A pressure electrical interlocking device for ensuring the supply of sealing water in the salt calcium production process

Abstract

The present invention relates to a pressure electrical interlocking device, and in particular to a pressure electrical interlocking device that ensures the supply of sealed water in a salt-calcium production process. A pressure electrical interlocking device that can automatically double-seal a water pipe to prevent the outflow of sealed water and ensure the supply of sealed water in a salt-calcium production process. A pressure electrical interlocking device that ensures the supply of sealed water in a salt-calcium production process, comprising a water pipe, a fixed shell, a fixed frame and a screw, etc. The middle part of the water pipe in the vertical direction is connected to the fixed shell, the front side of the fixed shell is connected to the fixed frame, the middle part of the fixed frame is threadedly connected to a rotatable screw, and the screw and the fixed shell are rotatably connected. The present invention can double-lock the upper part of the water pipe through the cooperation between the nut, the guide member and the pressing rod, thereby preventing the water in the upper part of the water pipe from flowing out, thus preventing water from being wasted and saving costs.

Description

Technical Field

[0001] The invention relates to a pressure electrical interlocking device, in particular to a pressure electrical interlocking device for ensuring the supply of sealing water in a salt-calcium production process. Background Art

[0002] Salt calcium refers to salts formed by the combination of calcium ions and acid radical ions. During the production of salt calcium, the process needs to be supplied with sealed water.

[0003] First, one end of the water pipe is installed on the water pipe, so that sealing water can be supplied during the salt calcium production process. However, traditional water pipes are difficult to maintain sealing. When the water pressure is high, the water valve in the water pipe cannot guarantee complete water sealing and blocking, which may cause sealing water overflow and cause sealing water to be wasted. Therefore, in response to this situation, a pressure electrical interlocking device is developed that can automatically double-seal the water pipe to prevent the outflow of sealing water and ensure the supply of sealing water in the salt calcium production process. Summary of the Invention

[0004] In order to overcome the disadvantage that traditional water pipes are difficult to maintain sealing, when the water pressure is high, the water valve in the water pipe cannot ensure complete sealing and blocking of water, which may cause sealing water overflow, the purpose of the present invention is to provide a pressure electrical interlocking device that can automatically perform double sealing on the water pipe to prevent the outflow of sealing water and ensure the supply of sealing water in the salt calcium production process.

[0005] The technical solution is: a pressure electrical interlocking device for ensuring the supply of sealed water in the salt calcium production process, including a water pipe, a fixed shell, a fixed frame, a guide, a screw, a sliding baffle, a rotating mechanism and an opening and closing mechanism. The middle part of the water pipe is connected to the fixed shell in the vertical direction, the front side of the fixed shell is connected to the fixed frame, the middle part of the fixed frame is threadedly connected to a rotatable screw, the screw and the fixed shell are rotatably connected, the rear side of the screw is connected to a sliding baffle, the sliding baffle is respectively slidably connected to the fixed shell and the fixed frame, the fixed frame is slidably connected to the guide, the guide and the screw are threadedly connected, the fixed frame is provided with a rotating mechanism for rotating the screw, and the fixed frame is provided with an opening and closing mechanism for opening and closing the upper part of the water pipe.

[0006] As an improvement to the above scheme, the rotating mechanism includes a bracket, a motor, a first full gear, a second full gear and a nut. The bracket is connected to the lower side of the fixed frame, the motor is connected to the bracket, the second full gear capable of rotating is connected to the motor output shaft, the nut is threadedly connected to the screw, the first full gear is connected to the nut, and the first full gear and the second full gear are engaged with each other.

[0007] As an improvement of the above scheme, the opening and closing mechanism includes a first rotating ball valve, a rotating disk, a connecting rod, a pressing rod, a sliding member, a fixed guide rail, a rotating member, a sliding frame, a connecting member and a hexagonal member, the upper part of the water pipe is rotatably connected to the first rotating ball valve, the front side of the first rotating ball valve is connected to the rotating disk, the rotating disk is connected to the connecting rod, the left and right sides of the lower part of the guide member are connected to the pressing rods that can move, the front of the fixed frame is slidably connected to the sliding member, the sliding member and the pressing rod are in contact, the side of the front of the fixed frame close to each other is rotatably connected to the rotating member, the rotating member and the sliding member are both rotatably and slidably connected, the side of the middle of the fixed frame close to each other is connected to a fixed guide rail with a guiding function, the fixed guide rail is slidably connected to the sliding frame, the sliding frame and the rotating member are both rotatably and slidably connected, a connecting member is connected between the two sliding frames, the connecting member and the connecting rod are both rotatably and slidably connected, and the back side of the first rotating ball valve is slidably connected to the hexagonal member.

[0008] As an improvement to the above scheme, a diversion mechanism for diverting water is also included, which includes a fixed pipe, a second rotating ball valve and a hexagonal block. The fixed pipe is connected to the rear side of the water pipe, and the upper part of the fixed pipe is rotatably connected to the second rotating ball valve that can rotate. The front side of the second rotating ball valve is connected to the hexagonal block, and the hexagonal block and the hexagonal piece are clamped together.

[0009] As an improvement to the above solution, a pressure reducing mechanism for reducing pressure is also included, which includes a pipe rack, a rotating cover, a flow guide and a telescopic spring. The front side of the lower part of the water pipe is connected to the pipe rack, the front part of the pipe rack is threadedly connected to the rotating cover, the inside of the pipe rack is slidably connected to the flow guide, and a telescopic spring with a reset function is connected between the flow guide and the pipe rack, and the telescopic spring is sleeved on the flow guide.

[0010] As an improvement to the above scheme, a detection mechanism is also included, which includes a flow meter and a detection probe. The lower part of the water pipe is connected to a detection probe for detecting the flow rate of water, and the detection probe is connected to the flow meter, which is connected to the water pipe.

[0011] As an improvement to the above solution, a transparent dust cover is also included, and the front of the flow meter is rotatably connected to the transparent dust cover.

[0012] As an improvement to the above scheme, a filtering mechanism for filtering water is also included, which includes a connecting pipe, ribs and a filter screen. The lower part of the water pipe is connected to the connecting pipe, three ribs are connected to the connecting pipe along the circumferential direction, and filter screens are connected to the front and rear sides of the connecting pipe.

[0013] The beneficial effects are as follows: 1. The present invention can double-seal the upper part of the water pipe through the cooperation between the nut, the guide member and the pressing rod, thereby preventing water from flowing out of the upper part of the water pipe, thus preventing water from being wasted and saving costs.

[0014] 2. The rear side of the water pipe of the present invention is connected with a fixed pipe, which can divert the water in the upper part of the water pipe, thereby increasing the water flow in the lower part of the water pipe and making more water flow out of the water pipe.

[0015] 3. The flow guide inside the pipe rack of the present invention can reduce the pressure inside the water pipe when the flow guide moves backward, thereby achieving the purpose of reducing the water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first viewing angle three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the second viewing angle three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the opening and closing mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the enlarged part A of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the opening and closing mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the opening and closing mechanism of the present invention.

[0023] Figure 8 It is a sectional view of the three-dimensional structure of the diversion mechanism of the present invention.

[0024] Figure 9 This is an enlarged schematic diagram of the three-dimensional structure of point B of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the decompression mechanism of the present invention.

[0026] Figure 11 It is a schematic diagram of the enlarged three-dimensional structure of point C of the present invention.

[0027] Figure 12 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0028] Figure 13 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0029] Figure 14 This is a schematic diagram of the first partial three-dimensional structure of the filtering mechanism of the present invention.

[0030] Figure 15This is a schematic diagram of the second partial three-dimensional structure of the filtering mechanism of the present invention.

[0031] Names of the reference numerals in the figure: 1, water pipe, 2, fixed shell, 3, fixed frame, 4, guide member, 5, screw, 6, sliding baffle, 7, rotating mechanism, 71, bracket, 72, motor, 73, first full gear, 74, second full gear, 75, nut, 8, opening and closing mechanism, 81, first rotating ball valve, 82, rotating disk, 83, connecting rod, 84, pressing rod, 85, sliding member, 86, fixed guide rail, 87, rotating member, 88, sliding frame, 89. Connecting piece, 810. Hexagonal piece, 9. Diverter mechanism, 91. Fixed pipe, 92. Second rotating ball valve, 93. Hexagonal block, 10. Pressure reducing mechanism, 101. Pipe rack, 102. Rotating cover, 103. Flow guide, 104. Telescopic spring, 11. Detection mechanism, 111. Flow meter, 112. Transparent dust cover, 113. Detection probe, 12. Filter mechanism, 121. Connecting pipe, 122. Rib, 123. Filter. DETAILED DESCRIPTION

[0032] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments. Example 1

[0033] A pressure electrical interlock device to ensure the supply of sealing water in the salt calcium production process, such as Figure 1 and Figure 2 As shown, it includes a water pipe 1, a fixed shell 2, a fixed frame 3, a guide 4, a screw 5, a sliding baffle 6, a rotating mechanism 7 and an opening and closing mechanism 8. The middle part of the water pipe 1 in the vertical direction is fixedly connected to the fixed shell 2, the front side of the fixed shell 2 is connected to the fixed frame 3, the middle part of the fixed frame 3 is threadedly connected to the screw 5, the screw 5 and the fixed shell 2 are rotatably connected, the rear side of the screw 5 is connected to the sliding baffle 6, the sliding baffle 6 is slidingly connected to the fixed shell 2 and the fixed frame 3 respectively, the sliding baffle 6 can block the hole on the fixed shell 2, the fixed frame 3 is slidably connected to the guide 4, the guide 4 and the screw 5 are threadedly connected, the fixed frame 3 is provided with a rotating mechanism 7, and the fixed frame 3 is provided with an opening and closing mechanism 8.

[0034] like Figure 1 、 Figure 2 and Figure 3As shown, the rotating mechanism 7 includes a bracket 71, a motor 72, a first full gear 73, a second full gear 74 and a nut 75. The bracket 71 is connected to the lower side of the fixed frame 3, and the motor 72 is connected to the bracket 71 by bolts. The second full gear 74 is connected to the output shaft of the motor 72 through a coupling. The motor 72 can rotate the second full gear 74. The screw 5 is threadedly connected to the nut 75, and the nut 75 can move the screw 5. The first full gear 73 is connected to the nut 75, and the first full gear 73 and the second full gear 74 are meshed with each other.

[0035] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the opening and closing mechanism 8 includes a first rotating ball valve 81, a rotating disk 82, a connecting rod 83, a pressing rod 84, a sliding member 85, a fixed guide rail 86, a rotating member 87, a sliding frame 88, a connecting member 89 and a hexagonal member 810. The upper part of the water pipe 1 is rotatably connected to the first rotating ball valve 81, and the front side of the first rotating ball valve 81 is connected to the rotating disk 82. The rotating disk 82 can rotate the first rotating ball valve 81. The rotating disk 82 is connected to the connecting rod 83. The left and right sides of the lower part of the guide member 4 are welded with pressing rods 84. The front of the fixed frame 3 is slidably connected with a sliding member 85. The sliding member 85 is in contact with the pressing rod 84. The pressing rod 84 can make the sliding member 85 move, and the side of the front part of the fixed frame 3 that is close to each other is rotatably connected with the rotating member 87, and the rotating member 87 and the sliding member 85 are both rotatably and slidably connected. The side of the middle part of the fixed frame 3 that is close to each other is connected with the fixed guide rail 86, and the sliding frame 88 is slidably connected to the fixed guide rail 86. The fixed guide rail 86 can guide the sliding frame 88, and the sliding frame 88 and the rotating member 87 are both rotatably and slidably connected. A connecting member 89 is connected between the two sliding frames 88, and the connecting member 89 and the connecting rod 83 are both rotatably and slidably connected. The rear side of the first rotating ball valve 81 is slidably connected to the hexagonal member 810.

[0036] When people need to supply water, they can use this device to operate. First, connect the upper side of the water pipe 1 and the water pipe. At this time, the water in the water pipe will flow out through the water pipe 1, so that water can be supplied during the salt calcium production process. When people do not need to supply water, turn on the motor 72, so that the output shaft of the motor 72 rotates clockwise, and then drives the second full gear 74 to rotate clockwise, and then drives the first full gear 73 and the nut 75 to rotate counterclockwise, so that the screw 5 and the sliding baffle 6 move backward. At this time, the water in the upper part of the water pipe 1 will not flow downward. At the same time, when the screw 5 moves backward, the screw 5 will also drive the guide member 4 to move backward, and then drive the pressing rod 84 to move backward, so that the pressing rod 84 moves the sliding member 85 backward, thereby causing the rotating member 87 to rotate, and the rotating member 87 rotates to drive the sliding frame 88 and the connecting member 89 to move downward. At this time, the connecting member 89 will move the connecting rod 83 to When the water source needs to flow out from the lower part of the water pipe 1, the output shaft of the control motor 72 is rotated counterclockwise, and then the second full gear 74 is driven to rotate counterclockwise and reset, thereby causing the first full gear 73 and the nut 75 to rotate clockwise and reset, thereby causing the screw rod 5 and the sliding baffle 6 to move forward and reset. At the same time, the screw 5 will also drive the guide member 4 to move forward and reset, and then the pressing rod 84 is moved forward and reset, thereby causing the rotating member 87 to rotate and reset, thereby causing the sliding frame 88, the connecting member 89 and the connecting rod 83 to move upward and reset. At this time, the connecting rod 83 will cause the rotating disk 82 and the first rotating ball valve 81 to rotate counterclockwise and reset. Repeat the above operation to perform double locking on the water pipe 1, thereby preventing the water in the upper part of the water pipe 1 from flowing downward, thus preventing water from being wasted. Example 2

[0037] On the basis of Example 1, Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, it also includes a diversion mechanism 9, which includes a fixed pipe 91, a second rotating ball valve 92 and a hexagonal block 93. The fixed pipe 91 is fixedly connected to the rear side of the water pipe 1, and the fixed pipe 91 can divert water. The upper part of the fixed pipe 91 is rotatably connected to the second rotating ball valve 92, and the second rotating ball valve 92 can prevent the water in the fixed pipe 91 from flowing downward. The front side of the second rotating ball valve 92 is connected to the hexagonal block 93, and the hexagonal block 93 is clamped with the hexagonal piece 810. The hexagonal block 93 can rotate the second rotating ball valve 92.

[0038] Since the opening on the first rotating ball valve 81 is small, the flow rate of water flowing to the lower part of the water pipe 1 is small, so the diversion mechanism 9 can be used for operation. When the first rotating ball valve 81 drives the hexagonal piece 810 to rotate clockwise, the hexagonal piece 810 will drive the hexagonal block 93 and the second rotating ball valve 92 to rotate clockwise. At this time, the water in the upper part of the fixed pipe 91 will not flow into the lower part of the water pipe 1. When the first rotating ball valve 81 drives the hexagonal piece 810 to rotate counterclockwise and reset, the hexagonal piece 810 will also drive the hexagonal block 93 and the second rotating ball valve 92 to rotate counterclockwise and reset. In this way, the water in the upper part of the fixed pipe 91 will flow into the lower part of the water pipe 1. Repeat the above operation to automatically divert the water, thereby increasing the water flow rate in the lower part of the water pipe 1.

[0039] like Figure 1 、 Figure 2 、 Figure 10 and Figure 11 As shown, a pressure reducing mechanism 10 is also included. The pressure reducing mechanism 10 includes a pipe rack 101, a rotating cover 102, a flow guide 103 and a telescopic spring 104. The front side of the lower part of the water pipe 1 is connected to the pipe rack 101, and the front part of the pipe rack 101 is threadedly connected to the rotating cover 102. The rotating cover 102 can protect the fixed pipe rack 91. The inside of the pipe rack 101 is slidably connected to the flow guide 103. A telescopic spring 104 is connected between the flow guide 103 and the pipe rack 101. The telescopic spring 104 is sleeved on the flow guide 103, and the telescopic spring 104 can reset the flow guide 103.

[0040] When people need to reduce the pressure inside the water pipe 1, they can use the pressure reducing mechanism 10 to reduce the pressure. First, the rotating cover 102 is rotated clockwise to open the front side of the pipe rack 101. Then the flow guide 103 is pressed backward, and the telescopic spring 104 is compressed. In this way, the pressure inside the water pipe 1 can be reduced. When people do not need to reduce the pressure, the flow guide 103 is released. At this time, under the action of the telescopic spring 104, the flow guide 103 will move forward and reset. Then the rotating cover 102 is rotated counterclockwise and reset to close the front side of the pipe rack 101. Repeat the above operation to reduce the pressure inside the water pipe 1, thereby achieving the purpose of reducing the water pressure.

[0041] like Figure 1 、 Figure 2 、 Figure 12 and Figure 13 As shown, it also includes a detection mechanism 11, which includes a flow meter 111 and a detection probe 113. The detection probe 113 is fixedly connected to the lower part of the water pipe 1, and the detection probe 113 can detect the flow rate of the water flow. The flow meter 111 is connected to the detection probe 113, and the flow meter 111 is connected to the water pipe 1. The flow meter 111 can view the detection data.

[0042] like Figure 12 and Figure 13 As shown, a transparent dust cover 112 is also included. The front of the flow meter 111 is rotatably connected to the transparent dust cover 112. The transparent dust cover 112 can protect the flow meter 111 without affecting people's viewing of data.

[0043] When people need to detect the flow rate of water, they can use the detection mechanism 11 for detection. When water is flowing in the water pipe 1, the detection probe 113 will detect the flow rate of the water. At this time, people can observe the flow rate of water through the flow meter 111. In this way, when the water in the water pipe 1 is flowing, the detection probe 113 will detect the flow rate of the water, and people can also observe the flow rate of water through the flow meter 111, which is convenient for people to enter the later operation.

[0044] like Figure 1 、 Figure 2 、 Figure 14 and Figure 15 As shown, a filtering mechanism 12 is also included. The filtering mechanism 12 includes a connecting pipe 121, ribs 122 and a filter screen 123. The lower part of the water pipe 1 is connected to the connecting pipe 121, and three ribs 122 are welded on the connecting pipe 121 along the circumferential direction. The connecting pipe 121 is internally connected to the front and rear sides thereof. The filter screen 123 can filter impurities in the water.

[0045] Since the water contains necessary impurities, in order to make the water cleaner, the filter mechanism 12 can be used to filter the water. In the process of water flowing out from the back side of the water pipe 1, the water will flow backward through the filter mesh 123. At this time, the filter mesh 123 will filter the impurities in the water, making the water flowing out from the back side of the water pipe 1 cleaner. In this way, when flowing out from the back side of the water pipe 1, the filter mesh 123 will filter the impurities in the water, thereby improving the cleanliness of the water.

[0046] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A pressure electrical interlocking device for ensuring the supply of sealed water in a salt calcium production process, comprising a water pipe (1), a fixed shell (2), a fixed frame (3), a guide (4), a screw (5) and a sliding baffle (6), wherein the middle part of the water pipe (1) is connected to the fixed shell (2) in the vertical direction, the front side of the fixed shell (2) is connected to the fixed frame (3), the middle part of the fixed frame (3) is threadedly connected to a screw (5) capable of rotating, the screw (5) and the fixed shell (2) are rotatably connected, the rear side of the screw (5) is connected to a sliding baffle (6), the sliding baffle (6) is respectively connected to the fixed shell (2) and the fixed frame (3), the guide (4) is slidably connected to the fixed frame (3), the guide (4) and the screw (5) are threadedly connected, and the characteristic is that: It also includes a rotating mechanism (7) and an opening and closing mechanism (8), wherein the fixed frame (3) is provided with a rotating mechanism (7) for rotating the screw (5), and the fixed frame (3) is provided with an opening and closing mechanism (8) for opening and closing the upper part of the water pipe (1); The rotating mechanism (7) includes a bracket (71), a motor (72), a first full gear (73), a second full gear (74) and a nut (75). The bracket (71) is connected to the lower side of the fixing frame (3). The motor (72) is connected to the bracket (71). The output shaft of the motor (72) is connected to the second full gear (74) capable of rotating. The screw (5) is threadedly connected to the nut (75). The nut (75) is connected to the first full gear (73). The first full gear (73) and the second full gear (74) are meshed with each other. The opening and closing mechanism (8) includes a first rotating ball valve (81), a rotating disk (82), a connecting rod (83), a pressing rod (84), a sliding member (85), a fixed guide rail (86), a rotating member (87), a sliding frame (88), a connecting member (89) and a hexagonal member (810). The upper part of the water pipe (1) is rotatably connected to the first rotating ball valve (81), the front side of the first rotating ball valve (81) is connected to the rotating disk (82), the rotating disk (82) is connected to the connecting rod (83), the left and right sides of the lower part of the guide member (4) are connected to the pressing rod (84) that can be moved, the front part of the fixed frame (3) is slidably connected to the sliding member (85), the sliding member (85) and The pressing rod (84) contacts, the front side of the fixed frame (3) close to each other is rotatably connected with a rotating member (87), the rotating member (87) and the sliding member (85) are both rotatably and slidably connected, the middle side of the fixed frame (3) close to each other is connected with a fixed guide rail (86) with a guiding function, the fixed guide rail (86) is slidably connected with a sliding frame (88), the sliding frame (88) and the rotating member (87) are both rotatably and slidably connected, a connecting member (89) is connected between the two sliding frames (88), the connecting member (89) and the connecting rod (83) are both rotatably and slidably connected, and the rear side of the first rotating ball valve (81) is slidably connected with a hexagonal member (810); The water pipe (1) further comprises a diversion mechanism (9) for diverting water, the diversion mechanism (9) comprising a fixed pipe (91), a second rotating ball valve (92) and a hexagonal block (93), the rear side of the water pipe (1) being connected to the fixed pipe (91), the upper part of the fixed pipe (91) being rotatably connected to the second rotating ball valve (92) capable of rotating, the front side of the second rotating ball valve (92) being connected to the hexagonal block (93), and the hexagonal block (93) and the hexagonal piece (810) being snap-connected.

2. A pressure electrical interlocking device for ensuring the supply of sealing water in a salt calcium production process as claimed in claim 1, characterized in that: The invention also includes a pressure reducing mechanism (10) for reducing pressure. The pressure reducing mechanism (10) includes a pipe rack (101), a rotating cover (102), a flow guide (103) and a telescopic spring (104). The front side of the lower portion of the water pipe (1) is connected to the pipe rack (101). The front portion of the pipe rack (101) is threadedly connected to the rotating cover (102). The interior of the pipe rack (101) is slidably connected to the flow guide (103). A telescopic spring (104) with a reset function is connected between the flow guide (103) and the pipe rack (101). The telescopic spring (104) is sleeved on the flow guide (103).

3. A pressure electrical interlocking device for ensuring the supply of sealing water in a salt calcium production process as claimed in claim 2, characterized in that: The water pipe (1) further comprises a detection mechanism (11), wherein the detection mechanism (11) comprises a flow meter (111) and a detection probe (113). The detection probe (113) for detecting the flow rate of water is connected to the lower middle portion of the water pipe (1). The flow meter (111) is connected to the detection probe (113). The flow meter (111) is connected to the water pipe (1).

4. A pressure electrical interlocking device for ensuring the supply of sealing water in a salt calcium production process as claimed in claim 3, characterized in that: It also includes a transparent dust cover (112), and the front of the flow meter (111) is rotatably connected to the transparent dust cover (112).

5. A pressure electrical interlocking device for ensuring the supply of sealing water in a salt calcium production process as claimed in claim 4, characterized in that: The invention also includes a filtering mechanism (12) for filtering water. The filtering mechanism (12) includes a connecting pipe (121), ribs (122) and a filter screen (123). The lower part of the water pipe (1) is connected to the connecting pipe (121). Three ribs (122) are connected to the connecting pipe (121) along the circumferential direction. The filter screen (123) is connected to the front and rear sides of the connecting pipe (121).

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