Hollow thin-wall pier wall thickness detection device

Abstract

The utility model discloses a hollow thin-wall pier wall thickness detection device, which relates to the technical field of pier wall thickness detection and comprises a positioning plate, a first clamping plate is vertically welded at one end of the positioning plate, a stepping motor is fixed on the side surface of the first clamping plate through a supporting table, and the output end of the stepping motor is in threaded connection with a movable seat. The moving seat is clamped with the positioning plate in a matched mode, a second clamping plate is vertically welded to one end of the moving seat, and the second clamping plate is attached to the inner wall of the hollow pier. By arranging the first clamping plate and the second clamping plate which are respectively perpendicular to the positioning plate, the distance between the second clamping plate and the first clamping plate can be adjusted through the stepping motor, and the distance between the first clamping plate and the second clamping plate can be measured in cooperation with the laser range finder; the detected pier wall thickness value can be transmitted to the user terminal through the data transmitting antenna, the pier wall thickness after pouring can be detected, meanwhile, the pier wall thickness can be adjusted in the pier construction process, and pier construction errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pier wall thickness detection, in particular to a detection device for the wall thickness of a hollow thin-walled pier. Background Technique

[0002] The external form of the wall of a hollow thin-walled pier is similar to that of a gravity pier, both having good stiffness and strength. Moreover, the hollow thin-walled pier also has the characteristics of light self-weight, large section modulus, and small cross-sectional area, and is widely used in bridge construction. During the process of fabricating and pouring a hollow thin-walled pier, it is necessary to regularly detect the wall thickness of the pier in order to determine the pouring and forming time, plan the project progress, and at the same time provide data support for the load-bearing capacity of the pier. Currently, the thickness of the wall of a bridge hollow thin-walled pier is usually based on the width of the formwork during pouring, and it is difficult to measure after the pier is poured, resulting in a large error between the detected data of the pier wall thickness and the actual data. For this reason, we propose a detection device that can detect the wall thickness of a hollow thin-walled pier when pouring is completed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a detection device for the wall thickness of a hollow thin-walled pier to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A detection device for the wall thickness of a hollow thin-walled pier, including a positioning plate, the bottom of the positioning plate is detachably connected to the top of the hollow pier, one end of the positioning plate is perpendicularly welded with a first clamping plate, the first clamping plate is attached to the outer wall of the hollow pier, a stepping motor is fixed to the side of the first clamping plate through a support platform, the stepping motor is electrically connected to an external power supply, the output end of the stepping motor is threadedly connected with a moving seat. When the stepping motor is started, the output end of the stepping motor is connected with a threaded rod, the threaded rod threadedly penetrates through the moving seat as the stepping motor, the moving seat is adaptively clamped with the positioning plate, one end of the moving seat is perpendicularly welded with a second clamping plate, the second clamping plate is attached to the inner wall of the hollow pier, the top of the first clamping plate is connected with a laser rangefinder, the top of the laser rangefinder is connected with a data transmitting antenna, and a reflector is welded to the top of the second clamping plate. When measuring the wall thickness of the hollow pier, the laser rangefinder emits a ranging light beam, the light beam emitted by the laser rangefinder directly hits the reflector and returns to the laser rangefinder from the reflector. The one-way distance traveled by the optical path measured by the laser rangefinder is the thickness of the wall of the hollow pier. The side of the reflector and the same side of the second clamping plate are in the same vertical plane to ensure the accuracy of measuring the wall thickness of the hollow pier.

[0005] As a further scheme of the utility model: The side of the first clamping plate is adhesively connected with an anti-slip pad, the anti-slip pads are arranged linearly at equal intervals, and an "X"-shaped reinforcing rib is welded at the middle of the first clamping plate. The friction between the first clamping plate and the hollow pier is increased through the anti-slip pad, which is beneficial to preventing the detection device from slipping.

[0006] As a further solution of the utility model: An extended clamping plate structure is installed on the side of the first clamping plate. The extended clamping plate structure includes a telescopic cylinder and an extension plate. A telescopic rod penetrates through the lower end of the telescopic cylinder. A connecting block is welded on the surface of the telescopic rod. The side of the connecting block is welded to the extension plate. The extension plate can lengthen the length of the first clamping plate, increase the contact area with the hollow pier, and improve the reliability of the detection device in use.

[0007] As a further solution of the utility model: A bearing is penetrated and connected at the top end of the extension plate. A vertical line is movably penetrated through the inside of the bearing. A gravity ball is fixed at the lower end of the vertical line. A protective groove is fixed at the lower end of the extension plate. The protective groove can protect the gravity ball.

[0008] As a further solution of the utility model: A counterweight is adhesively connected to the side of the second clamping plate. The counterweight is a long-shaped structure made of rubber material. The counterweight can counterweight the second clamping plate and keep the balance at both ends of the positioning plate.

[0009] As a further solution of the utility model: A hook is welded on the top of the positioning plate. The hooks are symmetric about the bisecting plane of the positioning plate. A circular part is formed at the top of the hook. The hook is convenient for connecting external lifting equipment.

[0010] As a further solution of the utility model: A height adjusting rod is threadedly penetrated through the top of the positioning plate. The number of the height adjusting rods is not less than two. The height adjusting rods can adjust the height at both ends of the positioning plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. By setting the first clamping plate and the second clamping plate perpendicular to the positioning plate respectively, the utility model can adjust the distance between the second clamping plate and the first clamping plate through the stepping motor, and cooperate with the laser rangefinder to measure the distance between the first clamping plate and the second clamping plate. The measured wall thickness value of the pier can be transmitted to the user terminal through the data transmitting antenna, which is beneficial to detecting the wall thickness of the poured pier. At the same time, the wall thickness of the pier can be trimmed during the construction process of the pier, reducing the construction error of the pier.

[0013] 2. The utility model increases the friction between the first clamping plate and the hollow pier through the anti-slip pad, which is beneficial to preventing the detection device from slipping on the hollow pier. By connecting the extension plate at the lower end of the first clamping plate, the length of the first clamping plate can be lengthened through the extension plate, increasing the contact area with the hollow pier and improving the reliability of the detection device in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure diagram of the utility model;

[0015] Figure 2Structural diagram of the left side view of the present utility model;

[0016] Figure 3 Structural diagram of the embodiment of the present utility model.

[0017] In the figure: 1, the first clamping plate; 2, the anti-slip pad; 3, the reinforcing rib; 4, the support platform; 5, the telescopic cylinder; 6, the telescopic rod; 7, the connecting block; 8, the extension plate; 9, the bearing; 10, the vertical line; 11, the gravity ball; 12, the protection groove; 13, the stepping motor; 14, the moving seat; 15, the second clamping plate; 16, the counterweight; 17, the laser rangefinder; 18, the reflector; 19, the hook; 20, the height adjusting rod; 21, the positioning plate; 22, the hollow pier. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a device for detecting the wall thickness of a hollow thin-walled pier, including a positioning plate 21, the bottom of the positioning plate 21 is detachably connected to the top of the hollow pier 22, one end of the positioning plate 21 is vertically welded with a first clamping plate 1, and an extended clamping plate structure is installed on the side of the first clamping plate 1. The extended clamping plate structure includes a telescopic cylinder 5 and an extension plate 8. The lower end of the telescopic cylinder 5 penetrates through a telescopic rod 6, and a connecting block 7 is welded on the surface of the telescopic rod 6. The side of the connecting block 7 is welded to the extension plate 8. The extension plate 8 can lengthen the length of the first clamping plate 1, increase the contact area with the hollow pier 22, and improve the reliability of the use of the detection device. The top end of the extension plate 8 is connected through a bearing 9, and a vertical line 10 is movably penetrated through the inside of the bearing 9. A gravity ball 11 is fixed at the lower end of the vertical line 10, and a protection groove 12 is fixed at the lower end of the extension plate 8. The protection groove 12 can protect the gravity ball 11.

[0020] The first clamping plate 1 is attached to the outer wall of the hollow pier 22. A stepping motor 13 is fixed to the side of the first clamping plate 1 through a support platform 4. The stepping motor 13 is electrically connected to an external power supply. The output end of the stepping motor 13 is threadedly connected with a moving seat 14. When the stepping motor 13 is started, the output end of the stepping motor 13 is connected with a threaded rod. The threaded rod threadedly penetrates through the moving seat 14 as the stepping motor 13. The moving seat 14 is adaptively clamped with the positioning plate 21. One end of the moving seat 14 is vertically welded with a second clamping plate 15. The second clamping plate 15 is attached to the inner wall of the hollow pier 22. The top of the first clamping plate 1 is connected with a laser rangefinder 17. The top of the laser rangefinder 17 is connected with a data transmitting antenna. The top of the second clamping plate 15 is welded with a reflector 18. When measuring the wall thickness of the hollow pier 22, the laser rangefinder 17 emits a ranging light beam. The light beam emitted by the laser rangefinder 17 directly hits the reflector 18 and returns to the laser rangefinder 17 from the reflector 18. The one-way distance traveled by the optical path measured by the laser rangefinder 17 is the thickness of the wall of the hollow pier 22. The side of the reflector 18 and the same side of the second clamping plate 15 are in the same vertical plane, ensuring the accuracy of the wall thickness measurement of the hollow pier 22.

[0021] Preferably, as Figure 2 shown, an anti-slip pad 2 is adhesively connected to the side of the first clamping plate 1. The anti-slip pads 2 are arranged linearly at equal intervals. An "X"-shaped reinforcing rib 3 is welded at the middle of the first clamping plate 1. The friction between the first clamping plate 1 and the hollow pier 22 is increased through the anti-slip pad 2, which is beneficial to preventing the detection device from slipping.

[0022] Preferably, as Figure 1 shown, a counterweight 16 is adhesively connected to the side of the second clamping plate 15. The counterweight 16 is a long-shaped structure made of rubber material. The counterweight 16 can counterweight the second clamping plate 15 to keep the two ends of the positioning plate 21 balanced.

[0023] Preferably, as Figure 1 shown, a hook 19 is welded to the top of the positioning plate 21. The hook 19 is symmetric about the bisecting plane of the positioning plate 21. A circular part is formed at the top of the hook 19. The hook 19 is convenient for connecting an external lifting device.

[0024] Preferably, as Figure 1 shown, a height adjusting rod 20 threadedly penetrates through the top of the positioning plate 21. The number of the height adjusting rods 20 is not less than two. The height adjusting rod 20 is a threaded rod. The height adjusting rod 20 can adjust the heights of the two ends of the positioning plate 21.

[0025] Working principle: When in use, an external crane is used to lift the detection device through the hook 19, and the positioning plate 21 is fixed to the top of the hollow pier 22, so that the detection device can be fixed on the hollow pier 22. Adjust the first clamping plate 1 to fit the outer wall of the hollow pier 22, start the telescopic cylinder 5, and adjust the contact length between the extension plate 8 and the hollow pier 22 through the cooperation of the telescopic cylinder 5 and the telescopic rod 6, which can increase the contact area between the first clamping plate 1 and the side wall of the hollow pier 22. Start the stepping motor 13, and the output end of the stepping motor 13 can adjust the distance between the second clamping plate 15 and the first clamping plate 1 through the moving seat 14, so that the first clamping plate 1 and the second clamping plate 15 are clamped on both sides of the hollow pier 22. Start the laser rangefinder 17, and the laser emitted by the laser rangefinder 17 reaches the reflector 18 and returns. By calculating the distance between the second clamping plate 15 and the first clamping plate 1 through the laser rangefinder 17, the wall thickness of the hollow pier 22 during the construction process can be quickly obtained, which is beneficial to adjusting the gap between the pier wall thickness and the standard thickness during the construction process, thereby reducing the construction error of the pier.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the wall thickness of a hollow thin-walled bridge pier, comprising a positioning plate (21), characterized in that: A first clamping plate (1) is vertically welded to one end of the positioning plate (21); a stepping motor (13) is fixed to the side of the first clamping plate (1) via a support platform (4); a moving seat (14) is threadedly connected to the output end of the stepping motor (13); a second clamping plate (15) is vertically welded to one end of the moving seat (14); a laser rangefinder (17) is connected to the top of the first clamping plate (1); a signal transmitting antenna is installed on the top of the laser rangefinder (17); a reflector (18) is welded to the top of the second clamping plate (15); and the side of the reflector (18) and the same side of the second clamping plate (15) are in the same vertical plane.

2. The device for detecting the wall thickness of a hollow thin-walled bridge pier according to claim 1, characterized in that: The side of the first clamping plate (1) is glued with an anti-skid pad (2), the anti-skid pad (2) is linearly arranged at equal intervals, and a cross "X"-shaped reinforcing rib (3) is welded in the middle of the first clamping plate (1).

3. The hollow thin-wall bridge pier wall thickness detection device according to claim 1, characterized in that: An extension card plate structure is installed on the side of the first card plate (1), and the extension card plate structure comprises a telescopic cylinder (5) and an extension plate (8). A telescopic rod (6) passes through the lower end of the telescopic cylinder (5), a connecting block (7) is welded to the surface of the telescopic rod (6), and a side of the connecting block (7) is welded to the extension plate (8).

4. The device for detecting the wall thickness of a hollow thin-walled bridge pier according to claim 3, characterized in that: The top end of the extension plate (8) is connected to a bearing (9), the interior of the bearing (9) is connected to a vertical line (10), the lower end of the vertical line (10) is fixed with a gravity ball (11), and the lower end of the extension plate (8) is fixed with a protective groove (12).

5. The device for detecting the wall thickness of a hollow thin-walled bridge pier according to claim 1, characterized in that: A counterweight body (16) is glued and connected to the side surface of the second clamping plate (15); the counterweight body (16) is a long structure made of rubber material.

6. The device for detecting the wall thickness of a hollow thin-walled bridge pier according to claim 1, characterized in that: A hook (19) is welded to the top of the positioning plate (21), the hook (19) is symmetrical with respect to the bisecting surface of the positioning plate (21), and a circular portion is formed on the top of the hook (19).

7. The device for detecting the wall thickness of a hollow thin-walled bridge pier according to claim 1, characterized in that: A height adjustment rod (20) is threaded through the top of the positioning plate (21), and the number of the height adjustment rods (20) is not less than two.

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