CN214852251U - 5G intelligence CRAN integration rack - Google Patents
5G intelligence CRAN integration rack Download PDFInfo
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- CN214852251U CN214852251U CN202121352490.3U CN202121352490U CN214852251U CN 214852251 U CN214852251 U CN 214852251U CN 202121352490 U CN202121352490 U CN 202121352490U CN 214852251 U CN214852251 U CN 214852251U
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Abstract
The application provides a 5G intelligence CRAN integration rack, including the cabinet body, one side of the cabinet body is equipped with the cabinet door, and the top and the middle part of cabinet body avris are provided with first filter house and second filter house respectively, and one side of the cabinet body is provided with transmission portion, and transmission portion and first filter house match the setting, are provided with in the transmission portion to be used for the radiating heat dissipation mechanism of the cabinet body, and the internal top setting of cabinet is used for the fire control mechanism who puts out a fire. This application can detect the internal conflagration whether appears of cabinet through the smoke transducer of the detection portion that sets up, when the internal conflagration that appears of cabinet, transmission portion forward work, and transmission portion drives the mechanism that opens and shuts and operates, under the effect of the mechanism that opens and shuts for fire control mechanism operates, under fire control mechanism's effect, can put out the conflagration, makes this rack possess the fire control function.
Description
Technical Field
The utility model relates to a rack technical field particularly, relates to a 5G intelligence CRAN integration rack.
Background
At present, 5G intelligence CRAN integration rack is because its internally mounted has more electron device, and electron device live working can produce the heat, probably has the conflagration to take place, and current 5G intelligence CRAN integration rack does not possess the fire control function mostly, and the practicality is lower. Therefore, we improve the method and propose a 5G intelligent CRAN integrated cabinet.
Disclosure of Invention
The utility model aims to provide a: aiming at the existing 5G intelligent CRAN integrated cabinet, as more electronic devices are arranged in the cabinet, the electronic devices can generate heat when working with electricity, a fire disaster can happen, most of the existing 5G intelligent CRAN integrated cabinet does not have a fire-fighting function, and the practicability is lower.
In order to achieve the purpose of the invention, the utility model provides the following technical scheme:
5G intelligent CRAN integrated cabinet to improve the problems.
The present application is specifically such that:
the intelligent cabinet comprises a cabinet body, one side of the cabinet body is equipped with the cabinet door, the top and the middle part of cabinet body avris are provided with first filter house and second filter house respectively, one side of the cabinet body is provided with transmission portion, and transmission portion and first filter house match the setting, be provided with in the transmission portion and be used for the radiating heat dissipation mechanism of the cabinet body, the internal top of cabinet sets up the fire control mechanism who is used for putting out a fire, be provided with the mechanism that opens and shuts that control fire control mechanism switches on between fire control mechanism and the transmission portion, the internal detection portion that still is provided with of cabinet, the bottom of cabinet body avris is provided with the control portion.
In a preferred embodiment of the present invention, the first filter unit is an annular filter plate that is attached to the cabinet.
In a preferred embodiment of the present invention, the second filter portion is a circular filter plate embedded in the cabinet.
As the preferred technical scheme of this application, transmission portion is the step motor of scarf joint on the cabinet body, and step motor is located the middle part of annular filter.
As the preferred technical scheme of this application, heat dissipation mechanism includes the spacing ring, set up the spout with spacing ring sliding connection in the cabinet body, it has the change to alternate on step motor's the output shaft, one side of spacing ring also sets up for the arch, and this arch wear out the cabinet body and with change fixed connection, the spacing groove has been seted up to the inboard one end of change, the one end of spacing groove is rotated and is connected with the locating part, and the one end of locating part wears out the spacing groove, be fixed with first spring between locating part and the spacing groove, fixed being equipped with on step motor's the output shaft with locating part assorted rotation piece, the outer isoplanar of change is fixed and is equipped with a plurality of flabellums of breathing in.
As the preferred technical scheme of this application, fire control mechanism is including the containing cylinder that is equipped with the high-pressure dry powder, the top of containing cylinder alternates fixedly with the internal top of cabinet, and the cross-section of containing cylinder is the toper, the middle part intercommunication of containing cylinder bottom has swing joint, swing joint's one end intercommunication has the spray tube, the cross-section of spray tube also is the toper, and has seted up a plurality of trompils on the spray tube, the bottom of containing cylinder is provided with the cover, and swing joint and spray tube all are located the cover, the embedded rubber layer that is equipped with spray tube assorted of cover, the top threaded connection of containing cylinder has the thread cover.
As the preferred technical scheme of this application, mechanism that opens and shuts includes the threaded rod, the one end of threaded rod is rotated with one side of storage cylinder and is connected, the fixed gag lever post that is equipped with of opposite side of storage cylinder, the interlude is fixed with the connecting rod on the cover of a section of thick bamboo, the one end and the threaded rod threaded connection of connecting rod, and the other end and the gag lever post of connecting rod alternate and be connected, the interlude is fixed with first bevel gear on the threaded rod, first bevel gear meshing is connected with second bevel gear, be provided with the locating piece on the second bevel gear, one side of locating piece also is protruding setting, and this arch and second bevel gear alternate fixedly.
As the preferred technical scheme of this application, it is connected with the dead lever to rotate on the locating piece, and the internal top fixed connection of one end of dead lever and cabinet, the constant head tank has been seted up in the locating piece, the fixed electro-magnet that is equipped with in one side of constant head tank, one side of electro-magnet is provided with the T piece, the locating piece is worn out to the one end of T piece, and offers on step motor's the output shaft with T piece assorted rectangular channel, one of T piece serves the cover and is equipped with the second spring, one side of T piece is inlayed and is equipped with electromagnet assorted magnet.
As the preferred technical scheme of this application, the test section is for all with cabinet internal one side top fixed connection's temperature sensor and smoke transducer.
As the preferred technical scheme of this application, control portion is for alternate fixed PLC controller with the cabinet body.
Compared with the prior art, the beneficial effects of the utility model are that:
in the scheme of the application:
1. the smoke sensor of the detection part can detect whether a fire disaster occurs in the cabinet body, when the fire disaster occurs in the cabinet body, the transmission part works in the positive direction, the transmission part drives the opening and closing mechanism to operate, the fire fighting mechanism operates under the action of the opening and closing mechanism, and the fire disaster can be extinguished under the action of the fire fighting mechanism, so that the cabinet has a fire fighting function;
2. the temperature sensor of the detection part can detect whether the cabinet body needs to dissipate heat, when the cabinet body needs to dissipate heat, the transmission part works in reverse direction, the transmission part drives the heat dissipation mechanism to operate, and the cabinet body can be subjected to heat dissipation treatment under the action of the heat dissipation mechanism;
3. the transmission part works in the positive direction, so that the heat dissipation mechanism can not be operated when the opening and closing mechanism operates, the heat dissipation mechanism is prevented from expanding fire when the opening and closing mechanism operates, and the fire extinguishing efficiency is improved;
4. through the first filter house and the second filter house that set up, can realize the intercommunication of the cabinet body and external world, the external dust that also prevents simultaneously enters into the cabinet internal, has improved the practicality.
Description of the drawings:
fig. 1 is a schematic structural diagram of a 5G intelligent CRAN integrated cabinet provided in the present application;
fig. 2 is a schematic partial cross-sectional structure diagram of a 5G intelligent CRAN integrated cabinet provided in the present application;
fig. 3 is a schematic partial sectional view of an opening and closing mechanism of a 5G intelligent CRAN integrated cabinet provided in the present application;
FIG. 4 is a schematic diagram of a partial cross-sectional structure of a fire protection mechanism of the 5G intelligent CRAN integrated cabinet provided by the present application;
fig. 5 is a schematic partial sectional structure view of a heat dissipation mechanism of the 5G intelligent CRAN integrated cabinet provided in the present application.
The following are marked in the figure:
1. a cabinet body;
2. a cabinet door;
3. a first filter unit;
4. a second filter unit;
5. a transmission section;
6. a heat dissipation mechanism; 601. a limiting ring; 602. rotating the ring; 603. a limiting member; 604. a first spring; 605. a rotating member; 606. an air intake fan blade;
7. a fire-fighting mechanism; 701. a storage cylinder; 702. a movable joint; 703. a nozzle; 704. a cylinder cover; 705. a rubber layer;
8. an opening and closing mechanism; 801. a threaded rod; 802. a limiting rod; 803. a connecting rod; 804. a first bevel gear; 805. a second bevel gear; 806. positioning blocks; 807. fixing the rod; 808. an electromagnet; 809. a T-piece; 810. a second spring; 811. a magnet;
9. a detection unit;
10. a control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.
Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and the features and technical solutions in the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper" and "lower" indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that a person skilled in the art would conventionally understand, and such terms are only used for convenience of description and simplification of the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, this embodiment provides a 5G intelligent rack integrated with crac, including the cabinet body 1, one side of the cabinet body 1 is equipped with cabinet door 2, the top and the middle part of 1 avris of the cabinet body are provided with first filter unit 3 and second filter unit 4 respectively, one side of the cabinet body 1 is provided with transmission unit 5, and transmission unit 5 and first filter unit 3 phase-match set up, be provided with on the transmission unit 5 and be used for the radiating heat dissipation mechanism 6 of the cabinet body 1, the top in the cabinet body 1 sets up the fire control mechanism 7 that is used for putting out a fire, be provided with the mechanism 8 that opens and shuts that control fire control mechanism 7 switched on between fire control mechanism 7 and the transmission unit 5, still be provided with detection part 9 in the cabinet body 1, the bottom of 1 avris of the cabinet body is provided with control part 10.
In a preferred embodiment, in addition to the above-mentioned embodiment, the first filter portion 3 is an annular filter plate that is embedded in the cabinet 1, and the cabinet 1 can communicate with the outside through the annular filter plate, and can prevent dust from entering the cabinet 1.
In a preferred embodiment, in addition to the above-mentioned embodiment, the second filter portion 4 is a circular filter plate that is embedded in the cabinet 1, and the cabinet 1 can communicate with the outside through the circular filter plate, and can prevent external dust from entering the cabinet 1.
In a preferred embodiment, in addition to the above, the transmission part 5 is a stepping motor embedded in the cabinet 1, and the stepping motor is located in the middle of the annular filter plate.
As a preferred embodiment, on the basis of the above-mentioned method, further, the heat dissipation mechanism 6 includes a limiting ring 601, a sliding slot slidably connected to the limiting ring 601 is formed in the cabinet body 1, a rotating ring 602 is inserted on an output shaft of the stepping motor, one side of the limiting ring 601 is also provided with a protrusion, the protrusion penetrates through the cabinet body 1 and is fixedly connected to the rotating ring 602, one end of the inner side of the rotating ring 602 is provided with a limiting slot, one end of the limiting slot is rotatably connected to a limiting member 603, one end of the limiting member 603 penetrates through the limiting slot, a first spring 604 is fixedly arranged between the limiting member 603 and the limiting slot, a rotating member 605 matched with the limiting member 603 is fixedly arranged on the output shaft of the stepping motor, a plurality of air suction fan blades 606 are fixedly arranged on the outer side of the rotating ring 602 in an equal arc manner, when the cabinet body 1 needs to dissipate heat, the stepping motor works, the output shaft of the stepping motor drives the rotating member 605 to rotate in a reverse direction, and the rotating member 605 is locked to the limiting member 603, rotate piece 605 and drive locating part 603 and rotate, cooperation spacing ring 601, the rotation of locating part 603 drives swivel 602 and rotates, swivel 602 drives the flabellum 606 rotation of breathing in, under the effect of the flabellum 606 of breathing in, can arrange the heat in the cabinet body 1 to the external world, the heat dissipation of the cabinet body 1 has been realized, through first spring 604, can be when rotating piece 605 forward rotation, make locating part 603 shrink back spacing inslot, and then make and rotate piece 605 and can not drive swivel 602 and rotate.
As a preferred embodiment, on the basis of the above-mentioned manner, further, the fire-fighting mechanism 7 includes a storage barrel 701 containing high-pressure dry powder, the top end of the storage barrel 701 is fixedly inserted into the top end of the cabinet body 1, the section of the storage barrel 701 is tapered, the middle part of the bottom end of the storage barrel 701 is communicated with a movable joint 702, one end of the movable joint 702 is communicated with a spray pipe 703, the section of the spray pipe 703 is also tapered, a plurality of openings are formed in the spray pipe 703, a barrel cover 704 is arranged at the bottom of the storage barrel 701, the movable joint 702 and the spray pipe 703 are both located in the barrel cover 704, a rubber layer 705 matched with the spray pipe 703 is embedded in the barrel cover 704, the top end of the storage barrel 701 is connected with a threaded cover by a screw thread, the barrel cover 704 moves down, the rubber layer 705 is separated from the spray pipe 703, so that the high-pressure dry powder is sprayed out through the spray pipe 703 to extinguish a fire, the range of the high-pressure dry powder can be expanded by the movable joint 702, the fire extinguishing effect is better, and the practicability is improved.
As a preferred embodiment, in addition to the above-mentioned mode, the opening and closing mechanism 8 further includes a threaded rod 801, one end of the threaded rod 801 is rotatably connected with one side of the receiving cylinder 701, a limiting rod 802 is fixedly arranged on the other side of the receiving cylinder 701, a connecting rod 803 is fixedly inserted into the cylinder cover 704, one end of the connecting rod 803 is in threaded connection with the threaded rod 801, the other end of the connecting rod 803 is in threaded connection with the limiting rod 802, a first bevel gear 804 is fixedly inserted into the threaded rod 801, a second bevel gear 805 is engaged and connected with the first bevel gear 804, a positioning block 806 is arranged on the second bevel gear 805, one side of the positioning block 806 is also provided with a protrusion, and the protrusion is fixedly inserted into the second bevel gear 805; a fixed rod 807 is rotatably connected to the positioning block 806, one end of the fixed rod 807 is fixedly connected with the top end in the cabinet body 1, a positioning groove is formed in the positioning block 806, an electromagnet 808 is fixedly arranged on one side of the positioning groove, a T-shaped piece 809 is arranged on one side of the electromagnet 808, one end of the T-shaped piece 809 penetrates through the positioning block 806, a rectangular groove matched with the T-shaped piece 809 is formed in an output shaft of the stepping motor, a second spring 810 is sleeved on one end of the T-shaped piece 809, a magnet 811 matched with the electromagnet 808 is embedded on one side of the T-shaped piece 809, when a fire disaster occurs, the stepping motor and the electromagnet 808 are controlled to work, the output shaft of the stepping motor rotates forward, the electromagnet 808 works to generate magnetism the same as that of the magnet 811, the T-shaped piece 809 moves to be alternately connected with the rectangular groove, the output shaft of the stepping motor drives the positioning block 806 to rotate, the positioning block 806 drives the second bevel gear 805 to rotate, the second bevel gear 805 drives the first bevel gear 804 to rotate, the first bevel gear 804 drives the threaded rod 801 to rotate, and under the limiting action of the limiting rod 802, the connecting rod 803 drives the barrel cover 704 to move downwards.
In addition to the above-described embodiments, the detection unit 9 is preferably a temperature sensor and a smoke sensor both fixedly connected to the top portion of one side of the cabinet 1, and the temperature sensor can detect the temperature inside the cabinet 1, and the smoke sensor can detect whether a fire is present inside the cabinet 1.
In addition to the above-described embodiments, the control unit 10 is a PLC controller inserted and fixed to the cabinet 1, and the PLC controller may control the operations of the stepping motor and the electromagnet 808.
Specifically, this 5G intelligence CRAN integration rack is at during operation/when using: through the temperature sensor, the temperature in the cabinet body 1 can be detected, when the cabinet body 1 needs to dissipate heat, the stepping motor works, the output shaft of the stepping motor drives the rotating piece 605 to rotate reversely, the rotating piece 605 rotates to block the limiting piece 603, the rotating piece 605 drives the limiting piece 603 to rotate, the limiting ring 601 is matched, the rotating piece 603 drives the rotating ring 602 to rotate, the rotating ring 602 drives the air suction fan blades 606 to rotate, hot air in the cabinet body 1 can be discharged to the outside under the action of the air suction fan blades 606, heat dissipation of the cabinet body 1 is realized, through the first spring 604, the limiting piece 603 can be contracted back into the limiting groove when the rotating piece 605 rotates in the forward direction, and further the rotating piece 605 can not drive the rotating ring 602 to rotate; whether a fire disaster occurs in the cabinet body 1 can be detected through the smoke sensor, when the fire disaster occurs, the stepping motor and the electromagnet 808 are controlled to work, the output shaft of the stepping motor rotates in the positive direction, the electromagnet 808 works to generate magnetism the same as that of the magnet 811, so that the T-shaped piece 809 moves to be connected with the rectangular groove in an inserting manner, so that the output shaft of the stepping motor drives the positioning block 806 to rotate, the positioning block 806 drives the second bevel gear 805 to rotate, the second bevel gear 805 drives the first bevel gear 804 to rotate, the first bevel gear 804 drives the threaded rod 801 to rotate, under the limiting action of the limiting rod 802, the connecting rod 803 drives the cylinder cover 704 to move downwards, the rubber layer 705 is separated from the spray pipe 703, so that the high-pressure dry powder is sprayed out through the spray pipe 703 to extinguish fire, and then passes through the movable joint 702, the range of spraying high-pressure dry powder can be enlarged, the fire extinguishing effect is better, and the practicability is improved.
The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement may be made to the present invention; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (10)
1. A5G intelligent CRAN integrated cabinet comprises a cabinet body (1) and is characterized in that, a cabinet door (2) is arranged on one side of the cabinet body (1), a first filtering part (3) and a second filtering part (4) are respectively arranged at the top and the middle part of one side of the cabinet body (1), a transmission part (5) is arranged on one side of the cabinet body (1), the transmission part (5) is matched with the first filtering part (3), a heat dissipation mechanism (6) for dissipating heat of the cabinet body (1) is arranged on the transmission part (5), a fire-fighting mechanism (7) for extinguishing fire is arranged at the top in the cabinet body (1), an opening and closing mechanism (8) for controlling the conduction of the fire-fighting mechanism (7) is arranged between the fire-fighting mechanism (7) and the transmission part (5), the cabinet is characterized in that a detection part (9) is further arranged in the cabinet body (1), and a control part (10) is arranged at the bottom of one side of the cabinet body (1).
2. The 5G intelligent CRAN integrated cabinet according to claim 1, wherein the first filtering part (3) is an annular filtering plate embedded on the cabinet body (1).
3. The 5G intelligent CRAN integrated cabinet according to claim 1, wherein the second filtering part (4) is a circular filtering plate embedded on the cabinet body (1).
4. The 5G intelligent CRAN integrated cabinet according to claim 2, wherein the transmission part (5) is a stepping motor embedded on the cabinet body (1), and the stepping motor is positioned in the middle of the annular filter plate.
5. The 5G intelligent CRAN integrated cabinet according to claim 4, the heat dissipation mechanism (6) comprises a limiting ring (601), a sliding groove which is connected with the limiting ring (601) in a sliding way is arranged in the cabinet body (1), a rotating ring (602) is inserted on an output shaft of the stepping motor, one side of the limit ring (601) is also provided with a bulge, the bulge penetrates out of the cabinet body (1) and is fixedly connected with a rotating ring (602), one end of the inner side of the rotating ring (602) is provided with a limiting groove, one end of the limiting groove is rotatably connected with a limiting piece (603), one end of the limiting piece (603) penetrates through the limiting groove, a first spring (604) is fixedly arranged between the limiting piece (603) and the limiting groove, a rotating part (605) matched with the limiting part (603) is fixedly arranged on an output shaft of the stepping motor, the outer side of the rotating ring (602) is fixedly provided with a plurality of air suction fan blades (606) in an equal arc manner.
6. The 5G intelligent CRAN integrated cabinet according to claim 5, the fire-fighting mechanism (7) comprises a storage barrel (701) filled with high-pressure dry powder, the top end of the storage barrel (701) is fixedly inserted into the top end of the cabinet body (1), the section of the containing cylinder (701) is conical, the middle part of the bottom end of the containing cylinder (701) is communicated with a movable joint (702), one end of the movable joint (702) is communicated with a spray pipe (703), the section of the spray pipe (703) is also conical, a plurality of openings are arranged on the spray pipe (703), a barrel cover (704) is arranged at the bottom of the containing barrel (701), and the movable joint (702) and the spray pipe (703) are both positioned on the cylinder cover (704), a rubber layer (705) matched with the spray pipe (703) is embedded in the cylinder cover (704), and a threaded cover is connected to the top end of the storage cylinder (701) in a threaded mode.
7. The 5G intelligent CRAN integrated cabinet according to claim 6, the opening and closing mechanism (8) comprises a threaded rod (801), one end of the threaded rod (801) is rotatably connected with one side of the containing barrel (701), a limiting rod (802) is fixedly arranged on the other side of the containing barrel (701), a connecting rod (803) is fixedly inserted into the barrel cover (704), one end of the connecting rod (803) is in threaded connection with the threaded rod (801), the other end of the connecting rod (803) is connected with the limiting rod (802) in an inserting way, a first bevel gear (804) is fixedly inserted on the threaded rod (801), a second bevel gear (805) is meshed and connected with the first bevel gear (804), a positioning block (806) is arranged on the second bevel gear (805), one side of the positioning block (806) is also provided with a protrusion, and the protrusion is fixedly inserted into the second bevel gear (805).
8. The 5G intelligent CRAN integrated cabinet according to claim 7, wherein a fixing rod (807) is rotatably connected to the positioning block (806), one end of the fixing rod (807) is fixedly connected with the top end of the inside of the cabinet body (1), a positioning groove is formed in the positioning block (806), an electromagnet (808) is fixedly arranged on one side of the positioning groove, a T-shaped part (809) is arranged on one side of the electromagnet (808), one end of the T-shaped part (809) penetrates out of the positioning block (806), a rectangular groove matched with the T-shaped part (809) is formed in an output shaft of the stepping motor, a second spring (810) is sleeved on one end of the T-shaped part (809), and a magnet (811) matched with the electromagnet (808) is embedded in one side of the T-shaped part (809).
9. The 5G intelligent CRAN integrated cabinet according to claim 1, wherein the detection part (9) is a temperature sensor and a smoke sensor which are fixedly connected with the top of one side in the cabinet body (1).
10. The 5G intelligent CRAN integrated cabinet according to claim 1, wherein the control part (10) is a PLC controller inserted and fixed with the cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352490.3U CN214852251U (en) | 2021-06-17 | 2021-06-17 | 5G intelligence CRAN integration rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121352490.3U CN214852251U (en) | 2021-06-17 | 2021-06-17 | 5G intelligence CRAN integration rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214852251U true CN214852251U (en) | 2021-11-23 |
Family
ID=78807896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121352490.3U Active CN214852251U (en) | 2021-06-17 | 2021-06-17 | 5G intelligence CRAN integration rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214852251U (en) |
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2021
- 2021-06-17 CN CN202121352490.3U patent/CN214852251U/en active Active
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