Valve plate convenient to install

Abstract

The utility model relates to the technical field of gate valves, in particular to a valve plate convenient to install, which comprises a valve plate main body, a boss is fixedly arranged on the side wall of the valve plate main body, an external thread pipe is fixedly arranged at the top end of the boss, and the valve plate main body is arranged at the end part of a valve rod through a connecting assembly; a valve rod is inserted into an external threaded pipe until a trapezoidal connecting block is inserted into a square groove from the external threaded pipe and clamped to the bottom wall of the square groove, then an embedded block is moved inwards along the square groove so that a trapezoidal connecting groove in the embedded block can be connected with the trapezoidal connecting block in an embedded mode, then a rotary knob cover is moved downwards, and meanwhile the position of a sleeve frame is adjusted so that a frame groove of the sleeve frame can be inserted into a boss; the knob cover is screwed to be in threaded connection with the external threaded pipe, so that the boss is completely inserted into the frame groove of the sleeve frame to limit and clamp the embedded block on the inner wall of the sleeve frame, the position of the embedded block is fixed to ensure stable embedded connection between the trapezoidal connecting groove and the trapezoidal connecting block, and the valve plate main body is mounted; operation is easy, auxiliary tools are not needed, and the valve plate body can be rapidly installed at the end of the valve rod conveniently.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically a valve plate that is easy to install. Background Technology

[0002] A gate valve is an opening and closing element consisting of a gate. The gate's movement is perpendicular to the fluid direction. Gate valves can only be fully open or fully closed; they cannot be used for regulation or throttling. Gate valves achieve sealing through the contact between the valve seat and the gate. The sealing surface is usually overlaid with a metal material to increase wear resistance, such as 1Cr13, STL6, or stainless steel. Gates can be rigid or resilient; based on the type of gate, gate valves are classified as rigid gate valves or resilient gate valves.

[0003] Chinese patent document CN210600239U discloses a gate valve with a detachable valve seat, including a valve body, valve stem, valve seat, valve plate, and valve cover. The valve body is divided into a communicating upper valve cavity and a lower valve cavity. The lower valve cavity serves as a fluid passage for the medium. The valve seat is divided into a left valve seat and a right valve seat, which are respectively installed on the valve body sidewalls on both sides of the valve plate in the fluid passage of the lower valve cavity. A gasket is provided between the valve seat and the sidewall of the lower valve cavity. The valve seat is wedge-shaped, and a groove is formed on the top of the valve seat. A limiting pressure frame is installed inside the upper valve cavity. The upper part of the limiting pressure frame is a disc. Support legs are symmetrically arranged on both sides of the bottom surface of the disc. The edge of the disc is engaged in a circular groove opened in the inner wall of the top outlet of the upper valve cavity. The bottom of the support legs is provided with a protrusion that adapts to the groove on the valve seat. The valve seat of this utility model is detachably connected. The protrusion at the bottom of the limiting pressure frame cooperates with the groove at the bottom of the valve seat to prevent the valve seat from rotating. When the valve seat needs to be replaced or maintained, it is easy to disassemble without replacing the entire gate valve, saving disassembly and maintenance time and improving the efficiency of online maintenance.

[0004] However, in the above-mentioned solutions and existing technologies, the valve plate and valve stem of the gate valve are fixedly connected. When the gate valve is under maintenance, it is usually necessary to use auxiliary tools to unscrew the multiple screws used to fix the valve plate and valve stem, which is inconvenient and affects the efficiency of valve plate disassembly and assembly. Improvement and optimization are needed. Utility Model Content

[0005] The purpose of this invention is to provide a valve plate that is easy to install, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve plate that is easy to install, comprising: a valve plate body, wherein a boss is fixedly provided on the side wall of the valve plate body, and an external threaded pipe is fixedly provided on the top of the boss; the valve plate body is disposed at the end of the valve stem through a connecting assembly; the connecting assembly includes a trapezoidal connecting block, an insert, a knob cover, and a sleeve frame.

[0007] Preferably, a trapezoidal connecting block is fixedly provided on the end wall of the valve stem, a square groove is opened on the side wall of the boss, the external threaded pipe groove is connected to the square groove, the valve stem is inserted into the external threaded pipe, and the trapezoidal connecting block is engaged with the bottom wall of the square groove.

[0008] Preferably, sliders are symmetrically fixed on both sides of the square groove, and two inserts are symmetrically and movably fitted inside the square groove. The side walls of the two inserts are engaged, and grooves are symmetrically opened on both sides of the inserts. The sliders are movably engaged in the grooves.

[0009] Preferably, a trapezoidal connecting groove is provided on the side wall of the insert, the trapezoidal connecting groove is engaged with the trapezoidal connecting block, and a trapezoidal swivel is provided on the side wall of the insert.

[0010] Preferably, a limit ring is fixedly sleeved on the peripheral wall of the valve stem, and a knob cover is movably sleeved on the valve stem. The knob cover is engaged with the limit ring, and a sleeve frame is rotatably connected to the peripheral wall of the knob cover.

[0011] Preferably, the knob cover is threaded to the external threaded pipe, the boss is inserted into the slot of the sleeve frame, the inner wall of the sleeve frame is engaged with the insert, the two side walls of the sleeve frame are symmetrically provided with hook grooves, and the valve plate body is symmetrically fixed with elastic hooks, which are engaged with the hook grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The valve plate body is installed by inserting the valve stem into the external threaded pipe until the trapezoidal connecting block is inserted into the square groove and engages with the bottom wall of the square groove. Then, the insert is moved inward along the square groove so that the trapezoidal connecting groove on the insert engages with the trapezoidal connecting block. Next, the knob cover is moved downward while adjusting the position of the sleeve frame so that its frame groove engages with the boss. The knob cover is then rotated to make it threadedly connected to the external threaded pipe, so that the boss is fully inserted into the frame groove of the sleeve frame, thereby limiting and engaging the insert on the inner wall of the sleeve frame. This fixes the position of the insert, ensuring that the trapezoidal connecting groove and the trapezoidal connecting block are stably engaged, thus completing the installation of the valve plate body. The operation is simple, requires no auxiliary tools, and facilitates the quick installation of the valve plate body at the end of the valve stem. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the block structure connection of this utility model;

[0016] Figure 3 This is a schematic diagram of the block structure connection of this utility model;

[0017] Figure 4 This is a schematic diagram of the valve stem structure connection of this utility model.

[0018] In the figure: valve plate body 1, boss 2, external threaded pipe 3, valve stem 4, trapezoidal connecting block 5, square groove 6, slider 7, insert 8, slide groove 9, trapezoidal connecting groove 10, trapezoidal push groove 11, limit ring 12, knob cover 13, sleeve frame 14, hook groove 15, elastic hook 16. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-4 The present invention provides the following two preferred embodiments:

[0021] Example 1: A valve plate that is easy to install, comprising: a valve plate body 1, wherein a boss 2 is fixedly provided on the side wall of the valve plate body 1, and an externally threaded pipe 3 is fixedly provided on the top of the boss 2; the valve plate body 1 is disposed at the end of a valve stem 4 via a connecting assembly; characterized in that: the connecting assembly includes a trapezoidal connecting block 5, an insert 8, a knob cover 13, and a sleeve 14; the trapezoidal connecting block 5 is fixedly provided on the end wall of the valve stem 4, and a square groove 6 is formed on the side wall of the boss 2, with the externally threaded pipe 3 connected to the square groove 6. The valve stem 4 is inserted into the external threaded pipe 3, and the trapezoidal connecting block 5 is engaged with the bottom wall of the square groove 6; sliders 7 are symmetrically fixed on both sides of the square groove 6, and two inserts 8 are symmetrically and movably embedded in the square groove 6. The side walls of the two inserts 8 are engaged, and sliding grooves 9 are symmetrically opened on both sides of the inserts 8. The sliders 7 are movably engaged in the sliding grooves 9; trapezoidal connecting grooves 10 are opened on the side walls of the inserts 8, and trapezoidal connecting grooves 10 are engaged with the trapezoidal connecting block 5. Trapezoidal swivel grooves 11 are opened on the side walls of the inserts 8.

[0022] In use, the valve stem 4 is inserted into the external threaded tube 3 until the trapezoidal connecting block 5 is inserted from the external threaded tube 3 into the square groove 6 and engages with the bottom wall of the square groove 6. Then, the insert 8 is moved inward along the square groove 6 until the slider 7 moves to the end of the slide groove 9 so that the trapezoidal connecting groove 10 on the insert 8 engages with the trapezoidal connecting block 5. The outer side of the insert 8 is provided with a trapezoidal slot 11 to facilitate the removal of the insert 8 during disassembly. After that, the position of the insert 8 is fixed to complete the connection and installation of the valve plate body 1 and the valve stem 4. The operation is simple and facilitates the quick connection of the valve plate body 1 to the end of the valve stem 4.

[0023] Example 2: Based on Example 1, a limiting ring 12 is fixedly sleeved on the periphery of the valve stem 4, and a knob cover 13 is movably sleeved on the valve stem 4. The knob cover 13 is engaged with the limiting ring 12, and a frame 14 is rotatably connected to the periphery of the knob cover 13. The knob cover 13 is threadedly connected to the external threaded pipe 3, and the boss 2 is inserted into the frame groove of the frame 14. The inner wall of the frame 14 is engaged with the insert 8. Hook grooves 15 are symmetrically opened on both sides of the frame 14, and elastic hooks 16 are symmetrically fixed on the side wall of the valve plate body 1. The elastic hooks 16 are engaged with the hook grooves 15.

[0024] In use, after the movable insert 8 engages with the trapezoidal connecting groove 10 and the trapezoidal connecting block 5, the knob cover 13 is moved downwards along the valve stem 4. At the same time, the position of the sleeve frame 14 is adjusted so that its frame groove engages with the boss 2. After the knob cover 13 contacts the external threaded pipe 3, the knob cover 13 is rotated with the help of the protrusion on the peripheral wall of the knob cover 13 to make it threadedly connected to the external threaded pipe 3. During the process, the sleeve frame 14 moves downwards until the knob cover 13 engages with the limiting ring 12 and the elastic hook 16 engages with the hook groove 15. At this time, the boss 2 is fully inserted into the frame groove of the sleeve frame 14 to realize the limiting engagement of the insert 8 on the inner wall of the sleeve frame 14, thereby fixing the position of the insert 8 to ensure that the trapezoidal connecting groove 10 and the trapezoidal connecting block 5 are stably engaged. The operation is simple and does not require auxiliary tools, which makes it easy to quickly install the valve plate body 1 at the end of the valve stem 4.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve plate for ease of installation, comprising: The valve plate body (1) has a boss (2) fixedly provided on the side wall of the valve plate body (1), and an external threaded pipe (3) fixedly provided on the top of the boss (2). The valve plate body (1) is set at the end of the valve stem (4) through a connecting assembly. The characteristic feature is that the connecting component includes a trapezoidal connecting block (5), an insert (8), a knob cover (13), and a sleeve (14).

2. The valve plate for easy installation according to claim 1, characterized in that: The valve stem (4) is fixedly provided with a trapezoidal connecting block (5) on its end wall. The boss (2) has a square groove (6) on its side wall. The external threaded pipe (3) is connected to the square groove (6). The valve stem (4) is inserted into the external threaded pipe (3). The trapezoidal connecting block (5) is engaged with the bottom wall of the square groove (6).

3. The valve plate for easy installation according to claim 2, characterized in that: Slider blocks (7) are symmetrically fixed on both sides of the square groove (6). Two insert blocks (8) are symmetrically and movably fitted inside the square groove (6). The side walls of the two insert blocks (8) are engaged. Slide grooves (9) are symmetrically opened on both sides of the insert blocks (8). The sliders (7) are movably engaged in the slide grooves (9).

4. The valve plate for easy installation according to claim 1, characterized in that: The side wall of the insert (8) is provided with a trapezoidal connecting groove (10), which is engaged with the trapezoidal connecting block (5). The side wall of the insert (8) is provided with a trapezoidal swivel groove (11).

5. The valve plate for easy installation according to claim 1, characterized in that: A limiting ring (12) is fixedly sleeved on the peripheral wall of the valve stem (4), and a knob cover (13) is movably sleeved on the valve stem (4). The knob cover (13) is engaged with the limiting ring (12), and a sleeve frame (14) is rotatably connected on the peripheral wall of the knob cover (13).

6. The valve plate for easy installation according to claim 5, characterized in that: The knob cover (13) is threadedly connected to the external threaded pipe (3), the boss (2) is inserted into the frame groove of the sleeve (14), the inner wall of the sleeve (14) is engaged with the insert (8), the two side walls of the sleeve (14) are symmetrically provided with hook grooves (15), the valve plate body (1) is symmetrically fixed with elastic hooks (16), and the elastic hooks (16) are engaged with the hook grooves (15).

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