Early warning device

Abstract

The utility model relates to the technical field of foundation pit monitoring, in particular to early warning equipment which comprises a fixing plate, a motor is fixedly arranged at the top of the fixing plate, the output end of the motor is in transmission connection with a threaded rod, a first bevel gear is fixedly arranged on the threaded rod, and the two sides of the first bevel gear are correspondingly meshed with second bevel gears. A screw rod is fixedly arranged on one side of the screw rod, a guide seat is fixedly arranged at the bottom of the fixing plate, the screw rod is in threaded connection with a spiral column, a side plate is fixedly arranged at one end of the spiral column, and when soil in a foundation pit displaces, soil can push a top plate to move in the direction close to the side plate, so that the top plate pushes a U-shaped plate to make contact with two communicating contacts; according to the foundation pit monitoring method, the foundation pits are monitored through the alarm device, then the alarm device gives out alarm sound, the foundation pits do not need to be monitored through workers, a large amount of manpower is saved, meanwhile, a large amount of time is saved, meanwhile, the trend that the foundation pits collapse can be found in time, the foundation pits can be remedied in time, secondary excavation is not needed, and then the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit monitoring, in particular to an early warning device. Background Art

[0002] Foundation pit monitoring is an important part of foundation pit construction. It refers to the observation and analysis of the changes in the rock and soil properties of the foundation pit, the displacement of the support structure and the surrounding environmental conditions during the foundation pit excavation and underground engineering construction process. The monitoring results are fed back in a timely manner to predict the deformation and stable state that will be caused after further construction. According to the prediction, the degree of impact of the construction on the surrounding environment is determined to guide the design and construction and realize the so-called information construction. In the process of foundation pit monitoring, commonly used monitoring items are horizontal displacement monitoring, tilt monitoring, crack monitoring, etc. However, foundation pit monitoring requires professionals to use professional equipment for measurement. The equipment is complex and bulky, highly professional, and cannot be monitored on a regular basis.

[0003] Since construction sites are often large and there are multiple foundation pits on site, relying solely on staff to monitor these foundation pits not only requires a lot of manpower, but also wastes a lot of time. At the same time, the staff may not be able to detect foundation pit collapse in time, which will also lead to the need for subsequent excavation, thereby increasing costs. Utility Model Content

[0004] In view of the above-mentioned existing problems that since the construction site is often large and there are multiple foundation pits on site, relying solely on staff to monitor these foundation pits not only requires a large amount of manpower, but also wastes a lot of time. At the same time, the staff may not be able to discover the collapse of the foundation pit in time, which will also lead to the need for subsequent excavation, thereby increasing the cost, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide an early warning device, the purpose of which is to solve the problem that since the construction site is often very large and there are multiple foundation pits on site, it takes a lot of manpower and a lot of time to monitor these foundation pits by the staff alone. At the same time, the staff may not be able to discover the collapse of the foundation pit in time, which will also lead to the need for subsequent excavation, thereby increasing the cost.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: an early warning device, comprising a fixed plate, an alarm is fixedly provided on the top of the fixed plate, a motor is fixedly provided on the top of the fixed plate, the output end of the motor is connected to a threaded rod for transmission, a first bevel gear is fixedly provided on the threaded rod, the first bevel gear is correspondingly meshed with second bevel gears on both sides, a screw rod is fixedly provided on one side of the second bevel gear, a guide seat is fixedly provided on the bottom of the fixed plate, the screw rod is threadedly connected to a spiral column, a side plate is fixedly provided at one end of the spiral column, a guide shaft passes through the inside of the side plate, a top plate is fixedly provided at one end of the guide shaft, the guide shaft passes through the inside of a spring, a connecting contact is fixedly provided on one side of the side plate, and a U-shaped plate is fixedly provided on one side of the top plate. There is no need for staff to monitor these foundation pits, which not only saves a lot of manpower but also saves a lot of time.

[0007] As a preferred solution of the early warning device described in the utility model, wherein: a plurality of first ground cones are fixedly provided on one side of the top plate, a circular limit plate is fixedly provided on the other end of the guide shaft, the screw rod is connected to the guide seat through a bearing, and the top plate is made to be close to the side wall of the foundation pit through the first ground cones.

[0008] As a preferred solution of the early warning device described in the utility model, the spiral column is arranged inside the guide seat, and the spring is arranged between the side plate and the top plate.

[0009] As a preferred solution of the early warning device described in the utility model, wherein: a circular slide is provided on the threaded rod, and first hinges are respectively provided on both sides of the circular slide, the first hinge is hingedly connected to the connecting rod, one end of the connecting rod is hingedly connected to the second hinge, and a support plate is fixedly provided on one side of the second hinge, one end of the support plate is hingedly connected to the bottom plate, and the side wall of the foundation pit is supported by the two support plates, thereby slowing down the collapse of the foundation pit.

[0010] As a preferred solution of the early warning device described in the utility model, wherein: a slider is fixedly provided on the circular slide, the slider is arranged inside a slide groove, the slide groove is arranged on a vertical plate, and a plurality of second ground cones are provided on one side of the support plate, and the circular slide can be guided by the slider and the slide groove.

[0011] As a preferred solution of the early warning device described in the utility model, the threaded rod is connected to the circular slide through a screw bearing, the bottom end of the threaded rod is connected to the base plate through a bearing, and the vertical plate is arranged between the fixed plate and the base plate.

[0012] As a preferred solution of the early warning device described in the utility model, wherein: a transverse plate is fixedly provided on one side of the vertical plate, and the threaded rod is connected to the transverse plate through a bearing.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model drives the first bevel gear on the threaded rod to rotate through the forward rotation of the motor, and the first bevel gear drives the screw to rotate through the second bevel gear. The screw drives the spiral column through the thread to push the side plate in the direction away from the motor, and the side plate pushes the top plate through the guide shaft and the spring. The top plate drives the first ground cone to be inserted into the soil. When the soil in the foundation pit is displaced, the soil will push the top plate to move toward the side plate, so that the top plate pushes the U-shaped plate to contact with the two connecting contacts, thereby causing the alarm to sound. There is no need for staff to monitor these foundation pits, which not only saves a lot of manpower, but also saves a lot of time. At the same time, it can timely discover the tendency of the foundation pit to collapse, and the foundation pit can be remedied in time without the need for further excavation, thereby reducing costs.

[0015] 2. The utility model drives the circular slide to move downward through the threaded rod. The circular slide pushes the supporting plate to rotate around one end of the bottom plate through the first hinge, the connecting rod and the second hinge. The supporting plate drives a plurality of second ground cones to be inserted into the soil of the foundation pit. The side walls of the foundation pit are supported by the two supporting plates, thereby slowing down the collapse of the foundation pit, so that the staff can carry out remedial treatment on the foundation pit in time, thereby reducing the workload of remediation.

[0016] 3. The utility model drives the first bevel gear on the threaded rod to rotate by reverse rotation of the motor, and the first bevel gear drives the screw to rotate through the second bevel gear, and the screw drives the side plates on the spiral column to move toward the direction close to the motor, thereby retracting the top plate and the side plates, and the threaded rod drives the circular slide to move upward, and the circular slide drives the support plate to rotate around the bottom plate toward the direction close to the threaded rod through the first hinge, the connecting rod and the second hinge, thereby retracting the two support plates, thereby reducing the occupied space, facilitating the transportation of the device, and saving transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a three-dimensional schematic diagram of the overall structure of an early warning device.

[0019] Figure 2 The utility model is a schematic diagram of the early warning structure of an early warning device.

[0020] Figure 3The utility model is a schematic cross-sectional structure diagram of an early warning device.

[0021] Figure 4 The utility model is a schematic diagram of a supporting structure of an early warning device.

[0022] Description of reference numerals:

[0023] 1. Fixed plate; 2. Alarm; 3. Motor; 4. Threaded rod; 5. First bevel gear; 6. Second bevel gear; 7. Screw; 8. Guide seat; 9. Screw column; 10. Side plate; 11. Guide shaft; 12. Top plate; 13. Spring; 14. Connecting contact; 15. U-shaped plate; 16. First ground cone; 17. Circular limit plate; 18. Circular slide; 19. First hinge; 20. Connecting rod; 21. Second hinge; 22. Support plate; 23. Bottom plate; 24. Slider; 25. Slide; 26. Vertical plate; 27. Second ground cone; 28. Horizontal plate. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] Reference Figure 1-3 , which is the first embodiment of the utility model, provides an early warning device, which includes a fixed plate 1, an alarm 2 is fixedly arranged on the top of the fixed plate 1, a motor 3 is fixedly arranged on the top of the fixed plate 1, the output end of the motor 3 is connected to a threaded rod 4 for transmission, a first bevel gear 5 is fixedly arranged on the threaded rod 4, the first bevel gear 5 is correspondingly meshed with second bevel gears 6 on both sides, a screw rod 7 is fixedly arranged on one side of the second bevel gear 6, a guide seat 8 is fixedly arranged at the bottom of the fixed plate 1, the screw rod 7 is threadedly connected to a spiral column 9, a side plate 10 is fixedly arranged at one end of the spiral column 9, a guide shaft 11 passes through the inside of the side plate 10, a top plate 12 is fixedly arranged at one end of the guide shaft 11, the guide shaft 11 passes through the inside of the spring 13, a connecting contact 14 is fixedly arranged on one side of the side plate 10, and a U-shaped plate 15 is fixedly arranged on one side of the top plate 12.

[0027] A plurality of first ground cones 16 are fixedly provided on one side of the top plate 12, a circular limit plate 17 is fixedly provided on the other end of the guide shaft 11, and the screw rod 7 is connected to the guide seat 8 through a bearing.

[0028] The spiral column 9 is arranged inside the guide seat 8 , and the spring 13 is arranged between the side plate 10 and the top plate 12 .

[0029] During use, the staff fixes the early warning device in the foundation pit, and then starts the motor 3. The motor 3 rotates forward to drive the first bevel gear 5 on the threaded rod 4 to rotate. The first bevel gear 5 drives the screw rod 7 to rotate through the second bevel gear 6. The screw rod 7 drives the spiral column 9 to push the side plate 10 in the direction away from the motor 3 through the thread. The side plate 10 pushes the top plate 12 through the guide shaft 11 and the spring 13. The top plate 12 drives the first ground cone 16 to be inserted into the soil. The guide shaft 11 is limited by the circular limit plate 17. When the soil in the foundation pit is displaced, the soil will push the top plate 12 to move toward the side plate 10, so that the top plate 12 pushes the U-shaped plate 15 to contact with the two connecting contacts 14, thereby causing the alarm 2 to sound an alarm. There is no need for staff to monitor these foundation pits, which not only saves a lot of manpower, but also saves a lot of time. At the same time, it can timely discover the tendency of the foundation pit to collapse, and the foundation pit can be remedied in time without the need for further excavation, thereby reducing costs.

[0030] Example 2

[0031] Reference Figure 1-4 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a circular slide 18 is provided on the threaded rod 4, and first hinges 19 are provided on both sides of the circular slide 18. The first hinge 19 is hingedly connected to a connecting rod 20, and one end of the connecting rod 20 is hingedly connected to a second hinge 21. A supporting plate 22 is fixedly provided on one side of the second hinge 21, and one end of the supporting plate 22 is hingedly connected to a bottom plate 23.

[0032] A slider 24 is fixedly provided on the circular slide 18 . The slider 24 is arranged inside a slide groove 25 . The slide groove 25 is arranged on a vertical plate 26 . A plurality of second ground cones 27 are arranged on one side of the supporting plate 22 .

[0033] The threaded rod 4 is connected to the circular slide 18 via a screw bearing, the bottom end of the threaded rod 4 is connected to the bottom plate 23 via a bearing, and the vertical plate 26 is arranged between the fixed plate 1 and the bottom plate 23 .

[0034] A transverse plate 28 is fixedly provided on one side of the vertical plate 26 , and the threaded rod 4 is connected to the transverse plate 28 via a bearing.

[0035] During use, the motor 2 rotates forward to drive the threaded rod 4 to rotate, and the threaded rod 4 drives the circular slide 18 to move downward along the slide groove 25 on the vertical plate 26 through the slider 24. The circular slide 18 pushes the support plate 22 to rotate around one end of the bottom plate 23 through the first hinge 19, the connecting rod 20 and the second hinge 21. The support plate 22 drives a plurality of second ground cones 27 to be inserted into the soil of the foundation pit. The side walls of the foundation pit are supported by the two support plates 22, thereby slowing down the collapse of the foundation pit, so that the staff can remediate the foundation pit in time, thereby reducing the workload of remediation. At the same time, the motor 3 is reversed , driving the first bevel gear 5 on the threaded rod 4 to rotate, the first bevel gear 5 drives the screw rod 7 to rotate through the second bevel gear 6, the screw rod 7 drives the side plate 10 on the spiral column 9 to move in the direction close to the motor 3, and then the top plate 12 and the side plate 10 are retracted, the threaded rod 4 drives the circular slide 18 to move upward, the circular slide 18 drives the support plate 22 to rotate around the bottom plate 23 toward the threaded rod 4 through the first hinge 19, the connecting rod 20 and the second hinge 21, and then the two support plates 22 are retracted, thereby reducing the occupied space, facilitating the transportation of the device, and saving transportation costs.

[0036] The remaining structures are the same as those of Example 1.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An early warning device, comprising a fixed plate (1), an alarm (2) being fixedly provided on the top of the fixed plate (1), characterized in that: A motor (3) is fixedly arranged on the top of the fixed plate (1), and the output end of the motor (3) is transmission-connected to a threaded rod (4), a first bevel gear (5) is fixedly arranged on the threaded rod (4), and the first bevel gear (5) is correspondingly meshed with second bevel gears (6) on both sides, and a screw rod (7) is fixedly arranged on one side of the second bevel gear (6), a guide seat (8) is fixedly arranged on the bottom of the fixed plate (1), the screw rod (7) is threadedly connected to a spiral column (9), a side plate (10) is fixedly arranged on one end of the spiral column (9), a guide shaft (11) passes through the inside of the side plate (10), a top plate (12) is fixedly arranged on one end of the guide shaft (11), and the guide shaft (11) passes through the inside of a spring (13), a connecting contact (14) is fixedly arranged on one side of the side plate (10), and a U-shaped plate (15) is fixedly arranged on one side of the top plate (12).

2. The early warning device according to claim 1, characterized in that: A plurality of first ground cones (16) are fixedly provided on one side of the top plate (12), a circular limit plate (17) is fixedly provided on the other end of the guide shaft (11), and the screw rod (7) is connected to the guide seat (8) via a bearing.

3. An early warning device according to claim 2, characterized in that: The spiral column (9) is arranged inside the guide seat (8), and the spring (13) is arranged between the side plate (10) and the top plate (12).

4. The early warning device according to claim 3, characterized in that: A circular slide (18) is provided on the threaded rod (4), and first hinges (19) are provided on both sides of the circular slide (18), the first hinge (19) is hingedly connected to a connecting rod (20), one end of the connecting rod (20) is hingedly connected to a second hinge (21), one side of the second hinge (21) is fixedly provided with a supporting plate (22), and one end of the supporting plate (22) is hingedly connected to a bottom plate (23).

5. The early warning device according to claim 4, characterized in that: A sliding block (24) is fixedly provided on the circular sliding platform (18), the sliding block (24) is arranged inside a sliding groove (25), the sliding groove (25) is arranged on a vertical plate (26), and a plurality of second ground cones (27) are provided on one side of the supporting plate (22).

6. The early warning device according to claim 5, characterized in that: The threaded rod (4) is connected to the circular slide (18) via a screw bearing, the bottom end of the threaded rod (4) is connected to the base plate (23) via a bearing, and the vertical plate (26) is arranged between the fixed plate (1) and the base plate (23).

7. The early warning device according to claim 6, characterized in that: A transverse plate (28) is fixedly provided on one side of the vertical plate (26), and the threaded rod (4) is connected to the transverse plate (28) via a bearing.

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