Assistance type water hose winding and unwinding vehicle

Abstract

The utility model relates to the technical field of fire fighting equipment, and discloses a power-assisted type water hose winding and unwinding vehicle which comprises a bottom plate, a controller is arranged at the top of the bottom plate, protruding blocks are symmetrically and fixedly installed at the top of the bottom plate, a push rod is movably arranged between the protruding blocks, supporting columns are symmetrically and fixedly installed at the bottom of the bottom plate, and the supporting columns are movably installed between the protruding blocks. And universal wheels are arranged at the bottom ends of the supporting columns. Water is injected into the water storage tank, then the suction pump is started, the suction pump pumps out the water in the water storage tank through the water pumping pipe, the water is conveyed to the upper connecting tank through the water outlet pipe, and after entering the upper connecting tank, the water flows to the lower connecting tank through the connecting pipe at the bottom; the high-pressure spray heads arranged on one side of the upper connecting box and one side of the lower connecting box in an equidistant communicating mode can spray water out in a high-pressure mode, the water hose winding path is within the spraying range of the high-pressure spray heads, the high-pressure water sprayed out of the high-pressure spray heads can comprehensively and effectively clean the water hose, and the effect of subsequent winding of the water hose is facilitated is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to a power-assisted hose reel vehicle. Background Technology

[0002] In many fields involving the use of water hoses, such as firefighting, agricultural irrigation, and municipal engineering, the deployment and retraction of water hoses has always been an important and challenging task. At a fire scene, time is of the essence. Powered hose reel trucks can quickly lay water hoses to various locations at the fire scene.

[0003] Traditional methods of deploying and retracting fire hoses rely heavily on manual labor, which is not only inefficient but also has many drawbacks. Furthermore, the speed of manual hose laying is limited, and after firefighting, the hoses are often soaked and contaminated with dust, mud, and other impurities. Manually retracting the hoses is extremely laborious, and any remaining impurities may become embedded in the hose surface during the retraction process. When the hose is unrolled for reuse, these embedded impurities act like sandpaper, constantly rubbing against the internal fiber or rubber layers, causing damage to the internal structure. Utility Model Content

[0004] The purpose of this utility model is to provide a power-assisted hose reeling vehicle to facilitate the cleaning of hoses.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power-assisted hose reeling vehicle, comprising a base plate, a controller on the top of the base plate, protrusions symmetrically fixedly mounted on the top of the base plate, push rods movably arranged between the protrusions, support columns symmetrically fixedly mounted on the bottom of the base plate, casters at the bottom of the support columns, a connection port on the surface of the base plate, a winding assembly on the top of the base plate, and auxiliary components on the bottom of the base plate.

[0006] Preferably, the winding assembly includes: a support vertical plate, symmetrically fixedly installed on the top of the base plate; and an electric guide rail, fixedly installed on the top of the base plate.

[0007] Preferably, the interior of the supporting vertical plate is rotatably connected to a rotating shaft via a bearing. A rotating frame is fixedly installed at one end of the rotating shaft, and rotating rods are symmetrically fixedly installed on the opposite side of the rotating frame. A locking rod is fixedly installed at the other end of one of the supporting vertical plates, and a cross-shaped locking groove is provided at the other end of the locking rod. A slide block is slidably connected to the outer wall of the electric guide rail. A connecting block is fixedly installed on the top of the slide block, and a motor is fixedly installed on the top of the connecting block. A cross-shaped locking block is provided at the output end of the motor through a connecting circular plate, and the cross-shaped locking block is engaged with the locking rod through the cross-shaped locking groove.

[0008] The motor acts as the driving source, and its output end has a cross-shaped locking block that engages tightly with the cross-shaped locking groove of the locking rod, thus realizing the efficient and precise transmission of motor power to the supporting vertical plate and rotating frame.

[0009] Preferably, the auxiliary components include: a sorting component disposed at the bottom of the base plate; and a cleaning component disposed on one side of the base plate.

[0010] Preferably, the sorting component includes: a guide rod, fixedly installed at the bottom of the base plate; a second motor, fixedly installed at the top of the base plate; and fixed vertical plates, symmetrically fixedly installed at the bottom of the base plate.

[0011] Preferably, the output end of the second motor is provided with a threaded rod, the other end of which movably passes through the top of the base plate and extends to the bottom of the base plate, and is rotatably connected to the base plate through a bearing. The bottom ends of the guide rod and the threaded rod are respectively fixedly installed with limit circular plates. The surface of the fixed vertical plate is provided with a sliding opening. The outer wall of the threaded rod is threadedly connected with a movable block. The outer wall of the guide rod is slidably fitted with another movable block. A long shaft is fixedly installed between the movable blocks. The long shaft movably passes through the sliding opening and is slidably connected to the fixed vertical plate through the sliding opening. A sorting roller is movably fitted on the outer wall of the long shaft. Connecting plates are fixedly fitted at both ends of the long shaft. A connecting top plate is fixedly installed between the connecting plates. An upper scraper is fixedly installed at the bottom of the connecting top plate. A long shaft is fixedly installed between the fixed vertical plates. The two ends of the long shaft pass through the inner side of the fixed vertical plate and extend to the outer side of the fixed vertical plate, and are fixedly installed with connecting plates. A connecting bottom plate is fixedly installed between the connecting plates. A lower scraper is fixedly installed at the top of the connecting bottom plate.

[0012] During the hose winding process, the motor drives the threaded rod to rotate. Since one movable block is threadedly connected to the threaded rod and the other is slidably fitted with the guide rod, the movable block can move smoothly under the coordinated action of the threaded rod and the guide rod.

[0013] Preferably, the cleaning component includes: a water storage tank, fixedly installed on the top of the base plate; and a fixing plate, symmetrically fixedly installed on one side of the base plate.

[0014] Preferably, the top of the water storage tank is connected to a water inlet pipe, and the top end of the water inlet pipe is connected to a pipe cap by a thread. An upper connecting box and a lower connecting box are symmetrically fixed between the fixing plates. The lower connecting box is located directly below the upper connecting box. A pump is fixedly installed on the top of the upper connecting box. The input end of the pump is connected to a water pump pipe. The other end of the water pump pipe movably passes through the outer wall of the water storage tank and extends into the interior of the water storage tank. The output end of the pump is provided with a water outlet pipe. The other end of the water outlet pipe is connected to the upper connecting box. A connecting pipe is symmetrically connected to the bottom of the upper connecting box. The bottom end of the connecting pipe is connected to the lower connecting box. High-pressure nozzles are equidistantly connected to one side of the upper and lower connecting boxes.

[0015] Water is pumped from the storage tank and transported through the outlet pipe to the upper connecting box. From there, it flows into the lower connecting box through a connecting pipe. Finally, high-pressure water is sprayed from high-pressure nozzles equidistantly positioned on one side of both the upper and lower connecting boxes. This cleans the hose during the winding process.

[0016] This utility model provides a power-assisted hose reeling vehicle. It has the following advantages:

[0017] (1) This utility model injects water into the water storage tank and then starts the pump. The pump draws water out of the water storage tank through the pump pipe and delivers the water to the upper connecting box through the outlet pipe. After the water enters the upper connecting box, it flows to the lower connecting box through the bottom connecting pipe. Finally, the high-pressure nozzles that are equidistantly connected on one side of the upper and lower connecting boxes will spray water in a high-pressure form. The water hose rewinding path is within the spray range of the high-pressure nozzles, so that the high-pressure water sprayed by the high-pressure nozzles can thoroughly and effectively clean the water hose, which is convenient for the subsequent rewinding of the water hose.

[0018] (2) The present invention uses the connecting plates at both ends of the long shaft one, the upper scraper at the bottom of the connecting top plate, and the long shaft two, connecting plate two, and the lower scraper at the top of the connecting bottom plate to clamp the water hose from top to bottom. The remaining water and impurities on the water hose will be scraped off when the water hose passes through the upper scraper and the lower scraper, so as to ensure that the wound water hose is relatively clean and reduce the damage of impurities to the water hose and the winding and unwinding equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a structural view of the winding assembly of this utility model;

[0021] Figure 3 This is a structural view of the components of this utility model;

[0022] Figure 4 This is a cross-sectional view of the cleaning component structure of this utility model.

[0023] In the diagram: 1. Base plate, 2. Controller, 3. Protrusion, 4. Push rod, 5. Rewind assembly, 6. Auxiliary components, 7. Support column, 8. Casters;

[0024] 511 Supporting vertical plate, 512 Rotating shaft, 513 Rotating frame, 514 Rotating rod, 515 Electric guide rail, 516 Slide, 517 Connecting block, 518 Motor 1, 519 Connecting round plate, 5111 Cross locking block, 5112 Locking rod;

[0025] 61 Sorting component, 611 Guide rod, 612 Motor II, 613 Threaded rod, 614 Fixed vertical plate, 615 Movable block, 616 Long shaft I, 617 Sorting roller I, 618 Connecting plate I, 619 Connecting top plate, 6111 Upper scraper, 6112 Long shaft II, 6113 Sorting roller II, 6114 Connecting plate II, 6115 Connecting bottom plate, 6116 Lower scraper;

[0026] 62 Cleaning components, 621 Water storage tank, 622 Water inlet pipe, 623 Pipe cover, 624 Fixing plate, 625 Upper connecting box, 626 Lower connecting box, 627 Connecting pipe, 628 Pump, 629 Water suction pipe, 6211 Water outlet pipe, 6212 High-pressure nozzle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0029] A preferred embodiment of the power-assisted hose reel vehicle provided by this utility model is as follows: Figure 1-4As shown: A power-assisted hose reel cart includes a base plate 1, a controller 2 on the top of the base plate 1, symmetrically fixed protrusions 3 on the top of the base plate 1, push rods 4 movably arranged between the protrusions 3, symmetrically fixed support columns 7 on the bottom of the base plate 1, casters 8 at the bottom of the support columns 7, a connection port on the surface of the base plate 1, a winding assembly 5 on the top of the base plate 1, and auxiliary components 6 on the bottom of the base plate 1. The winding assembly 5 includes: a support vertical plate 511, symmetrically fixedly installed on the top of the base plate 1; an electric guide rail 515, fixedly installed on the top of the base plate 1; and a rotating shaft 512 rotatably connected to the inside of the support vertical plate 511 via bearings. A rotating frame 513 is fixedly installed at one end of the rotating shaft 512. A rotating rod 514 is symmetrically fixedly installed on the opposite side of the rotating frame 513. A locking rod 5112 is fixedly installed at the other end of one of the supporting vertical plates 511. A cross locking groove is opened at the other end of the locking rod 5112. A slide block 516 is slidably connected to the outer wall of the electric guide rail 515. A connecting block 517 is fixedly installed on the top of the slide block 516. A motor 518 is fixedly installed on the top of the connecting block 517. A cross locking block 5111 is set at the output end of the motor 518 through the connecting circular plate 519. The cross locking block 5111 is engaged with the locking rod 5112 through the cross locking groove.

[0030] Furthermore, in this embodiment, by controlling the electric guide rail 515, the cross-shaped locking block 5111 and the locking rod 5112 are separated. After the rotating frame 513 and the rotating rod 514 are free from resistance, the laying begins. The push rod 4 can be adjusted according to the user's preference to push the device cart. The device cart moves through the universal wheels 8. When it is necessary to wind up the water hose, the controller 2 can control the slide block 516 to slide on the outer wall of the electric guide rail 515. The connecting block 517 on the top of the slide block 516 and the motor 518 on the connecting block will move together with the slide block 516 to engage the cross-shaped locking block 5111 and the locking rod 5112. After the engagement is completed, the motor 518 is started. The motor 518 drives the support plate 511, the rotating frame 513 and the rotating rod 5112 to rotate through the connecting round plate 519, the cross-shaped locking block 5111 and the locking rod 5112 to wind up the water hose. Example

[0031] Based on Embodiment 1, a preferred embodiment of the power-assisted hose reel vehicle provided by this utility model is as follows: Figure 1-4As shown: Auxiliary component 6 includes: a sorting component 61, disposed at the bottom of base plate 1; and a cleaning component 62, disposed on one side of base plate 1. The sorting component 61 includes: a guide rod 611, fixedly installed at the bottom of base plate 1; a second motor 612, fixedly installed at the top of base plate 1; and a fixed vertical plate 614, symmetrically fixedly installed at the bottom of base plate 1. The output end of the second motor 612 is provided with a threaded rod 613, the other end of which movably passes through the top of base plate 1 and extends to the bottom of base plate 1, and is rotatably connected to base plate 1 via a bearing. Limiting circular plates are fixedly installed at the bottom ends of the guide rod 611 and the threaded rod 613, respectively. A sliding opening is provided on the surface of the fixed vertical plate 614. A movable block 615 is threadedly connected to the outer wall of the threaded rod 613, and another movable block 615 is slidably sleeved on the outer wall of the guide rod 611. A long shaft 616 is fixedly installed between the movable blocks 615. The long shaft 616 movably passes through the sliding opening and is slidably connected to the fixed vertical plate 614 through the sliding opening. A sorting roller 617 is movably sleeved on the outer wall of the long shaft 616. A connecting plate 618 is fixedly sleeved at both ends of the long shaft 616. A connecting top plate 619 is fixedly installed between the connecting plates 618. An upper scraper 6111 is fixedly installed at the bottom of the connecting top plate 619. A long shaft 6112 is fixedly installed between the fixed vertical plates 614. Both ends of the long shaft 6112 pass through the inner side of the fixed vertical plate 614 and extend to the outer side of the fixed vertical plate 614. A connecting plate 6114 is fixedly installed between the connecting plates 6114. A lower scraper 6116 is fixedly installed at the top of the connecting bottom plate 6115.

[0032] Furthermore, in this embodiment, the motor 612 is started, and the threaded rod 613 at its output end begins to rotate. Since one movable block 615 is slidably sleeved with the guide rod 611 and the other is threadedly connected to the threaded rod 613, when the threaded rod 613 rotates, the movable block 615 threadedly connected to the threaded rod 613 will move along the guide rod 611 and the threaded rod 613. The movable block 615 slidably sleeved with the guide rod 611 will also move synchronously. The long shaft 616 fixed between the two movable blocks 615 and the sorting roller 617 on it will then... The water hose is tidied up to prevent twisting, knotting, and other phenomena. At the same time, the connecting plates 618 at both ends of the long shaft 616, the upper scraper 6111 at the bottom of the connecting top plate 619, the long shaft 6112 between the fixed vertical plate 614, the connecting plate 6114, and the lower scraper 6116 at the top of the connecting bottom plate 6115 will clamp the water hose from the top and bottom. Any remaining water and impurities on the water hose will be scraped off as the water hose passes through the upper scraper 6111 and the lower scraper 6116, ensuring that the wound water hose is relatively clean and reducing the damage of impurities to the water hose and the winding and unwinding equipment. Example

[0033] Based on Embodiments 1 and 2, a preferred embodiment of the power-assisted hose reel vehicle provided by this utility model is as follows: Figure 1-4 As shown: The cleaning component 62 includes: a water storage tank 621, fixedly installed on the top of the base plate 1; fixing plates 624, symmetrically fixedly installed on one side of the base plate 1; a water inlet pipe 622 is connected to the top of the water storage tank 621, and a pipe cap 623 is threadedly connected to the top of the water inlet pipe 622; an upper connecting box 625 and a lower connecting box 626 are symmetrically fixedly installed between the fixing plates 624, the lower connecting box 626 is located directly below the upper connecting box 625, and a pump 628 is fixedly installed on the top of the upper connecting box 625. The input end of the pump 628 is connected to a water pump pipe 629. The other end of the water pump pipe 629 extends through the outer wall of the water storage tank 621 and into the interior of the water storage tank 621. The output end of the pump 628 is connected to a water outlet pipe 6211. The other end of the water outlet pipe 6211 is connected to the upper connecting box 625. The bottom of the upper connecting box 625 is symmetrically connected to a connecting pipe 627. The bottom end of the connecting pipe 627 is connected to the lower connecting box 626. The upper connecting box 625 and the lower connecting box 626 are equidistantly connected to a high-pressure nozzle 6212 on one side.

[0034] Furthermore, in this embodiment, water is injected into the water storage tank 621, the cap 623 of the water inlet pipe 622 at the top of the water storage tank 621 is opened, and water is injected into the water storage tank 621 through the water inlet pipe 622. Then, the pump 628 in the cleaning component 62 is started. The pump 628 draws water out of the water storage tank 621 through the water inlet pipe 629 and delivers the water to the upper connecting box 625 through the water outlet pipe 6211. After entering the upper connecting box 625, the water flows to the lower connecting box 626 through the bottom connecting pipe 627. Finally, the high-pressure nozzles 6212, which are equidistantly connected to the upper connecting box 625 and the lower connecting box 626 on one side, spray water in a high-pressure form. The water hose reeling path is within the spray range of the high-pressure nozzles 6212, and the high-pressure water sprayed by the high-pressure nozzles 6212 can thoroughly and effectively clean the water hose.

[0035] In use, when laying the hose, the cross-shaped locking block 5111 is separated from the locking rod 5112 by controlling the electric guide rail 515. After the rotating frame 513 and rotating rod 514 are free of resistance, laying begins. The push rod 4 can be adjusted according to the user's preference to push the device cart, which moves via the casters 8. When the hose needs to be wound up, the controller 2 can control the slide block 516 to slide on the outer wall of the electric guide rail 515. The connecting block 517 on the top of the slide block 516 and the motor 518 on the connecting block will move together with the slide block 516 to engage the cross-shaped locking block 5111 and the locking rod 5112. After the engagement is completed, the motor 518 is started. Motor 518 drives the support plate 511, rotating frame 513, and rotating rod 5112 to rotate via connecting round plate 519, cross locking block 5111, and locking rod 5112, thereby winding the water hose. When winding the water hose, the tidying component 61 and cleaning component 62 work synchronously. First, water is added to the water storage tank 621. The pipe cover 623 of the water inlet pipe 622 at the top of the water storage tank 621 is opened, and water is injected into the water storage tank 621 through the water inlet pipe 622. Then, the pump 628 in the cleaning component 62 is started. The pump 628 draws water out of the water storage tank 621 through the water suction pipe 629 and delivers the water to the upper connecting box 625 through the water outlet pipe 6211. After entering the upper connecting box 625, the water will flow through the bottom connecting pipe 6211. 27 flows to the lower connecting box 626. Finally, the high-pressure nozzles 6212, which are equidistantly connected to the upper connecting box 625 and the lower connecting box 626 on one side, will spray water in a high-pressure form. The water hose reel path is within the spray range of the high-pressure nozzles 6212. The high-pressure water sprayed by the high-pressure nozzles 6212 can thoroughly and effectively clean the water hose. The motor 612 starts, and the threaded rod 613 at its output end begins to rotate. Since one movable block 615 is slidably sleeved with the guide rod 611 and the other is threadedly connected to the threaded rod 613, when the threaded rod 613 rotates, the movable block 615 threadedly connected to the threaded rod 613 will move along the guide rod 611 and the threaded rod 613, while the movable block 615 slidably sleeved with the guide rod 611 will move along the threaded rod 611 and the threaded rod 613. The movable block 615 will also move synchronously. The long shaft 616 fixed between the two movable blocks 615 and the sorting roller 617 on it will sort the water hose that is being wound up, preventing the water hose from twisting, knotting and other phenomena. At the same time, the connecting plates 618 at both ends of the long shaft 616, the upper scraper 6111 at the bottom of the connecting top plate 619, the long shaft 6112 between the fixed vertical plate 614, the connecting plate 6114, and the lower scraper 6116 at the top of the connecting bottom plate 6115 will clamp the water hose from the top and bottom. The remaining water and impurities on the water hose will be scraped off when the water hose passes through the upper scraper 6111 and the lower scraper 6116, ensuring that the wound water hose is relatively clean and reducing the damage of impurities to the water hose and the winding and unwinding equipment.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power-assisted hose reel truck, comprising a base plate (1), characterized in that: A controller (2) is provided on the top of the base plate (1), and protrusions (3) are symmetrically fixedly installed on the top of the base plate (1). Push rods (4) are movably arranged between the protrusions (3). Support columns (7) are symmetrically fixedly installed on the bottom of the base plate (1). Universal wheels (8) are provided at the bottom end of the support columns (7). A connection port is opened on the surface of the base plate (1). A winding assembly (5) is provided on the top of the base plate (1). An auxiliary component (6) is provided on the bottom of the base plate (1). The auxiliary component (6) includes: The finishing component (61) is set at the bottom of the base plate (1); Cleaning component (62) is located on one side of base plate (1); The finishing component (61) includes: Guide rod (611) is fixedly installed at the bottom of base plate (1); Motor 2 (612) is fixedly installed on the top of the base plate (1); The vertical plate (614) is fixedly installed symmetrically at the bottom of the base plate (1); The cleaning component (62) includes: A water storage tank (621) is fixedly installed on the top of the base plate (1); A fixing plate (624) is symmetrically fixedly installed on one side of the base plate (1); The output end of the second motor (612) is provided with a threaded rod (613). The other end of the threaded rod (613) movably passes through the top of the base plate (1) and extends to the bottom of the base plate (1), and is rotatably connected to the base plate (1) through a bearing. The bottom ends of the guide rod (611) and the threaded rod (613) are respectively fixedly installed with limit circular plates. The surface of the fixed vertical plate (614) is provided with a sliding opening. The outer wall of the threaded rod (613) is threaded with a movable block (615). The outer wall of the guide rod (611) is slidably fitted with another movable block (615). A long shaft (616) is fixedly installed between the movable blocks (615). The long shaft (616) movably passes through the sliding opening and is slidably connected to the fixed vertical plate (614) through the sliding opening. (616) has a sorting roller (617) movably sleeved on its outer wall. The two ends of the long shaft (616) are respectively fixedly sleeved with connecting plates (618). A connecting top plate (619) is fixedly installed between the connecting plates (618). An upper scraper (6111) is fixedly installed at the bottom of the connecting top plate (619). A long shaft (6112) is fixedly installed between the fixed vertical plates (614). The two ends of the long shaft (6112) pass through the inner side of the fixed vertical plate (614) and extend to the outer side of the fixed vertical plate (614), and a connecting plate (6114) is fixedly installed thereon. A connecting bottom plate (6115) is fixedly installed between the connecting plates (6114). A lower scraper (6116) is fixedly installed at the top of the connecting bottom plate (6115). The top of the water storage tank (621) is connected to an inlet pipe (622), and the top end of the inlet pipe (622) is connected to a pipe cap (623) by a thread. An upper connecting box (625) and a lower connecting box (626) are symmetrically fixedly installed between the fixing plates (624). The lower connecting box (626) is located directly below the upper connecting box (625). A pump (628) is fixedly installed on the top of the upper connecting box (625), and a pumping pipe (629) is connected to the input end of the pump (628). The pumping pipe (629)... The other end extends through the outer wall of the water storage tank (621) and into the interior of the water storage tank (621). The output end of the pump (628) is provided with a water outlet pipe (6211). The other end of the water outlet pipe (6211) is connected to the upper connecting box (625). The bottom of the upper connecting box (625) is symmetrically connected with a connecting pipe (627). The bottom end of the connecting pipe (627) is connected to the lower connecting box (626). The upper connecting box (625) and the lower connecting box (626) are equidistantly connected on one side with high-pressure nozzles (6212).

2. The assisted hose reel vehicle according to claim 1, characterized in that: The winding assembly (5) includes: The supporting vertical plate (511) is symmetrically fixed on the top of the base plate (1); The electric guide rail (515) is fixedly installed on the top of the base plate (1).

3. The assisted hose reel vehicle according to claim 2, characterized in that: The interior of the supporting vertical plate (511) is rotatably connected to a rotating shaft (512) via a bearing. A rotating frame (513) is fixedly installed at one end of the rotating shaft (512). A rotating rod (514) is symmetrically fixedly installed on one side of the rotating frame (513). A locking rod (5112) is fixedly installed at the other end of one of the supporting vertical plates (511). A cross locking groove is provided at the other end of the locking rod (5112). A slide block (516) is slidably connected to the outer wall of the electric guide rail (515). A connecting block (517) is fixedly installed on the top of the slide block (516). A motor (518) is fixedly installed on the top of the connecting block (517). A cross locking block (5111) is provided at the output end of the motor (518) via a connecting circular plate (519). The cross locking block (5111) is engaged with the locking rod (5112) through the cross locking groove.

Images