CN219967313U - Spare oil cooling machine - Google Patents
Spare oil cooling machine Download PDFInfo
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- CN219967313U CN219967313U CN202321557729.XU CN202321557729U CN219967313U CN 219967313 U CN219967313 U CN 219967313U CN 202321557729 U CN202321557729 U CN 202321557729U CN 219967313 U CN219967313 U CN 219967313U
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- oil cooler
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- machine tool
- tee
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- 238000001816 cooling Methods 0.000 title abstract description 11
- 238000003825 pressing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 176
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of oil coolers, in particular to a standby oil cooler, which comprises the following components: the oil cooler comprises an oil cooler body, a first tee joint, a second tee joint and a trolley. The first interface and the second interface of the first tee are respectively communicated with an oil outlet pipeline and an oil inlet pipeline of the oil tank of the machine tool, and the third interface is used for being communicated with the oil inlet pipeline of the oil cooler body. The first interface and the second interface of the second tee are respectively communicated with an oil inlet pipeline and an oil outlet pipeline of the oil tank of the machine tool, and the third interface is used for being communicated with an oil outlet pipeline of the oil cooler body. The oil cooler body is fixedly connected to the top surface of the cart. The machine tool oil tank is communicated with the machine tool oil cooler through the first tee joint and the second tee joint. When the machine tool oil cooler breaks down, the oil cooler body is communicated with the machine tool oil tank through the first tee joint and the second tee joint, so that the oil cooler body can cool oil in the machine tool oil tank. At the moment, the oil cooler of the machine tool is hoisted, disassembled and replaced, and the machine tool is normally operated under the cooling action of the oil cooler body, so that the machine tool is prevented from stopping to influence the production efficiency.
Description
Technical Field
The utility model relates to the technical field of oil coolers, in particular to a standby oil cooler.
Background
Oil coolers are commonly used for cooling machine tool hydraulic oil. Machine tools are machines for manufacturing machines and machines, including lathes, drilling machines, boring machines, milling machines, planing and slotting machines, and the like. The oil cooler is cooled by utilizing the evaporation heat absorption principle of a refrigerant, the oil pump extracts oil from the oil outlet pipeline of the oil tank of the machine tool to the oil inlet pipeline of the oil cooler, then enters the refrigerating system for heat exchange treatment, and the cooled oil flows out from the oil outlet pipeline of the oil cooler and returns to the oil tank of the machine tool from the oil inlet pipeline of the oil tank of the machine tool.
When the oil cooler fails, the machine tool cannot continue to work, and the inner parts of the oil cooler cannot be replaced, so that the whole oil cooler needs to be replaced after the failed oil cooler is lifted and disassembled. The oil cooler is replaced by disassembling the connecting oil pipe and the cable of the oil cooler and hoisting the oil cooler, and the disassembling time is 30 minutes. And the oil pipe is disassembled, and the oil cooler is hung for 30 minutes. Reinstallation of the tubing takes 40 minutes. After the installation is completed, the oil tank of the oil cooler needs to be filled with hydraulic oil and cooling oil, and the time is 20 minutes. The machine tool oil cooler is lifted, dismounted and replaced for 120 minutes, and the machine tool cannot work during the process of lifting, dismounting and replacing the machine tool oil cooler, so that the influence on production efficiency is large.
Disclosure of Invention
In order to overcome the problems in the related art to at least a certain extent, the utility model aims to provide a standby oil cooler which can solve the problems that when the oil cooler fails, the time for replacing the oil cooler is long, and the machine tool cannot work to affect the production efficiency. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
The utility model provides a standby oil cooler, which comprises:
an oil cooler body;
the first connector of the first tee is communicated with an oil outlet pipeline of the oil tank of the machine tool, the second connector of the first tee is communicated with an oil inlet pipeline of the oil cooler of the machine tool, and the third connector of the first tee is used for being communicated with the oil inlet pipeline of the oil cooler body;
the first connector of the second tee is communicated with an oil inlet pipeline of the oil tank of the machine tool, the second connector of the second tee is communicated with an oil outlet pipeline of the oil cooler of the machine tool, and the third connector of the second tee is used for being communicated with an oil outlet pipeline of the oil cooler body;
and the oil cooler body is fixedly connected to the top surface of the cart.
Optionally, the method further comprises:
the connecting panel is fixedly connected to the machine tool, a first quick-connection interface and a second quick-connection interface are arranged on the connecting panel, the first quick-connection interface is communicated with a third interface of the first tee joint, the first quick-connection interface is used for being communicated with an oil inlet pipeline of the oil cooler body, the second quick-connection interface is communicated with the third interface of the second tee joint, and the second quick-connection interface is used for being communicated with an oil outlet pipeline of the oil cooler body;
the first end of the first hose is used for being communicated with an oil inlet pipeline of the oil cooler body, and the second end of the hose is provided with a first quick connector matched with the first quick connector;
the first end of the second hose is used for being communicated with an oil outlet pipeline of the oil cooler body, and a second quick connector matched with the second quick connector is arranged at the second end of the second hose.
Optionally, a third quick connector and a fourth quick connector are arranged on the oil cooler body, a third quick connector matched with the third quick connector is arranged at the first end of the first hose, and a fourth quick connector matched with the fourth quick connector is arranged at the first end of the second hose.
Optionally, the method further comprises:
the support is vertically connected to the top surface of the cart, and a pipe rack for placing the first hose and the second hose is arranged at the top of the support.
Optionally, the pipe rack sets up two at least along the direction of height of support, adjacent two in the pipe rack:
the length of the pipe placing frame positioned below is smaller than that of the pipe placing frame positioned above.
Optionally, the method further comprises:
the oil receiving box is fixedly connected to the support and is positioned below the pipe placing frame.
Optionally, the method further comprises:
and the anti-collision frame is detachably connected to the bracket and extends out of the cart.
Optionally, the first tee and the second tee are tee ball valves.
Optionally, the cart comprises:
the bottom plate is fixedly connected with the oil cooler body;
the bottom plate is fixedly connected to the top of the chassis frame;
the idler wheels are fixedly arranged at the bottom of the chassis frame.
Optionally, the method further comprises:
the pressing block is fixed on the bottom plate through bolts and is used for compressing and fixing the oil cooler body.
The technical scheme provided by the utility model can comprise the following beneficial effects:
the machine tool oil tank is communicated with the machine tool oil cooler through the first tee joint and the second tee joint. When the machine tool oil cooler breaks down, the oil cooler body of the standby oil cooler is communicated with the machine tool oil tank through the first tee joint and the second tee joint, so that the oil cooler body can cool oil in the machine tool oil tank. At the moment, the oil cooler of the machine tool is hoisted, disassembled and replaced, and the machine tool normally operates under the cooling action of the oil cooler body, so that the influence on the production efficiency caused by the incapability of working when the machine tool is stopped is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front side architecture of a backup oil chiller shown in accordance with some example embodiments;
FIG. 2 is a schematic diagram of a rear side configuration of a backup oil chiller, according to some example embodiments;
FIG. 3 is a front view illustrating a backup oil chiller according to some example embodiments;
FIG. 4 is a side view illustrating a backup oil chiller according to some example embodiments;
FIG. 5 is a top view illustrating a backup oil chiller according to some example embodiments;
FIG. 6 is an enlarged schematic view at A in FIG. 1;
fig. 7 is a schematic diagram illustrating oil passage communication according to some example embodiments.
In the figure: 1. an oil cooler body; 2. a cart; 21. a bottom plate; 22. a chassis frame; 23. a roller; 3. a third quick plug interface; 4. a bracket; 5. placing a pipe support; 6. an oil receiving box; 7. an anti-collision frame; 8. briquetting; 9. a fourth quick plug interface; 10. a machine tool oil tank; 11. a first tee; 12. a second tee; 13. an oil cooler of the machine tool; 14. a connection panel; 15. a first hose; 16. and a second hose.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the utility model described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.
Referring to fig. 1-7, the present embodiment provides a backup oil cooler, comprising: the oil cooler comprises an oil cooler body 1, a first tee joint 11, a second tee joint 12 and a cart 2. The tee is a pipeline connector with three connectors and mainly aims at changing the direction of fluid.
The first interface of the first tee 11 is communicated with an oil outlet pipeline of the machine tool oil tank 10 through an oil pipe, and the second interface of the first tee 11 is communicated with an oil inlet pipeline of the machine tool oil cooler 13 through an oil pipe. The third port of the first tee joint 11 is closed, the oil outlet pipeline of the machine tool oil tank 10 is communicated with the oil inlet pipeline of the machine tool oil cooler 13 through the tee joint, and oil in the machine tool oil tank 10 can be sucked by the machine tool oil cooler 13 for cooling.
The first interface of the second tee 12 is communicated with an oil inlet pipeline of the machine tool oil tank 10 through an oil pipe, and the second interface of the second tee 12 is communicated with an oil outlet pipeline of the machine tool oil cooler 13 through an oil pipe. The third port of the second tee joint 12 is closed, the oil inlet pipeline of the machine tool oil tank 10 is communicated with the oil outlet pipeline of the machine tool oil cooler 13 through the tee joint, and the oil cooled by the machine tool oil cooler 13 can flow back into the machine tool oil tank 10.
The oil cooler body 1 is fixedly connected to the top surface of the cart 2, and the cart 2 can be used for moving the oil cooler body 1 to a required position.
When the machine tool oil cooler 13 breaks down, the pushing trolley 2 pushes the oil cooler body 1 to the machine tool, an oil inlet pipeline of the oil cooler body 1 is communicated with a third interface of the first tee joint 11, and an oil outlet pipeline of the oil cooler body 1 is communicated with a third interface of the second tee joint 12. Then the second port of the first tee 11 and the second port of the second tee 12 are closed and the third port of the first tee 11 and the third port of the second tee 12 are opened. At this time, the oil outlet pipeline of the machine tool oil tank 10 is communicated with the oil inlet pipeline of the oil cooler body 1 through a tee joint, the oil in the machine tool oil tank 10 can be sucked by the oil cooler body 1 for cooling, the oil inlet pipeline of the machine tool oil tank 10 is communicated with the oil outlet pipeline of the oil cooler body 1 through a tee joint, and the oil cooled by the oil cooler body 1 can flow back into the machine tool oil tank 10. Therefore, the oil cooler body 1 is used for cooling the oil in the oil tank 10 of the machine tool, and the machine tool can be ensured to normally run.
So set up, after closing the second interface of first tee bend 11 and the second interface of second tee bend 12, can hoist and mount and dismantle the trouble oil cooler and change whole lathe oil cooler 13. In the process of lifting, dismounting and replacing, the machine tool normally operates under the cooling action of the oil cooler body 1. Avoiding the influence on the production efficiency caused by the incapability of working when the machine tool is stopped.
After the hoisting, the disassembly and replacement are completed, the third interface of the first tee joint 11 and the third interface of the second tee joint 12 are closed, the second interface of the first tee joint 11 and the second interface of the second tee joint 12 are opened, so that the replaced oil cooler can be used for cooling oil in the oil tank 10 of the machine tool, and the oil cooler body 1 can be removed and pushed away by using the trolley 2.
Wherein the first tee 11 and the second tee 12 are tee ball valves. The three-way ball valve can enable three orthogonal pipelines to be communicated with each other and cut off a third channel, so as to play roles of diversion and confluence. The control is more convenient.
As an alternative embodiment, the backup oil cooler further includes: a connection panel 14, a first hose 15 and a second hose 16. The connection panel 14 is provided with a first quick connector and a second quick connector, and the connection panel 14 is fixedly connected to a machine tool. The first quick-connect port is communicated with the third port of the first tee 11 through an oil pipe, and the second quick-connect port is communicated with the third port of the second tee 12 through an oil pipe.
The first end of the first hose 15 is communicated with an oil inlet pipeline of the oil cooler body 1, a first quick connector is arranged at the second end of the first hose 15, and the first quick connector are combined to form a pneumatic quick connector. The first end of the second hose 16 is communicated with the oil outlet pipeline of the oil cooler body 1, and a second quick connector is arranged at the second end of the first hose 15 and combined with the second quick connector to form a pneumatic quick connector. The pneumatic quick connector is a commonly used connecting piece for gas circuit communication and is used for quickly connecting and disconnecting two pipelines.
When the machine tool oil cooler 13 breaks down, the pushing cart 2 pushes the oil cooler body 1 to the machine tool, the first quick connector is inserted into the first quick connector, and the oil inlet pipeline of the oil cooler body 1 is communicated with the third connector of the first tee joint 11 through the first hose 15. The second quick connector is inserted into the second quick connector, and the oil outlet pipeline of the oil cooler body 1 is communicated with the third connector of the second tee joint 12 through the second hose 16. So arranged, the connection is more rapid, thereby shortening the downtime of the machine.
In some embodiments, the third quick connector 3 and the fourth quick connector 9 are arranged on the oil cooler body 1, so that the third quick connector 3 is communicated with an oil inlet pipeline of the oil cooler body 1, and the fourth quick connector 9 is communicated with an oil outlet pipeline of the oil cooler body 1. A third quick connector is provided at the first end of the first hose 15 and a fourth quick connector is provided at the first end of the second hose 16. The third quick connector and the third quick connector 3 are combined to form a pneumatic quick connector. The fourth quick connector and the fourth quick connector 9 are combined to form a pneumatic quick connector.
The third quick connector is inserted into the third quick connector 3, and the first end of the first hose 15 is communicated with the oil inlet pipeline of the oil cooler body 1. The fourth quick connector is inserted into the fourth quick connector 9, and the first end of the second hose 16 is communicated with the oil outlet pipeline of the oil cooler body 1. So set up, the dismouting is more convenient, when not using, can pull out third quick connector from third quick connector 3, pulls out fourth quick connector from fourth quick connector 9 to accomodate first hose 15 and second hose 16.
As an alternative embodiment, a bracket 4 is provided on the top surface of the cart 2, and two brackets 4 are provided and are respectively located on both sides of the oil cooler body 1. The pipe placing frames 5 are fixedly arranged at the tops of the two brackets 4. When not in use, the first hose 15 and the second hose 16 can be wound on the pipe rack 5 for storage, and the taking and storage are more convenient.
Further, three tube placing frames 5 are arranged on each support 4, and the three tube placing frames 5 are sequentially arranged along the height direction of the support 4. The lengths of the three pipe racks 5 decrease from top to bottom. When the first hose 15 or the second hose 16 is wound in this way, the first hose 15 or the second hose 16 is wound around the uppermost pipe rack 5, then around the middle pipe rack 5, and finally around the lowermost pipe rack 5. The interference is reduced, and the winding is more convenient.
In some embodiments, the oil receiving box 6 is disposed on the bracket 4 such that the oil receiving box 6 is opened upward and below the pipe rack 5. So set up, when first hose 15 or second hose 16 winds to establish on putting pipe support 5, the intraductal remaining fluid falls into in the oil receiving box 6 when flowing out from first quick-connect joint or second quick-connect joint and accomodates, prevents to flow and causes the pollution subaerial.
As an alternative embodiment, further comprising: and a crash frame 7. The brackets 4 are fixedly provided with mounting sleeves, and the anti-collision frames 7 are respectively inserted into the mounting sleeves at the front sides of the two brackets 4. So that the anti-collision frame 7 is positioned at the front side of the oil cooler body 1, and the anti-collision frame 7 extends out of the cart 2. So set up, when promoting shallow 2, buffer stop 7 effectively prevents that oil cooler body 1 from being impacted.
Regarding the specific structure of the cart 2, the cart 2 includes: a base plate 21, a chassis frame 22 and rollers 23. The bottom plate 21 fixed connection is at the top of chassis frame 22, and gyro wheel 23 installs the bottom at chassis frame 22, and gyro wheel 23 supports chassis frame 22 and bottom plate 21, and the gyro wheel that rolls can make bottom plate 21 remove, with oil cooler body 1 fixed connection on bottom plate 21.
Wherein the rollers 23 are arranged in plurality, and the rollers 23 are universal rollers.
Regarding the fixation of the oil cooler body 1, a pressing block 8 is provided on the top surface of the bottom plate 21. Wherein the pressing block 8 is provided with a through groove in a penetrating way up and down. A threaded hole is formed in the top surface of the bottom plate 21, and a bolt is screwed into the threaded hole after passing through the through groove. After the edge of the bottom of the oil cooler body 1 is placed at the bottom of the pressing block 8, the bolts are screwed tightly, so that the oil cooler body 1 is pressed and fixed.
It should be noted that, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used herein for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description herein, it should also be noted that the terms "mounted," "connected," "coupled," and "connected," are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example, unless otherwise specifically indicated and defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model. It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to. The schemes provided by the utility model comprise the basic schemes of the schemes, are independent of each other and are not mutually restricted, but can be combined with each other under the condition of no conflict, so that a plurality of effects are realized together.
Claims (10)
1. A backup oil chiller comprising:
an oil cooler body (1);
the first connector of the first tee is communicated with an oil outlet pipeline of the oil tank of the machine tool, the second connector of the first tee is communicated with an oil inlet pipeline of the oil cooler of the machine tool, and the third connector of the first tee is used for being communicated with the oil inlet pipeline of the oil cooler body (1);
the first interface of the second tee is communicated with an oil inlet pipeline of the oil tank of the machine tool, the second interface of the second tee is communicated with an oil outlet pipeline of the oil cooler of the machine tool, and the third interface of the second tee is used for being communicated with the oil outlet pipeline of the oil cooler body (1);
the oil cooler comprises a trolley (2), wherein the oil cooler body (1) is fixedly connected to the top surface of the trolley (2).
2. The backup oil chiller of claim 1, further comprising:
the connecting panel is fixedly connected to the machine tool, a first quick-connection interface and a second quick-connection interface are arranged on the connecting panel, the first quick-connection interface is communicated with a third interface of the first tee joint, the first quick-connection interface is used for being communicated with an oil inlet pipeline of the oil cooler body (1), the second quick-connection interface is communicated with the third interface of the second tee joint, and the second quick-connection interface is used for being communicated with an oil outlet pipeline of the oil cooler body (1);
the first end of the first hose is used for being communicated with an oil inlet pipeline of the oil cooler body (1), and the second end of the first hose is provided with a first quick connector matched with the first quick connector;
the first end of the second hose is used for being communicated with an oil outlet pipeline of the oil cooler body (1), and the second end of the second hose is provided with a second quick connector matched with the second quick connector.
3. The standby oil cooler according to claim 2, characterized in that a third quick connector (3) and a fourth quick connector (9) are arranged on the oil cooler body (1), a third quick connector matched with the third quick connector (3) is arranged at a first end of the first hose, and a fourth quick connector matched with the fourth quick connector (9) is arranged at a first end of the second hose.
4. The backup oil chiller of claim 2, further comprising:
the support (4), support (4) are vertical to be connected on the top surface of shallow (2), the top of support (4) is provided with and is used for placing first hose with put pipe support (5) of second hose.
5. The spare oil cooler according to claim 4, wherein at least two of the tube holders (5) are arranged along the height direction of the bracket (4), and two adjacent tube holders (5) are arranged in the following:
the length of the pipe placing frame (5) positioned below is smaller than that of the pipe placing frame (5) positioned above.
6. The backup oil chiller of claim 4, further comprising:
the oil receiving box (6), oil receiving box (6) is fixedly connected to the support (4), and oil receiving box (6) is located below the pipe placing frame (5).
7. The backup oil chiller of claim 4, further comprising:
and the anti-collision frame (7) is detachably connected to the bracket (4), and the anti-collision frame (7) extends out of the trolley (2).
8. The backup oil cooler of claim 1, wherein the first tee and the second tee are both tee ball valves.
9. The backup oil cooler as claimed in claim 1, wherein the trolley (2) comprises:
the oil cooler comprises a bottom plate (21), wherein the oil cooler body (1) is fixedly connected to the bottom plate (21);
the bottom plate (21) is fixedly connected to the top of the bottom plate frame (22);
the roller (23) is fixedly arranged at the bottom of the chassis frame (22).
10. The backup oil chiller of claim 9, further comprising:
the pressing block (8), the pressing block (8) is fixed on the bottom plate (21) through a bolt, and the pressing block (8) is used for compressing and fixing the oil cooler body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557729.XU CN219967313U (en) | 2023-06-16 | 2023-06-16 | Spare oil cooling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557729.XU CN219967313U (en) | 2023-06-16 | 2023-06-16 | Spare oil cooling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219967313U true CN219967313U (en) | 2023-11-07 |
Family
ID=88579779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321557729.XU Active CN219967313U (en) | 2023-06-16 | 2023-06-16 | Spare oil cooling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219967313U (en) |
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2023
- 2023-06-16 CN CN202321557729.XU patent/CN219967313U/en active Active
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