Wear-resistant one-way valve core

Abstract

The utility model discloses a wear-resistant one-way valve core which comprises a valve core guide pipe and a valve core wrapping plate which are welded with each other and further comprises a valve core base plate assembly, a sealing gasket is arranged on the side, away from the valve core guide pipe, of the valve core wrapping plate, and penetrating notches are formed in the middle of the valve core wrapping plate and the middle of the sealing gasket. The valve element base plate assembly comprises a horizontal part and a threaded valve element rod penetrating through the penetrating notch, the horizontal part abuts against the side face, away from the valve element wrapping ring plate, of the sealing gasket, and the threaded valve element rod is in threaded connection with a locking nut. Due to the fact that the locking nut is installed in the valve element guide pipe, the locking nut is prevented from being damaged by material impact, and therefore it is guaranteed that the valve element assembly and the sealing gasket cannot fall off. Meanwhile, the outer side face of the horizontal part of the valve element base plate assembly is subjected to hardening treatment, the hardness can reach 70 HRC, the valve element base plate assembly cannot be damaged when being impacted by materials such as gravel, coal and iron ore, and the service life of the valve element is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a wear-resistant one-way valve core. Background Art

[0002] like Figure 1 and Figure 2 As shown, the existing one-way valve core structure is composed of a valve core guide tube, a valve core ring plate, a sealing gasket, a sealing gasket pressure plate, a threaded valve core rod, a nut, a locking pin, and a locking nut. This structure can be used for up to one year in the conventional sewage sludge industry without being damaged. However, in high-wear environments such as sand washing, coal, and iron ore, materials enter the one-way valve from the bottom of the one-way valve, and will first impact the bottom of the old valve core. The locking nut will fall off after being damaged, further causing the sealing gasket pressure plate and the sealing gasket to fall off. The valve core cannot work properly. The fallen sealing gasket plate will enter the working cylinder from the bottom of the one-way valve, hinder the operation of the piston during the operation of the piston, damage the inner wall of the working cylinder, and cause the equipment to malfunction. Therefore, there is room for improvement as a whole. Utility Model Content

[0003] The purpose of the utility model is to provide a one-way valve core structure with good wear resistance in a high wear environment in view of the deficiencies existing in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides a wear-resistant one-way valve core, which adopts the following technical solutions:

[0005] A wear-resistant one-way valve core comprises a welded valve core guide tube and a valve core ring plate, and also comprises a valve core gasket assembly, a sealing gasket is provided on the side of the valve core ring plate away from the valve core guide tube, a through notch is provided in the middle of the valve core ring plate and the sealing gasket, the valve core gasket assembly comprises a horizontal portion and a threaded valve core rod passing through the through notch, the horizontal portion abuts against a side of the sealing gasket away from the valve core ring plate, and a locking nut is screwed onto the threaded valve core rod.

[0006] A further improvement of the wear-resistant one-way valve core of the utility model is that the horizontal part and the threaded valve core rod are welded.

[0007] A further improvement of the wear-resistant one-way valve core of the utility model is that a groove is provided at the center of the horizontal part, one end of the threaded valve core rod extends into the groove and is welded to the horizontal part.

[0008] A further improvement of the wear-resistant one-way valve core of the utility model is that the surface of the horizontal part is hardened.

[0009] A further improvement of the wear-resistant one-way valve core of the utility model is that a spring gasket and a flat gasket are provided between the locking nut and the valve core wrapping ring plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] Because the locking nut of the utility model is installed in the valve core guide tube, damage to the locking nut caused by material impact is avoided, thereby ensuring that the valve core assembly and the sealing gasket will not fall off; at the same time, the outer side surface of the horizontal part of the valve core pad assembly is hardened, and the hardness can reach 70HRC, so it will not be damaged when impacted by materials such as sand, coal, and iron ore, thereby ensuring the service life of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , Figure 2 It is a structural schematic diagram of an existing one-way valve core structure;

[0013] Figure 3 It is a schematic diagram of the structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the use structure of the utility model.

[0015] In the figure: 1 valve core guide tube, 2 valve core ring plate, 3 sealing gasket, 4 horizontal part, 5 threaded valve core rod, 6 locking nut, 7 spring gasket, 8 flat gasket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 3 to Figure 4 As shown, a wear-resistant one-way valve core includes a valve core guide tube 1 and a valve core ring plate 2 welded together, and also includes a valve core gasket assembly, a sealing gasket 3 is provided on the side of the valve core ring plate away from the valve core guide tube, and a through notch is provided in the middle of the valve core ring plate and the sealing gasket, and the valve core gasket assembly includes a horizontal portion 4 and a threaded valve core rod 5 passing through the through notch, the horizontal portion abuts against a side of the sealing gasket away from the valve core ring plate, and the threaded valve core rod is threaded with a locking nut 6. Preferably, the horizontal portion and the threaded valve core rod are welded together. Specifically, a groove is provided in the center of the horizontal portion, and one end of the threaded valve core rod extends into the groove and is welded to the horizontal portion.

[0018] The surface of the horizontal portion is hardened. Preferably, the side surface of the horizontal portion away from the sealing gasket and the side surface are hardened.

[0019] A spring washer 7 and a flat washer 8 are also provided between the locking nut and the valve core wrapping plate to improve the connection stability.

[0020] The working principle of the utility model is: a sealing gasket is arranged on the valve core wrapping plate, then a valve core gasket assembly is arranged, then a flat gasket and a spring gasket are arranged, and finally a locking nut is screwed and tightened.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wear-resistant one-way valve core, characterized in that: It includes a valve core guide tube and a valve core ring plate welded together, and also includes a valve core gasket assembly. A sealing gasket is provided on the side of the valve core ring plate away from the valve core guide tube. A through notch is provided in the middle of the valve core ring plate and the sealing gasket. The valve core gasket assembly includes a horizontal portion and a threaded valve core rod passing through the through notch. The horizontal portion abuts against a side of the sealing gasket away from the valve core ring plate, and a locking nut is screwed onto the threaded valve core rod.

2. A wear-resistant one-way valve core according to claim 1, characterized in that: The horizontal portion and the threaded valve core rod are welded.

3. A wear-resistant one-way valve core according to claim 2, characterized in that: A groove is provided at the center of the horizontal part, and one end of the threaded valve core rod extends into the groove and is welded to the horizontal part.

4. A wear-resistant one-way valve core according to claim 3, characterized in that: The horizontal portion is surface hardened.

5. The wear-resistant one-way valve core according to claim 4, characterized in that: A spring washer and a flat washer are also provided between the locking nut and the valve core wrapping plate.

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