Building construction elevator in hoistway

Abstract

The invention discloses a building construction hoist in a hoistway, and relates to the technical field of building hoistway equipment, the building construction hoist comprises a suspension cage and a main steel wire rope, and further comprises a connecting plate and a hydraulic rod, two sides of the top of the connecting plate are fixedly connected with auxiliary steel wire ropes II, and four corners of the bottom of the connecting plate are fixedly connected with auxiliary steel wire ropes I; the bottom of the first auxiliary steel wire rope is fixedly connected with a first drag hook, the first auxiliary steel wire rope penetrates through the corners of the cage, a tension monitoring assembly is arranged on one side of the first auxiliary steel wire rope, a pressure sensor is integrated in the hydraulic rod and used for monitoring tension, and the top of the hydraulic rod is fixedly connected with the bottom of the cage. The bottom of the hydraulic rod is fixedly connected with a bottom plate, the four corners of the top of the bottom plate are fixedly connected with first pull rings, and the problems that only one set of steel wire ropes are used for bearing loads, the load of the cage is increased during loading, the tension on the steel wire ropes is increased, and safety accidents are caused by the risk that the steel wire ropes are prone to breakage after long-term use are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building hoistway equipment, in particular to a hoistway for building construction. Background Art

[0002] During the construction process, due to the material requirements of the construction, it is necessary to use an elevator to transport the materials needed for the construction to the specific construction height through the shaft inside the building. Most of the time, multiple cables are used on the top of the elevator for pulling to spread the tension and reduce the risk of cable breakage.

[0003] Chinese Patent Publication No.: CN221607540U, a standard section-supported traction-type hoist for shaft construction, which drives the wire rope to move through the traction mechanism, and then drives the lifting cage to move up and down with the cooperation of the counterweight mechanism, thereby driving the construction materials and construction personnel on the lifting cage to move up and down. However, there is only one set of wire ropes for bearing the load. When loading, the load of the cage increases, and the tension on the wire rope increases. After long-term use, the wire rope is prone to breakage risk, causing safety accidents. Summary of the invention

[0004] The object of the present invention is to provide a hoist for building construction in a hoistway to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a hoist for building construction in a hoistway, comprising a hoist cage and a main steel wire rope, and further comprising: A connecting plate, both sides of the top of the connecting plate are fixedly connected with auxiliary steel wire ropes 2, and the four corners of the bottom of the connecting plate are fixedly connected with auxiliary steel wire ropes 1 to provide support for the four corners of the cage. The bottom of the auxiliary steel wire rope 1 is fixedly connected with a hook 1, and the auxiliary steel wire rope 1 passes through the corners of the cage and a tension monitoring component is provided on one side of the auxiliary steel wire rope 1; A hydraulic rod, wherein the internal integrated pressure sensor of the hydraulic rod is used to monitor the pulling force, the top of the hydraulic rod is fixedly connected to the bottom of the cage, the bottom of the hydraulic rod is fixedly connected to a bottom plate, the top four corners of the bottom plate are fixedly connected to a pull ring 1, the pull hook 1 is connected to the pull ring 1 hook, and the hydraulic rod pushes the bottom plate downward to keep sufficient tension on the four auxiliary steel wire ropes 1; The top of the cage is fixedly connected with a pull ring 2, the bottom of the main steel wire rope is fixedly connected with a pull hook 2, a through hole is opened in the middle of the connecting plate, the main steel wire rope passes through the inner wall of the through hole of the connecting plate, and the pull hook 2 is connected with the pull ring 2 by a hook.

[0006] Preferably, a fixed frame is provided above the cage, and the fixed frame is installed at the cross beam in the shaft. A traction wheel and an auxiliary wheel are movably installed on both sides of the top of the fixed frame. The auxiliary steel wire rope 2 and the main steel wire rope are wound around the surface of the traction wheel. The auxiliary steel wire rope 2 and the main steel wire rope are rotatably connected to the surface of the auxiliary wheel. A servo motor is installed on one side of the traction wheel for pulling the auxiliary steel wire rope 2 and the main steel wire rope to move. The ends of the auxiliary steel wire rope 2 and the main steel wire rope away from the cage are connected with a counterweight through a hook and a hanging ring.

[0007] Preferably, circular through grooves are provided at the four top corners of the cage, the upper edge of the inner wall of the circular through groove is arranged in an arc surface, the surface of the auxiliary steel wire rope passes through and slides through the inner wall of the circular through groove, and through openings are provided at the four bottom corners of the cage, and the auxiliary steel wire rope passes through the inner wall of the through opening at the bottom of the cage.

[0008] Preferably, the top of the base plate is fixedly connected to a limiting column, the top of the limiting column is fixedly connected to a cushion, the bottom of the cage is fixedly connected to a limiting rod, the tops of the limiting column and the cushion are provided with limiting grooves, and the bottom of the limiting rod is slidably inserted into the inner walls of the limiting grooves of the limiting column and the cushion.

[0009] Preferably, the tension monitoring assembly includes a motor, an electric push rod is fixedly connected to the output shaft end of the motor, a pressure sensing gasket is fixedly connected to the end of the electric push rod away from the motor, a push plate is fixedly connected to the side of the pressure sensing gasket away from the electric push rod, and the side of the push plate away from the pressure sensing gasket is in contact with the side of the auxiliary steel wire rope.

[0010] Preferably, a protective shell 1 is fixedly connected to both sides of the inner wall of the cage, an anti-slip shell 2 is fixedly connected to the side of the inner wall of the cage away from the door, one side of the motor is fixedly connected to the inner wall of the protective shell 1, through grooves are penetrated on both sides of the protective shell 1, the auxiliary steel wire rope 1 penetrates the inner wall of the through groove of the protective shell 1, the side of the protective shell 1 away from the inner wall of the cage is rotatably connected to a side panel through a hinge, the side of the protective shell 1 away from the cage is fixedly connected to a fixed plate, the middle of the fixed plate is slidably connected with a plug plate, the top of the plug plate is fixedly connected to a lifting plate, the top of the side panel is provided with a strip groove, and the bottom of the plug plate is slidably plugged into the inner wall of the strip groove of the side panel.

[0011] Preferably, a handle 1 is fixedly connected to the outer side surface of the side panel, and a handle 2 is fixedly connected to the side of the anti-slip shell 2 away from the cage.

[0012] Preferably, a touch screen is fixedly connected to the inner wall of the cage on the side away from the door, and the pressure sensing gasket and the hydraulic rod are electrically connected to the touch screen via a signal line.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges an auxiliary steel wire rope 1, a bottom plate and a hydraulic rod, opens the hydraulic rod to press down the bottom plate, and a pressure sensor built into the hydraulic rod senses the pressure change, that is, the tension of the auxiliary steel wire rope 1 on the cage as a whole, and takes the middle value of the tension change, so that the main steel wire rope and the auxiliary steel wire rope 2 are subjected to more balanced force, the tension is shared to reduce the probability of breakage, and the two sets of loads are safer and more secure.

[0014] The present invention sets a tension monitoring component, turns on the motor to drive the push plate to press against the surface of the auxiliary steel wire rope 1, monitors the tension change of the single auxiliary steel wire rope 1 through the pressure change sensed by the pressure sensing gasket, and monitors the status of the auxiliary steel wire rope 1 in real time. When the auxiliary steel wire rope 2 and the auxiliary steel wire rope 1 are damaged or broken, the tension of the auxiliary steel wire rope 1 will change and be monitored by the pressure sensing gasket, which is convenient for timely maintenance.

[0015] The present invention arranges a hydraulic rod, and the pressure sensor in the hydraulic rod can also play a role of real-time monitoring of the main steel wire rope. When the main steel wire rope is damaged or broken, the main steel wire rope and the auxiliary steel wire rope bear a greater load, and the pressure sensor in the hydraulic rod feels a greater pressure, so it can be determined that the main steel wire rope is damaged.

[0016] The present invention arranges an auxiliary steel wire rope. When transporting goods, a pair of four auxiliary steel wire ropes also help balance the cage. When the goods and the operator move along the inside of the cage and change the center of gravity, the cage becomes more stable and shakes less because the supporting points of the cage are distributed at the center of the top surface and the four corners of the bottom, thereby improving safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the auxiliary steel wire rope 1 and the bottom plate of the present invention; Figure 3 It is a structural schematic diagram of the cage of the present invention; Figure 4 For the present invention Figure 1 A partial enlarged schematic diagram in the middle; Figure 5 This is a schematic diagram of the internal structure of the cage of the present invention; Figure 6 This is a schematic diagram of the disassembly of a structure of the protective shell of the present invention; Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of point B in the middle.

[0018] In the figure: 1. cage; 2. connecting plate; 3. auxiliary steel wire rope 1; 4. pull hook 1; 5. hydraulic rod; 6. bottom plate; 7. pull ring 1; 8. auxiliary steel wire rope 2; 9. limit column; 10. cushion; 11. limit rod; 12. circular groove; 13. main steel wire rope; 14. pull hook 2; 15. pull ring 2; 16. traction wheel; 17. auxiliary wheel; 18. fixed frame; 19. counterweight; 20. motor; 21. electric push rod; 22. pressure sensing gasket; 23. push plate; 24. protective shell 1; 25. side plate; 26. fixed plate; 27. plug plate; 28. lifting plate; 29. ​​handle 1; 30. protective shell 2; 31. handle 2; 32. touch screen. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 The present invention provides a technical solution: a hoist for building construction in a hoistway, comprising a cage 1 and a main steel wire rope 13, and further comprising: A connecting plate 2, both sides of the top of the connecting plate 2 are fixedly connected with auxiliary steel wire ropes 8, and the four corners of the bottom of the connecting plate 2 are fixedly connected with auxiliary steel wire ropes 3, which provide support for the four corners of the cage 1. The bottom of the auxiliary steel wire rope 3 is fixedly connected with a hook 4, and the auxiliary steel wire rope 3 runs through the corners of the cage 1 and a tension monitoring component is set on one side of the auxiliary steel wire rope 3; Hydraulic rod 5, the internal integrated pressure sensor of hydraulic rod 5 is used to monitor the tension, the top of hydraulic rod 5 is fixedly connected to the bottom of cage 1, the bottom of hydraulic rod 5 is fixedly connected to bottom plate 6, the top four corners of bottom plate 6 are fixedly connected to pull ring 7, the pull hook 4 is connected with the pull ring 7, the hydraulic rod 5 pushes bottom plate 6 to move downward so that four auxiliary steel wire ropes 3 maintain sufficient tension; A pull ring 15 is fixedly connected to the top of the cage 1, a draw hook 14 is fixedly connected to the bottom of the main steel wire rope 13, a through hole is opened in the middle of the connecting plate 2, the main steel wire rope 13 passes through the inner wall of the through hole of the connecting plate 2, and the draw hook 14 is connected to the pull ring 15 by hooking; A fixing frame 18 is arranged above the cage 1, and the fixing frame 18 is installed at the crossbeam in the hoistway. A traction wheel 16 and an auxiliary wheel 17 are movably installed on both sides of the top of the fixing frame 18, and the auxiliary steel wire rope 28 and the main steel wire rope 13 are wound on the surface of the traction wheel 16. The auxiliary steel wire rope 28 and the main steel wire rope 13 are rotatably connected to the surface of the auxiliary wheel 17. A servo motor is installed on one side of the traction wheel 16 for pulling the auxiliary steel wire rope 28 and the main steel wire rope 13 to move. The ends of the auxiliary steel wire rope 28 and the main steel wire rope 13 away from the cage 1 are connected with a counterweight 19 through a hook and a hanging ring, which are used to balance the gravity of the cage 1 and reduce the load of the servo motor; The four corners of the top of the cage 1 are all provided with circular through grooves 12, the upper edge of the inner wall of the circular through groove 12 is set in an arc surface, the surface of the auxiliary steel wire rope 1 3 penetrates and slides through the inner wall of the circular through groove 12, and the four corners of the bottom of the cage 1 are all provided with through openings, the auxiliary steel wire rope 1 3 penetrates the inner wall of the through opening at the bottom of the cage 1, and the auxiliary steel wire rope 1 3 passes through the four corners of the cage 1 to support and limit the four corners of the cage 1; The top of the bottom plate 6 is fixedly connected to the limit column 9, and the top of the limit column 9 is fixedly connected to the soft pad 10. The bottom of the cage 1 is fixedly connected to the limit rod 11. The tops of the limit column 9 and the soft pad 10 are provided with limit grooves. The bottom of the limit rod 11 is slidably inserted into the inner wall of the limit groove of the limit column 9 and the soft pad 10. The limit rod 11 slides along the limit groove of the limit column 9 and the soft pad 10 to limit the bottom plate 6. When the tension of the auxiliary wire rope 3 is uneven or broken, the bottom plate 6 is kept horizontal to avoid damaging the hydraulic rod 5. The tension monitoring component includes a motor 20, the output shaft end of the motor 20 is fixedly connected to an electric push rod 21, the end of the electric push rod 21 away from the motor 20 is fixedly connected to a pressure sensing gasket 22, the side of the pressure sensing gasket 22 away from the electric push rod 21 is fixedly connected to a push plate 23, the side of the push plate 23 away from the pressure sensing gasket 22 is in contact with the side of the auxiliary steel wire rope 3, and the tension of the auxiliary steel wire rope 3 is monitored in real time, and the monitoring of the auxiliary steel wire rope 3 to keep it tight plays an auxiliary support role for the cage 1; A protective shell 24 is fixedly connected to both sides of the inner wall of the cage 1, an anti-skid shell 230 is fixedly connected to the side of the inner wall of the cage 1 away from the door, one side of the motor 20 is fixedly connected to the inner wall of the protective shell 24, both sides of the protective shell 24 are penetrated with through grooves, an auxiliary steel wire rope 3 penetrates the inner wall of the through groove of the protective shell 24, the side of the protective shell 24 away from the inner wall of the cage 1 is rotatably connected to a side plate 25 through a hinge, a fixed plate 26 is fixedly connected to the side of the protective shell 24 away from the cage 1, a plug plate 27 is slidably connected to the middle of the fixed plate 26, a lifting plate 28 is fixedly connected to the top of the plug plate 27, a strip groove is opened on the top of the side plate 25, and the bottom of the plug plate 27 is slidably plugged into the inner wall of the strip groove of the side plate 25, and the protective shell 24 protects the tension monitoring component to avoid damage from bumps; The outer side of the side panel 25 is fixedly connected with a handle 29, and the side of the anti-slip shell 30 away from the cage 1 is fixedly connected with a handle 21, which is convenient for the staff to hold, and holding the handle 29 is convenient for opening and closing the side panel 25; A touch screen 32 is fixedly connected to the inner wall of the cage 1 on the side away from the door. The pressure sensing gasket 22 and the hydraulic rod 5 are electrically connected to the touch screen 32 through a signal line. The touch screen 32 displays the tension of the four auxiliary steel wire ropes 13 and the pressure of the hydraulic rod 5. It is used to monitor whether the auxiliary steel wire rope 13, the auxiliary steel wire rope 28 and the main steel wire rope 13 are damaged. The surface of the touch screen 32 is used to control the hydraulic rod 5 and the motor 20, and the signal line is located inside the protective shell 1 24 and the protective shell 2 30.

[0021] Working principle: The main steel wire rope 13 plays the main load-bearing role. The four auxiliary steel wire ropes 3 pass through the four corners of the cage 1 and are connected to the pull ring 7 through the hook 4. Then the hydraulic rod 5 is controlled to press the bottom plate 6 downward to gradually tighten the auxiliary steel wire rope 3. The built-in pressure sensor of the hydraulic rod 5 monitors the pressure change, that is, the change in the tension of the auxiliary steel wire rope 3 on the cage 1. When the pressure reaches a certain value and no longer changes, the height of the bottom plate 6 remains unchanged, and the cage 1 moves up slightly, indicating that the auxiliary steel wire rope 28 and the auxiliary steel wire rope 3 are moving up. When the entire load is applied, the main steel wire rope 13 no longer generates tension on the cage 1. Therefore, the middle value of the tension change is taken to make the main steel wire rope 13 and the auxiliary steel wire rope 8 bear more balanced forces, share the tension and reduce the probability of breakage. The motor 20 is turned on to drive the push plate 23 to stick to the surface of the auxiliary steel wire rope 3. The pressure change sensed by the pressure sensing gasket 22 is used to monitor the tension change of a single auxiliary steel wire rope 3, and the state of the auxiliary steel wire rope 3 is monitored in real time. When the auxiliary steel wire rope 8 and the auxiliary steel wire rope 1 When the main steel wire rope 13 is damaged or broken, the tension of the auxiliary steel wire rope 3 will change and be monitored by the pressure sensing gasket 22, which is convenient for timely maintenance. The pressure sensor in the hydraulic rod 5 can also play a role of real-time monitoring of the main steel wire rope 13. When the main steel wire rope 13 is damaged or broken, the main steel wire rope 13 and the auxiliary steel wire rope 3 bear a larger load, and the pressure sensor in the hydraulic rod 5 feels a larger pressure, so it can be judged that the main steel wire rope 13 is damaged. When the hydraulic rod 5 is damaged and loses power, the pressure change can be monitored in time, the auxiliary steel wire rope 8 and the auxiliary steel wire rope 3 lose tension, and the main steel wire rope 13 plays an insurance role and can be repaired in time. The limit column 9 and the cushion 10 play a supporting role to prevent the hydraulic rod 5 from being squeezed and damaged. The two sets of load mechanisms are safer and safer and can be monitored in real time, which solves the problem that there is only one set of steel wire ropes for bearing the load. When loading, the load of the cage increases, the tension on the steel wire rope increases, and the steel wire rope after long-term use is prone to the risk of breaking and causing safety accidents. When transporting goods, the four auxiliary steel wire ropes 3 also help to balance the cage 1. When the goods and operators move along the inside of the cage 1 and change their center of gravity, the cage 1 is more stable and shakes less because the support points of the cage 1 are distributed at the center of the top surface and the four corners of the bottom, thereby improving safety and comfort. The lifting plate 28 is lifted to pull the plug plate 27 out of the strip groove of the side plate 25. The side plate 25 is opened to maintain the tension monitoring component inside the protective shell 24.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoist for building construction in a hoistway, comprising a cage (1) and a main steel wire rope (13), characterized in that: Also includes, A connecting plate (2), wherein both sides of the top of the connecting plate (2) are fixedly connected to auxiliary steel wire ropes 2 (8), and the four corners of the bottom of the connecting plate (2) are fixedly connected to auxiliary steel wire ropes 1 (3), providing support force for the four corners of the cage (1), and the bottom of the auxiliary steel wire rope 1 (3) is fixedly connected to a hook 1 (4), the auxiliary steel wire rope 1 (3) passes through the corners of the cage (1) and a tension monitoring component is provided on one side of the auxiliary steel wire rope 1 (3); A hydraulic rod (5), wherein an internally integrated pressure sensor of the hydraulic rod (5) is used to monitor the pulling force, the top of the hydraulic rod (5) is fixedly connected to the bottom of the cage (1), the bottom of the hydraulic rod (5) is fixedly connected to a bottom plate (6), the top four corners of the bottom plate (6) are fixedly connected to a pull ring (7), the pull hook (4) is hooked and connected to the pull ring (7), and the hydraulic rod (5) pushes the bottom plate (6) downward to keep sufficient tension on the four auxiliary steel wire ropes (3); The top of the cage (1) is fixedly connected with a second pull ring (15), the bottom of the main steel wire rope (13) is fixedly connected with a second pull hook (14), a through hole is opened in the middle of the connecting plate (2), the main steel wire rope (13) passes through the inner wall of the through hole of the connecting plate (2), and the second pull hook (14) is connected to the second pull ring (15) by a hook.

2. The hoist for construction in a hoistway according to claim 1, characterized in that: A fixed frame (18) is arranged above the cage (1), and the fixed frame (18) is installed on the cross beam in the hoistway. A traction wheel (16) and an auxiliary wheel (17) are movably installed on both sides of the top of the fixed frame (18). The auxiliary steel wire rope (8) and the main steel wire rope (13) are wound on the surface of the traction wheel (16). The auxiliary steel wire rope (8) and the main steel wire rope (13) are rotatably connected to the surface of the auxiliary wheel (17). A servo motor is installed on one side of the traction wheel (16) for pulling the auxiliary steel wire rope (8) and the main steel wire rope (13) to move. The ends of the auxiliary steel wire rope (8) and the main steel wire rope (13) away from the cage (1) are connected to a counterweight block (19) through a hook and a hanging ring.

3. The hoist for construction in a hoistway according to claim 2, characterized in that: The four corners of the top of the cage (1) are each provided with a circular through groove (12), the upper edge of the inner wall of the circular through groove (12) is arranged in an arc shape, the surface of the auxiliary steel wire rope 1 (3) penetrates and slides through the inner wall of the circular through groove (12), and the four corners of the bottom of the cage (1) are each provided with a through opening, and the auxiliary steel wire rope 1 (3) penetrates the inner wall of the through opening at the bottom of the cage (1).

4. The hoist for construction in a hoistway according to claim 1, characterized in that: The top of the base plate (6) is fixedly connected to a limiting column (9), the top of the limiting column (9) is fixedly connected to a cushion (10), the bottom of the cage (1) is fixedly connected to a limiting rod (11), the tops of the limiting column (9) and the cushion (10) are both provided with limiting grooves, and the bottom of the limiting rod (11) is slidably inserted into the inner walls of the limiting grooves of the limiting column (9) and the cushion (10).

5. The hoist for construction in a hoistway according to claim 1, characterized in that: The tension monitoring component comprises a motor (20), an output shaft end of the motor (20) is fixedly connected to an electric push rod (21), an end of the electric push rod (21) away from the motor (20) is fixedly connected to a pressure sensing gasket (22), a side of the pressure sensing gasket (22) away from the electric push rod (21) is fixedly connected to a push plate (23), and a side of the push plate (23) away from the pressure sensing gasket (22) is in contact with a side surface of the auxiliary steel wire rope (3).

6. The hoist for construction in a hoistway according to claim 5, characterized in that: Both sides of the inner wall of the cage (1) are fixedly connected with a protective shell 1 (24), the side of the inner wall of the cage (1) away from the door is fixedly connected with an anti-slip shell 2 (30), one side of the motor (20) is fixedly connected to the inner wall of the protective shell 1 (24), both sides of the protective shell 1 (24) are penetrated with through grooves, the auxiliary steel wire rope 1 (3) penetrates the inner wall of the through groove of the protective shell 1 (24), the side of the protective shell 1 (24) away from the inner wall of the cage (1) is rotatably connected with a side plate (25) through a hinge, the side of the protective shell 1 (24) away from the cage (1) is fixedly connected with a fixed plate (26), the middle part of the fixed plate (26) is penetrated with a plug plate (27) for sliding connection, the top of the plug plate (27) is fixedly connected with a lifting plate (28), the top of the side plate (25) is provided with a strip groove, and the bottom of the plug plate (27) is slidably plugged into the inner wall of the strip groove of the side plate (25).

7. The hoist for construction in a hoistway according to claim 6, characterized in that: A handle 1 (29) is fixedly connected to the outer side surface of the side plate (25), and a handle 2 (31) is fixedly connected to the side of the anti-slip shell 2 (30) away from the cage (1).

8. The hoist for construction in a hoistway according to claim 5, characterized in that: A touch screen (32) is fixedly connected to a side of the inner wall of the cage (1) away from the door, and the pressure sensing gasket (22) and the hydraulic rod (5) are electrically connected to the touch screen (32) via a signal line.

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