Adjustable open caisson excavation positioning device

By designing a threaded rod and auxiliary plate structure, the device enables rapid adjustment and stable clamping of submerged pipes of different sizes, solving the problem of frequent adjustment of the support plate spacing required by existing devices and improving ease of use and stability.

CN224173362UActive Publication Date: 2026-04-28HENAN ANGANG GRP ENG MANAGEMENT CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ANGANG GRP ENG MANAGEMENT CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing caisson excavation positioning device requires readjustment of the support plate spacing when adjusting the size of the sinking pipe, which is inconvenient to use.

Method used

The structure employs a threaded rod-driven moving plate and auxiliary plate. The position of the moving plate is adjusted by controlling the rotation of the threaded rod with a motor. The auxiliary plate is fitted and clamped to the pipe. Combined with pins and springs to fix the auxiliary plate, it achieves stable clamping of pipes of different sizes.

Benefits of technology

This improves the ease of use and stability of the submerged pipe, avoids the problem of frequent adjustments to the support plate spacing due to size changes, and enhances the fixing effect of the pipe under different sizes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224173362U_ABST
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Abstract

The utility model discloses an adjustable open caisson excavation positioning device which comprises a bottom plate, and positioning pins are fixed to the bottom of the bottom plate at equal angles. A pipeline penetrates through the middle of the bottom plate in a sliding mode, a first motor is fixed to the outer end of the bottom plate, a threaded rod is in key connection with the inner end of the first motor, the threaded rod is connected into the bottom plate through a bearing, a moving plate is in threaded connection with the threaded rod, and a second motor is fixed to the top of the inner end of the moving plate. And the output end of the second motor is connected with the friction belt, and the inner wall of the friction belt is attached to the outer wall of the pipeline to form a limiting mechanism. The adjustable open caisson excavation positioning device is provided with the threaded rod, the threaded rod can be driven to rotate through the first motor, then the threaded rod can drive the moving plate to move, rapid adjustment can be conducted according to pipelines of different sizes, and therefore re-adjustment is avoided, and the use convenience is improved.
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Description

Technical Field

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

[0002] The positioning device for caisson excavation plays multiple roles in caisson construction, including ensuring accurate positioning, improving construction efficiency and safety, guaranteeing project quality, and adapting to complex construction environments. Therefore, the positioning device should be selected and used reasonably in caisson construction to ensure construction quality and safety.

[0003] After the existing caisson excavation and positioning device fixes the pipeline, it needs to be moved manually. However, the pipeline is heavy, which means that multiple people are needed to operate it and move it slowly, which makes it inconvenient to use.

[0004] To address the aforementioned deficiencies, a caisson excavation positioning device with publication number CN218437151U is disclosed. This device uses a positioning mechanism to place the sinking pipe on the ground, installs two support plates on both sides of the sinking pipe, and moves the fixed plate via a first hydraulic rod, causing the transmission belt to clamp the sinking pipe. During sinking, an external control switch is used to start a first motor, which drives the transmission shaft to rotate, thereby causing the transmission belt to move and guide the sinking pipe.

[0005] In actual use of the above-mentioned device, although the movement of the sinking tube can be driven by the transmission belt, thereby improving the convenience of use, the size of the sinking tube will be adjusted as needed. Consequently, when using sinking tubes of different sizes, it is necessary to readjust the spacing of the support plates according to the sinking tube, which makes it relatively inconvenient to use.

[0006] Therefore, we proposed an adjustable caisson excavation positioning device that can effectively solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide an adjustable caisson excavation positioning device to solve the problem mentioned in the background art that the size of the current sinking pipe on the market needs to be adjusted as needed, which leads to the need to readjust the spacing of the support plates according to the sinking pipe when using sinking pipes of different sizes, resulting in inconvenience in use.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustable caisson excavation positioning device, including a base plate, wherein positioning pins are fixed at equal angles on the bottom of the base plate;

[0009] A pipe slides through the middle of the base plate, and a first motor is fixed to the outer end of the base plate. A threaded rod is keyed to the inner end of the first motor, and the threaded rod is connected to the inside of the base plate through a bearing. A moving plate is threaded to the threaded rod, and a second motor is fixed to the top of the inner end of the moving plate. The output end of the second motor is connected to a friction belt. The inner wall of the friction belt is fitted with the outer wall of the pipe to form a limiting mechanism. A clamping plate is fitted to the outer wall of the middle part of the pipe, and the outer end of the clamping plate is fixed to the inner wall of the moving plate.

[0010] Preferably, the threaded rod is provided in two sets, and the threads on the two sets of threaded rods are arranged in opposite directions, and the first motor on the threaded rod is driven in the same opposite direction.

[0011] Preferably, the outer end of the clamping plate is rotatably connected to an auxiliary plate, and the inner end of the auxiliary plate is attached to the outer wall of the pipe to form an auxiliary limiting mechanism.

[0012] Preferably, the top of the auxiliary plate is slidably connected to a pin, and the bottom of the pin is connected to a spring, with the bottom of the spring connected to the inside of the auxiliary plate.

[0013] Preferably, a slider is fixed to the bottom of the pin, and the outer end of the slider extends into the interior of the slide groove to form a sliding mechanism, and the slide groove is opened inside the auxiliary plate.

[0014] Preferably, a locking block is fixed to the top of the pin, and the locking block extends into the interior of the slot to form a locking mechanism.

[0015] Preferably, the card slot is arranged at equal angles with the pin as the center, and the card slot is opened on the clamp plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the adjustable caisson excavation positioning device is easy to use and has high stability. The rotation of the threaded rod can drive the moving plate to move, thereby adapting to pipes of different sizes. Furthermore, the rotation of the auxiliary plate can increase the contact area between the clamping plate and the pipe, thereby improving the stability of pipe clamping. The specific details are as follows:

[0017] (1) A threaded rod is provided, which can be driven to rotate by the first motor, thereby enabling the threaded rod to move the moving plate. This allows for quick adjustment according to pipes of different sizes, thus avoiding readjustment and improving ease of use.

[0018] (2) An auxiliary plate is provided. The rotation of the auxiliary plate will make it fit and clamp against the outer wall of the pipe, thereby increasing the contact area between the clamp and the pipe and thus improving the stability of the pipe.

[0019] (3) A pin is provided, which is slidably connected to the top of the auxiliary plate, and a spring is connected to the bottom of the pin. The bottom of the spring is connected to the inside of the auxiliary plate, so that the pin can fix the position of the auxiliary plate, thereby improving the stability of the auxiliary plate.

[0020] (4) A slider is provided, which is fixed at the bottom of the pin, and the outer end of the slider extends into the interior of the slide groove to form a sliding mechanism. The slide groove is opened inside the auxiliary plate, so that after the slider and the slide groove are engaged, the auxiliary plate and the pin can be stably connected, thereby avoiding the shaking of the auxiliary plate.

[0021] (5) A locking block is provided. The locking block is fixed to the top of the pin and extends into the inside of the slot to form a locking mechanism. This allows the locking block to engage with the slot, thereby improving the stability of the pin and thus fixing the auxiliary plate. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the first motor and the threaded rod of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the second motor and the friction belt of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the auxiliary plate after rotation of this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the slider and the groove of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the clamping plate and the slot of this utility model.

[0028] In the diagram: 1. Base plate; 2. Positioning pin; 3. Pipe; 4. First motor; 5. Threaded rod; 6. Moving plate; 7. Second motor; 8. Friction belt; 9. Clamping plate; 10. Auxiliary plate; 11. Pin; 12. Spring; 13. Slider; 14. Slide groove; 15. Locking block; 16. Locking slot. Detailed Implementation

[0029] 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.

[0030] Example 1: An adjustable caisson excavation positioning device solves the problem that the size of existing sinking pipes needs to be adjusted as required, which in turn leads to the need to readjust the spacing of the support plates when using sinking pipes of different sizes, resulting in inconvenience in use. The use of the threaded rod 5 can improve the ease of use. The following is disclosed:

[0031] A positioning pin 2 is fixed at an equal angle at the bottom of the base plate 1; a pipe 3 slides through the middle of the base plate 1, and a first motor 4 is fixed at the outer end of the base plate 1, and a threaded rod 5 is keyed to the inner end of the first motor 4. The threaded rod 5 is connected to the inside of the base plate 1 through a bearing. A moving plate 6 is threadedly connected to the threaded rod 5, and a second motor 7 is fixed to the top of the inner end of the moving plate 6. The output end of the second motor 7 is connected to a friction belt 8. The inner wall of the friction belt 8 is attached to the outer wall of the pipe 3 to form a limiting mechanism. A clamping plate 9 is attached to the outer wall of the middle part of the pipe 3, and the outer end of the clamping plate 9 is fixed to the inner wall of the moving plate 6. Two sets of threaded rods 5 are provided, and the threads on the two sets of threaded rods 5 are arranged in opposite directions. The first motor 4 on the threaded rod 5 is driven in the same reverse direction.

[0032] refer to Figure 1 and Figure 2 During the installation of pipe 3, base plate 1 is placed on the opening, and positioning pin 2 can be inserted into the ground to fix base plate 1. Pipe 3 is then placed inside base plate 1, and first motor 4 is started to drive threaded rod 5 to rotate. Threaded rod 5 then moves moving plate 6 on base plate 1. The moving plate 6 can be adjusted according to different sizes of pipe 3 by threaded rod 5. The movement of moving plate 6 moves friction belt 8, which fixes the outer wall of pipe 3. Clamping plate 9 also fits against the outer wall of pipe 3 to limit movement. Then, second motor 7 drives friction belt 8 to move, which in turn moves pipe 3, allowing pipe 3 to slowly move into the deep well, thus improving ease of use.

[0033] Example 2: An adjustable caisson excavation positioning device solves the problem of poor positioning stability of the clamping plate 9 for pipes 3 of different sizes in Example 1. The use of the auxiliary plate 10 can improve the positioning stability of the pipes 3. The following is disclosed:

[0034] An auxiliary plate 10 is rotatably connected to the outer end of the clamping plate 9, and the inner end of the auxiliary plate 10 is attached to the outer wall of the pipe 3 to form an auxiliary limiting mechanism.

[0035] refer to Figures 2 to 4By rotating the pin 11, the pin 11 rotates, which in turn drives the slider 13 to rotate. The slider 13 then drives the auxiliary plate 10 to rotate through the slide groove 14. The rotation of the auxiliary plate 10 allows it to fit against the outer wall of the pipe 3. Thus, while the clamping plate 9 clamps the pipe 3, the auxiliary plate 10 also plays an auxiliary clamping role. After the clamping plate 9 limits the pipe 3 of different sizes, the auxiliary plate 10 can improve the stability of the clamping plate 9 in limiting the pipe 3.

[0036] Example 3: An adjustable caisson excavation positioning device solves the problem of poor stability of the auxiliary plate 10 in Example 2. The stability of the auxiliary plate 10 can be improved by using the pin 11. The following is disclosed:

[0037] A pin 11 is slidably connected to the top of the auxiliary plate 10, and a spring 12 is connected to the bottom of the pin 11. The bottom of the spring 12 is connected to the inside of the auxiliary plate 10. A slider 13 is fixed to the bottom of the pin 11, and the outer end of the slider 13 extends into the interior of the slide groove 14 to form a sliding mechanism. The slide groove 14 is opened inside the auxiliary plate 10. A locking block 15 is fixed to the top of the pin 11, and the locking block 15 extends into the interior of the locking slot 16 to form a locking mechanism. The locking slot 16 is set at equal angles with the pin 11 as the center, and the locking slot 16 is opened on the clamping plate 9.

[0038] refer to Figures 3 to 6 By pulling the pin 11, the pin 11 can slide inside the auxiliary plate 10. The movement of the pin 11 will cause the slider 13 to slide inside the slide groove 14. The movement of the pin 11 will stretch the spring 12, so that the spring 12 is stretched and stressed. The movement of the pin 11 will also cause the locking block 15 to disengage from the locking groove 16, thereby facilitating the rotation of the auxiliary plate 10. After rotating to the position, the force of the spring 12 can drive the pin 11 to reset, so that the pin 11 can drive the locking block 15 to insert into the locking groove 16 to form a lock, thereby achieving the purpose of fixing the position of the auxiliary plate 10.

[0039] Working principle: When using this adjustable caisson excavation positioning device, firstly, refer to... Figure 1 and Figure 2 When installing pipe 3, place base plate 1 on the opening, and insert positioning pin 2 into the ground. Positioning pin 2 can then fix base plate 1. Place pipe 3 into the interior of base plate 1, start first motor 4, and drive threaded rod 5 to rotate. This causes moving plate 6 to move, which in turn moves friction belt 8. Friction belt 8 can then fix the outer wall of pipe 3. Then, second motor 7 drives friction belt 8 to move, which in turn moves pipe 3, thus improving ease of use.

[0040] refer to Figures 2 to 4 By rotating the pin 11, the pin 11 rotates, which drives the slider 13 to rotate, which in turn causes the auxiliary plate 10 to rotate and fit against the outer wall of the pipe 3. The auxiliary plate 10 can also play an auxiliary clamping role. After the clamping plate 9 limits the pipe 3 of different sizes, the auxiliary plate 10 can improve the stability of the clamping plate 9 in limiting the pipe 3.

[0041] refer to Figures 3 to 6 By pulling the pin 11, the pin 11 can slide inside the auxiliary plate 10. The movement of the pin 11 will stretch the spring 12, thereby stretching the spring 12 and facilitating the rotation of the auxiliary plate 10. After rotating to the position, the force of the spring 12 can drive the pin 11 to reset, thereby achieving the purpose of fixing the position of the auxiliary plate 10.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable caisson excavation positioning device, comprising a base plate (1), wherein positioning pins (2) are fixed at equal angles at the bottom of the base plate (1); Its features are, A pipe (3) slides through the middle of the base plate (1), and a first motor (4) is fixed to the outer end of the base plate (1). A threaded rod (5) is keyed to the inner end of the first motor (4), and the threaded rod (5) is connected to the inside of the base plate (1) through a bearing. A moving plate (6) is threaded to the threaded rod (5), and a second motor (7) is fixed to the top of the inner end of the moving plate (6). The output end of the second motor (7) is connected to the friction belt (8). The inner wall of the friction belt (8) is attached to the outer wall of the pipe (3) to form a limiting mechanism. A clamping plate (9) is attached to the outer wall of the middle part of the pipe (3), and the outer end of the clamping plate (9) is fixed to the inner wall of the moving plate (6).

2. The adjustable caisson excavation positioning device according to claim 1, characterized in that: The threaded rod (5) is provided in two sets, and the threads on the two sets of threaded rods (5) are arranged in opposite directions. The first motor (4) on the threaded rod (5) is driven in the same opposite direction.

3. The adjustable caisson excavation positioning device according to claim 1, characterized in that: The outer end of the clamp (9) is rotatably connected to an auxiliary plate (10), and the inner end of the auxiliary plate (10) is attached to the outer wall of the pipe (3) to form an auxiliary limiting mechanism.

4. The adjustable caisson excavation positioning device according to claim 3, characterized in that: The top of the auxiliary plate (10) is slidably connected to a pin (11), and the bottom of the pin (11) is connected to a spring (12), and the bottom of the spring (12) is connected to the inside of the auxiliary plate (10).

5. The adjustable caisson excavation positioning device according to claim 4, characterized in that: The bottom of the pin (11) is fixed with a slider (13), and the outer end of the slider (13) extends into the interior of the slide groove (14) to form a sliding mechanism, and the slide groove (14) is opened inside the auxiliary plate (10).

6. The adjustable caisson excavation positioning device according to claim 5, characterized in that: The top of the pin (11) is fixed with a locking block (15), and the locking block (15) extends into the interior of the slot (16) to form a locking mechanism.

7. An adjustable caisson excavation positioning device according to claim 6, characterized in that: The slot (16) is set at equal angles with the pin (11) as the center, and the slot (16) is opened on the clamp (9).

Citation Information

Patent Citations

  • Open caisson excavation positioning device

    CN218437151U