Stratum settlement monitoring layering mark bottom sliding rod oil bin structure

Abstract

The utility model relates to the technical field of geological monitoring, and provides a stratigraphic settlement monitoring layering mark bottom sliding rod oil bin structure which comprises an oil storage bin and a lower sealing assembly, the lower sealing assembly prevents lubricating oil in the oil storage bin from leaking outwards and meanwhile prevents underground water in a drill hole from penetrating into the oil storage bin, and a sliding rod is in sliding contact with the inner wall of an upper sealing assembly; a water inlet channel and an oil discharge channel are formed in the lower sealing assembly, a first sealing plug and a first spring are arranged in the water inlet channel, the first sealing plug is in sliding contact with the inner wall of the water inlet channel, the first end of the first spring is fixedly connected with the first sealing plug, and the second end of the first spring is fixedly connected with the inner wall of the water inlet channel; the oil discharge channel is communicated with the oil storage bin through an oil outlet hole, a second sealing plug and a second spring are arranged in the oil outlet hole, the second sealing plug is in sliding contact with the inner wall of the oil outlet hole, the second sealing plug shields the oil discharge channel, the first end of the second spring is fixedly connected with the second sealing plug, and the second end of the second spring is fixedly connected with the inner wall of the oil discharge channel.

Description

Technical Field

[0001] The utility model relates to the technical field of geological monitoring, in particular to a bottom sliding rod oil bin structure of a stratum settlement monitoring layered marker. Background Art

[0002] In plain areas, land subsidence causes cracking, building collapse, poor sewer drainage, and deteriorating water quality. In coastal areas, land subsidence expands the reach of storm surges, encroaching the coastline inward into harbors, and severely impacts and harms already low-lying marshy areas. It significantly increases the area of ​​low-lying wetlands and turns farmland into swamps. Overexploitation of groundwater, oil, natural gas, geothermal resources, and slow deformation of foundation soils caused by urban construction and major projects are all contributing factors to land subsidence.

[0003] Layered markers are points buried in the various soil layers of the overburden. Within areas of ground subsidence, these markers are embedded in the top and bottom plates of different soil layers and extend directly into the ground. After undergoing stability treatment, they are combined with other layered markers and bedrock markers to measure the compression and expansion of different soil layers, thereby calculating their deformation and total ground subsidence. Layered markers serve as a basis for studying the changes in subsidence of soil and water-bearing sand layers at different depths. Their construction enables effective monitoring of ground subsidence, further contributing to the establishment of a comprehensive geological disaster early warning system, mitigating and preventing disasters and ensuring the rapid and stable development of the national economy.

[0004] Chinese utility model patent publication number CN213090751U discloses a pressure-balancing device for the bottom of a layered land subsidence monitoring marker. The device accurately reflects stratum changes and ensures observation accuracy. However, this device has separate oil drainage and water inlet channels, each equipped with a steel ball structure. This poor stability results in instability during both the oil drainage and water inlet processes, compromising the reliability of the entire device. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a stratum settlement monitoring layered marker bottom sliding rod oil tank structure, so that the oil leakage process and water intake process are more stable.

[0006] In order to achieve the above-mentioned object, the utility model is realized by the following technical solutions: a bottom sliding rod oil storage structure of a stratum settlement monitoring layered marker, comprising an oil storage bin and a lower sealing assembly, wherein the outer peripheral surface of the lower sealing assembly is provided with a water inlet channel and an oil unloading channel extending inwardly;

[0007] The water inlet channel is connected to the oil storage tank via a water inlet hole. A first sealing plug and a first spring are provided in the water inlet channel. The first sealing plug is in sliding contact with the inner wall of the water inlet channel and maintains a seal. The first sealing plug blocks the water inlet hole. A first end of the first spring is fixedly connected to the first sealing plug, and a second end of the first spring is fixedly connected to the inner wall of the water inlet channel.

[0008] The oil unloading passage is connected to the oil storage tank through an oil outlet hole. A second sealing plug and a second spring are provided in the oil outlet hole. The second sealing plug is in sliding contact with the inner wall of the oil outlet hole and maintains a seal. The second sealing plug blocks the oil unloading passage. The first end of the second spring is fixedly connected to the second sealing plug, and the second end of the second spring is fixedly connected to the inner wall of the oil unloading passage.

[0009] Furthermore, a first card slot extending outward is formed on the inner wall of the water inlet channel, the first card slot is located outside the first sealing plug, and a first filter screen is provided in the first card slot.

[0010] Furthermore, a second slot extending outward is formed on the inner wall of the oil outlet hole, and a second filter screen is provided in the second slot.

[0011] Furthermore, an annular groove is opened inside the lower sealing component, and the annular groove is located inside the first clamping groove and the second clamping groove, and the annular groove is connected with both the first clamping groove and the second clamping groove.

[0012] Furthermore, the first card slot is adapted to the first filter screen.

[0013] Furthermore, the second card slot is adapted to the second filter screen.

[0014] The beneficial effects of the present invention are as follows: The present invention provides a stratum subsidence monitoring stratification marker with a bottom sliding rod oil storage structure that can regulate the pressure within the oil storage tank, thereby maintaining a constant pressure within the oil storage tank. Furthermore, the water inlet channel guides the movement of the first sealing plug, while the oil outlet guides the movement of the second sealing plug, thereby making the oil discharge and water inlet processes more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B in the middle.

[0018] Figure markings: 10-benchmark, 11-protective tube, 13-sleeve, 14-bottom, 15-upper sealing assembly, 31-annular groove, 40-water inlet channel, 41-water inlet hole, 42-first sealing plug, 43-first spring, 44-first slot, 45-first filter screen, 50-oil unloading channel, 51-oil outlet hole, 52-second sealing plug, 53-second spring, 54-second slot, 55-second filter screen. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In this application, unless otherwise specified or limited, the terms "connect" and "fix" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "horizontal", "top", "bottom", "up", "down", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, 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. Therefore, they cannot be understood as limitations on the present invention.

[0022] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0023] like Figure 1-Figure 3 As shown, the present invention provides a stratum subsidence monitoring stratum bottom sliding rod oil storage structure, including a marker 10, which is equipped with a protective tube 11, a sliding sleeve 13, and a marker bottom 14. The lower end of the protective tube 11 is provided with an inner seal assembly, the upper end of the sliding sleeve 13 is provided with an upper seal assembly 15, the middle portion of the sliding sleeve 13 is provided with an oil storage tank, and the lower end of the sliding sleeve 13 is provided with a lower seal assembly. The above content is all prior art, and the specific structure is not repeated here.

[0024] A water inlet channel 40 and an oil discharge channel 50 extending inwardly in a transverse direction are formed on the outer peripheral surface of the lower sealing assembly.

[0025] The water inlet channel 40 communicates with the oil storage tank 20 via a water inlet hole 41, which extends longitudinally. A first sealing plug 42 and a first spring 43 are disposed within the water inlet channel 40. The first sealing plug 42 slides in contact with the inner wall of the water inlet channel 40, maintaining a seal and shielding the water inlet hole 41. A first end of the first spring 43 is fixedly connected to the first sealing plug 42, while a second end of the first spring 43 is fixedly connected to the inner wall of the water inlet channel 40.

[0026] The oil unloading passage 50 communicates with the oil storage tank via an oil outlet 51. A second sealing plug 52 and a second spring 53 are disposed within the oil outlet 51. The second sealing plug 52 slides against the inner wall of the oil outlet 51, maintaining a seal and shielding the oil unloading passage 50. A first end of the second spring 53 is fixedly connected to the second sealing plug 52, while a second end of the second spring 53 is fixedly connected to the inner wall of the oil unloading passage 50.

[0027] In the initial state, the first sealing plug 42 blocks the water inlet 41 , and the second sealing plug 52 blocks the oil unloading channel 50 .

[0028] When protective tube 11 is compressed downward, the pressure in the oil reservoir increases, pushing second sealing plug 52 downward until oil discharge channel 50 connects with oil outlet hole 51. At this point, second spring 53 is compressed, allowing some of the oil in the reservoir to flow out through oil outlet hole 51 and oil discharge channel 50, reducing the pressure in the reservoir. When the pressure is balanced, the restoring force of second spring 53 returns the second sealing plug 52 to its original position.

[0029] When the protective tube 11 extends upward, the pressure in the oil storage tank decreases, and the small amount of water in the soil layer pushes the first sealing plug 42 inward until the water inlet channel 40 connects with the water inlet hole 41. At this time, the first spring 43 is compressed, and the water in the soil layer passes through the water inlet channel 40 and the water inlet hole 41 and enters the oil storage tank, increasing the pressure in the oil storage tank. When the pressure is balanced, the first sealing plug 42 returns to its original position due to the restoring force of the first spring 43.

[0030] The present invention can regulate the pressure in the oil storage tank so that the pressure in the oil storage tank remains constant. In addition, the water inlet channel 40 guides the movement of the first sealing plug 42, and the oil outlet hole 51 guides the movement of the second sealing plug 52, thereby making the oil discharge process and water intake process more stable.

[0031] In one embodiment, a first slot 44 extending outward is formed on the inner wall of the water inlet channel 40 . The first slot 44 is located outside the first sealing plug 42 . A first filter screen 45 is disposed in the first slot 44 .

[0032] When the protective tube 11 extends upward, the pressure in the oil storage tank decreases, and the first filter screen 45 can filter the water entering the water inlet channel 40, filtering out impurities such as mud and sand therein, and preventing these impurities from entering the interior of the utility model and causing blockage.

[0033] In one embodiment, a second slot 54 extending outward is formed on the inner wall of the oil outlet hole 51 , and a second filter screen 55 is disposed in the second slot 54 .

[0034] The second filter screen 55 can also play a filtering role, filtering out impurities such as mud and sand in the water in the soil layer, and preventing these impurities from entering the interior of the utility model and causing blockage.

[0035] In one embodiment, an annular groove 31 is opened inside the lower sealing assembly. The annular groove 31 is located inside the first clamping groove 44 and the second clamping groove 54 . The annular groove 31 is communicated with both the first clamping groove 44 and the second clamping groove 54 .

[0036] When the protective tube 11 is compressed downward, the pressure in the oil storage tank increases, pushing the second sealing plug 52 downward until the oil discharge channel 50 is connected to the oil outlet hole 51. At this time, the second spring 53 is compressed, and some of the oil in the oil storage tank enters the oil outlet hole 51 and the oil discharge channel 50, and some enters the annular groove 31. The oil entering the annular groove 31 passes through the first filter screen 45 and flows out, thus backwashing the first filter screen 45 and completing the automatic cleaning of the first filter screen 45.

[0037] In one embodiment, the first slot 44 is adapted to the first filter screen 45 to prevent the first filter screen 45 from shaking, thereby further improving the stability of the present invention.

[0038] In one embodiment, the second slot 54 is adapted to the second filter screen 55 to prevent the second filter screen 55 from shaking, thereby further improving the stability of the present invention.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bottom sliding rod oil storage structure for a stratum settlement monitoring layer marker, comprising an oil storage tank and a lower sealing assembly, characterized in that: The outer peripheral surface of the lower sealing assembly is provided with a water inlet channel and an oil discharge channel extending inwardly; The water inlet channel is connected to the oil storage tank via a water inlet hole. A first sealing plug and a first spring are provided in the water inlet channel. The first sealing plug is in sliding contact with the inner wall of the water inlet channel and maintains a seal. The first sealing plug blocks the water inlet hole. A first end of the first spring is fixedly connected to the first sealing plug, and a second end of the first spring is fixedly connected to the inner wall of the water inlet channel. The oil unloading passage is connected to the oil storage tank through an oil outlet hole. A second sealing plug and a second spring are provided in the oil outlet hole. The second sealing plug is in sliding contact with the inner wall of the oil outlet hole and maintains a seal. The second sealing plug blocks the oil unloading passage. The first end of the second spring is fixedly connected to the second sealing plug, and the second end of the second spring is fixedly connected to the inner wall of the oil unloading passage.

2. The bottom sliding rod oil storage structure of the stratum subsidence monitoring layer marker according to claim 1 is characterized by: A first card slot extending outward is formed on the inner wall of the water inlet channel. The first card slot is located outside the first sealing plug. A first filter screen is provided in the first card slot.

3. The bottom sliding rod oil storage structure of the stratum subsidence monitoring layer marker according to claim 2 is characterized by: A second slot extending outward is provided on the inner wall of the oil outlet hole, and a second filter screen is provided in the second slot.

4. The bottom sliding rod oil storage structure of the stratum subsidence monitoring layer marker according to claim 3 is characterized by: An annular groove is formed inside the lower sealing assembly. The annular groove is located inside the first clamping groove and the second clamping groove, and is communicated with both the first clamping groove and the second clamping groove.

5. The bottom sliding rod oil storage structure of the stratum subsidence monitoring layer marker according to claim 2 is characterized by: The first card slot is adapted to the first filter screen.

6. The bottom sliding rod oil storage structure of the stratum subsidence monitoring layer marker according to claim 3 is characterized by: The second card slot is adapted to the second filter screen.

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