Tunnel construction monitoring, measuring and positioning device
By employing a triangular support design with internal threaded gears and brackets working in tandem, combined with tie rods and spring clamping, the problem of unstable positioning of traditional tunnel construction surveying devices in vibration environments is solved, achieving efficient and accurate measurement support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI JIAOHANG ENG TECH CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional tunnel construction surveying equipment is difficult to maintain stable positioning under interference from blasting vibrations and mechanical operation vibrations, resulting in deviations in measurement data.
The measuring instrument is quickly fixed by using components such as internal thread gears, first gears, brackets, and cylinders working together to form a triangular support structure. Combined with the clamping design of pull rods and springs, this ensures that the measuring instrument can be quickly fixed.
It improves the stability and accuracy of the measuring device in complex construction environments, simplifies the installation process, saves time, and ensures the smooth progress of the measuring work.
Smart Images

Figure CN224262520U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tunnel construction technology, and in particular relates to a tunnel construction monitoring, measurement and positioning device. Background Technology
[0002] Construction monitoring and surveying is a crucial link in ensuring project quality and safety. With the rapid development of transportation infrastructure construction in my country, the scale and complexity of tunnel projects are constantly increasing, placing higher demands on the performance of construction monitoring and surveying positioning devices.
[0003] When traditional tunnel construction surveying equipment encounters interference factors such as blasting vibrations or mechanical operation vibrations, ordinary positioning support structures are unable to withstand these external forces. Under the action of vibration, the position of the surveying equipment is prone to shift, resulting in deviations in the measurement data. Utility Model Content
[0004] To achieve the above objectives, this utility model proposes a tunnel construction monitoring, measurement, and positioning device, which includes a mounting plate. A cylinder is fixedly mounted on the bottom of the mounting plate, and a positioning mechanism is fixedly mounted on the output end of the cylinder. The positioning mechanism includes a mounting rod, which is located at the output end of the cylinder. A first mounting ring is fixedly mounted on the side wall of the mounting rod, and a connecting rod is rotatably mounted on the first mounting ring. A second mounting ring is rotatably mounted on the end of the connecting rod away from the first mounting ring. A fixing rod is fixedly mounted on the bottom of the cylinder, and a connecting plate is fixedly mounted on the bottom of the fixing rod. A first gear is rotatably mounted on the bottom of the connecting plate. A mounting base is fixedly mounted on the bottom of the mounting plate, and a support leg is movably mounted inside the mounting base. A bracket is slidably mounted inside the support leg, and an internally threaded gear is rotatably mounted on the bottom of the support leg.
[0005] In one example, the internally threaded gear is internally threaded with the bracket.
[0006] In one example, the internal threaded gear meshes with the first gear, and the second mounting ring is fixedly mounted on the side wall of the support leg.
[0007] In one example, a pull rod is slidably mounted inside the mounting plate, and a spring is sleeved on the side wall of the pull rod.
[0008] In one example, the spring is fixedly mounted to the mounting plate, and the end of the spring away from the mounting plate is fixedly mounted to the pull rod.
[0009] In one example, a piston rod is fixedly mounted on the side wall of the mounting plate, and a push block is fixedly mounted on the end of the piston rod away from the mounting plate.
[0010] In one example, a measuring device is slidably mounted on the side wall of the mounting plate, and the pull rod is inserted into the measuring device.
[0011] The tunnel construction monitoring, measurement, and positioning device proposed in this utility model can bring the following beneficial effects:
[0012] 1. This utility model, through the coordinated operation of components such as the internal threaded gear, the first gear, the bracket, and the cylinder, can quickly unfold and fix the support leg to form a triangular structure. The triangular structure has good stability and can provide a reliable support foundation for the measuring instrument in the complex construction environment of the tunnel, ensuring that the device will not easily shake or shift during the measurement process, thereby improving the accuracy and reliability of the measurement.
[0013] 2. This utility model utilizes the squeezing force of the push block when the measuring device is inserted into the mounting plate, as well as the clamping force generated by the cooperation of the pull rod and the spring, to quickly and securely clamp the measuring device onto the mounting plate. This design is simple to operate, requiring no additional complicated tools or cumbersome installation procedures, saving installation time and improving construction efficiency. At the same time, it ensures that the measuring device will not loosen during operation, maintaining the smooth progress of measurement work. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the mounting rod structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the first gear structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the spring structure of this utility model.
[0018] The attached figures are labeled as follows:
[0019] 11. Mounting plate; 12. Cylinder; 13. Mounting rod; 14. First mounting ring; 15. Connecting rod; 16. Second mounting ring; 17. Fixing rod; 18. Connecting plate; 19. First gear; 21. Mounting seat; 22. Support leg; 23. Bracket; 24. Internal threaded gear; 25. Pull rod; 26. Spring; 27. Piston rod; 28. Push block; 29. Measuring instrument. Detailed Implementation
[0020] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.
[0021] Example 1
[0022] like Figures 1-4As shown, an embodiment of this utility model proposes a tunnel construction monitoring, measurement, and positioning device, which includes a mounting plate 11. A cylinder 12 is fixedly mounted on the bottom of the mounting plate 11. Rotating an internal thread gear 24 counterclockwise causes the first gear 19 to rotate counterclockwise, causing the bracket 23 to rotate out of the support leg 22. When the cylinder 12 is activated, it drives the mounting rod 13 to move upwards. The mounting rod 13 is fixedly mounted on the output end of the cylinder 12. The mounting rod 13 presses against the bottom of the first gear 19, causing the first gear 19 to stop rotating under pressure. The side wall of the mounting rod 13 is fixed... A first mounting ring 14 is fixedly installed. A mounting rod 13 drives the first mounting ring 14 to move upwards. A connecting rod 15 is rotatably mounted on the first mounting ring 14. The first mounting ring 14 drives the connecting rod 15 to flip from the middle to both sides. A second mounting ring 16 is rotatably mounted on the end of the connecting rod 15 away from the first mounting ring 14. The connecting rod 15 drives the second mounting ring 16 to flip from the middle to both sides. A fixing rod 17 is fixedly mounted on the bottom of the cylinder 12. A connecting plate 18 is fixedly mounted on the bottom of the fixing rod 17. A first gear 19 is rotatably mounted on the bottom of the connecting plate 18. A mounting base 2 is fixedly mounted on the bottom of the mounting plate 11. 1. A support leg 22 is movably mounted inside the mounting base 21. The support leg 22 will flip inside the mounting base 21, opening up to form a triangular structure for quick positioning. A bracket 23 is slidably mounted inside the support leg 22. An internally threaded gear 24 is rotatably mounted at the bottom of the support leg 22. The internally threaded gear 24 is threadedly mounted to the bracket 23 and meshes with the first gear 19. A second mounting ring 16 is fixedly mounted on the side wall of the support leg 22. A pull rod 25 is slidably mounted inside the mounting plate 11. Pulling the pull rods 25 on both sides will cause the spring 26 to be stressed. A spring 26 is sleeved on the side wall of the tension rod 25. The spring 26 is fixedly installed on the mounting plate 11. The end of the spring 26 away from the mounting plate 11 is fixedly installed on the tension rod 25. A piston rod 27 is fixedly installed on the side wall of the mounting plate 11. A push block 28 is fixedly installed on the end of the piston rod 27 away from the mounting plate 11. When the measuring device 29 is inserted into the mounting plate 11, the measuring device 29 will squeeze the push block 28. The push block 28 will compress the piston rod 27. The measuring device 29 is slidably installed on the side wall of the mounting plate 11. The tension rod 25 is inserted into the measuring device 29, thereby quickly snapping the measuring device 29 onto the mounting plate 11.
[0023] Working principle: First, by rotating the internal thread gear 24 counterclockwise, the meshing relationship between the internal thread gear 24 and the first gear 19 drives the first gear 19 to rotate counterclockwise. At the same time, since the internal thread gear 24 and the bracket 23 are threadedly installed, the rotation of the internal thread gear 24 causes the bracket 23 to rotate out of the support leg 22, realizing the extension of the bracket 23. Next, the cylinder 12 is activated, and the output end of the cylinder 12 drives the mounting rod 13 to move from bottom to top. When the mounting rod 13 rises and presses against the bottom of the first gear 19, it applies pressure to the first gear 19 to stop its rotation, thereby fixing the current extended position of the bracket 23. As the mounting rod 13 continues to rise, the first mounting ring 14 on the side wall of the mounting rod 13 rises accordingly, and drives the connecting rod 15, which is rotatably mounted on it, to flip from the middle to both sides. The second mounting ring 16, rotatably mounted on the other end of the connecting rod 15, also moves from the middle to both sides as the connecting rod 15 flips. The second mounting ring 16 is fixed to the side wall of the support leg 22, thereby pushing the support leg 22 to flip and be spread open inside the mounting base 21, ultimately forming a triangular structure to complete the quick positioning support. The measuring device 29 is inserted into the mounting plate 11, and the measuring device 29 squeezes the push block 28. The push block 28 is forced to compress the piston rod 27. At the same time, the pull rods 25 on both sides are pulled, and the pull rods 25 cause the springs 26 sleeved on their side walls to be stretched. The pull rods 25 are inserted into the measuring device 29. Under the elastic force of the springs 26, the pull rods 25 tightly hold the measuring device 29, thereby quickly and firmly locking the measuring device 29 above the mounting plate 11.
[0024] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0025] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A tunnel construction monitoring, measurement, and positioning device, comprising a mounting plate (11), wherein a cylinder (12) is fixedly mounted on the bottom of the mounting plate (11), characterized in that: A positioning mechanism is fixedly provided at the output end of the cylinder (12); The positioning mechanism includes a mounting rod (13), which is located at the output end of the cylinder (12). A first mounting ring (14) is fixedly mounted on the side wall of the mounting rod (13). A connecting rod (15) is rotatably mounted on the first mounting ring (14). A second mounting ring (16) is rotatably mounted on the end of the connecting rod (15) away from the first mounting ring (14). A fixing rod (17) is fixedly mounted on the bottom of the cylinder (12). A connecting plate (18) is fixedly mounted on the bottom of the fixing rod (17). A first gear (19) is rotatably mounted on the bottom of the connecting plate (18). A mounting seat (21) is fixedly mounted on the bottom of the mounting plate (11). A support leg (22) is movably mounted inside the mounting seat (21). A bracket (23) is slidably mounted inside the support leg (22). An internal thread gear (24) is rotatably mounted on the bottom of the support leg (22).
2. The tunnel construction monitoring, measurement, and positioning device according to claim 1, characterized in that: The internal threaded gear (24) is threadedly mounted to the bracket (23).
3. The tunnel construction monitoring, measurement, and positioning device according to claim 2, characterized in that: The internal threaded gear (24) is meshed with the first gear (19), and the second mounting ring (16) is fixedly mounted on the side wall of the support leg (22).
4. The tunnel construction monitoring, measurement, and positioning device according to claim 1, characterized in that: A pull rod (25) is slidably installed inside the mounting plate (11), and a spring (26) is sleeved on the side wall of the pull rod (25).
5. A tunnel construction monitoring, measurement, and positioning device according to claim 4, characterized in that: The spring (26) is fixedly installed on the mounting plate (11), and the end of the spring (26) away from the mounting plate (11) is fixedly installed on the pull rod (25).
6. A tunnel construction monitoring, measurement, and positioning device according to claim 5, characterized in that: A piston rod (27) is fixedly installed on the side wall of the mounting plate (11), and a push block (28) is fixedly installed on the end of the piston rod (27) away from the mounting plate (11).
7. A tunnel construction monitoring, measurement, and positioning device according to claim 6, characterized in that: The measuring device (29) is slidably mounted on the side wall of the mounting plate (11), and the pull rod (25) is inserted into the measuring device (29).