Joint of marine ball valve

Abstract

The utility model discloses a joint of a marine ball valve, which comprises a small-diameter pipe used for being connected with an external pipeline and internally provided with a small-diameter flow channel; one end of the reducer pipe is connected with the small-diameter pipe, a variable-diameter flow channel is arranged in the reducer pipe, and the variable-diameter flow channel is communicated with the small-diameter flow channel; the other end of the variable-diameter pipe is connected with the large-diameter pipe, a large-diameter flow channel is arranged in the large-diameter pipe, the variable-diameter flow channel is communicated with the large-diameter flow channel, and the large-diameter pipe is communicated with the ball valve. The pipeline inner diameter of the small-diameter flow channel is smaller than that of the large-diameter flow channel, the fluid pressure of fluid in an external pipeline is obviously reduced in the process that the fluid flows to the large-diameter flow channel through the small-diameter flow channel, the fluid pressure borne by the ball valve is reduced, and due to the particularity of the opening and closing mode of the ball valve, the sealing performance of the ball valve is improved. And the large-diameter pipe is arranged, so that the control sensitivity of the ball valve to the fluid cannot be influenced. The variable-diameter channel is arranged between the small-diameter channel and the large-diameter channel, so that water pressure can be smoothly transited, and the situation that the service life of the large-diameter pipe is affected due to strong impact of the water pressure on the large-diameter pipe is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of joints, and in particular to a joint for a marine ball valve. Background Art

[0002] Marine ball valves are devices used to control the pressure, flow rate, and flow direction of fluids within ship pipelines to meet ship environmental conditions. The connectors of marine ball valves are used to connect the ball valve to external pipelines.

[0003] Ships are subject to high water pressure during navigation, so marine ball valves need to have strong high-pressure resistance. Existing marine ball valves cannot increase the high-pressure resistance of the ball valve.

[0004] Based on this, it is necessary to propose a joint for a marine ball valve to enhance the high pressure resistance of the marine ball valve, which has become an important technical problem that needs to be solved urgently. Utility Model Content

[0005] The present application provides a joint for a marine ball valve, aiming to solve the problem in the prior art that the joint cannot enhance the high-pressure resistance of the marine ball valve.

[0006] To achieve the above-mentioned purpose, the present application proposes a joint for a marine ball valve, comprising: a small-diameter pipe, the small-diameter pipe is used to connect to an external pipe, and a small-diameter flow channel is provided in the small-diameter pipe; a reducing pipe, one end of the reducing pipe is connected to the small-diameter pipe, a reducing flow channel is provided in the reducing pipe, and the reducing flow channel is connected to the small-diameter flow channel; a large-diameter pipe, the other end of the reducing pipe is connected to the large-diameter pipe, a large-diameter flow channel is provided in the large-diameter pipe, the reducing flow channel is connected to the large-diameter flow channel, and the large-diameter pipe is connected to the ball valve.

[0007] In some embodiments, it also includes: multiple card blocks, which are movably arranged in the small-diameter tube, and the external tube is provided with a card slot adapted to the card blocks; an elastic member, which is arranged between the card block and the small-diameter tube; an inner nut, which is arranged at the end of the small-diameter tube, and the inner nut abuts the card block.

[0008] In some embodiments, the clamping block includes: a clamping plane, the clamping plane is used to abut against the clamping slot; and an arcuate surface, the arcuate surface is connected to the clamping plane.

[0009] In some embodiments, it also includes: a first seal, which is set between the small-diameter tube and the external pipe; and a second seal, which is set between the inner nut and the external pipe.

[0010] In some embodiments, the inner nut is provided with a threaded portion.

[0011] In some embodiments, an internal thread is provided in the large diameter tube, and a sealing gasket is provided between the large diameter tube and the ball valve.

[0012] The technical solution of this application proposes a connector for a marine ball valve, comprising: a small-diameter pipe, the small-diameter pipe being used to connect to an external pipe, a small-diameter flow channel being provided within the small-diameter pipe; a reducing pipe, one end of which is connected to the small-diameter pipe, a reducing pipe having a reducing flow channel provided therein, the reducing flow channel being connected to the small-diameter flow channel; and a large-diameter pipe, the other end of which is connected to the large-diameter pipe, a large-diameter flow channel provided therein, the reducing flow channel being connected to the large-diameter flow channel, and the large-diameter pipe being connected to the ball valve. The inner diameter of the small-diameter flow channel is significantly smaller than that of the large-diameter flow channel, resulting in a significant decrease in the fluid pressure of the fluid in the external pipe as it flows from the small-diameter flow channel to the large-diameter flow channel, thereby reducing the fluid pressure on the ball valve. Furthermore, due to the particularity of the ball valve's opening and closing methods, the provision of a large-diameter pipe does not affect the ball valve's sensitivity to fluid control. Providing a reducing flow channel between the small-diameter flow channel and the large-diameter flow channel allows for a smooth transition of water pressure, preventing strong impacts of water pressure on the large-diameter pipe, which could affect its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a joint of a marine ball valve according to an embodiment of the present application;

[0015] Figure 2 This is a cross-sectional view of a joint of a marine ball valve for connecting an external pipe and the ball valve according to an embodiment of the present application;

[0016] Figure 3 for Figure 2 A partial enlarged view of part A in the middle;

[0017] Figure 4 This is a cross-sectional view of a joint of a marine ball valve according to an embodiment of the present application.

[0018] In the figure: internal nut 1, small diameter tube 2, reducing tube 3, large diameter tube 4, ball valve 5, sealing gasket 6, external pipe 7, first sealing member 8, elastic member 9, second sealing member 10, first limiting portion 11, clamping block 12, arcuate surface 121, clamping plane 122, large diameter flow channel 13, reducing diameter flow channel 14, small diameter flow channel 15. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0022] In addition, the descriptions of "first" and "second" in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the present application proposes a connector for a marine ball valve 5, comprising: a small-diameter pipe 2, the small-diameter pipe 2 is used to connect to an external pipe 7, and a small-diameter flow channel 15 is provided in the small-diameter pipe 2; a reducing pipe 3, one end of the reducing pipe 3 is connected to the small-diameter pipe 2, and a reducing flow channel 14 is provided in the reducing pipe 3, and the reducing flow channel 14 is connected to the small-diameter flow channel 15; a large-diameter pipe 4, the other end of the reducing pipe 3 is connected to the large-diameter pipe 4, and a large-diameter flow channel 13 is provided in the large-diameter pipe 4, and the reducing flow channel 14 is connected to the large-diameter flow channel 13, and the large-diameter pipe 4 is connected to the ball valve 5.

[0024] Specifically, the inner diameter of the small-diameter flow channel 15 is significantly smaller than that of the large-diameter flow channel 13, resulting in a significant decrease in the fluid pressure in the external pipe 7 as the fluid flows through the small-diameter flow channel 15 to the large-diameter flow channel 13, thereby reducing the fluid pressure on the ball valve 5. Furthermore, due to the special opening and closing methods of the ball valve 5, the installation of the large-diameter pipe 4 does not affect the ball valve 5's sensitivity to fluid control. The provision of the variable-diameter flow channel 14 between the small-diameter flow channel 15 and the large-diameter flow channel 13 allows for a smooth transition in water pressure, preventing strong pressure impacts on the large-diameter pipe 4, which could affect its service life.

[0025] See Figure 2 and Figure 3 As shown, in some embodiments, it also includes: multiple blocks 12, multiple blocks 12 are movably arranged in the small-diameter tube 2, and the external pipe 7 is provided with a card slot adapted to the block 12; an elastic member 9, an elastic member 9 is provided between the block 12 and the small-diameter tube 2; an inner nut 1, the inner nut 1 is provided at the end of the small-diameter tube 2, and the inner nut 1 abuts the block 12. When the external pipe 7 extends into the small-diameter tube 2, the end of the small-diameter tube 2 first contacts the block 12, giving pressure to the block 12, so that the block 12 presses the elastic member 9, thereby forcing the elastic member 9 to contract, and the block 12 moves toward the inner wall of the small-diameter tube 2. At this time, the small-diameter tube 2 can continue to extend inwardly. When the card slot moves to the block 12, under the action of the elastic member 9, the block 12 pops out and abuts the card slot, forming a limit for the external pipe 7, thereby preventing the external pipe 7 from being separated from the small-diameter tube 2 under the action of high pressure. Preferably, a first limiting portion 11 is provided in the small-diameter tube 2 to abut against the end of the external pipe 7, and a second limiting portion is provided in the external pipe 7 to abut against the end of the internal nut 1. Both the first limiting portion 11 and the second limiting portion are used to limit the insertion depth of the external pipe 7. The elastic member 9 is preferably made of rubber, a spring sheet, or other elastic structure.

[0026] See Figure 2 and Figure 3 As shown, in some embodiments, the clamping block 12 includes: a clamping plane 122, which is used to abut the clamping slot; the clamping plane 122 is used to better abut the clamping slot to ensure its retaining effect on the external pipe 7; and a curved surface 121, which is connected to the clamping plane 122. The provision of the curved surface 121 enables the end of the small-diameter pipe 2 to push the clamping block 12 away.

[0027] See Figure 2 and Figure 3 As shown, in some embodiments, the present invention further includes: a first seal 8, which is provided between the small-diameter tube 2 and the external pipe 7; and a second seal 10, which is provided between the inner nut 1 and the external pipe 7. The first seal 8 and the second seal 10 are both O-rings, which are used to ensure a sealing effect between the external pipe 7 and the small-diameter tube 2.

[0028] See Figure 1 As shown, in some embodiments, the inner nut 1 is provided with a screwing portion. The provision of the screwing portion facilitates screwing the inner nut 1 into the small-diameter tube 2.

[0029] See Figure 2 and Figure 3 As shown, in some embodiments, the large-diameter tube 4 is internally threaded, and a sealing gasket 6 is provided between the large-diameter tube 4 and the ball valve 5. The large-diameter tube 4 is threadedly connected to the ball valve 5, and waterproof adhesive is provided between the large-diameter tube 4 and the ball valve 5. The waterproof adhesive is used to strengthen the connection between the large-diameter tube 4 and the ball valve 5 and enhance the sealing performance between the two. The sealing gasket 6 is used to seal and improve the sealing effect between the large-diameter tube 4 and the ball valve 5.

[0030] The above description is only a partial or preferred embodiment of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields, is included in the scope of protection of the present application.

Claims

1. A joint for a marine ball valve, characterized in that: include: A small-diameter tube (2), the small-diameter tube (2) being used to connect to an external pipeline (7), and a small-diameter flow channel (15) being provided in the small-diameter tube (2); A reducing pipe (3), one end of which is connected to the small-diameter pipe (2), a reducing flow channel (14) is provided in the reducing pipe (3), and the reducing flow channel (14) is connected to the small-diameter flow channel (15); A large diameter pipe (4), the other end of the reducing pipe (3) is connected to the large diameter pipe (4), a large diameter flow channel (13) is provided in the large diameter pipe (4), the reducing flow channel (14) is connected to the large diameter flow channel (13), and the large diameter pipe (4) is connected to the ball valve (5).

2. The joint of the marine ball valve according to claim 1, characterized in that: Also includes: A plurality of card blocks (12), wherein the plurality of card blocks (12) are movably arranged in the small-diameter tube (2), and the external pipe (7) is provided with a card slot adapted to fit the card blocks (12); an elastic member (9), the elastic member (9) being arranged between the clamping block (12) and the small-diameter tube (2); An inner nut (1) is provided at the end of the small-diameter tube (2), and the inner nut (1) abuts against the clamping block (12).

3. The joint of the marine ball valve according to claim 2, characterized in that: The card block (12) comprises: A clamping plane (122), the clamping plane (122) being used to abut against the clamping slot; An arcuate surface (121), wherein the arcuate surface (121) is connected to the clamping plane (122).

4. The joint of the marine ball valve according to claim 2, characterized in that: Also includes: a first sealing member (8), the first sealing member (8) being provided between the small-diameter tube (2) and the external pipe (7); A second sealing member (10) is provided between the inner nut (1) and the outer pipe (7).

5. The joint of the marine ball valve according to claim 2, characterized in that: The inner nut (1) is provided with a screwing portion.

6. The joint of the marine ball valve according to claim 1, characterized in that: An internal thread is provided in the large diameter tube (4), and a sealing gasket (6) is provided between the large diameter tube (4) and the ball valve (5).

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