Quick mounting structure for gate valve

Abstract

The utility model relates to a gate valve quick installation structure which comprises a shell and a valve seat, the shell is of a T-shaped cylindrical three-way structure, the shell comprises passages arranged at the two opposite ends of the shell and passages arranged on the side wall of the shell, the valve seat is fixedly arranged in the passages on the side wall of the shell, a through hole coaxial with the shell is formed in the valve seat, a gate is arranged in the valve seat, and the valve seat is provided with a through hole. When the gate is closed, passages at the two ends of the shell can be blocked; the shell is divided into an upper shell and a lower shell along a plane which coincides with the axis of the shell and is perpendicular to the movement direction of the gate, and the upper shell and the lower shell are connected through a flange. On the two sides of the valve seat, the upper shell and the lower shell clamp and fix the pipeline in a cavity between the upper shell and the lower shell. The sluice valve can be installed without adding a screwed joint or a flange joint for the pipeline, and the situation that the sluice valve is installed after the pipeline is fixed can be coped with; when the gate valve needs to be disassembled in the later period, the pipeline does not need to be sawed off, and the gate valve can be disassembled by directly separating the upper shell and the lower shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to gate valve technical field especially a gate valve quick installation structure. BACKGROUND

[0002] The water inlet and the water outlet of the existing gate valve are usually connected with the pipeline by thread cooperation or flange cooperation, but for the pipeline with no thread joint and flange joint, or for the existing pipeline to be transformed to add the gate valve in the middle of the pipeline, the thread cooperation or flange cooperation needs to add the thread joint or flange joint to the pipeline first, which is not easy to construct.

[0003] In the solution to the above problems, a kind of pipeline quick installation gate valve is disclosed in Chinese invention patent CN201110151275.1, the outer periphery of the water inlet and the water outlet is connected with nut by thread, the inner bottom surface of nut is provided with tight ring, tight ring and sealing ring are in contact in axial direction, when nut is rotated, nut pushes sealing ring to move along axial direction by tight ring, so that sealing ring is pressed on the outer peripheral surface of water inlet pipe inserted into water inlet or water outlet pipe inserted into water inlet, to form sealed contact.

[0004] Although the above-mentioned disclosure file can install the gate valve without adding the thread joint or flange joint to the pipeline, because the pipeline at both ends is inserted into the inside of the gate valve, the gate valve can only be installed when the pipeline is not fixed, once the pipeline is fixed, the gate valve needs to be disassembled in the later period, then the pipeline needs to be sawn off, the construction amount is large, and the existing pipeline cannot be transformed to add the gate valve in the middle of the pipeline efficiently and quickly. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of gate valve quick installation structure, to solve the above-mentioned problems existing in prior art.

[0006] In order to solve the above-mentioned problems, the utility model provides a kind of gate valve quick installation structure, including shell and valve seat, shell is T-shaped barrel three-way structure, shell includes passageway at its opposite ends and passageway at its side wall, valve seat is fixedly arranged in the side wall passageway of shell, valve seat is provided with through hole coaxial with shell, valve seat is provided with gate, when gate is closed, the passageway at both ends of shell can be blocked;Shell is divided into upper shell and lower shell along the plane that coincides with its axis and is perpendicular to the direction of gate movement, upper shell and lower shell are flange connected;On both sides of valve seat, upper shell and lower shell clamp and fix pipeline in the cavity between them.

[0007] The gate valve quick installation structure provided by the utility model also has the following technical features:

[0008] Further, the inner wall of the passageway at both ends of the shell is provided with a sealing ring groove arranged along the circumference of the shell.

[0009] Further, metal gaskets are arranged at the connection between the upper shell and the lower shell.

[0010] Further, a sealing ring clamping groove is arranged on the metal gasket corresponding to the sealing ring groove, and the diameter of the sealing ring clamping groove is smaller than that of the sealing ring groove.

[0011] Further, multiple sealing ring grooves are arranged in the passageway at both ends of the shell.

[0012] Further, the upper shell and the lower shell are fixedly connected through flange protrusions at the connection between the two, and the flange protrusions extend outward from the side wall of the shell.

[0013] Further, the utility model also comprises a valve cover and a valve rod, and the shell, the valve seat and the valve cover are flange-connected at the passageway outlet of the side wall of the shell, and the valve rod is arranged in the valve cover and fixedly connected with the gate.

[0014] Further, the valve cover is rotatably and sealingly connected with the valve rod.

[0015] Further, the inner wall of the passageway at both ends of the shell is provided with a boss near the valve seat to abut against the end of the pipeline.

[0016] Further, the inner wall of the lower shell is abutted and connected with the bottom surface of the valve seat, and the abutted surfaces of the shell and the valve seat are provided with sealing gaskets.

[0017] The utility model has the following beneficial effects: the gate valve can be installed without adding threaded joints or flange joints to the pipeline, and the gate valve can be installed after the pipeline is fixed; when the gate valve needs to be disassembled in the later period, the pipeline does not need to be sawn off, and the gate valve can be disassembled by directly separating the upper shell and the lower shell, and the existing pipeline can be efficiently and quickly transformed to add the gate valve in the middle of the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a sectional view along the A-A line in Figure 1

[0020] Figure 3 It is a structure exploded view of Figure 1

[0021] Figure 4 It is a structure exploded view of the shell;

[0022] Figure 5 It is a detail view of B in Figure 3

[0023] In the drawing, the reference signs are as follows: shell 1, valve seat 2, gate 3, valve cover 4, valve rod 5.​​​

[0024] Upper shell 11, lower shell 12, metal gasket 13, flange 14, sealing ring groove 101, sealing ring clamping groove 102, boss 103. DETAILED DESCRIPTION

[0025] Hereinafter, the utility model will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] As Figures 1 to 5 shown in the embodiment of the quick installation structure of the gate valve of the utility model, the quick installation structure of the gate valve comprises a shell 1 and a valve seat 2, the shell 1 is a T-shaped cylindrical tee structure, the shell 1 comprises passages arranged at opposite ends thereof and a passage arranged at a side wall thereof, the passages at the two ends of the side wall of the shell 1 are water inlets and water outlets of the gate valve; the valve seat 2 is fixedly arranged in the side wall passage of the shell 1, a central through hole coaxial with the shell 1 is arranged on the side wall of the valve seat 2, a gate 3 is arranged in the valve seat 2, the gate 3 can move along the radial direction of the shell 1, the gate 3 gradually closes in the process of moving inward from the side wall passage of the shell 1, when the gate 3 is completely closed, the passages at the two ends of the central through hole of the valve seat 2 are blocked, that is, the passages between the two ends of the shell 1 are blocked, that is, the passages between the water inlets and the water outlets are blocked; when the gate 3 is closed, the medium in the valve cannot enter the inner cavity of the valve seat 2 any more, the gate 3 and the structures related thereto are prior art and will not be described herein.

[0027] In the embodiment, the shell 1 is divided into an upper shell 11 and a lower shell 12 along a plane coinciding with the axis of the shell 1 and perpendicular to the movement direction of the gate 3, and the upper shell 11 and the lower shell 12 are flange-connected; on both sides of the valve seat 2, the upper shell 11 and the lower shell 12 clamp and fix the pipeline in the cavity between them.

[0028] In this way, when the gate valve needs to be installed, it is not necessary to assemble threaded joints or flange joints for the pipeline, the lower shell 12 is directly detached from the upper shell 11, then the pipeline is placed on both sides of the valve seat 2, and finally the lower shell 12 is fixedly connected to the upper shell 11 through the flange, so that the clamping and fixing of the pipeline are completed, that is, the installation of the gate valve is completed.

[0029] The gate valve can be installed without adding threaded joints or flange joints for the pipeline, and the gate valve can be installed after the pipeline is fixed; when the gate valve needs to be disassembled in the later period, the pipeline does not need to be sawn off, the upper shell 11 and the lower shell 12 can be directly separated to complete the disassembly of the gate valve, and the existing pipeline can be efficiently and quickly transformed to add the gate valve in the middle of the pipeline, that is, the installation of the gate valve can be quickly and conveniently completed by simply sawing off a section of the existing pipeline.

[0030] In one embodiment of the present application, preferably, the inner wall of the passageway at both ends of the shell 1 is provided with a sealing ring groove 101 arranged along the circumference of the shell, and an O-shaped sealing ring (or other type of sealing ring) is installed in the sealing ring groove 101, so as to achieve sealing between the shell 1 and the pipeline.

[0031] In one embodiment of the present application, preferably, a metal gasket 13 is arranged between the upper shell 11 and the lower shell 12, and the shape of the metal gasket 13 is consistent with the connection between the upper shell 11 and the lower shell 12, so as to cope with higher torsion, to ensure the strength of the flange connection between the upper shell 11 and the lower shell 12, and to ensure the reliability of the sealing under the condition of ensuring the connection strength.

[0032] In one embodiment of the present application, preferably, the metal gasket 13 is provided with a sealing ring clamping groove 102 corresponding to the sealing ring groove 101, and the diameter of the sealing ring clamping groove 102 is smaller than that of the sealing ring groove 101; so that when the O-shaped sealing ring is installed in the sealing ring groove 101 and the upper shell 11 and the lower shell 12 are clamped and fixed to the pipeline, the O-shaped sealing ring directly abuts against the metal gasket 13, so as to ensure the sealing between the pipeline and the gap between the upper and lower parts of the shell 1, that is, to ensure the sealing effect of the gap between the O-shaped sealing ring and the metal gasket 13, to prevent the medium from overflowing from the gap between the O-shaped sealing ring and the metal gasket 13.

[0033] In one embodiment of the present application, preferably, multiple sealing ring grooves 101 are arranged in the passageway at both ends of the shell 1, to ensure better sealing effect.

[0034] In one embodiment of the present application, preferably, the upper shell 11 and the lower shell 12 are fixedly connected through the flange 14 at the connection between the upper shell 11 and the lower shell 12, and the flange 14 extends outward from the side wall of the shell 1, so that the flange 14 does not affect the installation process of the pipeline.

[0035] In one embodiment of the present application, preferably, it further comprises a valve cover 4 and a valve stem 5, the shell 1, the valve seat 2 and the valve cover 4 are flange-connected at the outlet of the passageway of the side wall of the shell 1, and the valve stem 5 is arranged in the valve cover 4 and is fixedly connected with the gate 3; so that, on the one hand, it ensures the effective sealing between the valve seat 2 and the shell 1 when the gate 3 is closed, and on the other hand, it ensures the effective sealing between the valve seat 2 and the shell 1, between the valve seat 2 and the valve cover 4, and between the shell 1 and the valve cover 4 when the gate 3 is opened.

[0036] In one embodiment of the present application, preferably, the valve cover 4 is rotatably connected with the valve stem 5, and the valve stem 5 can control the movement of the gate 3 to open or close the gate valve when it rotates, and the two are sealingly connected to ensure the effective sealing between the valve cover 4 and the valve stem 5 when the gate 3 is opened.

[0037] In one embodiment of the present application, preferably, the inner wall of the passageway at both ends of the shell 1 is provided with a boss 103 near the valve seat 2 to abut against the end of the pipe, i.e. to limit the pipe, so as to prevent the pipe from abutting against the valve seat 2 during installation and causing damage to the associated equipment, or from being displaced after installation and causing sealing failure.

[0038] In one embodiment of the present application, preferably, the inner wall of the lower shell 12 abuts against the bottom surface of the valve seat 2, and the abutting surface therebetween is provided with a sealing gasket, and the abutting surface between the upper shell 11 and the valve seat 2 is also provided with a sealing gasket, i.e. the abutting surface between the shell 1 and the valve seat 2 is provided with a radial sealing gasket, which is connected with the sealing gasket in the flange connection between the shell 1 and the valve seat 2, so as to ensure effective sealing between the water outlet and the water inlet when the gate 3 is closed.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A quick mounting structure of a gate valve, characterized by, The utility model relates to a valve, which comprises a shell (1) and a valve seat (2), the shell (1) is a T-shaped cylinder three-way structure, the shell (1) comprises passageways arranged at opposite ends thereof and a passageway arranged at a side wall thereof, the valve seat (2) is fixedly arranged in the passageway of the side wall of the shell (1), the valve seat (2) is provided with a through hole coaxial with the shell (1), a gate (3) is arranged in the valve seat (2), and the passageways at the two ends of the shell (1) can be blocked when the gate (3) is closed;The shell (1) is divided into an upper shell (11) and a lower shell (12) along a plane coinciding with the axis of the shell (1) and perpendicular to the movement direction of the gate (3), and the upper shell (11) and the lower shell (12) are flange-connected;On both sides of the valve seat (2), the upper shell (11) and the lower shell (12) clamp and fix a pipeline in the cavity between the two.

2. The gate valve quick mount structure of claim 1, wherein, The inner wall of the passageway at the two ends of the shell (1) is provided with a sealing ring groove (101) arranged along the circumferential direction of the shell.

3. The gate valve quick mount structure of claim 2, wherein, A metal gasket (13) is arranged between the upper shell (11) and the lower shell (12) and is consistent in shape with the connecting portion of the upper shell (11) and the lower shell (12).

4. The gate valve quick mount structure of claim 3, wherein, The metal gasket (13) is provided with a sealing ring clamping groove (102) corresponding to the sealing ring groove (101), and the diameter of the sealing ring clamping groove (102) is smaller than that of the sealing ring groove (101).

5. The quick mounting structure of a gate valve according to any one of claims 2 to 4, characterized in that, A plurality of sealing ring grooves (101) are arranged in the passageways at the two ends of the shell (1).

6. The gate valve quick mount structure of claim 1, wherein, The upper shell (11) and the lower shell (12) are fixedly connected through a flange (14) at the connecting portion of the two, and the flange (14) extends outward from the side wall of the shell (1).

7. The gate valve quick mount structure of claim 1, wherein, The utility model further comprises a valve cover (4) and a valve rod (5), the shell (1), the valve seat (2) and the valve cover (4) are flange-connected at the outlet of the passageway of the side wall of the shell (1), and the valve rod (5) is arranged in the valve cover (4) and is fixedly connected with the gate (3).

8. The gate valve quick mount structure of claim 6, wherein, The valve cover (4) is rotatably and sealingly connected with the valve rod (5).

9. The gate valve quick mount structure of claim 1, wherein, The inner wall of the passageway at the two ends of the shell (1) is provided with a boss (103) close to the valve seat (2) to abut against the end of the pipeline.

10. The gate valve quick mount structure of claim 1, wherein, The inner wall of the lower shell (12) is connected with the bottom surface of the valve seat (2), and the abutting surfaces of the shell (1) and the valve seat (2) are provided with sealing gaskets.

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