Bridge foundation pile detection auxiliary device
By introducing a semicircular gauge and a plumb line system into the bridge foundation pile testing device, the problems of existing devices being unintuitive and occupying a large space are solved, achieving convenient angle detection and easy transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东交科检测有限公司
- Filing Date
- 2025-07-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing bridge foundation pile testing devices are not intuitive, take up a lot of space, and are inconvenient to transport and store.
A bridge foundation pile testing auxiliary device was designed, which uses a semicircular instrument and a plumb line system. The plumb line keeps the pointer vertical and rotates it to directly read the tilt angle. The device can be folded and stored to reduce its size.
It enables intuitive detection of the tilt angle of bridge foundation piles, simplifies operation, reduces the size of the device, and facilitates transportation and storage.
Smart Images

Figure CN224247034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge inspection technology, and more specifically, to an auxiliary device for bridge foundation pile inspection. Background Technology
[0002] Bridge construction, according to the design, mainly refers to the bridge construction technology, construction organization, construction management, and construction quality. During bridge construction, it is necessary to build pile foundations to support the bridge deck. During the construction of the pile foundations, the position of the pile foundations needs to be corrected multiple times to ensure the correctness of the pile foundation position. In order to prevent the pile foundation angle deviation, an auxiliary detection device is also used. The detection device is also required for subsequent bridge inspections.
[0003] Patent CN214372125U discloses a pile foundation displacement auxiliary detection device. The device uses a detection probe set on a sliding plate to contact the pile foundation surface and determines the pile foundation offset angle by using the detection scale on the surface of different detection probes. The offset angle needs to be calculated, which is not intuitive. In addition, the device occupies a large space and is not convenient for transportation and storage.
[0004] In view of this, we have studied and improved the existing problems and provided an auxiliary device for bridge foundation pile testing. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content
[0005] The purpose of this utility model is to provide an auxiliary device for bridge foundation pile testing, so as to solve the problems and deficiencies mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides an auxiliary device for bridge foundation pile testing, which is accomplished by the following specific technical means:
[0007] An auxiliary device for bridge foundation pile testing includes: a fixed plate, a support rod, a handwheel, a level, a chute, a slide, a support frame, a support sleeve, a sliding rod, a spring, a locking screw, a hinge plate, a testing rod, a pin, a testing head, a semicircular instrument, a rotating sleeve, a plumb line, a plumb bob, and a pointer. The support rod is connected to the fixed plate via a threaded rotation and extends through the four corners of the fixed plate, with a handwheel at its upper end. The level is located on the upper surface of the fixed plate. The chute is located in the middle of the fixed plate. The slide is slidably disposed within the chute, with a support frame fixed near its front end. One end of the support sleeve is hinged to the support frame. One end of the sliding rod is slidably inserted into the support sleeve. The sliding rod has a hinge plate fixed at one end; the spring is set inside the support sleeve, and both ends of the spring are connected to the support sleeve and the sliding rod respectively; the locking screw is connected to the support sleeve by threaded rotation, and the end of the locking screw abuts against the sliding rod; the lower end of the detection rod is hinged to the slide frame by a shaft pin, and the hinge plate is hinged to the detection rod above the shaft pin; the detection head is fixedly set in multiple places on the front side of the detection rod; the semicircular instrument is fixed at the upper end of the detection rod, and the zero scale line of the semicircular instrument is parallel to the axis of the detection rod; the rotating sleeve is rotatably set at the center position of the semicircular instrument; the axes of the suspension line and the pointer are fixed in a straight line on the outer walls of both sides of the rotating sleeve, and the lower end of the suspension line is connected to a plumb line.
[0008] As a further optimization of this technical solution, the hinge plate of the auxiliary device for bridge foundation pile testing of this utility model is an L-shaped plate structure.
[0009] As a further optimization of this technical solution, the support sleeve of the auxiliary device for bridge foundation pile testing of this utility model is a tubular structure with one end closed.
[0010] As a further optimization of this technical solution, the slide of the auxiliary device for bridge pile testing of this utility model is a U-shaped frame structure when viewed from above.
[0011] As a further optimization of this technical solution, the support frame of the auxiliary device for bridge foundation pile testing of this utility model has a T-shaped structure when viewed from the front.
[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0013] 1. The semicircular compass of this invention is fixed at the upper end of the detection rod, and the zero mark of the semicircular compass is parallel to the axis of the detection rod; the rotating sleeve is rotatably set at the center position of the semicircular compass; the axes of the plumb line and the pointer are fixed in a straight line on the outer walls of both sides of the rotating sleeve, and a plumb line is connected to the lower end of the plumb line. During the test, the plumb line remains vertical under the action of gravity, which drives the rotating sleeve and the pointer to rotate relative to the semicircular compass. By reading the relative position of the plumb line or the pointer with the scale of the semicircular compass, the inclination angle of the bridge foundation pile can be intuitively understood. The operation is simple.
[0014] 2. The lower end of the detection rod of this utility model is hinged to the slide by a pivot pin, and the hinge plate is hinged to the detection rod above the pivot pin. The detection rod can be folded down by simply pulling out the pivot pin, which reduces the overall height of the device and the space occupied, making it convenient for transportation and storage.
[0015] 3. This utility model improves the auxiliary device for testing bridge foundation piles, providing a more intuitive understanding of the inclination angle of bridge foundation piles and facilitating transportation and storage, thereby effectively solving the problems and shortcomings of existing technologies and equipment. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded structural diagram of the present invention;
[0019] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0020] Figure 4 This is a cross-sectional structural diagram of the present invention;
[0021] Figure 5 This is a schematic diagram of the folded structure of this utility model.
[0022] In the diagram: 1. Fixed plate; 2. Support rod; 3. Handwheel; 4. Level; 5. Slide rail; 6. Support frame; 7. Support sleeve; 8. Sliding rod; 9. Spring; 10. Locking screw; 11. Hinge plate; 12. Detection rod; 13. Shaft pin; 14. Detection head; 15. Semicircle instrument; 16. Rotating sleeve; 17. Suspension line; 18. Suspension plumb line; 19. Pointer; 20. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for an auxiliary device for bridge foundation pile testing:
[0025] A bridge foundation pile testing auxiliary device includes: a fixed plate 1, a support rod 2, a handwheel 3, a level 4, a slide 5, a carriage 6, a support frame 7, a support sleeve 8, a sliding rod 9, a spring 10, a locking screw 11, a hinge plate 12, a testing rod 13, a shaft pin 14, a testing head 15, a semicircular instrument 16, a rotating sleeve 17, a plumb line 18, a plumb bob 19, and a pointer 20. The support rod 2 is connected to the fixed plate 1 by a threaded rotation and is installed through the four corners of the fixed plate 1. The handwheel 3 is provided at the upper end of the support rod 2. The level 4 is installed on the upper surface of the fixed plate 1. The slide 5 is located in the middle of the fixed plate 1. The carriage 6 is slidably installed in the slide 5, and the support frame 7 is fixed near the front end of the carriage 6. The carriage 6 has a U-shaped frame structure when viewed from above. One end of the support sleeve 8 is hinged to the support frame 7. The support frame 7 has a T-shaped structure when viewed from the front; the support sleeve 8 is a tubular structure closed at one end; one end of the sliding rod 9 is slidably inserted into the support sleeve 8, and the other end of the sliding rod 9 is fixed with a hinge plate 12; the hinge plate 12 has an L-shaped plate structure; the spring 10 is set inside the support sleeve 8, and both ends of the spring 10 are connected to the support sleeve 8 and the sliding rod 9 respectively, and the spring 10 is used to reset the sliding rod 9; the locking screw 11 is connected to the support sleeve 8 by threaded rotation, and the end of the locking screw 11 abuts against the sliding rod 9 to fix the sliding rod 9; the lower end of the detection rod 13 is hinged to the slide 6 through the shaft pin 14, and the hinge plate 12 is hinged to the detection rod 13 above the shaft pin 14; the detection rod 13 can be folded down by simply pulling out the shaft pin 14, which reduces the overall height of the device and the space occupied, making it convenient for transportation and storage.
[0026] The detection head 15 is fixedly installed in multiple places on the front side of the detection rod 13; the semicircular instrument 16 is fixed at the upper end of the detection rod 13, and the zero scale line of the semicircular instrument 16 is parallel to the axis of the detection rod 13; the rotating sleeve 17 is rotatably set at the center position of the semicircular instrument 16; the axes of the suspension line 18 and the pointer 20 are fixed in a straight line on the outer walls on both sides of the rotating sleeve 17, and the lower end of the suspension line 18 is connected to the plumb line 19; during the detection, the plumb line 19 remains vertical under the action of gravity, which drives the rotating sleeve 17 and the pointer 20 to rotate relative to the semicircular instrument 16. By reading the relative position of the suspension line 18 or the pointer 20 with the scale of the semicircular instrument 16, the inclination angle of the bridge foundation pile can be intuitively understood, and the operation is simple.
[0027] Specific implementation steps:
[0028] In use, place the device next to the pile foundation, rotate the handwheel 3 to make the fixing plate 1 horizontal, and observe the level 4 to determine the horizontal state of the fixing plate 1. Move the slide 6. When the detection head 15 contacts the pile foundation surface, the detection rod 13 swings and the sliding rod 9 slides in the support sleeve 8. When all the detection heads 15 are in contact with the pile foundation surface, turn the locking screw 11 to fix the sliding rod 9. Since the plumb line 19 remains vertical under the action of gravity, it drives the rotating sleeve 17 and the pointer 20 to rotate relative to the semicircular instrument 16. The inclination angle of the foundation pile can be read by the relative position of the plumb line 18 and the scale of the semicircular instrument 16. If the upper end of the detection rod 13 tilts outward, the inclination angle of the foundation pile can be read by the relative position of the pointer 20 and the scale of the semicircular instrument 16.
[0029] In summary, this auxiliary device for bridge pile foundation testing uses a semicircular compass fixed to the upper end of a testing rod, with the zero mark of the compass parallel to the axis of the testing rod. A rotating sleeve is rotatably positioned at the center of the semicircular compass. The axes of the plumb line and the pointer are fixed in a straight line on the outer walls of both sides of the rotating sleeve, with a plumb bob connected to the lower end of the plumb line. During testing, the plumb bob remains vertical under gravity, causing the rotating sleeve and pointer to rotate relative to the semicircular compass. By reading the relative position of the plumb line or pointer with the scale of the semicircular compass, the inclination angle of the bridge pile can be intuitively understood, making the operation simple. The lower end of the testing rod is hinged to the slide frame via a pin, and the hinge plate is hinged to the testing rod above the pin. The testing rod can be folded down simply by removing the pin, reducing the overall height and space occupied by the device, facilitating transportation and storage. This invention, through improvements to the auxiliary device for bridge pile foundation testing, offers the advantages of more intuitive understanding of the inclination angle of the bridge pile and easier transportation and storage, effectively solving the problems and shortcomings of existing technologies and equipment.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary device for bridge foundation pile testing, comprising: Fixed plate (1), support rod (2), handwheel (3), level (4), slide (5), slide frame (6), support frame (7), support sleeve (8), sliding rod (9), spring (10), locking screw (11), hinge plate (12), detection rod (13), shaft pin (14), detection head (15), semicircular instrument (16), rotating sleeve (17), plumb line (18), plumb line (19), pointer (20); characterized in that: the support rod (2) is connected to the fixed plate (1) by threaded rotation. The support rod (2) is connected to the four corners of the fixed plate (1), and the upper end of the support rod (2) is provided with a handwheel (3); the level (4) is set on the upper surface of the fixed plate (1); the slide groove (5) is opened in the middle position of the fixed plate (1); the slide frame (6) is slidably set in the slide groove (5), and the slide frame (6) is fixed with a support frame (7) near the front end; one end of the support sleeve (8) is hinged to the support frame (7); one end of the sliding rod (9) is slidably inserted into the support sleeve (8). The sliding rod (9) is connected to the other end of the sliding rod (9) and a hinge plate (12) is fixed thereon; the spring (10) is set inside the support sleeve (8) and the two ends of the spring (10) are respectively connected to the support sleeve (8) and the sliding rod (9); the locking screw (11) is connected to the support sleeve (8) by threaded rotation and the end of the locking screw (11) abuts against the sliding rod (9); the lower end of the detection rod (13) is hinged to the slide (6) by a shaft pin (14) and the hinge plate (12) is above the shaft pin (14) and connected to the detection rod. (13) Hinged; the detection head (15) is fixedly installed in multiple places on the front side of the detection rod (13); the semicircular instrument (16) is fixed at the upper end of the detection rod (13), and the zero scale line of the semicircular instrument (16) is parallel to the axis of the detection rod (13); the rotating sleeve (17) is rotatably set at the center position of the semicircular instrument (16); the axes of the suspension line (18) and the pointer (20) are fixed on the outer walls of both sides of the rotating sleeve (17) in a straight line, and the lower end of the suspension line (18) is connected to a plumb bob (19).
2. The auxiliary device for bridge foundation pile testing according to claim 1, characterized in that: The hinge plate (12) has an L-shaped plate structure.
3. The auxiliary device for bridge foundation pile testing according to claim 1, characterized in that: The support sleeve (8) is a tubular structure with one end closed.
4. The auxiliary device for bridge foundation pile testing according to claim 1, characterized in that: The carriage (6) is a U-shaped frame structure when viewed from above.
5. The auxiliary device for bridge foundation pile testing according to claim 1, characterized in that: The support frame (7) has a T-shaped structure when viewed from the front.