CN215758261U - Novel H-shaped steel column mounting device for railway roadbed section - Google Patents
Novel H-shaped steel column mounting device for railway roadbed section Download PDFInfo
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- CN215758261U CN215758261U CN202023248218.9U CN202023248218U CN215758261U CN 215758261 U CN215758261 U CN 215758261U CN 202023248218 U CN202023248218 U CN 202023248218U CN 215758261 U CN215758261 U CN 215758261U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of auxiliary equipment for railway roadbed installation, and particularly relates to a novel H-shaped steel column installation device for a railway roadbed section. According to the utility model, the first movable plate, the first inclined rod, the flexible steel rope, the rotating rod and the first driving motor are matched, so that the problems that H-shaped steel columns with different sizes cannot be clamped and fixed and cannot be fixed after being moved to proper positions are solved.
Description
Technical Field
The utility model relates to the technical field of auxiliary equipment for railway roadbed installation, in particular to a device for installing an H-shaped steel column in a new railway roadbed section.
Background
The railway subgrade is a structure for bearing and transmitting the gravity of a track and the dynamic action of the train, is a foundation of the track and is an important building for ensuring the running of the train, the subgrade is a soil-rock structure and is positioned in various topographic, geomorphic, hydrological and climatic environments and sometimes suffers from various disasters, such as flood, debris flow, collapse, earthquake and the like, when the H-shaped steel column of the railway subgrade is installed, an installation device is required to be used, most of the traditional installation devices cannot move, and even if the traditional installation device can move, the installation device cannot move to a proper position and then is fixed, and meanwhile, most of the installation devices cannot clamp and fix the H-shaped steel columns with different sizes and cannot meet the use requirements.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a novel installation device for H-shaped steel columns of a roadbed section of a railway, which solves the problems that H-shaped steel columns with different sizes cannot be clamped and fixed and cannot be moved to proper positions and then fixed.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a new installation device for H-shaped steel columns of railway subgrade sections comprises a first U-shaped plate, wherein an L-shaped plate is fixedly installed on the first U-shaped plate, two first fixed rods are fixedly installed on the inner wall of the top of the L-shaped plate, a first moving rod is sleeved on the first fixed rods in a sliding mode, a first spring is fixedly installed between the top end of the first moving rod and the inner wall of the top of the L-shaped plate, the first spring is movably sleeved on the corresponding first fixed rods, the bottom ends of the two first moving rods are fixedly installed with a same second U-shaped plate, four second fixed rods are fixedly installed on the inner wall of the top of the second U-shaped plate, a second moving rod is sleeved on the second fixed rods in a sliding mode, a second spring is fixedly installed between the top end of the second moving rod and the inner wall of the top of the second U-shaped plate, the second spring is movably sleeved on the corresponding second fixed rods, and first rectangular grooves are formed in the inner walls of the left side and the right side of the second U-shaped plate, the first rectangular groove is connected with a first moving plate in a sliding manner, the bottom end of a second moving rod is fixedly connected with the upper surface of the first moving plate, a triangular plate is fixedly arranged on the upper surface of the first moving plate, the upper surface of the triangular plate is an inclined plane, a first screw rod is rotatably arranged on the inner wall of the right side of a second U-shaped plate, the right end of the first screw rod extends out of the second U-shaped plate and is fixedly provided with a knob, a third moving rod is sleeved on the first screw rod in a threaded manner, a ball is embedded at the left end of the third moving rod and is in rolling contact with the inclined plane, a square rod is fixedly arranged on the inner wall of the right side of the second U-shaped plate, an L-shaped rod is sleeved on the square rod in a sliding manner, the bottom end of the L-shaped rod is fixedly connected with the upper surface of the third moving rod, two first inclined rods are rotatably arranged on the lower surface of the first moving plate, and third fixing rods are fixedly arranged on the inner walls of the left side and the right side of the second U-shaped plate, the sliding sleeve is provided with a fourth moving rod on the third fixing rod, the end parts of the two fourth moving rods, which are close to each other, are fixedly provided with clamping plates, a third spring is fixedly arranged between the end parts, which are far away from each other, of the two fourth moving rods and the inner wall of the second U-shaped plate, the third spring is movably sleeved on the corresponding third fixing rod, and the end part of the first inclined rod is hinged to one side of the corresponding clamping plate.
As a preferred technical solution of the present invention, a second screw is rotatably mounted on an inner wall of a left side of the first U-shaped plate, a left end of the second screw extends out of the first U-shaped plate, a first driving motor is fixedly mounted on the left side of the first U-shaped plate, an output end of the first driving motor is fixedly connected to a left end of the second screw, a moving block is threadedly sleeved on the second screw, a positioning rod is fixedly mounted on the inner wall of the left side of the first U-shaped plate, the moving block is slidably connected to the positioning rod, a second inclined rod which is obliquely disposed is rotatably mounted on a lower surface of the moving block, second rectangular grooves are respectively formed on the inner walls of the left side and the right side of the first U-shaped plate, a second moving plate is slidably connected to the second rectangular grooves, an upper surface of the second moving plate is hinged to an end of the second inclined rod, and a plurality of rollers are rotatably mounted on a lower surface of the second moving plate.
As a preferable technical scheme of the utility model, an L-shaped cavity is formed in the L-shaped plate, a first fixed pulley and a second fixed pulley are rotatably mounted between the front inner wall and the rear inner wall of the L-shaped cavity, a flexible steel cable is fixedly mounted on the upper surface of the second U-shaped plate, a rotating rod is rotatably mounted between the left inner wall and the right inner wall of the L-shaped cavity, the left end of the rotating rod extends out of the L-shaped plate, a second driving motor is fixedly mounted on the left side of the L-shaped plate, the output end of the second driving motor is fixedly connected with the left end of the rotating rod, and the end of the flexible steel cable is fixedly connected with one side of the rotating rod by winding the top of the first fixed pulley and the top of the second fixed pulley.
According to a preferable technical scheme of the utility model, the left side of the moving block is provided with a thread groove and a square groove, the thread groove is in threaded connection with the second screw rod, and the inner wall of the square groove is in sliding connection with the outer side of the positioning rod.
As a preferred technical solution of the present invention, a threaded hole is formed at a right end of the third moving rod, and the threaded hole is in threaded connection with the first screw.
As a preferred technical scheme of the utility model, a through hole is formed in the inner wall of the left side of the L-shaped cavity, a bearing is fixedly arranged in the through hole, and the inner side of an inner ring of the bearing is welded with the outer side of the rotating rod.
(III) advantageous effects
Compared with the prior art, the utility model provides a new installation device for H-shaped steel columns of railway roadbed sections, which has the following beneficial effects:
1. this new line railway roadbed section H shaped steel post installation device, through first sloping pole, first movable block, first screw rod and splint cooperate, the knob drives the third carriage release lever through first screw rod and removes left, the third carriage release lever drives L shape pole and slides on the square bar, make the set-square drive first movable plate and slide on first rectangular channel, first movable plate drives the second carriage release lever and slides on the second dead lever, first movable plate drives the splint through first sloping pole and removes, splint drive the fourth carriage release lever and slide on the third dead lever, make two splint remove to the direction that is close to each other, reached at this moment and to add to hold fixedly to the H shaped steel post of different specifications.
2. This new line railway roadbed section H shaped steel post installation device cooperatees through flexible steel cable, second U-shaped board, dwang and second driving motor, and second driving motor twines flexible steel cable through the dwang, and flexible steel cable drives H shaped steel post through second U-shaped board and removes, and second U-shaped board drives first carriage release lever and slides on first dead lever and compress the first spring that corresponds, has reached the effect of portable H shaped steel post this moment.
3. This new line railway roadbed section H shaped steel post installation device cooperatees through second screw rod, second movable plate, second sloping pole and locating lever, and first driving motor drives the movable block through the second screw rod and moves right, and the movable block slides on the locating lever, and the movable block drives the second movable plate through the second sloping pole and slides on the second rectangular channel, and the second movable plate drives gyro wheel and ground contact, has reached the effect of portable first U-shaped board this moment.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the right oblique perspective structure of FIG. 1;
FIG. 3 is a schematic perspective view of a portion of the L-shaped plate of FIG. 1;
FIG. 4 is an enlarged view of part A of FIG. 1;
fig. 5 is an enlarged schematic view of part B of fig. 3.
In the figure: 1. a first U-shaped plate; 2. an L-shaped plate; 3. a first fixing lever; 4. a first movable bar; 5. a first spring; 6. a second U-shaped plate; 7. a second fixing bar; 8. a second movable bar; 9. a second spring; 10. A first moving plate; 11. a set square; 12. a first screw; 13. a third moving bar; 14. a square bar; 15. An L-shaped rod; 16. a first tilt lever; 17. a third fixing bar; 18. a fourth travel bar; 19. a third spring; 20. a splint; 21. a second screw; 22. a moving block; 23. positioning a rod; 24. a second tilt lever; 25. a second moving plate; 26. a first drive motor; 27. a flexible steel cord; 28. rotating the rod; 29. a second drive motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: a new line railway roadbed section H-shaped steel column installation device comprises a first U-shaped plate 1, an L-shaped plate 2 is fixedly installed on the first U-shaped plate 1, two first fixing rods 3 are fixedly installed on the inner wall of the top of the L-shaped plate 2, a first moving rod 4 is sleeved on the first fixing rods 3 in a sliding mode, first springs 5 are fixedly installed between the top ends of the first moving rods 4 and the inner wall of the top of the L-shaped plate 2, the first springs 5 are movably sleeved on the corresponding first fixing rods 3, the bottom ends of the two first moving rods 4 are fixedly installed with the same second U-shaped plate 6, four second fixing rods 7 are fixedly installed on the inner wall of the top of the second U-shaped plate 6, a second moving rod 8 is sleeved on the second fixing rods 7 in a sliding mode, a second spring 9 is fixedly installed between the top end of the second moving rod 8 and the inner wall of the top of the second U-shaped plate 6, the second spring 9 is movably sleeved on the corresponding second fixing rods 7, the inner walls of the left side and the right side of the second U-shaped plate 6 are respectively provided with a first rectangular groove, the first rectangular groove is connected with a first moving plate 10 in a sliding way, the bottom end of a second moving rod 8 is fixedly connected with the upper surface of the first moving plate 10, the upper surface of the first moving plate 10 is fixedly provided with a triangular plate 11, the upper surface of the triangular plate 11 is an inclined surface, the inner wall of the right side of the second U-shaped plate 6 is rotatably provided with a first screw 12, the right end of the first screw 12 extends out of the second U-shaped plate 6 and is fixedly provided with a knob, the first screw 12 is sleeved with a third moving rod 13 in a threaded way, the left end of the third moving rod 13 is embedded with a ball which is in rolling contact with the inclined surface, the inner wall of the right side of the second U-shaped plate 6 is fixedly provided with a square rod 14, the square rod 14 is sleeved with an L-shaped rod 15 in a sliding way, the bottom end of the L-shaped rod 15 is fixedly connected with the upper surface of the third moving rod 13, the lower surface of first movable plate 10 rotates and installs first tilting rod 16 that two slopes set up, equal fixed mounting has third dead lever 17 on the left side inner wall of second U-shaped plate 6 and the right side inner wall, sliding sleeve is equipped with fourth carriage bar 18 on the third dead lever 17, the equal fixed mounting of tip that two fourth carriage bars 18 are close to each other has splint 20, fixed mounting has third spring 19 between the tip that two fourth carriage bars 18 kept away from each other and the inner wall of second U-shaped plate 6, third spring 19 movable sleeve is established on the third dead lever 17 that corresponds, the tip of first tilting rod 16 is articulated mutually with one side of the splint 20 that corresponds.
In this embodiment, the first spring 5, the second spring 9, and the third spring 19 are provided, thereby achieving the effect of returning.
Specifically, a second screw 21 is rotatably mounted on the inner wall of the left side of the first U-shaped plate 1, the left end of the second screw 21 extends out of the first U-shaped plate 1, a first driving motor 26 is fixedly mounted on the left side of the first U-shaped plate 1, the output end of the first driving motor 26 is fixedly connected with the left end of the second screw 21, a moving block 22 is sleeved on the second screw 21 in a threaded manner, a positioning rod 23 is fixedly mounted on the inner wall of the left side of the first U-shaped plate 1, the moving block 22 is slidably connected with the positioning rod 23, a second inclined rod 24 which is obliquely arranged is rotatably mounted on the lower surface of the moving block 22, a second rectangular groove is formed in each of the inner wall of the left side of the first U-shaped plate 1 and the inner wall of the right side of the left side of the first U-shaped plate 1, a second moving plate 25 is slidably connected onto the second rectangular groove, the upper surface of the second moving plate 25 is hinged to the end of the second inclined rod 24, and a plurality of idler wheels are rotatably mounted on the lower surface of the second moving plate 25.
In this embodiment, the first U-shaped plate 1 can move by the arrangement of the rollers.
Specifically, the L-shaped cavity has been seted up on L-shaped plate 2, rotate between the front side inner wall of L-shaped cavity and the rear side inner wall and install first fixed pulley and second fixed pulley, the last fixed surface of second U-shaped plate 6 installs flexible steel cable 27, rotate between the left side inner wall of L-shaped cavity and the right side inner wall and install dwang 28, the left end of dwang 28 extends outside L-shaped plate 2, the left side fixed mounting of L-shaped plate 2 has second driving motor 29, the output of second driving motor 29 and the left end fixed connection of dwang 28, the top of first fixed pulley and second fixed pulley and one side fixed connection of dwang 28 are walked around to flexible steel cable 27's tip.
In this embodiment, an automation effect is achieved by the arrangement of the second driving motor 29.
Specifically, a thread groove and a square groove are formed in the left side of the moving block 22, the thread groove is in threaded connection with the second screw 21, and the inner wall of the square groove is in sliding connection with the outer side of the positioning rod 23.
In this embodiment, through thread groove and second screw 21 threaded connection, under the locking power of thread groove and second screw 21 self for can be fixed after moving movable block 22 moves suitable position, and the inner wall of square groove and the outside sliding connection of locating lever 23 make movable block 22 only move about, fix a position movable block 22, prevent the phenomenon of skew.
Specifically, a threaded hole is formed in the right end of the third moving rod 13, and the threaded hole is in threaded connection with the first screw 12.
In this embodiment, the threaded hole is in threaded connection with the first screw 12, so that the third moving rod 13 can be fixed after being moved to a proper position under the self-locking force of the threaded hole and the first screw 12.
Specifically, a through hole is formed in the inner wall of the left side of the L-shaped cavity, a bearing is fixedly mounted in the through hole, and the inner side of an inner ring of the bearing is welded to the outer side of the rotating rod 28.
In this embodiment, the inner side of the inner ring of the bearing is welded to the outer side of the rotating rod 28, and the bearing and the rotating rod 28 are fixed more firmly in a welding manner.
The working principle and the using process of the utility model are as follows: when the H-shaped steel columns of different specifications need to be held and fixed, the H-shaped steel columns are placed between the two clamping plates 20, then the knob is rotated, the knob drives the third movable rod 13 to move leftwards through the first screw 12, the third movable rod 13 drives the L-shaped rod 15 to slide on the square rod 14, the balls on the third movable rod 13 are in contact with the inclined surface on the triangular plate 11 and rotate to generate extrusion force, under the action of the extrusion force, the triangular plate 11 drives the first movable plate 10 to slide on the first rectangular groove, the first movable plate 10 drives the second movable rod 8 to slide on the second fixed rod 7 and stretch the corresponding second spring 9, the first movable plate 10 drives the corresponding clamping plate 20 to move through the first inclined rod 16, the clamping plates 20 drive the corresponding fourth movable rod 18 to slide on the third fixed rod 17 and stretch the third spring 19, so that the two clamping plates 20 move towards the direction of mutual approaching, at the moment, the H-shaped steel columns with different specifications can be clamped and fixed;
when the H-shaped steel column needs to be moved, a second driving motor 29 is started, the second driving motor 29 winds the flexible steel rope 27 through the rotating rod 28, the flexible steel rope 27 drives the H-shaped steel column to move through the second U-shaped plate 6, the second U-shaped plate 6 drives the first moving rod 4 to slide on the first fixing rod 3 and compress the corresponding first spring 5, and the effect of moving the H-shaped steel column is achieved at this time;
when the first U-shaped plate 1 needs to be moved, the first driving motor 26 is started, the first driving motor 26 drives the moving block 22 to move rightwards through the second screw 21, the moving block 22 slides on the positioning rod 23, the moving block 22 drives the second moving plate 25 to slide on the second rectangular groove through the second inclined rod 24, the second moving plate 25 drives the roller to contact with the ground, and the effect that the first U-shaped plate 1 can be moved is achieved at the moment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a new line railway roadbed section H shaped steel post installation device, includes first U-shaped board (1), its characterized in that: the device is characterized in that an L-shaped plate (2) is fixedly arranged on a first U-shaped plate (1), two first fixing rods (3) are fixedly arranged on the inner wall of the top of the L-shaped plate (2), a first moving rod (4) is sleeved on the first fixing rods (3) in a sliding manner, a first spring (5) is fixedly arranged between the top end of the first moving rod (4) and the inner wall of the top of the L-shaped plate (2), the first spring (5) is movably sleeved on the corresponding first fixing rods (3), the bottom ends of the two first moving rods (4) are fixedly provided with the same second U-shaped plate (6), four second fixing rods (7) are fixedly arranged on the inner wall of the top of the second U-shaped plate (6), a second moving rod (8) is sleeved on the second fixing rods (7) in a sliding manner, and a second spring (9) is fixedly arranged between the top end of the second moving rod (8) and the inner wall of the top of the second U-shaped plate (6), a second spring (9) is movably sleeved on a corresponding second fixed rod (7), first rectangular grooves are formed in the inner walls of the left side and the right side of a second U-shaped plate (6), a first movable plate (10) is connected to the first rectangular grooves in a sliding mode, the bottom end of a second movable rod (8) is fixedly connected with the upper surface of the first movable plate (10), a triangular plate (11) is fixedly installed on the upper surface of the first movable plate (10), the upper surface of the triangular plate (11) is an inclined plane, a first screw rod (12) is rotatably installed on the inner wall of the right side of the second U-shaped plate (6), the right end of the first screw rod (12) extends out of the second U-shaped plate (6) and is fixedly provided with a knob, a third movable rod (13) is sleeved on the first screw rod (12) in a threaded mode, a ball is embedded at the left end of the third movable rod (13) and is in rolling contact with the inclined plane, a square rod (14) is fixedly installed on the inner wall of the right side of the second U-shaped plate (6), sliding sleeve is equipped with L shape pole (15) on square bar (14), the bottom of L shape pole (15) is connected with the last fixed surface of third carriage release lever (13), the lower surface of first movable plate (10) is rotated and is installed first sloping pole (16) that two slopes set up, equal fixed mounting has third dead lever (17) on the left side inner wall of second U-shaped plate (6) and the right side inner wall, sliding sleeve is equipped with fourth carriage release lever (18) on third dead lever (17), the equal fixed mounting of tip that two fourth carriage release levers (18) are close to each other has splint (20), fixed mounting has third spring (19) between the tip that two fourth carriage release levers (18) kept away from each other and the inner wall of second U-shaped plate (6), third spring (19) movable sleeve is established on corresponding third dead lever (17), the tip of first sloping lever (16) is articulated mutually with one side of the splint (20) that correspond.
2. The new line railway roadbed section H-shaped steel column mounting device as claimed in claim 1, wherein: a second screw rod (21) is rotatably mounted on the inner wall of the left side of the first U-shaped plate (1), the left end of the second screw rod (21) extends out of the first U-shaped plate (1), a first driving motor (26) is fixedly mounted on the left side of the first U-shaped plate (1), the output end of the first driving motor (26) is fixedly connected with the left end of the second screw rod (21), a moving block (22) is sleeved on the second screw rod (21) in a threaded manner, a positioning rod (23) is fixedly mounted on the inner wall of the left side of the first U-shaped plate (1), the moving block (22) is in sliding connection with the positioning rod (23), a second inclined rod (24) which is obliquely arranged is rotatably mounted on the lower surface of the moving block (22), second rectangular grooves are respectively formed in the inner wall of the left side and the inner wall of the right side of the first U-shaped plate (1), a second moving plate (25) is slidably connected to the second rectangular grooves, and the upper surface of the second moving plate (25) is hinged to the end portion of the second inclined rod (24), a plurality of rollers are rotatably mounted on the lower surface of the second moving plate (25).
3. The new line railway roadbed section H-shaped steel column mounting device as claimed in claim 1, wherein: seted up L shape cavity on L shaped plate (2), rotate between the front side inner wall of L shape cavity and the rear side inner wall and install first fixed pulley and second fixed pulley, the last fixed surface of second U shaped plate (6) installs flexible steel cable (27), rotate between the left side inner wall of L shape cavity and the right side inner wall and install dwang (28), the left end of dwang (28) extends to outside L shaped plate (2), the left side fixed mounting of L shaped plate (2) has second driving motor (29), the output of second driving motor (29) and the left end fixed connection of dwang (28), the tip of flexible steel cable (27) is around the top of first fixed pulley and the top of second fixed pulley and one side fixed connection of dwang (28).
4. The new line railway roadbed section H-shaped steel column mounting device as claimed in claim 2, wherein: a thread groove and a square groove are formed in the left side of the moving block (22), the thread groove is in threaded connection with the second screw (21), and the inner wall of the square groove is in sliding connection with the outer side of the positioning rod (23).
5. The new line railway roadbed section H-shaped steel column mounting device as claimed in claim 1, wherein: and a threaded hole is formed in the right end of the third moving rod (13), and the threaded hole is in threaded connection with the first screw (12).
6. The new line railway roadbed section H-shaped steel column mounting device as claimed in claim 3, wherein: a through hole is formed in the inner wall of the left side of the L-shaped cavity, a bearing is fixedly mounted in the through hole, and the inner side of an inner ring of the bearing is welded with the outer side of the rotating rod (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023248218.9U CN215758261U (en) | 2020-12-28 | 2020-12-28 | Novel H-shaped steel column mounting device for railway roadbed section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023248218.9U CN215758261U (en) | 2020-12-28 | 2020-12-28 | Novel H-shaped steel column mounting device for railway roadbed section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215758261U true CN215758261U (en) | 2022-02-08 |
Family
ID=80070952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023248218.9U Expired - Fee Related CN215758261U (en) | 2020-12-28 | 2020-12-28 | Novel H-shaped steel column mounting device for railway roadbed section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215758261U (en) |
-
2020
- 2020-12-28 CN CN202023248218.9U patent/CN215758261U/en not_active Expired - Fee Related
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Granted publication date: 20220208 |