CN222570421U - Shot blasting machine with protection function - Google Patents
Shot blasting machine with protection function Download PDFInfo
- Publication number
- CN222570421U CN222570421U CN202421144058.9U CN202421144058U CN222570421U CN 222570421 U CN222570421 U CN 222570421U CN 202421144058 U CN202421144058 U CN 202421144058U CN 222570421 U CN222570421 U CN 222570421U
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- China
- Prior art keywords
- fixedly connected
- box
- blasting machine
- shot blasting
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005422 blasting Methods 0.000 title claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 abstract description 11
- 239000002893 slag Substances 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 239000010814 metallic waste Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Cleaning In General (AREA)
Abstract
The utility model relates to the technical field of shot blasting machines and discloses a shot blasting machine with a protection function, which comprises a processing box, wherein a box door is hinged to the front side of the processing box, a shot blasting device is arranged on the left side of the processing box, a motor is fixedly connected to the top of the processing box, a turntable is fixedly connected to the output end of the motor, a hook is fixedly connected to the bottom of the turntable, a mounting box is fixedly connected to the rear side of the processing box, a fan is arranged on the rear side of the mounting box, a mounting handle is connected to the middle of the mounting box in a sliding manner, and a filter screen I is fixedly connected to the bottom of the mounting handle. According to the utility model, the dust collection pipe is driven to work by starting the fan, dust and metal slag in the shot blasting machine are collected, the slag is filtered out through the first filter screen, so that the quick separation of the shot and the slag is realized, and then the first filter screen is quickly disassembled by pulling the pull rod to drive the baffle to extrude the first spring, so that the excessive accumulation of the metal slag is prevented, and the filter screen is blocked.
Description
Technical Field
The utility model relates to the technical field of shot blasting machines, in particular to a shot blasting machine with a protection function.
Background
Shot blasting machines are surface treatment equipment that are commonly used for cleaning, removing surface dirt, scale, rust, and increasing surface roughness. The surface of a workpiece is impacted and polished by high-speed casting of metal particles or other abrasive materials (such as steel shots, sand and the like) so as to achieve the purposes of cleaning, enhancing adhesive force or improving surface quality, and high-speed moving parts and particles generated during the operation of the shot blasting machine can damage or abrade equipment, such as abrasion of shot blasting wheels, damage of the surface of the equipment and the like, and corresponding protection functions are required to be arranged for ensuring the stable operation of the shot blasting machine and prolonging the service life of the shot blasting machine.
In the prior art, when removing surface corrosion to metal material, generally launch the shot through the shot-blasting machine and polish metal surface, shot and waste residue fall to the collecting vat of shot-blasting machine bottom after throwing the shot, but the dust removal is not thorough, be difficult to thoroughly separate shot and waste residue, along with the continuous accumulation of waste residue, the degree of difficulty of clearance and maintenance also can increase gradually, probably need to shut down the clearance more frequently, reduced the overall operation efficiency of equipment, put forward a shot-blasting machine with safeguard function for this and solve above-mentioned problem.
Disclosure of utility model
In order to make up for the defects, the utility model provides a shot blasting machine with a protection function, and aims to solve the problem that the shot blasting machine in the prior art cannot thoroughly separate shots from waste residues.
In order to achieve the purpose, the shot blasting machine with the protection function comprises a machining box, wherein a box door is hinged to the front side of the machining box, a shot blasting device is arranged on the left side of the machining box, a motor is fixedly connected to the top of the machining box, a rotary table is fixedly connected to the output end of the motor, a hook is fixedly connected to the bottom of the rotary table, a mounting box is fixedly connected to the rear side of the machining box, a fan is arranged on the rear side of the mounting box, a mounting handle is slidably connected to the middle of the mounting box, a first filter screen is fixedly connected to the bottom of the mounting handle, a frame body is fixedly connected to the two sides of the outer portion of the mounting box, a pull rod is slidably connected to the inner portion of the frame body, a baffle is fixedly connected to one side of the outer portion of the pull rod, a first spring is sleeved on the other side of the outer portion of the pull rod, a dust suction pipe is fixedly connected to the right side of the mounting box, a collection port is fixedly connected to one end of the dust suction pipe, the top of the collection port is fixedly connected to the inner top wall of the machining box, a second filter screen is fixedly connected to the inner portion of the collection port, a second filter screen is fixedly connected to the right side of the inner portion of the mounting port, a buffer box is arranged on the right side of the inner portion of the machining box, and a buffer box is arranged below the filter screen.
As a further description of the above technical solution:
The buffer assembly comprises a sleeve and a mounting groove, wherein the right end of the sleeve is fixedly connected with the inner wall of the processing box, the right side of the mounting groove is fixedly connected with the inner wall of the processing box, the second spring is fixedly connected inside the sleeve, the second spring is sleeved outside the telescopic rod, the fixing rod is fixedly connected inside the mounting groove, the third spring is sleeved at two ends of the fixing rod, the two sliding blocks are fixedly connected to one opposite side of the third spring, the two sliding blocks are fixedly connected with connecting rods in a rotating mode, and the two protection plates are fixedly connected to the left sides of the connecting rods.
As a further description of the above technical solution:
The processing bottom of the case portion all is fixedly connected with support column all around, processing bottom of the case portion fixedly connected with discharge gate, chamber door front side edge fixedly connected with handle, pull rod side fixedly connected with adjustment handle.
As a further description of the above technical solution:
The baffle is externally connected to the inside of the frame in a sliding manner.
As a further description of the above technical solution:
One end of the spring is fixedly connected to the middle of the baffle plate, and the other end of the spring is fixedly connected to the inner wall of the frame body.
As a further description of the above technical solution:
One end of the pull rod penetrates through the mounting box and is inserted into the mounting handle.
As a further description of the above technical solution:
the inside sliding connection of slider is in the dead lever is outside.
As a further description of the above technical solution:
One end of the second spring is fixedly connected to the left end of the sleeve, and the other end of the second spring is fixedly connected to the right side of the protection plate.
The utility model has the following beneficial effects:
1. According to the utility model, the dust collection pipe is driven to work by starting the fan, dust and metal slag in the shot blasting machine are collected, the slag is filtered out through the first filter screen, so that the quick separation of the shot and the slag is realized, and then the first filter screen is quickly disassembled by pulling the pull rod to drive the baffle to extrude the first spring, so that the excessive accumulation of the metal slag is prevented, and the filter screen is blocked.
2. According to the utility model, external force received by the periphery is transmitted to the sleeve and the telescopic rod through the protection plate, so that the force received by the periphery is eliminated by the compression spring III, and then the force received by the middle part is transmitted to the connecting rod through the protection plate, so that the sliding block is driven to slide and squeeze the spring III to eliminate the force received by the middle part, thereby effectively reducing the damage risk caused by the impact of the shot ejected at high speed on the equipment shell, and prolonging the service life of the equipment.
Drawings
Fig. 1 is a schematic perspective view of a shot blasting machine with protection function according to the present utility model;
Fig. 2 is a schematic structural diagram of a blower of a shot blasting machine with protection function according to the present utility model;
fig. 3 is a schematic structural view of a protection plate of a shot blasting machine with protection function according to the present utility model;
fig. 4 is a schematic structural diagram of a connecting rod of a shot blasting machine with protection function according to the present utility model;
fig. 5 is a schematic structural diagram of a first filter screen of a shot blasting machine with protection function according to the present utility model;
fig. 6 is a schematic structural diagram of a pull rod of a shot blasting machine with protection function according to the present utility model.
Legend description:
1. A processing box; 2, a box door, 3, a shot blasting machine, 4, a motor, 5, a rotary table, 6, a hook, 7, a mounting box, 8, a fan, 9, a mounting handle, 10, a first filter screen, 11, a dust suction pipe, 12, a collecting port, 13, a second filter screen, 14, a frame body, 15, a pull rod, 16, a baffle, 17, a first spring, 18, a sleeve, 19, a telescopic rod, 20, a second spring, 21, a mounting groove, 22, a fixing rod, 23, a third spring, 24, a sliding block, 25, a connecting rod, 26, a protection plate, 27, a collecting box, 28, a supporting column, 29, a discharge port, 30, a handle and 31, and an adjusting handle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2, 5 and 6, one embodiment provided by the present utility model is: the shot blasting machine with the protection function comprises a processing box 1, a box door 2 is hinged at the front side of the processing box 1, a shot blasting device 3 is arranged at the left side of the processing box 1, a motor 4 is fixedly connected at the top of the processing box 1, a turntable 5 is fixedly connected at the output end of the motor 4, a hook 6 is fixedly connected at the bottom of the turntable 5, a mounting box 7 is fixedly connected at the rear side of the processing box 1, a fan 8 is arranged at the rear side of the mounting box 7, a mounting handle 9 is slidably connected at the middle part of the mounting box 7, a filter screen 10 is fixedly connected at the bottom of the mounting handle 9, a frame 14 is fixedly connected at both sides of the outer part of the mounting box 7, a pull rod 15 is slidably connected inside the frame 14, a baffle 16 is fixedly connected at one side of the outer part of the pull rod 15, a spring 17 is sleeved at the other side of the outer part of the pull rod 15, the right side fixedly connected with dust absorption pipe 11 of installation case 7, dust absorption pipe 11 is kept away from installation case 7 one end fixedly connected with collection mouth 12, collection mouth 12 top fixedly connected with is at processing incasement roof, collection mouth 12 inside fixedly connected with filter screen two 13, processing incasement portion right side is provided with buffer assembly, processing case 1 below is provided with collecting box 27, equal fixedly connected with support column 28 all around the processing case 1 bottom, processing case 1 bottom fixedly connected with discharge gate 29, the front side limit fixedly connected with handle 30 of chamber door 2, baffle 16 outside sliding connection is inside frame 14, spring one 17 one end fixedly connected at baffle 16 middle part, spring one 17 other end fixedly connected at frame 14 inner wall, pull rod 15 one end runs through installation case 7 and peg graft inside installation handle 9.
Specifically, when the metal workpiece needs to be derusted, the worker first pulls the handle 30 easily, the box door 2 is opened smoothly, then, the worker stably hangs the metal workpiece to be processed on the hook 6, then, the motor 4 is started, the turntable 5 starts to rotate stably under the drive of the motor, and then the hook 6 drives the workpiece to rotate, at the moment, the shot blasting machine 3 is started simultaneously, the shot blasting machine releases high-speed shot which can impact the surface of the metal workpiece forcefully, rust and dirt are removed effectively, in order to ensure the efficiency and the cleanliness in the derusting process, the fan 8 is started to drive the dust suction pipe 11 to operate efficiently, the dust suction pipe 11 sucks the mixture of metal waste residues and the shot rapidly along with the operation of the fan 8, in the process, the second filter screen 13 plays a key role, the mixture is filtered finely, and the shot is ensured not to be sucked mistakenly, and the recycling and the waste of the shot are ensured. After the waste residues are filtered by the second filter screen 13, the waste residues are smoothly sucked out through the collecting port 12 and conveyed into the installation box 7, at the moment, the separated pellets fall into the collection box 27 through the discharging port 29, the first filter screen 10 plays a role again, the waste residues are further filtered out, however, the long-time use can cause excessive metal waste residues accumulated on the first filter screen 10, the filtering effect of the waste residues can be influenced, and even the filtering effect is blocked, so that the regular cleaning of the first filter screen 10 is particularly important, a worker only needs to simply pull the pull rod 15, the baffle 16 moves synchronously and presses the first spring 17, when the pull rod 15 is completely separated from the installation handle 9, the disassembling work of the first filter screen 10 is easily completed, at the moment, the worker can thoroughly clean the first filter screen 10, ensure good filtering performance of the first filter screen 10, after the cleaning is completed, the first filter screen 10 is put into the installation box 7 again, and the pull rod 15 is reinserted into the installation handle 7. At this time, the first spring 17 performs its restoring function, returns to its original state, and pushes the shutter 16, so that the tie rod 15 is tightly inserted into the mounting shank 9. Thus, the reinstallation of the first filter screen 10 is completed smoothly, and the device is restored to the optimal working state again, ready for the next metal rust removal task.
Referring to fig. 1, 3 and 4, the buffer assembly includes sleeve 18 and mounting groove 21, sleeve 18 right-hand member fixed connection is at processing case 1 inner wall, mounting groove 21 right side fixed connection is at processing case 1 inner wall, sleeve 18 inside sliding connection has telescopic link 19, the outside cover of telescopic link 19 is equipped with spring two 20, the inside fixedly connected with dead lever 22 of mounting groove 21, the equal cover in dead lever 22 both ends is equipped with spring three 23, two equal fixedly connected with slider 24 in opposite one side of spring three 23, two slider 24 left sides all rotate and are connected with connecting rod 25, two connecting rod 25 left side fixedly connected with guard plate 26, pull rod 15 side fixedly connected with adjustment handle 31, the inside sliding connection of slider 24 is outside dead lever 22, spring two 20 one end fixed connection is at sleeve 18 left end, spring two 20 other end fixed connection is at guard plate 26 right side.
Specifically, when the shot blasting machine 2 ejects shots at a high speed, the shots continuously impact the equipment shell, which definitely brings about huge impact and stress to the equipment shell, the impact and stress are effectively relieved under the action of the protection plate 26, firstly, when the periphery of the protection plate 26 is impacted by the shots, the force is rapidly dispersed and transferred to the surrounding telescopic rods 19, the telescopic rods 19 are structurally allowed to generate certain telescopic deformation when the force is applied to the telescopic rods, so that the impact force is absorbed and dispersed, meanwhile, the second springs 20 play a vital role, and the second springs 20 are gradually compressed along with the telescopic rods 19, so that the impact force from the shots is further absorbed and eliminated by utilizing the elastic deformation capacity of the second springs. When the middle part is impacted, the protection plate 26 transmits force to the connection rod 25. The connecting rod 25 is tightly connected with the slider 24 so that it drives the slider 24 to slide outside the fixing rod 22. The sliding motion not only disperses impact force, but also compresses the third spring 23 in the sliding process of the sliding block 24, and the third spring 23 also effectively eliminates the impact force received by the middle part by utilizing the excellent elastic deformation capability of the third spring, so that the equipment shell is further protected from damage.
Working principle: when the metal workpiece is required to be derusted, a worker pulls the handle 30 to open the box door 2, hangs the workpiece on the hook 6, the starting motor 4 drives the turntable 5 to rotate, then drives the workpiece to rotate through the hook 6, simultaneously starts the shot blasting device 3, and impacts the surface of the metal workpiece through the shot ejected at high speed to derusting, so as to quickly separate the metal waste residues from the shot, at the moment, the fan 8 is started to drive the dust collection pipe 11 to work, under the action of the second filter screen 13, the shot can be prevented from being absorbed, further the waste residues are sucked out through the collecting port 12, the metal waste residues are conveyed into the installation box 7 and filtered out through the first filter screen 10, the separated shot can drop into the collecting box 27 through the discharging port 29 at the moment, in order to prevent the metal waste residues from being accumulated excessively and blocking the filter screen, therefore, the filter screen I10 needs to be cleaned regularly, the pull rod 15 is pulled to drive the baffle 16 to synchronously move and squeeze the spring I17 until the pull rod 15 is completely separated from the inside of the mounting handle 9, the filter screen I10 can be cleaned at the moment, the filter screen I10 is placed into the mounting box 7 after the cleaning is finished, the pull rod 15 is inserted into the mounting handle 7, the spring I17 is reset to restore the original long pushing baffle 16 to enable the pull rod 15 to be inserted into the inside of the mounting handle 9, the mounting is finished, when a shot ejected by the shot blasting machine 2 at high speed impacts the equipment shell for a long time, the protection plate 26 can transmit the force born by the periphery to the telescopic rods 19 and the springs II 20 at the periphery, the force born by the periphery is eliminated through the compression of the springs II 20, meanwhile, the protection plate 26 transmits the force born by the middle part to the connecting rod 25, which in turn drives the slide 24 to slide outside the fixed rod 22 and compresses the third spring 23 so as to eliminate the forces exerted on the middle.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.
Claims (8)
1. The shot blasting machine with the protection function comprises a processing box (1), and is characterized in that a box door (2) is hinged to the front side of the processing box (1), a shot blasting machine (3) is arranged on the left side of the processing box (1), a motor (4) is fixedly connected to the top of the processing box (1), a turntable (5) is fixedly connected to the output end of the motor (4), a hook (6) is fixedly connected to the bottom of the turntable (5), a mounting box (7) is fixedly connected to the rear side of the processing box (1), a fan (8) is arranged on the rear side of the mounting box (7), a mounting handle (9) is connected to the middle of the mounting box (7) in a sliding manner, a filter screen I (10) is fixedly connected to the bottom of the mounting handle (9), a pull rod (15) is fixedly connected to the two sides of the outer part of the mounting box (7), a baffle (16) is fixedly connected to one side of the outer part of the pull rod (15), a spring I (17) is sleeved on the other side of the outer part of the pull rod (15), a dust collection pipe (11) is fixedly connected to the top wall (12) of the dust collection pipe (12) and is fixedly connected to the top wall (12), the filter screen II (13) is fixedly connected to the inside of the collecting port (12), a buffer assembly is arranged on the right side inside the processing box (1), and a collecting box (27) is arranged below the processing box (1).
2. The shot blasting machine with protection function according to claim 1, wherein the buffer assembly comprises a sleeve (18) and a mounting groove (21), the right end of the sleeve (18) is fixedly connected with the inner wall of the processing box (1), the right side of the mounting groove (21) is fixedly connected with the inner wall of the processing box (1), a telescopic rod (19) is slidably connected inside the sleeve (18), a spring II (20) is sleeved outside the telescopic rod (19), a fixing rod (22) is fixedly connected inside the mounting groove (21), springs III (23) are sleeved at two ends of the fixing rod (22), sliding blocks (24) are fixedly connected to opposite sides of the springs III (23), connecting rods (25) are rotatably connected to the left sides of the two sliding blocks (24), and protection plates (26) are fixedly connected to the left sides of the two connecting rods (25).
3. The shot blasting machine with the protection function according to claim 2, wherein support columns (28) are fixedly connected to the periphery of the bottom of the processing box (1), a discharge hole (29) is fixedly connected to the bottom of the processing box (1), a handle (30) is fixedly connected to the front side edge of the box door (2), and an adjusting handle (31) is fixedly connected to the side end of the pull rod (15).
4. A blasting machine with protection function according to claim 1, wherein the baffle (16) is slidingly connected inside the frame (14).
5. The shot blasting machine with the protection function according to claim 1, wherein one end of the first spring (17) is fixedly connected to the middle of the baffle plate (16), and the other end of the first spring (17) is fixedly connected to the inner wall of the frame body (14).
6. A shot blasting machine with protection function according to claim 1, wherein one end of the pull rod (15) penetrates through the mounting box (7) and is inserted into the mounting handle (9).
7. A shot-blasting machine with protection function according to claim 2, characterized in that the inside of the slide block (24) is slidingly connected to the outside of the fixed rod (22).
8. The shot blasting machine with the protection function according to claim 2, wherein one end of the second spring (20) is fixedly connected to the left end of the sleeve (18), and the other end of the second spring (20) is fixedly connected to the right side of the protection plate (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421144058.9U CN222570421U (en) | 2024-05-24 | 2024-05-24 | Shot blasting machine with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421144058.9U CN222570421U (en) | 2024-05-24 | 2024-05-24 | Shot blasting machine with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222570421U true CN222570421U (en) | 2025-03-07 |
Family
ID=94784977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421144058.9U Active CN222570421U (en) | 2024-05-24 | 2024-05-24 | Shot blasting machine with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222570421U (en) |
-
2024
- 2024-05-24 CN CN202421144058.9U patent/CN222570421U/en active Active
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