Sealing element for valve

Abstract

The utility model discloses a sealing element for a valve, and particularly relates to the field of sealing elements, the sealing element comprises a sealing extension ring, the upper end part of the sealing extension ring is detachably and fixedly connected with a first sealing ring, and the lower end part of the sealing extension ring is detachably and fixedly connected with a second sealing ring; the middle position of the outer end face of the sealing extension ring is fixedly sleeved with a sealing air bag, and the sealing air bag fixedly communicates with the sealing extension ring. According to the utility model, the sealing length can be adjusted through the sealing extension ring, so that the applicability of the sealing device is improved, and the sealing performance of the sealing extension ring can be improved through the inflated sealing air bag.

Description

Technical Field

[0001] The utility model relates to the field of sealing components, in particular to a sealing component for valves. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressure oil of a pressure regulating valve and can be used to control the on and off of oil, gas, and water pipeline systems.

[0003] The commonly used seal in hydraulic valves is the sealing ring, which is installed in the groove of the pipe joint. It enters the groove by extrusion and closely contacts the machine or pipe to play a sealing role. The existing sealing ring has the following problems:

[0004] The sealing length is difficult to adjust, and thus is not suitable for sealing grooves of different lengths, resulting in poor applicability.

[0005] Therefore, we make improvements to this and propose a valve seal. Utility Model Content

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

[0007] The utility model discloses a valve seal, comprising a sealing extension ring, a first mounting groove and a second mounting groove, wherein the upper end of the sealing extension ring is detachably fixedly connected to the first sealing ring, and the lower end of the sealing extension ring is detachably fixedly connected to the second sealing ring;

[0008] A sealing air bag is fixedly sleeved on the middle part of the outer end surface of the sealing extension ring, and the sealing air bag is fixedly communicated with the sealing extension ring.

[0009] As a preferred technical solution of the utility model, the first sealing ring and the second sealing ring are both provided with an annular connecting slot at one end close to each other;

[0010] The upper and lower ends of the sealing extension ring respectively penetrate the two annular connecting slots and extend to the inside of the first sealing ring and the second sealing ring respectively, and the upper and lower ends of the sealing extension ring respectively slide and fit with the inside of the first sealing ring and the second sealing ring along the vertical direction.

[0011] As a preferred technical solution of the utility model, the first sealing ring is detachably fixedly connected to the sealing extension ring through a first top screw;

[0012] There are four first top screws, and the four first top screws are arranged in an annular array at the bottom of the first sealing ring.

[0013] As a preferred technical solution of the utility model, the second sealing ring is detachably fixedly connected to the sealing extension ring through a second top screw;

[0014] There are four second top screws, and the four second top screws are arranged in a ring array on the top of the second sealing ring.

[0015] As a preferred technical solution of the utility model, there are four first installation grooves, which are installed in a circular array on the outer end surface of the bottom of the first sealing ring, and four first top screws are respectively arranged on the inner sides of the four first installation grooves at one end away from the sealing extension ring.

[0016] As a preferred technical solution of the utility model, there are four second installation grooves, which are installed in a circular array on the top outer end surface of the second sealing ring, and the four second top screws are respectively arranged on the inner sides of the four second installation grooves at one end away from the sealing extension ring.

[0017] As an optimal technical solution of the utility model, a third installation groove is opened on the inner wall of the sealing extension ring, and an inflation tube is installed inside the third installation groove. One end of the inflation tube is fixedly connected to the sealing extension ring, and a switch valve is fixedly installed on the inflation tube.

[0018] The beneficial effects of the utility model are as follows: the total length of the valve seal can be adjusted by adjusting the length of the sealing extension ring located inside the first sealing ring and the second sealing ring. After the adjustment is completed, the sealing extension ring and the first sealing ring can be fixed by tightening the first top screw, and the sealing extension ring and the second sealing ring can be fixed by tightening the second top screw. After the adjustment is completed, the sealing performance of the sealing extension ring can be improved by the inflated sealing airbag.

[0019] The utility model can adjust the sealing length through the sealing extension ring, thereby improving the applicability of the utility model, and can improve the sealing performance of the sealing extension ring through the inflated sealing airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of a valve seal of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a sealing extension ring in a valve sealing member of the utility model;

[0023] Figure 3 This is an exploded view of a valve seal of the utility model;

[0024] Figure 4 yes Figure 2 A magnified view of the structure in the middle.

[0025] In the figure: 1, first sealing ring; 2, first top screw; 4, second sealing ring; 5, second top screw; 6, first mounting groove; 7, second mounting groove; 8, annular connecting slot;

[0026] 301, sealing extension ring; 302, sealing airbag; 303, inflation tube; 304, switch valve; 305, third installation groove. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example: Figure 1-4 As shown, the utility model is a valve seal, comprising a sealing extension ring 301, a first mounting groove 6 and a second mounting groove 7, wherein the upper end of the sealing extension ring 301 is detachably fixedly connected to the first sealing ring 1, and the lower end of the sealing extension ring 301 is detachably fixedly connected to the second sealing ring 4;

[0029] A sealing airbag 302 is fixedly mounted on the middle portion of the outer end surface of the sealing extension ring 301 , and the sealing airbag 302 is fixedly connected to the sealing extension ring 301 .

[0030] In this embodiment, Figure 1 and Figure 3 As shown, the first sealing ring 1 and the second sealing ring 4 are both provided with an annular connecting slot 8 at one end close to each other; the upper and lower ends of the sealing extension ring 301 respectively penetrate the two annular connecting slots 8 and extend to the inside of the first sealing ring 1 and the second sealing ring 4 respectively, and the upper and lower ends of the sealing extension ring 301 respectively slide and fit with the inside of the first sealing ring 1 and the inside of the second sealing ring 4 in the vertical direction.

[0031] By adjusting the length of the sealing extension ring 301 inside the first sealing ring 1 and the second sealing ring 4, the overall length of the utility model can be adjusted.

[0032] The first sealing ring 1 is detachably fixedly connected to the sealing extension ring 301 through the first top screw 2; there are four first top screws 2, and the four first top screws 2 are arranged in a ring array at the bottom of the first sealing ring 1; the second sealing ring 4 is detachably fixedly connected to the sealing extension ring 301 through the second top screw 5; there are four second top screws 5, and the four second top screws 5 are arranged in a ring array at the top of the second sealing ring 4.

[0033] After the adjustment is completed, the sealing extension ring 301 and the first sealing ring 1 can be fixed by tightening the first top screw 2 , and the sealing extension ring 301 and the second sealing ring 4 can be fixed by tightening the second top screw 5 .

[0034] There are four first installation grooves 6 , which are installed in a ring array on the outer end surface of the bottom of the first sealing ring 1 , and the ends of the four first top screws 2 away from the sealing extension ring 301 are respectively arranged on the inner sides of the four first installation grooves 6 .

[0035] By providing the first installation groove 6 , the end of the first top screw 2 away from the sealing extension ring 301 can be received inside the first sealing ring 1 , thereby preventing the first top screw 2 from affecting the installation of the first sealing ring 1 .

[0036] There are four second installation grooves 7 , which are installed in a ring array on the top outer end surface of the second sealing ring 4 , and the ends of the four second top screws 5 away from the sealing extension ring 301 are respectively arranged on the inner sides of the four second installation grooves 7 .

[0037] By providing the second installation groove 7, the end of the second top screw 5 away from the sealing extension ring 301 can be stored inside the second sealing ring 4 to prevent the second top screw 5 from affecting the installation of the second sealing ring 4.

[0038] like Figure 2 and Figure 4 As shown, a third installation groove 305 is opened on the inner wall of the sealing extension ring 301, and an inflation tube 303 is installed inside the third installation groove 305, and one end of the inflation tube 303 is fixedly connected to the sealing extension ring 301, and a switch valve 304 is fixedly installed on the inflation tube 303.

[0039] The switch valve 304 can be opened, and the sealing airbag 302 can be inflated through the inflation tube 303. After the inflation is completed, the switch valve 304 can be closed. The sealing airbag 302 can improve the sealing effect of the sealing extension ring 301.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A valve seal, characterized in that: It comprises a sealing extension ring (301), a first mounting groove (6) and a second mounting groove (7), wherein the upper end of the sealing extension ring (301) is detachably fixedly connected to the first sealing ring (1), and the lower end of the sealing extension ring (301) is detachably fixedly connected to the second sealing ring (4); A sealing airbag (302) is fixedly mounted on the middle portion of the outer end surface of the sealing extension ring (301), and the sealing airbag (302) is fixedly connected to the sealing extension ring (301).

2. A valve seal according to claim 1, characterized in that: The first sealing ring (1) and the second sealing ring (4) are both provided with an annular connecting slot (8) at one end close to each other; The upper and lower ends of the sealing extension ring (301) respectively penetrate the two annular connecting slots (8) and extend to the inside of the first sealing ring (1) and the second sealing ring (4) respectively, and the upper and lower ends of the sealing extension ring (301) respectively slide and fit with the inside of the first sealing ring (1) and the inside of the second sealing ring (4) in the vertical direction.

3. A valve seal according to claim 2, characterized in that: The first sealing ring (1) is detachably fixedly connected to the sealing extension ring (301) via a first top screw (2); Four first top screws (2) are provided, and the four first top screws (2) are arranged in a ring array at the bottom of the first sealing ring (1).

4. A valve seal according to claim 3, characterized in that: The second sealing ring (4) is detachably fixedly connected to the sealing extension ring (301) via a second top screw (5); Four second top screws (5) are provided, and the four second top screws (5) are arranged in a ring array on the top of the second sealing ring (4).

5. A valve seal according to claim 4, characterized in that: There are four first installation grooves (6), which are installed in a ring array on the outer end surface of the bottom of the first sealing ring (1), and the four first top screws (2) are respectively arranged at one end away from the sealing extension ring (301) on the inner side of the four first installation grooves (6).

6. A valve seal according to claim 5, characterized in that: There are four second mounting grooves (7), which are mounted in a ring array on the top outer end surface of the second sealing ring (4), and the four second top screws (5) are respectively arranged on the inner sides of the four second mounting grooves (7) at one end away from the sealing extension ring (301).

7. A valve seal according to claim 6, characterized in that: The inner wall of the sealing extension ring (301) is provided with a third installation groove (305), and an inflation tube (303) is installed inside the third installation groove (305), and one end of the inflation tube (303) is fixedly connected to the sealing extension ring (301), and a switch valve (304) is fixedly installed on the inflation tube (303).

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