Valve seat structure for ball valve

Abstract

The utility model provides a valve seat structure for a ball valve, which relates to the technical field of ball valves and comprises a valve seat body, a connecting mechanism is mounted on the right side of the valve seat body, a connecting flange is fixedly connected to the right side of the connecting mechanism, and the inner side of the connecting flange extends to the right side to be provided with a pipeline body. The connecting mechanism comprises a damping assembly, supporting assemblies are fixedly connected to the two sides of the damping assembly, first sealing assemblies are clamped to the right side faces of the supporting assemblies, and the first sealing assemblies are fixedly connected with the connecting flanges. By means of the design, the sealing effect between the valve seat and a pipeline can be effectively guaranteed, impact is effectively resisted, and therefore leakage points are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field especially relates to a valve seat structure for ball valve. BACKGROUND

[0002] Ball valve, is the opening and closing piece (ball) by the valve rod drive, and around the ball valve axis rotation movement's valve, and ball valve can also be used for the adjustment and control of fluid, and the valve seat is used for supporting the valve core full close position, and constitutes the sealing pair, the valve seat diameter is the maximum flow diameter of valve generally,

[0003] In the prior art, ball valve is used for adjusting the opening and closing flow rate, and the valve seat of the ball valve is used to support the opening and closing piece and the valve rod, and the ball valve is connected with the pipeline for fluid to pass through, and the existing valve seat is connected with the pipeline through the flange and the sealing rubber ring, so that the sealing effect between the valve seat and the pipeline is guaranteed for a short time, but the valve seat and the pipeline will be loose due to the impact of fluid for a long time, thereby causing leakage. SUMMARY

[0004] The utility model discloses a valve seat structure for ball valve, which can support the opening and closing piece and the valve rod, and can prevent the valve seat and the pipeline from being loose due to the impact of fluid for a long time.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A valve seat structure for ball valve, comprising a valve seat body, a connecting mechanism is installed on the right side of the valve seat body, a connecting flange is fixedly connected to the right side of the connecting mechanism, a pipeline body is installed on the inner side of the connecting flange extending to the right side of the connecting flange, and a sealing rubber body is bonded to the inner side of the connecting flange on the periphery of the pipeline body.

[0007] The connecting mechanism comprises a damping assembly, support assemblies are fixedly connected to the two sides of the damping assembly, a first sealing assembly is clamped to the support assembly on the right side, and the first sealing assembly is fixedly connected to the connecting flange, a second sealing assembly is clamped to the support assembly on the left side, and the second sealing assembly is located on the right side of the valve seat body.

[0008] As the preferred scheme of the utility model, the both sides of the valve seat body are fixedly connected with connecting discs, and first connecting holes are formed through the periphery of the connecting discs.

[0009] The technical effect of the further scheme is that the first connecting hole can be fixed with the second connecting hole through the fastener, so that the connecting mechanism can be fixed through the connecting flange, thereby ensuring the effect of the connecting mechanism.

[0010] As the preferred scheme of the utility model, the inside of the valve seat body extends to the top and is rotationally connected with a valve rod, and the top of the valve rod is fixedly connected with an adjusting handle.

[0011] As the preferred scheme of the utility model, the damping assembly comprises a damping connecting ring, and the damping connecting ring is made of fluorine rubber material, and the inside of the damping connecting ring is clamped with a plurality of first rubber fillings.

[0012] The technical effect of the further scheme is that the damping connecting ring has good elasticity, and the elasticity of the damping connecting ring can be further increased through the first rubber filling, so that the damping between the pipeline body and the valve seat body can be effectively realized, and the loosening and water leakage of the connecting part can be prevented.

[0013] As the preferred scheme of the utility model, the first sealing assembly comprises a first sealing gasket, and the first sealing gasket is made of polytetrafluoroethylene material, the inside of the first sealing gasket is clamped with a plurality of second rubber fillings, and the first sealing gasket is clamped with the connecting flange.

[0014] As the preferred scheme of the utility model, the second sealing assembly comprises a second sealing gasket, and the second sealing gasket is made of polytetrafluoroethylene material, the inside of the second sealing gasket is clamped with a plurality of third rubber fillings, and the second sealing gasket is clamped with the connecting disc.

[0015] As the preferred scheme of the utility model, the supporting assembly comprises a supporting sheet, and the supporting sheet is made of metal material, the inside of the supporting sheet extends to the both sides and is bonded with a sealing ring, the sealing ring is made of fluorine rubber material, and the supporting sheet is clamped with the damping connecting ring.

[0016] As the preferred scheme of the utility model, the periphery of the connecting flange is formed with a second connecting hole.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a valve seat main body and pipeline body are connected through the connecting mechanism, and the connecting mechanism can effectively play the role of shock absorption and sealing, thereby effectively guaranteeing that the connecting place between the valve seat main body and the pipeline body can effectively resist impact and prevent water leakage, the shock absorption assembly can effectively play the role of shock absorption, and the force when the fluid in the pipeline body impacts is buffered through elasticity, and the support assembly can effectively support the shock absorption assembly and the first sealing assembly and the second sealing assembly, and the first sealing assembly and the second sealing assembly can respectively seal the connecting flange and the connecting disc, thereby effectively playing the role of sealing. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the valve seat main body structure schematic diagram of the utility model;

[0021] Figure 3 It is the connecting mechanism structure schematic diagram of the utility model;

[0022] Figure 4 It is the connecting mechanism split structure schematic diagram of the utility model;

[0023] Figure 5 It is the connecting mechanism plane structure schematic diagram of the utility model.

[0024] Legend explains: 1, valve seat main body;11, connecting disc;12, first connecting hole;13, valve stem;14, adjusting handle;2, connecting mechanism;21, shock absorption assembly;211, shock absorption connecting ring;212, first rubber filling;22, support assembly;221, support sheet;222, sealing ring;23, first sealing assembly;231, first sealing washer;232, second rubber filling;24, second sealing assembly;241, second sealing washer;242, third rubber filling;3, connecting flange;31, second connecting hole;4, pipeline body;5, sealing glue. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all the other embodiments obtained by the ordinary skilled in the art without creative work on the basis of the embodiments in the utility model belong to the range of the utility model protection.

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1:

[0030] like Figures 1-5 As shown, this utility model provides a technical solution: a valve seat structure for a ball valve, including a valve seat body 1, a connecting mechanism 2 installed on the right side of the valve seat body 1, a connecting flange 3 fixedly connected to the right side of the connecting mechanism 2, a pipe body 4 installed on the inner side of the connecting flange 3 extending to the right side, a sealing adhesive 5 bonded to the periphery of the pipe body 4 and located inside the connecting flange 3, the connecting mechanism 2 includes a shock-absorbing component 21, a support component 22 fixedly connected to both sides of the shock-absorbing component 21, a first sealing component 23 snapped onto the right side support component 22 and the first sealing component 23 fixedly connected to the connecting flange 3, and a second sealing component 24 snapped onto the left side support component 22 and the second sealing component 24 located on the right side of the valve seat body 1.

[0031] Example 2:

[0032] like Figures 1-5 As shown, connecting discs 11 are fixed to both sides of the valve seat body 1, and first connecting holes 12 are opened through the periphery of the connecting discs 11 to facilitate connection with the connecting flange 3.

[0033] The valve seat body 1 extends to the top and is rotatably connected to a valve stem 13. An adjusting handle 14 is fixed to the top of the valve stem 13, which facilitates the adjustment of the opening and closing of the ball valve.

[0034] The damping assembly 21 comprises a damping connecting ring 211 made of fluororubber, and a plurality of first rubber fillings 212 are clamped in the damping connecting ring 211.

[0035] The first sealing assembly 23 comprises a first sealing gasket 231 made of polytetrafluoroethylene, a plurality of second rubber fillings 232 are clamped in the first sealing gasket 231, and the first sealing gasket 231 is clamped with the connecting flange 3.

[0036] The second sealing assembly 24 comprises a second sealing gasket 241 made of polytetrafluoroethylene, a plurality of third rubber fillings 242 are clamped in the second sealing gasket 241, and the second sealing gasket 241 is clamped with the connecting disc 11.

[0037] The support assembly 22 comprises a support sheet 221 made of metal, and a sealing ring 222 made of fluororubber is bonded to the inner side of the support sheet 221 extending to both sides, and the support sheet 221 is clamped with the damping connecting ring 211 to effectively support the damping assembly 21, the first sealing assembly 23 and the second sealing assembly 24.

[0038] The connecting flange 3 is provided with a second connecting hole 31.

[0039] The utility model discloses a work flow: when using a valve seat structure for ball valve, first, the connecting mechanism 2 is placed in the connecting disc 11 one side of valve seat main part 1, and the hole of connecting mechanism 2 is aligned first connecting hole 12, after finishing, take out the connecting flange 3, after taking out, through the fixed part passes through the second connecting hole 31 of connecting flange 3 and first connecting hole 12, to this to connect the flange 3 and connecting mechanism 2 with valve seat main part 1 and be fixed together, subsequently, pipeline body 4 is fixed in the inner side of connecting flange 3 through sealing gum 5, when pipe network arrangement is completed, can pass through valve stem 13 and adjusting handle 14 to control ball valve to open, along with the opening of ball valve, the fluid in pipeline body 4 will pass through valve seat main part 1, impact the connecting place of valve seat main part 1 and pipeline body 4, at this moment, the shock absorbing assembly 21 will shock absorbing, and first sealing assembly 23 and second sealing assembly 24 are sealed while shock absorbing, along with the movement of valve seat main part 1 and pipeline body 4 and move, in this way, can effectively guarantee the sealing effect, the utility model discloses the design can effectively guarantee the sealing effect between valve seat and pipeline, effectively resist impact, thereby effectively avoid appearing leakage point.

[0040] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve seat structure for a ball valve, comprising a valve seat body (1), characterized in that: The right side of the valve seat body (1) is provided with a connecting mechanism (2), the right side of the connecting mechanism (2) is fixedly connected with a connecting flange (3), the inner side of the connecting flange (3) extends to the right side and is provided with a pipeline body (4), and the outer periphery of the pipeline body (4) and the inner side of the connecting flange (3) are bonded with a sealing glue body (5). The connecting mechanism (2) comprises a damping assembly (21), both sides of the damping assembly (21) are fixedly connected with a supporting assembly (22), the supporting assembly (22) on the right side is clamped with a first sealing assembly (23), the first sealing assembly (23) is fixedly connected with the connecting flange (3), and the supporting assembly (22) on the left side is clamped with a second sealing assembly (24), and the second sealing assembly (24) is located on the right side of the valve seat body (1).

2. A valve seat structure for a ball valve according to claim 1, characterized in that: Both sides of the valve seat body (1) are fixedly connected with a connecting disc (11), and the outer periphery of the connecting disc (11) is provided with a first connecting hole (12).

3. A valve seat structure for a ball valve according to claim 1, characterized in that: The inner side of the valve seat body (1) extends to the top and is rotatably connected with a valve rod (13), and the top of the valve rod (13) is fixedly connected with an adjusting handle (14).

4. A valve seat structure for a ball valve according to claim 1, characterized in that: The damping assembly (21) comprises a damping connecting ring (211), and the damping connecting ring (211) is made of fluorine rubber material, and the inner side of the damping connecting ring (211) is clamped with a plurality of first rubber fillings (212).

5. A valve seat structure for a ball valve according to claim 4, characterized in that: The first sealing assembly (23) comprises a first sealing gasket (231), and the first sealing gasket (231) is made of polytetrafluoroethylene material, the inner side of the first sealing gasket (231) is clamped with a plurality of second rubber fillings (232), and the first sealing gasket (231) is clamped with the connecting flange (3).

6. A valve seat structure for a ball valve according to claim 2, characterized in that: The second sealing assembly (24) comprises a second sealing gasket (241), and the second sealing gasket (241) is made of polytetrafluoroethylene material, the inner side of the second sealing gasket (241) is clamped with a plurality of third rubber fillings (242), and the second sealing gasket (241) is clamped with the connecting disc (11).

7. A valve seat structure for a ball valve according to claim 4, characterized in that: The supporting assembly (22) comprises a supporting sheet (221), and the supporting sheet (221) is made of metal material, the inner side of the supporting sheet (221) extends to both sides and is bonded with a sealing ring (222), the sealing ring (222) is made of fluorine rubber material, and the supporting sheet (221) is clamped with the damping connecting ring (211).

8. A valve seat structure for a ball valve according to claim 1, characterized in that: The outer periphery of the connecting flange (3) is provided with a second connecting hole (31).

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