Light single-beam hoisting equipment and mounting and using method thereof

Abstract

According to the light single-beam hoisting equipment and the mounting and using methods thereof, the problem that an existing crane is prone to colliding with facilities in a foundation pit is solved. The supporting cross beam is fixed to the top of a foundation pit, the moving device and the lifting appliance are installed on the supporting cross beam, a rectangular frame of the moving device is arranged on the outer side of the supporting cross beam in a sleeving mode, a pair of gear mechanisms are symmetrically arranged along the axis of the supporting cross beam, and bearing gears of the gear mechanisms are meshed with gear rails fixed to a web. The gravity sensing modules are vertically arranged and connected between the connecting plate and the top plate of the rectangular frame. The using method comprises the steps that a foundation pit three-dimensional model is imported, a coordinate system is established, the preset driving distance of the moving device and the running time of the driving motor are calculated, the moving device is driven to run to the hoisting position along the supporting cross beam and then stops, and the lifting appliance is controlled to lower materials; a gravity sensor on the spring damper can sense the weightlessness state, the motor of the lifting appliance stops rotating, and the lifting appliance is reset after unloading is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting in building construction, and in particular to a light single-beam lifting device and an installation and use method thereof. Background Art

[0002] A crane is a device used to carry materials vertically or horizontally and to move short distances within a certain range. A crane is mainly composed of a lifting mechanism, a trolley running mechanism, a carriage running mechanism, a rotating mechanism, a metal structure and an electrical system. Its working principle is to convert electrical energy into mechanical energy through a motor drive, and to use various mechanisms to lift and transport materials. Cranes are widely used in engineering construction, cargo loading and unloading, machine installation and other fields.

[0003] However, there are still the following shortcomings in the application of large cranes in construction:

[0004] 1. Space limitation: Large cranes cannot operate normally in narrow or low construction spaces;

[0005] 2. Noise and vibration: Cranes generate noise and vibration during operation, which affects the surrounding environment and operators;

[0006] 3. High cost of movement and disassembly: Large lifting equipment requires a large number of professional technicians for disassembly, assembly and operation and maintenance, which increases the cost.

[0007] Secondly, for specific scenarios of construction, after the concrete pouring is completed, the foundation pit needs to be watered to cool down some sites, level the ground, clean up debris and other local operations. The current construction plan is to use a tower crane or a large crane to lift the equipment for the above local operations into the foundation pit. Since the operator cannot directly see the situation in the foundation pit during the lifting operation, it is necessary to rely on the personnel in the foundation pit to cooperate with the remote control command, which makes it easy for the crane to collide with the facilities in the foundation pit, causing damage to personnel and equipment. Summary of the invention

[0008] In view of the problem that in the existing construction using large cranes to lift equipment or materials into foundation pits, the cranes are prone to collide with facilities in the foundation pits, causing damage to personnel and equipment. The purpose of the present invention is to provide a light single-beam lifting device and its installation and use method.

[0009] The technical solution adopted by the present invention to solve the technical problem is: a light single-beam lifting equipment, comprising:

[0010] The supporting beam is fixed horizontally on the top of the foundation pit, and it is composed of a T-shaped steel beam, a guard plate connected to both sides of the T-shaped steel beam, and a pair of gear tracks connected to both sides of the web in the middle of the T-shaped steel beam;

[0011] A mobile device comprises a rectangular frame, a pair of gear mechanisms, a connecting plate and a plurality of gravity sensing modules, wherein the pair of gear mechanisms are symmetrically arranged along the axis of the supporting crossbeam, the connecting plate is arranged on the top of the pair of gear mechanisms, the gear mechanism comprises a bearing gear and a driving motor, the connecting shaft of the bearing gear passes through the connecting plate and is connected to the driving motor located on the top of the connecting plate, and the bearing gears of the pair of gear mechanisms are respectively meshed with a pair of gear tracks; the rectangular frame is sleeved on the outer side of the supporting crossbeam, the plurality of gravity sensing modules are vertically arranged and connected between the connecting plate and the top plate of the rectangular frame, the gravity sensing module comprises a spring damper and a gravity sensor, and the gravity sensor is arranged on the top of the spring damper;

[0012] a sling connected to the bottom plate of the rectangular frame;

[0013] The control system is respectively connected with the gravity sensor, the drive motor and the hanger signal.

[0014] The light single-beam lifting equipment of the present invention comprises a supporting crossbeam fixed on the top of a foundation pit, and a moving device and a sling installed on the supporting crossbeam, a rectangular frame of the moving device is sleeved on the outer side of the supporting crossbeam, a pair of gear mechanisms are symmetrically arranged along the axis of the supporting crossbeam, and the bearing gears of the gear mechanisms are meshed with the gear tracks fixed to the webs, a motor drives the two bearing gears to rotate synchronously, and drives the moving device to move along the gear tracks, a plurality of gravity sensing modules are vertically arranged and connected between a connecting plate and a top plate of the rectangular frame, which not only maintains a rigid connection between the moving device and the sling, but also can sense the weight of the hanging material, and whether there are other objects interfering during the hanging process to cause the material to tilt, so as to facilitate construction personnel to handle it in time and ensure construction safety; when the gravity sensor senses that the material is stably placed in the foundation pit, the motor drives the bearing gears to rotate synchronously in the opposite direction, and drives the moving device to automatically reset; compared with large-scale lifting equipment, the light single-beam lifting equipment has a simple structure, uses the existing foundation pit as a fixed point, does not occupy construction space, and each component is easy to be disassembled and used repeatedly, thereby improving construction efficiency. The present invention is particularly suitable for relatively narrow construction areas and has better flexibility and economy.

[0015] Furthermore, the rectangular frame is assembled from a top plate and a bottom plate arranged at the top and bottom, and side plates located on both sides thereof. The two side plates are connected to the top plate and the bottom plate by bolts, and the gravity sensing module is connected to the top plate and the connecting plate of the rectangular frame by bolts.

[0016] Furthermore, the moving device also includes a support assembly symmetrically arranged on both sides of the connecting plate along the axis thereof, the support assembly includes a partition and a plurality of support rollers, the partition is vertically fixed to the end of the connecting plate, the plurality of support rollers are arranged at intervals and axially connected to the side of the partition close to the bearing gear, and each support roller is in contact with the bottom surface of the supporting beam.

[0017] Furthermore, an elastic ball is provided at the center of the bottom of the bearing gear.

[0018] Furthermore, the lifting device includes a base connected to the bottom plate of the rectangular frame, a rotating disk connected to the base axis, a cable wound around the rotating disk, and a hook sleeved on the bottom of the cable.

[0019] Furthermore, the control system includes a signal-connected network communication module, a calculation module and an instruction issuing module. The network communication module is arranged on the top of the connecting plate of the mobile device, and the network communication module is connected with the gravity sensor, the driving motor and the hoisting device signal.

[0020] The present invention also provides a method for installing a light single-beam lifting device, the steps of which are as follows:

[0021] The supporting beam is horizontally set and fixed on the top of the foundation pit, a pair of gear mechanisms are installed on both sides of a pair of gear tracks and meshed with them, a connecting plate is placed on the top of the gear mechanism, the connecting shaft of the bearing gear passes through the connecting plate and is connected to the driving motor located on the top thereof, multiple groups of gravity sensing modules are vertically installed on the connecting plate, the top plate of the rectangular frame is placed on the top of the multiple groups of gravity sensing modules and bolted to them, the two side plates of the rectangular frame are bolted to the two sides of the top plate respectively, the bottom plate is bolted to the bottom of the two side plates, and finally, the hanger is bolted to the bottom plate.

[0022] The installation method of the light single-beam lifting equipment of the present invention is as follows: first, the supporting crossbeam is horizontally fixed to the top of the foundation pit as a support, a pair of gear mechanisms are installed on both sides of a pair of gear tracks and meshed with them, a connecting plate is arranged on the top of the gear mechanism, the connecting shaft of the bearing gear passes through the connecting plate and is connected to the driving motor located on the top thereof, the two ends of a plurality of vertically arranged gravity sensing modules are respectively connected to the connecting plate and the rectangular frame top plate, the sling bolts are connected to the rectangular frame bottom plate, so as to realize the quick connection between the sling and the mobile device. The installation method is simple and convenient to operate, and reduces the difficulty of installation and operation and maintenance of the lifting equipment.

[0023] In addition, the present invention also provides a method for using a light single-beam lifting device, the steps are as follows:

[0024] S1: The calculation module of the control system imports the three-dimensional model of the foundation pit, establishes a coordinate system for the area where the supporting beam is built in the foundation pit, and selects an area suitable for installing the light single-beam lifting equipment for positioning. The positioning information includes: the installation position coordinates of the two ends of the supporting beam, the coordinates of the parking position of the mobile device during driving, and the calculation module calculates the predetermined driving distance of the mobile device and the running time of the driving motor;

[0025] S2: When the mobile device is in the starting position, the driving motor receives the command to drive the mobile device to move along the supporting beam to the lifting position. After it is in place, it is controlled to stop moving. The hoisting device receives the lowering command, the turning plate rotates, the cable gradually becomes longer and the hook is lowered. When the material is hoisted to the foundation pit ground or the unloading platform, the gravity sensor on the spring damper senses the weightlessness or partial weightlessness state, and the motor of the hoisting device stops rotating. After unloading is completed, the control system controls the mobile device and the hoisting device to return to their positions and reset.

[0026] The method for using the light single-beam lifting equipment of the present invention is as follows: first, the calculation module imports the three-dimensional model of the foundation pit, establishes a coordinate system for the area in the foundation pit where the supporting beam is built, and the calculation module calculates the predetermined travel distance of the mobile device and the running time of the driving motor. The driving motor drives the mobile device to run along the supporting beam to the lifting position and then stops. Then, the rotating disk of the sling is controlled to rotate, and the cable gradually becomes longer and lowers the material. When the material reaches the foundation pit ground or the unloading platform, the gravity sensor on the spring damper will sense the weightlessness or partial weightlessness state, and the motor of the sling stops rotating. After the unloading is completed, it returns to its original position and resets. The method of use uses the actual three-dimensional model data of the foundation pit at the construction site and the fixed position of the supporting beam as a basis to automatically control the travel distance and the lowering height of the light single-beam lifting equipment. When the target position is reached, it stops in time, and the material is placed in the predetermined position. After the operation is completed, it is automatically unhooked and reset. The control accuracy is high, ensuring the safety of transporting materials, personnel, equipment, and surrounding facilities.

[0027] Furthermore, the step S2 also includes: presetting a warning value range X, where X is a percentage of the material weight, and when the material is hoisted to the foundation pit ground or the unloading platform, the pressure value sensed by the gravity sensor is less than X, and the motor of the hoist is controlled to stop working. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of an embodiment of a light single-beam lifting device of the present invention

[0029] Figure 2 It is a structural schematic diagram of an embodiment of a light single-beam lifting equipment of the present invention;

[0030] Figure 3 A plan view of a mobile device above a connection plate according to an embodiment of the present invention;

[0031] Figure 4 FIG. 1 is a plan view below a connecting plate of a mobile device according to an embodiment of the present invention.

[0032] The numbers in the figure are as follows:

[0033] T-beam 11; guard plate 12; web 14; gear track 15; gear mechanism 20; bearing gear 21; partition 23; drive motor 24; elastic ball 25; support roller 26; gravity sensing module 30; spring damper 31; gravity sensor 32; top plate 41; side plate 42; bottom plate 43; sling 50; base 51; rotating disk 52; cable 54; hook 55. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.

[0035] Combination Figures 1 to 4 The light single-beam lifting device of the present invention is described, and it comprises:

[0036] The supporting crossbeam is fixed horizontally on the top of the foundation pit, and is composed of a T-shaped steel beam 11, a guard plate 12 connected to both sides of the T-shaped steel beam 11, and a pair of gear tracks 15 connected to both sides of the web 14 in the middle of the T-shaped steel beam 11. The two guard plates 12 and the web 14 form two chutes as parallel running areas;

[0037] A mobile device, comprising a rectangular frame, a pair of gear mechanisms 20, a connecting plate and a plurality of gravity sensing modules 30, wherein the pair of gear mechanisms 20 are symmetrically arranged along the axis of the supporting beam, the connecting plate is arranged on the top of the pair of gear mechanisms 20, the gear mechanism 20 comprises a bearing gear 21 and a driving motor 24, the connecting shaft of the bearing gear 21 passes through the connecting plate and is connected to the driving motor 24 located on the top thereof, and the bearing gears 21 of the pair of gear mechanisms 20 are respectively meshed with a pair of gear tracks 15; the rectangular frame is sleeved on the outer side of the supporting beam, the plurality of gravity sensing modules 30 are vertically arranged and connected between the connecting plate and the top plate 41 of the rectangular frame, the gravity sensing module 30 comprises a spring damper 31 and a gravity sensor 32, and the gravity sensor 32 is arranged on the top of the spring damper 31;

[0038] a sling 50 connected to the bottom plate 43 of the rectangular frame;

[0039] The control system is connected to the gravity sensor, the drive motor 24 and the hanger 50 by signals respectively.

[0040] The light single-beam lifting equipment of the present invention comprises a supporting beam fixed to the top of a foundation pit, and a moving device and a sling 50 installed on the supporting beam. The rectangular frame of the moving device is sleeved on the outside of the supporting beam. A pair of gear mechanisms 20 are symmetrically arranged along the axis of the supporting beam, and the bearing gears 21 of the gear mechanism 20 are meshed with the gear track 15 fixed to the web 14. The motor drives the two bearing gears 21 to rotate synchronously, driving the moving device to move along the gear track 15. A plurality of gravity sensing modules 30 are vertically arranged and connected between the connecting plate and the top plate 41 of the rectangular frame, which not only maintains The rigid connection between the mobile device and the sling 50 can sense the weight of the hanging material and whether there are other objects interfering with the material during the hanging process, which can facilitate the construction personnel to handle it in time and ensure the safety of construction; when the gravity sensor 32 senses that the material is stably placed in the foundation pit, the motor drives the bearing gear 21 to rotate synchronously in the opposite direction, and drives the mobile device to reset automatically; compared with large-scale lifting equipment, the light single-beam lifting equipment has a simple structure, uses the existing foundation pit as a fixed point, does not occupy the construction space, and each component is easy to disassemble and use repeatedly, which improves the construction efficiency. The present invention is particularly suitable for relatively narrow construction areas and has better flexibility and economy.

[0041] like Figure 1 and Figure 2 As shown, the rectangular frame is assembled by a top plate 41 and a bottom plate 43 arranged at the top and bottom, and side plates 42 located on both sides thereof. The two side plates 42 are connected to the top plate 41 and the bottom plate 43 by bolts, and the gravity sensing module 30 is connected to the top plate 41 and the connecting plate of the rectangular frame by bolts, which is convenient for disassembly and assembly.

[0042] like Figure 1 and Figure 2 As shown, the mobile device also includes support components symmetrically arranged on both sides of the connecting plate along the axis thereof, the support components include a partition 23 and a plurality of support rollers 26, the partition 23 is vertically fixed to the end of the connecting plate, and the plurality of support rollers 26 are arranged at intervals and axially connected to the side of the partition 23 close to the bearing gear 21, and each support roller 26 is in contact with the bottom surface of the support beam. The support rollers 26 can move synchronously with the bearing gear 21 to keep the mobile device balanced.

[0043] like Figure 2 As shown, an elastic ball 25 is also provided at the bottom center of the bearing gear 21. The elastic ball 25 can not only support the bearing gear 21, but also reduce the friction between it and the supporting beam, which is conducive to the smooth running of the bearing gear 21.

[0044] like Figure 2As shown, the sling 50 includes a base 51 connected to the rectangular frame bottom plate 43, a rotating disk 52 axially connected to the base 51, a cable 54 wound around the rotating disk 52, and a hook 55 sleeved on the bottom of the cable 54. The specific structure and connection relationship of the sling 50 are existing technical contents and will not be repeated here.

[0045] The control system includes a signal-connected network communication module, a calculation module and an instruction issuing module. The network communication module is arranged on the top of the connecting plate of the mobile device. The network communication module is signal-connected with the gravity sensor 32, the drive motor 24 and the hoist 50. The control system realizes the remote automatic control of the movement of the mobile device into position and the lowering of the hoist 50, thereby improving the accuracy and safety of the hoisting construction.

[0046] Combination Figure 1 and Figure 2 The installation method of the light single-beam lifting equipment of the present invention is described, and the specific steps are as follows:

[0047] The supporting beam is horizontally set and fixed on the top of the foundation pit, a pair of gear mechanisms 20 are installed on both sides of a pair of gear tracks 15 and meshed with them, a connecting plate is placed on the top of the gear mechanism 20, the connecting shaft of the bearing gear 21 passes through the connecting plate and is connected to the driving motor 24 located on the top thereof, four groups of gravity sensing modules 30 are vertically installed on the connecting plate, the top plate 41 of the rectangular frame is placed on the top of the gravity sensing module 30 and bolted to it, the two side plates 42 of the rectangular frame are bolted to both sides of the top plate 41 respectively, the bottom plate 43 is bolted to the bottom of the two side plates 42, and finally, the sling 50 is bolted to the bottom plate 43.

[0048] The installation method of the light single-beam lifting equipment of the present invention is to first fix the supporting beam horizontally on the top of the foundation pit as a support, install a pair of gear mechanisms 20 on both sides of a pair of gear rails 15 and mesh with them, set a connecting plate on the top of the gear mechanism 20, and the connecting shaft of the bearing gear 21 passes through the connecting plate and is connected to the driving motor 24 located on the top thereof. The two ends of a plurality of vertically arranged gravity sensing modules 30 are respectively connected to the connecting plate and the rectangular frame top plate 41, and the sling 50 is bolted to the rectangular frame bottom plate 43 to achieve a quick connection between the sling 50 and the mobile device. The installation method is simple and convenient to operate, which reduces the difficulty of installation and operation and maintenance of the lifting equipment.

[0049] Combination Figures 1 to 4 The method for using the light single-beam lifting device of the present invention is described, and the specific steps are as follows:

[0050] S1: The calculation module of the control system imports the three-dimensional model of the foundation pit, establishes a coordinate system for the area where the supporting beam is built in the foundation pit, and selects an area suitable for installing the light single-beam lifting equipment for positioning. The positioning information includes: the coordinates of the installation positions of the two ends of the supporting beam, the coordinates of the parking position of the mobile device during driving, and the calculation module calculates the predetermined driving distance of the mobile device, as well as the speed and running time of the driving motor 24; according to the depth of the foundation pit and the material hoisting height, the appropriate length of the cable 54 is selected;

[0051] It is known that the starting point coordinates of the mobile device are (x0, y0), and the target point coordinates are (x1, y1), then the travel distance L of the mobile device is:

[0052]

[0053] If the radius of the bearing gear 21 is r, the number of revolutions of the motor is n = L / 2πr;

[0054] S2: The instruction issuing module issues instructions to the mobile device through the network communication module according to the above coordinate information and related data. When the mobile device is at the starting position, the network communication module controls the mobile device to move along the supporting beam to the hoisting position after receiving the instruction information. The mobile device can also be manually permitted to operate according to the on-site conditions. After the mobile device runs to the hoisting position, the instruction issuing module issues instructions to control it to stop moving. The sling 50 receives the lowering instruction from the network communication device, drives the rotating disk 52 to rotate, and the cable 54 gradually becomes longer and lowers the hook 55. When the material is hoisted to the foundation pit ground or the unloading platform, the gravity sensor 32 on the spring damper 31 senses a weightless or partial weightless state, and the motor of the sling 50 stops rotating. After unloading is completed, the control system controls the mobile device and the sling 50 to return to their original positions and reset.

[0055] The method for using the light single-beam lifting equipment of the present invention is as follows: first, the calculation module imports the three-dimensional model of the foundation pit, establishes a coordinate system for the area where the supporting beam is built in the foundation pit, and the calculation module calculates the predetermined travel distance of the mobile device and the running time of the drive motor 24. The drive motor 24 drives the mobile device to run along the supporting beam to the lifting position and then stops. Then, the rotating disk 52 of the sling 50 is controlled to rotate, and the cable 54 gradually becomes longer and lowers the material. When the material reaches the foundation pit ground or the unloading platform, the gravity sensor 32 on the spring damper 31 will sense the weightlessness or partial weightlessness state, and the motor of the sling 50 stops rotating. After the unloading is completed, it returns to its original position and resets. The method of use uses the actual three-dimensional model data of the foundation pit at the construction site and the fixed position of the supporting beam as a basis, automatically controls the travel distance and the lowering height of the light single-beam lifting equipment, stops in time when reaching the target position, places the material at the predetermined position, and automatically unhooks and resets after completing the operation. The control accuracy is high, ensuring the safety of transporting materials, personnel, equipment, and surrounding facilities.

[0056] The step S2 also includes: presetting a warning value range X, where X is a percentage of the material weight. When the material is hoisted to the foundation pit ground or the unloading platform, the pressure value sensed by the gravity sensor 32 is less than X, and the motor of the hoist 50 is controlled to stop working.

[0057] Assume that the mass of the material is m, the acceleration of gravity is g, if the material is affected by external factors, it is in an inclined stranded state during the hanging process, and the inclination angle is θ. At this time, the bearing pressure of the spring damper 31 is mg×cosθ, and the bearing pressure change of the spring damper 31 compared with the previous one is mg(1-cosθ). Assume that X is a percentage of the material weight, for example, 90% of the material weight. If the pressure value sensed by the gravity sensor 32 is less than 90% of the material's own weight, the motor of the control sling 50 stops working.

[0058] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of the claims.

Claims

1. A light single-beam lifting equipment, characterized in that: include: The supporting beam is fixed horizontally on the top of the foundation pit, and it is composed of a T-shaped steel beam, a guard plate connected to both sides of the T-shaped steel beam, and a pair of gear tracks connected to both sides of the web in the middle of the T-shaped steel beam; A mobile device comprises a rectangular frame, a pair of gear mechanisms, a connecting plate and a plurality of gravity sensing modules, wherein the pair of gear mechanisms are symmetrically arranged along the axis of the supporting crossbeam, the connecting plate is arranged on the top of the pair of gear mechanisms, the gear mechanism comprises a bearing gear and a driving motor, the connecting shaft of the bearing gear passes through the connecting plate and is connected to the driving motor located on the top of the connecting plate, and the bearing gears of the pair of gear mechanisms are respectively meshed with a pair of gear tracks; the rectangular frame is sleeved on the outer side of the supporting crossbeam, the plurality of gravity sensing modules are vertically arranged and connected between the connecting plate and the top plate of the rectangular frame, the gravity sensing module comprises a spring damper and a gravity sensor, and the gravity sensor is arranged on the top of the spring damper; a sling connected to the bottom plate of the rectangular frame; The control system is respectively connected with the gravity sensor, the drive motor and the hanger signal.

2. The light single-beam lifting equipment according to claim 1, characterized in that: The rectangular frame is assembled from a top plate and a bottom plate arranged at the top and bottom, and side plates located on both sides thereof. The two side plates are connected to the top plate and the bottom plate by bolts, and the gravity sensing module is connected to the top plate and the connecting plate of the rectangular frame by bolts.

3. The light single-beam lifting equipment according to claim 1, characterized in that: The moving device also includes a support assembly symmetrically arranged on both sides of the connecting plate along the axis thereof, the support assembly includes a partition and a plurality of support rollers, the partition is vertically fixed to the end of the connecting plate, the plurality of support rollers are arranged at intervals and axially connected to the side of the partition close to the bearing gear, and each support roller is in contact with the bottom surface of the supporting beam.

4. The light single-beam lifting equipment according to claim 1, characterized in that: An elastic ball is also arranged at the center of the bottom of the bearing gear.

5. The light single-beam lifting equipment according to claim 1, characterized in that: The sling comprises a base connected to the bottom plate of the rectangular frame, a rotating disk connected to the base shaft, a cable wound around the rotating disk, and A hook installed at the bottom of the cable.

6. The light single-beam lifting equipment according to claim 1, characterized in that: The control system includes a signal-connected network communication module, a calculation module and an instruction issuing module. The network communication module is arranged on the top of the connection plate of the mobile device, and the network communication module is connected with the gravity sensor, the drive motor and the hoisting device by signal.

7. The method for installing a light single-beam lifting equipment according to any one of claims 1 to 6, characterized in that: Here are the steps: The supporting beam is horizontally set and fixed on the top of the foundation pit, a pair of gear mechanisms are installed on both sides of a pair of gear tracks and meshed with them, a connecting plate is placed on the top of the gear mechanism, the connecting shaft of the bearing gear passes through the connecting plate and is connected to the driving motor located on the top thereof, multiple groups of gravity sensing modules are vertically installed on the connecting plate, the top plate of the rectangular frame is placed on the top of the multiple groups of gravity sensing modules and bolted to them, the two side plates of the rectangular frame are bolted to the two sides of the top plate respectively, the bottom plate is bolted to the bottom of the two side plates, and finally, the hanger is bolted to the bottom plate.

8. The method for using the light single-beam lifting equipment according to any one of claims 1 to 6, characterized in that: Here are the steps: S1: The calculation module of the control system imports the three-dimensional model of the foundation pit, establishes a coordinate system for the area where the supporting beam is built in the foundation pit, and selects an area suitable for installing the light single-beam lifting equipment for positioning. The positioning information includes: the installation position coordinates of the two ends of the supporting beam, the coordinates of the parking position of the mobile device during driving, and the calculation module calculates the predetermined driving distance of the mobile device and the running time of the driving motor; S2: When the mobile device is in the starting position, the driving motor receives the command to drive the mobile device to move along the supporting beam to the lifting position. After it is in place, it is controlled to stop moving. The hoisting device receives the lowering command, the turning plate rotates, the cable gradually becomes longer and the hook is lowered. When the material is hoisted to the foundation pit ground or the unloading platform, the gravity sensor on the spring damper senses the weightlessness or partial weightlessness state, and the motor of the hoisting device stops rotating. After unloading is completed, the control system controls the mobile device and the hoisting device to return to their positions and reset.

9. The method for using the light single-beam lifting equipment according to claim 8, characterized in that: The step S2 also includes: presetting a warning value range X, where X is a percentage of the material weight, and when the material is hoisted to the foundation pit ground or the unloading platform, the pressure value sensed by the gravity sensor is less than X, and the motor of the hoist is controlled to stop working.

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