CN212351074U - Flexible automatic code spraying and cutting device for 350-hour pipe fitting of contact network cantilever - Google Patents
Flexible automatic code spraying and cutting device for 350-hour pipe fitting of contact network cantilever Download PDFInfo
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- CN212351074U CN212351074U CN202021792609.4U CN202021792609U CN212351074U CN 212351074 U CN212351074 U CN 212351074U CN 202021792609 U CN202021792609 U CN 202021792609U CN 212351074 U CN212351074 U CN 212351074U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 79
- 238000005507 spraying Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 3
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 16
- 210000000707 wrist Anatomy 0.000 abstract description 15
- 238000007726 management method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 238000013523 data management Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model discloses a flexible automatic code spraying and cutting device for 350-hour pipe fittings of a contact network cantilever, which is characterized by comprising a pipe fitting cache unit, an automatic pipe fitting feeding unit, a pipe fitting transmission unit, a pipe fitting punching unit, a pipe fitting cutting unit and a pipe fitting code spraying unit which are arranged in sequence; a full-automatic marking, cutting and code spraying operation platform for the wrist arm pipe and the supporting pipe is formed; the intelligent control of the cantilever pre-allocation data is adopted, and the process data management and control of the construction process quality in the key pre-allocation process are realized; and the full life cycle information management of the cantilever preset information is realized by adopting the cantilever preset information code spraying unit.
Description
Technical Field
The utility model belongs to contact net cantilever intelligence pre-prepared field, concretely relates to flexible automation of 350 pipe fittings of contact net cantilever hourly speed spouts a yard cutting device.
Background
The cutting of the wrist arm pipe and the supporting pipe has strict process standards, no professional wrist arm pipe and supporting pipe cutting platform exists in the market at present, and the methods adopted by each construction unit are different. The traditional method has the difficulties that the technological standard of parts cannot be highly unified, the measurement cutting precision is not enough, the informatization management of the whole life cycle is not available, and the like, and the work efficiency and the unified standard need to be further improved, and the method specifically comprises the following points:
1. the traditional pre-preparation workshop wrist arm pipe and support pipe raw material cutting method generally adopts 3-4 common pipe fittings with standard length, such as long pipe fittings with the length of 2.6m, 2.8m, 3.0m, 3.4m or 14 m. During cutting, raw materials with similar lengths are selected according to the length of a wrist tube in a wrist arm pre-prepared table, the tube is manually picked up to the cutting platform, the scale lines are aligned to carry out manual marking and mechanical cutting, after the cutting is finished, the tube is manually picked up to drill holes on the drilling platform, and then the tube is manually picked up to the pre-prepared platform to be pre-prepared. A large amount of manpower and material resources are wasted in the transportation of the cutting mode.
2. The marking off of traditional pre-prepared workshop wrist arm pipe and stay tube pre-prepared length compares raw and other materials scale on cutting platform, and the cutting of drawing a line is carried out according to the position of comparing, and the manual work is drawn a line according to the scale line and is cut the technology error great, and because of the people therefore, the technology standard is not unified.
3. Traditional pre-prepared workshop cantilever pre-prepared information does not have tracking two-dimensional code or two-dimensional code and prints out the subsides on wrist arm pipe or pillar artificially, and this kind of mode causes the two-dimensional code easily to be damaged, can't read information through the two-dimensional code after the time is permanent, because cantilever pre-prepared information loses easily, can't carry out full life cycle's information-based management.
In order to build fine high-speed railway contact net engineering, improve the construction process standard, reduce the production manpower input cost, strengthen technical information management, further pointedly research and development of an automatic cutting operation platform for a wrist arm pipe and a supporting pipe are urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at least one of the defects or the improvement requirements in the prior art, the utility model provides a flexible automatic code spraying and cutting device for a 350-hour pipe fitting of a contact network cantilever, which forms a full-automatic marking, cutting and code spraying operation platform for the cantilever pipe and a support pipe; the intelligent control of the cantilever pre-allocation data is adopted, and the process data management and control of the construction process quality in the key pre-allocation process are realized; and the full life cycle information management of the cantilever preset information is realized by adopting the cantilever preset information code spraying unit.
In order to achieve the above object, according to an aspect of the present invention, there is provided a flexible automatic code-spraying cutting device for 350-hour pipe fittings of a contact network cantilever, which is characterized by comprising a pipe fitting cache unit, an automatic pipe fitting feeding unit, a pipe fitting transmission unit, a pipe fitting punching unit, a pipe fitting cutting unit and a pipe fitting code-spraying unit which are sequentially arranged;
the pipe fitting buffer unit is arranged at the side edge of the pipe fitting transmission unit, is provided with a slope inclined towards the pipe fitting transmission unit and is used for storing a plurality of 350-per-hour pipe fittings simultaneously;
the automatic pipe fitting feeding unit is arranged at the end part and below the pipe fitting transmission unit and used for pushing the pipe fitting rolled down from the pipe fitting caching unit to the pipe fitting transmission unit;
the pipe fitting transmission unit is used for actuating the pipe fitting to sequentially move for a preset distance along the longitudinal direction of the pipe fitting and comprises a plurality of supporting rollers, a moving platform and a platform guide rail; the support roller is used for being supported below the pipe fitting without power, the moving platform is provided with a pipe fitting pressure head, the pipe fitting pressure head is used for pressing the pipe fitting downwards on the support roller, and the moving platform is used for sliding along the platform guide rail, sequentially moving for a preset distance and driving the pipe fitting forwards; the platform guide rail is used for enabling the moving platform to reciprocate;
the pipe drilling unit is used for drilling a preset position of a pipe;
the pipe cutting unit is used for cutting a pipe into a preset length;
the pipe fitting code spraying unit is used for spraying code marks on the pipe wall and spraying maintainable marking lines on the ear ring pieces.
Preferably, the pipe fitting buffer unit comprises a plurality of pipe fitting supports which are sequentially arranged along the length direction of the pipe fitting, and a plurality of wedge-shaped strips are arranged at the upper ends of the pipe fitting supports.
Preferably, the tubular automatic pipe-handling unit comprises an end pipe-blocking device and a lower pipe-handling device;
the end pipe blocking device is used for allowing the head pipe fitting to roll down and blocking the subsequent pipe fitting to roll down, and the lower pipe mounting device is used for pushing the head pipe fitting to the supporting roller.
Preferably, the end pipe blocking device comprises a blocking plate and a stopper;
the blocking plates are arranged at two ends of the long pipe fitting raw material and are provided with holes for the stoppers to pass through;
the stopper is arranged on the stopper plate, has a telescopic structure, passes through the hole of the stopper, is inserted into the pipe end of the second pipe fitting behind the head pipe fitting, and stops the lower roll of the second pipe fitting and the subsequent pipe fitting.
Preferably, the stopper is a telescopic cylinder.
Preferably, the lower pipe-feeding device is an electric push cylinder.
Preferably, the pipe transmission unit further comprises a driving motor and a driving rack;
the driving motor is arranged on the moving platform, the driving rack is longitudinally and fixedly arranged along the platform guide rail, and the output end of the driving motor is meshed with the driving rack.
Preferably, the moving platform further comprises a pipe clamping head arranged below the pipe and used for clamping and moving the pipe together with the pipe pressing head when the rear end of the pipe is not supported by the supporting rollers.
Preferably, the pipe perforating unit comprises a drilling machine and a pipe rotating machine;
the pipe rotating machine is used for rotating a pipe fitting circumferentially by a preset angle to determine a position to be drilled and drilling holes through the drilling machine.
Preferably, the pipe cutting unit comprises a pipe locking device and a cutting knife;
the pipe fitting locking device is used for fixedly locking a pipe fitting to be cut, and the cutting knife is used for cutting off the pipe fitting.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. at present, the cantilever is pre-assembled according to a calculation result, a manual mode is adopted in a workshop for cutting, marking, cutting and carrying all depend on manual work, and the problems of low efficiency, difficulty in controlling precision and the like are caused. The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device, be equipped with pipe fitting buffer memory unit according to the process in proper order, the automatic pipe feeding unit that goes up of pipe fitting, pipe fitting transmission unit, the pipe fitting unit that punches, pipe fitting cutting unit and pipe fitting spout a yard unit, each item production data of pipe fitting, if cutting length, drilling position, earrings position and type, the pipe fitting spouts a yard information and so on, through each unit of PLC communication input, each unit reads data automatic conversion and carries out the action and produce, wrist arm pipe and stay tube full automatization mark, the cutting with spout a yard operation.
2. At present, the marking positions, cutting lengths and the like of raw materials pre-prepared for the wrist arm pipe and the supporting pipe are compared by paper data, platform scale marks and the like, and the process standards are not uniform, so that the improvement of the construction process standards is not facilitated. The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device adopts cantilever pre-prepared data intelligent control, realizes the process data ization management and control to the construction process quality of key pre-prepared in-process
3. Traditional wrist arm provisioning has no information management tracking. The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device adopts cantilever pre-prepared information to spout a yard unit, realizes the full life cycle's of cantilever pre-prepared information-based management.
Drawings
Fig. 1 is a schematic top view of a flexible automatic code-spraying cutting device for a contact network cantilever speed per hour 350 pipe fitting according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of the flexible automatic inkjet cutting device for overhead contact system wrists and 350 pipes according to the embodiment of the present invention at a viewing angle;
fig. 3 is a schematic perspective view of the flexible automatic inkjet cutting device for overhead contact system wrists and 350 pipes according to the embodiment of the present invention at another view angle;
fig. 4 is a schematic diagram of a pipe buffering unit and an automatic pipe feeding unit of a flexible automatic code-spraying cutting device for a contact network cantilever speed per hour 350 pipe in the embodiment of the present invention;
fig. 5 is a schematic view of a pipe transmission unit of the flexible automatic code-spraying cutting device for a contact network cantilever speed per hour 350 pipe in the embodiment of the present invention;
fig. 6 is the utility model discloses flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device's pipe fitting unit and pipe fitting cutting unit sketch map.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to the following embodiments.
As a preferred embodiment of the utility model, as shown in fig. 1-6, the utility model provides a flexible automation of contact net cantilever speed per hour 350 pipe fitting spouts a yard cutting device, including pipe fitting buffer memory unit 401, the automatic pipe feeding unit 402 of pipe fitting that sets gradually and the pipe fitting transmission unit 403, the pipe fitting unit 404 that punches, pipe fitting cutting unit 405 and the pipe fitting that sets gradually spout a yard unit 406.
As shown in FIG. 4, the tubular buffer unit 401 is disposed at a side of the tubular transfer unit 403, and has a slope inclined toward the tubular transfer unit 403 for simultaneously storing a plurality of tubulars at a speed of 350. Pipe fitting buffer memory unit 401 includes a plurality of pipe fitting supports 4011 that set gradually along pipe fitting length direction, and the upper end of pipe fitting support is equipped with a plurality of wedge strips 4012, the pipe fitting of the range on the wedge strip 4012 utilizes self gravity to roll down in proper order. Can deposit the tubular product of different pipe diameters size simultaneously on the pipe fitting support 4011, the tubular product raw materials is 12m long, and this embodiment is along vertically being equipped with four pipe fitting buffer memory units 401.
As shown in fig. 4, the pipe automatic-installing unit 402 is provided at an end and below the pipe driving unit 403 for pushing the pipe rolled down from the pipe buffering unit 401 to the pipe driving unit 403. The tubular automatic pipe-up unit 402 includes an end stop and a lower pipe-up device. The end pipe stop is used to allow a leading pipe to roll down while blocking the subsequent pipe from rolling down, and the lower pipe stop is used to push the leading pipe onto the support rollers 4031. Preferably, the end baffle tube device comprises a baffle plate 4021 and a baffle 4022; the blocking plates 4021 are arranged at two ends of the long pipe fitting raw material and are provided with holes for the blocking devices 4022 to penetrate through; the stopper 4022 is arranged on the stopper 4021, has a telescopic structure, passes through the hole of the stopper 4022, is inserted into the pipe end of the second pipe after the head pipe, and stops the second pipe and the subsequent pipe from rolling down. Preferably, the stopper 4022 is a telescopic cylinder. Preferably, the lower pipe installing device is an electric pushing cylinder 4023, an inserting plate is arranged at the upper part of the electric pushing cylinder 4023 and is inserted between the head pipe fitting and the second pipe fitting, an arc-shaped groove is formed in one side, close to the head pipe fitting, of the inserting plate, the head pipe fitting is pushed into the groove of the supporting roller 4031 along with the rising of the electric pushing cylinder, and then the lower pipe installing device retracts to prepare for pushing of the next pipe fitting.
As shown in fig. 5, the tubular driving unit 403 is used for driving the tubular to move sequentially along the longitudinal direction of the tubular for a predetermined distance, and includes a plurality of support rollers 4031, a moving platform 4032 and a platform rail 4033; the support rollers 4031 are used for supporting under the pipe without power, the moving platform 4032 is provided with a pipe pressure head 40321, the pipe pressure head 40321 is used for pressing the pipe downwards on the support rollers 4031, and the moving platform 4032 is used for sliding along the platform guide rail 4033 and moving a preset distance in sequence to drive the pipe forwards; the stage rail 4033 is used for reciprocating the moving stage 4032. The pipe transmission unit 403 further comprises a drive motor 4034 and a drive rack 4035; the driving motor 4034 is arranged on the moving platform 4032, the driving rack 4035 is longitudinally and fixedly arranged along the platform guide rail 4033, and the output end of the driving motor 4034 is meshed with the driving rack 4035. Various production data of the pipe fitting such as cutting length are input to the mobile platform 4032 through PLC communication, the mobile platform 4032 reads the cutting length data and automatically converts the cutting length data into distance data needing to be moved, the pipe fitting is driven to be cut according to the preset distance, and automatic operation of cutting with different preset lengths is sequentially achieved. If the length of the tubular is not sufficient to support it at the penultimate support rollers after cutting, the motion platform 4032 further includes a tubular gripper head disposed below the tubular to grip and move the tubular with the tubular ram 40321 when the rear end of the tubular is unsupported by the support rollers.
As shown in fig. 6, the pipe perforating unit 404 is used to drill a predetermined position of the pipe. The tubular perforating unit 404 includes a drill 4041 and a pipe rotator 4042; the pipe rotating machine 4042 is configured to rotate a pipe member circumferentially by a predetermined angle to determine a position to be drilled, and to drill a hole by the drilling machine 4041.
As shown in fig. 6, the pipe cutting unit 405 is used to cut a pipe to a predetermined length. The tube cutting unit 405 comprises a tube locking device 4051 and a cutting knife 4052; the pipe locking device 4051 is used for fixedly locking a pipe to be cut, and the cutting knife 4052 is used for cutting off the pipe.
As shown in fig. 1, the tube code spraying unit 406 is used for spraying code marks on the tube wall and spraying maintenance marks on the earring.
The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device, be equipped with pipe fitting buffer memory unit according to the process in proper order, the automatic pipe feeding unit that goes up of pipe fitting, pipe fitting transmission unit, the pipe fitting unit that punches, pipe fitting cutting unit and pipe fitting spout a yard unit, each item production data of pipe fitting, if cutting length, drilling position, earrings position and type, the pipe fitting spouts a yard information and so on, through each unit of PLC communication input, each unit reads data automatic conversion and carries out the action and produce, wrist arm pipe and stay tube full automatization mark, the cutting with spout a yard operation.
The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device adopts cantilever pre-prepared data intelligent control, realizes the process data ization management and control to the construction process quality of key pre-prepared in-process
The utility model discloses a flexible automation of contact net cantilever per hour 350 pipe fitting spouts a yard cutting device adopts cantilever pre-prepared information to spout a yard unit, realizes the full life cycle's of cantilever pre-prepared information-based management.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A flexible automatic code spraying and cutting device for 350-hour pipe fittings of a contact network cantilever is characterized by comprising a pipe fitting cache unit (401), an automatic pipe fitting feeding unit (402), a pipe fitting transmission unit (403), a pipe fitting punching unit (404), a pipe fitting cutting unit (405) and a pipe fitting code spraying unit (406) which are sequentially arranged;
the pipe buffer unit (401) is arranged at the side of the pipe transmission unit (403) and is provided with a slope inclined towards the pipe transmission unit (403) and used for simultaneously storing a plurality of pipes at the speed of 350 hours;
the automatic pipe feeding unit (402) is arranged at the end part and below the pipe transmission unit (403) and used for pushing the pipe rolled down from the pipe caching unit (401) to the pipe transmission unit (403);
the pipe fitting transmission unit (403) is used for actuating the pipe fitting to sequentially move for a preset distance along the longitudinal direction of the pipe fitting, and comprises a plurality of supporting rollers (4031), a moving platform (4032) and a platform guide rail (4033); the supporting rollers (4031) are used for being supported below the pipe in an unpowered mode, the moving platform (4032) is provided with a pipe pressing head (40321), the pipe pressing head (40321) is used for pressing the pipe downwards onto the supporting rollers (4031), and the moving platform (4032) is used for sliding along the platform guide rail (4033) and moving sequentially for a preset distance to drive the pipe forwards; the platform guide rail (4033) is used for reciprocating the mobile platform (4032);
the pipe perforating unit (404) is used for perforating a preset position of a pipe;
the tube cutting unit (405) is used for cutting a tube to a predetermined length;
the pipe fitting code spraying unit (406) is used for spraying code spraying marks on the pipe wall and spraying maintainable marking lines at the ear ring pieces.
2. The flexible automatic code-spraying cutting device for 350-pipe fittings at the speed of the contact network cantilever as claimed in claim 1, wherein:
pipe fitting buffer memory unit (401) are equipped with a plurality of wedge strips (4012) including a plurality of pipe fitting supports (4011) that set gradually along pipe fitting length direction, the upper end of pipe fitting support.
3. The flexible automatic code-spraying cutting device for 350-per-hour pipe fittings of the overhead line system cantilever of claim 2, wherein:
the tubular automatic pipe-handling unit (402) comprises an end pipe-blocking device and a lower pipe-handling device;
the end pipe blocking device is used for allowing a head pipe to roll down and blocking a subsequent pipe to roll down, and the lower pipe blocking device is used for pushing the head pipe onto the supporting rollers (4031).
4. The flexible automatic code-spraying cutting device for 350-pipe fittings at catenary cantilever speed per hour of claim 3, wherein:
the end pipe blocking device comprises a blocking plate (4021) and a blocker (4022);
the blocking plates (4021) are arranged at two ends of the long pipe fitting raw material and are provided with holes for the blocking devices (4022) to penetrate through;
the stopper (4022) is arranged on the stopper plate (4021), has a telescopic structure, passes through the hole of the stopper (4022), is inserted into the pipe end of the second pipe after the head pipe, and stops the second pipe and the subsequent pipe from rolling down.
5. The flexible automatic code-spraying cutting device for the 350-per-hour pipe fitting of the overhead line system cantilever of claim 4, wherein:
the stopper (4022) is a telescopic cylinder.
6. The flexible automatic code-spraying cutting device for 350-pipe fittings at catenary cantilever speed per hour of claim 3, wherein:
the lower pipe installing device is an electric push cylinder (4023).
7. The flexible automatic code-spraying cutting device for 350-pipe fittings at the speed of the contact network cantilever as claimed in claim 1, wherein:
the pipe transmission unit (403) further comprises a driving motor (4034) and a driving rack (4035);
the driving motor (4034) is arranged on the movable platform (4032), the driving rack (4035) is longitudinally and fixedly arranged along the platform guide rail (4033), and the output end of the driving motor (4034) is meshed with the driving rack (4035).
8. The flexible automatic code-spraying cutting device for 350-pipe fittings at the speed of the contact network cantilever as claimed in claim 1, wherein:
the moving platform (4032) further comprises a pipe clamping head which is arranged below the pipe and used for clamping and moving the pipe together with the pipe pressing head (40321) when the rear end of the pipe is not supported by the supporting rollers.
9. The flexible automatic code-spraying cutting device for 350-pipe fittings at the speed of the contact network cantilever as claimed in claim 1, wherein:
the tubular perforating unit (404) comprises a drilling machine (4041) and a pipe rotating machine (4042);
the pipe rotating machine (4042) is used for rotating the pipe fitting circumferentially by a preset angle to determine the position to be drilled, and drilling is carried out through the drilling machine (4041).
10. The flexible automatic code-spraying cutting device for 350-pipe fittings at the speed of the contact network cantilever as claimed in claim 1, wherein:
the pipe cutting unit (405) comprises a pipe locking device (4051) and a cutting knife (4052);
the pipe fitting locking device (4051) is used for fixedly locking a pipe fitting to be cut, and the cutting knife (4052) is used for cutting off the pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792609.4U CN212351074U (en) | 2020-08-24 | 2020-08-24 | Flexible automatic code spraying and cutting device for 350-hour pipe fitting of contact network cantilever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792609.4U CN212351074U (en) | 2020-08-24 | 2020-08-24 | Flexible automatic code spraying and cutting device for 350-hour pipe fitting of contact network cantilever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212351074U true CN212351074U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021792609.4U Expired - Fee Related CN212351074U (en) | 2020-08-24 | 2020-08-24 | Flexible automatic code spraying and cutting device for 350-hour pipe fitting of contact network cantilever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212351074U (en) |
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2020
- 2020-08-24 CN CN202021792609.4U patent/CN212351074U/en not_active Expired - Fee Related
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