Automatic control device for water curtain hole of water-sealed cave depot and water-sealed cave depot

Abstract

The invention discloses an automatic control device for a water curtain hole of a water-sealed cave depot and the water-sealed cave depot, and the device comprises a control box which is provided with a mounting cavity, and a measurement and control pipeline is arranged in the mounting cavity and is connected with a water distribution pipe; a regulating valve, a flow meter and a water pressure sensor are mounted on the measurement and control pipeline; a connecting bulge is arranged at the rear part of the control box; the mounting plate is positioned on the rear side of the control box and is provided with a mounting hole; the connecting and fixing assembly penetrates through the mounting hole, one end, deviating from the control box, of the connecting and fixing assembly is embedded and fixed in a wall hole, and the other end is provided with a connector; one end of the communicating branch pipe is communicated with the water distribution pipe, the other end is communicated with the water curtain hole, and a first control valve is mounted; and one end of the drainage branch pipe is communicated with the water distribution pipe and is provided with a second control valve. The regulating valve, the flow meter and the water pressure sensor are integrated in the control box, so that the reliability and the stability of the system are improved. And through cooperation of the connector and the connecting protrusion, rapid installation and fixation of the control box are achieved, and the integrated design is also convenient for later maintenance and overhaul.

Description

Technical Field

[0001] The present invention relates to the technical field of water curtain hole control, in particular to an automatic control device for a water curtain hole of a water-sealed cavern and the water-sealed cavern. Background Art

[0002] As a special underground oil storage facility, the safety and stability of water-sealed caverns are of paramount importance. The water curtain system is an important component of water-sealed caverns. By forming a stable water curtain in the water curtain hole, it can effectively isolate the contact between oil and gas and air, preventing oil and gas volatilization and fire accidents. Precise control of the water curtain hole is the key to ensuring the stable operation of the water curtain system. When the pressure in the water curtain hole is low, water needs to be injected into the water curtain hole. When the pressure in the water curtain hole is high, water needs to be drained to reduce the water pressure. In traditional methods, components such as pressure sensors, flow meters, and regulating valves are installed separately, lacking integrated protection and easily affected by environmental factors, resulting in reduced system reliability. If the pressure sensors, flow meters, regulating valves and other components are integrated, the overall installation and fixation will be more troublesome. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an automatic control device for a water curtain hole of a water-sealed cavern.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: An automatic control device for a water curtain hole of a water-sealed cavern comprises: a control box provided with an installation cavity, a measurement and control pipeline provided in the installation cavity, one end of the measurement and control pipeline extending out of the control box for communicating with a water supply pipe, and the other end extending out of the control box and connected to a water distribution pipe; a regulating valve, a flow meter and a water pressure sensor are installed on the measurement and control pipeline; a connecting protrusion is provided at the rear of the control box; a mounting plate is located on the rear side of the control box and is provided with a mounting hole; a connecting and fixing assembly is passed through the mounting hole, one end of which is away from the control box and is used to be embedded in and fixed to a wall hole, and the other end of which is provided with a connecting head, the connecting head cooperates with the connecting protrusion to achieve limiting of the control box; a connecting branch pipe, one end of which is connected to an end of the water distribution pipe away from the measurement and control pipeline, and the other end is connected to the water curtain hole, a first control valve is installed on the connecting branch pipe; a drainage branch pipe, one end of which is connected to an end of the water distribution pipe away from the measurement and control pipeline, and a second control valve is installed on the drainage branch pipe.

[0005] Furthermore, a locking piece is included, which is installed between the mounting plate and the control box and is used to keep the connecting head and the connecting protrusion matched.

[0006] Furthermore, the locking member has a locked state and an unlocked state; the locking member is movably installed between the mounting plate and the control box to achieve switching between the locked state and the unlocked state.

[0007] Furthermore, the connection and fixing assembly includes a fixed insert and a threaded rod; the rear end peripheral wall of the fixed insert is connected to a tightening block, the tightening block is hinged to the fixed insert, and the tightening block can shrink inward so as to be inserted into the wall hole along with the fixed insert; the threaded rod is threadedly connected to the fixed insert, and the threaded rod can push the tightening block to expand outward so as to make close contact with the inner wall of the wall hole.

[0008] Furthermore, the connecting head includes a connecting column, a shrinking column and an expanding column arranged in sequence toward the front, and the diameter of the shrinking column is smaller than that of the connecting column and the expanding column; the connecting protrusion is provided with an embedding groove, and the bottom of the embedding groove is provided with an opening for the expanding column to be embedded; the rear side of the embedding groove is provided with an avoidance notch, the bottom of the avoidance notch is opened and the width of the avoidance notch is adapted to the diameter of the shrinking column; when the connecting head and the connecting protrusion are matched, the shrinking column is embedded in the avoidance notch, and the expanding column is embedded in the embedding groove; the locking piece is a limiting cylinder, and the limiting cylinder is slidably sleeved on the connecting and fixing assembly; a spring is provided between the limiting cylinder and the mounting plate, and the spring is used to push the limiting cylinder to wrap the connecting head and the connecting protrusion so that the connecting head and the connecting protrusion remain matched.

[0009] Furthermore, the inner ring at the front end of the limiting cylinder is provided with a locking protrusion, which can pass through the avoidance gap into the embedding groove or be staggered with the avoidance gap and abut against the front end surface of the connecting protrusion under the action of a spring.

[0010] Furthermore, a guide cylinder is provided on the front side of the mounting plate and is arranged around the mounting hole, and the rear end of the spring is sleeved on the guide cylinder.

[0011] Furthermore, an embedded cylinder is provided at the rear end of the limiting cylinder, and the outer diameter of the embedded cylinder is larger than that of the limiting cylinder; the front end of the spring extends into the embedded cylinder; and a clamping block extending radially inward is provided at the rear end of the embedded cylinder.

[0012] Furthermore, the mounting plate is provided with a support plate, and the support plate is used to contact the bottom of the control box; the support plate and the bottom of the mounting plate are provided with reinforcing ribs.

[0013] The present invention also provides a water-sealed cavern, comprising a plurality of water-sealed cavern water curtain hole automatic control devices.

[0014] The present invention has the following beneficial effects: Integrating the regulating valve, flowmeter, and water pressure sensor within the control box eliminates the vulnerability of components to environmental factors in traditional decentralized installation methods, improving system reliability and stability. The coordinated use of connectors and protrusions allows for quick installation and securement of the control box, and the integrated design also facilitates subsequent maintenance and inspection. The water pressure sensor and flowmeter monitor the pressure and flow within the water curtain orifice in real time, combined with precise adjustment of the regulating valve, for precise control of the orifice. The connecting branch pipe, drainage branch pipe, and the first and second control valves ensure switching control of the water curtain orifice's water filling and drainage.

[0015] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 This is a structural diagram of the control box in its exploded state; Figure 3 Schematic diagram of the working principle of an embodiment of the present invention; Figure 4 yes Figure 1 Schematic diagram of the decomposed state structure; Figure 5 yes Figure 4 A magnified view of point A; Figure 6 It is a schematic diagram of the exploded structure of the mounting plate and the connecting and fixing components; Figure 7 It is a schematic diagram of the connection structure of the fixed insert and the tensioning block; Figure 8 is a partial cross-sectional view of a connection and fixing assembly according to an embodiment of the present invention; Figure 9 It is a partial cross-sectional view of the locking member in the locked state; Figure 10 It is a partial cross-sectional view of the locking member in the unlocked state.

[0017] Legend: Water supply pipe 101, water curtain hole 102; Control box 100, installation cavity 110, measurement and control pipeline 120, regulating valve 121, flow meter 122, water pressure sensor 123, connecting protrusion 130, embedding groove 131, avoidance notch 132, box body 140, box cover 150, water distribution pipe 160; Mounting plate 200, mounting hole 210, guide cylinder 220, support plate 230, reinforcing rib 231; Connecting and fixing assembly 300, connecting head 310, connecting column 311, shrinking column 312, expanding column 313, stud 314, fixing insert 320, limiting head 321, mounting opening 322, limiting inclined surface 323, threaded rod 330, first cylindrical section 331, threaded hole 332, polygonal column section 333, tensioning block 340, pushing arm 341, tensioning arm 342; Locking member 400, locking protrusion 410, spring 420, embedded cylinder 430, and locking block 431; Connecting branch pipe 500 and first control valve 510; Drainage branch pipe 600 and second control valve 610. DETAILED DESCRIPTION

[0018] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] Please refer to Figures 1 to 3In a preferred embodiment of the present invention, an automatic control device for a water curtain hole of a water seal cavern is provided, comprising a control box 100, a mounting plate 200, a connecting and fixing assembly 300, a connecting branch pipe 500 and a drainage branch pipe 600.

[0023] The control box 100 is provided with an installation cavity 110, in which a measurement and control line 120 is provided. One end of the measurement and control line 120 extends out of the control box 100 for communication with the water supply pipe 101, and the other end extends out of the control box 100 and is connected to the water distribution pipe 160. A regulating valve 121, a flow meter 122 and a water pressure sensor 123 are installed on the measurement and control line 120. A connecting protrusion 130 is provided at the rear of the control box 100. Figure 2 The control box 100 includes a box body 140 and a box cover 150. The box cover 150 is hinged to one side of the box body 140 to realize the opening and closing of the installation cavity 110. The mounting plate 200 is located on the rear side of the control box 100, and the mounting plate 200 is provided with a mounting hole 210. It is understandable that a communication module and a PCB control board are usually installed in the installation cavity 110, and the surrounding wall of the installation cavity 110 is also provided with a wire hole for the entry of the wiring harness to realize signal transmission and power input with the outside. It is understandable that the measurement and control pipeline 120 is connected to the pipeline outside the control box 100 in a detachable connection to facilitate the overall disassembly and assembly of the control box 100 and the components inside the control box 100.

[0024] The connecting and fixing assembly 300 is inserted into the mounting hole 210; one end of the connecting and fixing assembly 300 facing away from the control box 100 is used to be embedded in and fixed to the wall hole, and the other end is provided with a connecting head 310. The wall hole is a mounting hole set in the wall of the cave, into which the connecting and fixing assembly 300 is inserted and fixed, thereby facilitating the installation of the control box 100. The connecting head 310 cooperates with the connecting protrusion 130 to achieve position limiting of the control box 100. Typically, multiple sets of connecting and fixing assemblies 300, mounting holes 210, and connecting protrusions 130 are provided. The connection and fixing assembly 300 is positioned by cooperating with the mounting holes 210, so that during installation, multiple sets of connecting heads 310 and connecting protrusions 130 can be simultaneously connected and cooperated.

[0025] One end of the connecting branch pipe 500 is connected to the end of the water distribution pipe 160 remote from the measurement and control pipeline 120, and the other end is connected to the water curtain hole 102. A first control valve 510 is installed on the connecting branch pipe 500. The measurement and control pipeline 120 and the water curtain hole 102 are connected through the connecting branch pipe 500 and the water distribution pipe 160. One end of the drainage branch pipe 600 is connected to the end of the water distribution pipe 160 remote from the measurement and control pipeline 120. A second control valve 610 is installed on the drainage branch pipe 600. The water pressure sensor 123 measures the water pressure at the water curtain hole. If insufficient water pressure is detected at the water curtain hole 102, the regulating valve 121 and the first control valve 510 are opened, and the second control valve 610 is closed, thereby transferring water from the water supply pipe 101 to the water curtain hole 102. When it is detected that the water pressure of the water curtain hole 102 exceeds the set value, the regulating valve 121 and the first control valve 510 can be closed, and the second control valve 610 can be opened to achieve drainage pressure reduction of the water curtain hole 102.

[0026] In a preferred embodiment of the present invention, an automatic control device for a water curtain hole of a water-sealed cavern is provided, which integrates a regulating valve 121, a flow meter 122 and a water pressure sensor 123 into a control box 100, thereby avoiding the problem that components in the traditional decentralized installation method are easily affected by environmental factors and improving the reliability and stability of the system. Through the cooperation of the connector 310 and the connecting protrusion 130, the control box 100 can be quickly installed and fixed, and the integrated design also facilitates subsequent maintenance and inspection. The pressure and flow in the water curtain hole are monitored in real time by the water pressure sensor 123 and the flow meter 122, and the precise adjustment of the regulating valve 121 is combined to achieve precise control of the water curtain hole. Through the connecting branch pipe 500, the drainage branch pipe 600, the first control valve 510 and the second control valve 610, the switching control of water injection and drainage of the water curtain hole is ensured.

[0027] Reference Figure 1 and Figure 2 In some embodiments of the present invention, a locking member 400 is further included. The locking member 400 is installed between the mounting plate 200 and the control box 100, and is used to limit the connecting protrusion 130 that cooperates with the connecting head 310, so that the connecting head 310 remains in cooperation with the connecting protrusion 130, thereby achieving stable limiting and fixing of the control box 100.

[0028] Reference Figure 9 and Figure 10In some embodiments of the present invention, the locking member 400 has a locked state and an unlocked state. The locking member 400 is movably mounted between the mounting plate 200 and the control box 100 to switch between the locked and unlocked states. In the locked state, the locking member 400 limits the position of the connecting protrusion 130 that cooperates with the connector 310. In the unlocked state, the locking member 400 avoids the movable path of the connecting protrusion 130 from the connector 310, thereby not hindering the connecting protrusion 130 from separating from the connector 310, thereby unlocking the connecting protrusion 130 and enabling disassembly of the control box 100. Unlocking by utilizing the movable locking member 400 reduces the use of fasteners and makes assembly and disassembly more convenient and quick.

[0029] Reference Figure 4 、 Figure 5 and Figure 6 In a further embodiment of the present invention, the connection and fixing assembly 300 includes a fixed insert 320 and a threaded rod 330. A tensioning block 340 is connected to the rear end peripheral wall of the fixed insert 320. The tensioning block 340 is hinged to the fixed insert 320 and can retract inward to allow insertion into the wall hole along with the fixed insert 320. The threaded rod 330 is threadedly connected to the fixed insert 320. To facilitate screwing, a multi-prism section 333 is provided at the front end of the threaded rod 330. Specifically, the center of the fixed insert 320 is hollow, and a threaded hole section is provided in the center of the fixed insert 320 for threaded connection with the threaded rod 330. The threaded rod 330 can push the tensioning block 340 outward to tightly contact the inner wall of the wall hole. In other words, the tensioning block 340 can retract inward until it no longer protrudes from the peripheral wall of the fixed insert 320, facilitating insertion of the fixed insert 320 into the wall hole. After the fixing insert 320 is inserted into the wall hole, the threaded rod 330 is tightened, causing the threaded rod 330 to push the tensioning block 340 outward to tightly contact the inner wall of the wall hole, thus achieving a tight connection between the fixing insert 320 and the wall hole, thereby stably fixing the control box 100 to the wall. It will be understood that to ensure installation stability, multiple groups of connecting and fixing components 300, connecting protrusions 130, and mounting holes 210 are provided.

[0030] It is understandable that if Figure 7As shown, multiple tensioning blocks 340 are arranged around the base to achieve tensioning and fixing by opening in multiple positions. This improves installation stability. The tensioning block 340 specifically includes a push arm 341 and a tensioning arm 342. The push arm 341 and the tensioning arm 342 are connected at a certain angle. In this embodiment, the push arm 341 and the tensioning arm 342 are arranged vertically. A first hinge hole is provided at the connection between the push arm 341 and the tensioning arm 342. The rear end of the fixed insert 320 is provided with a mounting opening 322. The side wall of the mounting opening 322 is provided with a second hinge hole. The first hinge hole and the second hinge hole are aligned and installed with a hinge shaft, thereby achieving hinge connection. The push arm 341 is used to contact the threaded rod 330, and the tensioning arm 342 is used to contact the inner wall of the wall hole. In order to prevent the pushing arm 341 from contracting too much and being unable to be pushed by the threaded rod 330, a limiting inclined surface 323 is provided on the inner side of the mounting opening 322. When the pushing arm 341 contacts the limiting inclined surface 323, the tensioning arm 342 contracts inwardly until it no longer protrudes from the outer peripheral wall of the fixed insert 320, and the pushing arm 341 is in the screwing path of the threaded rod 330 and can be pushed by the threaded rod 330.

[0031] Reference Figure 5 and Figure 8In a further embodiment of the present invention, the connector 310 includes a connecting post 311, a contraction post 312, and an expansion post 313 arranged in sequence toward the front. The connecting post 311, the contraction post 312, and the expansion post 313 are coaxially arranged. The diameter of the contraction post 312 is smaller than that of the connecting post 311 and the expansion post 313. The connecting protrusion 130 is provided with an embedding groove 131. The bottom of the embedding groove 131 is provided with an opening for the expansion post 313 to be embedded. The rear side of the embedding groove 131 is provided with an avoidance notch 132. The bottom of the mouth 132 is opened and the width of the avoidance gap 132 is adapted to the diameter of the retracted column 312; when the connecting head 310 and the connecting protrusion 130 are matched, the retracted column 312 is embedded in the avoidance gap 132, and the expansion column 313 is embedded in the embedding groove 131, thereby realizing the front and rear direction limitation and the left and right direction limitation of the connecting protrusion 130, and then cooperating with the action of the locking piece 400 to realize the vertical direction limitation, thereby realizing the fixed installation of the connecting protrusion 130 and the control box 100. The locking member 400 is a limiting cylinder that is slidably mounted on the connecting and fixing assembly 300. Specifically, a center hole is provided in the center of the limiting cylinder, and a first cylindrical section 331 is provided at the front end of the threaded rod 330. The limiting cylinder is slidably mounted on the first cylindrical section 331 to achieve movable limiting. It can be understood that a sleeve hole that is adapted to the first cylindrical section 331 is provided in the limiting cylinder. A spring 420 is provided between the limiting cylinder and the mounting plate 200. The spring 420 can specifically be a compression spring. The spring 420 is used to push the limiting cylinder to wrap around the connector 310 and the connecting protrusion 130 so that the connector 310 and the connecting protrusion 130 remain in engagement. That is, the spring 420 can push the limiting cylinder from the unlocked state to the locked state. When the limiting cylinder reaches the locked state, the limiting cylinder wraps around the connector 310 and the connecting protrusion 130 so that the connector 310 and the connecting protrusion 130 remain in engagement. The limiting cylinder wraps the connector 310 and the connecting protrusion 130 so that the two cannot be separated and remain in cooperation, thereby achieving stable limiting fixation of the connecting protrusion 130 and the control box 100. Figure 8 and Figure 9 When in the locked position, the spring 420 will continue to exert force on the limiting cylinder, so that the limiting cylinder will not leave the locked position when it is not subjected to a large external force, thereby maintaining the locked position and achieving the limit fixation of the control box 100. Figure 10 The limit cylinder in the unlocked state is staggered with the connecting protrusion 130 in the front-to-back direction, so that the connecting protrusion 130 can move upward to disengage from the connection head 310, release the limit, and realize the disassembly of the control box 100.

[0032] Reference Figures 8 to 10 In a further embodiment of the present invention, the inner ring of the front end of the limiting cylinder is provided with a positioning protrusion 410, which can pass through the avoidance gap 132 and enter the embedded groove 131 or stagger with the avoidance gap 132 and abut against the front end surface of the connecting protrusion 130 under the action of the spring 420. Figure 9As shown, in the locked state, the locking protrusion 410 is in the embedded groove 131. Figure 10 As shown, the locking protrusion 410 in the unlocked state can be offset from the avoidance notch 132 and abut against the front end face of the connecting protrusion 130 under the action of the spring 420, so that after letting go, the locking protrusion 410 can remain abutted against the front end face of the connecting protrusion 130, so that the limit cylinder in the unlocked state and the connecting protrusion 130 remain staggered in the front and rear directions, without the need for manual operation of the limit cylinder. The limit cylinder can be manually switched to the unlocked state and then rotated to offset the locking protrusion 410 from the avoidance notch 132 and then let go. After operating all the limit cylinders one by one, the control box 100 is moved upward to complete the disassembly.

[0033] Reference Figure 6 and Figure 8 In a further embodiment of the present invention, a guide cylinder 220 is provided on the front side of the mounting plate 200, surrounding the mounting hole 210. The rear end of the spring 420 is sleeved within the guide cylinder 220, and the fixed insert 320 is inserted through the guide cylinder 220. The center hole of the guide cylinder 220 is sized to match the mounting hole 210. The guide cylinder 220 increases the contact length with the fixed insert 320, improving the positioning stability of the fixed insert 320. Furthermore, the guide cylinder 220 also positions the rear end of the spring 420, ensuring a stable installation position for the spring 420. A stopper 321, with a profile larger than the center hole of the guide cylinder 220, is provided at the front end of the fixed insert 320 to prevent the mounting plate 200 from moving forward and disengaging from the fixed insert 320.

[0034] The connector 310 is connected to the front end of the threaded rod 330. Because the screwing depth of each threaded rod 330 is different, the position of the connector 310 on the threaded rod 330 is uneven, which affects the simultaneous connection and mating of multiple connecting protrusions 130 with the connector 310. To this end, in a further embodiment of the present invention, the front end of the threaded rod 330 is provided with a threaded hole 332, and the connecting column 311 is provided with a stud 314 adapted to the threaded hole 332. The stud 314 is threadedly connected to the threaded hole 332, so that the connector 310 can be adjusted through the threaded connection between the stud 314 and the threaded hole 332, so that multiple connectors 310 can be adjusted to an aligned position to facilitate the simultaneous connection and mating of multiple connecting protrusions 130. Of course, to facilitate screwing, a section of polygonal prism can be provided on the connector 310. In addition, to increase the range of sliding guidance for the limiting cylinder, the connecting column 311 has the same diameter as the first cylindrical section 331, which can accommodate the sliding sleeve of the limiting cylinder.

[0035] Reference Figure 5In a further embodiment of the present invention, an insert cylinder 430 is provided at the rear end of the limiting cylinder. The outer diameter of the insert cylinder 430 is larger than that of the limiting cylinder, so that the outer periphery of the insert cylinder 430 protrudes from the outer periphery of the limiting cylinder. This facilitates the operation of the insert cylinder 430 to drive the limiting cylinder backward. The front end of the spring 420 extends into the insert cylinder 430 to position and limit the front end of the spring 420, preventing the front end of the spring 420 from deflecting. A radially inwardly extending clamping block 431 is provided at the rear end of the insert cylinder 430. The clamping block 431 is embedded in the spring 420. After the control box is removed, the clamping block 431 can hook the spring 420, preventing the limiting cylinder from rebounding and falling due to the rebound force of the spring 420. Moreover, the embedding of the clamping block 431 in the spring 420 does not prevent the limiting cylinder from rotating to a certain angle so that the locking protrusion 410 is offset from the avoidance notch 132. Multiple clamping blocks 431 are arranged around the cylinder.

[0036] Reference Figure 1 In some embodiments of the present invention, mounting plate 200 is provided with a support plate 230. Support plate 230 is configured to contact the bottom of control box 100, thereby supporting most of the weight of control box 100 on support plate 230. This prevents the gravity load from being concentrated on connecting protrusions 130, which could easily damage the connection there. Instead, connecting protrusions 130 are primarily responsible for position limiting. Reinforcing ribs 231 are provided between support plate 230 and the bottom of mounting plate 200 to enhance the structural strength of support plate 230.

[0037] The present invention also provides a water-sealed cavern, comprising a plurality of water-sealed cavern water curtain hole automatic control devices, so as to achieve one-to-one corresponding measurement and control of the plurality of water curtain holes.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic control device for water curtain holes in a water-sealed cavern, characterized in that: include: A control box (100) is provided with an installation cavity (110), wherein a measurement and control pipeline (120) is provided in the installation cavity (110); one end of the measurement and control pipeline (120) extends out of the control box (100) for communicating with a water supply pipe (101), and the other end extends out of the control box (100) and is connected to a water distribution pipe (160); a regulating valve (121), a flow meter (122) and a water pressure sensor (123) are installed on the measurement and control pipeline (120); and a connection protrusion (130) is provided at the rear of the control box (100); A mounting plate (200) located at the rear side of the control box (100) and provided with a mounting hole (210); A connecting and fixing component (300) is inserted into the mounting hole (210), one end of which is away from the control box (100) and is used to be embedded in and fixed to the wall hole, and the other end of which is provided with a connecting head (310), wherein the connecting head (310) cooperates with the connecting protrusion (130) to achieve position limiting of the control box (100); A connecting branch pipe (500), one end of which is connected to an end of the water distribution pipe (160) away from the measurement and control pipeline (120), and the other end of which is connected to the water curtain hole (102); a first control valve (510) is installed on the connecting branch pipe (500); One end of the drainage branch pipe (600) is in communication with an end of the water distribution pipe (160) that is away from the measurement and control pipeline (120), and a second control valve (610) is installed on the drainage branch pipe (600).

2. The automatic control device for water curtain holes of water-sealed caverns according to claim 1 is characterized in that: It also includes a locking member (400), which is installed between the mounting plate (200) and the control box (100) and is used to keep the connection head (310) and the connection protrusion (130) in cooperation.

3. The automatic control device for water curtain holes of water-sealed caverns according to claim 2 is characterized in that: The locking member (400) has a locking state and an unlocking state; the locking member (400) is movably installed between the mounting plate (200) and the control box (100) to achieve switching between the locking state and the unlocking state.

4. The automatic control device for water curtain holes of a water-sealed cavern according to claim 1 or 3, characterized in that: The connection fixing assembly (300) comprises a fixing insert (320) and a threaded rod (330); a tension block (340) is connected to the rear end peripheral wall of the fixing insert (320); the tension block (340) is hinged to the fixing insert (320); the tension block (340) can be retracted inwardly so as to be inserted into the wall hole along with the fixing insert (320); the threaded rod (330) is threadedly connected to the fixing insert (320); the threaded rod (330) can push the tension block (340) to expand outwardly so as to be in close contact with the inner wall of the wall hole.

5. The automatic control device for water curtain holes of water-sealed caverns according to claim 2 is characterized in that: The connecting head (310) comprises a connecting column (311), a shrinking column (312) and an expanding column (313) arranged in sequence facing forward, the shrinking column (312) having a smaller diameter than the connecting column (311) and the expanding column (313); the connecting protrusion (130) is provided with an embedding groove (131), the bottom of the embedding groove (131) is provided with an opening for the expanding column (313) to embed; the rear side of the embedding groove (131) is provided with an avoidance notch (132), the bottom of the avoidance notch (132) is provided with an opening and the width of the avoidance notch (132) is the same as the diameter of the shrinking column (312). The connector (310) and the connecting protrusion (130) are adapted to each other in diameter; when the connector (310) and the connecting protrusion (130) are matched, the shrinkage column (312) is embedded in the avoidance notch (132), and the expansion column (313) is embedded in the embedding groove (131); the locking member (400) is a limiting cylinder, and the limiting cylinder is slidably sleeved on the connecting and fixing assembly (300); a spring (420) is provided between the limiting cylinder and the mounting plate (200), and the spring (420) is used to push the limiting cylinder to wrap the connector (310) and the connecting protrusion (130) so that the connector (310) and the connecting protrusion (130) remain matched.

6. The automatic control device for water curtain holes of water-sealed caverns according to claim 5 is characterized in that: The inner ring at the front end of the limiting cylinder is provided with a locking protrusion (410), and the locking protrusion (410) can pass through the avoidance notch (132) and enter the embedding groove (131) or be offset from the avoidance notch (132) and abut against the front end surface of the connecting protrusion (130) under the action of the spring (420).

7. The automatic control device for water curtain holes of water-sealed caverns according to claim 5 is characterized in that: A guide cylinder (220) is provided on the front side of the mounting plate (200) and is arranged around the mounting hole (210). The rear end of the spring (420) is sleeved on the guide cylinder (220).

8. The automatic control device for water curtain holes of water-sealed caverns according to claim 5 is characterized in that: An embedding cylinder (430) is provided at the rear end of the limiting cylinder, and the outer diameter of the embedding cylinder (430) is larger than the outer diameter of the limiting cylinder; the front end of the spring (420) extends into the embedding cylinder (430); and a clamping block (431) extending radially inward is provided at the rear end of the embedding cylinder (430).

9. The automatic control device for water curtain holes of water-sealed caverns according to claim 1 is characterized in that: The mounting plate (200) is provided with a support plate (230), and the support plate (230) is used to contact the bottom of the control box (100); the support plate (230) and the bottom of the mounting plate (200) are provided with reinforcing ribs (231).

10. A water-sealed cavern, characterized in that: It comprises a plurality of automatic control devices for water curtain holes of a water-sealed cavern as described in any one of claims 1 to 9.

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