Water outlet pipe orifice sealing structure in contact with surface of valve core

Abstract

The utility model relates to the technical field of ball valves, and discloses a water outlet pipe orifice sealing structure contacted with the surface of a valve core, which comprises a sealing pipe fitting and a sealing ring, a port placing part is arranged at one end of the sealing pipe fitting close to the valve core, a port edge covering part is annularly arranged at one end of the port placing part close to the valve core, the sealing ring is arranged in the port placing part, and the sealing ring is arranged in the port edge covering part. The end opening edge wrapping part forms a wrapping structure for the end, close to the valve element, of the sealing ring. The multi-way ball valve is simple in structure, good in sealing effect and capable of solving the problems that a sealing ring at a port of a water outlet pipe of an existing multi-way ball valve is prone to deformation under water pressure impact, sealing is not tight, and water leaks.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field more specifically is related to a water outlet pipe mouth sealing structure with valve core surface contact. BACKGROUND

[0002] In actual field irrigation, the field land is not completely flat, but has different slopes, and the terraces, hillside land, forest area, scenic greenery, desert green belt and the like all belong to this kind of terrain, and the multi-port ball valve has obvious advantages in the application in this kind of terrain in the farmland irrigation system, and then the multi-port ball valve is widely applied to control the flow direction and flow of water in the farmland irrigation system.

[0003] The multi-port ball valve water outlet pipe has two-end water outlet pipes, and the two-end water outlet pipes are circular ports, and the sealing ring of the one end port in contact with the valve ball core surface is inlaid in the top of the port, and this structure in actual irrigation, because the size of water flow needs to be adjusted according to the actual situation, the opening and closing degree of the water outlet port on the ball core is adjusted, so that the water outlet port on the ball core and the port on the water outlet pipe are not aligned, and then when the water pressure through the valve core is large, the high-speed water flow will impact the sealing ring into Figure 1 the deformation condition shown, causing the right water outlet pipe of the L-shaped three-way ball valve to leak when the left water outlet pipe A leaks due to the sealing ring being recessed into the pipe, so that the sealing ring of the water outlet pipe port and the ball core surface are not tightly closed, as shown in Figure 2 the same reason, when the L-shaped ball core water outlet port turns to the left water outlet pipe, the right side B also leaks due to the loose sealing, which not only causes waste of water resources, but also affects the normal operation of the irrigation system and increases the maintenance cost. INVENTION CONTENTS

[0004] Therefore, the utility model provides a water outlet pipe port sealing structure with valve core surface contact, simple structure, good sealing effect, can solve the problem of the existing multi-port ball valve water outlet pipe port sealing ring being easily deformed under water pressure impact, leading to loose sealing and water leakage.

[0005] To achieve the above purpose, the water outlet pipe port sealing structure with valve core surface contact provided by the utility model comprises a sealing pipe and a sealing ring, one end of the sealing pipe close to the valve core is provided with a port placing part, a port edge covering part is arranged around one end of the port placing part close to the valve core, the sealing ring is arranged in the port placing part, and the port edge covering part forms a wrapping structure on one end of the sealing ring close to the valve core.

[0006] Preferably, the inner diameter of the port edge covering part is smaller than the inner diameter of the port placing part and larger than the inner diameter of the sealing ring.

[0007] Preferably, the sealing pipe, the port placement part, and the port edging part are integrally formed structures, and all three are made of the same material.

[0008] Preferably, the sealing pipe, the port placement part, and the port edging part are made of either metal or plastic.

[0009] Preferably, the end of the sealing fitting away from the valve core is detachably connected to a water outlet pipe.

[0010] Preferably, the sealing pipe and the water outlet pipe are connected by screws or adhesive.

[0011] Preferably, a sealing gasket is provided between the sealing pipe and the water outlet pipe.

[0012] As can be seen from the above technical solution, compared with the prior art, the water outlet sealing structure disclosed in this utility model, which contacts the valve core surface, can wrap the connection between the sealing ring and the port placement part through the port edge, so that the water flow will not impact and deform the sealing ring as before, thus ensuring a good seal between the water outlet port and the valve core surface, reducing water leakage, and improving the stability of the irrigation system and the efficiency of water resource utilization. At the same time, as the sealing pipe and sealing ring are vulnerable parts, this structure design makes it easy for farmers to replace them at low cost, without having to replace the entire valve, reducing the cost of use and extending the service life of the valve. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram showing the dented seal at the outlet of an existing ball valve due to impact.

[0015] Figure 2 This is a schematic diagram illustrating water leakage from the outlet pipes on both sides of the existing ball valve during use.

[0016] Figure 3 This is a structural diagram of the water outlet sealing structure of this utility model;

[0017] Figure 4 This is a disassembly diagram of the water outlet sealing structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: Sealing fitting-1; Port placement part-2; Port edging part-3; Sealing ring-4; Sealing gasket-5; Outlet pipe-6. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of an exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Please see the appendix Figures 3-4 This utility model discloses a water outlet sealing structure that contacts the valve core surface.

[0021] The water outlet sealing structure that contacts the valve core surface provided by this utility model includes a sealing pipe 1, a port placement part 2, a port edging part 3, and a sealing ring 4 embedded in the sealing pipe 1. The sealing ring 4 and the sealing pipe 1 can be detached or integrally formed. The detachable structure can improve the portability of maintenance and replacement of the sealing ring 4, and the integrally formed structure can improve the stability of the sealing ring 4 during use and reduce the probability of accidental situations such as movement or deformation of the sealing ring 4.

[0022] The port placement part 2 is located at the end of the sealing pipe 1 near the valve core, the port edging part 3 is located at the end of the port placement part 2 near the valve core, and the sealing ring 4 is located inside the port placement part 2. The port edging part 3 forms a wrapping structure around the end of the sealing ring 4 near the valve core, so that the water flow can no longer impact and deform the sealing ring 4 as before.

[0023] To achieve a better sealing effect, the inner diameter of the port edging part 3 is smaller than the inner diameter of the port placement part 2 but larger than the inner diameter of the sealing ring 4. The port edging part 3 forms a semi-enclosed shape around the end of the sealing ring 4 near the valve core. On the one hand, the edging part 3 encloses the outer diameter of the sealing ring 4, preventing water from the valve core from entering the gap between the outer diameter of the sealing ring 4 and the port placement part 2, which would cause the sealing ring 4 to deform and dent. On the other hand, it makes the inner diameter of the sealing ring 4 fit against the surface of the valve core, achieving a better sealing effect.

[0024] It should be noted that the sealing pipe 1, the port placement part 2, and the port edging part 3 are integrally molded structures, and all three are made of the same material. The sealing pipe 1, the port placement part 2, and the port edging part 3 are made of either metal or plastic. That is, the sealing pipe 1, the port placement part 2, and the port edging part 3 can be made of metal through injection molding or plastic through injection molding.

[0025] To further optimize the above technical solution, the end of the sealing pipe 1 away from the valve core is detachably connected to the water outlet pipe 6. Since the sealing pipe 1 and the sealing ring 4 are vulnerable parts, such a detachable structure makes it easy for farmers to replace them at low cost and extends the service life of the valve.

[0026] It should be noted that the sealing pipe 1 and the water outlet pipe 6 are connected by screws or adhesive. When screws are used, the connection between the sealing pipe 1 and the water outlet pipe 6 is provided with corresponding threads, and a sealing gasket 5 is provided between the sealing pipe 1 and the water outlet pipe 6 to ensure the sealing performance between the sealing pipe 1 and the water outlet pipe 6.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure for a water outlet that contacts the surface of a valve core, characterized in that, The device includes a sealing tube (1) and a sealing ring (4). The sealing tube (1) has a port placement part (2) at one end near the valve core. The port placement part (2) has a port wrapping part (3) around one end near the valve core. The sealing ring (4) is located inside the port placement part (2). The port wrapping part (3) forms a wrapping structure around the end of the sealing ring (4) near the valve core.

2. The outlet sealing structure in contact with the valve core surface according to claim 1, characterized in that, The inner diameter of the port edging portion (3) is smaller than the inner diameter of the port placement portion (2) and larger than the inner diameter of the sealing ring (4).

3. The outlet sealing structure in contact with the valve core surface according to claim 1, characterized in that, The sealing pipe (1), the port placement part (2) and the port edging part (3) are integrally formed structures and are made of the same material.

4. The outlet sealing structure in contact with the valve core surface according to claim 3, characterized in that, The sealing pipe (1), the port placement part (2), and the port edging part (3) are made of either metal or plastic.

5. The outlet sealing structure in contact with the valve core surface according to claim 1, characterized in that, The sealing pipe (1) is detachably connected to the outlet pipe (6) at the end away from the valve core.

6. The outlet sealing structure in contact with the valve core surface according to claim 5, characterized in that, The sealing pipe (1) and the water outlet pipe (6) are connected by screws or adhesive.

7. The outlet sealing structure in contact with the valve core surface according to claim 5, characterized in that, A sealing gasket (5) is provided between the sealing pipe (1) and the water outlet pipe (6).

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