A double-tongue split-acting folding regulating valve

Abstract

The present invention relates to a double-tongue split-acting folding regulating valve, comprising a valve body, a pair of valve flaps arranged in the valve body, and at least one group of power components for driving the valve flaps to fold and open; the valve body is a cavity structure, with a flow channel arranged in the middle, and the two ends of the flow channel are respectively arranged as an inlet end and an outlet end; the valve flap is provided with an obliquely arranged particle screening net at the inlet end; the present invention adopts a double-tongue valve flap structure, and controls the folding and opening of the two valve flaps respectively through two groups of power components, so as to realize the separate opening and closing of a single flow channel or a double flow channel in the valve body, thereby realizing the control of the flow rate of the flowing medium in the valve body; by arranging an obliquely arranged particle screening net on the outer side of the valve flap near the feed inlet, the particle size of the flowing medium passing through the valve flap can be controlled.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a double-tongue split-acting folding regulating valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Among them, the pipe clamp valve is a type of regulating valve.

[0003] The pipe clamp valve adjusts the flow rate by squeezing or loosening the hose to adjust the flow area. The medium passes through the hose, and other parts of the valve body do not contact the medium. However, its caliber is mostly small and medium-sized. The opening and closing mechanism usually uses a single-screw type, and the valve body height is very high. The height of the double-screw type valve can be reduced, but they cannot get rid of the high cost problem caused by the excessive length of the hose (to prevent the rubber tube from stretching when closed). Large-diameter pipe clamp valves with a diameter greater than DN300 often use a lampshade design to prevent the hose from stretching when closed. The volume is large and the cost is higher. In addition, there are certain problems in the maintenance and use of pipe clamp valves. For example, if different rubber tube sleeve manufacturers are used, its service life is difficult to guarantee. High pressure resistance and temperature resistance are weak points. Insufficient rubber technology makes it difficult to produce rubber tube sleeves with high wear resistance, high corrosion resistance and high life.

[0004] Therefore, how to provide a double-tongue split-action folding regulating valve to solve the problems existing in the prior art is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a double-tongue split folding regulating valve, which has the function of dynamic flow range regulation and has the characteristics of high pressure resistance, wear resistance and good corrosion resistance.

[0006] In order to achieve the above objectives, this application provides the following technical solutions.

[0007] A double-tongue split-action folding regulating valve comprises a valve body, a pair of valve flaps arranged in the valve body, and at least one group of power components for driving the valve flaps to fold and open;

[0008] The valve body is a cavity structure with a flow passage in the middle, and the two ends of the flow passage are respectively arranged as an inlet end and an outlet end.

[0009] Preferably, the power assembly includes a first power assembly and a second power assembly, the valve flap includes a first valve flap and a second valve flap, and the first power assembly and the second power assembly correspond to the first valve flap and the second valve flap, respectively.

[0010] Preferably, the first power assembly and the second power assembly are arranged on the same side or on two symmetrical sides of the valve body.

[0011] Preferably, a positioning locking disk and a support bearing are provided on one side of the valve body, and the positioning locking disk is fixed to the valve body through the support bearing.

[0012] Preferably, the first power assembly comprises an inner core shaft and a first control rod, and the second power assembly comprises an outer ring shaft and a second control rod; the inner core shaft is arranged in the outer ring shaft;

[0013] The first operating rod and the second operating rod are respectively fixed on the positioning locking disk.

[0014] Preferably, the first valve flap and the second valve flap are respectively fixed to the inner core shaft and the outer ring tube shaft by fastening screws.

[0015] Preferably, an outer sleeve is arranged on the outside of the outer ring shaft, and the inner core shaft, the outer ring shaft and the outer sleeve are sealed and fixed to each other via a sealing ring or a sealing gasket.

[0016] Preferably, the outer sleeve is provided with a protective cover at the inlet end, which is in direct contact with the flowing medium and is used to protect the inner core shaft and the outer ring tube shaft.

[0017] Preferably, a limiting step is provided in the front of the valve body relative to the installation direction for facilitating disassembly, assembly, maintenance and inspection.

[0018] Preferably, the valve flap is provided with an obliquely arranged particle screening net at the inlet end, and the particle screening net is used to control the particle size of the medium particles.

[0019] Beneficial technical effects obtained by the present invention:

[0020] 1) The present invention solves the problems existing in the conventional pipe clamp valve that adjusts the flow rate by squeezing or loosening the rubber tube, such as the difficulty in guaranteeing the service life, poor high pressure resistance and temperature resistance, and insufficient rubber technology to produce a rubber tube sleeve with high wear resistance, high corrosion resistance and long service life; the present invention improves the structure to realize the dynamic adjustment function of the flow range, and at the same time, has the advantages of good high pressure resistance, wear resistance and corrosion resistance;

[0021] 2) The present invention adopts a double-tongue valve disc structure, and controls the folding and opening of the two valve discs through two sets of power components, so as to realize the separate opening and closing of a single flow channel or a double flow channel in the valve body, thereby realizing the control of the flow rate of the flowing medium in the valve body;

[0022] 3) In the present invention, by providing an obliquely arranged particle screening net on the outer side of the valve disc near the feed inlet, the particle size of the flow medium passing through the valve disc can be controlled;

[0023] 4) In the present invention, when the power assembly is manual, its position is fixed by positioning the locking plate and the nut to ensure that the valve disc can still be stably opened and closed and fixed in the set position when the internal pressure of the valve body is relatively high.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0025] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 1 is a front view of a double-tongue split-action folding regulating valve in an embodiment of the present disclosure;

[0028] Figure 2 It is a partial cross-sectional view of a front view of a double-tongue split-action folding regulating valve in an embodiment of the present disclosure;

[0029] Figure 3 It is a top partial cross-sectional view of a double-tongue split-action folding regulating valve in an embodiment of the present disclosure;

[0030] Figure 4 It is a partial cross-sectional side view of a double-tongue split folding regulating valve in an embodiment of the present disclosure when folded;

[0031] Figure 5 is a top partial cross-sectional view of a double-tongue split-action folding regulating valve in another embodiment of the present disclosure;

[0032] Figure 6 It is a side partial cross-sectional view of a double-tongue split-action folding regulating valve in another embodiment of the present disclosure.

[0033] In the above drawings: 10, valve body; 101, inlet end; 102, outlet end; 20, valve flap; 201, first valve flap; 202, second valve flap; 300, first power assembly; 301, inner core shaft; 302, first control rod; 400, second power assembly; 401, outer ring shaft; 402, second control rod; 50, positioning locking disk; 60, support bearing; 70, fastening screw; 80, outer sleeve; 90, protective cover; 100, particle screening net; 110, bearing seat; 120, sealing gasket; 130, sealing cover. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0035] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0038] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0039] It should also 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", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0040] Example 1

[0041] As attached Figure 1 As shown, a double-tongue split-acting folding regulating valve includes a valve body 10, a pair of valve flaps 20 arranged in the valve body 10, and at least one group of power components for driving the valve flaps 20 to fold and open.

[0042] The valve body 10 is a cavity structure with a flow passage in the middle. The two ends of the flow passage are respectively arranged as an inlet end 101 and an outlet end 102 .

[0043] Furthermore, the valve body 10 and its internal components can be manufactured using a precision casting process to ensure the uniformity of the material of the valve body 10 , so that the valve body 10 will not experience uneven deformation due to pressure and temperature under high pressure and over-temperature conditions.

[0044] Alternatively, the valve body 10 and its internal components may be welded or injection molded with engineering plastics.

[0045] As attached Figure 2 As shown, the valve flap 20 includes a first valve flap 201 and a second valve flap 202 , and the first valve flap 201 and the second valve flap 202 are respectively arranged on both sides of the valve body 10 .

[0046] Furthermore, the inner cavity of the valve seat is lined with rubber to prevent fluid from leaking from the gap between the inner cavity of the valve body 10 and the outer periphery of the first valve flap 201 and the second valve flap 202 .

[0047] Furthermore, one of the valve flaps is provided with an obliquely arranged particle screening net 100 at the inlet end 101, and the particle screening net 100 is used to control the particle size of the medium particles.

[0048] Furthermore, a pair of valve flaps 20 are provided with an obliquely arranged particle screening net 100 at the inlet end 101, and the particle screening net 100 is used to control the particle size of the medium particles.

[0049] As attached Figure 3As shown, the power assembly includes a first power assembly 300 and a second power assembly 400 , and the first power assembly 300 and the second power assembly 400 are arranged on the same side of the valve body 10 .

[0050] The first power assembly 300 and the second power assembly 400 correspond to the first valve flap 201 and the second valve flap 202 respectively. The first valve flap 201 and the second valve flap 202 are folded and opened and folded and closed respectively under the action of the first power assembly 300 and the second power assembly 400, thereby realizing the opening and closing of the flow channel. The first valve flap 201 and the second valve flap 202 can be folded separately to realize the opening of one side of the flow channel and control the flow rate of the flow medium in the flow channel.

[0051] See attached Figure 3 A positioning locking disk 50 and a supporting bearing 60 are provided on one side of the valve body 10 , and the positioning locking disk 50 is fixed on the valve body 10 through the supporting bearing 60 .

[0052] The first power assembly 300 includes an inner core shaft 301 and a first operating rod 302 , and the second power assembly 400 includes an outer ring shaft 401 and a second operating rod 402 ; the inner core shaft 301 is disposed inside the outer ring shaft 401 .

[0053] As attached Figure 4 As shown, the first valve flap 201 and the second valve flap 202 are respectively fixed to the inner core shaft 301 and the outer ring tube shaft 401 by fastening screws 70 .

[0054] The first operating rod 302 and the second operating rod 402 are respectively fixed to the positioning locking plate 50 by bolts and nuts to ensure that the first valve flap 201 and the second valve flap 202 can still be stably opened and closed and fixed at the set position when the internal pressure of the valve body 10 is relatively high.

[0055] Furthermore, the positioning locking disk 50 is provided with two slides corresponding to the first operating rod 302 and the second operating rod 402 respectively, so as to realize the rotation of the first operating rod 302 and the second operating rod 402, thereby driving the flipping of the first valve flap 201 and the second valve flap 202.

[0056] An outer sleeve 80 is disposed outside the outer ring shaft 401 , and the inner core shaft 301 , the outer ring shaft 401 , and the outer sleeve 80 are sealed and fixed to each other via a sealing ring or a sealing gasket 120 .

[0057] Furthermore, the inner core shaft 301, the outer ring tube shaft 401, and the outer sleeve 80 located at the end away from the positioning locking disk 50 are fixed to the valve body 10 through a bearing seat 110. A sealing gasket 120 is provided on one side of the bearing seat 110, and a sealing pressure cover 130 is provided on the outer side of the sealing gasket 120 to prevent overflow of the flowing medium.

[0058] Furthermore, the inner core shaft 301, the outer ring tube shaft 401, and the outer sleeve 80 located at one end close to the positioning locking disk 50 are fixed to the valve body 10 through a support bearing 60, and O-rings are arranged between the inner core shaft 301, the outer ring tube shaft 401, and the outer sleeve 80 to prevent overflow of the flowing medium.

[0059] Furthermore, the outer sleeve 80 is provided with a protective cover 90 at the inlet end 101, which is in direct contact with the flowing medium and is used to protect the inner core shaft 301 and the outer ring tube shaft 401 to extend the service life.

[0060] Furthermore, the contact surface between the valve disc 20 and the protective cover 90 is lined with rubber to improve the sealing reliability of the double-tongue split regulating valve.

[0061] A limiting step is provided in the valve body 10 in front of the installation direction of the valve disc 20 to facilitate disassembly, assembly, maintenance and inspection.

[0062] Furthermore, the valve body 10 is sealed with the first valve flap 201 and the second valve flap 202 and can be processed separately to ensure the roughness and flatness and the sealing performance.

[0063] In one embodiment, as shown in the attached Figure 5 and 6 As shown, the first power assembly 300 and the second power assembly 400 are respectively arranged on two symmetrical sides of the valve body 10 .

[0064] The braking modes of the first power assembly 300 and the second power assembly 400 include manual, electric, pneumatic and hydraulic.

[0065] The working principle of the above-mentioned double-tongue split folding regulating valve is that the first power component 300 and the second power component 400 respectively drive the first valve flap 201 and the second valve flap 202 to rotate, thereby realizing the opening and closing of the flow channel in the valve body 10; the first valve flap 201 and the second valve flap 202 can rotate individually or synchronously, thereby realizing the control of different flow rates; the power component is suitable for various braking modes such as manual, electric, pneumatic and hydraulic.

[0066] The above-mentioned double-tongue split folding regulating valve adopts a double-tongue valve disc structure, and the folding and opening and closing of the two valve discs are controlled by two sets of power components respectively, so as to realize the separate opening and closing of the single flow channel or the double flow channel in the valve body 10, thereby realizing the control of the flow rate of the flowing medium in the valve body 10; by arranging an obliquely arranged particle screening net 100 on the outer side of the valve disc near the feed port, the particle size of the flowing medium passing through the valve disc can be controlled; when the power component is manual, its position is fixed by positioning the locking disk 50 and the nut to ensure that the valve disc can still be stably opened and closed when the internal pressure of the valve body 10 is relatively high, and is fixed in the set position.

[0067] The above-mentioned double-tongue split folding regulating valve solves the problems existing in the traditional pipe clamp valve that adjusts the flow by squeezing or loosening the rubber tube, such as the difficulty in ensuring the service life, poor high pressure resistance and temperature resistance, and insufficient rubber technology to produce highly wear-resistant, highly corrosion-resistant and long-life rubber tube sleeves; the present invention improves the structure to achieve the function of dynamic flow range adjustment, and at the same time, has the advantages of good high pressure resistance, wear resistance and corrosion resistance.

[0068] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A double-tongue split folding regulating valve, characterized in that: It comprises a valve body (10), a pair of valve flaps (20) arranged in the valve body (10), and at least one group of power components for driving the valve flaps (20) to fold and open; The valve body (10) is a cavity structure, with a flow passage provided in the middle, and the two ends of the flow passage are respectively provided as an inlet end (101) and an outlet end (102); The power assembly comprises a first power assembly (300) and a second power assembly (400); the valve flap (20) comprises a first valve flap (201) and a second valve flap (202); The first power assembly (300) and the second power assembly (400) correspond to the first valve flap (201) and the second valve flap (202), respectively; The first power assembly (300) comprises an inner core shaft (301) and a first control rod (302), and the second power assembly (400) comprises an outer ring shaft (401) and a second control rod (402); the inner core shaft (301) is arranged inside the outer ring shaft (401); A positioning locking disc (50) and a support bearing (60) are provided on one side of the valve body (10), and the positioning locking disc (50) is fixed to the valve body (10) via the support bearing (60); The first operating rod (302) and the second operating rod (402) are respectively fixed on the positioning locking disk (50); The positioning locking disk (50) is provided with two sliding rails corresponding to the first operating rod (302) and the second operating rod (402) respectively; The first valve flap (201) and the second valve flap (202) are respectively fixed to the inner core shaft (301) and the outer ring tube shaft (401) by means of fastening screws (70); An outer sleeve (80) is arranged outside the outer ring shaft (401), and the inner core shaft (301), the outer ring shaft (401), and the outer sleeve (80) are sealed and fixed to each other via a sealing ring or a sealing gasket (120).

2. The double-tongue split-action folding regulating valve according to claim 1, characterized in that: The first power assembly (300) and the second power assembly (400) are arranged on the same side or on two symmetrical sides of the valve body (10).

3. The double-tongue split-action folding regulating valve according to claim 1, characterized in that: The outer sleeve (80) is provided with a protective cover (90) at the inlet end (101), which is in direct contact with the flowing medium and is used to protect the inner core shaft (301) and the outer ring tube shaft (401).

4. The double-tongue split-action folding regulating valve according to claim 1, characterized in that: A limiting step is provided in the valve body (10) at the front relative to the installation direction for facilitating disassembly, assembly, maintenance and inspection.

5. The double-tongue split-action folding regulating valve according to claim 1, characterized in that: The valve flap (20) is provided with an obliquely arranged particle screening net (100) at the inlet end (101), and the particle screening net (100) is used to control the particle size of medium particles.

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