CN222424436U - A heat insulation mechanism and fixing device - Google Patents
A heat insulation mechanism and fixing device Download PDFInfo
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- CN222424436U CN222424436U CN202421693342.1U CN202421693342U CN222424436U CN 222424436 U CN222424436 U CN 222424436U CN 202421693342 U CN202421693342 U CN 202421693342U CN 222424436 U CN222424436 U CN 222424436U
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- heat insulation
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- sliding
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- 230000007246 mechanism Effects 0.000 title claims abstract description 54
- 238000009413 insulation Methods 0.000 title claims abstract description 52
- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a heat insulation mechanism and a fixing device, which belong to the technical field of automatic control instruments and are used for solving the problems that a filter screen in the heat insulation mechanism is easy to be blocked by dust and the heat radiation efficiency of the heat insulation mechanism to the automatic control instrument is affected when the heat insulation mechanism is used for a long time in the using process of the existing heat insulation mechanism and the fixing device; the heat dissipation piece is fixedly connected to the inner side of the fixed box; two grid baffle nets are arranged and are fixedly connected to the inner side of the left end of the fixed box; the automatic control device comprises a fixing box, a fixing support, a driving motor, a filter screen, a self-control instrument and a filter screen.
Description
Technical Field
The utility model belongs to the technical field of automatic control instruments, and particularly relates to a heat insulation mechanism and a fixing device.
Background
The self-control instrument can control the heat exchange system, and when the self-control instrument is used, the external heat is too high to damage the instrument, so that the heat insulation mechanism is usually required to be used for radiating the heat of the self-control instrument.
According to the application number CN202120763070.8, the heat insulation structure of the automatic control instrument relates to the technical field of heat insulation equipment of the automatic control instrument, in particular to the heat insulation structure of the automatic control instrument, which comprises a heat insulation plate, wherein the inner wall of the heat insulation plate is fixedly connected with a first hollow water plate, and the inner wall of the first hollow water plate is fixedly connected with a second hollow water plate. This thermal-insulated structure of automatic control instrument for personnel can pour into the inside water of water tank into first hollow water board and the hollow water inboard of second when using, later utilize heat insulating board and the first hollow water board and the hollow water board of second that are equipped with water to placing the instrument in this structure and carry out thermal-insulated processing, only need take out its inside water when the temperature of the temperature in first hollow water board and the hollow water board of second risees can, so this structure is not only in the operation comparatively simple and easy when carrying out thermal-insulated processing to the instrument, and thermal-insulated effect is comparatively ideal moreover, the personnel's of being convenient for use.
Based on the above, in the use process of the existing heat insulation mechanism and the fixing device, when the heat insulation mechanism is used for a long time, the filter screen in the heat insulation mechanism is easy to be blocked by dust, so that the heat dissipation efficiency of the heat insulation mechanism to the self-control instrument is affected.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a heat insulation mechanism and a fixing device, which are used for solving the problems that when the heat insulation mechanism is used for a long time, a filter screen in the heat insulation mechanism is easy to be blocked by dust and the heat dissipation efficiency of the heat insulation mechanism to an automatic control instrument is affected in the use process of the conventional heat insulation mechanism and the fixing device.
The utility model discloses a heat insulation mechanism and a fixing device, which are achieved by the following specific technical means:
A heat insulation mechanism and a fixing device comprise a fixing frame, a fixing box, a heat dissipation piece, a grid baffle net, a fixing bracket, a driving motor, a heat dissipation fan, a supporting frame, a central shaft, a filter screen, a fixing mechanism and a heat insulation mechanism; the heat dissipation device comprises a fixing box, a heat dissipation part, two grid baffle nets, a driving motor, two driving motors, two supporting frames, two groups of supporting frames, a central shaft, a filter screen sliding connection and a heat insulation mechanism, wherein the fixing box is fixedly arranged on the inner side of the fixing box, the heat dissipation part is fixedly connected to the inner side of the fixing box, the two grid baffle nets are fixedly connected to the inner side of the left end of the fixing box, the two grid baffle nets are respectively and fixedly connected to the inner side of the left end of the fixing box, the two fixing brackets are respectively and fixedly connected to the inner side of the left end of the fixing box, the two fixing brackets are respectively and fixedly connected to the inner side of the upper end central shaft, the lower end of the filter screen is respectively and fixedly connected to the outer side of the lower end central shaft, the fixing mechanism is arranged at the front end of the fixing box, and the heat insulation mechanism is arranged on the inner side of the fixing box.
The fixing mechanism comprises a mounting plate, compression springs, first V-shaped rods, a fixing shaft, fastening bolts, first sliding blocks and first clamping plates, wherein the mounting plate is connected to the front end of a fixing frame in a sliding mode, the upper ends of the compression springs are fixedly connected to the lower end faces of the mounting plate, the lower ends of the compression springs are fixedly connected to the upper end faces of the fixing frame, the two first V-shaped rods are hinged to the inner sides of the front ends of the fixing frame, the fixing shaft is fixedly connected to the inner sides of the lower ends of the two first V-shaped rods, the fixing shaft is connected to the inner sides of the front ends of the fixing frame in a rotating mode, threads are arranged at the left end of the fixing shaft, the fastening bolts are connected to the left ends of the fixing shaft in a threaded mode, the two first sliding blocks are hinged to the upper ends of the rear ends of the two first V-shaped rods respectively, the two first sliding blocks are connected to the lower end faces of the mounting plate in a sliding mode, the two first clamping plates are arranged, and the two first clamping plates are hinged to the upper ends of the two first V-shaped rods respectively.
The fixing mechanism further comprises two second V-shaped rods, two second sliding blocks, sliding rods, threaded rods and second clamping plates, wherein the two second V-shaped rods are respectively hinged to the left end and the right end of the fixing frame, the two second sliding blocks are respectively hinged to the upper ends of the two second V-shaped rods and are both in sliding connection with the lower end face of the mounting plate, the two sliding rods are respectively connected to the upper end faces of the two second V-shaped rods in a sliding mode, the two threaded rods are respectively connected to the upper ends of the two second V-shaped rods in a rotating mode, the two threaded rods are respectively connected to the inner sides of the two sliding rods in a threaded mode, the two second clamping plates are respectively hinged to the upper ends of the two sliding rods, and the two second clamping plates are respectively hinged to the upper ends of the two sliding rods.
Further, the heat insulation mechanism comprises a scroll spring, one end of the scroll spring is fixedly connected with the outer side of the upper end central shaft, and the other end of the scroll spring is fixedly connected with the outer side of the upper end supporting frame.
The heat insulation mechanism further comprises a limiting wheel, a limiting inserted link and a reset spring, wherein the limiting wheel is fixedly connected to the outer side of the central shaft at the upper end, the limiting inserted link is slidably connected to the inner side of the upper end of the fixed box, the upper end of the reset spring is fixedly connected to the lower end face of the limiting inserted link, and the lower end of the reset spring is fixedly connected to the inner side of the upper end of the fixed box.
The heat insulation mechanism further comprises a speed reducing rod and speed reducing springs, wherein the speed reducing rod is connected to the inner side of the fixing frame in a sliding mode, the speed reducing rod abuts against the lower end of the filter screen on the outer side of the central shaft at the lower end of the heat insulation mechanism, the two speed reducing springs are arranged, the upper ends of the two speed reducing springs are fixedly connected to the lower end face of the speed reducing rod, and the lower ends of the two speed reducing springs are fixedly connected to the inner side of the fixing frame.
Compared with the prior art, the utility model has the following beneficial effects:
The automatic control device is arranged through the fixing mechanism, clamping and fixing of the automatic control device are achieved, after the automatic control device is placed on the upper end face of the mounting plate, the mounting plate is pushed down to enable the mounting plate to slide downwards, at the moment, the first V-shaped rod and the second V-shaped rod clamp the automatic control device through the first clamping plate and the second clamping plate under the action of sliding of the mounting plate, operation is simple, working efficiency is improved, through the arrangement of the heat insulation mechanism, heat insulation and replacement of a filter screen of the automatic control device are achieved, when the automatic control device clamps to the upper end face of the mounting plate, the fixing frame and the fixing box can separate the automatic control device from equipment needing heat insulation, heat emitted by the heat insulation equipment can be transmitted to a heat dissipation piece through the fixing frame and the fixing box, at the moment, a heat dissipation fan is driven to rotate to dissipate heat, dust in air can be filtered by the filter screen, the filter screen is prevented from being blocked after long-time use, at the moment, air pressure in the fixing box is reduced, at the moment, the limiting insert rod can slide downwards, the limiting wheel can rotate, a central shaft at the upper end of the central shaft can rotate under the action of a scroll spring, the working efficiency is improved, the automatic control device is required to be manually cooled, the efficiency is improved, the automatic control device is not required to be manually cooled, the efficiency is improved, and the automatic control device is required to be manually cooled, and the efficiency is improved, and can be operated, and can be required to be cooled, and when the device is required to be can be operated to be cooled.
Drawings
Fig. 1 is a schematic structural view of the main body of the present utility model.
Fig. 2 is a schematic structural view of a second V-bar of the present utility model.
Fig. 3 is a schematic view of the structure of the fastening bolt of the present utility model.
Fig. 4 is a schematic structural view of the slide bar of the present utility model.
Fig. 5 is a schematic structural view of the heat dissipating fan of the present utility model.
Fig. 6 is a schematic structural view of a heat sink according to the present utility model.
Fig. 7 is a schematic view of the structure of the reduction rod of the present utility model.
Fig. 8 is a partially enlarged schematic view of the structure of fig. 6a according to the present utility model.
In the figure, the correspondence between the component names and the drawing numbers is:
1. A fixing frame; 2, a fixed box, 3, a heat radiating piece, 4, a grid baffle net, 5, a fixed bracket, 6, a driving motor, 7, a heat radiating fan, 8, a supporting frame, 9, a central shaft, 10, a filter screen, 11, a mounting plate, 12, a compression spring, 13, a first V-shaped rod, 1301, a fixed shaft, 1302, a fastening bolt, 14, a first sliding block, 15, a first clamping plate, 16, a second V-shaped rod, 17, a second sliding block, 18, a sliding rod, 19, a threaded rod, 20, a second clamping plate, 21, a scroll spring, 22, a limiting wheel, 23, a limiting inserting rod, 24, a reset spring, 25, a speed reducing rod, 26 and a speed reducing spring.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1-4:
The utility model provides a heat insulation mechanism and a fixing device, which comprise a fixing frame 1, a fixing box 2, a heat radiating piece 3, grid baffle nets 4, fixing supports 5, driving motors 6, heat radiating fans 7, supporting frames 8, central shafts 9, a filter screen 10 and a fixing mechanism, wherein the fixing box 2 is fixedly arranged on the inner side of the fixing frame 1, the heat radiating piece 3 is fixedly connected on the inner side of the fixing box 2, the two grid baffle nets 4 are fixedly connected on the inner side of the left end of the fixing box 2, the two fixing supports 5 are respectively and fixedly connected on the inner side of the fixing box 2, the driving motors 6 are respectively and fixedly arranged on the outer sides of the two fixing supports 5, the heat radiating fans 7 are respectively and fixedly connected on the left ends of rotating shafts of the two driving motors 6, the supporting frames 8 are respectively and fixedly connected on the upper end faces and lower end faces of the fixing box 2, the central shafts 9 are respectively and rotatably connected on the inner sides of the two groups of the supporting frames 8, the filter screen 10 is slidingly connected on the inner side of the right end of the fixing box 2, the upper end of the filter screen 9 is coated on the outer side of the upper end of the central shaft 9, and the outer side of the filter screen 10 is coated on the outer side of the fixing frame 1.
The fixing mechanism comprises a mounting plate 11, a compression spring 12, a first V-shaped rod 13, a fixing shaft 1301, a fastening bolt 1302, a first sliding block 14, a first clamping plate 15, a second V-shaped rod 16, a second sliding block 17, a sliding rod 18, a threaded rod 19 and a second clamping plate 20; the mounting plate 11 is connected to the front end of the fixing frame 1 in a sliding manner; the upper end of the compression spring 12 is fixedly connected to the lower end surface of the mounting plate 11, and the lower end of the compression spring 12 is fixedly connected to the upper end surface of the fixing frame 1; the first V-shaped rods 13 are provided with two first V-shaped rods 13, the two first V-shaped rods 13 are hinged to the inner sides of the front ends of the fixing frame 1, the fixing shaft 1301 is fixedly connected to the inner sides of the lower ends of the two first V-shaped rods 13, the fixing shaft 1301 is rotatably connected to the inner sides of the front ends of the fixing frame 1, threads are arranged at the left ends of the fixing shaft 1301, the fastening bolts 1302 are in threaded connection with the left ends of the fixing shaft 1301, the first sliding blocks 14 are provided with two first sliding blocks 14 and are respectively hinged to the upper ends of the rear ends of the two first V-shaped rods 13, the two first sliding blocks 14 are respectively connected to the lower end surfaces of the mounting plate 11 in a sliding mode, the first clamping plates 15 are provided with two first clamping plates 15 and are respectively hinged to the upper ends of the two first V-shaped rods 13, the second V-shaped rods 16 are provided with two second V-shaped rods 16 and are respectively hinged to the left end and right end ends of the fixing frame 1, the second sliding blocks 17 are provided with two second sliding blocks 17 and are respectively hinged to the upper ends of the two second V-shaped rods 16, the two second sliding rods 17 are respectively connected to the two second V-shaped rods 16 in a sliding mode, the two sliding rods 18 are respectively connected to the two threaded rods 19 respectively on the two upper end surfaces of the two V-shaped rods 19 respectively, the two threaded rods 19 are respectively connected with the inner sides of the two sliding rods 18 in a threaded manner, the two second clamping plates 20 are arranged, and the two second clamping plates 20 are respectively hinged with the upper ends of the two sliding rods 18.
The specific use mode and the function of the embodiment are that after the fixing frame 1 is installed on equipment needing heat insulation, after the automatic control instrument is placed on the upper end face of the mounting plate 11, the automatic control instrument is pressed down to enable the mounting plate 11 to slide downwards, at the moment, the first V-shaped rod 13 and the second V-shaped rod 16 clamp the automatic control instrument through the first clamping plate 15 and the second clamping plate 20 under the action of the sliding of the mounting plate 11, at the moment, the automatic control instrument is fixed through tightening the fastening bolt 1302, the threaded rod 19 is rotated, the position of the second clamping plate 20 is adjusted through the threaded connection of the threaded rod 19 and the sliding rod 18, and the automatic control instruments with different specifications can be clamped.
Examples
On the basis of the first embodiment, as shown in fig. 5-8, the heat insulation mechanism comprises a scroll spring 21, a limiting wheel 22, a limiting inserting rod 23, a return spring 24, a reducing rod 25 and reducing springs 26, wherein the heat insulation mechanism is arranged on the inner side of a fixed box 2, one end of the scroll spring 21 is fixedly connected on the outer side of an upper end central shaft 9, the other end of the scroll spring 21 is fixedly connected on the outer side of an upper end supporting frame 8, the limiting wheel 22 is fixedly connected on the outer side of the upper end central shaft 9, the limiting inserting rod 23 is slidingly connected on the inner side of the upper end of the fixed box 2, the upper end of the return spring 24 is fixedly connected on the lower end face of the limiting inserting rod 23, the lower end of the return spring 24 is fixedly connected on the inner side of the upper end of the fixed box 2, the reducing rods 25 are slidingly connected on the inner side of a fixed frame 1, the reducing rods 25 abut against the lower ends of a filter screen 10 on the outer side of the lower end central shaft 9, the two reducing springs 26 are arranged on the upper ends of the two reducing springs 26 and the lower ends of the two reducing springs 26 are fixedly connected on the inner side of the fixed frame 1.
The specific use mode and the action of this embodiment are that when the self-control instrument is clamped to the upper end face of the mounting plate 11, the fixing frame 1 and the fixing box 2 can separate the self-control instrument from the equipment needing heat insulation, the heat emitted by the equipment needing heat insulation can be transferred to the heat radiating piece 3 through the fixing frame 1 and the fixing box 2, at this time, the heat radiating fan 7 is driven to rotate to radiate the heat radiating piece 3 through the starting of the driving motor 6, the filter screen 10 can filter dust in the air, after the self-control instrument is used for a long time, the filter screen 10 can be blocked, at this time, the rotation of the heat radiating fan 7 can reduce the air pressure in the fixing box 2, at this time, the limiting inserted rod 23 can slide downwards, the sliding of the limiting inserted rod 23 can be separated from the limiting wheel 22, at this time, the upper central shaft 9 can rotate under the action of the scroll spring 21, the filter screen 10 is wound, the filter screen 10 on the right side of the fixing box 2 is replaced, at this time, the air pressure in the fixing box 2 can be recovered, at this time, the limiting inserted rod 23 can reset under the action of the reset spring 24, the inner side of the limiting wheel 22, the filter screen 9 is limited by the upper central shaft 25 and the speed of the speed reducing spring 26 can reduce the speed of the filter screen 10.
In this context, the following points need to be noted:
1. The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and reference may be made to the general design for other structures.
2. The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.
The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (6)
1. A heat insulation mechanism and a fixing device comprise a fixing frame (1), a fixing box (2), heat dissipation pieces (3), grid baffle nets (4), fixing supports (5), driving motors (6), heat dissipation fans (7), supporting frames (8), central shafts (9), filter screens (10), fixing mechanisms and heat insulation mechanisms, wherein the fixing box (2) is fixedly arranged on the inner side of the fixing frame (1), the heat dissipation pieces (3) are fixedly connected on the inner side of the fixing box (2), the grid baffle nets (4) are arranged in two, the two grid baffle nets (4) are fixedly connected on the inner side of the left end of the fixing box (2), the heat insulation mechanism is characterized in that the fixing supports (5) are arranged in two, the two fixing supports (5) are fixedly connected on the inner side of the fixing box (2), the driving motors (6) are arranged in two, the two driving motors (6) are fixedly arranged on the outer sides of the two fixing supports (5), the heat dissipation fans (7) are fixedly connected on the left ends of the two driving motors (6), the supporting frames (8) are arranged on the left ends of the two groups of the two driving motors (8), the two groups of the two driving motors (8) are fixedly connected on the two end faces of the fixing boxes (9), the two central shafts (9) are respectively connected to the inner sides of the two groups of supporting frames (8) in a rotating mode, the filter screen (10) is connected to the inner side of the right end of the fixed box (2) in a sliding mode, the upper end of the filter screen (10) is coated on the outer side of the central shaft (9) at the upper end, the lower end of the filter screen (10) is coated on the outer side of the central shaft (9) at the lower end, the fixed mechanism is arranged at the front end of the fixed frame (1), and the heat insulation mechanism is arranged on the inner side of the fixed box (2).
2. The heat insulation mechanism and the fixing device according to claim 1, wherein the fixing mechanism comprises a mounting plate (11), a compression spring (12), a first V-shaped rod (13), a fixing shaft (1301), a fastening bolt (1302), a first sliding block (14) and a first clamping plate (15), wherein the mounting plate (11) is connected to the front end of the fixing frame (1) in a sliding mode, the upper end of the compression spring (12) is fixedly connected to the lower end face of the mounting plate (11), the lower end of the compression spring (12) is fixedly connected to the upper end face of the fixing frame (1), the first V-shaped rods (13) are provided with two first V-shaped rods, the two first V-shaped rods (13) are hinged to the inner sides of the front ends of the fixing frame (1), the fixing shaft (1301) is fixedly connected to the inner sides of the lower ends of the two first V-shaped rods (13), the fixing shaft (1301) is rotatably connected to the inner sides of the front ends of the fixing frame (1), the left end of the fixing shaft (1301) is provided with threads, the fastening bolt (1302) is connected to the left end of the fixing shaft (1301) in a threaded mode, the first sliding block (14) is provided with the two first sliding blocks (14) are respectively, the two first V-shaped rods (13) are hinged to the inner sides of the lower ends of the fixing plate (13) respectively, the two first clamping plates (15) are respectively hinged to the upper ends of the two first V-shaped rods (13).
3. The heat insulation mechanism and the fixing device according to claim 2, wherein the fixing mechanism further comprises a second V-shaped rod (16), second sliding blocks (17), two sliding rods (18), threaded rods (19) and second clamping plates (20), the second V-shaped rods (16) are arranged, the two second V-shaped rods (16) are hinged to the left end and the right end of the fixing frame (1) respectively, the second sliding blocks (17) are arranged at the two ends of the two second V-shaped rods (16) respectively, the two second sliding blocks (17) are hinged to the upper ends of the two second V-shaped rods (16) respectively, the two sliding rods (17) are connected to the lower end faces of the mounting plate (11) in a sliding mode, the two sliding rods (18) are arranged at the upper end faces of the two second V-shaped rods (16) respectively in a sliding mode, the threaded rods (19) are arranged at the two threaded rods (19) are connected to the upper ends of the two second V-shaped rods (16) respectively in a rotating mode, the two threaded rods (19) are connected to the two inner side of the two sliding rods (18) respectively, and the two clamping plates (20) are arranged at the two inner side ends of the two sliding rods (20) respectively in a sliding mode.
4. A heat insulating mechanism and a fixing device according to claim 1, wherein the heat insulating mechanism comprises a scroll spring (21), one end of the scroll spring (21) is fixedly connected to the outer side of an upper end central shaft (9), and the other end of the scroll spring (21) is fixedly connected to the outer side of an upper end supporting frame (8).
5. The heat insulation mechanism and the fixing device according to claim 4, wherein the heat insulation mechanism further comprises a limiting wheel (22), a limiting inserted rod (23) and a return spring (24), the limiting wheel (22) is fixedly connected to the outer side of the central shaft (9) at the upper end, the limiting inserted rod (23) is slidably connected to the inner side of the upper end of the fixing box (2), the upper end of the return spring (24) is fixedly connected to the lower end face of the limiting inserted rod (23), and the lower end of the return spring (24) is fixedly connected to the inner side of the upper end of the fixing box (2).
6. The heat insulation mechanism and the fixing device are characterized in that the heat insulation mechanism further comprises a speed reduction rod (25) and speed reduction springs (26), the speed reduction rod (25) is connected to the inner side of the fixing frame (1) in a sliding mode, the speed reduction rod (25) abuts against the lower end of the filter screen (10) on the outer side of the central shaft (9) at the lower end, two speed reduction springs (26) are arranged, the upper ends of the two speed reduction springs (26) are fixedly connected to the lower end face of the speed reduction rod (25), and the lower ends of the two speed reduction springs (26) are fixedly connected to the inner side of the fixing frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421693342.1U CN222424436U (en) | 2024-07-17 | 2024-07-17 | A heat insulation mechanism and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421693342.1U CN222424436U (en) | 2024-07-17 | 2024-07-17 | A heat insulation mechanism and fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222424436U true CN222424436U (en) | 2025-01-28 |
Family
ID=94355917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421693342.1U Active CN222424436U (en) | 2024-07-17 | 2024-07-17 | A heat insulation mechanism and fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222424436U (en) |
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2024
- 2024-07-17 CN CN202421693342.1U patent/CN222424436U/en active Active
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