Gate valve convenient to seal

Abstract

According to the gate valve convenient to seal, a valve port is formed in one side of a gate valve body, a valve body end cover is arranged on the upper portion of the valve port, and a push plate is arranged on the lower portion of the valve port. A base plate is arranged on the lower portion of the push plate, and the push plate is arranged on the base plate at an inclined angle. A pushing turbine rod is arranged on the side face of the base plate, and a driving motor is arranged on the other side of the pushing turbine rod. And the sealing ring is arranged between the lower part of the valve port and the push plate. The sealing ring is in an inverted cone cylinder shape, the diameter of an upper wide opening is larger than the outer diameter of the valve opening, a circle of sealing ring framework is arranged in the lower portion, a plurality of built-in through holes are formed in the side wall of the upper portion of the framework, and the through holes are filled in the machining process so as to play a role in fixing the sealing ring framework and enhancing stability. According to the gate valve, the cylindrical sealing ring, the through hole filler and the sealing ring framework are utilized, deformation of the sealing ring is avoided, the sealing effect of the gate valve can be integrally enhanced, and the service life of the gate valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gate valve, concretely relates to a gate valve convenient to seal. BACKGROUND

[0002] In the use of valve body, the sealing effect of valve body is often considered. Generally, the valve body in the utility model mostly adopts ordinary sealing mode, or directly adopts contact type sealing. In the gate valve, due to being arranged as transverse movement, interference contact, under the combined action of fluid impact and lateral friction force in the process of closing valve, the deformation of sealing ring is often caused, thereby affecting the internal sealing effect of gate valve and the service life of product. Therefore, it is necessary to improve according to the actual situation. SUMMARY

[0003] The utility model discloses a gate valve convenient to seal, which can better improve the sealing effect of the gate valve, reduce the deformation influence and improve the sealing effect of the gate valve.

[0004] In order to realize the above object, the technical scheme of the utility model is as follows.

[0005] A gate valve convenient to seal, comprising a valve port arranged on one side of the body of the gate valve, a push plate arranged at the lower part of the valve port, a sealing ring arranged between the upper part of the push plate and the lower part of the valve port, and a sealing ring skeleton arranged in the lower end of the sealing ring.

[0006] Further, the upper part of the valve port is provided with a valve body end cover.

[0007] Further, the lower part of the push plate is provided with a base plate, the side surface of the base plate is provided with a push turbine rod, and the other side of the push turbine rod is provided with a driving motor.

[0008] Further, the diameter of the wide port above the sealing ring is greater than the outer diameter of the valve port, and the sealing ring is arranged between the lower part of the valve port and the push plate.

[0009] Further, the push plate is arranged on the base plate at an inclined angle.

[0010] Further, the upper part of the sealing ring skeleton is arranged in a ring shape, and a plurality of through holes are arranged on the side wall. The through holes are filled during the machining process to fix the sealing ring skeleton and enhance the stability.

[0011] Further, the upper part of the sealing ring is clamped into the cavity of the lower part of the valve port.

[0012] Further, the lower part of the sealing ring is in a suspended state when the valve is opened, and is attached to the push plate below when the valve is closed.

[0013] Further, the sealing ring skeleton is arranged in the lower part of the sealing ring.

[0014] The utility model product is a sealing ring anti-deformation device for a new type of gate valve of a gas meter. In order to reduce pressure loss and efficiently utilize space, the valve body is arranged in a flat shape and fixed to the inner side of the meter shell close to the inlet and outlet positions. The gate plate is at a 90-degree angle with the gas inlet and outlet pipe, so that gas directly enters when the valve is opened. When the valve is closed, the ceramic gate plate moves along the X-axis direction of the valve body, and the upper sealing ring 1 changes from no contact to partial contact and then to complete contact. In this process, the frictional force of the sealing ring 1 on the ceramic gate plate gradually increases, and, in addition, the two are in interference fit, so the sealing ring is prone to deformation in this process without reinforcement measures. The application increases an embedded sealing ring skeleton at one end (lower end) of the sealing ring push plate, which plays a role in stabilizing and preventing deformation.

[0015] The utility model has the advantages that: in the utility model device, the sealing ring is arranged, the sealing effect of the gate valve can be improved, the sealing ring skeleton is arranged at the lower end of the sealing ring, the deformation of the sealing ring can be avoided, the sealing effect of the gate valve is improved, and the service life of the product is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a device structure schematic view used in the embodiment of the utility model.

[0017] Figure 2 It is Figure 1 It is a sectional structure schematic view of C-C in the figure.

[0018] Figure 3 It is Figure 2 It is a local enlarged schematic view of D in the figure.

[0019] Figure 4 It is a sealing ring structure schematic view.

[0020] Figure 5 It is Figure 4 It is a sectional structure schematic view of A-A in the figure.

[0021] Figure 6 It is a sealing ring skeleton structure schematic view.

[0022] Figure 7 It is Figure 6 It is a structure schematic view of B-B in the figure.

[0023] Marking in the figure: 1, sealing ring; 2, sealing ring skeleton; 3, push plate; 4, base plate; 5, valve port; 6, push turbine rod; 7, drive motor; 8, valve body end cover. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be described below in combination with the drawings, so that the utility model can be better understood.

[0025] For example, Figures 1 to 7The illustrated sealing convenient flap valve, including in the body of the flap valve one side is equipped with valve port 5, the lower part of valve port 5 is equipped with push plate 3, the upper part of push plate 3 is equipped with sealing ring 1 between the lower part of valve port 5, the lower part of sealing ring 1 is embedded with sealing ring skeleton 2. The upper part of valve port 5 is equipped with valve body end cover 8. The lower part of push plate 3 is equipped with base plate 4, the side of base plate 4 is equipped with push turbine rod 6, the other side of push turbine rod 6 is equipped with driving motor 7. The wide mouth diameter above sealing ring 1 is greater than the outer diameter of valve port 5, which is convenient for nesting the outer diameter, and sealing ring 1 is arranged between the lower part of valve port 5 and push plate 3. Push plate 3 is arranged at an inclined angle on base plate 4. The upper part of sealing ring skeleton 2 is arranged in a ring shape, and a plurality of embedded through holes are arranged on the side wall. The upper part of sealing ring 1 is respectively clamped into the cavity in the lower part of valve port 5.

[0026] The utility model product is a sealing ring anti-deformation device for a new type of flap valve of a gas meter. In order to reduce pressure loss and efficiently utilize space, the valve body is arranged in a flat shape and fixed to the inner side of the meter shell close to the inlet and outlet positions. The flap is at a 90-degree angle with the gas inlet and outlet pipe, so that the gas directly enters and exits when the valve is opened. When the valve is closed, the ceramic flap moves along the X-axis direction of the valve body, and the upper sealing ring 1 changes from no contact to partial contact and then to complete contact. During this process, the sealing ring 1 gradually increases the friction force applied to the ceramic flap, and in addition, the two are in interference fit, so the sealing ring is prone to deformation during this process without reinforcement measures. The invention increases the embedded sealing ring skeleton 2 at one end of the sealing ring 1 that contacts the ceramic flap, which plays a stabilizing and anti-deformation role.

[0027] The above is the preferred embodiment of the utility model, and it should be noted that, for ordinary skilled persons in the technical field, without departing from the principles of the utility model, a number of improvements and refinements can be made, which are also considered to be within the protection scope of the utility model.

Claims

1. A sealable flap valve characterized by: The body of the gate valve is provided with a valve port (5), the lower part of the valve port (5) is provided with a push plate (3), the upper part of the push plate (3) and the lower part of the valve port (5) are provided with a sealing ring (1), and the lower part of the sealing ring (1) is internally provided with a sealing ring skeleton (2).

2. The easy-to-seal flap valve of claim 1, wherein: The upper part of the valve port (5) is provided with a valve body end cover (8).

3. The easy-to-seal flap valve of claim 1, wherein: The lower part of the push plate (3) is provided with a base plate (4), the side of the base plate (4) is provided with a push turbine rod (6), and the other side of the push turbine rod (6) is provided with a driving motor (7).

4. The easy-to-seal flap valve of claim 1, wherein: The upper part of the sealing ring (1) is provided with a wide port with a diameter larger than the outer diameter of the valve port (5), and the sealing ring (1) is arranged between the lower part of the valve port (5) and the push plate (3).

5. The easy-to-seal flap valve of claim 1, wherein: The push plate (3) is arranged on the base plate (4) at an inclined angle.

6. The easy-to-seal flap valve of claim 1, wherein: The upper part of the sealing ring skeleton (2) is arranged in a circular ring shape, the side wall is provided with a plurality of internally arranged through holes, the through holes are filled during processing, so as to fix the sealing ring skeleton and enhance the stability.

7. The easy-to-seal flap valve of claim 1, wherein: The upper part of the sealing ring (1) is respectively clamped into the cavity in the lower part of the valve port (5).

8. The easy-to-seal flap valve of claim 1, wherein: The lower part of the sealing ring (1) is in a suspended state when the valve is opened, and is attached to the push plate below when the valve is closed.

9. The easy-to-seal flap valve of claim 1, wherein: The sealing ring skeleton (2) is internally arranged in the lower part of the sealing ring (1).

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