Tunnel steel reinforcement cage sliding into place device and construction method

Abstract

The application relates to the technical field of shield tunnel construction, in particular to a tunnel reinforcement cage sliding and positioning device, which comprises a tunnel segment, a mid-part wall, a connecting piece and a reinforcement cage main body, the mid-part wall and the tunnel segment are connected through anchor bolts and concrete, the connecting piece is installed on the tunnel segment, the connecting piece is located at the top of the mid-part wall, a groove track is arranged at the top of the mid-part wall, the reinforcement cage main body comprises a reinforcement cage main reinforcement, a reinforcement cage stirrup and a protective layer cushion block, the reinforcement cage stirrup is used for binding the reinforcement cage main reinforcement, and the protective layer cushion block is sleeved with the reinforcement cage stirrup at a position close to the groove track. The protective layer cushion block arranged on the bottom stirrup of the reinforcement cage stirrup reduces the friction resistance in the process of moving and installing the reinforcement cage main body in the groove track at the top of the mid-part wall, facilitates the high-altitude operation of workers, and reduces the risk of high-altitude operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield tunnel construction, in particular to a tunnel reinforcement cage sliding positioning device and a construction method. BACKGROUND

[0002] In tunnel construction, the tunnel is divided into left and right lanes, and a partition wall needs to be set in the middle of the tunnel. The partition wall is generally a prefabricated component. After the partition wall is initially installed and positioned, it is necessary to connect the partition wall top with the shield segment through anchor bolts and cast-in-place concrete to ensure the structural integrity.

[0003] In the prior art, the reinforcement cage at the top of the partition wall is an elongated structure with the same orientation as the tunnel. The top of the partition wall is relatively high from the ground, so the reinforcement cage is generally processed on the ground. The reinforcement cage is lifted, one end of the reinforcement cage is placed in the gap between the partition wall top and the segment, and then the reinforcement cage is pushed in along the length direction of the reinforcement cage. Because there are steel plates on the left and right sides of the partition wall connected with the segment, the reinforcement cage can only be pushed into the partition wall top in the longitudinal direction of the reinforcement cage. Due to the friction between the reinforcement cage and the partition wall during the pushing process, it is difficult to push in, and it is a manual high-altitude operation. Therefore, the length of each reinforcement cage is limited, generally not more than two meters, while the steel bars on the construction site are generally 6 meters long, which requires cutting the steel bars, increasing the cost of steel bar production. SUMMARY

[0004] The purpose of the present application is to provide a tunnel reinforcement cage sliding positioning device and a construction method to solve the above problems.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a tunnel reinforcement cage sliding positioning device, comprising a tunnel segment, a partition wall, a connecting piece and a reinforcement cage main body, the partition wall and the tunnel segment are connected by anchor bolts and concrete, the connecting piece is installed on the tunnel segment, the connecting piece is located at the top of the partition wall, a groove track is provided at the top of the partition wall, the reinforcement cage main body comprises a reinforcement cage main bar, a reinforcement cage stirrup and a protective layer cushion block, the reinforcement cage stirrup is wrapped around the reinforcement cage main bar, the protective layer cushion block is sleeved on the position of the reinforcement cage stirrup close to the groove track, the reinforcement cage main body moves on the groove track through the protective layer cushion block, two parallel guide rails are provided in the tunnel segment, and the two parallel guide rails have a supporting mechanism for supporting the reinforcement cage into the groove track.

[0006] Optionally, the protective layer cushion block is provided with at least two, the spacing between all the protective layer cushion blocks is the same, the protective layer cushion block is made of concrete, the protective layer cushion block is a cylinder, and the middle part of the protective layer cushion block has a steel bar installation through hole.

[0007] Optionally, the supporting mechanism comprises a mounting box, a connecting mechanism for improving the stability of the mounting box is arranged on the mounting box, four telescopic rods are fixedly connected to the two sides of the mounting box, support frames are fixedly connected to the top ends of the four telescopic rods, a mounting frame is fixedly installed at the top of the support frame, a supporting roller is rotatably connected to the middle part of the mounting frame through a positioning frame, two limiting frames are connected to the two sides of the mounting frame through an adjusting mechanism, and a limiting roller is rotatably connected to the side of each limiting frame that is close to the other limiting frame.

[0008] Optionally, the connecting mechanism comprises two fixed clamps, the two fixed clamps are rotatably connected to the two sides of the mounting box through rotating shafts, the two ends of the rotating shafts penetrate out of the mounting box, a plurality of positioning strips are arranged on the fixed clamps, and a driving mechanism for driving the rotation of the fixed clamps is arranged in the mounting box.

[0009] Optionally, the driving mechanism comprises two first gears, the two first gears are fixedly connected to the middle parts of the two rotating shafts respectively, a second gear is rotatably connected to the position of the mounting box close to one of the first gears through a connecting shaft, the second gear is engaged with one of the first gears, the second gear and the other first gear are drivingly connected through a transmission mechanism, a straight rack is slidingly connected to the position of the mounting box close to the second gear, the straight rack is engaged with the second gear, an electric cylinder is fixedly connected to the lower part of the inner cavity of the mounting box, the electric cylinder has an output end, and the output end is fixedly connected to one end of the straight rack.

[0010] Optionally, the transmission mechanism comprises a first belt pulley, the first belt pulley is fixedly connected to the connecting shaft, a second belt pulley is fixedly connected to the rotating shaft fixedly connected with the other first gear, and the first belt pulley and the second belt pulley are drivingly connected through a transmission belt.

[0011] Optionally, the other end of the straight rack is provided with a guide hole, a guide rod is slidingly connected to the guide hole, and one end of the guide rod away from the straight rack is fixedly connected to the wall of the mounting box.

[0012] Optionally, the adjusting mechanism comprises an electric motor, the electric motor is fixedly connected to the middle part of the mounting frame, two lead screws are rotatably connected to the two sides of the mounting frame, the electric motor has two output ends, the two output ends are fixedly connected to the two lead screws respectively, and the limiting frames are threadedly connected with the lead screws.

[0013] Optionally, a reinforcing rod is fixedly connected between the mounting frame and the positioning frame, the reinforcing rod penetrates through the limiting frames, and the limiting frames are slidingly connected with the reinforcing rod.

[0014] The application also provides a construction method for sliding and positioning of a tunnel reinforcement cage, which is realized based on the tunnel reinforcement cage sliding and positioning device and comprises the following steps.

[0015] Step one: during construction, protective layer cushion blocks are arranged on the bottom stirrup of the reinforcement cage stirrup.

[0016] Step two: a bearing mechanism is fixed on the partition wall, an electric cylinder is started to drive the output end of the electric cylinder to push the straight rack to move, at this time, the second gear meshing with the straight rack rotates and drives the two first gears to rotate simultaneously through the transmission mechanism, and the rotating directions of the two first gears are opposite, so that the fixed clamps are close to or away from each other to fix the installation box on the partition wall.

[0017] Step three: the bearing mechanism is adjusted according to the size of the reinforcement cage main body, the four telescopic rods are started to push the installation frame to move upwards until the bearing rollers contact the reinforcement cage main body, and then the position of the reinforcement cage main body is adjusted to a state convenient for entering the groove track, and the reinforcement cage main body is pushed in.

[0018] Compared with the prior art, the application has the following beneficial effects: during construction, the protective layer cushion blocks are arranged on the bottom stirrup of the reinforcement cage stirrup, so that when the reinforcement cage main body moves longitudinally in the groove track at the top of the partition wall, the friction resistance in the moving and installing process of the reinforcement cage main body is reduced, the worker's high-altitude operation is facilitated, and the risk of high-altitude operation is reduced; the cylindrical protective layer cushion blocks are arranged in the reinforcement cage stirrup in advance, the length of a single reinforcement cage can be increased under low pushing friction resistance, the reinforcement processing cost is reduced, the protective layer cushion blocks are simple to process, the construction efficiency is improved, the construction cost is reduced, the bearing mechanism can bear the reinforcement cage main body, avoids the problem that when the reinforcement cage main body preliminarily enters the groove track, the reinforcement cage main body outside the groove track tilts due to the weight and increases the resistance to forward movement, further facilitates the reinforcement cage main body to enter the groove track, and is beneficial to reducing the installation difficulty of the reinforcement cage main body. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a tunnel cross section of the application;

[0020] Figure 2 It is a structural schematic diagram of a partition wall and a segment connection of the application;

[0021] Figure 3 It is a structural schematic diagram of a reinforcement cage main body of the application;

[0022] Figure 4 It is a sectional structural schematic diagram of a reinforcement cage main body on a tunnel longitudinal section of the application;

[0023] Figure 5Structure diagram of the protective layer cushion block of the present application;

[0024] Figure 6 Structure diagram of the pushing of the reinforcement cage along the longitudinal section of the tunnel of the present application;

[0025] Figure 7 Structure diagram of the bearing mechanism of the present application;

[0026] Figure 8 Structure diagram of the bearing roller of the present application;

[0027] Figure 9 Structure diagram of the installation box of the present application;

[0028] Figure 10 Structure diagram of the connecting mechanism of the present application.

[0029] In the figure: 1, tunnel segment; 2, partition wall; 3, connecting piece; 4, reinforcement cage main body; 41, reinforcement cage main reinforcement; 42, reinforcement cage stirrup; 43, protective layer cushion block; 5, installation box; 6, telescopic rod; 7, installation frame; 8, limiting frame; 9, limiting roller; 10, bearing roller; 11, positioning frame; 12, support frame; 13, fixed clamp; 14, rotating shaft; 15, first gear; 16, second gear; 17, straight rack; 18, electric cylinder; 19, connecting shaft; 20, first pulley; 21, second pulley; 22, transmission belt; 23, guide rod; 24, reinforcing rod; 25, universal wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1 to 10 The tunnel reinforcement cage sliding positioning device provided by the embodiments of the present application comprises a tunnel segment 1, a partition wall 2, a connecting piece 3 and a reinforcement cage main body 4. The partition wall 2 and the tunnel segment 1 are connected by anchor bolts and concrete. The connecting piece 3 is installed on the tunnel segment 1 and located at the top of the partition wall 2. A groove track is formed at the top of the partition wall 2. The reinforcement cage main body 4 comprises a reinforcement cage main reinforcement 41, a reinforcement cage stirrup 42 and a protective layer cushion block 43. The reinforcement cage stirrup 42 is used to hoop the reinforcement cage main reinforcement 41. The protective layer cushion block 43 is sleeved on the position of the reinforcement cage stirrup 42 close to the groove track. The reinforcement cage main body 4 moves on the groove track through the protective layer cushion block 43. Two parallel guide rails are arranged in the tunnel segment 1. The two parallel guide rails have a bearing mechanism for bearing the reinforcement cage entering the groove track.

[0032] Specifically, during construction, by setting the protective layer cushion block 43 on the bottom stirrup of the reinforcement cage stirrup 42, the friction resistance during the movement and installation of the reinforcement cage body 4 in the groove track at the top of the partition wall 2 is reduced, the work of the workers in high places is facilitated, and the risk of working in high places is reduced; by pre-setting the cylindrical protective layer cushion block 43 in the reinforcement cage stirrup 42, the length of a single reinforcement cage can be increased under low push-in friction resistance, the steel processing cost is reduced, and the setting of the supporting mechanism can support the reinforcement cage body 4, avoid the problem that when the reinforcement cage body 4 initially enters the groove track, the reinforcement cage body 4 located outside the groove track moves downward due to the weight, and the reinforcement cage body 4 is inclined to increase the resistance to forward movement, further facilitating the reinforcement cage body 4 to enter the groove track, and facilitating the installation difficulty of the reinforcement cage body 4.

[0033] Further, the protective layer cushion block 43 is provided with at least two, the spacing between all the protective layer cushion blocks 43 is the same, the protective layer cushion block 43 is made of concrete, the protective layer cushion block 43 is a cylinder, and the middle of the protective layer cushion block 43 has a reinforcing bar installation through hole.

[0034] Specifically, the protective layer cushion block 43 is made of reinforced concrete, which is low in price, and there are a large amount of raw materials on the construction site, so it is convenient to obtain materials, which is beneficial to improve the resource utilization rate of the construction site after facilitating the installation of the reinforcement cage body 4, and reduces resource waste.

[0035] Further, the supporting mechanism comprises an installation box 5, the installation box 5 is provided with a connecting mechanism for improving the stability of the installation box 5 during use, four telescopic rods 6 are fixedly connected to the two sides of the installation box 5, a support frame 12 is fixedly connected to the top ends of the four telescopic rods 6, an installation frame 7 is fixedly installed on the top of the support frame 12, a supporting roller 10 is rotatably connected to the middle of the installation frame 7 through a positioning frame 11, two limiting frames 8 are connected to the two sides of the installation frame 7 through an adjusting mechanism, and a limiting roller 9 is rotatably connected to one side of the two limiting frames 8.

[0036] Specifically, when the supporting mechanism is used, the telescopic rod 6 is started to push the installation frame 7 upward until the supporting roller 10 contacts the reinforcement cage body 4 and supports the reinforcement cage body 4, and the position of the reinforcement cage body 4 is adjusted to a state convenient for entering the groove track to improve the stability of the reinforcement cage body 4 entering the groove track, the limiting roller 9 on the installation frame 7 is further used to limit the position of the reinforcement cage body 4, and by cooperating with the adjusting mechanism, different widths of the reinforcement cage body 4 can be limited to meet different construction needs, and the telescopic rod 6 is an electric telescopic rod 6.

[0037] Further, the connecting mechanism comprises two fixing clamps 13, both of which are rotatably connected to the two sides of the mounting box 5 corresponding to the mounting box 5 through rotating shafts 14, both ends of the rotating shafts 14 penetrating out of the mounting box 5, the fixing clamps 13 are provided with a plurality of positioning strips, and the mounting box 5 is provided with a driving mechanism for driving the fixing clamps 13 to rotate.

[0038] Specifically, the stability of the connection between the mounting box 5 and the partition wall 2 can be improved through the arrangement of the connecting mechanism, so as to facilitate the use of the supporting mechanism. The position of the mounting box 5 after movement is fixed through the contact between the positioning strips and the partition wall 2, so as to improve the use effect of the supporting mechanism. When the two fixing clamps 13 contact the partition wall 2, the positioning strips on the fixing clamps 13 can contact the partition wall 2, thereby improving the friction between the fixing clamps 13 and the partition wall 2, reducing manual operation, and improving the convenience of use.

[0039] Further, the driving mechanism comprises two first gears 15, both of which are fixedly connected to the middle part of the two rotating shafts 14. The mounting box 5 is rotatably connected to a second gear 16 through a connecting shaft 19 at a position close to one of the first gears 15. The second gear 16 is engaged with one of the first gears 15. The second gear 16 is drivingly connected to the other first gear 15 through a transmission mechanism. The mounting box 5 is slidingly connected to a straight rack 17 at a position close to the second gear 16. The straight rack 17 is engaged with the second gear 16. The inner cavity of the mounting box 5 is fixedly connected to an electric cylinder 18 at the lower part. The electric cylinder 18 has an output end, which is fixedly connected to one end of the straight rack 17.

[0040] Specifically, by starting the electric cylinder 18, the output end of the electric cylinder 18 pushes the straight rack 17 to move. At this time, the second gear 16 engaged with the straight rack 17 rotates and drives the two first gears 15 to rotate at the same time through the transmission mechanism. The rotating directions of the two first gears 15 are opposite, so as to realize the mutual approach or away of the fixing clamps 13, so as to fix the mounting box 5 on the partition wall 2. The operation is simple and convenient to use.

[0041] Further, the transmission mechanism comprises a first belt pulley 20, which is fixedly connected to the connecting shaft 19. The rotating shaft 14 fixedly connected to the other first gear 15 is fixedly connected to a second belt pulley 21. The first belt pulley 20 and the second belt pulley 21 are drivingly connected through a transmission belt 22.

[0042] Specifically, when the connecting shaft 19 rotates, the first belt pulley 20 and the second belt pulley 21 rotate at the same time through the transmission belt 22, so as to realize the simultaneous rotation of the two fixing clamps 13.

[0043] Further, the other end of the straight rack 17 has a guide hole, and a guide rod 23 is slidably connected in the guide hole. An end of the guide rod 23 away from the straight rack 17 is fixedly connected to a wall of the mounting box 5.

[0044] Specifically, the sliding connection of the guide rod 23 and the guide hole on the straight rack 17 can limit the moving path of the straight rack 17, and improve the stability of the straight rack 17 during movement.

[0045] Further, the adjusting mechanism includes a motor fixedly connected to the middle of the mounting frame 7. Two lead screws are rotatably connected to the two sides of the mounting frame 7. The motor has two output ends, and the two output ends are fixedly connected to the two lead screws, respectively. The limiting frame 8 is threadedly connected to the lead screw.

[0046] Specifically, when the motor is started, the two lead screws rotate at the same time. At this time, the limiting frame 8 threadedly connected to the lead screw rotates synchronously. The screw threads on the two lead screws are opposite to each other, so as to drive the two limiting frames 8 to move towards or away from each other. By adjusting the distance between the two limiting frames 8, the width of the reinforcement cage body 4 can be limited. At the same time, the reinforcement cage body 4 is always in the middle of the mounting frame 7, so as to improve the supporting effect of the supporting roller 10.

[0047] Further, in order to improve the stability of the movement of the limiting frame 8, a reinforcing rod 24 is fixedly connected between the mounting frame 7 and the positioning frame 11. The reinforcing rod 24 penetrates the limiting frame 8, and the limiting frame 8 is slidably connected to the reinforcing rod 24.

[0048] Further, in order to facilitate the movement of the mounting box 5, universal wheels 25 are rotatably connected to the bottom of the mounting box 5.

[0049] The use principle of the application is: in the construction process, by setting the protective layer cushion block 43 on the bottom stirrup of the reinforcement cage stirrup 42, when the reinforcement cage body 4 moves longitudinally in the groove track at the top of the partition wall 2, the friction resistance in the moving and installing process of the reinforcement cage body 4 is reduced, the work of the workers in high altitude is facilitated, the risk of high altitude work is reduced, through the pre-setting of the cylindrical protective layer cushion block 43 in the reinforcement cage stirrup 42, the length of a single section of reinforcement cage can be increased under low push-in friction resistance, the steel processing cost is reduced, the setting of the supporting mechanism can support the reinforcement cage body 4, avoid the problem that when the reinforcement cage body 4 initially enters the groove track, the reinforcement cage body 4 outside the groove track moves downward due to the weight, so that the reinforcement cage body 4 is inclined and the resistance to forward movement is increased, further facilitate the reinforcement cage body 4 to enter the groove track, which is beneficial to reduce the installation difficulty of the reinforcement cage body 4, when the supporting mechanism is installed, the output end of the electric cylinder 18 pushes the straight rack 17 to move by starting the electric cylinder 18, at this time, the second gear 16 meshing with the straight rack 17 rotates and drives the two first gears 15 to rotate at the same time through the transmission mechanism, and the rotating directions of the two first gears 15 are opposite, so as to realize the purpose of the fixed clamps 13 approaching each other to fix the installation box 5 on the partition wall 2, and then the four telescopic rods 6 are pushed to move upward on the installation frame 7 by starting the telescopic rod 6, until the supporting roller 10 contacts with the reinforcement cage body 4 and supports the reinforcement cage body 4, the position of the reinforcement cage body 4 is adjusted to a state convenient for entering the groove track, so as to improve the stability of the reinforcement cage body 4 entering the groove track, the setting of the limiting roller 9 on the installation frame 7 further limits the position of the reinforcement cage body 4, through the cooperation with the adjusting mechanism, the reinforcement cage body 4 of different widths can be limited, different construction requirements can be met.

[0050] Although the embodiments of the application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and principles of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tunnel reinforcement cage sliding positioning device, comprising a tunnel segment (1), a central partition wall (2), a connector (3), and a reinforcement cage body (4), wherein the central partition wall (2) and the tunnel segment (1) are connected by anchor bolts and concrete, the connector (3) is installed on the tunnel segment (1), the connector (3) is located at the top of the central partition wall (2), and the top of the central partition wall (2) is provided with a grooved track, characterized in that: The main body (4) of the steel cage includes the main steel cage reinforcement (41), the steel cage stirrups (42), and the protective layer pad (43). The steel cage stirrups (42) tie the main steel cage reinforcement (41). The protective layer pad (43) is sleeved on the position of the steel cage stirrups (42) near the groove track. The main body (4) of the steel cage moves on the groove track through the protective layer pad (43). Two parallel guide rails are provided in the tunnel segment (1). The two parallel guide rails have a support mechanism to support the steel cage as it enters the groove track. The supporting mechanism includes a mounting box (5), which is provided with a connecting mechanism to improve the stability of the mounting box (5) during use. Four telescopic rods (6) are fixedly connected to both sides of the mounting box (5), and a support frame (12) is fixedly connected to the top of the four telescopic rods (6). A mounting frame (7) is fixedly installed on the top of the support frame (12). A support roller (10) is rotatably connected to the middle of the mounting frame (7) through a positioning frame (11). Two limiting frames (8) are connected to both sides of the mounting frame (7) through an adjustment mechanism. A limiting roller (9) is rotatably connected to the side of the two limiting frames (8) that are close to each other. A caster wheel (25) is rotatably connected to the bottom of the mounting box (5). The connecting mechanism includes two fixing clips (13), both fixing clips (13) are rotatably connected to the corresponding sides of the mounting box (5) via a rotating shaft (14), both ends of the rotating shaft (14) extend through the mounting box (5), the fixing clips (13) have several positioning strips, and the mounting box (5) is provided with a driving mechanism to drive the fixing clips (13) to rotate. The drive mechanism includes two first gears (15), which are fixedly connected to the middle of the two rotating shafts (14) respectively. A second gear (16) is rotatably connected to one of the first gears (15) near the mounting box (5) via a connecting shaft (19). The second gear (16) meshes with one of the first gears (15). The second gear (16) is connected to the other first gear (15) via a transmission mechanism. A rack (17) is slidably connected to the mounting box (5) near the second gear (16). The rack (17) meshes with the second gear (16). An electric cylinder (18) is fixedly connected to the lower part of the inner cavity of the mounting box (5). The electric cylinder (18) has an output end, which is fixedly connected to one end of the rack (17).

2. The tunnel reinforcement cage sliding positioning device according to claim 1, characterized in that: At least two protective layer pads (43) are provided, and the spacing between all the protective layer pads (43) is the same. The protective layer pads (43) are made of concrete and are cylindrical. The protective layer pads (43) have a through hole for installing steel bars in the middle.

3. The tunnel reinforcement cage sliding positioning device according to claim 1, characterized in that: The transmission mechanism includes a first pulley (20), which is fixedly connected to the connecting shaft (19). A second pulley (21) is fixedly connected to a rotating shaft (14) which is fixedly connected to another first gear (15). The first pulley (20) and the second pulley (21) are connected by a transmission belt (22).

4. The tunnel reinforcement cage sliding positioning device according to claim 1, characterized in that: The other end of the rack (17) has a guide hole, and a guide rod (23) is slidably connected in the guide hole. The end of the guide rod (23) away from the rack (17) is fixedly connected to the wall of the mounting box (5).

5. The tunnel reinforcement cage sliding positioning device according to claim 1, characterized in that: The adjustment mechanism includes a motor, which is fixedly connected to the middle of the mounting frame (7). Two lead screws are rotatably connected to both sides of the mounting frame (7). The motor has two output ends, which are fixedly connected to the two lead screws respectively. The limiting frame (8) is threadedly connected to the lead screws.

6. The tunnel reinforcement cage sliding positioning device according to claim 5, characterized in that: A reinforcing rod (24) is fixedly connected between the mounting frame (7) and the positioning frame (11). The reinforcing rod (24) passes through the limiting frame (8), and the limiting frame (8) is slidably connected to the reinforcing rod (24).

7. A construction method for sliding and positioning a tunnel reinforcement cage, based on the tunnel reinforcement cage sliding and positioning device as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: During construction, protective layer spacers (43) are installed on the bottom stirrups of the steel cage stirrups (42). Step 2: Fix the support mechanism on the partition wall (2). By starting the electric cylinder (18), the output end of the electric cylinder (18) pushes the rack (17) to move. At this time, the second gear (16) meshing with the rack (17) rotates and drives the two first gears (15) to rotate simultaneously through the transmission mechanism. The two first gears (15) rotate in opposite directions, so that the fixing clamp (13) moves closer or further away from each other, so as to fix the mounting box (5) on the partition wall (2). Step 3: Adjust the support mechanism according to the size of the main body of the steel cage (4), and push the installation frame (7) up by starting the telescopic rod (6) until the support roller (10) contacts the main body of the steel cage (4). Then adjust the position of the main body of the steel cage (4) to facilitate entering the groove track and push the main body of the steel cage (4) in.

Images