Marine valve body capable of preventing seawater corrosion

Abstract

The utility model provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting component, and a lever component is rotatably connected with the valve body through the connecting component; the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece. The first connecting piece penetrates through a mounting hole in the valve body from the valve cavity, and a second connecting piece is arranged at the end, extending out of the valve cavity, of the first connecting piece. The first sealing piece, the first connecting piece and the third connecting piece are arranged at one end in the valve cavity and are not provided with threads, so that a waterproof layer can be conveniently arranged; the first connecting piece and the third connecting piece are connected in an inserting manner, so that mounting and dismounting are facilitated; the first sealing piece can prevent seawater in the valve cavity from permeating between the first connecting piece and the mounting hole, and the seawater can be effectively prevented from corroding the first connecting piece; therefore, the service life of the connecting assembly can be prolonged, and the service life of the valve body is further prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valves, in particular to a marine valve body capable of preventing seawater corrosion. BACKGROUND

[0002] Valve bodies are usually arranged on ships to open or close and ensure that seawater cannot flow into the ship and that sewage in the ship can be discharged. In existing valve bodies, a lever is connected to a valve disc, and a counterweight is connected to the other end of the lever. The counterweight is used to control the valve disc to always be in a closed state, so that seawater cannot flow into the ship cabin. In the prior art, the lever is installed on the valve body by the following method: a bolt is installed from the outside of the valve body, the threaded end of the bolt extends into the inside of the valve body to realize connection with the lever, and a gasket is arranged between the lever and the valve body to realize sealing. However, it is not convenient to arrange a waterproof layer at the threaded end extending into the valve body, or even if a waterproof layer is arranged, the waterproof layer at the threaded end of the bolt is easily damaged during the installation process and a long working process. Since seawater contains a large amount of salt, seawater is prone to corrode the threaded end of the bolt, causing the valve body to fail. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the application provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting assembly, a valve cavity is formed in the valve body, a valve disc assembly is arranged in the valve cavity, a lever assembly is connected to the valve disc assembly, and the lever assembly is rotationally connected to the valve body through the connecting assembly.

[0004] The connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece, the first sealing piece is sleeved on the first connecting piece, the first connecting piece passes through an installation hole in the valve body from the valve cavity, a second connecting piece is arranged on the end of the first connecting piece extending out of the valve cavity, an insertion slot with an opening facing the center of the valve body is formed on the end of the first connecting piece located in the valve cavity, and the third connecting piece is rotationally connected with the lever assembly and is inserted into the insertion slot.

[0005] In some embodiments of the application, the first connecting piece is a fastener.

[0006] In some embodiments of the application, the second connecting piece is a nut.

[0007] In some embodiments of the application, the first sealing piece is a gasket.

[0008] In some embodiments of the application, the connecting assembly further comprises a second sealing piece, the second sealing piece is sleeved on the end of the first connecting piece extending out of the valve cavity, and is located between the valve body and the second connecting piece.

[0009] In some embodiments of the present application, the valve disc assembly comprises a valve disc body, a third sealing member and a pressing plate arranged in sequence; the valve disc body, the third sealing member and the pressing plate are connected by a fastener.

[0010] In some embodiments of the present application, the first connecting member is a bolt.

[0011] In some embodiments of the present application, the first connecting member is a screw.

[0012] Compared with the prior art, the marine valve body capable of preventing seawater corrosion has the following advantages and beneficial effects: the marine valve body capable of preventing seawater corrosion comprises a valve body and a connecting assembly, and the lever assembly is rotationally connected with the valve body through the connecting assembly; the connecting assembly comprises a first connecting member, a second connecting member, a third connecting member and a first sealing member; the first sealing member is sleeved on the first connecting member and is used for sealing the first connecting member and the valve body; the first connecting member passes through the mounting hole on the valve body from the valve cavity, and the end of the first connecting member extending out of the valve cavity is provided with the second connecting member; the end of the first connecting member located in the valve cavity is formed with a plug-in groove with an opening facing the center of the valve body; the third connecting member is rotationally connected with the lever assembly and is plugged into the plug-in groove. In this way, the first sealing member, the end of the first connecting member located in the valve cavity and the third connecting member are not provided with threads, so that a waterproof layer can be easily arranged; the first connecting member and the third connecting member are connected in a plug-in manner, so that the first connecting member and the third connecting member are convenient to install and disassemble; the first sealing member can prevent seawater in the valve cavity from penetrating between the first connecting member and the mounting hole, so that the first connecting member can be effectively prevented from being corroded by seawater; thus, the service life of the connecting assembly can be improved, and the service life of the valve body can be further improved.

[0013] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments thereof, and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0015] Figure 1 is a front view of the marine valve body capable of preventing seawater corrosion provided by an exemplary embodiment of the present application;

[0016] Figure 2 is Figure 1 is a sectional view at A-A in

[0017] Figure 3 is a front view of the marine valve body capable of preventing seawater corrosion provided by an exemplary embodiment of the present application;

[0018] Figure 4 is Figure 3Cross-sectional view at B-B.

[0019] In the drawings:

[0020] 100, valve body; 101, valve cavity; 200, valve disc assembly; 201, valve disc body; 202, third sealing member; 203, pressing plate; 300, connecting assembly; 301, first connecting member; 302, second connecting member; 303, third connecting member; 304, first sealing member; 305, second sealing member; 400, lever assembly. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other at will.

[0022] A valve body is usually configured on a ship to open or close, to ensure that seawater cannot flow into the ship and sewage in the ship is discharged. In the existing valve body, a lever is connected to the valve disc, and the other end of the lever is connected to a counterweight. The counterweight is used to control the valve disc to always be in a closed state, so that seawater cannot flow into the ship cabin. In the prior art, the lever is installed on the valve body by the following method: a bolt is installed from the outside of the valve body, the threaded end of the bolt extends into the inside of the valve body to realize the connection with the lever, and a gasket is arranged between the lever and the valve body to realize sealing. However, it is not convenient to set a waterproof layer at the threaded end extending into the valve body, or even if a waterproof layer is set, the waterproof layer at the threaded end of the bolt is easily damaged during the installation process and long-term working process. Since seawater contains a large amount of salt, seawater is prone to corrode the threaded end of the bolt, causing the valve body to fail.

[0023] Based on this, the example embodiment of the present application provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting assembly, and a lever assembly is rotationally connected to the valve body through the connecting assembly; the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece; the first sealing piece is sleeved on the first connecting piece to realize sealing between the first connecting piece and the valve body; the first connecting piece passes through a mounting hole on the valve body from inside a valve cavity, and a second connecting piece is arranged on an end of the first connecting piece extending out of the valve cavity; an insertion slot with an opening facing the center of the valve body is formed on an end of the first connecting piece located inside the valve cavity; the third connecting piece is rotationally connected to the lever assembly and is inserted into the insertion slot at an end thereof. In this way, the first sealing piece, the end of the first connecting piece located inside the valve cavity and the third connecting piece are all not provided with threads, so that a waterproof layer can be easily arranged; the first connecting piece and the third connecting piece are connected through insertion, which facilitates installation and disassembly and does not damage the waterproof layer during installation and disassembly; the first sealing piece can prevent seawater in the valve cavity from penetrating between the first connecting piece and the mounting hole, thereby effectively preventing seawater corrosion of the first connecting piece; thus, the service life of the connecting assembly can be improved, and the service life of the valve body can be further improved.

[0024] The example embodiment of the present application provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting assembly, and a lever assembly is rotationally connected to the valve body through the connecting assembly; the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece; the first sealing piece is sleeved on the first connecting piece to realize sealing between the first connecting piece and the valve body; the first connecting piece passes through a mounting hole on the valve body from inside a valve cavity, and a second connecting piece is arranged on an end of the first connecting piece extending out of the valve cavity; an insertion slot with an opening facing the center of the valve body is formed on an end of the first connecting piece located inside the valve cavity; the third connecting piece is rotationally connected to the lever assembly and is inserted into the insertion slot at an end thereof. In this way, the first sealing piece, the end of the first connecting piece located inside the valve cavity and the third connecting piece are all not provided with threads, so that a waterproof layer can be easily arranged; the first connecting piece and the third connecting piece are connected through insertion, which facilitates installation and disassembly and does not damage the waterproof layer during installation and disassembly; the first sealing piece can prevent seawater in the valve cavity from penetrating between the first connecting piece and the mounting hole, thereby effectively preventing seawater corrosion of the first connecting piece; thus, the service life of the connecting assembly can be improved, and the service life of the valve body can be further improved. Figures 1 to 4 The example embodiment of the present application provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting assembly, and a lever assembly is rotationally connected to the valve body through the connecting assembly; the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece; the first sealing piece is sleeved on the first connecting piece to realize sealing between the first connecting piece and the valve body; the first connecting piece passes through a mounting hole on the valve body from inside a valve cavity, and a second connecting piece is arranged on an end of the first connecting piece extending out of the valve cavity; an insertion slot with an opening facing the center of the valve body is formed on an end of the first connecting piece located inside the valve cavity; the third connecting piece is rotationally connected to the lever assembly and is inserted into the insertion slot at an end thereof. In this way, the first sealing piece, the end of the first connecting piece located inside the valve cavity and the third connecting piece are all not provided with threads, so that a waterproof layer can be easily arranged; the first connecting piece and the third connecting piece are connected through insertion, which facilitates installation and disassembly and does not damage the waterproof layer during installation and disassembly; the first sealing piece can prevent seawater in the valve cavity from penetrating between the first connecting piece and the mounting hole, thereby effectively preventing seawater corrosion of the first connecting piece; thus, the service life of the connecting assembly can be improved, and the service life of the valve body can be further improved.

[0025] The example embodiment of the present application provides a marine valve body capable of preventing seawater corrosion, which comprises a valve body and a connecting assembly, and a lever assembly is rotationally connected to the valve body through the connecting assembly; the connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece; the first sealing piece is sleeved on the first connecting piece to realize sealing between the first connecting piece and the valve body; the first connecting piece passes through a mounting hole on the valve body from inside a valve cavity, and a second connecting piece is arranged on an end of the first connecting piece extending out of the valve cavity; an insertion slot with an opening facing the center of the valve body is formed on an end of the first connecting piece located inside the valve cavity; the third connecting piece is rotationally connected to the lever assembly and is inserted into the insertion slot at an end thereof. In this way, the first sealing piece, the end of the first connecting piece located inside the valve cavity and the third connecting piece are all not provided with threads, so that a waterproof layer can be easily arranged; the first connecting piece and the third connecting piece are connected through insertion, which facilitates installation and disassembly and does not damage the waterproof layer during installation and disassembly; the first sealing piece can prevent seawater in the valve cavity from penetrating between the first connecting piece and the mounting hole, thereby effectively preventing seawater corrosion of the first connecting piece; thus, the service life of the connecting assembly can be improved, and the service life of the valve body can be further improved. Figure 4As shown, two ends of the lever assembly 400 are symmetrically arranged on the valve body 100 through two groups of connecting assemblies 300. The connecting assembly 300 comprises a first connecting piece 301, a second connecting piece 302, a third connecting piece 303 and a first sealing piece 304. The first sealing piece 304 is sleeved on the first connecting piece 301. Preferably, the first connecting piece 301 comprises a first connecting portion and a second connecting portion connected with each other. The radial dimension of the first connecting portion is greater than that of the second connecting portion. The second connecting portion can be entirely provided with threads or only provided with threads at an end away from the first connecting portion. The first connecting piece 301 penetrates the mounting hole on the valve body 100 from the valve cavity 101. An end of the first connecting piece 301 extending out of the valve cavity 101 is provided with the second connecting piece 302, that is, the first connecting portion is located in the valve cavity 101, the second connecting portion penetrates the mounting hole and extends out of the valve body 100, and is fixed through the second connecting piece 302. The first sealing piece 304 is sleeved on the second connecting portion and located in the valve cavity 101 close to the valve body 100, so as to seal the mounting hole on the valve body 100 and prevent seawater in the valve cavity 101 from entering the mounting hole. An end of the first connecting piece 301 located in the valve cavity 101 is formed with a plug-in groove with an opening facing the center of the valve body 100, that is, the end face of the first connecting portion is formed with the plug-in groove facing the center of the valve body 100. The third connecting piece 303 is rotationally connected with the lever assembly 400 and the end thereof is plugged into the plug-in groove. In this way, the first sealing piece 304, the end of the first connecting piece 301 located in the valve cavity 101 and the third connecting piece 303 are not provided with threads, so as to facilitate the arrangement of a waterproof layer. The first connecting piece 301 and the third connecting piece 303 are connected through plug-in, which is convenient for installation and disassembly and will not damage the waterproof layer at the connecting position during the installation and disassembly process. The seawater corrosion of the first connecting piece 301 is prevented, so as to improve the service life of the connecting assembly 300 and further improve the service life of the valve body.

[0026] The plug-in groove of the first connecting piece 301 can have various forms of arrangement. For example, the cross-sectional shape of the plug-in groove can be circular, square, triangular, hexagonal, etc. The cross-sectional shape and size of the end of the third connecting piece 303 inserted into the plug-in groove are adapted to the cross-sectional shape and size of the plug-in groove. For example, the third connecting portion can comprise a rotationally connecting portion and a plug-in connecting portion connected with each other. The cross-sectional shape of the rotationally connecting portion is circular, and the cross-sectional shape and size of the plug-in connecting portion are adapted to the shape and size of the plug-in groove.

[0027] In order to save processing cost and facilitate installation, the first connecting member 301 is preferably a fastener. For example, the first connecting member 301 is a bolt or screw. When the first connecting member 301 is a screw, preferably an internal hexagonal screw, the internal hexagonal groove at the end thereof can be the insertion slot, which saves the process and cost of processing the insertion slot. Of course, the first connecting member 301 can also be a non-standard part. Different sizes and strengths of the first connecting member 301 can be set according to different working conditions. For example, the radial dimension of the first connecting portion of the first connecting member 301 can be increased to obtain an insertion slot with a larger cross-sectional dimension. In this way, the strength of the third connecting member 303 can be increased to better connect and support the lever assembly 400. At the same time, the second connecting portion of the first connecting member 301 can only be threaded at the end extending out of the valve body 100, and the other parts are not threaded, so as to set a waterproof layer and improve the overall waterproof performance of the first connecting member 301, thereby prolonging the service life of the connecting assembly 300.

[0028] For example, in order to facilitate disassembly and installation, the second connecting member 302 is a nut, and the first sealing member 304 is a gasket.

[0029] In order to increase the stability of the connecting member and improve the corrosion resistance, the connecting assembly 300 further comprises a second sealing member 305; the second sealing member 305 is sleeved on the end of the first connecting member 301 extending out of the valve cavity 101, and is located between the valve body 100 and the second connecting member 302, so as to seal the mounting hole on the valve body 100 and improve the stability of the connecting assembly 300.

[0030] In this application, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that the article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such article or device. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the article or device including the elements.

[0031] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0032] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A marine valve body capable of preventing seawater corrosion, characterized by comprising: The utility model relates to a valve, which comprises a valve body and a connecting assembly, a valve cavity is formed in the valve body, a valve disc assembly is arranged in the valve cavity, a lever assembly is connected to the valve disc assembly, and the lever assembly is rotatably connected to the valve body through the connecting assembly. The connecting assembly comprises a first connecting piece, a second connecting piece, a third connecting piece and a first sealing piece, the first sealing piece is sleeved on the first connecting piece, the first connecting piece passes through a mounting hole on the valve body from the valve cavity, a second connecting piece is arranged on an end of the first connecting piece extending out of the valve cavity, an insertion slot with an opening facing the center of the valve body is formed on an end of the first connecting piece in the valve cavity, and the third connecting piece is rotatably connected to the lever assembly and is inserted into the insertion slot.

2. The marine valve body capable of preventing seawater corrosion according to claim 1, characterized in that, The first connecting piece is a fastener.

3. The marine valve body capable of preventing seawater corrosion according to claim 1, characterized in that, The second connecting piece is a nut.

4. The marine valve body capable of preventing seawater corrosion according to claim 1, wherein The first sealing piece is a gasket.

5. The marine valve body capable of preventing seawater corrosion according to claim 1, wherein The connecting assembly further comprises a second sealing piece, the second sealing piece is sleeved on an end of the first connecting piece extending out of the valve cavity and is located between the valve body and the second connecting piece.

6. The marine valve body capable of preventing seawater corrosion according to claim 1, wherein The valve disc assembly comprises a valve disc body, a third sealing piece and a pressing plate arranged in sequence, and the valve disc body, the third sealing piece and the pressing plate are connected through a fastener.

7. The marine valve body capable of preventing seawater corrosion according to claim 2, wherein The first connecting piece is a bolt.

8. The marine valve body capable of preventing seawater corrosion according to claim 2, wherein The first connecting piece is a screw.

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