CN110319231B - Pipe clamp valve - Google Patents

Pipe clamp valve Download PDF

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Publication number
CN110319231B
CN110319231B CN201910479044.XA CN201910479044A CN110319231B CN 110319231 B CN110319231 B CN 110319231B CN 201910479044 A CN201910479044 A CN 201910479044A CN 110319231 B CN110319231 B CN 110319231B
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China
Prior art keywords
rubber tube
valve
valve body
rubber
central
Prior art date
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Active
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CN201910479044.XA
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Chinese (zh)
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CN110319231A (en
Inventor
张志�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fushun Yuandong Rubber Co ltd
Original Assignee
Fushun Yuandong Rubber Co ltd
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Priority to CN201910479044.XA priority Critical patent/CN110319231B/en
Publication of CN110319231A publication Critical patent/CN110319231A/en
Application granted granted Critical
Publication of CN110319231B publication Critical patent/CN110319231B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0236—Diaphragm cut-off apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure
    • F16K7/075—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure a rigid body being located within the tubular diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Check Valves (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention discloses a pipe clamp valve which comprises a valve body, wherein a rubber pipe is internally pressed in the valve body, lateral reinforcing bodies and a central reinforcing body are respectively arranged at two ends and inside the center of the rubber pipe, two elastic stretching areas are formed between the central reinforcing body and the lateral reinforcing bodies, a chloroprene rubber layer is crosslinked on the inner side wall of the rubber pipe, and an ethylene propylene diene monomer layer is crosslinked on the inner side wall of the chloroprene rubber layer. This pipe clamp valve, when the pressure of intraductal class of liquid is greater than the pressure in the pressure chamber and leads to first closed port department to appear the seepage, the closed flow that stops the residual liquid of second closed port realizes perfect closed effect, is convenient for close and improves the airtight effect after the closure, the durability of wholeness reinforcing rubber tube.

Description

Pipe clamp valve
Technical Field
The invention relates to the technical field of valves, in particular to a pipe clamp valve.
Background
In various fluid conveying systems in the industries of metallurgy, chemical engineering, cement, ceramics, glass, plastics, wastewater treatment, pharmacy, food and beverage, wine brewing, railway, aviation, machinery and the like, media such as liquid-solid mixtures, wire harnesses, powder and the like are often required to be conveyed through pipelines, such as weighing systems, powder spraying, vacuum toilets, cable processing, suction and compressed air control systems and the like.
The conveying material comprises a medium such as liquid containing fibers, petroleum, ore pulp, cement, powder, slurry, cable harness, sewer sludge and the like. If the conventional gate type valve is used in the above-mentioned field, when the gate is closed, the gate cannot be completely closed due to the support of the solid in the medium, so that the fluid in the medium can still pass through, and the function of closing the valve cannot be achieved.
The inner bushing of the pinch valve is a part of the conveying pipeline and is made of elastic material with certain strength. The compressed medium is applied to the air chamber outside the inner lining, so that the compressed medium is extruded and deformed to close the pipeline, and the pipeline can be completely blocked by the conveyed medium.
In the prior art, for example, in the utility model with application number 201420733232.3, an inner bushing is arranged to enable two ends to achieve a sealing function after being extruded and deformed, but when the pressure of a liquid flowing end is higher than the pressure in a pressure cavity after being blocked, a gap is formed on a binding surface, and further leakage is caused;
for example, in the utility model with application number 201620729348.9, the double-compression rubber tube is arranged to improve the sealing effect, but the rubber tube connection is easy to have gaps and even breaks, and the service life is short;
for example, the utility model patent No. 201320024140.3 increases the flexural fatigue strength of the pipe surface, but the cold resistance, corrosion resistance, water resistance and mechanical strength of the hose are low, and the actual use requirements cannot be satisfied.
Disclosure of Invention
The present invention is directed to a pinch valve that solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a pipe clamp valve comprises a valve body, wherein a rubber pipe is pressed in the valve body, a pressure cavity is formed between the valve body and the rubber pipe, two end openings of the valve body are fixedly connected with end covers, and an injection pipe opening is formed in the valve body;
lateral reinforcing bodies and central reinforcing bodies are respectively arranged at the two ends and in the center of the rubber tube, and two elastic stretching areas are formed between the central reinforcing bodies and the lateral reinforcing bodies;
the rubber tube is characterized in that a chloroprene rubber layer is crosslinked on the inner side wall of the rubber tube, and an ethylene-propylene-diene monomer layer is crosslinked on the inner side wall of the chloroprene rubber layer.
Preferably, the both ends in pressure chamber all are equipped with the elastic sealing body, the elastic sealing body joint is on the valve body, and the upper and lower face is contradicted respectively in the outer wall of valve body inner wall and rubber tube.
Preferably, the contact surface of the elastic sealing body and the rubber tube is of a tooth structure.
Preferably, the rubber tube is of a cylindrical structure, lateral reinforcing bodies at two ends of the rubber tube are outwards flared, an extending part is arranged on the inner side of a central opening of the end cover, and the lateral reinforcing bodies are attached to the extending part.
Preferably, the central reinforcing body is annular and is embedded in the rubber tube, and the inner diameter of the central reinforcing body is the same as that of the rubber tube.
Preferably, the injection pipe orifice is arranged at the central part of the valve body.
Compared with the prior art, the invention has the beneficial effects that:
the first closed port bears the impact strength of the flowing direction of liquid, and when the pressure of liquid flowing in the pipe is greater than the pressure in the pressure cavity to cause leakage at the first closed port, the second closed port is closed to stop the flow of residual liquid, so that perfect closing effect is realized.
Two, this pipe clamp valve, when the medium is full of the deformation of pressfitting elastic stretching district behind the pressure chamber, punching press the elastic seal simultaneously, the elastic seal pressurized deformation closely pressfitting rubber tube both ends part, can be when pressing intracavity maximum pressure the elastic seal at utmost pressfitting rubber tube, the reinforcing is to the fixed effect of rubber tube, prevent that it from taking place the displacement, the stationary plane of horn mouth shape and extension design increase rubber tube both ends mouth, and its shape of pressing close to mouth of pipe department can not overstretching after two elastic stretching districts are closed, be convenient for closed and improve the airtight effect after the closure.
Third, this tube clamp valve, the cold-resistant, corrosion-resistant and water-blocking nature in the chloroprene rubber reinforcing rubber pipe, the mechanical properties of EPDM rubber reinforcing rubber pipe, the durability of wholeness reinforcing rubber pipe satisfies the in-service use demand.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the rubber tube of the present invention;
fig. 3 is a schematic structural diagram of the closed state of the present invention.
In the figure: 1. the sealing structure comprises an end cover, 2, a valve body, 3, a pressure cavity, 4, a rubber tube, 5, an injection tube opening, 6, a central reinforcing body, 7, a lateral reinforcing body, 8, an elastic sealing body, 9, an extending part, 10, a chloroprene rubber layer, 11, an ethylene propylene diene monomer layer, 12 and an elastic stretching area.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a pipe clamp valve comprises a valve body 2, a rubber pipe 4 is pressed in the valve body 2, a pressure cavity 3 is formed between the valve body 2 and the rubber pipe 4, end covers 1 are fixedly connected with two ports of the valve body 2, an injection pipe port 5 is arranged on the valve body 2, a medium is injected into the pressure cavity 3 through the injection pipe port 5, and the rubber pipe 4 is extruded to deform after the pressure cavity is filled;
lateral reinforcing bodies 7 and central reinforcing bodies 6 are respectively arranged at the two ends and inside the center of the rubber tube 4, two elastic stretching areas 12 are formed between the central reinforcing body 6 and the lateral reinforcing bodies 7, the two elastic stretching areas 12 are formed by the central reinforcing body 6, so that the two elastic stretching areas 12 are deformed and closed when deformed, the double closed ports form a complete closed effect, the first closed port bears the impact strength of the liquid flow direction, and when the pressure of the liquid flowing in the tube is greater than the pressure in the pressure cavity 3, so that the leakage occurs at the first closed port, the second closed port is closed to stop the flow of residual liquid, thereby realizing a perfect closed effect;
a chloroprene rubber layer 10 is crosslinked on the inner side wall of the rubber tube 4, cold resistance, corrosion resistance and water resistance in the rubber tube 4 are enhanced by adopting chloroprene rubber, an ethylene propylene diene monomer layer 11 is crosslinked on the inner side wall of the chloroprene rubber layer 10, and the mechanical property of the rubber tube is enhanced by adopting ethylene propylene diene monomer, so that the durability of the rubber tube 4 is enhanced integrally;
the two ends of the pressure cavity 3 are respectively provided with an elastic sealing body 8, the elastic sealing bodies 8 are clamped on the valve body 2, the upper surface and the lower surface of each elastic sealing body respectively abut against the inner wall of the valve body 2 and the outer wall of the rubber tube 4, the elastic sealing bodies 8 are simultaneously stamped after the pressure cavity 3 is filled with a medium and when the pressing elastic stretching area 12 deforms, the elastic sealing bodies 8 are pressed and deformed to tightly press the two end parts of the rubber tube 4, the rubber tube 4 can be pressed to the maximum extent by the elastic sealing bodies 8 when the pressure in the pressure cavity 3 is the maximum, the fixing effect on the rubber tube 4 is enhanced, and the displacement of the rubber tube 4;
the contact surface of the elastic sealing body 8 and the rubber tube 4 is of a tooth structure, and the tightness and the dislocation resistance of the contact surface of the elastic sealing body and the rubber tube are enhanced by designing the tooth structure;
the rubber tube 4 is of a cylindrical structure, the lateral reinforcing bodies 7 at two ends of the rubber tube are outwards flared, the extension part 9 is arranged on the inner side of the central opening part of the end cover 1, the lateral reinforcing bodies 7 are attached to the extension part 9, the fixing surfaces of two ports of the rubber tube 4 are enlarged by adopting the design, and the shape of the two elastic stretching regions 12 close to the tube port cannot be excessively stretched after being closed, so that the rubber tube is closed and the sealing effect after being closed is improved;
the central reinforcing body 6 is annular and is embedded in the rubber tube 4, and the inner diameter of the central reinforcing body 6 is the same as that of the rubber tube 4;
the injection pipe orifice 5 is provided at the center of the valve body 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pipe clamp valve, includes valve body (2), inherent rubber tube (4) of pressure in valve body (2), form between valve body (2) and rubber tube (4) and press chamber (3), the both ends mouth rigid coupling of valve body (2) has end cover (1), be equipped with injection pipe mouth (5), its characterized in that on valve body (2):
lateral reinforcing bodies (7) and a central reinforcing body (6) are respectively arranged at the two ends and the inner part of the center of the rubber tube (4), and two elastic stretching areas (12) are formed between the central reinforcing body (6) and the lateral reinforcing bodies (7);
the rubber tube (4) inside wall cross-linked has chloroprene rubber layer (10), the inside wall cross-linked of chloroprene rubber layer (10) has ethylene propylene diene monomer glue film (11).
2. A pinch valve as claimed in claim 1, wherein: the two ends of the pressure cavity (3) are respectively provided with an elastic sealing body (8), the elastic sealing bodies (8) are connected to the valve body (2) in a clamped mode, and the upper face and the lower face of each elastic sealing body are respectively abutted to the inner wall of the valve body (2) and the outer wall of the rubber pipe (4).
3. A pinch valve as claimed in claim 2, wherein: the contact surface of the elastic sealing body (8) and the rubber tube (4) is of a tooth structure.
4. A pinch valve as claimed in claim 1, wherein: the rubber tube (4) is of a cylindrical structure, the lateral reinforcing bodies (7) at two ends of the rubber tube are outwards flared, an extending part (9) is arranged on the inner side of a central opening of the end cover (1), and the lateral reinforcing bodies (7) are attached to the extending part (9).
5. A pinch valve as claimed in claim 1, wherein: the central reinforcing body (6) is annular and is embedded in the rubber tube (4), and the inner diameter of the central reinforcing body (6) is the same as that of the rubber tube (4).
6. A pinch valve as claimed in claim 1, wherein: the injection pipe orifice (5) is arranged at the central part of the valve body (2).
CN201910479044.XA 2019-06-03 2019-06-03 Pipe clamp valve Active CN110319231B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910479044.XA CN110319231B (en) 2019-06-03 2019-06-03 Pipe clamp valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910479044.XA CN110319231B (en) 2019-06-03 2019-06-03 Pipe clamp valve

Publications (2)

Publication Number Publication Date
CN110319231A CN110319231A (en) 2019-10-11
CN110319231B true CN110319231B (en) 2021-07-02

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ID=68119424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910479044.XA Active CN110319231B (en) 2019-06-03 2019-06-03 Pipe clamp valve

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111364418A (en) * 2020-03-19 2020-07-03 武汉圣禹排水系统有限公司 Flexible cut-off equipment with keep off portion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412554A (en) * 1981-07-29 1983-11-01 Grove Valve And Regulator Company Fire safe expansible tube type valve
FR2557248A1 (en) * 1983-12-22 1985-06-28 Aspiramatic Sarl Improvements to valves with flexible shutoff sleeve.
FR2693784B1 (en) * 1992-07-16 1994-10-07 Pierre Constantin Elastic deformation valve.
CN204477374U (en) * 2014-12-01 2015-07-15 上海朗阀机械有限公司 Pneumatic clamps pipe valve
CN204477375U (en) * 2015-03-20 2015-07-15 海安阀门厂有限公司 A kind of pneumatic clamps pipe valve

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