Gate valve with sealing structure in middle

Abstract

The utility model relates to the field of gate valves, and discloses a gate valve with a sealing structure in the middle, which comprises a gate valve body, output and input ends are arranged on the left side and the right side of the gate valve body, pipelines are slidably connected to the inner walls of the output and input ends, fixing rings are fixedly connected to the outer sides of the output and input ends, and rotating rings are rotatably connected to the outer parts of the fixing rings. The inner wall of the rotating ring is fixedly connected with a rope, the rope is sleeved with a spring, the inner side of the spring is fixedly connected with a baffle, the inner side of the baffle is fixedly connected with a fixing block, a sealing assembly is installed in the input and output end, the sealing assembly is used for sealing the connector, and the sealing assembly comprises a fixing base and a sealing ring. According to the gate valve, the rotating ring is rotated to drive the rope to pull the baffle to compress the spring, so that the fixing block is retracted into the fixing ring, the gate valve body and the pipeline can be rapidly assembled and disassembled, time and labor are saved, operation is easy, and working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the gate valve field especially a kind of gate valve with sealing structure in middle. BACKGROUND

[0002] Gate valve is a kind of valve for controlling fluid flow, widely used in petroleum, chemical industry, water treatment and other industries, its main function is to open and close fluid passage to realize the regulation of flow, the structure of gate valve is usually composed of valve body, valve clapper, valve stem and sealing surface etc., its working principle is to open or close valve by the up-down movement of valve clapper, the sealing surface contact between valve clapper and valve seat realizes the isolation of fluid, the main advantage of gate valve is that fluid resistance is small, switch quickly, suitable for full open or full close working condition, and not suitable for flow regulation.

[0003] According to the difference of design and use material, gate valve can be divided into multiple types, such as cast iron gate valve, stainless steel gate valve and plastic gate valve etc., when installing, usually adopt horizontal or vertical direction, specific to depend on the nature of fluid and use environment, since gate valve sealing surface is susceptible to wear, it is suggested to check and maintain regularly, gate valve should avoid frequent opening and closing during operation to prolong its service life, in general, gate valve is an important fluid control equipment, its good sealing property and stable performance make it widely used in industrial field.

[0004] When installing gate valve, the traditional fixing mode is to fix and connect gate valve and pipeline by nut bolt cooperation auxiliary tool, but this installation mode is low in efficiency, cannot be installed quickly, time-consuming and laborious, to solve the above problems, a kind of gate valve with sealing structure in middle is proposed. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of gate valve with sealing structure in middle, to improve the problem that traditional fixing mode is to fix and connect gate valve and pipeline by nut bolt cooperation auxiliary tool, but this installation mode is low in efficiency, cannot be installed quickly, time-consuming and laborious.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of gate valve with sealing structure in middle, including gate valve body, the left and right sides of the gate valve body are all provided with output and input end, the inner wall of the output and input end is slidably connected with pipeline, the outer side of the output and input end is fixedly connected with fixed ring, the outer portion of the fixed ring is rotatably connected with swivel ring, the inner wall of the swivel ring is fixedly connected with rope, the outer portion of the rope is sleeved with spring, the inner side of the spring is fixedly connected with baffle, the inner side of the baffle is fixedly connected with fixed block, the inside of the output and input end is installed with sealing assembly, the sealing assembly is used to seal interface.

[0007] As further description of the above technical scheme:

[0008] The sealing assembly comprises a fixed seat and a sealing ring, the bottom of the fixed seat is fixedly connected to the top of the input and output end, a wire disc is rotatably connected to the outside of the fixed seat, a bolt is screwedly connected to the inside of the fixed seat, the outside of the bolt abuts against the top of the wire disc, a rotating cover is inserted into the top of the wire disc, a steel cable is fixedly connected to the outside of the wire disc, and the sealing ring is fixedly connected to the inside of the input and output end.

[0009] As a further description of the above technical solution:

[0010] The rope is slidably connected to the inside of the fixed ring, and the rope is fixedly connected to the outside of the baffle.

[0011] As a further description of the above technical solution:

[0012] The spring is fixedly connected to the inside of the fixed ring, and the baffle is slidably connected to the inside of the fixed ring.

[0013] As a further description of the above technical solution:

[0014] The fixed block is slidably connected to the inside of the fixed ring, and the fixed block is inserted into the inside of the input and output end.

[0015] As a further description of the above technical solution:

[0016] The rotating ring is externally provided with anti-skid lines one.

[0017] As a further description of the above technical solution:

[0018] The rotating cover is externally provided with anti-skid lines two, and the sealing ring abuts against the pipeline.

[0019] As a further description of the above technical solution:

[0020] The sealing ring is externally sleeved on the inside of the steel cable, and the steel cable is slidably connected to the inside of the input and output end.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a rotating ring is rotated, and the rope is pulled to drive the baffle to compress the spring, and the fixed block is collected into the fixed ring, realizes the installation and dismounting of the gate valve body and the pipeline can be quickly carried out, saves time and labour, and the operation is simple, and the working efficiency is effectively improved.

[0023] 2、The utility model discloses a rotating cover is rotated wire disc, and the wire disc is pulled to the steel cable and is tightly pressed to the sealing ring, and after being tightly pressed, the wire disc is fixed by rotating the bolt, realizes the sealing of the interface, prevents the unnecessary trouble caused by the water leakage. DRAWINGS

[0024] Figure 1 A three-dimensional schematic view of a gate valve with a sealing structure in the middle is provided for the utility model;

[0025] Figure 2 A structure schematic view of a fixed block of a gate valve with a sealing structure in the middle is provided for the utility model;

[0026] Figure 3 A structure schematic view of a wire coil of a gate valve with a sealing structure in the middle is provided for the utility model;

[0027] Figure 4 A structure schematic view of a pipeline of a gate valve with a sealing structure in the middle is provided for the utility model.

[0028] Legend:

[0029] 1, gate valve body; 2, input and output end; 3, pipeline; 4, fixed ring; 5, rotating ring; 6, rope; 7, spring; 8, baffle; 9, fixed block; 10, fixed seat; 11, wire coil; 12, bolt; 13, rotating cover; 14, steel cable; 15, sealing ring; 16, anti-skid pattern one; 17, anti-skid pattern two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Refer to Figure 1 - Figure 4This utility model provides an embodiment of a gate valve with an intermediate sealing structure, comprising a gate valve body 1. The gate valve body 1 opens and closes by rotating a threaded rod on the valve body. Both sides of the gate valve body 1 are provided with inlet and outlet ends 2, which are the output and input ends of the gate valve body 1, respectively. A pipe 3 is slidably connected to the inner wall of the inlet and outlet ends 2. The pipe 3 is used for transporting liquids or gases. A fixed ring 4 is fixedly connected to the outer side of the inlet and outlet ends 2. A rotating ring 5 is rotatably connected to the outer side of the fixed ring 4. A rope 6 is fixedly connected to the inner wall of the rotating ring 5. A spring 7 is sleeved on the outer side of the rope 6. A baffle 8 is fixedly connected to the inner side of the spring 7. A fixed block 9 is fixedly connected to the inner side of the baffle 8. The fixed ring 4 is used to connect and limit other parts. The rotating ring 5 encloses the fixed ring 4 and is connected to the rope 6 for easy manual rotation. The rope 6 is used to pull the baffle 8 to move. The spring 7 is used to automatically reset the fixed block 9. The fixed block 9 limits the movement of the inlet and outlet ends 2. The device can only move in the designated direction and will not move or shake randomly. A baffle 8 is fixed on its outer side to prevent the fixing block 9 from falling off due to exceeding the range of movement. A sealing component is installed inside the input / output end 2 to seal the interface. The rope 6 is externally slidably connected to the inside of the fixing ring 4, and the inner side of the rope 6 is fixedly connected to the outside of the baffle 8. Under the condition of the input / output end 2, it is ensured that the rope 6 can pull the baffle 8 to move correctly. The spring 7 is externally fixedly connected to the inside of the fixing ring 4 to ensure that the spring 7 remains stable. The baffle 8 is externally slidably connected to the inside of the fixing ring 4, and the fixing block 9 is externally slidably connected to the inside of the fixing ring 4. The fixing ring 4 restricts the movement direction of both the baffle 8 and the fixing block 9, ensuring that it can only move in the designated direction and will not move or shake randomly. The fixing block 9 is externally inserted into the inside of the input / output end 2 to fix the pipe 3 and achieve fixation. The rotating ring 5 has anti-slip texture 16 on its outer side to facilitate manual rotation of the rotating ring 5.

[0032] Reference Figure 1 - Figure 4The sealing assembly comprises a fixed seat 10 and a sealing ring 15, the fixed seat 10 is fixedly connected at the top of the input and output end 2, a wire reel 11 is rotatably connected outside the fixed seat 10, a bolt 12 is threadedly connected inside the fixed seat 10, the bolt 12 abuts against the top of the wire reel 11, a rotating cover 13 is inserted into the top of the wire reel 11, a steel cable 14 is fixedly connected outside the wire reel 11, the sealing ring 15 is fixedly connected inside the input and output end 2, anti-skid lines 17 are formed outside the rotating cover 13, the fixed seat 10 is used in cooperation with the bolt 12 to fix the wire reel 11, the wire reel 11 is used to tighten the steel cable 14 and make the sealing ring 15 adhere to the pipeline 3, the rotating cover 13 is used to drive the wire reel 11 to rotate, the steel cable 14 is used to tightly hold the sealing ring 15, the sealing ring 15 tightly adheres to the pipeline 3 to realize sealing, the anti-skid lines 17 are used to facilitate the rotation of the rotating cover 13 and avoid slipping, the sealing ring 15 abuts against the pipeline 3, the sealing ring 15 is sleeved outside the steel cable 14, and the steel cable 14 is slidably connected inside the input and output end 2 and is limited by the input and output end 2 to pull the sealing ring 15 to hold the pipeline 3 outside.

[0033] Working principle: when the device is used, the gate valve body 1 is first fixed on the specified pipeline 3, the rotating ring 5 is rotated to drive the rope 6 to pull the baffle 8 to compress the spring 7, drive the fixed block 9 to retract into the fixed ring 4, then the pipeline 3 is inserted into the input and output end 2, at this time, the rotating ring 5 is released, the spring 7 pushes the baffle 8 to push the fixed block 9 out and insert into the pipeline 3 to realize fixation, then the rotating cover 13 is rotated to drive the wire reel 11 to rotate, the wire reel 11 pulls the steel cable 14 to wind the steel cable 14 into the wire reel 11, the steel cable 14 is retracted in the input and output end 2 and is more and more tight, the sealing ring 15 is tightly held outside the pipeline 3 to realize sealing, then the bolt 12 is rotated to make the bolt 12 downwardly press and contact the top of the wire reel 11 to tightly fix the wire reel 11 and avoid loosening, and the other side is also installed in the same way, at this time, the device can be normally used, the operation is simple and the installation is convenient, and the dismounting efficiency is effectively improved.

[0034] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gate valve with an intermediate sealing structure, comprising a gate valve body (1), characterized in that: The gate valve body (1) is provided with an input / output end (2) on both the left and right sides. The inner wall of the input / output end (2) is slidably connected to a pipe (3). The outer side of the input / output end (2) is fixedly connected to a fixing ring (4). The outer side of the fixing ring (4) is rotatably connected to a rotating ring (5). The inner wall of the rotating ring (5) is fixedly connected to a rope (6). The outer side of the rope (6) is fitted with a spring (7). The inner side of the spring (7) is fixedly connected to a baffle (8). The inner side of the baffle (8) is fixedly connected to a fixing block (9). The input / output end (2) is equipped with a sealing component, which is used to seal the interface.

2. A gate valve with an intermediate sealing structure according to claim 1, characterized in that: The sealing assembly includes a fixed base (10) and a sealing ring (15). The bottom of the fixed base (10) is fixedly connected to the top of the input / output end (2). A wire spool (11) is rotatably connected to the outside of the fixed base (10). A bolt (12) is threadedly connected inside the fixed base (10). The bolt (12) abuts against the top of the wire spool (11). A rotating cover (13) is inserted into the top of the wire spool (11). A steel cable (14) is fixedly connected to the outside of the wire spool (11). The sealing ring (15) is fixedly connected to the inside of the input / output end (2).

3. A gate valve with an intermediate sealing structure according to claim 1, characterized in that: The rope (6) is externally slidably connected inside the fixed ring (4), and the inner side of the rope (6) is fixedly connected to the outer side of the baffle (8).

4. A gate valve with an intermediate sealing structure according to claim 1, characterized in that: The spring (7) is fixedly connected to the inside of the fixed ring (4) on the outside, and the baffle (8) is slidably connected to the inside of the fixed ring (4) on the outside.

5. A gate valve with an intermediate sealing structure according to claim 1, characterized in that: The fixing block (9) is externally slidably connected to the inside of the fixing ring (4), and the fixing block (9) is externally inserted into the inside of the input / output terminal (2).

6. A gate valve with an intermediate sealing structure according to claim 1, characterized in that: The rotating ring (5) has anti-slip texture (16) on its outside.

7. A gate valve with an intermediate sealing structure according to claim 2, characterized in that: The outer surface of the rotating cover (13) is provided with anti-slip texture II (17), and the sealing ring (15) and the pipe (3) abut against each other.

8. A gate valve with an intermediate sealing structure according to claim 2, characterized in that: The sealing ring (15) is sleeved on the inside of the steel cable (14), and the steel cable (14) is slidably connected to the inside of the input / output end (2).

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