Open caisson excavation positioning device

Abstract

The utility model relates to the technical field of open caissons, and discloses an open caisson excavation positioning device which comprises an annular disc. A plurality of groups of fixing pins are arranged on the annular disc; a plurality of brackets which are annularly arranged at equal intervals are fixedly mounted on the annular disc; a square rod slides on the bracket, and an adjusting rod for driving the square rod to move is arranged on the bracket; by means of positioning and guiding operation of mechanical adjustment, the posture of the open caisson can be adjusted in real time, the perpendicularity and stability of the open caisson can be kept, structural potential safety hazards caused by too large deviation are avoided, the safety in the construction process is improved, and the construction efficiency is improved. Deviation in the sinking process of the open caisson can be effectively controlled, the overall quality and stability of the open caisson structure are guaranteed, and therefore the construction quality of the whole project is improved.

Description

Technical Field

[0001] This utility model relates to the field of caisson technology, specifically a caisson excavation and positioning device. Background Technology

[0002] With the acceleration of urbanization in my country, underground space resources are being developed and utilized more and more. Among them, caissons, as a common underground structure, are widely used in subway, tunnel, and basement projects;

[0003] Currently, the lack of precise positioning during caisson excavation makes it easy for deviations to occur, leading to shifts during caisson sinking and making it difficult to maintain the verticality and stability of the caisson, thus affecting construction quality. Therefore, we have proposed a caisson excavation positioning device to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a caisson excavation positioning device, which solves the problem that during the caisson excavation process, the lack of precise positioning of the caisson can easily lead to deviations, causing the caisson to shift during sinking, making it difficult to maintain the verticality and stability of the caisson, and affecting the construction quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a caisson excavation positioning device, comprising an annular disc;

[0006] The annular disk is provided with multiple sets of fixing pins;

[0007] Multiple brackets arranged in a ring at equal intervals are fixedly installed on the annular disk;

[0008] A square rod slides on the bracket, and an adjusting rod is provided on the bracket to drive the square rod to move.

[0009] The other end of the square rod is fixed with a mounting base, and the mounting base is rotatably connected to a guide wheel via a rotating shaft.

[0010] Preferably, the annular disk has a circular hole adapted to the fixing pin, and the fixing pin is located in the circular hole of the annular disk, and the fixing pin is used to fix the annular disk to the ground.

[0011] Preferably, one side of the bracket has a sliding groove adapted to the square rod, and the square rod and the bracket are slidably connected through this sliding groove. The other side of the bracket is threadedly connected to the adjusting rod through a threaded hole. One end of the adjusting rod is rotatably connected to the square rod through a bearing, and the other end of the adjusting rod is fixed with a screw plate.

[0012] Preferably, the rotating disc has a through hole.

[0013] Preferably, a movable block is fixed on the upper surface of the square rod, and a strip groove adapted to the movable block is opened on the top of the bracket. The movable block can slide in the strip groove of the bracket, and a scale line is fixed on the upper surface of the bracket near the strip groove.

[0014] Preferably, the upper surface of the annular disk is fixed with multiple sets of equidistantly arranged lifting rings.

[0015] Beneficial effects

[0016] This utility model provides a positioning device for caisson excavation. Compared with the prior art, it has the following advantages:

[0017] This caisson excavation positioning device, through mechanical adjustment and positioning guidance, can adjust the caisson's posture in real time, maintaining its verticality and stability. This avoids structural safety hazards caused by excessive deviation, improves the safety of the construction process, effectively controls deviations during the caisson sinking process, ensures the overall quality and stability of the caisson structure, and thus improves the overall construction quality of the project. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the square rod position adjustment structure of this utility model.

[0021] In the diagram: 101, annular disc; 102, fixing pin; 103, bracket; 104, square rod; 105, mounting base; 106, guide wheel; 107, adjusting rod; 108, rotating disc; 109, moving block; 110, strip groove; 111, scale line; 112, lifting ring; 113, through hole. Detailed Implementation

[0022] 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.

[0023] like Figure 1-3 As shown:

[0024] A caisson excavation positioning device includes an annular disc 101;

[0025] The annular disk 101 is provided with multiple sets of fixing pins 102. The annular disk 101 has circular holes that are adapted to the fixing pins 102. The fixing pins 102 are located in the circular holes of the annular disk 101 and are used to fix the annular disk 101 to the ground.

[0026] Multiple brackets 103 arranged in a ring at equal intervals are fixedly installed on the annular disk 101;

[0027] A square rod 104 slides on the bracket 103, and an adjusting rod 107 is provided on the bracket 103 to drive the square rod 104 to move.

[0028] The other end of the square rod 104 is fixed with a mounting base 105, and the mounting base 105 is rotatably connected to a guide wheel 106 via a rotating shaft;

[0029] A sliding groove adapted to the square rod 104 is provided on one side of the bracket 103. The square rod 104 and the bracket 103 are slidably connected through this sliding groove. The other side of the bracket 103 is threadedly connected to the adjusting rod 107 through a threaded hole. One end of the adjusting rod 107 is rotatably connected to the square rod 104 through a bearing. The other end of the adjusting rod 107 is fixed with a rotating disc 108.

[0030] A movable block 109 is fixed on the upper surface of the square rod 104. A strip groove 110 adapted to the movable block 109 is opened on the top of the bracket 103. The movable block 109 can slide in the strip groove 110 opened in the bracket 103. A scale line 111 is fixed on the upper surface of the bracket 103 near the strip groove 110.

[0031] In this implementation plan: When using the caisson excavation positioning device, the annular disc 101 is first lifted by hoisting equipment (not shown in the figure) and placed at the designated position;

[0032] Then, the fixing pin 102 passes through the circular hole of the annular disk 101 and is inserted into the soil to fix the annular disk 101 and prevent the annular disk 101 from shifting during the positioning and guiding process.

[0033] The caisson (not shown in the figure) was then lifted by hoisting equipment and aligned with the wellhead, while multiple sets of guide wheels 106 were located on the outside of the caisson;

[0034] Next, by rotating the adjusting rod 107, the square rod 104 is driven to move. The square rod 104 drives the mounting base 105 and the guide wheel 106 to move synchronously until the distance between the two sets of guide wheels 106 is matched with the diameter of the caisson, and then the rotation of the adjusting rod 107 is stopped.

[0035] The annular diameter formed by multiple sets of guide wheels 106 is adapted to the diameter of the caisson, so that the multiple sets of guide wheels 106 can surround the outside of the caisson and play a limiting, positioning and guiding effect.

[0036] When the guide wheel 106 comes into contact with the caisson, the friction generated by the contact between the guide wheel 106 and the caisson can drive the guide wheel 106 to roll, thereby reducing the friction between the guide wheel 106 and the caisson.

[0037] In this scheme, when one side of the movable block 109 is in contact with one end of the strip groove 110, the distance between the corresponding two sets of guide wheels 106 is a set value. Thus, while the adjusting rod 107 is rotated, the square rod 104 is moved. The square rod 104 drives the movable block 109 to slide in the strip groove 110 opened in the bracket 103. At this time, the scale line 111 can be observed to show the displacement distance of the movable block 109. This allows for precise determination of the precise distance between the corresponding two sets of guide wheels 106, enabling precise adjustment to match the diameter of the caisson.

[0038] This solution uses mechanical adjustment and positioning guidance to adjust the caisson's posture in real time, maintaining its verticality and stability. This avoids structural safety hazards caused by excessive deviation, improves the safety of the construction process, effectively controls deviations during the caisson's sinking, and ensures the overall quality and stability of the caisson structure, thereby improving the overall construction quality of the project.

[0039] Furthermore;

[0040] In an optional embodiment, the rotating disc 108 has a through hole 113.

[0041] In this embodiment, a through hole 113 is provided on the rotating disc 108. A rod (not shown in the figure) that is compatible with the diameter of the through hole 113 can be inserted into the through hole 113 of the rotating disc 108. By turning the rod, the rotating disc 108 can be driven to rotate the adjusting rod 107, thereby improving the convenience of rotating the adjusting rod 107.

[0042] Furthermore;

[0043] In an optional embodiment, a plurality of equidistant lifting rings 112 are fixed to the upper surface of the annular disk 101.

[0044] In this embodiment: multiple sets of lifting rings 112 are provided on the annular disk 101, which facilitate the connection between the annular disk 101 and the lifting equipment.

[0045] The working principle and usage process of this utility model are as follows: When using this caisson excavation positioning device, firstly, the annular disc 101 is lifted by a hoisting device (not shown in the figure) and placed at the designated position. Multiple sets of lifting rings 112 are provided on the annular disc 101 to facilitate the connection between the annular disc 101 and the hoisting device. Then, a fixing pin 102 passes through the circular hole of the annular disc 101 and is inserted into the soil to fix the annular disc 101, preventing displacement during the positioning and guiding process. Next, the caisson (not shown in the figure) is lifted by the hoisting device and aligned with the wellhead. Multiple sets of guide wheels 106 are located outside the caisson. Then, by rotating the adjusting rod 107, the square rod 104 is driven. The adjustment rod 107 is moved synchronously by the square rod 104 driving the mounting base 105 and guide wheels 106 until the distance between the corresponding two sets of guide wheels 106 matches the diameter of the caisson, at which point the rotation of the adjustment rod 107 stops. The annular diameter formed by the multiple sets of guide wheels 106 matches the diameter of the caisson, allowing the multiple sets of guide wheels 106 to surround the outside of the caisson, achieving a limiting, positioning, and guiding effect. This scheme, through mechanical adjustment and positioning guidance, can adjust the caisson's posture in real time, maintaining its verticality and stability, avoiding structural safety hazards caused by excessive deviation, improving the safety of the construction process, effectively controlling deviations during the caisson sinking process, ensuring the overall quality and stability of the caisson structure, and thus improving the overall construction quality of the project.

[0046] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A caisson excavation positioning device, characterized in that, Including the annular disk (101); The annular disk (101) is provided with multiple sets of fixing pins (102). Multiple brackets (103) are fixedly installed on the annular disk (101) in a ring-shaped and equidistant arrangement. A square rod (104) slides on the bracket (103), and an adjusting rod (107) is provided on the bracket (103) to drive the square rod (104) to move. The other end of the square rod (104) is fixed with a mounting base (105), and the mounting base (105) is rotatably connected to a guide wheel (106) via a rotating shaft.

2. The caisson excavation positioning device according to claim 1, characterized in that: The annular disk (101) has a circular hole that matches the fixing pin (102). The fixing pin (102) is located in the circular hole of the annular disk (101) and is used to fix the annular disk (101) to the ground.

3. The caisson excavation positioning device according to claim 2, characterized in that: The bracket (103) has a sliding groove on one side that is adapted to the square rod (104). The square rod (104) and the bracket (103) are slidably connected through this sliding groove. The other side of the bracket (103) is threadedly connected to the adjusting rod (107) through a threaded hole. One end of the adjusting rod (107) is rotatably connected to the square rod (104) through a bearing. The other end of the adjusting rod (107) is fixed with a screw plate (108).

4. The caisson excavation positioning device according to claim 3, characterized in that: The rotating disc (108) has a through hole (113).

5. The caisson excavation positioning device according to claim 3, characterized in that: A movable block (109) is fixed on the upper surface of the square rod (104). A strip groove (110) adapted to the movable block (109) is opened on the top of the bracket (103). The movable block (109) can slide in the strip groove (110) opened in the bracket (103). A scale line (111) is fixed on the upper surface of the bracket (103) near the strip groove (110).

6. The caisson excavation positioning device according to claim 1, characterized in that: The upper surface of the annular disk (101) is fixed with multiple sets of equidistantly arranged lifting rings (112).

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