Cantilever supporting structure

Abstract

The utility model relates to the technical field of foundation pit supporting, and discloses a cantilever supporting structure which comprises a supporting cross beam plate, and moving blocks which are symmetrically arranged are arranged in the supporting cross beam plate. A screw rod for driving the two groups of moving blocks to be far away from or close to each other is rotationally mounted on the supporting cross beam plate through a bearing; according to the cantilever supporting structure, the length of a single-section rod body can be designed to be any, the overall length is increased through mutual splicing of the multiple sets of rod bodies, and therefore the distance between the two sets of supporting plates is adjusted, the traditional inner and outer pipe sleeving telescopic design is effectively broken through, and larger-range distance adjustment is achieved; even if the depth of a foundation pit is increased, good adjusting performance can be kept, the using effect of the structure is improved, and therefore the connecting strength between the rod bodies on the two sides is improved, the cantilever supporting effect is improved, and the actual using requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, specifically a cantilever support structure. Background Technology

[0002] Concrete cast-in-place piles are cast-in-place piles made of concrete and used to support deep foundation pits. In order to improve the support of the cast-in-place piles and prevent them from deforming, a cantilever support structure for deep foundation pit concrete cast-in-place piles is needed to support and protect the inner wall of the cast-in-place piles and improve their strength.

[0003] According to the public announcement (CN222120255U), a cantilever support structure for deep foundation pit concrete cast-in-place piles is disclosed. This technology discloses a technical solution that includes "a main structure and an auxiliary support structure, wherein the auxiliary support structure is located below the main structure, and the main structure includes a support plate, a movable groove, and an adjustable support assembly, wherein the movable groove is fixedly installed at the lower end of the support plate, etc. This technology has the technical effect that by installing the main structure, the adjustable support capacity of this utility model is improved. In actual use, the distance between the first support block and the second support block can be easily adjusted according to the needs of use, which is convenient for supporting and protecting cast-in-place piles of different diameters, and improves the usability of the cantilever support structure for deep foundation pit concrete cast-in-place piles."

[0004] While the above design facilitates the support and protection of cast-in-place piles with different diameters and improves the usability of the cantilever support structure for deep foundation pit concrete cast-in-place piles, the adjustment of the first and second support blocks is limited by the support sleeves, which are adjusted by the expansion and contraction of the reinforcing telescopic rods. As the foundation pit becomes deeper, the designed support sleeves become longer, leading to transportation difficulties. Furthermore, the low connection strength between the two sets of reinforcing telescopic rods reduces the effectiveness of the cantilever support. Therefore, we propose a cantilever support structure to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cantilever support structure that solves the problems of limited spacing adjustment range due to the support sleeve rods, the need for longer support sleeve rods as the foundation pit deepens, transportation difficulties, and low connection strength between the two sets of reinforced telescopic rods, which reduces the effectiveness of cantilever support.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cantilever support structure, including a supporting beam plate, wherein the supporting beam plate is provided with symmetrically arranged movable blocks inside;

[0007] A screw that drives two sets of moving blocks to move away from or towards each other is mounted on the supporting crossbeam plate via a bearing.

[0008] Multiple rods are provided below the movable block. A plug is fixed to the top of the rod. A slot 1 that matches the plug is opened at the bottom of the rod. A slot 2 that matches the plug is opened on the lower surface of the movable block.

[0009] Bolt 1 and Bolt 2 are respectively provided on the rod and the movable block;

[0010] One side of the rod is provided with a support plate with an arc structure;

[0011] Support connectors are installed between the two sets of vertically spliced ​​poles.

[0012] Preferably, the screw has threaded teeth on both sides of its surface, and the two sets of threaded teeth have opposite structural designs. The two sets of moving blocks are respectively threaded to the opposite threaded teeth of the screw through threaded holes. The lower surface of the supporting beam plate has a rectangular groove adapted to the moving blocks. The surface of the moving blocks fits against the side wall of the rectangular groove in the supporting beam plate. The moving blocks and the supporting beam plate are slidably connected through this rectangular groove.

[0013] Preferably, the surface of the rod body has multiple sets of equidistant mounting holes, the movable block has a second mounting hole, the insert block has a threaded hole, the bolt passes through one set of mounting holes in the rod body and is screwed into the threaded hole in the insert block for splicing and locking the two sets of rod bodies together, and the bolt passes through the second mounting hole in the movable block and is screwed into the threaded hole in the insert block for connecting and locking the topmost rod body and the movable block.

[0014] Preferably, a connecting rod is fixedly installed on the inner side wall of the support plate, and an arc-shaped plate is fixed to one end of the connecting rod. The arc-shaped plate is provided with multiple sets of locking components, and the arc-shaped plate is fixed to the spliced ​​rod body by the multiple sets of locking components.

[0015] Preferably, the locking component includes a bolt rod and a nut. The surface of the arc-shaped plate has circular holes that match the number of bolt rods. The bolt rods pass through the circular holes in the arc-shaped plate and the mounting holes in the rod body in sequence, and are threadedly connected to the nut located on one side of the rod body.

[0016] Preferably, the surface of the support plate has multiple sets of through holes.

[0017] Preferably, the support connector includes multiple sets of support rods disposed between two sets of vertically spliced ​​rods and threaded rods disposed at both ends of the support rods. The surface of the threaded rod is fixed with an abutment ring. The two ends of the support rod are threadedly connected to the threaded rod through threaded holes. The diameter of the threaded rod is adapted to the inner diameter of the mounting hole of the rod.

[0018] Beneficial effects

[0019] This utility model provides a cantilever support structure. Compared with the prior art, it has the following advantages:

[0020] This cantilever support structure allows for the design of individual rods of arbitrary length. By splicing multiple rods together, the overall length can be extended, thereby adjusting the spacing between the two sets of support plates. This effectively breaks through the traditional inner and outer tube sleeve telescopic design, achieving a wider range of spacing adjustment. Even with increased pit depth, it can maintain good adjustment performance, improving the effectiveness of the structure. This also enhances the connection strength between the rods on both sides, improving the cantilever support effect and meeting actual usage requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural cross-sectional view of the connecting components such as the supporting crossbeam plate and the movable block of this utility model;

[0023] Figure 3 This is a schematic diagram of the support connector structure of this utility model.

[0024] In the diagram: 101, Support beam plate; 102, Screw rod; 103, Moving block; 104, Rod body; 105, Arc plate; 106, Support plate; 107, Through hole; 108, Insert block; 109, Bolt 1; 110, Locking component; 111, Connecting rod; 112, Bolt 2; 2, Support connector; 201, Support rod; 202, Threaded rod; 203, Abutment ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown:

[0027] A cantilever support structure includes a supporting crossbeam plate 101.

[0028] In this implementation plan: The existing device {publication (announcement) number}: CN222120255U discloses a cantilever support structure for deep foundation pit concrete cast-in-place piles. To solve the technical problems existing in this prior art, as disclosed in the background art above, "Although the above design facilitates the support and protection of cast-in-place piles with different hole diameters and improves the usability of the cantilever support structure for deep foundation pit concrete cast-in-place piles, when adjusting the first support block and the second support block, the spacing adjustment range is limited by the support sleeve rod through the expansion and contraction adjustment of the reinforcing telescopic rod. As the foundation pit becomes deeper, the designed support sleeve rod becomes longer, which is inconvenient for transportation. Moreover, the connection strength between the two sets of reinforcing telescopic rods is low, which reduces the cantilever support effect." In combination with the actual use, this problem is obviously a real and difficult problem to solve.

[0029] Furthermore:

[0030] like Figures 1-3 As shown:

[0031] Based on the above: The supporting crossbeam plate 101 is provided with symmetrically arranged movable blocks 103 inside;

[0032] A screw 102 is mounted on the supporting crossbeam plate 101 via a bearing to drive two sets of moving blocks 103 to move away from or towards each other.

[0033] The screw 102 has threaded teeth on both sides of its surface. The two sets of threaded teeth have opposite structural designs. The two sets of moving blocks 103 are threadedly connected to the opposite threaded teeth of the screw 102 through the threaded holes. The lower surface of the supporting beam plate 101 has a rectangular groove that matches the moving block 103. The surface of the moving block 103 fits against the side wall of the rectangular groove in the supporting beam plate 101. The moving block 103 and the supporting beam plate 101 are slidably connected through this rectangular groove.

[0034] Multiple rods 104 are provided below the movable block 103. A plug 108 is fixed at the top of the rod 104. A slot 1 that matches the plug 108 is opened at the bottom of the rod 104. A slot 2 that matches the plug 108 is opened on the lower surface of the movable block 103.

[0035] Bolt 109 and bolt 212 are respectively provided on rod 104 and moving block 103;

[0036] The surface of the rod 104 has multiple sets of equidistant mounting holes. The movable block 103 has a second mounting hole. The insert block 108 has a threaded hole. Bolt 109 passes through one set of mounting holes in the rod 104 and is screwed into the threaded hole in the insert block 108. It is used to connect and lock the two sets of rods 104. Bolt 212 passes through the second mounting hole in the movable block 103 and is screwed into the threaded hole in the insert block 108. It is used to connect and lock the top rod 104 and the movable block 103.

[0037] A support plate 106 with an arc-shaped structure is provided on one side of the rod 104;

[0038] A connecting rod 111 is fixedly installed on the inner side wall of the support plate 106. An arc plate 105 is fixed to one end of the connecting rod 111. Multiple sets of locking parts 110 are provided on the arc plate 105. The arc plate 105 is fixed to the spliced ​​rod body 104 by the multiple sets of locking parts 110. The locking part 110 includes a bolt rod and a nut. The surface of the arc plate 105 is provided with a circular hole that matches the number of bolt rods. The bolt rods pass through the circular hole of the arc plate 105 and the mounting hole of the rod body 104 in sequence, and are threadedly connected to the nut provided on one side of the rod body 104.

[0039] A support connector 2 is provided between two sets of vertically spliced ​​rods 104. The support connector 2 includes multiple sets of support rods 201 provided between the two sets of vertically spliced ​​rods 104 and threaded rods 202 provided at both ends of the support rods 201. The surface of the threaded rods 202 is fixed with abutment rings 203. The two ends of the support rods 201 are threadedly connected to the threaded rods 202 through threaded holes. The diameter of the threaded rods 202 is adapted to the inner diameter of the mounting hole of the rod 104.

[0040] Multiple sets of through holes 107 are formed on the surface of the support plate 106.

[0041] In this embodiment: When using the cantilever support structure, the insert 108 at the top of a set of rods 104 is inserted into the slot 2 at the bottom of the movable block 103. Then, the bolt 2 112 is inserted into the mounting hole 2 in the movable block 103 and screwed into the threaded hole in the insert 108 to lock the connection between the movable block 103 and the insert 108, thereby achieving the installation and locking of a set of rods 104.

[0042] When splicing and locking multiple sets of rods 104, insert the plug 108 at one end of the rod 104 to be spliced ​​into the slot 1 opened at one end of the rod 104 installed on the moving block 103, insert the bolt 109 into the mounting hole 1 opened in the rod 104, and screw it into the threaded hole opened in the plug 108, so as to connect and lock the two sets of rods 104 together.

[0043] When installing the support plate 106, a connecting rod 111 is provided at one end of the support plate 106, and an arc plate 105 is provided at one end of the connecting rod 111. Then, the circular hole on the arc plate 105 is aligned with the mounting hole of the rod body 104. The spacing between adjacent circular holes on the arc plate 105 is adapted to the spacing between the mounting holes of the rod body 104. Then, the bolt rod of the locking member 110 is passed through the circular hole and the mounting hole in sequence, and screwed onto the bolt rod with the nut on one side of the rod body 104 for connecting and locking the support plate 106.

[0044] The surface of the rod body 104 has multiple sets of mounting holes. Multiple sets of support plates 106 can be installed on the rod body 104 through the setting of the locking member 110. Multiple sets of support plates 106 can be flexibly installed according to the internal support position of the cast-in-place pile to improve the support effect and meet the actual use requirements.

[0045] By sequentially splicing multiple sets of rods 104, the spacing between the upper and lower support plates 106 can be adjusted. Through this structure, a single rod 104 can be designed to any length. By splicing multiple sets of rods 104 together, the overall length can be extended, thereby adjusting the spacing between the two sets of support plates 106. This effectively breaks through the traditional inner and outer tube sleeve telescopic design, achieving a wider range of spacing adjustment. Even if the depth of the foundation pit increases, it can maintain good adjustment performance and improve the use effect of this structure.

[0046] This structure is placed inside the cast-in-place pile. By rotating the screw 102, the two sets of opposite threads of the screw 102 are threadedly connected to the two sets of moving blocks 103, thereby driving the two sets of moving blocks 103 to move in opposite directions. Since the surface of the moving block 103 is in contact with the side wall of the sliding groove opened in the supporting crossbeam plate 101, the moving block 103 can be limited, making the moving block 103 more stable during movement.

[0047] The movement of the two sets of moving blocks 103 drives the movement of the two sets of vertically spliced ​​rods 104, which in turn drives the corresponding support plates 106 to move synchronously, so that the support plates 106 support and protect the inner wall.

[0048] As needed for support, bolts are screwed into the inner wall through the through hole 107 to improve the support stability of the rod 104.

[0049] When multiple sets of rods 104 abut against the side wall, the support connector 2 is set between two sets of vertically spliced ​​rods 104. The two sets of threaded rods 202 and the support rods 201 are threadedly connected. By rotating the threaded rods 202 at both ends, the distance between the two ends of the threaded rods 202 can be adjusted. By adjusting the distance between the threaded rods 202, the two sets of threaded rods 202 can be screwed into the mounting holes opened on the rods 104 on both sides. The surface of the threaded rods 202 is provided with abutment rings 203. When the abutment rings 203 contact the surface of the rods 104, the threaded rods 202 are screwed and moved to a limited position. The setting of the support rods 201 and the threaded rods 202 is equivalent to a support connecting rod. Multiple sets of support connecting rods can be installed between the rods 104 on both sides, thereby improving the connection strength between the rods 104 on both sides, improving the cantilever support effect, and meeting the actual use requirements.

[0050] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A cantilever support structure, comprising a supporting crossbeam plate (101), characterized in that, The supporting crossbeam plate (101) is provided with symmetrically arranged movable blocks (103); A screw (102) is mounted on the supporting beam plate (101) via a bearing to drive two sets of moving blocks (103) to move away from or towards each other; Multiple rods (104) are provided below the movable block (103). A plug (108) is fixed at the top of the rod (104). A slot 1 that matches the plug (108) is opened at the bottom of the rod (104). A slot 2 that matches the plug (108) is opened on the lower surface of the movable block (103). Bolt 1 (109) and bolt 2 (112) are respectively provided on the rod (104) and the moving block (103); One side of the rod (104) is provided with a support plate (106) with an arc-shaped structure; A support connector (2) is provided between the two sets of vertically spliced ​​rods (104).

2. The cantilever support structure according to claim 1, characterized in that: The screw (102) has threaded teeth on both sides of its surface. The two sets of threaded teeth have opposite structural designs. The two sets of moving blocks (103) are threadedly connected to the opposite threaded teeth of the screw (102) through threaded holes. The lower surface of the supporting beam plate (101) has a rectangular groove that matches the moving block (103). The surface of the moving block (103) fits against the side wall of the rectangular groove of the supporting beam plate (101). The moving block (103) and the supporting beam plate (101) are slidably connected through this rectangular groove.

3. The cantilever support structure according to claim 2, characterized in that: The surface of the rod (104) has multiple sets of equidistant mounting holes. The movable block (103) has a second mounting hole. The insert block (108) has a threaded hole. The bolt (109) passes through one set of mounting holes of the rod (104) and is screwed into the threaded hole of the insert block (108) for splicing and locking the two sets of rods (104). The bolt (112) passes through the second mounting hole of the movable block (103) and is screwed into the threaded hole of the insert block (108) for connecting and locking the top rod (104) and the movable block (103).

4. The cantilever support structure according to claim 2, characterized in that: A connecting rod (111) is fixedly installed on the inner wall of the support plate (106). An arc plate (105) is fixed at one end of the connecting rod (111). Multiple sets of locking parts (110) are provided on the arc plate (105). The arc plate (105) is fixed to the spliced ​​rod body (104) by the multiple sets of locking parts (110).

5. The cantilever support structure according to claim 4, characterized in that: The locking component (110) includes a bolt rod and a nut. The surface of the arc plate (105) is provided with a circular hole that matches the number of bolt rods. The bolt rods pass through the circular hole of the arc plate (105) and the mounting hole of the rod body (104) in sequence, and are threadedly connected to the nut provided on one side of the rod body (104).

6. The cantilever support structure according to claim 4, characterized in that: The surface of the support plate (106) has multiple sets of through holes (107).

7. The cantilever support structure according to claim 1, characterized in that: The support connector (2) includes multiple sets of support rods (201) disposed between two sets of vertically spliced ​​rods (104) and threaded rods (202) disposed at both ends of the support rods (201). The surface of the threaded rods (202) is fixed with abutment rings (203). The two ends of the support rods (201) are threadedly connected to the threaded rods (202) through threaded holes. The diameter of the threaded rods (202) is adapted to the inner diameter of the mounting hole of the rod (104).

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