Coal mine tunneling roadway machine-following water curtain

Abstract

The utility model belongs to the technical field of fluid control, and relates to a coal mine tunneling roadway machine-following water curtain, which comprises a bottom plate, a first ball valve and a second ball valve, and adopts logic innovation of joint control of double ball valve banks, state interlocking between the ball valve banks ensures operation integrity, and the two ball valve banks are respectively arranged on the left side and the right side. At the moment, the second ball valves of the left and right ball valve groups are opened, the first ball valves are closed, the waterway circulates, and the water curtain is opened; when the left control rod is operated, the second ball valve of the left ball valve group is closed, the first ball valve is opened, the right ball valve group is opposite, the waterway is blocked, and people pass; when the right control rod is operated, the second ball valve of the left and right ball valve groups is closed, the first ball valve is opened, the water path circulates, and the water curtain is opened. According to the design, the problem that the water curtain is abnormally closed due to misoperation is avoided through joint control of the double ball valve sets, if the ball valve set on one side cannot be switched due to faults, the other side can still maintain part of functions, and the safety of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fluid control technology, specifically a water curtain for coal mine tunneling. Background Technology

[0002] Traditional designs typically control the water flow directly through a single ball valve or gate valve. If the valve closes unexpectedly due to vibration, accidental contact, or other reasons, the water curtain will fail, resulting in the loss of its separation function, such as in fire-fighting scenarios. If the valve becomes stuck and cannot be closed, it will fail to meet the needs of personnel passage, posing a single risk of "either open or closed." Furthermore, if traditional single-control valves use welded or fixed connections, maintenance requires shutting down the entire system and cannot be performed in sections. If the connection structure is not sufficiently sealed, it is prone to leakage or loosening due to vibration, which can easily lead to the water curtain going out of control. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a water curtain for coal mine tunneling roadways, which solves the problems of low safety and low adaptability of the water curtain handle operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a water curtain for coal mine tunneling, characterized in that it includes a base plate, a first ball valve, and a second ball valve. The base plate is a symmetrical chamfered rectangular hexagon. The first and second ball valves are both connected to the base plate and are parallel to each other. Handle screws are provided on the same side of the first and second ball valves. The handle screws control the closed state of the first and second ball valves. Ball valve handles are connected to the handle screws. The ends of the two ball valve handles are connected to a control rod. The first ball valve is located between the two ball valve handles of the first and second ball valves.

[0005] Optionally, the tail of the first ball valve is connected to a tee pipe. The first ball valve is connected to one branch end of the tee pipe, and the other branch end is set as the inlet and outlet end. The main pipe end of the tee pipe is connected to a 1 / 2-inch pipe. One circular end of the 1 / 2-inch pipe is welded to the tee pipe, and the other rectangular end is connected to an elbow. The other end of the elbow is connected to the second ball valve. The combined action of the elbow and the tee pipe makes the first ball valve and the second ball valve connected in parallel. The elbow, 1 / 2-inch pipe and the tee pipe connecting the two ball valves are also fixed on the base plate. The elbow, 1 / 2-inch pipe and the tee pipe are inside.

[0006] Optionally, the first ball valve and the second ball valve are connected to inlet pipes, which are used to connect to another set of identical ball valves. The first ball valves are connected in series through the inlet pipes, and the second ball valves are also connected in series through the inlet pipes. Finally, a water pipe is led out and connected to the inlet and outlet ends of the tee pipe, and the other end of the water pipe is connected to the water curtain.

[0007] Optionally, the first ball valve and the second ball valve can be adjusted by a handle screw so that the opening states of the two ball valves are opposite, with one in the open state and the other in the closed state.

[0008] Optionally, the first ball valve, the three-way pipe and the four-point pipe are all provided with a stop port on their surfaces, and a retaining ring is provided in the stop port, which is locked inside the above-mentioned components.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention employs a novel logic of dual-ball valve group interlocking. The interlocking of states between the ball valve groups ensures operational integrity. The opening and closing states of the two ball valve groups must strictly correspond. For example, if the two ball valve groups are located on the left and right sides respectively, at this time, the second ball valve of the left ball valve group is open and the first ball valve is closed, and the second ball valve of the right ball valve group is also open and the first ball valve is closed. At this time, the water path is open and the water curtain is activated. If the left ball valve lever is operated, the second ball valve of the left ball valve group is closed and the first ball valve is open, and the second ball valve of the right ball valve group is also open and the first ball valve is closed. At this time, the water path is blocked, but personnel can pass through. If the right ball valve lever is operated, the second ball valve of the left ball valve group is closed and the first ball valve is open, and the second ball valve of the right ball valve group is closed and the first ball valve is open. At this time, the water path is open and the water curtain is activated. This design, with its dual ball valve group control, requires personnel to operate the other handle after passing through in order to restore the water curtain. This avoids the problem of accidental or misoperation by a single person causing the water curtain to close abnormally. Furthermore, if one ball valve group fails to switch due to a malfunction, the other side can still maintain some functions. For example, if the right ball valve group fails, operating only the left handle can still close the water curtain and allow personnel to pass through. In contrast, a malfunction of a traditional single-control valve would completely disable the device, thus improving its safety.

[0011] The dual-control design of this invention allows for standardized operating procedures, facilitating operator training and management. Compared to the "arbitrary operation" of traditional single-control systems, dual-control systems enforce standardized operating procedures through structural design, reducing human error. This makes it particularly suitable for scenarios with high safety requirements. Furthermore, the device allows for segmented maintenance, improving its adaptability. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a rear view schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the dual-control handle operation in this utility model;

[0015] In the picture:

[0016] 1. Base plate; 2. First ball valve; 3. Second ball valve; 4. Handle screw; 5. Ball valve handle; 6. Control lever; 7. T-pipe; 8. Inlet / outlet end; 9. 1 / 2-inch pipe; 10. Elbow; 11. Liquid inlet pipe; 12. Water pipe; 13. Stop port; 14. Snap ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 As shown in the figure, this utility model provides a water curtain for coal mine tunneling roadways, characterized in that it includes a base plate 1, a first ball valve 2, and a second ball valve 3. The base plate 1 is a symmetrical chamfered rectangular hexagon. The first ball valve 2 and the second ball valve 3 are both connected to the base plate 1 and are parallel to each other. Handle screws 4 are provided on the same side of the first ball valve 2 and the second ball valve 3. The handle screws 4 control the closed state of the first ball valve 2 and the second ball valve 3. Ball valve handles 5 are connected to the handle screws 4. The ends of the two ball valve handles 5 are connected to a control rod 6. The first ball valve 2 is located between the two ball valve handles 5 of the first ball valve 2 and the second ball valve 3.

[0019] Specifically, this utility model adopts a logic innovation of dual ball valve group interlocking. The states of the ball valve groups are interlocked to ensure operational integrity. The opening and closing states of the two ball valve groups must strictly correspond. For example, the two ball valve groups are located on the left and right sides respectively. At this time, the second ball valve 3 of the left ball valve group is open and the first ball valve 2 is closed. The second ball valve 3 of the right ball valve group is also open and the first ball valve 2 is closed. At this time, the water path is open and the water curtain is opened. At this time, operating the left control lever 6 will close the second ball valve 3 of the left ball valve group and open the first ball valve 2. The second ball valve 3 of the right ball valve group will also open and the first ball valve 2 is closed. At this time, the water path is blocked and personnel can pass through. At this time, operating the right control lever 6 will close the second ball valve 3 of the left ball valve group and open the first ball valve 2. The second ball valve 3 of the right ball valve group will close and the first ball valve 2 is open. At this time, the water path is open and the water curtain is opened. This design, with its dual ball valve group control, requires personnel to activate the other control lever 6 after passing through in order to restore the water curtain. This avoids the problem of accidental closure of the water curtain due to single-person touch or misoperation. Furthermore, if one ball valve group fails to switch due to a malfunction, the other side can still maintain some functions. For example, if the right ball valve group fails, operating only the left control lever 6 can still close the water curtain and allow personnel to pass through. In contrast, a malfunction of a traditional single-control valve would completely disable the device, thus improving its safety.

[0020] The tail of the first ball valve 2 is connected to a three-way pipe 7. The first ball valve 2 is connected to one branch end of the three-way pipe 7, and the other branch end is set as the inlet and outlet end 8. The main pipe end of the three-way pipe 7 is connected to a 1 / 4-inch pipe 10. The circular end of the 1 / 4-inch pipe 10 is welded to the three-way pipe 7, and the other rectangular end is connected to an elbow 10. The other end of the elbow is connected to the second ball valve 3. The combined action of the elbow 10 and the three-way pipe 7 makes the first ball valve 2 and the second ball valve 3 connected in parallel. The elbow 10, the 1 / 4-inch pipe 10 and the three-way pipe 7 connecting the two ball valves are also fixed on the base plate 1. The elbow 10, the 1 / 4-inch pipe 10 and the three-way pipe 7 are inside.

[0021] Specifically, the dual-control design of this invention allows for standardized operating procedures, facilitating operator training and management. Compared to the "arbitrary operation" of traditional single-control systems, dual-control systems enforce standardized operating procedures through structural design, reducing human error. This makes it particularly suitable for scenarios with high safety requirements. Furthermore, this device allows for segmented maintenance, improving its adaptability.

[0022] The first ball valve 2 and the second ball valve 3 are connected to an inlet pipe 11. The inlet pipe 11 is used to connect to another set of the same ball valve group. The first ball valves 2 are connected in series through the inlet pipe 11, and the second ball valves 3 are also connected in series through the inlet pipe 11. Finally, a water pipe 12 is led out and connected to the inlet and outlet ends 8 on the three-way pipe 7. The other end of the water pipe 12 is connected to the water curtain.

[0023] The first ball valve 2 and the second ball valve 3 can be adjusted by the handle screw 4 so that the opening states of the two ball valves are opposite, one is in the open state and the other is in the closed state.

[0024] The first ball valve 2, the three-way pipe 7 and the four-point pipe 10 are all provided with a stop port 13, and a retaining ring 14 is provided in the stop port 13. The retaining ring 14 is locked inside the above-mentioned components.

[0025] Specifically, the mechanical limiting action of the retaining ring 14 fixes the connecting parts, preventing axial movement or detachment, and preventing pipe fittings or internal parts from loosening under working conditions such as vibration and pressure fluctuation, thus ensuring connection reliability.

[0026] The working principle and usage process of this utility model are as follows: This utility model adopts a logic innovation of dual ball valve group interlocking. The states of the ball valve groups are interlocked to ensure operational integrity. The opening and closing states of the two ball valve groups must strictly correspond. For example, the two ball valve groups are located on the left and right sides respectively. At this time, the second ball valve 3 of the left ball valve group is open and the first ball valve 2 is closed. The second ball valve 3 of the right ball valve group is also open and the first ball valve 2 is closed. At this time, the water path is open and the water curtain is opened. At this time, operating the left control lever 6 will close the second ball valve 3 of the left ball valve group and open the first ball valve 2. The second ball valve 3 of the right ball valve group will also open and the first ball valve 2 is closed. At this time, the water path is blocked, but personnel can pass through. At this time, operating the right control lever 6 will close the second ball valve 3 of the left ball valve group and open the first ball valve 2. The second ball valve 3 of the right ball valve group will close and the first ball valve 2 will open. At this time, the water path is open and the water curtain is opened. This design, with its dual ball valve group control, requires personnel to activate the other control lever 6 after passing through in order to restore the water curtain. This avoids the problem of accidental closure of the water curtain due to single-person touch or misoperation. Furthermore, if one ball valve group fails to switch due to a malfunction, the other side can still maintain some functions. For example, if the right ball valve group fails, operating only the left control lever 6 can still close the water curtain and allow personnel to pass through. In contrast, a malfunction of a traditional single-control valve would completely disable the device, thus improving its safety.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water curtain for coal mine tunneling, characterized in that, Includes a base plate (1), a first ball valve (2), and a second ball valve (3). The base plate (1) is a symmetrical chamfered rectangular hexagon. The first ball valve (2) and the second ball valve (3) are both connected to the base plate (1) and are parallel to each other. The first ball valve (2) and the second ball valve (3) are provided with a handle screw (4) on the same side. The handle screw (4) controls the closed state of the first ball valve (2) and the second ball valve (3). A ball valve handle (5) is connected to the handle screw (4). The ends of the two ball valve handles (5) are connected to a control rod (6). The first ball valve (2) is located between the two ball valve handles (5) of the first ball valve (2) and the second ball valve (3).

2. The water curtain for coal mine tunneling as described in claim 1, characterized in that, The tail of the first ball valve (2) is connected to a three-way pipe (7). The first ball valve (2) is connected to one branch end of the three-way pipe (7), and the other branch end is set as the inlet and outlet end (8). The main pipe end of the three-way pipe (7) is connected to a four-point pipe (9). The circular end of the four-point pipe (9) is welded to the three-way pipe (7), and the other rectangular end is connected to an elbow (10). The other end of the elbow is connected to the second ball valve (3). The combined action of the elbow (10) and the three-way pipe (7) makes the first ball valve (2) and the second ball valve (3) connected in parallel. The elbow (10), the four-point pipe (9) and the three-way pipe (7) connecting the two ball valves are also fixed on the base plate (1). The elbow (10), the four-point pipe (9) and the three-way pipe (7) are inside.

3. The water curtain for coal mine tunneling as described in claim 1, characterized in that, The first ball valve (2) and the second ball valve (3) are connected to an inlet pipe (11). The inlet pipe (11) is used to connect to another set of the same ball valve group. The first ball valves (2) are connected in series through the inlet pipe (11), and the second ball valves (3) are also connected in series through the inlet pipe (11). Finally, a water pipe (12) is led out and connected to the inlet and outlet ends (8) of the three-way pipe (7). The other end of the water pipe (12) is connected to the water curtain.

4. The water curtain for coal mine tunneling as described in claim 1, characterized in that, The first ball valve (2) and the second ball valve (3) can be adjusted by the handle screw (4) so ​​that the opening states of the two ball valves are opposite, one is in the open state and the other is in the closed state.

5. A water curtain for coal mine tunneling as described in claim 1, characterized in that, The first ball valve (2), the three-way pipe (7) and the four-point pipe (9) are all provided with a stop port (13), and a retaining ring (14) is provided in the stop port (13). The retaining ring (14) is locked inside the above-mentioned components.

Images