from the positioning rod 21, so as to be screwed with the pre-buried nut on the door through the M6 bolt, thereby being installed on the door together with the positioning rod 21. After the door side fixing part 23 is provided with the oval hole 202, the relative position between the body side limiter 1 and the door side limiter 2 can be adjusted by adjusting the position of the bolt in the waist-shaped hole, thereby realizing good matching, so as to reduce the requirement for the body precision.
[0040] Further, as shown in Figure 2 , the door side fixing part 23 is further provided with a limiting inclined surface 2a, which is used to contact the body side limiter 1.
[0041] In the embodiment, the limiting inclined surface 2a is located at the bottom of the door side fixing part 23, so as to play a guiding role when the bottom of the door side fixing part 23 contacts the body side limiter 1, and make the door side limiter 2 smoothly approach the body side limiter 1 along the axial direction of the positioning hole 101.
[0042] Further, as shown in Figure 3 and Figure 4 , the automobile back door limiter structure further comprises a nylon sleeve 13, which is installed in the positioning hole 101 and used to contact the positioning rod 21. In the embodiment, the positioning rod 21 and the nylon sleeve 13 cooperate to form left and right limiting, and the buffer sleeve 22 and the nylon sleeve 13 cooperate to form front and rear direction limiting.
[0043] For example, when the positioning rod 21 is arranged in the positioning hole 101, the side circumferential surface of the positioning segment 212 contacts the nylon sleeve 13, so as to reduce the friction loss of the positioning rod 21 through the nylon sleeve 13, and also play a buffering and damping role for the positioning rod 21.
[0044] Further, after the nylon sleeve 13 is installed in the positioning hole 101, part of the nylon sleeve 13 will be located outside the positioning hole 101 along the axial direction of the positioning hole 101, so as to contact the buffer sleeve 22 and prevent hard collision and abnormal noise.
[0045] Further, as shown in Figure 3 and Figure 4 , the automobile back door limiter structure further comprises a buffer sleeve 22, which is arranged in the positioning hole 101 and used to contact the nylon sleeve 13.As shown, the vehicle body side limiter 1 comprises a folded plate 11 and a mounting plate 12, the folded plate 11 is connected with the mounting plate 12, and the plate surface of the folded plate 11 intersects with the plate surface of the mounting plate 12; wherein the positioning hole 101 is located in the folded plate 11; the mounting plate 12 is used for supporting the vehicle door side limiter 2.
[0046] For example, when the plate surface of the folded plate 11 intersects with the plate surface of the mounting plate 12, the overall structure of the folded plate 11 and the mounting plate 12 after being connected is approximately in the shape of "L".
[0047] In this embodiment, in combination with Figure 1 As shown, when the positioning hole 101 is located in the folded plate 11; the mounting plate 12 is used for supporting the vehicle door side limiter 2, the mounting plate 12 can play a limiting role on the vehicle door side limiter 2, preventing the vehicle door side limiter 2 from moving towards the side of the mounting plate 12, thereby sharing the stress of the positioning rod 21.
[0048] Further, in combination with Figures 1 to 4 As shown, the mounting plate 12 comprises a supporting surface 121 for supporting the vehicle door side limiter 2, and the supporting surface 121 is inclinedly arranged relative to the plate surface of the folded plate 11. In this embodiment, the supporting surface 121 of the mounting plate 12 is parallel to the limiting inclined surface 2a of the vehicle door side fixing part 23, so that the vehicle door side limiter 2 can smoothly approach the vehicle body side limiter 1 along the axial direction of the positioning hole 101, and at the same time, the vehicle door side limiter 2 can be better supported.
[0049] Further, the vehicle body side limiter 1 comprises a metal layer and a polyoxymethylene lubricating layer, and the polyoxymethylene lubricating layer covers the metal layer. In this embodiment, the vehicle body side limiter 1 is a 35K steel plate externally added with POM (polyoxymethylene) lubricating material injection molding, and the steel plate is self-folded.
[0050] It should be understood that the surface of the vehicle body side limiter 1 is the polyoxymethylene lubricating layer, which has self-lubricating function. When the vehicle door is closed and cooperates with the vehicle door side limiter 2, the mounting plate 12 of the vehicle body side limiter 1 can not only form Z-direction support and limiting force on the vehicle door, but also can eliminate the abnormal sound problem in the friction process.
[0051] Further, in combination with Figure 3 As shown, the vehicle body side limiter 1 is further provided with two limiting ribs 111, and the two limiting ribs 111 are arranged on the folded plate 11 to improve the strength of the vehicle body side limiter 1.
[0052] In summary, the automobile back door stopper structure is connected with the automobile body through the body side stopper 1 and connected with the back door of the automobile through the door side stopper 2, and if the back door is closed, the guide section 211 of the positioning rod 21 can first pass through the positioning hole 101 until the positioning section 212 is arranged in the positioning hole 101, thereby achieving XYZ three-way positioning of the back door. Meanwhile, the existence of the buffer sleeve 22 can make the body side stopper 1 contact the buffer sleeve 22 after the positioning section 212 is arranged in the positioning hole 101, which can limit the movement of the back door along the axis of the positioning rod 21 and also can play a role of buffering and shock absorption, thereby reducing the probability of abnormal sound. Therefore, the automobile back door stopper structure can not only achieve XYZ three-way positioning of the back door, but also reduce the probability of abnormal sound.
[0053] Further, the automobile back door stopper structure is independent of the back door lock and the lock pin, but is not designed on the back door lock and the lock pin, the precision requirement of the back door lock and the lock pin is low, meanwhile, the mounting hole of the door side fixing part 23 is an oval hole 202, the relative position of the body side stopper 1 and the door side stopper 2 can be adjusted by adjusting the position of the bolt in the oval hole 202, thereby achieving good matching, and therefore the precision requirement of the automobile body is reduced.
[0054] Further, the positioning rod 21 is provided with the buffer sleeve 22, the buffer sleeve 22 is a cylindrical structure and is sleeved on the positioning rod 21, and the buffer sleeve 22 plays a role of limiting the forward and backward movement of the back door when the positioning rod 21 cooperates with the body side stopper 1. Meanwhile, the surface of the body side stopper 1 is a polyformaldehyde lubricating layer, which has a self-lubricating function, when the body side stopper 1 cooperates with the door side stopper 2 during the closing of the door, the mounting plate 12 of the body side stopper 1 can not only form Z-direction support and limiting force on the door, but also can eliminate abnormal sound in the friction process. In addition, after the nylon sleeve 13 is installed in the positioning hole 101, part of the nylon sleeve 13 will be located outside the positioning hole 101 along the axial direction of the positioning hole 101, so as to contact the buffer sleeve 22, which can prevent hard collision and abnormal sound.
[0055] The embodiment also provides an automobile comprising a body, a back door and the automobile back door stopper structure in the above embodiment, the body side stopper 1 is connected to the body, and the door side stopper 2 is connected to the back door.
[0056] For other structures of the automobile, please refer to the prior art, which will not be described here.
[0057] The above embodiment is only a preferred embodiment for fully illustrating the utility model, and the protection scope of the utility model is not limited to this. Any equivalent replacement or transformation made by the person skilled in the art on the basis of the utility model is within the protection scope of the utility model.
Claims
1. A structure for a car tailgate limiter, characterized in that, The application relates to a back door limiter structure of an automobile. The application relates to a back door limiter structure of an automobile. The diameter of the guiding section gradually increases from the guiding section to the fixed section, and the maximum diameter of the guiding section is smaller than or equal to the diameter of the positioning section.
2. The back door check structure for a vehicle according to claim 1, characterized by The fixed section is connected to the mounting groove, and the buffer sleeve is located in the mounting groove and contacts the groove wall of the mounting groove.
3. The back door check structure for a vehicle according to claim 1, wherein The back door fixing part is provided with an oval hole which is spaced apart from the positioning rod.
4. The back door check structure for a vehicle according to claim 1, characterized by The back door fixing part is also provided with a limiting inclined surface which is used for contacting the body side limiter.
5. The back door check structure for a vehicle according to claim 1, wherein The back door limiter structure further comprises a nylon sleeve which is installed in the positioning hole and is used for contacting the positioning rod.
6. The back door check structure for a vehicle according to claim 1, wherein The body side limiter comprises a folded edge plate and a mounting plate, the folded edge plate is connected to the mounting plate, and the plate surface of the folded edge plate intersects with the plate surface of the mounting plate.
7. The back door check structure for a vehicle according to claim 1, wherein The positioning hole is located in the folded edge plate. The mounting plate is used for supporting the door side limiter. The mounting plate comprises a supporting surface which is used for supporting the door side limiter and is obliquely arranged relative to the plate surface of the folded edge plate.
8. The back door check structure of claim 7, wherein The body side limiter comprises a metal layer and a polyformaldehyde lubricating layer which covers the metal layer.
9. The back door check structure for a vehicle according to claim 1, wherein The application relates to a back door limiter structure of an automobile.
10. An automobile characterized by comprising: The body side limiter is connected to the body, and the door side limiter is connected to the back door.