Lifting device of folding external hanging basket for bridge

Abstract

The invention relates to the technical field of lifting devices, and discloses a lifting device of a folding external hanging basket for a bridge, which comprises a hanging basket body and a lifting frame, two symmetrically arranged lifting mechanisms and a counterweight liquid distribution component are mounted on the lifting frame, and the lifting device further comprises a counterweight box arranged below the hanging basket body, the lifting mechanism is used for limiting the relative height of the hanging basket body and the weight box, a weight cavity is formed in the weight box, and a bridge clamping component is connected to the weight box. According to the invention, after the initial adjustment of the height of the hanging basket body is completed, a counterweight test can be carried out before the construction of the hanging basket body through the arrangement of a loading roller, a pull cable and a first tension sensor, and the maximum lifting force of the lifting device on the hanging basket body is tested through the counterweight test of the hanging basket body; the maximum lifting force of the hanging basket body is tested and obtained in advance through the lifting device, so that the safety of the hanging basket body during bridge construction is improved, and the weight limitation of the hanging basket body during construction is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and more specifically, to a lifting device for a foldable external basket for a bridge. Background Art

[0002] The hanging basket is the main equipment in cantilever construction. According to the structural form, it can be divided into four types: truss type, cable-stayed type, steel type and mixed type. According to the requirements of concrete cantilever construction process and the requirements of the design drawings for the hanging basket, the characteristics, weight, steel type, construction process, etc. of various types of hanging baskets are comprehensively compared; the design principles of the hanging basket are: light weight, simple structure, firm and stable, easy to move forward and assemble and disassemble, strong reusability, small deformation after being stressed, etc., and there is sufficient space under the hanging basket, which can provide a larger construction working surface, which is conducive to the construction operation of the steel formwork; The hanging basket relies on steel ropes to be lifted and lowered when in use. In the prior art, the patent document with publication number CN116856299A discloses a multi-truss type extra-wide hanging basket for bridge construction. The above-mentioned hanging basket is stably connected by setting a top support mechanism and a bottom support mechanism. When the top support mechanism moves forward stably, it drives the entire bottom support mechanism to move forward synchronously and stably, and it is convenient to open the steel rope winding mechanism to control the winding and unwinding of the lifting steel rope, thereby lifting the middle and rear ends of the lifting bottom support mechanism to facilitate the demolding of the mold assembly. However, when the above-mentioned hanging basket lifting device is in use, on the one hand, it is not convenient to carry out a tensile test before the use of the hanging basket to measure the maximum bearing capacity of the hanging basket. On the other hand, when adjusting the height of the hanging basket, the hanging basket is limited in both directions, which makes it inconvenient to improve the height adjustment of the hanging basket and the stability after deployment. Based on this, the present invention provides a lifting device for a foldable external hanging basket for a bridge to solve the technical problems raised in the above-mentioned background technology. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a lifting device for a foldable external basket for a bridge. In the present invention, after the initial adjustment of the height of the basket body is completed, a counterweight test can be carried out before the construction of the basket body by setting a loading roller, a pulling cable and a first tension sensor. By testing the counterweight of the basket body, the maximum lifting force of the basket body by the lifting device can be tested. The maximum lifting force of the basket body can be obtained by testing the lifting device in advance, thereby improving the safety of the basket body during bridge construction and achieving the weight limit of the basket body during construction.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lifting device for a foldable external hanging basket for a bridge, comprising a hanging basket body and a lifting frame, the lifting frame is equipped with two symmetrically arranged lifting mechanisms and a counterweight liquid distribution component, and also comprises a counterweight box arranged below the hanging basket body, the lifting mechanism is used to limit the relative height of the hanging basket body and the counterweight box, a counterweight cavity is opened inside the counterweight box, a bridge clamping component is connected to the counterweight box, and a counterweight and a pulling load test component are installed between the counterweight box and the hanging basket body; The lifting mechanism includes a main roller, an auxiliary roller and a driven roller which are rotatably connected between the inner surface of the lifting frame. The main roller and the auxiliary roller are respectively driven by a first motor. The auxiliary roller is transmission-connected to the driven roller through a chain belt. Two symmetrically arranged lifting cables are wound around the main roller, and the two lifting cables are fixedly connected to the hanging basket body. Two symmetrically arranged positioning cables are wound around the auxiliary roller, and the two positioning cables are fixedly connected to the counterweight box. The hanging basket body is provided with two brake guide assemblies which cooperate with the positioning cables. A liquid separation chamber which is connected to the counterweight liquid distribution component is fixedly opened inside the driven roller. A liquid through pipe is wound around the driven roller, and the two ends of the liquid through pipe are respectively connected to the liquid separation chamber and the counterweight chamber.

[0005] As a preferred technical solution of the present invention, it also includes a lifting platform, the lower part of which is equipped with a walking mechanism that can walk along the bridge body, a single-chip computer is installed on the lifting platform, the lifting frame is fixedly connected to the lifting platform, and a longitudinal folding mechanism is provided on the hanging basket body.

[0006] As a preferred technical solution of the present invention, the bridge clamping component includes a clamping frame installed on the top surface of the counterweight box, and a clamping screw driven by a clamping motor is rotatably connected between the inner surfaces of the clamping frame. A positive thread segment and a negative thread segment are symmetrically arranged on the clamping screw, and the positive thread segment and the negative thread segment are both transmission-connected with an external pressure clamp. The surfaces of the two external pressure clamps are fixedly installed with an inner clamp arm through a contoured clamp spring, and the contoured clamp spring is sleeved on the clamping screw. The external pressure clamp and the inner clamp arm are both slidably connected to the clamp frame, and the two inner clamp arms are both installed with contoured clamp bags, and the two inner clamp arms are both installed with air pressure probes for monitoring the internal air pressure of the contoured clamp bags, and the data end of the air pressure probe is connected to the data of the single-chip computer.

[0007] As a preferred technical solution of the present invention, the counterweight and pulling test component includes a pulling roller which is rotatably connected between the inner surfaces of the clamping frame and driven by a second motor, and two symmetrically arranged pulling cables are wound on the pulling roller, and the other ends of the two pulling cables are respectively installed with a first tension sensor, and the other ends of the two first tension sensors are respectively fixedly connected to the hanging basket body, and the data ends of the two first tension sensors are respectively connected to the data of the single-chip microcomputer.

[0008] As a preferred technical solution of the present invention, the counterweight liquid distribution component includes a liquid storage tank, which is fixedly connected to the lifting frame. The liquid storage tank is connected to two pump bodies, and the two pump bodies are respectively connected to a pumping pipe and a suction pipe. The other ends of the pumping pipe and the suction pipe are respectively connected to two liquid distribution chambers in rotation, and the liquid storage tank is connected to a flange joint.

[0009] As a preferred technical solution of the present invention, the lifting mechanism also includes two first guide rollers and a second guide roller rotatably connected to the inner surface of the lifting frame, the two first guide rollers are both adaptably connected to the suspension cables, and the second guide roller is adaptably connected to the positioning cable.

[0010] As a preferred technical solution of the present invention, the two brake guide assemblies each include two guide tubes and locking pliers installed on the basket body, each of the guide tubes is slidably connected to the positioning cable at the corresponding position, brake holes are opened on the basket body at positions corresponding to the two guide tubes, brake columns matching the brake holes are installed on the surface of the locking pliers at positions corresponding to the two brake holes, and a group of electric push rods are installed between the locking pliers and the basket body.

[0011] As a preferred technical solution of the present invention, a second tension sensor is provided at the connection between the two suspension cables and the hanging basket body, and the data end of the second tension sensor is connected to the single-chip microcomputer data.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, after the initial adjustment of the height of the hanging basket body is completed, the loading roller, the pulling cable and the first tension sensor are set so that a counterweight test can be carried out before the construction of the hanging basket body. By testing the counterweight of the hanging basket body, the maximum lifting force of the hanging basket body by the lifting device can be tested. The maximum lifting force of the hanging basket body can be obtained by the advance test of the lifting device, thereby improving the safety of the hanging basket body during bridge construction and achieving the weight limit of the hanging basket body during construction.

[0013] 2. When the lifting device is deployed, the counterweight box performs quantitative counterweighting and loading on the basket body. Through the cooperation of the counterweight box and the lifting mechanism, the basket body is limited in both directions from the up and down directions, thereby effectively improving the stability of the basket body. When the height of the basket body is adjusted, the electric push rod fully reduces the distance between the locking clamp and the basket body and allows the brake column to penetrate into the brake hole. When the brake column penetrates into the brake hole, the relative position of the positioning cable and the basket body is limited, thereby improving the safety of the basket body after deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a lifting device for a foldable external basket for a bridge according to the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 It is a structural schematic diagram of the lifting frame and the driven roller of the present invention; Figure 4 It is a structural schematic diagram of the first motor and the liquid storage tank of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 7 It is a schematic diagram of the structure of the driven roller and the liquid separation chamber of the present invention; Figure 8 It is a schematic diagram of the explosion structure of the suspension cable and the locking pliers of the present invention; Fig. 9 It is a schematic structural diagram of the positioning cable and the first tension sensor of the present invention.

[0015] In the figure: 1. hanging basket body; 2. lifting frame; 3. counterweight box; 4. main winding roller; 5. auxiliary winding roller; 6. driven roller; 7. first motor; 8. suspension cable; 9. positioning cable; 10. liquid distribution chamber; 11. liquid passage pipe; 12. lifting platform; 13. bridge body; 14. clamping frame; 15. clamping screw; 16. external pressure clamp; 17. profile clamp spring; 18. internal clamp arm; 19. profile clamp capsule; 20. air pressure probe; 21. second motor; 22. pulling roller; 23. pulling cable; 24. first tension sensor; 25. liquid storage tank; 26. pump liquid pipe; 27. suction pipe; 28. first guide roller; 29. ​​second guide roller; 30. guide pipe; 31. locking clamp; 32. brake hole; 33. brake column; 34. electric push rod; 35. second tension sensor. DETAILED DESCRIPTION

[0016] 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.

[0017] like Figures 1 to 9 As shown, the present invention provides a lifting device for a foldable external hanging basket for a bridge, comprising a hanging basket body 1 and a lifting frame 2; It also includes a lifting platform 12, and a walking mechanism capable of walking along the bridge body 13 is installed at the lower part of the lifting platform 12; The lifting platform 12 and the walking mechanism are common components in the prior art lifting device, and will not be described in detail here; A single chip microcomputer is installed on the lifting platform 12, the lifting frame 2 is fixedly connected to the lifting platform 12, and a longitudinal folding mechanism is provided on the hanging basket body 1; The hanging basket body 1 and the longitudinal folding mechanism on the hanging basket body 1 have been disclosed in existing documents and will not be described in detail here; The lifting frame 2 is equipped with two symmetrically arranged lifting mechanisms and a counterweight liquid distribution component, and also includes a counterweight box 3 arranged below the hanging basket body 1, and a counterweight cavity is opened inside the counterweight box 3. The lifting mechanism is used to limit the relative height of the hanging basket body 1 and the counterweight box 3; The lifting mechanism includes a main winding roller 4, an auxiliary winding roller 5 and a driven roller 6 which are rotatably connected to the inner surface of the lifting frame 2. The main winding roller 4 and the auxiliary winding roller 5 are driven by a first motor 7 respectively, and the auxiliary winding roller 5 is connected to the driven roller 6 through a chain belt. Two symmetrically arranged suspension cables 8 are wound on the main winding roller 4, and the two suspension cables 8 are fixedly connected to the hanging basket body 1; A second tension sensor 35 is provided at the connection between the two suspension cables 8 and the hanging basket body 1, and the data end of the second tension sensor 35 is connected to the single chip microcomputer data; By setting the second tension sensor 35, the tension value of the hanging basket body 1 on the two suspension cables 8 can be monitored in real time; Two symmetrically arranged positioning cables 9 are wound on the auxiliary winding roller 5, and the two positioning cables 9 are fixedly connected to the counterweight box 3; The lifting mechanism also includes two first guide rollers 28 and a second guide roller 29 rotatably connected to the inner surface of the lifting frame 2, the two first guide rollers 28 are both adapted to be connected to the suspension cable 8, and the second guide roller 29 is adapted to be connected to the positioning cable 9; The hanging basket body 1 is provided with two brake guide components cooperating with the positioning cable 9; The two brake guide assemblies each include two guide tubes 30 and a locking clamp 31 installed on the hanging basket body 1, each guide tube 30 is slidably connected to the positioning cable 9 at the corresponding position, a brake hole 32 is opened on the hanging basket body 1 at the position corresponding to the two guide tubes 30, a brake column 33 adapted to the brake hole 32 is installed on the surface of the locking clamp 31 at the position corresponding to the two brake holes 32, and a group of electric push rods 34 are installed between the locking clamp 31 and the hanging basket body 1; When the height of the hanging basket body 1 is adjusted, the positioning cable 9 is provided to effectively limit the movement direction and movable range of the hanging basket body 1, thereby improving the safety of the hanging basket body 1 during height adjustment; When the height of the hanging basket body 1 is adjusted, the electric push rod 34 fully reduces the distance between the locking clamp 31 and the hanging basket body 1 and allows the brake column 33 to penetrate into the brake hole 32. When the brake column 33 penetrates into the brake hole 32, the relative position of the positioning cable 9 and the hanging basket body 1 is then limited, thereby improving the safety of the hanging basket body 1 after deployment; A liquid separation chamber 10 connected to the weight liquid distribution component is fixedly opened inside the driven roller 6, and a liquid passage tube 11 is wound around the driven roller 6, and the two ends of the liquid passage tube 11 are respectively connected to the liquid separation chamber 10 and the weight chamber; The counterweight liquid distribution component includes a liquid storage tank 25, which is fixedly connected to the lifting frame 2. The liquid storage tank 25 is connected to two pump bodies, and the two pump bodies are respectively connected to a pumping pipe 26 and a liquid suction pipe 27. The other ends of the pumping pipe 26 and the liquid suction pipe 27 are respectively connected to the two liquid separation chambers 10. The liquid storage tank 25 is connected to a flange joint; During operation, the liquid storage tank 25 stores a sufficient amount of counterweight liquid. The two pump bodies are respectively a liquid delivery pump and a liquid return pump. Through the setting of the liquid delivery pump and the liquid return pump, the counterweight weight of the counterweight box 3 is effectively controlled and the dynamic adjustment of the counterweight weight in the counterweight box 3 is realized. The counterweight box 3 is connected with a bridge clamping component; The bridge clamping component includes a clamping frame 14 installed on the top surface of the counterweight box 3, and a clamping screw 15 driven by a clamping motor is rotatably connected between the inner surfaces of the clamping frame 14, and the clamping screw 15 is symmetrically provided with a positive thread segment and a negative thread segment; External pressure clamps 16 are drivingly connected to both the positive thread section and the negative thread section; By setting the positive thread segment and the negative thread segment, the two external pressure clamps 16 can be synchronously approached or synchronously moved away from each other, and the distance between the two external pressure clamps 16 can be quickly changed by the synchronous approaching or synchronously moving away from each other. The surfaces of the two outer clamps 16 are fixedly mounted with inner clamp arms 18 via a profile clamp spring 17, the profile clamp spring 17 is sleeved on the clamping screw 15, the outer clamps 16 and the inner clamp arms 18 are slidably connected to the clamp frame 14, the two inner clamp arms 18 are mounted with profile clamp capsules 19, the two inner clamp arms 18 are mounted with air pressure probes 20 for monitoring the internal air pressure of the profile clamp capsules 19, and the data end of the air pressure probe 20 is connected to the data of the single-chip computer.

[0018] By providing the inner clamp arm 18 and the contoured clamp capsule 19, the counterweight box 3 is effectively fixed on the pier of the bridge. Furthermore, by providing the contoured clamp capsule 19 and the contoured clamp spring 17, the fit between the inner clamp arm 18 and the bridge pier can be effectively improved, thereby improving the connection stability and connection strength between the inner clamp arm 18 and the bridge pier. The counterweight and load test components are installed between the counterweight box 3 and the hanging basket body 1; The counterweight and loading test components include a loading roller 22 which is rotatably connected between the inner surfaces of the clamping frame 14 and driven by a second motor 21. Two symmetrically arranged pulling cables 23 are wound around the loading roller 22. The other ends of the two pulling cables 23 are each installed with a first tension sensor 24. The other ends of the two first tension sensors 24 are each fixedly connected to the hanging basket body 1. The data ends of the two first tension sensors 24 are each connected to the microcontroller data.

[0019] After the initial height adjustment of the hanging basket body 1 is completed, the loading roller 22, the pulling cable 23 and the first tension sensor 24 are arranged so that a counterweight test can be performed before the construction of the hanging basket body 1. By testing the counterweight of the hanging basket body 1, the maximum lifting force of the lifting device on the hanging basket body 1 can be tested. The maximum lifting force of the hanging basket body 1 can be obtained by the advance test of the lifting device on the hanging basket body 1, thereby improving the safety of the hanging basket body 1 during the bridge construction and realizing the weight limit of the hanging basket body during the construction. After the hanging basket body 1 is arranged, the counterweight box 3 performs quantitative counterweighting and loading on the hanging basket body 1 , thereby bidirectionally limiting and maintaining the hanging basket body 1 in the up and down directions.

[0020] The working principle and use process of the present invention: When the height of the hanging basket body 1 is adjusted, the positioning cable 9 is provided to effectively limit the movement direction and movable range of the hanging basket body 1, thereby improving the safety of the hanging basket body 1 during height adjustment; When the height of the hanging basket body 1 is adjusted, the electric push rod 34 fully reduces the distance between the locking clamp 31 and the hanging basket body 1 and allows the brake column 33 to penetrate into the brake hole 32. When the brake column 33 penetrates into the brake hole 32, the relative position of the positioning cable 9 and the hanging basket body 1 is then limited, thereby improving the safety of the hanging basket body 1 after deployment; During operation, the liquid storage tank 25 stores a sufficient amount of counterweight liquid. The two pump bodies are respectively a liquid delivery pump and a liquid return pump. Through the setting of the liquid delivery pump and the liquid return pump, the counterweight weight of the counterweight box 3 is effectively controlled and the dynamic adjustment of the counterweight weight in the counterweight box 3 is realized. When the counterweight box 3 is arranged, the inner clamp arm 18 and the profiled clamp capsule 19 are arranged, so that the counterweight box 3 is effectively fixed on the bridge pier, and the profiled clamp capsule 19 and the profiled clamp spring 17 are arranged to effectively improve the fit between the inner clamp arm 18 and the bridge pier, thereby improving the connection stability and connection strength between the inner clamp arm 18 and the bridge pier. After the initial height adjustment of the hanging basket body 1 is completed, the pulling roller 22, the pulling cable 23 and the first tension sensor 24 are arranged, so that the hanging basket body can be adjusted. 1. A counterweight test is carried out before construction. By testing the counterweight of the hanging basket body 1, the maximum lifting force of the lifting device on the hanging basket body 1 is tested. The maximum lifting force of the hanging basket body 1 is obtained by the advance test of the lifting device, thereby improving the safety of the hanging basket body 1 during bridge construction and realizing the weight limit of the hanging basket body during construction. After the hanging basket body 1 is laid out, the counterweight box 3 performs quantitative counterweighting and pulling on the hanging basket body 1, thereby bidirectionally limiting the hanging basket body 1 in the up and down directions.

[0021] 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.

[0022] 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 lifting device for a foldable external hanging basket for a bridge, comprising a hanging basket body (1) and a lifting frame (2), wherein two symmetrically arranged lifting mechanisms and a counterweight liquid distribution component are installed on the lifting frame (2), characterized in that: It also includes a counterweight box (3) arranged below the hanging basket body (1), the lifting mechanism is used to limit the relative height of the hanging basket body (1) and the counterweight box (3), a counterweight cavity is opened inside the counterweight box (3), a bridge clamping component is connected to the counterweight box (3), and a counterweight and a pulling load test component are installed between the counterweight box (3) and the hanging basket body (1); The lifting mechanism comprises a main winding roller (4), an auxiliary winding roller (5) and a driven roller (6) which are rotatably connected between the inner surfaces of the lifting frame (2). The main winding roller (4) and the auxiliary winding roller (5) are respectively driven by a first motor (7). The auxiliary winding roller (5) is connected to the driven roller (6) through a chain belt. Two symmetrically arranged suspension cables (8) are wound around the main winding roller (4). The two suspension cables (8) are fixedly connected to the hanging basket body (1). Two symmetrically arranged positioning cables (9) are wound around the auxiliary winding roller (5). The two positioning cables (9) are fixedly connected to the counterweight box (3). The hanging basket body (1) is provided with two brake guide assemblies which cooperate with the positioning cables (9). A liquid separation chamber (10) which is connected to a counterweight liquid distribution component is fixedly opened inside the driven roller (6). A liquid passage pipe (11) is wound around the driven roller (6). The two ends of the liquid passage pipe (11) are respectively connected to the liquid separation chamber (10) and the counterweight chamber.

2. The lifting device for a foldable external basket for a bridge according to claim 1, characterized in that: It also comprises a lifting platform (12), a walking mechanism capable of walking along a bridge body (13) being installed at the lower part of the lifting platform (12), a single chip computer being installed on the lifting platform (12), the lifting frame (2) being fixedly connected to the lifting platform (12), and a longitudinal folding mechanism being provided on the hanging basket body (1).

3. The lifting device for a foldable external basket for a bridge according to claim 2 is characterized in that: The bridge clamping component comprises a clamping frame (14) installed on the top surface of the counterweight box (3), and a clamping screw (15) driven by a clamping motor is rotatably connected between the inner surfaces of the clamping frame (14), and a positive thread segment and a negative thread segment are symmetrically arranged on the clamping screw (15), and the positive thread segment and the negative thread segment are both transmission-connected with an external pressure clamp (16), and the surfaces of the two external pressure clamps (16) are fixedly installed with an inner clamp arm (18) through a profiling clamp spring (17), and the profiling clamp spring (17) is sleeved on the clamping screw (15), and the external pressure clamp (16) and the inner clamp arm (18) are both slidably connected to the clamping frame (14), and the two inner clamp arms (18) are both installed with a profiling clamp bag (19), and the two inner clamp arms (18) are both installed with an air pressure probe (20) for monitoring the internal air pressure of the profiling clamp bag (19), and the data end of the air pressure probe (20) is connected to the data of the single-chip computer.

4. The lifting device for a foldable external basket for a bridge according to claim 3 is characterized in that: The counterweight and pulling test component comprises a pulling roller (22) rotatably connected between the inner surfaces of the clamping frame (14) and driven by a second motor (21), two symmetrically arranged pulling cables (23) are wound around the pulling roller (22), the other ends of the two pulling cables (23) are each installed with a first pulling force sensor (24), the other ends of the two first pulling force sensors (24) are each fixedly connected to the hanging basket body (1), and the data ends of the two first pulling force sensors (24) are each connected to the data of the single-chip computer.

5. The lifting device for a foldable external basket for a bridge according to claim 1 is characterized in that: The counterweight liquid distribution component comprises a liquid storage tank (25), the liquid storage tank (25) is fixedly connected to the lifting frame (2), the liquid storage tank (25) is connected to two pump bodies, the two pump bodies are respectively connected to a pumping pipe (26) and a suction pipe (27), the other ends of the pumping pipe (26) and the suction pipe (27) are respectively connected to two liquid distribution chambers (10), and the liquid storage tank (25) is connected to a flange joint.

6. The lifting device for a foldable external basket for a bridge according to claim 1 is characterized in that: The lifting mechanism also includes two first guide rollers (28) and a second guide roller (29) rotatably connected to the inner surface of the lifting frame (2), the two first guide rollers (28) are both adaptively connected to the suspension cable (8), and the second guide roller (29) is adaptively connected to the positioning cable (9).

7. The lifting device for a foldable external basket for a bridge according to claim 1 is characterized in that: The two brake guide assemblies each comprise two guide tubes (30) and a locking clamp (31) mounted on the hanging basket body (1); each of the guide tubes (30) is slidably connected to a positioning cable (9) at a corresponding position; a brake hole (32) is provided on the hanging basket body (1) at a position corresponding to the two guide tubes (30); a brake column (33) adapted to the brake hole (32) is installed on the surface of the locking clamp (31) at a position corresponding to the two brake holes (32); and a group of electric push rods (34) is installed between the locking clamp (31) and the hanging basket body (1).

8. The lifting device for a foldable external basket for a bridge according to claim 2 is characterized in that: A second tension sensor (35) is provided at the connection point between the two suspension cables (8) and the hanging basket body (1), and a data end of the second tension sensor (35) is connected to the single-chip computer data.

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