Displacement detection device for supporting structure

Abstract

The utility model relates to a supporting structure displacement detection device, and belongs to the technical field of supporting structure displacement detection. Comprising a base, a U-shaped support, a protection box, a lifting threaded rod, a limiting mechanism, a first infrared transmitter, a first infrared receiver, a second infrared transmitter, a second infrared receiver, a test column, a reference column, a controller and an alarm, the first infrared receiver and the second infrared receiver are installed on the limiting mechanism, the first infrared transmitter is installed on the test column, and the second infrared transmitter is installed on the reference column. The test column is installed on the support frame, the second infrared emitter is installed on the reference column, and the reference column is installed in the foundation pit; during detection, the distance between the device and the supporting structure and the distance between the reference column and the device can be detected, whether the supporting structure is displaced or not can be detected, when the distance of the supporting structure is changed, whether the supporting structure is displaced or not can be better judged by checking whether the distance between the reference column and the device is changed or not, and the detection effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of support structure displacement detection technology, specifically relating to a support structure displacement detection device. Background Technology

[0002] An excavation pit is a pit dug at the designed foundation location according to the base elevation and foundation dimensions. The excavation pit support structure is a set of supporting, reinforcing, and protective measures taken to ensure the safety of adjacent buildings, structures, pipes, lines, and cables. It maintains the stability of the exposed soil during excavation and the pit's use, ensuring construction safety. During excavation, as soil is removed from the pit, the soil on the pit's sidewalls tends to move inwards. This increases the pressure on the excavation pit support structure, and insufficient support strength can easily lead to accidents. Therefore, detecting the displacement of the foundation pit support structure is crucial for ensuring the safety of surrounding buildings, eliminating safety hazards, and guaranteeing construction accuracy. Existing detection devices consist of a signal transmitter installed inside the foundation pit and a signal receiver installed on the support structure to detect displacement changes. However, during the detection process, the signal transmitter itself may move, leading to inaccurate detection and false alarms. Therefore, this invention provides a support structure displacement detection device to better detect the displacement of the foundation pit support structure. Summary of the Invention

[0003] To overcome the problems mentioned in the background art, this utility model provides a support structure displacement detection device. During detection, this utility model can detect the distance from the device to the support structure, as well as the distance from the reference column to the device, and can detect whether the support structure has shifted. When the distance to the support structure changes, the change in the distance from the reference column to the device can better determine whether the support structure has shifted, thus improving the detection effect.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: The support structure displacement detection device includes a base 1, a U-shaped bracket 2, a protective box 3, a lifting threaded rod 4, a limiting mechanism 5, a first infrared transmitter 6, a first infrared receiver 7, a second infrared transmitter 8, a second infrared receiver 9, a test column 10, a reference column 11, a controller 12, and an alarm 13. The U-shaped bracket 2 is inverted and mounted on top of the base 1. The protective box 3 is installed on top of the U-shaped bracket 2, and the top of the protective box 3 is open. The bottoms of the U-shaped bracket 2 and the protective box 3 are respectively provided with through holes. A threaded cylinder 14 is installed in the through holes, and the threaded cylinder 14 is internally threaded... A lifting threaded rod 4 is connected, and the limiting mechanism 5 is installed on the top of the lifting threaded rod 4. The first infrared receiver 7 and the second infrared receiver 9 are installed on the limiting mechanism 5. The first infrared transmitter 6 is installed on the test column 10, and the test column 10 is installed on the support frame. The second infrared transmitter 8 is installed on the reference column 11, and the reference column 11 is installed in the pit. The controller 12 and the alarm 13 are installed on the U-shaped bracket 2. The first infrared transmitter 6, the first infrared receiver 7, the second infrared transmitter 8, the second infrared receiver 9, and the alarm 13 are all electrically connected to the controller 12. The controller 12 is also connected to a wireless transceiver.

[0005] Furthermore, the limiting mechanism 5 includes a base plate 15, a partition plate 16, a U-shaped limiting frame 17, and a movable abutment component 18. The base plate 15 is installed on the top of the lifting threaded rod 4, the partition plate 16 is installed on the top of the base plate 15, and U-shaped limiting frames 17 are installed on the top of the base plate 15 and on both sides of the partition plate 16. The left and right sides of the U-shaped limiting frame 17 are provided with limiting grooves 19. The first infrared receiver 7 and the second infrared receiver 9 are respectively installed in the U-shaped limiting frames 17 on both sides of the partition plate, and the left and right sides of the first infrared receiver 7 and the second infrared receiver 9 are respectively provided with limiting blocks 20 located in the limiting grooves 19. The movable abutment component 18 is installed on the partition plate 16 and on the top of the first infrared receiver 7 and the second infrared receiver 9.

[0006] Furthermore, the movable abutment assembly 18 includes a lead screw 21, a handle 22, a guide rod 23, a movable block 24, a cover plate 25, and an abutment post 26. The partition plate 16 has a groove 27. The lead screw 21 is rotatably installed in the groove 27, and one end of the lead screw 21 extends to the top of the groove and is connected to the handle 22. The guide rod 23 is installed in the groove 27. One end of the movable block 24 is threaded to the lead screw 21, and the other end is slidably fitted onto the guide rod 23. Two support pillars 28 are installed on the movable block 24, and a cover plate 25 is installed on the top of the support pillars 28. The tops of the first infrared receiver 7 and the second infrared receiver 9 are respectively symmetrically provided with two abutment grooves 29. The bottom of the cover plate 25 is fitted with an abutment post 26 that abuts against the abutment groove 29.

[0007] Furthermore, the protective box 3 is provided with sliding grooves 30 on both the left and right sides to facilitate the sliding of the partition 16.

[0008] Furthermore, the base 1 is equipped with fixing plates 31 at its four corners, and the fixing plates 31 are provided with first fixing holes 32, and first insert rods 33 are inserted into the first fixing holes 32.

[0009] Furthermore, a support plate 34 is installed at the bottom of the reference column 11, and a second fixing hole 35 is provided at the four corners of the support plate 34, and a second insert rod 36 is inserted into the second fixing hole 35.

[0010] The beneficial effects of this utility model are:

[0011] This invention uses a first infrared transmitter and a first infrared receiver to detect the distance from the device to the support structure, and a second infrared transmitter and a second infrared receiver to detect the distance from the reference column to the device. When the distance from the device to the support structure changes, the distance from the reference column to the device can be checked to determine whether the support structure has shifted. By measuring and comparing the two distances, it is possible to better determine whether the support structure has shifted, thus improving the detection effect. At the same time, the infrared detector is installed on a limiting mechanism, which facilitates disassembly, maintenance, or replacement. The infrared detector is moved and installed in the protective box via a lifting threaded rod. During use, it can be moved outside the protective box, and after the detection is completed, it can be reset inside the protective box to protect the infrared detector. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a partial structural diagram of the device of this utility model.

[0014] Figure 3 This is a cross-sectional schematic diagram of the internal structure of this utility model.

[0015] Figure 4 yes Figure 3 Enlarged schematic diagram of part A in the middle.

[0016] Reference numerals in the figures: 1. Base; 2. U-shaped bracket; 3. Protective box; 4. Lifting threaded rod; 5. Limiting mechanism; 6. First infrared transmitter; 7. First infrared receiver; 8. Second infrared transmitter; 9. Second infrared receiver; 10. Test column; 11. Reference column; 12. Controller; 13. Alarm; 14. Threaded cylinder; 15. Base plate; 16. Partition plate; 17. U-shaped limiting frame; 18. Moving abutment assembly; 19. Limiting groove; 20. Limiting block; 21. Screw; 22. Handle; 23. Guide rod; 24. Moving block; 25. Cover plate; 26. Abutment column; 27. Groove; 28. Support column; 29. ​​Abutment groove; 30. Sliding groove; 31. Fixing plate; 32. First fixing hole; 33. First insertion rod; 34. Support plate; 35. Second fixing hole; 36. Support frame; 37. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0018] like Figure 1-4This utility model discloses a support structure displacement detection device, which includes a base 1, a U-shaped bracket 2, a protective box 3, a lifting threaded rod 4, a limiting mechanism 5, a first infrared transmitter 6, a first infrared receiver 7, a second infrared transmitter 8, a second infrared receiver 9, a test column 10, a reference column 11, a controller 12, and an alarm 13. The U-shaped bracket 2 is inverted and mounted on top of the base 1. The protective box 3 is mounted on top of the U-shaped bracket 2 and has an open top. The bottom of the U-shaped bracket 2 and the protective box 3 have corresponding through holes, and a threaded cylinder 14 is installed in the through holes. The lifting threaded rod 4 is threadedly connected to the threaded cylinder 14. The limiting mechanism 5 is mounted on top of the lifting threaded rod 4. The first infrared receiver 7 and the second infrared receiver 9 are mounted on the limiting mechanism 5. The first infrared transmitter 6 is mounted on the test column 10, which is mounted on the support frame. The second infrared transmitter 8 is mounted on the reference column 11, which is mounted inside the foundation pit. The controller 12 and the alarm 13 are mounted on the U-shaped bracket 2. The transmitter 6, first infrared receiver 7, second infrared transmitter 8, second infrared receiver 9, and alarm 13 are all electrically connected to the controller 12. The controller 12 is also connected to a wireless transceiver, facilitating the transmission of test results during testing, such as to a mobile phone for easy viewing by staff. During testing, the first infrared transmitter is mounted on a test column, which is then mounted on a support frame. The second infrared transmitter is mounted on a reference column, which can be installed inside the pit, placing the first and second infrared transmitters at the same horizontal level. The first and second infrared receivers are mounted on a limiting mechanism, with their receiving surfaces facing the first and second infrared transmitters, respectively. A lifting screw moves the infrared receivers outside the protective box, placing them at the same horizontal level as the first and second infrared transmitters. The distance from the device to the support structure is detected by the first infrared transmitter and receiver, allowing for the detection of distance changes, i.e., whether the support structure has shifted. When a distance change occurs, the controller activates the alarm to alert staff. The distance from the reference column to the device is detected by a second infrared transmitter and a second infrared receiver. When the distance from the detection device to the support structure changes, the distance from the reference column to the device can be checked. If it remains unchanged, the distance from the detection device to the support structure has changed, indicating that the support structure has shifted. If it changes, the detection device itself may have moved, but the support structure has not. By measuring and comparing the two distances, it is possible to better determine whether the support structure has shifted, thus improving the detection effect. At the same time, the infrared detector is installed on the limit mechanism, which facilitates disassembly, maintenance, or replacement. The infrared detector is moved and installed in the protective box via a lifting threaded rod. When in use, it can be moved outside the protective box, and after the detection is completed, it can be reset inside the protective box to protect the infrared detector.

[0019] The limiting mechanism 5 includes a base plate 15, a partition plate 16, a U-shaped limiting frame 17, and a movable abutment assembly 18. The base plate 15 is installed on top of the lifting threaded rod 4, and the partition plate 16 is installed on top of the base plate 15. U-shaped limiting frames 17 are installed on the top of the base plate 15 and on both sides of the partition plate 16. Limiting grooves 19 are provided on both the left and right sides of the U-shaped limiting frames 17. The first infrared receiver 7 and the second infrared receiver 9 are respectively installed within the U-shaped limiting frames 17 on both sides of the partition plate, and limiting blocks 20 located within the limiting grooves 19 are provided on the left and right sides of the first infrared receiver 7 and the second infrared receiver 9, respectively. A movable abutment assembly 18 is installed on the partition plate 16 and on top of the first infrared receiver 7 and the second infrared receiver 9. The movable abutment assembly 18 includes a lead screw 21, a handle 22, a guide rod 23, a moving block 24, a cover plate 25, and an abutment post 26. A groove 27 is provided in the partition plate 16, and the lead screw 21 is rotatably installed in the groove 27, with one end of the lead screw 21 rotatably extending into the groove. A handle 22 is connected to the top externally. The guide rod 23 is installed in the groove 27. One end of the moving block 24 is threaded to the lead screw 21, and the other end is slidably fitted onto the guide rod 23. Two pillars 28 are installed on the moving block 24, and a cover plate 25 is installed on the top of the pillars 28. The tops of the first infrared receiver 7 and the second infrared receiver 9 are respectively provided with two symmetrical abutment grooves 29. The bottom of the cover plate 25 is installed with an abutment post 26 that abuts into the abutment groove 29. The first infrared receiver and the second infrared receiver are respectively placed in the U-shaped limiting frames on both sides of the partition. Then, the handle is manually rotated to rotate the lead screw, causing the moving block threaded to the lead screw to move up and down. When installing the infrared receiver, the moving block moves down, causing the cover plate and the abutment post to move down, so that the abutment post abuts into the abutment groove, which facilitates the stable installation of the infrared receiver. When the infrared receiver needs to be removed, the handle is rotated in the opposite direction, causing the moving block to move the cover plate and the abutment post up, disengaging from the infrared receiver, so that the infrared receiver can be removed. This facilitates the disassembly and assembly of the infrared receiver. Meanwhile, the cover can be placed on top of the protective box to protect the infrared receiver.

[0020] The protective box 3 is provided with sliding grooves 30 on both the left and right sides to facilitate the sliding of the partition 16; the sliding grooves facilitate the up and down movement of the partition.

[0021] The base 1 is equipped with fixing plates 31 at its four corners. The fixing plates 31 are provided with first fixing holes 32, and first insert rods 33 are inserted into the first fixing holes 32. The first insert rods facilitate the installation of the device in the pit.

[0022] A support plate 34 is installed at the bottom of the reference column 11. The support plate 34 has second fixing holes 35 at its four corners, and second insert rods 36 are inserted into the second fixing holes 35. The second insert rods facilitate the installation of the reference column in the foundation pit.

[0023] Work process:

[0024] The working principle of this utility model is as follows: During testing, the first infrared transmitter 6 is installed on the test column 10, and the test column 10 is installed on the support frame 37. The second infrared transmitter 8 is installed on the reference column 11. The reference column 11 can be installed in the pit so that the first infrared transmitter 6 and the second infrared transmitter 8 are at the same horizontal height. The first infrared receiver 7 and the second infrared receiver 9 are placed in the U-shaped limiting frames 17 on both sides of the partition 16, respectively. Then, the handle 22 is manually rotated to rotate the lead screw 21, so that the moving block 24 threaded on the lead screw 22 moves up and down. When installing the infrared receiver, the moving block 24 moves down, which drives the cover plate 25 and the abutment column 26 to move down, so that the abutment column 26 abuts in the abutment groove 29, which facilitates the stable installation of the infrared receiver. The infrared receiver is moved to the same horizontal height as the first and second infrared transmitters by lifting the threaded rod 4. The distance from the device to the support structure is detected by the first infrared transmitter 6 and the first infrared receiver 7. Changes in distance are detected, i.e., whether the support structure has shifted. When the distance changes, the alarm 13 is activated by the controller 12 to alert the staff. The distance from the reference column 11 to the device is detected by the second infrared transmitter 8 and the second infrared receiver 9. When the distance from the detection device to the support structure changes, the distance from the reference column to the device can be checked. If it does not change, the distance from the detection device to the support structure has changed, i.e., the support structure has shifted. If this distance also changes, the detection device itself may have moved, but the support structure has not moved, which can improve the detection effect.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A support structure displacement detection apparatus, characterised in that: The supporting structure displacement detection device includes a base (1), a U-shaped support (2), a protection box (3), a lifting threaded rod (4), a limiting mechanism (5), a first infrared emitter (6), a first infrared receiver (7), a second infrared emitter (8), a second infrared receiver (9), a test column (10), a reference column (11), a controller (12) and an alarm (13), the U-shaped support (2) is inverted on the top of the base (1), the protection box (3) is installed on the top of the U-shaped support (2), and the top of the protection box (3) is designed as an opening, the U-shaped support (2) is provided with a through hole corresponding to the bottom of the protection box (3), a threaded cylinder (14) is installed in the through hole, the lifting threaded rod (4) is screwed in the threaded cylinder (14), the limiting mechanism (5) is installed on the top of the lifting threaded rod (4), the first infrared receiver (7) and the second infrared receiver (9) are installed on the limiting mechanism (5), the first infrared emitter (6) is installed on the test column (10), the test column (10) is installed on the support frame, the second infrared emitter (8) is installed on the reference column (11), the reference column (11) is installed in the foundation pit, the controller (12) and the alarm (13) are installed on the U-shaped support (2), the first infrared emitter (6), the first infrared receiver (7), the second infrared emitter (8), the second infrared receiver (9) and the alarm (13) are electrically connected with the controller (12), and the controller (12) is further connected with a wireless transceiver.

2. The support structure displacement detection apparatus of claim 1, wherein: The limiting mechanism (5) includes a bottom plate (15), a partition plate (16), a U-shaped limiting frame (17) and a moving abutting assembly (18), the bottom plate (15) is installed on the top of the lifting threaded rod (4), the partition plate (16) is installed on the top of the bottom plate (15), the U-shaped limiting frame (17) is installed on the top of the bottom plate (15) and located on the two sides of the partition plate (16), the U-shaped limiting frame (17) is provided with a limiting groove (19) on the left and right sides, the first infrared receiver (7) and the second infrared receiver (9) are installed in the U-shaped limiting frame (17) on the two sides of the partition plate respectively, and the first infrared receiver (7) and the second infrared receiver (9) are respectively provided with a limiting block (20) located in the limiting groove (19) on the left and right sides, and the moving abutting assembly (18) is installed on the partition plate (16) and located on the top of the first infrared receiver (7) and the second infrared receiver (9).

3. The support structure displacement detection apparatus of claim 2, wherein: The mobile abutting assembly (18) comprises a screw rod (21), a handle (22), a guide rod (23), a moving block (24), a cover plate (25) and an abutting column (26), the partition plate (16) is internally provided with a groove (27), the screw rod (21) is rotatably installed in the groove (27), and one end of the screw rod (21) rotatably extends to the top of the groove and is connected with the handle (22) outside; the guide rod (23) is installed in the groove (27), one end of the moving block (24) is threadedly connected to the screw rod (21), and the other end of the moving block (24) is slidably sleeved on the guide rod (23); two support columns (28) are installed on the moving block (24), the top of the support column (28) is provided with the cover plate (25), the top of the first infrared receiver (7) and the second infrared receiver (9) is respectively provided with two abutting grooves (29), and the bottom of the cover plate (25) is provided with the abutting column (26) which is abutted in the abutting grooves (29).

4. The support structure displacement detection apparatus of claim 2, wherein: The protection box (3) is provided with a sliding groove (30) on the left and right sides, facilitating the sliding of the partition plate (16).

5. The support structure displacement detection apparatus of claim 1, wherein: The base (1) is provided with a fixed plate (31) on four corners, the fixed plate (31) is provided with a first fixed hole (32), and the first fixed hole (32) is provided with a first insertion rod (33) inserted therein.

6. The support structure displacement detection apparatus of claim 1, wherein: The reference column (11) is provided with a support plate (34) on the bottom, the support plate (34) is provided with a second fixed hole (35) on four corners, and the second fixed hole (35) is provided with a second insertion rod (36) inserted therein.

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