Multi-purpose valve and valve plate and its application

Abstract

A multi-purpose valve and its valve plate and application, wherein the valve plate includes an elastic sheet structure that is concave inward; the valve includes a cylinder composed of three valve plates of the same structure, the concave part of each valve plate is in close contact with the concave parts of the other two valve plates, thereby achieving sealing inside the cylinder, and the outer edge of the valve plate is embedded in the bracket to form a cylinder supported by the bracket, which is installed in the inner tube, and one end is plugged with an inlaid cover to form a negative pressure valve core; the inner tube is installed with a sealing ring and pressed into a valve shell with a duct seat on the side; the valve and valve plate can be used in sewage valves. The present invention can directly replace the existing negative pressure valve, partially directly replace the pipe clamp valve, and can also replace the slide valve and butterfly valve for the newly built feces collection system. It is a truly multi-purpose valve. The present invention has a simple structure, small size, light weight, and reliable performance. It can greatly reduce the maintenance workload, reduce the application cost, and can be quickly replaced, which can effectively reduce the cost of the high-speed rail feces collection system.

Description

Technical Field

[0001] The invention relates to a multi-purpose valve and a valve sheet and application thereof, and is particularly used for a sewage channel of a feces collection system of passenger transport equipment, belonging to the technical field of valves. Background Art

[0002] Multi-purpose valves, especially multi-purpose sewage valves, are designed to solve the problem of barrier-free access and control of sewage channels in toilet collection systems of passenger transport equipment. All valves used for sewage channels of toilet collection systems in the world today, such as slide valves, butterfly valves, pipe clamp valves and negative pressure valves, have various deficiencies or defects, such as complex structure, high failure rate, short life, abnormal noise or large size, inconvenient maintenance, etc. During the operation of high-speed railways, the use of vehicles was affected for several hours due to the replacement of a pipe clamp valve.

[0003] The so-called slide valve and butterfly valve are collectively called gate valves. They use a cylinder to push the gate to open and close the sewage channel. They are a kind of rigid structure. Plastic bags or fabrics are often stuffed into the narrow gap of the gate movement, affecting its use.

[0004] The structure of the pipe clamp valve is classic, but its service life is limited due to the uneven local force on the working state of the hose; and its traditional installation method makes it extremely difficult to repair and replace.

[0005] The negative pressure valve is extremely large due to its unreasonable structure, and its installation needs to be specially considered when designing the feces collection system. In addition, like the pipe clamp valve, it also has the problem of uneven local force in the working state of the hose, which affects its service life.

[0006] The sewage channel of the feces collection system requires a large diameter, no obstacles, and controlled opening and closing, etc. Traditional valves are difficult to fully meet the requirements; therefore, it is necessary to provide a multi-purpose sewage valve with a simple structure, stable performance, good sealing, and high reliability, so as to reduce the failure rate of the sewage valve and reduce the manufacturing and application costs. Summary of the invention

[0007] The object of the present invention is to provide a multi-purpose valve and a valve plate and application thereof, so as to overcome the deficiencies of the prior art.

[0008] The technical concept of the present invention is to embed three valve plates with a cross-section shaped like a "capsule" on the inner wall of the sewage channel, each valve plate occupies 1 / 3 of the cross-section of the sewage channel, and realize the functions of "negative pressure valve", "negative pressure check valve", "positive pressure check valve" and "pressure maintaining valve" by controlling the retraction and extension of the valve plates through positive and negative pressure or natural retraction and extension.

[0009] The multi-purpose valve plate is characterized in that it includes an elastic sheet structure that is concave inwardly. Three valve plates with the same structure are combined into a cylinder. The concave part of each valve plate is tightly attached to the concave parts of the other two valve plates, thereby achieving sealing inside the cylinder so that the cylinder presents a normally closed state with both ends not communicating.

[0010] The valve plate is characterized in that a circle of sealing ribs is provided on the edge of the valve plate. When the three valve plates are combined into a cylinder, the sealing ribs of the three valve plates are all in the same cylindrical surface; the middle part of the valve plate is composed of two closely fitting plates which are connected to each other and form an angle of 120°, and the inner angles of the two closely fitting plates are rounded; located on the upper and lower sides of the two closely fitting plates are two semi-conical transition surfaces, which extend from the upper and lower sides of the two closely fitting plates to the sealing ribs respectively.

[0011] A one-way valve plate is characterized in that the valve plate is formed by cutting off 1 / 2 of the multi-purpose valve plate from the middle along the radial direction.

[0012] A negative pressure valve, characterized in that it comprises three valve plates with the same structure and their respective brackets, the outer side edge of the valve plate is embedded in the bracket to form a structural unit, the inner side edge of the bracket is in contact with the sealing rib of the outer side edge of the valve plate, and the inner side edge comprises two parallel middle sections located in the middle and two arc sections located on the upper and lower sides; the three structural units are combined to form a cylinder supported by the bracket, and the concave parts of the middle parts of the three valve plates are closely attached to each other, thereby achieving blocking inside the cylinder, so that the cylinder is in a normally closed state with two ends not connected;

[0013] The outer sides of the three valve plates are supported by their respective brackets and combined into a cylinder, which is then installed in the inner tube, and one end is plugged with an inlaid cover to form a negative pressure valve core;

[0014] The inner lower part of the inner tube is provided with three embedded conical surfaces corresponding to a bracket respectively, and three vent holes are evenly opened in the middle of the inner tube side, and each vent hole corresponds to a structural unit; the outer side of the inner tube is also provided with a plurality of annular sealing grooves, and sealing rings are installed in the sealing grooves;

[0015] The inlaid cover includes a ring cover with the same diameter as the inner tube, and three embedded columns are arranged below the ring cover, and embedded grooves are formed between the embedded columns. The upper end of each valve plate is embedded in an embedded groove in the inlaid cover, and the outer side surface of the embedded column is in contact with the inner wall of the inner tube;

[0016] After the inner tube is installed with the sealing ring, it is pressed into the valve shell with a duct seat on the side, and a sealing groove for installing an O-ring is formed between the lower end of the inner tube and the upper end of the inlaid cover and the inner wall of the valve shell; the upper and lower ends of the valve shell are respectively installed with joints through shrink rings.

[0017] The multi-purpose valve is characterized in that the bracket is an arc-shaped sheet body with an arc of 120 degrees, and a reinforcing rib is provided in the middle of the arc-shaped sheet body.

[0018] The negative pressure valve is characterized in that a circle of outwardly protruding connecting ribs are respectively provided at both ends of the outer side of the valve shell to facilitate connection with the joint by installing a shrink ring and tightening screws; this structure is used to replace the pipe clamp valve in the high-speed rail feces collection system to solve the problem of rapid replacement.

[0019] A one-way valve is characterized in that the valve core of the one-way valve is formed by cutting off 1 / 2 of the valve core in the negative pressure valve in radial direction and retaining the upper half.

[0020] The one-way valve is characterized in that it also includes a one-way valve housing, and the valve core of the one-way valve is installed into the one-way valve housing from bottom to top; the upper end of the one-way valve housing has a preset interface, and the lower end is installed with a one-way joint through a one-way valve housing shrink ring after the upper part of the cylinder is installed.

[0021] A high-speed rail pressure-maintaining valve is characterized in that the valve core of the pressure-maintaining valve is formed by connecting the valve core of the negative pressure valve and the valve core of the one-way valve in series, and the valve core of the one-way valve is located at the top.

[0022] The present invention is designed to simplify the sewage channel of the feces collection system, and can directly replace the existing negative pressure valve, and partially directly replace the pipe clamp valve. It can also replace the slide valve and butterfly valve in the newly built feces collection system. It is a truly multi-purpose valve.

[0023] The present invention is designed for quick replacement and can directly replace the pipe clamp valve in the current high-speed rail transfer feces collection system. The time for repairing and replacing a valve can be reduced from 4-6 hours to 4-6 minutes, and the service life can theoretically be doubled.

[0024] When the present invention is used as a one-way valve, it can be made into a large-caliber one-way valve. Compared with the existing one-way valve, the one-way valve has a smaller volume, a stronger reverse pressure bearing capacity, and a better sealing performance, and can be widely used in sewage pipelines.

[0025] When the present invention is used as a pressure-maintaining valve, it can solve the noise problem of the current pressure protector in the water supply and discharge pipelines of the head car and the tail car.

[0026] The present invention has a simple structure, a small volume, a light weight, and reliable performance, and can greatly reduce the maintenance workload of the high-speed railway feces collection system and reduce the application cost.

[0027] The present invention can effectively reduce the cost of high-speed rail feces collection systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of the valve plate of the present invention.

[0029] Figure 2 It is a side sectional view of the valve plate of the present invention.

[0030] Figure 3 It is a cross-sectional view of the negative pressure valve of the present invention.

[0031] Figure 4 It is an exploded view of the negative pressure valve of the present invention.

[0032] Figure 5 It is a front view of a bracket of a negative pressure valve of the present invention.

[0033] Figure 6 It is a three-dimensional diagram of the bracket of the negative pressure valve of the present invention.

[0034] Figure 7 It is a cross-sectional view of the inner tube of the negative pressure valve of the present invention.

[0035] Figure 8 It is a three-dimensional view of the inlaid cover of the negative pressure valve of the present invention.

[0036] Fig. 9 It is a cross-sectional view of the valve housing of the negative pressure valve of the present invention.

[0037] Fig.10 It is a cross-sectional view of the one-way valve of the present invention.

[0038] Fig.11 It is an assembly diagram of a half valve plate and a half bracket of a one-way valve of the present invention.

[0039] Fig.12 It is a cross-sectional view of the pressure retaining valve of the present invention.

[0040] Among them, 1, valve plate, 11, close fitting plate, 12, transition surface, 13, sealing rib, 14, rounded arc surface, 2, bracket, 21, arc section, 22, middle section, 23, reinforcing rib, 3 inner tube, 31, embedded cone surface, 32, vent hole, 33, sealing groove, 4, inlaid cover, 41 embedded groove, 42, embedded surface, 43, ring cover, 5, valve shell, 51, air duct seat, 52 connecting rib, 6, joint, 7, shrink link,

[0041] D1, half valve piece, D2, half bracket, D3, one-way valve housing, D4, one-way shrink ring, D5, one-way joint, B1, upper valve housing, B2, lower valve housing, B3, upper and lower embedded pipes. DETAILED DESCRIPTION

[0042] like Figure 1 , 2 , a multi-purpose valve sheet, which is characterized in that it includes an elastic sheet structure concave inwardly, and three valve sheets with the same structure are combined into a cylinder. The concave part of each valve sheet is tightly attached to the concave parts of the other two valve sheets, thereby achieving blocking inside the cylinder, so that the cylinder presents a normally closed state with both ends not connected.

[0043] like Figure 1 , 2The valve plate is characterized in that a circle of sealing ribs 13 are provided at the edge of the valve plate. When the three valve plates are combined into a cylinder, the sealing ribs 13 of the three valve plates are all in the same cylindrical surface; the middle part of the valve plate is composed of two mutually connected close-fitting plates 11 with an angle of 120°, and the inner angles of the two close-fitting plates 11 are made into rounded corners 14; located on the upper and lower sides of the two close-fitting plates 11 are two semi-conical transition surfaces 12, and the two transition surfaces 12 extend from the upper and lower sides of the two close-fitting plates 11 to the sealing ribs 13 respectively.

[0044] Application of the above valve plate in sewage valve.

[0045] like Fig.11 A one-way valve plate, characterized in that the valve plate is formed by cutting 1 / 2 radially from the middle of the multi-purpose valve plate.

[0046] The above-mentioned one-way valve disc is used in a one-way sewage valve.

[0047] like Figure 3-9 A negative pressure valve, characterized in that it comprises three valve discs 1 of the same structure and their respective brackets 2, the outer side edge of the valve disc 1 is embedded in the bracket 2 to form a structural unit, the inner edge of the bracket 2 is in contact with the sealing rib 13 of the outer edge of the valve disc 1, and the inner edge comprises two parallel middle sections 22 located in the middle and two arc sections 21 located on the upper and lower sides; the three structural units are combined to form a cylinder supported by the bracket 2, and the concave parts of the middle parts of the three valve discs 1 are closely attached to each other, thereby achieving blocking inside the cylinder, so that the cylinder is in a normally closed state with both ends not connected;

[0048] The outer sides of the three valve plates 1 are supported by their respective brackets 2 and combined into a cylinder, which is then installed in the inner tube 3, and one end is plugged with an inlaid cover 4 to form a negative pressure valve core;

[0049] The inner lower part of the inner tube 3 is provided with three embedded conical surfaces 31 corresponding to each bracket 2, and three vent holes 32 are evenly opened in the middle of the side of the inner tube 3, and each vent hole 32 corresponds to a structural unit; the outer side of the inner tube 3 is also provided with a plurality of annular sealing grooves 33, and a sealing ring is installed in the sealing groove 33;

[0050] The inlaid cover 4 includes a ring cover 43 with the same diameter as the inner tube 3. Three embedded columns 42 are provided below the ring cover 43. The embedded columns 42 form embedded grooves 41 between each other. The upper end of each valve plate 1 is embedded in an embedded groove 41 in the inlaid cover 3, and the outer side surface of the embedded column 42 is in contact with the inner wall of the inner tube 3.

[0051] After the inner tube 3 is installed with the sealing ring, it is pressed into the valve housing 5 with a duct seat 51 on the side. A sealing groove for installing an O-ring is formed between the lower end of the inner tube 3 and the upper end of the inlaid cover 4 and the inner wall of the valve housing 5; the upper and lower ends of the valve housing 5 are respectively installed with joints 6 through shrink rings 7.

[0052] The connector 6, the connecting link 7 and the fastening screws are only used to illustrate the completeness of the structure of the present invention, but are not critical structures.

[0053] like Figure 5 , 6 The negative pressure valve is characterized in that the bracket 2 is an arc-shaped sheet with an arc of 120 degrees, and a reinforcing rib 23 is provided in the middle of the arc-shaped sheet.

[0054] like Fig. 9 The negative pressure valve is characterized in that a circle of outwardly protruding connecting ribs 52 are respectively provided at both ends of the outer side surface of the valve shell 5, so as to facilitate the connection between the shrink ring 7 and the fastening screws and the joint 6; this structure is to replace the pipe clamp valve in the high-speed rail feces collection system to solve the problem of rapid replacement.

[0055] The above negative pressure valve is used as a sewage valve.

[0056] like Fig.10 , 11 A one-way valve, characterized in that the valve core of the one-way valve is formed by cutting off 1 / 2 of the valve core in the negative pressure valve radially (forming a half valve plate D1 and a half bracket D2) and retaining the upper half.

[0057] The one-way valve is characterized in that it also includes a one-way valve housing D3, and the valve core of the one-way valve is installed into the one-way valve housing D3 from bottom to top; the upper end of the one-way valve housing D3 has a preset interface, and the lower end is installed with a one-way joint D5 through a one-way valve housing shrink ring D4 after the upper part of the cylinder is installed.

[0058] The above-mentioned one-way valve is used as a one-way sewage valve.

[0059] A high-speed rail pressure-maintaining valve is characterized in that the valve core of the pressure-maintaining valve is formed by connecting the valve core of the negative pressure valve and the valve core of the one-way valve in series, and the valve core of the one-way valve is located at the top.

[0060] The valve housing can also be designed to include an upper valve housing B1 and a lower valve housing B2. The connection between the three valve plates 1 of the negative pressure valve with the same structure and their respective brackets 2 and the three groups of half valve plates D1 and half brackets D2 constituting the one-way valve can be achieved through the upper and lower embedded tubes B3.

Claims

1. A negative pressure valve, characterized in that It comprises three valve plates (1) and their respective brackets (2), wherein the valve plates comprise an elastic plate-shaped structure which is recessed inwardly, and the three valve plates with the same structure are combined into a cylinder, and the recessed part of each valve plate is closely attached to the recessed parts of the other two valve plates, thereby achieving blocking inside the cylinder, so that the cylinder presents a normally closed state with two ends not communicating with each other; The outer side edge of the valve plate (1) is embedded in the bracket (2) to form a structural unit, the inner side edge of the bracket (2) is in contact with the outer side edge of the valve plate (1), and the inner side edge includes two middle sections (22) located in the middle and parallel to each other, and two arc sections (21) located on the upper and lower sides; the three structural units are combined to form a cylinder supported by the bracket (2), and the concave parts of the middle parts of the three valve plates (1) are in contact with each other, thereby achieving sealing inside the cylinder, so that the cylinder is in a normally closed state with both ends not connected; The outer sides of the three valve plates (1) are supported on their respective brackets (2) and are combined into a cylinder, which is then installed in the inner tube (3) and one end is plugged with an inlaid cover (4), thereby forming a negative pressure valve core; The inner lower part of the inner tube (3) is provided with three embedded conical surfaces (31) corresponding to each bracket (2), and three ventilation holes (32) are evenly opened in the middle of the side surface of the inner tube (3), and each ventilation hole (32) corresponds to a structural unit; the outer side surface of the inner tube (3) is also provided with a plurality of annular sealing grooves (33), and sealing rings are installed in the sealing grooves (33); The inlaid cover (4) comprises a ring cover (43) having the same diameter as the inner tube (3), three embedded columns (42) are arranged below the ring cover (43), and embedded grooves (41) are formed between two of the embedded columns (42). The upper end of each valve plate (1) is embedded in an embedded groove (41) in the inlaid cover (4), and the outer side surface of the embedded column (42) is in contact with the inner wall of the inner tube (3); After the sealing ring is inserted into the inner tube (3), it is pressed into the valve housing (5) provided with a duct seat (51) on the side. A sealing groove for installing an O-ring is formed between the lower end of the inner tube (3), the upper end of the inlaid cover (4) and the inner wall of the valve housing (5). The upper and lower ends of the valve housing (5) are respectively provided with joints (6) through shrinking rings (7). The support (2) is an arc-shaped sheet body with an arc of 120 degrees, and a reinforcing rib (23) is provided in the middle of the arc-shaped sheet body.

2. The negative pressure valve according to claim 1, characterized in that The edge of the valve plate is provided with a circle of sealing ribs (13), and when the three valve plates are combined into a cylinder, the sealing ribs (13) of the three valve plates are all located in the same cylindrical surface; the middle part of the valve plate is composed of two closely fitting plates (11) connected to each other and forming an angle of 120°, and the inner corners of the two closely fitting plates (11) are rounded (14); located on the upper and lower sides of the two closely fitting plates (11) are two transition surfaces (12) in the shape of semi-conical surfaces, respectively, and the two transition surfaces (12) extend from the upper and lower sides of the two closely fitting plates (11) to the sealing ribs (13).

3. The negative pressure valve according to claim 1 or 2, characterized in that The two ends of the outer side surface of the valve housing (5) are respectively provided with a circle of connecting ribs (52) protruding outwards, so as to facilitate connection with the joint (6) by installing a shrinking ring (7) and fastening screws.

4. A high-speed rail pressure-maintaining valve, characterized in that The valve core of the pressure-maintaining valve is formed by connecting the valve core of the negative pressure valve described in claim 1 and the valve core of a one-way valve in series, and the valve core of the one-way valve is located at the top. The valve core of the one-way valve is formed by cutting off 1 / 2 of the valve core of the negative pressure valve described in claim 1 radially and retaining the upper half.

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