Flap type sealing assembly

Abstract

The utility model discloses a clack type sealing assembly which comprises a valve rod and a sealing framework. The first end of the valve rod is connected with the power output end of the power mechanism, and an annular groove is formed in the side wall, close to the second end, of the valve rod. The sealing framework comprises a connecting ring, a plurality of same deformation pieces are arranged on the inner wall of the connecting ring in the radial direction in an inward protruding mode, and a gap is formed between every two adjacent deformation pieces. When the valve rod is matched with the sealing framework, the second end of the valve rod is inserted into and passes through one ends of the inner sides of the multiple deformation pieces, and the ends of the inner sides of the multiple deformation pieces are clamped into the annular groove after rebounding. According to the utility model, when the sealing part and the transmission part of the valve are connected, only the valve rod needs to be inserted into the sealing framework, and one end of the deformation piece is clamped into the annular groove in the valve rod, so that the purposes of simple connection mode and connection structure are achieved, and the assembly efficiency is higher; the petal type sealing framework makes full use of elastic deformation of the deformation piece, so that stress is uniform after assembly, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meters, in particular to a flap sealing component. Background Technique

[0002] With the improvement of the social and economic level and the change of the lifestyle, clean energy such as natural gas has entered thousands of households. As a gas meter for charging natural gas and controlling the on-off of natural gas, it has also entered thousands of households. The on-off control of natural gas is mainly completed by an electronically controlled built-in valve inside the gas meter. The electronically controlled built-in valve of the gas meter generally includes a transmission part, a sealing part, etc. In the existing connection between the valve sealing part and the transmission part, there are problems such as complex structure, low assembly efficiency, uneven force, easy structural damage, and poor reliability.

[0003] Therefore, it is necessary to develop a flap sealing component to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to design a flap sealing component to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A flap sealing component, comprising:

[0007] A valve stem; the first end of the valve stem is connected to the power output end of the power mechanism, and an annular groove is provided on the side wall of the valve stem near the second end;

[0008] A sealing skeleton; the sealing skeleton includes a connecting ring, and a plurality of identical deformable members protrude radially inwards on the inner wall of the connecting ring, and a gap is provided between adjacent two deformable members; when the valve stem and the sealing skeleton cooperate, the second end of the valve stem is inserted and passes between the inner ends of a plurality of deformable members, and the inner ends of the plurality of deformable members after rebounding are clamped into the annular groove.

[0009] The beneficial effect of the utility model lies in:

[0010] When connecting the valve sealing part and the transmission part, it only needs to insert the valve stem into the sealing skeleton and make one end of the deformable member clamp into the annular groove on the valve stem, achieving the purpose of simple connection method and connection structure, and relatively high assembly efficiency; the flap sealing skeleton makes full use of the elastic deformation of the deformable member, so that the force is uniform and the stability is high after assembly. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the sealing skeleton in this application;

[0012] Figure 2 It is a schematic structural diagram of the unassembled structure in this application;

[0013] Figure 3 Schematic diagram of the assembled structure of this application;

[0014] Figure 4 Schematic diagram of the sealing skeleton without the sealing ring connected;

[0015] Figure 5 Schematic diagram of the sealing skeleton with the sealing ring connected;

[0016] In the figure: 1. Valve stem; 2. Annular groove; 3. Breakthrough head; 4. Sealing skeleton; 5. Connecting ring; 6. Deformable part; 7. Gap; 8. Slot hole; 9. Sealing ring. Specific embodiments

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0024] As Figures 1-3 shown, a flap seal assembly includes:

[0025] A valve stem 1; the first end of the valve stem 1 is connected to the power output end of the power mechanism, and an annular groove 2 is provided on the side wall of the valve stem 1 near the second end;

[0026] A sealing skeleton 4; the sealing skeleton 4 includes a connecting ring 5, and six identical deformable members 6 protrude radially inward on the inner wall of the connecting ring 5, and a gap 7 is provided between adjacent two deformable members 6; when the valve stem 1 and the sealing skeleton 4 cooperate, the breakthrough head 3 on the second end of the valve stem 1 is inserted through and between the slot holes 8 formed by the inner ends of the six deformable members 6, and the inner ends of the multiple deformable members 6 after rebounding are clamped into the annular groove 2. The diameter of the slot hole 8 is smaller than the diameter of the second end of the valve stem 1. The six deformable members 6 are evenly distributed around the axis of the connecting ring 5. The diameter of the breakthrough head 3 is larger than the bottom diameter of the annular groove 2 and smaller than the diameter of the main rod body of the valve stem 1.

[0027] In some embodiments, the deformable member 6 is preferably an elastic member or a plastic member. The deformable member 6 is further preferably made of polyoxymethylene. In some embodiments, the sealing skeleton 4 is made of POM (polyoxymethylene) material.

[0028] As Figure 1 and 3 shown, the cross-section of the deformable member 6 is triangular. The inner end of the deformable member 6 is warped in the direction of insertion of the valve stem 1.

[0029] As Figure 4 and 5 shown, in actual use, a sealing ring 9 is also provided, and an annular groove is provided on the inner wall of the sealing ring 9, and the connecting ring 5 is inserted into the annular groove for installation.

[0030] During the operation of the electric control built-in valve of the gas meter, the motor transmits the motion to the valve stem 1 through a speed reduction mechanism. The valve stem 1 generates a linear motion. The valve stem 1 is connected to the sealing skeleton 4, transmitting the motion to the sealing part. The sealing skeleton 4 adopts a petal design. Since the deformable part 6 itself has a certain elasticity or plasticity, with the petal design combining multiple deformable parts 6, it has sufficient flexibility during the assembly process with the valve stem 1, enabling the breakthrough head 3 of the valve stem 1 to pass through better. Since the diameter of the rod body of the valve stem 1 is larger than the breakthrough head 3 of the valve stem 1, after the assembly is in place, the sealing skeleton 4 cannot move downward anymore. After the assembly is in place, if the sealing skeleton 4 moves upward, a structure similar to a buckle prevents it from moving upward. Thus, the valve stem 1 and the sealing skeleton 4 are limited within a certain range.

[0031] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A flap seal assembly, characterized in that: include: A valve stem; a first end of the valve stem is connected to a power output end of the power mechanism, and an annular groove is provided on a side wall of the valve stem near the second end; Sealing frame; The sealing skeleton includes a connecting ring, and a plurality of identical deformation parts are provided on the inner wall of the connecting ring protruding radially inward, and a gap is provided between two adjacent deformation parts; when the valve stem and the sealing skeleton are matched, the second end of the valve stem is inserted into and passes between the inner ends of the plurality of deformation parts, and the inner ends of the plurality of deformation parts are stuck in the annular groove after rebounding.

2. A flap seal assembly according to claim 1, characterized in that: The inner ends of the plurality of deformable members are surrounded by a slot hole, and the diameter of the slot hole is smaller than the diameter of the second end of the valve stem.

3. A flap seal assembly according to claim 1, characterized in that: The plurality of deformation members are evenly distributed around the axis of the connecting ring.

4. A flap seal assembly according to claim 1, characterized in that: A breakthrough head is formed at the second end of the valve stem, and the diameter of the breakthrough head is larger than the bottom diameter of the annular groove and smaller than the diameter of the main stem body of the valve stem.

5. The valve-type sealing assembly according to claim 1, characterized in that: The deformable member is an elastic member or a plastic member.

6. A valve-type sealing assembly according to claim 1, characterized in that: The cross section of the deformation member is formed into a triangle.

7. A valve-type sealing assembly according to claim 1, characterized in that: One inner end of the deformation piece is warped in the direction of valve stem insertion.

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