Wear-resistant marine three-way valve

Abstract

The utility model belongs to the technical field of three-way ball valves, and particularly relates to a wear-resistant marine three-way valve which comprises an upper valve body, a water outlet end is arranged at the top of the upper valve body, a valve element is rotatably connected in the water outlet end, a hollow extension pipe is arranged at the top of the valve element, and the extension pipe is tightly attached to the inner wall of the water outlet end and rotates relatively. The bottom of the upper valve body is fixedly connected with a lower valve body through a plurality of sets of bolts, two water inlet ends are symmetrically distributed on the bottom side of the lower valve body, an included angle is formed between the axis of each water inlet end and the rotating axis of the valve element, and the valve element channel can be communicated with the valve element channel. By arranging the valve element channel in the smooth transition arc shape, when water flow passes through the valve element channel, the flowing direction of the water flow can be changed more gently, and then the problem that the water flow direction is suddenly changed, so that the water flow directly impacts the interior of the valve element, and impact abrasion is caused to the valve element is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-way ball valves, in particular to a wear-resistant marine three-way valve. Background Art

[0002] A three-way valve has three ports, which are divided into a converging valve (two inlets and one outlet) and a diverting valve (two outlets and one inlet). In order to keep the catch fresh, offshore fishing vessels usually pump seawater into the boat and temporarily maintain the catch on board. Therefore, various pipes and control valves, including various three-way valves, need to be installed. When seawater is directly pumped from the sea, various impurities mixed in the seawater will also enter the pipes and three-way valves. The impurities inside the pipes will flow inside the three-way valve and impact the internal parts of the three-way valve, causing wear. In addition, traditional three-way valves are mostly L-type or T-type configurations. Due to the right-angle setting of the valve core passage at the water flow turning point in the three-way valve, the water flow has a greater impact on the valve core, which will also cause the valve core of the three-way valve to wear over the years.

[0003] Chinese patent application number CN219809439U discloses a wear-resistant marine three-way valve, comprising a three-way valve body, marine piping, a protective pipe, and a filter screen. The outer wall of the three-way valve body is provided with a feed pipe and a discharge pipe. The marine piping connects to the feed and discharge pipes of the three-way valve body, and filters are installed at each connection point. The filters filter the circulating medium to prevent impurities from entering the valve assembly of the three-way valve body.

[0004] However, the above has the following shortcomings:

[0005] 1. Although the above patents filter out impurities by setting up a filter to prevent impurities from flowing with high-speed water and causing wear on the valve core, the above patents still have a traditional L-shaped or T-shaped configuration and cannot effectively prevent wear caused by direct impact of water on the valve core.

[0006] 2. In actual usage scenarios, when the valve core rotates to connect the water inlet and outlet, due to the large pressure difference between the water inlet and outlet of the three-way valve, water flows through the valve core at a high speed, which is particularly prone to causing wear on the opening edge of the valve core passage. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem of providing a valve core passage with a smooth transition arc, so that the water flow can change its flow direction more smoothly when the water flows through the valve core passage, thereby effectively avoiding the problem of sudden change in water flow direction causing the water flow to directly impact the valve core and cause impact wear on the valve core; by providing a reflux tank to store water therein, the pressure of the seawater in the reflux tank is utilized to offset and reduce the pressure difference between the water inlet end and the water outlet end at the moment when the water outlet end and the water inlet end are connected, and the impact force of the water flow is converted into a uniform liquid pressure on the side wall of the valve core passage, further avoiding the water flow to directly impact the valve core passage, and reducing the impact wear on the edge of the valve core passage opening; by providing a metal sleeve, impurities in the filtered water can be intercepted and filtered, avoiding the impurities from entering the valve core passage and causing wear on the valve core passage.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant marine three-way valve, comprising an upper valve body, a lower valve body fixedly connected to the bottom of the upper valve body, the upper valve body and the lower valve body being fastened together by multiple sets of bolts, a valve core being rotatably connected to the upper valve body and the lower valve body, two water inlet ends being symmetrically distributed on the bottom of the lower valve body, an angle being formed between the axis of each water inlet end and the rotation axis of the valve core, a valve core passage being opened in the valve core, the valve core passage being in the shape of a smoothly transitioning arc, and the valve core passage being able to communicate with the water inlet end.

[0009] An extension tube is provided on the top of the valve core. The interior of the extension tube is hollow and connected to the valve core passage. There is a smooth transition between the valve core passage and the extension tube. A water outlet end is provided on the top of the upper valve body. The water outlet end is coaxially rotatably connected to the extension tube. The top of the water outlet end is fastened to a reflux tank by multiple groups of bolts. The end of the extension tube extends into the reflux tank. A sealing gasket is provided between the water outlet end and the reflux tank.

[0010] The inner wall of the water outlet end fits tightly with the outer wall of the extension tube, a semi-annular avoidance groove is provided on the side wall of the water outlet end, and a handle is fixedly connected to the outer wall of the extension tube at a position corresponding to the avoidance groove.

[0011] The upper valve body is fixedly connected to a first sealing ring at the root of the water outlet end, which surrounds the outside of the extension tube. The first sealing ring fits tightly with the surface of the valve core and rotates relative to it. The lower valve body is fixedly connected to a second sealing ring at the root of each water inlet end. Each of the second sealing rings is coaxial with the corresponding water inlet end, and each of the second sealing rings fits tightly with the surface of the valve core and slides relative to it.

[0012] The ends of the two water inlet ends are respectively fixedly connected to two symmetrical elbows, the axial direction of one end of each elbow away from the water inlet end is parallel to the ground, and each elbow is fastened to the corresponding water inlet end by multiple sets of bolts.

[0013] A metal sleeve is fixedly connected between each water inlet end and the elbow, and the end of each metal sleeve extends into the corresponding water inlet end and fits tightly with the inner wall of the water inlet end. The end plane of each metal sleeve is provided with uniform filter holes.

[0014] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The use of an arc-shaped valve core passage instead of the traditional L-shaped or T-shaped configuration can make the water flow change direction more smoothly and avoid the water flow directly impacting the valve core and causing impact wear on the valve core.

[0016] (2) By setting a reflux tank at the outlet, the pressure of the remaining seawater in the reflux tank is used to reduce the pressure difference between the inlet and outlet ends at the moment when the inlet and outlet ends are connected, thereby reducing the impact wear on the edge of the valve core passage opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0018] Figure 2 This is a side view of the patent.

[0019] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0020] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0021] Figure 5 This is a schematic diagram of the internal structure of this patent.

[0022] Figure 6 It is a structural diagram of the valve core.

[0023] Explanation of the reference numerals: upper valve body 10; lower valve body 11; water inlet end 12; water outlet end 13; valve core 14; valve core passage 15; extension pipe 16; avoidance groove 17; handle 18; reflux tank 19; first sealing ring 20; sealing gasket 21; second sealing ring 22; metal sleeve 23; elbow 24; filter hole 25. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6As shown, a wear-resistant marine three-way valve includes an upper valve body 10, a water outlet end 13 is provided on the top of the upper valve body 10, a valve core 14 is rotatably connected to the water outlet end 13, a hollow extension tube 16 is provided on the top of the valve core 14, the extension tube 16 is tightly fitted with the inner wall of the water outlet end 13 and rotates relative to it, a valve core passage 15 is opened inside the valve core 14, the valve core passage 15 is in a smoothly transitional arc shape, the valve core passage 15 is connected to the extension tube 16, the bottom of the upper valve body 10 is fixedly connected to the lower valve body 11 by multiple groups of bolts, and two water inlet ends 12 are symmetrically distributed on the bottom side of the lower valve body 11, and there is an angle between the axis of the water inlet end 12 and the rotation axis of the valve core 14, and the valve core passage 15 can be connected to the valve core passage 15.

[0026] By providing a valve core passage 15 with a smooth transition arc, the water flow can change its flow direction more smoothly when passing through the valve core passage 15, thereby effectively avoiding the problem of sudden change in water flow direction causing the water flow to directly impact the valve core 14 and cause impact wear on the valve core 14.

[0027] like Figure 3 、 Figure 4 and Figure 5 As shown, a first sealing ring 20 is fixedly connected at the root of the water outlet end 13 in the upper valve body 10, and the first sealing ring 20 surrounds the outside of the extension tube 16. The first sealing ring 20 fits tightly against the surface of the valve core 14 and rotates relative to it. A second sealing ring 22 is fixedly connected at the root of each water inlet end 12 in the lower valve body 11, and each second sealing ring 22 coincides with the axis of the water inlet end 12, and the second sealing ring 22 fits tightly against the surface of the valve core 14 and slides relative to it.

[0028] By providing the first sealing ring 20 and the second sealing ring 22 , a better sealing effect can be provided to the valve core 14 , thereby preventing leakage when water flows.

[0029] like Figure 1 、 Figure 2 and Figure 5 As shown, a semi-annular avoidance groove 17 is provided on the outer wall of the water outlet end 13 , and a handle 18 is fixedly connected to the outer wall of the extension tube 16 at a position corresponding to the avoidance groove 17 .

[0030] By providing the avoidance groove 17 and the handle 18 , it is convenient for an operator to change the connection direction of the three-way valve.

[0031] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, a reflux tank 19 is fixedly connected to the top of the water outlet end 13 , a sealing gasket 21 is fixedly connected between the reflux tank 19 and the water outlet end 13 , and the top end of the extension tube 16 extends into the reflux tank 19 and communicates with the reflux tank 19 .

[0032] By providing a reflux tank 19 to store water therein, the pressure of the seawater in the reflux tank 19 is utilized to offset and reduce the pressure difference between the water inlet end 12 and the water outlet end 13 at the moment when the water outlet end 13 and the water inlet end 12 are connected, and the impact force of the water flow is converted into a uniform liquid pressure on the side wall of the valve core passage 15, further avoiding the water flow from directly impacting the valve core passage 15, and reducing the impact wear on the opening edge of the valve core passage 15.

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, each water inlet end 12 is fixedly connected to a bend pipe 24, and the axis of each bend pipe 24 at one end away from the water inlet end 12 is parallel to the ground. A metal sleeve 23 is fixedly connected between each water inlet end 12 and the bend pipe 24, and the end of each metal sleeve 23 extends into the corresponding water inlet end 12 and fits tightly with the inner wall of the water inlet end 12. Evenly distributed filter holes 25 are opened on the end plane of each metal sleeve 23.

[0034] By providing the elbow 24, the water supply pipe can be easily connected, and the arc-shaped valve core passage 15 can be assisted to prolong the time for the water flow to change direction, further reducing the impact of the water flow on the valve core passage 15, and by providing the metal sleeve 23, impurities in the filtered water can be intercepted and filtered, preventing impurities from entering the valve core passage 15 and causing wear on the valve core passage 15.

[0035] In this embodiment, initially, the handle 18 is located in the middle position of the avoidance groove 17, and the valve core passage 15 is not connected to the two water inlet ends 12. The two elbows 24 are connected to the two sets of water inlet pipes respectively, and then a sufficient amount of water is injected into the reflux tank 19. The water in the reflux tank 19 is poured into the valve core passage 15 and the liquid level is located inside the reflux tank 19. Then, the reflux tank 19 is connected to the drainage pipe.

[0036] When in use, both sets of water inlet pipes transport water to the water inlet end 12. The water is filtered when passing through the filter holes 25 on the metal sleeve 23, and various hard particle impurities mixed therein are filtered and intercepted, preventing impurities from entering the valve core passage 15 and causing wear and tear on the valve core passage 15.

[0037] Subsequently, the operator manually turns the handle 18 to rotate the valve core 14 in the upper valve body 10 and the lower valve body 11 until the valve core passage 15 is connected to one of the water inlet ends 12. At this time, the water pressure in the water inlet pipe is relatively high, so that water continuously enters the valve core passage 15 through the water inlet end 12. At the same time, since the valve core passage 15 is connected to the water inlet end 12, the water in the reflux tank 19 flows downward under the action of gravity and atmospheric pressure. The two streams of water meet and squeeze each other, so that the original impact force of the water flow is dispersed to form a uniform liquid pressure on the inner wall of the valve core passage 15, thereby preventing the opening edge of the valve core passage 15 from being damaged by impact.

[0038] Then, as the subsequent water from the water inlet pipe continuously flows into the three-way valve, the water in the reflux tank 19 is pushed up until it enters the drainage channel from the top of the reflux tank 19. During this process, the water flows through the valve core passage 15 with a gentle transition arc. The water changes its flow direction relatively smoothly in the valve core passage 15, effectively preventing the water from directly impacting the inner wall of the valve core passage 15 and causing impact wear on the valve core passage 15.

[0039] When it is necessary to change the water supply pipeline for water supply, the operator turns the handle 18 again to connect the valve core passage 15 with the other water inlet end 12. In the process of connecting with the other water inlet end 12, the valve core 14 rotates so that the valve core passage 15 is first disconnected from both water inlet ends 12. At this time, the water in the reflux tank 19 is no longer pushed upward, and remains in the reflux tank 19 and the valve core passage 15 until the valve core passage 15 is connected with the other water inlet end 12. At this time, the water in the reflux tank 19 again offsets and reduces the impact force of the water flow in the water supply pipeline, thereby protecting the valve core passage 15.

[0040] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0041] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0042] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A wear-resistant marine three-way valve, characterized in that: The utility model comprises an upper valve body (10), wherein the bottom of the upper valve body (10) is fixedly connected to the lower valve body (11), and the upper valve body (10) and the lower valve body (11) are fastened together by a plurality of sets of bolts, and a valve core (14) is rotatably connected inside the upper valve body (10) and the lower valve body (11), and two water inlet ends (12) are symmetrically distributed on the bottom of the lower valve body (11), and an angle is formed between the axis of each water inlet end (12) and the rotation axis of the valve core (14), and a valve core passage (15) is provided in the valve core (14), and the valve core passage (15) is in the shape of a smoothly transitioned arc, and the valve core passage (15) can be communicated with the water inlet end (12).

2. A wear-resistant marine three-way valve according to claim 1, characterized in that: An extension tube (16) is provided on the top of the valve core (14). The interior of the extension tube (16) is hollow and communicates with the valve core passage (15). A smooth transition is formed between the valve core passage (15) and the extension tube (16). A water outlet end (13) is provided on the top of the upper valve body (10). The water outlet end (13) is coaxially rotatably connected to the extension tube (16). The top of the water outlet end (13) is fastened to a reflux tank (19) by multiple groups of bolts. The end of the extension tube (16) extends into the reflux tank (19). A sealing gasket (21) is provided between the water outlet end (13) and the reflux tank (19).

3. A wear-resistant marine three-way valve according to claim 2, characterized in that: The inner wall of the water outlet end (13) is tightly fitted with the outer wall of the extension tube (16); a semi-annular avoidance groove (17) is provided on the side wall of the water outlet end (13); and a handle (18) is fixedly connected to the outer wall of the extension tube (16) at a position corresponding to the avoidance groove (17).

4. The wear-resistant marine three-way valve according to claim 2, characterized in that: A first sealing ring (20) surrounding the outside of the extension tube (16) is fixedly connected to the inner portion of the upper valve body (10) at the root of the water outlet end (13), and the first sealing ring (20) is tightly fitted with the surface of the valve core (14) and rotates relative to it. A second sealing ring (22) is fixedly connected to the inner portion of the lower valve body (11) at the root of each water inlet end (12), and each second sealing ring (22) is coaxial with the corresponding water inlet end (12), and each second sealing ring (22) is tightly fitted with the surface of the valve core (14) and slides relative to it.

5. The wear-resistant marine three-way valve according to claim 1, characterized in that: The ends of the two water inlet ends (12) are respectively fixedly connected to two mutually symmetrical curved pipes (24), the axis direction of one end of each curved pipe (24) away from the water inlet end (12) is parallel to the ground, and each curved pipe (24) is fastened to the corresponding water inlet end (12) by a plurality of sets of bolts.

6. The wear-resistant marine three-way valve according to claim 5, characterized in that: A metal sleeve (23) is fixedly connected between each water inlet end (12) and the elbow (24); the end of each metal sleeve (23) extends into the corresponding water inlet end (12) and fits tightly against the inner wall of the water inlet end (12); and uniform filter holes (25) are formed on the end plane of each metal sleeve (23).

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