Valve rubber seat for ball valve

Abstract

The utility model relates to the technical field of valve rubber seats, in particular to a valve rubber seat for a ball valve, which comprises a valve casing and a rubber seat sleeve, the surface of the valve casing is fixedly connected with a connecting pipe, the inner side of the connecting pipe is connected with the rubber seat sleeve in an abutting mode, and the surface of the rubber seat sleeve is fixedly connected with a control sleeve. A ball is movably connected to the inner side of the valve shell, a pressing block is fixedly connected to the outer surface of the rubber base sleeve, a reinforcing plate is fixedly connected to the surface of the pressing block, and a through groove is formed in the surface of the rubber base sleeve. Under the abutting connection of the control sleeve and the connecting pipe and the connection of the through groove and the rubber seat sleeve, the passage connection between the control sleeve and the rubber seat sleeve is realized, the action volume of the rubber seat sleeve is changed, and the application range and the performance of the rubber seat sleeve in the connecting pipe are improved; the contact pressure between the rubber seat sleeve and the connecting pipe is improved, and the stability performance and effect of the rubber seat sleeve placed in the connecting pipe are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of valve rubber seats, in particular to a valve rubber seat for a ball valve. Background Art

[0002] The valve rubber seat is a removable surface component inside the valve, which is used to support the valve core in the fully closed position and form a sealing pair.

[0003] By using the valve rubber seat, the sealing performance of the valve is improved. However, when the existing valve rubber seat is used, the effective volume of the valve seat is constant and cannot be adjusted accordingly according to the use requirements, so the sealing range of use is limited. Utility Model Content

[0004] The utility model aims to provide a valve rubber seat for a ball valve to solve the problem in the background technology that the valve seat has a constant effective volume and cannot be adjusted accordingly according to usage requirements, and the sealing range of use is limited.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a valve rubber seat for a ball valve, comprising a valve shell and a rubber seat sleeve, the surface of the valve shell is fixedly connected with a connecting pipe, the inner side of the connecting pipe is abutted and connected with a rubber seat sleeve, the surface of the rubber seat sleeve is fixedly connected with a control sleeve, the inner side of the valve shell is movably connected with a ball, the outer surface of the rubber seat sleeve is fixedly connected with a pressure block, the surface of the pressure block is fixedly connected with a reinforcing plate, and the surface of the rubber seat sleeve is provided with a through groove.

[0006] Preferably, the valve housing is connected to the connecting pipe passage, and the rubber seat sleeve is in a circular ring shape.

[0007] Preferably, the rubber seat sleeves are distributed in two groups on both sides of the sphere, and the sphere acts on the inside of the valve housing in a spherical shape.

[0008] Preferably, the control sleeve is in a circular ring shape, and the control sleeve and the rubber seat sleeve are both made of rubber.

[0009] Preferably, the interior of the rubber seat sleeve is hollow, the interior of the control sleeve is hollow, and the control sleeve is abutted and connected via the rubber seat sleeve and the connecting pipe.

[0010] Preferably, the pressing blocks are in a semi-spherical shape, and the pressing blocks are evenly distributed on the outer surface of the rubber seat sleeve. The pressing blocks are abutted and connected with the inner wall of the rubber seat sleeve and the connecting pipe.

[0011] Preferably, the reinforcing plate is connected to the surface of the pressing block in a strip shape, and the control sleeve is connected via a through groove and a rubber seat sleeve passage.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the connection between the connecting pipe and the rubber seat sleeve, under the action of the rubber seat sleeve, the sealing performance of the ball in the valve housing is improved; through the connection between the rubber seat sleeve and the control sleeve, under the abutment connection between the control sleeve and the connecting pipe, the connection between the through groove and the rubber seat sleeve realizes the passage connection between the control sleeve and the rubber seat sleeve, changes the effective volume of the rubber seat sleeve, improves the use range and performance of the rubber seat sleeve in the connecting pipe, under the connection of the pressure block and the reinforcing plate, through the action of the pressure block, increases the contact pressure between the rubber seat sleeve and the connecting pipe, enhances the stability and effect of the rubber seat sleeve placed in the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a front view and cutaway perspective diagram of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a partially cutaway perspective view of the structure of the connecting pipe of the utility model;

[0017] Figure 4 It is a partial three-dimensional schematic diagram of the structure of the rubber seat cover of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. valve housing; 2. connecting pipe; 3. rubber seat sleeve; 4. control sleeve; 5. ball; 6. pressure block; 7. reinforcement plate; 8. through groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A valve rubber seat for a ball valve comprises a valve housing 1 and a rubber seat sleeve 3, wherein a connecting pipe 2 is fixedly connected to the surface of the valve housing 1, a rubber seat sleeve 3 is abuttedly connected to the inner side of the connecting pipe 2, a control sleeve 4 is fixedly connected to the surface of the rubber seat sleeve 3, a ball 5 is movably connected to the inner side of the valve housing 1, a pressing block 6 is fixedly connected to the outer surface of the rubber seat sleeve 3, a reinforcing plate 7 is fixedly connected to the surface of the pressing block 6, a through groove 8 is provided on the surface of the rubber seat sleeve 3, through the connection between the valve housing 1 and the ball 5, under the action of the ball 5, the effect of controlling the amount of the valve housing 1 passing through is achieved, and under the action of the rubber seat sleeve 3, the sealing performance of the ball 5 when used in the valve housing 1 is improved.

[0023] Furthermore, the valve housing 1 and the connecting pipe 2 are connected by a passage, and the rubber seat sleeve 3 is in a circular ring shape. Through the connection between the valve housing 1 and the connecting pipe 2, and the abutment connection between the connecting pipe 2 and the rubber seat sleeve 3, the closed sealing performance of the valve housing 1 channel is improved.

[0024] Furthermore, the rubber seat sleeves 3 are distributed in two groups on both sides of the sphere 5, and the sphere 5 acts spherically on the inside of the valve housing 1. Through the abutment connection between the rubber seat sleeves 3 and the connecting pipe 2, under the action of the sphere 5 and the rubber seat sleeves 3, the sealing performance of the sphere 5 in the valve housing 1 is improved.

[0025] Furthermore, the control sleeve 4 is in a circular ring shape, and the materials of the control sleeve 4 and the rubber seat sleeve 3 are both rubber. Through the connection between the rubber seat sleeve 3 and the control sleeve 4, under the action of the control sleeve 4, the effective volume of the rubber seat sleeve 3 is changed, thereby improving the performance and effect of the rubber seat sleeve 3 in the connecting pipe 2.

[0026] Furthermore, the interior of the rubber seat sleeve 3 is hollow, and the interior of the control sleeve 4 is hollow. The control sleeve 4 is connected to the connecting tube 2 through the abutment between the rubber seat sleeve 3 and the connecting tube 2. Through the abutment between the control sleeve 4 and the connecting tube 2, under the connection between the rubber seat sleeve 3 and the control sleeve 4, the control operation of the volume of the rubber seat sleeve 3 in the connecting tube 2 is completed.

[0027] Furthermore, the pressing block 6 is in a semi-spherical shape and is evenly distributed on the outer surface of the rubber seat sleeve 3. The pressing block 6 is connected by abutting the inner wall of the rubber seat sleeve 3 and the connecting tube 2. Through the connection between the rubber seat sleeve 3 and the pressing block 6, and under the connection between the pressing block 6 and the reinforcing plate 7, when the effective volume of the rubber seat sleeve 3 changes, under the action of the pressing block 6, the contact pressure between the rubber seat sleeve 3 and the connecting tube 2 is increased, thereby enhancing the stability and effect of the contact.

[0028] Furthermore, the reinforcing plate 7 is connected to the surface of the pressing block 6 in a strip shape, and the control sleeve 4 is connected to the rubber seat sleeve 3 through the through groove 8. Under the connection between the control sleeve 4 and the through groove 8, when the control sleeve 4 is squeezed through the action of the through groove 8, the effective volume of the rubber seat sleeve 3 changes, thereby improving the performance and effect of the rubber seat sleeve 3.

[0029] Working principle: when the rubber seat sleeve 3 is used, the rubber seat sleeve 3 and the connecting pipe 2 are connected, and the passage of the rubber seat sleeve 3 and the control sleeve 4 is connected. When the control sleeve 4 is squeezed, the effective volume of the rubber seat sleeve 3 changes. At this time, the rubber seat sleeve 3 and the connecting pipe 2 are in full contact. Under the action of the pressing block 6, the contact pressure is increased, the stability of the placement is enhanced, and the performance and effect of the rubber seat sleeve 3 on the connecting pipe 2 are improved.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A valve rubber seat for a ball valve, comprising a valve housing (1) and a rubber seat sleeve (3), characterized in that: The surface of the valve housing (1) is fixedly connected to a connecting pipe (2), the inner side of the connecting pipe (2) is abuttedly connected to a rubber seat sleeve (3), the surface of the rubber seat sleeve (3) is fixedly connected to a control sleeve (4), the inner side of the valve housing (1) is movably connected to a ball (5), the outer surface of the rubber seat sleeve (3) is fixedly connected to a pressure block (6), the surface of the pressure block (6) is fixedly connected to a reinforcing plate (7), and the surface of the rubber seat sleeve (3) is provided with a through groove (8).

2. A valve rubber seat for a ball valve according to claim 1, characterized in that: The valve housing (1) and the connecting pipe (2) are connected via a passage, and the rubber seat sleeve (3) is in a circular ring shape.

3. The valve rubber seat for a ball valve according to claim 1, characterized in that: The rubber seat sleeves (3) are distributed in two groups on both sides of the sphere (5), and the sphere (5) acts on the inside of the valve housing (1) in a spherical shape.

4. The valve rubber seat for a ball valve according to claim 1, characterized in that: The control sleeve (4) is in a circular ring shape, and the control sleeve (4) and the rubber seat sleeve (3) are both made of rubber.

5. The valve rubber seat for a ball valve according to claim 1, characterized in that: The interior of the rubber seat sleeve (3) is hollow, the interior of the control sleeve (4) is hollow, and the control sleeve (4) is connected by abutting the rubber seat sleeve (3) and the connecting pipe (2).

6. The valve rubber seat for a ball valve according to claim 1, characterized in that: The pressing block (6) is in a semi-spherical shape and is evenly distributed on the outer surface of the rubber seat sleeve (3). The pressing block (6) is abutted and connected to the inner wall of the rubber seat sleeve (3) and the connecting pipe (2).

7. The valve rubber seat for a ball valve according to claim 1, characterized in that: The reinforcing plate (7) is connected to the surface of the pressing block (6) in a strip shape, and the control sleeve (4) is connected to the rubber seat sleeve (3) through a through groove (8).

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