Marine half-lining lug butterfly valve

Abstract

The utility model discloses a marine half-lining lug butterfly valve which comprises a valve body, a valve plate and a valve rod, the valve rod is vertically installed on two installation seats on the valve body, a shaft sleeve is arranged on the valve plate, and the valve rod penetrates through the shaft sleeve to be connected with the valve plate. The valve rod is composed of a first supporting rod and a second supporting rod, and a first positioning groove is formed in the bottom of the first supporting rod. The valve rod on the half-lining lug butterfly valve for the ship is arranged to be of a split structure, so that a first supporting rod and a second supporting rod on the valve rod are connected in a positioning and clamping mode, and the valve rod is connected with a plurality of positioning strips in a valve plate shaft sleeve in a clamping mode through a plurality of second positioning grooves, so that the valve rod and a valve plate are connected in a positioning mode. The torque force generated when the valve rod rotates is transmitted to the valve plate in time, then the valve plate is driven to rotate along the interior of the valve port in the valve body, an original integrated structure is replaced, after the valve rod or the valve plate is abraded, the valve rod or the valve plate does not need to be integrally replaced, and waste of resources is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to marine butterfly valve technical field, concretely relates to a marine half-lining lug butterfly valve. BACKGROUND

[0002] Half-lug butterfly valve is generally refers to the pressure hole is the threaded hole, and the pressure hole position is provided with the butterfly valve of solid lug.

[0003] And the existing half-lining lug butterfly (application number for 202222161657.9 a marine half-lug butterfly valve), the stem is integral type structure rod, and usually fixedly connected with the valve plate, the stem is not set into split type structure, so that when the stem or valve plate appears abrasion, the whole needs to be replaced, causes the waste of resources, and the stem and the valve body connection place are not provided with the positioning assembly, so that when the stem drives the valve plate to rotate, cannot reach the set or exceed the opening angle, further influence the use of marine half-lining lug butterfly valve. UTILITY MODEL CONTENTS

[0004] In view of above-mentioned defects or insufficient in prior art, it is expected to provide a marine half-lining lug butterfly valve, for solving the technical problems that the stem of the existing marine half-lining lug butterfly valve is integral type structure rod, and usually fixedly connected with the valve plate, the stem is not set into split type structure, so that when the stem or valve plate appears abrasion, the whole needs to be replaced, causes the waste of resources, and the stem and the valve body connection place are not provided with the positioning assembly, so that when the stem drives the valve plate to rotate, cannot reach the set or exceed the opening angle, further influence the use of marine half-lining lug butterfly valve.

[0005] According to the technical scheme provided in the embodiment of the application, a marine half-lining lug butterfly valve is provided, which comprises a valve body, a valve plate and a valve rod, the valve rod is vertically installed on two mounting seats on the valve body, and the valve plate is provided with a shaft sleeve, the valve rod passes through the shaft sleeve and is connected with the valve plate.

[0006] The valve rod is composed of a first branch rod and a second branch rod, the first branch rod is provided with a first positioning groove at the bottom, and the second branch rod is provided with a corresponding first positioning rod at the top, so that the first positioning rod is connected and installed in the first positioning groove, and the first branch rod and the second branch rod are connected by positioning and clamping.

[0007] The positioning assembly comprises a plurality of positioning rods, the mounting seat is provided with two corresponding positioning screw holes, each positioning rod is screwed into the corresponding positioning screw hole, and the valve rod is provided with a corresponding first positioning sliding groove, each positioning rod is connected and installed in the corresponding first positioning sliding groove, so that the positioning assembly limits and positions the rotation of the valve rod.

[0008] Further, the first supporting rod and the second supporting rod are further provided with a plurality of second positioning grooves, which are arranged in parallel and at intervals along the length direction of the valve rod.

[0009] Further, the shaft sleeve is provided with a plurality of straight strip-shaped positioning strips, and each positioning strip is connected with the second positioning grooves arranged on the valve rod in a clamping manner, so that the valve rod and the shaft sleeve are clamped and connected in a positioning manner.

[0010] Further, the first positioning sliding groove is in an arc-shaped structure.

[0011] Further, the valve body is provided with a valve port, and a sealing ring is arranged in the valve port.

[0012] Further, the mounting seat arranged at the bottom of the valve body is provided with a through groove, and the second supporting rod is arranged in the through groove.

[0013] Further, the through groove is provided with a plugging nut arranged at the bottom of the through groove, which is used for plugging and fixing the bottom of the through groove.

[0014] In summary, the application has the following beneficial effects:

[0015] I. By arranging the valve rod of the marine semi-liner lug butterfly valve in a split structure, the first supporting rod and the second supporting rod of the valve rod are clamped and connected in a positioning manner, and the valve rod is clamped and connected with the valve plate through the second positioning grooves and the positioning strips arranged in the valve plate shaft sleeve in a positioning manner, so that the torque generated by the valve rod during rotation is timely transmitted to the valve plate, thereby driving the valve plate to rotate along the valve port of the valve body, replacing the original integral structure, so that when the valve rod or the valve plate is worn, the whole does not need to be replaced, reducing the waste of resources.

[0016] II. By arranging corresponding positioning assemblies on the two mounting seats of the valve body, the positioning rods of the positioning assemblies are screwed into the corresponding positioning screw holes, and then the positioning rods are clamped in the first positioning sliding grooves arranged on the valve rod, so that when the valve rod is rotated by the hand wheel, the valve rod moves along the positioning rods arranged on the valve body, and the rotation of the valve plate connected with the valve rod does not exceed the limit, thereby improving the practicability and accuracy of the marine semi-liner lug butterfly valve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2The utility model discloses a section structure schematic diagram.

[0020] Figure 3 The utility model discloses a valve rod decomposition structure schematic diagram.

[0021] Marked number in drawing: valve body -100, mounting seat -110, valve plate -200, axle sleeve -210, positioning strip -220, valve rod -300, first support rod -310, first positioning groove -311, first positioning sliding slot -312, second positioning groove -313, second support rod -320, first positioning rod -321, positioning assembly 400, positioning rod -410. DETAILED DESCRIPTION

[0022] The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not limit the utility model. In addition, it should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0024] The utility model provides a marine half-liner lug butterfly valve, including valve body 100, valve plate 200 and valve rod 300, valve rod 300 is vertically installed on two mounting seat 110 on valve body 100, and the shaft sleeve 210 is arranged on valve plate 200, and valve rod 300 passes through the shaft sleeve 210 and is connected with valve plate 200, so that valve plate 200 is clamped and is installed in the valve port on valve body 100, so that rotating valve rod 300 drives valve plate 200 to rotate in the valve port, and then opens and closes butterfly valve, the valve rod 300 is by first branch 310 and second branch 320, and first branch 310 bottom is provided with first positioning groove 311, and second branch 320 top is provided with corresponding first positioning rod 321, so that first positioning rod 321 is clamped and is installed in first positioning groove 311, and first positioning rod 321 is provided with a plurality of groove bodies, and first positioning groove 311 is provided with corresponding a plurality of clamping strips, so that each clamping strip is positioned and clamped in the corresponding groove body, and then first branch 310 and second branch 320 are positioned and clamped and connected, so that the split structure valve rod 300 does not affect the transmission of torque force after being connected, positioning assembly 400 includes a plurality of positioning rods 410, and the mounting seat 110 is provided with corresponding two positioning screw holes, each positioning rod 410 is screwed into the corresponding positioning screw hole, and the valve rod 300 is provided with corresponding first positioning sliding groove 312, and the first positioning sliding groove 312 is in the form of an arc structure, so that each positioning rod 410 is deeply inserted into the first positioning sliding groove 312 and clamped in the corresponding first positioning sliding groove 312, so that when the valve rod 300 rotates, the first sliding groove on the valve rod 300 rotates along the positioning rod 410, so that the positioning assembly 400 limits the rotation of the valve rod 300, so that the rotation of the valve plate 200 connected to the valve rod 300 does not exceed the limit, thereby improving the practicality and accuracy of the marine half-liner lug butterfly valve.

[0025] As a preferred embodiment, please refer to Figure 2 and Figure 3 , the first branch 310 and the second branch 320 are in the form of a straight bar structure, and a plurality of second positioning grooves are arranged at the connection between the first branch 310 and the second branch 320, the plurality of positioning grooves are arranged in parallel and at intervals along the length direction of the valve rod 300, a plurality of positioning strips 220 in the form of a straight bar are arranged in the shaft sleeve 210, and each positioning strip 220 is clamped and connected with the plurality of second positioning grooves arranged on the valve rod 300, so that the valve rod 300 is clamped and connected with the shaft sleeve 210, and the valve rod 300 is clamped and connected with the valve plate 200, thereby the torque force on the valve rod 300 is transmitted to the valve plate 200 in time, driving the valve plate 200 to rotate along the valve port on the valve body 100, thereby improving the accuracy of the marine half-liner lug butterfly valve.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2The valve body 100 is provided with a valve port, and a sealing ring is arranged in the valve port, wherein the sealing ring is made of rubber, so that the sealing ring elastically seals the joint between the valve plate 200 and the valve body 100, and the sealing performance of the marine semi-liner lug butterfly valve is improved.

[0027] As a preferred embodiment, refer to Figure 1 and Figure 2 The mounting seat 110 arranged at the bottom of the valve body 100 is provided with a through groove, the second supporting rod 320 is arranged in the through groove, and a blocking nut is arranged at the bottom of the through groove, so as to block the bottom of the through groove and fix the bottom of the second supporting rod 320, so that the second supporting rod 320 is fixed in the mounting seat 110.

[0028] The working principle of the marine semi-liner lug butterfly valve is as follows:

[0029] When the marine semi-liner lug butterfly valve is used on the pipeline of the ship, the valve rod 300 of the traditional marine semi-liner lug butterfly valve is of an integral structure, and when the valve plate 200 and the valve rod 300 are worn or damaged, the valve rod 300 needs to be replaced as a whole, thereby causing waste of resources. In order to reduce the waste of resources, the valve rod 300 of the marine semi-liner lug butterfly valve is arranged in a split structure, so that the first supporting rod 310 and the second supporting rod 320 of the valve rod 300 are connected through the first positioning rod 321 and the first positioning groove 311, and a plurality of second positioning grooves are arranged on the valve rod 300, so that the plurality of second positioning grooves and the plurality of positioning strips 220 in the shaft sleeve 210 of the valve plate 200 are connected through clamping, so that the valve rod 300 and the valve plate 200 are connected through positioning, thereby the torque generated when the valve rod 300 rotates is timely transmitted to the valve plate 200, thereby driving the valve plate 200 to rotate along the inside of the valve port of the valve body 100, so that the marine semi-liner lug butterfly valve is used for opening and closing the pipeline of the ship, and the corresponding positioning assembly 400 is arranged on the two mounting seats 110 of the valve body 100, so that each positioning rod 410 of the positioning assembly 400 is screwed into the corresponding positioning screw hole, thereby each positioning screw rod is deeply clamped in the first positioning sliding groove 312 on the valve rod 300, so that when the valve rod 300 is rotated through the hand wheel, the valve rod 300 moves along the positioning rod 410 on the valve body 100, so that the valve plate 200 connected with the valve rod 300 does not rotate more than the limit, thereby improving the practicability and accuracy of the marine semi-liner lug butterfly valve.

[0030] The above description is only the preferred embodiment of the application and the scheme of the applied technical principles. Meanwhile, the utility model range involved in the application is not limited to the technical scheme formed by the specific combination of the above technical features, and should also cover other technical schemes formed by the combination of the above technical features or equivalent features without departing from the utility model concept. For example, the technical scheme formed by replacing the above features with the technical features disclosed in the application (but not limited to) having similar functions.

Claims

1. A marine semi-liner lug butterfly valve, comprising a valve body (100), a valve plate (200) and a valve rod (300), the valve rod (300) is vertically installed on two mounting seats (110) on the valve body (100), and the valve plate (200) is provided with a shaft sleeve (210), the valve rod (300) passes through the shaft sleeve (210) and is connected with the valve plate (200), characterized in that: the valve rod (300) is composed of a first branch rod (310) and a second branch rod (320), the first branch rod (310) is provided with a first positioning groove (311) at the bottom, and the second branch rod (320) is provided with a corresponding first positioning rod (321) at the top, so that the first positioning rod (321) is clamped and installed in the first positioning groove (311), and the first branch rod (310) and the second branch rod (320) are clamped and connected; a positioning assembly (400) comprising a plurality of positioning rods (410), the mounting seat (110) is provided with two corresponding positioning screw holes, each positioning rod (410) is screwed into the corresponding positioning screw hole, and the valve rod (300) is provided with a corresponding first positioning sliding groove (312), each positioning rod (410) is clamped in the corresponding first positioning sliding groove (312), so that the positioning assembly (400) limits and positions the rotation of the valve rod (300). The first branch rod (310) and the second branch rod (320) are further provided with a plurality of second positioning grooves (313), and a plurality of second positioning grooves (313) are arranged in parallel and at intervals along the length direction of the valve rod (300). The shaft sleeve (210) is provided with a plurality of positioning strips (220) in straight bar shape, and each positioning strip (220) is clamped and connected with a plurality of second positioning grooves (313) arranged on the valve rod (300), so that the valve rod (300) and the shaft sleeve (210) are clamped and connected.

2. A semi-liner lugged butterfly valve for marine use according to claim 1, characterized in that: The first positioning sliding groove (312) is in arc structure.

3. A semi-liner lugged butterfly valve for marine use according to claim 1, characterized in that: The valve body (100) is provided with a valve port, and a sealing ring is installed in the valve port.

4. A semi-liner lugged butterfly valve for marine use according to claim 1, characterized in that: The mounting seat (110) provided at the bottom of the valve body (100) is provided with a through groove, and the bottom of the second branch rod (320) is installed in the through groove.

5. A semi-liner lugged butterfly valve for marine use according to claim 1, characterized in that: ​ 6. A semi-liner lugged butterfly valve for marine use according to claim 1, characterized in that: ​

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