An explosion-proof valve group control box structure

Abstract

The utility model discloses an explosion -proof valve group control box structure, including the box, the box is assembled in lubricating system, still including the filter mechanism for constituting the front filter structure, the valve group mechanism for constituting the assembly type valve group structure and the box door mechanism for constituting the explosion -proof visible box door, filter mechanism arrangement in the box inside one side, the valve group mechanism is configured in the box inboard upper portion corresponding filter mechanism, the box door mechanism is assembled in the one side of box, the utility model has the advantages of simple structure is equipped with filter mechanism, can filter the oil liquid of entering valve group to avoid the impurity and block up valve group, is equipped with valve group mechanism, through the oil cylinder as the execution structure of valve group, will not produce explosion, and its energy accumulator is assembled in the control box through the mounting clamp, is convenient for its maintenance and replacement, and the dismounting flexibility is strong, is equipped with the box door mechanism and the box common constitution explosion -proof control box structure, can realize the safety protection of its internal device.

Description

Technical Field

[0001] This utility model relates to the field of mine control equipment technology, and in particular to an explosion-proof valve group control box structure. Background Technology

[0002] In existing technologies, intelligent electric actuators employ a non-intrusive design. The operating speed of the electric actuator changes according to the position value. When the given position value is large, the electric actuator moves quickly to the vicinity of the given value and then reaches the given point at a slower speed. This not only ensures high adjustment accuracy but also avoids impact on the system valves and eliminates water hammer effects. Intelligent electric actuators can display the operating status, current torque, and current position in real time. They can also perform fault self-diagnosis and provide corresponding alarm signals. Intelligent electric actuators should use a non-intrusive design and are generally set using infrared technology, but can also be set using a personal computer's infrared port or data cable. Intelligent electric actuators employ multiple control methods including bus technology. However, existing electric devices cannot be used in mining valve groups due to the risk of explosion, thus having certain usage limitations.

[0003] Chinese utility model patent application number 202023293741.3 discloses a mining explosion-proof integrated electric valve device, including a housing. Handwheel components are fixedly connected to both sides of the top of the housing. A thrust washer is provided in the inner cavity of the housing, and a spring seat is provided at the bottom of the thrust washer. One end of the spring seat is fixedly connected to the inner wall of the housing. A top cover sealing gasket is fitted on the top of the housing. A compression spring is provided at the bottom of the spring seat, and the bottom of the compression spring contacts the inner wall of the housing. A clutch component is fixedly connected to the right side of the housing. An output shaft component is fixedly connected to the left side of the clutch component. A transition connecting plate is fixedly connected to the bottom of the output shaft component. A three-jaw jack is fixedly connected to the bottom of the transition connecting plate. A flange is fixedly connected to the right side of the bottom of the housing. A stroke transmission component is fixedly connected to the right side of the housing and to the left side of the output shaft component. An explosion-proof connecting sleeve is fitted inside the cavity of the stroke transmission component. A housing cover component is fixedly connected to the left end of the housing. However, although this type of explosion-proof integrated valve electric actuator for mining has the function of electric actuation, it has a certain explosion risk and cannot be used in mine lubrication systems. In addition, all its parts adopt a fixed installation method to form an integrated valve structure, which makes it inconvenient to repair and replace vulnerable parts and has poor disassembly and assembly flexibility. Summary of the Invention

[0004] The purpose of this invention is to provide a structure for an explosion-proof valve group control box.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] An explosion-proof valve group control box structure includes a box body, which is assembled in a lubrication system. It also includes a filter mechanism for forming a pre-filter structure, a valve group mechanism for forming an assembled valve group structure, and a door mechanism for forming an explosion-proof visible door. The filter mechanism is arranged inside the box body on one side, the valve group mechanism is arranged on the upper part of the box body corresponding to the filter mechanism, and the door mechanism is assembled on one side of the box body.

[0007] The filtration mechanism includes an inlet pipe, a backwash filter, and a drain solenoid valve. The inlet pipe is located inside the housing and is fixedly connected to the housing. The backwash filter is located on the lower inner side of the housing corresponding to the inlet pipe and is fixedly connected to the housing by screws. One end of the inlet pipe is connected to the inlet end of the backwash filter. The drain solenoid valve is assembled at the drain end of the backwash filter.

[0008] It also includes a drain pipe, which is disposed at the drain end of the backwash filter corresponding to the drain solenoid valve, and one end of the drain pipe is connected to the drain end of the backwash filter.

[0009] The valve assembly includes a valve body, a connecting pipe, an outlet pipe, and an energy storage component. The valve body is located inside the housing on the side away from the backwash filter and is fixedly connected to the housing by screws. The connecting pipe is located between the valve body and the backwash filter, and its two ends are respectively connected to the inlet end of the valve body and the outlet end of the backwash filter. The outlet pipe is located at the outlet end of the valve body and is connected to the outlet end of the valve body. The energy storage component is assembled on the lower inner side of the housing corresponding to the valve body.

[0010] It also includes a control solenoid valve, a pressure gauge, and a pressure sensor. The control solenoid valve is located at the upper end of the valve assembly body and is fixedly connected to the valve assembly body. Several sets of pressure gauges are arranged at intervals on the upper end of the valve assembly body, corresponding to the valve assembly fluid passage. The pressure sensor is located on one side of the valve assembly body and is fixedly connected to the valve assembly body.

[0011] It also includes a pressure inlet, wherein there are several pressure inlets, which are spaced apart and arranged on the side of the valve body near the pressure sensor and fixedly connected to the valve body.

[0012] The energy storage assembly includes an energy storage mounting base, energy storage clamps, and a shell-type accumulator. The energy storage mounting base is located on the lower side of the inner side of the housing, corresponding to the valve group body, and is fixedly connected to the housing body by screws. There are two sets of energy storage clamps, which are symmetrically arranged on the side of the energy storage mounting base away from the housing body, with one end of each set hinged to the energy storage mounting base. The ends of the two sets of energy storage clamps away from the energy storage mounting base are locked together by locking bolts. The shell-type accumulator is located between the two sets of energy storage clamps and is clamped onto the energy storage mounting base by the energy storage clamps. The shell-type accumulator is connected to the valve group body through a connecting pipe.

[0013] The door mechanism includes a door body, an observation window, and a door latch. The door body is located on one side of the box and is hinged to the box. The observation window is located in the middle of the door body and is fixedly connected to the door body through a mounting frame. The door body has an opening structure corresponding to the observation window. The door latch is located on the side of the door body away from its hinge to the box and is embedded in the door body.

[0014] It also includes mounting blocks, which are provided in two sets. The two sets of mounting blocks are arranged side by side at intervals on the upper end of the box body away from the box door body and are fixedly connected to the box body. The box body is assembled into the lubrication system through the two sets of mounting blocks.

[0015] The inlet pipe, the drain pipe, the outlet pipe, the pressure sensor, and the pressure inlet all penetrate the housing.

[0016] The beneficial effects of this utility model are:

[0017] With a simple structure and a filtration mechanism, the oil entering the valve group can be filtered to prevent impurities from clogging the valve group. It also has a valve group mechanism, with a hydraulic cylinder as the valve group's actuation structure, which will not cause an explosion. It can be applied to mine lubrication systems. Furthermore, its accumulator is installed in the control box with a clamp, which facilitates its maintenance and replacement. It is highly flexible in disassembly and assembly. The box door mechanism and the box body together form an explosion-proof control box structure, which can achieve safe protection for its internal components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the filtration mechanism and housing of this utility model.

[0020] Figure 3 This is a schematic diagram of the fit between the pressure inlet and the housing of this utility model;

[0021] Figure 4This is a schematic diagram of the working state of the valve group control box of this utility model.

[0022] In the diagram: 1. Housing; 2. Inlet pipe; 3. Backwash filter; 4. Drain solenoid valve; 5. Drain pipe; 6. Valve assembly body; 7. Connecting pipe; 8. Outlet pipe; 9. Control solenoid valve; 10. Pressure gauge; 11. Pressure sensor; 12. Pressure inlet; 13. Energy storage mounting base; 14. Energy storage clamp; 15. Shell-type energy storage unit; 16. Housing door body; 17. Observation window; 18. Housing door latch; 19. Mounting block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] An explosion-proof valve assembly control box structure includes a box body 1, which is assembled in a lubrication system. It also includes a filter mechanism for forming a pre-filter structure, a valve assembly mechanism for forming an assembled valve assembly structure, and a door mechanism for forming an explosion-proof, visible door. The filter mechanism is located inside the box body 1 on one side, and the valve assembly mechanism is positioned corresponding to the filter mechanism on the upper inner side of the box body 1. The door mechanism is assembled on one side of the box body 1. A schematic diagram of the overall structure of this invention is shown below. Figure 1 As shown.

[0025] The filtration mechanism includes an inlet pipe 2, a backwash filter 3, and a drain solenoid valve 4. The inlet pipe 2 is located inside the housing 1 and is fixedly connected to the housing 1. The backwash filter 3 is located on the lower inner side of the housing 1, corresponding to the inlet pipe 2, and is fixedly connected to the housing 1 by screws. One end of the inlet pipe 2 is connected to the inlet end of the backwash filter 3. The drain solenoid valve 4 is mounted on the drain end of the backwash filter 3. The filtration mechanism, through the cooperation of the inlet pipe 2, the backwash filter 3, and the drain solenoid valve 4, forms a pre-filtration structure inside the control box to filter the oil entering the valve group. The inlet pipe 2 serves as the inlet part of the valve group control box to connect with the external oil circuit. The backwash filter 3 is used to filter the oil entering the valve group. The drain solenoid valve 4 serves as the drain control structure on the backwash filter 3, thereby controlling the opening and closing of the drain end of the backwash filter 3. A schematic diagram of the filtration mechanism and housing 1 of this utility model is shown below. Figure 2 As shown.

[0026] It also includes a drain pipe 5, which is installed at the drain end of the backwash filter 3 corresponding to the drain solenoid valve 4, and one end of the drain pipe 5 is connected to the drain end of the backwash filter 3. The drain pipe 5 is used to discharge the impurities generated by the backwash filter 3 after filtration.

[0027] The valve assembly includes a valve body 6, a connecting pipe 7, an outlet pipe 8, and an energy storage component. The valve body 6 is located inside the housing 1 on the side away from the backwash filter 3 and is fixedly connected to the housing 1 by screws. The connecting pipe 7 is located between the valve body 6 and the backwash filter 3, and its two ends are connected to the inlet end of the valve body 6 and the outlet end of the backwash filter 3, respectively. The outlet pipe 8 is located at the outlet end of the valve body 6 and is connected to the outlet end of the valve body 6. The energy storage component is assembled on the lower inner side of the housing 1 corresponding to the valve body 6. The valve assembly, through the cooperation of the valve body 6, the connecting pipe 7, the outlet pipe 8, and the energy storage component, constitutes a hydraulic control valve assembly structure. The valve body 6 is used to regulate the flow and pressure of the medium in the pipeline. The connecting pipe 7 is used to connect the valve body 6 and the backwash filter 3. The outlet pipe 8 is used to form the outlet structure on the valve body 6 to discharge the internal oil from the valve assembly control box. The energy storage component is used as an energy storage device in the valve assembly control box.

[0028] It also includes a control solenoid valve 9, a pressure gauge 10, and a pressure sensor 11. The control solenoid valve 9 is located at the upper end of the valve assembly body 6 and is fixedly connected to the valve assembly body 6. Several sets of pressure gauges 10 are arranged at intervals at the upper end of the valve assembly body 6, corresponding to the valve assembly liquid circuit. The pressure sensor 11 is located on one side of the valve assembly body 6 and is fixedly connected to the valve assembly body 6. The control solenoid valve 9 is used to control the working state of the valve assembly body 6, the pressure gauge 10 is used to display the pressure of the valve assembly liquid circuit, and the pressure sensor 11 is used to monitor the working pressure of the valve assembly body 6.

[0029] It also includes pressure inlets 12, of which several are provided. These pressure inlets 12 are spaced apart on the side of the valve assembly body 6 near the pressure sensor 11 and are fixedly connected to the valve assembly body 6. The pressure inlets 12 serve as pressure access structures on the valve assembly body 6. A schematic diagram of the cooperation between the pressure inlets 12 and the housing 1 is shown below. Figure 3 As shown.

[0030] The energy storage assembly includes an energy storage mounting base 13, energy storage clamps 14, and a shell-type accumulator 15. The energy storage mounting base 13 is located on the lower inner side of the valve assembly body 6 and is fixedly connected to the housing 1 by screws. There are two sets of energy storage clamps 14, which are symmetrically arranged on the side of the energy storage mounting base 13 away from the housing 1, with one end of each clamp hinged to the energy storage mounting base 13. The ends of the two sets of energy storage clamps 14 away from the energy storage mounting base 13 are locked together by locking bolts. The shell-type accumulator 15 is located between the two sets of energy storage clamps 14 and is connected to the energy storage mounting base 15 by the energy storage clamps. The accumulator 14 is mounted on the energy storage mounting base 13. The shell-type accumulator 15 is connected to the valve group body 6 through the connecting pipe 7. The energy storage assembly, through the energy storage mounting base 13, the energy storage clamp 14 and the shell-type accumulator 15, serves as an energy storage device in the valve group control box. The energy storage mounting base 13 provides installation support for the energy storage clamp 14. The energy storage clamp 14 serves as a snap-fit ​​structure on the energy storage mounting base 13 to quickly snap the shell-type accumulator 15 onto the energy storage mounting base 13. The shell-type accumulator 15 serves as an energy storage device in the valve group control box.

[0031] The door mechanism includes a door body 16, an observation window 17, and a door latch 18. The door body 16 is located on one side of the enclosure 1 and is hinged to the enclosure 1. The observation window 17 is located in the middle of the door body 16 and is fixedly connected to the door body 16 via a mounting frame. The door body 16 has an opening structure corresponding to the observation window 17. The door latch 18 is located on the side of the door body 16 away from its hinge to the enclosure 1 and is embedded in the door body 16. The door mechanism, through the cooperation of the door body 16, the observation window 17, and the door latch 18, constitutes the explosion-proof enclosure on the control box. The door structure protects the internal components of the enclosure 1. The door body 16 serves as the main body of the door, providing mounting support for the observation window 17. The observation window 17 serves as a window structure on the door body 16 to meet the needs of personnel observing the interior of the control box. The door latch 18 serves as a locking structure on the door body 16 to meet the locking requirements between the door body 16 and the enclosure 1. The door latch 18 can adopt a latch structure with locking function from existing technology. A schematic diagram of the valve group control box's working state is shown below. Figure 4 As shown.

[0032] It also includes mounting blocks 19, which are provided in two sets. The two sets of mounting blocks 19 are arranged side by side at intervals on the side of the upper end of the box 1 away from the box door body 16 and are fixedly connected to the box 1. The box 1 is assembled into the lubrication system through the two sets of mounting blocks 19. The mounting blocks 19 are used as the mounting structure at the upper end of the box 1 to meet the installation requirements of the box 1.

[0033] The inlet pipe 2, drain pipe 5, outlet pipe 8, pressure sensor 11, and pressure inlet 12 all pass through the housing 1 to connect with the external oil circuit and lubrication system.

[0034] Working principle:

[0035] In use, the explosion-proof valve group control box is assembled into the mine lubrication system via mounting block 19, and its inlet pipe 2 and outlet pipe 8 are connected to the external oil circuit. It is also connected to the lubrication system via pressure inlet 12. When the valve group control box is started, the external oil enters the backwash filter 3 through the inlet pipe 2. After being filtered by the backwash filter 3, it enters the valve group body 6. The valve group body 6 works and discharges the oil through the outlet pipe 8 under the action of the control solenoid valve 9. The filtered oil containing impurities is discharged from the valve group control box through the drain pipe 5. When the valve group body 6 is working, it delivers lubricating oil to the lubrication point to meet the lubrication requirements of the mine equipment. During the operation, the pressure sensor 11 and pressure gauge 10 monitor the working status of the valve group body 6 in real time. When the shell-type accumulator 15 needs to be repaired or replaced, it can be quickly disassembled and installed through the energy storage clamp 14.

[0036] The advantages of this utility model are its simple structure, the presence of a filtration mechanism to filter the oil entering the valve group to prevent impurities from clogging the valve group, the presence of a valve group mechanism with an oil cylinder as the valve group's actuation structure to prevent explosions, its applicability to mine lubrication systems, and the accumulator mounted in the control box with clamps for easy maintenance and replacement, offering high flexibility in disassembly and assembly. The addition of a door mechanism that, together with the box body, forms an explosion-proof control box structure, ensuring the safety protection of its internal components.

[0037] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A structure for an explosion-proof valve group control box, comprising a box body (1), said box body (1) being assembled in a lubrication system, characterized in that, It also includes a filter mechanism for forming a pre-filter structure, a valve assembly mechanism for forming an assembled valve assembly structure, and a door mechanism for forming an explosion-proof visual door. The filter mechanism is arranged inside one side of the box (1), the valve assembly mechanism is arranged on the upper part of the inside of the box (1) corresponding to the filter mechanism, and the door mechanism is assembled on one side of the box (1). The filtration mechanism includes an inlet pipe (2), a backwash filter (3), and a drain solenoid valve (4). The inlet pipe (2) is located inside the housing (1) and is fixedly connected to the housing (1). The backwash filter (3) is located on the lower inner side of the housing (1) corresponding to the inlet pipe (2) and is fixedly connected to the housing (1) by screws. One end of the inlet pipe (2) is connected to the inlet end of the backwash filter (3). The drain solenoid valve (4) is assembled at the drain end of the backwash filter (3). The valve assembly includes a valve body (6), a connecting pipe (7), an outlet pipe (8), and an energy storage component. The valve body (6) is located inside the housing (1) on the side away from the backwash filter (3) and is fixedly connected to the housing (1) by screws. The connecting pipe (7) is located between the valve body (6) and the backwash filter (3) and its two ends are respectively connected to the inlet end of the valve body (6) and the outlet end of the backwash filter (3). The outlet pipe (8) is located at the outlet end of the valve body (6) and is connected to the outlet end of the valve body (6). The energy storage component is assembled on the lower inner side of the housing (1) corresponding to the valve body (6).

2. The explosion-proof valve group control box structure as described in claim 1, characterized in that, It also includes a drain pipe (5), which is located at the drain end of the backwash filter (3) corresponding to the drain solenoid valve (4) and one end of the drain pipe (5) is connected to the drain end of the backwash filter (3).

3. The explosion-proof valve group control box structure as described in claim 2, characterized in that, It also includes a control solenoid valve (9), a pressure gauge (10) and a pressure sensor (11). The control solenoid valve (9) is located at the upper end of the valve group body (6) and is fixedly connected to the valve group body (6). There are several groups of pressure gauges (10), which are arranged at intervals on the upper end of the valve group body (6) corresponding to the valve group liquid circuit. The pressure sensor (11) is located on one side of the valve group body (6) and is fixedly connected to the valve group body (6).

4. The explosion-proof valve group control box structure as described in claim 3, characterized in that, It also includes a pressure inlet (12), which has a plurality of pressure inlets (12) arranged at intervals on the side of the valve body (6) near the pressure sensor (11) and fixedly connected to the valve body (6).

5. The explosion-proof valve group control box structure as described in claim 4, characterized in that, The energy storage assembly includes an energy storage mounting base (13), an energy storage clamp (14), and a shell-type accumulator (15). The energy storage mounting base (13) is located on the lower inner side of the housing (1) corresponding to the valve group body (6) and is fixedly connected to the housing (1) by screws. There are two sets of energy storage clamps (14). The two sets of energy storage clamps (14) are symmetrically arranged on the side of the energy storage mounting base (13) away from the housing (1) and one end of them is hinged to the energy storage mounting base (13). The ends of the two sets of energy storage clamps (14) away from the energy storage mounting base (13) are locked by locking bolts. The shell-type accumulator (15) is located between the two sets of energy storage clamps (14) and is clamped on the energy storage mounting base (13) by the energy storage clamps (14). The shell-type accumulator (15) is connected to the valve group body (6) through a connecting pipe (7).

6. The explosion-proof valve group control box structure as described in claim 5, characterized in that, The door mechanism includes a door body (16), an observation window (17), and a door latch (18). The door body (16) is located on one side of the box body (1) and is hinged to the box body (1). The observation window (17) is located in the middle of the door body (16) and is fixedly connected to the door body (16) through a mounting frame. The door body (16) has an opening structure corresponding to the observation window (17). The door latch (18) is located on the side of the door body (16) away from its hinge to the box body (1) and is embedded in the door body (16).

7. The explosion-proof valve group control box structure as described in claim 6, characterized in that, It also includes mounting blocks (19), which are provided in two sets. The two sets of mounting blocks (19) are arranged side by side at intervals on the side of the upper end of the box (1) away from the box door body (16) and are fixedly connected to the box (1). The box (1) is assembled into the lubrication system through the two sets of mounting blocks (19).

8. The explosion-proof valve group control box structure as described in claim 7, characterized in that, The inlet pipe (2), the drain pipe (5), the outlet pipe (8), the pressure sensor (11), and the pressure inlet (12) all penetrate the housing (1).

Images