High-strength gate valve

Abstract

The utility model discloses a high-strength gate valve and relates to the field of ball valves. The high-strength gate valve comprises a valve body unit and a lifting unit arranged above the valve body unit, the valve body unit comprises two valve body main bodies and a gate plate, the two valve body main bodies are symmetrically arranged, a sealing shell is installed between the two valve body main bodies, a movable cavity is formed between the valve body main bodies and the sealing shell, the gate plate is arranged in the movable cavity in a sliding mode, and the gate plate is arranged in the movable cavity. The gate plate can vertically move through the lifting unit and comprises a thickened plate body and a protective plate body, and the protective plate body tightly abuts against the thickened plate body. According to the high-strength gate valve, the protection plate body is arranged on the thickening plate body, the overall strength of the gate plate is improved, and when the protection plate body is damaged, the protection plate body can be independently detached and replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, concretely is a high strength gate valve. BACKGROUND

[0002] Gate valve is a kind of valve, and the movement direction of the gate plate is perpendicular to the fluid direction.The working principle of gate valve is to control the on-off of fluid by the lifting of gate plate.When the gate plate is lifted, the fluid passage is opened, and the fluid can pass smoothly;When the gate plate is lowered, the gate plate is tightly combined with the valve seat, and the flow of fluid is cut off, to achieve the effect of sealing.

[0003] In the process of use, the gate plate needs to be used to cut off the water flow, but the gate plate will be worn to different degrees due to direct contact with fluid or gas during long-term use.When the wear reaches a certain degree, the sealing performance of the gate plate will decrease significantly, and even may cause leakage and other problems.The gate plate may be corroded by the medium, especially when handling corrosive fluid.Corrosion can weaken the material strength of the gate plate, affect its sealing performance and service life.In some cases, the gate plate may be deformed due to excessive pressure or impact.The deformed gate plate may not be tightly combined with the valve seat, resulting in sealing failure.

[0004] Therefore, the present application provides a high-strength gate valve. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a high-strength gate valve, which solves the problem that the gate plate will be worn to different degrees due to direct contact with fluid or gas during long-term use.When the wear reaches a certain degree, the sealing performance of the gate plate will decrease significantly, and even may cause leakage and other problems.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a high-strength gate valve, comprising a valve body unit and a lifting unit arranged above the valve body unit, the valve body unit comprising:

[0007] Valve body, two valve bodies are symmetrically arranged, and a sealing shell is installed between the two valve bodies, and an active cavity is formed between the valve body and the sealing shell;

[0008] Gate plate, which is slidably arranged in the active cavity, and the gate plate can be vertically moved by the lifting unit;

[0009] The gate plate comprises:

[0010] Thickened plate body, a plurality of positioning holes are formed in the side surface of the thickened plate body;

[0011] The protection plate body is tightly abutted with the thickened plate body, and a plurality of positioning pins are fixedly installed on one side close to the thickened plate body and are respectively inserted into the plurality of positioning holes.

[0012] Preferably, the two valve body main bodies are fixedly connected with the sealing shell through bolts, and the valve body main body is provided with a through communication hole.

[0013] Preferably, the lifting unit comprises:

[0014] The mounting seat is fixedly installed on the top of the valve body main body through bolts;

[0015] The fixed seat is arranged above the mounting seat;

[0016] The screw rod is rotatably connected with the fixed seat at the top end;

[0017] The nut block is threadedly connected with the screw rod, and the side surface of the nut block is fixedly connected with the lifting plate, and the bottom of the lifting plate is fixedly connected with the thickened plate body.

[0018] Preferably, the bottom end of the lifting plate is movably inserted into the mounting seat.

[0019] Preferably, the connecting plate is fixedly connected between the mounting seat and the fixed seat through bolts.

[0020] Preferably, the top end of the screw rod extends outward and is fixedly connected with the handle.

[0021] The utility model discloses a high strength gate valve, which has the following beneficial effects: the high strength gate valve can realize vertical movement of the gate plate through the lifting unit during use, thereby controlling the on-off of fluid in the valve body main body, and the overall strength of the gate plate is improved through the protection plate body arranged on the thickened plate body. When the protection plate body is damaged, the protection plate body can be individually disassembled and replaced, and the plurality of positioning pins on the side of the protection plate body are respectively inserted into the plurality of positioning holes on the thickened plate body, thereby preventing the thickened plate body and the protection plate body from being separated during vertical movement. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2The overall sectional view of the utility model;

[0025] Figure 3 The partial structure schematic view of the utility model;

[0026] Figure 4 The structure schematic view of the lifting plate and the thickened plate body of the utility model;

[0027] Figure 5 The structure schematic view of the protective plate body of the utility model.

[0028] In the figure: 1, valve body unit;11, valve body main body;12, sealing shell;13, movable cavity;14, gate;141, thickened plate body;142, protective plate body;143, positioning hole;144, positioning pin;2, lifting unit;21, mounting seat;22, fixed seat;23, screw rod;24, nut block;25, lifting plate;26, connecting plate;27, handle. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the application, rather than all the embodiment. Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the application.

[0030] The embodiment of the application provides a high-strength gate valve, which solves the problem that the gate plate is worn to different degrees due to direct contact with fluid or gas during long-term use. When the wear reaches a certain degree, the sealing performance of the gate plate will decrease significantly, and even leakage and other problems may occur. The protective plate body 142 is arranged on the thickened plate body 141, which improves the overall strength of the gate plate 14, and when the protective plate body 142 is damaged, the protective plate body 142 can be individually disassembled and replaced. At the same time, the plurality of positioning pins 144 on the side of the protective plate body 142 are respectively inserted into the plurality of positioning holes 143 on the thickened plate body 141, so that the thickened plate body 141 and the protective plate body 142 do not separate when moving vertically.

[0031] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings and specific embodiments in the specification.

[0032] Embodiment one

[0033] The embodiment of the utility model discloses a high-strength gate valve.

[0034] According to the drawings Figures 1-5As shown, including valve body unit 1 and set in valve body unit 1 above the lifting unit 2, valve body unit 1 includes:

[0035] Valve body 11, two valve body 11 symmetrically arranged, and two valve body 11 between the installation of the seal shell 12, valve body 11 and seal shell 12 between the formation of the activity cavity 13;

[0036] Gate 14, which is slidably arranged in the activity cavity 13, and the gate 14 can be vertically moved by using the lifting unit 2;

[0037] Gate 14 includes:

[0038] Thickened plate body 141, which is provided with a plurality of positioning holes 143 on the side surface;

[0039] The protective plate body 142 is closely abutted with the thickened plate body 141, and a plurality of positioning pins 144 are fixedly installed on the side close to the thickened plate body 141, and the plurality of positioning pins 144 are respectively inserted into the plurality of positioning holes 143.

[0040] Further, two valve body 11 and seal shell 12 are connected by bolts, and the valve body 11 is provided with a through communication hole.

[0041] In use, the gate 14 can be vertically moved by using the lifting unit 2, so as to control the on-off of the fluid in the valve body 11, and the protective plate body 142 arranged on the thickened plate body 141 improves the overall strength of the gate 14, and when the protective plate body 142 is damaged, the protective plate body 142 can be individually disassembled and replaced, and the plurality of positioning pins 144 on the side of the protective plate body 142 are respectively inserted into the plurality of positioning holes 143 on the thickened plate body 141, so that the thickened plate body 141 and the protective plate body 142 do not separate during vertical movement.

[0042] Embodiment two

[0043] The utility model embodiment discloses a high strength gate valve.

[0044] According to the accompanying Figures 1-5 As shown, including valve body unit 1 and set in valve body unit 1 above the lifting unit 2, valve body unit 1 includes:

[0045] Valve body 11, two valve body 11 symmetrically arranged, and two valve body 11 between the installation of the seal shell 12, valve body 11 and seal shell 12 between the formation of the activity cavity 13;

[0046] Gate 14, which is slidably arranged in the activity cavity 13, and the gate 14 can be vertically moved by using the lifting unit 2;

[0047] The gate plate 14 comprises:

[0048] The thickened plate body 141 is provided with a plurality of positioning holes 143 on the side surface thereof;

[0049] The protection plate body 142 is tightly abutted with the thickened plate body 141, and a plurality of positioning pins 144 are fixedly installed on the side of the thickened plate body 141, and the positioning pins 144 are respectively inserted into the positioning holes 143.

[0050] Further, the lifting unit 2 comprises:

[0051] The mounting seat 21 is fixedly installed on the top of the valve body 11 by means of bolts;

[0052] The fixed seat 22 is arranged above the mounting seat 21;

[0053] The screw rod 23 is rotationally connected with the fixed seat 22 at the top end thereof;

[0054] The nut block 24 is threadedly connected with the screw rod 23, and the side surface of the nut block 24 is fixedly connected with the lifting plate 25, and the bottom of the lifting plate 25 is fixedly connected with the thickened plate body 141.

[0055] Further, the bottom end of the lifting plate 25 is movably inserted into the mounting seat 21.

[0056] Further, the connecting plate 26 is fixedly connected between the mounting seat 21 and the fixed seat 22 by means of bolts.

[0057] Further, the top end of the screw rod 23 outwardly extends and is fixedly connected with the handle 27.

[0058] During use, the handle 27 is rotated to drive the screw rod 23 to rotate, and the nut block 24 is threadedly connected with the screw rod 23, so that the nut block 24 moves vertically, and the lifting plate 25 drives the thickened plate body 141 to move vertically in the movable cavity 13.

[0059] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength gate valve comprising a valve body unit (1) and a lifting unit (2) arranged above the valve body unit (1), characterized in that, The valve body unit (1) comprises: a valve body main body (11), two valve body main bodies (11) are symmetrically arranged, and a sealing shell (12) is arranged between the two valve body main bodies (11), and a movable cavity (13) is formed between the valve body main body (11) and the sealing shell (12); a shutter (14) is slidingly arranged in the movable cavity (13), and the shutter (14) can be vertically moved by using a lifting unit (2); the shutter (14) comprises: a thickened plate body (141) having a plurality of positioning holes (143) formed on the side surface thereof; a protection plate body (142) closely abutting against the thickened plate body (141), and a plurality of positioning pins (144) are fixedly arranged on the side of the protection plate body (142) close to the thickened plate body (141), and the plurality of positioning pins (144) are respectively inserted into the plurality of positioning holes (143).

2. A high strength gate valve according to claim 1, wherein The two valve body main bodies (11) and the sealing shell (12) are fixedly connected by bolts, and the valve body main body (11) is provided with a through communication hole.

3. A high strength gate valve according to claim 1, wherein The lifting unit (2) comprises: a mounting seat (21) fixedly mounted on the top of the valve body main body (11) by bolts; a fixed seat (22) arranged above the mounting seat (21); a lead screw (23) rotationally connected to the top of the fixed seat (22); a nut block (24) threadedly connected to the lead screw (23), and a lifting plate (25) fixedly connected to the side surface of the nut block (24), and the bottom of the lifting plate (25) is fixedly connected to the thickened plate body (141).

4. A high strength gate valve according to claim 3, wherein The bottom end of the lifting plate (25) is movably inserted into the mounting seat (21).

5. A high strength gate valve as defined in claim 3 wherein, The mounting seat (21) and the fixed seat (22) are fixedly connected by a connecting plate (26) through bolts.

6. A high strength gate valve as defined in claim 3 wherein, The top end of the lead screw (23) extends outwardly and is fixedly connected with a handle (27).

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