Reinforcement cage positioning and mounting device and construction process thereof

Abstract

The invention relates to a reinforcement cage positioning and mounting device and a construction technology thereof, and relates to the technical field of building construction, the reinforcement cage positioning and mounting device comprises a protective cylinder, the protective cylinder is fixedly mounted, the reinforcement cage positioning and mounting device further comprises a limiting mechanism, a hoisting mechanism and a positioning mechanism, the limiting mechanism is mounted on the side wall of the protective cylinder, and the limiting mechanism plays a guiding role in mounting of a reinforcement cage; the hoisting mechanism is installed on the reinforcement cage, the reinforcement cage is hoisted through the hoisting mechanism, the positioning mechanism comprises a positioning platform and a positioning rod, the pile casing is sleeved with the positioning platform, the positioning rod is installed on the positioning platform, and the positioning rod is used for fixing the reinforcement cage. The connecting structure has the effect of reducing potential safety hazards when the multiple reinforcement cages are connected.

Description

Technical Field

[0001] The present application relates to the field of building construction technology, and in particular to a reinforcement cage positioning and installation device. Background Art

[0002] In the construction of building projects, the foundation structure is very important. Bored pile technology is a common and effective method of foundation reinforcement, which can not only improve the stability of the soil, but also save engineering costs and improve the safety of buildings. In the construction of bored piles, due to the large size of the steel cage, it is usually necessary to use a crane and manual methods to hoist and fix it.

[0003] The existing lifting methods are not only difficult for workers to control when they encounter some steel cages with larger diameters, but also more difficult. If only traditional cranes and manual methods are used for lifting, problems such as offset and dislocation are prone to occur. At the same time, in order to facilitate the transportation and handling of the steel cages, it is usually necessary to connect several steel cages together when the height of the steel cage is not enough. However, due to the large size of the steel cage, lifting the steel cage too high for welding poses certain safety hazards. Summary of the invention

[0004] In order to reduce the potential safety hazard when connecting several steel cages, the present application provides a steel cage positioning and installation device.

[0005] The present application provides a steel cage positioning and installation device that adopts the following technical solution: A steel cage positioning and installation device comprises a casing, which is fixedly installed, and also comprises a limiting mechanism, a lifting mechanism and a positioning mechanism, wherein the limiting mechanism is installed on the side wall of the casing, and the limiting mechanism guides the installation of the steel cage, the lifting mechanism is installed on the steel cage, and the steel cage is lifted by the lifting mechanism, the positioning mechanism comprises a positioning platform and a positioning rod, the positioning platform is sleeved on the casing, the positioning rod is installed on the positioning platform, and the positioning rod is used to fix the steel cage.

[0006] By adopting the above technical solution, the limiting mechanism is installed on the casing, the lifting mechanism is installed on the steel cage, the crane applies force to the lifting mechanism to lift the steel cage, and the steel cage is placed in the drilled hole under the limiting action of the limiting mechanism. When the height of the steel cage is not enough and another steel cage needs to be welded, the positioning rod set on the positioning platform is clamped in the steel cage to support the steel cage, thereby facilitating the welding of the steel cage.

[0007] In a specific feasible implementation scheme, the limiting mechanism includes a limiting sleeve, a limiting steel pipe and a limiting rod, the limiting sleeve is fixedly connected to the limiting rod, the limiting steel pipe is detachably connected to the limiting sleeve, the limiting rod is provided with a positioning clip, the positioning clip can be clamped on the side wall of the casing, and the limiting sleeve is installed with a lifting ring.

[0008] By adopting the above technical scheme, the positioning rod is fixedly connected to the positioning sleeve, and the limiting steel pipe is detachably connected to the side wall of the casing. Then, by lifting the positioning sleeve, the limiting steel pipe is moved to a predetermined position, and then the positioning clip arranged on the positioning rod is clamped on the side wall of the casing, so that the installation of the steel cage can be limited by the limiting steel pipe, thereby avoiding the steel cage from being skewed during the installation process.

[0009] In a specific feasible implementation scheme, the limiting mechanism includes a fastening structure, which includes a fastening screw and a fastening nut. A limiting groove is provided on the limiting sleeve, one end of the limiting steel pipe is inserted into the limiting groove, the fastening screw passes through the side wall of the limiting sleeve and the limiting steel pipe, and two fastening nuts are provided. The two fastening nuts are threadedly connected at both ends of the fastening screw and can be tightened against the side wall of the limiting sleeve.

[0010] By adopting the above technical solution, the fastening screw passes through the positioning side wall and the limiting steel pipe, and then the fastening nuts arranged at both ends of the fastening screw are screwed in the direction of the positioning sleeve and pressed against the side wall of the positioning sleeve to fix the limiting steel pipe, thereby ensuring the stability of the limiting steel pipe.

[0011] In a specific implementation scheme, the positioning clamp includes a first positioning piece and a second positioning piece, the first positioning piece and the second positioning piece are installed on the end of the limiting rod away from the limiting sleeve, and the distance between the first positioning piece and the second positioning piece corresponds to the side wall of the casing.

[0012] By adopting the above technical solution, the first positioning piece and the second positioning piece are arranged at the end of the positioning rod away from the positioning sleeve, and the distance between the first positioning piece and the second positioning piece is set corresponding to the thickness of the side wall of the casing, so that the first positioning piece and the second positioning piece can be clamped on the side wall of the casing to ensure the stability of the installation of the limiting steel pipe.

[0013] In a specific feasible implementation scheme, the lifting mechanism includes a hanging rod and a pin positioning tube, a U-shaped plate is provided at one end of the hanging rod, a clamping groove is opened on the U-shaped plate, a support rod is provided at the other end of the hanging rod, the pin positioning tube passes through the support rod and the U-shaped plate and is arranged away from one end of the hanging rod, and the pin positioning tube can move relative to the support rod and the U-shaped plate.

[0014] By adopting the above technical solution, when hoisting the steel cage, take out the pin positioning tube set on the lifting rod, put the inner reinforcement hoop of the steel cage into the clamping groove of the U-shaped plate, insert the support rod into the steel cage, and then insert the pin positioning tube into the support rod and the U-shaped plate to complete the locking. The hook of the hoist is clamped on the support rod, thereby ensuring the stability when lifting the steel bar and avoiding direct contact between the hook and the steel cage, which may cause damage to the steel cage.

[0015] In a specific possible implementation scheme, a plurality of support rods are provided, and the plurality of support rods are arranged in sequence along the height direction of the suspension rod, and support grooves are formed between adjacent support rods.

[0016] By adopting the above technical solution and setting a number of support rods, support grooves are formed between adjacent support rods, so that different parts of the steel cage can be clamped in different support grooves, thereby dispersing the force applied to the steel cage, thereby further ensuring the stability of the steel cage lifting and protecting the steel cage structure.

[0017] In a specific feasible implementation scheme, it also includes a limit plate and a positioning plate, and two groups of the limit plate, positioning plate and positioning rod are provided, and the two groups of the limit plate, positioning plate and positioning rod are symmetrically installed on both sides of the positioning platform, and the limit plate and the positioning plate are respectively installed on the inner and outer side walls of the positioning platform, and a limit hole is provided on the limit plate, one end of the positioning rod is arranged through the limit hole, and the positioning rod can be overlapped on the positioning plate.

[0018] By adopting the above technical solution, two groups of limit plates, positioning plates and positioning rods are provided, and the two groups of limit plates, positioning plates and positioning rods are symmetrically installed on both sides of the positioning platform. One end of the positioning rod can pass through the limit hole set on the limit plate and overlap on the positioning rod, so that the steel cage can be supported from both sides, thereby ensuring the stability of the steel cage when connected and avoiding problems such as skewing of the steel cage.

[0019] In a specific possible implementation scheme, it also includes a locking structure, which includes a first locking seat, a second locking seat, a first locking block and a second locking block, the first locking seat is installed on one of the positioning rods, the second locking seat is installed on the other positioning rod, the first locking block is installed on the first locking seat, the second locking block is installed on the second locking seat, the first locking block can be clamped on the second locking seat, and the second locking block can be clamped on the first locking seat.

[0020] By adopting the above technical solution, the first locking seat is installed on one of the positioning rods, and the second locking seat is installed on the other positioning rod. The first locking seat is provided with a first locking block, and the second locking seat is provided with a second locking block. The two positioning rods are connected at adjacent ends, and the two positioning rods are rotated in the same direction. The first locking block is clamped on the second locking seat, and the second locking block is clamped on the first locking seat, so that the two positioning rods are locked and connected to each other, thereby avoiding damage to the positioning rods.

[0021] In a specific implementation scheme, two of each of the first locking seat, the second locking block, the first locking block and the second locking block are provided, the two first locking seats are symmetrically installed, and the two second locking seats are installed corresponding to the first locking seats.

[0022] By adopting the above technical solution, two first locking seats and two second locking seats are provided, the two first locking seats are symmetrically arranged, and the two second locking seats are symmetrically arranged, thereby further ensuring the stability of the direct connection between the two positioning rods.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The limiting mechanism is installed on the casing, the lifting mechanism is installed on the steel cage, and the lifting mechanism is applied by the crane to lift the steel cage, and the steel cage is placed in the drilled hole under the limiting action of the limiting mechanism. When the height of the steel cage is not enough and another steel cage needs to be welded, the positioning rod set on the positioning platform is clamped in the steel cage to support the steel cage, thereby facilitating the welding of the steel cage; 2. The positioning rod is fixedly connected to the positioning sleeve, and the limiting steel pipe is detachably connected to the side wall of the casing. The positioning sleeve is then lifted to move the limiting steel pipe to a predetermined position, and then the positioning clip provided on the positioning rod is clamped on the side wall of the casing, so that the installation of the steel cage can be limited by the limiting steel pipe to avoid the steel cage from being skewed during the installation process; 3. When hoisting the steel cage, take out the pin positioning tube set on the lifting rod, put the inner reinforcement hoop of the steel cage into the clamping groove of the U-shaped plate, insert the support rod into the steel cage, and then insert the pin positioning tube into the support rod and the U-shaped plate to complete the locking. The hook of the hoist is clamped on the support rod to ensure the stability when lifting the steel bar and avoid direct contact between the hook and the steel cage, which may cause damage to the steel cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the fracture structure of an embodiment of the present application.

[0025] Figure 2 This is a fracture cross-sectional view of an embodiment of the present application.

[0026] Figure 3Schematic diagram of the structure of the limiting mechanism in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the structure of the lifting mechanism in the embodiment of the present application.

[0028] Figure 5 for Figure 1 Enlarged view of part A.

[0029] Figure 6 It is a structural schematic diagram of the fastening structure in an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. casing; 2. limiting mechanism; 21. limiting sleeve; 22. limiting steel pipe; 23. limiting rod; 24. fastening structure; 241. fastening screw; 242. fastening nut; 25. positioning clamp; 251. first positioning plate; 252. second positioning plate; 26. lifting ring; 3. lifting mechanism; 31. lifting rod; 32. pin positioning tube; 33. support rod; 331. support groove; 34. U-shaped plate; 341. clamping groove; 4. positioning mechanism; 41. positioning platform; 42. limiting plate; 421. limiting hole; 43. positioning plate; 431. U-shaped groove; 44. positioning rod; 5. locking structure; 51. first locking seat; 511. first locking groove; 52. second locking seat; 521. second locking groove; 53. first locking block; 54. second locking block; 6. steel cage. DETAILED DESCRIPTION

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0033] The embodiment of the present application discloses a steel cage positioning and installation device.

[0034] like Figure 1 and Figure 2As shown, the steel cage positioning and installation device includes a casing 1, a limiting mechanism 2, a lifting mechanism 3 and a positioning mechanism 4. The casing 1 is installed at the upper opening of the drill hole, the limiting mechanism 2 is installed on the casing 1, the limiting mechanism 2 is used to guide the installation of the steel cage 6, the lifting mechanism 3 is installed on the steel cage 6, the lifting mechanism 3 is used to lift the steel cage 6, and the positioning mechanism 4 is installed at the upper opening of the drill hole to position the steel cage 6, so as to facilitate welding of two steel cages 6.

[0035] like Figure 3 As shown, the limiting mechanism 2 is provided with four groups, and the four groups of limiting mechanisms 2 are installed at equal intervals on the circumferential part of the side wall of the casing 1. The limiting mechanism 2 includes a limiting sleeve 21, a limiting steel pipe 22, a limiting rod 23 and a fastening structure 24. The limiting sleeve 21 is fixedly connected to one end of the limiting rod 23. A limiting groove is provided on the limiting sleeve 21. One end of the limiting steel pipe 22 is inserted into the limiting groove. The fastening structure 24 includes a fastening screw 241 and a fastening nut 242. Both sides of the limiting sleeve 21 are fixedly connected to the limiting rod 23. The side wall is symmetrically provided with sleeve fastening grooves, and the limiting steel pipe 22 is provided with steel pipe fastening grooves corresponding to the sleeve fastening grooves. The fastening screw 241 passes through the sleeve fastening groove and the steel pipe fastening groove. Two fastening nuts 242 are provided. The two fastening nuts 242 are threadedly connected to the two ends of the fastening screw 241 and can be tightened and abutted against the side wall of the limiting sleeve 21. The limiting sleeve 21 is provided with a lifting ring 26, which is used for lifting the limiting sleeve 21 and the limiting steel pipe 22.

[0036] The positioning rod 44 is fixedly connected to the positioning sleeve, and the limiting steel pipe 22 is detachably connected to the side wall of the casing 1. The positioning sleeve is lifted to move the limiting steel pipe 22 to a predetermined position, and then the positioning clip 25 arranged on the positioning rod 44 is clamped on the side wall of the casing 1, so that the installation of the steel cage 6 can be limited by the limiting steel pipe 22 to avoid the steel cage 6 from being skewed during the installation process.

[0037] A positioning clip 25 is provided at one end of the limiting rod 23 away from the limiting sleeve 21, and the positioning clip 25 includes a first positioning piece 251 and a second positioning piece 252. The first positioning piece 251 and the second positioning piece 252 are installed on the positioning rod 44, and the spacing between the first positioning piece 251 and the second positioning piece 252 is set corresponding to the wall thickness of the side wall of the casing 1, and the first positioning piece 251 and the second positioning piece 252 are set as arc-shaped pieces corresponding to the side wall of the casing 1. The first positioning piece 251 and the second positioning piece 252 are respectively clamped on the inner and outer sides of the side wall of the casing 1, and can fit on the side wall of the casing 1.

[0038] like Figure 4As shown, the lifting mechanism 3 includes a hanging rod 31 and a pin positioning tube 32. A U-shaped plate 34 is provided at one end of the hanging rod 31. A clamping groove 341 is opened on the U-shaped plate 34. A plurality of support rods 33 are provided at the other end of the hanging rod 31. The plurality of support rods 33 are evenly arranged along the height direction of the hanging rod 31. A support groove 331 is formed between adjacent support rods 33. The reinforcing stirrups on the inner side of the steel cage 6 can be clamped in the support groove 331 and the clamping groove 341. The pin positioning tube 32 penetrates the support rod 33 and the U-shaped plate 34 and is arranged away from one end of the hanging rod 31. The pin positioning tube 32 can move relative to the support rod 33 and the U-shaped plate 34, so as to block the support groove 331 and the clamping groove 341, thereby installing the hanging rod 31 on the steel cage 6.

[0039] When the steel cage 6 is hoisted, the pin positioning tube 32 set on the lifting rod 31 is taken out, the inner reinforcement hoop of the steel cage 6 is placed into the clamping groove 341 of the U-shaped plate 34, the support rod 33 is inserted into the steel cage 6, and then the pin positioning tube 32 is inserted into the support rod 33 and the U-shaped plate 34 to complete the locking. The hook of the hoist is clamped on the support rod 33, thereby ensuring the stability when lifting the steel bars and avoiding direct contact between the hook and the steel cage 6, causing damage to the steel cage 6, and at the same time ensuring the stability of the lifting of the steel cage 6.

[0040] like Figure 5 As shown, the positioning mechanism 4 includes a positioning platform 41, a limit plate 42, a positioning plate 43 and a positioning rod 44. A platform pupil is opened in the center of the positioning platform 41. The positioning platform 41 is sleeved on the casing 1 and is coaxially arranged with the casing 1. The limit plate 42, the positioning plate 43 and the positioning rod 44 are each provided with two groups. The two groups of limit plates 42, positioning plates and positioning rods 44 are symmetrically installed on both sides of the positioning platform 41. The limit plate 42 is installed on the outer wall of the positioning platform 41, and the positioning plate 43 is installed on the inner wall of the positioning platform 41. A limit hole 421 is opened on the limit plate 42, and a U-shaped groove 431 is opened on the positioning plate 43. One end of the positioning rod 44 is arranged through the limit hole 421, and the rod body of the positioning rod 44 can be overlapped in the U-shaped groove 431.

[0041] There are two groups of limit plates 42, positioning plates 43 and positioning rods 44, which are symmetrically installed on both sides of the positioning platform 41. One end of the positioning rod 44 can pass through the limit hole 421 set on the limit plate 42 and overlap on the positioning rod 44, so that the steel cage 6 can be supported from both sides, thereby ensuring the stability of the steel cage 6 when connected and avoiding the problem of skewing of the steel cage 6.

[0042] like Figure 6As shown, in the embodiment of the present application, a locking structure 5 is also included, and the locking structure 5 includes a first locking seat 51, a second locking seat 52, a first locking block 53 and a second locking block 54. The first locking seat 51, the second locking seat 52, the first locking block 53 and the second locking block 54 are each provided with two, and the two first locking seats 51 are symmetrically installed on one end of one of the positioning rods 44 adjacent to the other positioning rod 44, and the second locking seat 52 is symmetrically installed on the other positioning rod 44 corresponding to the first locking seat 51. The first locking block 53 is fixedly connected to the first locking seat 51, and the second locking block 54 is fixedly connected to the second locking seat 52. The first locking block 53 and the second locking block 54 are both arranged as arc blocks. A locking block 53 is chamfered away from one end of the first locking seat 51, so that the connection between the two positioning rods 44 can be tighter as the positioning rod 44 rotates. The second locking block 54 is arranged corresponding to the first locking block 53. The first locking seat 51 is provided with a first locking groove 511, and the second locking seat 52 is provided with a second locking groove 521. The first locking block 53 can be snapped into the second locking groove 521, and the second locking block can be snapped into the first locking groove 511, so that the two positioning rods 44 can be connected, avoiding the problem of bending due to the shear force on the end of the positioning rod 44 adjacent to the steel cage 6 when a single positioning rod 44 supports the steel cage 6 for welding multiple steel cages 6.

[0043] The implementation principle of a steel cage positioning and installation device in the embodiment of the present application is as follows: the limiting steel pipe 22 is installed in the limiting groove of the limiting sleeve 21 by tightening the screw 241 and the tightening nut 242, and then the limiting steel pipe 22 is installed in the drilled hole by cooperating with the first positioning piece 251 and the second positioning piece 252. When the steel cage 6 is hoisted, the pin positioning tube 32 set on the hanging rod 31 is taken out, and the inner reinforcing hoist of the steel cage 6 is placed in the clamping groove 341 of the U-shaped plate 34, and the support rod 33 is inserted into the steel cage 6. Then the pin positioning tube 32 is inserted into the support rod 33 and the U-shaped plate 34 to complete the locking. The hook claw of the hoist is clamped on the support rod 33, so as to ensure the stability when lifting the steel bar and avoid direct contact between the hook claw and the steel cage 6, which causes damage to the steel cage 6. , and at the same time, the stability of the lifting of the steel cage 6 can be ensured. One end of the positioning rod 44 can pass through the limiting hole 421 set on the limiting plate 42 and overlap on the positioning rod 44, so that the steel cage 6 can be supported from both sides. The first locking seat 51 is installed on one of the positioning rods 44, and the second locking seat 52 is installed on the other positioning rod 44. The first locking seat 51 is provided with a first locking block 53, and the second locking seat 52 is provided with a second locking block 54. The two positioning rods 44 are connected at one end adjacent to each other, and the two positioning rods 44 are rotated in the same direction. The first locking block 53 is clamped on the second locking seat 52, and the second locking block 54 is clamped on the first locking seat 51, so that the two positioning rods 44 are locked and connected to each other to support the steel cage 6, thereby facilitating the welding of the steel cage 6.

[0044] The present application embodiment discloses a steel cage positioning and installation construction process, using the steel cage positioning and installation device of the present application embodiment, including the following steps: S10: Install the limiting mechanism 2 on the casing 1; The positioning rod 44 is fixedly connected to the positioning sleeve, and the limiting steel pipe 22 is detachably connected to the side wall of the casing 1. Then, by lifting the positioning sleeve, the limiting steel pipe 22 is moved to a predetermined position and then clamped on the side wall of the casing 1 by the positioning clip 25 set on the positioning rod 44.

[0045] S20: Install the positioning mechanism 4 to the drilling position; S30: lowering the steel cage 6 into the drill hole through the lifting mechanism 3 with the cooperation of the limiting mechanism 2; Take out the pin positioning tube 32 set on the hanging rod 31, put the inner reinforcement hoop of the steel cage 6 into the clamping groove 341 of the U-shaped plate 34, insert the support rod 33 into the steel cage 6, and then insert the pin positioning tube 32 into the support rod 33 and the U-shaped plate 34 to complete the locking, and the hook of the hoist is clamped on the support rod 33, so as to install the steel cage 6 from the bottom.

[0046] S40: judging whether several steel cages 6 need to be welded according to the height of the steel cages 6, if necessary, fixing the steel cages 6 lowered first by the positioning mechanism 4 to facilitate the welding work, if not, just placing the steel cages 6; If welding is required, one end of the positioning rod 44 can pass through the limiting hole 421 set on the limiting plate 42 and overlap on the positioning rod 44, and the two positioning rods 44 are rotated in the same direction. The first locking block 53 is clamped on the second locking seat 52, and the second locking block 54 is clamped on the first locking seat 51, so that the two positioning rods 44 are locked and connected with each other, the steel cage 6 is supported, and welding work is carried out.

[0047] S50: dismantling the limit mechanism 2, the lifting mechanism 3, the positioning mechanism 4 and other devices.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel cage positioning and installation device, comprising a casing (1), wherein the casing (1) is fixedly installed, and is characterized in that: The invention comprises a limiting mechanism (2), a lifting mechanism (3) and a positioning mechanism (4); the limiting mechanism (2) is installed on the side wall of the casing (1); the limiting mechanism (2) plays a guiding role in the installation of the steel cage (6); the lifting mechanism (3) is installed on the steel cage (6); the steel cage (6) is lifted by the lifting mechanism (3); the positioning mechanism (4) comprises a positioning platform (41) and a positioning rod (44); the positioning platform (41) is sleeved on the casing (1); the positioning rod (44) is installed on the positioning platform (41); and the positioning rod (44) is used to fix the steel cage (6).

2. The steel cage positioning and installation device according to claim 1 is characterized in that: The limiting mechanism (2) comprises a limiting sleeve (21), a limiting steel pipe (22) and a limiting rod (23); the limiting sleeve (21) is fixedly connected to the limiting rod (23); the limiting steel pipe (22) is detachably connected to the limiting sleeve (21); a positioning clamp (25) is provided on the limiting rod (23); the positioning clamp (25) can be clamped on the side wall of the casing (1); and a lifting ring is installed on the limiting sleeve (21).

3. The steel cage positioning and installation device according to claim 2 is characterized in that: The limiting mechanism (2) comprises a fastening structure (24), wherein the fastening structure (24) comprises a fastening screw (241) and a fastening nut (242); a limiting groove is provided on the limiting sleeve (21), one end of the limiting steel pipe (22) is inserted into the limiting groove, the fastening screw (241) passes through the side wall of the limiting sleeve (21) and the limiting steel pipe (22), and two fastening nuts (242) are provided, and the two fastening nuts (242) are threadedly connected to the two ends of the fastening screw (241) and can be tightly pressed against the side wall of the limiting sleeve (21).

4. The steel cage positioning and installation device according to claim 2 is characterized in that: The positioning clamp (25) comprises a first positioning piece (251) and a second positioning piece (252), wherein the first positioning piece (251) and the second positioning piece (252) are mounted on an end of the limiting rod (23) away from the limiting sleeve (21), and the spacing between the first positioning piece (251) and the second positioning piece (252) corresponds to the side wall of the casing (1).

5. The steel cage positioning and installation device according to claim 1 is characterized in that: The lifting mechanism (3) comprises a hanging rod (31) and a pin positioning tube (32); a U-shaped plate (34) is arranged at one end of the hanging rod (31); a clamping groove (341) (331) is provided on the U-shaped plate (34); a support rod (33) is arranged at the other end of the hanging rod (31); the pin positioning tube (32) penetrates the support rod (33) and the U-shaped plate (34) and is arranged away from one end of the hanging rod (31); and the pin positioning tube (32) can move relative to the support rod (33) and the U-shaped plate (34).

6. The steel cage positioning and installation device according to claim 5, characterized in that: A plurality of the support rods (33) are provided, and the plurality of the support rods (33) are arranged in sequence along the height direction of the suspension bar (31), and support grooves are formed between adjacent support rods (33).

7. The steel cage positioning and installation device according to claim 1 is characterized in that: The invention also comprises a limiting plate (42) and a positioning plate (43), wherein the limiting plate (42), the positioning plate (43) and the positioning rod (44) are provided in two groups, and the two groups of the limiting plate (42), the positioning plate (43) and the positioning rod (44) are symmetrically installed on both sides of the positioning platform (41), and the limiting plate (42) and the positioning plate (43) are respectively installed on the inner and outer side walls of the positioning platform (41), and the limiting plate (42) is provided with a limiting hole (421), and one end of the positioning rod (44) is arranged to pass through the limiting hole (421), and the positioning rod (44) can be overlapped on the positioning plate (43).

8. The steel cage positioning and installation device according to claim 7, characterized in that: The invention also comprises a locking structure (5), wherein the locking structure (5) comprises a first locking seat (51), a second locking seat (52), a first locking block (53) and a second locking block (54); the first locking seat (51) is mounted on one of the positioning rods (44); the second locking seat (52) is mounted on the other positioning rod (44); the first locking block (53) is mounted on the first locking seat (51); the second locking block (54) is mounted on the second locking seat (52); the first locking block (53) can be clamped on the second locking seat (52); and the second locking block (54) can be clamped on the first locking seat (51).

9. The reinforcement cage positioning and installation device according to claim 8, characterized in that: The first locking seat (51), the second locking block (54), the first locking block (53) and the second locking block (54) are each provided with two, the two first locking seats (51) are symmetrically installed, and the two second locking seats (52) are installed corresponding to the first locking seats (51).

10. A steel cage positioning and installation construction process, using the steel cage positioning and installation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S10: Installing the limiting mechanism (2) on the casing (1); S20: Installing the positioning mechanism (4) to the drilling hole; S30: Using the lifting mechanism (3), the steel cage (6) is moved to the bottom of the drilling hole in cooperation with the limiting mechanism (2); S40: judging whether several steel cages (6) need to be welded according to the height of the steel cage (6); if so, fixing the steel cage (6) lowered first by the positioning mechanism (4) to facilitate the welding work; if not, just placing the steel cage (6); S50: dismantling the limiting mechanism (2), the lifting mechanism (3), the positioning mechanism (4) and other devices.

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