Subway engineering side wall steel bar row pitch control device

Abstract

The utility model relates to a subway engineering side wall reinforcing steel bar row pitch control device, and relates to the technical field of engineering construction, the subway engineering side wall reinforcing steel bar row pitch control device comprises a screw rod and two limiting pieces, the two limiting pieces are arranged at the end of the screw rod and detachably connected with the screw rod, the two limiting pieces are oppositely arranged, and the limiting pieces are detachably connected with the screw rod. The arrangement direction of the screws is perpendicular to the arrangement direction of the steel bars, and the two limiting pieces abut against the two opposite rows of steel bars respectively. The limiting pieces are in contact with the outer walls of the steel bars, so that the row spacing of the steel bars can be accurately controlled; the subway engineering side wall reinforcing steel bar row pitch control device can replace traditional positioning reinforcing steel bar row pitch control, solves the problem that the reinforcing steel bar row pitch is difficult to adjust due to the fact that traditional positioning reinforcing steel bars lose the control effect on the row pitch, reduces cost, effectively improves construction efficiency, reduces the loss rate of the positioning reinforcing steel bars, and improves construction quality. And the reject ratio of insufficient side wall steel bar row pitch is reduced, and social and economic benefits are improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering construction, and in particular to a device for controlling the spacing of steel bars in the side walls of subway projects. Background Art

[0002] In recent years, with the vigorous development of urban subway construction, people are paying more and more attention to the safety and stability of subway structures. Among them, the control of the spacing of side wall reinforcements has become a highly valued technical problem. In traditional subway structure design, the spacing of side wall reinforcements is usually controlled by special positioning reinforcements. However, due to the influence of various factors such as construction conditions and processes during subway construction, in many cases, after the concrete pouring of the lower side of the side wall is completed, the spacing of the upper side reinforcements fails to meet the design requirements as expected.

[0003] This situation causes the traditional positioning steel bars to lose their effective control over the spacing, making it difficult to effectively adjust the spacing of the side wall steel bars, which poses a certain risk to the stability and safety of the subway structure. Therefore, it is necessary to improve the side wall steel bar spacing control technology to ensure the safety and reliability of the subway structure. Utility Model Content

[0004] In order to solve the problem that the traditional positioning steel bars lose the control function on the spacing, making it difficult to adjust the steel bar spacing, the present application provides a subway project side wall steel bar spacing control device.

[0005] The present application provides a subway engineering side wall reinforcement spacing control device that adopts the following technical solution:

[0006] A subway engineering side wall steel bar spacing control device comprises a screw rod and two limit members, wherein the two limit members are arranged at the ends of the screw rod and are detachably connected to the screw rod, the two limit members are arranged opposite to each other, the setting direction of the screw rod is perpendicular to the arrangement direction of the steel bars, and the two limit members respectively abut against two opposite rows of the steel bars.

[0007] By adopting the above technical scheme, before use, a screw rod of corresponding length is selected according to the steel bar design spacing in the construction drawing, the screw rod and two limit members are assembled into a device, and it is installed at the position where the steel bar spacing control is required; when in use, the positions of the two rows of steel bars that need to be controlled are adjusted so that the two limit members respectively contact the outer wall of the steel bar away from the opposite row of steel bars, thereby realizing the steel bar spacing control; in this process, the setting direction of the screw rod is perpendicular to the arrangement direction of the steel bars, which is suitable for various steel bar spacing control requirements; through the contact between the limit members and the outer wall of the steel bars, the steel bar spacing can be accurately controlled to ensure the reasonable arrangement of the steel bars during construction, and the limit members and the screw rod are detachably connected, which is convenient for installation, adjustment and disassembly, and improves construction efficiency; thus, it can be applicable to steel bars of different specifications and arrangements, thereby improving the versatility and adaptability of the device.

[0008] In a specific possible implementation mode, the limiting member includes a limiting rod and a connecting rod, the connecting rod is detachably connected to the screw rod, and the limiting rod is in conflict with the steel bar.

[0009] By adopting the above technical solution, when in use, the connecting rod and the screw rod are disassembled and connected, and the positions of the two rows of steel bars are adjusted so that the steel bars collide with the limit rods, and it is ensured that the two limit rods respectively collide with the outer wall of the steel bars on the side away from the opposite row of steel bars; through the interference between the limit rods and the steel bars, the spacing of the steel bars can be controlled to ensure the construction quality; and the connecting rod and the screw rod are detachably connected, making the adjustment and installation process more flexible and convenient.

[0010] In a specific possible implementation mode, the limiting rod extends to both ends, and the limiting rod conflicts with at least two of the steel bars.

[0011] By adopting the above technical solution, the limit rod is extended to both ends so as to interfere with at least two steel bars, thereby increasing the contact area between the steel bar spacing control device and the steel bars, thereby enhancing the stability of the device and the steel bars, preventing the steel bars from deflecting or shaking during construction, and ensuring the construction quality.

[0012] In a specific possible implementation mode, the limiting rod is connected to the steel bar by welding.

[0013] By adopting the above technical solution, after the steel bar spacing is adjusted into place, the spacing adjustment device is welded to the steel bar, so that the steel bar and the steel bar spacing control device become a whole, so that the welded steel bar spacing control device can achieve the relative positioning effect of the inner and outer rows of steel bars; and the welding connection can enhance the structural stability of the spacing adjustment device and the steel bar, avoid loosening or falling off during the construction process, and ensure that the side wall steel bars can maintain the required position when pouring concrete, thereby improving the overall stability and bearing capacity of the concrete structure.

[0014] In a specific possible implementation manner, the axis of the limiting rod is perpendicular to the axis of the screw rod, and the axis of the connecting rod is colinear with the axis of the screw rod.

[0015] By adopting the above technical solution and utilizing the above design, it is helpful to reduce the deformation and displacement of the structure of the steel bar spacing control device, ensure that the connecting parts maintain a good stable state during operation, and help improve the reliability of the overall structure; and it has the advantage of easy installation and adjustment, and is suitable for various engineering projects that require connecting parts.

[0016] In a specific embodiment, it further comprises a threaded sleeve, wherein the threaded sleeve threadably connects the connecting rod and the screw rod.

[0017] By adopting the above technical solution, the connecting rod and the screw are connected by the threaded sleeve, so that the screw and the limit member can be detachably connected, and stronger connection performance and stability can be provided, so that the connecting rod and the screw can jointly withstand external forces and torques. Through the threaded connection, the force transmission effect between the connecting rod and the screw is more direct and uniform, and it is also convenient for the assembly and disassembly process.

[0018] In a specific possible implementation scheme, it also includes a clamping assembly, and both of the two limiting rods are provided with the clamping assembly, and the clamping assembly is slidably arranged on the limiting rod, and the clamping assembly clamps and fixes the steel bar.

[0019] By adopting the above technical solution and utilizing the setting of the clamping assembly, the steel bars can be effectively fixed to ensure that they will not move or deform at the required position, which is beneficial to improving the stability and safety of the structure; and the sliding setting of the clamping assembly on the limit rod makes the installation and adjustment process more convenient and flexible, which helps engineering personnel to complete construction tasks quickly and effectively; and by fixing the steel bars with the clamping assembly, there is no need for welding process, which greatly saves time and labor costs, can avoid the thermal impact on the surface of the steel bars during welding, protect the surface quality of the steel bars, and avoid deformation or damage caused by high temperature.

[0020] In a specific possible implementation mode, the clamping assembly includes two sliding seats, the sliding seats pass through the limiting rod and slide on the limiting rod, the sliding seats are provided with clamping parts, and both of the clamping parts are in contact with the steel bar and clamp the steel bar together.

[0021] By adopting the above technical solution, in actual use, engineering personnel can adjust the position of the sliding seat so that the two clamping parts contact and jointly clamp the steel bars, thereby fixing and adjusting the steel bars and preventing the steel bars from accidentally moving or deforming during construction. The design of the sliding seat can conveniently clamp the clamping parts at the position of the corresponding steel bars, and can make quick adjustments when necessary to adapt to different engineering requirements.

[0022] In a specific possible implementation manner, in the same group of clamping components, one of the clamping parts is provided with a connecting part, and the other clamping part is provided with a groove, and the connecting part is inserted into and abuts against the groove.

[0023] By adopting the above technical solution, a stable connection between the clamping parts can be achieved by inserting the connecting part into the groove and contacting the groove wall of the groove. This design makes it difficult for the clamping part to loosen during use, thereby ensuring reliable fixation of the steel bar.

[0024] In a specific possible implementation manner, it further comprises a screw, and the connecting portion is fixed in the groove by the screw.

[0025] By adopting the above technical solution, the screw fixing method can provide a relatively firm connection, which helps to ensure the stability between the connecting part and the groove, thereby effectively fixing the steel bars and ensuring the fixing effect and safety.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the steel bar spacing control device in Example 1 of the present application.

[0028] Figure 2 It is a schematic diagram for showing the positional relationship between the steel bar spacing control device and the steel bars in the first embodiment.

[0029] Figure 3 It is a structural schematic diagram of the steel bar spacing control device in Example 2 of the present application.

[0030] Figure 4 It is a schematic diagram for showing the positional relationship between the steel bar spacing control device and the steel bars in the second embodiment.

[0031] Figure 5 It is a cross-sectional view used to illustrate the clamping assembly in the second embodiment.

[0032] Explanation of the reference numerals: 1. screw rod; 2. limit member; 21. limit rod; 22. connecting rod; 3. steel bar; 4. threaded sleeve; 5. clamping assembly; 51. sliding seat; 52. clamping part; 6. connecting part; 7. groove; 8. screw. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] Embodiment 1

[0035] Please refer to Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a subway engineering side wall steel bar spacing control device. In this embodiment, the steel bar spacing control device includes but is not limited to the control of the steel bar spacing of the side wall of various types of subway stations under various terrain conditions; the subway engineering side wall steel bar spacing control device of the present application adjusts the side wall steel bar spacing of the unqualified position, and the adjustment can be to increase or decrease the spacing if it is too large or to increase the spacing if it is too small. The error of the steel bar spacing control device for adjusting the side wall steel bar spacing is ±1cm;

[0036] The steel bar spacing control device includes a screw rod 1 and two stoppers 2. In this embodiment, the screw rod 1 may be, but is not limited to, a tension screw rod. In this embodiment, the length of the screw rod 1 is selected according to the design spacing of two rows of steel bars in the actual engineering design blueprint; the setting direction of the screw rod 1 is perpendicular to the arrangement direction of the steel bars 3;

[0037] Two limit members 2 are respectively arranged at the ends of the screw rod 1, and the two limit members 2 are detachably connected to the screw rod 1. The two limit members 2 are arranged opposite to each other, and the two limit members 2 respectively contact the outer side walls of the two opposite rows of steel bars 3; through the contact between the limit members 2 and the outer walls of the steel bars 3, the accurate control of the steel bar spacing can be achieved, ensuring the reasonable arrangement of the steel bars 3 during construction. The limit members 2 are detachably connected to the screw rod 1, which can facilitate installation, adjustment and disassembly, improve construction efficiency, and thus can be applicable to steel bars of different specifications and arrangements, thereby improving the versatility and adaptability of the device;

[0038] In actual use, before use, first select a screw rod 1 of corresponding length according to the steel bar design spacing in the construction drawing, assemble the screw rod 1 and two limit members 2 into a device, and install it at the position where the steel bar spacing control is required; when in use, by adjusting the positions of the two rows of steel bars 3 that need to be spaced apart, the two limit members 2 are respectively in contact with the outer wall of the steel bars 3 away from the opposite row of steel bars 3, thereby achieving the spacing control of the steel bars 3.

[0039] The limiting member 2 includes a limiting rod 21 and a connecting rod 22. In the present embodiment, the connecting rod 22 and the limiting rod 21 may be, but are not limited to, threaded rods. The connecting rod 22 is detachably connected to the screw rod 1, and the limiting rod 21 is in conflict with the steel bar 3. The steel bar spacing control device also includes a threaded sleeve 4, which is threadedly connected to the connecting rod 22 and the screw rod 1. In the present embodiment, the connecting rod 22 and the screw rod 1 are inserted into the threaded sleeve 4 and are threadedly connected to the threaded sleeve 4. The threaded sleeve 4 may be, but is not limited to, a straight threaded sleeve 4 with positive and negative threads.

[0040] The threaded connection between the connecting rod 22 and the screw 1 through the threaded sleeve 4 can realize a detachable connection between the screw 1 and the stopper 2, and can provide stronger connection performance and stability, so that the connecting rod 22 and the screw 1 can jointly withstand external forces and torques. Through the threaded connection, the force transmission effect between the connecting rod 22 and the screw 1 is more direct and uniform, and the assembly and disassembly process is also convenient;

[0041] The axis of the limit rod 21 is perpendicular to the axis of the screw rod 1, and the axis of the connecting rod 22 is colinear with the axis of the screw rod 1. In this embodiment, the limit rod 21 and the connecting rod 22 include but are not limited to being welded to form a T-shaped rod; thereby, it is beneficial to reduce the deformation and displacement of the structure of the side wall steel bar spacing control device of the subway project, ensure that it maintains a stable state during operation, help improve the reliability of the overall structure, and has the advantages of easy installation and adjustment, and is suitable for various engineering projects requiring connectors;

[0042] The limit rod 21 extends to both ends, and the limit rod 21 at least contacts with two steel bars 3; by extending the limit rod 21 to both ends, it can contact with at least two steel bars 3, increasing the contact area between the steel bar spacing control device and the steel bars 3, thereby enhancing the stability of the steel bar spacing control device and the steel bars 3, preventing the steel bars 3 from deflecting or shaking during the construction process, and ensuring the construction quality;

[0043] The limit rod 21 is welded to the steel bar 3; after the steel bar spacing is adjusted to the right position, the spacing adjustment device is welded to the steel bar 3, so that the steel bar 3 and the steel bar spacing control device become a whole, so that the welded steel bar spacing control device can achieve the relative positioning effect of the inner and outer rows of steel bars 3; and the welding connection can enhance the structural stability of the spacing adjustment device and the steel bar 3, avoid loosening or falling off during the construction process, and ensure that the side wall steel bars can maintain the required position when pouring concrete, thereby improving the overall stability and bearing capacity of the concrete structure.

[0044] In this embodiment, the application case of the subway project side wall steel bar spacing control device of the present application in guiding construction is the DS5-TA05 Garden Station project of the Nanjing Metro Ningyang Line civil engineering project; in the actual use of the test section, the on-site implementation changes the positioning steel bar to control the side wall steel bar position and change the steel bar spacing control device to control the side wall steel bar spacing and position, which meets the on-site construction needs, effectively increases the construction efficiency, greatly improves the qualified rate of the side wall steel bar spacing, and improves the economic benefit by 30,000 yuan, achieving the effect of saving construction costs; and the adjustment of the steel bar spacing by the steel bar spacing control device solves the problem that the positioning steel bar cannot correct the unqualified steel bar spacing; the subway project side wall steel bar spacing control device of the present application optimizes the control mode to achieve the purpose of controlling the qualified rate of the subway station side wall steel bar spacing. In the subsequent plate and wall construction process, the project department will continue to use this subway project side wall steel bar spacing control device to improve, so as to improve the construction efficiency of the subway station steel bar 3 project and reduce the unqualified steel bar spacing rate.

[0045] The subway project side wall steel bar spacing control device of the present application avoids the drawbacks of inadequate control of traditional positioned steel bars and inability to adjust the spacing of formed side wall steel bars. While reducing costs, it effectively improves construction efficiency, reduces the loss rate of positioned steel bars, reduces the unqualified rate of side wall steel bar spacing, and improves social and economic benefits.

[0046] The implementation principle of the first embodiment is: the subway engineering side wall steel bar spacing control device of the present application can replace the use of the traditional positioning steel bar spacing control, effectively increase the construction efficiency, save construction costs, reduce the loss rate of the positioning steel bars, and solve the problem that the traditional positioning steel bars lose the control of the spacing, making it difficult to adjust the steel bar spacing;

[0047] In actual use, before use, a screw rod 1 of corresponding length is selected according to the steel bar design spacing in the construction drawing, and the screw rod 1 and two limit members 2 are assembled into a device. Specifically, the connecting rods 22 of the two limit members 2 are respectively connected to the ends of the screw rod 1 through the threaded sleeves 4, and the connecting rod 22 and the screw rod 1 are inserted into the threaded sleeves 4 and threadedly connected with the threaded sleeves 4 to complete the assembly of the steel bar spacing control device for the side wall of the subway project; in this process, the limit members 2 and the screw rod 1 are detachably connected, which is convenient for installation, adjustment and disassembly, and improves construction efficiency, so that it can be applicable to steel bars of different specifications and arrangements, thereby improving the versatility and adaptability of the device;

[0048] When in use, the steel bar spacing control device is installed at the position where the steel bar spacing control is required, and the positions of the two rows of steel bars 3 that need to be controlled are adjusted so that the steel bars 3 collide with the limit rods 21, and the two limit rods 21 are ensured to collide with the outer wall of the steel bars 3 away from the opposite row of steel bars 3, thereby achieving the spacing control of the steel bars 3 and ensuring the construction quality;

[0049] After the steel bar spacing is adjusted into place, the spacing adjustment device is welded to the steel bar 3, that is, the limit rod 21 is welded to the conflicting steel bar 3, so that the steel bar 3 and the spacing control device become a whole, so that the welding spacing control device can achieve the relative positioning effect of the inner and outer rows of steel bars 3; avoid loosening or falling off during the construction process, and ensure that the side wall steel bars can maintain the required position when pouring concrete, thereby improving the overall stability and bearing capacity of the concrete structure.

[0050] Embodiment 2

[0051] Please refer to Figure 3-5 As shown, the difference between this embodiment and the first embodiment is that the steel bar spacing control device further includes a clamping assembly 5, and the two limit rods 21 are both provided with a clamping assembly 5, the clamping assembly 5 is slidably arranged on the limit rod 21, and the clamping assembly 5 clamps and fixes the steel bar 3;

[0052] The clamping assembly 5 can effectively fix the steel bar 3, ensuring that it will not move or deform at the required position, which is beneficial to improving the stability and safety of the structure, and the sliding setting of the clamping assembly 5 on the limit rod 21 makes the installation and adjustment process more convenient and flexible, which helps engineering personnel to complete the construction task quickly and effectively; and the steel bar 3 is fixed by the clamping assembly 5, and there is no need for welding process, which greatly saves time and labor costs, can avoid the thermal impact on the surface of the steel bar 3 during the welding process, protect the surface quality of the steel bar 3, and avoid deformation or damage caused by high temperature.

[0053] The clamping assembly 5 includes two sliding seats 51, the sliding seats 51 pass through the limiting rod 21 and slide on the limiting rod 21, and the sliding seats 51 are provided with clamping parts 52, and the two clamping parts 52 both contact with the steel bar 3 and clamp the steel bar 3 together;

[0054] During actual use, engineers can adjust the position of the sliding seat 51 so that the two clamping parts 52 contact and jointly clamp the steel bar 3, thereby fixing and adjusting the steel bar 3 and preventing the steel bar 3 from accidentally moving or deforming during construction. The design of the sliding seat 51 can conveniently clamp the clamping part 52 at the position of the corresponding steel bar 3, and make quick adjustments when necessary to adapt to different engineering requirements.

[0055] In the same group of clamping components 5, one clamping part 52 is provided with a connecting part 6, and the other clamping part 52 is provided with a groove 7, and the connecting part 6 is inserted into and abuts against the groove 7; by inserting the connecting part 6 into the groove 7 and abutting against the groove wall of the groove 7, a stable connection between the clamping parts 52 can be achieved. Such a design makes it difficult for the clamping parts 52 to loosen during use, thereby ensuring reliable fixation of the steel bar 3;

[0056] The clamping assembly 5 further includes a screw 8, and the connecting portion 6 is fixed in the groove 7 by the screw 8. In this embodiment, the screw 8 passes through the clamping portion 52 and the connecting portion 6 and is threadedly connected with the clamping portion 52 and the connecting portion 6, and the end of the screw 8 abuts against the side wall of the groove 7; the screw 8 fixing method can provide a relatively firm connection, which helps to ensure the stability between the connecting portion 6 and the groove 7, thereby effectively fixing the steel bar 3, ensuring the fixing effect and safety;

[0057] During actual use, engineers can adjust the position of the sliding seat 51 so that the two clamping parts 52 are clamped on both sides of the steel bar 3 and contact the steel bar 3. When the sliding seat 51 drives the clamping part 52 to move, when the connecting part 6 on the clamping part 52 encounters the groove 7, the connecting part 6 is inserted into the groove 7 and contacts the groove 7, so that the two clamping parts 52 can clamp the steel bar 3 together. Then, the screw 8 is used to pass the screw 8 through the clamping part 52 and the connecting part 6 and threadedly connected with the clamping part 52 to achieve a stable connection between the clamping parts 52.

[0058] The implementation principle of the second embodiment is as follows: the present application utilizes the clamping assembly 5 slidably arranged on the limit rod 21, so that the installation and adjustment process is more convenient and flexible, which helps the engineering personnel to complete the construction task quickly and effectively; the clamping assembly 5 can effectively fix the steel bar 3, ensuring that it will not move or deform at the required position, which greatly saves time and labor costs compared with the welding process, and avoids the thermal impact on the surface of the steel bar 3 during the welding process, thereby protecting the surface quality of the steel bar 3;

[0059] In actual use, the engineering personnel can adjust the position of the sliding seat 51 so that the two clamping parts 52 are in contact with the steel bar 3 and jointly clamp the steel bar 3, thereby achieving the fixation and adjustment of the steel bar 3; specifically, the engineering personnel adjust the position of the sliding seat 51 so that the two clamping parts 52 are clamped on both sides of the steel bar 3 and in contact with the steel bar 3. In the process of the sliding seat 51 driving the clamping part 52 to move, when the connecting part 6 on the clamping part 52 encounters the groove 7, the connecting part 6 is inserted into the groove 7 and in contact with the groove 7, thereby achieving the purpose of the two clamping parts 52 jointly clamping the steel bar 3, and then using the screw 8, the screw 8 is passed through the clamping part 52 and the connecting part 6 and is threadedly connected with the clamping part 52 and the connecting part 6 to achieve a stable connection between the clamping parts 52, so that the clamping assembly 5 can be stably connected to the steel bar 3 as a whole, so that the subway project side wall steel bar spacing control device can achieve the relative positioning effect of the inner and outer rows of steel bars 3.

[0060] 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 device for controlling the spacing of steel bars in the side wall of a subway project, characterized in that: The invention comprises a screw rod (1) and two stoppers (2), wherein the two stoppers (2) are arranged at the ends of the screw rod (1) and are detachably connected to the screw rod (1), the two stoppers (2) are arranged opposite to each other, the arrangement direction of the screw rod (1) is perpendicular to the arrangement direction of the steel bars (3), and the two stoppers (2) respectively contact two opposite rows of steel bars (3).

2. The subway engineering side wall reinforcement spacing control device according to claim 1 is characterized by: The limiting member (2) comprises a limiting rod (21) and a connecting rod (22), wherein the connecting rod (22) is detachably connected to the screw rod (1), and the limiting rod (21) is in contact with the steel bar (3).

3. The subway engineering side wall reinforcement spacing control device according to claim 2 is characterized by: The limiting rod (21) extends to both ends, and the limiting rod (21) is in contact with at least two of the steel bars (3).

4. The subway engineering side wall reinforcement spacing control device according to claim 2 is characterized by: The limiting rod (21) is welded to the steel bar (3).

5. The subway engineering side wall reinforcement spacing control device according to claim 2 is characterized by: The axis of the limiting rod (21) is perpendicular to the axis of the screw rod (1), and the axis of the connecting rod (22) is colinear with the axis of the screw rod (1).

6. The subway engineering side wall reinforcement spacing control device according to claim 2 is characterized by: It also comprises a threaded sleeve (4), wherein the threaded sleeve (4) is threadedly connected to the connecting rod (22) and the screw rod (1).

7. The subway engineering side wall reinforcement spacing control device according to claim 2 is characterized by: It also comprises a clamping assembly (5), each of the two limiting rods (21) is provided with the clamping assembly (5), the clamping assembly (5) is slidably arranged on the limiting rod (21), and the clamping assembly (5) clamps and fixes the steel bar (3).

8. The subway engineering side wall reinforcement spacing control device according to claim 7 is characterized by: The clamping assembly (5) comprises two sliding seats (51), the sliding seats (51) passing through the limiting rod (21) and sliding on the limiting rod (21), the sliding seats (51) being provided with a clamping portion (52), the two clamping portions (52) both being in contact with the steel bar (3) and jointly clamping the steel bar (3).

9. The subway engineering side wall reinforcement spacing control device according to claim 8, characterized in that: In the same group of clamping assemblies (5), one of the clamping parts (52) is provided with a connecting part (6), and the other clamping part (52) is provided with a groove (7), and the connecting part (6) is inserted into and abuts against the groove (7).

10. The subway engineering side wall reinforcement spacing control device according to claim 9, characterized in that: It also includes a screw (8), and the connecting portion (6) is fixed in the groove (7) by the screw (8).

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