Pump valve external pipe

Abstract

The utility model discloses an external pipe of a pump valve, which relates to the technical field of pump valves and comprises a main pipe body, two sides of the main pipe body are provided with telescopic grooves, each telescopic groove is provided with an inner side wall and an extension wall, the extension wall is provided with rotary openings in a circumferential array, the extension wall is provided with a threaded ring, and the threaded ring is provided with a fastening rotary ring. The fastening rotating ring is provided with a propelling thread matched with the threaded ring, a rotating shaft is fixedly arranged at the center of the rotating opening, the rotating shaft is sleeved with a blocking plate and a torsion plate, the torsion plate is located above the rotating shaft, the blocking plate is located below the rotating shaft, the torsion plate and the blocking plate are fixedly connected at the rotating shaft, and a propelling wall is fixedly arranged at the front end of the fastening rotating ring; a supporting spring is fixedly arranged at the bottom of the telescopic groove and provided with a blocking ring. The pipeline connecting device is simple in structure and convenient to operate, pump valves of different sizes can be connected with pipelines through the external connecting pipes, the pipelines can be fixed without bolts, and the pipeline connecting device is high in adaptability and suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of pump valves, and particularly relates to an external connecting pipe for pump valves. Background Art

[0002] The reason why pumps and valves are often associated is the application scenario. That is to say, where there is a pump, there is generally a valve, and where there is a valve, a pump is often needed. They are both used in places for liquid transportation. The pump valve pipeline is an indispensable part in the application of pump valves. The connection between the pump valve and the pipeline is mostly through flanges.

[0003] When connecting through flanges, the same flange model is required and fixed together by bolts. Flanges of different sizes cannot be connected. It is necessary to equip pump valves or pipelines with flanges of the same size and fix them with bolts, which is inconvenient for installation and disassembly. Therefore, an external connecting pipe is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an external connecting pipe for pump valves, which has a simple structure and convenient operation. Through the external connecting pipe, pump valves and pipelines of different sizes can be connected, and the fixation between pipelines can be achieved without bolts, with strong adaptability and suitable for popularization.

[0005] The utility model provides the following technical solution: an external connecting pipe for pump valves, including a main pipe body. On both sides of the main pipe body, there are fixed telescopic grooves surrounding its openings. The telescopic grooves are provided with inner side walls and extending walls. The extending walls extend outward and are provided with circumferentially arrayed rotating openings. On the outside of the extending walls, there are fixed threaded rings. The threads of the threaded rings are on the outside. The threaded rings are equipped with fastening rotating rings. The inner sides of the fastening rotating rings are provided with advancing threads matching the threaded rings. At the centers of the rotating openings, there are fixed rotating shafts. On the rotating shafts, there are sleeved blocking plates and torsion plates. The torsion plates are located above the rotating shafts, and the blocking plates are located below the rotating shafts. The torsion plates and the blocking plates are fixedly connected at the rotating shafts. At the front ends of the fastening rotating rings, there are fixed advancing walls;

[0006] At the bottoms of the telescopic grooves, there are fixed circumferentially arrayed support springs. The other ends of the support springs are fixed with sealing rings. At the front ends of the sealing rings, there are closed grooves extending inward to the front ends of the inner side walls.

[0007] Preferably, the cross-section of the closed groove is L-shaped, and the L-shaped groove is elastic. The two sides of the sealing ring are respectively slidably connected with the inner walls of the telescopic grooves. The closed groove is hermetically connected with the front end of the inner side wall when connecting pump valves.

[0008] Preferably, the blocking plate is attached to the extending wall when connecting pump valves. The top of the torsion plate is provided with an arc surface, and the position is opposite to the advancing wall. There is friction at the connections of the blocking plate, the torsion plate and the rotating shaft.

[0009] Preferably, the front end of the baffle is provided with friction lines.

[0010] The beneficial effects of the present utility model are as follows: the structure is simple, the operation is convenient, different-sized pump valves and pipes can be connected through the external pipe, and the fixation between pipes can be achieved without bolts, with strong adaptability, specifically as follows:

[0011] (1). The present utility model is provided with a baffle. When connecting flanges of different sizes, the two flanges are respectively inserted into the pipes formed by the two side extension walls. At this time, the sealing ring is located at the rear end of the main pipe body, and the baffle is obliquely attached to the inner wall of the extension wall for the flange to pass through. After the flange contacts the sealing ring, by rotating the fastening rotating ring, the sealing ring is pushed forward, the front end of the torsion plate is pushed in, so that it rotates around the rotating shaft. While the torsion plate rotates, the baffle rotates around the rotating shaft accordingly, and its front end abuts against the rear of the flange, pushing the flange forward. When the flange pushes the sealing ring forward, the sealing ring is stuck in the telescopic groove to seal the sealing ring, and the flange is closely attached to the sealing ring to seal the flange, so that the main pipe body is connected to the external pipe. The size of the external flange only needs to meet that the bolt holes can be attached to the sealing ring and the baffle can abut against the rear end of the flange to be connected to the main pipe body, thereby increasing its adaptability.

[0012] (2). The present utility model is provided with a fastening rotating ring. When the main pipe body is connected to the external pipe and the fastening rotating ring is located at the front end, the sealing ring abuts against the torsion plate and the baffle abuts against the flange. When disassembly is required, rotate the fastening rotating ring in the reverse direction, the sealing ring retreats, and the baffle and the torsion plate can rotate around the rotating shaft, and then the flange can be pulled out. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is the overall schematic diagram of the present utility model;

[0015] Figure 2 is the cross-sectional view of the present utility model;

[0016] Figure 3 is the enlarged view of part A of the present utility model;

[0017] The labels in the figure are: 1, main pipe body; 2, fastening rotating ring; 3, pushing wall; 4, extension wall; 5, sealing ring; 6, baffle; 7, telescopic groove; 8, support spring; 9, rotating opening; 10, threaded ring; 11, inner side wall; 12, pushing thread; 13, sealing groove; 14, rotating shaft; 15, torsion plate. Detailed Embodiments

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] Now, with reference to the accompanying drawings of the specification, the structural features of the present utility model will be described in detail.

[0022] See Figures 1-3, A pump valve external connecting pipe, including a main pipe body 1. On both sides of the main pipe body 1, telescopic grooves 7 surrounding its opening are fixedly provided. The telescopic grooves 7 are provided with an inner side wall 11 and an extending wall 4. A fixing mechanism is installed through the extending wall 4. The extending wall 4 extends outward and is provided with rotation openings 9 arranged in a circumferential array. A rotating shaft 14 is installed through the rotation openings 9. On the outside of the extending wall 4, a threaded ring 10 is fixedly provided. The thread of the threaded ring 10 is arranged on the outside. The threaded ring 10 is equipped with a fastening rotating ring 2. The inner side of the fastening rotating ring 2 is provided with a propulsion thread 12 matching the threaded ring 10. By rotating the fastening rotating ring 2, the fastening rotating ring 2 can move back and forth along the threaded ring 10. At the center of the rotation opening 9, a rotating shaft 14 is fixedly provided. A blocking plate 6 and a torsion plate 15 are sleeved on the rotating shaft 14. The torsion plate 15 is located above the rotating shaft 14, and the blocking plate 6 is located below the rotating shaft 14. The torsion plate 15 and the blocking plate 6 are fixedly connected at the rotating shaft 14. By pressing the blocking plate 6 on the connected flange, it is fixed. At the front end of the fastening rotating ring 2, a propulsion wall 3 is fixedly provided. By pushing the propulsion wall 3, the torsion plate 15 is rotated along the rotating shaft 14, driving the blocking plate 6 to rotate.

[0023] See Figure 1 , 3 , At the bottom of the telescopic groove 7, support springs 8 arranged in a circumferential array are fixedly provided to provide shock absorption and misalignment space. The other ends of the support springs 8 are fixedly provided with a sealing ring 5. Sealing is achieved by the flange fitting on the sealing ring 5. At the front end of the sealing ring 5, a sealing groove 13 extending inward to the front end of the inner side wall 11 is provided. The cross-section of the sealing groove 13 is L-shaped, and the L-shaped groove is elastic, enabling it to be stuck on the inner side wall 11 and connected tightly to it. Both sides of the sealing ring 5 are slidably connected to the inner wall of the telescopic groove 7.

[0024] See Figure 1 , 3 , When the pump valve is connected, the blocking plate 6 fits on the extending wall 4 to allow the flange to pass through. The top end of the torsion plate 15 is provided with an arc surface, which can slide on the propulsion wall 3 when the propulsion wall 3 pushes it, and its position is opposite to the propulsion wall 3. There is friction at the connection of the blocking plate 6, the torsion plate 15 and the rotating shaft 14, so that after manually rotating the blocking plate 6 and the torsion plate 15, they will not rotate due to gravity. The front end of the blocking plate 6 is provided with friction lines to prevent the flange from displacing after it is pushed into place.

[0025] The pump valve external connecting pipe of the present utility model has a simple structure and is convenient to operate. Different-sized pump valves can be connected to pipelines through the external connecting pipe, and the fixation between pipelines can be achieved without bolts, with strong adaptability and suitable for popularization.

[0026] Specifically, when in use, refer to Figures 1-3, when facing flanges of different sizes, insert the two flanges into the pipes formed by the extension walls 4 on both sides respectively. At this time, the sealing ring 5 is located at the rear end of the main body 1, and the blocking plate 6 is obliquely attached to the inner wall of the extension wall 4 to allow the flange to pass through. After the flange contacts the sealing ring 5, by rotating the fastening rotating ring 2, the sealing ring 5 is pushed forward, and the front end of the torsion plate 15 is pushed in, causing it to rotate around the rotation axis 14. While the torsion plate 15 rotates, the blocking plate 6 also rotates around the rotation axis 14, and its front end abuts behind the flange, pushing the flange forward. When the flange pushes the sealing ring 5 forward, the sealing ring 5 is stuck in the telescopic groove 7 to seal the sealing ring 5, and the flange is closely attached to the sealing ring 5 to seal the flange, so that the main body 1 is connected to the external pipe. The size of the external flange only needs to meet that the bolt holes can be attached to the sealing ring 5 and the blocking plate 6 can abut against the rear end of the flange to be connected to the main body 1. When disassembly is required, rotate the fastening rotating ring 2 in the reverse direction, the sealing ring 5 retracts, and the blocking plate 6 and the torsion plate 15 can rotate around the rotation axis 14, and then the flange can be pulled out.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for 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

1. A pump valve external pipe, comprising a main pipe body (1), characterized in that: The two sides of the main body (1) are fixedly provided with expansion grooves (7) surrounding the openings thereof, the expansion grooves (7) are provided with inner side walls (11) and extension walls (4), the extension walls (4) extend outwardly and are provided with a circumferential array of rotating openings (9), the outer side of the extension wall (4) is fixedly provided with a threaded ring (10), the threads of the threaded ring (10) are provided on the outer side, the threaded ring (10) is equipped with a fastening swivel (2), the inner side of the fastening swivel (2) is provided with a threaded ring (11) which is connected to the threaded ring (11). 0) and a propulsion thread (12) matching the rotating shaft (14), a rotating shaft (14) is fixedly provided at the center of the rotating opening (9), a blocking plate (6) and a torsion plate (15) are sleeved on the rotating shaft (14), the torsion plate (15) is located above the rotating shaft (14), the blocking plate (6) is located below the rotating shaft (14), the torsion plate (15) and the blocking plate (6) are fixedly connected at the rotating shaft (14), and a propulsion wall (3) is fixedly provided at the front end of the fastening swivel (2); A circumferential array of support springs (8) are fixedly provided at the bottom of the telescopic slot (7), a sealing ring (5) is fixedly provided at the other end of the support spring (8), and a sealed slot (13) is provided at the front end of the sealing ring (5) extending inwardly to the front end of the inner wall (11).

2. A pump valve external pipe according to claim 1, characterized in that: The cross section of the sealed groove (13) is L-shaped, and the L-shaped groove has elasticity. The two sides of the sealing ring (5) are respectively slidably connected to the inner wall of the telescopic groove (7). When the pump valve is connected, the sealed groove (13) is sealed and connected to the front end of the inner wall (11).

3. A pump valve external pipe according to claim 1, characterized in that: The blocking plate (6) is attached to the extension wall (4) when the pump valve is connected, the top end of the torsion plate (15) is provided with an arc surface and is located opposite to the propulsion wall (3), and friction is present at the connection between the blocking plate (6), the torsion plate (15) and the rotating shaft (14).

4. A pump valve external pipe according to claim 1, characterized in that: The front end of the blocking plate (6) is provided with friction patterns.

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