Foundation pit underground water level surveying device

Abstract

The utility model discloses a foundation pit underground water level surveying device, which comprises a support, a spool and a scale rope, the support is provided with two side plates arranged at intervals, the spool rotatably penetrates through the two side plates, two baffles are fixedly arranged on the outer side wall of the spool at intervals, a first bolt capable of abutting against the adjacent baffle is inserted into one side plate in a threaded manner, and a second bolt capable of abutting against the other baffle is inserted into the other side plate in a threaded manner. The outer side walls of the two side plates are rotationally connected with telescopic rod pieces correspondingly, a lifting handle is fixedly connected between the ends of the two telescopic rod pieces, a guide wheel is rotationally arranged outside the lifting handle, a second bolt capable of abutting against the other side plate is inserted into the side wall of one telescopic rod piece in a threaded mode, and a displacement assembly for moving the guide wheel in the length direction of the lifting handle is arranged in the lifting handle. One end of the scale rope is fixedly connected with the spool, the other end of the scale rope is fixedly connected with a water level sensor, and the scale rope is sequentially wound around the guide wheel and the spool. Through the arrangement, the situation that the water level sensor collides with the water level pipe can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to survey device technical field, concretely relates to a foundation pit underground water level survey device. BACKGROUND

[0002] In the process of foundation pit excavation, underground water level data is an important index for evaluating engineering safety, and its change directly affects the stability of foundation pit and the safety of surrounding environment. The prior art generally uses well depth measurement method to detect underground water level. This method first drills a hole at a predetermined measurement point, and then embeds a water level pipe in the hole. A scale rope with a water level sensor is then dropped into the water level pipe. When the water level sensor is lowered to the bottom and contacts the water surface, it will emit a sound or feedback other information. The scale at which the scale rope aligns with the ground at this moment is observed.

[0003] Chinese patent CN222013243U discloses a groundwater level detection device for geological disaster control engineering survey. The device includes a support, a wire spool rotating between the two supports, a measuring rope wound on the wire spool, and a water level sensor connected to one end of the measuring rope. The support supports the measuring rope and the water level sensor, reducing the friction between the measuring rope and the ground.

[0004] For the above-mentioned scheme, the measuring rope is usually wound in a spiral shape on the surface of the wire spool when it is reeled in. During the winding and unwinding process, the part of the measuring rope that is not wound on the wire spool moves along the axial direction of the wire spool. The water level sensor will swing with the movement of the measuring rope, which may collide with the inner wall of the water level pipe, affecting the service life of the water level sensor. Utility model content

[0005] The utility model intends to provide a foundation pit underground water level survey device to reduce the collision between the water level sensor and the water level pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of foundation pit groundwater level survey device, including support, spool and scale rope, the support has two side plates arranged at intervals, the spool is rotated and is arranged in two the side plate, the outer side wall of spool is fixedly provided with two baffle at intervals, one of the side plate is inserted with first bolt that can be abutted with adjacent baffle, the outer side wall of two the side plate is respectively connected with telescopic link along the axial rotation of spool, the end of two the telescopic link is fixedly connected with handle, the handle is rotatably provided with guide wheel outside, one of the telescopic link side wall is inserted with second bolt that can be abutted with another the side plate, the handle is provided with displacement component inside along the length direction of handle moving guide wheel, the scale rope one end is fixedly connected with spool, the other end is fixedly connected with water level sensor, the scale rope is sequentially wound on guide wheel and spool.

[0008] The principle and effect of the technical solution are as follows:

[0009] In the initial state, the telescopic link is in vertical state, and the guide wheel is located at one end of the handle, one end of the second bolt is pressed against the adjacent side plate, the first bolt is pressed against the adjacent baffle, when the device is transferred to the measurement site, the worker transfers the device by holding the handle, after the device is transferred to the predetermined position, the scale rope is wound around the guide wheel, then the second bolt is rotated to be separated from the adjacent side plate, the telescopic link is rotated, the distance between the water level sensor and the support is adjusted, the second bolt is locked after the water level sensor moves above the water level pipe, to prevent the telescopic link from continuing to rotate, then the guide wheel is moved along the axis of the handle by using the displacement component, and then the water level sensor is moved along the axis of the handle, until the axis of the water level sensor is collinear with the axis of the water level pipe, the first bolt is rotated to be separated from the adjacent baffle, the spool is slowly rotated to lower the water level sensor, when the water level sensor emits a sound or feedbacks other information, the spool is stopped and the first bolt is locked, and the scale of the scale rope aligned with the water level pipe is recorded.

[0010] Through the above setting, the telescopic link is rotated to provide a fulcrum for the handle for transferring the device, and to provide support for the guide wheel, without the need for additional guide device, and the guide wheel is moved by using the displacement component to make the axis of the water level sensor collinear with the axis of the water level pipe when the scale rope is wound or unwound, to reduce the collision between the water level sensor and the water level pipe, and to prolong the service life of the device.

[0011] In the utility model, the telescopic link includes a movable rod and a rod sleeve, the outer side wall of the side plate is fixedly provided with a hinge seat along the axis of the spool, one end of the movable rod is rotatably sleeved in the hinge seat, and the other end of the movable rod is slidably inserted into one end of the rod sleeve, the two ends of the handle are fixedly connected with the other ends of the two rod sleeves, and the second bolt is threadedly inserted into one of the movable rods. Through the above setting, the telescopic link and the spool can be rotated along the same axis relative to the side plate.

[0012] In the utility model, two first jacks are arranged at the side wall of one of the movable rods, and the side wall of the rod sleeve is screw-plugged with third bolts matched with the first jacks.

[0013] The principle and effects of the technical scheme are as follows:

[0014] When the device is in an idle state, the end of the third bolt is inserted into the first jack close to the wire shaft; when used, the third bolt is unscrewed, the rod sleeve is pulled to move, and the end of the third bolt is inserted into the other first jack, thereby extending the overall length of the telescopic rod.

[0015] Through the above arrangement, the volume of the device in the idle state can be reduced, and the adjustment range of the device to the horizontal position of the water level sensor during measurement can be increased, thereby improving the practicability of the device.

[0016] In the utility model, the sliding groove is arranged along the axial direction of the handle, and a plurality of through grooves are arranged on the inner side wall of the sliding groove along the circumferential direction; the displacement assembly comprises a sliding block and a threaded rod; the threaded rod is rotatably inserted into the sliding groove; the sliding block is fitted around the threaded rod in the sliding groove; the outer side wall of the sliding block is fixedly provided with protrusions which are slidably arranged in the corresponding through grooves; the inner side wall of the guide wheel is coaxially fixedly connected with a bearing, and the inner side wall of the bearing is fixedly connected with the plurality of protrusions.

[0017] The principle and effects of the technical scheme are as follows:

[0018] When the guide wheel needs to be moved, the threaded rod is rotated, the protrusions are limited by the through grooves, and the sliding block is rotated along with the threaded rod and moves along the axis of the threaded rod.

[0019] Through the above arrangement, the purpose of moving the guide wheel along the length direction of the handle is achieved, and the bearing is arranged to reduce the friction between the guide wheel and the handle and improve the smoothness of the device during use.

[0020] In the utility model, the circumferential outer side wall of the guide wheel is fixedly provided with two limiting plates, and the scale rope is located between the two limiting plates. Through the above arrangement, the scale rope can be prevented from being pulled out of the guide wheel, and the protection effect of the device on the water level sensor is ensured.

[0021] In the utility model, the outer side wall of one of the side plates is fixedly provided with an elastic clamping plate for clamping the water level sensor. Through the above setting, the water level sensor can be stored in the idle state, and knocking with the outside is avoided, and the protection effect of the device on the water level sensor is further improved.

[0022] In the utility model, the outer side wall of one of the side plates is fixedly provided with an elastic clamping plate for clamping the water level sensor. Through the above setting, the water level sensor can be stored in the idle state, and knocking with the outside is avoided, and the protection effect of the device on the water level sensor is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view axonometric drawing of the utility model;

[0024] Figure 2 It is the front view axonometric drawing of the utility model part components; Figure One ;

[0025] Figure 3 It is the front view axonometric drawing of the utility model part components; Figure Two ;

[0026] Figure 4 It is the rear view axonometric drawing of the utility model;

[0027] Figure 5 It is the rear view axonometric drawing of the utility model part components. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail in connection with the drawings and embodiments:

[0029] The reference signs in the drawings of the specification include: 10, support;11, side plate;12, hinged seat;13, second jack;20, spool;21, baffle;31, first bolt;32, second bolt;33, third bolt;40, telescopic rod;41, movable rod;411, first jack;42, rod sleeve;50, handle;51, sliding groove;52, through slot;60, guide wheel;61, limit plate;71, sliding block;72, threaded rod;73, protruding block;81, scale rope;82, water level sensor;90, elastic clamping plate.

[0030] Embodiment:

[0031] As the drawings Figures 1-5The utility model discloses a kind of foundation pit underground water level surveying devices, including support 10, spool 20 and scale rope 81, the support 10 has two side plates 11 of interval arrangement, the spool 20 rotationally passes through the two side plates 11, the outer lateral wall of spool 20 is fixedly provided with two baffles 21 at intervals, one of the side plates 11 is screw-plugged with the first bolt 31 that can be abutted with adjacent baffle 21, the outer lateral wall of two side plates 11 is respectively connected with telescopic link 40 along the axial rotation of spool 20, the end of two telescopic link 40 is fixedly connected with handle 50, handle 50 is rotationally provided with guide wheel 60 outside, one of the side walls of telescopic link 40 is screw-plugged with the second bolt 32 that can be abutted with another side plate 11, displacement assembly that guide wheel 60 moves along the length direction of handle 50 is provided in handle 50, one end of scale rope 81 is fixedly connected with spool 20, the other end is fixedly connected with water level sensor 82, scale rope 81 is sequentially wound on guide wheel 60 and spool 20.

[0032] In the embodiment, the telescopic link 40 includes movable rod 41 and rod sleeve 42, the outer lateral wall of the side plate 11 is fixedly provided with hinged seat 12 along the axial direction of spool 20, one end of the movable rod 41 is rotationally sleeved in the hinged seat 12, the other end of the movable rod 41 is slidingly inserted into one end of the rod sleeve 42, the two ends of the handle 50 are respectively fixedly connected with the other end of the two rod sleeves 42, and the second bolt 32 is screw-plugged into one of the movable rods 41.

[0033] In the embodiment, the side wall of one of the movable rods 41 is provided with two first insertion holes 411 at intervals, and the side wall of the corresponding rod sleeve 42 is screw-plugged with the third bolt 33 matched with the first insertion hole 411.

[0034] In the embodiment, the handle 50 is provided with a sliding groove 51 along its axial direction, the inner lateral wall of the sliding groove 51 is provided with a plurality of through grooves 52 at intervals along its circumferential direction, the displacement assembly includes a sliding block 71 and a threaded rod 72, the threaded rod 72 is rotationally inserted into the sliding groove 51, the sliding block 71 is fitted and sleeved on the threaded rod 72 in the sliding groove 51, the outer lateral wall of the sliding block 71 is fixedly provided with a protruding block 73 slidingly arranged in the corresponding through groove 52, the inner lateral wall of the guide wheel 60 is fixedly connected with a bearing coaxially, and the inner lateral wall of the bearing is fixedly connected with a plurality of the protruding blocks 73.

[0035] In the embodiment, the circumferential outer lateral wall of the guide wheel 60 is fixedly provided with two limiting plates 61, and the scale rope 81 is located between the two limiting plates 61.

[0036] In the embodiment, the outer lateral wall of the other side plate 11 is recessed with a second insertion hole 13 matched with the second bolt 32.

[0037] In the embodiment, the outer side wall of one of the rod sleeves 42 is fixedly provided with an elastic clamping plate 90 for clamping the water level sensor 82.

[0038] The implementation process is as follows:

[0039] In the initial state, the telescopic rod 40 is in the vertical state, the guide wheel 60 is located at one end of the handle 50, one end of the second bolt 32 is pressed against the adjacent side plate 11, and one end of the first bolt 31 is pressed against the adjacent baffle 21. When the device is transferred to the measurement site, the staff transfers the device by holding the handle 50. After the device is transferred to the predetermined position, the scale rope 81 is wound around the guide wheel 60, and then the second bolt 32 is rotated to be separated from the adjacent side plate 11. The telescopic rod 40 is rotated to adjust the distance between the water level sensor 82 and the bracket 10, so that the water level sensor 82 moves to the upper side of the water level pipe. Then the second bolt 32 is locked to prevent the telescopic rod 40 from continuing to rotate. Then the displacement assembly is used to move the guide wheel 60 along the axis of the handle 50, and then the water level sensor 82 is moved along the axis of the handle 50, until the axis of the water level sensor 82 is collinear with the axis of the water level pipe. The first bolt 31 is rotated to be separated from the adjacent baffle 21, and the water level sensor 82 is slowly rotated below the reel 20. When the water level sensor 82 emits a sound or feeds back other information, the reel 20 is stopped, and the first bolt 31 is locked. The scale of the scale rope 81 aligned with the water level pipe is recorded.

[0040] When the device is in an idle state, the end of the third bolt 33 is inserted into the first insertion hole 411 close to the reel 20; when in use, the third bolt 33 is unscrewed, the rod sleeve 42 is moved, and the end of the third bolt 33 is inserted into another first insertion hole 411, thereby extending the overall length of the telescopic rod 40.

[0041] When the guide wheel 60 needs to be moved, the threaded rod 72 is rotated. Because the through slot 52 restricts the rotation of the protrusion 73, the sliding block 71 moves along the axis of the threaded rod 72 as the threaded rod 72 rotates.

[0042] The parts not involved in the device are the same as or can be implemented by the existing technology.

[0043] The above is only an embodiment of the present application, and the known specific technical solutions or characteristics in the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A groundwater level surveying device for foundation pits, characterized in that, include: A support frame having two side plates arranged at intervals; A spool is rotatably inserted through two side plates. Two baffles are fixedly arranged at intervals on the outer side wall of the spool. A first bolt capable of abutting against the adjacent baffle is threaded into one of the side plates. Telescopic rods are rotatably connected to the outer side walls of the two side plates along the axial direction of the spool. A handle is fixedly connected between the ends of the two telescopic rods. A guide wheel is rotatably arranged on the handle. A second bolt capable of abutting against the other side plate is threaded into the side wall of one of the telescopic rods. A displacement assembly for moving the guide wheel along the length direction of the handle is provided inside the handle. A graduated rope, one end of which is fixedly connected to a spool and the other end of which is fixedly connected to a water level sensor, is wound sequentially around a guide wheel and a spool.

2. The groundwater level surveying device for foundation pits as described in claim 1, characterized in that: The telescopic rod includes a movable rod and a rod sleeve. A hinge seat is fixedly provided on the outer side wall of the side plate along the linear axis. One end of the movable rod is rotatably sleeved on the hinge seat, and the other end of the movable rod is slidably inserted into one end of the rod sleeve. The two ends of the handle are respectively fixedly connected to the other ends of the two rod sleeves. The second bolt is threaded into one of the movable rods.

3. The groundwater level surveying device for foundation pits as described in claim 2, characterized in that: One of the movable rods has two first insertion holes spaced apart on its side wall, and the corresponding rod sleeve has a third bolt threaded into its side wall that mates with the first insertion hole.

4. The groundwater level surveying device for foundation pits as described in claim 1, characterized in that: The handle is provided with a sliding groove along its axial direction, and the inner sidewall of the sliding groove is provided with multiple through slots spaced apart along its circumference. The displacement component includes a slider and a threaded rod. The threaded rod is rotatably inserted into the sliding groove, and the slider is fitted and sleeved on the threaded rod in the sliding groove. The outer sidewall of the slider is fixedly provided with protrusions that are slidably disposed in the corresponding through slots. The inner sidewall of the guide wheel is coaxially fixedly connected to a bearing, and the inner sidewall of the bearing is fixedly connected to multiple protrusions.

5. The groundwater level surveying device for foundation pits as described in any one of claims 1-4, characterized in that: Two limiting plates are fixedly installed at intervals on the outer circumferential side wall of the guide wheel, and the scale rope is located between the two limiting plates.

6. The groundwater level surveying device for foundation pits as described in any one of claims 1-4, characterized in that: The outer side wall of the other side plate is recessed with a second insertion hole that mates with the second bolt.

7. The groundwater level surveying device for foundation pits as described in claim 2 or 3, characterized in that: One of the rod sleeves is fixedly provided with an elastic clamping plate for securing the water level sensor on its outer side wall.

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