High-strength check valve for pipeline

Abstract

The utility model relates to the field of check valves, and discloses a high-strength check valve for pipelines, which comprises a water inlet pipe, one end of the water inlet pipe is fixedly connected with a flange, the other end of the water inlet pipe is fixedly connected with a working pipe, one end of the working pipe is fixedly connected with a water outlet pipe, and the inner wall of the water outlet pipe is fixedly connected with a plurality of fixing columns. One end of the fixing column is fixedly connected with a fixing disc, a reciprocating assembly is arranged in the fixing disc, one end of the water inlet pipe is slidably connected with a first sealing ring, a plurality of fixing grooves are formed in one side of the first sealing ring, a sealing assembly is arranged on one side of the first sealing ring, and the sealing assembly comprises the reciprocating disc and a plurality of fixing blocks. According to the high-strength check valve for the pipeline, the detachable sealing ring and the detaching device are additionally arranged, the effect that when the sealing performance of equipment is reduced, only a new sealing ring needs to be replaced is achieved, the problem that when the sealing performance of the equipment is reduced, only a new check valve needs to be replaced for continuous use is solved, and the high efficiency of the high-strength check valve for the pipeline is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve field especially, it relates to a high strength check valve for pipeline. BACKGROUND

[0002] Check valve is a kind of automatic valve, it can prevent the medium in pipeline from flowing back, its use is mainly to ensure that medium can only flow in one direction, avoid backflow to cause equipment damage, medium pollution and other problems, simultaneously in some specific systems, such as water supply system, hydraulic system etc., check valve can protect the safe operation of equipment and pipeline, and in certain process, medium needs to flow in specific direction, check valve can guarantee the normal process.

[0003] The working principle of the existing high-strength check valve for pipeline is that when the medium flows, the fluid pressure acts on the valve disc to make the valve disc rotate around the rotating shaft to open, and the medium flows smoothly, the valve disc is disc-shaped, rotates around the rotating shaft of the valve seat channel, and the valve channel is streamline-shaped, when the medium flows back, the fluid pressure and the weight of the valve disc act together to make the valve disc rotate to close, thereby cutting off the medium flow and preventing backflow, to ensure that the valve disc can reach the appropriate position of the valve seat surface each time, the valve disc is connected through a hinge mechanism to have sufficient rotation space, ensure that the valve disc is in full contact with the valve seat, and achieve good sealing effect.

[0004] However, in the actual use process of the high-strength check valve for pipeline, there are certain problems, that is, the gradual decline in equipment sealing during equipment use cannot be effectively solved, which leads to normal use, in this case, people often have to replace the new check valve to continue to maintain its normal use, which undoubtedly brings many inconveniences and additional cost to the user, seriously affects the efficiency of the high-strength check valve for pipeline, makes it unable to fully play its due role in practical application, and to a certain extent, limits its further promotion and application. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a high-strength check valve for pipeline, which aims to improve the problem that only new check valves can be replaced to continue to use because of the decline in equipment sealing during equipment use.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A high-strength check valve for pipeline, including inlet pipe, the flange is fixedly connected to one end of inlet pipe, the working pipe is fixedly connected to the other end of inlet pipe, the water outlet pipe is fixedly connected to one end of working pipe, the fixed column is fixedly connected to the inner wall of water outlet pipe, the fixed disc is fixedly connected to one end of fixed column, the reciprocating assembly is arranged in fixed disc, the sealing ring no.

[0007] The sealing assembly includes a reciprocating disc and a plurality of fixed blocks, one side of the reciprocating disc is slidably connected to one end of the inlet pipe, one side of the plurality of fixed blocks is fixedly connected to one side of the reciprocating disc, and the outer wall of the fixed block is slidably connected inside the fixed groove.

[0008] Further description of the above technical scheme:

[0009] The reciprocating assembly includes a connecting column and a spring, one end of the connecting column is slidably connected inside the fixed disc, the other end of the connecting column is fixedly connected to one side of the reciprocating disc, the spring is sleeved on the outer wall of the connecting column, one end of the spring is fixedly connected to one side of the fixed disc, and the other end of the spring is fixedly connected to one side of the reciprocating disc.

[0010] Further description of the above technical scheme:

[0011] One side of the working pipe is fixedly connected with a repair pipe, and the sealing ring no.

[0012] Further description of the above technical scheme:

[0013] One side of the repair pipe is fixedly connected with a connecting block no.

[0014] Further description of the above technical scheme:

[0015] The outer wall of the rotating shaft is rotatably connected with a connecting block no.

[0016] Further description of the above technical scheme:

[0017] The inner wall of the sealing cover is fixedly connected with a sealing ring no.

[0018] Further description of the above technical scheme:

[0019] One side of the repair pipe is fixedly connected with a fixed strip, and one end of the fixed strip is rotatably connected with a fixed shaft.

[0020] Further description of the above technical scheme:

[0021] The fixed shaft outer wall is fixedly connected with a screw rod, and the screw rod outer wall is threadedly connected with a nut.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the sealing ring can be disassembled by sliding in the fixed groove and the fixed block, so that when the equipment sealing performance decreases, the sealing ring can be disassembled by using the disassembly device, and then a new sealing ring can be installed, thereby solving the problem that when the equipment sealing performance decreases, only a new check valve can be replaced for continuous use, and the efficiency of the high-strength check valve for pipelines is improved.

[0024] 2. In the utility model, the sealing cover can be easily opened by cooperation of the screw rod and the nut, so that when the equipment needs to be overhauled, the sealing cover can be lifted after being unlocked by the fixing device, and the overhauling can be performed, thereby solving the problem that when the equipment needs to be overhauled, the operator needs to completely disassemble the equipment before maintenance, and the convenience of the high-strength check valve for pipelines is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A perspective view of a high-strength check valve for pipelines is provided for the utility model;

[0026] Figure 2 A reciprocating disc explosion structure schematic view of a high-strength check valve for pipelines is provided for the utility model;

[0027] Figure 3 A working pipe explosion structure schematic view of a high-strength check valve for pipelines is provided for the utility model;

[0028] Figure 4 A sealing cover structure schematic view of a high-strength check valve for pipelines is provided for the utility model.

[0029] LEGEND:

[0030] 1, water inlet pipe; 2, flange; 3, working pipe; 4, water outlet pipe; 5, fixed column; 6, fixed disc; 7, connecting column; 8, spring; 9, reciprocating disc; 10, fixed block; 11, sealing ring one; 12, fixed groove; 13, maintenance pipe; 14, sealing ring two; 15, connecting block one; 16, rotating shaft; 17, connecting block two; 18, sealing cover; 19, sealing ring three; 20, connecting strip; 21, fixed strip; 22, fixed shaft; 23, screw rod; 24, nut. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0032] With reference to Figures 1-3 The utility model provides an embodiment: a pipeline is with high strength check valve, including inlet pipe 1, inlet pipe 1 one end fixedly connected with flange 2, inlet pipe 1 is the main channel of water inlet, its one end passes through flange 2 and is connected with external pipeline, and it is convenient to install and dismount, inlet pipe 1 other end fixedly connected with working pipe 3, is used for water delivery to outlet pipe 4, working pipe 3 one end fixedly connected with outlet pipe 4, the inner wall of outlet pipe 4 is fixedly connected with a plurality of fixed column 5, plays the role of fixed and support, fixed column 5 one end fixedly connected with fixed disc 6, provides the installation position for reciprocating assembly, fixed disc 6 inside is provided with reciprocating assembly, inlet pipe 1 one end slidingly connected with sealing ring no. 1 11, plays the role of sealing, prevents water leakage, sealing ring no. 1 11 one side is provided with a plurality of fixed slots 12, sealing ring no. 1 11 one side is provided with sealing assembly;

[0033] Sealing assembly includes reciprocating disc 9 and a plurality of fixed blocks 10, reciprocating disc 9 one side slidingly connected in inlet pipe 1 one end, reciprocating disc 9 is used to intercept the backflow water, a plurality of fixed blocks 10 one side fixedly connected in reciprocating disc 9 one side, fixed block 10 outer wall slidingly connected in fixed slot 12 inside, fixed block 10 and fixed slot 12 cooperate and fix sealing ring no. 1 11, reciprocating assembly includes connecting column 7 and spring 8, connecting column 7 one end slidingly connected in fixed disc 6 inside, connecting column 7 other end fixedly connected in reciprocating disc 9 one side, spring 8 is sleeved in connecting column 7 outer wall, provides the elastic force for reciprocating disc 9 movement, spring 8 one end fixedly connected in fixed disc 6 one side, spring 8 other end fixedly connected in reciprocating disc 9 one side.

[0034] Specifically, when water flow pours into inlet pipe 1, water pressure will quickly extrude reciprocating disc 9 to the inside, in this process, spring 8 will also be extruded, and then elastic deformation is generated, and then connecting column 7 is gradually pressed into the inside of fixed disc 6, so that conditions are created for the smooth flow of water, so that water flow can flow smoothly into working pipe 3, and then flow out through outlet pipe 4, and when water flow backflows, the backflow water flow will first collect in outlet pipe 4, at this time, the backflow water flow will generate a pushing force to push reciprocating disc 9 to move back, under the action of the force, reciprocating disc 9 will quickly push back, thereby tightly blocking inlet pipe 1, effectively preventing water flow backflow, and ensuring the normal operation and safety of the pipeline system.

[0035] Reference Figure 4 , one side of the working pipe 3 is fixedly connected with a maintenance pipe 13, in order to facilitate the maintenance and maintenance of the pipeline system, the top of the maintenance pipe 13 is fixedly connected with a sealing ring two 14, which ensures the sealing property when the maintenance pipe 13 is connected with other components, one side of the maintenance pipe 13 is fixedly connected with a connecting block one 15, the connecting block one 15 is rotatably connected with a rotating shaft 16 inside, the rotating shaft 16 is rotatably connected with a connecting block two 17 outside, the connecting block one 15 and the connecting block two 17 are connected through the rotating shaft 16, so that the sealing cover 18 can be relatively rotated, which is convenient for opening and closing the maintenance pipe 13, one end of the connecting block two 17 is fixedly connected with a sealing cover 18, the sealing cover 18 is fixedly connected with a sealing ring three 19 inside, which further enhances the sealing effect and prevents liquid leakage, one side of the sealing cover 18 is fixedly connected with a connecting strip 20, which facilitates the operation of the sealing cover 18, one side of the maintenance pipe 13 is fixedly connected with a fixed strip 21, one end of the fixed strip 21 is rotatably connected with a fixed shaft 22, the fixed shaft 22 is fixedly connected with a screw rod 23 outside, the screw rod 23 is threadedly connected with a nut 24 outside, and the fixed strip 21, the fixed shaft 22, the screw rod 23 and the nut 24 play a role in fixing the sealing cover 18, which ensures that the sealing cover 18 can be kept stable and sealed in the closed state.

[0036] Specifically, when the working pipe 3 needs to be overhauled, the operator will slowly unscrew the nut 24, as the nut 24 is gradually unscrewed, the screw rod 23 is no longer restricted by the fastening force, then the operator will rotate the screw rod 23, so that it is rotated to the lower side through the fixed shaft 22, which creates conditions for opening the maintenance pipe 13, next, the operator lifts the sealing cover 18 by means of the flexible rotation of the rotating shaft 16, in the process of lifting, the sealing cover 18 slowly separates from the opening of the maintenance pipe 13, finally, the operator places the sealing cover 18 stably aside, which leaves space for the internal overhaul of the working pipe 3, at this time, the internal structure of the working pipe 3 is clearly presented in front of the eyes, the inspector can carefully check and maintain the internal condition of the working pipe 3, which ensures the normal operation and efficient work of the pipeline system.

[0037] Working principle: in the process of using the pipeline with high-strength check valve, when the water flow from the inlet pipe 1, the water pressure will be quickly squeezed to the inside of the reciprocating disc 9, in the process, the spring 8 will be squeezed, and then the connecting column 7 is gradually pressed into the inside of the fixed disc 6, so as to create conditions for the smooth flow of water, so that the water flow can flow smoothly into the working pipe 3, and then flow out through the outlet pipe 4, when the water flow backflow occurs, the backflow of water flow will first gather in the outlet pipe 4, at this time, the backflow of water flow will produce a pushing force, push the reciprocating disc 9 back, under the action of the force, the reciprocating disc 9 will be quickly pushed back, thereby tightly blocking the inlet pipe 1, effectively preventing the backflow of water, ensuring the normal operation and safety of the pipeline system, when the working pipe 3 needs to be overhauled, the operator will first slowly unscrew the nut 24, as the nut 24 is gradually unscrewed, the screw rod 23 is no longer bound by the fastening force, then the operator will rotate the screw rod 23, so that it is rotated to the lower part through the fixed shaft 22, to create conditions for opening the maintenance pipe 13, next, the operator rotates the rotating shaft 16 flexibly, lifts the sealing cover 18, in the process of lifting, the sealing cover 18 slowly separates from the opening of the maintenance pipe 13, finally, the operator places the sealing cover 18 stably on the side, to create space for the internal overhaul of the working pipe 3, at this time, the internal structure of the working pipe 3 is clearly presented in front of the eyes, the maintenance personnel can carefully check and maintain the internal condition of the working pipe 3, to ensure the normal operation and efficient work of the pipeline system.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A high strength check valve for pipes comprising a water inlet pipe (1), characterized in that: The water inlet pipe (1) one end is fixedly connected with flange (2), the water inlet pipe (1) the other end is fixedly connected with working pipe (3), the working pipe (3) one end is fixedly connected with water outlet pipe (4), the water outlet pipe (4) inner wall is fixedly connected with a plurality of fixed column (5), the fixed column (5) one end is fixedly connected with fixed disc (6), the fixed disc (6) is provided with reciprocating assembly inside, the water inlet pipe (1) one end is slidably connected with sealing ring one (11), the sealing ring one (11) one side is provided with a plurality of fixed slots (12), the sealing ring one (11) one side is provided with sealing assembly; The sealing assembly includes reciprocating disc (9) and a plurality of fixed blocks (10), the reciprocating disc (9) one side is slidably connected in water inlet pipe (1) one end, a plurality of the fixed block (10) one side is fixedly connected in reciprocating disc (9) one side, the fixed block (10) outer wall is slidably connected in fixed slot (12) inside.

2. A high-strength check valve for use in a pipe according to claim 1, characterized in that: The reciprocating assembly includes connecting column (7) and spring (8), the connecting column (7) one end is slidably connected in fixed disc (6) inside, the connecting column (7) the other end is fixedly connected in reciprocating disc (9) one side, the spring (8) is sleeved in connecting column (7) outer wall, the spring (8) one end is fixedly connected in fixed disc (6) one side, the spring (8) the other end is fixedly connected in reciprocating disc (9) one side.

3. A high-strength check valve for use in a pipe according to claim 1, characterized in that: The working pipe (3) one side is fixedly connected with maintenance pipe (13), the maintenance pipe (13) top is fixedly connected with sealing ring two (14).

4. A high-strength check valve for use in a pipe according to claim 3, characterized in that: The maintenance pipe (13) one side is fixedly connected with connecting block one (15), the connecting block one (15) is rotatably connected with rotating shaft (16) inside.

5. A high-strength check valve for use in a pipe according to claim 4, characterized in that: The rotating shaft (16) outer wall is rotatably connected with connecting block two (17), the connecting block two (17) one end is fixedly connected with sealing cover (18).

6. A high-strength check valve for use in a pipe according to claim 5, characterized in that: The sealing cover (18) inner wall is fixedly connected with sealing ring three (19), the sealing cover (18) one side is fixedly connected with connecting strip (20).

7. A high-strength check valve for use in a pipe according to claim 3, characterized in that: The maintenance pipe (13) one side is fixedly connected with fixed strip (21), the fixed strip (21) one end is rotatably connected with fixed shaft (22).

8. A high-strength check valve for use in a pipe according to claim 7, characterized in that: The fixed shaft (22) outer wall is fixedly connected with screw rod (23), the screw rod (23) outer wall is threadedly connected with nut (24).

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