Pneumatic diaphragm valve capable of being conveniently connected with pipelines of different models

Abstract

The utility model relates to the technical field of pneumatic diaphragm valves, in particular to a pneumatic diaphragm valve capable of being conveniently connected with pipelines of different models, which comprises a pneumatic diaphragm valve body, a valve seat is fixedly mounted at the lower end of the pneumatic diaphragm valve body, a connecting pipe is fixedly mounted in the valve seat, and one end of the connecting pipe is fixedly connected with a pipeline connector. The pipeline connector is a conical pipe, a sealing gasket is arranged on the outer surface of the pipeline connector in a sleeving mode, a fixing disc is fixedly connected to the connecting pipe, and the sealing gasket, the pipeline connector and the anti-falling assembly are arranged, and due to the fact that a fixing ring is in threaded connection with a connecting ring and an anti-sliding ring is rotated, the connecting ring is driven to move towards the side close to the fixing disc; the sealing gasket plays a role in sealing, the sealing gasket is prevented from being separated from the pipeline opening, and due to the fact that the sealing gasket and the pipeline connector are both conical, connection of pipelines with different diameters can be achieved, and applicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic diaphragm valves, in particular to a pneumatic diaphragm valve which is convenient for connecting pipelines of different models. Background Art

[0002] The pneumatic diaphragm valve is a special form of shut-off valve that appeared in the 1920s. Its opening and closing parts are a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving components, so it is called a pneumatic diaphragm valve. The most prominent feature of the pneumatic diaphragm valve is that the diaphragm separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that the valve stem, valve disc and other parts located above the diaphragm are not corroded by the medium, the packing sealing structure is omitted, and no medium leakage occurs. In actual use, due to the variety of pipeline types, the existing pneumatic diaphragm valve can only connect the same type of pipeline, and cannot meet the connection of pipelines of different diameters. It has low applicability and strong limitations. For this reason, the utility model proposes a pneumatic diaphragm valve that is easy to connect pipelines of different models to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a pneumatic diaphragm valve which is convenient for connecting pipelines of different models, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic diaphragm valve that is convenient for connecting pipes of different types, comprising a pneumatic diaphragm valve body, a valve seat fixedly installed at the lower end of the pneumatic diaphragm valve body, a connecting pipe fixedly installed inside the valve seat, a pipe connector fixedly connected to one end of the connecting pipe, the pipe connector is a conical pipe, a sealing gasket is sleeved on the outer surface of the pipe connector, a fixing disk is fixedly connected to the connecting pipe, an anti-dropping component for preventing the pipe and the pipe connector from falling off is arranged on the fixing disk, a mounting ring is arranged on the anti-dropping component, and two sets of locking components for fixing the pipe are symmetrically arranged on the mounting ring.

[0005] Preferably, the anti-slip assembly comprises a fixing ring, a connecting ring and an anti-slip ring, the fixing ring is fixedly connected to an end of the fixing disk away from the valve seat, and an internal thread is provided in the fixing ring.

[0006] Preferably, the outer surface of the connecting ring is provided with an external thread matching the internal thread on the fixing ring, the fixing ring is threadedly connected to the connecting ring, the anti-slip ring is fixedly mounted on the connecting ring, and the connecting ring is rotatably connected to the inner wall of the mounting ring.

[0007] Preferably, the locking assembly comprises a mounting plate, a threaded rod, a limiting rod, a fixing plate and an adjusting button, and the mounting plate is fixedly mounted on the mounting ring.

[0008] Preferably, the limiting rod is slidably connected to the mounting plate, the threaded rod is threadedly connected to the middle of the mounting plate, and the fixing plate is fixedly connected to one end of the limiting rod.

[0009] Preferably, one end of the threaded rod is rotatably connected to a fixed plate, and the other end of the threaded rod is fixedly connected to an adjusting button. The fixed plate is an arc-shaped plate, and anti-slip grooves are provided on the fixed plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By providing a locking assembly, the adjusting knob drives the threaded rod to rotate by turning the adjusting knob, the mounting plate is threadedly connected with the threaded rod, the mounting plate limits the limit rod, the threaded rod drives the fixing plate to lock and fix the pipeline, and the fixing plate is provided with anti-slip grooves to prevent the pipeline from sliding when fixing the pipeline, and the operation is simple;

[0012] By providing a sealing gasket, a pipe connector and an anti-detachment component, since the fixing ring is threadedly connected to the connecting ring, the anti-slip ring is rotated to drive the connecting ring to move to the side close to the fixing plate, thereby driving the pipe opening to stick tightly to the sealing gasket, and the sealing gasket plays a sealing role, avoiding the sealing gasket from detaching from the pipe opening. Since the sealing gasket and the pipe connector are both conically set, they can meet the needs of connecting pipes of different diameters, and the applicability is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the locking assembly structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the anti-slip assembly structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the internal connection structure of the utility model.

[0017] In the figure: 1. pneumatic diaphragm valve body; 2. valve seat; 3. connecting pipe; 4. fixing plate; 5. anti-drop assembly; 6. sealing gasket; 7. pipe connector; 8. mounting ring; 9. locking assembly; 51. fixing ring; 52. connecting ring; 53. anti-slip ring; 91. mounting plate; 92. threaded rod; 93. limit rod; 94. fixing plate; 95. adjusting button. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 4 The utility model provides a technical solution: a pneumatic diaphragm valve that is convenient for connecting pipelines of different types, including a pneumatic diaphragm valve body 1, a valve seat 2 is fixedly installed at the lower end of the pneumatic diaphragm valve body 1, a connecting pipe 3 is fixedly installed inside the valve seat 2, one end of the connecting pipe 3 is fixedly connected to a pipeline connector 7, the pipeline connector 7 is a conical tube setting, and a sealing gasket 6 is sleeved on the outer surface of the pipeline connector 7, a fixing plate 4 is fixedly connected to the connecting pipe 3, and an anti-slip component 5 for preventing the pipeline and the pipeline connector 7 from falling off is arranged on the fixing plate 4, and a mounting ring 8 is arranged on the anti-slip component 5, and two sets of locking components 9 for fixing the pipeline are symmetrically arranged on the mounting ring 8, and the locking component 9 is arranged, and the adjusting button 95 is driven by rotating the adjusting button 95. The threaded rod 92 rotates, and the mounting plate 91 is threadedly connected to the threaded rod 92. The mounting plate 91 limits the limiting rod 93, and the threaded rod 92 drives the fixing plate 94 to lock and fix the pipeline. The fixing plate 94 is provided with anti-skid grooves to prevent the pipeline from sliding when fixing the pipeline. The operation is simple. By providing a sealing gasket 6, a pipeline connector 7 and an anti-slip component 5, since the fixing ring 51 is threadedly connected to the connecting ring 52, the anti-skid ring 53 is rotated to drive the connecting ring 52 to move to the side close to the fixing plate 4, thereby driving the pipeline mouth to be tightly attached to the sealing gasket 6, and the sealing gasket 6 plays a sealing role. Since the sealing gasket 6 and the pipeline connector 7 are both conically set, they can meet the connection of pipelines of different diameters, and the applicability is enhanced.

[0020] The anti-slip assembly 5 includes a fixing ring 51, a connecting ring 52 and an anti-slip ring 53. The fixing ring 51 is fixedly connected to the end of the fixing disk 4 away from the valve seat 2. An internal thread is provided in the fixing ring 51. An external thread matching the internal thread on the fixing ring 51 is provided on the outer surface of the connecting ring 52. The fixing ring 51 is threadedly connected to the connecting ring 52. The anti-slip ring 53 is fixedly installed on the connecting ring 52. The connecting ring 52 is rotatably connected to the inner wall of the mounting ring 8. Since the fixing ring 51 is threadedly connected to the connecting ring 52, the anti-slip ring 53 is rotated so that the fixing ring 51 and the connecting ring 52 are threadedly connected.

[0021] The locking assembly 9 includes a mounting plate 91, a threaded rod 92, a limiting rod 93, a fixing plate 94 and an adjusting button 95. The mounting plate 91 is fixedly mounted on the mounting ring 8. The limiting rod 93 is slidably connected to the mounting plate 91. The threaded rod 92 is threadedly connected to the middle of the mounting plate 91. The fixing plate 94 is fixedly connected to one end of the limiting rod 93. One end of the threaded rod 92 is rotatably connected to the fixing plate 94. The other end of the threaded rod 92 is fixedly connected to the adjusting button 95. The fixing plate 94 is an arc-shaped plate. The fixing plate 94 is provided with anti-slip grooves to prevent the pipeline from sliding when fixing the pipeline. By rotating the adjusting button 95, the adjusting button 95 drives the threaded rod 92 to rotate. The mounting plate 91 is threadedly connected to the threaded rod 92. The mounting plate 91 limits the limiting rod 93. The threaded rod 92 drives the fixing plate 94 to lock and fix the pipeline.

[0022] Working principle: in actual use, the pipe is passed through the mounting ring 8 and the connecting ring 52 in turn, and the pipe mouth is put on the pipe connector 7, the pipe mouth is in contact with the sealing gasket 6, since the fixing ring 51 is threadedly connected with the connecting ring 52, the anti-slip ring 53 is rotated to make the fixing ring 51 and the connecting ring 52 threadedly connected, and then the adjusting button 95 is rotated, the adjusting button 95 drives the threaded rod 92 to rotate, the mounting plate 91 is threadedly connected with the threaded rod 92, the mounting plate 91 limits the limiting rod 93, the threaded rod 92 drives the fixing plate 94 to lock and fix the pipe, and then the anti-slip ring 53 is rotated to drive the connecting ring 52 to move to the side close to the fixing plate 4, thereby driving the pipe mouth to be tightly attached to the sealing gasket 6, and the sealing gasket 6 plays a sealing role. Since the sealing gasket 6 and the pipe connector 7 are both conically set, they can meet the connection of pipes of different diameters, and the applicability is enhanced.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic diaphragm valve that is convenient for connecting pipes of different types, comprising a pneumatic diaphragm valve body (1), characterized in that: A valve seat (2) is fixedly mounted on the lower end of the pneumatic diaphragm valve body (1), a connecting pipe (3) is fixedly mounted inside the valve seat (2), one end of the connecting pipe (3) is fixedly connected to a pipe connector (7), the pipe connector (7) is a conical pipe, a sealing gasket (6) is sleeved on the outer surface of the pipe connector (7), a fixing plate (4) is fixedly connected to the connecting pipe (3), an anti-slip component (5) for preventing the pipe and the pipe connector (7) from falling off is arranged on the fixing plate (4), a mounting ring (8) is arranged on the anti-slip component (5), and two sets of locking components (9) for fixing the pipe are symmetrically arranged on the mounting ring (8).

2. A pneumatic diaphragm valve that is convenient for connecting pipes of different models according to claim 1, characterized in that: The anti-slip assembly (5) comprises a fixing ring (51), a connecting ring (52) and an anti-slip ring (53); the fixing ring (51) is fixedly connected to an end of the fixing plate (4) away from the valve seat (2); and an internal thread is provided in the fixing ring (51).

3. A pneumatic diaphragm valve that is convenient for connecting pipes of different models according to claim 2, characterized in that: The outer surface of the connecting ring (52) is provided with an external thread that matches the internal thread on the fixing ring (51); the fixing ring (51) is threadedly connected to the connecting ring (52); the anti-slip ring (53) is fixedly mounted on the connecting ring (52); and the connecting ring (52) is rotatably connected to the inner wall of the mounting ring (8).

4. A pneumatic diaphragm valve that is convenient for connecting pipes of different models according to claim 3, characterized in that: The locking assembly (9) comprises a mounting plate (91), a threaded rod (92), a limiting rod (93), a fixing plate (94) and an adjusting button (95); the mounting plate (91) is fixedly mounted on the mounting ring (8).

5. A pneumatic diaphragm valve that is convenient for connecting pipes of different types according to claim 4, characterized in that: The limiting rod (93) is slidably connected to the mounting plate (91), the threaded rod (92) is threadedly connected to the middle of the mounting plate (91), and the fixing plate (94) is fixedly connected to one end of the limiting rod (93).

6. A pneumatic diaphragm valve that is convenient for connecting pipes of different models according to claim 5, characterized in that: One end of the threaded rod (92) is rotatably connected to a fixing plate (94), and the other end of the threaded rod (92) is fixedly connected to an adjusting button (95). The fixing plate (94) is an arc-shaped plate, and anti-slip grooves are provided on the fixing plate (94).

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