CN221078300U - Electric power protection cap pulling force check out test set - Google Patents
Electric power protection cap pulling force check out test set Download PDFInfo
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- CN221078300U CN221078300U CN202322846441.0U CN202322846441U CN221078300U CN 221078300 U CN221078300 U CN 221078300U CN 202322846441 U CN202322846441 U CN 202322846441U CN 221078300 U CN221078300 U CN 221078300U
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- 238000012360 testing method Methods 0.000 title abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Helmets And Other Head Coverings (AREA)
Abstract
The utility model relates to the technical field of power protection cap detection, in particular to power protection cap tension detection equipment which can detect the tension of a power protection cap, improve the practicability of the equipment and facilitate the test; comprises a base; still include two risers, placing mechanism, chin area fixed establishment, stop gear and support adjustment mechanism, two risers are fixed mounting respectively about the top of base both ends, and placing mechanism installs between two risers, placing mechanism includes two mounting panels, two electric telescopic links, two link, two crossbeams, two U-shaped link, supports the crossbeams, head mould, pressure sensor, mounting bar and controller, and chin area fixed establishment installs on the top of base, and is located placing mechanism's below, and stop gear installs on placing mechanism, carries out spacing fixedly to the safety helmet, supports adjustment mechanism and installs in the bottom four corners department of base, supports equipment.
Description
Technical Field
The utility model relates to the technical field of power protection cap detection, in particular to power protection cap tension detection equipment.
Background
In the age of rapid economic development nowadays, the electricity consumption of industry, traffic and families is gradually increased, and a power supply system is required to be continuously input and perfected so as to ensure the stable development of society and economy. And the investment and perfection require a great deal of manpower and material resources. In the process of electricity consumption, a large number of tools are used for production service, and the standardization and the safety of the tools must be ensured sufficiently to ensure the construction safety of workers. Helmets are one of the important tools of electric safety appliances, are widely used in actual production, and are particularly important in testing helmets. Through retrieving, prior art bulletin number CN210626233U puts forward a safety helmet performance detection device, which comprises a frame, a pedestal, a support frame, the safety helmet mount, the top frame, the support leg, hammering thing holding frame, the holding piece, the through-hole, the safety helmet mount can be fixed the safety helmet, when the hammering thing holding frame is worn to locate by the locating part, hammering thing can hold in hammering thing holding frame under the blocking effect of locating part, when the locating part pulls out, hammering thing free fall hits on the safety helmet, judge whether the anti-hitting performance of safety helmet is qualified through looking over the state of safety helmet. But it can only detect the performance of fighting to the helmet, and the chin area is fixed effect on the chin when the power protection cap is used, and the tensile strength of chin area can exert an influence to the stability of wearing of power protection cap, can not detect the pulling force of power protection cap among the prior art, inconvenient use.
Disclosure of utility model
In order to solve the technical problems, the utility model provides the tension detection equipment for the electric power protection cap, which can detect the tension of the electric power protection cap, improves the practicability of the equipment and is convenient for testing.
The utility model relates to a tension detection device for an electric power protective cap, which comprises a base; the safety helmet comprises a base, and is characterized by further comprising two vertical plates, a placing mechanism, a chin strap fixing mechanism, a limiting mechanism and a supporting and adjusting mechanism, wherein the two vertical plates are respectively and fixedly arranged at the left end and the right end of the top of the base; when the safety helmet is used, the safety helmet is placed on the placement mechanism, the safety helmet is limited through the limiting mechanism, the position of the safety helmet is prevented from being deviated, the chin of a wearer is simulated through the chin strap fixing mechanism, the chin strap is enabled to limit and fix the safety helmet, the tension of the chin strap and the safety helmet is tested, the safety helmet can be stably placed through the supporting and adjusting mechanism, and the safety helmet is convenient to test.
Preferably, the placement mechanism comprises two mounting plates, two electric telescopic rods, two connecting frames, two transverse plates, two U-shaped connecting frames, a supporting transverse plate, a head die, a pressure sensor, a mounting rod and a controller, wherein the two mounting plates are fixedly arranged on the inner wall of the vertical plate; when the electric safety helmet is tested, the electric safety helmet is placed on the head die, the chin belt is fixed, the two electric telescopic rods are started to push the connecting frame to move upwards, the supporting transverse plate is driven to move upwards through the tension sensor and the U-shaped connecting frame, the tension of the chin belt and the electric safety helmet is detected through the pressure sensor, data are transmitted to the controller for data processing, the testing result is displayed through the display screen, and the intuitiveness of the testing result is improved.
Preferably, the limiting mechanism comprises a plurality of telescopic rods, two clamping blocks and a plurality of springs, wherein the telescopic rods are respectively and fixedly arranged at one ends of the two transverse plates opposite to each other, the clamping blocks are fixedly arranged at the other ends of the telescopic rods, the lower parts of the clamping blocks are provided with arc-shaped grooves, the springs are respectively sleeved on the outer walls of the telescopic rods, one ends of the springs are connected with the transverse plates, and the other ends of the springs are connected with the clamping blocks; the two clamping blocks are pushed to be close to each other through the spring, so that the arc-shaped groove at the bottom of the clamping block is tightly contacted and propped against the upper part of the electric power safety helmet, and the safety helmet is limited and fixed, so that the position of the safety helmet is prevented from being deviated.
Preferably, the chin strap fixing mechanism comprises four tension sensors, four pull rods, an H-shaped fixing frame and a U-shaped fixing block, wherein the four tension sensors are respectively and fixedly arranged in the middle of the top end of the base, the tension sensors are electrically connected with the controller, the pull rods are arranged at the top ends of the tension sensors, the H-shaped fixing frame is fixedly arranged at the top ends of the four pull rods, and the U-shaped fixing block is fixedly arranged in the middle of the bottom end of the H-shaped fixing frame; when the jaw belt is used, the jaw belt is tied on the U-shaped fixing block, the U-shaped fixing block simulates the chin of a wearer, so that the jaw belt is stressed uniformly, the tensile force is detected through the four tension sensors, the test result is transmitted to the controller, and the test accuracy is improved.
Preferably, the device also comprises a sliding rod, a bidirectional screw rod and two limiting sliding plates, wherein the sliding rod is fixedly arranged at the front end and the rear end of the H-shaped fixing frame at the left side of the upper part of the U-shaped fixing block, the bidirectional screw rod is rotatably arranged at the front end and the rear end of the H-shaped fixing frame at the right side of the upper part of the U-shaped fixing block, the front end of the bidirectional screw rod penetrates through the H-shaped fixing frame to be provided with a rotating handle, the limiting sliding plates are slidably arranged on the outer wall of the U-shaped fixing block, the left ends of the two limiting sliding plates are slidably arranged on the sliding rod, and the right ends of the two limiting sliding plates are symmetrically and spirally arranged at the front end and the rear end of the bidirectional screw rod; the handle is rotated to drive the bidirectional screw rod to rotate, so that the two limiting sliding plates are driven to be close to each other, the jaw belt is limited, the jaw belt is prevented from being deviated, the test result is inaccurate, and the device can be suitable for the jaw belts with different widths.
Preferably, the device further comprises a top plate, an electromagnet, a sucker, an iron hammer and a sensor, wherein the top plate is fixedly arranged at the top end of the vertical plate, the electromagnet is fixedly arranged in the middle of the top plate, the sucker is fixedly arranged at the bottom end of the electromagnet, the iron hammer is adsorbed at the bottom of the sucker, the sensor is fixedly arranged at the top end of the head die, and the sensor is electrically connected with the controller; when the electromagnet is powered off, the sucking disc releases the adsorption of the hammer, the hammer does free falling motion to directly smash the center of the electric power safety helmet, the impact force is tested through the sensor, the project that equipment can test is improved, and the practicability is improved.
Preferably, the support adjusting mechanism comprises a plurality of screws, friction plates and adjusting nuts, wherein the screws are respectively screwed at four corners of the bottom end of the base, the friction plates are fixedly arranged at the bottom ends of the screws, and the adjusting nuts are fixedly arranged at the upper parts of the friction plates; support equipment through a plurality of screw rods and friction plate, can adjust the extension length of screw rod in the base bottom through adjusting nut, make the base level place, make the device steadily place, be convenient for test.
Compared with the prior art, the utility model has the beneficial effects that: when the safety helmet is used, the safety helmet is placed on the placement mechanism, the safety helmet is limited through the limiting mechanism, the position of the safety helmet is prevented from being deviated, the chin of a wearer is simulated through the chin strap fixing mechanism, the chin strap is enabled to limit and fix the safety helmet, the tension of the chin strap and the safety helmet is tested, the safety helmet can be stably placed through the supporting and adjusting mechanism, and the safety helmet is convenient to test.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 4 is a schematic view of the right-side cross-sectional structure of the present utility model;
FIG. 5 is a schematic top view in cross-section of the present utility model;
The reference numerals in the drawings: 1. a base; 2. a vertical plate; 3. a mounting plate; 4. an electric telescopic rod; 5. a connecting frame; 6. a cross plate; 7. a U-shaped connecting frame; 8. a supporting cross plate; 9. a head mold; 10. a pressure sensor; 11. a mounting rod; 12. a controller; 13. a telescopic rod; 14. clamping blocks; 15. a spring; 16. a tension sensor; 17. a pull rod; 18. an H-shaped fixing frame; 19. a U-shaped fixed block; 20. a slide bar; 21. a bidirectional screw; 22. a limit sliding plate; 23. a top plate; 24. an electromagnet; 25. a suction cup; 26. an iron hammer; 27. a sensor; 28. a screw; 29. a friction plate; 30. and adjusting the nut.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, 2, 3 and 5, two vertical plates 2 are respectively and fixedly installed at the left and right ends of the top of a base 1, two mounting plates 3 are fixedly installed on the inner wall of the vertical plates 2, an electric telescopic rod 4 is fixedly installed at the top end of the mounting plates 3, the top end of the electric telescopic rod 4 is fixedly connected with a connecting frame 5, one end, close to the two connecting frames 5, of the electric telescopic rod 4 is fixedly provided with a transverse plate 6, the front and rear ends of the bottoms of the two transverse plates 6 are respectively and fixedly provided with a U-shaped connecting frame 7, the middle part of the bottom end of the U-shaped connecting frame 7 is fixedly connected with a supporting transverse plate 8, the top end of the middle part of the supporting transverse plate 8 is connected with a head die 9 through a pressure sensor 10, a controller 12 is installed at the front end of the top of the base 1 through a mounting rod 11, a display screen and a control button are arranged on the controller 12, the pressure sensor 10 is electrically connected with the controller 12, the telescopic rods 13 are respectively and fixedly arranged at one ends of the two transverse plates 6 opposite to each other, clamping blocks 14 are fixedly arranged at the other ends of the telescopic rods 13, arc-shaped grooves are formed in the lower parts of the clamping blocks 14, a plurality of springs 15 are respectively sleeved on the outer walls of the telescopic rods 13, one ends of the springs 15 are connected with the transverse plates 6, the other ends of the springs 15 are connected with the clamping blocks 14, four tension sensors 16 are respectively and fixedly arranged in the middle parts of the top ends of the base 1, the tension sensors 16 are electrically connected with the controller 12, pull rods 17 are arranged at the top ends of the tension sensors 16, H-shaped fixing frames 18 are fixedly arranged at the top ends of the four pull rods 17, U-shaped fixing blocks 19 are fixedly arranged at the middle parts of the bottom ends of the H-shaped fixing frames 18, a plurality of screw rods 28 are respectively and spirally arranged at four corners of the bottom ends of the base 1, friction plates 29 are fixedly arranged at the bottom ends of the screw rods 28, and adjusting nuts 30 are fixedly arranged at the upper parts of the friction plates 29;
During testing, the electric safety helmet is placed on the head die 9, the two clamping blocks 14 are pushed to be close to each other through the springs 15, the arc-shaped grooves at the bottoms of the clamping blocks 14 are tightly propped against the upper part of the electric safety helmet, the safety helmet is limited and fixed, the positions of the clamping blocks are prevented from being deviated, the chin strap is tied on the U-shaped fixing block 19, the U-shaped fixing block 19 simulates the chin of a wearer, the chin strap is stressed uniformly, the two electric telescopic rods 4 are started to push the connecting frame 5 to move upwards, the supporting transverse plate 8 is driven to move upwards through the tension sensor 16 and the U-shaped connecting frame 7, the tension of the chin strap and the electric safety helmet is detected through the pressure sensor 10, data are transmitted to the controller 12 for data processing, the display screen is used for displaying the test result, the intuitiveness of the test result is improved, the tested result is transmitted to the controller 12, the accuracy of the test is improved, the device is supported through the four tension sensors 28 and the friction plate 29, the stretching length of the screw 28 at the bottom of the base 1 can be adjusted through the adjusting nut 30, the base 1 is placed horizontally, and the test device is convenient to test.
As shown in fig. 3 and 4, the slide bar 20 is fixedly installed at the front and rear ends of the H-shaped fixing frame 18 on the left side of the upper part of the U-shaped fixing block 19, the bidirectional screw 21 is rotatably installed at the front and rear ends of the H-shaped fixing frame 18 on the right side of the upper part of the U-shaped fixing block 19, the front end of the bidirectional screw 21 passes through the H-shaped fixing frame 18 to be provided with a rotating handle, the limit slide plates 22 are slidably installed on the outer wall of the U-shaped fixing block 19, the left ends of the two limit slide plates 22 are slidably installed on the slide bar 20, the right ends are symmetrically and spirally installed at the front and rear ends of the bidirectional screw 21, the top plate 23 is fixedly installed at the top end of the vertical plate 2, the electromagnet 24 is fixedly installed in the middle of the top plate 23, the bottom end of the electromagnet 24 is fixedly installed with the sucker 25, the bottom of the sucker 25 is adsorbed with the hammer 26, the sensor 27 is fixedly installed at the top end of the head die 9, and the sensor 27 is electrically connected with the controller 12;
The bidirectional screw rod 21 is driven to rotate through the rotating handle, so that the two limiting sliding plates 22 are driven to be close to each other, the jaw belt is limited, the jaw belt is prevented from being deviated, the test result is inaccurate, the device can be suitable for jaw belts with different widths, when the electromagnet 24 is powered off, the suction cup 25 releases the suction of the hammer 26, the hammer 26 does free falling body movement and directly smashes the center position of the electric safety helmet, the impact force is tested through the sensor 27, the project that the device can test is improved, and the practicability is improved.
As shown in fig. 1 to 5, in the tension detection device for the electric protection cap, when the tension detection device is in operation, the extension length of a screw 28 at the bottom of a base 1 is regulated through a regulating nut 30, the device is supported through a plurality of screws 28 and friction plates 29, the base 1 is horizontally placed, the electric protection cap is placed on a head die 9, the electric protection cap is placed on the head die 9, a lower jaw belt is tied on a U-shaped fixed block 19, the U-shaped fixed block 19 simulates the chin of a wearer, the lower jaw belt is uniformly stressed, a handle is rotated to drive a bidirectional screw 21 to drive two limit sliding plates 22 to approach each other, the lower jaw belt is limited, the lower jaw belt is prevented from deflecting, two electric telescopic rods 4 are started to push a connecting frame 5 to move upwards, a tension sensor 16 and a U-shaped connecting frame 7 drive a supporting transverse plate 8 to move upwards, the lower jaw belt and the tension sensor 10 are used for detecting the tension of the electric protection cap, data are transmitted to a controller 12, the hammer is simultaneously used for processing the data, the test result is transmitted to the controller 12 through the four tension sensors 16 for detecting the tension received by the hammer, in addition, the test result is transmitted to the power is displayed by the display screen 24, and the electromagnet is directly absorbed by the electromagnet 26, and the impact force is relieved when the test result is directly absorbed by the electromagnet 26 and the center of the electric protection cap is directly and the center of the electric protection cap is moved by the sucker.
The pressure sensor 10, the controller 12, the tension sensor 16, the electromagnet 24 and the sensor 27 of the tension detection device for the electric power protection cap are purchased in the market, and the person skilled in the art only needs to install and operate according to the attached using instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (7)
1. The tension detection equipment of the electric power protective cap comprises a base (1); the safety helmet is characterized by further comprising two vertical plates (2), a placement mechanism, a chin strap fixing mechanism, a limiting mechanism and a supporting and adjusting mechanism, wherein the two vertical plates (2) are respectively and fixedly installed at the left and right ends of the top of the base (1), the placement mechanism is installed between the two vertical plates (2), the chin strap fixing mechanism is installed at the top end of the base (1) and located below the placement mechanism, the limiting mechanism is installed on the placement mechanism, the safety helmet is limited and fixed, and the supporting and adjusting mechanism is installed at four corners of the bottom end of the base (1) to support equipment.
2. The electric power protection cap tension detection device according to claim 1, wherein the placement mechanism comprises two mounting plates (3), two electric telescopic rods (4), two connecting frames (5), two transverse plates (6), two U-shaped connecting frames (7), a supporting transverse plate (8), a head die (9), a pressure sensor (10), a mounting rod (11) and a controller (12), the two mounting plates (3) are fixedly mounted on the inner wall of the vertical plate (2), the electric telescopic rods (4) are fixedly mounted on the top ends of the mounting plates (3), the connecting frames (5) are fixedly connected with the top ends of the electric telescopic rods (4), the transverse plates (6) are fixedly mounted on one end, close to each other, of the two connecting frames (5), of the two transverse plates (6) is fixedly mounted with the U-shaped connecting frames (7) respectively, the middle end of the U-shaped connecting frames (7) is fixedly connected with the supporting transverse plate (8), the middle top end of the supporting transverse plate (8) is connected with the head die (9) through the pressure sensor (10), and the controller (12) is mounted on the front end of the controller (12) through the mounting rod (11) and the front end of the controller (12) and the controller (12).
3. The tension detection device for the electric power protective cap according to claim 2, wherein the limiting mechanism comprises a plurality of telescopic rods (13), two clamping blocks (14) and a plurality of springs (15), the telescopic rods (13) are respectively and fixedly arranged at one ends of the two transverse plates (6) opposite to each other, the clamping blocks (14) are fixedly arranged at the other ends of the telescopic rods (13), arc-shaped grooves are formed in the lower parts of the clamping blocks (14), the springs (15) are respectively sleeved on the outer walls of the telescopic rods (13), one ends of the springs (15) are connected with the transverse plates (6), and the other ends of the springs (15) are connected with the clamping blocks (14).
4. The tension detection device for the electric power protective cap according to claim 2, wherein the chin strap fixing mechanism comprises four tension sensors (16), four pull rods (17), an H-shaped fixing frame (18) and a U-shaped fixing block (19), the four tension sensors (16) are respectively and fixedly arranged in the middle of the top end of the base (1), the tension sensors (16) are electrically connected with the controller (12), the pull rods (17) are arranged at the top ends of the tension sensors (16), the H-shaped fixing frame (18) is fixedly arranged at the top ends of the four pull rods (17), and the U-shaped fixing block (19) is fixedly arranged in the middle of the bottom end of the H-shaped fixing frame (18).
5. The power protection cap tension detection device according to claim 4, further comprising a slide bar (20), a bidirectional screw (21) and two limiting slide plates (22), wherein the slide bar (20) is fixedly arranged at the front end and the rear end of the H-shaped fixing frame (18) at the left side of the upper part of the U-shaped fixing block (19), the bidirectional screw (21) is rotatably arranged at the front end and the rear end of the H-shaped fixing frame (18) at the right side of the upper part of the U-shaped fixing block (19), the front end of the bidirectional screw (21) penetrates through the H-shaped fixing frame (18) to be provided with a rotating handle, the limiting slide plates (22) are slidably arranged on the outer wall of the U-shaped fixing block (19), the left ends of the two limiting slide plates (22) are slidably arranged on the slide bar (20), and the right ends are symmetrically screwed at the front end and the rear end of the bidirectional screw (21).
6. The tension detection device for the electric power protective cap according to claim 2, further comprising a top plate (23), an electromagnet (24), a sucker (25), a hammer (26) and a sensor (27), wherein the top plate (23) is fixedly arranged at the top end of the vertical plate (2), the electromagnet (24) is fixedly arranged at the middle part of the top plate (23), the sucker (25) is fixedly arranged at the bottom end of the electromagnet (24), the hammer (26) is adsorbed at the bottom of the sucker (25), the sensor (27) is fixedly arranged at the top end of the head die (9), and the sensor (27) is electrically connected with the controller (12).
7. The tension detection device for the electric power protection cap according to claim 1, wherein the supporting and adjusting mechanism comprises a plurality of screw rods (28), friction plates (29) and adjusting nuts (30), the screw rods (28) are respectively screwed at four corners of the bottom end of the base (1), the friction plates (29) are fixedly arranged at the bottom ends of the screw rods (28), and the adjusting nuts (30) are fixedly arranged at the upper parts of the friction plates (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322846441.0U CN221078300U (en) | 2023-10-24 | 2023-10-24 | Electric power protection cap pulling force check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322846441.0U CN221078300U (en) | 2023-10-24 | 2023-10-24 | Electric power protection cap pulling force check out test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221078300U true CN221078300U (en) | 2024-06-04 |
Family
ID=91261818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322846441.0U Active CN221078300U (en) | 2023-10-24 | 2023-10-24 | Electric power protection cap pulling force check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221078300U (en) |
-
2023
- 2023-10-24 CN CN202322846441.0U patent/CN221078300U/en active Active
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