Foundation pit monitoring device

Abstract

The utility model relates to the technical field of foundation pit measurement, in particular to a foundation pit monitoring device which comprises a base, a rope is arranged at the top of the base, and a camera device is arranged at the bottom end of the rope through a buffer mechanism. The buffering mechanism comprises a top plate, a damper, a bottom plate, a spring, a balancing weight, a sliding groove, a sliding block, a vertical rod and a connecting rod. The top of the top plate is fixedly connected with the bottom end of the rope, the four dampers and the four springs are fixedly connected to the four corners of the bottom of the top plate respectively, the bottom ends of the four dampers are fixedly connected with the four corners of the top of the bottom plate respectively, the four springs are arranged outside the four dampers in a sleeving mode respectively, and the four springs are fixedly connected with the bottom of the bottom plate respectively. Through mutual cooperation of internal components of the buffer mechanism, when the bottom plate and the camera device fall to the bottom of the foundation pit, shock absorption is performed on impact force generated by collision with the bottom of the foundation pit, and therefore the camera device is prevented from being damaged by the impact force generated by collision.

Description

Technical Field

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

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings on site, and waterproofing and drainage work should be done well. If the excavation is not deep, the side slope method can be used to make the earth slope stable. The slope size is determined according to relevant construction regulations. If the excavation is deeper and there are buildings nearby, the foundation pit wall support method and shotcrete wall protection method can be used. Large foundation pits can even use underground continuous walls and column-type bored pile interlocking methods to prevent the outer soil layer from collapsing. If there is no impact on nearby buildings, the well point method can be used to lower the groundwater level, and slope open excavation can be used. In cold areas, natural cold air freezing method can be used for excavation, etc. After the foundation pit is excavated, its depth needs to be measured using a measuring device to facilitate the staff to master the data for later construction.

[0003] After searching, the Chinese patent publication number CN214276770U discloses a foundation pit depth measuring device for foundation pit monitoring, including a bottom plate, a support leg connected to the bottom of the bottom plate, a universal wheel connected to the bottom of the support leg, a stop mechanism connected to the bottom of the bottom plate, a motor connected to the bottom plate, a winding roller connected to the output end of the motor, a battery connected to the bottom plate, the motor and the battery are electrically connected, a connecting column connected to the bottom plate, a mounting seat connected to the connecting column, a pulley rotatably connected in the mounting seat, , an electric push rod is connected to one side of the connecting column, and the electric push rod is electrically connected to the battery. The extended end of the electric push rod is connected to a mounting frame, and the mounting frame is rotatably connected to pulley 2. A measuring ruler is wound around the winding roller, and the measuring ruler passes around pulley 1 and pulley 2 in sequence and is connected to a connecting rope. A weight is connected to the connecting rope, and an alarm is connected to the weight. A pressure switch is connected below the weight, and the pressure switch is electrically connected to the alarm. A control box is connected to the bottom plate, and a number of control switches are connected to the control box. The above patent has the following shortcomings: Although the patent can detect the inside of the foundation pit through a camera device, there is no protection for the camera device. Therefore, the camera device may collide when it falls into the bottom of the foundation pit, thereby being damaged and causing property loss. In view of this, we propose a foundation pit monitoring device. Utility Model Content

[0004] The purpose of the utility model is to provide a foundation pit monitoring device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A foundation pit monitoring device comprises a base, a cable is arranged on the top of the base, and a camera device is arranged on the bottom end of the cable through a buffer mechanism;

[0007] The buffer mechanism includes a top plate, a damper, a bottom plate, a spring, a counterweight, a slide groove, a slider, a vertical rod, and a connecting rod;

[0008] The top of the top plate is fixedly connected to the bottom end of the cable, there are four dampers and four springs, the four dampers are respectively fixedly connected to the four corners of the bottom of the top plate, the bottom ends of the four dampers are respectively fixedly connected to the four corners of the top of the bottom plate, the four springs are respectively sleeved on the outside of the four dampers, the top end of the spring is fixedly connected to the top plate, and the bottom end of the spring is fixedly connected to the bottom plate. When the bottom plate falls to the bottom of the foundation pit, the impact force generated during contact is reduced by the damper.

[0009] Preferably, a counterweight is fixedly connected to the bottom of the base plate, and the camera device is fixedly connected to the top of the top plate, and the counterweight is provided so that the cable can remain vertical when rising and falling.

[0010] Preferably, the slide groove is opened on the front side of the top plate, the number of the sliders is two, the two sliders are slidably connected to the front side of the slide groove, the vertical rod is fixedly connected to the top of the bottom plate, and the top end of the vertical rod is hinged to the front sides of the two sliders through a connecting rod.

[0011] Preferably, a column is fixedly connected to the top of the base, wheels are provided on both sides of the base, a telescopic mechanism is provided on the top of the column, the telescopic mechanism includes an electric push rod, one end of the electric push rod is fixedly connected to the top of the column, and the electric push rod is provided to drive the cable and the camera device to move horizontally.

[0012] Preferably, a motor is fixedly connected to the top of the base via a bracket, a wire drum is fixedly connected to the back output end of the motor, the other end of the cable away from the camera device is wound around the wire drum, and the cable is retracted and released by setting the wire drum.

[0013] Preferably, the top of the electric push rod is fixedly connected to a first fixed pulley and a second fixed pulley, the lower left corner of the electric push rod is fixedly connected to a third fixed pulley via a pulley frame, and the middle part of the cable is sequentially wound around the first fixed pulley, the second fixed pulley and the third fixed pulley.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Through the mutual cooperation of the internal components of the buffer mechanism, when the base plate and the camera device fall to the bottom of the foundation pit, the impact force generated by the collision with the bottom of the foundation pit is damped, thereby preventing the camera device from being damaged by the impact force generated by the collision.

[0016] Through the cooperation between the electric push rod and the three fixed pulleys, the camera device can be moved horizontally to monitor foundation pits of different widths, thereby improving the flexibility of the device and avoiding the situation where the measurement cannot be made due to the width of the foundation pit being too wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the buffer mechanism area in the utility model;

[0019] Figure 3 It is a schematic diagram of the back structure of the present utility model.

[0020] In the figure: 1. base; 2. cable; 3. buffer mechanism; 4. camera device; 5. column; 6. telescopic mechanism; 7. wheel; 31. top plate; 32. damper; 33. bottom plate; 34. spring; 35. counterweight; 36. slide groove; 37. slider; 38. vertical rod; 39. connecting rod; 61. electric push rod; 62. bracket; 63. motor; 64. wire drum; 65. first fixed pulley; 66. second fixed pulley; 67. pulley frame; 68. third fixed pulley. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0022] like Figure 1-2As shown, a foundation pit monitoring device comprises a base 1, a cable 2 is arranged on the top of the base 1, and a camera 4 is arranged at the bottom of the cable 2 through a buffer mechanism 3; the buffer mechanism 3 comprises a top plate 31, a damper 32, a bottom plate 33, a spring 34, a counterweight 35, a slide 36, a slider 37, a vertical rod 38, and a connecting rod 39; the top of the top plate 31 is fixedly connected to the bottom end of the cable 2, and there are four dampers 32 and springs 34, four dampers 32 are respectively fixedly connected to the four corners of the bottom of the top plate 31, and the bottom ends of the four dampers 32 are respectively fixedly connected to the four corners of the top of the bottom plate 33, and four springs 34 are respectively sleeved on the outside of the four dampers 32, and the top end of the spring 34 is fixedly connected to the top plate 31, and the bottom end of the spring 34 is fixedly connected to the bottom plate 33. When the bottom plate 33 falls to the bottom of the foundation pit, the impact force generated during contact is damped by the damper 32. A counterweight 35 is fixedly connected to the bottom of the bottom plate 33, and the camera device 4 is fixedly connected to the top of the top plate 31. The counterweight 35 is provided to keep the cable 2 vertical when it is raised or lowered. A chute 36 is provided on the front of the top plate 31, and there are two sliders 37, which are slidably connected to the front of the chute 36. A vertical rod 38 is fixedly connected to the top of the bottom plate 33, and the top of the vertical rod 38 is hinged to the front of the two sliders 37 through a connecting rod 39.

[0023] Specifically, through the mutual cooperation of the internal components of the buffer mechanism 3, when the bottom plate 33 and the camera device 4 fall to the bottom of the foundation pit, the impact force generated by the collision with the bottom of the foundation pit is reduced. Embodiment 2

[0024] like Figure 1-3 As shown, a column 5 is fixedly connected to the top of the base 1, wheels 7 are arranged on both sides of the base 1, and a telescopic mechanism 6 is arranged on the top of the column 5. The telescopic mechanism 6 includes an electric push rod 61, one end of which is fixedly connected to the top of the column 5. The electric push rod 61 is arranged to drive the cable 2 and the camera device 4 to move horizontally. A motor 63 is fixedly connected to the top of the base 1 through a bracket 62, and a wire drum 64 is fixedly connected to the back output end of the motor 63, and the other end of the cable 2 away from the camera device 4 is wound on the wire drum 64. The cable 2 is retracted and released by setting the wire drum 64. A first fixed pulley 65 and a second fixed pulley 66 are fixedly connected to the top of the electric push rod 61, and a third fixed pulley 68 is fixedly connected to the lower left corner of the electric push rod 61 through a pulley frame 67. The middle part of the cable 2 is wound on the first fixed pulley 65, the second fixed pulley 66, and the third fixed pulley 68 in sequence.

[0025] Specifically, through the cooperation between the electric push rod 61 and the three fixed pulleys, the camera device 4 can be moved horizontally to monitor foundation pits of different widths.

[0026] The working principle of the utility model is as follows:

[0027] First, turn on the electric push rod 61 to move the cable 2 and the camera device 4 to the top of the foundation pit, and then turn on the motor 63 to drive the wire drum 64 to rotate. The wire drum 64 rotates to unwind the cable 2. While unwinding the cable 2, the buffer mechanism 3 as a whole and the camera device 4 are lowered to the inside of the foundation pit. When the bottom plate 33 falls to the bottom of the foundation pit, the bottom plate 33 moves upward to compress the damper 32. During the compression of the damper 32, the impact force generated by the collision between the bottom plate 33 and the bottom of the foundation pit is buffered and shock-absorbed.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A foundation pit monitoring device, characterized in that: include: A base (1), wherein a rope (2) is arranged on the top of the base (1), and a camera device (4) is arranged on the bottom end of the rope (2) via a buffer mechanism (3); The buffer mechanism (3) comprises a top plate (31), a damper (32), a bottom plate (33), a spring (34), a counterweight (35), a slide groove (36), a slider (37), a vertical rod (38), and a connecting rod (39); The top of the top plate (31) is fixedly connected to the bottom end of the cable (2); the number of the dampers (32) and the springs (34) is four; the four dampers (32) are respectively fixedly connected to the four corners of the bottom of the top plate (31); the bottom ends of the four dampers (32) are respectively fixedly connected to the four corners of the top of the bottom plate (33); the four springs (34) are respectively sleeved on the outside of the four dampers (32); the top ends of the springs (34) are fixedly connected to the top plate (31); and the bottom ends of the springs (34) are fixedly connected to the bottom plate (33).

2. A foundation pit monitoring device according to claim 1, characterized in that: A counterweight (35) is fixedly connected to the bottom of the bottom plate (33), and the camera device (4) is fixedly connected to the top of the top plate (31).

3. A foundation pit monitoring device according to claim 2, characterized in that: The slide groove (36) is opened on the front side of the top plate (31), the number of the sliders (37) is two, the two sliders (37) are slidably connected to the front side of the slide groove (36), the vertical rod (38) is fixedly connected to the top of the bottom plate (33), and the top end of the vertical rod (38) is hinged to the front sides of the two sliders (37) through a connecting rod (39).

4. A foundation pit monitoring device according to claim 1, characterized in that: A column (5) is fixedly connected to the top of the base (1), wheels (7) are provided on both sides of the base (1), a telescopic mechanism (6) is provided on the top of the column (5), and the telescopic mechanism (6) comprises an electric push rod (61), one end of the electric push rod (61) is fixedly connected to the top of the column (5).

5. A foundation pit monitoring device according to claim 4, characterized in that: The top of the base (1) is fixedly connected to a motor (63) via a bracket (62); the rear output end of the motor (63) is fixedly connected to a cable drum (64); and the other end of the cable (2) away from the camera device (4) is wound around the cable drum (64).

6. A foundation pit monitoring device according to claim 5, characterized in that: The top of the electric push rod (61) is fixedly connected to a first fixed pulley (65) and a second fixed pulley (66); the lower left corner of the electric push rod (61) is fixedly connected to a third fixed pulley (68) via a pulley frame (67); and the middle portion of the cable (2) is sequentially wound around the first fixed pulley (65), the second fixed pulley (66), and the third fixed pulley (68).

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