Orifice protection device

Abstract

The utility model relates to an orifice protection device. The orifice protection device comprises a device body, a liquid level sensor and a processor. The device body is used for being inserted into a drilling hole, the device body comprises two cavities communicating with each other, and liquid is contained in the cavities; the liquid level sensor is arranged in any cavity and used for detecting the initial liquid level Ha of liquid in the cavity where the liquid level sensor is located when the device body is located at the first position; when the device body is located at the second position, the stop liquid level Hb of the liquid in the cavity where the device body is located is detected; the processor is fixedly arranged on the device body, the processor is electrically connected to the liquid level sensor, the processor is used for detecting delta H and giving out a prompt when delta H is not equal to 0, and delta H = Hb-Ha. The orifice protection device can give a prompt when the conditions such as displacement or upwarp and inclination are caused by external force, the conditions can be found in time, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of geotechnical engineering exploration devices, and particularly to an orifice protection device. Background Art

[0002] Drilling is an important means of geotechnical engineering investigation. During drilling, the drilling depth needs to reach the design requirements. When the expected depth of the borehole that meets the design requirements is too deep, or the formation is hard and the penetration rate is slow, or the core is relatively broken and it is difficult to take the core, the construction period of the drilling work is usually long.

[0003] When these boreholes with relatively deep depths and long construction periods are located in densely populated areas or living areas, for boreholes that do not reach the final hole condition on the day of opening and need to continue operation the next day, after the drilling equipment is withdrawn from the site, the orifice is exposed on the ground surface. If pedestrians pass by carelessly, their feet or vehicle tires may fall into the hole, posing a great potential safety hazard. In areas with limestone or very active groundwater, groundwater may gush out of the orifice, and the surface water accumulation at the drilling site will affect the local pedestrians and the environment. Currently, a shielding structure similar to a manhole cover is usually used to cover the orifice, but this shielding structure is prone to displacement, flipping, tilting, etc. under external forces and is difficult to be detected in time, still posing a safety hazard. Utility Model Content

[0004] Based on this, in view of the problem that the current orifice shielding structure is prone to displacement, flipping, tilting, etc. under external forces, it is necessary to provide an orifice protection device.

[0005] An orifice protection device includes:

[0006] A device body for being inserted into a drilling hole. The device body includes two mutually communicating cavities, and liquids are contained in both cavities;

[0007] A liquid level sensor is arranged in any one of the cavities. The liquid level sensor is used to detect the initial liquid level H of the liquid in the cavity where it is located when the device body is in the first position a ; and to detect the final liquid level H of the liquid in the cavity where it is located when the device body is in the second position b ; and

[0008] A processor is fixedly arranged on the device body. The processor is electrically connected to the liquid level sensor. The processor is used to detect ΔH and issue a prompt when ΔH≠0, where ΔH = H b -H a .

[0009] In one embodiment, the liquid level sensor includes two liquid level sensors respectively disposed in each of the cavities. The two liquid level sensors are configured to detect the initial liquid level H of the liquid in the respective cavity when the device body is in the first position. a And to detect the final liquid level H of the liquid in the respective cavity when the device body is in the second position. b1 and H b2 The processor is configured to detect ΔH1 and ΔH2 respectively, and issue a prompt when ΔH1 ≠ ΔH2, where ΔH1 = H b1 - H a and ΔH2 = H b2 - H a .

[0010] In one embodiment, the device body includes four interconnected cavities. The four cavities are arranged in a ring around the device body. The liquid level sensor includes four liquid level sensors respectively disposed in the four cavities. The four liquid level sensors are configured to detect the initial liquid level H of the liquid in the respective cavity when the device body is in the first position. a And to detect the final liquid level H of the liquid in the respective cavity when the device body is in the second position. b1 、H b2 、H b3 and H b4 The processor is configured to detect ΔH4, ΔH3, ΔH2 and ΔH1 respectively, and issue a prompt when any two of ΔH4, ΔH3, ΔH2 and ΔH1 are not equal, where ΔH4 = H b4 - H a 、ΔH3 = H b3 - H a 、ΔH2 = H b2 - H a 、ΔH1 = H b1 - H a .

[0011] In one embodiment, the four cavities are symmetrically arranged about the axis of the device body.

[0012] In one embodiment, the device body includes a cylinder and a communicating vessel. The cylinder has a receiving cavity. The communicating vessel is fixedly disposed in the receiving cavity. The communicating vessel includes two interconnected cavities. The processor is fixedly disposed on the cylinder.

[0013] In one embodiment, the cylinder further has a top port communicating with the receiving cavity. The device body further includes a cover. The cover seals the top port. The processor is fixedly disposed on the cover.

[0014] In one embodiment, the radial dimension of the cover body is greater than the radial dimension of the cylindrical body.

[0015] In one embodiment, the cylindrical body further has a bottom port communicating with the accommodating cavity, the orifice protection device further includes a water level sensor, the water level sensor is fixedly arranged in the accommodating cavity and close to the bottom port, and the water level sensor is electrically connected to the processor.

[0016] In one embodiment, the length L of the cylindrical body is 10 cm to 15 cm, and / or the thickness r of the cylindrical body is 1 mm to 2 mm.

[0017] In one embodiment, the orifice protection device further includes a light-controlled induction lamp, the light-controlled induction lamp is fixedly arranged on the device body, and the light-controlled induction lamp is electrically connected to the processor.

[0018] The device body of the above orifice protection device can block the drilling hole and can avoid safety problems caused by the exposure of the drilling hole. The device body being in the first position means that the device body is in the predetermined installation position of the drilling hole without displacement or skew. The device body being in the second position means that the device body deviates from the predetermined installation position and tilts. When the device body is in the first position, according to the principle of communicating vessels, the liquid levels in the two mutually communicating cavities in the device body are flush. At this time, the liquid level in one of the cavities provided with the liquid level sensor has an initial liquid level H. a When the device body is in the second position, the device body tilts, and the liquid levels in the two cavities change. If the device body tilts towards the side of the cavity provided with the liquid level sensor, the liquid level in the cavity provided with the liquid level sensor rises to reach the termination liquid level H. b The liquid level sensor transmits the initial liquid level signal and the termination liquid level signal to the processor. After receiving the signal, the processor detects the termination liquid level H. b is greater than the initial liquid level H. a At this time, ΔH is greater than 0, and the processor issues a prompt at this time. If the device body tilts towards the side of the cavity without the liquid level sensor, the liquid level in the cavity without the liquid level sensor rises, and the liquid level in the cavity provided with the liquid level sensor drops to reach the termination liquid level H. b The liquid level sensor also transmits the initial liquid level signal and the termination liquid level signal to the processor. After receiving the signal, the processor detects the termination liquid level H. b is less than the initial liquid level H. a At this time, ΔH is less than 0, and the processor also issues a prompt at this time. Thus, when the device body tilts and warps, a prompt can be issued in time, which is convenient for the staff to adjust the position of the device body in time and return the device body to the first position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the disclosed drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of an orifice protection device provided by an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of an orifice protection device provided by an embodiment of the present application inserted into a drilling hole.

[0022] Figure 3 It is a schematic diagram of an orifice protection device provided by an embodiment of the present application when the device body is in the first position.

[0023] Figure 4 It is a schematic diagram of an orifice protection device provided by an embodiment of the present application when the device body is in the second position.

[0024] Explanation of reference numerals: 100, orifice protection device; 1, device body; 11, cylinder; 111, accommodation cavity; 112, top port; 113, bottom port; 12, cover body; 13, water level sensor; 14, communicating vessel; 141, cavity; 2, liquid level sensor; 3, processor; 4, light-controlled induction lamp; 200, drilling hole; A, first position; B, second position. Detailed Embodiments

[0025] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific embodiments of the present application with reference to the drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] Please refer to Figure 1 , an embodiment of the present application provides an orifice protection device 100, including a device body 1, a liquid level sensor 2, and a processor 3. Please refer to Figure 2 , the device body 1 is used to be inserted into the drilling hole 200. Please refer to Figure 3 and Figure 4, the device body 1 includes two interconnected cavities 141, and both cavities 141 are filled with liquid; the liquid level sensor 2 is disposed in any one of the cavities 141, and the liquid level sensor 2 is used to detect the initial liquid level H of the liquid in the cavity 141 where it is located when the device body 1 is in the first position A a ; when the device body 1 is in the second position B, it detects the final liquid level H of the liquid in its own cavity 141 b ; the processor 3 is fixedly installed on the device body 1, the processor 3 is electrically connected to the liquid level sensor 2, and the processor 3 is used to detect ΔH and issue a prompt when ΔH≠0, where ΔH = H b -H a . The device body 1 of the orifice protection device 100 provided by the embodiment of the present application can block the drilling hole 200 and avoid safety problems caused by the exposure of the drilling hole 200. The device body 1 being in the first position A means that the device body 1 is in the predetermined installation position of the drilling hole 200 without displacement or deviation. The device body 1 being in the second position B means that the device body 1 deviates from the predetermined installation position and tilts. Please refer to Figure 3 , when the device body 1 is in the first position A, according to the principle of communication of the communicating vessel, the liquid levels in the two interconnected cavities 141 in the device body 1 are flush, and at this time, the liquid level in one of the cavities 141 where the liquid level sensor 2 is provided has an initial liquid level H a . Please refer to Figure 4 , when the device body 1 is in the second position B, the device body 1 is tilted, and the liquid levels in the two cavities 141 change. If the device body 1 tilts towards the side of the cavity 141 where the liquid level sensor 2 is provided, the liquid level in the cavity 141 where the liquid level sensor 2 is provided rises to reach the final liquid level H b , the liquid level sensor 2 transmits the initial liquid level signal and the final liquid level signal to the processor 3. After receiving the signal, the processor 3 detects the final liquid level H b is greater than the initial liquid level H a , ΔH is greater than 0, and at this time the processor 3 issues a prompt. If the device body 1 tilts towards the side of the cavity 141 where the liquid level sensor 2 is not provided, the liquid level in the cavity 141 where the liquid level sensor 2 is not provided rises, and the liquid level in the cavity 141 where the liquid level sensor 2 is provided drops to reach the final liquid level H b , the liquid level sensor 2 also transmits the initial liquid level signal and the final liquid level signal to the processor 3. After receiving the signal, the processor 3 detects the final liquid level H b is less than the initial liquid level H a , ΔH is less than 0, and at this time the processor 3 also issues a prompt. Thus, when the device body 1 tilts and warps, a prompt can be issued in time, facilitating the staff to adjust the position of the device body 1 in time and return the device body 1 to the first position

[0027] The liquid level sensor 2 in the embodiments of the present application can be a capacitive liquid level sensor or an ultrasonic liquid level sensor. The capacitive liquid level sensor can detect the liquid level by using the change of capacitance. The capacitive liquid level sensor consists of a first electrode and a second electrode. The first electrode is connected to the container wall, and the second electrode moves as the liquid level changes. When the liquid level changes, the capacitance value between the first electrode and the second electrode also changes, and the liquid level height can be determined according to the change of the capacitance value. The ultrasonic liquid level sensor measures the liquid level height by using the propagation time of ultrasonic waves in the liquid. The ultrasonic liquid level sensor emits ultrasonic waves to the liquid surface, and the ultrasonic waves are received by the ultrasonic liquid level sensor after being reflected by the liquid surface. The ultrasonic liquid level sensor can calculate the liquid level height by measuring the propagation time of the ultrasonic waves.

[0028] The processor 3 in the embodiments of the present application refers to a device that can integrate signal reception and signal transmission. The processor 3 includes a circuit board and a signal reception unit, a signal processing unit, and a signal transmission unit arranged on the circuit board. The liquid level sensor 2 is electrically connected to the signal reception unit through a signal line buried in the device body 1. The liquid level sensor 2 transmits the initial liquid level signal and the termination liquid level signal to the signal reception unit. After receiving the signal, the signal reception unit transmits the signal to the signal processing unit for calculation. When it is detected that ΔH≠0, the detection result signal is transmitted to the signal transmission unit, and the signal transmission unit gives a prompt according to the detection structure signal.

[0029] Please refer to Figure 3 and Figure 4 , in some embodiments, the liquid level sensor 2 includes two liquid level sensors 2 respectively arranged in each cavity 141. The two liquid level sensors 2 are used to detect the initial liquid level H of the liquid in the cavity 141 where they are located when the device body 1 is in the first position A a , and to detect the termination liquid level H of the liquid in the cavity 141 where they are located when the device body 1 is in the second position B b1 and H b2 , the processor 3 is used to detect ΔH1 and ΔH2 respectively, and give a prompt when ΔH1≠ΔH2, where ΔH1 = H b1 -H a , ΔH2 = H b2 -H a . Please refer to Figure 3 , it can be understood that when the device body 1 is in the first position A, according to the principle of the communicating vessel 14, the liquid levels in the two cavities 141 where the two liquid level sensors 2 are located are flush, and the initial liquid levels H a in both are the same. Please refer to Figure 4When the device body 1 is in the second position B, the device body 1 tilts. When the device body 1 tilts toward the cavity 141 on one side, the liquid level in the cavity 141 on the side rises, and the liquid level sensor 2 in the cavity 141 on the side detects that the liquid is at the final liquid level Hb1. The liquid level in the cavity 141 on the other side drops, and the liquid level sensor 2 in the cavity 141 on the other side detects that the liquid is at the final liquid level Hb2. The liquid level sensors 2 in the cavities 141 on both sides transmit their initial liquid level signals and final liquid level signals to the processor 3. The processor 3 detects ΔH1=H b1 -H a >0,ΔH2=H b2 -H a <0, that is, ΔH1≠ΔH2, at this time the processor 3 issues a prompt, indicating that the device body 1 is tilted.

[0030] A liquid level sensor 2 is correspondingly arranged in each cavity 141. By comparing the measurement values of the two liquid level sensors 2, the impact of a single sensor failure or error can be reduced and the detection accuracy can be improved. When the performance of a certain liquid level sensor 2 is degraded or damaged, the other liquid level sensor 2 can still work normally. The two liquid level sensors 2 can respectively measure the liquid level changes in the two cavities 141. By comparing the values of ΔH1 and ΔH2, the degree of deflection of the device body 1 can be known. For example, when the absolute value of ΔH1 is greater than the absolute value of ΔH2, it means that the degree of deflection of the cavity 141 on the side of the device body 1 where the final liquid level is Hb1 is greater.

[0031] In some embodiments, the device body 1 includes four interconnected cavities 141, and the four cavities 141 are arranged on the device body 1 in a ring. Figure 1 The liquid level sensor 2 includes four liquid level sensors 2 disposed in four cavities 141. The four liquid level sensors 2 are used to detect the initial liquid level H of the liquid in each cavity 141 when the device body 1 is in the first position. a , and when the device body 1 is in the second position, detecting the final liquid level H of the liquid in the cavity 141 where each of them is located b1 , H b2 , H b3 and H b4 , processor 3 is used to detect ΔH4, ΔH3, ΔH2 and ΔH1 respectively, and issue a prompt when any two of ΔH4, ΔH3, ΔH2 and ΔH1 are not equal, where ΔH4=H b4 -H a , ΔH3=H b3 -H a , ΔH2=H b2 -H a , ΔH1=H b1 -H aIt can be understood that when the device body 1 is in the first position, the liquid levels in the four cavities 141 are all flush, and the four cavities 141 all have the same initial liquid level H. a When the device body 1 is in the second position, the device body 1 tilts and flips, and the liquid levels in the four cavities 141 will all change. Since the liquid level in at least one cavity 141 rises and the liquid level in another cavity 141 drops, ΔH4 = H b4 -H a 、ΔH3 = H b3 -H a 、ΔH2 = H b2 -H a 、ΔH1 = H b1 -H a Among them, at least two will also be unequal. The liquid level sensors 2 in the four cavities 141 transmit the end liquid level signals to the processor 3. When the processor 3 detects that any two of ΔH4, ΔH3, ΔH2, and ΔH1 are unequal, a prompt is issued. In the embodiment of the present application, by providing four cavities 141 arranged around the device body 1 and four liquid level sensors 2, the accuracy of liquid level detection can be further improved. If one of the four liquid level sensors 2 detects a liquid level change, the processor 3 can issue a prompt.

[0032] The embodiment of the present application does not limit the setting positions of the four cavities 141. In some embodiments, the four cavities 141 are symmetrically arranged with respect to the axis of the device body 1, which can enable the four cavities 141 and the liquid level sensors 2 arranged therein to be more dispersedly arranged on the device body 1. When the device body 1 tilts and flips, the liquid level sensors 2 can detect the liquid level changes in more directions, improving the detection accuracy.

[0033] Next, the structure of the device body 1 will be specifically described.

[0034] In an alternative embodiment, the cavity 141 in the device body 1 can be integrally formed within the device body 1. Please refer to Figure 3 and Figure 4 , in other alternative embodiments, in some embodiments, the device body 1 includes a cylinder 11 and a communicating vessel 14. The cylinder 11 has a receiving cavity 111, the communicating vessel 14 is fixedly arranged in the receiving cavity 111, the communicating vessel 14 includes two mutually communicating cavities 141, and the processor 3 is fixedly arranged on the cylinder 11. The cylinder 11 can facilitate the insertion of the orifice protection device 100 into the drilling hole 200. Adding the communicating vessel 14 to form the cavity 141 can facilitate installation and processing. It should be noted that the communicating vessel 14 in the embodiment of the present application refers to a fully enclosed communicating vessel 14 to prevent the liquid in the communicating vessel 14 from overflowing when the device body 1 tilts and flips.

[0035] In an alternative embodiment, the communicating vessel 14 may include three, four or other numbers of interconnected cavities 141. One, two, three, four or other numbers of liquid level sensors 2 may be provided in the communicating vessel 14.

[0036] In an alternative embodiment, the device body 1 may be a cylindrical structure integrally formed with the cylindrical body 11. Please refer to Figure 1 , in other embodiments, the device body 1 is a cylindrical structure formed by assembling the cylindrical body 11 and the cover body 12.

[0037] Please refer to Figure 1 , in some embodiments, the cylindrical body 11 further has a top port 112 communicating with the accommodation cavity 111, the device body 1 further includes a cover body 12, the cover body 12 covers the top port 112, and the processor 3 is fixedly provided on the cover body 12. The device body 1 includes the cylindrical body 11 and the cover body 12, which is convenient for processing and can facilitate the installation of the communicating vessel 14 and the processor 3.

[0038] In an alternative embodiment, the cylindrical body 11 may be a cubic cylinder or a cylindrical cylinder, the cover body 12 matches the cross-sectional shape of the cylindrical body 11, and the cover body 12 may be a cubic cover or a circular cover. The specific shapes of the cylindrical body 11 and the cover body 12 are not limited in the embodiments of the present application, and any shape that can match the shape of the drilling hole 200 is within the protection scope of the embodiments of the present application.

[0039] Please refer to Figure 1 and Figure 2 , in some embodiments, the radial dimension of the cover body 12 is greater than that of the cylindrical body 11. When the cover body 12 covers the cylindrical body 11, the edge of the cover body 12 protrudes from the cylindrical body 11. When the cylindrical body 11 is inserted into the drilling hole 200, the cover body 12 can be left on the ground, which is convenient for taking out and placing the device body 1.

[0040] Please refer to Figure 1 , when the drilling hole 200 is located in a karst development site or a site with a high groundwater level, groundwater gushing may occur. In some embodiments, the cylindrical body 11 further has a bottom port 113 communicating with the accommodation cavity 111, the orifice protection device 100 further includes a water level sensor 13, the water level sensor 13 is fixedly provided in the accommodation cavity 111 and is disposed close to the bottom port 113, and the water level sensor 13 is electrically connected to the processor 3. When groundwater surges into the accommodation cavity 111 in the cylindrical body 11 from the bottom port 113, the water level sensor 13 can detect the water level of the groundwater and transmit the water level signal of the groundwater to the processor 3, and the processor 3 can give a prompt for the influx of groundwater. The water level sensor 13 in the embodiments of the present application may be a capacitive liquid level sensor or an ultrasonic liquid level sensor.

[0041] Please refer to Figure 1, in some embodiments, the orifice protection device 100 further includes a light-controlled induction lamp 4. The light-controlled induction lamp 4 is fixedly installed on the device body 1, and the light-controlled induction lamp 4 is electrically connected to the processor 3. The light-controlled induction lamp 4 is a well-known lamp to those skilled in the art. The light-controlled induction lamp is charged by solar energy during the day and automatically lights up and flashes when the light is dim at night. This lamp can remind passing pedestrians and vehicles to avoid stepping on or running over the drilling area. Further, in order to highlight the prompting effect of the light-controlled induction lamp 4, the light-controlled induction lamp 4 is arranged on the cover body 12 of the device body 1.

[0042] Please refer to Figure 2 , in some embodiments, the length L of the cylinder 11 is 10 cm to 15 cm. The length L of the cylinder 11 can be any value within the above range, for example, it can be 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, etc. The thickness r of the cylinder 11 is 1 mm to 2 mm. The thickness r of the cylinder 11 can be any value within the above range, for example, it can be 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, etc. The thickness d of the cover body 12 is 2 cm to 5 cm. The thickness d of the cover body 12 can be any value within the above range, for example, it can be 2 cm, 2.5 cm, 3 cm, 3.5 cm, 4 cm, 4.5 cm, 5 cm, etc.

[0043] In the description of the present application, it should be understood that if there appear such terms as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 a limitation to the present application.

[0044] In addition, if there appear such terms as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there appears the term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0048] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0049] The above-described embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

1. An orifice protection device, characterized in that, Comprising: A device body for being inserted into a drilling hole, the device body includes two interconnected cavities, and liquids are contained in the cavities; A liquid level sensor is disposed in any one of the cavities. The liquid level sensor is used to detect the initial liquid level H of the liquid in the cavity where it is located when the device body is in the first position. a When the device body is in the second position, it detects the final liquid level H of the liquid in the cavity where it is located. b ; And A processor is fixedly installed on the device body. The processor is electrically connected to the liquid level sensor. The processor is used to detect ΔH and issue a prompt when ΔH ≠ 0, where ΔH = H b -H a .

2. The orifice protection device according to claim 1, characterized in that The liquid level sensor includes two liquid level sensors respectively disposed in each of the cavities. The two liquid level sensors are used to detect the initial liquid level H of the liquid in the respective cavities when the device body is in the first position a , and to detect the final liquid level H of the liquid in the respective cavities when the device body is in the second position b1 and H b2 . The processor is used to detect ΔH1 and ΔH2 respectively, and issue a prompt when ΔH1 ≠ ΔH2, where ΔH1 = H b1 - H a , ΔH2 = H b2 - H a .

3. The orifice protection device according to claim 2, characterized in that, The device body includes four interconnected cavities, and the four cavities are arranged around the device body. The liquid level sensors include four liquid level sensors respectively disposed in the four cavities. The four liquid level sensors are configured to detect the initial liquid level H of the liquid in their respective cavities when the device body is in the first position a , and to detect the final liquid level H of the liquid in their respective cavities when the device body is in the second position b1 , H b2 , H b3 and H b4 . The processor is configured to detect ΔH4, ΔH3, ΔH2 and ΔH1 respectively, and issue a prompt when any two of ΔH4, ΔH3, ΔH2 and ΔH1 are not equal, where ΔH4 = H b4 - H a , ΔH3 = H b3 - H a , ΔH2 = H b2 - H a , ΔH1 = H b1 - H a .

4. The orifice protection device according to claim 3, characterized in that The four cavities are symmetrically arranged with respect to the axis of the device body.

5. The orifice protection device according to claim 1, characterized in that, The device body includes a cylinder and a communicating vessel, the cylinder has a receiving cavity, the communicating vessel is fixedly arranged in the receiving cavity, the communicating vessel includes the two interconnected cavities, and the processor is fixedly arranged on the cylinder.

6. The orifice protection device according to claim 5, characterized in that, The cylinder also has a top port communicating with the receiving cavity, the device body further includes a cover body, the cover body seals the top port, and the processor is fixedly arranged on the cover body.

7. The orifice protection device according to claim 6, characterized in that, The radial dimension of the cover body is greater than the radial dimension of the cylinder.

8. The orifice protection device according to claim 5, characterized in that, The cylinder also has a bottom port communicating with the receiving cavity, the orifice protection device further includes a water level sensor, the water level sensor is fixedly arranged in the receiving cavity and is close to the bottom port, and the water level sensor is electrically connected to the processor.

9. The orifice protection device according to claim 5, wherein, The length L of the cylinder is 10 cm to 15 cm, and / or the thickness r of the cylinder is 1 mm to 2 mm.

10. The orifice protection device according to any one of claims 1 to 9, characterized in that, The orifice protection device further includes a light-controlled induction lamp, the light-controlled induction lamp is fixedly arranged on the device body, and the light-controlled induction lamp is electrically connected to the processor.

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