CN216586065U - Front end actuating mechanism for removing marked lines - Google Patents
Front end actuating mechanism for removing marked lines Download PDFInfo
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- CN216586065U CN216586065U CN202123110761.7U CN202123110761U CN216586065U CN 216586065 U CN216586065 U CN 216586065U CN 202123110761 U CN202123110761 U CN 202123110761U CN 216586065 U CN216586065 U CN 216586065U
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Abstract
The utility model discloses a front end executing mechanism for removing marked lines, which comprises a truck, wherein a fixed frame is fixed at the front end of the truck, a left walking device and a right walking device are installed on one side of the fixed frame, a rotating device is arranged at the upper end of the left walking device and the right walking device, a rotating hydraulic motor is installed on the rotating device, and a first connecting block is fixed on one side of the upper end of the rotating device. The utility model can drive the manual work through the truck, reduce the use of personnel, reduce the labor intensity of the manual work, can adjust the plane cleaner to move in the horizontal direction through the left and right travelling mechanisms, can adjust the plane cleaner to rotate for one hundred eighty degrees through the rotating mechanism, and can adjust the cleaning radius and the cleaning height of the plane cleaner through the amplitude modulation mechanism, thereby effectively reducing the use of personnel, improving the cleaning efficiency and the cleaning effect of pavement markings, ensuring the traffic order when the markings are cleaned, and improving the safety of the personnel.
Description
Technical Field
The utility model relates to the technical field of removing pavement marking lines by high-pressure water, in particular to a front-end executing mechanism for removing marking lines.
Background
In the technology of removing the ground mark lines on the road surface, the marked lines are mostly cleaned and recovered by manually pushing a plane cleaner by hand.
However, when the flat surface cleaner is manually pushed, more than three persons are required to operate the flat surface cleaner, and the flat surface cleaner needs to be manually pushed to and fro many times to clean the surface in the cleaning process, so that the labor intensity of the workers is increased, the efficiency of cleaning the reticle is reduced, the traffic order is influenced in the cleaning process, and the operators have certain dangerousness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a front end actuating mechanism for removing a marked line.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a marking is clear away and is used front end actuating mechanism, includes the truck, the front end of truck is fixed with the mount, running gear about one side of mount is installed, running gear's upper end is provided with slewer about, the last rotation hydraulic motor that installs of slewer, slewer's upper end one side is fixed with first connecting block, slewer's upper end is provided with amplitude modulation mechanism, the last first festival arm that is equipped with of amplitude modulation mechanism, the one end of first festival arm is rotated and is connected on first connecting block, the other end of first festival arm is rotated and is connected with second festival arm, the one end of second festival arm is provided with turning device, turning device's lower extreme is provided with the plane purger.
Preferably, in order to adjust the cleaning radius and the cleaning height of the plane cleaner, the amplitude modulation mechanism comprises a second connecting block fixedly connected to the other side of the upper end of the slewing device, a first hydraulic oil cylinder is connected to the second connecting block in a rotating mode, the telescopic end of the first hydraulic oil cylinder is connected to the first section arm in a rotating mode, a fixing block is fixed to the middle of the upper end of the first section arm, a second hydraulic oil cylinder is connected to the fixing block in a rotating mode, and the telescopic end of the second hydraulic oil cylinder is connected to the other end of the second section arm in a rotating mode.
Preferably, in order to adjust the plane cleaner to move in the horizontal direction, a power mechanism is arranged on the left walking device and the right walking device, a driving gear is arranged on the power mechanism, two sliding rails are fixed on one side of the fixing frame, two sliding pieces are fixed on one side of the left walking device and the right walking device, the two sliding pieces are respectively sleeved on the two sliding rails in a sliding mode, a rack is fixed at the lower end of one side of the fixing frame, and the driving gear is meshed with the lower end of the rack.
Preferably, in order to provide power for the horizontal movement of the left and right traveling devices, the power mechanism comprises a moving hydraulic motor fixedly mounted on the left and right traveling devices, and the tail end of an output shaft of the moving hydraulic motor penetrates through the left and right traveling devices and is fixedly connected to the middle of one side of the driving gear.
Preferably, for the convenience more when making the plane purger remove on the road surface, the one end of second festival arm is rotated and is connected with the connecting rod, the one end of connecting rod is rotated and is connected on the plane purger, the lower extreme four corners of plane purger all is provided with the universal wheel.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the use of the truck, the left and right traveling devices, the slewing device, the amplitude modulation device and the plane cleaner, the plane cleaner can be driven by the truck to travel on the road surface, the plane cleaner can be adjusted to move in the horizontal direction through the left and right traveling mechanisms, the plane cleaner can be adjusted to rotate by one hundred eighty degrees through the slewing mechanism, and the cleaning radius and the cleaning height of the plane cleaner can be adjusted through the amplitude modulation mechanism, so that the plane cleaner can be pushed by the truck instead of manpower, the use of workers is effectively reduced, the labor intensity of the workers is reduced, meanwhile, the cleaning efficiency and the cleaning effect of the road marking can be improved, the traffic order during the marking cleaning can be ensured, and the safety of the workers is improved;
2. through the use of the turnover mechanism, the turnover mechanism can drive the plane cleaner to turn right and left when the plane cleaner needs to be maintained and checked, so that the plane cleaner is more convenient to maintain and check, and the convenience of the plane cleaner in maintenance and check is effectively improved;
in conclusion, the utility model can drive the manual work through the truck, reduce the use of personnel, reduce the labor intensity of the manual work, can adjust the plane cleaner to move in the horizontal direction through the left and right travelling mechanisms, can adjust the plane cleaner to rotate for one hundred eighty degrees through the rotating mechanism, and can adjust the cleaning radius and the cleaning height of the plane cleaner through the amplitude modulation mechanism, thereby effectively reducing the use of the personnel, improving the cleaning efficiency and the cleaning effect of the pavement marking, ensuring the traffic order during the cleaning of the marking, and improving the safety of the personnel.
Drawings
FIG. 1 is a view of a connection structure of a front end actuator for reticle removal according to the present invention;
FIG. 2 is a side view of a front end actuator for reticle removal in accordance with the present invention; fig. 3 is a schematic structural view of a left and right traveling device of a front end actuating mechanism for removing a reticle according to the present invention.
In the figure: the device comprises a left-right traveling device 1, a turning device 2, a first arm 3, a second arm 4, a turning device 5, a plane cleaner 6, a truck 7, a fixed frame 8, a sliding rail 9, a sliding part 10, a mobile hydraulic motor 11, a driving gear 12, a rack 13, a rotating hydraulic motor 14, a first connecting block 15, a second connecting block 16, a first hydraulic oil cylinder 17, a fixed block 18, a second hydraulic oil cylinder 19, a connecting rod 20 and a universal wheel 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1 to 3, a front end actuator for removing a reticle, comprising a truck 7, wherein the truck 7 is used to push a flat washer 6 instead of a manual work, so that the flat washer 6 can more conveniently and rapidly clean a reticle, thereby effectively avoiding affecting traffic order and improving manual safety, a fixing frame 8 is fixed at the front end of the truck 7, a left and right traveling device 1 is installed at one side of the fixing frame 8, the left and right traveling device 1 can be installed at the front end of the truck 7 through the fixing frame 8, the left and right traveling device 1 is connected with a mating part, thereby facilitating stable operation, setting programs and automatic operation, the left and right traveling device 1 is a carrier of the mating part capable of adjusting the flat washer 6 to move in a horizontal direction, the flat washer 6 is connected with the mating part, thereby facilitating stable operation and setting programs, the plane washer 6 is an apparatus which can effectively wash the ground mark line by automatically operating, and can wash the passing position by high pressure water while moving.
In the utility model, a power mechanism is arranged on a left walking device and a right walking device 1, a driving gear 12 is arranged on the power mechanism, the power mechanism comprises a mobile hydraulic motor 11 fixedly arranged on the left walking device and the right walking device 1, the tail end of an output shaft of the mobile hydraulic motor 11 penetrates through the left walking device and the right walking device 1 and is fixedly connected with the middle part of one side of the driving gear 12, the mobile hydraulic motor 11 is connected with a matching component, so that the stable operation is convenient, a program can be set, the automatic operation is realized, the mobile hydraulic motor 11 can drive the driving gear 12 to rotate when operating, two slide rails 9 are fixed on one side of a fixing frame 8, two sliding pieces 10 are fixed on one side of the left walking device and the right walking device 1, the two sliding pieces 10 are respectively sleeved on the two slide rails 9 in a sliding way, when the left walking device and the right walking device 1 moves in a horizontal direction, the movable distance is 800mm, a rack 13 is fixed at the lower end of one side of the fixing frame 8, the driving gear 12 is meshed with the lower end of the rack 13, when the driving gear 12 rotates, the driving gear 12 can move through the rack 13, the driving gear 12 can drive the left walking device 1 and the right walking device 1 to move, and power is provided for the left walking device 1 and the right walking device 1 to move.
In the utility model, a slewing device 2 is arranged at the upper end of a left walking device 1 and a right walking device 1, a rotary hydraulic motor 14 is arranged on the slewing device 2, the slewing device 2 can be driven to move when the left walking device 1 and the right walking device 1 move left and right, a worm gear and a worm are arranged in the slewing device 2, the rotary hydraulic motor 14 is connected with a matching component, so that stable operation is facilitated, programs can be set, automatic operation is realized, the rotary hydraulic motor 14 can drive the worm to rotate, the slewing device 2 can be supported by the worm and the worm gear in a slewing manner, the slewing device 2 can adjust the plane cleaner to slew by 6 degrees and eighty degrees, a first connecting block 15 is fixed at one side of the upper end of the slewing device 2, an amplitude modulation mechanism is arranged at the upper end of the slewing device 2, a first joint arm 3 is arranged on the amplitude modulation mechanism, one end of the first joint arm 3 is rotatably connected to the first connecting block 15, and the first connecting block 15 can be driven to move when the slewing device 2 revolves, the first connecting block 15 can drive the first knuckle arm 3 on the amplitude modulation mechanism to rotate.
In the utility model, the other end of the first knuckle arm 3 is rotatably connected with a second knuckle arm 4, the second knuckle arm 4 can rotate on the first knuckle arm 3, when the first knuckle arm 3 rotates, the second knuckle arm 4 can be driven to rotate, the amplitude modulation mechanism comprises a second connecting block 16 fixedly connected to the other side of the upper end of the rotating device 2, a first hydraulic oil cylinder 17 is rotatably connected on the second connecting block 16, the telescopic end of the first hydraulic oil cylinder 17 is rotatably connected on the first knuckle arm 3, the first hydraulic oil cylinder 17 is connected with a matching component, stable operation is facilitated, programs can be set, automatic operation can be realized, the angle of the first knuckle arm 3 can be adjusted through the expansion and contraction of the first hydraulic oil cylinder 17, a fixed block 18 is fixed at the middle part of the upper end of the first knuckle arm 3, a second hydraulic oil cylinder 19 is rotatably connected on the fixed block 18, the second hydraulic oil cylinder 19 can be installed on the first knuckle arm 3 through the fixed block 18, the second hydraulic cylinder 19 is connected with a matched component, so that stable operation is facilitated, a program can be set, automatic operation is achieved, the telescopic end of the second hydraulic cylinder 19 is rotatably connected to the other end of the second knuckle arm 4, the angle of the second knuckle arm 4 can be adjusted when the second hydraulic cylinder 19 is telescopic, the angles of the first knuckle arm 3 and the second knuckle arm 4 can be effectively adjusted through the first hydraulic cylinder 17 and the second hydraulic cylinder 19, and therefore the cleaning radius and the cleaning height of the plane cleaner 6 can be adjusted.
In the utility model, one end of the second section arm 4 is provided with a turnover device 5, the lower end of the turnover device 5 is provided with a plane cleaner 6, the turnover device 5 is provided with a hydraulic swing oil cylinder, the hydraulic swing oil cylinder is connected with a matching component to facilitate stable operation, can set a program and automatically operate, the plane cleaner 6 can be driven to turn over at ninety degrees through the hydraulic swing oil cylinder, so that the plane cleaner 6 is more convenient to maintain and check, the plane cleaner 6 is connected with the matching component to facilitate stable operation, the program can be set and automatically operate, the marking on the road surface can be more effectively cleaned through the plane cleaner 6, therefore, the marking road surface at the front end of the truck 7 can be driven to clean through the truck 7, the left and right traveling devices 1, the revolving device 2, the amplitude modulation mechanism and the turnover device 5 when the truck 7 travels at the same speed, meanwhile, the plane cleaner 6 can be controlled to be freely cleaned within a radius of two meters, and the plane cleaner 6 can be turned by ninety degrees when the plane cleaner 6 needs to be checked and maintained, so that the convenience of the plane cleaner 6 is effectively improved.
Example 2
Referring to fig. 1 to 3, a front end actuator for removing a reticle, comprising a truck 7, wherein the truck 7 is used to push a flat washer 6 instead of a manual work, so that the flat washer 6 can more conveniently and rapidly clean a reticle, thereby effectively avoiding affecting traffic order and improving manual safety, a fixing frame 8 is fixed at the front end of the truck 7, a left and right traveling device 1 is installed at one side of the fixing frame 8, the left and right traveling device 1 can be installed at the front end of the truck 7 through the fixing frame 8, the left and right traveling device 1 is connected with a mating part, thereby facilitating stable operation, setting programs and automatic operation, the left and right traveling device 1 is a carrier of the mating part capable of adjusting the flat washer 6 to move in a horizontal direction, the flat washer 6 is connected with the mating part, thereby facilitating stable operation and setting programs, the plane washer 6 is an apparatus which can effectively wash the ground mark line by automatically operating, and can wash the passing position by high pressure water while moving.
In the utility model, a power mechanism is arranged on a left walking device and a right walking device 1, a driving gear 12 is arranged on the power mechanism, the power mechanism comprises a mobile hydraulic motor 11 fixedly arranged on the left walking device and the right walking device 1, the tail end of an output shaft of the mobile hydraulic motor 11 penetrates through the left walking device and the right walking device 1 and is fixedly connected with the middle part of one side of the driving gear 12, the mobile hydraulic motor 11 is connected with a matching component, so that the stable operation is convenient, a program can be set, the automatic operation is realized, the mobile hydraulic motor 11 can drive the driving gear 12 to rotate when operating, two slide rails 9 are fixed on one side of a fixing frame 8, two sliding pieces 10 are fixed on one side of the left walking device and the right walking device 1, the two sliding pieces 10 are respectively sleeved on the two slide rails 9 in a sliding way, when the left walking device and the right walking device 1 moves in a horizontal direction, the movable distance is 800mm, a rack 13 is fixed at the lower end of one side of the fixing frame 8, the driving gear 12 is meshed with the lower end of the rack 13, when the driving gear 12 rotates, the driving gear 12 can move through the rack 13, the driving gear 12 can drive the left walking device 1 and the right walking device 1 to move, and power is provided for the left walking device 1 and the right walking device 1 to move.
In the utility model, a slewing device 2 is arranged at the upper end of a left walking device 1 and a right walking device 1, a rotary hydraulic motor 14 is arranged on the slewing device 2, the slewing device 2 can be driven to move when the left walking device 1 and the right walking device 1 move left and right, a worm gear and a worm are arranged in the slewing device 2, the rotary hydraulic motor 14 is connected with a matching component, so that stable operation is facilitated, programs can be set, automatic operation is realized, the rotary hydraulic motor 14 can drive the worm to rotate, the slewing device 2 can be supported by the worm and the worm gear in a slewing manner, the slewing device 2 can adjust the plane cleaner to slew by 6 degrees and eighty degrees, a first connecting block 15 is fixed at one side of the upper end of the slewing device 2, an amplitude modulation mechanism is arranged at the upper end of the slewing device 2, a first joint arm 3 is arranged on the amplitude modulation mechanism, one end of the first joint arm 3 is rotatably connected to the first connecting block 15, and the first connecting block 15 can be driven to move when the slewing device 2 revolves, the first connecting block 15 can drive the first knuckle arm 3 on the amplitude modulation mechanism to rotate.
In the utility model, the other end of the first knuckle arm 3 is rotatably connected with a second knuckle arm 4, the second knuckle arm 4 can rotate on the first knuckle arm 3, when the first knuckle arm 3 rotates, the second knuckle arm 4 can be driven to rotate, the amplitude modulation mechanism comprises a second connecting block 16 fixedly connected to the other side of the upper end of the rotating device 2, a first hydraulic oil cylinder 17 is rotatably connected on the second connecting block 16, the telescopic end of the first hydraulic oil cylinder 17 is rotatably connected on the first knuckle arm 3, the first hydraulic oil cylinder 17 is connected with a matching component, stable operation is facilitated, programs can be set, automatic operation can be realized, the angle of the first knuckle arm 3 can be adjusted through the expansion and contraction of the first hydraulic oil cylinder 17, a fixed block 18 is fixed at the middle part of the upper end of the first knuckle arm 3, a second hydraulic oil cylinder 19 is rotatably connected on the fixed block 18, the second hydraulic oil cylinder 19 can be installed on the first knuckle arm 3 through the fixed block 18, the second hydraulic cylinder 19 is connected with a matched component, so that stable operation is facilitated, a program can be set, automatic operation is achieved, the telescopic end of the second hydraulic cylinder 19 is rotatably connected to the other end of the second knuckle arm 4, the angle of the second knuckle arm 4 can be adjusted when the second hydraulic cylinder 19 is telescopic, the angles of the first knuckle arm 3 and the second knuckle arm 4 can be effectively adjusted through the first hydraulic cylinder 17 and the second hydraulic cylinder 19, and therefore the cleaning radius and the cleaning height of the plane cleaner 6 can be adjusted.
In the utility model, one end of the second section arm 4 is provided with a turnover device 5, the lower end of the turnover device 5 is provided with a plane cleaner 6, the turnover device 5 is provided with a hydraulic swing oil cylinder, the hydraulic swing oil cylinder is connected with a matching component to facilitate stable operation, can set a program and automatically operate, the plane cleaner 6 can be driven to turn over at ninety degrees through the hydraulic swing oil cylinder, so that the plane cleaner 6 is more convenient to maintain and check, the plane cleaner 6 is connected with the matching component to facilitate stable operation, the program can be set and automatically operate, the marking on the road surface can be more effectively cleaned through the plane cleaner 6, therefore, the marking road surface at the front end of the truck 7 can be driven to clean through the truck 7, the left and right traveling devices 1, the revolving device 2, the amplitude modulation mechanism and the turnover device 5 when the truck 7 travels at the same speed, meanwhile, the plane cleaner 6 can be controlled to be freely cleaned within a radius of two meters, and the plane cleaner 6 can be turned by ninety degrees when the plane cleaner 6 needs to be checked and maintained, so that the convenience of the plane cleaner 6 is effectively improved. In the utility model, one end of the second-joint arm 4 is rotatably connected with the connecting rod 20, one end of the connecting rod 20 is rotatably connected to the plane cleaner 6, the plane cleaner 6 can be connected to the second-joint arm 4 through the connecting rod 20, the plane cleaner 6 is kept to turn right and left when the turning device 5 drives the plane cleaner 6 to turn, the four corners of the lower end of the plane cleaner 6 are respectively provided with the universal wheels 21, the universal wheels 21 are wheels which can change the turning direction, the plane cleaner 6 can be more convenient to move through the universal wheels 21, and the convenience of the plane cleaner 6 in moving is effectively improved.
Compared with embodiment 1, the present embodiment can make the plane washer 6 more convenient when moving through the universal wheels 21, and increase the convenience when moving the plane washer 6.
In the present invention, when used: the plane cleaner 6 is driven to move by a truck 7, the lower end of the position can be cleaned by the operation of the plane cleaner 6, meanwhile, the operation of a mobile hydraulic motor 11 is controlled by a matched control device, the mobile hydraulic motor 11 drives a driving gear 12 to rotate, the driving gear 12 moves on a rack 13, the driving gear 12 moves to drive a left walking device 1 and a right walking device 1 to move, the left walking device and the right walking device 1 move left and right to drive the plane cleaner 6 to move in the horizontal direction, the operation of a mobile hydraulic motor 14 is controlled by the matched control device, the mobile hydraulic motor 14 provides power for a rotating device 2, the rotating device 2 drives a first connecting block 15 and a second connecting block 16 to move, the first connecting block 15 drives a first knuckle arm 3 to rotate, the first knuckle arm 3 drives a second knuckle arm 4 to rotate, the second knuckle arm 4 drives the plane cleaner 6 to rotate at one hundred eighty degrees, a first hydraulic oil cylinder 17 and a second hydraulic oil cylinder 19 are controlled by the matched control device to move, the angles of the first section arm 3 and the second section arm 4 can be adjusted, and the cleaning radius and the cleaning height of the plane cleaner 6 can be adjusted, so that the front end of the truck 7 can be freely cleaned within a radius of two meters when the truck 7 moves.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (5)
1. A front end actuator for reticle removal, comprising a truck (7), characterized in that: the front end of truck (7) is fixed with mount (8), running gear (1) about is installed to one side of mount (8), the upper end of controlling running gear (1) is provided with slewer (2), install on slewer (2) and rotate hydraulic motor (14), upper end one side of slewer (2) is fixed with first connecting block (15), the upper end of slewer (2) is provided with amplitude modulation mechanism, be equipped with first festival arm (3) in the amplitude modulation mechanism, the one end of first festival arm (3) is rotated and is connected on first connecting block (15), the other end of first festival arm (3) is rotated and is connected with second festival arm (4), the one end of second festival arm (4) is provided with turning device (5), the lower extreme of turning device (5) is provided with plane cleaning ware (6).
2. The front end actuator for reticle removal according to claim 1, wherein: amplitude modulation mechanism includes second connecting block (16) of fixed connection at slewer (2) upper end opposite side, it is connected with first hydraulic cylinder (17) to rotate on second connecting block (16), the flexible end of first hydraulic cylinder (17) is rotated and is connected on first festival arm (3), the upper end middle part of first festival arm (3) is fixed with fixed block (18), it is connected with second hydraulic cylinder (19) to rotate on fixed block (18), the flexible end of second hydraulic cylinder (19) is rotated and is connected on the other end of second festival arm (4).
3. The front end actuator for reticle removal according to claim 1, wherein: the left and right walking device is characterized in that a power mechanism is arranged on the left and right walking device (1), a driving gear (12) is arranged on the power mechanism, two sliding rails (9) are fixed on one side of the fixing frame (8), two sliding pieces (10) are fixed on one side of the left and right walking device (1), the two sliding pieces (10) are respectively sleeved on the two sliding rails (9) in a sliding mode, a rack (13) is fixed at the lower end of one side of the fixing frame (8), and the driving gear (12) is meshed at the lower end of the rack (13).
4. The front end actuator for reticle removal according to claim 3, wherein: the power mechanism comprises a movable hydraulic motor (11) fixedly mounted on the left and right traveling devices (1), and the tail end of an output shaft of the movable hydraulic motor (11) penetrates through the left and right traveling devices (1) and is fixedly connected to the middle of one side of the driving gear (12).
5. The front end actuator for reticle removal according to claim 1, wherein: one end of the second section arm (4) is rotatably connected with a connecting rod (20), one end of the connecting rod (20) is rotatably connected to the plane cleaner (6), and universal wheels (21) are arranged at four corners of the lower end of the plane cleaner (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110761.7U CN216586065U (en) | 2021-12-13 | 2021-12-13 | Front end actuating mechanism for removing marked lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123110761.7U CN216586065U (en) | 2021-12-13 | 2021-12-13 | Front end actuating mechanism for removing marked lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216586065U true CN216586065U (en) | 2022-05-24 |
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ID=81611160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123110761.7U Active CN216586065U (en) | 2021-12-13 | 2021-12-13 | Front end actuating mechanism for removing marked lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216586065U (en) |
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2021
- 2021-12-13 CN CN202123110761.7U patent/CN216586065U/en active Active
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