CN219798674U - Universal test installation platform for switch machine - Google Patents
Universal test installation platform for switch machine Download PDFInfo
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- CN219798674U CN219798674U CN202320010343.0U CN202320010343U CN219798674U CN 219798674 U CN219798674 U CN 219798674U CN 202320010343 U CN202320010343 U CN 202320010343U CN 219798674 U CN219798674 U CN 219798674U
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000009434 installation Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012812 general test Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to a general test installation platform of a switch machine, which is characterized in that: comprising the following steps: the lifting platform foundation frame (1), the guide bracket assembly (2), the linkage lifting platform assembly (3) and the switch machine mounting plate assembly (4), wherein the lifting platform foundation frame (1), the guide bracket assembly (2) and the switch machine mounting plate assembly (4) are mutually matched frame structures, the platform foundation frame (1) is a foundation and a support of the whole system, four bearing casters (6) are fixed at the bottom of the platform foundation frame, the casters (6) are provided with adjustable supports, and can fall down or retract supports of the casters according to requirements, so that the carrying and the placing of the whole structure are convenient; so as to select the center height of the action bars of the switch machines in different types according to the installation surface, automatically adjust the height of the installation surface, ensure that the action bars of the switch machines in each type are connected with the interfaces of the hydraulic load or the heavy hammer load on the same horizontal plane, and ensure that the switch machines move stably, have no blockage and are accurate in the test process.
Description
Technical Field
The utility model belongs to the technical field of railway traffic signals, and particularly relates to a universal test mounting platform of a point switch.
Background
The reliability of the railway switch machine is critical to ensuring the driving safety as key equipment for switch switching, and the characteristics of the switch machine need to be tested according to corresponding standards in the process of leaving factories and field maintenance, so the importance of the equipment switch machine test board for switch machine test is self-evident.
Besides, the installation platform of the switch machine in the testing process is used as a plane for fixing and supporting the switch machine, which is an indispensable ring for scientifically and effectively completing the testing of various performance indexes of the switch machine. The main flow testing equipment of the existing point machine mainly adjusts the central height of different types of point machines in a mode of replacing a point machine mounting plate or adding a backing plate, and because the mounting plate is large in area and mass, the point machine is time-consuming and labor-consuming to move manually and needs to be disassembled; in order to avoid the operation mode, even if a special point machine test table is arranged for a point machine of a specific model, other characteristic indexes are the same, and the special test table is specially manufactured only by different installation modes, so that great economic waste is caused.
Therefore, it is important to find a convenient, efficient and wide-application range test and installation platform, and the utility model provides a universal test board to solve the problem that the installation board cannot be applied when the prior art aims at the switch machine types with high centers of different action bars.
Disclosure of Invention
The utility model aims to provide a general test mounting platform of a point switch, so that the central height of the action bars of the point switch of different types can be selected according to mounting surfaces, the height of a mounting plane can be automatically adjusted, the action bars of the point switches of each type can be ensured to be connected with interfaces of hydraulic loads or heavy weights on the same horizontal plane, the point switch can move stably and has no blocking in the test process, and the test result is accurate.
The utility model aims to realize the following, and provides a general test installation platform of a switch machine, which comprises the following components: the lifting platform foundation frame, the guide bracket assembly and the switch machine mounting plate assembly are mutually matched frame structures, the platform foundation frame is a foundation and a support of the whole system, four bearing casters are fixed at the bottom of the platform foundation frame, the casters are provided with adjustable supports, and the casters can fall down or retract the supports according to the needs, so that the whole system is convenient to carry and place; the guide bracket component is rigidly connected with the base frame to provide a fixed foundation for the switch machine mounting plate component and plays a certain guide role in the lifting process of the switch machine mounting plate; the linkage lifting platform assembly is used for lifting the mounting platform; the linkage lifting platform assembly is connected with the switch machine mounting plate assembly through a flange connecting plate; the switch machine mounting plate assembly is connected to the guide bracket assembly, so that the mounting plate at the upper end of the switch machine mounting plate assembly is positioned at the top of the test mounting platform, and various switch machines to be tested are fixed through the mounting holes of the switch machine mounting plate; the transverse adjuster is arranged on the guide bracket assembly, the position of the mounting plate assembly of the switch machine can be subjected to transverse fine adjustment by adjusting the transverse adjuster, and the clamping resistance of each part and component of the placing mechanism due to 'misalignment' in the lifting process is realized.
The lifting platform foundation frame comprises: the lifting system comprises a frame foundation, a lifting system installation block and a lifting system installation cushion block; the frame foundation is provided with four upright posts and two layers of square frames, the two layers of square frames are enclosed into a square shape by the four upright posts, and four feet are reserved at the bottom; the middle of the square frame is fixed into a whole by a cross frame, four corners of the square frame are lifting system installation cushion blocks, and lifting system installation blocks which are distributed at intervals are arranged on longitudinal strips of the cross frame.
The guide bracket component is of a table body structure without a table top, and comprises: the four corner-shaped legs are connected with a second connecting plate between the four corner-shaped legs, the four corner-shaped legs are provided with connecting mounting holes, and the four second connecting plates and the four corner-shaped legs are connected into a hollow frame body.
The linkage lift platform subassembly includes: the lifting machine comprises lifting machines, direction converters, couplers, shock absorbers, motors, long connecting rods, flanges and flange connecting plates, wherein the lifting machines are respectively located at the positions of four installation cushion blocks, the flange and the flange connecting plates are fixed at the top of each lifting machine, the front end and the rear end of each lifting machine are connected with one direction converter in the middle through the long connecting rods to form a hinged structure, the direction converters are connected with the left long connecting rod and the right long connecting rod and are in transition with the direction converters through the couplers and the shock absorbers, the direction converters in the middle of the front end and the rear end are simultaneously connected with the middle direction converters through the short connecting rods, and the direction converters are connected with the motors in the right horizontal direction through the middle couplers.
The lifting legs of the lifter are of square rod structures, and are inserted into the square grooves in the middle of the installation cushion blocks to be fixedly connected with the platform foundation frame.
The linkage lifting platform assembly comprises an interface for manually controlling the lifting platform to perform lifting motion.
The switch machine mounting plate assembly includes: the point machine mounting plate, point machine mounting plate guide post, location pinhole, guide way, rings and the reinforcing plate that is used for strengthening mounting plate intensity, point machine mounting plate are equipped with the mounting hole that is suitable for various point machine tests, and 4 point machine mounting plate guide posts carry out welding position with four feet of mounting plate, are equipped with the location pinhole at point machine mounting plate guide post, location pinhole is used for the location when point machine mounting plate subassembly tests.
A guide groove matched with the transverse adjuster component is formed in the switch machine mounting plate guide post; lifting rings for lifting are designed on 4 feet at the upper end of a mounting plate of the switch machine mounting plate assembly, and a reinforcing plate for reinforcing the strength of the mounting plate is arranged at the lower end of the mounting plate.
The lateral adjuster includes: the mounting plate, the positioning column, the adjusting bolt, the blocking plate and the pressing plate are connected through fasteners; the head of the adjusting bolt is designed into a hexagon and is provided with a notch with a straight slot for adjustment, the mounting plate is of a step structure, the upper step is provided with 4 mounting holes, one end of the square slot is arranged in each of the 4 mounting holes, the square head of the positioning column is provided with a mounting hole, and the adjusting bolt is connected with the square head mounting hole of the positioning column through the blocking plate and the pressing plate.
The utility model can be suitable for testing various characteristics of various switch machines, can finish lifting of an installation plane in an automatic or manual mode, is suitable for testing more types of switch machines, can also improve the efficiency of testing the switch machines, meets the testing requirements of various switch machines to be tested, and has wide application range and wide application prospect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a foundation frame structure of a lifting platform;
FIG. 3 is a schematic view of a guide bracket assembly;
FIG. 4 is a schematic diagram of a ganged lift platform assembly;
FIG. 5 is a diagram of the configuration of the flange and flange mounting plate;
FIG. 6 is a block diagram of a switch machine mounting plate assembly;
FIG. 7 is a block diagram of a lateral adjuster assembly;
FIG. 8 is a block diagram of a lateral adjuster end plate;
FIG. 9 is a block diagram of a lateral adjuster positioning column;
FIG. 10 is a block diagram of a lateral adjuster adjustment bolt;
FIG. 11 is a block diagram of a lateral adjuster mounting plate.
In the figure: 1-lifting a platform base frame; 101-a frame foundation; 102-a lifting system installation block; 103-installing a cushion block of the lifting system; 2-a guide bracket set; 3-linkage lifting platform components; 31-an elevator; a 32-direction converter; 33-coupling; 34-a shock absorber; 35-an electric motor; 36-long connecting rod; 37-manual input shaft; 38-a flange; 39-flange connection plates; 4-switch machine mounting plate assembly; 41-switch mounting plate; 42-a switch machine mounting plate guide post; 43-locating pin holes;
45-hanging rings; 46-reinforcing ribs; 5-a transversal adjuster; 51-a regulator mounting plate; 52-positioning columns; 53-adjusting bolts; 54-end plates; 55-pressing plate; 6-casters; 7-a drawer; 8-an electrical operating button; 9-locating pins; 10. a hanging ring; 11. a first connection plate; 12-web fasteners.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and detailed description, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 1, the present utility model relates to a universal test mounting platform for a switch machine, comprising: the lifting platform foundation frame 1, the guide bracket assembly 2, the linkage lifting platform assembly 3 and the switch machine mounting plate assembly 4 are used for adjusting the switch machine mounting plate assembly 4, the lifting platform foundation frame 1, the guide bracket assembly 2 and the switch machine mounting plate assembly 4 are mutually matched frame structures, the platform foundation frame 1 is the foundation and the support of the whole system, four bearing casters 6 are fixed at the bottom of the platform foundation frame, the casters 6 are provided with adjustable supports, and can fall down or retract supports of the casters according to the needs, so that the overall structure is convenient to carry and place; the guide bracket component 2 is rigidly connected with the base frame 1 to provide a fixed foundation for the switch machine mounting plate component 4 and plays a certain guide role in the lifting process of the switch machine mounting plate 41; the linkage lifting platform assembly 3 is used for lifting the mounting platform.
As shown in fig. 2, the lifting platform base frame 1 includes: a frame foundation 101, a lifting system mounting block 102, and a lifting system mounting block 103; the frame foundation 101 is provided with four upright posts and two layers of square frames, the two layers of square frames are enclosed into a square shape by the four upright posts, and four feet are reserved at the bottom; the middle of the square frame is fixed into a whole by a cross frame, four corners of the square frame are provided with lifting system installation cushion blocks 103, and lifting system installation blocks 102 are distributed at intervals on the longitudinal strips of the cross frame; the first connecting plate 11 is fixed and reinforced by the connecting plate fastener 12 at the front and rear of the right end of the frame foundation 101.
As shown in fig. 3, the guiding bracket assembly 2 is a table body structure without a table top, and includes: four corner-shaped legs 22, a second connecting plate 23 connected between the four corner-shaped legs 22, connecting mounting holes 21 on the four corner-shaped legs 22, and four second connecting plates 23 and the four corner-shaped legs 22 are connected into a hollow frame body.
As shown in fig. 4, the linked lift platform assembly 3 includes: the elevator 31 is respectively positioned at four positions of the installation cushion blocks 13, the flange 38 and the flange connecting plate 39 are fixed at the top of each elevator 31, the front end and the rear end of the elevator 31 are connected with one middle direction converter 32 through the long connecting rod 36 to form a hinged structure, the direction converters 32 are connected with the left long connecting rod 36 and the right long connecting rod 36 to be in transition with the direction converters 32 through the couplings 33 and the dampers 34, the direction converters 32 in the middle of the front end and the rear end are simultaneously connected with the middle direction converters through the short connecting rods, and the direction converters are connected with the motors 35 in the right horizontal direction through the middle couplings.
The lifting legs of the lifter 31 are of square rod structures, and are inserted into the square grooves in the middle of the installation cushion blocks 13 to be connected and fixed with the platform foundation frame 1.
The linkage lifting platform assembly 3 is reserved with an interface 37 for manually controlling the lifting platform to perform lifting movement, so that the linkage lifting platform assembly 3 has good synchronism in movement, and smooth non-blocking in the lifting process of the switch machine mounting plate assembly 4 is ensured.
The linkage lifting platform assembly 3 is connected with the switch machine mounting plate assembly 4 through a flange connecting plate 39.
As shown in fig. 5, a structural connection diagram of the flange 38 and the flange connection plate 39 is given, the flange connection plate 39 has 4 mounting holes, and the flange 38 is connected in the middle of the flange connection plate 39.
As shown in fig. 6, the switch machine mounting plate assembly 4 includes: the point machine mounting plate 41, point machine mounting plate guide post 42, location pinhole 43, guide slot 44, rings 45 and be used for strengthening the reinforcing plate 46 of mounting plate intensity, point machine mounting plate 41 is equipped with the mounting hole that is suitable for various point machine tests, and four feet of 4 point machine mounting plate guide posts 42 and regulator mounting plate 51 weld the location, are equipped with location pinhole 43 at point machine mounting plate guide post 42, location pinhole 43 is used for the location when point machine mounting plate assembly 4 tests.
The switch machine mounting plate guide post 42 is provided with a guide groove 44 matched with the transverse adjuster 5, the upper end 4 feet of the adjuster mounting plate 51 of the switch machine mounting plate assembly 4 are provided with hanging rings 45 for hanging, and the lower end of the adjuster mounting plate 51 is provided with a reinforcing plate 46 for reinforcing the strength of the mounting plate.
The switch machine mounting plate assembly 4 is connected to the guide bracket assembly 2, so that the switch machine mounting plate 41 at the upper end of the switch machine mounting plate assembly is positioned at the top of the test mounting platform, and various switch machines to be tested are fixed through the mounting holes of the switch machine mounting plate 41.
As shown in fig. 7, the lateral adjuster 5 includes: the regulator mounting plate 51, the positioning column 52, the adjusting bolt 53, the blocking plate 54, and the pressing plate 55 are connected by fasteners.
As shown in fig. 10, a schematic structural view of the adjusting bolt 53 is given; the head of the adjusting bolt 53 is designed into a hexagon and is provided with a notch with a straight slot for adjusting use.
As shown in fig. 11, the regulator mounting plate 51 has a stepped structure, the upper step has 4 mounting holes, the inside of the 4 mounting holes has a square groove with one opening, the positioning column 52 has mounting holes in the square head of the positioning column 52 as shown in fig. 9, and the adjusting bolt 53 is connected with the square head mounting hole of the positioning column 52 through the blocking plate 54 and the pressing plate 55 as shown in fig. 8.
The transverse adjuster 5 is arranged on the guide bracket assembly 2, the position of the switch machine mounting plate assembly 4 can be subjected to transverse fine adjustment by adjusting the transverse adjuster 5, and the clamping resistance of each part and component of the placement mechanism caused by 'misalignment' in the lifting process is realized.
The casters 6 are used for supporting the lifting mounting table and make the handling process more convenient.
The drawer 7 is used for placing test instruments, meters and tools.
The manually operated electric button 8 is used for manually adjusting the lifting system to lift and for fine adjustment or emergency adjustment of the system actions.
The locating pin 9 and the frame foundation 101 are used for connecting and locating the parts, and the hanging ring 10 is used when the equipment is hoisted.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
In summary, in order to solve the problem that the prior art is applicable to the existing point switch with different center heights of the operating rod installed on the point switch test board, the utility model adopts a mode of automatically controlling the lifting of the installation table board to solve the problem; the novel lifting function can be realized by three modes of automatic software setting, manual operation of an electric button, hand operation and the like, so that the product testing efficiency is improved, and the running reliability of the product is improved; the utility model can be used by being configured with various test loads and has wide application. The mounting structure is flexible, the operation is convenient, the testing requirements of various types of switch machines are met, the application range is wide, and the application prospect is wide.
Claims (9)
1. A general test mounting platform of a switch machine is characterized in that: comprising the following steps: the lifting platform foundation frame (1), the guide bracket assembly (2), the linkage lifting platform assembly (3), the switch machine mounting plate assembly (4) and the switch machine mounting plate assembly (4) are mutually matched frame structures, the platform foundation frame (1) is a foundation and a support of the whole system, four bearing casters (6) are fixed at the bottom, the casters (6) are provided with adjustable supports, and can fall down or retract supports of the casters according to requirements, so that the carrying and the placement of the whole structure are convenient; the guide bracket component (2) is rigidly connected with the base frame (1) to provide a fixed foundation for the switch machine mounting plate component (4) and plays a role in guiding the lifting process of the switch machine mounting plate; the linkage lifting platform assembly (3) is used for lifting the mounting platform; the linkage lifting platform assembly (3) is connected with the switch machine mounting plate assembly (4) through a flange connecting plate (39); the switch machine mounting plate assembly (4) is connected to the guide bracket assembly (2), so that the switch machine mounting plate (41) at the upper end of the switch machine mounting plate assembly is positioned at the top of the test mounting platform, and various switch machines to be tested are fixed through mounting holes of the switch machine mounting plate (41); the transverse adjuster (5) is arranged on the guide bracket component (2), and the position of the switch machine mounting plate component can be subjected to transverse fine adjustment by adjusting the transverse adjuster (5).
2. The universal test mounting platform for a switch machine of claim 1, wherein: the lifting platform foundation frame (1) comprises: a frame foundation (101), a lifting system mounting block (102) and a lifting system mounting cushion block (103); the frame foundation (101) is provided with four upright posts and two layers of square frames, the two layers of square frames are enclosed into a square shape through the four upright posts, and four feet are reserved at the bottom; the middle of the square frame is fixed into a whole by a cross frame, four corners of the square frame are provided with lifting system installation cushion blocks (103), and lifting system installation blocks (102) are distributed at intervals on the longitudinal strips of the cross frame; the frame foundation (101) is characterized in that a front first connecting plate (11) and a rear first connecting plate (11) are arranged at the right end of the frame foundation, and the first connecting plate (11) is fixedly reinforced through a connecting plate fastener (12).
3. The universal test mounting platform for a switch machine of claim 1, wherein: the guide bracket component (2) is of a table body structure without a table top, and comprises: the four corner-shaped legs (22) are connected between the four corner-shaped legs (22) and provided with second connecting plates (23), the four corner-shaped legs (22) are provided with connecting mounting holes (21), and the four second connecting plates (23) and the four corner-shaped legs (22) are connected into a hollow frame body.
4. The universal test mounting platform for a switch machine of claim 1, wherein: the linkage lifting platform assembly (3) comprises: the elevator comprises elevators (31), direction converters (32), couplers (33), shock absorbers (34), motors (35), long connecting rods (36), flanges (38) and flange connecting plates (39), wherein the elevators (31) are respectively located at four installation cushion blocks (13), the flanges (38) and the flange connecting plates (39) are fixed to the tops of the elevators (31), the front end and the rear end of each elevator (31) are connected with one direction converter (32) in the middle through the long connecting rods (36) to form a hinged structure, the direction converters (32) are connected with the left long connecting rod and the right long connecting rod (36) and the direction converters (32) to be in transition through the couplers (33) and the shock absorbers (39), the direction converters (32) in the middle of the front end and the rear end are simultaneously connected with the middle direction converters through the short connecting rods, and the direction converters are connected with the motors (35) in the right horizontal direction through middle couplers.
5. The universal test and installation platform for a switch machine of claim 4, wherein: the lifting legs of the lifter (31) are of square rod structures, and are inserted into the square grooves in the middle of the installation cushion blocks (13) to be connected and fixed with the platform foundation frame (1).
6. The universal test and installation platform for a switch machine of claim 4, wherein: the linkage lifting platform assembly (3) comprises an interface (37) for manually controlling the lifting platform to perform lifting movement.
7. The universal test and installation platform for a switch machine of claim 4, wherein: the switch machine mounting plate assembly (4) comprises: the automatic point machine comprises a point machine mounting plate (41), point machine mounting plate guide posts (42), positioning pin holes (43), guide grooves (44), hanging rings (45) and reinforcing plates (46) for reinforcing the strength of the mounting plate, wherein the point machine mounting plate (41) is provided with mounting holes suitable for testing various point machines, the four feet of the point machine mounting plate (41) are welded and positioned with the 4 point machine mounting plate guide posts (42), the point machine mounting plate guide posts (42) are provided with positioning pin holes (43), and the positioning pin holes (43) are used for positioning when the point machine mounting plate assembly (4) is tested.
8. The universal test and installation platform for a switch machine of claim 7, wherein: a guide groove (44) matched with the transverse adjuster (5) is arranged on the switch machine mounting plate guide post (42); hanging rings (45) for hanging are designed on 4 feet at the upper end of a switch machine mounting plate (41) of the switch machine mounting plate assembly (4), and a reinforcing plate (46) for reinforcing the strength of the mounting plate is arranged at the lower end of the switch machine mounting plate (41).
9. The universal test and installation platform for a switch machine of claim 7, wherein: the transversal adjuster (5) comprises: the adjuster mounting plate (51), the positioning column (52), the adjusting bolt (53), the plugging plate (54) and the pressing plate (55) are connected through fasteners; the head of the adjusting bolt (53) is designed into a hexagon and is provided with a notch with a straight groove for adjustment, the adjuster mounting plate (51) is of a step structure, the upper step is provided with 4 mounting holes, one end of the square groove is opened in the 4 mounting holes, the square head of the positioning column (52) is provided with a mounting hole, and the adjusting bolt (53) is connected with the square head mounting hole of the positioning column (52) through the plugging plate (54) and the pressing plate (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320010343.0U CN219798674U (en) | 2023-01-04 | 2023-01-04 | Universal test installation platform for switch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320010343.0U CN219798674U (en) | 2023-01-04 | 2023-01-04 | Universal test installation platform for switch machine |
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| Publication Number | Publication Date |
|---|---|
| CN219798674U true CN219798674U (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320010343.0U Active CN219798674U (en) | 2023-01-04 | 2023-01-04 | Universal test installation platform for switch machine |
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| CN (1) | CN219798674U (en) |
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2023
- 2023-01-04 CN CN202320010343.0U patent/CN219798674U/en active Active
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