Feeding device for assembling and machining suite of pneumatic connector

Abstract

The utility model relates to the field of pneumatic connector suite feeding devices, in particular to a pneumatic connector assembly machining suite feeding device, and solves the technical problems that pneumatic connector sealing rings are uniformly fed by a conveying machine after being packaged, and irreversible deformation is easily generated due to mutual collision and extrusion of the sealing rings during tight packaging and transportation. The sealing performance of the assembled pneumatic joint is reduced; according to the technical scheme, the pneumatic connector assembling and machining suite feeding device comprises a feeding box body, a cooling fan structure, a sliding loading and unloading table assembly, a sliding loading and unloading strip assembly, a sealing ring fixing assembly, a linear motor and a transverse conveying assembly, the feeding box body is a box body with doors on the two sides, and the sliding loading and unloading table assembly is arranged on a bottom plate of the feeding box body; a sliding loading-unloading strip assembly is arranged on the upper surface of the sliding loading-unloading table assembly; the sealing ring is connected to the outer side of the columnar rod in a sleeving mode through the sealing ring fixing assembly, irreversible deformation caused by scattered stacking and extrusion of the sealing ring is prevented, and the sealing performance of the sealing ring is improved.

Description

Technical Field

[0001] The utility model belongs to the field of pneumatic joint kit feeding devices, in particular to a pneumatic joint assembly processing kit feeding device. Background Art

[0002] A pneumatic joint is a device used to connect and disconnect pipes in a pneumatic system. It is designed to achieve convenient and quick operation when the system needs to be connected or disconnected. It is assembled and processed by a pneumatic joint body, connecting pipe fittings, interface sealing rings, threaded sealants and other processing kits. Compared with sealing rings for conveying liquids, sealing rings for pneumatic joints are generally smaller in size and thickness due to the lower internal pressure they bear. They are more sensitive to external extrusion and impact. When responding to external forces, if they are not properly protected, they are prone to irreversible deformation, which has an adverse effect on the sealing effect.

[0003] After the existing pneumatic joint sealing rings are produced, they are often packaged and then transported by a robotic arm or a conveyor belt. Due to the tight packaging, some sealing rings may undergo irreversible deformation due to mutual friction and extrusion during transportation, causing their appearance to change and their elasticity to be lost, thereby adversely affecting the sealing of the assembled pneumatic joint.

[0004] Therefore, in order to solve the problem that the sealing rings of the pneumatic joints mentioned above are packaged after production and transported uniformly by a robotic arm or a conveyor belt, and the sealing rings are tightly packed and squeezed against each other during transportation, which can easily cause irreversible deformation and damage the sealing of the assembled pneumatic joints, a feeding device for a pneumatic joint assembly processing kit is developed. By adding a stacking and fixing structure that matches the shape of the sealing ring to the sealing ring feeding device, the mutual squeezing generated in the packaging bag during transportation is reduced, deformation is prevented, and the airtightness of the assembled pneumatic joints is improved. Utility Model Content

[0005] In order to overcome the problem that the sealing rings of pneumatic joints are packaged and then uniformly fed by a conveying machine, the sealing rings may collide and squeeze with each other during tight packaging and transportation, which may easily cause irreversible deformation and reduce the sealing performance of the pneumatic joints after assembly.

[0006] The technical solution of the utility model is: a feeding device for a pneumatic joint assembly processing kit, including a feeding box, a cooling fan structure, a sliding loading and unloading platform assembly, a sliding loading and unloading bar assembly, a sealing ring fixing assembly, a linear motor, and a transverse transport assembly. The feeding box is a box with doors on both sides, a sliding loading and unloading platform assembly is arranged on the bottom plate of the feeding box, a sliding loading and unloading bar assembly is arranged on the upper surface of the sliding loading and unloading platform assembly, a sealing ring fixing assembly with a stacking and placing function is arranged on the upper surface of the sliding loading and unloading bar assembly, and a transverse transport assembly fixed to the ceiling is arranged above the feeding box.

[0007] Preferably, the heat dissipation fan structure is used to speed up the air flow inside the feeding box to remove the internal moisture, and the sealing ring is air-dried to prevent it from absorbing moisture and causing expansion to affect the sealing. The sliding loading and unloading platform assembly cooperates with the sliding loading and unloading bar assembly, and the slider cooperates with the slide groove to facilitate the extraction of the sealing ring fixing assembly stored in the feeding box for loading and unloading, thereby reducing the surrounding obstruction during loading and unloading and saving the labor cost during loading and unloading. The sealing ring fixing assembly prevents the irreversible deformation caused by the scattered stacking and squeezing of the sealing ring by sleeve-connecting the sealing ring to the outside of the columnar rod, thereby improving the sealing performance of the sealing ring. The linear motor cooperates with the horizontal transport assembly to facilitate the use of the motor to drive the pulley to quickly transport large quantities of sealing rings to the designated unloading point, and the high-altitude transportation does not occupy the factory working space, thus saving the labor cost and space cost during feeding.

[0008] Preferably, a cooling fan structure is provided on both sides of the feeding box, one of the two cooling fan structures has a wind direction toward the feeding box, and the other has a wind direction toward the outside of the feeding box. Through the two cooling fan structures with different wind directions at different heights, the air outside the feeding box is sent in from one end and then sent out from the other end. By accelerating the air circulation speed, the sealing ring in the feeding box is dried to prevent the sealing ring from deforming and expanding due to the absorption of water vapor in the air during transportation, thereby preventing its sealing performance from being adversely affected.

[0009] Preferably, the sliding loading and unloading platform assembly includes a loading and unloading plate, a No. 1 sliding block, and a No. 1 sliding groove. Two loading and unloading plates are mirror-imaged inside the feeding box. A T-shaped No. 1 sliding block is provided on the lower surface of the loading and unloading plate. A No. 1 sliding groove matched with the No. 1 sliding block is provided on the bottom plate of the feeding box. The No. 1 sliding block sliding in the No. 1 sliding groove drives the loading and unloading plate to slide, so that the loading and unloading plate can be pulled out of the outside of the feeding box to avoid obstruction inside the feeding box, thereby saving labor costs during loading and unloading.

[0010] Preferably, the sliding loading and unloading bar assembly includes a loading and unloading slide bar, a No. 2 sliding block, a No. 2 sliding groove, and a sliding wheel. A loading and unloading slide bar is arranged above the loading and unloading plate, and the No. 2 sliding block is fixedly connected to the lower surface of the loading and unloading slide bar, and a No. 2 sliding groove with an inverted T-shaped cross-section that matches the No. 2 sliding block is opened on the upper surface of the loading and unloading plate. A sliding wheel with a diameter larger than the width of the No. 2 sliding block is rotatably connected to the lower surface of the No. 2 sliding block, and the diameter of the sliding wheel is matched with the lower half of the T-shape of the No. 2 sliding groove. The sliding of the sliding wheel in the No. 2 sliding groove drives the loading and unloading slide bar to be pulled out of the outside of the loading and unloading plate, and the No. 2 sliding block is used to limit the rotation of the loading and unloading slide bar to avoid interference caused by adjacent fixed rods during loading and unloading, thereby saving labor costs during loading and unloading.

[0011] Preferably, the sealing ring fixing assembly includes a fixing rod, a fixing screw hole, and a limit plate. A plurality of fixing rods are arranged above the loading and unloading slide bar. A plurality of fixing screw holes compatible with the fixing rods are opened on the upper surface of the loading and unloading slide bar. The fixing rod is screwed and installed on the inner side of the fixing screw hole through the threaded structure at the lower end. Limit plates screwed and installed through threads are arranged at the upper and lower ends of the fixing rod. The outer diameter of the limit plate is larger than the outer diameter of the sealing ring. By sleeve-fitting the sealing ring on the outer side of the fixing rod, the irreversible deformation caused by the random stacking and extrusion of the sealing ring can be prevented, thereby improving the sealing performance of the sealing ring. At the same time, the limit plate can prevent the sealing ring from falling off from the upper end of the fixing rod due to vibration during transportation.

[0012] Preferably, the upper surface of the feeding box is fixedly connected to the lower end of the transmission element of the linear motor, and the upper surface of the linear motor is fixedly connected to the transverse transport component. The feeding box can be moved up and down by the linear motor and suspended above the working area in the factory to reduce the space occupied during feeding, so as to make full use of the internal space of the factory and improve space utilization.

[0013] Preferably, the transverse transport component includes a rotating motor, a guide wheel, and a guide rail. The upper surface of the linear motor is fixedly connected to the rotating motor by a Z-shaped connecting rod. The end of the transmission element of the rotating motor is connected to the guide wheel. The side of the rotating motor is provided with a guide rail with a T-shaped cross-section that matches the guide wheel. The width of the T-shaped outer opening of the guide rail is smaller than the outer diameter of the guide wheel. The guide wheel is slidably connected to the guide rail. The guide rail is fixed to the ceiling by a connecting column on the upper surface. The guide wheel is driven by the rotating motor to move in the guide rail, so that a large number of sealing rings can be quickly transported to the designated unloading point, saving the labor cost when transporting the sealing rings.

[0014] Beneficial effects of the utility model:

[0015] 1. The cooling fan structure accelerates the air flow inside the feeding box to remove the internal moisture, and the sealing ring is air-dried to prevent it from absorbing moisture and expanding to affect the sealing performance. The sliding loading and unloading platform assembly cooperates with the sliding loading and unloading bar assembly. The slider cooperates with the slide groove to facilitate the extraction of the sealing ring fixing assembly stored in the feeding box for loading and unloading, thereby reducing the surrounding obstruction during loading and unloading and saving the labor cost during loading and unloading. The sealing ring fixing assembly prevents the irreversible deformation caused by the scattered stacking and extrusion of the sealing ring by sleeve-connecting the sealing ring to the outside of the columnar rod, thereby improving the sealing performance of the sealing ring. The linear motor cooperates with the horizontal transport assembly to facilitate the use of the motor to drive the pulley to quickly transport large quantities of sealing rings to the designated unloading point, and the high-altitude transportation does not occupy the factory working space, saving the labor cost and space cost during feeding.

[0016] 2. Use a pair of cooling fans to accelerate the air convection speed in the feeding box to air-dry the transported sealing ring to prevent the sealing ring from absorbing air moisture and expanding during transportation, thereby damaging the sealing performance.

[0017] 3. The loading and unloading plates and loading and unloading slides pulled out through the slide grooves enable the fixed rod to be pulled out of the feeding box for loading and unloading, avoiding surrounding obstructions and saving labor costs during loading and unloading.

[0018] 4. Use a fixing rod to connect the sealing rings to prevent the sealing rings from colliding during transportation and causing irreversible deformation that damages the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 What is shown is a three-dimensional structural schematic diagram of a feeding device No. 1 of a pneumatic joint assembly processing kit of the utility model;

[0020] Figure 2 What is shown is a schematic diagram of the three-dimensional structure of a feeding device No. 2 of a pneumatic joint assembly processing kit of the utility model;

[0021] Figure 3 What is shown is a three-dimensional structural diagram of a cooling fan structure of a feeding device of a pneumatic joint assembly processing kit of the utility model;

[0022] Figure 4 What is shown is a three-dimensional structural schematic diagram of a sliding loading and unloading platform assembly of a pneumatic joint assembly processing kit feeding device of the utility model;

[0023] Figure 5 The three-dimensional structure diagram of the sliding loading and unloading strip component and the sealing ring fixing component of the feeding device of the pneumatic joint assembly processing kit of the utility model is shown;

[0024] Figure 6 Shown is a three-dimensional structural schematic diagram of a linear motor and a transverse transport component of a pneumatic joint assembly and processing kit feeding device of the utility model.

[0025] Explanation of the accompanying drawings: 1. Feeding box; 2. Cooling fan structure; 3. Sliding loading and unloading platform assembly; 4. Sliding loading and unloading bar assembly; 5. Sealing ring fixing assembly; 6. Linear motor; 7. Horizontal transport assembly; 301. Loading and unloading plate; 302. Sliding block No. 1; 303. Sliding groove No. 1; 401. Loading and unloading slide bar; 402. Sliding block No. 2; 403. Sliding groove No. 2; 404. Sliding wheel; 501. Fixing rod; 502. Fixing screw hole; 503. Limiting plate; 701. Rotating motor; 702. Guide wheel; 703. Guide track. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figure 1-2The utility model provides an embodiment: a feeding device for a pneumatic joint assembly processing kit, comprising a feeding box 1, a cooling fan structure 2, a sliding loading and unloading platform assembly 3, a sliding loading and unloading bar assembly 4, a sealing ring fixing assembly 5, a linear motor 6, and a transverse transport assembly 7. The feeding box 1 is a box with doors on both sides. A sliding loading and unloading platform assembly 3 is arranged on the bottom plate of the feeding box 1, a sliding loading and unloading bar assembly 4 is arranged on the upper surface of the sliding loading and unloading platform assembly 3, a sealing ring fixing assembly 5 with a stacking function is arranged on the upper surface of the sliding loading and unloading bar assembly 4, and a transverse transport assembly 7 fixed to the ceiling is arranged above the feeding box 1. By adding a stacking fixing structure that matches the shape of the sealing ring to the sealing ring feeding device, the mutual extrusion generated in the packaging bag during transportation is reduced, and deformation is prevented to improve the air tightness of the assembled pneumatic joint.

[0028] See also Figure 3 In this embodiment, a cooling fan structure 2 is respectively provided on both sides of the feeding box 1. One of the two cooling fan structures 2 has a wind direction toward the inside of the feeding box 1, and the other has a wind direction toward the outside of the feeding box 1. Through the two cooling fan structures 2 with different wind directions and heights, the air outside the feeding box 1 is sent in from one end and then sent out from the other end. By accelerating the circulation speed of the air, the sealing ring in the feeding box 1 is dried to prevent the sealing ring from deforming and expanding due to the absorption of moisture in the air during transportation, thereby causing adverse effects on its sealing performance.

[0029] See also Figure 4-5In this embodiment, the sliding loading and unloading platform assembly 3 includes a loading and unloading plate 301, a No. 1 sliding block 302, and a No. 1 sliding groove 303. Two loading and unloading plates 301 are arranged in a mirror image in the feeding box 1. A T-shaped No. 1 sliding block 302 is arranged on the lower surface of the loading and unloading plate 301. The bottom plate of the feeding box 1 is provided with a No. 1 sliding groove 303 adapted to the No. 1 sliding block 302. The sliding loading and unloading bar assembly 4 includes a loading and unloading slide bar 401, a No. 2 sliding block 402, a No. 2 sliding groove 403, and a sliding wheel 404. The loading and unloading slide bar 401 is arranged above the loading and unloading plate 301. The lower surface of the unloading slide bar 401 is fixedly connected with a No. 2 sliding block 402, and the upper surface of the loading and unloading plate 301 is provided with a No. 2 sliding groove 403 with an inverted T-shaped cross section adapted to the No. 2 sliding block 402. The lower surface of the No. 2 sliding block 402 is rotatably connected with a sliding wheel 404 with a diameter greater than the width of the No. 2 sliding block 402, and the diameter of the sliding wheel 404 is adapted to the lower half of the T-shaped No. 2 sliding groove 403. The sealing ring fixing component 5 includes a fixing rod 501, a fixing screw hole 502, and a limiting plate 503. A plurality of fixing rods 501 are arranged above the loading and unloading slide bar 401. The upper surface of the loading and unloading slide bar 401 is provided with a plurality of fixing screw holes 502 adapted to the fixing rod 501. The fixing rod 501 is screwed and installed on the inner side of the fixing screw hole 502 through the threaded structure at the lower end. The upper and lower ends of the fixing rod 501 are both provided with limit plates 503 screwed and installed through threads. The outer diameter of the limit plate 503 is larger than the outer diameter of the sealing ring. The No. 1 sliding block 302 sliding in the No. 1 sliding groove 303 drives the loading and unloading plate 301 to slide, so that the loading and unloading plate 301 can be pulled out of the outside of the feeding box 1 to avoid the obstruction of the inside of the feeding box 1, thereby saving manpower when loading and unloading. The labor cost is reduced by sliding the sliding wheel 404 in the No. 2 sliding groove 403, driving the loading and unloading slide bar 401 to be pulled out of the outside of the loading and unloading plate 301, and the No. 2 sliding block 402 is used to limit the rotation of the loading and unloading slide bar 401 to avoid interference caused by the adjacent fixed rod 501 during loading and unloading, thereby saving the labor cost during loading and unloading. The sealing ring is sleeved on the outside of the fixed rod 501 to prevent the irreversible deformation caused by the scattered stacking and squeezing of the sealing ring, thereby improving the sealing performance of the sealing ring. At the same time, the limit plate 503 can prevent the sealing ring from falling off from the upper end of the fixed rod 501 due to vibration during transportation.

[0030] See also Figure 6In this embodiment, the upper surface of the feeding box 1 is fixedly connected to the lower end of the transmission element of the linear motor 6, and the upper surface of the linear motor 6 is fixedly connected to the transverse transport component 7. The transverse transport component 7 includes a rotary motor 701, a guide wheel 702, and a guide track 703. The upper surface of the linear motor 6 is fixedly connected to the rotary motor 701 through a Z-shaped connecting rod. The end of the transmission element of the rotary motor 701 is connected to the guide wheel 702. The side of the rotary motor 701 is provided with a guide track 703 with a T-shaped cross-section adapted to the guide wheel 702. The T-shaped outer surface of the guide track 703 The opening width is smaller than the outer diameter of the guide wheel 702, and the guide wheel 702 is slidably connected to the guide track 703. The guide track 703 is fixed to the ceiling through the connecting column on the upper surface. The feeding box 1 can be moved up and down by the linear motor 6 and suspended above the working area in the factory to reduce the space occupied during feeding, so as to make full use of the internal space of the factory and improve space utilization. The guide wheel 702 is driven by the rotating motor 701 to move in the guide track 703, and a large number of sealing rings are quickly transported to the designated unloading point, saving the labor cost when transporting the sealing rings.

[0031] When working, first, turn the handle to open the door panels on both sides of the feeding box 1, then pull the loading and unloading slide bar 401 to make the No. 2 sliding block 402 and the sliding wheel 404 connected to its lower end slide along the No. 2 sliding groove 403, so that the loading and unloading slide bar 401 moves toward the outside of the feeding box 1, and when the No. 2 sliding block 402 moves to the end of the No. 2 sliding groove 403, continue to pull the loading and unloading slide bar 401 to drive the loading and unloading plate 301, so that the No. 1 sliding block 302 under the loading and unloading plate 301 moves along the No. 1 sliding groove 303, so that the loading and unloading plate 301 moves along the No. 1 sliding groove 303 to the outside of the feeding box 1, and pull the loading and unloading slide bar 401 and the loading and unloading plate 301 to the outside of the feeding box 1 to avoid surrounding obstructions and facilitate loading and unloading;

[0032] Then, hold the fixing rod 501 and twist it so that the thread at its lower end rotates along the fixing screw hole 502, thereby removing the fixing rod 501, and then use the thread to twist to remove the limiting plate 503 at the top of the fixing rod 501, and stack the sealing rings to be transported on the outside of the fixing rod 501 to avoid the irreversible deformation caused by the random stacking and extrusion of the sealing rings that damages the sealing performance, and then use the thread to twist to install the limiting plate 503 on the top of the fixing rod 501 to prevent the sealing ring from falling from the top during transportation, and then install the fixing rod 501 in the fixing screw hole 502 by threading to complete the loading of the sealing ring, and repeat this step so that all the fixing rods 501 complete the assembly of the sealing rings, and then push the loading and unloading plate 301 and the loading and unloading slide bar 401 to make them be stored in the feeding box 1 along the sliding groove;

[0033] After that, the power switch is turned on to start the cooling fan structure 2 to send the air outside the feeding box 1 from one end and then send it out from the other end, so as to speed up the circulation of the air inside the feeding box 1 and dry the sealing ring to prevent it from deforming and expanding due to the moisture in the air, thereby adversely affecting its sealing performance.

[0034] Finally, the switch of the linear motor 6 is turned on to shrink its transmission element, driving the feeding box 1 to rise into the air, so that it can be suspended above the working area in the factory during transportation to reduce the space occupied during feeding. The rotary motor 701 is then turned on to drive the guide wheel 702 to rotate and move in the guide track 703, quickly transporting a large number of sealing rings to the top of the designated unloading point. The transmission element of the linear motor 6 is then extended to drive the feeding box 1 to descend to complete the feeding.

[0035] Through the above steps, the sealing ring fixing component 5 improves the sealing performance of the sealing ring by sleeved on the outside of the columnar rod to prevent the sealing ring from being scattered and squeezed and caused by irreversible deformation, and solves the problem that the sealing rings of pneumatic joints are packaged and then fed uniformly by a conveying machine. Due to the tight packaging and transportation, the sealing rings collide and squeeze with each other during transportation, which easily causes irreversible deformation and reduces the sealing performance of the pneumatic joints after assembly.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A feeding device for a pneumatic joint assembly processing kit, comprising a feeding box (1), characterized in that: The invention also comprises a cooling fan structure (2), a sliding loading and unloading platform assembly (3), a sliding loading and unloading bar assembly (4), a sealing ring fixing assembly (5), a linear motor (6), and a transverse transport assembly (7). The feeding box (1) is a box with doors on both sides. The bottom plate of the feeding box (1) is provided with a sliding loading and unloading platform assembly (3), the upper surface of the sliding loading and unloading platform assembly (3) is provided with a sliding loading and unloading bar assembly (4), the upper surface of the sliding loading and unloading bar assembly (4) is provided with a sealing ring fixing assembly (5) with a stacking function, and a transverse transport assembly (7) fixed to the ceiling is provided above the feeding box (1).

2. A pneumatic joint assembly processing kit feeding device according to claim 1, characterized in that: A heat dissipation fan structure (2) is respectively arranged on both sides of the feeding box (1); one of the two heat dissipation fan structures (2) directs wind toward the inside of the feeding box (1), and the other directs wind toward the outside of the feeding box (1).

3. A feeding device for a pneumatic joint assembly processing kit according to claim 1, characterized in that: The sliding loading and unloading platform assembly (3) comprises a loading and unloading plate (301), a No. 1 sliding block (302), and a No. 1 sliding groove (303). Two loading and unloading plates (301) are arranged in a mirror image in the feeding box (1). A T-shaped No. 1 sliding block (302) is arranged on the lower surface of the loading and unloading plate (301). The inner bottom plate of the feeding box (1) is provided with a No. 1 sliding groove (303) adapted to the No. 1 sliding block (302).

4. A feeding device for a pneumatic joint assembly processing kit according to claim 3, characterized in that: The sliding loading and unloading bar assembly (4) comprises a loading and unloading sliding bar (401), a No. 2 sliding block (402), a No. 2 sliding groove (403), and a sliding wheel (404). The loading and unloading sliding bar (401) is arranged above the loading and unloading plate (301). The No. 2 sliding block (402) is fixedly connected to the lower surface of the loading and unloading sliding bar (401). The No. 2 sliding groove (403) with an inverted T-shaped cross section that matches the No. 2 sliding block (402) is opened on the upper surface of the loading and unloading plate (301). The No. 2 sliding block (402) is rotatably connected to the lower surface of the No. 2 sliding block (402). The diameter of the sliding wheel (404) is matched with the lower half of the T-shape of the No. 2 sliding groove (403).

5. A pneumatic joint assembly processing kit feeding device according to claim 4, characterized in that: The sealing ring fixing assembly (5) comprises a fixing rod (501), a fixing screw hole (502), and a limiting plate (503). A plurality of fixing rods (501) are arranged above the loading and unloading slide bar (401). A plurality of fixing screw holes (502) matching the fixing rods (501) are provided on the upper surface of the loading and unloading slide bar (401). The fixing rods (501) are screwed and installed on the inner side of the fixing screw hole (502) through a threaded structure at the lower end. Limiting plates (503) screwed and installed through threads are arranged at the upper and lower ends of the fixing rods (501). The outer diameter of the limiting plate (503) is larger than the outer diameter of the sealing ring.

6. A pneumatic joint assembly processing kit feeding device according to claim 1, characterized in that: The upper surface of the feeding box (1) is fixedly connected to the lower end of the transmission element of the linear motor (6), and the upper surface of the linear motor (6) is fixedly connected to the transverse transport component (7).

7. A pneumatic joint assembly processing kit feeding device according to claim 6, characterized in that: The transverse transport component (7) comprises a rotating motor (701), a guide wheel (702), and a guide track (703); the upper surface of the linear motor (6) is fixedly connected to the rotating motor (701) via a Z-shaped connecting rod; the end of the transmission element of the rotating motor (701) is connected to the guide wheel (702); the side of the rotating motor (701) is provided with a guide track (703) with a T-shaped cross-section that matches the guide wheel (702); the width of the T-shaped outer opening of the guide track (703) is smaller than the outer diameter of the guide wheel (702); the guide wheel (702) is slidably connected to the guide track (703); and the guide track (703) is fixed to the ceiling via a connecting column on the upper surface.

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