Multi-layer sealing butterfly valve convenient to assemble

Abstract

The utility model discloses a multilayer sealing butterfly valve convenient to assemble, which comprises a valve body, a butterfly plate is rotatably arranged in the valve body, a rotating rod and a control handle which correspond to the butterfly plate are rotatably arranged on the valve body, connecting pipes are inserted into two ends of the valve body, and the two connecting pipes are fixedly arranged in the valve body through fixing mechanisms. The device comprises two connecting pipes, sealing gaskets are fixedly arranged on the outer walls of the two connecting pipes in a sleeving mode, conveying pipes are inserted into the two connecting pipes, sealing ring plates are fixedly arranged in the two connecting pipes, the two conveying pipes are arranged on the two sealing ring plates in a pressing mode respectively, and tensioning mechanisms corresponding to the conveying pipes are arranged on the two connecting pipes. The pipeline connecting device can adapt to connection of conveying pipelines with different thickness requirements, the pipelines and butterfly valves can be conveniently and rapidly assembled, the adaptability of the device is greatly improved, double sealing is carried out on assembled gaps, and the problem of water leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline transportation, in particular to a multi-layer sealing butterfly valve which is easy to assemble. Background Art

[0002] In the process of pipeline transportation, it is often necessary to connect a butterfly valve in the pipeline to control the transportation switch in the pipeline. In the prior art, the opening size of the traditional butterfly valve body is fixed, and it can only connect fixed-size pipelines. It has poor adaptability, and gaps are easily generated when the pipeline is connected to the valve body, resulting in poor sealing effect and leakage. Therefore, we propose a multi-layer sealing disc valve that is easy to assemble to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the traditional butterfly valve is difficult to adapt to the connection of pipelines of different sizes, the adaptability is poor, and gaps are easily generated at the connection with the pipeline, and the sealing effect is poor, and a multi-layer sealing butterfly valve that is easy to assemble is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A multi-layer sealed disc valve that is easy to assemble, comprises a valve body, a butterfly plate is rotatably arranged in the valve body, a rotating rod and a control handle corresponding to the butterfly plate are rotatably arranged on the valve body, connecting pipes are inserted at both ends of the valve body, two connecting pipes are fixedly arranged in the valve body by a fixing mechanism, and sealing gaskets are fixedly sleeved on the outer walls of the two connecting pipes, delivery pipes are inserted in the two connecting pipes, and sealing ring plates are fixedly arranged in the two connecting pipes, the two delivery pipes are respectively pressed on two sealing ring plates, and the two connecting pipes are provided with tensioning mechanisms corresponding to the delivery pipes.

[0006] Preferably, the fixing mechanism includes two or four clamping blocks, two receiving grooves are symmetrically provided on the inner walls at both ends of the valve body, the four clamping blocks are slidably arranged in the four receiving grooves respectively, each of the clamping blocks is connected to the inner wall of the receiving groove through a first spring, the side walls of the four clamping blocks close to the valve body opening are inclined, two clamping grooves corresponding to the clamping blocks are symmetrically provided on the outer walls of the two connecting pipes, and the two clamping blocks are provided with corresponding pulling mechanisms.

[0007] Preferably, the pulling mechanism includes four pull rods, which are respectively fixed on the side walls of four blocks at one end close to the first spring, each pull rod slides through the side wall of the valve body, and each pull rod is fixedly connected with a pull handle at one end away from the block.

[0008] Preferably, the tensioning mechanism includes four tensioning plates, and the four tensioning plates are slidably arranged in groups of two at one end of the two connecting tubes away from each other. Two side grooves corresponding to the tensioning plates are symmetrically provided on the side walls of the two connecting tubes. A connecting plate is fixedly provided on the side wall of each tensioning plate, and a locking bolt is rotatably penetrated on each connecting plate. Two threaded grooves corresponding to the locking bolt are symmetrically provided on the side walls of the two connecting tubes, and each tensioning plate is also provided with a connecting mechanism corresponding to the conveying pipe.

[0009] Preferably, the connecting mechanism includes four connecting blocks, and each of the tensioning plates is provided with a telescopic groove corresponding to the connecting block on the side wall on the side close to the conveying pipe. The four connecting blocks are respectively slidably arranged in the four telescopic grooves, and each of the connecting blocks is connected to the inner walls of the four telescopic grooves through a second spring. Two connecting grooves corresponding to the connecting blocks are symmetrically arranged on the side walls of the two conveying pipes, and a lever is fixedly arranged on the side wall of each of the connecting blocks, and each of the levers slides through the side wall of the tensioning plate, and a strip sliding opening corresponding to the lever is arranged on the side wall of each of the tensioning plates.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a pull rod, the control of the card block is achieved, and the pull rod can be pulled to drive the card block to slide out of the card slot, thereby releasing the fixation of the connecting pipe on the valve body, making it convenient to replace different connecting pipes to adapt to pipeline assemblies of different sizes, greatly improving the adaptability of the device, and through the cooperation of the locking bolt and the connecting plate, the tensioning plate can be driven to extend or retract, and then through the connection of the connecting block to the delivery pipe, the delivery pipe can be tightened and pressed against the sealing ring plate, thereby achieving the sealing of the gap at the connection between the delivery pipe and the connecting pipe, and then by setting a sealing gasket to seal the gap between the connecting pipe and the valve body, double sealing is achieved to avoid leakage problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of a multi-layer sealing butterfly valve that is easy to assemble proposed by the utility model;

[0012] Figure 2 This is a side structural cross-sectional view of a multi-layer sealing butterfly valve that is easy to assemble proposed by the utility model;

[0013] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle.

[0014] In the figure: 1 valve body, 2 butterfly plate, 3 connecting block, 4 expansion groove, 5 connecting pipe, 6 delivery pipe, 7 sealing ring plate, 8 sealing gasket, 9 tensioning plate, 10 clamping block, 11 receiving groove, 12 first spring, 13 pull rod, 14 pull handle, 15 second spring, 16 lever, 17 connecting plate, 18 locking bolt. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Reference Figure 1-Figure 3A multi-layer sealing butterfly valve that is easy to assemble comprises a valve body 1, a butterfly plate 2 is rotatably arranged in the valve body 1, a rotating rod and a control handle corresponding thereto are rotatably arranged on the valve body 1, connecting pipes 5 are inserted at both ends of the valve body 1, and the two connecting pipes 5 are fixedly arranged in the valve body 1 through a fixing mechanism, and the fixing mechanism comprises two four clamping blocks 10, two receiving grooves 11 are symmetrically arranged on the inner walls at both ends of the valve body 1, and the four clamping blocks 10 are respectively slidably arranged in the four receiving grooves 11, and each clamping block 10 is connected to the inner wall of the receiving groove 11 through a first spring 12, and the side walls of the four clamping blocks 10 on one side of the opening of the valve body 1 are inclined, and two clamping grooves corresponding to the clamping blocks 10 are symmetrically arranged on the outer walls of the two connecting pipes 5, and the two clamping blocks 10 are provided with The corresponding pulling mechanism includes four pull rods 13, which are respectively fixed on the side walls of the four blocks 10 at one end close to the first spring 12, each pull rod 13 slides through the side wall of the valve body 1, and each pull rod 13 is fixedly connected with a pull handle 14 at one end away from the block 10, and the outer walls of the two connecting tubes 5 are fixedly sleeved with sealing gaskets 8, and the two connecting tubes 5 are inserted with delivery tubes 6, and the two connecting tubes 5 are fixedly provided with sealing ring plates 7, and the two delivery tubes 6 are respectively pressed on the two sealing ring plates 7, and the two connecting tubes 5 are provided with a tensioning mechanism corresponding to the delivery tube 6, and the tensioning mechanism includes four tensioning plates 9, and the four tensioning plates 9 are slidably arranged in pairs at the two connecting tubes 5 away from each other. At one end, two side grooves corresponding to the tensioning plates 9 are symmetrically provided on the side walls of the two connecting pipes 5, a connecting plate 17 is fixedly provided on the side wall of each tensioning plate 9, and a locking bolt 18 is rotatably provided on each connecting plate 17, and two threaded grooves corresponding to the locking bolts 18 are symmetrically provided on the side walls of the two connecting pipes 5, and each tensioning plate 9 is also provided with a connecting mechanism corresponding to the conveying pipe 6, and the connecting mechanism includes four connecting blocks 3, and a telescopic groove 4 corresponding to the connecting block 3 is provided on the side wall of each tensioning plate 9 close to the conveying pipe 6, and the four connecting blocks 3 are respectively slidably provided in the four telescopic grooves 4, and two connecting grooves corresponding to the connecting blocks 3 are symmetrically provided on the side walls of the two conveying pipes 6, and each connecting block 3 is connected by a second spring 15 Connected to the inner walls of the four telescopic grooves 4, a lever 16 is fixedly arranged on the side wall of each connecting block 3, and each lever 16 slides through the side wall of the tensioning plate 9. A strip-shaped sliding opening corresponding to the lever 16 is opened on the side wall of each tensioning plate 9. By setting a pull rod 13, the control of the card block 10 is realized. Pulling the pull rod 13 can drive the card block 10 to slide out of the card slot, thereby releasing the fixation of the connecting pipe 5 on the valve body 1, making it convenient to replace different connecting pipes 5 to adapt to the assembly of pipelines of different sizes, greatly improving the adaptability of the device, and through the cooperation of the locking bolt 18 and the connecting plate 17, the tensioning plate 9 can be driven to extend or retract, and then the delivery pipe 6 can be connected to the connection block 3 to tighten and press it on the sealing ring plate 7.Thus, the gap between the delivery pipe 6 and the connecting pipe 5 is sealed, and then the gap between the connecting pipe 5 and the valve body 1 is sealed by setting the sealing gasket 8, so as to achieve double sealing and avoid the problem of liquid leakage.

[0017] In the utility model, when assembling the butterfly valve and the pipeline, first pull the pull rod 13 to drive the clamping block 10 to slide out of the clamping groove, and then remove the connecting pipe 5. According to the size of the delivery pipe 6 to be connected, select a suitable connecting pipe 5 and install it on the valve body 1, then put the delivery pipe 6 into the connecting pipe 5, and after the connecting block 3 on the tensioning plate 9 is clamped with the connecting groove on the delivery pipe 6, rotate the locking bolt 18 to drive the tensioning plate 9 to tighten the delivery pipe 6 and press it on the sealing ring plate 7, so as to achieve the sealing of the gap at the connection between the delivery pipe 6 and the connecting pipe 5, and then set the sealing gasket 8 to seal the gap between the connecting pipe 5 and the valve body 1, so as to achieve multi-layer sealing and avoid the problem of leakage.

[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer sealing butterfly valve that is easy to assemble, comprising a valve body (1), characterized in that: A butterfly plate (2) is rotatably arranged in the valve body (1), a rotating rod and a control handle corresponding thereto are rotatably arranged on the valve body (1), connecting pipes (5) are inserted at both ends of the valve body (1), the two connecting pipes (5) are fixedly arranged in the valve body (1) by a fixing mechanism, and sealing gaskets (8) are fixedly sleeved on the outer walls of the two connecting pipes (5), a delivery pipe (6) is inserted in the two connecting pipes (5), and a sealing ring plate (7) is fixedly arranged in the two connecting pipes (5), the two delivery pipes (6) are respectively pressed on the two sealing ring plates (7), and the two connecting pipes (5) are provided with a tensioning mechanism corresponding to the delivery pipe (6).

2. A multi-layer sealing butterfly valve that is easy to assemble according to claim 1, characterized in that: The fixing mechanism comprises two or four clamping blocks (10), two receiving grooves (11) are symmetrically provided on the inner walls at both ends of the valve body (1), the four clamping blocks (10) are respectively slidably arranged in the four receiving grooves (11), each of the clamping blocks (10) is connected to the inner wall of the receiving groove (11) via a first spring (12), the side walls of the four clamping blocks (10) close to the opening of the valve body (1) are inclined, two clamping grooves corresponding to the clamping blocks (10) are symmetrically provided on the outer walls of the two connecting pipes (5), and the two clamping blocks (10) are provided with corresponding pulling mechanisms.

3. The multi-layer sealing butterfly valve that is easy to assemble according to claim 2, characterized in that: The pulling mechanism comprises four pull rods (13), and the four pull rods (13) are respectively fixedly arranged on the side walls of four blocks (10) at one end close to the first spring (12), each of the pull rods (13) is slidably arranged to penetrate the side wall of the valve body (1), and one end of each pull rod (13) away from the block (10) is fixedly connected to a pull handle (14).

4. The multi-layer sealing butterfly valve that is easy to assemble according to claim 1 is characterized in that: The tensioning mechanism comprises four tensioning plates (9), and the four tensioning plates (9) are slidably arranged in groups of two at one end of the two connecting tubes (5) away from each other. Two side grooves corresponding to the tensioning plates (9) are symmetrically provided on the side walls of the two connecting tubes (5). A connecting plate (17) is fixedly provided on the side wall of each tensioning plate (9), and a locking bolt (18) is rotatably penetrated on each connecting plate (17). Two threaded grooves corresponding to the locking bolt (18) are symmetrically provided on the side walls of the two connecting tubes (5), and each tensioning plate (9) is also provided with a connecting mechanism corresponding to the conveying pipe (6).

5. The multi-layer sealing butterfly valve that is easy to assemble according to claim 4, characterized in that: The connecting mechanism comprises four connecting blocks (3), and a telescopic groove (4) corresponding to the connecting block (3) is provided on the side wall of each tensioning plate (9) close to the conveying pipe (6). The four connecting blocks (3) are respectively slidably arranged in the four telescopic grooves (4), and each connecting block (3) is connected to the inner wall of the four telescopic grooves (4) through a second spring (15). Two connecting grooves corresponding to the connecting blocks (3) are symmetrically provided on the side walls of the two conveying pipes (6). A lever (16) is fixedly provided on the side wall of each connecting block (3), and each lever (16) is slidably arranged to penetrate the side wall of the tensioning plate (9). A strip-shaped sliding opening corresponding to the lever (16) is provided on the side wall of each tensioning plate (9).

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