Chemical valve with good sealing effect

Abstract

The invention relates to the technical field of chemical valves, and discloses a chemical valve with a good sealing effect, the chemical valve comprises a protection device and a valve body, the outward end of the valve body is in threaded connection with a sealing device, the valve body is installed in the protection device, and the protection device comprises a fixed base, a limiting connecting block and a buffer assembly. The fixed base is installed on the surface of the bottom end of the buffering assembly, and the limiting connecting block is installed at the upper end of the buffering assembly. According to the chemical valve with the good sealing effect, the U-shaped connecting frame, the limiting connecting block and the second clamping block are arranged, the damper and the U-shaped connecting frame can be in threaded connection through the limiting connecting block, so that a connecting pipeline can be clamped and fixed, the safety of the connecting pipeline can be protected, meanwhile, the U-shaped connecting frame and the second clamping block can be connected through the limiting connecting block, and the sealing effect is good. And the valve body is clamped and fixed, so that the safety of the valve body can be protected, and the service time of the device can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of chemical valves, in particular to a chemical valve with good sealing effect. Background Art

[0002] Chemical valves are devices used to control the flow, pressure, temperature and other parameters of the medium in the chemical process. They control the on-off, flow direction or flow rate of the fluid by changing the relative position between the valve core, valve disc or valve seat.

[0003] The prior art discloses an application number: CN202111039598.1, a valve with a function of preventing chemical product leakage, comprising a valve body, both sides of the outer surface of the valve body are provided with an internal thread connection port A, the internal thread connection port A extends to the inside of the valve body, the outer side of the internal thread connection port A is provided with a flange A fixedly sleeved on the outer surface of the valve body, one side of the flange A is provided with an external thread sleeve, the outer surfaces of the two groups of the fixed blocks on the same side are provided with a semicircular fixed ring A, the semicircular fixed ring A and the two fixed blocks are horizontally penetrated by a short shaft, and the outer surfaces of the two groups of the fixed blocks on the other side are provided with a semicircular fixed ring B, the semicircular fixed ring B and the two fixed blocks are horizontally penetrated by a short shaft. The present invention collects chemical products leaked from the valve body through a collection box, thereby preventing the leaked chemical products from causing damage to the human body, increasing the safety of the valve, and increasing the sealing performance of the connection between the valve body and the water pipe through the external thread sleeve.

[0004] The valve body is clamped and fixed by the semicircular fixing ring B and the semicircular fixing ring A. However, when facing valve bodies of different specifications, the semicircular fixing ring B and the semicircular fixing ring A need to be disassembled and replaced. However, the replacement of the semicircular fixing ring B and the semicircular fixing ring A is more troublesome, which makes it more troublesome for the semicircular fixing ring B and the semicircular fixing ring A to clamp valve bodies of different specifications. Summary of the invention

[0005] The object of the present invention is to provide a chemical valve with good sealing effect to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a chemical valve with good sealing effect, comprising a protective device and a valve, wherein the outward end of the valve is threadedly connected with a sealing device, and the valve is installed inside the protective device.

[0007] The protection device comprises a fixed base, a limiting connection block and a buffer assembly, wherein the fixed base is mounted on the bottom surface of the buffer assembly, and the limiting connection block is mounted on the upper end of the buffer assembly.

[0008] The buffer assembly includes a protective shell, a U-shaped connecting frame, a clamp block 1, a fixed threaded rod, a damper, a buffer spring, a connecting metal plate and a clamp block 2. The connecting metal plate is fixedly connected to the surface of the protective shell, the connecting metal plate is installed on the upper end of the internal piston rod of the damper, the connecting metal plate is connected to the top surface of the buffer spring, the clamp block 1 is inserted into the inner bottom surface of the protective shell, the fixed threaded rod is fixedly connected to the top surface of the clamp block 1, the clamp block 2 is threadedly connected to the top surface of the clamp block 1, and the U-shaped connecting frame is movably connected to the outward side surface of the protective shell.

[0009] The sealing device includes a connecting pipe, a flange, a sealing ring and a limiting threaded rod. The flange is fixedly connected to the outward end of the connecting pipe, the limiting threaded rod is fixedly connected to the outward side surface of the flange, and the sealing ring is installed on the outward side surface of the flange.

[0010] The valve comprises a valve body, a valve cover, a connecting rod, a turntable and a valve core, wherein the valve cover is threadedly connected to the upper end of the valve body, the connecting rod is installed on the inner wall surface of the valve cover, the connecting rod is plugged into the inner wall surface of the valve core, and the turntable is installed on the top end surface of the connecting rod.

[0011] Preferably, the valve core is installed on the inner wall surface of the valve body, the connecting rod is inserted in the middle position of the valve body, the connecting rod is inserted into the interior of the valve body, and the valve body is inserted into the inner wall surface of the valve core, so that the position of the valve core can be determined, and the valve core can be disassembled and replaced conveniently.

[0012] Preferably, the clamp block 1 is movably connected to the outward end of the valve body, and the clamp block 2 is movably connected to the outward end of the valve body. The clamp block 2 and the clamp block 1 can clamp and fix the valve body, making it convenient to disassemble and replace the valve body.

[0013] Preferably, the sealing ring is movably connected to the outward surface of the valve body, the flange is threadedly connected to the outward right end of the valve body, the connecting pipe is inserted into the outward end of the valve body, and the connecting pipe is inserted into the outward movement of the valve body, so that the sealing ring and the flange are threadedly connected to the outward surface of the valve body, thereby enabling the connection between the valve body and the connecting pipe to be in a sealed state. At the same time, the flange can completely wrap the outward end of the valve body, thereby preventing gas or liquid from overflowing between the valve body and the connecting pipe.

[0014] Preferably, the fixed threaded rod is inserted into the inner wall surface of the clamp block 2, and the clamp block 1 and the clamp block 2 are limited by the fixed threaded rod, and then the nut is rotated, the nut can lock and fix the clamp block 2 and the clamp block 1, which can effectively prevent the valve body from detaching from the protective shell.

[0015] Preferably, the damper is movably connected to the top surface of the fixed base, the buffer spring is movably connected to the top surface of the fixed base, the damper is located inside the second clamp, the damper and the buffer spring can push the protective shell to perform buffering and shock absorption operations, and can keep the device of the protective shell in a safe state.

[0016] Preferably, the limiting connection block is threadedly connected to the top surface of the U-shaped connection frame, and the limiting connection block is threadedly connected to the top surface of the clamp block 2. The limiting connection block can threadably fix the clamp block 2 and the U-shaped connection frame, making it convenient to disassemble and replace the U-shaped connection frame and the clamp block 2.

[0017] Preferably, the connecting pipe is installed on the outward end of the protective shell, and the U-shaped connecting frame is movably connected to the surface of the connecting pipe. The U-shaped connecting frame is also on the outward side surface of the protective shell, so that the U-shaped connecting frame and the connecting pipe are movably connected, thereby being able to support the connecting pipe, thereby being able to protect the stability of the connecting pipe and the safety of the connecting pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The chemical valve with good sealing effect is provided with a U-shaped connection frame, a limit connection block and a clamp block 2. The limit connection block can threadably connect the damper and the U-shaped connection frame, so that the connecting pipe can be clamped and fixed, thereby protecting the safety of the connecting pipe. At the same time, the U-shaped connection frame and the clamp block 2 can clamp and fix the valve body with the help of the limit connection block, thereby protecting the safety of the valve body.

[0020] 2. The chemical valve with good sealing effect is provided with a buffer spring, a damper and a connecting metal plate. The damper and the buffer spring can perform a buffering operation on the protective shell, so that the valve body inside the protective shell can be in a safe state, thereby increasing the service life of the device.

[0021] 3. The chemical valve with good sealing effect is provided with a connecting pipe, a valve body, a protective shell and a clamping block. The valve body and the connecting pipe are inserted into the interior of the protective shell. The protective shell and the U-shaped connecting frame can maintain the stability of the connecting pipe and the valve body, and can avoid gas or liquid leakage between the connecting pipe and the valve body, thereby increasing the service life of the device.

[0022] 4. The chemical valve with good sealing effect is provided with a connecting pipe, a valve body, a protective shell and a clamping block. The valve body and the connecting pipe are inserted into the interior of the protective shell. The protective shell and the U-shaped connecting frame can maintain the stability of the connecting pipe and the valve body, and can avoid gas or liquid leakage between the connecting pipe and the valve body, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall three-dimensional schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 A local enlarged schematic diagram of the structure at A in FIG.

[0025] Figure 3 It is a top view schematic diagram of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the cross section at AA in FIG.

[0027] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of the structure at B in FIG.

[0028] Figure 6 For the present invention Figure 4 A local enlarged schematic diagram of the structure at position C in FIG.

[0029] Figure 7 It is a three-dimensional schematic diagram of the protection device of the present invention.

[0030] In the figure: 1. Protective device; 11. Fixed base; 12. Limit connecting block; 13. Buffer assembly; 131. Protective shell; 132. U-shaped connecting frame; 133. Clamp one; 134. Fixed threaded rod; 135. Damper; 136. Buffer spring; 137. Connecting metal plate; 138. Clamp two; 2. Sealing device; 21. Connecting pipe; 22. Flange; 23. Sealing ring; 24. Limit threaded rod; 3. Valve; 31. Valve body; 32. Valve cover; 33. Connecting rod; 34. Turntable; 35. Valve core. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0032] See also Figure 1-7 , the present invention provides the following technical solutions:

[0033] A chemical valve with good sealing effect comprises a protection device 1 and a valve 3. The outward end of the valve 3 is threadedly connected with the sealing device 2, and the valve 3 is installed inside the protection device 1.

[0034] The protection device 1 comprises a fixed base 11 , a limiting connection block 12 and a buffer assembly 13 . The fixed base 11 is mounted on the bottom surface of the buffer assembly 13 , and the limiting connection block 12 is mounted on the upper end of the buffer assembly 13 .

[0035] The buffer assembly 13 includes a protective shell 131, a U-shaped connecting frame 132, a clamping block 133, a fixed threaded rod 134, a damper 135, a buffer spring 136, a connecting metal plate 137 and a clamping block 2 138. The connecting metal plate 137 is fixedly connected to the surface of the protective shell 131, the connecting metal plate 137 is installed on the upper end of the internal piston rod of the damper 135, the damper 135 is movably connected to the top surface of the fixed base 11, the buffer spring 136 is movably connected to the top surface of the fixed base 11, the damper 135 is located inside the clamping block 2 138, the damper 135 and the buffer spring 136 can push the protective shell 131 to perform buffering and shock absorption operations, and can protect the safety of the protective shell 131, the connecting metal plate 137 is connected to the top surface of the buffer spring 136, the clamping block 133 is plugged into the inner bottom surface of the protective shell 131, the fixed threaded rod 134 is connected to the fixed threaded rod 135, the connecting metal plate 137 is connected to the top surface of the buffer spring 136, the clamping block 133 is plugged into the inner bottom surface of the protective shell 131, and the fixed threaded rod 134 is connected to the fixed threaded rod 134. The rod 134 is fixedly connected to the top surface of the clamp block 133, and the clamp block 2 138 is threadedly connected to the top surface of the clamp block 133. The fixed threaded rod 134 is inserted into the inner wall surface of the clamp block 2 138. The clamp block 133 and the clamp block 2 138 are limited by the fixed threaded rod 134, and then the nut is rotated. The nut can lock and fix the clamp block 2 138 and the clamp block 1 133, which can effectively prevent the valve body 31 from detaching from the protective shell 131. The U-shaped connecting frame 132 is movably connected to the outward side surface of the protective shell 131, and the limiting connecting block 12 is threadedly connected to the top surface of the U-shaped connecting frame 132. The limiting connecting block 12 is threadedly connected to the top surface of the clamp block 2 138. The limiting connecting block 12 can threadably fix the clamp block 2 138 and the U-shaped connecting frame 132, which is convenient for disassembly and replacement of the U-shaped connecting frame 132 and the clamp block 2 138.

[0036] The sealing device 2 includes a connecting pipe 21, a flange 22, a sealing ring 23 and a limiting threaded rod 24. The flange 22 is fixedly connected to the outward end of the connecting pipe 21, and the connecting pipe 21 is installed on the outward end of the protective shell 131. The U-shaped connecting frame 132 is movably connected to the surface of the connecting pipe 21. The U-shaped connecting frame 132 is also on the outward side surface of the protective shell 131, so that the U-shaped connecting frame 132 and the connecting pipe 21 are movably connected, so that the connecting pipe 21 can be supported, thereby protecting the stability of the connecting pipe 21 and the safety of the connecting pipe 21. The limiting threaded rod 24 is fixedly connected to the outward side surface of the flange 22, and the sealing ring 23 is installed on the outward side surface of the flange 22.

[0037] The valve 3 includes a valve body 31, a valve cover 32, a connecting rod 33, a rotating disk 34 and a valve core 35. The valve cover 32 is threadedly connected to the upper end of the valve body 31, the sealing ring 23 is movably connected to the outward side surface of the valve body 31, the flange 22 is threadedly connected to the outward right end of the valve body 31, the connecting pipe 21 is inserted into the outward end of the valve body 31, and the connecting pipe 21 is inserted into the outward movement of the valve body 31, so that the sealing ring 23 and the flange 22 are threadedly connected to the outward side surface of the valve body 31, so that the connection between the valve body 31 and the connecting pipe 21 can be in a sealed state, and at the same time, the flange 22 can completely wrap the outward end of the valve body 31, so as to avoid gas or Liquid overflows, clamp block 133 is movably connected to the outward end of the valve body 31, clamp block 2 138 is movably connected to the outward end of the valve body 31, clamp block 2 138 and clamp block 1 133 can clamp and fix the valve body 31, which is convenient for disassembly and replacement of the valve body 31, connecting rod 33 is installed on the inner wall surface of the valve cover 32, connecting rod 33 is inserted into the inner wall surface of the valve core 35, the valve core 35 is installed on the inner wall surface of the valve body 31, connecting rod 33 is inserted in the middle position of the valve body 31, connecting rod 33 is inserted into the interior of the valve body 31, and the valve body 31 is inserted into the inner wall surface of the valve core 35, so that the position of the valve core 35 can be determined, which is convenient for disassembly and replacement of the valve core 35, and the turntable 34 is installed on the top surface of the connecting rod 33.

[0038] When in use, push the clamp block 133 downward so that the clamp block 133 is inserted into the interior of the protective shell 131, so that the clamp block 133 is located inside the protective shell 131, the positions of the two clamp blocks 133 can be determined, and then the nut is turned, the nut can threadably fix the clamp block 133 and the valve body 31, thereby determining the position of the clamp block 133.

[0039] The valve core 35 is pushed to be inserted into the interior of the valve body 31 , so that the valve core 35 can slide along the inner wall surface of the valve body 31 , so that the valve core 35 is located in the middle position of the valve body 31 .

[0040] Push the connecting rod 33 downward so that the connecting rod 33 is inserted into the middle position between the valve body 31 and the valve core 35 , and the position of the valve core 35 can be determined.

[0041] A valve cover 32 is threadedly connected to the middle top surface of the valve body 31. The valve cover 32 can slide along the surface of the connecting rod 33, so that the valve body 31 and the valve cover 32 are threadedly connected, thereby determining the position of the connecting rod 33 and sealing the valve body 31 to prevent the gas or liquid inside the valve body 31 from flowing out.

[0042] The valve body 31 is pushed to move downward, so that the valve body 31 and the inner wall surface of the clamping block 133 are movably connected, thereby determining the position of the valve body 31.

[0043] Push the clamp block 138 to move downward, and the clamp block 138 can slide vertically on the surface of the fixed threaded rod 134, so that the clamp block 133 and the clamp block 138 are movably connected. At the same time, the clamp block 138 and the outward end of the valve body 31 are movably connected. By turning the nut, the nut and the fixed threaded rod 134 can threadably fix the clamp block 138 and the clamp block 1 133, so that the position of the valve body 31 can be determined.

[0044] The connecting pipe 21 is pushed to be inserted into the outward end of the valve body 31 , and the connecting pipe 21 can drive the flange 22 , the sealing ring 23 and the limiting threaded rod 24 to move, so that the connecting pipe 21 is inserted into the outward end of the valve body 31 .

[0045] When the connecting pipe 21 is inserted into the outward end of the valve body 31, the connecting pipe 21 can push the sealing ring 23 and the outward surface of the valve body 31 to be movably connected, so that the sealing ring 23 is inserted into the outward end of the valve body 31, and then the nut is rotated. The nut can threadably fix the connecting pipe 21 and the valve body 31, so that the connecting pipe 21 and the valve body 31 can be in a sealing device.

[0046] The U-shaped connection frame 132 is pushed upward and can slide along the outward side surface of the protective shell 131 , so that the top surface of the U-shaped connection frame 132 and the top surface of the protective shell 131 are in the same horizontal plane.

[0047] The limiting connection block 12 is pushed downward, and the limiting connection block 12, the second clamping block 138 and the U-shaped connection frame 132 are threadedly fixed, so that the position of the U-shaped connection frame 132 can be determined. At the same time, the U-shaped connection frame 132 can maintain the stability of the connecting pipe 21 and protect the safety of the connecting pipe 21.

[0048] The damper 135 and the buffer spring 136 can threadably connect the fixed base 11 and the connecting metal plate 137 , thereby performing a buffering and shock-absorbing operation on the protective shell 131 , thereby protecting the safety of the connecting pipe 21 .

[0049] Clamp block 1 133, clamp block 2 138 and protective shell 131, clamp block 133 and clamp block 2 138 are installed inside the protective shell 131, so that clamp block 133 and damper 135 can be disassembled and replaced, so that valve bodies 31 of different specifications can be limited and fixed, which can protect valve bodies 31 of different specifications and increase the service life of the device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical valve with good sealing effect, comprising a protective device (1) and a valve (3), characterized in that: The outward end of the valve (3) is threadedly connected to a sealing device (2), and the valve (3) is installed inside the protective device (1); The protection device (1) comprises a fixed base (11), a limiting connection block (12) and a buffer assembly (13), wherein the fixed base (11) is mounted on the bottom surface of the buffer assembly (13), and the limiting connection block (12) is mounted on the upper end of the buffer assembly (13); The buffer assembly (13) comprises a protective shell (131), a U-shaped connecting frame (132), a clamping block 1 (133), a fixed threaded rod (134), a damper (135), a buffer spring (136), a connecting metal plate (137) and a clamping block 2 (138), wherein the connecting metal plate (137) is fixedly connected to the surface of the protective shell (131), the connecting metal plate (137) is installed on the upper end of the internal piston rod of the damper (135), the connecting metal plate (137) is connected to the top surface of the buffer spring (136), the clamping block 1 (133) is plugged into the inner bottom surface of the protective shell (131), the fixed threaded rod (134) is fixedly connected to the top surface of the clamping block 1 (133), the clamping block 2 (138) is threadedly connected to the top surface of the clamping block 1 (133), and the U-shaped connecting frame (132) is movably connected to the outward side surface of the protective shell (131); The sealing device (2) comprises a connecting pipe (21), a flange (22), a sealing ring (23) and a limiting threaded rod (24), wherein the flange (22) is fixedly connected to an outward end of the connecting pipe (21), the limiting threaded rod (24) is fixedly connected to an outward surface of the flange (22), and the sealing ring (23) is installed on an outward surface of the flange (22); The valve (3) comprises a valve body (31), a valve cover (32), a connecting rod (33), a rotating disk (34) and a valve core (35); the valve cover (32) is threadedly connected to the upper end of the valve body (31); the connecting rod (33) is mounted on the inner wall surface of the valve cover (32); the connecting rod (33) is plugged into the inner wall surface of the valve core (35); and the rotating disk (34) is mounted on the top end surface of the connecting rod (33).

2. A chemical valve with good sealing effect according to claim 1, characterized in that: The valve core (35) is mounted on the inner wall surface of the valve body (31), and the connecting rod (33) is inserted into the middle position of the valve body (31).

3. A chemical valve with good sealing effect according to claim 2, characterized in that: The first clamping block (133) is movably connected to the outward end of the valve body (31), and the second clamping block (138) is movably connected to the outward end of the valve body (31).

4. A chemical valve with good sealing effect according to claim 3, characterized in that: The sealing ring (23) is movably connected to the outward side surface of the valve body (31), the flange (22) is threadedly connected to the outward right end of the valve body (31), and the connecting pipe (21) is plugged into the outward end of the valve body (31).

5. A chemical valve with good sealing effect according to claim 4, characterized in that: The fixed threaded rod (134) is inserted into the inner wall surface of the second clamping block (138).

6. A chemical valve with good sealing effect according to claim 5, characterized in that: The damper (135) is movably connected to the top surface of the fixed base (11), the buffer spring (136) is movably connected to the top surface of the fixed base (11), and the damper (135) is located inside the second clamping block (138).

7. A chemical valve with good sealing effect according to claim 6, characterized in that: The limiting connection block (12) is threadedly connected to the top surface of the U-shaped connection frame (132), and the limiting connection block (12) is threadedly connected to the top surface of the second clamping block (138).

8. A chemical valve with good sealing effect according to claim 7, characterized in that: The connecting pipe (21) is installed at an outward end of the protective shell (131), and the U-shaped connecting frame (132) is movably connected to the surface of the connecting pipe (21).

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