Leak-proof valve instrument sealing element

Abstract

The utility model relates to the field of valve instruments, and discloses a leakproof valve instrument sealing element which comprises a main body, the upper portion of the main body is fixedly connected with a second fastener, the upper portion of the second fastener is fixedly connected with a fourth screw tube, and the middle side of the interior of the main body is fixedly connected with a reverse trapezoidal tube. A third nut is fixedly connected to the lower side of the interior of the main body, the third nut is in threaded connection with a third screw tube, the third screw tube is fixedly connected to the lower portion of a forward trapezoidal tube, and a first sealing ring and a second sealing ring are arranged on the upper portion of the forward trapezoidal tube. According to the multi-layer sealing structure, the sealing performance is guaranteed, safety and reliability are improved, meanwhile, through combination of the fastener and the solenoid, replacement of different connectors can be achieved, various connection requirements are met, and valve instrument assembly is made to have higher applicability and convenience.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve instrument field especially relates to a leakproof valve instrument sealing element. BACKGROUND

[0002] Valve instruments are a key technical field related to the control and monitoring of fluid flow, covering various types of valves and instrument equipment. These devices play a crucial role in various scenarios such as industry, commerce, and residential areas, used to regulate the flow, pressure, and temperature of fluids, ensuring stable, safe, and efficient system operation. With the continuous development of automation technology, the valve instrument field is also constantly innovating, using advanced sensors, controllers, and communication technology to achieve remote monitoring, intelligent regulation, and fault diagnosis, providing higher levels of automation control and management capabilities for various engineering projects.

[0003] Although the sealing ring is easy to install, it gradually loses elasticity and is prone to loosening with use, affecting the sealing of the device connection surface, and in severe cases, safety accidents may occur. During the assembly of valve instruments, multiple different types and models of joints are required, and they are integrated and inconvenient to replace. Because different models of joints can connect with different types of pipelines, it affects work efficiency and prolongs assembly time. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a leakproof valve instrument sealing element, aiming to improve the inconvenience of using integrated joints for valve instruments, and the problem of sealing ring losing elasticity and being prone to loosening, affecting the sealing.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a leakproof valve instrument sealing element, comprising a main body, a second fastener is fixedly connected to the upper part of the main body, a fourth screw pipe is fixedly connected to the upper part of the second fastener, an inverted trapezoidal pipe is fixedly connected to the middle inside of the main body, a third nut is fixedly connected to the lower inside of the main body, the third nut is screwed with a third screw pipe, the lower part of the third screw pipe is fixedly connected with a positive trapezoidal pipe, the upper part of the positive trapezoidal pipe is respectively provided with a first sealing ring and a second sealing ring, the middle part of the positive trapezoidal pipe and the upper inside of the main body are provided with a V-shaped sealing groove mechanism, the lower part of the fourth fastener is fixedly connected with a fourth nut.

[0006] Further, the V-shaped sealing groove mechanism comprises a lower V-shaped ring, the lower V-shaped ring is fixedly connected to the middle part of the positive trapezoidal pipe, the upper part of the lower V-shaped ring is fixedly connected with a V-shaped sealing element, the V-shaped sealing element is clamped with a V-shaped groove of an upper V-shaped ring, and the upper V-shaped ring is fixedly connected to the upper inside of the main body.

[0007] Further, the upper part of the forward trapezoidal tube is clamped with the lower part of the reverse trapezoidal tube.

[0008] Further, the fourth screw tube is threadedly connected with the fourth nut.

[0009] Further, the upper part of the fourth nut is fixedly connected with a first fastener, and the upper part of the first fastener is fixedly connected with a first nut.

[0010] Further, the second nut is threadedly connected with the second screw tube.

[0011] Further, the lower part of the second screw tube is fixedly connected with a third fastener, and the lower part of the third fastener is fixedly connected with a first screw tube.

[0012] Further, the first sealing ring and the second sealing ring are in close contact with the inner lower side of the main body, and the inner bottom side of the first nut is provided with a sealing gasket.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] In the utility model, the first layer sealing is formed by the clamping of the forward trapezoidal tube 12 and the reverse trapezoidal tube 13, and the second layer sealing is formed by the close contact of the first sealing ring 6 and the second sealing ring 11 with the inner lower side of the main body 1.

[0015] In the utility model, the second fastener 4 at the upper part of the main body 1 is combined with the fourth screw tube 20, and the fourth fastener 10 is combined with the second nut 9, so that different types of connectors can be replaced, a more flexible assembly mode is provided, and different types of connectors can be replaced according to needs, thereby meeting various connection requirements. DRAWINGS

[0016] Figure 1 The utility model provides a kind of overall structure diagram of the leakage-proof valve instrument sealing element;

[0017] Figure 2 The utility model provides a kind of overall split diagram of the leakage-proof valve instrument sealing element;

[0018] Figure 3 The utility model provides a kind of left sectional view of the leakage-proof valve instrument sealing element;

[0019] Figure 4 The utility model provides a kind of left sectional view of the leakage-proof valve instrument sealing element; Figure 1 The utility model provides a kind of left sectional view of the leakage-proof valve instrument sealing element;

[0020] LEGEND:

[0021] 1, the main body; 2, the first nut; 3, the first fastener; 4, the second fastener; 5, the first pipe; 6, the first sealing ring; 7, the third fastener; 8, the second pipe; 9, the second nut; 10, the fourth fastener; 11, the second sealing ring; 12, the forward trapezoidal pipe; 13, the reverse trapezoidal pipe; 14, the third pipe; 15, the V-shaped sealing groove mechanism; 16, the upper V ring; 17, the lower V ring; 18, the V-shaped sealing piece; 19, the sealing gasket; 20, the fourth pipe; 21, the fourth nut; 22, the third nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Referring to Figures 1-4 An embodiment provided by the utility model: a leakproof valve instrument sealing piece, including main body 1, the upper portion of main body 1 is fixedly connected with second fastener 4, the upper portion of second fastener 4 is fixedly connected with fourth pipe 20, the inside middle side of main body 1 is fixedly connected with reverse trapezoidal pipe 13, the inside lower side of main body 1 is fixedly connected with third nut 22, third nut 22 is screwed with third pipe 14, third pipe 14 is fixedly connected with the lower portion of forward trapezoidal pipe 12, the upper portion of forward trapezoidal pipe 12 is provided with first sealing ring 6 and second sealing ring 11 respectively, the middle portion of forward trapezoidal pipe 12 and the inside upper side of main body 1 are provided with V-shaped sealing groove mechanism 15, the lower portion of forward trapezoidal pipe 12 is fixedly connected with fourth fastener 10, the lower portion of fourth fastener 10 is fixedly connected with second nut 9.

[0024] The upper portion of main body 1 is fixedly connected with second fastener 4 and fourth pipe 20, which can be used to replace different models of joints, the inside middle side of main body 1 is fixedly connected with reverse trapezoidal pipe 13 and forward trapezoidal pipe 12, which is clamped to form a layer of sealing, the inside lower side of main body 1 is fixedly connected with third nut 22, which is used to be connected with the lower portion of forward trapezoidal pipe 12, the upper portion of forward trapezoidal pipe 12 is provided with first sealing ring 6 and second sealing ring 11 respectively, forming a second layer of sealing, the middle portion of forward trapezoidal pipe 12 and the inside upper side of main body 1 are provided with V-shaped sealing groove mechanism 15, forming a third layer of sealing.

[0025] The V-shaped sealing groove mechanism 15 comprises a lower V-shaped ring 17 fixedly connected to the middle part of the forward trapezoidal pipe 12, the upper part of the lower V-shaped ring 17 is fixedly connected with a V-shaped sealing element 18, the V-shaped sealing element 18 is clamped with the V-shaped groove of the upper V-shaped ring 16, the upper V-shaped ring 16 is fixedly connected to the inner upper side of the main body 1, the upper part of the forward trapezoidal pipe 12 is clamped with the lower part of the reverse trapezoidal pipe 13, the fourth screw pipe 20 is threadedly connected with the fourth nut 21, the upper part of the fourth nut 21 is fixedly connected with the first fastener 3, the upper part of the first fastener 3 is fixedly connected with the first nut 2, the second nut 9 is threadedly connected with the second screw pipe 8, the lower part of the second screw pipe 8 is fixedly connected with the third fastener 7, the lower part of the third fastener 7 is fixedly connected with the first screw pipe 5, the first sealing ring 6 and the second sealing ring 11 are in close contact with the inner lower side of the main body 1, and the inner bottom side of the first nut 2 is provided with a sealing gasket 19.

[0026] The V-shaped sealing groove mechanism 15 comprises the lower V-shaped ring 17, the V-shaped sealing element 18 and the upper V-shaped ring 16, and the three are matched to form the third layer of sealing, the upper part of the forward trapezoidal pipe 12 is clamped with the lower part of the reverse trapezoidal pipe 13 to form the first layer of sealing, and the first sealing ring 6 and the second sealing ring 11 are in close contact with the inner lower side of the main body 1 to form the second layer of sealing, and the inner bottom side of the first nut 2 is provided with the sealing gasket 19 for sealing of the joint.

[0027] Working principle: the upper part of the main body 1 is fixedly connected with the second fastener 4 and the fourth screw pipe 20, so that different types of joints can be replaced, the inner middle side of the main body 1 is fixedly connected with the reverse trapezoidal pipe 13 and the forward trapezoidal pipe 12 to form the first layer of sealing, the inner lower side of the main body 1 is fixedly connected with the third nut 22 for being connected with the lower part of the forward trapezoidal pipe 12, the upper part of the forward trapezoidal pipe 12 is respectively provided with the first sealing ring 6 and the second sealing ring 11 to form the second layer of sealing, the middle part of the forward trapezoidal pipe 12 and the inner upper side of the main body 1 are provided with the V-shaped sealing groove mechanism 15 to form the third layer of sealing, and the inner bottom side of the first nut 2 is provided with the sealing gasket 19 for sealing of the joint.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. Leak-proof valve instrument seal comprising a body (1), characterized in that: The upper part of the main body (1) is fixedly connected with a second fastener (4), the upper part of the second fastener (4) is fixedly connected with a fourth screw pipe (20), the inside middle part of the main body (1) is fixedly connected with an inverse trapezoidal pipe (13), the inside lower part of the main body (1) is fixedly connected with a third nut (22), the third nut (22) is threadedly connected with a third screw pipe (14), the lower part of the third screw pipe (14) is fixedly connected with a positive trapezoidal pipe (12), the upper part of the positive trapezoidal pipe (12) is respectively provided with a first sealing ring (6) and a second sealing ring (11), the middle part of the positive trapezoidal pipe (12) and the inside upper part of the main body (1) are provided with a V-shaped sealing groove mechanism (15), the lower part of the positive trapezoidal pipe (12) is fixedly connected with a fourth fastener (10), and the lower part of the fourth fastener (10) is fixedly connected with a second nut (9).

2. A leak resistant valve instrument seal according to claim 1, wherein: The V-shaped sealing groove mechanism (15) comprises a lower V-shaped ring (17), the lower V-shaped ring (17) is fixedly connected to the middle part of the positive trapezoidal pipe (12), the upper part of the lower V-shaped ring (17) is fixedly connected with a V-shaped sealing element (18), the V-shaped sealing element (18) is clamped with a V-shaped groove of an upper V-shaped ring (16), and the upper V-shaped ring (16) is fixedly connected to the inside upper part of the main body (1).

3. A leak resistant valve instrument seal according to claim 1, wherein: The upper part of the positive trapezoidal pipe (12) is clamped with the lower part of the inverse trapezoidal pipe (13).

4. A leak-tight valve instrument seal according to claim 1, wherein: The fourth screw pipe (20) is threadedly connected with a fourth nut (21).

5. A leak-tight valve and instrument seal according to claim 4, wherein: The upper part of the fourth nut (21) is fixedly connected with a first fastener (3), and the upper part of the first fastener (3) is fixedly connected with a first nut (2).

6. A leak-tight valve instrument seal according to claim 1, wherein: The second nut (9) is threadedly connected with a second screw pipe (8).

7. A leak-tight valve instrument seal according to claim 6, wherein: The lower part of the second screw pipe (8) is fixedly connected with a third fastener (7), and the lower part of the third fastener (7) is fixedly connected with a first screw pipe (5).

8. A leak-tight valve instrument seal according to claim 5, wherein: The first sealing ring (6) and the second sealing ring (11) are in close contact with the inside lower part of the main body (1), and the inside bottom side of the first nut (2) is provided with a sealing gasket (19).

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