Large-flow high-pressure stop valve

Abstract

The high-flow high-pressure stop valve comprises a stop valve body and a connecting assembly, a flange is arranged at the upper end of the stop valve body, a valve deck is arranged at the upper end of the flange, a plurality of open grooves are formed in the lower end of the outer wall of the flange and the upper end of the outer wall of the valve deck, and clamping grooves are formed in the middles of the open grooves. The connecting assembly comprises a U-shaped plate arranged in the open groove, an elastic piece arranged in the U-shaped plate, a clamping block fixed to the lower end of the elastic piece and a pull rod fixed to the middle of the upper end of the clamping block, the opposite outer walls of the U-shaped plate are attached to the inner wall of the open groove, and the clamping block is connected with the clamping groove in a clamped mode. According to the high-flow high-pressure stop valve, the valve cover and the flange are clamped and installed together through the U-shaped plate, the elastic piece and the clamping block, an existing mode that the valve cover is installed on the valve body through a bolt is replaced, installation is easy, the U-shaped plate can be taken down to relieve limiting of the valve cover by lifting the pull rod upwards in the later period, and therefore the valve cover can be rapidly disassembled; and the valve cover is relatively simple to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure shut-off valve technology, specifically a high-flow-rate high-pressure shut-off valve. Background Technology

[0002] The opening and closing element of a high-pressure gate valve is a plug-shaped valve disc that moves linearly along the centerline of the fluid. The valve stem movement can be either a rising stem type (the valve stem rises and falls, but the handwheel does not) or a rising and rotating stem type (the handwheel and valve stem rotate and rise together, with the nut located on the valve body). Gate valves are only suitable for fully open and fully closed operation and are not permitted for regulation or throttling.

[0003] In existing high-flow-rate high-pressure shut-off valves, the valve cover and valve body are mostly connected by bolts. During installation and disassembly, tools are required to tighten the bolts, making the disassembly and assembly of the valve cover quite troublesome. Therefore, we propose a high-flow-rate high-pressure shut-off valve. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing high-pressure shut-off valves, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a high-flow-rate, high-pressure shut-off valve. The valve cover and flange are snapped together by a U-shaped plate, elastic element, and locking block, replacing the existing bolts used to install the valve cover on the valve body. The installation is relatively simple. Later, the U-shaped plate can be removed by pulling the pull rod upward to release the valve cover's limit, so that the valve cover can be quickly disassembled. The disassembly and assembly of the valve cover is relatively simple.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A high-flow-rate, high-pressure shut-off valve, comprising:

[0009] The valve body of the shut-off valve has a flange at its upper end, and a valve cover at the upper end of the flange. Multiple slots are provided at the lower end of the outer wall of the flange and the upper end of the outer wall of the valve cover, and a retaining groove is provided in the middle of the slots.

[0010] The connecting assembly includes a U-shaped plate disposed in the slot, an elastic element disposed inside the U-shaped plate, a locking block fixed to the lower end of the elastic element, and a pull rod fixed to the middle of the upper end of the locking block. The relative outer walls of the U-shaped plate are in contact with the inner wall of the slot, and the locking block is engaged with the slot.

[0011] As a preferred embodiment of the high-flow-rate high-pressure shut-off valve of this utility model, a circular ring plate is fixed to the outer side of the lower middle part of the valve cover, a positioning plate is fixed to the opposite outer wall of the circular ring plate, a positioning groove is opened on the opposite inner wall of the flange, the positioning plate is snapped into the positioning groove, and the outer wall of the circular ring plate is in contact with the inner wall of the flange.

[0012] In a preferred embodiment of the high-flow-rate, high-pressure shut-off valve described in this utility model, a sealing ring is provided between the flange and the valve cover, and the sealing ring is made of rubber.

[0013] In a preferred embodiment of the high-flow-rate, high-pressure shut-off valve described in this utility model, the inner wall of the U-shaped plate is provided with a protective pad, the protective pad being made of rubber.

[0014] In a preferred embodiment of the high-flow-rate, high-pressure shut-off valve described in this utility model, the elastic element is a spring or an elastic sleeve.

[0015] In a preferred embodiment of the high-flow-rate, high-pressure shut-off valve described in this utility model, the lower end of the locking block is inclined, and the inner height of the lower end of the locking block is higher than the outer height.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This large flow high pressure shut-off valve uses a U-shaped plate, elastic element and locking block to snap the valve cover and flange together, replacing the existing bolts to install the valve cover on the valve body. The installation is simpler. Later, the U-shaped plate can be removed by pulling the pull rod upward to release the valve cover's limit, so as to quickly disassemble the valve cover. The disassembly and assembly of the valve cover is relatively simple. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of a three-dimensional structure of a high-flow-rate, high-pressure shut-off valve.

[0019] Figure 2This is a cross-sectional three-dimensional structural diagram of a high-flow-rate, high-pressure shut-off valve connection assembly.

[0020] Figure 3 This is a cross-sectional view of the flange and valve cover of a high-flow-rate, high-pressure shut-off valve.

[0021] In the diagram: 100, valve body of the gate valve; 101, flange; 102, valve cover; 103, annular plate; 104, positioning plate; 200, connecting assembly; 210, U-shaped plate; 220, elastic element; 230, locking block; 240, pull rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a high-flow, high-pressure shut-off valve. The valve cover and flange are snapped together by a U-shaped plate, elastic element, and locking block, replacing the existing bolts for installing the valve cover on the valve body. The installation is relatively simple. Later, the U-shaped plate can be removed by pulling the pull rod upward to release the valve cover's limit, so that the valve cover can be quickly disassembled. The disassembly and assembly of the valve cover is relatively simple.

[0026] Figures 1-3 The diagram shown is a structural schematic of one embodiment of a high-flow-rate, high-pressure shut-off valve according to this utility model. Please refer to [link / reference]. Figures 1-3 The high-flow-rate, high-pressure shut-off valve of this embodiment includes a shut-off valve body 100 and a connecting assembly 200.

[0027] The valve body 100 of the shut-off valve is provided with a flange 101 at the upper end, and a valve cover 102 is provided at the upper end of the flange 101. Multiple slots are provided at the lower end of the outer wall of the flange 101 and the upper end of the outer wall of the valve cover 102, and a retaining groove is provided in the middle of the slots. Preferably, in this embodiment, a circular ring plate 103 is fixed to the outer side of the lower middle part of the valve cover 102, and a positioning plate 104 is fixed to the opposite outer wall of the circular ring plate 103. A positioning groove is opened on the opposite inner wall of the flange 101, and the positioning plate 104 is snapped into the positioning groove. The outer wall of the circular ring plate 103 fits against the inner wall of the flange 101. The valve cover 102 is positioned on the upper end of the flange 101 under the action of the circular ring plate 103 and the positioning plate 104 to ensure that the grooves of the valve cover 102 and the flange 101 can be aligned. A sealing ring is provided between the flange 101 and the valve cover 102. The sealing ring is made of rubber. The sealing ring provided between the flange 101 and the valve cover 102 plays a role in sealing the gap at the connection between the two, thereby ensuring the sealing of the connection between the two.

[0028] The connecting assembly 200 includes a U-shaped plate 210 disposed in the slot, an elastic element 220 disposed inside the U-shaped plate 210, a locking block 230 fixed to the lower end of the elastic element 220, and a pull rod 240 fixed to the middle of the upper end of the locking block 230. The outer wall of the U-shaped plate 210 is in contact with the inner wall of the slot, and the locking block 230 is engaged with the slot. Preferably, in this embodiment, a protective pad is provided on the inner wall of the U-shaped plate 210. The protective pad is made of rubber. The protective pad on the inner wall of the U-shaped plate 210 protects the U-shaped plate 210 and the inner wall of the slot, preventing the inner wall of the U-shaped plate 210 from directly contacting the inner wall of the slot and causing wear, thus effectively extending its service life. The lower end of the locking block 230 is inclined, and the inner height of the lower end of the locking block 230 is higher than the outer height. When the U-shaped plate 210 is placed in the slot, the locking block 230 can automatically move upward under the pressure of the valve cover 102 to compress the elastic element 220, eliminating the trouble of manually pulling and compressing the elastic element 220.

[0029] Combination Figures 1-3This embodiment of a high-flow-rate, high-pressure shut-off valve is used as follows: The valve cover 102 is positioned on the upper end of the flange 101 by the annular plate 103 and the positioning plate 104. The valve cover 102 is positioned on the upper end of the flange 101 by the action of the annular plate 103 and the positioning plate 104, ensuring that the slots of the valve cover 102 and the flange 101 are aligned. Then, a U-shaped plate 210 is placed in the slots of the flange 101 and the valve cover 102. The protective pad on the inner wall of the U-shaped plate 210 protects the U-shaped plate 210 and the inner wall of the slot, preventing the U-shaped plate 210 from... The inner wall directly contacts the grooved inner wall, causing wear and effectively extending its service life. Under the action of the elastic element 220, the locking block 230 is locked into the slot of the groove on the outer wall of the valve cover 102, thereby installing the valve cover 102 on the flange 101. This replaces the existing bolts to install the valve cover 102 on the valve body, making the installation relatively simple. Later, by pulling the pull rod 240 upward, the locking block 230 can be moved upward and the elastic element 220 can be compressed to release the U-shaped plate 210 from limiting the valve cover 102, so that the valve cover 102 can be quickly disassembled. The disassembly and assembly of the valve cover 102 is relatively simple.

[0030] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A large flow high pressure globe valve characterized by, Include: The valve body (100) is provided with a flange (101) at the upper end, the upper end of the flange (101) is provided with a valve cover (102), the outer wall of the flange (101) and the outer wall of the valve cover (102) are provided with a plurality of slots, and the middle of the slot is provided with a clamping groove; The connecting assembly (200) comprises a U-shaped plate (210) arranged in the slot, an elastic member (220) arranged in the U-shaped plate (210), a clamping block (230) fixed at the lower end of the elastic member (220), and a pull rod (240) fixed at the middle of the upper end of the clamping block (230), the opposite outer walls of the U-shaped plate (210) are fitted with the inner walls of the slot, and the clamping block (230) is connected with the clamping groove.

2. A high pressure globe valve according to claim 1, wherein The lower middle of the valve cover (102) is fixed with a circular ring plate (103) outside, the opposite outer walls of the circular ring plate (103) are fixed with a positioning plate (104), the opposite inner walls of the flange (101) are provided with a positioning groove, the positioning plate (104) is connected in the positioning groove, and the outer wall of the circular ring plate (103) is fitted with the inner wall of the flange (101).

3. A high pressure globe valve according to claim 2, wherein The flange (101) and the valve cover (102) are provided with a sealing ring, and the material of the sealing ring is rubber.

4. A high pressure globe valve according to claim 1, wherein The inner wall of the U-shaped plate (210) is provided with a protective pad, and the material of the protective pad is rubber.

5. A high pressure globe valve according to claim 1, wherein The elastic member (220) is a spring or an elastic sleeve.

6. A high pressure globe valve according to claim 1, wherein The lower end of the clamping block (230) is inclined, and the inner side height of the lower end of the clamping block (230) is higher than the outer side height.

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