Wear-resistant ball valve

Abstract

The utility model provides a wear-resistant ball valve, and belongs to the technical field of ball valves. Comprising a valve seat body, a plurality of branch channels are arranged on the periphery of the side face of the valve seat body in a surrounding mode, a main channel communicated with the branch channels is arranged at the bottom of the valve seat body, and a ball separating the branch channels from the main channel is arranged in the middle of the interior of the valve seat body. A flow guide channel for communicating one branch channel with one main channel is formed in the middle of the ball body; a corrugated pipe is arranged in the branch channel, abutting flanges are fixed to the two ends of the corrugated pipe, one end of the corrugated pipe is matched with a scraper valve seat, and the scraper valve seat is tightly attached to the surface of the ball body. The sealing ring is good in sealing effect, high in wear resistance and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a wear-resistant ball valve. Background Art

[0002] A ball valve is a type of valve. It is called a ball valve because it has a sphere inside as the main structure for controlling the valve. The outside of the valve ball is connected to a valve stem. When the valve stem is turned, the valve ball can be driven to rotate, thereby achieving the purpose of controlling the operation of the ball valve.

[0003] At present, in actual use, the existing ball valves are only provided with bellows for the connection between the relevant channels and the ball. However, due to the limited installation area, the installation of the bellows is not stable enough, which in turn affects the connection effect between the branch channel and the surface of the ball, and ultimately causes poor sealing effect. There is also a certain amount of wear between the ball and the valve cover, which affects the service life.

[0004] Therefore, the present application provides a wear-resistant ball valve to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a wear-resistant ball valve to solve the problems in existing ball valves of limited sealing effect and wear between the ball and the valve cover, which affects the service life.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A wear-resistant ball valve comprises a valve seat body, the side of the valve seat body being surrounded by a plurality of branch channels, the bottom of the valve seat body being provided with a main channel connected to the plurality of branch channels, a sphere being provided in the middle of the valve seat body to separate the branch channels from the main channel, and a guide channel being provided in the middle of the sphere for connecting one of the branch channels with one of the main channels;

[0008] A bellows is provided in the branch channel, abutment flanges are fixed at both ends of the bellows, and a scraper valve seat is matched at one end of the bellows, and the scraper valve seat is in close contact with the surface of the sphere.

[0009] Optionally, a valve cover is fixed to the top of the valve seat body, a valve stem seat is fixed to the top of the sphere, the top end of the valve stem seat passes through the middle of the upper end surface of the valve cover, and an extension rod is inserted and installed.

[0010] Optionally, the guide channel is an inverted L-shaped structure, and one end opening of the guide channel is docked with one of the multiple branch channels, and the other end opening of the guide channel is always docked with the main channel.

[0011] Optionally, the scraper valve seat is an annular structure adapted to the bellows port, and a scraper portion is provided on a side of the scraper valve seat facing the sphere, and the scraper portion abuts against an outer surface of the sphere.

[0012] Optionally, the lower end sleeve of the valve stem seat is provided with an anti-wear gasket, which is fixed to the upper end surface of the sphere and located at the lower end surface of the valve cover.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above scheme, thanks to the setting of the abutting flanges at both ends of the bellows, compared with the simple setting of the bellows in the existing technology, the installation area at both ends can be increased, making the installation of the bellows more stable. Combined with the setting of the scraper valve seat, the branch channel can be tightly connected with the surface of the sphere through the bellows, the abutting flange and the scraper valve seat, and the sealing effect is good.

[0015] In the above solution, thanks to the provision of the anti-wear gasket, the wear between the ball and the valve cover can be effectively reduced, thereby facilitating the improvement of the service life of the device.

[0016] In summary, the device has good sealing effect, strong wear resistance and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and enable those skilled in the relevant art to make and use the invention.

[0018] Figure 1 It is a schematic diagram of the structure of a wear-resistant ball valve;

[0019] Figure 2 This is a schematic diagram of the internal structure of a wear-resistant ball valve;

[0020] Figure 3 For wear-resistant ball valves Figure 2 A magnified schematic diagram of the structure at A in the middle;

[0021] Figure 4 A schematic diagram of the structure of a bellows for a wear-resistant ball valve;

[0022] Figure 5 Schematic diagram of the structure of the scraper valve seat of the wear-resistant ball valve.

[0023] [Reference Signs]

[0024] 1. Valve seat body; 101. Branch channel; 102. Main channel; 2. Valve cover; 3. Valve stem seat; 301. Extension rod; 4. Ball; 401. Guide channel; 5. Anti-wear gasket; 6. Bellows; 601. Abutment flange; 7. Scraper valve seat; 701. Scraper part.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, devices and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0026] The following describes a wear-resistant ball valve provided by the present invention in detail with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0027] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0030] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a wear-resistant ball valve, including a valve seat body 1, wherein a plurality of branch channels 101 are arranged around the side of the valve seat body 1, and a main channel 102 connected to the plurality of branch channels 101 is arranged at the bottom of the valve seat body 1, and a sphere 4 is arranged in the middle of the valve seat body 1 to separate the branch channels 101 and the main channel 102, and a guide channel 401 for connecting one of the branch channels 101 and one of the main channels 102 is opened in the middle of the sphere 4, and a valve cover 2 is fixed on the top of the valve seat body 1, and a valve stem seat 3 is fixed on the top of the sphere 4, and the top end of the valve stem seat 3 passes through the middle of the upper end surface of the valve cover 2, and an extension rod 301 is installed thereon. Specifically, the lower end of the valve stem seat 3 is provided with an anti-wear gasket 5, which is fixed to the upper end surface of the ball 4 and located at the lower end surface of the valve cover 2. The anti-wear gasket 5 can reduce the wear between the ball 4 and the valve cover 2.

[0032] like Figure 2 and Figure 3 As shown, the guide channel 401 is an inverted L-shaped structure, and one end opening of the guide channel 401 is docked with one of the multiple branch channels 101, and the other end opening of the guide channel 401 is always docked with the main channel 102, thereby forming a multi-way ball valve. Specifically, in this embodiment, three branch channels 101 are provided.

[0033] Cooperate Figure 4 and Figure 5 The branch channel 101 is shown as being provided with a bellows 6, with abutment flanges 601 fixed to both ends of the bellows 6. A scraper valve seat 7 is fitted at one end of the bellows 6, which is in close contact with the surface of the sphere 4. In specific implementation, the scraper valve seat 7 is an annular structure adapted to fit the port of the bellows 6. The side of the scraper valve seat 7 facing the sphere 4 is provided with a scraper portion 701, which abuts the outer surface of the sphere 4. Thus, the cooperation between the bellows 6 and the scraper valve seat 7 effectively ensures a sealed connection between the branch channel 101 and the sphere 4.

[0034] The working principle of the present utility model is that the wear-resistant ball valve is installed by providing abutment flanges 601 at both ends of the bellows 6 during use. Compared with the technical solution of simply providing a bellows 6 in the prior art, this structure can increase the installation area at both ends of the bellows 6, making the installation of the bellows 6 more stable. Combined with the provision of the scraper valve seat 7, the branch channel 101 can be closely connected to the surface of the ball 4 through the bellows 6, the abutment flange 601 and the scraper valve seat 7, achieving a good sealing effect. In addition, the anti-wear gasket 5 is provided between the valve cover 2 and the ball 4 to reduce wear, thereby helping to increase the service life of the device.

[0035] In summary, the device has good sealing effect, strong wear resistance and long service life.

[0036] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A wear-resistant ball valve, comprising a valve seat body (1), characterized in that: The side of the valve seat body (1) is surrounded by a plurality of branch channels (101), the bottom of the valve seat body (1) is provided with a main channel (102) connected to the plurality of branch channels (101), a sphere (4) is provided in the middle of the valve seat body (1) to separate the branch channels (101) from the main channel (102), and a guide channel (401) is provided in the middle of the sphere (4) for connecting one of the branch channels (101) and one of the main channels (102); A bellows (6) is provided in the branch channel (101), abutment flanges (601) are fixed at both ends of the bellows (6), and a scraper valve seat (7) is fitted at one end of the bellows (6), and the scraper valve seat (7) is in close contact with the surface of the sphere (4).

2. The wear-resistant ball valve according to claim 1, characterized in that A valve cover (2) is fixed to the top of the valve seat body (1), a valve stem seat (3) is fixed to the top of the sphere (4), the top end of the valve stem seat (3) passes through the middle of the upper end surface of the valve cover (2) and is plugged with an extension rod (301).

3. The wear-resistant ball valve according to claim 2, characterized in that The guide channel (401) is an inverted L-shaped structure, and one end opening of the guide channel (401) is docked with one of the plurality of branch channels (101), while the other end opening of the guide channel (401) is always docked with the main channel (102).

4. The wear-resistant ball valve according to claim 1, characterized in that The scraper valve seat (7) is an annular structure adapted to the port of the bellows (6), and a scraper portion (701) is provided on the side of the scraper valve seat (7) facing the sphere (4), and the scraper portion (701) abuts against the outer surface of the sphere (4).

5. The wear-resistant ball valve according to claim 2, characterized in that: The lower end sleeve of the valve stem seat (3) is provided with an anti-wear gasket (5), and the anti-wear gasket (5) is fixed to the upper end surface of the sphere (4) and is located on the lower end surface of the valve cover (2).

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