CN216138338U - Chuck and pipe cutting machine - Google Patents
Chuck and pipe cutting machine Download PDFInfo
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- CN216138338U CN216138338U CN202120446164.2U CN202120446164U CN216138338U CN 216138338 U CN216138338 U CN 216138338U CN 202120446164 U CN202120446164 U CN 202120446164U CN 216138338 U CN216138338 U CN 216138338U
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- chuck
- clamping jaw
- rotating
- support
- clamping
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Abstract
The utility model discloses a chuck and a pipe cutting machine, wherein the chuck comprises a support, a first clamping jaw arranged on the support, a first clamp arranged on the support and a rotating mechanism arranged on the support, wherein the first clamping jaw is arranged on the left side of the support, the first clamp is arranged on the right side of the support, the rotating mechanism is in driving connection with the first clamp and the first clamping jaw, the rotating mechanism drives the first clamp and the first clamping jaw to rotate around the left-right direction, the rotating axes of the first clamping jaw and the first clamp are collinear, a clamping space is arranged on the first clamping jaw, a clamping space is arranged on the first clamp, and the first clamping space and the clamping space are communicated with each other. The pipe cutting machine comprises the clamp. The utility model provides a clamp and a pipe cutting machine which can clamp a pipe so as to conveniently process tailings.
Description
Technical Field
The utility model relates to the field of pipe machining, in particular to a chuck and a pipe cutting machine.
Background
Traditional pipe cutting machine includes the frame, still including establishing in the frame and carrying the clamping jaw that the upper reaches set gradually to low reaches along tubular product, the chuck, laser cutting device, the tubular product of processing is pressed from both sides the upstream end by the clamping jaw, the outer wall of the tight section bar of processing of chuck clamp makes chuck section bar and chuck can carry the upper reaches to downstream direction relative slip along material, this clamping jaw can carry upstream to low reaches along tubular product and move, thereby drive the direction motion of the tubular product of processing toward laser cutting device, thereby realize the blank to tubular product.
But because the chuck needs to be arranged between the clamping jaw and the laser pipe cutting device, the clamping jaw can not completely send the tailings of the pipe to the laser and the pipe cutting device can not cut the tailings, and the tailings can not be cut.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to solve the above-mentioned technical problem.
The solution of the utility model for solving the technical problem is as follows:
the utility model provides a chuck, includes the support, still including setting up first clamping jaw on the support, set up first anchor clamps on the support, set up and be in slewing mechanism on the support, first clamping jaw set up in the left side of support, first anchor clamps set up in the right side of support, the slewing mechanism drive is connected first anchor clamps with first clamping jaw, slewing mechanism drives first anchor clamps with first clamping jaw rotates around left right direction, first clamping jaw with the axis of rotation collineation of first anchor clamps, be equipped with on the first clamping jaw and press from both sides tight space, be equipped with the joint space on the first anchor clamps, first press from both sides tight space with the joint space communicates each other.
As a further improvement of the above technical solution, the first jaw comprises:
the rotating mechanism drives the clamping jaw disc to rotate in the left and right directions;
the four clamping jaw guide rails are arranged around the rotation axis of the rotation mechanism in a circumferential array manner;
the four clamping jaw blocks are arranged and are in one-to-one corresponding sliding fit with the clamping jaw guide rails, and the clamping space is formed among the four clamping jaw blocks;
and the clamping jaw driving mechanism drives all the clamping jaw blocks to reciprocate along the clamping jaw guide rail.
As a further improvement of the above technical solution, the first clamp includes:
the rotating mechanism drives the disc body to rotate around the left and right directions;
the four chuck guide rails are arranged in a circumferential array around the rotating axis of the rotating mechanism;
the first rotating roller assemblies are respectively arranged on the two parallel chuck guide rails;
the second rotating roller assemblies are respectively arranged on the rest two parallel chuck guide rails; the first rotating roller assembly and the second rotating roller assembly are arranged in a staggered mode along the left-right direction, and a clamping space is formed between the first rotating roller assembly and the second rotating roller assembly;
and the rotating roller driving assembly is used for driving the first rotating roller assembly and the second rotating roller assembly to move along the chuck guide rail.
As a further improvement of the above technical scheme, the first rotating roller assembly comprises a first connecting frame of the chuck guide rail corresponding to the sliding fit, and a first press roller of the first connecting frame, the first press roller is provided with two press rollers, the two press rollers are parallel to each other and arranged in sequence along the left and right directions, the length direction of the chuck guide rail is perpendicular to the axis of the first press roller, and the first press roller is matched with the first press roller in a sliding manner.
As a further improvement of the above technical solution, the second rotating roller assembly includes a second connecting frame slidably engaged with the corresponding chuck guide rail, and a second pressing roller rotating the second connecting frame, the second pressing roller is provided in two, the two second pressing rollers are parallel to each other, the two second pressing rollers are sequentially arranged along the left-right direction, the length direction of the chuck guide rail slidably engaged with the second connecting frame is perpendicular to the axis of the second pressing roller, and the first connecting frame is disposed on the left side of the second connecting frame.
As a further improvement of the above technical scheme, slewing mechanism is including setting up rolling disc, the setting of support are in driving motor on the support, the rolling disc rotates to be connected the support, the driving motor drive is connected the rolling disc, driving motor drives the rolling disc rotates, the axis of rotation of rolling disc extends along left right direction, first clamping jaw first anchor clamps fixed connection respectively the rolling disc, be equipped with the passageway on the rolling disc, the passageway intercommunication press from both sides tight space with the joint space.
As a further improvement of the above technical solution, the rotating mechanism further includes an outer gear ring fixedly disposed on the rotating disc, and a transmission gear meshed with the outer gear ring, the driving motor is connected to the transmission gear in a driving manner, the outer gear ring is fixedly connected to the rotating disc, and the outer gear ring and the rotating disc are coaxially disposed.
As a further improvement of the technical scheme, an oil delivery pipe is arranged on the support, a lubricating wheel is connected to the support in a rotating mode, the lubricating wheel abuts against the side face of the outer gear ring, and the oil delivery pipe is used for delivering lubricating oil to the lubricating wheel.
The utility model also provides a pipe cutting machine which comprises a rack, a laser cutting device arranged beside the rack, a chuck combined by any technical scheme, a slide rail arranged on the support and extending along the left-right direction, and a third chuck and a second chuck which are respectively in sliding fit with the slide rail and are sequentially arranged along the left-right direction, wherein the support is arranged on the right side of the second chuck, the support is in sliding fit with the slide rail, and driving devices for providing power for reciprocating motion along the slide rail direction are respectively arranged on the third chuck, the second chuck and the support.
As a further improvement of the technical scheme, the rack extending along the left and right directions is arranged on the rack, the driving device comprises a conveying motor and a linkage connecting conveying gear, the third chuck, the second chuck and the support are respectively and fixedly connected with the conveying motor, and the conveying motor drives the conveying gear to rotate.
The utility model has the beneficial effects that: the pipe material reversing device is characterized in that the pipe material is conveyed from the upstream to the downstream in a conveying mode in a left-right direction, a clamping space formed in a first clamping jaw is used for clamping the pipe material, a clamping space formed in the first clamping jaw is used for being matched with the outer wall of the pipe material in a sliding mode, a rotating mechanism is used for driving the first clamping jaw and the first clamping jaw to rotate synchronously, the first clamping jaw is arranged on the right side of the first clamping jaw, when the pipe material reversing device is used, a user can arrange a support on the downstream of a clamping chuck of a traditional pipe cutting machine, the pipe material with short tail length can be conveyed towards the clamping space through the clamping jaw of the traditional pipe cutting machine, then the pipe material is clamped through contraction of the clamping space and is matched with the inner wall of the clamping space in a sliding mode, the pipe material is centered, the clamping space is contracted on the first clamping jaw to clamp the pipe material, the clamping jaw of the traditional pipe cutting machine is loosened, pipe material reversing is achieved, and then the user can use the rotating mechanism, The first clamping jaw and the first clamp are matched to drive the pipe material to move to the machining range of a laser cutting device on a traditional pipe cutting machine for machining.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is an isometric view of the present invention;
FIG. 2 is an isometric view of the present invention;
FIG. 3 is an isometric view of the present invention;
FIG. 4 is an enlarged view of A of FIG. 3 of the present invention;
FIG. 5 is an isometric view of the present invention;
fig. 6 is an enlarged view of B in fig. 5 of the present invention.
In the drawings: 1-bracket, 21-clamping jaw disc, 22-clamping jaw guide rail, 23-clamping jaw block, 31-disc body, 32-clamping jaw guide rail, 331-first connecting frame, 332-first press roller, 341-second connecting frame, 342-second press roller, 41-rotating disc, 42-driving motor, 43-external gear ring, 44-transmission gear, 51-oil pipe, 52-lubricating wheel, 61-frame, 62-third clamping disc, 63-second clamping disc, 71-conveying motor, 72-conveying gear, 73-rack and 74-sliding rail.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 to 6, a chuck, including support 1, still including setting up first clamping jaw on the support 1, setting are in first anchor clamps on the support 1, setting are in slewing mechanism on the support 1, first clamping jaw set up in the left side of support 1, first anchor clamps set up in the right side of support 1, the slewing mechanism drive is connected first anchor clamps with first clamping jaw, slewing mechanism drives first anchor clamps with first clamping jaw rotates around left right direction, first clamping jaw with the axis of rotation collineation of first anchor clamps, be equipped with tight space of clamp on the first clamping jaw, be equipped with the joint space on the first anchor clamps, first tight space of clamp with the joint space communicates each other.
In this embodiment, the direction from left to right is the direction from the upstream to the downstream of the pipe, the clamping space provided on the first clamping jaw is used for clamping the pipe, the clamping space provided on the first clamp is used for sliding-fitting the outer wall of the pipe, the rotating mechanism is used for driving the first clamping jaw and the first clamp to synchronously rotate, the first clamp is provided on the right side of the first clamping jaw, when in use, the user can arrange the support 1 on the downstream of the chuck of the traditional pipe cutting machine, the pipe with shorter length of the tail can be conveyed towards the clamping space by the clamping jaw of the traditional pipe cutting machine, then the pipe can be clamped by the contraction of the clamping space and is in sliding-fitting with the inner wall of the clamping space, the pipe is centered, the clamping space is contracted on the first clamping jaw to clamp the pipe, the clamping jaw of the traditional pipe cutting machine is loosened, thereby realizing the reversing of the pipe, furthermore, a user can drive the pipe material to move to the processing range of the laser cutting device on the traditional pipe cutting machine to process under the matching of the rotating mechanism, the first clamping jaw and the first clamp.
The utility model provides a clamp which can clamp a pipe so as to conveniently process tailings.
In some embodiments, the first jaw includes a jaw plate 21, a jaw guide 22, a jaw block 23, and a jaw driving mechanism, and the rotating mechanism drives the jaw plate 21 to rotate in the left-right direction; the four clamping jaw guide rails 22 are arranged, and the four clamping jaw guide rails 22 are arranged around the rotation axis of the rotating mechanism in a circumferential array manner; the four clamping jaw blocks 23 are arranged, the clamping jaw blocks 23 are in one-to-one corresponding sliding fit with the clamping jaw guide rails 22, and the clamping space is formed among the four clamping jaw blocks 23; the jaw drive mechanism drives all jaw blocks 23 to reciprocate along the jaw guide 22. This simple structure, set up conveniently, in-service use, this clamping jaw actuating mechanism of accessible drives clamping jaw piece 23 and moves along clamping jaw guide rail 22 to the realization is tight to the clamp of pipe material, drives clamping jaw dish 21 through slewing mechanism and rotates, thereby drives clamping jaw piece 23 and rotates, and then can drive the pipe material rotation that is pressed from both sides tightly by clamping jaw piece 23.
In some embodiments, the first clamp includes a disk 31, a chuck rail 32, a first rotating roller assembly, a second rotating roller assembly, and a rotating roller driving assembly, and the rotating mechanism drives the disk 31 to rotate around the left and right direction; four chuck guide rails 32 are arranged, and the four chuck guide rails 32 are arranged in a circumferential array around the rotating axis of the rotating mechanism; wherein two of the chuck rails 32 parallel to each other are respectively provided with one of the first rotating roller assemblies; the other two chuck guide rails 32 which are parallel to each other are respectively provided with one second rotating roller assembly; the first rotating roller assembly and the second rotating roller assembly are arranged in a staggered mode along the left-right direction, and a clamping space is formed between the first rotating roller assembly and the second rotating roller assembly; the rotating roller drive assembly is configured to move the first rotating roller assembly and the second rotating roller assembly along the chuck rail 32. This simple structure, it is convenient to set up, drive first rotation roller subassembly and second rotation roller subassembly through rotor roller drive assembly and move along chuck guide rail 32's length direction, first rotation roller subassembly and second rotation roller subassembly can be used to carry out the centering clamp to the outer wall of pipe material, first rotation roller subassembly and second rotation roller subassembly are along controlling the direction dislocation, can avoid the interference between first rotation roller subassembly and the second rotation roller subassembly on the one hand, on the other hand, the location to the pipe material is more accurate, make the pipe material along controlling the precision that the direction extends higher.
In some embodiments, the first rotating roller assembly includes a first connecting frame 331 slidably engaged with the corresponding chuck rail 32, and a first pressing roller 332 for rotating the first connecting frame 331, two first pressing rollers 332 are provided, two first pressing rollers 332 are parallel to each other, the two first pressing rollers 332 are sequentially arranged along a left-right direction, and a length direction of the chuck rail 32 slidably engaged with the first connecting frame 331 is perpendicular to an axis of the first pressing roller 332. This simple structure, setting are convenient, through the setting of this structure, can realize pressing from both sides tightly the outer wall of pipe material through first compression roller 332 to the pipe material is led.
In some embodiments, the second rotating roller assembly includes a second connection frame 341 slidably engaged with the corresponding chuck rail 32, and a second pressing roller 342 for rotating the second connection frame 341, two second pressing rollers 342 are provided, the two second pressing rollers 342 are parallel to each other, the two second pressing rollers 342 are sequentially arranged in a left-right direction, a length direction of the chuck rail 32 slidably engaged with the second connection frame 341 is perpendicular to an axis of the second pressing roller 342, and the first connection frame 331 is provided at a left side of the second connection frame 341. This simple structure, setting are convenient, through the setting of this structure, can realize pressing from both sides tightly the outer wall of pipe material through first compression roller 332 to lead the pipe material, use through the cooperation of first roller and second roller, realize pressing from both sides tightly the pipe material from the direction along four chuck guide rails 32.
In some embodiments, the rotating mechanism includes a rotating disc 41 arranged on the support 1 and a driving motor 42 arranged on the support 1, the rotating disc 41 is rotatably connected to the support 1, the driving motor 42 is in driving connection with the rotating disc 41, the driving motor 42 drives the rotating disc 41 to rotate, the rotation axis of the rotating disc 41 extends along the left-right direction, the first clamping jaw is fixedly connected to the rotating disc 41, a channel is arranged on the rotating disc 41, and the channel is communicated with the clamping space and the clamping space. This simple structure, setting are convenient, through the setting of this structure, can realize driving the rotation of first clamping jaw, first anchor clamps, and in addition, through the setting of this passageway, tubular product can pass from this passageway.
In some embodiments, the rotating mechanism further comprises an outer ring gear 43 fixedly arranged on the rotating disc 41, and a transmission gear 44 engaged with the outer ring gear 43, the driving motor 42 is in driving connection with the transmission gear 44, the outer ring gear 43 is fixedly connected with the rotating disc 41, and the outer ring gear 43 is coaxially arranged with the rotating disc 41. In use, the driving motor 42 drives the transmission gear 44 to rotate, thereby driving the external gear to rotate.
In some embodiments, an oil delivery pipe 51 is disposed on the bracket 1, a lubricating wheel 52 is rotatably connected to the bracket 1, the lubricating wheel 52 abuts against a side surface of the outer ring gear 43, and the oil delivery pipe 51 is used for delivering lubricating oil to the lubricating wheel 52. With this arrangement, the outer ring gear 43 can be lubricated.
The utility model also provides a pipe cutting machine, which comprises a rack 61, a laser cutting device arranged at the side of the rack 61, a chuck combined in any of the above embodiments, a slide rail 74 arranged on the support 1 and extending along the left-right direction, and a third chuck 62 and a second chuck 63 which are respectively matched with the slide rail 74 in a sliding manner and sequentially arranged along the left-right direction, wherein the support 1 is arranged at the right side of the second chuck 63, the support 1 is matched with the slide rail 74 in a sliding manner, and driving devices for providing power for reciprocating motion along the direction of the slide rail 74 are respectively arranged on the third chuck 62, the second chuck 63 and the support 1. Through drive arrangement's setting, third chuck 62, second chuck 63 and support 1 three can independently move respectively, and the user uses more nimble.
Since the above text and drawings have already been described in relation to the clamp, it will be understood by those skilled in the art that the clamp will not be described again here.
In some embodiments, a rack 73 extending in the left-right direction is disposed on the frame 61, the driving device includes a conveying motor 71 and a conveying gear 72 connected in a linkage manner, the third chuck 62, the second chuck 63, and the support 1 are respectively fixedly connected to the conveying motor 71, and the conveying motor 71 drives the conveying gear 72 to rotate. The structure is simple, the arrangement is convenient, and the third chuck 62, the second chuck 63 and the bracket 1 can move along the direction of the rack 73 respectively through the arrangement of the structure.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.
Claims (10)
1. The utility model provides a chuck, includes support (1), its characterized in that still is including setting up first clamping jaw on support (1), setting are in first anchor clamps on support (1), setting are in slewing mechanism on support (1), first clamping jaw set up in the left side of support (1), first anchor clamps set up in the right side of support (1), the slewing mechanism drive is connected first anchor clamps with first clamping jaw, slewing mechanism drives first anchor clamps with first clamping jaw rotates around left right direction, first clamping jaw with the axis of rotation collineation of first anchor clamps, be equipped with on the first clamping jaw and press from both sides tight space, be equipped with the joint space on the first anchor clamps, first press from both sides tight space with the joint space communicates each other.
2. The chuck according to claim 1, wherein the first jaw comprises: the clamping jaw plate (21) is driven by the rotating mechanism to rotate around the left and right directions;
the four clamping jaw guide rails (22) are arranged, and the four clamping jaw guide rails (22) are arranged around the rotation axis of the rotation mechanism in a circumferential array manner;
the clamping jaw comprises four clamping jaw blocks (23), the four clamping jaw blocks (23) are arranged, the clamping jaw blocks (23) are in one-to-one corresponding sliding fit with the clamping jaw guide rails (22), and the clamping space is formed among the four clamping jaw blocks (23);
and the clamping jaw driving mechanism drives all the clamping jaw blocks (23) to reciprocate along the clamping jaw guide rail (22).
3. The chuck according to claim 1, wherein the first clamp comprises: the rotating mechanism drives the disc body (31) to rotate around the left and right directions;
the four chuck guide rails (32) are arranged, and the four chuck guide rails (32) are arranged around the rotation axis of the rotating mechanism in a circumferential array manner;
a first rotating roller assembly, wherein one first rotating roller assembly is respectively arranged on two mutually parallel chuck guide rails (32);
the second rotating roller assemblies are respectively arranged on the remaining two chuck guide rails (32) which are parallel to each other; the first rotating roller assembly and the second rotating roller assembly are arranged in a staggered mode along the left-right direction, and a clamping space is formed between the first rotating roller assembly and the second rotating roller assembly;
a turning roller drive assembly for driving the first and second turning roller assemblies along the chuck rail (32).
4. The chuck according to claim 3, wherein the first rotating roller assembly includes a first connecting frame (331) slidably engaged with the corresponding chuck guide rail (32), and a first pressing roller (332) rotating the first connecting frame (331), the first pressing roller (332) is provided in two, the two first pressing rollers (332) are parallel to each other, the two first pressing rollers (332) are sequentially arranged in a left-right direction, and a length direction of the chuck guide rail (32) slidably engaged with the first connecting frame (331) is perpendicular to an axis of the first pressing roller (332).
5. The chuck according to claim 4, wherein the second rotating roller assembly includes a second connection frame (341) slidably engaged with the corresponding chuck rail (32), and a second pressing roller (342) rotating the second connection frame (341), the second pressing roller (342) is provided in two, the two second pressing rollers (342) are parallel to each other, the two second pressing rollers (342) are sequentially arranged in a left-right direction, a length direction of the chuck rail (32) slidably engaged with the second connection frame (341) is perpendicular to an axis of the second pressing roller (342), and the first connection frame (331) is provided in a left side of the second connection frame (341).
6. The chuck according to claim 1, characterized in that the rotating mechanism comprises a rotating disc (41) arranged on the support (1) and a driving motor (42) arranged on the support (1), the rotating disc (41) is rotatably connected with the support (1), the driving motor (42) is in driving connection with the rotating disc (41), the driving motor (42) drives the rotating disc (41) to rotate, the rotating axis of the rotating disc (41) extends along the left-right direction, the first clamping jaw and the first clamping jaw are respectively fixedly connected with the rotating disc (41), a channel is arranged on the rotating disc (41), and the channel is communicated with the clamping space and the clamping space.
7. The chuck according to claim 6, wherein the rotating mechanism further comprises an outer gear ring (43) fixedly arranged on the rotating disk (41), a transmission gear (44) engaged with the outer gear ring (43), the driving motor (42) is in driving connection with the transmission gear (44), the outer gear ring (43) is fixedly connected with the rotating disk (41), and the outer gear ring (43) is coaxially arranged with the rotating disk (41).
8. The chuck according to claim 7, characterized in that an oil delivery pipe (51) is arranged on the bracket (1), a lubricating wheel (52) is rotatably connected on the bracket (1), the lubricating wheel (52) abuts against the side surface of the outer gear ring (43), and the oil delivery pipe (51) is used for delivering lubricating oil to the lubricating wheel (52).
9. A pipe cutting machine is characterized in that: including frame (61), set up in the laser cutting device of frame (61) side, according to any one of claims 1-8 chuck, set up and be in slide rail (74) that extend along left right direction on support (1) and respectively sliding fit slide rail (74) and along the third chuck (62) and second chuck (63) that left right direction set gradually, support (1) set up in the right side of second chuck (63), support (1) sliding fit slide rail (74), third chuck (62), second chuck (63) be equipped with the drive arrangement who is used for providing the power along slide rail (74) direction reciprocating motion on support (1) respectively.
10. The pipe cutting machine according to claim 9, wherein the rack (73) extending in the left-right direction is disposed on the frame (61), the driving device includes a conveying motor (71) and a linkage connecting conveying gear (72), the third chuck (62), the second chuck (63) and the support (1) are respectively and fixedly connected to the conveying motor (71), and the conveying motor (71) drives the conveying gear (72) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120446164.2U CN216138338U (en) | 2021-03-01 | 2021-03-01 | Chuck and pipe cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120446164.2U CN216138338U (en) | 2021-03-01 | 2021-03-01 | Chuck and pipe cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216138338U true CN216138338U (en) | 2022-03-29 |
Family
ID=80798051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120446164.2U Active CN216138338U (en) | 2021-03-01 | 2021-03-01 | Chuck and pipe cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216138338U (en) |
-
2021
- 2021-03-01 CN CN202120446164.2U patent/CN216138338U/en active Active
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