An explosion-proof electromagnetic flowmeter

Abstract

The present invention provides an explosion-proof electromagnetic flowmeter, comprising an electromagnetic flowmeter and a valve body; a first clamping assembly and a second clamping assembly are respectively installed on both sides of the valve body, and the water inlet end of the valve body is connected to a water inlet pipe assembly through the first clamping assembly; the valve body comprises an outer shell, a fluid channel is installed in the middle of the outer shell, and avoidance assemblies are installed at both ends of the outer surface of the fluid channel and between the inner cavity wall of the outer shell, and the avoidance assembly is provided in two groups, and a first gate valve mechanism and a second gate valve mechanism are respectively connected at both ends of the outer shell, and a first clamping assembly is installed on one side of the first gate valve mechanism. The present invention can realize the detection of flowing liquid through the mutual cooperation of the electromagnetic flowmeter, the valve body, the first clamping assembly, the second clamping assembly, the water inlet pipe assembly and the drain pipe assembly. If an explosion occurs during the detection, the liquid can be blocked to prevent the liquid from flowing out and causing a secondary explosion.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic flowmeters, and in particular to an explosion-proof electromagnetic flowmeter. Background Art

[0002] In many industrial occasions, such as petroleum, chemical, natural gas and other industries, there are a lot of flammable and explosive gases or steam; ordinary electrical equipment may generate sparks and other ignition sources during operation, which will cause explosions once they encounter flammable gases or steam; explosion-proof electromagnetic flowmeters can work safely in these dangerous environments through special explosion-proof design to avoid explosion accidents caused by the equipment itself;

[0003] The current explosion-proof electromagnetic flowmeter has the following shortcomings: when installing, the explosion-proof electromagnetic flowmeter is installed in the middle of two sections of the pipeline to detect the liquid flow in the pipeline; however, because there is no valve installed in the electromagnetic flowmeter, and the valve is installed oppositely, when an explosion occurs in the pipeline, the internal liquid is still circulating. When the personnel close the valve, a time difference is likely to occur, resulting in the burning liquid being transported from the pipeline to the storage device, which is likely to cause a larger accident. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an explosion-proof electromagnetic flowmeter, which solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An explosion-proof electromagnetic flowmeter comprises an electromagnetic flowmeter and a valve body; a first clamping assembly and a second clamping assembly are respectively installed on both sides of the valve body, the water inlet end of the valve body is connected to a water inlet pipe assembly through the first clamping assembly, the water outlet end of the valve body is connected to a drain pipe assembly through the second clamping assembly, and the middle of the outer surface of the valve body is connected to the electromagnetic flowmeter; the valve body comprises an outer shell, a fluid channel is installed in the middle of the outer shell, avoidance assemblies are installed at both ends of the outer surface of the fluid channel and between the inner cavity wall of the outer shell, and the avoidance assemblies are provided in two groups, the two ends of the outer shell are respectively connected to the first gate valve mechanism and the second gate valve mechanism, and the two ends of the inner cavity of the fluid channel are respectively connected to the first gate valve mechanism and the second gate valve mechanism An inner cavity is connected, a first clamping assembly is installed on one side of the first gate valve mechanism, the input end of the first gate valve mechanism is connected to a water inlet pipe assembly through the first clamping assembly, a second clamping assembly is installed on one side of the second gate valve mechanism, and the output end of the second gate valve mechanism is connected to a drain pipe assembly through the second clamping assembly, a first unlocking assembly and a second unlocking assembly are installed at both ends of the inner cavity of the shell, the two ends of the first unlocking assembly are respectively connected to the avoidance assembly and the first gate valve mechanism, the two ends of the second unlocking assembly are respectively connected to the avoidance assembly and the second gate valve mechanism, a flange is fixedly connected to the middle part of the outer surface of the shell, the top surface of the flange is fixedly connected to an electromagnetic flowmeter by bolts, and a probe is fixedly connected to the inner cavity wall of the fluid channel.

[0007] Furthermore, the fluid channel includes an arc-shaped sheet, and there are 4 groups of the arc-shaped sheets in total. Step grooves are respectively provided on both sides of the arc-shaped sheets. The 4 groups of arc-shaped sheets are spliced ​​through the step grooves to form a hollow cylinder. Pairs of holes are respectively provided at both ends of the inner cavity of the hollow cylinder. The pairs of holes are spliced ​​by 4 groups of through-slots. Sealant liquid is applied to the connection between adjacent arc-shaped sheets. Slots are respectively provided at both ends of the arc-shaped sheets, and a probe is fixedly connected to the inside of the arc-shaped sheet.

[0008] Furthermore, the avoidance assembly includes an avoidance damping rod, and one end of the inner cavity wall of the shell is fixedly connected with the avoidance damping rod at equal intervals. There are four groups of avoidance damping rods in total, and one end of the avoidance damping rod is fixedly connected with an arc-shaped retaining plate, and one side of the arc-shaped retaining plate is fixedly connected to the outer surface of the arc-shaped plate.

[0009] Furthermore, the first gate valve mechanism includes a gate valve assembly, and energy storage assemblies are respectively installed on the upper and lower sides of the outer surface of the gate valve assembly, one side of the gate valve assembly is fixedly connected to a liquid flow pipe, one end of the liquid flow pipe is fixedly connected to a connecting pipe, one end of the connecting pipe is plugged into the socket, one end of the outer shell is fixedly connected to the liquid flow pipe, the other side of the gate valve assembly is fixedly connected to a docking pipe, one end of the docking pipe is fixedly connected to a docking plate, one side of the docking plate is provided with positioning holes at equal intervals, a sealing hole is provided in the middle of one side of the docking plate, and the inner cavity of the gate valve assembly is respectively connected to the liquid flow pipe and the inner cavity of the docking pipe.

[0010] Furthermore, the gate valve assembly includes a valve body, an inner cavity of the valve body is provided with a valve slot, a valve plate is slidably connected in the valve slot, threaded sleeves are rotatably connected on both sides of the valve body, a movable threaded rod is internally threadedly connected to the threaded sleeve, and one end of the movable threaded rod is fixedly connected to the valve plate.

[0011] Furthermore, the energy storage assembly includes a track, a rotating rod and a bracket, the two sides of the valve body are respectively fixedly connected to the track and the bracket, the two sides of the valve body are respectively rotatably connected to the rotating rod, the upper part of the outer surface of the rotating rod is rotatably connected to the transmission rod through a worm and a worm wheel, the transmission rod is rotatably connected inside the bracket, one end of the transmission rod is rotatably connected to a threaded sleeve through a sprocket set and a chain, the lower part of the outer surface of the rotating rod is fixedly connected to a transmission gear, the transmission gear is meshed with a transmission rack, the transmission rack is located on the track and slides, the top surface of the transmission rack and the top surface of the valve body are fixedly connected with an energy storage damping rod, and one side of the energy storage damping rod is fixedly connected to a block; the second gate valve mechanism adopts the same structure as the first gate valve mechanism and is symmetrically installed.

[0012] Furthermore, the first unlocking component includes an unlocking groove, and unlocking grooves are respectively provided at both ends of one side of the shell, a sleeve rod is slidably connected in the unlocking groove, and shielding plates are fixedly connected to the outer surface of the sleeve rod and on both sides of the unlocking groove, one end of the sleeve rod is fixedly connected to a lifting plate, one side of the lifting plate is in contact with one side of the arc-shaped stop plate, a reciprocating damping rod is fixedly connected to the top surface of the sleeve rod and located between the inner walls of the shell, an inclined block rod is slidably connected to the inner cavity of the other end of the sleeve rod, and a forward push damping rod is fixedly connected to one side of the inclined block rod and located between the sleeve rods; the second unlocking component adopts the same structure as the first unlocking component and is symmetrically installed.

[0013] Furthermore, the first clamping assembly includes a vertical rod, and the two ends of one side of the valve body are respectively fixedly connected to the vertical rod, a dovetail groove is provided on one side of the vertical rod, a two-way threaded rod is rotatably connected in the dovetail groove, and the two ends of the outer surface of the two-way threaded rod are respectively threadedly connected to an arc-shaped clamping block, an arc-shaped groove is provided in the middle of the arc-shaped clamping block, and a locking component is installed on one side of the vertical rod.

[0014] Furthermore, the locking component includes a reset damping rod, one side of the vertical rod is fixedly connected to the reset damping rod, one end of the reset damping rod is fixedly connected to a U-shaped retaining frame, and both ends of the U-shaped retaining frame respectively pass through the vertical rod and slide in the dovetail groove.

[0015] Furthermore, the water inlet pipe assembly includes a water inlet pipe, one end of the outer surface of the water inlet pipe is fixedly connected to a disc, one side of the disc is fixedly connected to a positioning rod at equal intervals, one end of the positioning rod is plugged into the positioning hole, a convex disc is fixedly connected to the middle of one side of the disc, one end of the convex disc is plugged into the sealing hole, and the drain pipe assembly adopts the same structure as the water inlet pipe assembly and is symmetrically installed.

[0016] The present invention provides an explosion-proof electromagnetic flowmeter. Compared with the prior art, it has the following beneficial effects:

[0017] 1. The fluid channel is composed of 4 groups of arc-shaped pieces, and glue is applied between the arc-shaped pieces to prevent leakage of the fluid channel when the liquid is flowing; when the liquid explodes, the connection of the arc-shaped pieces is blown open, allowing the liquid to enter the shell, avoiding damage to the shell, protecting the entire valve body, and preventing the liquid from flowing out of the shell to cause a secondary accident;

[0018] 2. When an explosion occurs inside the fluid channel, the fluid channel will be torn into pieces. When the four groups of arc-shaped pieces move toward the periphery, the arc-shaped pieces will separate from the energy storage assembly. After separation, the gate valve assembly can be closed by the energy storage assembly, so that the valve body, the water inlet pipe assembly and the drain pipe assembly are separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The overall structural diagram of the present invention is shown;

[0021] Figure 2Another structural diagram of the present invention is shown;

[0022] Figure 3 The schematic diagram of the structure of the water inlet pipe assembly of the present invention is shown;

[0023] Figure 4 A schematic diagram of the structure of the first clamping assembly of the present invention is shown;

[0024] Figure 5 A schematic structural diagram of the first clamping assembly of the present invention from another viewing angle is shown;

[0025] Figure 6 The schematic diagram of the valve body structure of the present invention is shown;

[0026] Figure 7 A schematic diagram of the partial cross-sectional structure of the valve body of the present invention is shown;

[0027] Figure 8 A schematic diagram of the structure of the avoidance component of the present invention is shown;

[0028] Fig. 9 A schematic diagram of the flow channel structure of the present invention is shown;

[0029] Fig.10 A schematic diagram of the structure of the first gate valve mechanism of the present invention is shown;

[0030] Fig.11 A schematic structural diagram of the first gate valve mechanism of the present invention from another viewing angle is shown;

[0031] Fig.12 A schematic structural diagram of a first gate valve assembly of the present invention is shown;

[0032] Fig.13 A schematic diagram of the structure of the first unlocking component of the present invention is shown;

[0033] As shown in the figure: 1. electromagnetic flowmeter; 2. valve body; 21. shell; 22. fluid channel; 221. arc piece; 222. step groove; 223. slot; 23. avoidance component; 231. avoidance damping rod; 232. arc-shaped abutment piece; 24. first gate valve mechanism; 241. gate valve component; 2411. valve body; 2412. valve groove; 2413. valve plate; 2414. threaded sleeve; 2415. movable threaded rod; 242. energy storage component; 2421. track; 2422. rotating rod; 2423. bracket; 2424. transmission rod; 2425. transmission gear; 2426. transmission rack; 2427. energy storage damping rod; 2428. block; 243. liquid pipe; 244. connecting pipe; 245. butt pipe ; 246, docking plate; 247, positioning hole; 248, sealing hole; 25, second gate valve mechanism; 26, first unlocking assembly; 261, unlocking groove; 262, sleeve rod; 263, baffle plate; 264, lifting plate; 265, reciprocating damping rod; 266, inclined block rod; 267, forward push damping rod; 27, second unlocking assembly; 28, flange; 29, probe; 3, first clamping assembly; 31, vertical rod; 32, dovetail groove; 33, two-way threaded rod; 34, arc clamping block; 35, arc groove; 36, locking component; 361, reset damping rod; 362, U-shaped baffle; 4, second clamping assembly; 5, water inlet pipe assembly; 51, water inlet pipe; 52, disc; 53, positioning rod; 54, convex disc; 6, drain pipe assembly. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to solve the technical problems in the background technology, the following explosion-proof electromagnetic flowmeter is provided:

[0036] Combination Figure 1-Figure 13As shown, an explosion-proof electromagnetic flowmeter provided by the present invention comprises an electromagnetic flowmeter 1 and a valve body 2; a first clamping assembly 3 and a second clamping assembly 4 are respectively installed on both sides of the valve body 2, a water inlet end of the valve body 2 is connected to a water inlet pipe assembly 5 through the first clamping assembly 3, a water outlet end of the valve body 2 is connected to a drain pipe assembly 6 through the second clamping assembly 4, and the electromagnetic flowmeter 1 is connected to the middle of the outer surface of the valve body 2; the valve body 2 comprises a shell 21, a fluid channel 22 is installed in the middle of the shell 21, avoidance assemblies 23 are installed at both ends of the outer surface of the fluid channel 22 and between the inner cavity walls of the shell 21, and the avoidance assemblies 23 are provided in two groups, and the two ends of the shell 21 are respectively connected to the first gate valve mechanism 24 and the second gate valve mechanism 25, and the two ends of the inner cavity of the fluid channel 22 are respectively connected to the first gate valve mechanism 24 and the second gate valve mechanism 25. The first gate valve mechanism 25 is connected to the inner cavity of the housing 21, a first clamping assembly 3 is installed on one side of the first gate valve mechanism 24, the input end of the first gate valve mechanism 24 is connected to the water inlet pipe assembly 5 through the first clamping assembly 3, a second clamping assembly 4 is installed on one side of the second gate valve mechanism 25, and the output end of the second gate valve mechanism 25 is connected to the drain pipe assembly 6 through the second clamping assembly 4, a first unlocking assembly 26 and a second unlocking assembly 27 are respectively installed at both ends of the inner cavity of the housing 21, the two ends of the first unlocking assembly 26 are respectively connected to the avoidance assembly 23 and the first gate valve mechanism 24, the two ends of the second unlocking assembly 27 are respectively connected to the avoidance assembly 23 and the second gate valve mechanism 25, a flange 28 is fixedly connected to the middle part of the outer surface of the housing 21, the top surface of the flange 28 is fixedly connected to the electromagnetic flowmeter 1 by bolts, and a probe 29 is fixedly connected to the inner cavity wall of the fluid channel 22.

[0037] By using the probe 29 in the fluid channel 22 in conjunction with the electromagnetic flowmeter 1 , the liquid flow in the fluid channel 22 can be detected.

[0038] In this embodiment, the fluid channel 22 includes an arc-shaped piece 221, and there are 4 groups of arc-shaped pieces 221. Step grooves 222 are respectively provided on both sides of the arc-shaped pieces 221. The 4 groups of arc-shaped pieces 221 are spliced ​​together through the step grooves 222 to form a hollow cylinder. Pairs of plug holes are respectively provided at both ends of the inner cavity of the hollow cylinder. The pairs of plug holes are spliced ​​by 4 groups of through-slots 223. The connection between adjacent arc-shaped pieces 221 is smeared with sealing glue. Slots 223 are respectively provided at both ends of the arc-shaped pieces 221. The inside of the arc-shaped pieces 221 is fixedly connected to the probe 29; the avoidance component 23 includes an avoidance damping rod 231. Avoidance damping rods 231 are fixedly connected to one end of the inner cavity wall of the shell 21 at equal intervals. There are 4 groups of avoidance damping rods 231. One end of the avoidance damping rod 231 is fixedly connected to an arc-shaped retaining piece 232, and one side of the arc-shaped retaining piece 232 is fixedly connected to the outer surface of the arc-shaped piece 221.

[0039] Since the fluid channel 22 is composed of four groups of arc-shaped pieces 221, and glue is applied between the arc-shaped pieces 221, leakage can be prevented from occurring in the fluid channel 22 when liquid is flowing therethrough. When the liquid explodes, the connection between the arc-shaped pieces is blown open, allowing the liquid to enter the outer shell, thereby avoiding damage to the outer shell, protecting the entire valve body, and preventing the liquid from flowing out of the outer shell to cause a secondary accident.

[0040] like Figure 1-Figure 13 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0041] In order to block the water inlet pipe assembly 5 from the valve body 2, or block the drain pipe assembly 6 from the valve body 2, the present embodiment provides the following technical solutions:

[0042] The first gate valve mechanism 24 includes a gate valve assembly 241, and energy storage assemblies 242 are respectively installed on the upper and lower sides of the outer surface of the gate valve assembly 241, a liquid flow pipe 243 is fixedly connected to one side of the gate valve assembly 241, one end of the liquid flow pipe 243 is fixedly connected to a connecting pipe 244, one end of the connecting pipe 244 is plugged into the plug hole, one end of the shell 21 is fixedly connected to the liquid flow pipe 243, the other side of the gate valve assembly 241 is fixedly connected to a docking pipe 245, one end of the docking pipe 245 is fixedly connected to a docking plate 246, one side of the docking plate 246 is provided with positioning holes 247 at equal intervals, and a sealing hole 248 is provided in the middle of one side of the docking plate 246, and the inner cavity of the gate valve assembly 241 is respectively connected to the inner cavity of the liquid flow pipe 243 and the docking pipe 245. The gate valve assembly 241 includes a valve body 2411, the inner cavity of the valve body 2411 is provided with a valve slot 2412, a valve plate 2413 is slidably connected in the valve slot 2412, threaded sleeves 2414 are rotatably connected on both sides of the valve body 2411, a movable threaded rod 2415 is threadedly connected to the inner thread of the threaded sleeve 2414, and one end of the movable threaded rod 2415 is fixedly connected to the valve plate 2413. The energy storage assembly 242 includes a track 2421, a rotating rod 2422 and a bracket 2423, the two sides of the valve body 2411 are fixedly connected with the track 2421 and the bracket 2423, the two sides of the valve body 2411 are rotatably connected with the rotating rod 2422, the upper part of the outer surface of the rotating rod 2422 is rotatably connected with the transmission rod 2424 through a worm gear and a worm wheel, the transmission rod 2424 is rotatably connected in the bracket 2423, and one end of the transmission rod 2424 is rotatably connected with the threaded sleeve 2414 through a sprocket set and a chain. 414, a transmission gear 2425 is fixedly connected to the lower part of the outer surface of the rotating rod 2422, and the transmission gear 2425 is meshingly connected to a transmission rack 2426, which slides on the track 2421, and an energy storage damping rod 2427 is fixedly connected between the top surface of the transmission rack 2426 and the top surface of the valve body 2411, and a stopper 2428 is fixedly connected to one side of the energy storage damping rod 2427; the second gate valve mechanism 25 adopts the same structure as the first gate valve mechanism 24, and is symmetrically installed.

[0043] By rotating the rotating rod 2422, when the rotating rod 2422 rotates, the transmission rod 2424 and the transmission gear 2425 will be driven to rotate. When the transmission gear 2425 rotates, the transmission rack 2426 will be driven to move, so that the transmission rack 2426 squeezes the energy storage damping rod 2427. At the same time, the rotation of the transmission rod 2424 will drive the threaded sleeve 2414 to rotate, so that the moving threaded rod 2415 drives the valve plate 2413 to move backward, so that the valve body 2411 can be opened. When the transmission rack 2426 is no longer blocked by the first unlocking component 26, the transmission rack 2426 will move in the opposite direction under the action of the energy storage damping rod 2427, so that the valve body 2411 can be closed.

[0044] In order to prevent the liquid from flowing into the drain pipe assembly 6 and the water inlet pipe assembly 5 during the explosion, thereby causing a larger explosion, the present embodiment provides the following technical solutions:

[0045] In this embodiment, the first unlocking component 26 includes an unlocking groove 261, and the unlocking grooves 261 are respectively provided at both ends of one side of the shell 21. A sleeve rod 262 is slidably connected in the unlocking groove 261, and the outer surface of the sleeve rod 262 and the two sides of the unlocking groove 261 are respectively fixedly connected with shielding plates 263, one end of the sleeve rod 262 is fixedly connected with a lifting plate 264, one side of the lifting plate 264 is in contact with one side of the arc-shaped stop piece 232, and a reciprocating damping rod 265 is fixedly connected to the top surface of the sleeve rod 262 and located between the inner walls of the shell 21, and the inner cavity of the other end of the sleeve rod 262 is slidably connected with an inclined block rod 266, and one side of the inclined block rod 266 and located between the sleeve rod 262 is fixedly connected with a forward push damping rod 267; the second unlocking component 27 adopts the same structure as the first unlocking component 26 and is symmetrically installed.

[0046] When an explosion occurs inside the fluid channel 22, the fluid channel 22 will be torn into pieces. When the four groups of arc-shaped pieces 221 move toward the periphery, they will squeeze the lifting plate 264. When the lifting plate 264 moves upward, it will drive the sleeve rod 262 to move upward. When the sleeve rod 262 moves upward, it will drive the inclined block rod 266 to move upward. When the inclined block rod 266 moves upward, it will separate from the energy storage assembly 242. After separation, the gate valve assembly 241 can be closed by the energy storage assembly 242, so that the valve body 2, the water inlet pipe assembly 5 and the drain pipe assembly 6 are separated and isolated.

[0047] like Figure 1-Figure 13 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0048] In order to realize the fixed connection between the water inlet pipe assembly 5 and the drain pipe assembly 6 and the valve body 2, the present embodiment provides the following technical solution:

[0049] The first clamping assembly 3 includes a vertical rod 31, and the two ends of one side of the valve body 2411 are respectively fixedly connected with the vertical rod 31, a dovetail groove 32 is provided on one side of the vertical rod 31, a bidirectional threaded rod 33 is rotatably connected in the dovetail groove 32, and arc-shaped clamping blocks 34 are respectively threadedly connected at both ends of the outer surface of the bidirectional threaded rod 33, an arc-shaped groove 35 is provided in the middle of the arc-shaped clamping block 34, and a locking component 36 is installed on one side of the vertical rod 31. The locking component 36 includes a reset damping rod 361, one side of the vertical rod 31 is fixedly connected to the reset damping rod 361, one end of the reset damping rod 361 is fixedly connected to a U-shaped retaining frame 362, both ends of the U-shaped retaining frame 362 respectively penetrate the vertical rod 31 and slide in the dovetail groove 32, the water inlet pipe assembly 5 includes an inlet pipe 51, one end of the outer surface of the water inlet pipe 51 is fixedly connected to a disc 52, one side of the disc 52 is fixedly connected to a positioning rod 53 at equal intervals, one end of the positioning rod 53 is plugged into the positioning hole 247, a convex disc 54 is fixedly connected to the middle of one side of the disc 52, one end of the convex disc 54 is plugged into the sealing hole 248, and the drain pipe assembly 6 adopts the same structure as the water inlet pipe assembly 5 and is symmetrically installed.

[0050] The installation method of the water inlet pipe assembly 5 is the same as that of the drain pipe assembly 6. During installation, first, one end of the positioning rod 53 is inserted into the positioning hole 247, and at the same time, the convex disc 54 is also inserted into the sealing hole 248. After insertion, before rotating the two-way threaded rod 33, it is necessary to pull the U-shaped retaining frame 362 so that one end of the U-shaped retaining frame 362 is disengaged from the dovetail groove 32. After disengagement, at this time, the two-way threaded rod 33 drives the two sets of arc-shaped clamping blocks 34 to move towards each other, and then, the disc 52 and the docking plate 246 are engaged with the inside through the arc groove 35, so that the connection between the water inlet pipe assembly 5 and the valve body 2 can be achieved. After connection, release the U-shaped retaining frame 362, and the U-shaped retaining frame 362 will be reset under the action of the reset damping rod 361. After resetting, the arc clamping block 34 can be blocked to prevent the arc clamping block 34 from moving due to vibration and other reasons in the later stage, resulting in a loose clamping situation.

[0051] The working principle and use process of the present invention:

[0052] In use:

[0053] During installation, first, the water inlet pipe assembly 5 and the drain pipe 6 are installed. Since the installation method of the water inlet pipe assembly 5 is the same as that of the drain pipe assembly 6, during installation, first, one end of the positioning rod 53 is inserted into the positioning hole 247, and at the same time, the convex disc 54 is also inserted into the sealing hole 248. After insertion, before rotating the two-way threaded rod 33, it is necessary to pull the U-shaped retaining frame 362 so that one end of the U-shaped retaining frame 362 is disengaged from the dovetail groove 32. After disengagement, the two-way threaded rod 33 drives the two sets of arc-shaped clamping blocks 34 to move toward each other, and then the disc 52 and the docking disc 246 are clamped inside through the arc groove 35, so that the clamping and positioning of the water inlet pipe assembly 5 and the valve body 2 can be achieved;

[0054] Release the U-shaped blocking frame 362, and the U-shaped blocking frame 362 will be reset under the action of the reset damping rod 361. After being reset, the arc-shaped clamping block 34 can be blocked;

[0055] When in use, when the liquid flows into the valve body 2 through the water inlet pipe assembly 5, it will be detected by the probe 29 in the valve body 2. At this time, under the action of the electromagnetic flowmeter 1, the flow rate of the liquid flowing through the valve body 2 can be calculated;

[0056] When it is necessary to close the switch, first, move the inclined block rod 266 in the first unlocking assembly 26. As the inclined block rod 266 moves, it will squeeze the forward push damping rod 267, and at the same time, the inclined block rod 266 will be disengaged from the blocking block 2428. After disengagement, the transmission rack 2426 will be reset under the action of the energy storage damping rod 2427. When resetting, it will drive the transmission gear 2425 to rotate, and at the same time, it will also drive the rotating rod 2422 to rotate. When the rotating rod 2422 rotates, it will drive the transmission rod 2424 to rotate. When the transmission rod 2424 rotates, it will drive the threaded sleeve 2414 to rotate, thereby driving the threaded rod 2415 to move forward, thereby driving the two sets of gate plates 2413 to move in opposite directions, thereby achieving closing of the switch, which is convenient for later maintenance and replacement;

[0057] When an explosion occurs in the valve body 2, the arc-shaped pieces 221 formed by the four groups of splicing can be exploded. As the arc-shaped pieces 221 are cracked, the damping rod 231 will be squeezed and avoided. At the same time, the liquid in the fluid channel 22 will flow into the shell 21, avoiding liquid leakage; as the arc-shaped piece 221 drives the arc-shaped piece 232 to move, the lifting plate 264 will be driven to move upward, and the lifting plate 264 will move upward to drive the sleeve rod 262 and the inclined block rod 266 to move upward. Since the unlocking groove 261 is sealed under the action of the shielding plate 263, the liquid cannot flow out of the shell 21. As the inclined block rod 266 moves upward, the stopper 2428 on one side of the transmission rack 2426 is disengaged. After disengagement, the valve plate 2413 is driven to move through the transmission rack 2426;

[0058] When opening the gate, it is only necessary to rotate the rotating rod 2422, and the rotating rod 2422 drives the threaded sleeve 2414 and the transmission gear 2425 to rotate. When the threaded sleeve 2414 rotates, the gate can be opened. When the transmission gear 2425 rotates, it will drive the transmission rack 2426 to move, so that the block 2428 on one side of the transmission rack 2426 passes over the inclined block rod 266 to complete the gate opening.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An explosion-proof electromagnetic flowmeter, characterized in that: It comprises an electromagnetic flowmeter and a valve body; a first clamping assembly and a second clamping assembly are respectively installed on both sides of the valve body, the water inlet end of the valve body is connected to a water inlet pipe assembly through the first clamping assembly, the water outlet end of the valve body is connected to a drain pipe assembly through the second clamping assembly, and the middle of the outer surface of the valve body is connected to the electromagnetic flowmeter; The valve body comprises a shell, a fluid channel is installed in the middle of the shell, avoidance components are installed at both ends of the outer surface of the fluid channel and between the inner cavity wall of the shell, and two groups of avoidance components are provided, the two ends of the shell are respectively connected with a first gate valve mechanism and a second gate valve mechanism, the two ends of the inner cavity of the fluid channel are respectively connected with the inner cavity of the first gate valve mechanism and the second gate valve mechanism, a first clamping component is installed on one side of the first gate valve mechanism, the input end of the first gate valve mechanism is connected with a water inlet pipe component through the first clamping component, a second clamping component is installed on one side of the second gate valve mechanism, and the output end of the second gate valve mechanism is connected with a drain pipe component through the second clamping component, a first unlocking component and a second unlocking component are respectively installed at both ends of the inner cavity of the shell, the two ends of the first unlocking component are respectively connected with the avoidance component and the first gate valve mechanism, the two ends of the second unlocking component are respectively connected with the avoidance component and the second gate valve mechanism, a flange is fixedly connected to the middle of the outer surface of the shell, an electromagnetic flowmeter is fixedly connected to the top surface of the flange by bolts, and a probe is fixedly connected to the inner cavity wall of the fluid channel; The fluid channel includes an arc-shaped sheet, the avoidance assembly includes an avoidance damping rod, one end of the inner cavity wall of the shell is fixedly connected with the avoidance damping rod at equal intervals, and a total of 4 groups of the avoidance damping rods are provided, one end of the avoidance damping rod is fixedly connected with an arc-shaped retaining sheet, and one side of the arc-shaped retaining sheet is fixedly connected to the outer surface of the arc-shaped sheet; The first gate valve mechanism comprises a gate valve assembly, energy storage assemblies are respectively installed on the upper and lower sides of the outer surface of the gate valve assembly, a liquid discharge pipe is fixedly connected to one side of the gate valve assembly, a connecting pipe is fixedly connected to one end of the liquid discharge pipe, one end of the connecting pipe is plugged into the plug hole, a liquid discharge pipe is fixedly connected to one end of the shell, a butt joint pipe is fixedly connected to the other side of the gate valve assembly, a butt joint pipe is fixedly connected to one end of the butt joint pipe, a butt joint plate is fixedly connected to one side of the butt joint plate with positioning holes arranged at equal intervals, a sealing hole is arranged in the middle of one side of the butt joint plate, and the inner cavity of the gate valve assembly is respectively connected to the liquid discharge pipe and the inner cavity of the butt joint pipe; The first unlocking assembly comprises an unlocking slot, two ends of one side of the shell are respectively provided with unlocking slots, a sleeve rod is slidably connected in the unlocking slot, and shielding plates are fixedly connected to the outer surface of the sleeve rod and on both sides of the unlocking slot, one end of the sleeve rod is fixedly connected to a lifting plate, one side of the lifting plate is in contact with one side of the arc-shaped stop sheet, a reciprocating damping rod is fixedly connected to the top surface of the sleeve rod and located between the inner walls of the shell, an inclined block rod is slidably connected to the inner cavity of the other end of the sleeve rod, and a forward push damping rod is fixedly connected to one side of the inclined block rod and located between the sleeve rods; the second unlocking assembly adopts the same structure as the first unlocking assembly and is symmetrically installed; The first clamping assembly includes a vertical rod, and the two ends of one side of the valve body are respectively fixedly connected with the vertical rod, a dovetail groove is provided on one side of the vertical rod, a two-way threaded rod is rotatably connected in the dovetail groove, and arc-shaped clamping blocks are respectively threadedly connected at both ends of the outer surface of the two-way threaded rod, an arc-shaped groove is provided in the middle of the arc-shaped clamping block, and a locking component is installed on one side of the vertical rod.

2. An explosion-proof electromagnetic flowmeter according to claim 1, characterized in that: There are 4 groups of arc-shaped sheets in total, and both sides of the arc-shaped sheets are respectively provided with stepped grooves. The 4 groups of arc-shaped sheets are spliced ​​together through the stepped grooves to form a hollow cylinder. Both ends of the inner cavity of the hollow cylinder are respectively provided with pairs of plug holes, and the pairs of plug holes are spliced ​​by 4 groups of through-slots. The connection between adjacent arc-shaped sheets is smeared with sealing glue, and both ends of the arc-shaped sheets are respectively provided with slots, and the inside of the arc-shaped sheet is fixedly connected with a probe.

3. An explosion-proof electromagnetic flowmeter according to claim 2, characterized in that: The gate valve assembly includes a valve body, an inner cavity of the valve body is provided with a valve slot, a valve plate is slidably connected in the valve slot, threaded sleeves are rotatably connected on both sides of the valve body, a movable threaded rod is internally threadedly connected to the threaded sleeve, and one end of the movable threaded rod is fixedly connected to the valve plate.

4. The explosion-proof electromagnetic flowmeter according to claim 3, characterized in that: The energy storage assembly includes a track, a rotating rod and a bracket. The two sides of the valve body are respectively fixedly connected to the track and the bracket. The two sides of the valve body are respectively rotatably connected to the rotating rod. The upper part of the outer surface of the rotating rod is rotatably connected to the transmission rod through a worm and a worm wheel. The transmission rod is rotatably connected inside the bracket. One end of the transmission rod is rotatably connected to a threaded sleeve through a sprocket set and a chain. The lower part of the outer surface of the rotating rod is fixedly connected to a transmission gear. The transmission gear is meshed with a transmission rack. The transmission rack is located on the track and slides. An energy storage damping rod is fixedly connected between the top surface of the transmission rack and the top surface of the valve body, and a block is fixedly connected to one side of the energy storage damping rod. The second gate valve mechanism adopts the same structure as the first gate valve mechanism and is symmetrically installed.

5. The explosion-proof electromagnetic flowmeter according to claim 4, characterized in that: The locking component comprises a reset damping rod, one side of the vertical rod is fixedly connected with the reset damping rod, one end of the reset damping rod is fixedly connected with a U-shaped retaining frame, and both ends of the U-shaped retaining frame respectively penetrate the vertical rod and slide in the dovetail groove.

6. An explosion-proof electromagnetic flowmeter according to claim 5, characterized in that: The water inlet pipe assembly includes a water inlet pipe, one end of the outer surface of the water inlet pipe is fixedly connected to a disc, one side of the disc is fixedly connected to a positioning rod at equal intervals, one end of the positioning rod is plugged into a positioning hole, a convex disc is fixedly connected to the middle of one side of the disc, one end of the convex disc is plugged into a sealing hole, and the drain pipe assembly adopts the same structure as the water inlet pipe assembly.

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