Deep foundation pit monitoring and supporting device

Abstract

The utility model relates to the technical field of foundation pit construction, and discloses a deep foundation pit monitoring and supporting device which comprises a support, a box body is arranged on one side of the support and is of a cavity structure with an opening in the bottom end, a sealing plate is installed at the bottom end of the box body, an alarm and a warning lamp are installed at the top end of the box body, and installation grooves are symmetrically formed in the box body. Mounting rods inserted into the mounting grooves in a penetrating mode are fixedly connected to the support, a fixing mechanism connected with the four mounting rods is arranged on the side, away from the support, of the box body, a controller, a battery and a sound sensor are installed on the inner wall of the top end of the box body, a fixing base is fixedly connected to the middle of the inner wall of the top end of the box body, and a spherical base is fixedly connected to the bottom end of the fixing base; a spherical head is movably mounted in the spherical seat; according to the utility model, the bottom end of the box body is sealed by the sealing plate and the rectangular plate, so that external wind power can be prevented from blowing the beating ball to swing, misoperation caused by beating the beating plate by swinging of the beating ball is avoided, and the accuracy of foundation pit inclination detection by the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction technology, and in particular to a deep foundation pit monitoring and support device. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Excavation pit support is a set of measures to support, reinforce, and protect the sidewalls and surrounding environment of the excavation pit to ensure the safety of underground structure construction and the surrounding environment. After the excavation pit support is established, it may deform under the pressure of the surrounding soil due to construction or geological reasons. If not detected in time, soil falling or even excavation pit collapse may occur, which will not only affect the construction process but also easily cause accidents. In order to avoid the occurrence of excavation pit accidents, monitoring devices are needed to monitor the excavation pit support so as to detect the deformation of the excavation pit support in time.

[0003] Patent CN219080434U discloses a monitoring and early warning device for deep foundation pit support construction. This patent describes a device where, when the foundation pit support tilts, the activation rod on the side wall of a swing arm contacts a buzzer, causing the buzzer to sound and alerting workers inside the pit to the tilt. However, the buzzer is only triggered when the pit tilts towards the activation rod; it fails to activate when tilting away from the rod, resulting in low detection accuracy. Furthermore, the swing arm is susceptible to wind damage and may deflect, posing a risk of false alarms. Utility Model Content

[0004] To address the technical issues that the buzzer can only be triggered when the foundation pit is tilted towards the starting rod, but cannot be triggered when it is tilted away from the starting rod, resulting in low detection accuracy, and that the swing ball is susceptible to wind and may deflect due to the external environment, thus posing a risk of false alarms, this utility model provides a deep foundation pit monitoring and support device.

[0005] This utility model is achieved using the following technical solution: a deep foundation pit monitoring and support device, including a support frame, a box on one side of the support frame, the box being a hollow structure with an open bottom, a sealing plate installed at the bottom of the box, an alarm and a warning light installed at the top of the box, symmetrical mounting slots on the box, mounting rods inserted into the mounting slots fixedly connected to the support frame, a fixing mechanism connected to four mounting rods on the side of the box away from the support frame, a controller, a battery and a sound sensor installed on the inner wall of the top of the box, a fixed seat fixedly connected to the middle of the inner wall of the top of the box, a spherical seat fixedly connected to the bottom of the fixed seat, a spherical head movably installed inside the spherical seat, a swing rod fixedly connected to the bottom of the spherical head, a striking ball fixedly connected to the bottom of the swing rod, a connecting ring located outside the striking ball inside the box, a striking plate installed on the inner wall of the connecting ring, and hanging rods fixedly connected to the inner wall of the top of the box at equal intervals at the top of the connecting ring.

[0006] As a further improvement to the above solution, a soundproof cover is installed on the inner wall of the enclosure.

[0007] As a further improvement to the above solution, a rectangular plate that contacts the inner wall of the soundproof cover is fixed to the top of the sealing plate.

[0008] As a further improvement to the above solution, the fixing mechanism includes a connecting rod located between two adjacent mounting rods. The two connecting rods are horizontally arranged, and each of the two connecting rods has a symmetrical slot on its side closest to the other. The interior of each of the two connecting rods has a sliding groove that communicates with the slot. A plug-in rod is slidably installed inside the sliding groove. Each mounting rod has a plug-in groove on its side closest to the connecting rod. One end of the plug-in rod extends into the plug-in groove. A spring connected to the side wall of the plug-in rod is fixed to the inner wall of the sliding groove. A push rod is fixed to the end of the mounting rod away from the two plug-in rods. The two push rods are vertically arranged and perpendicular to the connecting rods. The push rods slide in contact with the side wall of the connecting rods. A moving unit connected to the two push rods is provided on one side of the housing.

[0009] As a further improvement to the above solution, the moving unit includes a rotating shaft rotatably mounted on the side wall of the housing, a cam and a worm gear fixedly sleeved on the rotating shaft, the worm gear being located on one side of the cam, and the outer wall of the cam slidingly contacting the inner walls of the two push rods. A worm located on one side of the worm gear is installed on the outer side of the housing, and the worm gear meshes with the worm gear.

[0010] As a further improvement to the above solution, the plug rod has an L-shaped structure and the striking plate is made of metal.

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

[0012] This invention uses a sealing plate and a rectangular plate to seal the bottom of the housing, preventing external wind from causing the striking ball to swing and avoid misoperation caused by the ball hitting the striking plate. This improves the accuracy of the device in detecting the tilt of the foundation pit. The design of the fixed seat, spherical seat, spherical head, swing rod, striking ball, connecting ring, striking plate, and hanging rod allows the striking ball to swing 360 degrees to strike the striking plate. This enables monitoring of the foundation pit when it is tilted in any direction, effectively increasing the monitoring range and improving work safety. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the deep foundation pit monitoring and support device provided by this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the side section structure;

[0015] Figure 3 for Figure 1 Schematic diagram of the main cross-section;

[0016] Figure 4 for Figure 3 A schematic diagram of the main cross-section.

[0017] Explanation of key symbols:

[0018] 1. Bracket; 2. Housing; 3. Alarm; 4. Warning light; 5. Mounting rod; 6. Mounting slot; 7. Soundproof cover; 8. Sealing plate; 9. Rectangular plate; 10. Fixing base; 11. Spherical seat; 12. Spherical head; 13. Swing rod; 14. Striking ball; 15. Connecting ring; 16. Striking plate; 17. Hanging rod; 18. Controller; 19. Battery; 20. Sound sensor; 21. Connecting rod; 22. Groove; 23. Slide; 24. Inserting rod; 25. Inserting slot; 26. Push rod; 27. Spring; 28. Rotating shaft; 29. ​​Cam; 30. Worm gear; 31. Worm. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Please combine Figures 1 to 4This embodiment of a deep foundation pit monitoring and support device includes a support 1. A box 2 is provided on one side of the support 1. The box 2 is a hollow structure with an open bottom. A sealing plate 8 is installed at the bottom of the box 2. An alarm 3 and a warning light 4 are installed at the top of the box 2. Installation slots 6 are symmetrically provided on the box 2. Installation rods 5, which pass through the installation slots 6, are fixed to the support 1. A fixing mechanism connected to the four installation rods 5 is provided on the side of the box 2 away from the support 1. A controller 18, a battery 19, and a sound sensor 20 are installed on the inner wall of the top of the box 2. A fixing seat 10 is fixed to the middle of the inner wall of the top of the box 2. A spherical seat 11 is fixed to the bottom of the fixing seat 10. A spherical head 12 is movably installed inside the spherical seat 11. A swing arm 13 is fixedly connected to the bottom end of the spherical head 12, and a striking ball 14 is fixedly connected to the bottom end of the swing arm 13. The inside of the housing 2 is provided with a connecting ring 15 located outside the striking ball 14. A striking plate 16 is installed on the inner wall of the connecting ring 15. A hanging rod 17, which is fixed to the inner wall of the top of the housing 2, is installed at equal intervals on the top of the connecting ring 15. The alarm 3 and the warning light 4 are electrically connected to the controller 18. The alarm 3 and the warning light 4 can provide audible and visual alarms to remind the surrounding staff to evacuate as soon as possible. The battery 19 is a storage battery that provides power for the operation of the alarm 3, the warning light 4, the controller 18, and the sound sensor 20. The striking ball 14 is a plumb bob or an iron ball. The sound sensor 20 is a BR-ZS1 noise monitor.

[0021] The inner wall of the enclosure 2 is equipped with a soundproof cover 7. A rectangular plate 9 is fixed to the top of the sealing plate 8, which contacts the inner wall of the soundproof cover 7. The material of the soundproof cover 7 is polyurethane foam, and the rectangular plate 9 is soundproof gypsum board. The close contact between the rectangular plate 9 and the inner wall of the soundproof cover 7 improves the sealing performance of the enclosure 2. The design of the soundproof cover 7 effectively provides sound insulation, reducing the transmission of external sound into the enclosure 2. This facilitates the sound sensor 20 to monitor the impact sound of the hitting ball 14 hitting the hitting plate 16 in real time, improving the monitoring quality. The sealing of the bottom of the enclosure 2 by the sealing plate 8 and the rectangular plate 9 prevents the hitting ball 14 from swinging due to external wind, reducing the impact caused by the swinging of the hitting ball 14 and resulting in erroneous operation. This improves the detection accuracy of the device when the foundation pit tilts and the support tilts.

[0022] The fixing mechanism includes a connecting rod 21 located between two adjacent mounting rods 5 and fixedly installed on the outer wall of the housing 2. The two connecting rods 21 are horizontally arranged, and each of the two connecting rods 21 has a symmetrical slot 22 on the side closest to each other. The interior of each of the two connecting rods 21 has a sliding groove 23 that communicates with the slot 22. A plug-in rod 24 is slidably installed inside the sliding groove 23. Each mounting rod 5 has a plug-in groove 25 on the side close to the connecting rod 21. One end of the plug-in rod 24 extends into the plug-in groove 25. The inner side wall of the sliding groove 23 is fixedly connected to the side wall of the plug-in rod 24. The connected spring 27 has a push rod 26 fixedly connected to one end away from the two plug rods 24. The two push rods 26 are vertically arranged and perpendicular to the docking rod 21. The push rods 26 slide in contact with the side wall of the docking rod 21. A moving unit connected to the two push rods 26 is provided on one side of the housing 2. The housing 2 is effectively installed by the four mounting rods 5 passing through the mounting slots 6. Then, the plug rods 24 are inserted into the plug slots 25 to lock the docking rods 21 to the mounting rods 5, which effectively improves the installation stability of the housing 2 and the mounting rods 5.

[0023] The moving unit includes a rotating shaft 28 rotatably mounted on the side wall of the housing 2. A cam 29 and a worm gear 30 are fixedly sleeved on the rotating shaft 28. The worm gear 30 is located on one side of the cam 29, and the outer wall of the cam 29 slides in contact with the inner walls of the two push rods 26. A worm 31 located on one side of the worm gear 30 is mounted on the outer side of the housing 2. The worm 31 is meshed with the worm gear 30. The plug-in rod 24 has an L-shaped structure, and the striking plate 16 is made of metal. Through the moving unit, the two push rods 26 can be moved away from each other, so that the four plug-in rods 24 can move synchronously and insert into the corresponding plug-in slots 25 synchronously, effectively realizing the connection between the housing 2 and the mounting rod 5, thereby providing stability for the housing 2 to be installed on one side of the bracket 1.

[0024] The implementation principle of a deep foundation pit monitoring and support device in this application embodiment is as follows: During installation, the worker aligns the four mounting slots 6 on the box 2 with the four mounting rods 5 respectively. At this time, the cam 29 is in a vertical state, and the end of the insertion rod 24 is located inside the connecting rod 21, while the sliding groove 23 is in a retracted state, so that the mounting rod 5 is inserted into the mounting slot 6, achieving tight contact between the side wall of the box 2 and the side wall of the support 1. At this time, the insertion slot 25 is aligned with the insertion rod 24. Then, the worm gear 31 is rotated. Through the meshing connection between the worm gear 31 and the worm wheel 30, the worm wheel 30 will rotate. 30 drives the rotating shaft 28 to rotate, and the rotating shaft 28 drives the cam 29 to rotate. The outer wall of the cam 29 slides in contact with the inner wall of the two push rods 26. During the rotation, the cam 29 pushes the two push rods 26 away from each other. Then the push rods 26 drive the plug rod 24 to slide inside the slide groove 23, and one end of the plug rod 24 is inserted into the plug groove 25 on the side wall of the mounting rod 5. At this time, the spring 27 is in a stretched state, and the cam 29 is in a horizontal state, effectively completing the fixed connection of the plug rod 24 to the mounting rod 5, thereby making the box 2 stably installed on one side of the bracket 1.

[0025] Because bracket 1 is installed in a deep foundation pit, when the foundation pit tilts, bracket 1 will tilt in the same direction. Bracket 1 will cause box 2 to tilt synchronously, causing the fixed seat 10, spherical seat 11, connecting ring 15, striking plate 16, and hanging rod 17 inside box 2 to tilt synchronously. However, because the spherical head 12 is in rolling contact with the spherical seat 11, and the striking ball 14 is suspended by the swing rod 13, the striking ball 14 will swing relative to the striking plate 16, achieving the impact of the striking ball 14 on the striking plate 16. Due to the spherical structure of the spherical head 12 and the spherical seat 11, and the impact... The striking plate 16 and the circumferential design allow the support 1 to strike the ball 14 against the striking plate 16 at any angle in the horizontal direction. This effectively enables real-time monitoring of any angle of inclination in the deep foundation pit. When the striking ball 14 strikes the striking plate 16, it will produce a sound. After the sound sensor 20 detects the striking sound, it will transmit the signal to the controller 18. The controller 18 will then control the alarm 3 and the warning light 4 to work, so that the staff can be informed of the alarm information in a timely manner. This allows the staff to be aware of the danger in the foundation pit in a timely manner, thereby improving the safety of the staff.

[0026] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A deep foundation pit monitoring and support device, characterized in that, The device includes a bracket, with a housing on one side. The housing is a hollow structure with an open bottom and a sealing plate installed at the bottom. An alarm and warning light are installed at the top of the housing. There are symmetrical mounting slots on the housing, and mounting rods inserted into the mounting slots are fixed to the bracket. A fixing mechanism connected to the four mounting rods is located on the side of the housing away from the bracket. A controller, battery, and sound sensor are installed on the inner wall of the top of the housing. A fixed seat is fixed in the middle of the inner wall of the top of the housing. A ball seat is fixed at the bottom of the fixed seat. A ball head is movably installed inside the ball seat. A swing rod is fixed at the bottom of the ball head. A striking ball is fixed at the bottom of the swing rod. A connecting ring is located inside the housing outside the striking ball. A striking plate is installed on the inner wall of the connecting ring. Hanging rods fixed to the inner wall of the top of the housing are installed at equal intervals at the top of the connecting ring.

2. The deep foundation pit monitoring and support device as described in claim 1, characterized in that, The inner wall of the enclosure is fitted with a soundproof cover.

3. The deep foundation pit monitoring and support device as described in claim 1, characterized in that, A rectangular plate that contacts the inner wall of the soundproof cover is fixed to the top of the sealing plate.

4. The deep foundation pit monitoring and support device as described in claim 1, characterized in that, The fixing mechanism includes a connecting rod located between two adjacent mounting rods. The two connecting rods are horizontally arranged, and each of the two connecting rods has a symmetrical slot on the side closest to it. The interior of each of the two connecting rods has a sliding groove that communicates with the slot. A plug-in rod is slidably installed inside the sliding groove. Each mounting rod has a plug-in groove on the side closest to the connecting rod. One end of the plug-in rod extends into the plug-in groove. A spring connected to the side wall of the plug-in rod is fixed to the inner side wall of the sliding groove. A push rod is fixed to the end away from the two plug-in rods. The two push rods are vertically arranged and perpendicular to the connecting rods. The push rods slide in contact with the side wall of the connecting rods. A moving unit connected to the two push rods is provided on one side of the housing.

5. The deep foundation pit monitoring and support device as described in claim 4, characterized in that, The moving unit includes a rotating shaft rotatably mounted on the side wall of the housing. A cam and a worm gear are fixedly sleeved on the rotating shaft. The worm gear is located on one side of the cam, and the outer wall of the cam slides in contact with the inner walls of the two push rods. A worm is installed on the outside of the housing, located on one side of the worm gear, and the worm is meshed with the worm gear.

6. The deep foundation pit monitoring and support device as described in claim 4, characterized in that, The connector rod has an L-shaped structure, and the striking plate is made of metal.

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