Integrated butterfly valve with leakage-proof structure

Abstract

The utility model relates to an integrated butterfly valve with a leakage-proof structure, which belongs to the technical field of valves, has a simpler integral structure, ensures the sealing property of the joint of a butterfly valve seat and a pipeline compared with the prior art, avoids the liquid leakage phenomenon after long-time use, has better sealing property, and improves the usability. The valve body is arranged on the butterfly valve seat, and the valve body is communicated with the butterfly valve seat; the valve rod is arranged in the valve body through the connecting hole, one end of the valve rod extends into the butterfly valve seat, and a butterfly plate is fixedly arranged outside the valve rod in the butterfly valve seat in a sleeving manner; the switch valve is arranged at one end of the valve body, and the switch valve is used for driving the valve rod to rotate; the two mounting plates are fixedly arranged on the outer wall of the butterfly valve seat in a sleeving manner, and a plurality of mounting holes are formed in the two mounting plates; and the annular rubber mat is detachably connected into the mounting plate through the annular groove.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to an integrated butterfly valve with a leak-proof structure. Background Art

[0002] As we all know, butterfly valve, also known as flap valve, is a regulating valve with a simple structure. It can be used for on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member (valve disc or butterfly plate) as a disc, which rotates around the valve axis to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media, and mainly plays a role of cutting off and throttling in the pipeline.

[0003] At present, the applicant has found that the existing butterfly valves are in long-term use. Since the sealing gasket at the connection between the butterfly valve and the pipeline will be corroded and worn for a long time, it is easy to cause the butterfly valve to leak, which in turn brings inconvenience to people's production and life.

[0004] Therefore, in view of the above-mentioned related technologies, it is necessary for us to propose an integrated butterfly valve with a leak-proof structure. Utility Model Content

[0005] The purpose of the present utility model is to provide an integrated butterfly valve with a leak-proof structure to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An integrated butterfly valve with a leak-proof structure, comprising:

[0008] Butterfly valve seat;

[0009] A valve body, wherein the valve body is arranged on the butterfly valve seat and is in communication with the butterfly valve seat;

[0010] A valve stem is disposed in the valve body through a connecting hole, one end of the valve stem extends into the butterfly valve seat, and a butterfly plate is fixedly sleeved on the outside of the valve stem in the butterfly valve seat;

[0011] The switch valve is arranged at one end of the valve body and is used to drive the valve stem to rotate;

[0012] Two mounting plates, both of which are fixedly sleeved on the outer wall of the butterfly valve seat, and a plurality of mounting holes are opened in the two mounting plates;

[0013] an annular rubber pad, the annular rubber pad being detachably connected to the mounting plate via an annular groove;

[0014] A tightening assembly is provided on the mounting plate and is used for performing a secondary position limiting operation on two mounting plates fixedly connected to the pipeline.

[0015] As a further solution of the present invention: the tightening assembly includes four positioning seats, and the four positioning seats are divided into groups of two and are fixedly welded on two mounting plates. A positioning hole is opened in the positioning seat, and a threaded ring is fixedly installed in the positioning hole. A threaded rod is screwed in the thread of the threaded ring, and one end of the threaded rod is fixedly connected to the limiting seat.

[0016] As a further solution of the present invention: the ends of the plurality of threaded rods away from the positioning seat are fixedly connected to a turntable, and the plurality of limiting seats are provided with anti-slip rubber pads.

[0017] As a further solution of the present invention: a plurality of mounting holes are provided in the mounting plate and are all adapted to the bolt fasteners.

[0018] As a further solution of the present invention, two connecting pipes are connected in the butterfly valve seat.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When in use, the butterfly valve seat is fixedly connected between the two pipes through the cooperation of the mounting plate, the mounting holes and a plurality of bolt fasteners. At the same time, the sealing gasket provided in the detachable connection in the mounting plate can enhance the sealing of the connection and avoid leakage at the connection between the butterfly valve seat and the pipe. Secondly, a tightening assembly can be provided, and with the cooperation of a plurality of positioning seats, threaded rings, threaded rods and limit seats, the positioning seat and the pipe connected to the butterfly valve seat can be tightly fitted to achieve the purpose of secondary limiting of the pipe and the butterfly valve seat. The overall structure is relatively simple. Compared with the existing technology, it ensures the sealing of the connection between the butterfly valve seat and the pipe, avoids leakage after long-term use, has good sealing and improves its usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall main view of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in a partial cross-sectional view of the entire main view;

[0023] Figure 3 This is a schematic diagram of the structure in which the positioning seat, the limiting seat, the threaded ring, etc. cooperate with each other in the utility model;

[0024] Figure 4 It is a schematic diagram of the overall main plan structure of the utility model.

[0025] In the figure: 1. Butterfly valve seat; 2. Valve body; 3. Valve stem; 4. Butterfly plate; 5. On-off valve; 6. Mounting plate; 7. Mounting hole; 8. Annular rubber pad; 9. Positioning seat; 10. Threaded ring; 11. Threaded rod; 12. Limit seat; 13. Turntable; 14. Anti-slip rubber pad; 15. Connecting pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The present application is further described in detail below with reference to the accompanying drawings.

[0028] See also Figures 1 to 4 In an embodiment of the present invention, an integrated butterfly valve with a leak-proof structure includes:

[0029] Butterfly valve seat 1;

[0030] The valve body 2 is arranged on the butterfly valve seat 1, and the valve body 2 is connected to the butterfly valve seat 1;

[0031] The valve stem 3 is arranged in the valve body 2 through the connecting hole, one end of the valve stem 3 extends into the butterfly valve seat 1, and a butterfly plate 4 is fixedly sleeved on the outside of the valve stem 3 located in the butterfly valve seat 1;

[0032] The switch valve 5 is provided at one end of the valve body 2 and is used to drive the valve stem 3 to rotate;

[0033] Two mounting plates 6, both of which are fixedly sleeved on the outer wall of the butterfly valve seat 1, and a plurality of mounting holes 7 are opened in the two mounting plates 6;

[0034] an annular rubber pad 8, which is detachably connected to the mounting plate 6 through an annular groove;

[0035] The tightening assembly is arranged on the mounting plate 6 and is used to perform a secondary limiting operation on the two mounting plates 6 fixedly connected to the pipeline.

[0036] It should also be noted that the tightening assembly includes four positioning seats 9, which are divided into groups of two and are fixedly welded on two mounting plates 6. A positioning hole is opened in the positioning seat 9, and a threaded ring 10 is fixedly installed in the positioning hole. A threaded rod 11 is screwed into the threaded ring 10, and one end of the threaded rod 11 is fixedly connected to the limiting seat 12.

[0037] Through the setting of this structure, after the pipeline is connected to the butterfly valve seat 1, the turntable 13 can be rotated, and the limit seat 12 can be moved under the mutual cooperation of the turntable 13, the threaded rod 11 and the threaded ring 10, so that the positioning seat 9 and the pipeline connected to the butterfly valve seat 1 are tightly fitted, thereby achieving the purpose of secondary limiting of the pipeline and improving the sealing of the connection between the butterfly valve seat 1 and the pipeline.

[0038] It also needs to be further explained that the ends of the multiple threaded rods 11 away from the positioning seat 9 are fixedly connected to the turntable 13, and the multiple positioning seats 9 are provided with anti-slip rubber pads 14 to increase the external friction of their limit seats 12 to prevent their limit seats 12 from slipping during use. Multiple mounting holes 7 are opened in the mounting plate 6, which are all compatible with bolt fasteners, and there are two connecting pipes 155 connected in the butterfly valve seat 1.

[0039] In this embodiment, the butterfly valve seat 1, the switch valve 5, etc. are all well-known equipment purchased directly from the market by technical personnel in this field. They can be customized or selected according to actual needs. Here we only use them and do not make any structural and functional improvements to them. We will not go into details here. The butterfly valve seat 1, the switch valve 5, etc. are all provided with a control switch matching them. The installation position of the control switch is selected according to actual use requirements to facilitate the operator to operate and control. The technology is very mature and can be implemented.

[0040] The implementation principle of an integrated butterfly valve with a leak-proof structure in an embodiment of the present application is as follows: first, the butterfly valve seat 1 can be fixedly connected between the two pipes through the mutual cooperation of the mounting plate 6, the mounting hole 7 and a plurality of bolt fasteners, and at the same time, the sealing gasket detachably connected in the mounting plate 6 is used to enhance the sealing of the connection, thereby avoiding leakage at the connection between the butterfly valve seat 1 and the pipe, and then the positioning seat 9 and the outside of the pipe connected to the butterfly valve seat 1 are tightly fitted through the mutual cooperation of a plurality of positioning seats 9, threaded rings 10, threaded rods 11 and limit seats 12, which plays a role of secondary tightening and limiting the connection of the butterfly valve seat 1, thereby avoiding leakage after long-term use.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated butterfly valve with a leak-proof structure, characterized in that: include: Butterfly valve seat (1); A valve body (2), wherein the valve body (2) is arranged on the butterfly valve seat (1), and the valve body (2) is connected to the butterfly valve seat (1); A valve stem (3), wherein the valve stem (3) is arranged in the valve body (2) through a connecting hole, one end of the valve stem (3) extends into the butterfly valve seat (1), and a butterfly plate (4) is fixedly sleeved on the outside of the valve stem (3) located in the butterfly valve seat (1); An on-off valve (5), the on-off valve (5) being arranged at one end of the valve body (2), and the on-off valve (5) being used to drive the valve stem (3) to rotate; Two mounting plates (6), both of which are fixedly sleeved on the outer wall of the butterfly valve seat (1), and a plurality of mounting holes (7) are provided in the two mounting plates (6); an annular rubber pad (8), the annular rubber pad (8) being detachably connected to the mounting plate (6) via an annular groove; A tightening assembly is provided on a mounting plate (6) and is used for performing a secondary position limiting operation on two mounting plates (6) fixedly connected to pipelines.

2. The integrated butterfly valve with a leak-proof structure according to claim 1, characterized in that: The tightening assembly comprises four positioning seats (9), which are divided into two groups and fixedly welded on two mounting plates (6). A positioning hole is provided in the positioning seat (9), a threaded ring (10) is fixedly installed in the positioning hole, a threaded rod (11) is screwed into the threaded ring (10), and one end of the threaded rod (11) is fixedly connected to a limiting seat (12).

3. The integrated butterfly valve with a leak-proof structure according to claim 2, characterized in that: The ends of the plurality of threaded rods (11) away from the positioning seat (9) are all fixedly connected to a turntable (13), and the plurality of limiting seats (12) are all provided with anti-slip rubber pads (14).

4. The integrated butterfly valve with a leak-proof structure according to claim 1, characterized in that: A plurality of mounting holes (7) are provided in the mounting plate (6), all of which are compatible with bolt fasteners.

5. The integrated butterfly valve with a leak-proof structure according to claim 1, characterized in that: Two connecting pipes (15) are connected in the butterfly valve seat (1).

Images