CN218986589U - Semitrailer by supporting wheels - Google Patents
Semitrailer by supporting wheels Download PDFInfo
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- CN218986589U CN218986589U CN202222883148.7U CN202222883148U CN218986589U CN 218986589 U CN218986589 U CN 218986589U CN 202222883148 U CN202222883148 U CN 202222883148U CN 218986589 U CN218986589 U CN 218986589U
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- fixed block
- pin
- turnover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model provides a supporting wheel for semitrailer can realize supporting wheel altitude mixture control, can adapt to various support application scenario before semitrailer and tractor are connected, including elevating system, linking bridge, gyro wheel, the elevating system lower extreme is connected with the linking bridge, the lower extreme of linking bridge is equipped with the gyro wheel. The outer shell of the lifting mechanism bag is of a square column-shaped hollow tubular structure, a bearing is fixedly arranged at the upper end of the outer shell, the lead screw is positioned in the outer shell, the outer side wall of the upper part of the lead screw is fixedly connected with the inner ring of the bearing, and the crank is positioned above the outer shell, and the lower end of the crank is fixedly connected with the upper end of the lead screw; the lifter is square column hollow tubular structure, is equipped with on the inside wall of lifter with lead screw matched with screw thread, on lifter spiro union and the lead screw, the lower extreme of lifter is connected with the linking bridge, connect the fixed plate to set firmly on the lateral wall of shell body, evenly offered at least three location through-hole along its vertical direction on the connection fixed plate.
Description
Technical Field
The utility model belongs to the technical field of semi-trailers, and relates to a supporting wheel for a semi-trailer.
Background
In the process of connecting the semitrailer and the tractor, the supporting wheels are often used, the supporting wheels are firstly mounted on the front frame of the semitrailer when in use, then the semitrailer is transported to the position of the tractor through the cooperation of the rear wheels of the semitrailer and the supporting wheels, and then the supporting wheels are lifted, so that the front frame of the semitrailer is lifted to be connected with the tractor. The prior art often has a limited lifting height of the supporting wheel, when the front frame of the semitrailer rises to a proper height, and the connection difficulty between the semi-trailer and the tractor is improved. The technical problem that the supporting wheels cannot be separated from the ground after the semitrailer is connected with the tractor exists, namely, the rollers of part of the supporting wheels are still contacted with the ground after rising, and the supporting wheels are contacted with the ground to rotate in the process of towing the semitrailer by the tractor, so that the service life of the supporting wheels is reduced.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the following technical scheme:
the supporting wheel for the semitrailer comprises a lifting mechanism, a connecting bracket and rollers, wherein the lower end of the lifting mechanism is connected with the connecting bracket, and the rollers are arranged at the lower end of the connecting bracket;
the lifting mechanism comprises a crank, a screw rod, a bearing, an outer shell, a lifting pipe and a connecting and fixing plate, wherein the outer shell is of a square column-shaped hollow tubular structure, the bearing is fixedly arranged at the upper end of the outer shell, the outer ring of the bearing is fixedly connected with the inner side wall of the outer shell, the lead screw is positioned in the outer shell, the outer side wall of the upper part of the lead screw is fixedly connected with the bearing inner ring, the crank is positioned above the outer shell, and the lower end of the crank is fixedly connected with the upper end of the lead screw; the lifting tube is of a square column-shaped hollow tubular structure, threads matched with the screw rod are arranged on the inner side wall of the lifting tube, the lifting tube is connected with the screw rod in a threaded mode, the lower end of the lifting tube is connected with a connecting support, the connecting fixing plate is fixedly arranged on the outer side wall of the outer shell, and at least three positioning through holes are evenly formed in the connecting fixing plate along the vertical direction of the connecting fixing plate.
As a supplement to the technical scheme, the connecting bracket comprises a fixed block, a turnover plate, a first pin shaft and a first cotter pin;
the fixed block is connected with the lifting pipe of the lifting mechanism and is arranged at the lower end of the lifting pipe, two turnover plates are arranged and have the same structure, the two turnover plates are positioned at two sides of the fixed block, the upper ends of the two turnover plates are rotatably connected with the fixed block, the lower ends of the two turnover plates are clamped with rollers, and the rollers are rotatably connected with the turnover plates; the upper parts of the overturning plates are provided with first through holes, the first pin shafts sequentially penetrate through the first through holes on the two overturning plates, and the first opening pins penetrate through pin holes of the first pin shafts to fix the first pin shafts;
the fixed block is square structure, the position that the upset board is connected with the fixed block is located the upper left portion of fixed block, the interval between position distance fixed block lower right corner that upset board is connected with the fixed block is greater than the interval of the position distance upset board that upset board is connected with the fixed block first through-hole on the board.
As a supplement to the technical scheme, a first groove is formed in the lower end face of the fixed block, and a second groove is formed in the right end face of the fixed block;
when the turnover plate is in an unflexed state, the idler wheel is positioned below the fixed block, the first pin shaft is positioned in a first groove of the fixed block, and the first groove limits the turnover plate so that the turnover plate cannot turn around the fixed block;
when the turnover plate is in a turnover state, the idler wheel is positioned on the right side of the fixed block, the first pin shaft is positioned in the second groove of the fixed block, and the second groove limits the turnover plate so that the turnover plate cannot turn around the fixed block.
The turnover plate is connected with the fixed block through the second pin shaft and the second cotter pin, a fixed block through hole is formed in the fixed block, a through hole in the turnover plate is formed in the upper end of the turnover plate, the second pin shaft penetrates through the through hole in the turnover plate and the fixed block through hole in the fixed block, and the second cotter pin is inserted into the pin shaft through hole in the tail of the second pin shaft to fix the second pin shaft.
The novel turnover device is characterized by further comprising a third pin shaft and a third cotter pin, wherein the roller is connected with the turnover plate through the third pin shaft and the third cotter pin, a through hole under the turnover plate is formed in the lower end of the turnover plate, the third pin shaft penetrates through the through hole under the turnover plate and the axle center of the roller, and the third cotter pin is inserted into the pin shaft through hole at the tail part of the third pin shaft to fix the third pin shaft.
As a supplement to the technical proposal, the connecting and fixing plate is provided with five positioning through holes along the vertical direction.
The beneficial effects are that: in one aspect, the height of the roller wheels from the ground can be adjusted by the lifting mechanism when the supporting wheels are arranged on the front frame of the semitrailer through the connecting and fixing plate; in another aspect of the utility model, the horizontal height of the whole supporting wheel compared with the ground can be realized by connecting the positioning through holes which are vertically and uniformly arranged on the fixed plate; in another aspect of the utility model, the turnover function of the roller can be realized through the arrangement of the structures such as the fixed block, the first groove, the second groove and the first pin shaft, so as to solve the problem that the roller still contacts the ground after the lifting mechanism is adjusted after the part of the semitrailer is connected with the tractor and the connection position of the connecting fixed plate and the front frame of the semitrailer is adjusted.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present utility model.
Fig. 2 is a schematic side view of the present utility model.
Fig. 3 is a schematic side view of the present utility model.
Fig. 4 is a schematic view of a structure of a fixing plate according to the present utility model.
Fig. 5 is a schematic view of the structure of the connecting bracket of the present utility model.
Fig. 6 is a schematic view of the structure of the fixing block of the present utility model.
In the figure: 1. lifting mechanism, 2, crank, 3, lead screw, 4, bearing, 5, outer shell, 6, lifting tube, 7, fixed plate, 8, connecting bracket, 9, fixed block, 10, turnover plate, 11, first pin, 12, first cotter pin, 13, first through hole, 14, first groove, 15, second groove, 16, second pin, 17, second cotter pin, 18, turnover plate upper through hole, 19, turnover plate lower through hole, 20, third pin, 21, third cotter pin, 22, positioning through hole, 23, roller, 24 and fixed block through hole.
Detailed Description
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 6, a support wheel for a semitrailer is used for supporting the semitrailer and for auxiliary connection between the semitrailer and a tractor. When the semi-trailer is used, the supporting wheels are arranged on the front frame of the semi-trailer, and then the semi-trailer is driven to walk to the position of the tractor through the supporting wheels on the front frame of the semi-trailer and the rear wheels of the semi-trailer, so that the tractor is connected with the semi-trailer.
The supporting wheel comprises a lifting mechanism 1, a connecting bracket 8 and a roller 23, wherein the lower end of the lifting mechanism 1 is connected with the connecting bracket 8, and the roller 23 is arranged at the lower end of the connecting bracket 8. The lifting mechanism 1 comprises a crank 2, a screw rod 3, a bearing 4, an outer shell 5, a lifting tube 6 and a connecting fixing plate 7, wherein the outer shell 5 is of a square column-shaped hollow tubular structure, the bearing 4 is fixedly arranged at the upper end of the outer shell 5, the outer ring of the bearing 4 is fixedly connected with the inner side wall of the outer shell 5, the screw rod 3 is positioned inside the outer shell 5, the outer side wall of the upper part of the screw rod 3 is fixedly connected with the inner ring of the bearing 4, and the screw rod 3 can rotate relative to the outer shell 5 through the arrangement of the bearing 4. The crank 2 is positioned above the outer shell 5, the lower end of the crank 2 is fixedly connected with the upper end of the screw rod 3, and the screw rod 3 can be driven to rotate by rotating the crank 2. The lifting tube 6 is of a square column-shaped hollow tubular structure, threads matched with the screw rod 3 are arranged on the inner side wall of the lifting tube 6, the lifting tube 6 is connected with the screw rod 3 in a screwed mode, and when the crank 2 drives the screw rod 3 to rotate, the lifting tube 6 can ascend or descend along the screw rod 3 in the outer shell 5. The lower extreme of lifter tube 6 is connected with linking bridge 8 through bearing 4 structure, and gyro wheel 23 sets up in the lower extreme of linking bridge 8, and the elevating movement of lifter tube 6 drives gyro wheel 23 and goes up and down.
The connecting and fixing plate 7 is fixedly arranged on the outer side wall of the outer shell 5, at least three positioning through holes 22 are uniformly formed in the connecting and fixing plate 7 along the vertical direction, the outer shell 5 of the lifting mechanism 1 is fixedly arranged on the front frame of the semi-trailer through the connecting and fixing plate 7, and two vertically arranged threaded holes can be drilled in the front frame of the semi-trailer during installation. When the positioning through holes 22 on the connecting and fixing plate 7 are provided with three, the screw passes through the two positioning through holes 22 on the connecting and fixing plate 7, so that the distance between the supporting wheel and the ground can be reduced, and when the screw passes through the two positioning through holes 22 on the lower surface of the connecting and fixing plate 7, the distance between the supporting wheel and the ground can be increased.
As a preferable technical solution of the foregoing embodiment, the connection fixing plate 7 is provided with five positioning through holes 22 along the vertical direction thereof, and the first positioning through hole 22, the second positioning through hole 22, the third positioning through hole 22, the fourth positioning through hole 22, and the fifth positioning through hole 22 are sequentially arranged from top to bottom. When the screw passes through the first positioning through hole 22 and the second positioning through hole 22 of the connection fixing plate 7 to fix the supporting wheel on the front support of the semi-trailer, the distance between the roller 23 on the supporting wheel and the ground is minimum, and when the screw passes through the fourth positioning through hole 22 and the fifth positioning through hole 22 of the connection fixing plate 7 to fix the supporting wheel on the front support of the semi-trailer, the distance between the roller 23 on the supporting wheel and the ground is maximum, and the screw can pass through two adjacent positioning through holes 22 according to actual requirements to connect the connection fixing plate 7 with the semi-trailer.
In addition, the distance between the threaded holes formed in the front frame of the semi-trailer can be enlarged, at the moment, the screws can pass through the first positioning through holes 22, the third positioning through holes 22, the second positioning through holes 22, the fourth positioning through holes 22, the third positioning through holes 22 and the fifth positioning through holes 22 to connect the connection fixing plate 7 with the semi-trailer, and the connection between the connection fixing plate 7 and the semi-trailer can be firmer by adopting the mode of connection.
As a preferred embodiment of the present utility model, the connection bracket 8 includes a fixing block 9, a turnover plate 10, a first pin 11, and a first cotter pin 12.
The fixed block 9 is structurally connected with the lifting tube 6 of the lifting mechanism 1 through a bearing 4 and is arranged at the lower end of the lifting tube 6, so that the fixed block 9 can freely rotate relative to the lifting mechanism 1.
The turnover plate 10 is provided with two turnover plates 10 with the same structure, the two turnover plates 10 are positioned on two sides of the fixed block 9, the upper ends of the two turnover plates 10 are rotatably connected with the fixed block 9, and when the turnover plate 10 turns over, the turnover plate 10 turns over by taking the upper end connected with the fixed block 9 as the axle center. A roller 23 is sandwiched between the two flipping boards 10, the roller 23 is located at the lower ends of the two flipping boards 10, and the roller 23 is rotatably connected to the flipping boards 10, so that the roller 23 can rotate relative to the flipping boards 10. The upper parts of the overturning plates 10 are provided with first through holes 13, the positions of the first through holes 13 are positioned on the right lower side of the connection positions of the overturning plates 10 and the fixed blocks 9, and after the first pin shafts 11 sequentially penetrate through the first through holes 13 on the two overturning plates 10, the first cotter pins 12 penetrate through pin holes of the first pin shafts 11 to fix the first pin shafts 11.
As shown in fig. 2, the supporting wheel walks to the left, the fixed block 9 has a square structure, the connection position of the turning plate 10 and the fixed block 9 is located at the upper left part of the fixed block 9, and the distance between the connection position of the turning plate 10 and the fixed block 9 and the lower right corner of the fixed block 9 is greater than the distance between the connection position of the turning plate 10 and the fixed block 9 and the first through hole 13 on the turning plate 10. Through the structure, when the supporting wheel walks, the first pin shaft 11 can be always located below the fixed block 9, the overturning plate 10 is overturned upwards to be limited, the idler wheel 23 is always located below the fixed block 9, and the supporting wheel walks are guaranteed.
When the tractor is connected with the front frame of the semitrailer, the rollers 23 are required to be retracted through the turnover plate 10, at the moment, the first cotter pins 12 are required to be pulled out, the first pin shafts 11 are pulled out from the turnover plate 10, then the turnover plate 10 is turned to the right side of the fixed block 9, when the first through holes 13 on the turnover plate 10 are positioned on the right side of the fixed block 9, the first cotter pins 12 are inserted into the first through holes 13, then the first pin shafts 11 are fixed through the first cotter pins 12, and at the moment, because the distance between the connecting position of the turnover plate 10 and the fixed block 9 and the first through holes 13 on the turnover plate 10 are larger, the first pin shafts 11 limit the downward turnover motion of the turnover plate 10 by gravity.
As a preferable solution of the foregoing embodiment, a recessed semicircular first groove 14 is provided on the lower end surface of the fixed block 9, a second groove 15 is provided on the right side end surface of the fixed block 9, and the first groove 14 and the second groove 15 form a stepped structure at the right lower angle of the fixed block;
when the turnover plate 10 is in an unoccupied state, the roller 23 is located below the fixed block 9, the first pin 11 is located in the first groove 14 of the fixed block 9, and the first groove 14 limits the turnover plate 10 so that the turnover plate 10 cannot turn around the fixed block 9. When the roller 23 is required to be in contact with the ground, the turnover plate 10 should be in an unopened state, so that the roller 23 is positioned below the fixed block 9, and the roller 23 is used for supporting the whole supporting wheel.
When the turnover plate 10 is in a turnover state, the roller 23 is positioned on the right side of the fixed block 9, the first pin shaft 11 is positioned in the second groove 15 of the fixed block 9, and the second groove 15 limits the turnover plate 10 so that the turnover plate 10 cannot turn around the fixed block 9. When the front frame of the semitrailer is connected with the tractor, the overturning plate 10 can be overturned, and the overturning process is that the first cotter pin 12 is firstly pulled out on the first pin shaft 11, then the overturning plate 10 is overturned rightwards, at the moment, the first cotter pin 12 passes through the first through hole 13 on the overturning plate 10 and the second groove 15 on the fixed block 9, and then the first cotter pin 12 passes through the pin hole on the first pin shaft 11 to fix the first pin shaft 11. The first cotter pin 12 is a wavy cotter pin, so that the technical problem that the first cotter pin 12 falls off in the use process can be avoided.
As a preferred technical scheme of the utility model, the turnover plate further comprises a second pin 16 and a second cotter pin 17, the turnover plate 10 is connected with the fixed block 9 through the second pin 16 and the second cotter pin 17, a fixed block through hole 24 is formed in the fixed block 9 of the fixed block 9, a turnover plate upper through hole 18 is formed in the upper end of the turnover plate 10, the second pin 16 penetrates through the turnover plate upper through hole 18 and the fixed block through hole 24 in the fixed block 9, and the second cotter pin 17 is inserted into a pin through hole at the tail part of the second pin 16 to fix the second pin 16. Through the arrangement of the structure, the detachable connection between the turnover plate 10 and the fixed block 9 can be realized, so that the parts can be replaced in time when damaged.
As a preferable technical scheme of the utility model, the utility model further comprises a third pin roll 20 and a third cotter pin 21, the roller 23 is connected with the turnover plate 10 through the third pin roll 20 and the third cotter pin 21, the lower end of the turnover plate 10 is provided with a turnover plate lower through hole 19, the third pin roll 20 passes through the turnover plate lower through hole 19 and the axle center of the roller 23, and the third cotter pin 21 is inserted into the pin roll through hole at the tail part of the third pin roll 20 to fix the third pin roll 20. Through the arrangement of the structure, the detachable connection between the turnover plate 10 and the roller 23 can be realized, so that the parts can be replaced in time when damaged.
While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The supporting wheel for the semitrailer is characterized by comprising a lifting mechanism (1), a connecting bracket (8) and a roller (23), wherein the lower end of the lifting mechanism (1) is connected with the connecting bracket (8), and the roller (23) is arranged at the lower end of the connecting bracket (8);
the lifting mechanism (1) comprises a crank (2), a screw rod (3), a bearing (4), an outer shell (5), a lifting tube (6) and a connecting fixing plate (7), wherein the outer shell (5) is of a square column-shaped hollow tubular structure, the bearing (4) is fixedly arranged at the upper end of the outer shell (5), the outer ring of the bearing (4) is fixedly connected with the inner side wall of the outer shell (5), the screw rod (3) is positioned in the outer shell (5), the outer side wall of the upper part of the screw rod (3) is fixedly connected with the inner ring of the bearing (4), and the crank (2) is positioned above the outer shell (5) and the lower end of the crank (2) is fixedly connected with the upper end of the screw rod (3); the lifting tube (6) is of a square column-shaped hollow tubular structure, threads matched with the screw rod (3) are arranged on the inner side wall of the lifting tube (6), the lifting tube (6) is in threaded connection with the screw rod (3), the lower end of the lifting tube (6) is connected with a connecting support (8), the connecting fixing plate (7) is fixedly arranged on the outer side wall of the outer shell (5), and at least three positioning through holes (22) are uniformly formed in the connecting fixing plate (7) along the vertical direction of the connecting fixing plate.
2. A support wheel for semitrailers according to claim 1, characterized in that the connecting bracket (8) comprises a fixed block (9), a tilting plate (10), a first pin (11), a first cotter pin (12);
the fixed block (9) is connected with the lifting tube (6) of the lifting mechanism (1) and is arranged at the lower end of the lifting tube (6), two turnover plates (10) are arranged, the two turnover plates (10) have the same structure, the two turnover plates (10) are positioned at two sides of the fixed block (9), the upper ends of the two turnover plates (10) are rotatably connected with the fixed block (9), and the rollers (23) are clamped at the lower ends of the two turnover plates (10); the upper parts of the turnover plates (10) are provided with first through holes (13), the first pin shafts (11) sequentially penetrate through the first through holes (13) on the two turnover plates (10), and the first cotter pins (12) penetrate through pin holes of the first pin shafts (11) to fix the first pin shafts (11);
the fixed block (9) is of a square structure, the position, connected with the fixed block (9), of the overturning plate (10) is located at the left upper part of the fixed block (9), and the distance between the position, connected with the fixed block (9), of the overturning plate (10) and the right lower corner of the fixed block (9) is greater than the distance between the position, connected with the fixed block (9), of the overturning plate (10) and the first through hole (13) on the overturning plate (10).
3. The supporting wheel for the semitrailer according to claim 2, wherein a first groove (14) is formed in the lower end face of the fixed block (9), a second groove (15) is formed in the right end face of the fixed block (9), and the first groove (14) and the second groove (15) form a stepped structure at the right lower corner of the fixed block;
when the turnover plate (10) is in an unoccupied state, the roller (23) is positioned below the fixed block (9), the first pin shaft (11) is positioned in the first groove (14) of the fixed block (9), and the first groove (14) limits the turnover plate (10) so that the turnover plate (10) cannot turn around the fixed block (9);
when the turnover plate (10) is in a turnover state, the roller (23) is positioned on the right side of the fixed block (9), the first pin shaft (11) is positioned in the second groove (15) of the fixed block (9), and the second groove (15) limits the turnover plate (10) so that the turnover plate (10) cannot turn around the fixed block (9).
4. The supporting wheel for the semitrailer according to claim 2, further comprising a second pin shaft (16) and a second cotter pin (17), wherein the turnover plate (10) is connected with the fixed block (9) through the second pin shaft (16) and the second cotter pin (17), the fixed block (9) is provided with a fixed block through hole (24), the upper end of the turnover plate (10) is provided with a turnover plate upper through hole (18), the second pin shaft (16) penetrates through the turnover plate upper through hole (18) and the fixed block through hole (24) on the fixed block (9), and the second cotter pin (17) is inserted into the through hole at the tail of the second pin shaft (16) to fix the second pin shaft (16).
5. The supporting wheel for the semitrailer according to claim 2, further comprising a third pin shaft (20) and a third cotter pin (21), wherein the roller (23) is connected with the turnover plate (10) through the third pin shaft (20) and the third cotter pin (21), the lower end of the turnover plate (10) is provided with a turnover plate lower through hole (19), the third pin shaft (20) penetrates through the turnover plate lower through hole (19) and the axle center of the roller (23), and the third cotter pin (21) is inserted into the pin shaft through hole at the tail part of the third pin shaft (20) to fix the third pin shaft (20).
6. A supporting wheel for semitrailers according to claim 1, characterized in that five positioning through holes (22) are formed in the connecting and fixing plate (7) along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222883148.7U CN218986589U (en) | 2022-10-31 | 2022-10-31 | Semitrailer by supporting wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222883148.7U CN218986589U (en) | 2022-10-31 | 2022-10-31 | Semitrailer by supporting wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218986589U true CN218986589U (en) | 2023-05-09 |
Family
ID=86192242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222883148.7U Active CN218986589U (en) | 2022-10-31 | 2022-10-31 | Semitrailer by supporting wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218986589U (en) |
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2022
- 2022-10-31 CN CN202222883148.7U patent/CN218986589U/en active Active
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