CN220888101U - Cutting device for glass fiber cloth - Google Patents
Cutting device for glass fiber cloth Download PDFInfo
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- CN220888101U CN220888101U CN202322572173.8U CN202322572173U CN220888101U CN 220888101 U CN220888101 U CN 220888101U CN 202322572173 U CN202322572173 U CN 202322572173U CN 220888101 U CN220888101 U CN 220888101U
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- guillotine
- workbench
- glass fiber
- fiber cloth
- cutting device
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- 238000005520 cutting process Methods 0.000 title claims abstract description 48
- 239000004744 fabric Substances 0.000 title claims abstract description 46
- 239000003365 glass fiber Substances 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003973 paint Substances 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model relates to a glass fiber cloth cutting device which comprises a workbench, wherein a guillotine is arranged on the workbench, the guillotine is perpendicular to the length direction of the workbench, one end of the guillotine is a mounting end, the other end of the guillotine is provided with a handle to form a free end, the guillotine is rotatably arranged on the workbench through the mounting end, a labor-saving mechanism is further arranged at any side of the workbench corresponding to the position of the guillotine, the labor-saving mechanism comprises a force application end and a counterweight end, the force application end is connected with the guillotine, the force application end is used for driving the guillotine to rotate, and the counterweight end is used for providing tension force so that the force application end drives the guillotine to rotate. According to the utility model, the guillotine can be lifted upwards only by controlling the rotation direction of the guillotine or with a small force, the counterweight end can effectively slow down the falling speed of the guillotine, the safety risk during cutting operation is reduced, and the whole device is time-saving and labor-saving, can effectively improve the working efficiency and has good practicability.
Description
Technical Field
The utility model belongs to the technical field of glass fiber cutting equipment, and particularly relates to a glass fiber cloth cutting device.
Background
The glass fiber has the outstanding advantages of high temperature resistance, corrosion resistance, stable size, high dust removal efficiency, good dust stripping performance, low price and the like, so the glass fiber is a relatively common filtering material. Particularly in some furniture processing workshops, which involve many paint spraying processes, paint mist is generally collected by a paint mist collector in order to reduce the influence of paint mist on the environment. The core component of the paint mist collector is a plurality of adsorption columns which are arranged in an array, and glass fibers are common fillers in the adsorption columns.
When the glass fiber cloth roll is used, the glass fiber cloth roll is required to be cut, a traditional method is to use a knife for manual cutting, and firstly, the edge part is irregular and burrs are generated; secondly, work efficiency is low. So, a fiber clipping device as shown in CN208100489U in the prior art is commonly used, a guillotine is arranged on a fixed platform, and the guillotine is rotated to clip the fibers, so as to improve clipping efficiency of staff. The guillotine itself has a certain self weight, typically up to 20kg, and repeatedly rotates the guillotine up to and down thousands of times per day, with a large workload and safety risk, and further improvements are necessary.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide the glass fiber cloth cutting device, which can avoid the problems of laborious use and high safety risk of the existing cutting device and achieve the effect of bringing convenience to workers to safely and efficiently cut the glass fiber cloth.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a glass fiber cloth's cutting device, includes the workstation, is equipped with the hand hay cutter on the workstation, the hand hay cutter is mutually perpendicular with the length direction of workstation, its characterized in that: the utility model discloses a hand hay cutter, including hand hay cutter, hand hay cutter one end is the installation end, and the other end has the handle to constitute the free end, the hand hay cutter passes through the installation end rotatable mounting on the workstation, and the position that arbitrary side of workstation corresponds the hand hay cutter still is equipped with laborsaving mechanism, laborsaving mechanism includes application of force end and counter weight end, application of force end links to each other with the hand hay cutter, and application of force end is used for driving the hand hay cutter and rotates, and counter weight end utilizes self weight to pass through all the time the application of force end provides the effort of upwards lifting for the hand hay cutter.
The labor-saving mechanism is arranged on one side of the workbench close to the mounting end of the guillotine;
The labor-saving mechanism comprises a vertical installation frame, a fixed pulley is installed at the top end of the installation frame, a rope is wound on the fixed pulley, one end of the rope extends downwards and is connected with a balancing weight to form a balancing weight end, and the other end of the rope is formed into a force application end and is connected to a position deviated to the free end of the guillotine.
Further, the balancing weight comprises a balancing weight tank loaded with a weight, and the top end of the balancing weight tank is connected with the rope; the weight of the heavy object in the counterweight tank is matched with the weight of the guillotine, when the counterweight tank moves downwards, the free end of the guillotine is driven by the force application end to lift up so as to place glass fiber cloth to be cut between the guillotine and the workbench, and when the free end of the guillotine rotates downwards to cut, the counterweight tank moves upwards.
Further, the counterweight tank is also connected with a limiting assembly, and the limiting assembly is used for limiting the lowest point position of the vertical movement of the counterweight tank.
Further, spacing subassembly includes spacing rope, be equipped with convex spacing portion on the mounting bracket, spacing rope's one end links to each other with the counter weight jar, and the other end is walked around link to each other with the counter weight jar behind the spacing portion, spacing rope is located when spacing portion, the counter weight jar is located the minimum in order to realize restricting the counter weight jar and continue the downward movement.
Further, the cutting groove is vertically formed in the position, corresponding to the falling position of the guillotine, on the workbench in a penetrating manner, the mounting end of the guillotine is rotatably connected to one end of the cutting groove, and when the guillotine rotates to the lowest point, the cutting edge of the guillotine can be positioned in the cutting groove.
Further, a measuring ruler is arranged at one side edge of the workbench, and the length direction of the measuring ruler is consistent with the length direction of the workbench; one end of the measuring ruler, which is close to the guillotine, is a 0 scale mark.
Further, a positioning mechanism is arranged on one side of the guillotine on the workbench; the positioning mechanism comprises a positioning rod arranged on the workbench, the positioning rod is arranged in parallel with the guillotine, the positioning rod can slide along the length direction of the measuring ruler, and the two ends of the positioning rod are respectively provided with a fastener so as to fix the positioning rod with the workbench.
Further, an unreeling mechanism is arranged on the other side of the guillotine on the workbench;
The unreeling mechanism comprises a support and cloth rollers, wherein the support and the cloth rollers are arranged on two sides of the workbench, a placement notch is formed in the top end of the support, two ends of each cloth roller are correspondingly arranged at the placement notch of the support at two ends, and the axial direction of each cloth roller is parallel to the guillotine.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the glass fiber cloth cutting device, in order to reduce the load of repeated pulling of the guillotine by workers as much as possible, the labor-saving mechanism is arranged at the side edge of the workbench corresponding to the position of the guillotine, the force application end is connected with the free end (namely the cutter handle) of the guillotine, the counterweight end provides tension and drives the guillotine to rotate through the force application end, so that the guillotine can be lifted upwards only by controlling the rotation direction of the guillotine or with small force so as to place glass fiber cloth to be cut between the guillotine and the workbench, the counterweight end can effectively slow down the falling speed of the guillotine, the safety risk during cutting operation is reduced, the whole device is time-saving and labor-saving, the working efficiency can be effectively improved, and the glass fiber cloth cutting device has good practicability.
2. According to the glass fiber cloth cutting device, the lever principle is utilized and the fixed pulley block is combined, so that labor-saving operation of the guillotine is realized; the positioning mechanism and the measuring ruler can ensure the cutting accuracy, and have very good practicability.
Drawings
FIG. 1 is a schematic plan view of a cutting device for glass fiber cloth according to an embodiment;
Fig. 2 is a schematic structural diagram of a cutting device for glass fiber cloth according to an embodiment (excluding a positioning mechanism);
The device comprises a workbench 1, a shearing groove 11, a guillotine 2, a force application end 301, a counterweight end 302, a labor-saving mechanism 3, a mounting frame 31, a fixed pulley 32, a rope 33, a counterweight tank 34, a limiting rope 35, a positioning rod 41, a fastening piece 42, a measuring scale 5, a bracket 61 and a cloth roller 62.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
Referring to fig. 1 and 2, a cutting device for glass fiber cloth in a specific embodiment includes a workbench 1, wherein a guillotine 2 is arranged on the workbench 1, the guillotine 2 is perpendicular to the length direction of the workbench 1, and a positioning mechanism is arranged at any end of the workbench 1 away from the guillotine 2; one end of the guillotine 2 is a mounting end, the other end of the guillotine 2 is provided with a handle to form a free end, the guillotine 2 is rotatably mounted on the workbench 1 through the mounting end, and a labor-saving mechanism 3 is arranged at any side of the workbench 1 corresponding to the position of the guillotine 2; the labor-saving mechanism 3 comprises a force application end 301 and a counterweight end 302, the force application end 301 is connected with the guillotine 2, the force application end 301 is used for driving the guillotine 2 to rotate, and the counterweight end 302 is used for providing pulling force so that the force application end 301 drives the guillotine 2 to rotate.
In order to reduce the load of repeated lifting of the guillotine 2 by a worker as much as possible, the cutting device of the glass fiber cloth of the embodiment is provided with a labor-saving mechanism 3 at the side edge of the workbench 1 corresponding to the guillotine 2, a force application end 301 is connected with the free end (namely a cutter handle) of the guillotine 2, and a counterweight end 302 provides a pulling force and drives the guillotine 2 to rotate through the force application end 301; like this, the staff only need to control the pivoted direction of hand hay cutter 2 or with very little power just can upwards lift the hand hay cutter so that place the glass fiber cloth that waits to cut between hand hay cutter 2 and workstation 1, the setting of counter weight end 302 can effectively slow down the speed that hand hay cutter 2 falls down, reduces the security risk when cutting the operation, and whole device labour saving and time saving can effectively improve work efficiency, has fine practicality.
It can be understood that if the guillotine 2 is not restricted by the counterweight end 302 and falls down by self weight, the speed is high, and there is a high safety risk, so in practical operation, a worker can apply force to control the falling speed of the guillotine when the guillotine falls down, and the same physical effort is consumed, so the arrangement of the counterweight end 302 can effectively ensure the safety of the worker during cutting operation and achieve the labor-saving effect.
With continued reference to fig. 1 and 2, the labor-saving mechanism 3 is disposed on one side of the workbench 1 near the mounting end of the guillotine 2; the labor-saving mechanism 3 comprises a vertical mounting frame 31, a fixed pulley 32 is mounted at the top end of the mounting frame 31, a rope 33 is wound on the fixed pulley 32, one end of the rope 33 extends downwards and is connected with a balancing weight to form a balancing weight end 302, and the other end of the rope 33 is formed into a force application end 301 and is connected to a position biased to the free end of the guillotine 2.
Thus, the labor-saving and safe operation of the guillotine 2 is realized by the fixed pulley 32 and the fixed pulley rope. The labor-saving mechanism 3 is arranged on one side of the workbench 1 close to the mounting end of the guillotine 2, and can not cause any obstruction to the operation of the worker on the other side of the workbench.
In implementation, the labor-saving mechanism 3 may be a compression spring arranged between the guillotine 2 and the workbench 1, or a tension spring arranged between the guillotine 2 and the mounting frame 31, so that the guillotine 2 can reset after cutting; however, the actual working scene of the whole device is considered, the spring is easy to lose efficacy, and the service life is short; the specific structural form of the labor-saving mechanism 3 in the utility model is designed.
Wherein the balancing weight comprises a balancing weight tank 34 loaded with a weight, and the top end of the balancing weight tank 34 is connected with a rope 33; the weight of the heavy object in the counterweight tank 34 is matched with the weight of the guillotine 2, when the counterweight tank 34 moves downwards, the free end of the guillotine 2 is driven by the force application end 301 to lift up so as to place glass fiber cloth to be cut between the guillotine 2 and the workbench 1, and when the free end of the guillotine 2 rotates downwards to cut, the counterweight tank 34 moves upwards;
A limiting assembly is also connected to the counterweight tank 34, and is configured to limit the lowest point of vertical movement of the counterweight tank 34.
When the weight of the whole balancing weight is the same as the dead weight of the guillotine 2, the operator only needs to control the rotation direction of the guillotine 2, and the angle of lifting the guillotine 2 can be adjusted conveniently.
It will be appreciated that the guillotine 2 need not be fully opened and only lifted to a certain height to allow the glass fibres to be arranged under the blade for shearing. Therefore, the upward lifting angle of the guillotine 2 needs to be controlled, so that the working efficiency can be improved, the operation of workers is convenient, and the safety risk can be reduced; so the limiting component is arranged to prevent the cutter back of the guillotine 2 from being contacted with the mounting frame 31 to damage the device when the counterweight tank 34 descends to the lowest point. In implementation, the lifting angle of the guillotine 2 is 45-60 degrees.
In this embodiment, the counterweight is a counterweight tank 34 loaded with sand, which is convenient to obtain and has very low cost.
Wherein, spacing subassembly includes spacing rope 35, be equipped with convex spacing portion on the mounting bracket 31, spacing rope 35's one end links to each other with counterweight tank 34, and the other end walks around spacing portion back links to each other with counterweight tank 34, counterweight tank 34 is located the minimum when hanging in on spacing portion through spacing rope 35 to the restriction counterweight tank 34 continues the downward movement.
In practice, as shown in fig. 2, the vertical section of the mounting frame 31 near the workbench 1 is welded and fixed with the workbench 1, so as to form the limit part.
The cutting groove 11 is vertically and penetratingly formed in the position, corresponding to the falling position of the guillotine 2, on the workbench 1, the mounting end of the guillotine 2 is rotatably connected to one end of the cutting groove 11, and when the guillotine 2 rotates to the lowest point, the cutting edge of the guillotine 2 can be located in the cutting groove 11.
In this way, the cut chips can be collected by the cutting slot 11; meanwhile, the rotary installation position of the guillotine 2 can be hidden in the shearing groove 11, and the cutting edge of the guillotine 2 is also hidden in the shearing groove 11, so that the safety risk is reduced.
The edge of one side of the workbench 1 is provided with a measuring ruler 5, and the length direction of the measuring ruler 5 is consistent with the length direction of the workbench 1; one end of the measuring ruler 5, which is close to the guillotine 2, is a scale mark of 0.
Therefore, the length of blanking can be determined through the measuring ruler, so that cutting is more accurate.
The positioning mechanism comprises a positioning rod 41 arranged on the workbench 1, the positioning rod 41 is arranged in parallel with the guillotine 2, the positioning rod 41 can slide along the length direction of the measuring ruler 5, and the two ends of the positioning rod 41 are respectively provided with a fastener 42 so as to fix the positioning rod 41 with the workbench 1.
Thus, the positioning rod 41 can be abutted against the glass fiber cloth and used in combination with the measuring scale 5, so that the contact of workers with the glass fiber cloth is reduced as much as possible. In practice, the fastening member 42 may be a stud nut, and when the positioning rod 41 needs to be adjusted, the nut is unscrewed to adjust.
Wherein, the other side of the workbench 1, which is positioned on the guillotine 2, is also provided with an unreeling mechanism;
The unreeling mechanism comprises a cloth roller 62 and brackets 61 arranged on two sides of the workbench 1, wherein a placement notch is formed in the top end of each bracket 61, two ends of the cloth roller 62 are correspondingly arranged in the placement notch of each bracket 61 at two ends, and the axial direction of the cloth roller 62 is perpendicular to the length direction of the workbench 1.
Thus, the unreeling mechanism is convenient for placing the roller wound with the glass fiber cloth.
The glass fiber cloth cutting device is low in manufacturing cost and convenient in raw material acquisition; when the device is in actual use, a worker only needs to hold the cutter handle of the guillotine 2, and can easily lift and put down the guillotine 2 through the labor-saving mechanism 3, so that the glass fiber cloth is cut, and the positioning mechanism and the measuring ruler 5 can ensure the cutting accuracy and have very good practicability.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. The utility model provides a glass fiber cloth's cutting device, includes the workstation, is equipped with the hand hay cutter on the workstation, the hand hay cutter is mutually perpendicular with the length direction of workstation, its characterized in that: one end of the guillotine is a mounting end, the other end of the guillotine is provided with a handle to form a free end, the guillotine is rotatably mounted on the workbench through the mounting end, a labor-saving mechanism is further arranged at any side of the workbench corresponding to the position of the guillotine, the labor-saving mechanism comprises a force application end and a counterweight end, the force application end is connected with the guillotine, the force application end is used for driving the guillotine to rotate, and the counterweight end is used for providing pulling force so that the force application end drives the guillotine to rotate.
2. A cutting device for glass fiber cloth according to claim 1, wherein: the labor-saving mechanism is arranged on one side of the workbench close to the mounting end of the guillotine;
The labor-saving mechanism comprises a vertical installation frame, a fixed pulley is installed at the top end of the installation frame, a rope is wound on the fixed pulley, one end of the rope extends downwards and is connected with a balancing weight to form a balancing weight end, and the other end of the rope is formed into a force application end and is connected to a position deviated to the free end of the guillotine.
3. A cutting device for glass fiber cloth according to claim 2, wherein: the balancing weight comprises a balancing weight tank loaded with a weight, and the top end of the balancing weight tank is connected with the rope; the weight of the heavy object in the counterweight tank is matched with the weight of the guillotine, when the counterweight tank moves downwards, the free end of the guillotine is driven by the force application end to lift up so as to place glass fiber cloth to be cut between the guillotine and the workbench, and when the free end of the guillotine rotates downwards to cut, the counterweight tank moves upwards.
4. A cutting device for glass fiber cloth according to claim 3, wherein: the counterweight tank is also connected with a limiting assembly, and the limiting assembly is used for limiting the lowest point position of the vertical movement of the counterweight tank.
5. The cutting device for glass fiber cloth according to claim 4, wherein: the limiting assembly comprises a limiting rope, a protruding limiting part is arranged on the mounting frame, one end of the limiting rope is connected with the counterweight tank, the other end of the limiting rope bypasses the limiting part and then is connected with the counterweight tank, and the counterweight tank is located at the lowest point when the limiting rope is hung on the limiting part.
6. A cutting device for glass fiber cloth according to claim 1, wherein: the cutting groove is vertically formed in the position, corresponding to the falling position of the guillotine, of the workbench in a penetrating mode, the mounting end of the guillotine is rotatably connected to one end portion of the cutting groove, and when the guillotine rotates to the lowest point, the cutting edge of the guillotine is located in the cutting groove.
7. A cutting device for glass fiber cloth according to claim 1, wherein: a measuring ruler is arranged at one side edge of the workbench, and the length direction of the measuring ruler is consistent with the length direction of the workbench; one end of the measuring ruler, which is close to the guillotine, is a 0 scale mark.
8. The cutting device for glass fiber cloth according to claim 7, wherein: a positioning mechanism is further arranged on one side of the guillotine on the workbench;
The positioning mechanism comprises a positioning rod arranged on the workbench, the positioning rod is arranged in parallel with the guillotine, the positioning rod can slide along the length direction of the measuring ruler, and the two ends of the positioning rod are respectively provided with a fastener so as to fix the positioning rod with the workbench.
9. The cutting device for glass fiber cloth according to claim 8, wherein: an unreeling mechanism is arranged on the workbench and positioned on the other side of the guillotine;
The unreeling mechanism comprises a cloth roller and supports arranged on two sides of the workbench, wherein a placement notch is formed in the top end of each support, two ends of the cloth roller are correspondingly arranged in the placement notch of each support, and the axial direction of the cloth roller is perpendicular to the length direction of the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322572173.8U CN220888101U (en) | 2023-09-21 | 2023-09-21 | Cutting device for glass fiber cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322572173.8U CN220888101U (en) | 2023-09-21 | 2023-09-21 | Cutting device for glass fiber cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220888101U true CN220888101U (en) | 2024-05-03 |
Family
ID=90840972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322572173.8U Active CN220888101U (en) | 2023-09-21 | 2023-09-21 | Cutting device for glass fiber cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220888101U (en) |
-
2023
- 2023-09-21 CN CN202322572173.8U patent/CN220888101U/en active Active
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