River channel mass pile cap formwork support structure

Abstract

The utility model relates to the technical field of the construction of the bearing platform template, especially to a river mass bearing platform template support structure, including the cofferdam fender post of bearing platform template one side, be provided with the bottom support, the support cross bar and the support top hat between cofferdam fender post and bearing platform template, the bottom support is fixed in the one end of support cross bar, the sidewall of cofferdam fender post is fixed with the mounting block, is provided with the mounting hole of mounting block insertion of bottom support, is provided with the connecting assembly of bottom support and mounting block fixed of bottom support, the fixed template back rabbet of bearing platform template, the one side swing joint of support top hat has screw rod, the one end screw connection of screw rod and support cross bar away from bottom support, support top hat supports template back rabbet, and the support vertical rod and support vertical rod are connected on support cross bar. The utility model has reduced the quantity of measure reinforcement, need not use the tension bolt to fix the template, reduces the construction cost.

Description

Technical Field

[0001] This utility model relates to the technical field of pier formwork erection, and in particular to a support structure for large-volume pier formwork in river channels. Background Technology

[0002] Currently, the support system for foundation pit pier formwork mostly adopts steel pipe coupler scaffolding support plus tie rods for fixation. As the volume of the foundation pit continues to increase, when using tie rods for construction, the slenderness ratio of the tie rods increases. In order to ensure the safety and stability of the formwork, it is necessary to reduce the spacing of the tie rods and increase the number of tie bolts, which increases the construction cost. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a large-volume pier formwork support structure for river channels.

[0004] This utility model provides a large-volume pier formwork support structure for river channels, which adopts the following technical solution:

[0005] A support structure for a large-volume river pier formwork includes a cofferdam retaining pile located on one side of the pier formwork. A bottom support, a support crossbar, and a support top support are provided between the cofferdam retaining pile and the pier formwork. The bottom support is fixed to one end of the support crossbar. An installation block is fixed on the side wall of the cofferdam retaining pile. The bottom support has installation holes for inserting the installation block. A connecting component for fixing the bottom support and the installation block is provided on the bottom support. A formwork back rib is fixed on the pier formwork. A threaded rod is rotatably connected to one side of the support top support. The threaded rod is threaded to the end of the support crossbar away from the bottom support. The support top support supports the formwork back rib. A support longitudinal rod and a support vertical rod are connected to the support crossbar.

[0006] Optionally, a bearing is provided on the side of the support top near the threaded rod, with the inner ring of the bearing fixed to the threaded rod and the outer ring of the bearing fixed to the support top.

[0007] Optionally, the connecting assembly includes a connecting block, a connecting rod, and a first spring. The connecting block is welded and fixed to the base. A receiving hole is formed on the side of the connecting block near the base. The first spring is located in the receiving hole, and an abutment plate is provided in the receiving hole. One end of the connecting rod is fixed to the abutment plate. A first connecting hole is formed on the side wall of the base, and a second connecting hole is formed on the side wall of the mounting block. The connecting rod passes through the first connecting hole and is inserted into the second connecting hole. A pull rod is fixed to the side of the abutment plate away from the connecting rod. The end of the pull rod away from the abutment plate extends out of the connecting block. The first spring is sleeved with the pull rod and is fixed between the abutment plate and the wall of the receiving hole.

[0008] Optionally, the connecting component includes a slide rod, the mounting block is a cylindrical block, the mounting hole is a circular hole, and a spiral groove is formed on the wall of the circular hole, allowing the slide rod to slide along the groove.

[0009] Optionally, the slide bar is provided with a mounting groove, and a second spring and a limiting rod are provided in the mounting groove. One end of the limiting rod is located in the mounting groove, and the other end of the limiting rod extends out of the receiving groove. A limiting hole is opened on the side wall of the base, and the limiting hole is aligned with the end of the slide groove. When the limiting rod moves to the end of the slide groove with the slide bar, under the action of the second spring, the end of the limiting rod away from the spring extends out from the limiting hole.

[0010] Compared with the prior art, the present invention has the following technical effects:

[0011] This invention utilizes the overall rigidity of the cofferdam to fix the foundation formwork using scaffolding pipes and supporting top supports, reducing the amount of reinforcing steel bars required and eliminating the need for tie bolts to fix the formwork, thus lowering construction costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0013] Figure 2 This is a schematic diagram of the supporting crossbar of Embodiment 1 of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the base and mounting block in Embodiment 1 of this utility model;

[0015] Figure 4 This is a schematic diagram of the connecting component in Embodiment 1 of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the mounting block and the limiting rod in Embodiment 2 of this utility model;

[0017] Figure 6 This is a schematic diagram of the connecting component in Embodiment 2 of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Cofferdam retaining pile; 11. Mounting block; 2. Bottom support; 21. Mounting hole; 3. Support horizontal bar; 31. Support longitudinal bar; 32. Support vertical bar; 33. Cross fastener; 4. Support top support; 41. Threaded rod; 42. Pulling block; 43. Bearing; 5. Template back rib; 6. Connecting assembly; 61. Connecting block; 611. Receiving hole; 62. Connecting rod; 621. First connecting hole; 622. Second connecting hole; 63. First spring; 64. Abutment plate; 65. Tie rod; 66. Sliding rod; 67. Sliding groove; 661. Mounting groove; 662. Second spring; 663. Limiting rod; 664. Limiting hole; 7. Foundation template. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 The present invention will be described in further detail below.

[0020] Embodiment 1 of this utility model

[0021] Reference Figures 1-4 This utility model discloses a support structure for a large-volume river pier formwork, including a cofferdam retaining pile 1 located on one side of the pier formwork 7. A bottom support 2, a support horizontal bar 3, a support top support 4, and a formwork back rib 5 are provided between the cofferdam retaining pile 1 and the pier formwork 7. A support vertical bar 31 and a support upright bar 32 are connected to the support horizontal bar 3. The bottom of the support upright bar 32 is in contact with the bottom of the foundation pit. The support horizontal bar 3 and the support vertical bar 31 are connected by a cross fastener 33. The support upright bar 32 and the support vertical bar 31 are also connected by a cross fastener 33.

[0022] Multiple support crossbars 3 are installed on the same cofferdam retaining pile 1, and the support crossbars 3 are evenly distributed along the height direction of the cofferdam retaining pile 1. Mounting blocks 11 are fixed to the side wall of the cofferdam retaining pile 1, with each support crossbar 3 corresponding to one mounting block 11. The end of the support crossbar 3 near the mounting block 11 is fixed to the base support 2. The base support 2 has mounting holes 21 on the side near the mounting block 11. When installing the base support 2, the mounting block 11 is inserted into the mounting hole 21. A connecting component 6 is provided on the base support 2, and the base support 2 and the mounting block 11 are connected and fixed through the connecting component 6.

[0023] The connecting assembly 6 includes a connecting block 61, a connecting rod 62, and a first spring 63. The connecting block 61 is welded and fixed to the base 2. A receiving hole 611 is provided on the side of the connecting block 61 near the base 2. The first spring 63 is located in the receiving hole 611. An abutment plate 64 is provided in the receiving hole 611. One end of the connecting rod 62 is fixed to the abutment plate 64. A first connecting hole 621 is provided on the side wall of the base 2, and a second connecting hole 622 is provided on the side wall of the mounting block 11. The connecting rod 62 passes through the first connecting hole 621 and is inserted into the second connecting hole 622. A pull rod 65 is fixed on the side of the abutment plate 64 away from the connecting rod 62. The end of the pull rod 65 away from the abutment plate 64 extends out of the connecting block 61. The first spring 63 is sleeved with the pull rod 65 and is fixed between the abutment plate 64 and the wall of the receiving hole 611.

[0024] When the support crossbar 3 is installed on the cofferdam retaining pile 1, the mounting hole 21 on the bottom support 2 is inserted into the mounting block 11. When the mounting block 11 is inserted into the mounting hole 21, the pull rod 65 is pulled outward so that the connecting rod 62 is placed in the receiving hole 611. After the mounting block 11 is inserted into the mounting hole 21, the second connecting hole 622 is aligned with the first connecting hole 621. Then the pull rod 65 is released. Under the action of the first spring 63, the connecting rod 62 passes through the first connecting hole 621 and is inserted into the second connecting hole 622, thereby fixing the bottom support 2 and the mounting block 11.

[0025] A threaded hole is provided on the side of the support crossbar 3 near the support top support 4. A threaded rod 41 is provided on the side of the support top support 4 near the support crossbar 3. A lever 42 is fixed on the threaded rod 41. A bearing 43 is connected to the support top support 4. The outer ring of the bearing 43 is fixed to the support top support 4, and the inner ring of the bearing 43 is fixed to the threaded rod 41. Rotating the threaded rod 41 can adjust the distance between the support top support 4 and the support crossbar 3. The template back rib 5 is fixed on the foundation template 7. When the support top support 4 supports the template back rib 5, the template back rib 5 is located in the U-shaped groove of the support top support 4.

[0026] The implementation principle of Embodiment 1 of this utility model is as follows: When supporting the foundation formwork 7, the supporting horizontal bar 3 is installed first, the bottom support 2 is connected to the mounting block 11 on the cofferdam retaining pile 1, and then the supporting top support 4 is adjusted so that the supporting top support 4 supports the back rib 5 of the formwork. Then, the supporting longitudinal bar 31 and the supporting vertical bar are installed. This utility model utilizes the overall rigidity of the cofferdam to fix the foundation formwork 7 through the scaffold pipes and the supporting top support 4, reducing the number of reinforcement bars and eliminating the need to use tie bolts to fix the formwork, thus reducing construction costs.

[0027] Embodiment 2 of this utility model

[0028] Reference Figure 5 and Figure 6 The difference from Embodiment 1 lies in the connection method between the base 2 and the mounting block 11. The connecting component 6 includes a sliding rod 66, the mounting block 11 is a cylindrical block, the mounting hole 21 is a circular hole, and a spiral groove 67 is formed on the wall of the circular hole, allowing the sliding rod 66 to slide along the groove 67. When installing the base 2, the mounting hole 21 on the base 2 is aligned with the mounting block 11, and the end of the groove 67 near the mounting block 11 is aligned with the sliding rod 66. When the mounting block 11 is inserted into the mounting hole 21, the support crossbar 3 is rotated, causing the sliding rod 66 to move along the groove 67. After the mounting block 11 is fully inserted into the mounting hole 21, the sliding rod 66 slides to the end of the groove 67.

[0029] The slide rod 66 has a mounting groove 661, in which a second spring 662 and a limiting rod 663 are installed. One end of the limiting rod 663 is located in the mounting groove 661, and the other end extends out of the receiving groove. A limiting hole 664 is provided on the side wall of the base 2, which is aligned with the end of the slide groove 67. When the limiting rod 663 moves to the end of the slide groove 67 with the slide rod 66, under the action of the second spring 662, the end of the limiting rod 663 away from the spring extends out of the limiting hole 664.

[0030] When installing the support crossbar 3, align the mounting hole 21 on the base 2 with the mounting block 11, then press the limiting rod 663 against the second spring 662, placing the limiting rod 663 into the mounting groove 661. Next, insert the mounting block 11 into the mounting hole 21 and rotate the support crossbar 3, causing the sliding rod 66 to slide along the groove 67. When the sliding rod 66 reaches the end of the groove 67, the limiting rod 663 extends from the limiting hole 664, thereby limiting and fixing the base 2. When disassembling the support crossbar 3, press the limiting rod 663 against the second spring 662, placing the limiting rod 663 into the mounting groove 661. Then, rotate the support crossbar 3, causing the sliding rod 66 to slide along the groove 67, thereby separating the mounting block 11 from the base 2.

[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A large-volume pier formwork support structure for river channels, characterized in that: The cofferdam retaining pile (1) is located on one side of the foundation template (7). A bottom support (2), a support crossbar (3) and a support top support (4) are provided between the cofferdam retaining pile (1) and the foundation template (7). The bottom support (2) is fixed to one end of the support crossbar (3). An installation block (11) is fixed on the side wall of the cofferdam retaining pile (1). An installation hole (21) for the installation block (11) is provided on the bottom support (2). A connecting component (6) for fixing the bottom support (2) and the installation block (11) is provided on the bottom support (2). A template back rib (5) is fixed on the foundation template (7). A threaded rod (41) is rotatably connected to one side of the support top support (4). The threaded rod (41) is threadedly connected to the end of the support crossbar (3) away from the bottom support (2). The support top support (4) supports the template back rib (5). A support longitudinal rod (31) and a support upright rod (32) are connected on the support crossbar (3).

2. The river channel large-volume pier formwork support structure according to claim 1, characterized in that: A bearing (43) is provided on the side of the support top support (4) near the threaded rod (41). The inner ring of the bearing (43) is fixed to the threaded rod (41), and the outer ring of the bearing (43) is fixed to the support top support (4).

3. The river channel large-volume pier formwork support structure according to claim 1, characterized in that: The connecting assembly (6) includes a connecting block (61), a connecting rod (62), and a first spring (63). The connecting block (61) is welded and fixed to the base (2). A receiving hole (611) is provided on the side of the connecting block (61) near the base (2). The first spring (63) is located in the receiving hole (611). An abutment plate (64) is provided in the receiving hole (611). One end of the connecting rod (62) is fixed to the abutment plate (64). A first connecting hole (621) is provided on the side wall of the base (2). A second connecting hole (622) is provided on the side wall of the mounting block (11); the connecting rod (62) passes through the first connecting hole (621) and is inserted into the second connecting hole (622); a pull rod (65) is fixed on the side of the abutment plate (64) away from the connecting rod (62), and the end of the pull rod (65) away from the abutment plate (64) extends out of the connecting block (61); the first spring (63) is sleeved with the pull rod (65), and the first spring (63) is fixed between the abutment plate (64) and the hole wall of the receiving hole (611).

4. The river channel large-volume pier formwork support structure according to claim 1, characterized in that: The connecting component (6) includes a slide rod (66), a mounting block (11) is a cylindrical block, a mounting hole (21) is a circular hole, and a spiral groove (67) is provided on the wall of the circular hole, so that the slide rod (66) can slide along the groove (67).

5. The river channel large-volume pier formwork support structure according to claim 4, characterized in that: The slide rod (66) is provided with an installation groove (661), and the installation groove (661) is provided with a second spring (662) and a limiting rod (663). One end of the limiting rod (663) is located in the installation groove (661), and the other end of the limiting rod (663) extends out of the receiving groove. A limiting hole (664) is opened on the side wall of the base (2). The limiting hole (664) is aligned with the end of the slide groove (67). When the limiting rod (663) moves to the end of the slide groove (67) with the slide rod (66), under the action of the second spring (662), the end of the limiting rod (663) away from the spring extends out from the limiting hole (664).

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