Marine diesel engine butterfly valve

Abstract

The utility model discloses a butterfly valve for a marine diesel engine. A valve body; the shell is arranged on the outer surface of the valve body; the sliding plate is mounted in the shell in a sliding manner; the number of the through holes is one pair, and the through holes are formed in the side wall of the valve body and communicate with the shell; one end of each limiting rod is fixedly connected with one end face of the sliding plate, and the other end of each limiting rod penetrates through the corresponding pair of through holes; the elastic piece is arranged in the shell, one end of the elastic piece is connected with one side wall surface of the shell, and the other end of the elastic piece is connected with one end surface of the sliding plate; under the action of the elastic piece, an acting force can be applied to the sliding plate, so that the sliding plate drives the pair of limiting rods to clamp and fix the butterfly plate, the valve body is prevented from loosening and internal liquid is prevented from leaking due to the fact that external personnel touch the switch hand wheel by mistake, and convenience is brought to people.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve for marine diesel engines. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for switching control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

[0003] However, the ordinary butterfly valve switch handwheel is always in a free state, without any locking design, which makes the butterfly valve switch handwheel prone to misoperation and produces a series of adverse consequences. The traditional butterfly valve locking structure is often installed on the handwheel, which requires cumbersome operations to lock the handwheel. Therefore, there is an urgent need for a marine diesel engine butterfly valve that can solve the above problems. Utility Model Content

[0004] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a marine diesel engine butterfly valve, comprising:

[0005] Valve body;

[0006] A housing, disposed on the outer surface of the valve body;

[0007] A sliding plate, slidably mounted in the housing;

[0008] A pair of through holes, both formed in the side wall of the valve body and both communicated with the shell;

[0009] A pair of limit rods, one end of each of which is fixedly connected to one end surface of the sliding plate, and the other end of each of which passes through the pair of through holes;

[0010] An elastic member is disposed in the housing, and one end of the elastic member is connected to a side wall of the housing, and the other end of the elastic member is connected to an end surface of the sliding plate;

[0011] The driving assembly is arranged on the outer wall surface of the shell and is used for driving the sliding plate to move.

[0012] Preferably, the driving assembly comprises:

[0013] A fixing block, fixedly mounted on the outer wall surface of the shell;

[0014] A connecting rod, which is slidably connected to the fixed block, one end of which passes through the side wall of the shell and is connected to an end surface of the sliding plate, and the other end of which is provided with a pull ring;

[0015] A clamping groove is formed on one end surface of the fixing block;

[0016] The clamping block is fixedly mounted on the outer surface of the connecting rod and is clamped with the clamping groove.

[0017] Preferably, a sliding block is fixedly mounted on the outer surface of the sliding plate, and a sliding groove used in cooperation with the sliding block is formed on the inner wall surface of the shell.

[0018] Preferably, an annular groove is formed on the inner wall surface of the through hole, a sealing ring is arranged in the annular groove, and the inner surface of the sealing ring contacts the outer surface of the limiting rod.

[0019] Preferably, the elastic member is a compression spring.

[0020] The beneficial technical effect of the utility model is that under the action of the elastic member, a force can be applied to the sliding plate, so that the sliding plate drives a pair of limit rods to clamp the butterfly plate to fix it, thereby preventing outsiders from accidentally touching the switch hand wheel to cause the valve body to loosen and cause internal liquid to leak;

[0021] At the same time, under the action of the driving assembly, it is convenient for the staff to drive the sliding plate to move, so that it can drive a pair of limit rods to move at the same time, bringing convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the front cross-sectional structure of the utility model is shown.

[0023] Figure 2 The utility model is shown Figure 1 Schematic diagram of the enlarged structure of part A.

[0024] Figure 3 A side structural schematic diagram of the fixing block of the utility model is shown.

[0025] Figure numerals 1, valve body, 2, shell, 3, sliding plate, 4, through hole, 5, limit rod, 6, elastic member, 7, fixing block, 8, connecting rod, 9, snap-in groove, 10, snap-in block, 11, slider, 12, slide groove, 13, annular groove, 14, sealing ring. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0027] The utility model provides a marine diesel engine butterfly valve, comprising:

[0028] Valve body 1;

[0029] A housing 2 is provided on the outer surface of the valve body 1;

[0030] The housing 2 is fixedly mounted on the outer surface of the valve body 1 and can be fixed relatively thereto;

[0031] A sliding plate 3 is slidably mounted in the housing 2;

[0032] A pair of through holes 4 are formed in the side wall of the valve body 1 and are communicated with the housing 2;

[0033] A pair of limit rods 5, one end of each of which is fixedly connected to one end surface of the sliding plate 3, and the other end of each of which passes through a pair of through holes 4;

[0034] The sliding plate 3 slides in the housing 2 to drive a pair of limit rods 5 to slide in a pair of through holes 4 respectively, so that the pair of limit rods 5 clamp the butterfly plate in the valve body 1 to fix it;

[0035] The elastic member 6 is disposed in the housing 2, and one end of the elastic member 6 is connected to a side wall of the housing 2, and the other end of the elastic member 6 is connected to an end surface of the sliding plate 3;

[0036] One end of the elastic member 6 is fixedly connected to one side wall of the housing 2, and the other end is fixedly connected to one end surface of the sliding plate 3, so as to exert a force on the sliding plate 3 to make it always approach one side of the valve body 1;

[0037] The driving assembly is arranged on the outer wall surface of the shell 2 and is used for driving the sliding plate 3 to move.

[0038] Specifically, the drive components include;

[0039] A fixing block 7, fixedly mounted on the outer wall of the housing 2;

[0040] A connecting rod 8 is slidably connected to the fixed block 7, one end of which passes through the side wall of the housing 2 and is connected to one end surface of the sliding plate 3, and the other end is provided with a pull ring;

[0041] One end of the connecting rod 8 is rotatably connected to one end surface of the sliding plate 3, and the other end is fixedly connected to the pull ring. When the staff pulls the pull ring, the connecting rod 8 can be driven to move, and the sliding plate 3 can drive a pair of limit rods 5 to move simultaneously;

[0042] A clamping groove 9 is formed on one end surface of the fixing block 7;

[0043] The clamping block 10 is fixedly mounted on the outer surface of the connecting rod 8 and is clamped with the clamping groove 9;

[0044] When the staff pulls the pull ring, the connecting rod 8 and the clamping block 10 can be driven to move at the same time, so that the clamping block 10 slides out of the clamping groove 9. At the same time, the staff rotates the pull ring to make the connecting rod 8 drive the clamping block 10 to rotate 90 degrees at the same time, so that one end face of the clamping block 10 contacts the outer surface of the fixed block 7, thereby limiting the position of the connecting rod 8.

[0045] Specifically, a slider 11 is fixedly mounted on the outer surface of the sliding plate 3, and a slide groove 12 used in conjunction with the slider 11 is formed on the inner wall surface of the housing 2;

[0046] The sliding block 11 slides in the sliding groove 12 , so that the sliding plate 3 can slide more stably in the housing 2 .

[0047] Specifically, an annular groove 13 is formed on the inner wall surface of the through hole 4, and a sealing ring 14 is arranged in the annular groove 13, and the inner surface of the sealing ring 14 contacts the outer surface of the limiting rod 5;

[0048] Under the action of the annular groove 13 and the sealing ring 14, the gap between the inner wall surface of the through hole 4 and the outer surface of the limiting rod 5 can be sealed to prevent leakage.

[0049] Specifically, the elastic member 6 is a compression spring.

[0050] Working principle: first, the staff pulls the pull ring, which can drive the connecting rod 8, the clamping block 10 and the sliding plate 3 to move at the same time, so that a pair of limit rods 5 can slide into a pair of through holes 4 respectively, so that a pair of limit rods 5 are separated from the butterfly plate in the valve body 1. At the same time, the staff rotates the pull ring to make the connecting rod 8 drive the clamping block 10 to rotate 90 degrees at the same time, so that one end face of the clamping block 10 contacts the outer surface of the fixed block 7, and the position of the connecting rod 8 is limited, which is convenient for the staff to control the valve body 1 to rotate the butterfly plate and open the valve body 1. When closing, the staff controls the valve body 1 to rotate the butterfly plate and seal the valve body 1. At this time, the staff rotates the pull ring to make the connecting rod 8 drive the clamping block 10 to rotate. At this time, under the action of the elastic member 6, the sliding plate 3 and the pair of limit rods 5 can be driven to move, so that a pair of limit rods 5 clamp the butterfly plate, and at the same time, the clamping block 10 can be clamped into the clamping groove 9 to complete the locking of the butterfly plate, which brings convenience to people.

[0051] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0052] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0054] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0055] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A marine diesel engine butterfly valve, characterized in that: include; Valve body (1); A housing (2) is provided on the outer surface of the valve body (1); A sliding plate (3) slidably mounted in the housing (2); A pair of through holes (4) are formed in the side wall of the valve body (1) and are in communication with the housing (2); A pair of limiting rods (5), one end of each of which is fixedly connected to one end surface of the sliding plate (3), and the other end of each of which passes through a pair of through holes (4); An elastic member (6) is disposed in the housing (2), one end of which is connected to a side wall of the housing (2), and the other end of which is connected to an end surface of the sliding plate (3); A driving component is arranged on the outer wall surface of the shell (2) and is used to drive the sliding plate (3) to move.

2. A marine diesel engine butterfly valve according to claim 1, characterized in that: The driving assembly comprises: A fixing block (7) fixedly mounted on the outer wall surface of the housing (2); A connecting rod (8) is slidably connected to the fixed block (7), one end of which passes through the side wall of the housing (2) and is connected to an end surface of the sliding plate (3), and the other end of which is provided with a pull ring; A clamping groove (9) is formed on an end surface of the fixing block (7); The clamping block (10) is fixedly mounted on the outer surface of the connecting rod (8) and is clamped with the clamping groove (9).

3. A marine diesel engine butterfly valve according to claim 1, characterized in that: A sliding block (11) is fixedly mounted on the outer surface of the sliding plate (3), and a sliding groove (12) for use with the sliding block (11) is formed on the inner wall surface of the housing (2).

4. A marine diesel engine butterfly valve according to claim 1, characterized in that: An annular groove (13) is formed on the inner wall surface of the through hole (4), a sealing ring (14) is arranged in the annular groove (13), and the inner surface of the sealing ring (14) contacts the outer surface of the limiting rod (5).

5. A marine diesel engine butterfly valve according to claim 1, characterized in that: The elastic member (6) is a compression spring.

Images