CN113459682A - Marking device - Google Patents
Marking device Download PDFInfo
- Publication number
- CN113459682A CN113459682A CN202110929543.1A CN202110929543A CN113459682A CN 113459682 A CN113459682 A CN 113459682A CN 202110929543 A CN202110929543 A CN 202110929543A CN 113459682 A CN113459682 A CN 113459682A
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- Prior art keywords
- fixedly connected
- cylinders
- workbench
- marking
- fixed connection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Methods (AREA)
Abstract
The invention relates to the technical field of processing devices, in particular to a marking device, wherein a conveying component and a marking mechanism are connected with a workbench, a placing plate is connected with the conveying component, two first cylinders are connected with the placing plate, two first piston rods are connected with the two first cylinders, two mounting frames are connected with the two first piston rods, a plurality of outer cylinders are connected with the two mounting frames, a plurality of reset springs are connected with the plurality of outer cylinders, a plurality of inner cylinders are connected with the plurality of reset springs, a plurality of rotating shafts are connected with the plurality of inner cylinders, a plurality of balls are connected with the plurality of rotating shafts, a workpiece is slid into the placing plate, inside inner tube compression reset spring with the work piece co-altitude got into the urceolus, reset spring's resilience force promoted the longitudinal movement space of inner tube restriction work piece with work piece both sides chucking, the reset spring that is higher than the work piece height is the state of stretching, and produced vibrations can influence the problem of the stability of work piece on placing the board when having solved marking device's conveying subassembly and conveying placing the board.
Description
Technical Field
The invention relates to the technical field of processing devices, in particular to marking equipment.
Background
The marking equipment is used for printing digital codes, character codes or simple patterns on the workpiece to prevent counterfeiting;
during marking, a workpiece is placed on a placing plate of the existing marking equipment, and the placing plate and the workpiece are conveyed to the position under a marking assembly by a conveying assembly to be marked;
however, the vibration generated when the conveying assembly conveys the placing plate can cause the workpiece to displace on the placing plate and even fall off from the placing plate.
Disclosure of Invention
The invention aims to provide marking equipment, and aims to solve the problem that the stability of a workpiece on a placing plate is influenced by vibration generated when a conveying assembly of the marking equipment conveys the placing plate.
In order to achieve the aim, the invention provides marking equipment which comprises an installation mechanism, a marking mechanism and a plurality of placing mechanisms, wherein the installation mechanism is used for installing a marking mechanism;
the mounting mechanism comprises a workbench, four supporting legs and a conveying assembly, the four supporting legs are respectively and fixedly connected with the workbench and are all positioned on one side of the workbench, the conveying assembly is fixedly connected with the workbench and is all positioned on one side far away from the supporting legs, and the marking mechanism is fixedly connected with the workbench and is all positioned on one side close to the conveying assembly;
the placing mechanism comprises a placing plate, two first cylinders, two first piston rods, two mounting frames, a plurality of outer cylinders, a plurality of reset springs, a plurality of inner cylinders, a plurality of rotating shafts and a plurality of balls, the placing plate is fixedly connected with the conveying assembly and is positioned at one side far away from the workbench, the two first cylinders are respectively and fixedly connected with the placing plate and are positioned at two sides of the placing plate, the two first piston rods are respectively and fixedly connected with output ends of the two first cylinders, the two mounting frames are respectively and fixedly connected with the two first piston rods and are positioned at one side far away from the first cylinders, the outer cylinders are respectively and fixedly connected with the two mounting frames and are positioned at one side far away from the first piston rods, the reset springs are respectively and fixedly connected with the outer cylinders and are positioned in the outer cylinders, the inner barrel is fixedly connected with the reset spring and penetrates through the outer barrel, the rotating shaft is rotatably connected with the inner barrel and located on the inner barrel inner side wall, and the balls are fixedly connected with the rotating shaft and located on the rotating shaft outer side wall.
Slide the work piece into place on the board, the work piece passes through the inner tube compression is the same with the work piece height reset spring gets into inside the urceolus, reset spring's resilience force is with the both sides chucking of work piece, is higher than the work piece height inside the urceolus reset spring is the state of stretching out, reset spring promotes the longitudinal movement space of inner tube restriction work piece.
The placing mechanism further comprises a plurality of limiting blocks, and the limiting blocks are fixedly connected with the inner barrel and located inside the outer barrel.
The diameter of the limiting block is larger than the caliber of the outer barrel, so that the inner barrel can be prevented from being separated from the outer barrel when the inner barrel is pushed by the reset spring to slide in the outer barrel.
The mounting mechanism further comprises four suckers, and the suckers are respectively fixedly connected with the four supporting legs and are located at one side of the workbench.
The sucker increases the contact area between the supporting legs and the placing surface, so that the stability of the workbench supported by the supporting legs is increased.
Wherein, installation mechanism still includes four shock pads, four the shock pad respectively with four sucking disc fixed connection all is located and keeps away from one side of supporting leg.
The shock absorption pad on the sucker can absorb the vibration generated during the working of the conveying assembly, the marking mechanism and the placing mechanism on the workbench, so that the stability of the workbench is improved.
Wherein, installation mechanism still includes two installation covers, two connecting axles and two handles, two the installation cover respectively with workstation fixed connection all is located the workstation lateral wall, two the connecting axle respectively with two the installation cover rotates to be connected, all runs through the installation cover, two the handle respectively with two connecting axle fixed connection all is located the connecting axle lateral wall.
The workbench can be carried by the handle, and the connecting shaft drives the handle to rotate on the mounting sleeve of the workbench according to the force application direction.
Wherein, installation mechanism still includes two bounce-backs and two bounce-backs inhale the piece, two the bounce-backs the ware respectively with workstation fixed connection all is located and is close to one side of installation cover, two the piece is inhaled respectively with two to the bounce-back handle fixed connection all is located and is close to one side of bounce-back ware.
When the handle is not used, the rebounding suction piece on the handle presses the rebounding device, the rebounding suction piece and the handle can be sucked by the magnetic force of the rebounding device, the stability of the handle on the workbench is improved, and when the handle is used, the rebounding suction piece and the handle are released by the rebounding device after the rebounding suction piece is pressed again.
Wherein, marking mechanism is including beating mark subassembly, mounting panel, fan, connecting pipe and high-pressure head, beat the mark subassembly with workstation fixed connection to be located and be close to one side of conveying subassembly, the mounting panel with workstation fixed connection, and be located and be close to one side of conveying subassembly, the fan with the mounting panel is fixed, and is located and is close to beat one side of mark subassembly, the connecting pipe with fan output fixed connection, the high-pressure head with connecting pipe fixed connection, and be located and keep away from one side of fan.
Marking mechanism beat the mark subassembly right place the work piece on the board and beat the mark, beat before the mark, on the mounting panel the fan carries wind to the connecting pipe, follows high pressure head department is spout, beats the mark face with the work piece and goes up remaining impurity and blow off, avoids the work piece to beat impurity influence on the mark face beat the mark effect of beating of mark subassembly to the work piece.
According to the marking device, the workpiece slides onto the placing plate, the workpiece enters the outer barrel through the inner barrel compression and the reset spring with the same height as the workpiece, the two sides of the workpiece are clamped by the resilience force of the reset spring, the reset spring in the outer barrel higher than the workpiece is in the unfolding state, the reset spring pushes the inner barrel to limit the longitudinal moving space of the workpiece, and the problem that the stability of the workpiece on the placing plate is affected by vibration generated when a conveying assembly of the marking device conveys the placing plate is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a marking apparatus provided in the present invention;
FIG. 2 is a cross-sectional view of a marking apparatus of the present invention taken along a second cylinder;
FIG. 3 is a cross-sectional view of a marking apparatus of the present invention taken along a first cylinder;
FIG. 4 is an enlarged view of detail A of FIG. 3;
fig. 5 is a sectional view of the outer cylinder, the return spring, the inner cylinder, the stopper, the rotating shaft, and the balls.
1-an installation mechanism, 2-a placement mechanism, 3-a marking mechanism, 4-a workbench, 5-supporting legs, 6-a transmission component, 7-a placement plate, 8-a first cylinder, 9-a first piston rod, 10-a mounting rack, 11-an outer cylinder, 12-a reset spring, 13-an inner cylinder, 14-a rotating shaft, 15-a ball and 16-a limiting block, 17-a sucker, 18-a shock pad, 19-a mounting sleeve, 20-a connecting shaft, 21-a handle, 22-a rebounder, 23-a rebounding suction sheet, 24-a fan, 25-a connecting pipe, 26-a high pressure head, 27-a marking assembly, 28-a second cylinder, 29-a second piston rod, 30-a pushing plate, 31-a slideway and 32-a mounting plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the present invention provides a marking device, which includes a mounting mechanism 1, a marking mechanism 3 and a plurality of placing mechanisms 2;
the installation mechanism 1 comprises a workbench 4, four supporting legs 5 and a conveying assembly 6, wherein the four supporting legs 5 are respectively and fixedly connected with the workbench 4 and are all positioned at one side of the workbench 4, the conveying assembly 6 is fixedly connected with the workbench 4 and is all positioned at one side far away from the supporting legs 5, and the marking mechanism 3 is fixedly connected with the workbench 4 and is all positioned at one side close to the conveying assembly 6;
the placing mechanism 2 comprises a placing plate 7, two first air cylinders 8, two first piston rods 9, two mounting frames 10, a plurality of outer cylinders 11, a plurality of reset springs 12, a plurality of inner cylinders 13, a plurality of rotating shafts 14 and a plurality of balls 15, the placing plate 7 is fixedly connected with the conveying assembly 6 and is positioned at one side far away from the workbench 4, the two first air cylinders 8 are respectively and fixedly connected with the placing plate 7 and are positioned at two sides of the placing plate 7, the two first piston rods 9 are respectively and fixedly connected with the output ends of the two first air cylinders 8, the two mounting frames 10 are respectively and fixedly connected with the two first piston rods 9 and are positioned at one side far away from the first air cylinders 8, the plurality of outer cylinders 11 are respectively and fixedly connected with the two mounting frames 10 and are positioned at one side far away from the first piston rods 9, the plurality of reset springs 12 are respectively and fixedly connected with the plurality of outer cylinders 11, all be located inside the urceolus 11, it is a plurality of inner tube 13 respectively with a plurality of reset spring 12 fixed connection all runs through urceolus 11, it is a plurality of pivot 14 respectively with a plurality of inner tube 13 rotates to be connected, all is located inner tube 13 inside wall, a plurality of ball 15 respectively with a plurality of pivot 14 fixed connection all is located the 14 lateral walls of pivot.
In this embodiment, the support legs 5 of the mounting mechanism 1 provide stability for the work of the conveying assembly 6, the marking mechanism 3, and the placing mechanism 2 on the table 4, place a workpiece on the placing plate 7 of the placing mechanism 2 of the conveying assembly 6, the conveying assembly 6 conveys the placing plate 7 with the workpiece under the marking mechanism 3, the marking mechanism 3 marks the workpiece, when the workpiece is placed on the placing plate 7, the workpiece slides onto the placing plate 7 in a horizontal state with the placing plate 7, the workpiece is compressed by the inner cylinder 13 and enters the inner cylinder 11 through the return spring 12 having the same height as the workpiece, the resilience of the return spring 12 clamps both sides of the workpiece, the return spring 12 inside the outer cylinder 11 having a height higher than the workpiece is in an extended state, the reset spring 12 pushes the inner cylinder 13 to slide out of the inner cylinder 11 to limit the longitudinal movement space of the workpiece, when the width of the workpiece is larger than that of the placing plate 7, the first cylinder 8 drives the first piston rod 9 to drive the mounting rack 10 to adjust the position according to the width of the workpiece, when the workpiece slides into the placing surface of the placing plate 7, the ball 15 is in contact with the workpiece and passes through the rotating shaft 14 to rotate on the inner cylinder 13 along the moving direction of the workpiece, so that the damage caused by the contact friction between the inner cylinder 13 and the workpiece is avoided, and the problem that the stability of the workpiece on the placing plate 7 is influenced by the vibration generated when the conveying component 6 of the marking device conveys the placing plate 7 is solved.
Further, the placing mechanism 2 further comprises a plurality of limiting blocks 16, and the limiting blocks 16 are respectively fixedly connected with the inner barrel 13 and are located inside the outer barrel 11.
In this embodiment, the diameter of the stopper 16 is larger than the diameter of the outer cylinder 11, so that the inner cylinder 13 is prevented from being separated from the outer cylinder 11 when the return spring 12 pushes the inner cylinder 13 to slide in the outer cylinder 11.
Further, the installation mechanism 1 further comprises four suckers 17, and the four suckers 17 are respectively and fixedly connected with the four support legs 5 and are all positioned on one side far away from the workbench 4; the mounting mechanism 1 further comprises four shock pads 18, and the four shock pads 18 are respectively and fixedly connected with the four suckers 17 and are positioned on one side far away from the supporting leg 5; the mounting mechanism 1 further comprises two mounting sleeves 19, two connecting shafts 20 and two handles 21, the two mounting sleeves 19 are respectively and fixedly connected with the workbench 4 and are positioned on the outer side wall of the workbench 4, the two connecting shafts 20 are respectively and rotatably connected with the two mounting sleeves 19 and penetrate through the mounting sleeves 19, and the two handles 21 are respectively and fixedly connected with the two connecting shafts 20 and are positioned on the outer side wall of the connecting shafts 20; installation mechanism 1 still includes two rebounders 22 and two rebounds and inhales piece 23, two rebounders 22 respectively with 4 fixed connection of workstation all are located and are close to one side of installation cover 19, two the rebounds inhale piece 23 respectively with two handle 21 fixed connection all is located and is close to one side of rebounders 22.
In the present embodiment, the suction cup 17 increases the contact area between the support leg 5 and the placing surface, so as to increase the stability of the support leg 5 supporting the worktable 4, the shock absorbing pad 18 on the suction cup 17 can absorb the vibration generated during the operation of the conveying assembly 6, the marking mechanism 3 and the placing mechanism 2 on the worktable 4, so as to increase the stability of the worktable 4, the worktable 4 can be carried by the handle 21, the connecting shaft 20 drives the handle 21 to rotate on the mounting sleeve 19 of the worktable 4 according to the force application direction, the rebounder 22 is pressed by the rebounding suction piece 23 on the handle 21 when the handle 21 is not used, the rebounding suction piece 23 and the handle 21 can be sucked by the magnetic force of the rebounding device 22, so as to increase the stability of the handle 21 on the worktable 4, when the handle 21 is used, the rebounder 22 is pressed again by the rebounding suction piece 23, and the rebounder 22 releases the rebounding suction piece 23 and the handle 21.
Further, marking mechanism 3 is including marking subassembly 27, mounting panel 32, fan 24, connecting pipe 25 and high-pressure head 26, mark subassembly 27 with workstation 4 fixed connection, and be located and be close to one side of conveying subassembly 6, mounting panel 32 with workstation 4 fixed connection, and be located and be close to one side of conveying subassembly 6, fan 24 with mounting panel 32 is fixed, and is located and is close to one side of marking subassembly 27, connecting pipe 25 with fan 24 output fixed connection, high-pressure head 26 with connecting pipe 25 fixed connection, and be located and keep away from one side of fan 24.
In this embodiment, the marking assembly 27 of the marking mechanism 3 marks the workpiece on the placing plate 7, and before marking, the fan 24 on the mounting plate 32 conveys wind to the connecting pipe 25, and the high pressure head 26 is sprayed out to blow out the residual impurities on the marking surface of the workpiece, so as to avoid the influence of the impurities on the marking surface of the workpiece on the marking effect of the marking assembly 27 on the workpiece.
Further, the marking mechanism 3 further includes a second cylinder 28, a second piston rod 29 and a pushing plate 30, the second cylinder 28 is fixedly connected to the mounting plate 32 and is located at one side far away from the fan 24, the second piston rod 29 is fixedly connected to the output end of the second cylinder 28, and the pushing plate 30 is fixedly connected to the second piston rod 29 and is located at one side far away from the second cylinder 28.
In this embodiment, the second cylinder 28 drives the second piston rod 29 to drive the pushing plate 30 to move towards the placing plate 7, so as to push out the marked workpiece on the placing plate 7 and then reset the workpiece, and an installation position is reserved for the unmarked workpiece.
Further, installation mechanism 1 still includes slide 31, one side of slide 31 with workstation 4 fixed connection to be located and be close to one side of transfer module 6, the opposite side of slide 31 with transfer module 6 fixed connection.
In this embodiment, the workpiece subjected to marking slowly falls onto the workbench 4 under the drainage of the slideway 31, so that the workpiece is prevented from vertically falling and being damaged due to the collision of the workbench 4.
In the marking device of the invention, the supporting legs 5 of the mounting mechanism 1 provide stability for the work of the conveying component 6, the marking mechanism 3 and the placing mechanism 2 on the workbench 4, a workpiece is placed on the placing plate 7 of the placing mechanism 2 of the conveying component 6, the conveying component 6 conveys the placing plate 7 with the workpiece to the right below the marking mechanism 3, the marking mechanism 3 marks the workpiece, when the workpiece is placed on the placing plate 7, the workpiece and the placing plate 7 are in a horizontal state and slide into the placing plate 7, the workpiece is compressed by the inner cylinder 13, the reset spring 12 is in the same height as the workpiece, the workpiece enters the outer cylinder 11, the resilience force of the reset spring 12 clamps two sides of the workpiece, the reset spring 12 in the outer cylinder 11 higher than the workpiece is in an unfolding state, the reset spring 12 pushes the inner cylinder 13 to slide out of the inner cylinder 11 to limit the longitudinal movement space of the workpiece, when the width of the workpiece is larger than that of the placing plate 7, the first cylinder 8 drives the first piston rod 9 to drive the mounting rack 10 to adjust the position according to the width of the workpiece, when the workpiece slides into the placing surface of the placing plate 7, the ball 15 is in contact with the workpiece and passes through the rotating shaft 14 to rotate on the inner cylinder 13 along the moving direction of the workpiece, so that the damage caused by the contact friction between the inner cylinder 13 and the workpiece is avoided, and the problem that the stability of the workpiece on the placing plate 7 is influenced by the vibration generated when the conveying component 6 of the marking device conveys the placing plate 7 is solved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. The marking device is characterized by comprising an installation mechanism, a marking mechanism and a plurality of placing mechanisms;
the mounting mechanism comprises a workbench, four supporting legs and a conveying assembly, the four supporting legs are respectively and fixedly connected with the workbench and are all positioned on one side of the workbench, the conveying assembly is fixedly connected with the workbench and is all positioned on one side far away from the supporting legs, and the marking mechanism is fixedly connected with the workbench and is all positioned on one side close to the conveying assembly;
the placing mechanism comprises a placing plate, two first cylinders, two first piston rods, two mounting frames, a plurality of outer cylinders, a plurality of reset springs, a plurality of inner cylinders, a plurality of rotating shafts and a plurality of balls, the placing plate is fixedly connected with the conveying assembly and is positioned at one side far away from the workbench, the two first cylinders are respectively and fixedly connected with the placing plate and are positioned at two sides of the placing plate, the two first piston rods are respectively and fixedly connected with output ends of the two first cylinders, the two mounting frames are respectively and fixedly connected with the two first piston rods and are positioned at one side far away from the first cylinders, the outer cylinders are respectively and fixedly connected with the two mounting frames and are positioned at one side far away from the first piston rods, the reset springs are respectively and fixedly connected with the outer cylinders and are positioned in the outer cylinders, the inner barrel is fixedly connected with the reset spring and penetrates through the outer barrel, the rotating shaft is rotatably connected with the inner barrel and located on the inner barrel inner side wall, and the balls are fixedly connected with the rotating shaft and located on the rotating shaft outer side wall.
2. Marking device as claimed in claim 1,
the placing mechanism further comprises a plurality of limiting blocks, and the limiting blocks are respectively fixedly connected with the inner barrel and are located inside the outer barrel.
3. Marking device as claimed in claim 1,
the installation mechanism further comprises four suckers, and the suckers are respectively fixedly connected with the four supporting legs and are located on one side of the workbench.
4. Marking device as claimed in claim 3,
the mounting mechanism further comprises four shock pads, and the four shock pads are respectively fixedly connected with the suckers and are located on one side of the supporting leg.
5. Marking device as claimed in claim 1,
installation mechanism still includes two installation covers, two connecting axles and two handles, two the installation cover respectively with workstation fixed connection all is located the workstation lateral wall, two the connecting axle respectively with two the installation cover rotates to be connected, all runs through the installation cover, two the handle respectively with two connecting axle fixed connection all is located the connecting axle lateral wall.
6. Marking device as claimed in claim 5,
installation mechanism still includes two bounce-backs ware and two bounce-backs and inhales the piece, two the bounce-backs ware respectively with workstation fixed connection all is located and is close to one side of installation cover, two the piece is inhaled respectively with two to the bounce-back handle fixed connection all is located and is close to one side of bounce-back ware.
7. Marking device as claimed in claim 1,
marking mechanism is including beating mark subassembly, mounting panel, fan, connecting pipe and high-pressure head, beat the mark subassembly with workstation fixed connection to be located and be close to one side of conveying subassembly, the mounting panel with workstation fixed connection to be located and be close to one side of conveying subassembly, the fan with the mounting panel is fixed, and is located and is close to beat one side of mark subassembly, the connecting pipe with fan output fixed connection, the high-pressure head with connecting pipe fixed connection, and be located and keep away from one side of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929543.1A CN113459682A (en) | 2021-08-13 | 2021-08-13 | Marking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929543.1A CN113459682A (en) | 2021-08-13 | 2021-08-13 | Marking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113459682A true CN113459682A (en) | 2021-10-01 |
Family
ID=77866526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110929543.1A Withdrawn CN113459682A (en) | 2021-08-13 | 2021-08-13 | Marking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113459682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016891A (en) * | 2021-10-21 | 2022-02-08 | 重庆永悦汇管廊科技有限公司 | Assembled building cat ladder |
-
2021
- 2021-08-13 CN CN202110929543.1A patent/CN113459682A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016891A (en) * | 2021-10-21 | 2022-02-08 | 重庆永悦汇管廊科技有限公司 | Assembled building cat ladder |
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Application publication date: 20211001 |
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