CN223091642U - Core cutting and sample preparing equipment for engineering quality detection - Google Patents
Core cutting and sample preparing equipment for engineering quality detection Download PDFInfo
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- CN223091642U CN223091642U CN202422251057.0U CN202422251057U CN223091642U CN 223091642 U CN223091642 U CN 223091642U CN 202422251057 U CN202422251057 U CN 202422251057U CN 223091642 U CN223091642 U CN 223091642U
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Abstract
The utility model relates to the technical field of engineering quality detection, and provides core cutting and sample preparing equipment for engineering quality detection, which comprises a base, clamping assemblies symmetrically assembled at the top end of one side of the base, a fixing frame fixedly connected to the top end of the base, a moving assembly assembled at the inner top wall of the fixing frame, an output end of a hydraulic cylinder fixedly connected with a mounting frame, an output end of a driving motor penetrating through the mounting frame and fixedly connected with a rotating rod through a coupler, a cutting knife arranged on the surface of the rotating rod, a length fixing assembly assembled at the other side of the top end of the base, and a length fixing plate capable of sliding, wherein the distance between one side of the length fixing plate and one side of the fixing frame can be adjusted according to the length of a sample to be cut, and then the sample can be cut after one end is directly attached to the length fixing plate, so that the length fixing cutting with the same length each time can be realized, errors observed by naked eyes or complicated and inconvenience in manual measurement each time can be avoided, and the corresponding processing efficiency can be improved.
Description
Technical Field
The utility model relates to the technical field of engineering quality detection, in particular to core cutting and sample preparation equipment for engineering quality detection.
Background
The engineering quality detection means that an engineering entity is detected, and the result is compared with a specified requirement to determine whether the quality of the engineering entity is qualified or not, and in the engineering quality detection process, a corresponding engineering sample is often required to be cut and sampled so as to facilitate further detection operation.
Through searching, the prior patent (bulletin number: CN 217738691U) discloses a core cutting and sample preparing device for engineering quality detection, which comprises a placing bottom plate, wherein one end of the top of the placing bottom plate is fixedly provided with a mounting frame, the top end of the inner side of the mounting frame is provided with a translation mechanism, the bottom end of the translation mechanism is provided with a cutting mechanism, and the outer side of the mounting frame is provided with a pressing mechanism for pressing and fixing a sample. According to the utility model, the driving motor can drive the screw rod to rotate, so that the sliding seat drives the mounting seat and the cutting motor to horizontally move, and the blade is further used for cutting samples along the horizontal direction, so that samples with different length and side lengths can be cut, and the application range is wide.
However, in the above scheme, when the core is cut and prepared, the staff is required to judge the length of the cut sample by himself, the error of naked eye judgment is large, and if manual measurement is required each time, the labor intensity of the staff is increased, and the corresponding working efficiency of core cutting and sample preparation is reduced, so that the use is inconvenient.
In view of the above, the utility model provides a core cutting and sample preparing device for engineering quality detection.
Disclosure of utility model
The utility model provides core cutting and sample preparing equipment for engineering quality detection, which solves the problem that the length of a sample is inconvenient to cut by a side leakage method in the related technology.
The core cutting sample preparation device for engineering quality detection comprises a base, clamping assemblies symmetrically assembled at the top end of one side of the base, a fixing frame fixedly connected to the top end of the base, a controller fixedly connected to one side of the fixing frame, a moving assembly assembled on the inner top wall of the fixing frame and used for realizing horizontal adjustment of a cutting position, a hydraulic cylinder arranged at the bottom end of the moving assembly, an output end of the hydraulic cylinder is fixedly connected with a mounting frame, a driving motor fixedly connected to the lower end of one side of the mounting frame, the output end of the driving motor penetrates through the mounting frame and is fixedly connected with a rotating rod through a coupler, a cutting knife is arranged on the surface of the rotating rod, an installation assembly assembled on the surface of the rotating rod and used for realizing disassembly and fixation of the cutting knife, and a fixed-length assembly assembled on the other side of the top end of the base and used for realizing fixed-length cutting of the sample.
The fixed-length assembly comprises a fixed groove formed in the middle position of the other side of the top end of the base, a fixed-length threaded rod rotationally connected to the inner wall of the fixed groove, a fixed-length threaded block connected to the surface of the fixed-length threaded rod in a threaded mode, a fixed-length plate fixedly connected to the top end of the fixed-length threaded block, an indication block fixedly connected to one end of the fixed-length plate, a scale indication strip fixedly connected to the other side of the top end of the base, and a rotating handle rotationally connected to the other side of the base, wherein one end of the rotating handle is fixedly connected with one end of the fixed-length threaded rod.
Preferably, a sliding groove is formed in the other side of the top end of the base, and the bottom end of the fixed-length plate is fixedly connected with a sliding block which is in sliding fit with the inside of the sliding groove.
Preferably, the mounting assembly comprises a clamping groove formed in one side of the surface of the rotating rod, a mounting plate connected to the surface of the rotating rod in a sliding mode, a clamping block fixedly connected to the inner wall of the mounting plate, a mounting groove formed in the surface of the mounting plate, a mounting spring fixedly connected to the inner wall of the mounting groove, a sliding block fixedly connected to one end of the mounting spring, and a mounting block fixedly connected to one end of the sliding block.
Preferably, a clamping structure is formed between one end of the mounting block and the inside of the mounting hole, and the depth of the inside of the mounting hole is smaller than the length of the mounting groove.
Preferably, a sliding clamping structure is formed between the clamping block and the inside of the clamping groove, and the clamping groove and the clamping block are in a convex shape.
Preferably, the moving assembly comprises a limit groove formed in the inner top wall of the fixed frame, a moving threaded rod rotatably connected to the upper end of the inner wall of the fixed frame, a moving threaded block in threaded connection with the surface of the moving threaded rod, a limit block fixedly connected to the top end of the moving threaded block, and a servo motor fixedly connected to the upper end of the fixed frame, wherein the output end of the servo motor is fixedly connected with one end of the moving threaded rod through a coupler.
Preferably, the clamping assembly comprises a fixing plate symmetrically and fixedly connected to one side of the top end of the base, a pneumatic telescopic rod fixedly connected to one end of the fixing plate, a clamping plate fixedly connected to the output end of the pneumatic telescopic rod, and a rubber pad fixedly connected to one end of the clamping plate.
Preferably, the shape of the rotating rod is T-shaped, and one end of the surface of the rotating rod can limit the maximum sliding distance of the cutting knife on the surface of the rotating rod.
The beneficial effects of the utility model are as follows:
According to the utility model, the fixed-length threaded rod is driven to rotate by the rotating handle through the fixed-length assembly, so that the fixed-length threaded block slides to drive the fixed-length plate to slide, meanwhile, the indicating block is also driven to slide, the distance between one side of the fixed-length plate and one side of the fixed frame can be known by matching with the scale indicating strip, the distance is equal to the length of a sample to be cut, one end of the sample is abutted against one side of the fixed-length plate during each cutting, the length of the cut section of sample is fixed, fixed-length cutting is realized, the error is larger due to the traditional naked eye judgment, or the labor intensity caused by careful measurement of staff before each cutting is avoided, and the processing efficiency of core cutting and sample preparation can be improved;
According to the utility model, through the installation assembly, the clamping block is in sliding clamping with the inside of the clamping groove, and the elasticity of the installation spring is utilized, so that the installation block can be in sliding clamping with the inside of the installation hole or separated from the installation hole, and further, the installation disc can slide on the surface of the rotating rod, so that when the cutting knife needs to be disassembled, the installation disc is firstly slid and taken down, and when the cutting knife is installed, the installation disc and the T-shaped rotating rod are utilized for clamping and fixing the cutting knife, and further, the quick disassembly and the rapid disassembly of the cutting knife can be realized, the disassembly, the maintenance and the polishing or the direct replacement of the cutting knife are facilitated, the complicated inconvenience that the disassembly and the assembly must be carried out by means of tools due to the traditional bolt fixation and the like is avoided, and the practicability is improved.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of another view overall structure of the present utility model;
FIG. 3 is a schematic view of the explosive structure of the fixed length assembly of the present utility model;
FIG. 4 is a schematic view of the overall partial cross-sectional structure of the present utility model;
Fig. 5 is an enlarged schematic view of the explosion at the mounting assembly of the present utility model.
The device comprises a fixing frame, a 2 moving assembly, a 201 servo motor, a 202 moving screw block, a 203 moving screw rod, a 204 moving screw rod, a limiting groove, a 205 limiting block, a 3 mounting frame, a4 driving motor, a 5 clamping assembly, a 501 rubber pad, a 502 clamping plate, a 503 fixing plate, a 504 pneumatic telescopic rod, a 6 base, a 7 controller, an 8 fixed length assembly, a 801 sliding groove, a 802 fixed length plate, a 803 fixed length screw rod, a 804 rotating handle, a 804 fixed length screw rod, a 805 scale indicating bar, a 806 fixed groove, a 807 indicating block, a 808 fixed length screw rod, a 809 sliding block, a 9 mounting assembly, a 901, a clamping groove, a 902, a mounting hole, a 903 mounting spring, a 904 sliding block, a 905, a mounting block, a 906 mounting groove, a 907 clamping block, a 908 mounting disc, a 10 cutting knife, a 11 hydraulic cylinder, a 12 and a rotating rod.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.
Example 1
The utility model provides a core cutting and sample preparing device for engineering quality detection, which is shown in the figures 1 to 5, and comprises a base 6, clamping assemblies 5 symmetrically assembled at the top end of one side of the base 6, a fixing frame 1 fixedly connected at the top end of the base 6, a controller 7 fixedly connected with one side of the fixing frame 1, a moving assembly 2 assembled at the inner top wall of the fixing frame 1, a hydraulic cylinder 11 arranged at the bottom end of the moving assembly 2, an output end of the hydraulic cylinder 11 is fixedly connected with a mounting frame 3, a driving motor 4 fixedly connected at the lower end of one side of the mounting frame 3, a rotary rod 12 is fixedly connected at the output end of the driving motor 4 through a coupler, a cutting knife 10 is arranged on the surface of the rotary rod 12, a mounting assembly 9 assembled on the surface of the rotary rod 12, the mounting assembly 9 is used for realizing the disassembly and the fixation of the cutting knife 10, a fixed length assembly 8 assembled at the other side of the top end of the base 6 is used for realizing the fixed length cutting of a sample.
The fixed length assembly 8 comprises a fixed slot 806 formed in the middle position of the other side of the top end of the base 6, a fixed length threaded rod 804 rotationally connected to the inner wall of the fixed slot 806, a fixed length threaded block 808 in threaded connection with the surface of the fixed length threaded rod 804, a fixed length plate 802 fixedly connected to the top end of the fixed length threaded block 808, an indication block 807 fixedly connected to one end of the fixed length plate 802, a scale indication strip 805 fixedly connected to the other side of the top end of the base 6, a rotating handle 803 rotationally connected to the other side of the base 6, and one end of the rotating handle 803 is fixedly connected with one end of the fixed length threaded rod 804.
It should be noted that, the existing core-cutting sample preparation equipment for engineering quality detection still has certain defects in the actual use process, when the core is cut, the staff is required to judge the length of the cut sample by himself, the error of naked eye judgment is large, and when manual measurement is required each time, the labor intensity of the staff is increased, the corresponding core-cutting sample preparation working efficiency is reduced, and the use is inconvenient.
In this embodiment, the length of the sample to be cut is adjusted according to the requirement, at this time, the rotating handle 803 drives the fixed-length threaded rod 804 to rotate, the fixed-length threaded rod 804 and the fixed-length threaded block 808 are utilized to be in threaded fit, the fixed-length threaded block 808 is slid to drive the fixed-length plate 802 to slide, the fixed-length plate 802 slides to drive the indicating block 807 to slide, the distance between one side of the fixed-length plate 802 and one side of the fixed frame 1 can be known by matching with the scale indicating strip 805, the distance is equal to the length of the sample to be cut, then one end of the sample abuts against one side of the fixed-length plate 802 during each time of cutting, the length of the sample to be cut is further fixed, the fixed-length cutting is realized, then the sample is placed on the top end of the base 6, one end of the sample is directly attached to one side of the fixed-length plate 802, the sample is clamped and fixed by the clamping component 5, then the hydraulic cylinder 11 is started to drive the mounting frame 3 to descend, and the driving motor 4 is started to drive the cutting knife 10 to rotate, the cutting knife 10 is further to cut by the sample by the rotating rod 12, and the cutting knife 10 can horizontally slide by utilizing the moving component 2, so that the cutting knife 10 can be replaced by the cutting knife 10, and the cutting knife 10 with different side length sample side can be replaced by the same, and the cutting efficiency is convenient to be replaced by the quick change or replaced by the cutting knife 10.
In a further preferred embodiment of the present utility model, a sliding groove 801 is formed on the other side of the top end of the base 6, and a sliding block 809 in sliding fit with the inside of the sliding groove 801 is fixedly connected to the bottom end of the fixed length plate 802.
In the present embodiment, the sliding stability of the fixed length plate 802 is improved by the sliding of the slider 809 inside the chute 801.
Example 2
On the basis of embodiment 1, the preferred embodiment of the core cutting and sample preparing device for engineering quality detection provided by the utility model is shown in fig. 1 to 5, wherein the mounting assembly 9 comprises a clamping groove 901 formed on one side of the surface of a rotating rod 12, a mounting hole 902 formed on one side of the surface of the rotating rod 12, a mounting disc 908 slidingly connected to the surface of the rotating rod 12, a clamping block 907 fixedly connected to the inner wall of the mounting disc 908, a mounting groove 906 formed on the surface of the mounting disc 908, a mounting spring 903 fixedly connected to the inner wall of the mounting groove 906, a sliding block 904 fixedly connected to one end of the mounting spring 903, and a mounting block 905 fixedly connected to one end of the sliding block 904.
In this embodiment, the installation spring 903 is compressed by pulling the installation block 905 to drive the sliding block 904 to slide in the installation slot 906 until the sliding block is completely separated from the installation hole 902, then the installation plate 908 is pulled by force until the sliding block 908 is completely separated from the surface of the rotating rod 12, so that the cutting knife 10 can be taken down from the surface of the rotating rod 12, and during installation, the cutting knife 10 is sleeved on the surface of the rotating rod 12, and the limit of the cutting knife 10 after sliding installation is realized by utilizing the T-shaped rotating rod 12, then the installation block 905 is pulled to slide to a proper position, then the installation plate 908 is sleeved on the surface of the rotating rod 12, and the clamping block 907 is made to slide into the clamping slot 901, so that the friction force of the sliding sleeve of the installation plate 908 is improved, then the installation block 905 is released, and the elasticity of the installation spring 903 is utilized to slide the sliding block 904 to drive the installation block 905 to slide into the installation hole 902, so that the limit and the fixing of the cutting knife 10 after sliding is realized, and further the firm installation of the cutting knife 10 on the surface of the rotating rod 12 is realized, and the quick dismounting action of the cutting knife 10 is realized.
In a further preferred embodiment of the present utility model, the engagement structure is formed between one end of the mounting block 905 and the inside of the mounting hole 902, and the depth of the inside of the mounting hole 902 is smaller than the length of the mounting groove 906.
In this embodiment, the engagement between the mounting block 905 and the inside of the mounting hole 902 improves the durability of the mounting plate 908 after sliding fit.
In a further preferred embodiment of the present utility model, a sliding engagement structure is formed between the clamping block 907 and the inside of the clamping groove 901, and the clamping groove 901 and the clamping block 907 are in a convex shape.
In this embodiment, the convex clamping block 907 and the convex clamping groove 901 are utilized to improve the firmness and the position accuracy of the sliding sleeving of the surface of the mounting plate 908 and the surface of the rotating rod 12, so that the subsequent accurate clamping of the mounting block 905 and the inside of the mounting hole 902 is facilitated.
Example 3
On the basis of embodiment 1, the preferred embodiment of the core cutting and sample preparing equipment for engineering quality detection provided by the utility model is shown in fig. 1 to 5, wherein the moving assembly 2 comprises a limiting groove 204 formed in the inner top wall of the fixed frame 1, a moving threaded rod 203 rotatably connected to the upper end of the inner wall of the fixed frame 1, a moving threaded block 202 screwed on the surface of the moving threaded rod 203, the bottom end of the moving threaded block 202 is fixedly connected with the top end of the hydraulic cylinder 11, a limiting block 205 fixedly connected to the top end of the moving threaded block 202, a servo motor 201 fixedly connected to the upper end of the fixed frame 1, and the output end of the servo motor 201 is fixedly connected with one end of the moving threaded rod 203 through a coupler.
In this embodiment, the servo motor 201 is started to drive the movable threaded block 202 to rotate, and the movable threaded block 202 and the movable threaded rod 203 are matched by threads, so that the movable threaded block 202 slides to drive the hydraulic cylinder 11, the mounting frame 3 and the cutting knife 10 to move, thereby meeting the cutting requirements of samples with different side lengths.
In a further preferred embodiment of the present utility model, the clamping assembly 5 comprises a fixing plate 503 symmetrically and fixedly connected to one side of the top end of the base 6, a pneumatic telescopic rod 504 fixedly connected to one end of the fixing plate 503, an output end of the pneumatic telescopic rod 504 penetrating through the fixing plate 503 and fixedly connected to the clamping plate 502, and a rubber pad 501 fixedly connected to one end of the clamping plate 502.
In this embodiment, the pneumatic telescopic rod 504 is started to drive the clamping plate 502 to slide, so that the rubber pad 501 flexibly clamps and fixes the surface of the sample, and the subsequent cutting action is facilitated.
In a further preferred embodiment of the present utility model, the shape of the rotating rod 12 is T-shaped, and one end of the surface of the rotating rod 12 can limit the maximum sliding distance of the cutter 10 on the surface.
To sum up, utilize the removal subassembly 2 to realize the removal of cutting knife 10 horizontal direction, satisfy the cutting demand of different side length samples, reuse clamping assembly 5 firmly the centre gripping fixed to the sample, and utilize fixed length subassembly 8 to realize fixed length cutting, avoid traditional naked eye to judge and lead to the error great, or the intensity of labour that needs staff carefully to measure to bring before cutting at every turn is too big, utilize installation component 9 simultaneously, realize the quick assembly disassembly of cutting knife 10, be convenient for to its dismantlement maintenance of polishing or direct change, avoid traditional bolt fastening etc. to lead to the dismouting to have to resort to the trouble of instrument.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. Core cutting sample preparation equipment for engineering quality detection is characterized by comprising:
a base (6);
the clamping assemblies (5) are symmetrically assembled at the top end of one side of the base (6), and the clamping assemblies (5) are used for clamping and fixing samples;
The fixing frame (1) is fixedly connected to the top end of the base (6), and one side of the fixing frame (1) is fixedly connected with the controller (7);
The moving assembly (2) is assembled on the inner top wall of the fixed frame (1), and the moving assembly (2) is used for realizing horizontal adjustment of the cutting position;
The hydraulic cylinder (11) is arranged at the bottom end of the moving assembly (2), and the output end of the hydraulic cylinder (11) is fixedly connected with the mounting frame (3);
The driving motor (4) is fixedly connected to the lower end of one side of the mounting frame (3), the output end of the driving motor (4) penetrates through the mounting frame (3) and is fixedly connected with a rotating rod (12) through a coupler, and a cutting knife (10) is arranged on the surface of the rotating rod (12);
The mounting assembly (9) is assembled on the surface of the rotating rod (12), and the mounting assembly (9) is used for realizing the disassembly and fixation of the cutting knife (10);
The fixed-length assembly (8) is assembled on the other side of the top end of the base (6), and the fixed-length assembly (8) is used for realizing fixed-length cutting of a sample;
the fixed length assembly (8) comprises:
A fixed groove (806) arranged at the middle position of the other side of the top end of the base (6);
a fixed-length threaded rod (804) connected to the inner wall of the fixed groove (806) in a rotating mode, and a fixed-length threaded block (808) is connected to the surface of the fixed-length threaded rod (804) in a threaded mode;
a fixed length plate (802) fixedly connected to the top end of the fixed length screw block (808);
An indication block (807) fixedly connected to one end of the fixed length plate (802);
a scale indication strip (805) fixedly connected to the other side of the top end of the base (6);
And a rotating handle (803) connected to the other side of the base (6) in a rotating way, wherein one end of the rotating handle (803) is fixedly connected with one end of a fixed-length threaded rod (804).
2. The core cutting and sample preparing device for engineering quality detection according to claim 1, wherein a chute (801) is formed on the other side of the top end of the base (6), and a slider (809) in sliding fit with the inside of the chute (801) is fixedly connected to the bottom end of the fixed-length plate (802).
3. A core-cutting and sample-making device for engineering quality inspection according to claim 1, characterized in that the mounting assembly (9) comprises:
a clamping groove (901) formed on one side of the surface of the rotating rod (12), and a mounting hole (902) formed on one side of the surface of the rotating rod (12);
A mounting plate (908) slidably connected to the surface of the rotating rod (12);
A clamping block (907) fixedly connected to the inner wall of the mounting plate (908);
A mounting groove (906) formed in a surface of the mounting plate (908);
the mounting spring (903) is fixedly connected to the inner wall of the mounting groove (906);
a sliding block (904) fixedly connected to one end of the mounting spring (903);
And the mounting block (905) is fixedly connected to one end of the sliding block (904).
4. A core cutting and sample preparing apparatus for engineering quality inspection according to claim 3, wherein an engagement structure is formed between one end of said mounting block (905) and the inside of said mounting hole (902), and the depth of the inside of said mounting hole (902) is smaller than the length of said mounting groove (906).
5. A core cutting and sample preparing apparatus for engineering quality inspection according to claim 3, wherein a sliding engagement structure is formed between said clamping block (907) and the inside of said clamping groove (901), and the shape of said clamping groove (901) and said clamping block (907) are convex.
6. A core-cutting and sample-making device for engineering quality inspection according to claim 1, characterized in that the moving assembly (2) comprises:
A limit groove (204) arranged on the inner top wall of the fixing frame (1);
A movable threaded rod (203) rotatably connected to the upper end of the inner wall of the fixed frame (1);
The movable threaded block (202) is in threaded connection with the surface of the movable threaded rod (203), and the bottom end of the movable threaded block (202) is fixedly connected with the top end of the hydraulic cylinder (11);
The limiting block (205) is fixedly connected to the top end of the movable thread block (202);
The servo motor (201) is fixedly connected to the upper end of the fixing frame (1), and the output end of the servo motor (201) is fixedly connected with one end of the movable threaded rod (203) through a coupler.
7. A core-cutting and sample-making device for engineering quality inspection according to claim 1, characterized in that the clamping assembly (5) comprises:
A fixing plate (503) symmetrically and fixedly connected to one side of the top end of the base (6);
The pneumatic telescopic rod (504) is fixedly connected to one end of the fixed plate (503), and the output end of the pneumatic telescopic rod (504) penetrates through the fixed plate (503) and is fixedly connected with the clamping plate (502);
and the rubber pad (501) is fixedly connected to one end of the clamping plate (502).
8. The core cutting and sample preparing device for engineering quality detection according to claim 1, wherein the shape of the rotating rod (12) is T-shaped, and one end of the surface of the rotating rod (12) can limit the maximum sliding distance of the cutting knife (10) on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422251057.0U CN223091642U (en) | 2024-09-13 | 2024-09-13 | Core cutting and sample preparing equipment for engineering quality detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422251057.0U CN223091642U (en) | 2024-09-13 | 2024-09-13 | Core cutting and sample preparing equipment for engineering quality detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223091642U true CN223091642U (en) | 2025-07-11 |
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ID=96295419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422251057.0U Active CN223091642U (en) | 2024-09-13 | 2024-09-13 | Core cutting and sample preparing equipment for engineering quality detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223091642U (en) |
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- 2024-09-13 CN CN202422251057.0U patent/CN223091642U/en active Active
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