A connection structure of a surrounding purlin and a construction method

Abstract

The application discloses a connecting structure of surrounding purlin and a construction method, relates to the field of building construction, and comprises surrounding purlins and steel supports. The two ends of each steel support are rotationally connected with adjusting plates. The adjusting plates are rotationally connected with the surrounding purlins. The adjusting plates are slidably connected with sliding blocks along the direction perpendicular to the rotation axis of the adjusting plates. The sliding blocks are rotationally connected with long screw rods. The long screw rods are screwed into the steel supports from the ends away from the sliding blocks. The steel supports are rotationally connected with rotating blocks. The rotation axis of the rotating blocks is arranged along the length direction of the steel supports. The ends of the long screw rods penetrating into the steel supports are slidably connected with the rotating blocks along the length direction of the rotating blocks. The method comprises the following steps: carrying, lifting, adjusting, reinforcing and connecting. The adjusting plates, the long screw rods and the rotating rods are arranged, so that the diagonal braces in the steel supports can be installed between the surrounding purlins with different included angles, the included angle between the steel supports and the surrounding purlins is ensured to be equal, and thus the steel supports have good supporting effect.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to a waler connection structure and construction method. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. The depth of an excavation pit is generally greater than 5 meters. In order to protect construction safety and the stability of the surrounding structure, it is often necessary to build a support structure in the excavation pit. The support structure includes walers, which are set horizontally and abut against the support surface (excavation pit sidewall). Each support surface has multiple walers spaced at intervals along the vertical direction. Walers at the same height are connected end to end to form a polygon. At the same time, in order to further enhance the stability of the support structure, various steel support reinforcements such as diagonal braces and anti-braces are also installed between the walers.

[0003] Regarding the aforementioned technologies, conventional walers are mainly at a 90-degree angle, and steel supports can be connected to them using 45-degree connecting blocks. However, the shapes of foundation pits vary, and the walers may not be perpendicular to each other. A steel support system with a fixed angle cannot achieve good universality, and the connection and arrangement methods of steel supports are limited. Summary of the Invention

[0004] In order to connect steel supports to walers at different angles, this application provides a waler connection structure and construction method.

[0005] Firstly, the waler connection structure provided in this application adopts the following technical solution:

[0006] A waler connection structure includes a waler and a steel support. Adjusting plates are rotatably connected to both ends of the steel support. The adjusting plates rotate to fit against the waler and are used to connect to the waler. A slider is slidably connected to each adjusting plate along a direction perpendicular to its own rotation axis. A long screw is rotatably connected to each slider. The end of the long screw away from the slider is threaded into the steel support. A rotating block is rotatably connected to the steel support, and the rotation axis of the rotating block is set along the length of the steel support. The ends of the two long screws that pass through the steel support are slidably connected to the rotating block along its length.

[0007] By adopting the above technical solution, when connecting the diagonal braces in the steel support, first, one of the adjusting plates is brought into contact with the waler; then, the rotating block is rotated to drive the long screw to rotate, and the long screw extends out of the steel support. At this time, the two adjusting plates rotate synchronously, thereby driving the steel support to rotate against the waler until both adjusting plates are in contact with the waler; then, the adjusting plates are connected to the waler to fix the steel support to the waler. Through the rotation of the two adjusting plates, the waler can be well fitted, providing a stable support function, thus adapting to different waler angles.

[0008] Furthermore, since the two adjusting plates rotate synchronously, the angle between the steel support and the two walers is equal, and the force between the steel support and the two walers should also be equal; thus providing more stable support for the walers.

[0009] Optionally, a reinforcing nut is threaded to the end of the long screw away from the rotating block, and the reinforcing nut rotates to abut against the end face of the steel support.

[0010] By adopting the above technical solution, after the reinforcing nut abuts against the end face of the steel support, the friction between the reinforcing nut and the end face further restricts the rotation of the long screw caused by accidents; thereby strengthening the support of the long screw for the adjusting plate.

[0011] Optionally, each end of the steel support is provided with a secondary support rod, and the end faces of both ends of the steel support along the length direction are slidably connected to a moving block in a direction perpendicular to the rotation axis of the rotating plate. One end of the secondary support rod is rotatably connected to the moving block, and the other end of the secondary support rod is rotatably connected to the adjusting plate. The steel support is also provided with a limiting member for restricting the sliding of the moving block.

[0012] By adopting the above technical solution, when the long screw gradually extends out of the steel support and drives the adjusting plate to rotate, the moving block begins to slide. When the long screw stops extending, the sliding of the moving block is restricted by the limiting component; thereby driving the auxiliary support rod to be fixed. The auxiliary support rod can support the adjusting plate to a certain extent and hinder its rotation; thereby improving the overall support strength of the steel support.

[0013] Optionally, the limiting component includes a spring and a locking block. The locking block is slidably connected to the moving block along the length of the steel support. The end face of the steel support is provided with a ratchet groove for the locking block to be inserted. The spring is used to drive the locking block to be inserted into the ratchet groove.

[0014] By adopting the above technical solution, when the adjusting plate gradually rotates away from the steel support, the moving block begins to slide towards the long screw. During the sliding process, the locking block moves up and down continuously under the action of the ratchet slope. When the adjusting plate is subjected to the pressure of the waler and has a tendency to move towards the steel support, the locking block abuts against the cross-section of the ratchet, thereby hindering the sliding of the moving block. The inability of the moving block to slide drives the auxiliary support rod to hinder the rotation of the adjusting plate and provides support for the adjusting plate.

[0015] Optionally, a sliding block is provided on the end face of the steel support along its own length direction, the sliding block is slidably connected to the steel support along the length direction of the steel support, and the ratchet is provided on the sliding block; the steel support is also provided with a driving member for driving the sliding block to slide.

[0016] By adopting the above technical solution, when the adjusting plate rotates to a predetermined angle, the driving component drives the sliding block to slide so that the locking block can be locked into the ratchet to prevent the sliding of the moving block; when the adjusting plate has not reached the predetermined angle, the driving component drives the sliding block to slide away from the locking block so that the locking block cannot be inserted into the ratchet; thereby preventing the auxiliary support rod from obstructing the rotation of the adjusting plate and allowing the adjusting plate to rotate smoothly.

[0017] Optionally, the driving component includes a connecting pipe, a trigger rod, and a second spring; the connecting pipe is disposed on the steel support, with both ends of the connecting pipe arranged vertically, and the sliding block is provided with a variable rod for inserting into one end of the connecting pipe; the trigger rod is slidably connected to the end of the connecting pipe away from the variable rod; the second spring is used to drive the trigger rod away from the connecting pipe and extend out of the end face of the steel support; hydraulic oil is provided in the connecting pipe; the reinforcing nut abuts against the trigger rod so that it penetrates deep into the connecting pipe and is submerged in the steel support.

[0018] By adopting the above technical solution, when the adjusting plate has not reached the predetermined position, the reinforcing nut is not abutting against the surface of the steel support. At this time, under the action of spring two, the trigger rod moves away from the connecting pipe. Under the action of hydraulic oil pressure, the moving rod extends into the connecting pipe, thereby driving the sliding block to move away from the locking block. At this time, the locking block cannot be inserted into the ratchet groove. When the adjusting plate reaches the predetermined position, the reinforcing nut is rotated to abut against the end face of the steel support. At this time, the trigger rod is also abutted into the connecting pipe by the reinforcing nut. Under the action of hydraulic oil pressure, the moving rod begins to move away from the connecting pipe. At this time, the sliding block slides towards the locking block. Thus, the locking block can be inserted into the ratchet groove under the action of spring two.

[0019] Secondly, the waler connection structure provided in this application adopts the following technical solution:

[0020] A method for constructing a waler includes the following steps:

[0021] Step 1: Moving the steel support to the location where the waler needs to be installed;

[0022] Step 2; Lifting: Raise the steel support to the designed height;

[0023] Step 3: Adjustment. First, align one of the adjustment plates with the waler position, then rotate the rotating block until both adjustment plates are aligned with the waler.

[0024] Step 4: Tighten the reinforcing nut so that it abuts against the end face of the steel support;

[0025] Step 5: Connect the adjusting plate to the waler.

[0026] By adopting the above technical solution, steel supports can be installed onto the walers stably and quickly to form good support; at the same time, it can ensure that the included angle between the steel support and the two walers is equal, so that the force between the steel support and the two walers is equal, thus forming better support.

[0027] Optionally, there is a preparation step before step one, which is to check whether the long screw is slipping and whether the angle between the two adjusting plates and the steel support is consistent.

[0028] By adopting the above technical solutions, it is ensured that each component can achieve its corresponding effect.

[0029] In summary, this application includes the following beneficial technical effects:

[0030] 1. This application, through the setting of adjusting plate, long screw and rotating rod, enables the diagonal brace in steel support to be installed between walers with different included angles, while ensuring that the included angle between steel support and the two walers is equal, thereby ensuring that steel support has a good supporting effect;

[0031] 2. By setting up auxiliary support rods, driving components, and limiting components, this application enables the auxiliary support rods to provide a certain degree of support for the adjusting plate, thereby strengthening the overall support of the steel support. Attached Figure Description

[0032] Figure 1 This is an overall structural diagram of a waler connection structure according to this application;

[0033] Figure 2 This is to highlight Figure 1 Partial structural diagram of the middle auxiliary strut;

[0034] Figure 3 This is to highlight Figure 1 A partial structural cross-sectional view of the middle auxiliary strut.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Waler; 2. Steel support; 3. Adjusting plate; 4. Long screw; 5. Sliding block; 6. Rotating block; 7. Reinforcing nut; 8. Trigger rod; 9. Secondary support rod; 10. Moving block; 11. Locking block; 12. Spring 1; 13. Ratchet; 14. Sliding block; 15. Connecting pipe; 16. Variable rod; 17. Spring 2. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0038] This application discloses a connection structure for a waler 1. (Refer to...) Figure 1 and Figure 2The structure includes a steel support 2 and two walers 1. The steel support 2 is used to support the two walers 1. Adjusting plates 3 are rotatably connected to both ends of the steel support 2. The rotation axis of the adjusting plates 3 is set along the length direction perpendicular to the steel support 2. A slider 5 is slidably connected to the adjusting plates 3 along the direction perpendicular to its own rotation axis. A rotating block 6 is rotatably connected to the steel support 2. The rotation axis of the rotating block 6 is set along the length direction of the steel support 2. One end of a long screw 4 is rotatably connected to the slider 5. The other end of the long screw 4 is threaded through the steel support 2 and slidably connected to the rotating block 6. The long screw 4 can slide on the rotating block 6 along the length direction of the steel support 2. Both long screws 4 are connected to the rotating block 6.

[0039] When the rotating block 6 rotates, the long screw 4 rotates to extend or retract into the steel support 2; when the long screw 4 extends out of the steel support 2, the adjusting plate 3 also rotates; when the two adjusting plates 3 rotate to a certain angle and fit against the steel support 2, the adjusting plate 3 can be installed onto the waler 1, thus completing the connection between the steel support 2 and the waler 1. The preferred connection method is welding. It should be noted that in other embodiments, threaded holes can also be opened on the adjusting plate 3 for connection with high-strength screws. At the same time, since the two adjusting plates 3 rotate simultaneously, the included angle between the steel support 2 and the two walers 1 remains equal, thus ensuring that the supporting effect of the steel support 2 on the two walers 1 is the same, ensuring the supporting function of the steel support 2.

[0040] Meanwhile, in order to further reinforce the long screw 4 and prevent the angle of the adjusting plate 3 from changing due to accidental rotation, a reinforcing nut 7 is threadedly connected to the end of the long screw 4 away from the rotating rod. The reinforcing nut 7 can slide along the length of the long screw 4. When the reinforcing nut 7 abuts against the end face of the steel support 2, if the long screw 4 rotates, it will increase the normal pressure between the reinforcing nut 7 and the steel support 2. The friction between the reinforcing nut 7 and the steel support 2 generated by this normal pressure can hinder the rotation of the steel support 2.

[0041] To further reinforce the long screw 4, auxiliary support rods 9 are provided at both ends of the steel support 2. The moving block 10 is slidably connected to the end face of the steel support 2 along the rotation axis of the vertical adjustment plate 3. One end of the auxiliary support rod 9 is rotatably connected to the moving block 10, and the other end of the auxiliary support rod 9 is rotatably connected to the adjustment plate 3. At the same time, the steel support 2 is also provided with a limiting component to restrict the sliding of the moving block 10.

[0042] In this embodiment, the limiting component includes a spring 12 and a locking block 11. The locking block 11 is slidably connected to the moving block 10 along the length of the steel support 2. The end face of the steel support 2 has a ratchet groove 13 for the locking block 11 to insert into. The spring 12 is used to drive the locking block 11 to insert into the ratchet groove 13. When the adjusting plate 3 gradually moves away from the steel support 2 under the action of the long screw 4, the locking block 11 is affected by the slope of the ratchet groove 13 and the spring 12 and slides back and forth in the vertical direction. When the adjusting plate 3 abuts against the waler 1, the pressure from the waler 1 will give the moving block 10 a tendency to move to the left in the figure. However, at this time, the locking block 11 has already been inserted into the ratchet groove 13 and abuts against the cross-section of the ratchet groove 13 to resist the movement tendency. Therefore, the moving block 10 cannot slide. At this time, the auxiliary support rod 9 can provide a certain support for the adjusting plate 3.

[0043] Reference Figure 2 and Figure 3 In order to ensure that the steel support 2 does not affect the rotation of the adjusting plate 3 when it is not installed on the waler 1, and to facilitate the removal of the steel support 2 from the waler 1, a sliding block 14 is slidably connected to the end face of the steel support 2 along its own length direction. A ratchet 13 is provided on the sliding block 14. The steel support 2 is also provided with a driving component for driving the sliding block 14 to slide.

[0044] In this embodiment, the driving component includes a connecting pipe 15, a trigger rod 8, and a second spring 17. The connecting pipe 15 is mounted on the steel support 2, and both ends of the connecting pipe 15 are arranged vertically and connected to the upper end face of the steel support 2 along its own length. The sliding block 14 is provided with a variable rod 16 for inserting into one end of the connecting pipe 15. The trigger rod 8 is slidably connected to the end of the connecting pipe 15 away from the variable rod 16, and the trigger rod 8 is located on the moving path of the reinforcing nut 7. The second spring 17 is used to drive the trigger rod 8 away from the connecting pipe 15 and out of the end face of the steel support 2. The connecting pipe 15 is filled with hydraulic oil. When the trigger rod 8 is submerged in the end face of the steel support 2, the variable rod 16 is pressured by the hydraulic oil and moves away from the connecting pipe 15. Moving away from the connecting pipe 15 means moving closer to the locking block 11, so that the locking block 11 can be inserted into the ratchet groove 13.

[0045] When the steel support 2 is not installed on the waler 1, the reinforcing nut 7 is not abutting against the end face of the steel support 2. At this time, the trigger rod 8 extends out of the end face of the steel support 2 under the action of the spring 17, and the moving rod 16 is moved away from the locking block 11 by the hydraulic oil pressure. Figure 3In the middle, the sliding block 14 moves downward. At this time, the locking block 11 cannot be inserted into the ratchet groove 13, and the moving block 10 can move normally. The auxiliary support rod 9 will not restrict the rotation of the adjusting plate 3. After the adjusting plate 3 rotates, it abuts against the waler 1. Then, the reinforcing nut 7 is rotated so that the reinforcing nut 7 abuts against the end face of the steel support 2. At this time, the reinforcing nut 7 presses the trigger rod 8 into the connecting pipe 15. The changing rod 16 is moved away from the connecting pipe 15 by the action of hydraulic oil. Figure 3 In the middle, the sliding block 14 moves upward, at which time the locking block 11 can be inserted into the ratchet groove 13, thereby restricting the sliding of the moving block 10, so that the auxiliary support rod 9 supports the adjusting plate 3.

[0046] The implementation principle of the connection structure and construction method of the waler 1 in this application embodiment is as follows: When the steel support 2 needs to be installed, the steel support 2 is first moved to the position to be installed and raised to the predetermined height. Then, the adjusting plate 3 is placed against the waler 1. Then, the rotating block 6 is rotated. The pressure between the adjusting plate 3 and the waler 1 drives the steel support 2 to start rotating until both adjusting plates 3 are against the waler 1. Then, the reinforcing nut 7 is rotated so that it abuts against the end face of the steel support 2. At this time, the trigger rod 8 is pressed into the connecting pipe 15 by the reinforcing nut 7. The moving rod 16, connected to the sliding block 14, moves towards the locking block 11 under the action of hydraulic oil. The locking block 11 is inserted into the ratchet groove 13 under the action of the spring 12. This restricts the sliding of the moving block 10. At this time, the auxiliary support rod 9 can provide support for the adjusting plate 3 to a certain extent.

[0047] This application also discloses a construction method for a waler 1, which includes the following steps:

[0048] Preparation steps: Check whether there is slippage between the long screw 4 and the steel support 2, whether the starting positions of the two adjusting plates 3 are consistent, and whether the hydraulic oil in the connecting pipe 15 is full.

[0049] Step 1: Moving the steel support 2 to the location where the waler 1 needs to be installed;

[0050] Step 2; Lifting: Raise steel support 2 to the designed height;

[0051] Step 3: Adjustment. First, align one of the adjustment plates 3 with the position of the waler 1, then rotate the rotating block 6 until both adjustment plates 3 are aligned with the waler 1.

[0052] Step 4: Tighten the reinforcing nut 7 so that it abuts against the end face of the steel support 2;

[0053] Step 5: Connect the adjusting plate 3 to the waler 1.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waler connection structure, comprising a steel support (2) and two walers (1), characterized in that: Both ends of the steel support (2) are rotatably connected to adjusting plates (3), which rotate to fit the waler (1) and are used to connect the waler (1); the adjusting plates (3) are slidably connected to sliders (5) along the direction perpendicular to their own rotation axis; a rotating block (6) is rotatably connected in the steel support (2), and the rotation axis of the rotating block (6) is set along the length of the steel support (2); a long screw (4) is threaded through the steel support (2); one end of the long screw (4) is rotatably connected to the slider (5), and the other end of the long screw (4) is slidably connected to the rotating block (6); a reinforcing nut (7) is also threadedly connected to the end of the long screw (4) away from the rotating block (6), and the reinforcing nut (7) rotates to abut against the end face of the steel support (2); the steel support (2) Both ends are provided with auxiliary support rods (9). The end face of the steel support (2) near the waler (1) is slidably connected to a moving block (10) along the direction perpendicular to the rotation axis of the adjusting plate (3). One end of the auxiliary support rod (9) is rotatably connected to the moving block (10), and the other end of the auxiliary support rod (9) is rotatably connected to the adjusting plate (3). The steel support (2) is also provided with a limiting member for restricting the sliding of the moving block (10). The limiting member includes a spring (12) and a locking block (11). The locking block (11) is slidably connected to the moving block (10) along the length direction of the steel support (2). The end face of the steel support (2) is provided with a ratchet groove (13) for the locking block (11) to be inserted. The spring (12) is used to drive the locking block (11) to be inserted into the ratchet groove (13).

2. The waler connection structure according to claim 1, characterized in that: The steel support (2) has a sliding block (14) on its end face along its length direction. The sliding block (14) is slidably connected to the steel support (2) along its length direction. The ratchet (13) is provided on the sliding block (14). The steel support (2) is also provided with a driving member for driving the sliding block (14) to slide.

3. The waler connection structure according to claim 2, characterized in that: The driving component includes a connecting pipe (15), a trigger rod (8), and a second spring (17); the connecting pipe (15) is disposed on the steel support (2), and the sliding block (14) is provided with a variable rod (16) for inserting into one end of the connecting pipe (15); the trigger rod (8) is slidably connected to the end of the connecting pipe (15) away from the variable rod (16); the second spring (17) is used to drive the trigger rod (8) away from the connecting pipe (15) and extend out of the end face of the steel support (2); the connecting pipe (15) is provided with hydraulic oil; the reinforcing nut (7) abuts against the trigger rod (8) so that it penetrates into the connecting pipe (15) and is submerged in the steel support (2).

4. A method for constructing a waler, using a connection structure for a waler (1) as described in any one of claims 1 to 3, characterized in that... Includes the following steps Step 1: Transporting the steel support (2) to the location where the waler (1) needs to be installed; Step 2: Lifting, lift the steel support (2) to the designed height; Step 3: Adjustment. First, align one of the adjustment plates (3) with the waler (1), then rotate the rotating block (6) until both adjustment plates (3) are aligned with the waler (1). Step 4: Reinforcement, tighten the reinforcing nut (7) so that the reinforcing nut (7) abuts against the end face of the steel support (2); Step 5: Connect the adjusting plate (3) to the waler (1).

5. The construction method for a waler according to claim 4, characterized in that: Before step one, there is a preparation step, which is to check whether the long screw (4) is slipping and whether the angle between the two adjusting plates (3) and the steel support (2) is consistent.

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