Hoisting equipment for inspection well

Abstract

The invention relates to the field of bridge construction, in particular to inspection well hoisting equipment. The main component of the inspection well hoisting equipment provided by the invention is a longitudinal hoisting telescopic device; a transverse supporting device, a clamping device and a pressing self-locking mechanism are arranged. After the hoisting equipment is in place, a lifting rope is connected with a lifting lug of the longitudinal hoisting telescopic device, at the moment, the pressing self-locking mechanism is in a locking state, and the clamping arms are in an opening state. The clamp is placed outside the concrete inspection well needing to be hoisted, the bottom box and the top box of the pressing self-locking mechanism are pressed and separated through the self gravity of the clamp, at the moment, hoisting equipment hoists, drives the longitudinal hoisting telescopic device to move and drives the clamping device to clamp the inspection well, and the automatic hoisting process is achieved. And after the inspection well reaches the hoisting position accurately, the hoisting equipment is lowered, the distance between the fixing bolts is increased, the sliding cross beam moves inwards, the clamping device releases the inspection well, and the automatic hoisting process is achieved.

Description

Technical Field

[0001] The present application relates to the field of municipal technology, and in particular to an inspection well hoisting device. Background Art

[0002] In urban road construction, there are many municipal pipeline projects, and drainage pipeline construction is crucial. Common socket pipe construction methods such as crane lifting pipes and manual installation with hand winches, bracket hand winches lifting and manual balance installation, etc., have many problems in actual operation. For the assembly of concrete inspection wells, the traditional installation method relies on the construction experience of operators to make their own lifting devices and tools, which has high personnel safety risks and low work efficiency. For example, in drainage engineering projects, when cranes are used to lift inspection wells and manual installation with guide ropes, mechanical operation requirements are high and errors are prone to occur, resulting in inaccurate positioning. In addition, because multiple people are required to work together, personal errors increase, making it impossible to guarantee the qualified rate of well chamber installation. At the same time, using some common homemade lifting tools, such as ear-shaped lifting tools formed by round steel bending and combined with hand winches, the transfer speed is slow and requires multiple people to work together, resulting in low construction efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present application provides an inspection well hoisting device to solve the technical problems of the current existing inspection well hoisting.

[0004] The present application provides a manhole hoisting device, comprising: Longitudinal lifting and telescopic device; A transverse supporting device connected to the longitudinal lifting and telescopic device; A clamping device, connected to the lateral supporting device, for clamping the inspection well; A press-type self-locking mechanism is provided on the longitudinal hoisting and telescopic device and is used for locking the longitudinal hoisting and telescopic device.

[0005] In some embodiments provided in the present application, the longitudinal lifting and telescopic device includes a lifting ear, a support shaft, a first arm, a second arm and a bolt. The lifting ear and the support shaft are welded as a whole. The first arm and the second arm are hinged through the support shaft and the bolt. A fixing bolt is provided at the end of the second arm, and the fixing bolt is movably connected to the transverse support device.

[0006] In some embodiments provided in the present application, the transverse supporting device includes a fixed beam, a sliding beam, an anti-slip strip, and an anti-slip pad, the side of the fixed beam is provided with a plurality of adjustment holes, the middle of the fixed beam is provided with a central slide groove, the central slide groove and the fixing bolt are penetrated together, the anti-slip strip is connected to the two ends of the fixed beam, the fixed beam is formed by cutting two pieces of steel plates; the sliding beam is formed by cutting two pieces of steel plates, the sliding beam and the relative insertion and relative sliding connection are connected together, the friction surface of the fixed beam is coated with lubricating oil, sliding grooves are opened at both ends of the sliding beam, the top surface of the fixed beam is provided with the anti-slip pad, fastening splints are provided on both sides of the anti-slip pad, the fastening splints are penetrated with fastening handles, the fastening handles are in contact with the anti-slip pads, the sliding beams are fixedly connected to the fixing bolts respectively, and when lifting or falling, the spacing between the fixing bolts is reduced or increased, driving the clamping device to contract and open and close, thereby realizing clamping and relaxation.

[0007] In some embodiments provided in the present application, the clamping device includes a clamping arm, a supporting splint, and a clamping plate. The clamping arm is connected to the supporting splint, the supporting splint is bolted to the transverse supporting device, the clamping plate is connected to the clamping arm, and is composed of a steel plate and an anti-slip pad. When lifting or falling, the spacing between the fixing bolts decreases or increases to drive the clamping device to contract and open and close, and the clamping plate contacts and releases the inspection well.

[0008] In some embodiments provided in the present application, the press-to-lock mechanism includes a bottom box and a top box, the bottom box is composed of a convex shaft and a first slot and a second slot, the first slot is a fixed slot, and the second slot is a movable slot; the top box is composed of an inner core, a nest-shaped spring, and a cover plate; the top box moves downward and presses into contact with the bottom box for the first time, the nest-shaped spring pops out and is locked in the first slot, the bottom box and the top box are combined into a fixed whole, the top box moves downward again and presses into contact with the bottom box for the second time, the nest-shaped spring pops out in the second slot, and at this time the bottom box is separated from the top box.

[0009] In some embodiments provided in the present application, a slow-descent device is also included, which is arranged on the side of the inspection well and is used to support the inspection well when it is lifted and lowered so that it descends slowly.

[0010] In some embodiments provided in the present application, the slow-descent device includes two relatively arranged slow-descent mechanisms, and the two slow-descent mechanisms relatively clamp the sides of the inspection well. The slow-descent mechanism includes a fixed plate, a movable motor, a side panel, a hydraulic press, an extrusion rod and a contact piece. The fixed plate is installed on the ground, the movable motor is connected to the fixed plate, and the driving end of the movable motor is connected to the side panel. A plurality of water chambers are provided in the side panel, and water is provided in the water chambers. The water chambers are arranged at intervals along the height of the side panel. The extrusion rod is inserted into the water chamber, the hydraulic press is connected to the side panel and is drivingly connected to the extrusion rod. The contact piece is slidably connected to the side panel and extends into the water chamber. The contact piece includes a plurality of evenly arranged contact pieces, and the plurality of contact pieces corresponding to each water chamber can be extended by squeezing water by the extrusion rod. The water chamber is arranged horizontally so that the contact pieces of the same water chamber have the same height.

[0011] In some embodiments provided in the present application, when the inspection well begins to be released, the extension distance of the contact members from high to low heights gradually increases to slowly release the inspection well. After the inspection well is released and moved, several rows of the contact members from low to high are extended to slow down the inspection well, so that the acceleration of gravity and the friction force are offset, maintaining the initial descent speed and descending slowly.

[0012] In some embodiments provided in the present application, an internal support mechanism is provided in the inspection well.

[0013] In some embodiments provided in the present application, the inner support mechanism includes two support plates arranged on the inner wall of the inspection well and a telescopic rod with adjustable length, and the support plates are connected to the telescopic rod.

[0014] The present application has the following technical effects: after the hoisting equipment is in place, a hoisting rope or a U-shaped buckle is used to connect with the lifting ear of the longitudinal hoisting telescopic device. At this time, the self-locking mechanism is in a locked state and the clamping arm is in an open state. The clamp is placed outside the concrete inspection well to be hoisted, and the self-gravity of the clamp is used to press and separate the bottom box and the top box of the self-locking mechanism. At this time, the hoisting equipment is lifted, driving the longitudinal hoisting telescopic device to move, reducing the spacing between the fixing bolts, and the sliding beam of the transverse support device moves outward, thereby driving the clamping device to clamp the inspection well, realizing the automatic lifting process. After the inspection well reaches the hoisting position accurately, the hoisting equipment is lowered, increasing the spacing between the fixing bolts, and the sliding beam moves inward. The clamping device releases the inspection well to realize the automatic lifting process. The present invention has a simple structure, convenient installation and disassembly, fast transfer speed, high turnover utilization rate, and strong practicality. In actual construction, such as the drainage project of Youjia Street in Harbin, when installing various types of inspection wells, the device is easy to install and disassemble, which greatly improves the construction efficiency. It reduces the workload of operators, improves construction efficiency, and saves construction costs. Compared with the traditional installation method, it avoids the complex process and high error rate caused by multi-person collaborative work, reduces labor costs and material loss. The operation is simple and flexible, and easy for operators to master. Its unique structural design enables operators to quickly get started and operate proficiently, improving work efficiency. It can freely adjust the center line while ensuring the verticality during installation, which is suitable for well chamber installation of various pipe diameters to ensure construction quality. It effectively solves the problems of inaccurate positioning and large verticality deviation in traditional installation methods, improves the qualified rate of inspection well installation, and speeds up the construction progress.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The overall structure of the inspection well hoisting equipment provided in the embodiment of the present application is shown in FIG. Figure 1 ; Figure 2 The overall structure of the inspection well hoisting equipment provided in the embodiment of the present application is shown in FIG. Figure 2 .

[0018] Reference numerals: 10. Longitudinal lifting and telescopic device; 101. Lifting lug; 102. Support shaft; 103. First arm; 104. Second arm; 105. Fixing bolt; 20. lateral support device; 201. fixed beam; 202. sliding beam; 203. anti-slip strip; 204. anti-slip pad; 30. Clamping device; 301. Clamping arm; 302. Supporting clamping plate; 303. Clamping plate; 40. Press self-locking mechanism; 401. Bottom box; 402. Top box; 50. Slow-down mechanism; 501. Fixed plate; 502. Moving motor; 503. Side panel; 504. Hydraulic press; 505. Extrusion rod; 506. Contact piece. DETAILED DESCRIPTION

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

[0020] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0022] It should be understood that, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. For example, the first groove and the second groove are only used to distinguish different grooves, and their order is not limited. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit them to be different.

[0023] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] refer to Figure 1-Figure 2, a manhole hoisting device, comprising: Longitudinal lifting and telescopic device 10; A transverse supporting device 20 connected to the longitudinal lifting and telescopic device 10; A clamping device 30, connected to the lateral support device 20, for clamping the inspection well; The press self-locking mechanism is provided on the longitudinal hoisting and telescopic device 10 and is used to lock the longitudinal hoisting and telescopic device 10 .

[0025] The longitudinal lifting and telescopic device 10 includes a lifting ear 101, a support shaft 102, a first arm 103, a second arm 104 and a bolt. The lifting ear 101 and the support shaft 102 are welded as a whole. The first arm 103 and the second arm 104 are hinged through the support shaft 102 and the bolt. A fixing bolt 105 is provided at the end of the second arm 104, and the fixing bolt 105 is movably connected to the transverse support device 20.

[0026] The lateral support device 20 includes a fixed beam 201, a sliding beam 202, an anti-slip strip 203, and an anti-slip pad 204. The side of the fixed beam 201 is provided with a plurality of adjustment holes. The middle of the fixed beam 201 is provided with a central slide groove, and the central slide groove and the fixing bolt 105 are penetrated together. The anti-slip strip 203 is connected to the two ends of the fixed beam 201. The fixed beam 201 is formed by cutting two pieces of steel plates; the sliding beam 202 is formed by cutting two pieces of steel plates, and the sliding beam 202 and the relative insertion The fixed crossbeam 201 is connected together and relatively slidably connected, the friction surface of the fixed crossbeam 201 is coated with lubricating oil, sliding grooves are opened at both ends of the sliding crossbeam 202, the top surface of the fixed crossbeam 201 is provided with the anti-slip pad 204, and the two sides of the anti-slip pad 204 are provided with fastening splints, and the fastening splints are penetrated by fastening handles, and the fastening handles are in contact with the anti-slip pad 204, and the sliding crossbeam 202 is fixedly connected with the fixing bolts 105 respectively. When lifting or falling, the spacing between the fixing bolts 105 is reduced or increased to drive the clamping device 30 to contract and open and close, thereby realizing clamping and loosening.

[0027] The clamping device 30 includes a clamping arm 301, a supporting splint 302, and a clamping plate 303. The clamping arm 301 is connected to the supporting splint, the supporting splint 302 is bolted to the transverse supporting device 20, and the clamping plate 303 is connected to the clamping arm 301, and is composed of a steel plate and an anti-slip pad 204. When lifting or falling, the spacing of the fixing bolts 105 decreases or increases to drive the clamping device 30 to contract and open and close, and the clamping plate 303 contacts and releases the inspection well.

[0028] The push-to-lock mechanism 40 includes a bottom box 401 and a top box 402, the bottom box 401 is composed of a convex shaft and a first slot and a second slot, the first slot is a fixed slot, and the second slot is a movable slot; the top box 402 is composed of an inner core, a nest-shaped spring, and a cover plate; the top box 402 moves downward and is pressed and contacted with the bottom box 401 for the first time, the nest-shaped spring pops out and is locked in the first slot, the bottom box 401 and the top box 402 are combined into a fixed whole, the top box 402 moves downward again and is pressed and contacted with the bottom box 401 for the second time, the nest-shaped spring pops out in the second slot, and at this time the bottom box 401 is separated from the top box 402.

[0029] The inspection well hoisting fixture of the present invention is mainly composed of a longitudinal hoisting telescopic device 10, a transverse support device 20, a clamping device 30 and a push-to-lock mechanism. The longitudinal hoisting telescopic device 10 includes a lifting lug 101, a support shaft 102, a first arm 103, a second arm 104 and a bolt. The lifting lug 101 is welded to the support shaft 102 as a whole, and the first arm 103 and the second arm 104 are hinged to the bolt through the support shaft 102. The transverse support device 20 is composed of a fixed beam 201, a sliding beam 202 and a positioning and adjusting device. The sliding beam 202 is slidably connected to the fixed beam 201. The positioning and adjusting device is used to adjust the position of the clamping device 30, and the sliding beam 202 is connected to the fixing bolt 105 of the longitudinal hoisting telescopic device 10. The clamping device 30 is driven to contract and open and close by changing the spacing of the fixing bolts 105. The clamping device 30 is composed of a clamping arm 301, a contact steel plate, a supporting clamping plate 302 and a clamping plate 303. The clamping arm 301 is connected to the transverse supporting device 20, and the clamping plate 303 is in contact with the inspection well. The push-to-lock mechanism includes a bottom box 401 and a top box 402. The bottom box 401 is provided with a fixed card slot and a movable card slot, and the top box 402 is provided with an inner core, a nest-shaped spring and a cover plate, which are used to realize automatic clamping and loosening of the clamp.

[0030] In the longitudinal lifting and telescopic device 10, the lifting ear 101 is made of 2 cm thick steel plate cut according to the specified size, the support shaft 102 is made of 45# 10mm thick steel cylinder with a diameter of 40mm, the first arm 103 and the second arm 104 are made of 20mm thick steel plate, and the bolts are 8.8 grade M16*100 hexagonal high-strength bolts and matching high-strength nuts.

[0031] The fixed crossbeam 201 of the transverse support device 20 is cut from two pieces of 20mm thick steel plates, and the sliding crossbeam 202 is cut from two pieces of 10mm thick steel plates, and the friction surface with the fixed crossbeam 201 is coated with lubricating oil, and sliding grooves are opened at both ends (the groove length is 50cm, one piece has a fixed hole with a diameter of Φ11mm 5cm to the left of the center, and the other piece has a fixed hole with a diameter of Φ11mm 5cm to the right of the center). The positioning and adjustment device includes an adjustment hole (aperture Φ11mm, hole spacing 50mm), a center slide (the slide is 20cm long, 11mm wide, located at the center of the fixed beam 201), an anti-slip strip 203 (adopting an aluminum alloy anti-slip strip 203, 55cm long, welded to the upper end of the fixed beam 201), an anti-slip pad 204 (adopting a cloth-reinforced rubber anti-slip pad 204, 20mm thick), a fastening handle (adopting M10*100 high-strength bolts, nuts welded to round steel, and nuts for fastening) and a fastening splint (cut from 2 pieces of 10mm thick steel plates).

[0032] The clamping arm 301 of the clamping device 30 is made of two 20mm thick steel plates, which are made into a semicircle when hoisting a round well according to construction needs, and into a U shape when hoisting a square well. The connecting steel plate is made of 10mm thick steel plate, which is cut according to the shape of the clamping arm 301 and the upper and lower pieces of the clamping arm 301 are welded to form a clamping unit. The supporting clamp 302 is cut from a 20mm thick steel plate, welded to the clamping arm 301 and bolted to the horizontal support device 20. The clamping plate 303 is composed of a 20mm steel plate and an anti-slip pad 204.

[0033] The bottom box 401 of the push-to-lock mechanism is composed of a convex shaft and two slots, and the top box 402 is composed of an inner core, a socket-shaped spring, and a cover plate.

[0034] In some embodiments, a slow-descent device is also included, which is arranged on the side of the inspection well and is used to support the inspection well when it is lifted and lowered so that it descends slowly.

[0035] The slow-descent device is set on the side of the inspection well. When the inspection well is lifted and lowered, the device can support the inspection well. Through its own structural design and function realization, it can effectively control the descent speed of the inspection well to avoid damage or danger caused by its rapid fall.

[0036] Achieve a smooth and slow descent of the inspection well during the hoisting process, reduce the impact caused by the rapid conversion of gravitational potential energy into kinetic energy, improve the safety and stability of the inspection well lowering process, protect the structural integrity of the inspection well and reduce potential risks to the surrounding environment and operators.

[0037] In some embodiments, the slow-down device includes two slow-down mechanisms 50 arranged opposite to each other, and the two slow-down mechanisms 50 relatively clamp the sides of the inspection well. The slow-down mechanism 50 includes a fixed plate 501, a mobile motor 502, a side panel 503, a hydraulic press 504, an extrusion rod 505 and a contact member 506. The fixed plate 501 is installed on the ground, and the mobile motor 502 is connected to the fixed plate 501. The driving end of the mobile motor 502 is connected to the side panel 503. The side panel 503 is provided with a plurality of water cavities, and the water cavities are provided with water. The water chambers are arranged at intervals along the height of the side panel 503, the extrusion rod 505 is inserted into the water chamber, the hydraulic press 504 is connected to the side panel 503 and is drivingly connected to the extrusion rod 505, the contact member 506 is slidably connected to the side panel 503 and extends into the water chamber, the contact member 506 includes a plurality of uniformly arranged contact members 506 corresponding to each water chamber can be extended by squeezing water by the extrusion rod 505, the water chamber is arranged transversely, so that the height of the contact members 506 in the same water chamber is the same. The slow-down device is composed of two relatively arranged slow-down mechanisms 50, which are fixed to the ground by a fixing plate 501, and the moving motor 502 can drive the side panel 503 to move to adapt to the position of the inspection well. There are transverse water chambers arranged at intervals along the height in the side panel 503, the hydraulic press 504 drives the extrusion rod 505 to move in the water chamber, and squeezes water to extend the contact members 506 uniformly arranged in the water chamber. Due to the incompressibility of water and the principle of hydraulic transmission, the movement of the extrusion rod 505 can be converted into the extension movement of the contact member 506, thereby applying a supporting force to the side of the inspection well and controlling its descending speed.

[0038] Through multiple water chambers and corresponding contact members 506, flexible and uniform support force adjustment can be provided at different heights of the inspection well. The relatively arranged slow-down mechanisms 50 can stably clamp the inspection well from both sides to ensure that it will not deviate or shake during the descent process, accurately control the slow-down process of the inspection well, adapt to inspection wells of different sizes and weights, and improve the versatility and reliability of the equipment.

[0039] When the inspection well begins to be released, the distance of the contact members 506 extending from high to low gradually increases to slowly release the inspection well. After the inspection well is released and moved, several rows of the contact members 506 extending from low to high slow down the inspection well, so that the acceleration of gravity and the friction force are offset, and the initial descent speed is maintained to descend slowly. When the inspection well begins to be released, according to the law of movement of objects under the action of gravity, the distance of the contact members 506 extending from high to low gradually increases, so that the support force for the inspection well can be gradually increased, and the kinetic energy converted from the increasing gravitational potential energy can be effectively offset, so as to achieve slow start-up release. After the inspection well moves, by extending several rows of the contact members 506 from low to high, the principle that the direction of friction force is opposite to the direction of movement is used to increase the upward friction force, so that the acceleration of gravity and the friction force are offset, so as to maintain the initial descent speed to descend slowly, and stably control the speed of the inspection well during the entire descent process.

[0040] It can dynamically adjust the slow-descent strategy according to the different stages of the inspection well's descent, accurately control the inspection well's descent speed, avoid sudden changes in speed, further improve the stability and safety of the slow-descent, reduce the wear and impact between the inspection well and the slow-descent device, extend the service life of the equipment, and also ensure the accuracy and efficiency of the operation.

[0041] It should be noted that good sealing is required, namely the contact member 506 and other components.

[0042] An internal supporting mechanism is arranged in the inspection well.

[0043] The inner support mechanism includes two support plates arranged on the inner wall of the inspection well and a telescopic rod with adjustable length, and the support plates are connected to the telescopic rod. The inner support mechanism is arranged inside the inspection well, and the support plates cooperate with the telescopic rod with adjustable length. The support plates are in contact with the inner wall of the inspection well, and the length of the telescopic rod is adjusted to adapt to inspection wells with different inner diameters, so as to support and reinforce the inspection well from the inside.

[0044] Enhance the overall structural strength of the inspection well during the hoisting and slow-down process, and prevent the inspection well from being deformed or damaged due to external forces. Especially for inspection wells with longer or larger diameters, the internal support can effectively share the pressure of the external slow-down device, further improve the safety and reliability of the inspection well lowering operation, and ensure that the inspection well maintains good structural integrity throughout the construction process. The support sheet is fixed on the inner wall of the inspection well. As a component that directly contacts the inspection well and transmits the supporting force, the adjustable-length telescopic rod connects the support sheet. By changing the length of the telescopic rod, the size and distribution of the supporting force between the support sheet and the inner wall of the inspection well are adjusted to meet the slow-down requirements of inspection wells of different sizes and working conditions. Provides a flexible internal support method that can be accurately adjusted according to the specific size of the inspection well, optimizes the internal support effect, makes the internal support mechanism better match the inspection well structure, and cooperates with the external slow-down device to jointly ensure the smooth progress of the inspection well slow-down operation, and improves the applicability and stability of the entire inspection well hoisting equipment.

[0045] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A manhole hoisting device, characterized in that: include: Longitudinal lifting and telescopic device; A transverse supporting device connected to the longitudinal lifting and telescopic device; A clamping device, connected to the lateral supporting device, for clamping the inspection well; A press self-locking mechanism is arranged on the longitudinal hoisting and telescopic device and is used to lock the longitudinal hoisting and telescopic device.

2. The inspection well hoisting equipment according to claim 1 is characterized in that: The longitudinal lifting and telescopic device includes a lifting ear, a support shaft, a first arm, a second arm and a bolt. The lifting ear and the support shaft are welded as a whole. The first arm and the second arm are hinged through the support shaft and the bolt. A fixing bolt is provided at the end of the second arm, and the fixing bolt is movably connected to the transverse support device.

3. The inspection well hoisting equipment according to claim 2 is characterized in that: The lateral supporting device comprises a fixed crossbeam, a sliding crossbeam, an anti-skid strip and an anti-skid pad, the side surface of the fixed crossbeam is provided with a plurality of adjustment holes, the middle portion of the fixed crossbeam is provided with a central slide groove, the central slide groove and the fixing bolt are penetrated together, the anti-skid strip is connected on both ends of the fixed crossbeam, the fixed crossbeam is formed by cutting two steel plates; the sliding crossbeam is formed by cutting two steel plates, the sliding beam and the fixed crossbeam are relatively plugged in and relatively slidably connected together, the friction surface of the fixed crossbeam is coated with lubricating oil, sliding grooves are opened at both ends of the sliding beam, the top surface of the fixed crossbeam is provided with the anti-skid pad, fastening splints are provided on both sides of the anti-skid pad, the fastening splints are penetrated with fastening handles, the fastening handles are in contact with the anti-skid pads, the sliding crossbeams are fixedly connected to the fixing bolts respectively, and the spacing between the fixing bolts is reduced or increased when lifting or falling, driving the clamping device to contract and open and close, thereby clamping and releasing.

4. The inspection well hoisting equipment according to claim 3 is characterized in that: The clamping device includes a clamping arm, a supporting splint, and a clamping plate. The clamping arm is connected to the supporting splint, the supporting splint is bolted to the transverse supporting device, and the clamping plate is connected to the clamping arm, and is composed of a steel plate and an anti-slip pad. When lifting or falling, the spacing between the fixing bolts decreases or increases to drive the clamping device to contract and open and close, and the clamping plate contacts and releases the inspection well.

5. The inspection well hoisting equipment according to claim 4 is characterized in that: The push-to-lock mechanism includes a bottom box and a top box, the bottom box is composed of a convex shaft and a first slot and a second slot, the first slot is a fixed slot, and the second slot is a movable slot; the top box is composed of an inner core, a nest-shaped spring, and a cover plate; the top box moves downward and is pressed and contacted with the bottom box for the first time, the nest-shaped spring pops out and is locked in the first slot, the bottom box and the top box are combined into a fixed whole, the top box moves downward again and is pressed and contacted with the bottom box for the second time, the nest-shaped spring pops out in the second slot, and the bottom box is separated from the top box.

6. The inspection well hoisting equipment according to claim 1, characterized in that: It also includes a slow-descent device, which is arranged on the side of the inspection well and is used to support the inspection well when it is lifted and lowered, so that it descends slowly.

7. The inspection well hoisting equipment according to claim 6, characterized in that: The slow-down device includes two slow-down mechanisms arranged opposite to each other, and the two slow-down mechanisms relatively clamp the sides of the inspection well. The slow-down mechanism includes a fixed plate, a movable motor, a side panel, a hydraulic press, an extrusion rod and a contact piece. The fixed plate is installed on the ground, the movable motor is connected to the fixed plate, and the driving end of the movable motor is connected to the side panel. A plurality of water chambers are provided in the side panel, and water is provided in the water chambers. The water chambers are arranged at intervals along the height of the side panel. The extrusion rod is inserted into the water chamber, and the hydraulic press is connected to the side panel and is drivingly connected to the extrusion rod. The contact piece is slidably connected to the side panel and extends into the water chamber. The contact piece includes a plurality of evenly arranged contact pieces, and the plurality of contact pieces corresponding to each water chamber can be extended by squeezing water by the extrusion rod. The water chamber is arranged horizontally so that the contact pieces of the same water chamber have the same height.

8. The inspection well hoisting equipment according to claim 7, characterized in that: When the inspection well begins to be released, the extension distance of the contact pieces from high to low heights gradually increases to slowly release the inspection well. After the inspection well is released and moved, several rows of contact pieces from low to high are extended to slow down the inspection well, so that the acceleration of gravity and the friction force are offset, maintaining the initial descent speed and descending slowly.

9. The inspection well hoisting equipment according to claim 7, characterized in that: An internal supporting mechanism is arranged in the inspection well.

10. The inspection well hoisting equipment according to claim 9, characterized in that: The inner support mechanism comprises two support plates arranged on the inner wall of the inspection well and a telescopic rod with adjustable length, and the support plates are connected to the telescopic rod.

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