CN221210708U - Self-locking nut linear cutting auxiliary device - Google Patents
Self-locking nut linear cutting auxiliary device Download PDFInfo
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- CN221210708U CN221210708U CN202322718616.XU CN202322718616U CN221210708U CN 221210708 U CN221210708 U CN 221210708U CN 202322718616 U CN202322718616 U CN 202322718616U CN 221210708 U CN221210708 U CN 221210708U
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- 238000003825 pressing Methods 0.000 claims abstract description 47
- 230000001105 regulatory effect Effects 0.000 claims abstract 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
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Abstract
The utility model relates to a self-locking nut linear cutting auxiliary device which comprises a bottom plate, an adjusting plate and a pressing plate, wherein a plurality of self-locking nuts can be placed on the surface of the bottom plate along the length direction of the bottom plate at intervals, and part of the top surface of a hexagonal boss of each self-locking nut can be abutted against the surface of the bottom plate. The adjusting plate can be arranged on the bottom plate along the width direction of the bottom plate in a moving mode, a plurality of positioning grooves are formed in one side edge of the adjusting plate at intervals along the length direction of the adjusting plate, and one part of each hexagonal boss can be inserted into the corresponding positioning groove to limit the rotation of the self-locking nut. The clamp plate can be withheld on the regulating plate and can be connected with regulating plate and bottom plate through the fastener, and one side of clamp plate is followed its length direction interval and is equipped with a plurality of arc grooves, and the clamp plate can be pressed on the partial bottom surface of hexagonal boss, and the column of self-locking nut body can be partly leaned on the arc groove. The self-locking nut linear cutting auxiliary device can clamp a plurality of nuts at a time to perform linear cutting, and is simple in structure, and firm and reliable in clamping.
Description
Technical Field
The utility model relates to the technical field of auxiliary processing, in particular to a self-locking nut linear cutting auxiliary device.
Background
The titanium alloy self-locking nut is a nut with an effective moment locking structure, which is also a main characteristic different from a common nut, the locking moment of the self-locking nut is a main index of a performance test, and the main factors influencing the locking moment are the closing position and the size. The larger the closing-in amount is, the larger the locking force is, and when the closing-in amount is enough, the thread of the nut is easy to crack. In order to detect and avoid this, it is necessary to cut the nut along the major axis of the elliptical neck, then to detect the metallographic structure, and to observe whether the structure streamline has cracks. Because the TC16 nut is a hexagonal boss in shape, only a single piece of processing can be performed at a time when wire cutting is performed, and the working efficiency is low. And the situation that the clamping nut is deviated exists, so that the wire cutting position is not at the position of the maximum closing-in position of the nut, and the crack defect cannot be found timely, thereby influencing the subsequent procedure.
Disclosure of utility model
The utility model aims to provide a self-locking nut linear cutting auxiliary device which can clamp a plurality of nuts at a time to perform linear cutting and has a simple structure and stable and reliable clamping.
The utility model aims to realize that a self-locking nut linear cutting auxiliary device comprises:
The bottom plate is characterized in that a plurality of self-locking nuts can be placed on the plate surface of the bottom plate along the length direction of the bottom plate, and partial top surfaces of hexagonal bosses of the self-locking nuts can be abutted against the plate surface of the bottom plate;
The adjusting plate can be movably arranged on the bottom plate along the width direction of the bottom plate, and a plurality of positioning grooves are formed in one side of the adjusting plate along the length direction of the adjusting plate at intervals; a part of each hexagonal boss can be inserted into the corresponding positioning groove so as to limit the rotation of the self-locking nut;
The pressing plate can be buckled on the adjusting plate and can be connected with the adjusting plate and the bottom plate through a fastener; one side edge of the pressing plate is provided with a plurality of arc grooves at intervals along the length direction, the pressing plate can be pressed against part of the bottom surface of the hexagonal boss, and part of the columnar body of the self-locking nut can be abutted against the arc grooves.
In a preferred embodiment of the present utility model, the positioning groove is a V-shaped groove, and at least a part of one side angle of the hexagonal boss can be inserted into the V-shaped groove and is attached to the groove wall of the V-shaped groove.
In a preferred embodiment of the present utility model, the arcuate slot is an elliptical arcuate slot.
In a preferred embodiment of the present utility model, the bottom plate, the adjusting plate and the pressing plate are rectangular plate bodies.
In a preferred embodiment of the present utility model, the base plate, the adjustment plate and the pressure plate are equal in length, the base plate and the pressure plate are equal in width, and the adjustment plate is smaller in width than the base plate.
In a preferred embodiment of the utility model, dovetail grooves penetrating through two ends of the bottom plate in the width direction are formed in the plate surface of the bottom plate, dovetail blocks are arranged on the adjusting plate, and the dovetail blocks can be inserted into the dovetail grooves in a sliding mode.
In a preferred embodiment of the present utility model, the number of dovetail grooves is two and distributed at both ends of the base plate in the length direction, and the number of dovetail blocks is two and distributed at both ends of the adjusting plate in the length direction.
In a preferred embodiment of the utility model, the adjusting plate is provided with a first mounting hole, the pressing plate is provided with a second mounting hole, and the fastener can pass through the first mounting hole and the second mounting hole and is fixedly connected with the bottom plate.
In a preferred embodiment of the utility model, a threaded hole is formed in the bottom plate, the first mounting hole and the second mounting hole are waist holes, and the fastener is a fastening bolt and can pass through the first mounting hole and the second mounting hole and then be in threaded connection with the threaded hole. The relative position between the adjusting plate and the pressing plate and the cutting line can be adjusted through the waist holes, so that the processing of nuts with multiple specifications is realized.
In a preferred embodiment of the present utility model, the number of the threaded holes, the first mounting holes and the second mounting holes is two.
According to the auxiliary device, the self-locking nut can be prevented from rotating through the positioning groove on the adjusting plate, and the hexagonal boss can be pressed and clamped between the pressing plate and the bottom plate through the pressing plate and the bottom plate respectively attached to the partial top surface and the partial bottom surface of the hexagonal boss; the arc-shaped groove is formed in the pressing plate and can be attached to a part of the columnar body of the self-locking nut, so that the contact area between the pressing plate and the self-locking nut can be increased, and the clamping stability is improved. Meanwhile, the adjusting plate can slide, can be suitable for installation of self-locking nuts with different specifications, and is higher in universality. The whole device can clamp a plurality of nuts at one time, so that a plurality of self-locking nuts can be cut at one time, and the machining efficiency is high; meanwhile, the clamping stability can be ensured, the self-locking nut after clamping is prevented from deviating, the wire cutting position is ensured to be at the maximum closing position of the self-locking nut, and the smooth proceeding of the subsequent working procedure is facilitated; and the structure is simple, stable and reliable.
Drawings
The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein:
fig. 1: is a first structural schematic diagram of the self-locking nut.
Fig. 2: is a second schematic structural view of the self-locking nut.
Fig. 3: the utility model provides a structural schematic diagram of a self-locking spiral bar cutting auxiliary device.
Fig. 4: is the left side view of fig. 3.
Fig. 5: the utility model provides a structural schematic diagram of the bottom plate.
Fig. 6: is the left side view of fig. 5.
Fig. 7: the structure of the adjusting plate is schematically shown.
Fig. 8: is the left side view of fig. 7.
Fig. 9: the structure of the pressing plate is schematically shown.
Fig. 10: is the left side view of fig. 9.
Reference numerals illustrate:
100. The self-locking nut wire cutting auxiliary device;
1. a bottom plate; 11. a dovetail groove; 12. a threaded hole;
2. An adjusting plate; 21. a positioning groove; 22. dovetail blocks; 23. a first mounting hole;
3. a pressing plate; 31. an arc-shaped groove; 32. a second mounting hole;
4. A fastener;
200. A self-locking nut; 201. hexagonal boss; 202. and (3) a columnar body.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
As shown in fig. 1 to 10, the present embodiment provides a self-locking nut wire-cutting auxiliary device 100, including:
the bottom plate 1, along its length direction can be used for placing a plurality of self-locking nuts 200 at intervals on its face, the partial top surface of the hexagonal boss 201 of the self-locking nut 200 can be leaned against the face of the bottom plate 1;
An adjusting plate 2 movably provided on the base plate 1 in the width direction of the base plate 1, one side edge of the adjusting plate 2 being provided with a plurality of positioning grooves 21 at intervals in the length direction thereof; a portion of each hexagonal boss 201 can be inserted into a corresponding positioning groove 21 to limit the rotation of the self-locking nut 200;
A pressing plate 3 capable of being buckled on the adjusting plate 2 and connected with the adjusting plate 2 and the bottom plate 1 through a fastener 4; one side of the pressing plate 3 is provided with a plurality of arc grooves 31 at intervals along the length direction thereof, the pressing plate 3 can be pressed against a part of the bottom surface of the hexagonal boss 201, and a part of the columnar body 202 of the self-locking nut 200 can be abutted against the arc grooves 31.
The structure of the self-locking nut 200 refers to fig. 1 and 2, and includes a hexagonal boss 201 and a cylindrical body 202 that are connected with each other, where the hexagonal boss 201 and the cylindrical body 202 are hollow ring structures, an inner wall of the cylindrical body 202 has an internal thread, and a cross section of the cylindrical body 202 is elliptical. In this embodiment, the end surface of the hexagonal boss 201 facing away from the columnar body 202 is taken as the top surface, and the other opposite end surface is taken as the bottom surface.
The whole auxiliary device is used for clamping the self-locking nuts 200, when the self-locking nut clamping device is used, a plurality of self-locking nuts 200 are placed on the plate surface of the bottom plate 1 and close to one side edge of the self-locking nuts, the adjusting plate 2 is moved along the width direction of the bottom plate 1, so that a part of the hexagonal boss 201 of the self-locking nut 200 is embedded into the corresponding positioning groove 21, the center line of the self-locking nut 200 is ensured to be positioned on the outer side of the edge of the bottom plate 1, and the linear cutting position is enabled to be in the maximum deformation area of the self-locking nut 200; then the pressing plate 3 is buckled on the adjusting plate 2, and the pressing plate 3, the adjusting plate 2 and the bottom plate 1 are fastened together through the fastener 4; thereby completing the clamping and fixing of the plurality of self-locking nuts 200. At this time, a part of top surface of the hexagonal boss 201 of the self-locking nut 200 is abutted against the plate surface of the bottom plate 1, a part of bottom surface of the hexagonal boss 201 is abutted against the plate surface of the pressing plate 3, a part of the hexagonal boss 201 is embedded into the positioning groove 21, a part of the columnar body 202 is abutted against the arc-shaped groove 31, and the position to be wire-cut of the self-locking nut 200 is exposed out of the bottom plate 1, and the cutting direction of the position to be wire-cut is parallel to the length direction of the bottom plate 1. The row of self-locking nuts 200 can then be cut by mounting the auxiliary device with the plurality of self-locking nuts 200 clamped thereto to the clamp of the cutting machine.
Thus, in the auxiliary device in the embodiment, the self-locking nut 200 can be prevented from rotating by the positioning groove 21 on the adjusting plate 2, and the hexagonal boss 201 can be tightly clamped between the pressing plate 3 and the bottom plate 1 by the pressing plate 3 and the bottom plate 1 respectively abutting against part of the top surface and part of the bottom surface of the hexagonal boss 201; the arc groove 31 is formed in the pressing plate 3, the arc groove 31 can be attached to a part of the columnar body 202 of the self-locking nut 200, the contact area between the pressing plate 3 and the self-locking nut 200 can be increased, and the clamping stability is improved. Meanwhile, the adjusting plate 2 can slide, so that the adjusting plate is applicable to the installation of self-locking nuts 200 with different specifications, and the universality is stronger. The whole device can clamp a plurality of nuts at one time, so that a plurality of self-locking nuts 200 can be cut at one time, and the processing efficiency is high; meanwhile, the clamping stability can be ensured, the self-locking nut 200 after clamping is prevented from deviating, the wire cutting position is ensured to be at the maximum closing position of the self-locking nut 200, and the smooth proceeding of the subsequent working procedure is facilitated; and the structure is simple, stable and reliable.
In a specific implementation manner, referring to fig. 4 and 8, the positioning groove 21 is a V-shaped groove, and at least a part of one side angle of the hexagonal boss 201 can be inserted into the V-shaped groove and is attached to the groove wall of the V-shaped groove.
It will be appreciated that the dimensions of the V-groove should match the dimensions of the hexagonal boss 201 of the smallest sized self-locking nut 200 to accommodate various sized self-locking nuts 200.
Since the columnar body 202 of the self-locking nut 200 is an elliptical columnar body, the above-mentioned arc-shaped groove 31 is preferably an elliptical arc-shaped groove, the long axis direction of the elliptical arc-shaped groove extends along the length direction of the pressing plate 3, and the long axis of the ellipse where the cross section of the elliptical arc-shaped groove along the length direction of the pressing plate 3 is located should be located outside the side edge of the bottom plate 1, and the distance is smaller, and the position where the long axis is located, that is, the position a to be wire-cut, corresponds to the long axis of the columnar body 202 of each self-locking nut 200. The size of the elliptical arc groove should be matched with the size of the cylindrical body 202 of the minimum specification self-locking nut 200 to be suitable for the self-locking nuts 200 of different specifications.
The shape of each plate body may be determined according to the need, for example, in this embodiment, the bottom plate 1, the adjusting plate 2, and the pressing plate 3 are rectangular plate bodies. The lengths of the bottom plate 1, the adjusting plate 2 and the pressing plate 3 are equal, the widths of the bottom plate 1 and the pressing plate 3 are equal, and the width of the adjusting plate 2 is smaller than that of the bottom plate 1.
Further, in order to make the structure more stable, referring to fig. 3 and fig. 5 to 8, a dovetail groove 11 penetrating through two ends of the bottom plate 1 in the width direction is formed on the plate surface of the bottom plate 1, a dovetail block 22 is formed on the adjusting plate 2, and the dovetail block 22 is slidably inserted into the dovetail groove 11 to limit the adjusting plate 2 to move along the length direction of the bottom plate 1 and move along the direction perpendicular to the plate surface of the bottom plate 1, so that the adjusting plate 2 can move along the width direction of the bottom plate 1, and further the self-locking nut 200 is suitable for self-locking nuts 200 with different specifications.
The number of dovetail slots 11 and dovetail blocks 22 should be equal. For example, in the present embodiment, the number of the dovetail grooves 11 is two and distributed at both ends in the longitudinal direction of the base plate 1, and the number of the dovetail blocks 22 is two and distributed at both ends in the longitudinal direction of the adjusting plate 2.
In order to facilitate the fastening of the pressing plate 3, the adjusting plate 2 and the bottom plate 1, referring to fig. 4 to 10, a first mounting hole 23 is formed in the adjusting plate 2, a second mounting hole 32 is formed in the pressing plate 3, and the fastening member 4 can pass through the first mounting hole 23 and the second mounting hole 32 and be fixedly connected with the bottom plate 1.
Preferably, the bottom plate 1 is provided with a threaded hole 12, the first mounting hole 23 and the second mounting hole 32 are waist holes (the length direction of the waist holes extends along the width direction of the bottom plate 1), and the fastener 4 is a fastening bolt and can pass through the first mounting hole 23 and the second mounting hole 32 and then be in threaded connection with the threaded hole 12. By adopting the design of waist holes, the relative positions of the adjusting plate 2, the pressing plate 3 and the bottom plate 1 can be more conveniently adjusted, and the fastening of the three is facilitated. The clamping of the multi-specification self-locking nut 200 can be applied by adjusting the relative positions of the pressing plate 3, the adjusting plate 2 and the bottom plate 1, and the structure is simple and the operation is convenient.
The number of the fasteners 4, the threaded holes 12, the first mounting holes 23 and the second mounting holes 32 are the same and the positions are corresponding, for example, the number of each is two in the present embodiment, and the fasteners are arranged at intervals along the length direction of the base plate 1.
Further, the installation and use process of the whole auxiliary device is as follows:
(1) Self-locking nut 200 is installed
The adjusting plate 2 is mounted on the bottom plate 1 through the dovetail groove 11, the relative position of the adjusting plate 2 and the bottom plate 1 is adjusted according to the specification of the self-locking nut 200, at least one part of one corner of the hexagonal boss 201 of the self-locking nut 200 is embedded into the V-shaped groove of the adjusting plate 2, and the surface contact position is tightly attached, namely the mounting is in place.
(2) Platen 3 mounting
After the self-locking nut 200 is installed, the pressing plate 3 is buckled above the adjusting plate 2, the clamping of the multi-specification self-locking nut 200 is realized by adjusting the relative positions of the pressing plate 3 and the bottom plate 1 through the waist holes, and the arc-shaped groove 31 of the pressing plate 3 is ensured to be in fit with a part of the columnar body 202 of the self-locking nut 200.
(3) Fastening bolt installation
The assembled dies of the steps (1) and (2) are locked and fixed through fastening bolts, and the installation of the rows of self-locking nuts 200 is completed, at this time, one of the self-locking nuts 200 is mostly exposed out of the bottom plate, and the other is mostly clamped by an auxiliary device, and the wire cutting position of each self-locking nut 200 is on the same straight line with the wire cutting position A in FIG. 4.
(4) Mounting of rows of nuts
And (3) positioning the mounted row of nuts to the clamp position of the wire cutting machine through the pressing plate 3 and the bottom plate 1, and aligning. The auxiliary device after the installation is vertically placed, i.e., the length direction of the bottom plate 1 is vertically placed.
(5) Wire cutting nut
Cutting the row of nuts on the wire cutting machine, and preparing for coating and metallographic structure detection in the later working procedure.
In summary, the conventional wire cutting mode is adopted, because the clamping position of the nut is narrow, the deviation can be generated in the processing process, and only one nut can be clamped at a time, so that the processing efficiency is low. In the auxiliary device in the embodiment, the adjusting plate 2 with the positioning groove 21 and the pressing plate 3 with the arc groove 31 are two main components of the die, and the adjusting plate 2 and the bottom plate 1 are assembled together through the dovetail groove 11, so that the freedom degrees of the length direction of the bottom plate 1 and the direction vertical to the plate surface of the bottom plate 1 can be limited, and the stable positioning effect is achieved. The adjusting plate 2 can horizontally move along the dovetail groove 11 to clamp the hexagonal bosses 201 of the multi-specification self-locking nuts 200, the pressing plate 3 can be relatively positioned with the bottom plate 1 through the waist holes, and then the clamping of the elliptic cylindrical surfaces of the columnar bodies 202 of the multi-specification self-locking nuts 200 can be realized by means of fastening bolts. The positioning groove 21 ensures that the self-locking nut 200 is fixed and not rotated, the pressing plate 3 of the arc-shaped groove 31 tightly presses the self-locking nut 200 to play a role in positioning, and then the set of die is clamped on linear cutting equipment for processing.
The self-locking nut 200 is clamped by adopting the auxiliary device, so that the clamping contact area of equipment can be increased, and the clamping is firm; after the hexagonal boss 201 of the self-locking nut 200 is clamped into the positioning groove 21 of the adjusting plate 2, the self-locking nut 200 is firmly fixed in a die by a fastening bolt with the pressing plate 3 with the arc-shaped groove 31, and then the die is mounted on a linear cutting machine for processing; the problems of easy deviation of a workpiece, low processing efficiency and the like of the traditional linear cutting method of the TC16 self-locking nut 200 are effectively solved; the die is beneficial to rapidly completing the linear cutting of a plurality of self-locking nuts 200, avoids repeated clamping operation and has good reliability; compared with the traditional single-piece sequential processing mode, the processing efficiency can be greatly improved, and the application prospect is wide; the cutting position can be fixed at the position of the maximum closing-in position of the self-locking nut 200, so that crack defects can be found in time, and effective data support is provided for the nut closing-in process.
The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this utility model, and are intended to be within the scope of this utility model.
Claims (10)
1. A self-locking nut wire cutting auxiliary device, characterized by comprising:
The bottom plate is characterized in that a plurality of self-locking nuts can be placed on the plate surface of the bottom plate at intervals along the length direction of the bottom plate, and part of the top surface of a hexagonal boss of each self-locking nut can be abutted against the plate surface of the bottom plate;
The adjusting plate can be movably arranged on the bottom plate along the width direction of the bottom plate, and a plurality of positioning grooves are formed in one side of the adjusting plate along the length direction of the adjusting plate at intervals; a part of each hexagonal boss can be inserted into the corresponding positioning groove so as to limit the rotation of the self-locking nut;
the pressing plate can be buckled on the adjusting plate and can be connected with the adjusting plate and the bottom plate through fasteners; one side edge of the pressing plate is provided with a plurality of arc grooves at intervals along the length direction, the pressing plate can be pressed against part of the bottom surface of the hexagonal boss, and part of the columnar body of the self-locking nut can be abutted against the arc grooves.
2. The self-locking nut wire-cutting auxiliary device according to claim 1, wherein,
The positioning groove is a V-shaped groove, and at least one part of one side angle of the hexagonal boss can be inserted into the V-shaped groove and is attached to the groove wall of the V-shaped groove.
3. The self-locking nut wire-cutting auxiliary device according to claim 1, wherein,
The arc-shaped groove is an elliptical arc-shaped groove.
4. The self-locking nut wire-cutting auxiliary device according to claim 1, wherein,
The bottom plate, the adjusting plate and the pressing plate are rectangular plate bodies.
5. The self-locking screw thread cutting auxiliary device according to claim 4, wherein,
The bottom plate, the regulating plate and the pressing plate are equal in length, the bottom plate is equal in width to the pressing plate, and the regulating plate is smaller than the bottom plate in width.
6. The self-locking nut wire-cutting auxiliary device according to claim 1, wherein,
The dovetail grooves penetrating through the two ends of the bottom plate in the width direction are formed in the surface of the bottom plate, dovetail blocks are arranged on the adjusting plate, and the dovetail blocks can be inserted into the dovetail grooves in a sliding mode.
7. The self-locking nut wire-cutting auxiliary device according to claim 6, wherein,
The number of the dovetail grooves is two and distributed at two ends of the bottom plate in the length direction, and the number of the dovetail blocks is two and distributed at two ends of the regulating plate in the length direction.
8. The self-locking nut wire-cutting auxiliary device according to claim 1, wherein,
The adjusting plate is provided with a first mounting hole, the pressing plate is provided with a second mounting hole, and the fastener can pass through the first mounting hole and the second mounting hole and is fixedly connected with the bottom plate.
9. The self-locking nut wire-cutting auxiliary device according to claim 8, wherein,
The bottom plate is provided with a threaded hole, the first mounting hole and the second mounting hole are waist holes, and the fastener is a fastening bolt and can penetrate through the first mounting hole and the second mounting hole and then is in threaded connection with the threaded hole.
10. The self-locking screw thread cutting auxiliary device according to claim 9, wherein,
The number of the threaded holes, the first mounting holes and the second mounting holes is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322718616.XU CN221210708U (en) | 2023-10-10 | 2023-10-10 | Self-locking nut linear cutting auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322718616.XU CN221210708U (en) | 2023-10-10 | 2023-10-10 | Self-locking nut linear cutting auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221210708U true CN221210708U (en) | 2024-06-25 |
Family
ID=91543402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322718616.XU Active CN221210708U (en) | 2023-10-10 | 2023-10-10 | Self-locking nut linear cutting auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221210708U (en) |
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2023
- 2023-10-10 CN CN202322718616.XU patent/CN221210708U/en active Active
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