CN218112793U - Well access structure, front floor structure and car - Google Patents
Well access structure, front floor structure and car Download PDFInfo
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- CN218112793U CN218112793U CN202220799764.1U CN202220799764U CN218112793U CN 218112793 U CN218112793 U CN 218112793U CN 202220799764 U CN202220799764 U CN 202220799764U CN 218112793 U CN218112793 U CN 218112793U
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Abstract
The utility model provides a middle channel structure, which comprises a middle channel body, a front middle floor connecting plate, a bottom reinforcing plate and a pair of middle channel side beams, wherein the middle channel body extends from a front wall plate of an automobile to the front middle floor connecting plate; the pair of middle channel side beams are respectively arranged at two sides of the bottom of the middle channel body along the length direction of the middle channel body, one end of each middle channel side beam is connected with the front end of the middle channel body, and the other end of each middle channel side beam is connected with the front middle floor connecting plate; the bottom reinforcing plate is arranged at the bottom of the middle channel body along the width direction of the middle channel body, one end of the bottom reinforcing plate is connected with one of the middle channel side beams, the other end of the bottom reinforcing plate is connected with the other middle channel side beam, and the middle of the bottom reinforcing plate is connected with the bottom of the middle channel body. The utility model discloses a well access structure, preceding floor structure and car can improve the rigidity performance of well passageway rear portion structure.
Description
Technical Field
The utility model relates to an automobile structure technical field especially relates to a well access structure, preceding floor structure and car.
Background
The rear structure of the middle channel is an important component of a front floor frame, and is mainly used for bearing the integral structure of the front floor of the vehicle body, so that the vehicle body has enough rigidity performance on the whole and the local part, and simultaneously, the requirements of arrangement, man-machine, collision and the like are met. For the second row of passengers, the rear structure of the tunnel in the front floor directly affects the footwell and comfort for the passengers. Particularly for the four-wheel drive vehicle, the power transmission shaft passes through the bottom of the middle channel, and the transmission shaft can transmit the vibration of the engine to the rear area of the middle channel, so that the foot placing area of the second row of passengers has a shaking poor riding feeling. However, the rigidity and the local modal performance of the rear part of the middle channel in the prior art are insufficient, and the adverse effect on passengers caused by the vibration possibly generated in the rear part of the middle channel cannot be avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough problem of current well passageway rear portion structural rigidity and local modal performance provides a well access structure.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
a center tunnel structure includes a center tunnel body extending from a dash panel to a front center floor connecting plate of an automobile; the pair of middle channel side beams are respectively arranged at two sides of the bottom of the middle channel body along the length direction of the middle channel body, one end of each middle channel side beam is connected with the front end of the middle channel body, and the other end of each middle channel side beam is connected with the front middle floor connecting plate; the bottom reinforcing plate is installed at the bottom of the middle channel body along the width direction of the middle channel body, one end of the bottom reinforcing plate is connected with one of the middle channel side beams, the other end of the bottom reinforcing plate is connected with the other middle channel side beam, and the middle of the bottom reinforcing plate is connected with the bottom of the middle channel body.
Further, the middle channel body comprises a middle channel top wall and two middle channel side walls which are respectively arranged on the side surfaces of the middle channel top wall; each middle channel side beam is a U-shaped groove piece with an upward opening, and the middle channel side beams and the middle channel side walls which are positioned on the same side of the middle channel body are connected to form a first cavity on two sides of the middle channel body respectively.
Furthermore, a plurality of second cavities are arranged at the rear end part of the middle channel body and extend along the length direction of the middle channel body; the front middle floor connecting plate is provided with a plurality of third cavities, the third cavities extend along the length direction of the middle channel body, and the second cavities are communicated with the third cavities.
Further, the bottom reinforcing plate is a U-shaped groove piece with an upward opening, and the bottom reinforcing plate is connected with the bottom of the middle channel body to form a closed fourth cavity.
The utility model also provides a front floor structure, including foretell well access structure, set up in a pair of front floor front beam of well access structure both sides, set up in a pair of front floor rear frame member of well access structure both sides.
Furthermore, the front floor structure further comprises a rear reinforcing beam, the rear reinforcing beam is installed at the top of the middle channel body along the width direction of the middle channel body, one end of the rear reinforcing beam is connected with one front floor rear beam, the other end of the rear reinforcing beam is connected with the other front floor rear beam, and the middle of the rear reinforcing beam is connected with the top of the middle channel body.
Further, the rear reinforcing beam is a groove piece with a downward opening, and the rear reinforcing beam is connected with the top of the middle channel body to form a closed fifth cavity.
Further, the rear reinforcing cross member is located between the bottom reinforcing plate and the front middle floor connecting plate.
Furthermore, the center channel structure further comprises a front reinforcing cross beam, the front reinforcing cross beam is installed at the bottom of the center channel body along the width direction of the center channel body, the front reinforcing cross beam is further located between the pair of front floor front cross beams, one end of the front reinforcing cross beam is connected with one of the center channel side beams, the other end of the front reinforcing cross beam is connected with the other center channel side beam, and the middle of the front reinforcing cross beam is connected with the bottom of the center channel body.
The utility model also provides a car, including foretell front floor structure.
The utility model has the advantages that the middle channel side beam penetrates the whole middle channel body and extends to the front middle floor connecting plate, so that the transverse bending and shaking of the rear structure of the middle channel can be prevented; the middle channel side beam and the bottom reinforcing plate form an I-shaped frame, the I-shaped frame is attached to the whole middle channel body, the whole middle channel body is longitudinally and transversely reinforced, the structural rigidity and the modal performance of the rear part of the middle channel are improved, and therefore the bad feeling of shaking of a foot placing area when a passenger sits due to the vibration excited by the chassis can be avoided.
Drawings
Fig. 1 is a schematic view of a center tunnel structure according to an embodiment of the present invention;
fig. 2 is a top view of a center channel structure according to an embodiment of the present invention;
FIG. 3 isbase:Sub>A schematic view of FIG. 2 taken along line A-A;
fig. 4 is a bottom view of a center channel structure according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a bottom reinforcing plate according to an embodiment of the present invention;
fig. 6 is a structural schematic view of the rear reinforcing crossmember.
The reference numbers in the drawings of the specification are as follows:
100. a middle channel structure; 200. a floor structure; 1. a middle channel body; 11. a top wall of the central passage; 12. a middle channel side wall; 121. a first plane; 122. a second plane; 123. a first side surface; 124. a second side surface; 13. a second cavity; 2. a front middle floor connecting plate; 21. a third cavity; 3. a bottom stiffener; 31. a fourth cavity; 32. a bottom gusset body; 33. a first flanging; 34. second flanging; 35. third flanging; 36. a fourth flanging; 4. a center tunnel side sill; 41. a first cavity; 42. a first side sill side wall; 43. a second side sill side wall; 44. side sill bottom walls; 45. flanging the side beams; 5. a dash panel; 6. a front floor front cross member; 7. A front floor rear cross member; 8. a rear reinforcing cross member; 81. a fifth cavity; 82. a rear reinforcing cross beam body; 83. a recessed portion; 84. fifthly, flanging; 85. sixth flanging; 86. seventh flanging; 87. eighth flanging; 9. the front reinforcing cross member.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, a center tunnel structure 100 provided by an embodiment of the present invention includes a center tunnel body 1, a front center floor connecting plate 2, a bottom reinforcing plate 3, and a pair of center tunnel side beams 4, wherein the center tunnel body 1 extends from a front wall 5 of an automobile to the front center floor connecting plate 2; a pair of middle channel side beams 4 are respectively arranged at two sides of the bottom of the middle channel body 1 along the length direction of the middle channel body 1, one end of each middle channel side beam 4 is connected with the front end of the middle channel body 1, and the other end of each middle channel side beam 4 is connected with the front middle floor connecting plate 2; the bottom reinforcing plate 3 is installed at the bottom of the center channel body 1 along the width direction of the center channel body 1, one end of the bottom reinforcing plate 3 is connected with one of the center channel side beams 4, the other end of the bottom reinforcing plate 3 is connected with the other center channel side beam 4, and the middle of the bottom reinforcing plate 3 is connected with the bottom of the center channel body 1.
The middle channel side beam 4 penetrates through the whole middle channel body 1 and extends to the front middle floor connecting plate 2, so that the transverse bending and shaking of the rear structure of the middle channel can be prevented; the middle channel side beam 4 and the bottom reinforcing plate 3 form an I-shaped frame, the I-shaped frame is attached to the whole middle channel body 1, the whole middle channel body 1 is longitudinally and transversely reinforced, the rigidity and the modal performance of the rear part of the middle channel are improved, and therefore the bad feeling of shaking a foot placing area when a passenger sits due to the vibration excited by the chassis can be avoided.
As shown in fig. 2 and 3, the center tunnel body 1 includes a center tunnel top wall 11 and two center tunnel side walls 12 respectively provided at sides of the center tunnel top wall 11; each middle channel side beam 4 is a U-shaped groove member with an upward opening, and the middle channel side beam 4 and the middle channel side wall 12 which are positioned on the same side of the middle channel body 1 are connected to form a first cavity 41 on two sides of the middle channel body 1 respectively. The top wall 11 and the side wall 12 of the middle channel are connected to form a structure with a cross section shaped like a Chinese character 'ji'. The side wall 12 of the middle passage comprises a first plane 121, a second plane 122, a first side 123 and a second side 124, wherein the first plane 121 and the first side 123 are connected to form a first step surface, and the second plane 122 and the second side 124 are connected to form a second step surface. The first side 123 is connected to the top wall 11 of the middle passage, and the second side 124 is connected to the first plane 121 to connect the first step surface and the second step surface to form a two-layer step surface.
The center channel side beam 4 comprises a first side beam side wall 42, a second side beam side wall 43, a side beam bottom wall 44 and a side beam flange 45, wherein the first side beam side wall 42, the side beam bottom wall 44 and the second side beam side wall 43 are sequentially connected to form a structure with a U-shaped section, the side beam flange 45 extends from the second side beam side wall 43, the side beam flange 45 is parallel to the side beam bottom wall 44, and the side beam flange 45 is higher than the side beam bottom wall 44 in the height direction of the center channel body 1. The first side beam sidewall 42 is connected with the first side surface 123 through a fixing piece along the width direction of the center tunnel body 1 or welded and bonded along the width direction of the center tunnel body 1, and the side beam flange 45 is connected with the second plane 122 through a fixing piece along the height direction of the center tunnel body 1 or welded and bonded along the height direction of the center tunnel body 1, so that the center tunnel side beam 4 is connected with the center tunnel sidewall 12 to form the first cavity 41.
By forming the strip-shaped first cavities 41 on the two sides of the middle channel body 1 and extending the first cavities 41 to the front middle floor connecting plate 2 in the vehicle rear direction, the first cavities 41 penetrate through the whole middle channel body 1 in the front and rear direction, the overall rigidity performance of the middle channel body 1 and the rigidity and NVH performance of the rear area of the middle channel body 1, namely the area where feet of passengers are placed by the second row, can be further improved, and the bad feeling that the feet of the passengers are placed when the passengers sit due to the vibration excited by the chassis is avoided. Meanwhile, the volume of the first cavity 41 can be increased through the two-layer stepped surface structure of the middle channel side wall 12, so that the rigidity performance of the first cavity 41 is enhanced.
The rear end part of the middle channel body 1 is provided with a plurality of second cavities 13, and the second cavities 13 extend along the length direction of the middle channel body 1; a plurality of third cavities 21 are arranged on the front middle floor connecting plate 2, the third cavities 21 extend along the length direction of the middle channel body 1, and the second cavities 13 are connected with the third cavities 21 to be communicated. Preferably, three second cavities 13 are provided at the end of the center tunnel body 1 near the front center floor connecting plate 2, and are evenly spaced at both sides and in the middle of the end of the center tunnel body 1 near the front center floor connecting plate 2. The second cavity 13 is shaped like a Chinese character 'ji', and the second cavity 13 protrudes upwards along the top wall 11 of the middle channel and is opened downwards. Three third cavities 21 communicated with the second cavity 13 are arranged on the front middle floor connecting plate 2, and the third cavities 21 are upwards protruded along the top wall of the front middle floor connecting plate 2 and are downward opened. Three second cavities 13 in the shape of Chinese character 'ji' penetrate through the rear end of the middle channel body 1 and the front middle floor connecting plate 2 on the section of the rear area of the middle channel body 1, so that the rigidity and the mode of the rear area of the middle channel can be further improved, and the bad feeling of shaking of a foot placing area when passengers sit due to the vibration excited by a chassis is avoided.
As shown in fig. 4 and 5, the bottom reinforcing plate 3 is a U-shaped channel member with an upward opening, and the bottom reinforcing plate 3 is connected with the bottom of the middle channel body 1 to form a closed fourth cavity 31. The bottom reinforcing plate 3 comprises a bottom reinforcing plate body 32, the bottom reinforcing plate body 32 is connected with the bottom surface of the middle channel top wall 11 to form a closed fourth cavity 31, a first flanging 33, a second flanging 34, a third flanging 35 and a fourth flanging 36 extend around the bottom reinforcing plate body 32, the first flanging 33 and the second flanging 34 are connected with the bottom surface of the middle channel top wall 11, and the third flanging 35 and the fourth flanging 36 are respectively connected with the middle channel side beams 4 on two sides.
As shown in fig. 1, the present invention further provides a front floor structure 200, which includes the above-mentioned middle channel structure 100, and a pair of front floor front beams 6 disposed on two sides of the middle channel structure 100, and a pair of front floor rear beams 7 disposed on two sides of the middle channel structure 100. The front floor structure 200 adopts the middle channel structure 100, and the middle channel side beam 4 penetrates through the whole middle channel body 1 and extends to the front middle floor connecting plate 2, so that the transverse bending and shaking of the rear structure of the middle channel can be prevented; the middle channel side beam 4 and the bottom reinforcing plate 3 form an I-shaped frame, the I-shaped frame is attached to the whole middle channel body 1, the whole middle channel body 1 is longitudinally and transversely reinforced, and the I-shaped frame plays an important role in improving the structural rigidity and the modal performance of the rear part of the middle channel. The application uses the center tunnel structure 100 to connect with the front floor front cross beam 6 and the front floor rear cross beam 7 to form the front floor structure 200, and can respond to the improvement of the rigidity and the modal performance of the rear part of the front floor.
As shown in fig. 1, 2 and 6, the front floor structure 200 further includes a rear reinforcing cross member 8, the rear reinforcing cross member 8 is installed on the top of the center tunnel body 1 in the width direction of the center tunnel body 1, one end of the rear reinforcing cross member 8 is connected to one of the front floor rear cross members 7, the other end of the rear reinforcing cross member 8 is connected to the other front floor rear cross member 7, and the middle portion of the rear reinforcing cross member 8 is connected to the top of the center tunnel body 1. The rear reinforcing beam 8 is a groove member with a downward opening, and the rear reinforcing beam 8 is connected with the top of the middle channel body 1 to form a closed fifth cavity 81. One end of the front floor rear cross member 7 near the center tunnel body 1 is connected to the first plane 121 and the second plane 122 of the center tunnel side wall 12. The rear reinforcing beam 8 is a channel member with a downward opening, the rear reinforcing beam 8 comprises a rear reinforcing beam body 82, and the rear reinforcing beam body 82 is connected with the top surface of the middle channel top wall 11 to form a closed fifth cavity 81. The rear reinforcing cross member body 82 is provided with a recess 83, and the center tunnel top wall 11 and the center tunnel side wall 12 are connected to form a zigzag structure passing through the recess 83. A fifth flange 84, a sixth flange 85, a seventh flange 86 and an eighth flange 87 extend from the periphery of the rear reinforcing beam body 82. The middle part of the fifth flanging 84 is connected with the top wall 11 of the middle channel, and the end part of the fifth flanging 84 is connected with the rear cross beam 7 of the front floor on the first plane 121; the middle part of the sixth flanging 85 is connected with the top wall 11 of the middle channel, and the end part of the sixth flanging 85 is connected with the rear cross beam 7 of the front floor on the first plane 121; the seventh flange 86 is connected to the end of the front floor rear cross member 7 on one side of the center tunnel structure 100, and the eighth flange 87 is connected to the end of the front floor rear cross member 7 on the other side of the center tunnel structure 100. The rear reinforcing cross beam 8 crosses the middle channel body 1 to be connected with the rear front floor cross beams 7 positioned on two sides of the middle channel structure 100, so that the rear front floor cross beams 7 and the middle channel structure 100 can be connected to form a more stable front floor frame reinforcing structure in an integrated mode, the rear reinforcing cross beam 8 is connected with the top of the middle channel body 1 to form a closed fifth cavity 81, and the rear rigidity and strength performance of the middle channel structure 100 is improved.
As shown in fig. 4, the rear reinforcing crossmember 8 is located between the bottom reinforcing plate 3 and the front middle floor connecting plate 2. The distance between the rear reinforcing crossmember 8 and the bottom reinforcing plate 3 is smaller than the distance between the rear reinforcing crossmember 8 and the front middle floor connecting plate 2. The reinforcing cross beam 8 at the rear part of the middle channel and the reinforcing plate 3 at the bottom are designed in a staggered manner, and form a reinforcing structure with two longitudinal and two transverse directions with the side beams 4 of the middle channel at two sides of the middle channel body 1, so that the effect of reinforcing the rear part structure of the middle channel in a large area is achieved, the whole structure is more compact and stable, and the rigidity and strength performance of the rear part of the middle channel are effectively improved.
As shown in fig. 1, the center tunnel structure 100 further includes a front reinforcing cross member 9, the front reinforcing cross member 9 is installed at the bottom of the center tunnel body 1 in the width direction of the center tunnel body 1, the front reinforcing cross member 9 is further located between the pair of front floor front cross members 6, one end of the front reinforcing cross member 9 is connected to one of the center tunnel side members 4, the other end of the front reinforcing cross member 9 is connected to the other of the center tunnel side members 4, and the middle portion of the front reinforcing cross member 9 is connected to the bottom of the center tunnel body 1. The front reinforcing cross beam 9 is of a U-shaped plate structure with a downward opening, one end of the front reinforcing cross beam 9 is connected with a first side beam side wall 42 positioned on one side of the middle channel body 1, the other end of the front reinforcing cross beam 9 is connected with a first side beam side wall 42 positioned on the other side of the middle channel body 1, and the middle of the front reinforcing cross beam 9 is connected with the bottom surface of the middle channel top wall 11 through a flanging, so that a gap space is formed between the front reinforcing cross beam 9 and the bottom surface of the middle channel top wall 11. The front reinforcing cross beam 9 is connected with the front floor front cross beams 6 positioned at two sides of the middle channel structure 100 from the bottom of the middle channel body 1, so that the front floor front cross beams 6 at two sides disconnected by the middle channel structure 100 can be connected, the front floor front cross beams 6 and the middle channel can be connected into a more stable front floor frame reinforcing structure, and the rear rigidity and strength performance of the middle channel structure 100 are improved.
The utility model also provides an automobile, including foretell front floor structure 200. The front floor structure 200 adopts the center channel structure 100, and the center channel side beam 4 penetrates through the whole center channel body 1 and extends to the rear end of the front center floor connecting plate 2, so that the transverse bending and shaking of the rear part of the center channel can be prevented; the middle channel side beam 4 and the bottom reinforcing plate 3 form an I-shaped frame, the I-shaped frame is attached to the whole middle channel body 1, the whole middle channel body 1 is longitudinally and transversely reinforced, and the I-shaped frame plays an important role in improving the rigidity and the modal performance of the rear part of the middle channel. Meanwhile, the rear reinforcing beam 8 is buckled in the upper area of the rear part of the middle channel body 1, the longitudinal rigidity strength of the rear part of the middle channel can be improved, and when the rear part of the middle channel is subjected to vibration transmitted from the chassis, the rear reinforcing beam 8 can reduce the vibration brought by the middle channel body 1; the rear reinforcing cross beam 8, the middle channel side beam 4 positioned at the bottom of the middle channel body 1 and the bottom reinforcing plate 3 form a reinforcing structure with two longitudinal and two transverse directions, the whole structure is more compact and stable, and the overall rigidity of the middle channel is further improved. In addition, the section of the rear area of the middle channel body 1 is formed by three n-shaped third cavities 21 penetrating through the middle channel body 1 and the front middle floor connecting plate 2, so that the local modal performance of the rear part of the middle channel body 1 is improved. Through the structure, the rigidity and the mode of the rear area of the middle channel are greatly enhanced, so that the bad feeling of shaking of the foot placing area when passengers sit due to the vibration excited by the chassis can be avoided.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. A center tunnel structure is characterized by comprising a center tunnel body, a front center floor connecting plate, a bottom reinforcing plate and a pair of center tunnel side beams, wherein the center tunnel body extends from a front wall plate of an automobile to the front center floor connecting plate; the pair of middle channel side beams are respectively arranged at two sides of the bottom of the middle channel body along the length direction of the middle channel body, one end of each middle channel side beam is connected with the front end of the middle channel body, and the other end of each middle channel side beam is connected with the front middle floor connecting plate; the bottom reinforcing plate is installed at the bottom of the middle channel body along the width direction of the middle channel body, one end of the bottom reinforcing plate is connected with one of the middle channel side beams, the other end of the bottom reinforcing plate is connected with the other middle channel side beam, and the middle of the bottom reinforcing plate is connected with the bottom of the middle channel body.
2. The mesochannel structure as claimed in claim 1, wherein the mesochannel body comprises a mesochannel top wall and two mesochannel side walls disposed at sides of the mesochannel top wall, respectively; each middle channel side beam is a U-shaped groove piece with an upward opening, and the middle channel side beams and the middle channel side walls which are positioned on the same side of the middle channel body are connected to form a first cavity on two sides of the middle channel body respectively.
3. The mesochannel structure of claim 1, wherein the rear end of the mesochannel body is provided with a plurality of second cavities extending along the length of the mesochannel body; the front middle floor connecting plate is provided with a plurality of third cavities, the third cavities extend along the length direction of the middle channel body, and the second cavities are communicated with the third cavities.
4. The mesochannel structure of claim 1, wherein the bottom stiffener is an upwardly open U-shaped channel, and the bottom stiffener is connected to the bottom of the mesochannel body to form a closed fourth cavity.
5. A front floor structure comprising a center tunnel structure as claimed in any one of claims 1 to 4, a pair of front floor front cross members disposed on either side of the center tunnel structure, and a pair of front floor rear cross members disposed on either side of the center tunnel structure.
6. The front floor structure according to claim 5, further comprising a rear reinforcement beam installed at the top of the center tunnel body in the width direction of the center tunnel body, one end of the rear reinforcement beam being connected to one of the front floor rear beams, the other end of the rear reinforcement beam being connected to the other front floor rear beam, and the middle portion of the rear reinforcement beam being connected to the top of the center tunnel body.
7. The front floor structure according to claim 6, wherein the rear reinforcing beam is a downwardly opening channel member, and the rear reinforcing beam is connected with the top of the center channel body to form a closed fifth cavity.
8. A front floor structure according to claim 6, wherein the rear reinforcing cross member is located between the bottom reinforcing plate and the front mid-floor connecting plate.
9. The front floor structure according to claim 5, wherein said center tunnel structure further comprises a front reinforcing cross member mounted at the bottom of said center tunnel body in the width direction thereof, said front reinforcing cross member being further located between said pair of front floor front cross members, one end of said front reinforcing cross member being connected to one of said center tunnel side members, the other end of said front reinforcing cross member being connected to the other of said center tunnel side members, and the middle of said front reinforcing cross member being connected to the bottom of said center tunnel body.
10. An automobile, characterized by comprising a front floor structure according to any one of claims 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799764.1U CN218112793U (en) | 2022-04-07 | 2022-04-07 | Well access structure, front floor structure and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799764.1U CN218112793U (en) | 2022-04-07 | 2022-04-07 | Well access structure, front floor structure and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218112793U true CN218112793U (en) | 2022-12-23 |
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ID=84494996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220799764.1U Active CN218112793U (en) | 2022-04-07 | 2022-04-07 | Well access structure, front floor structure and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218112793U (en) |
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2022
- 2022-04-07 CN CN202220799764.1U patent/CN218112793U/en active Active
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