Deep foundation pit monitoring device

Abstract

The utility model relates to the technical field of foundation pit monitoring, and discloses a deep foundation pit monitoring device which comprises a telescopic rod, two ends of the telescopic rod are fixedly connected with a first supporting plate and a second supporting plate respectively, a motor is fixedly installed on a first connecting plate, an output shaft of the motor is fixedly connected with a main shaft rod, and the main shaft rod is fixedly sleeved with a pair of driving wheels. A pair of transmission belts are wound on the driving wheel, the winding directions of the pair of transmission belts are opposite, any transmission belt is provided with a monitoring camera, driven wheels are wound at the ends, away from the driving wheel, of the pair of transmission belts correspondingly, the driven wheels are fixedly connected with auxiliary shaft rods, the auxiliary shaft rods are rotationally connected with second connecting plates, and the second connecting plates are fixedly connected to the bottom face of the second supporting plate; according to the utility model, the monitoring camera can be driven by the transmission belt to reciprocate along the upper part of the deep foundation pit, so that the position of the monitoring camera can be adjusted, manual operation is not needed, and the device can be applied to the large-size deep foundation pit.

Description

Technical Field

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

[0002] A deep foundation pit refers to an excavation depth of more than 5 meters (including 5 meters) or a basement with more than three floors (including three floors), or a project with a depth of less than 5 meters but particularly complex geological conditions, surrounding environment and underground pipelines.

[0003] Foundation pit monitoring is an important part of foundation pit construction. It refers to various observations and monitoring of changes in foundation pit rock and soil properties, support structure displacement and surrounding environmental conditions during foundation pit excavation and underground engineering construction.

[0004] An existing Chinese patent discloses a deep foundation pit monitoring device CN219430842U. By providing an adjustment plate and a second sliding block, the camera can be reciprocated in the horizontal direction, thereby increasing the camera monitoring range and realizing the deflection of the camera, so that the camera can comprehensively monitor the foundation pit conditions. However, the existing technology still has some technical defects. For example, the adjustment method of the camera is only through manual turning of the sliding block. When the plane size of the foundation pit is large and the depth is deep, it is inconvenient for workers to contact the second sliding block, so it is impossible to conveniently adjust the position of the camera manually. Utility Model Content

[0005] The utility model aims to provide a deep foundation pit monitoring device, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a deep foundation pit monitoring device, including:

[0007] A telescopic rod, wherein both ends of the telescopic rod are respectively fixedly connected to a first support plate and a second support plate, and the first support plate and the second support plate are both rotatably connected to a vertically arranged support frame;

[0008] The motor is fixedly mounted on the first connecting plate, the first connecting plate is fixedly connected to the bottom surface of the first supporting plate, the output shaft of the motor is fixedly connected to a main shaft rod, a pair of driving wheels are fixedly sleeved on the main shaft rod, a transmission belt is wound on the driving wheel, a pair of the transmission belts are wound in opposite directions, a monitoring camera is arranged on any of the transmission belts, a pair of the transmission belts are respectively wound with driven wheels at one end away from the driving wheel, the driven wheels are fixedly connected to a secondary shaft rod, the secondary shaft rod is rotatably connected to a second connecting plate, the second connecting plate is fixedly connected to the bottom surface of the second supporting plate, the pair of the secondary shaft rods are detachably connected by a limiting assembly, and a torsion assembly is arranged between the secondary shaft rod and the second connecting plate.

[0009] Optionally, the limit assembly includes two rectangular grooves, which are respectively opened on a pair of opposite end faces of the secondary shaft rods, and a rectangular slider is slidably fitted in any of the rectangular grooves, and one end of the rectangular slider extends out of the rectangular groove and is plugged into the other rectangular groove.

[0010] Optionally, the limiting assembly further includes an anode magnetic sheet and a cathode magnetic sheet that can be attracted to each other, and the anode magnetic sheet and the cathode magnetic sheet are respectively fixed to the protruding end of the rectangular slider and in the rectangular groove away from the rectangular slider.

[0011] Optionally, the torsion assembly includes a fixed shell and a torsion rod, the fixed shell is fixedly connected to the second connecting plate, the torsion rod is fixedly connected to the secondary shaft and is coaxial with the secondary shaft, a first groove is provided in the fixed shell, the torsion rod is rotatably fitted in the first groove, a plurality of second grooves are circumferentially provided on the side wall of the first groove, one end of a spring is fixedly connected to the second groove, an arc head is fixedly connected to the other end of the spring, and an arc groove for abutting against the plurality of arc heads is circumferentially provided on the side wall of the torsion rod.

[0012] Optionally, the surveillance camera is fixedly mounted on a third connecting plate, and the third connecting plate is fixedly connected to the transmission belt via a plurality of pins.

[0013] Optionally, a fourth connecting plate is provided at the bottom end of the supporting leg of the supporting frame, and a plurality of ground nails are provided on the fourth connecting plate.

[0014] Optionally, the support frame is a tripod.

[0015] Optionally, the telescopic rod is a multi-stage telescopic rod.

[0016] The utility model discloses the following technical effects: by fixing the first support plate and the support frame below it on one side of the deep foundation pit, and then pulling the second support plate to extend the telescopic rod, and at the same time the driven wheel on the secondary shaft rod is automatically unwound, so that the transmission belt is extended, until the spacing between the first support plate and the second support plate adapts to the plane size of the deep foundation pit, and the second support plate and the support frame below it are fixed on one side of the deep foundation pit, and then the two secondary shaft rods are connected as a whole through a limit assembly, and the main shaft rod is driven by a motor to rotate, so that a pair of driving wheels rotate, because the winding directions of the pair of transmission belts are opposite, the forward and reverse rotation of the motor 5 can be controlled, and the pair of driving wheels and the pair of driven wheels cooperate with each other so that the transmission belt drives the monitoring camera to reciprocate along the top of the deep foundation pit, and then the position of the monitoring camera is adjusted without manual operation, and it can be adapted to large-size deep foundation pit applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0020] Figure 3 This is a schematic diagram of the connection structure of the driving wheel, the transmission belt and the driven wheel of the utility model;

[0021] Figure 4 It is an exploded view of the countershaft rod, driven wheel, fixed housing and torsion bar of the utility model.

[0022] In the figure: 1. telescopic rod; 2. first support plate; 3. second support plate; 4. support frame; 5. motor; 6. first connecting plate; 7. main shaft; 8. driving wheel; 9. transmission belt; 10. monitoring camera; 11. driven wheel; 12. secondary shaft; 13. second connecting plate; 14. rectangular groove; 15. rectangular slider; 16. anode magnetic sheet; 17. cathode magnetic sheet; 18. fixed shell; 19. torsion bar; 20. first groove; 21. second groove; 22. spring; 23. arc head; 24. arc groove; 25. third connecting plate; 26. pin; 27. fourth connecting plate; 28. ground nail. DETAILED DESCRIPTION

[0023] 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.

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

[0025] Reference Figure 1-Figure 4 The utility model provides a deep foundation pit monitoring device, comprising:

[0026] A telescopic rod 1, both ends of which are fixedly connected to a first support plate 2 and a second support plate 3, and the first support plate 2 and the second support plate 3 are both rotatably connected to a vertically arranged support frame 4;

[0027] Motor 5, motor 5 is fixedly mounted on a first connecting plate 6, the first connecting plate 6 is fixedly connected to the bottom surface of the first supporting plate 2, the output shaft of the motor 5 is fixedly connected to a main shaft rod 7, a pair of driving wheels 8 are fixedly sleeved on the main shaft rod 7, a transmission belt 9 is wound on the driving wheel 8, a pair of transmission belts 9 are wound in opposite directions, a monitoring camera 10 is arranged on any transmission belt 9, a pair of transmission belts 9 are respectively wound with driven wheels 11 at one end away from the driving wheel 8, the driven wheel 11 is fixedly connected to a secondary shaft rod 12, the secondary shaft rod 12 is rotatably connected to a second connecting plate 13, the second connecting plate 13 is fixedly connected to the bottom surface of the second supporting plate 3, a pair of secondary shaft rods 12 are detachably connected through a limit assembly, and a torque assembly is arranged between the secondary shaft rod 12 and the second connecting plate 13.

[0028] By fixing the first support plate 2 and the support frame 4 below it on one side of the deep foundation pit, and then pulling the second support plate 3 to extend the telescopic rod 1, the driven wheel 11 on the secondary shaft rod 12 is automatically unwound, so that the transmission belt 9 is extended until the spacing between the first support plate 2 and the second support plate 3 adapts to the plane size of the deep foundation pit, and the second support plate 3 and the support frame 4 below it are fixed on one side of the deep foundation pit, and then the two secondary shaft rods 12 are connected as a whole through the limit assembly, and the main shaft rod 7 is driven by the motor 5 to rotate, so that the pair of driving wheels 8 rotate. Since the winding directions of the pair of transmission belts 9 are opposite, the forward and reverse rotation of the motor 5 can be controlled, and the pair of driving wheels 8 and the pair of driven wheels 11 cooperate with each other so that the transmission belt 9 drives the monitoring camera 10 to reciprocate along the top of the deep foundation pit, thereby adjusting the position of the monitoring camera 10 without manual operation, which can be adapted to large-size deep foundation pit applications.

[0029] In addition, by providing a torsion assembly between the secondary shaft 12 and the second connecting plate 13, the rotation of the driven wheel 11 can be limited by the torsion assembly, that is, when the driven wheel 11 is not subjected to force, the transmission belt 9 can maintain tension, thereby preventing the transmission belt 9 from loosening due to the weight of the surveillance camera 10.

[0030] According to a further optimization scheme, the limit assembly includes two rectangular grooves 14, which are respectively opened on the opposite end faces of a pair of secondary shafts 12. A rectangular slider 15 is slidably fitted in any rectangular groove 14, and one end of the rectangular slider 15 extends out of the rectangular groove 14 and is plugged into the other rectangular groove 14.

[0031] By inserting the rectangular slider 15 into another rectangular groove 14, the two secondary shafts 12 can be connected as one, that is, the two secondary shafts 12 keep rotating in the same direction, so that the transmission belt 9 is wound forwards and reversely when the motor 5 rotates forwards and reverses.

[0032] As a further optimization scheme, the limit assembly also includes an anode magnetic sheet 16 and a cathode magnetic sheet 17 which can attract each other. The anode magnetic sheet 16 and the cathode magnetic sheet 17 are respectively fixed to the protruding end of the rectangular slider 15 and the rectangular groove 14 away from the rectangular slider 15.

[0033] When the rectangular slider 15 is inserted into another rectangular groove 14 , the anode magnetic sheet 16 and the cathode magnetic sheet 17 are attracted to each other, thereby improving the connection stability of the two secondary shafts 12 .

[0034] A further optimized solution is provided, in which the torsion assembly includes a fixed shell 18 and a torsion rod 19. The fixed shell 18 is fixedly connected to the second connecting plate 13. The torsion rod 19 is fixedly connected to the secondary shaft 12 and is coaxial with the secondary shaft 12. A first groove 20 is provided in the fixed shell 18. The torsion rod 19 is rotatably fitted in the first groove 20. A plurality of second grooves 21 are circumferentially provided on the side wall of the first groove 20. One end of a spring 22 is fixedly connected to the second groove 21. An arc head 23 is fixedly connected to the other end of the spring 22. An arc groove 24 for abutting against the plurality of arc heads 23 is circumferentially provided on the side wall of the torsion rod 19.

[0035] The spring 22 provides elastic support to the arc head 23 , so that the torsion between the fixed shell 18 and the torsion bar 19 is increased by the cooperation between the multiple arc heads 23 and the multiple arc grooves 24 , thereby increasing the torsion of the secondary shaft 12 .

[0036] According to a further optimized solution, the monitoring camera 10 is fixedly mounted on the third connecting plate 25 , and the third connecting plate 25 is fixedly connected to the transmission belt 9 via a plurality of pins 26 .

[0037] To further optimize the solution, a fourth connecting plate 27 is provided at the bottom end of the supporting leg of the supporting frame 4 , and a plurality of ground nails 28 are provided on the fourth connecting plate 27 to improve the stability of the supporting frame 4 .

[0038] According to a further optimization scheme, the support frame 4 is a tripod, which further improves the stability of the support frame 4.

[0039] According to a further optimized solution, the telescopic rod 1 is a multi-stage telescopic rod, which increases the extension length of the first support plate 2 and the second support plate 3.

[0040] Directions:

[0041] First, the first support plate 2 is fixed on one side of the deep foundation pit, and the second support plate 3 is pulled to extend to a suitable position according to the size of the deep foundation pit. When the second support plate 3 is pulled, the motor 5 fixes the main shaft 7, and the two secondary shafts 12 are in a separated state. Due to the artificial pulling force, the driven wheels 11 on the two secondary shafts 12 can be automatically unwound, so that the transmission belt 9 is extended, and the transmission belt 9 always maintains tension, and then the second support plate 3 is fixed on the other side of the deep foundation pit, so that the monitoring camera 10 is above the deep foundation pit;

[0042] Then insert the rectangular slider 15 into another rectangular groove 14, and make the anode magnetic sheet 16 and the cathode magnetic sheet 17 attract each other, so that the two secondary shafts 12 are integrated, and the main shaft 7 is driven by the motor 5 to rotate, so that a pair of driving wheels 8 rotate in the same direction. When the main shaft 7 rotates forward and the driving wheel 8 reels the transmission belt 9, the other driving wheel 8 is in the unwinding state. At the same time, the driven wheel 11 connected to the driving wheel 8 in the rewinding state is in the unwinding rotation and drives the secondary shaft 12 to rotate, so that the pair of secondary shafts 12 rotate in the same direction. When the pair of secondary shafts 12 rotate in the same direction, the other driven wheel 11 is in the rewinding state and cooperates with the driving wheel 8 in the unwinding state. In this way, the transmission belt 9 drives the surveillance camera 10 to produce displacement. Conversely, the motor 5 reverses, and the principle is the same as above.

[0043] When the monitoring device needs to be folded up, the distance between the first support plate 2 and the second support plate 3 is reset, the transmission belt 9 becomes loose, and the rectangular slider 15 is separated from the other rectangular groove 14. The motor 5 fixes the main shaft 7, and the transmission belt 9 can be wound up by rotating the driven wheels 11 respectively.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A deep foundation pit monitoring device, characterized in that: include: A telescopic rod (1), wherein two ends of the telescopic rod (1) are respectively fixedly connected to a first support plate (2) and a second support plate (3), and the first support plate (2) and the second support plate (3) are both rotatably connected to a vertically arranged support frame (4); A motor (5), wherein the motor (5) is fixedly mounted on a first connecting plate (6), the first connecting plate (6) is fixedly connected to the bottom surface of the first supporting plate (2), the output shaft of the motor (5) is fixedly connected to a main shaft rod (7), a pair of driving wheels (8) are fixedly sleeved on the main shaft rod (7), a transmission belt (9) is wound on the driving wheel (8), the pair of transmission belts (9) are wound in opposite directions, a monitoring camera (10) is arranged on any of the transmission belts (9), a pair of driven wheels (11) are respectively wound around one end of the pair of transmission belts (9) away from the driving wheel (8), the driven wheel (11) is fixedly connected to a secondary shaft rod (12), the secondary shaft rod (12) is rotatably connected to a second connecting plate (13), the second connecting plate (13) is fixedly connected to the bottom surface of the second supporting plate (3), the pair of secondary shaft rods (12) are detachably connected through a limit assembly, and a torque assembly is arranged between the secondary shaft rod (12) and the second connecting plate (13).

2. The deep foundation pit monitoring device according to claim 1, characterized in that: The limiting assembly comprises two rectangular grooves (14), and the two rectangular grooves (14) are respectively opened on the opposite end faces of a pair of secondary shafts (12). A rectangular slider (15) is slidably fitted in any of the rectangular grooves (14), and one end of the rectangular slider (15) extends out of the rectangular groove (14) and is plugged into the other rectangular groove (14).

3. The deep foundation pit monitoring device according to claim 2, characterized in that: The limit assembly also includes an anode magnetic sheet (16) and a cathode magnetic sheet (17) that can be attracted to each other. The anode magnetic sheet (16) and the cathode magnetic sheet (17) are respectively fixed to the protruding end of the rectangular slider (15) and the rectangular groove (14) away from the rectangular slider (15).

4. The deep foundation pit monitoring device according to claim 1, characterized in that: The torsion assembly comprises a fixed shell (18) and a torsion rod (19), wherein the fixed shell (18) is fixedly connected to the second connecting plate (13), and the torsion rod (19) is fixedly connected to the secondary shaft (12) and is coaxial with the secondary shaft (12). A first groove (20) is provided in the fixed shell (18), and the torsion rod (19) is rotatably engaged in the first groove (20). A plurality of second grooves (21) are circumferentially provided on the side wall of the first groove (20), one end of a spring (22) is fixedly connected to the second groove (21), and an arc head (23) is fixedly connected to the other end of the spring (22), and an arc groove (24) for abutting against the plurality of arc heads (23) is circumferentially provided on the side wall of the torsion rod (19).

5. The deep foundation pit monitoring device according to claim 1, characterized in that: The monitoring camera (10) is fixedly mounted on a third connecting plate (25), and the third connecting plate (25) is fixedly connected to the transmission belt (9) via a plurality of pins (26).

6. The deep foundation pit monitoring device according to claim 1, characterized in that: A fourth connecting plate (27) is provided at the bottom end of the supporting leg of the supporting frame (4), and a plurality of ground nails (28) are provided on the fourth connecting plate (27).

7. The deep foundation pit monitoring device according to claim 1, characterized in that: The support frame (4) is a tripod.

8. The deep foundation pit monitoring device according to claim 1, characterized in that: The telescopic rod (1) is a multi-stage telescopic rod.

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