Valve with high sealing performance

Abstract

The utility model relates to the technical field of valves, in particular to a high-sealing-performance valve which comprises a valve body and pipelines arranged at the two ends of the valve body, butt joint pipes of hollow structures are symmetrically arranged on the two sides of the valve body, first sealing rings are arranged on the outer sides of the butt joint pipes, and first flange plates are arranged at the joints of the butt joint pipes and the valve body. Fixing blocks are symmetrically arranged on the left side and the right side of the inner side end face of the first flange plate, fixing grooves extending into the fixing blocks are formed in the outer side end face of the first flange plate, first mounting half grooves are symmetrically formed in the upper side and the lower side of the outer side end face of the first flange plate, and first fastening half columns are arranged on the first flange plate in the first mounting half grooves; the sealing performance of the connecting position of the valve body and the pipeline is improved, a medium is prevented from leaking from the connecting position of the valve body and the pipeline after long-time use, meanwhile, the connecting stability and fastening performance of the valve body and the pipeline are improved, and a certain gap between the valve body and the pipeline after long-time use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with high sealing performance. Background Art

[0002] Valves are pipe accessories used to open and close pipes, 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. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems.

[0003] Existing valves and pipelines are generally sealed with sealing rings between flanges and then fixed with a large number of bolts. After long-term use, there will be a certain gap between the valve and the pipeline, and liquid will leak from the gap, which is not conducive to the transportation of liquid. Utility Model Content

[0004] The utility model aims to provide a highly sealed valve in view of the defects of the prior art, so as to solve the problem that the existing valve and the pipeline are generally sealed by a sealing ring between flanges and then fixed by a large number of bolts, and a certain gap will exist between the valve and the pipeline after long-term use, and liquid will leak from the gap, which is not conducive to the transportation of the liquid.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highly sealing valve, comprising a valve body and pipes arranged at both ends of the valve body, wherein two sides of the valve body are symmetrically provided with butt-joint pipes of a hollow structure, the outer side of the butt-joint pipes is provided with a first sealing ring, a first flange is provided at the connection between the butt-joint pipe and the valve body, a fixing block is symmetrically provided on the left and right sides of the inner end surface of the first flange, a fixing groove extending into the fixing block is provided on the outer end surface of the first flange, a first installation half groove is symmetrically provided on the upper and lower sides of the outer end surface of the first flange, and a first fastening half column is provided on the first flange in the first installation half groove;

[0007] A docking groove for inserting a docking tube is provided on one side of the pipeline, a second flange is provided on the side of the pipeline close to the docking groove, a guide tube with a hollow structure is coaxially provided on the outer end surface of the second flange, a fixing plate that can be inserted into the fixing groove is symmetrically provided on the second flange on the outer side of the guide tube, and a first fixing hole for inserting a fixing bolt is penetrated through the fixing plate.

[0008] As a preferred technical solution of the utility model, the second flange plate is provided with a second installation half groove which is connected one-to-one with the first installation half groove when the valve body is connected to the pipeline, and the second flange plate in the second installation half groove is provided with a second fastening half column which can form a fastening column with the first fastening half column, and a fastening seat is installed on the fastening column.

[0009] As a preferred technical solution of the utility model, a fastening groove capable of being screwed with a fastening column is provided on the bottom end surface of the fastening seat.

[0010] As a preferred technical solution of the utility model, the first flange is provided with a guide groove for inserting the guide tube.

[0011] As a preferred technical solution of the utility model, a second sealing ring is provided on both the inner end surface and the outer end surface of the guide tube.

[0012] As a preferred technical solution of the utility model, a second fixing hole connected to the first fixing hole is formed on the fixing block, and the second fixing hole is connected to the fixing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When in use, first align the butt joint pipe on the valve body with the butt joint groove on the pipeline for insertion. In the process of inserting the butt joint pipe into the butt joint groove, rotate the pipeline so that the fixing plate is aligned with the fixing groove on the valve body for insertion, so that the guide pipe on the pipeline is inserted into the guide groove on the valve body. At this time, the first fixing hole on the fixing plate is connected with the second fixing hole on the fixing block, and the fixing bolt is inserted into the connected first fixing hole and second fixing hole for fixing, so that the first installation half groove on the first flange is connected with the second installation half groove on the second flange, and the first fastening half column in the first installation half groove and the second fastening half column in the second installation half groove are fitted to form a fastening column, and the fastening seat is screwed on the fastening column for fixing, thereby completing the installation of the valve body and the pipeline. The utility model improves the sealing performance of the connection between the valve body and the pipeline, avoids the leakage of the medium from the connection between the valve body and the pipeline after long-term use, and at the same time improves the stability and tightness of the connection between the valve body and the pipeline, avoids a certain gap between the valve body and the pipeline after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the valve body of the utility model;

[0017] Figure 3It is a structural schematic diagram of the pipeline of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the fastening seat of the utility model;

[0019] In the figure: 1. valve body; 101. butt joint pipe; 102. first sealing ring; 103. first flange; 104. fixing block; 105. first mounting half groove; 106. first fastening half column; 107. second fixing hole; 108. fixing groove; 109. guide groove; 2. pipeline; 201. second flange; 202. guide pipe; 203. second sealing ring; 204. butt joint groove; 205. second fastening half column; 206. second mounting half groove; 207. fixing plate; 208. first fixing hole; 3. fixing bolt; 4. fastening seat; 401. fastening groove. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Example

[0023] Combination Figure 1-3 As shown, a highly sealed valve comprises a valve body 1 and pipes 2 arranged at both ends of the valve body 1. The utility model improves the sealing of the connection between the valve body 1 and the pipe 2 to avoid leakage of the medium from the connection between the valve body 1 and the pipe 2 after long-term use. At the same time, the stability and tightness of the connection between the valve body 1 and the pipe 2 are improved to avoid a certain gap between the valve body 1 and the pipe 2 after long-term use.

[0024] like Figure 2The valve body 1 shown in the figure has butt pipes 101 with hollow structures symmetrically arranged on both sides of the valve body 1, and a first sealing ring 102 is arranged on the outer side of the butt pipe 101. The butt pipe 101 and the butt groove 204 cooperate with the first sealing ring 102, so as to improve the sealing performance of the connection between the valve body 1 and the pipeline 2. A first flange 103 is arranged at the connection between the butt pipe 101 and the valve body 1, and fixing blocks 104 are symmetrically welded on the left and right sides of the inner end surface of the first flange 103. A fixing groove 108 extending into the fixing block 104 is provided on the outer end surface of the first flange 103, and first installation half grooves 105 are symmetrically provided on the upper and lower sides of the outer end surface of the first flange 103. A first fastening half column 106 is provided on the first flange 103 in the first installation half groove 105.

[0025] The first flange 103 is provided with a guide groove 109 for the guide tube 202 to be inserted into, and the guide groove 109 and the butt tube 101 are located on the same end surface of the first flange 103 .

[0026] Among them, a second fixing hole 107 connected to the first fixing hole 208 is opened on the fixing block 104, the second fixing hole 107 is connected to the fixing groove 108, and the second fixing hole 107 and the first fixing hole 208 are internal threaded holes of the same size. The second fixing hole 107 and the first fixing hole 208 are matched with the setting of the fixing bolt 3, thereby improving the stability and tightness of the connection between the valve body 1 and the pipeline 2.

[0027] like Figure 3 The pipe 2 shown in the figure has a docking groove 204 on one side of the pipe 2 for plugging into the docking pipe 101, a second flange 201 is provided on the side of the pipe 2 close to the docking groove 204, a guide pipe 202 with a hollow structure is coaxially provided on the outer end face of the second flange 201, and a fixing plate 207 that can be plugged into the fixing groove 108 is symmetrically provided on the second flange 201 outside the guide pipe 202, and a first fixing hole 208 that can be plugged into the fixing bolt 3 is penetrated through the fixing plate 207.

[0028] Among them, the second flange 201 is provided with a second installation half groove 206 which is connected one by one with the first installation half groove 105 when the valve body 1 is connected to the pipeline 2, the second flange 201 in the second installation half groove 206 is provided with a second fastening half column 205 which can form a fastening column with the first fastening half column 106, and a fastening seat 4 is installed on the fastening column, and a fastening groove 401 which can be screwed for the fastening column is provided on the bottom end surface of the fastening seat 4, and the fastening column composed of the fastening seat 4 and the first fastening half column 106 and the second fastening half column 205 is matched, thereby further improving the stability and fastness of the connection between the valve body 1 and the pipeline 2.

[0029] The second sealing rings 203 are disposed on both the inner and outer end surfaces of the guide tube 202 . The guide tube 202 , the guide groove 109 and the two second sealing rings 203 further improve the sealing performance of the connection between the valve body 1 and the pipeline 2 .

[0030] The working principle of the utility model is:

[0031] When in use, first align the butt joint pipe 101 on the valve body 1 with the butt joint groove 204 on the pipe 2 for plugging. During the process of plugging the butt joint pipe 101 into the butt joint groove 204, rotate the pipe 2 so that the fixing plate 207 is aligned with the fixing groove 108 on the valve body 1 for plugging, so that the guide pipe 202 on the pipe 2 is plugged into the guide groove 109 on the valve body 1. At this time, the first fixing hole 208 on the fixing plate 207 is connected with the second fixing hole 107 on the fixing block 104, and the fixing bolt 3 is inserted into the connected first fixing hole 208 and the second fixing hole 107 for fixing, so that the first fixing hole 208 on the first flange 103 is fixed. The mounting half groove 105 is communicated with the second mounting half groove 206 on the second flange 201, and the first fastening half column 106 in the first mounting half groove 105 and the second fastening half column 205 in the second mounting half groove 206 are fitted together to form a fastening column, and the fastening seat 4 is screwed on the fastening column for fixing, thereby completing the installation of the valve body 1 and the pipeline 2. The utility model improves the sealing performance of the connection between the valve body 1 and the pipeline 2, avoiding leakage of the medium from the connection between the valve body 1 and the pipeline 2 after long-term use, and at the same time improves the stability and fastening of the connection between the valve body 1 and the pipeline 2, avoiding a certain gap between the valve body 1 and the pipeline 2 after long-term use.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A valve with high sealing performance, comprising a valve body (1) and pipes (2) arranged at both ends of the valve body (1), characterized in that: A butt-joint pipe (101) with a hollow structure is symmetrically provided on both sides of the valve body (1), a first sealing ring (102) is provided on the outer side of the butt-joint pipe (101), a first flange (103) is provided at the connection between the butt-joint pipe (101) and the valve body (1), a fixing block (104) is symmetrically provided on the left and right sides of the inner end surface of the first flange (103), a fixing groove (108) extending into the fixing block (104) is provided on the outer end surface of the first flange (103), a first installation half groove (105) is symmetrically provided on the upper and lower sides of the outer end surface of the first flange (103), and a first fastening half column (106) is provided on the first flange (103) in the first installation half groove (105); A docking groove (204) capable of being plugged into a docking tube (101) is provided on one side of the pipeline (2), a second flange (201) is provided on the side of the pipeline (2) close to the docking groove (204), a guide tube (202) with a hollow structure is coaxially provided on the outer end surface of the second flange (201), a fixing plate (207) capable of being plugged into the fixing groove (108) is symmetrically provided on the second flange (201) outside the guide tube (202), and a first fixing hole (208) capable of being plugged into a fixing bolt (3) is penetrated through the fixing plate (207).

2. A high sealing valve according to claim 1, characterized in that: The second flange (201) is provided with a second installation half groove (206) which is in one-to-one communication with the first installation half groove (105) when the valve body (1) is connected to the pipeline (2); the second flange (201) in the second installation half groove (206) is provided with a second fastening half column (205) which can form a fastening column with the first fastening half column (106); and a fastening seat (4) is installed on the fastening column.

3. A high-sealing valve according to claim 2, characterized in that: The bottom end surface of the fastening seat (4) is provided with a fastening groove (401) capable of being threaded with a fastening column.

4. A high sealing valve according to claim 1, characterized in that: The first flange (103) is provided with a guide groove (109) for inserting the guide tube (202).

5. A high sealing valve according to claim 1, characterized in that: A second sealing ring (203) is provided on both the inner end surface and the outer end surface of the guide tube (202).

6. A high-sealing valve according to claim 1, characterized in that: The fixing block (104) is provided with a second fixing hole (107) which is in communication with the first fixing hole (208); the second fixing hole (107) is in communication with the fixing groove (108).

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