CN216843323U - Stable sealing check valve based on pipeline transportation - Google Patents

Abstract

The utility model discloses a stable sealing type check valve based on pipeline transportation, which belongs to the technical field of check valves, the utility model comprises a check valve body, fixed plates are fixedly arranged at both ends of a flange, a spring telescopic rod is fixedly arranged at one end of the fixed plate, an installation block is fixedly arranged at one end of the spring telescopic rod, a rotating block is embedded and arranged at one end inside the installation block, a rotating plate is fixedly arranged at one end of the rotating block, a positioning cylinder is fixedly arranged at one end of the rotating plate, a fixing screw rod is fixedly arranged at one end of the installation block, compared with the prior art, the utility model has the advantages that the problem that the flange shakes in the installation process is avoided, and the phenomenon that the installation hole is misplaced is further caused, the problem that the flange is inconvenient to install is caused, the efficiency of the installation flange is further improved, and the difficulty of the installation flange is reduced, and the flange can be secondarily connected and fixed, so that the stability of flange connection is further ensured.

Description

Stable sealing check valve based on pipeline transportation

technical field

The utility model relates to the technical field of check valves, in particular to a stable sealing check valve based on pipeline transportation.

Background technique

Check valve refers to a valve whose opening and closing parts are circular discs and act by its own weight and medium pressure to block the backflow of the medium. It is an automatic valve, also known as check valve, one-way valve, return valve or Isolation valve, the disc movement mode is divided into lift type and swing type. The lift type check valve is similar in structure to the globe valve, but only lacks the valve stem that drives the valve disc. The medium flows in from the inlet end (lower side) and flows from the outlet end ( The upper side) flows out. When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the valve is opened. On the contrary, the valve is closed when the medium flows back. The swing check valve has a valve that is inclined and can rotate around the axis. The working principle is similar to that of the lift check valve. The check valve is often used as the bottom valve of the pumping device, which can prevent the backflow of water. The combination of the check valve and the stop valve can play a role in safety isolation.

In a high-pressure check valve with good sealing proposed by the application number 202120644285.8, the water will be discharged into the water flow channel through the water inlet channel, the protection plate can provide a certain buffering effect, and then the water will squeeze the blocking block , the choke block is forced to squeeze the connecting rod, which can drive the choke block to move upward, and the water can be discharged through the water outlet channel on the right side. When the pressure is insufficient, the spring will reset due to the rebound force, driving the choke block to move downward. , to achieve the function of blocking flow, which can prevent backflow.

However, during the installation process of the check valve, the staff needs to hold the check valve, which leads to the problem of movement and shaking of the check valve during the installation process, which leads to the dislocation of the installation holes on the flange, which leads to The problem of inconvenient installation of the check valve appears, resulting in the problem of low installation efficiency of the check valve.

Utility model content

The purpose of the present invention is to provide a stable and sealed check valve based on pipeline transportation, so as to solve the problem that during the installation process of the check valve proposed in the above-mentioned background art, the check valve needs to be hand-held by the staff, resulting in that during the installation process, The check valve is prone to movement and shaking, which in turn leads to the dislocation of the mounting holes on the flange, which leads to the problem of inconvenient installation of the check valve and the problem of low installation efficiency of the check valve.

In order to solve the above technical problems, the present utility model provides the following technical solutions: a stable and sealed check valve based on pipeline transportation, including a check valve body, both ends of the check valve body are welded with flanges, and one end of the flange is A fixed positioning assembly is installed, and the fixed positioning assembly is mainly composed of a positioning cylinder, a fixed screw, a nut, a spring telescopic rod and a rotating plate for driving the fixed positioning cylinder;

A sealing assembly is installed on the outside of the flange, and the sealing assembly is mainly composed of a moving ring, a rubber ring and a moving screw used for driving.

Preferably, the fixed positioning assembly includes a fixed plate, a spring telescopic rod, a mounting block, a rotating block, a rotating plate, a positioning cylinder, a fixed screw and a nut;

Both ends of the flange are fixedly installed with a fixed plate, one end of the fixed plate is fixedly installed with a spring telescopic rod, one end of the spring telescopic rod is fixedly installed with a mounting block, and one end of the mounting block is embedded with a rotating block, so the A rotating plate is fixedly installed at one end of the rotating block, a positioning cylinder is fixedly installed at one end of the rotating plate, a fixing screw is fixedly installed at one end of the installation block, and a nut is connected to the outer side of the fixing screw through a thread.

Preferably, the installation block is provided with a rotation slot at a position corresponding to the rotation block, the rotation block is movably embedded in the rotation slot, and the outer diameter of the rotation block is equal to the inner diameter of the rotation slot.

Preferably, the fixing screw penetrates the positioning cylinder and the fixing plate, and one end surface of the nut can be in contact with one end surface of the fixing plate.

Preferably, the outer diameter of the positioning cylinder is equal to the inner diameter of the mounting hole on the flange, and the fixing plate is provided with a corresponding hole at the position corresponding to the mounting hole on the flange.

Preferably, the sealing assembly includes a fixed block, a moving screw, a moving ring and a rubber ring;

A fixing block is fixedly installed at one end of the outer side of the flange, a moving screw is connected inside the fixing block through a thread, a moving ring is movably installed at one end of the moving screw, and a rubber ring is bonded inside the moving ring.

Compared with the prior art, the beneficial effects achieved by the present utility model are:

1. A fixed positioning component is provided to avoid the problem of the flange shaking during the installation process, which in turn leads to the phenomenon of dislocation of the installation holes, which leads to the problem of inconvenient installation of the flange, thereby improving the efficiency of the installation of the flange. , reduce the difficulty of installing the flange, and can perform the secondary connection and fixation of the flange to further ensure the stability of the flange connection.

2. A sealing component is provided, which can seal the interface position, improve the sealing effect at the interface position, avoid leakage during the use of the check valve body, and further ensure the safety of the check valve body. .

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the structural representation of the stable sealing check valve based on pipeline transportation of the present invention;

2 is a schematic structural diagram of a fixed positioning assembly of the present invention;

3 is a schematic structural diagram of the sealing assembly of the present invention;

In the figure: 1. Check valve body;

2. Fixed positioning assembly; 201, fixed plate; 202, spring telescopic rod; 203, mounting block; 204, rotating block; 205, rotating plate; 206, positioning cylinder; 207, fixing screw; 208, nut;

3. Sealing components; 301, fixed block; 302, moving screw; 303, moving ring; 304, rubber ring;

4. Flange.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a stable and sealed check valve based on pipeline transportation, including a check valve body 1, and flanges 4 are welded on both ends of the check valve body 1, and one end of the flange 4 is welded. A fixed positioning assembly 2 is installed, and the fixed positioning assembly 2 includes a fixed plate 201, a spring telescopic rod 202, a mounting block 203, a rotating block 204, a rotating plate 205, a positioning cylinder 206, a fixed screw 207 and a nut 208;

Both ends of the flange 4 are fixedly installed with a fixed plate 201, one end of the fixed plate 201 is fixedly installed with a spring telescopic rod 202, one end of the spring telescopic rod 202 is fixedly installed with an installation block 203, and one end of the installation block 203 is embedded with a rotating block 204. The block 203 is provided with a rotating groove at the position corresponding to the rotating block 204. The rotating block 204 is movably embedded and installed inside the rotating groove. The block 204 rotates more stably. One end of the rotating block 204 is fixedly installed with a rotating plate 205, and one end of the rotating plate 205 is fixedly installed with a positioning cylinder 206. The outer diameter of the positioning cylinder 206 is equal to the inner diameter of the mounting hole on the flange 4, and the fixed plate 201 corresponds to A corresponding hole is provided at the position of the mounting hole on the flange 4, which is convenient for the connection of the two flanges 4, and can make the flange 4 more stable during the connection process, which is convenient for the installation of fixing bolts. One end of the mounting block 203 is fixedly installed with a fixed The screw 207, the fixing screw 207 runs through the positioning cylinder 206 and the fixing plate 201, and one end face of the nut 208 can be in contact with one end face of the fixing plate 201, which is convenient for fixing the mounting block 203, and then the flange 4 can be fixed for the second time, so that the flange 4. The fixing is more stable, and the outer side of the fixing screw 207 is connected with a nut 208 through a thread.

A sealing assembly 3 is installed on the outside of the flange 4. The sealing assembly 3 includes a fixed block 301, a moving screw 302, a moving ring 303 and a rubber ring 304. A fixed block 301 is fixedly installed at one end of the outer side of the flange 4, and the inside of the fixed block 301 is threadedly connected with The screw 302 is moved, and a moving ring 303 is movably installed at one end of the moving screw 302 , and a rubber ring 304 is bonded inside the moving ring 303 .

The working principle of the utility model: when the staff installs the check valve body 1, the staff first rotates the rotating plate 205 so that the positioning cylinder 206 does not contact the flange 4, and then the staff overlaps the installation holes of the two flanges 4 Then, the staff rotates the rotating plate 205 again, and moves the rotating plate 205 during the rotation, so that the spring telescopic rod 202 is stretched, thereby driving the positioning cylinder 206 to move and rotate, and move the positioning cylinder 206 to the position where the two flanges 4 are aligned. Inside the mounting hole, the flange 4 connection is preliminarily fixed and positioned, and then the worker installs the nut 208, so that the nut 208 and the fixing screw 207 are connected by thread, and one end of the nut 208 contacts the fixing plate 201, and then rotates The nut 208 drives the fixed screw 207 to move during the rotation of the nut 208, and because the fixed screw 207 and the mounting block 203 are fixedly connected, the mounting block 203 is driven to move. connection, so that the fixed block 203 drives the movable end of the spring telescopic rod 202 to move, and then the mounting block 203 can be fixed, thereby fixing the positioning cylinder 206, and then the staff fixed the flange 4 through the fixing bolts. During the installation process, there is a problem of shaking, which in turn leads to the phenomenon of dislocation of the installation holes, which leads to the problem of inconvenient installation of the flange 4, thereby improving the efficiency of installing the flange 4, reducing the difficulty of installing the flange 4, and The flange 4 can be connected and fixed for a second time to further ensure the stability of the connection of the flange 4 .

After the connection of the two flanges 4 is completed, the staff rotates the moving screw 302 to make the moving screw 302 move, the movement of the moving screw 302 drives the moving ring 303 to move, and the movement of the moving ring 303 drives the rubber ring 304 to move. The ring 304 moves to the outside of the two flanges 4 ports, seals the port position, improves the sealing effect at the port position, avoids leakage during the use of the check valve body 1, and further ensures the check valve. The safety of the use of the main body 1.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. A stable and sealed check valve based on pipeline transportation, comprising a check valve body (1), and flanges (4) are welded on both ends of the check valve body (1), characterized in that: the flange (4) A fixed positioning assembly (2) is installed at one end, and the fixed positioning assembly (2) is mainly composed of a positioning cylinder (206) and a fixed screw (207), a nut (208), a spring expansion and contraction for driving the fixed positioning cylinder (206). The rod (202) and the rotating plate (205) are combined; A sealing assembly (3) is installed on the outside of the flange (4), and the sealing assembly (3) is mainly composed of a moving ring (303), a rubber ring (304) and a moving screw (302) for driving. 2 . The stable and sealed check valve based on pipeline transportation according to claim 1 , wherein the fixed positioning assembly ( 2 ) comprises a fixed plate ( 201 ), a spring telescopic rod ( 202 ), and a mounting block ( 203 ). 3 . ), a rotating block (204), a rotating plate (205), a positioning cylinder (206), a fixing screw (207) and a nut (208); Both ends of the flange (4) are fixedly installed with a fixing plate (201), one end of the fixing plate (201) is fixedly installed with a spring telescopic rod (202), and one end of the spring telescopic rod (202) is fixedly installed with a mounting block (203), one end of the mounting block (203) is embedded with a rotating block (204), one end of the rotating block (204) is fixedly installed with a rotating plate (205), and one end of the rotating plate (205) is fixedly installed There is a positioning cylinder (206), one end of the mounting block (203) is fixedly mounted with a fixing screw (207), and a nut (208) is connected to the outer side of the fixing screw (207) through threads. 3. The stable sealing check valve based on pipeline transportation according to claim 2, characterized in that: a rotation groove is provided at the position of the installation block (203) corresponding to the rotation block (204), and the rotation block (204) is provided with a rotation groove. ) is movably embedded and installed inside the rotating groove, and the outer diameter of the rotating block (204) is equal to the inner diameter of the rotating groove. The stable sealing check valve based on pipeline transportation according to claim 2, characterized in that: the fixing screw (207) penetrates the positioning cylinder (206) and the fixing plate (201), and the nut (208) One end surface may be in contact with one end surface of the fixing plate (201). 5. The stable sealing check valve based on pipeline transportation according to claim 2, characterized in that: the outer diameter of the positioning cylinder (206) is equal to the inner diameter of the mounting hole on the flange (4), and the fixing plate (201) Corresponding holes are provided at the positions of the mounting holes on the corresponding flange (4). 6. The stable sealing check valve based on pipeline transportation according to claim 1, characterized in that: the sealing assembly (3) comprises a fixed block (301), a moving screw (302), a moving ring (303) and Rubber ring (304); A fixing block (301) is fixedly installed at one end of the outer side of the flange (4), a moving screw (302) is connected inside the fixing block (301) through a thread, and a moving ring (302) is movably installed at one end of the moving screw (302). 303), a rubber ring (304) is bonded inside the moving ring (303).

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