CN221237383U - Abrasion-resistant elbow - Google Patents
Abrasion-resistant elbow Download PDFInfo
- Publication number
- CN221237383U CN221237383U CN202323135470.2U CN202323135470U CN221237383U CN 221237383 U CN221237383 U CN 221237383U CN 202323135470 U CN202323135470 U CN 202323135470U CN 221237383 U CN221237383 U CN 221237383U
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- Prior art keywords
- resistant
- abrasion
- plate
- wear
- group
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- 238000005299 abrasion Methods 0.000 title claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000005266 casting Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 33
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Thermal Insulation (AREA)
Abstract
The utility model relates to the technical field of elbows and discloses an abrasion-resistant elbow, which comprises a steel pipe, wherein an abrasion-resistant component capable of being clamped and connected and a protective abrasion-resistant casting component are arranged outside the steel pipe, the abrasion-resistant component comprises a first abrasion-resistant plate group arranged outside the steel pipe, a clamping structure capable of being clamped and connected is arranged inside the first abrasion-resistant plate group, the abrasion-resistant casting component comprises a heat insulating plate arranged at the top of the steel pipe, a protective structure capable of being protected is arranged at the bottom of the heat insulating plate, the abrasion-resistant component further comprises a sealing steel plate arranged outside the steel pipe, a limiting fixing structure is arranged inside the sealing steel plate, the abrasion-resistant component further comprises a second abrasion-resistant plate group, a group of first abrasion-resistant plate groups and a group of second abrasion-resistant plate groups are fixedly arranged on the outer wall of the steel pipe, the purpose of clamping and installing the device is achieved, the abrasion-resistant casting effect of the device is improved, the use stability of the device is improved, and the service life of the device is prolonged.
Description
Technical Field
The utility model belongs to the technical field of elbows, and particularly relates to an abrasion-resistant elbow.
Background
In the process of installing pipelines, because of the line trend requirement of the pipelines, the pipelines are required to be connected by using elbows, and an abrasion-resistant elbow is required.
The utility model discloses an elbow with the publication number of CN207279117U, which comprises an elbow body, wherein the elbow body comprises a vertical pipe, an elbow pipe and a horizontal pipe, one end of the elbow pipe is connected with the vertical pipe, the other end of the elbow pipe is connected with the horizontal pipe, a stepped hole a is formed in the upper surface of the horizontal pipe, a plurality of spiral diversion trenches are formed in the inner wall of the elbow pipe, and a wear-resistant layer is arranged at the inner bottom of the elbow pipe. According to the utility model, light is introduced through the organic glass plate b, the internal condition of the elbow can be observed through the organic glass plate a, the problem that the external part cannot directly judge the internal blocking condition of the elbow is solved, meanwhile, the impact of fluid on the inner wall of the elbow is relieved by the arrangement of the diversion trench, and the resistance of the inner wall of the elbow to the fluid impact is enhanced by the wear-resistant layer.
However, the above patent also has the following problems: in elbow adaptation process, can receive the influence of moisture in the environment, lead to inside wearing and tearing corruption in the situation of appearing of elbow, the protectiveness and the sealed effect of elbow are variation, and the device uses and has the potential safety hazard to inlay the antifriction plate in the steel pipe inboard more difficult, the cost is higher, antifriction plate junction clearance is difficult to control, has reduced the wear-resisting reliability of elbow.
The present utility model has been made in view of this.
Disclosure of utility model
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:
The utility model provides an abrasion-resistant elbow, includes the steel pipe, but the outside of steel pipe is provided with the abrasion-resistant subassembly of joint and the wear-resisting casting subassembly that can protect, but the abrasion-resistant subassembly is including setting up in the outside first wear-resisting board group of steel pipe, but the inside of first wear-resisting board group is provided with joint structure of joint, but the abrasion-resistant casting subassembly is including setting up in the heat insulating board at steel pipe top, but the bottom of heat insulating board is provided with protection architecture, but the abrasion-resistant subassembly is still including setting up in the outside seal steel plate of steel pipe, seal steel plate's inside is provided with spacing fixed knot constructs.
As a preferred embodiment of the utility model, the abrasion-resistant assembly further comprises a second wear-resistant plate group, a first wear-resistant plate group and a second wear-resistant plate group are fixedly arranged on the outer wall of the steel pipe, eight groups of first wear-resistant plates are arranged in the first wear-resistant plate group and the second wear-resistant plate group, sixteen groups of first wear-resistant plates are arranged in the first wear-resistant plate group and the second wear-resistant plate group, a second wear-resistant plate and a third wear-resistant plate are arranged in the first wear-resistant plate group and the second wear-resistant plate group, the number of the second wear-resistant plates is two, and the number of the third wear-resistant plates is two.
As a preferred embodiment of the utility model, the clamping structure comprises a first fixing plate, a group of first fixing plates are fixedly arranged on the outer parts of sixteen groups of first wear plates, a groove hole is formed in the outer wall of one side of the first fixing plate, a limiting groove plate is fixedly arranged in the groove hole, a clamping plate is fixedly arranged on the outer wall of one side of the limiting groove plate, a group of first fixing plates are fixedly arranged on the outer wall of one side of the third wear plate, a limiting groove plate is fixedly arranged in the first fixing plate, clamping plates are fixedly arranged on the outer wall of one side of the limiting groove plate, and eighteen groups of clamping plates are altogether arranged.
As a preferred embodiment of the utility model, the abrasion-resistant component further comprises a second fixing plate, wherein an arc-shaped groove hole is formed in the outer wall of one side of the first abrasion-resistant plate, an arc-shaped connecting port is fixedly arranged in the arc-shaped groove hole, a second fixing plate is fixedly arranged on the outer wall of one side of the arc-shaped connecting port, a strip-shaped groove hole is formed in the outer wall of one side of the second fixing plate, a clamping groove is fixedly arranged in the strip-shaped groove hole, a group of groove holes are formed in the outer wall of one side of the second abrasion-resistant plate, a second fixing plate is fixedly arranged in the groove hole, and a clamping groove is fixedly arranged in the second fixing plate.
As a preferred embodiment of the utility model, the abrasion-resistant assembly further comprises a limiting groove hole, the top of the steel pipe is provided with a sealing steel plate, the limiting groove hole is fixedly arranged in the sealing steel plate, the inner walls of the two sides of the limiting groove hole can be tightly attached to the outer walls of one sides of the second abrasion-resistant plate and the third abrasion-resistant plate, and the abrasion-resistant casting assembly can be filled between the first abrasion-resistant plate group and the limiting groove hole and between the second abrasion-resistant plate group and the limiting groove hole.
As a preferred embodiment of the utility model, the wear-resistant casting component further comprises a first waterproof layer, the first waterproof layer is adhered and installed at the bottom of the heat insulation plate, the protection structure comprises a first moisture-proof layer, the first moisture-proof layer is adhered and installed at the bottom of the first waterproof layer, the second waterproof layer is adhered and installed at the bottom of the first moisture-proof layer, the second moisture-proof layer is adhered and installed at the bottom of the second waterproof layer, and the protection plate is adhered and installed at the bottom of the second moisture-proof layer.
As a preferred embodiment of the utility model, one end of the second wear-resisting plate is hinged with a group of first wear-resisting plates, one end of the third wear-resisting plate is hinged with a group of first wear-resisting plates, eight groups of first wear-resisting plates are arranged between each group of second wear-resisting plates and a group of third wear-resisting plates, the eight groups of first wear-resisting plates are connected in a two-by-two clamping way, and the clamping plates can be hinged in the clamping grooves.
Compared with the prior art, the utility model has the following beneficial effects:
1. The purpose of carrying out joint installation to the device is reached, the wear-resisting casting effect of device is improved, prevents that the return bend from damaging in the use, improves the stability that the device used, extension device's life.
2. The purpose of carrying out multilayer protection to the device is reached, the security that improves the device and use reduces the influence of external environment to the return bend, improves the protection intensity of device, optimizes the use experience of device.
3. The method has the advantages of improving the suitability of part installation, facilitating abrasion-resistant protection of the elbow, improving the protection effect of the device, prolonging the service life of the device and reducing abrasion to the device.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
In the drawings:
FIG. 1 is a right side perspective view of the present utility model;
FIG. 2 is a bottom perspective view of the present utility model;
FIG. 3 is a perspective view of the structure of the present utility model shown in FIG. 1;
FIG. 4 is a perspective view of the structure of the present utility model in FIG. 2;
FIG. 5 is a perspective view of the structure of the present utility model in FIG. 3;
FIG. 6 is a perspective view of the structure of the present utility model in FIG. 4;
fig. 7 is a cross-sectional view of a filler material layer of the present utility model.
In the figure: 10. a steel pipe; 11. a first wear plate set; 12. a second wear plate set; 13. sealing steel plates; 14. limiting groove holes; 15. a first wear plate; 16. a second wear plate; 17. a third wear plate; 18. a first fixing plate; 19. limiting groove plates; 20. a clamping plate; 21. a second fixing plate; 22. a clamping groove; 23. an arc-shaped connecting port; 24. a heat insulating plate; 25. a first waterproof layer; 26. a first moisture barrier; 27. a second waterproof layer; 28. a second moisture barrier; 29. and (5) protecting the plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.
Embodiment one: the utility model provides an abrasion-resistant elbow, specifically is shown as fig. 1 and 2, includes steel pipe 10, but the outside of steel pipe 10 is provided with the abrasion-resistant subassembly of joint and the wear-resisting casting subassembly that can protect, and the abrasion-resistant subassembly is including setting up in the outside first wear-resisting board group 11 of steel pipe 10, but the inside of first wear-resisting board group 11 is provided with joint structure of joint, and the wear-resisting casting subassembly is including setting up in the heat insulating board 24 at steel pipe 10 top, and the bottom of heat insulating board 24 is provided with the protective structure that can protect, but the abrasion-resistant subassembly still includes setting up in the outside sealed steel sheet 13 of steel pipe 10, and the inside of sealed steel sheet 13 is provided with spacing fixed knot structure. The abrasion-resistant effect of the elbow is improved through the abrasion-resistant component, and the protective effect of the elbow is improved through the abrasion-resistant casting component.
As shown in fig. 2 and fig. 4, the abrasion-resistant assembly further includes a second wear-resistant plate group 12, a first wear-resistant plate group 11 and a second wear-resistant plate group 12 are fixedly installed on the outer wall of the steel pipe 10, eight groups of first wear-resistant plates 15 are disposed in the first wear-resistant plate group 11 and the second wear-resistant plate group 12, sixteen groups of first wear-resistant plates 15 are disposed in the first wear-resistant plate group 11 and the second wear-resistant plate group 12, a second wear-resistant plate 16 and a third wear-resistant plate 17 are disposed in the first wear-resistant plate group 11 and the second wear-resistant plate group 12, the number of the second wear-resistant plates 16 is two, and the number of the third wear-resistant plates 17 is two. The sealing steel plate 13 is placed on the top of the steel pipe 10, and the sealing steel plate 13 is pushed, so that the outer walls of the first wear-resisting plate group 11 and the second wear-resisting plate group 12 are tightly fixed with the inner wall of the limiting groove hole 14.
As shown in fig. 4 and 5, the fastening structure includes a first fixing plate 18, a set of first fixing plates 18 are fixedly installed on the outer parts of sixteen sets of first wear plates 15, a slot hole is formed on an outer wall of one side of the first fixing plate 18, a limiting slot plate 19 is fixedly installed in the slot hole, a fastening plate 20 is fixedly installed on an outer wall of one side of the limiting slot plate 19, a set of first fixing plates 18 are fixedly installed on an outer wall of one side of the third wear plate 17, a limiting slot plate 19 is fixedly installed in the first fixing plate 18, a fastening plate 20 is fixedly installed on an outer wall of one side of the limiting slot plate 19, and eighteen sets of fastening plates 20 are altogether.
As shown in fig. 5 and 6, the abrasion-resistant assembly further includes a second fixing plate 21, an arc-shaped slot is formed in an outer wall of one side of the first abrasion-resistant plate 15, an arc-shaped connection port 23 is fixedly mounted in the arc-shaped slot, a second fixing plate 21 is fixedly mounted on an outer wall of one side of the arc-shaped connection port 23, a strip-shaped slot is formed in an outer wall of one side of the second fixing plate 21, a clamping groove 22 is fixedly mounted in the strip-shaped slot, a group of slots are formed in an outer wall of one side of the second abrasion-resistant plate 16, a second fixing plate 21 is fixedly mounted in the slot, and a clamping groove 22 is fixedly mounted in the second fixing plate 21. The first wear-resistant plate 15 and the third wear-resistant plate 17 are pushed, the limiting groove plate 19 and the clamping plate 20 are pushed to the inside of the second fixing plate 21, and the clamping plate 20 is clamped and installed in the clamping groove 22. The first wear plate 15, the second wear plate 16 and the third wear plate 17 are connected in a clamping manner.
As shown in fig. 1, fig. 2 and fig. 3, the abrasion-resistant assembly further comprises a limiting groove hole 14, a sealing steel plate 13 is arranged at the top of the steel pipe 10, the limiting groove hole 14 is fixedly arranged in the sealing steel plate 13, inner walls on two sides of the limiting groove hole 14 can be tightly attached to outer walls on one sides of the second abrasion-resistant plate 16 and the third abrasion-resistant plate 17, and an abrasion-resistant casting assembly can be filled between the first abrasion-resistant plate group 11, the second abrasion-resistant plate group 12 and the limiting groove hole 14. The first wear-resistant plate group 11 and the second wear-resistant plate group 12 are limited and fixed through the sealing steel plate 13 and the limiting groove hole 14.
According to the above, the purpose of clamping and installing the device is achieved through the structures of the first wear-resisting plate group 11, the second wear-resisting plate group 12, the sealing steel plate 13, the limiting groove hole 14, the first wear-resisting plate 15, the second wear-resisting plate 16, the third wear-resisting plate 17, the first fixing plate 18, the limiting groove plate 19, the clamping plate 20, the second fixing plate 21, the clamping groove 22 and the arc-shaped connecting port 23, the wear-resisting casting effect of the device is improved, the bent pipe is prevented from being damaged in the using process, the using stability of the device is improved, and the service life of the device is prolonged.
Embodiment two: on the basis of the first embodiment, as shown in fig. 7, the wear-resistant casting assembly further includes a first waterproof layer 25, the first waterproof layer 25 is adhered and installed at the bottom of the heat insulation board 24, the protection structure includes a first moisture-proof layer 26, the first moisture-proof layer 26 is adhered and installed at the bottom of the first waterproof layer 25, the second waterproof layer 27 is adhered and installed at the bottom of the first moisture-proof layer 26, the second moisture-proof layer 28 is adhered and installed at the bottom of the second waterproof layer 27, and the protection board 29 is adhered and installed at the bottom of the second moisture-proof layer 28. The heat insulation plate 24 is used for heat insulation treatment of the bent pipe, the first waterproof layer 25 and the second waterproof layer 27 are used for waterproof treatment of the bent pipe, the first dampproof layer 26 and the second dampproof layer 28 are used for moisture removal treatment of the device, and the guard plate 29 is used for interlayer protection of the bent pipe.
According to the above, the aim of carrying out multilayer protection on the device is achieved through the structures of the heat insulation plate 24, the first waterproof layer 25, the first moisture-proof layer 26, the second waterproof layer 27, the second moisture-proof layer 28 and the guard plate 29, the use safety of the device is improved, the influence of the external environment on the bent pipe is reduced, the protection intensity of the device is improved, and the use experience of the device is optimized.
Embodiment III: on the basis of the first embodiment and the second embodiment, as shown in fig. 5 and 6, one end of the second wear-resisting plate 16 is hinged with a group of first wear-resisting plates 15, one end of the third wear-resisting plate 17 is hinged with a group of first wear-resisting plates 15, eight groups of first wear-resisting plates 15 are arranged between each group of second wear-resisting plates 16 and the group of third wear-resisting plates 17, two by two are clamped and installed between the eight groups of first wear-resisting plates 15, and the clamping plate 20 can be hinged and movable in the clamping groove 22. The gaps among the parts are adjusted through the clamping connection of the first wear-resistant plate 15, the second wear-resistant plate 16 and the third wear-resistant plate 17.
In summary, through the structures of the first wear-resistant plate 15, the second wear-resistant plate 16, the third wear-resistant plate 17, the clamping plate 20 and the clamping groove 22, the suitability of part installation is improved, the part installation is convenient, the abrasion-resistant protection of the elbow is convenient, the protection effect of the device is improved, the service life of the device is prolonged, and the abrasion to the device is reduced.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides an abrasion-resistant elbow, includes steel pipe (10), its characterized in that, but the outside of steel pipe (10) is provided with the abrasion-resistant subassembly of joint and the wear-resisting casting subassembly that can protect, abrasion-resistant subassembly is including setting up in the outside first wear-resisting board group (11) of steel pipe (10), but the inside of first wear-resisting board group (11) is provided with joint structure of joint, but wear-resisting casting subassembly is including setting up in heat insulating board (24) at steel pipe (10) top, but the bottom of heat insulating board (24) is provided with the protective structure that can protect, abrasion-resistant subassembly is still including setting up in the outside sealed steel sheet (13) of steel pipe (10), but the inside of sealed steel sheet (13) is provided with spacing fixed knot constructs.
2. The elbow according to claim 1, wherein the wear-resistant assembly further comprises a second wear-resistant plate group (12), a first wear-resistant plate group (11) and a second wear-resistant plate group (12) are fixedly mounted on the outer wall of the steel pipe (10), eight first wear-resistant plates (15) are arranged in the first wear-resistant plate group (11) and the second wear-resistant plate group (12), sixteen first wear-resistant plates (15) are arranged in total, a second wear-resistant plate (16) and a third wear-resistant plate (17) are arranged in the first wear-resistant plate group (11) and the second wear-resistant plate group (12), the number of the second wear-resistant plates (16) is two, and the number of the third wear-resistant plates (17) is two.
3. The abrasion-resistant elbow according to claim 2, wherein the clamping structure comprises a first fixing plate (18), a group of first fixing plates (18) are fixedly installed on the outer parts of sixteen groups of first abrasion-resistant plates (15), a groove hole is formed in one side outer wall of the first fixing plate (18), a limiting groove plate (19) is fixedly installed in the groove hole, a clamping plate (20) is fixedly installed on one side outer wall of the limiting groove plate (19), a group of first fixing plates (18) is fixedly installed on one side outer wall of the third abrasion-resistant plate (17), a limiting groove plate (19) is fixedly installed in the inner part of the first fixing plate (18), a clamping plate (20) is fixedly installed on one side outer wall of the limiting groove plate (19), and eighteen groups of clamping plates (20) are altogether.
4. The elbow of claim 3, wherein the abrasion-resistant component further comprises a second fixing plate (21), an arc-shaped groove is formed in the outer wall of one side of the first abrasion-resistant plate (15), an arc-shaped connecting port (23) is fixedly installed in the arc-shaped groove, a second fixing plate (21) is fixedly installed on the outer wall of one side of the arc-shaped connecting port (23), a strip-shaped groove is formed in the outer wall of one side of the second fixing plate (21), a clamping groove (22) is fixedly installed in the strip-shaped groove, a group of groove holes are formed in the outer wall of one side of the second abrasion-resistant plate (16), a second fixing plate (21) is fixedly installed in the groove holes, and the clamping groove (22) is fixedly installed in the second fixing plate (21).
5. The abrasion-resistant elbow according to claim 1, wherein the abrasion-resistant component further comprises a limiting groove hole (14), a sealing steel plate (13) is arranged at the top of the steel pipe (10), the limiting groove hole (14) is fixedly arranged in the sealing steel plate (13), two side inner walls of the limiting groove hole (14) can be tightly attached to one side outer walls of the second abrasion-resistant plate (16) and the third abrasion-resistant plate (17), and the abrasion-resistant casting component can be filled between the first abrasion-resistant plate group (11) and the second abrasion-resistant plate group (12) and the limiting groove hole (14).
6. The abrasion-resistant elbow according to claim 1, wherein the abrasion-resistant casting assembly further comprises a first waterproof layer (25), the first waterproof layer (25) is mounted on the bottom of the heat insulation plate (24) in a pasting mode, the protection structure comprises a first moisture-proof layer (26), the first moisture-proof layer (26) is mounted on the bottom of the first waterproof layer (25) in a pasting mode, the second waterproof layer (27) is mounted on the bottom of the first moisture-proof layer (26) in a pasting mode, the second moisture-proof layer (28) is mounted on the bottom of the second waterproof layer (27) in a pasting mode, and the protection plate (29) is mounted on the bottom of the second moisture-proof layer (28) in a pasting mode.
7. The abrasion-resistant elbow according to claim 2, wherein one end of the second abrasion-resistant plate (16) is hinged with a group of first abrasion-resistant plates (15), one end of the third abrasion-resistant plate (17) is hinged with a group of first abrasion-resistant plates (15), eight groups of first abrasion-resistant plates (15) are arranged between each group of second abrasion-resistant plates (16) and a group of third abrasion-resistant plates (17), two groups of first abrasion-resistant plates (15) are connected in a clamped mode, and the clamping plates (20) can be hinged in the clamping grooves (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323135470.2U CN221237383U (en) | 2023-11-20 | 2023-11-20 | Abrasion-resistant elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323135470.2U CN221237383U (en) | 2023-11-20 | 2023-11-20 | Abrasion-resistant elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221237383U true CN221237383U (en) | 2024-06-28 |
Family
ID=91598647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323135470.2U Active CN221237383U (en) | 2023-11-20 | 2023-11-20 | Abrasion-resistant elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221237383U (en) |
-
2023
- 2023-11-20 CN CN202323135470.2U patent/CN221237383U/en active Active
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