CN211441944U - Flexible connecting sleeve and vehicle with same - Google Patents
Flexible connecting sleeve and vehicle with same Download PDFInfo
- Publication number
- CN211441944U CN211441944U CN201921702351.1U CN201921702351U CN211441944U CN 211441944 U CN211441944 U CN 211441944U CN 201921702351 U CN201921702351 U CN 201921702351U CN 211441944 U CN211441944 U CN 211441944U
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- connecting sleeve
- flexible connecting
- hollow
- ring
- flexible
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Abstract
The utility model discloses a flexible connecting sleeve and vehicle that has it, flexible connecting sleeve's cross section is the annular, it has at least one fretwork portion to construct in flexible connecting sleeve's the perisporium. According to the utility model discloses flexible connecting sleeve can make the spare part of connecting obtain great amplitude displacement, and with low costs, light in weight.
Description
Technical Field
The utility model belongs to the technical field of the connecting piece and specifically relates to a flexible connecting sleeve and have vehicle of flexible connecting sleeve.
Background
Due to structural limitation, when the flexible connecting sleeve (for example, an i-shaped rubber sleeve) in the related art is extruded and deformed by a part after the i-shaped rubber sleeve is assembled, the deformation rigidity is rapidly increased along with the increase of the deformation amount, the part is prevented from continuously displacing, the amplitude displacement is influenced, and when the amplitude displacement is increased, an ideal amplitude effect cannot be obtained only by increasing the thickness and size of rubber and adjusting the hardness of the rubber, so that the cost and the weight are increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. For this reason, an object of the utility model is to provide a flexible connecting sleeve, this flexible connecting sleeve can make the spare part of connecting obtain great amplitude displacement, and with low costs, light in weight.
The utility model discloses still provide a vehicle that has above-mentioned flexible adapter sleeve.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a flexible connecting sleeve, a cross section of the flexible connecting sleeve is annular, and at least one hollow portion is configured in a peripheral wall of the flexible connecting sleeve.
According to the utility model discloses flexible connecting sleeve can make the spare part of connecting obtain great amplitude displacement, and with low costs, light in weight.
In addition, according to the utility model discloses flexible adapter sleeve can also have following additional technical characterstic:
according to some embodiments of the present invention, the hollow portion extends in a circumferential direction of the circumferential wall of the flexible connecting sleeve to form a ring.
According to some embodiments of the invention, the at least one hollow comprises: the inner ring hollow-out part is arranged on the inner circumferential surface of the flexible connecting sleeve and extends in a ring shape along the circumferential direction of the inner circumferential surface of the flexible connecting sleeve.
Further, the inner ring hollow-out part is located at the center of the flexible connecting sleeve in the axial direction of the flexible connecting sleeve.
According to some embodiments of the invention, the inner ring hollow comprises: the flexible connecting sleeve comprises a first ring part and a second ring part, wherein the first ring part and the second ring part are arranged along the axial direction of the flexible connecting sleeve, the first ring part and the second ring part are communicated with each other, and arc transition is formed between the first ring part and the second ring part.
Further, the width of the cross section of the first ring part is gradually reduced from inside to outside along the radial direction of the flexible connecting sleeve; the width of the cross section of the second ring part is gradually reduced from inside to outside along the radial direction of the flexible connecting sleeve.
According to some embodiments of the utility model, the outer peripheral face of flexible connection sleeve is equipped with the assembly groove, the assembly groove is followed the circumference of the outer peripheral face of flexible connection sleeve extends and encircles, at least one fretwork portion includes: the first outer ring hollow-out part is arranged at the joint of the bottom of the assembling groove and one side wall, and extends along the circumferential direction of the assembling groove to form a ring shape; the second outer ring hollow-out part is arranged at the joint of the groove bottom of the assembling groove and the other side wall, and the second outer ring hollow-out part extends along the circumferential direction of the assembling groove to form a ring.
Furthermore, the outer contours of the cross sections of the first outer ring hollow-out portion and the second outer ring hollow-out portion are both arc-shaped.
According to some embodiments of the utility model, the outer peripheral face of flexible connection sleeve is equipped with the assembly groove, the assembly groove is followed the circumference of the outer peripheral face of flexible connection sleeve extends and encircles, at least one fretwork portion includes: the middle ring hollow part is arranged at the bottom of the assembling groove and extends along the circumferential direction of the assembling groove to form a ring.
Further, the middle ring hollow-out part is located at the center of the groove bottom of the assembling groove in the axial direction of the flexible connecting sleeve.
According to some embodiments of the invention, the at least one hollow comprises: the first end part hollow part is arranged on one end face of the flexible connecting sleeve and extends in a ring shape along the circumferential direction of one end face of the flexible connecting sleeve; the second end hollow-out part is arranged on the other end face of the flexible connecting sleeve and extends along the circumferential direction of the other end face of the flexible connecting sleeve to form a ring.
Further, the width of the cross section of the hollow-out part of the first end part is gradually reduced from outside to inside along the axial direction of the flexible connecting sleeve; the width of the cross section of the second end hollow part is gradually reduced from outside to inside along the axial direction of the flexible connecting sleeve.
Further, the flexible connecting sleeve is divided into an outer ring part and an inner ring part along the radial direction of the flexible connecting sleeve from inside to outside, and the axial length of the outer ring part is smaller than that of the inner ring part; the first end part hollow part is arranged on one end face of the outer ring part, and the outer peripheral surface of the inner ring part forms the inner peripheral wall of the first end part hollow part; the second end hollow part is arranged on the other end face of the outer ring part, and the outer peripheral face of the inner ring part forms the inner peripheral wall of the second end hollow part.
Furthermore, an oblique angle is formed between one end face of the outer ring part and the outer peripheral surface; and a chamfer angle is formed between the other end surface of the outer ring part and the outer peripheral surface.
According to the utility model discloses an embodiment of second aspect provides a vehicle, according to the utility model discloses a vehicle includes: a flexible connecting sleeve according to an embodiment of the first aspect of the present invention; the air filter is provided with a mounting hole, and the flexible connection sleeve is arranged in the mounting hole; the bushing penetrates through the flexible connecting sleeve; a frame, the bushing being mounted to the frame by a fastener passing therethrough.
According to the utility model discloses vehicle, through utilizing according to the utility model discloses an embodiment of first aspect the flexible connection sleeve, have with low costs, the quality is light, empty filter's shock attenuation buffering advantage such as effectual.
Drawings
The above advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a flexible connecting sleeve according to an embodiment of the present invention.
Fig. 2 is a schematic view of a flexible connection sleeve according to an embodiment of the present invention connected to an air filter and a sleeve.
Reference numerals:
a flexible connecting sleeve 1, an air filter 2, a bushing 3,
A hollow part 100, an assembling groove 200, an inner ring part 300, an outer ring part 400,
The inner ring hollow portion 110, the first ring portion 111, the second ring portion 112, the first outer ring hollow portion 120, the second outer ring hollow portion 130, the middle ring hollow portion 140, the first end hollow portion 150, and the second end hollow portion 160.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more, and "a plurality" means one or more.
A vehicle according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1-2, the vehicle comprises a flexible joint sleeve 1, an air filter 2, a liner 3 and a vehicle frame (not shown in the figures).
A flexible joint sleeve 1 according to an embodiment of the present invention will be described first with reference to the accompanying drawings.
As shown in fig. 1-2, the cross section of the flexible connecting sleeve 1 is annular, for example, circular ring, and at least one hollow 100 is formed in the peripheral wall of the flexible connecting sleeve 1.
In the vehicle according to the utility model discloses in, empty filter 2 has the mounting hole, and flexible adapter sleeve 1 is located in the mounting hole. A bushing 3 is inserted through the flexible joint sleeve 1, and the bushing 3 is mounted to the frame by a fastener (e.g., a bolt) passing therethrough.
For example, the flexible connecting sleeve 1 may be an i-shaped rubber sleeve, and the flexible connecting sleeve 1 may be used for flexible connection of vehicle parts (e.g., the air filter 2). The flexible connecting sleeve 1 is provided with a cylindrical through hole which is penetrated along the axial direction of the flexible connecting sleeve, the central axis of the through hole is superposed with the central axis of the flexible connecting sleeve 1, and the lining 3 penetrates through the through hole. The inner wall of the flexible connecting sleeve 1 is provided with at least one hollow part 100, and the position and the size of the hollow part 100 can be set according to the stress and the deformation direction.
According to the utility model discloses flexible connection sleeve 1 through set up fretwork portion 100 in flexible connection sleeve 1's perisporium, can let flexible connection sleeve 1 produce great deformation in the position of fretwork portion 100, when letting flexible connection sleeve 1 receive pressure extrusion, can carry out local bending deformation, can let spare part (for example empty filter 2) in certain displacement, the rigidity change control that flexible connection sleeve 1 warp is in certain extent to obtain great amplitude displacement. And, compare the I shape gum cover among the correlation technique, need not to increase material hardness and thickness size, flexible connecting sleeve 1 can be when close fitting dimension and atress, provides sufficient holding power to spare part, and lets spare part obtain bigger displacement in flexible connecting sleeve 1's axial and radial to improve the reliability of connecting and the effect of damping buffering.
Therefore, according to the utility model discloses flexible connecting sleeve 1 can make the spare part of connecting obtain great amplitude displacement, and with low costs, light in weight. The vehicle has the advantages of low cost, light weight, good damping and buffering effects of the air filter and the like due to the use of the flexible connecting sleeve 1.
According to some embodiments of the present invention, as shown in fig. 1-2, the hollow portion 100 extends in a ring shape along the circumferential direction of the circumferential wall of the flexible connecting sleeve 1. Therefore, no matter the flexible connecting sleeve 1 is in positive pressure, lateral pressure or torsion, the flexible connecting sleeve 1 can be subjected to local bending deformation, and the amplitude displacement of the flexible connecting sleeve 1 is further improved.
According to some embodiments of the present invention, as shown in fig. 1-2, at least one hollowed-out portion 100 comprises an inner ring hollowed-out portion 110.
The inner hollow portion 110 is disposed on the inner circumferential surface of the flexible connection sleeve 1 and extends in a ring shape along the circumferential direction of the inner circumferential surface of the flexible connection sleeve 1. The inner hollow 110 is located at the center of the flexible connection sleeve 1 in the axial direction of the flexible connection sleeve 1. The arrangement of the inner hollow-out portion 110 can improve the amplitude displacement of the flexible connecting sleeve 1 on the inner peripheral side.
Specifically, the inner hollow portion 110 includes a first ring portion 111 and a second ring portion 112. The first ring part 111 and the second ring part 112 are arranged along the axial direction of the flexible connecting sleeve 1, and the first ring part 111 and the second ring part 112 are communicated with each other and are in arc transition.
Wherein, the width of the cross section of the first ring part 111 is gradually reduced from inside to outside along the radial direction of the flexible connecting sleeve 1, the tip of the cross section of the first ring part 111 can be configured into a round angle, the width of the cross section of the second ring part 112 is gradually reduced from inside to outside along the radial direction of the flexible connecting sleeve 1, and the tip of the cross section of the second ring part 112 can be configured into a round angle. Thus, it is possible to prevent stress concentration from occurring at the first ring portion 111, the second ring portion 112, and the connection of the first ring portion 111 and the second ring portion 112, and to promote amplitude displacement while ensuring sufficient support strength.
According to some embodiments of the present invention, as shown in fig. 1-2, the outer peripheral surface of the flexible connecting sleeve 1 is provided with an assembly groove 200, the assembly groove 200 extends along the circumference of the outer peripheral surface of the flexible connecting sleeve 1 to form a ring, and the edge of the mounting hole of the air filter 2 can be fitted in the assembly groove 200, so as to limit the connection stability.
The at least one hollowed-out portion 100 includes a first outer ring hollowed-out portion 120 and a second outer ring hollowed-out portion 130.
The first outer ring hollow portion 120 is arranged at the joint of the bottom and one side wall of the assembling groove 200, the first outer ring hollow portion 120 extends in the circumferential direction of the assembling groove 200 to form a ring shape, the second outer ring hollow portion 130 is arranged at the joint of the bottom and the other side wall of the assembling groove 200, and the second outer ring hollow portion 130 extends in the circumferential direction of the assembling groove 200 to form a ring shape. The arrangement of the first outer ring hollow-out portion 120 and the second outer ring hollow-out portion 130 can improve the amplitude displacement of both sides of the assembly position of the flexible connecting sleeve 1 and the air filter 2.
The outer contours of the cross sections of the first outer ring hollow-out portion 120 and the second outer ring hollow-out portion 130 are both arc-shaped.
For example, the cross section of the fitting groove 200 is rectangular, and the width of the first and second outer ring hollow parts 120 and 130 at the bottom of the fitting groove 200 is smaller than the width at the side wall of the fitting groove 200. Thus, partial structure of the air filter 2 is inserted into the assembly groove 200 more easily, the air filter 2 is tightly matched with the flexible connecting sleeve 1, and the deformation degree of the flexible connecting sleeve 1 in the axial direction and the radial direction is improved. The outer contours of the cross sections of the first outer ring hollow-out portion 120 and the second outer ring hollow-out portion 130 are arc-shaped, so that the stress of the flexible connecting sleeve 1 is uniform and reasonable, stress concentration cannot occur, sufficient supporting strength is guaranteed, and amplitude displacement is promoted.
According to some embodiments of the present invention, as shown in fig. 1-2, at least one hollow 100 includes a middle ring hollow 140.
The middle ring hollow-out portion 140 is disposed at the bottom of the assembling groove 200, and the middle ring hollow-out portion 140 extends in a ring shape along the circumferential direction of the assembling groove 200. The arrangement of the middle hollow-out part 140 can improve the amplitude displacement of the assembly position of the flexible connecting sleeve 1 and the air filter 2.
Further, the middle ring hollow 140 is located at the center of the groove bottom of the fitting groove 200 in the axial direction of the flexible connecting sleeve 1.
Specifically, the cross section of the middle hollow-out portion 140 is a long strip extending along the radial direction of the flexible connection sleeve 1, and the inner end thereof is rounded. Therefore, the stress concentration of the middle ring hollow part 140 can be prevented, and the axial deformation capacity of the flexible connecting sleeve 1 is improved. According to some embodiments of the present invention, as shown in fig. 1-2, at least one hollow 100 includes a first end hollow 150 and a second end hollow 160.
The first end hollow portion 150 is disposed on one end surface of the flexible connection sleeve 1 and extends in a ring shape along the circumferential direction of the one end surface of the flexible connection sleeve 1, and the second end hollow portion 160 is disposed on the other end surface of the flexible connection sleeve 1 and extends in a ring shape along the circumferential direction of the other end surface of the flexible connection sleeve 1. The arrangement of the first end hollow-out portion 150 and the second end hollow-out portion 160 can improve the radial amplitude displacement of the two end portions of the flexible connecting sleeve 1.
The width of the cross section of the first end hollow-out portion 150 gradually decreases from the outside to the inside along the axial direction of the flexible connection sleeve 1, and the width of the cross section of the second end hollow-out portion 160 gradually decreases from the outside to the inside along the axial direction of the flexible connection sleeve 1.
Specifically, the cross sections of the first end hollow-out portion 150 and the second end hollow-out portion 160 are elongated along the axial direction of the flexible connection sleeve 1, and the inner ends are rounded. As such, the first and second end hollow portions 150 and 160 are prevented from stress concentration, and amplitude displacement is improved while ensuring sufficient supporting strength. The width variation of the cross section of the first end hollow-out part 150 and the width variation of the cross section of the second end hollow-out part 160 make the flexible connecting sleeve 1 closer to the two ends, the larger the amplitude displacement thereof, thereby satisfying the swing of the component (air filter 2).
Further, the flexible connecting sleeve 1 is divided into an outer ring portion 400 and an inner ring portion 300 from inside to outside along the radial direction thereof, the axial length of the outer ring portion 400 is greater than that of the inner ring portion 300, and the outer ring portion 400 is located at the center of the inner ring portion 300 in the axial direction of the inner ring portion 300.
The first end hollow portion 150 is disposed on one end surface of the outer ring portion 400, the outer peripheral surface of the inner ring portion 300 forms an inner peripheral wall of the first end hollow portion 150, the second end hollow portion 160 is disposed on the other end surface of the outer ring portion 400, and the outer peripheral surface of the inner ring portion 300 forms an inner peripheral wall of the second end hollow portion 160.
Specifically, the outer diameter of the inner ring portion 300 is equal to the outer diameter of the burring of the liner 3. So, the turn-ups of bush 3 supports the terminal surface at inner ring portion 300 to do benefit to the fastening of fastener, and then improve joint strength, further construct first end portion fretwork portion 150 and second end portion fretwork portion 160 on outer ring portion 400, so, not only guaranteed the joint strength of flexible connection cover 1 and the installation demand of bush 3 and fastener, and promoted the radial amplitude displacement of the tip of flexible connection cover 1.
According to some embodiments of the present invention, as shown in fig. 1-2, an end surface and an outer peripheral surface of the outer ring portion 400 are chamfered, and another end surface and an outer peripheral surface of the outer ring portion 400 are chamfered. Therefore, the flexible connecting sleeve 1 is easier to put into the air filter 2, so that the vehicle is convenient to install.
According to the utility model discloses flexible connection sleeve 1, through setting up inner ring fretwork portion 110, first outer ring fretwork portion 120, second outer ring fretwork portion 130, zhonghuan fretwork portion 140, first end fretwork portion 150 and second end fretwork portion 160, atress and deformation direction that can be as required, when making flexible connection sleeve 1 atress, no matter malleation, the side pressure, twist reverse, flexible connection sleeve 1 can both carry out certain bending deformation, let the spare part of connection all obtain great amplitude displacement in the axial of assembly direction and radially.
Other configurations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "particular embodiment," "particular example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. The flexible connecting sleeve is characterized in that the cross section of the flexible connecting sleeve is annular, and at least one hollow part is constructed in the peripheral wall of the flexible connecting sleeve.
2. Flexible connection sleeve according to claim 1, characterised in that the hollow-out extends annularly along the circumference of the circumferential wall of the flexible connection sleeve.
3. Flexible connection sleeve according to claim 1, characterised in that said at least one hollow comprises:
the inner ring hollow-out part is arranged on the inner circumferential surface of the flexible connecting sleeve and extends in a ring shape along the circumferential direction of the inner circumferential surface of the flexible connecting sleeve.
4. The flexible connection sleeve according to claim 3, wherein the inner ring hollow is located at the center of the flexible connection sleeve in the axial direction of the flexible connection sleeve.
5. Flexible connection sleeve according to claim 3, characterised in that the inner ring hollow comprises:
the flexible connecting sleeve comprises a first ring part and a second ring part, wherein the first ring part and the second ring part are arranged along the axial direction of the flexible connecting sleeve, the first ring part and the second ring part are communicated with each other, and arc transition is formed between the first ring part and the second ring part.
6. The flexible connection sleeve according to claim 5, wherein the width of the cross section of the first ring part is gradually reduced from inside to outside along the radial direction of the flexible connection sleeve;
the width of the cross section of the second ring part is gradually reduced from inside to outside along the radial direction of the flexible connecting sleeve.
7. The flexible connecting sleeve according to claim 1, wherein the outer circumferential surface of the flexible connecting sleeve is provided with an assembling groove, the assembling groove extends in a ring shape along the circumferential direction of the outer circumferential surface of the flexible connecting sleeve, and the at least one hollow portion comprises:
the first outer ring hollow-out part is arranged at the joint of the bottom of the assembling groove and one side wall, and extends along the circumferential direction of the assembling groove to form a ring shape;
the second outer ring hollow-out part is arranged at the joint of the groove bottom of the assembling groove and the other side wall, and the second outer ring hollow-out part extends along the circumferential direction of the assembling groove to form a ring.
8. The flexible connecting sleeve according to claim 7, wherein the outer contours of the cross sections of the first outer ring hollow-out portion and the second outer ring hollow-out portion are both circular arc-shaped.
9. The flexible connecting sleeve according to claim 1, wherein the outer circumferential surface of the flexible connecting sleeve is provided with an assembling groove, the assembling groove extends in a ring shape along the circumferential direction of the outer circumferential surface of the flexible connecting sleeve, and the at least one hollow portion comprises:
the middle ring hollow part is arranged at the bottom of the assembling groove and extends along the circumferential direction of the assembling groove to form a ring.
10. The flexible connection sleeve according to claim 9, wherein the middle ring hollow is located at the center of the bottom of the fitting groove in the axial direction of the flexible connection sleeve.
11. Flexible connection sleeve according to claim 1, characterised in that said at least one hollow comprises:
the first end part hollow part is arranged on one end face of the flexible connecting sleeve and extends in a ring shape along the circumferential direction of one end face of the flexible connecting sleeve;
the second end hollow-out part is arranged on the other end face of the flexible connecting sleeve and extends along the circumferential direction of the other end face of the flexible connecting sleeve to form a ring.
12. The flexible connecting sleeve according to claim 11, wherein the width of the cross section of the hollow portion of the first end portion is gradually reduced from outside to inside along the axial direction of the flexible connecting sleeve;
the width of the cross section of the second end hollow part is gradually reduced from outside to inside along the axial direction of the flexible connecting sleeve.
13. The flexible connecting sleeve according to claim 12, wherein the flexible connecting sleeve is divided into an outer ring portion and an inner ring portion along the radial direction of the flexible connecting sleeve from inside to outside, and the axial length of the outer ring portion is smaller than that of the inner ring portion;
the first end part hollow part is arranged on one end face of the outer ring part, and the outer peripheral surface of the inner ring part forms the inner peripheral wall of the first end part hollow part;
the second end hollow part is arranged on the other end face of the outer ring part, and the outer peripheral face of the inner ring part forms the inner peripheral wall of the second end hollow part.
14. The flexible connecting sleeve according to claim 13, wherein an end surface and an outer peripheral surface of the outer ring portion are chamfered;
and a chamfer angle is formed between the other end surface of the outer ring part and the outer peripheral surface.
15. A vehicle, characterized by comprising:
a flexible connecting sleeve according to any one of claims 1-14;
the air filter is provided with a mounting hole, and the flexible connection sleeve is arranged in the mounting hole;
the bushing penetrates through the flexible connecting sleeve;
a frame, the bushing being mounted to the frame by a fastener passing therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702351.1U CN211441944U (en) | 2019-10-11 | 2019-10-11 | Flexible connecting sleeve and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702351.1U CN211441944U (en) | 2019-10-11 | 2019-10-11 | Flexible connecting sleeve and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211441944U true CN211441944U (en) | 2020-09-08 |
Family
ID=72295069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921702351.1U Active CN211441944U (en) | 2019-10-11 | 2019-10-11 | Flexible connecting sleeve and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211441944U (en) |
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2019
- 2019-10-11 CN CN201921702351.1U patent/CN211441944U/en active Active
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