Geotechnical engineering investigation drilling water level monitoring device

Abstract

The utility model relates to the field of water level measurement, in particular to a geotechnical engineering investigation drilling water level monitoring device which comprises a water level gauge body and a limiting cover, the limiting cover is provided with a limiting hole, four rotatable limiting wheels are arranged in the limiting hole, every two limiting wheels form a group, and the two groups of limiting wheels are located at the left end and the right end of a steel ruler of the water level gauge body respectively. The two limiting wheels in each set are located on the front side and the rear side of the water level gauge body steel ruler respectively, and the limiting wheels are attached to the water level gauge body steel ruler. The limiting cover is used for being placed on a PVC pipe, the four limiting wheels in the limiting holes in the inner side of the limiting cover are used for limiting the two sides of a steel ruler of the water level gauge body, scales of the steel ruler are arranged in the middle, and the middle scale position is suspended through the limiting wheels on the two sides and cannot be blurred due to contact and friction with other objects. Meanwhile, the contact between the limiting wheels and the two sides of the steel ruler is smoother, so that the abrasion to the two sides of the steel ruler is also reduced, and the service life of the steel ruler is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water level measurement, specifically to a water level monitoring device for boreholes used in geotechnical engineering exploration. Background Technology

[0002] Geotechnical engineering borehole water level monitoring is a technical means of acquiring real-time or periodic dynamic data of groundwater level by installing water level measuring devices in the borehole. It is mainly used to assess the impact of groundwater on engineering projects. The process includes borehole construction, installation of PVC pipes, and measurement of water level using instruments. Currently, steel tape level gauges are commonly used for water level monitoring. A steel tape level gauge includes a probe, a steel tape cable, a receiving system, and a winding reel. The probe contains a water level sensor. When the contact point of the probe touches the water surface, the buzzer of the receiving system emits a continuous beeping sound. At this time, the reading of the steel tape cable at the pipe opening is taken as the initial water level. The average value of multiple measurements is taken as the current groundwater level.

[0003] Generally, in the early stage of construction, it is necessary to measure once a day for a week, and in the construction period, it is necessary to measure 1 to 3 times a day. At the same time, multiple water measurement points need to be drilled near the construction site, and multiple measurements are required each time to take the average value. This makes the steel ruler water level gauge used frequently. When the steel ruler is put in and rolled up, it is easy to come into contact with the PVC pipe. The friction generated by the contact can easily make the scale blurred and difficult to read. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a water level monitoring device for boreholes in geotechnical engineering exploration, so as to solve the problem that the steel ruler of the existing steel ruler water level gauge is prone to contact and friction with the PVC pipe, causing the scale to become blurred.

[0005] To achieve the above objectives, this utility model provides a borehole water level monitoring device for geotechnical engineering exploration, including a water level gauge body and a limiting cover. The limiting cover has a limiting hole, in which four rotatable limiting wheels are provided. The four limiting wheels are arranged in pairs, with the two pairs of limiting wheels located at the left and right ends of the steel ruler of the water level gauge body, respectively. The two limiting wheels in each pair are located at the front and rear sides of the steel ruler of the water level gauge body, respectively, and the limiting wheels are in contact with the steel ruler of the water level gauge body.

[0006] The principle and beneficial effects of the technical solution are as follows: The water level gauge body is the existing steel tape water level gauge, model HY.SWJ-30; it includes a probe with a water level sensor, a steel tape cable, a receiving system, and a winding reel. When the contact point of the probe touches the water surface, the buzzer of the receiving system emits a continuous beeping sound. At this time, the reading of the steel tape cable at the pipe opening is taken as the initial water level. The average value of multiple measurements is taken as the current groundwater level. The limiting cover is used to be placed on the PVC pipe. The four limiting wheels in the limiting holes on its inner side are used to limit the two sides of the steel tape of the water level gauge body. The scale of the steel tape is set in the middle. By limiting it with the limiting wheels on both sides, the middle scale position is suspended and will not be blurred due to contact and friction with other objects. At the same time, the contact between the limiting wheels and the two sides of the steel tape is smoother, which reduces the wear on the two sides of the steel tape and thus greatly extends the service life of the steel tape.

[0007] In a preferred embodiment of this utility model, two guide wheels are provided on both the upper and lower sides of the limiting wheel, and the two guide wheels are located on the front and rear sides of the steel ruler of the water level gauge body; the length of the guide wheel is the same as the width of the steel ruler of the water level gauge body, and there is a gap between the guide wheel and the steel ruler of the water level gauge body.

[0008] Beneficial effects: Under normal circumstances, the guide wheel does not contact the steel ruler. When the steel ruler is bent or folded, the guide wheel can restore it and allow it to enter the limiting wheel smoothly. At the same time, the guide wheel is also cylindrical, so the contact with the steel ruler is smooth and has a low impact on friction.

[0009] In a preferred embodiment of this utility model, the limiting cover is further provided with two clamping holes, a limiting rod is provided in the clamping holes, a sliding plate is provided on the limiting rod, and a spring is sleeved on the outside of the limiting rod. The spring is used to pop the sliding plate outward of the limiting cover.

[0010] Beneficial effects: When in use, the sliding plate is placed into the PVC pipe. Under the action of the spring, the sliding plate pops outward and locks the inner wall of the PVC pipe, so that the limiting cover can be installed into the PVC pipe. This avoids the need for manual handling. After the limiting cover is installed, the steel ruler can be released manually, reducing the difficulty of operation.

[0011] In a preferred embodiment of this utility model, the sliding plate includes a main board, a pressing plate fixed above the main board, and a squeezing block fixed below the main board. The main board and the limiting rod are slidably connected, and the limiting cover is also slidably connected. The pressing plate extends above the limiting cover, and the squeezing block extends below the limiting cover.

[0012] Beneficial effects: The main board is used to connect the pressing plate and the extrusion block; the pressing plate is used to facilitate manual pressing, which drives the extrusion block to retract; the extrusion block is used to extrude the inner wall of the PVC pipe to achieve the effect of fixing the limiting cover.

[0013] In a preferred embodiment of this utility model, the lower end of the extrusion block is provided with a chamfer.

[0014] Beneficial effects: For some PVC pipes with similar dimensions to the limiting cover, the chamfer can directly cause the extrusion block to retract inward when inserted downward, eliminating the need for manual pressing of the pressing plate and further simplifying the operation.

[0015] In a preferred embodiment of this utility model, a positioning ring is fixed to the upper end of the limiting cover. The outer diameter of the positioning ring is larger than that of the limiting cover, and the lower surface of the positioning ring is flush with the upper surface of the limiting cover.

[0016] Beneficial effects: The positioning ring is used to place above the PVC pipe to prevent the limiting cap from falling into the PVC pipe and being inconvenient to remove; and the lower surface of the positioning ring is flush with the upper surface of the limiting cap, that is, the upper surface of the PVC pipe is flush with the upper surface of the limiting cap, making the steel ruler reading more accurate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of an embodiment of the geotechnical engineering exploration borehole water level monitoring device of this utility model.

[0019] Figure 2 This is a top view of an embodiment of the geotechnical engineering exploration borehole water level monitoring device of this utility model.

[0020] Figure 3 This is an embodiment of the geotechnical engineering exploration borehole water level monitoring device based on... Figure 2 Sectional view of AA.

[0021] Figure 4 This is a top view of the water level monitoring device for geotechnical engineering exploration boreholes, with the water level gauge body hidden, as shown in the embodiment of this utility model.

[0022] The reference numerals in the accompanying drawings are as follows: 1. Water level gauge body, 2. Limiting cover, 3. Limiting hole, 4. Limiting wheel, 5. Guide wheel, 6. Clamping hole, 7. Limiting rod, 8. Sliding plate, 81. Main plate, 82. Pressing plate, 83. Extrusion block, 84. Chamfer, 9. Spring, 10. Positioning ring. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] As attached Figure 1 As shown, this utility model provides a borehole water level monitoring device for geotechnical engineering exploration: it includes a water level gauge body 1, which is the existing steel tape water level gauge, including a probe with a water level sensor, a steel tape cable, a receiving system and a winding reel. When the contact point of the probe touches the water surface, the buzzer of the receiving system emits a continuous beeping sound. At this time, the reading of the steel tape cable at the pipe opening is read, which is the initial water level. The average value of multiple measurements is the current groundwater level.

[0028] As attached Figure 1 ~Appendix Figure 4As shown, in this embodiment, a limiting cover 2 is provided on the outer side of the steel ruler of the water level gauge body 1; a positioning ring 10 is fixed to the upper end of the limiting cover 2, the outer diameter of the positioning ring 10 is larger than that of the limiting cover 2, and the lower surface of the positioning ring 10 is flush with the upper surface of the limiting cover 2; the positioning ring 10 is used to place above the PVC pipe to prevent the limiting cover 2 from falling into the PVC pipe and being inconvenient to remove; and the lower surface of the positioning ring 10 is flush with the upper surface of the limiting cover 2, that is, to make the upper surface of the PVC pipe and the upper surface of the limiting cover 2 flush, so that the reading of the steel ruler is more accurate. The limiting cover 2 is provided with two clamping holes 6, and a limiting rod 7 is provided in the clamping holes 6. A sliding plate 8 is provided on the limiting rod 7, and a spring 9 is sleeved on the outside of the limiting rod 7. The spring 9 is used to pop the sliding plate 8 outward of the limiting cover 2. In use, the sliding plate 8 is placed in the PVC pipe. Under the action of the spring 9, the sliding plate 8 pops outward and locks the inner wall of the PVC pipe, so that the limiting cover 2 can be installed in the PVC pipe. This avoids the need for manual handling. After the limiting cover 2 is installed, only the steel ruler needs to be released manually, reducing the difficulty of operation.

[0029] As attached Figure 1 As shown, in this embodiment, the sliding plate 8 includes a main plate 81, a pressing plate 82 fixed above the main plate 81, and a squeezing block 83 fixed below the main plate 81. The main plate 81 is slidably connected to the limiting rod 7 and to the limiting cover 2. The pressing plate 82 extends above the limiting cover 2, and the squeezing block 83 extends below the limiting cover 2. The main plate 81 connects the pressing plate 82 and the squeezing block 83. The pressing plate 82 facilitates manual pressing, causing the squeezing block 83 to retract. The squeezing block 83 squeezes the inner wall of the PVC pipe to fix the limiting cover 2. Preferably, the lower end of the squeezing block 83 is provided with a chamfer 84. For some PVC pipes with similar dimensions to the limiting cover 2, the chamfer 84 allows the squeezing block 83 to retract inward directly when inserted downward, eliminating the need for manual pressing of the pressing plate 82 and further simplifying the operation.

[0030] As attached Figure 1 and attached Figure 4As shown, in this embodiment, the limiting cover 2 is also provided with limiting holes 3, and four rotatable limiting wheels 4 are provided in the limiting holes 3. The four limiting wheels 4 are arranged in pairs, and the two sets of limiting wheels 4 are located at the left and right ends of the steel ruler of the water level gauge body 1, respectively. The two limiting wheels 4 in each set are located on the front and rear sides of the steel ruler of the water level gauge body 1, respectively. The limiting wheels 4 are all in contact with the steel ruler of the water level gauge body 1. The limiting cover 2 is used to be placed on the PVC pipe. The four limiting wheels 4 in the limiting holes 3 on its inner side are used to limit the two sides of the steel ruler of the water level gauge body 1. The scale of the steel ruler is set in the middle. It is limited by the limiting wheels 4 on both sides, so that the middle scale position is suspended and will not be blurred by contact and friction with other objects. At the same time, the contact between the limiting wheels 4 and the two sides of the steel ruler is smoother, which reduces the wear on the two sides of the steel ruler and thus greatly extends the service life of the steel ruler.

[0031] As attached Figure 3 and attached Figure 4 As shown, in this embodiment, two guide wheels 5 are provided on both the upper and lower sides of the limiting wheel 4. The two guide wheels 5 are located on the front and rear sides of the steel ruler of the water level gauge body 1. The length of the guide wheel 5 is the same as the width of the steel ruler of the water level gauge body 1, and there is a gap between them. Under normal circumstances, the guide wheel 5 does not contact the steel ruler. When the steel ruler is bent or folded, the guide wheel 5 can help to restore it and make it enter the limiting wheel 4 smoothly. At the same time, the guide wheel 5 is also cylindrical, and its contact with the steel ruler is smooth, with low frictional impact.

[0032] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. Typical known structures and common knowledge techniques in the preferred embodiments have not been described in detail here. Those skilled in the art can improve and implement the technical solution of this utility model based on the inspiration given in these embodiments and their own capabilities. Some typical known structures, known methods or common knowledge techniques should not be obstacles for those skilled in the art to implement this application.

[0033] The scope of protection claimed in this application shall be determined by the contents of its claims. The contents of the utility model description, specific embodiments, and drawings are used to interpret the claims.

[0034] Within the scope of the technical concept of this application, several modifications can be made to the specific implementation of this application, and these modified implementations should also be considered within the protection scope of this application.

Claims

1. A geotechnical engineering investigation borehole water level monitoring device comprising a water level gauge body, characterised in that: Also include the limit cover, the limit cover has limit hole, four rotatable limit wheel is arranged in the limit hole, four limit wheel two two groups, two groups of limit wheel is located in the water level meter body steel ruler left and right two ends respectively;Each group of two limit wheel is located in the front and back of the water level meter body steel ruler, the limit wheel is consistent with the water level meter body steel ruler.

2. The geotechnical engineering investigation borehole water level monitoring device according to claim 1, characterized in that: The upper and lower sides of the limit wheel are provided with two guide wheels, and the two guide wheels are located on the front and back of the water level meter body steel ruler;The guide wheel length and the water level meter body steel ruler width are same, and there is gap with the water level meter body steel ruler.

3. The geotechnical engineering investigation borehole water level monitoring device according to claim 1, characterized in that: The limit cover is also provided with two clamping holes, the clamping hole is provided with a limit rod, the limit rod is provided with a sliding plate, the outer side of the limit rod is provided with a spring, and the spring is used to pop out the sliding plate to the outer side of the limit cover.

4. The geotechnical engineering investigation borehole water level monitoring device according to claim 3, characterized in that: The sliding plate includes a main plate, a pressing plate fixed above the main plate, and an extrusion block fixed below the main plate, the main plate and the limit rod are slidingly connected, and the main plate and the limit cover are slidingly connected;The pressing plate extends above the limit cover. The extrusion block extends below the limit cover.

5. The geotechnical engineering investigation borehole water level monitoring device according to claim 4, characterized in that: The lower end of the extrusion block is provided with a chamfer.

6. The geotechnical investigation borehole water level monitoring device according to claim 1, characterized in that: The upper end of the limit cover is fixed with a positioning ring, the outer diameter of the positioning ring is greater than the limit cover, and the lower surface of the positioning ring is flush with the upper surface of the limit cover.

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