Wave spring for control valve

Abstract

The utility model provides a wave spring for a control valve, which comprises a plurality of wave rings which are connected in a laminated manner, the tops and the bottoms of the plurality of wave rings are provided with pressing rings, positioning rings are embedded on the pressing rings, a plurality of guide rods are arranged among the positioning rings along the axis in an annular array manner, and the guide rods are connected with the pressing rings. Through holes are formed in the pressing ring and the wave-shaped ring in an annular array shape along the axis, and the multiple guide rods are inserted into the multiple through holes in a penetrating mode respectively. According to the utility model, the positioning ring and the plurality of guide rods are arranged, so that the wave spring can be effectively positioned and guided, the problem that the central axis of the wave spring deviates due to extrusion during use is avoided, the normal work of the wave spring is ensured, and the service life of the wave spring is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wave springs, in particular to a wave spring for a control valve. Background Art

[0002] The purpose of setting a wave spring inside the control valve is to provide a certain elasticity and preload, which is critical to maintaining a tight fit of the valve assembly and ensuring sealing performance. Compared with ordinary helical springs, wave springs can provide greater elasticity in the same space, which makes them particularly useful in applications that require a smaller volume spring. In addition, wave springs can absorb and buffer vibrations, which is very important for protecting the internal structure of the valve and extending the service life of the control valve.

[0003] However, when the wave spring is squeezed, if there is uneven force, it may deviate, which will cause the wave spring to not move along the central axis when it contracts, resulting in an eccentric load on the spring, that is, the center of gravity of the spring shifts when it is stressed, which not only affects the normal operation of the spring, but also may accelerate the damage of the spring and reduce its service life. The deviation of the central axis may also cause wear or damage to the parts that the spring contacts, especially when these parts are sensitive to force. In addition, if used in precision equipment or mechanisms, the deviation of the central axis of the wave spring may affect the accuracy and performance of the equipment, causing abnormal function of the equipment or reduced efficiency. Utility Model Content

[0004] The utility model provides a wave spring for a control valve to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wave spring for a control valve comprises a plurality of wave rings connected in a stacked manner, wherein pressure rings are provided on the tops and bottoms of the plurality of wave rings, positioning rings are embedded on the pressure rings, a plurality of guide rods are provided in an annular array along the axis between the positioning rings, through holes are provided in an annular array along the axis on the pressure rings and the wave rings, and the plurality of guide rods are respectively inserted into the plurality of through holes.

[0007] Preferably, two ends of the plurality of guide rods are fixedly connected to the two positioning rings respectively.

[0008] Preferably, the surfaces of the corrugated ring and the pressure ring are both electroplated with a zinc layer, and the zinc layer is coated with a nano layer on the outside.

[0009] Beneficial Effects

[0010] The above one or more technical solutions in a wave spring for a control valve provided by an embodiment of the utility model have at least one of the following technical effects:

[0011] With the above technical solution, the utility model is provided with a positioning ring and a number of guide rods, which can effectively position and guide the wave spring, avoiding the problem that the central axis of the wave spring shifts when it is squeezed during use, ensuring the normal operation of the wave spring and the service life of the wave spring and its components. In addition, by electroplating a galvanized layer on the surfaces of the wave ring and the pressure ring and coating a nano-layer outside the galvanized layer, the corrosion resistance and waterproof ability of the wave spring are effectively improved, thereby increasing the service life of the wave spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a schematic diagram of the structure of the wave ring and the pressure ring of the utility model;

[0014] Figure 3 is a schematic diagram of the structure of the positioning ring and the guide rod of the utility model;

[0015] The corresponding relationship between the labels of each attached drawing in the figure and the names of the components is as follows:

[0016] 1. Wave ring; 2. Pressure ring; 3. Positioning ring; 4. Guide rod; 5. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative work shall fall within the scope of protection of the utility model.

[0018] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the 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 of the utility model.

[0019] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arrangement", "installation", "connection", and "linkage" should be understood in a broad sense. For example, it 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.

[0020] As Figures 1-3 shown, it is a schematic structural diagram of a corrugated spring for a control valve according to a preferred embodiment of the present utility model;

[0021] In this embodiment, it includes several corrugated rings 1 connected in a stacked manner. Pressure rings 2 are provided at the top and bottom of several said corrugated rings 1. Positioning rings 3 are embedded on each of the pressure rings 2. The pressure rings 2 and the positioning rings 3 are in a relatively stationary state. Several guide rods 4 are arranged in an annular array along the axis between the positioning rings 3. Through holes 5 are arranged in an annular array along the axis on both the pressure rings 2 and the corrugated rings 1. Several said guide rods 4 are respectively inserted into several said through holes 5. Through the positioning rings 3 and several guide rods 4, a positioning and guiding effect is achieved for the pressure rings 2 and the corrugated rings 1, thereby effectively playing a positioning and guiding role for the corrugated spring, avoiding the problem that the central axis of the corrugated spring deviates when being squeezed during use, ensuring the normal operation of the corrugated spring, and ensuring the service life of the corrugated spring and its components.

[0022] In this embodiment, several said guide rods 4 are all of a three-stage telescopic structure to realize the telescopic connection of the two positioning rings 3.

[0023] In this embodiment, both ends of several said guide rods 4 are fixedly connected to the two positioning rings 3 by welding to realize the connection of the two positioning rings 3.

[0024] In this embodiment, galvanized layers are electroplated on the surfaces of the corrugated rings 1 and the pressure rings 2, and nano-layers are coated on the outside of the galvanized layers. Through the galvanized layers and the nano-layers, the corrosion resistance and waterproof ability of the corrugated spring are effectively improved, thereby increasing the service life of the corrugated spring.

[0025] For a corrugated spring for a control valve of the present utility model, its installation method, connection method, or arrangement method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0026] The technologies not described in detail in the present utility model are all well-known technologies. Those skilled in the art can conveniently implement the present utility model on the basis of understanding this specification, and the content shown in the drawings is a part of this specification.

[0027] The above content further elaborates on the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. A corrugated spring for a control valve, comprising a plurality of corrugated rings (1) connected in a stacked manner, and pressing rings (2) are provided at the top and bottom of the plurality of corrugated rings (1), and it is characterized in that: Positioning rings (3) are embedded in the pressure rings (2). A plurality of guide rods (4) are arranged in an annular array along the axis between the positioning rings (3). Through holes (5) are arranged in an annular array along the axis on both the pressure rings (2) and the corrugated rings (1). The plurality of guide rods (4) are respectively inserted into the plurality of through holes (5).

2. The wave spring for a control valve according to claim 1, characterized in that: The plurality of guide rods (4) are all of a three-section telescopic structure.

3. A corrugated spring for a control valve according to claim 1, characterized in that: Both ends of the plurality of guide rods (4) are fixedly connected to the two positioning rings (3) respectively.

4. A corrugated spring for a control valve according to claim 1, characterized in that: Galvanized layers are electroplated on the surfaces of the corrugated rings (1) and the pressure rings (2), and nano-layers are coated on the outer sides of the galvanized layers.

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