Flange type straight-through ball valve

Abstract

The utility model discloses a flange type straight-through ball valve, and relates to the technical field of straight-through ball valves, the flange type straight-through ball valve comprises a ball valve shell, a ball valve body is arranged in the ball valve shell, the top of the ball valve body is fixedly connected with a ball valve driving rod, the ball valve shell comprises a shell body, a sealing shell is installed on the shell body, and the sealing shell is fixedly connected with the ball valve driving rod. A rotatable sealing block is arranged in the sealing shell, sealing rings are installed on the outer wall and the bottom of the sealing block in an embedded mode, and a connecting plate is fixedly connected to the ball valve driving rod. The ball valve shell composed of the shell body, the sealing shell, the sealing block and the sealing ring is arranged, and the connecting plate and the sealing block are fixedly installed together, so that the sealing effect is good when the device is used, the water leakage risk at the joint of the ball valve body and the ball valve driving rod is greatly reduced, and the service life of the device is prolonged. And the using effect of the device is effectively improved, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of straight-through ball valves, in particular to a flange-type straight-through ball valve. Background Art

[0002] Ball valves are valves often used by modern people. The stainless steel sanitary ball valves are made of SUS304 and 316L, which can meet the special requirements of various media in the food and biopharmaceutical fields. Their smooth, seamless, and self-draining process fluid channels are also very suitable for the needs of steam and in-place cleaning. During the manufacturing process, quality control is strictly carried out according to FDA requirements, and computer-aided three-dimensional design is adopted, which is manufactured for GMP requirements. A ball valve is a valve in which the closing member (ball) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Among them, the hard-sealed V-type ball valve has a strong shearing force between the V-type ball core and the metal valve seat with surfacing hard alloy, and is especially suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium on the pipeline, but also close any channel to connect the other two channels. Generally, this type of valve should be installed horizontally in the pipeline. Ball valves are classified according to the driving method into: pneumatic ball valves, electric ball valves, and manual ball valves.

[0003] In the utility model with the Chinese patent publication number CN207621406U, a flange-type straight-through ball valve is proposed. The ball valve is provided with a filter screen, which can prevent impurities from entering the inside of the ball, avoiding the situation that this ball valve cannot be used due to impurity blockage; a locking rod mechanism is provided, which can lock the valve stem when the liquid flow is not required, avoiding the liquid flow caused by the rotation of the valve stem. However, through the study of the prior art, it is found that there is a risk of water leakage at the connection between the ball valve body and the ball valve drive rod. Therefore, the utility model hereby provides a flange-type straight-through ball valve. Content of the Utility Model

[0004] Technical Problem to be Solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a flange-type straight-through ball valve.

[0006] Technical Solution

[0007] To achieve the above object, the present utility model provides the following technical solution: A flange-type straight-through ball valve, including a ball valve housing, inside which a ball valve body is provided. At the top of the ball valve body, a ball valve driving rod is fixedly connected. The ball valve housing includes a housing body, on which a sealing housing is installed. Inside the sealing housing, a rotatable sealing block is provided. Sealing rings are embedded in the outer wall and bottom of the sealing block. A connecting plate is fixedly connected to the ball valve driving rod, and the connecting plate and the sealing block are fixedly connected together by screws. By providing a ball valve housing composed of the housing body, the sealing housing, the sealing block and the sealing ring, and fixing the connecting plate and the sealing block together, the sealing effect during the use of the device is better, thus greatly reducing the risk of water leakage at the connection between the ball valve body and the ball valve driving rod, effectively improving the use effect of the device and enhancing the practicability of the device.

[0008] Preferably, an installation hole is provided on the connecting plate, and a threaded hole is provided in the sealing block. The screw passes through the installation hole and is threadedly connected inside the threaded hole.

[0009] Preferably, a first embedding groove and a second embedding groove for installing two sealing rings are provided inside the sealing block.

[0010] Preferably, a sealing groove for installing a sealing ring is provided at the top of the housing body.

[0011] Preferably, a second sealing groove for installing a sealing ring is provided inside the sealing housing.

[0012] Preferably, the sealing housing is composed of a housing and a cover, and the housing and the cover are fixedly connected together by a second screw.

[0013] Preferably, the housing body is composed of a large housing and a small housing, and the large housing and the small housing are fixedly connected together by a third screw.

[0014] Beneficial effects:

[0015] Compared with the prior art, the flange-type straight-through ball valve has the following beneficial effects:

[0016] By providing a ball valve housing composed of the housing body, the sealing housing, the sealing block and the sealing ring, and fixing the connecting plate and the sealing block together, the sealing effect during the use of the device is better, thus greatly reducing the risk of water leakage at the connection between the ball valve body and the ball valve driving rod, effectively improving the use effect of the device and enhancing the practicability of the device. Description of the drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the present invention;

[0019] Figure 2 It is of the present invention Figure 2 The enlarged schematic diagram of the structure at A in it;

[0020] Figure 3 It is a schematic structure diagram of the present invention.

[0021] In the figure:

[0022] 1. Ball valve housing; 2. Ball valve body; 3. Ball valve drive rod; 101. Housing body; 102. Sealing housing; 103. Sealing block; 104. Sealing ring; 301. Connecting plate; 302. Screw; 3011. Mounting hole; 1031. Threaded hole; 1032. First embedding groove; 1033. Second embedding groove; 1014. Sealing groove; 1021. Second sealing groove; 1022. Housing; 1023. Sealing cover; 1024. Second screw; 1011. Large housing; 1012. Small housing. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 3As shown in the figure, the present utility model provides a technical solution: a ball valve housing 1, inside which there is a ball valve body 2. At the top of the ball valve body 2, there is a fixedly connected ball valve drive rod 3. The ball valve housing 1 includes a housing body 101, on which there is a sealed housing 102. Inside the sealed housing 102, there is a rotatable sealing block 103. Sealing rings 104 are embedded in the outer wall and bottom of the sealing block 103. A connecting plate 301 is fixedly connected to the ball valve drive rod 3, and the connecting plate 301 and the sealing block 103 are fixedly connected together by screws 302. By providing the ball valve housing 1 composed of the housing body 101, the sealed housing 102, the sealing block 103 and the sealing rings 104, and making the connecting plate 301 and the sealing block 103 fixedly installed together, the sealing effect during the use of the device is better, thus greatly reducing the risk of water leakage at the connection between the ball valve body 2 and the ball valve drive rod 3, effectively improving the use effect of the device and enhancing the practicality of the device.

[0025] Please refer specifically to Figure 2 and Figure 3 , an installation hole 3011 is opened on the connecting plate 301, a threaded hole 1031 is opened in the sealing block 103, the screw 302 passes through the installation hole 3011 and is threadedly connected inside the threaded hole 1031. Inside the sealing block 103, there are a first embedding groove 1032 and a second embedding groove 1033 for installing two sealing rings 104.

[0026] Please refer specifically to Figure 3 , a sealing groove 1014 for installing the sealing ring 104 is opened at the top of the housing body 101, a second sealing groove 1021 for installing the sealing ring 104 is opened inside the sealed housing 102. The sealed housing 102 is composed of a housing 1022 and a cover 1023, and the housing 1022 and the cover 1023 are fixedly connected together by a second screw 1024. The housing body 101 is composed of a large housing 1011 and a small housing 1012, and the large housing 1011 and the small housing 1012 are fixedly connected together by a third screw 1013.

[0027] Working principle: The ball valve housing 1 is composed of the housing body 101, the sealed housing 102, the sealing block 103 and the sealing rings 104, and the connecting plate 301 and the sealing block 103 are fixedly installed together, so that the sealing effect during the use of the device is better, thus greatly reducing the risk of water leakage at the connection between the ball valve body 2 and the ball valve drive rod 3, effectively improving the use effect of the device and enhancing the practicality of the device.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange type through ball valve, comprising a ball valve housing (1), characterized in that: Inside the ball valve housing (1), there is a ball valve body (2). At the top of the ball valve body (2), there is a fixedly connected ball valve drive rod (3). The ball valve housing (1) includes a housing body (101), on which a sealing housing (102) is installed. Inside the sealing housing (102), there is a rotatable sealing block (103). Sealing rings (104) are embedded in the outer wall and bottom of the sealing block (103). A connecting plate (301) is fixedly connected to the ball valve drive rod (3), and the connecting plate (301) and the sealing block (103) are fixedly connected together by screws (302).

2. The flanged straight-through ball valve according to claim 1, wherein: An installation hole (3011) is formed in the connecting plate (301), and a threaded hole (1031) is formed in the sealing block (103). The screw (302) passes through the installation hole (3011) and is threadedly connected inside the threaded hole (1031).

3. A flanged straight-through ball valve according to claim 1, characterized in that: Inside the sealing block (103), there are a first embedding groove (1032) and a second embedding groove (1033) for installing two sealing rings (104).

4. A flanged straight-through ball valve according to claim 1, characterized in that: At the top of the housing body (101), there is a sealing groove (1014) for installing the sealing ring (104).

5. A flanged straight-through ball valve according to claim 1, characterized in that: Inside the sealing housing (102), there is a second sealing groove (1021) for installing the sealing ring (104).

6. A flange-type straight-through ball valve according to claim 1, characterized in that: The sealing housing (102) is composed of a housing (1022) and a cover (1023), and the housing (1022) and the cover (1023) are fixedly connected together by a second screw (1024).

7. A flange-type straight-through ball valve according to claim 1, characterized in that: The housing body (101) is composed of a large housing (1011) and a small housing (1012), and the large housing (1011) and the small housing (1012) are fixedly connected together by a third screw (1013).

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