Foundation pit water seepage detection device for intelligent construction site

Abstract

The utility model relates to the technical field of water seepage detection, and discloses a foundation pit water seepage detection device for an intelligent construction site, which comprises a frame body, a water seepage detection device and a water seepage detection device, a movable plate; the buffer mechanism is arranged between the base plate and the movable plate; the two ends of the damper are connected with the base plate and the movable plate respectively so as to consume the vibration energy absorbed by the buffering mechanism; the buffering mechanism comprises a first buffering assembly and a second buffering assembly. The first buffering assembly comprises a telescopic rod set and a first elastic piece. The second buffering assembly comprises a sliding base, a sliding block, a rotating rod and a second elastic piece. According to the foundation pit water seepage detection device for the intelligent construction site, the buffer mechanism absorbs vibration energy, the damper quickly consumes the absorbed vibration energy, and the two aspects are coordinated, so that the device can stably run on an uneven road surface; the first buffer assembly and the second buffer assembly are independent, and a dual damping process protects the detector from being damaged and provides redundancy for the device.

Description

Technical Field

[0001] The utility model relates to the technical field of seepage detection, in particular to a foundation pit seepage detection device for a smart construction site. Background Art

[0002] Foundation pit engineering has the characteristics of complexity, high construction risk, and great construction difficulty. Once an accident occurs, it will cause huge economic losses and serious casualties. Internal seepage in the foundation pit will have a greater impact on the support strength of the foundation pit. A smart construction site is a construction site that realizes digital, intelligent, and simplified management of construction. Detecting seepage in the foundation pit is a necessary step in the foundation pit engineering of a smart construction site.

[0003] In the prior art, the foundation pit seepage detection device moves and works on the construction site. Due to the relatively complex road conditions on the construction site, there are many uneven protrusions or potholes. When the device moves, it will be affected by the potholes, causing the body to vibrate greatly, affecting the detection mechanism in the device, affecting the progress of the detection work, and even damaging the detection mechanism, making it difficult to meet the detection requirements. Summary of the Utility Model

[0004] In view of this, the utility model provides a foundation pit seepage detection device for a smart construction site to solve the problem that the existing foundation pit seepage detection device is greatly affected by the potholes on the ground of the construction site and vibrates, affecting the detection work.

[0005] The utility model provides a foundation pit seepage detection device for a smart construction site, including: a frame body having a base plate; a detection box adapted to detect the seepage condition of the foundation pit; a movable plate spaced from the base plate; a buffer mechanism disposed between the base plate and the movable plate and adapted to absorb vibration energy when the frame body is vibrated; the buffer mechanism includes a first buffer component and a second buffer component; the first buffer component includes: a telescopic rod group with two ends respectively connected to the base plate and the movable plate; a first elastic member with two ends respectively connected to the base plate and the movable plate and disposed around the periphery of the telescopic rod group, adapted to absorb vibration energy by means of elastic deformation of the first elastic member; the second buffer component includes; a sliding seat on which a sliding block is slidably disposed; a rotating rod with two ends respectively rotatably connected to the movable plate and the sliding block; a second elastic member with one end fixed at the sliding seat and the other end connected to the sliding block, adapted to absorb vibration energy by means of elastic deformation of the second elastic member.

[0006] Beneficial effects: by setting a buffer mechanism and a damper, the buffer mechanism can absorb vibration energy when the device is vibrated, and the damper can quickly consume the vibration energy absorbed by the buffer mechanism. The two aspects work together to enable the device to travel smoothly on uneven roads, thereby achieving the purpose of ensuring the smooth progress of foundation pit seepage detection work, and it is highly practical; further, the buffer mechanism has an independently arranged first buffer component and a second buffer component, and a double shock-absorbing process, which can effectively protect the detector in the detection box from damage, and when one of them is accidentally damaged, the other can also work, playing a double insurance effect; specifically, when the device is vibrated, the movable frame descends, on the one hand, it squeezes the first elastic member, so that part of the energy generated by the vibration is absorbed by the first elastic member, and on the other hand, it causes the rotating rod to rotate and move horizontally, thereby squeezing the slider to compress the second elastic member, and another part of the energy generated by the vibration is absorbed by the second elastic member, which plays a role of shock absorption and buffering, and the energy absorbed by the first buffer spring and the second buffer spring will be quickly consumed by the damper, which plays a protective role for the detector.

[0007] In an optional embodiment, it also includes a reeling mechanism, which is connected to the detection box and is suitable for delivering the detection box to the detection position; the reeling mechanism includes: a support plate, fixed to the movable plate; a rotating shaft, rotatably arranged on the support plate; a roller, sleeved on the rotating shaft and rotating with the rotating shaft; a connecting belt, wrapped around the circumference of the roller and connected to the detection box; matching ratchet and pawl, the ratchet is sleeved on the circumference of the rotating shaft, and the pawl is arranged on the support plate with the aid of a third elastic member and a connecting shaft; wherein the reeling mechanism has a fixed state and an unwinding state; in the fixed state, the pawl is engaged with the ratchet wheel to lock the rotating shaft and fix the position of the detection box; in the unwinding state, the pawl is opened and disengaged from the ratchet wheel, the rotating shaft is free, and the rotating shaft drives the roller to rotate, so that the connecting belt is released or reeled, and the detection box is lowered or raised.

[0008] Beneficial effect: By setting up the unwinding mechanism, the height of the detection box can be controlled to adjust, and the height of the detection position can be adaptively adjusted according to the depth of the foundation pit, so that the detection position matches the depth of the foundation pit, so as to achieve the purpose of ensuring the smooth progress of the detection work. It is highly practical, and a single device can be adapted to a variety of foundation pit seepage detection work of different depths, and has strong compatibility; specifically, the ratchet is opened to release the restriction on the rotating shaft, and the rotating shaft can rotate clockwise, and the rotating shaft drives the roller to rotate clockwise. The clockwise rotation of the roller will drive the connecting belt to be released, and the releasing of the connecting belt will drive the detection box to descend. During the landing process, according to the depth of the foundation pit, the length of the connecting belt released is controlled to adapt to the depth of the foundation pit, and the ratchet is released to re-engage it on the ratchet wheel, so that the position of the detection box can be locked, so that the detection work can proceed smoothly.

[0009] In an optional embodiment, the telescopic rod group includes a matching movable rod and a sleeve; the sleeve is fixed to the base plate; a portion of the movable rod is inserted into the sleeve, and the end of the movable rod away from the sleeve is fixed to the movable plate; an annular convex is provided on the periphery of the movable rod, and the annular convex contacts the inner wall of the sleeve so that the movable rod and the sleeve are slidably connected; and an air vent is provided on the periphery of the sleeve.

[0010] In an optional embodiment, the slider includes a connecting block and an extrusion block which are connected to each other; the connecting block is slidably arranged in a sliding groove of the sliding seat, and the rotating rod is rotatably connected to the connecting block; one end of the second elastic member is connected to the extrusion block, and the other end is connected to a stop block fixed at the sliding seat.

[0011] In an optional embodiment, it further includes a damper, both ends of which are respectively connected to the base plate and the movable plate, and is suitable for consuming the vibration energy absorbed by the first elastic member and the second elastic member.

[0012] In an optional embodiment, the detection box includes a shell, a sealing plate and a detector; a plurality of the detectors are arranged in the shell, suitable for respectively detecting the water pressure or flow direction of the seepage water; the sealing plate is detachably installed on the shell with the help of a snap to protect the detector; the shell and the sealing plate are both provided with a water inlet.

[0013] In an optional embodiment, at least two of the first buffer components are spaced apart between the base plate and the movable plate, so as to balance the buffer effect.

[0014] In an optional embodiment, a crank is connected to the rotating shaft, which is suitable for assisting in driving the rotating shaft to rotate.

[0015] In an optional embodiment, the frame is provided with a plurality of wheels, which are suitable for moving the frame on the ground.

[0016] In an optional implementation, the first elastic member and the second elastic member are pressure springs; and the third elastic member is a torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1This is a schematic diagram of the structure of a foundation pit water seepage detection device for a smart construction site according to the utility model;

[0019] Figure 2 It is a schematic structural diagram of another direction of the foundation pit water seepage detection device for smart construction sites of the utility model;

[0020] Figure 3 It is an enlarged schematic diagram of the A part of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the telescopic rod group of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the detection box of the utility model.

[0023] Description of reference numerals:

[0024] 1. Frame; 11. Base plate; 12. Wheel; 2. Detection box; 21. Shell; 22. Closing plate; 23. Detector; 24. Buckle; 25. Water inlet; 3. Movable plate; 4. Buffer mechanism; 5. First buffer assembly; 51. Telescopic rod group; 52. First elastic member; 53. Movable rod; 54. Sleeve; 55. Annular protrusion; 56. Air vent; 6. Second buffer assembly; 61. Sliding seat; 62. Sliding block; 63. Rotating rod; 64. Second elastic member; 65. Connecting block; 66. Extrusion block; 67. Stopper; 7. Unwinding mechanism; 71. Support plate; 72. Rotating shaft; 73. Rotating roller; 74. Connecting belt; 75. Ratchet; 76. Ratchet; 77. Third elastic member; 78. Crank handle; 79. Connecting shaft; 8. Damper. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the related technology, different foundation pits have different depths, and the detection depth of a single foundation pit water seepage detection device used for a smart construction site is fixed, which makes it difficult to accurately detect the water seepage situation in the foundation pit, affecting the progress of the detection work.

[0030] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0031] According to an embodiment of the utility model, a foundation pit water seepage detection device for a smart construction site is provided.

[0032] Combination Figure 1As shown, the foundation pit water seepage detection device for smart construction sites includes: a frame 1 for supporting and bearing; the frame 1 has a substrate 11; a detection box 2 for detecting water seepage in the foundation pit; a movable plate 3, which is arranged on the substrate 11 with the help of a buffer mechanism 4 and is spaced apart from the substrate 11; the buffer mechanism 4 is arranged between the substrate 11 and the movable plate 3, and is used to absorb vibration energy when the frame 1 is vibrated; the buffer mechanism 4 includes a first buffer component 5 and a second buffer component 6; the first buffer component 5 includes: a telescopic rod group 51, whose two ends are respectively connected to the substrate 11 and the movable plate 3; a first elastic member 52, whose two ends are respectively connected to the substrate 11 and the movable plate 3, and are arranged around the periphery of the telescopic rod group 51, and the first buffer component 5 is arranged with the help of the The first elastic member 52 is elastically deformed to absorb part of the vibration energy; the second buffer assembly 6 includes: a slide seat 61, on which a slider 62 is slidably arranged; a rotating rod 63, both ends of which are rotatably connected to the movable plate 3 and the slider 62; a second elastic member 64, one end of which is fixed to the slide seat 61, and the other end is connected to the slider 62, and is used to absorb part of the vibration energy by means of the elastic deformation of the second elastic member 64; the first elastic member 52 and the second elastic member 64 can both be pressure springs, specifically buffer springs, which can withstand pressure and deform to absorb vibration energy by means of elastic deformation; a damper 8, both ends of which are connected to the substrate 11 and the movable plate 3, respectively, and are used to consume the vibration energy absorbed by the first elastic member 52 and the second elastic member 64.

[0033] Combination Figure 2 and Figure 3As shown, the foundation pit water seepage detection device for smart construction sites also includes a reeling mechanism 7 connected to the detection box 2 for delivering the detection box 2 to the detection position; the reeling mechanism 7 includes: a support plate 71 fixed to the movable plate 3; a rotating shaft 72 rotatably arranged at the support plate 71; a roller 73 sleeved on the rotating shaft 72 and rotating with the rotating shaft 72; a connecting belt 74 wound around the periphery of the roller 73 and connected to the detection box 2; wherein one end of the connecting belt 74 is fixed to the periphery of the roller 73, and the other end is connected to the detection box 2, and the belt body of the connecting belt 74 close to the side connected to the roller 73 is wound around the periphery of the roller 73; matching ratchet 75 and pawl 76, the pawl 76 is engaged with the gear teeth of the ratchet 75 to lock the ratchet 75; the ratchet 75 is sleeved on the periphery of the rotating shaft 72, The pawl 76 is arranged at the support plate 71 with the help of a third elastic member 77 and a connecting shaft 79. The third elastic member 77 can be a torsion spring, specifically a torsion spring. One end of the torsion spring is fixed to the support plate 71 and the other end is connected to the connecting shaft 79. The pawl 76 is arranged at the periphery of the connecting shaft 79. When an external force is applied to the pawl 76 or the connecting shaft 79, the torsion spring twists and distorts, causing the pawl 76 to disengage from the ratchet 75. When the pawl 76 or the connecting shaft 79 is released, the torsion spring can drive the pawl 76 to return to its original position; wherein the unwinding mechanism 7 has a fixed state and an unwinding state; in the fixed state, the pawl 76 is clamped at the ratchet 75, locking the rotating shaft 72 and fixing the position of the detection box 2; in the unwinding state, the pawl 76 is opened and disengaged from the ratchet 75, the rotating shaft 72 is free, and the rotating shaft 72 drives the rotating roller 73 to rotate, so that the connecting belt 74 is released or reeled in, and then the detection box 2 is lowered or raised.

[0034] Combination Figure 2 As shown, the slider 62 includes a connecting block 65 and an extrusion block 66 that are connected to each other; the connecting block 65 is slidably set in the slide groove of the slide seat 61, and the rotating rod 63 is rotatably connected to the connecting block 65; one end of the second elastic member 64 is connected to the extrusion block 66, and the other end is connected to the stopper 67 fixed to the slide seat 61.

[0035] Combination Figure 5 As shown, the detection box 2 includes a shell 21, a sealing plate 22 and a detector 23; a plurality of the detectors 23 are arranged in the shell 21, suitable for respectively detecting the water pressure or flow direction of the seepage water; the sealing plate 22 is detachably installed on the shell 21 with the help of a buckle 24 to protect the detector 23; the shell 21 and the sealing plate 22 are both provided with a water inlet 25.

[0036] The use process of the foundation pit water seepage detection device for smart construction sites is as follows: before the water seepage detection work is carried out, the device needs to be moved to the foundation pit location. During the movement of the device, due to the uneven ground of the construction site, the device will be vibrated and bumped. Due to the influence of inertia, the movable plate 3 will jump up and down. In terms of height, the movable plate 3 will rise and fall to a certain extent. When the movable plate 3 descends, on the one hand, the first elastic member 52 is squeezed and compressed, and the first elastic member 52 absorbs part of the vibration energy. On the other hand, the descent of the movable plate 3 will drive the rotating rod 63 to rotate and move horizontally, and the rotating rod 63 will push the connecting block 65 accordingly. The connecting block 65 slides in the sliding seat 61 and drives the squeezing block 66 to move. The squeezing block 66 squeezes the second elastic member 64 and compresses it, and the second elastic member 64 absorbs part of the vibration energy; most of the energy brought by the vibration is absorbed by the first elastic member 52 and the second elastic member 64, which has the effect of shock absorption and buffering, and protects the detector 23 in the detection box 2 from damage; when the movable plate 3 rises, the first elastic member 52 and the second elastic member 64 are restored, and at the same time, the damper 8 can quickly consume the vibration energy absorbed by the first elastic member 52 and the second elastic member 64, thereby ensuring the stability of the device during movement.

[0037] The use process of the foundation pit water seepage detection device for smart construction sites also includes: after the device is stably moved to the foundation pit, the detection box 2 needs to be placed to a suitable detection position according to the depth of the foundation pit; the ratchet 76 is opened to release the restriction on the rotating shaft 72, and the detection box 2 is placed to the appropriate ... Figure 2 As shown, in the present embodiment, the rotating shaft 72 rotates clockwise under the influence of the gravity of the detection box 2, and the rotating shaft 72 drives the rotating roller 73 to rotate clockwise. The clockwise rotation of the rotating roller 73 drives the connecting belt 74 to be released, and the releasing of the connecting belt 74 drives the detection box 2 to descend, so that the detection box 2 enters the interior of the foundation pit; during the landing process, according to the depth of the foundation pit, the length of the connecting belt 74 released is controlled to be adapted to the depth of the foundation pit; wherein, the rotating shaft 72 can also be driven by an external force to rotate freely, and rotate according to the driven rotation direction and speed; after the detection box 2 reaches the detection position, the ratchet is released. The claw 76 is re-engaged on the ratchet 75, so that the position of the detection box 2 can be locked, and the position of the detector 23 located in the detection box 2 is also locked, so that the water seepage detection work can be carried out; if it is necessary to detect the water seepage at different depths, the position of the detection box 2 can be adjusted with the help of the unwinding mechanism 7; if there is water seepage inside the foundation pit, water will enter the detection box 2 through the water inlet 25, and the detector 23 may include a pore water pressure gauge and a static level, the pore water pressure gauge is used to detect the water pressure, and the static level is used to detect the flow direction of water, so as to detect the water seepage in the foundation pit.

[0038] In this embodiment, by setting the buffer mechanism 4 and the damper 8, the buffer mechanism 4 can absorb vibration energy when the device is vibrated, and the damper 8 can quickly consume the vibration energy absorbed by the buffer mechanism 4. The two aspects work together to enable the device to travel smoothly on uneven roads, thereby achieving the purpose of ensuring the smooth progress of foundation pit seepage detection work, and the practicability is strong; further, the buffer mechanism 4 has an independently arranged first buffer component 5 and a second buffer component 6, and a double shock-absorbing process, which can effectively protect the detector 23 in the detection box 2 from damage, and when one of them is accidentally damaged, the other can also work, which plays a double insurance effect; specifically, when the device is vibrated, the movable frame descends, on the one hand, the first elastic member 52 is squeezed, so that part of the energy generated by the vibration is absorbed by the first elastic member 52, and on the other hand, the rotating rod 63 is rotated and horizontally pushed, thereby squeezing the slider 62 to compress the second elastic member 64, and another part of the energy generated by the vibration is absorbed by the second elastic member 64, which plays a role of shock absorption and buffering, and the energy absorbed by the first buffer spring and the second buffer spring will be quickly consumed by the damper 8, which plays a protective role for the detector 23.

[0039] In this embodiment, by setting up the unwinding mechanism 7, the detection box 2 can be controllably adjusted in height, and the height of the detection position can be adaptively adjusted according to the depth of the foundation pit, so that the detection position matches the depth of the foundation pit, and the purpose of ensuring the smooth progress of the detection work is achieved. It is highly practical, and a single device can be adapted to a variety of foundation pit water seepage detection work of different depths, and has strong compatibility; specifically, the pawl 76 is opened, and the restriction on the rotating shaft 72 is released, and the rotating shaft 72 can rotate clockwise, and the rotating shaft 72 drives the rotating roller 73 to rotate clockwise. The clockwise rotation of the rotating roller 73 will drive the connecting belt 74 to be released, and the connecting belt 74 will drive the detection box 2 to descend. During the landing process, according to the depth of the foundation pit, the length of the connecting belt 74 released is controlled to make it compatible with the depth of the foundation pit, and the pawl 76 is released to make it re-engaged on the ratchet 75, so that the position of the detection box 2 can be locked, so that the detection work can be carried out smoothly.

[0040] In an optional embodiment, the telescopic rod group 51 includes a matching movable rod 53 and a sleeve 54; the sleeve 54 is fixed to the base plate 11; part of the rod body of the movable rod 53 is inserted into the sleeve 54, and the end of the movable rod 53 away from the sleeve 54 is fixed to the movable plate 3; the movable rod 53 is provided with an annular protrusion 55 on its periphery, and the annular protrusion 55 contacts the inner wall of the sleeve 54, so that the movable rod 53 and the sleeve 54 are slidably connected; the sleeve 54 is provided with an air vent 56 on its periphery.

[0041] In some embodiments, in combination Figure 1As shown, at least two of the first buffer components 5 are spaced between the base plate 11 and the movable plate 3 to balance the buffer effect and ensure the smooth running of the device.

[0042] In some embodiments, in combination Figure 3 As shown, the rotating shaft 72 is connected with a crank 78 for assisting in driving the rotating shaft 72 to rotate; a soft pad is installed on the crank 78, and the user can shake the crank 78 to drive the rotating shaft 72 to rotate, and the soft pad can enhance the comfort of the user's contact.

[0043] In some embodiments, in combination Figure 1 As shown, the frame 1 is provided with a plurality of wheels 12 for moving the frame 1 on the ground.

[0044] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A foundation pit seepage detection device for a smart construction site, characterized in that: include: The frame (1) has a base plate (11); A movable plate (3) is spaced apart from the base plate (11); A buffer mechanism (4) is disposed between the base plate (11) and the movable plate (3) and is suitable for absorbing vibration energy when the frame (1) is vibrated; A damper (8), the two ends of which are respectively connected to the base plate (11) and the movable plate (3), and is suitable for consuming the vibration energy absorbed by the buffer mechanism (4); The buffer mechanism (4) comprises a first buffer component (5) and a second buffer component (6); The first buffer component (5) comprises: A telescopic rod group (51), two ends of which are respectively connected to the base plate (11) and the movable plate (3); A first elastic member (52), the two ends of which are respectively connected to the base plate (11) and the movable plate (3), and is arranged around the periphery of the telescopic rod group (51); The second buffer component (6) comprises: A sliding seat (61) on which a sliding block (62) is slidably arranged; A rotating rod (63), both ends of which are rotatably connected to the movable plate (3) and the sliding block (62); A second elastic member (64) has one end fixed to the slide seat (61) and the other end connected to the slide block (62).

2. The foundation pit water seepage detection device for a smart construction site according to claim 1, characterized in that: Also includes, A detection box (2) is suitable for detecting water seepage in a foundation pit; An unwinding mechanism (7) connected to the detection box (2) and adapted to deliver the detection box (2) to a detection position; The unwinding mechanism (7) comprises: A support plate (71) fixed to the movable plate (3); A rotating shaft (72) is rotatably disposed on the support plate (71); A rotating roller (73) is sleeved on the rotating shaft (72) and rotates along with the rotating shaft (72); A connecting belt (74) is wound around the periphery of the rotating roller (73) and connected to the detection box (2); A ratchet (75) and a pawl (76) matched with each other, wherein the ratchet (75) is sleeved on the periphery of the rotating shaft (72), and the pawl (76) is arranged on the support plate (71) by means of a third elastic member (77) and a connecting shaft (79); Wherein, the unwinding mechanism (7) has a fixed state and an unwinding state; In the fixed state, the pawl (76) is engaged with the ratchet wheel (75), so that the rotating shaft (72) is locked and immobilized, and the position of the detection box (2) is fixed; In the unwinding state, the ratchet pawl (76) is pushed open and separated from the ratchet wheel (75), the rotating shaft (72) is free, and the rotating shaft (72) drives the rotating roller (73) to rotate, so that the connecting belt (74) is unwound or reeled, and the detection box (2) is lowered or raised.

3. The foundation pit water seepage detection device for a smart construction site according to claim 1, characterized in that: The telescopic rod set (51) comprises a matching movable rod (53) and a sleeve (54); The sleeve (54) is fixed on the base plate (11); Part of the rod body of the movable rod (53) is sleeved in the sleeve (54), and the end of one side of the movable rod (53) away from the sleeve (54) is fixed to the movable plate (3); The movable rod (53) is provided with an annular protrusion (55) on its periphery, and the annular protrusion (55) contacts the inner wall of the sleeve (54), so that the movable rod (53) and the sleeve (54) are slidably connected.

4. The foundation pit water seepage detection device for a smart construction site according to claim 1, characterized in that: The sliding block (62) comprises a connecting block (65) and an extruding block (66) which are connected to each other; The connecting block (65) is slidably arranged at the sliding groove of the sliding seat (61), and the rotating rod (63) is rotatably connected to the connecting block (65); One end of the second elastic member (64) is connected to the extrusion block (66), and the other end is connected to a stopper (67) fixed to the slide seat (61).

5. The foundation pit water seepage detection device for smart construction sites according to claim 3, characterized in that: The sleeve (54) is provided with air holes (56) on its periphery.

6. The foundation pit water seepage detection device for smart construction sites according to claim 2, characterized in that: The detection box (2) comprises a housing (21), a sealing plate (22) and a detector (23); A plurality of detectors (23) are arranged in the housing (21) and are suitable for respectively detecting the water pressure or flow direction of the seepage water; The sealing plate (22) is detachably mounted on the housing (21) by means of a buckle (24) to protect the detector (23); The housing (21) and the sealing plate (22) are both provided with water inlets (25).

7. The foundation pit water seepage detection device for a smart construction site according to any one of claims 1 to 5, characterized in that: At least two of the first buffer components (5) are arranged at intervals between the base plate (11) and the movable plate (3), suitable for balancing the buffer effect.

8. The foundation pit water seepage detection device for a smart construction site according to claim 2, characterized in that: The rotating shaft (72) is connected to a crank (78) suitable for assisting in driving the rotating shaft (72) to rotate.

9. The foundation pit water seepage detection device for a smart construction site according to any one of claims 1 to 5, characterized in that: The frame (1) is provided with a plurality of wheels (12) suitable for enabling the frame (1) to move on the ground.

10. The foundation pit water seepage detection device for smart construction sites according to claim 2, characterized in that: The first elastic member (52) and the second elastic member (64) are pressure springs; The third elastic member (77) is a torsion spring.

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