CN216812999U - Adjustable ship suction check valve - Google Patents

Abstract

The utility model discloses an adjustable ship suction check valve, which relates to the technical field of ships and comprises an upper valve body, a lower valve body and a valve seat, wherein a support frame is fixedly arranged at the lower end of the upper valve body, the support frame is provided with a first support plate, the first support plate is provided with a stable groove, the first support plate is provided with a nylon guide hole, the nylon guide hole penetrates through a valve core column, a second support plate is fixedly arranged at the upper end of the valve core column, a compression spring is fixedly arranged on the lower surface of the second support plate, a spring pad is fixedly arranged on the compression spring, the valve core column penetrates through the compression spring and the spring pad, the first support plate is provided with a first through hole, the second support plate is provided with a second through hole, a sliding column penetrates through the first through hole and the second through hole, a valve core is arranged at the lower end of the valve core column, and the valve seat is provided with a sealing pad. The valve core closing device is simple in structure, convenient to cast and produce, convenient to install, good in sealing performance, adjustable in force required by valve core closing, strong in practicability and suitable for popularization.

Description

Adjustable ship suction check valve

Technical Field

The utility model belongs to the technical field of ships, and particularly relates to an adjustable ship suction check valve.

Background

The suction check valve is a valve that can automatically prevent the reverse flow of fluid. The flap of the check valve opens under the influence of fluid pressure, which flows from the inlet side to the outlet side. When the pressure of the inlet side is lower than that of the outlet side, the valve clack is automatically closed under the action of factors such as fluid pressure difference, gravity and the like to prevent fluid backflow, the valve clack is mainly used for preventing medium backflow, and is an automatic valve which is opened and closed by medium pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable ship suction check valve which is simple in structure, convenient to cast and produce, convenient to install, good in sealing performance, adjustable in force required by closing a valve core, strong in practicability and suitable for popularization.

The utility model provides the following technical scheme: the utility model provides a boats and ships suction check valve with adjustable, includes valve body, lower valve body, disk seat, it is fixed to be equipped with the support frame to go up the valve body lower extreme, the fixed first backup pad that is equipped with of support frame center point department, first backup pad upper surface is equipped with the stable groove, first backup pad is located the stable inslot and runs through and is equipped with the nylon guiding hole, the nylon guiding hole runs through and is equipped with the valve core post, the fixed second backup pad that is equipped with in valve core post upper end, valve core post lower extreme can be dismantled through the valve core fixture block and be equipped with the case, the valve body can be dismantled through the screw thread with the disk seat down and be connected, the disk seat can be dismantled through the fixed slot and be equipped with sealed the pad.

Preferably, the fixed surface is equipped with compression spring under the second backup pad, compression spring other end is fixed to be equipped with the spring pad that is located the stable trough, the case post runs through compression spring and spring pad, first backup pad runs through around the stable trough and is equipped with first through-hole, the second backup pad corresponds first through-hole and is equipped with the second through-hole that runs through, first through-hole runs through with the second through-hole and is equipped with the slip post, be equipped with the screw thread on the slip post, the slip post is located first backup pad below and has adjusting nut through threaded connection.

Preferably, the upper valve body and the lower valve body are fixedly provided with connecting flanges which are matched with each other, the lower end of the upper valve body is provided with a sealing groove, and the upper surface of the lower valve body is fixedly provided with a sealing ring corresponding to the sealing groove.

Preferably, go up the valve body and be sand casting spare, the lower surface and the support frame of going up the valve body are located the coplanar, the inner wall of going up the valve body and valve body down is smooth straight face.

Preferably, the valve core and the sealing gasket are rubber gaskets.

The utility model has the beneficial effects that: simple structure, the casting production of being convenient for, the installation of being convenient for, the leakproofness is good, and closes required power adjustable to the case, and the practicality is strong, specifically as follows:

(1) the utility model is provided with the sliding column, the stress of the valve core is adjusted through the sliding column, the height between the first supporting plate and the second supporting plate is adjusted through adjusting the adjusting nut during installation, the supporting force of the compression spring to the second supporting plate is different, the force required by closing the valve core is adjusted, and then the suction check valve is adjusted.

(2) The utility model carries on the casting through the sand casting, the structure of the casting is simple, the inner walls of the upper valve body and the lower valve body are smooth and straight, in the casting process, the core which needs to be shaped is convenient to manufacture, the core of the upper valve body is inserted from the upper part of the upper valve body, the shape of the supporting frame, the first supporting plate, the stabilizing groove and the nylon guiding hole are arranged at the top end, after the casting is finished, the core is drawn out, the lower valve body is cast in the same way, thereby the production of the valve body is convenient, after the production is finished, the sealing gasket which is produced in advance is clamped in through the fixing groove, the lower valve body is fixed, the valve core column is inserted into the nylon guiding hole, the sliding column is inserted into the first through hole and the second through hole, the adjusting nut is connected on the sliding column for adjustment, the valve core is fixed on the valve core column through the valve core clamping block, the upper valve body and the lower valve body are fixed through the connecting flange, and the sealing ring enters the sealing groove to seal the valve body, so that the installation is completed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of the internal structure of the upper valve body of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the utility model at A;

labeled as: the valve comprises an upper valve body 1, a lower valve body 2, a connecting flange 3, a sealing ring 4, a valve core 5, a supporting frame 6, a first supporting plate 7, a second supporting plate 8, a valve core column 9, a compression spring 10, a sliding column 11, an adjusting nut 12, a sealing groove 13, a valve seat 14, a sealing gasket 15, a fixing groove 16, a valve core clamping block 17, a stabilizing groove 18, a nylon guide hole 19, a spring gasket 20, a first through hole 21 and a second through hole 22.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-3, an adjustable check valve for ship intake comprises an upper valve body 1, a lower valve body 2, a valve seat 14, a support frame 6 is fixedly arranged at the lower end of the upper valve body 1, a first support plate 7 is fixedly arranged at the central point of the support frame 6, a stabilizing groove 18 is arranged on the upper surface of the first support plate 7, the compression spring 10 is kept stable by a stabilizing groove 18, the first supporting plate 7 is provided with a nylon guide hole 19 in the stabilizing groove 18, the nylon guide hole 19 penetrates through the valve stem 9, the upper end of the valve stem 9 is fixedly provided with a second support plate 8, the lower end of the valve stem 9 is detachably provided with a valve core 5 through a valve core fixture block 17, the lower valve body 2 is detachably connected with the valve seat 14 through a thread, the valve seat 14 is detachably provided with a sealing gasket 15 through a fixing groove 16, the valve core 5 and the sealing gasket 15 are rubber gaskets, and the valve body is closed through the valve core 5 and the sealing gasket 15.

Referring to fig. 2-4, the fixed surface is equipped with compression spring 10 under the second backup pad 8, the fixed spring pad 20 that is located the stable trough 18 that is equipped with of compression spring 10 other end, valve stem 9 runs through compression spring 10 and spring pad 20, first backup pad 7 runs through around stable trough 18 and is equipped with first through-hole 21, second backup pad 8 corresponds first through-hole 21 and is equipped with the second through-hole 22 that runs through, first through-hole 21 runs through with second through-hole 22 and is equipped with slip post 11, be equipped with the screw thread on the slip post 11, slip post 11 is located first backup pad 7 below and has adjusting nut 12 through threaded connection, adjusts the height of slip post 11 through adjusting nut 12.

Referring to fig. 1 and 3, the upper valve body 1 and the lower valve body 2 are fixedly provided with connecting flanges 3 which are matched with each other, the lower end of the upper valve body 1 is provided with a sealing groove 13, the upper surface of the lower valve body 2 is fixedly provided with a sealing ring 4 corresponding to the sealing groove 13, and the valve body 1 is sealed through the sealing groove 13 and the sealing ring 4.

Referring to fig. 3, the upper valve body 1 is a sand casting, the lower surface of the upper valve body 1 and the support frame 6 are located on the same plane, and the inner walls of the upper valve body 1 and the lower valve body 2 are smooth straight surfaces, so that casting is facilitated.

The adjustable ship suction check valve is simple in structure, convenient to cast and produce, convenient to install, good in sealing performance, adjustable in force required by closing the valve core, high in practicability and suitable for popularization.

Specifically, referring to fig. 1-4, in the casting process, the core to be shaped is conveniently manufactured, the core of the upper valve body 1 is inserted from the upper part of the upper valve body 1, the top end of the core is provided with the shapes of the support frame 6, the first support plate 7, the stabilizing groove 18 and the nylon guide hole 19, after the casting is finished, the core is drawn out, the lower valve body 2 is cast in the same way, after the production is finished, the sealing gasket 15 produced in advance is clamped in through the fixing groove 16 and fixed on the lower valve body 2, the valve core column 9 is inserted into the nylon guide hole 19, the sliding column 11 is inserted into the first through hole 21 and the second through hole 22, the adjusting nut 12 is connected to the sliding column 11 and is adjusted, the adjusting nut 12 is adjusted during the installation, so that the height between the first support plate 7 and the second support plate 8 is adjusted, and the supporting force of the compression spring 10 on the second support plate 8 is different, the valve core 5 is fixed on the valve core column 9 through the valve core clamping block 17, the upper valve body 1 and the lower valve body 2 are fixed through the connecting flange 3, and the sealing ring 4 enters the sealing groove 13 to seal the valve body.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An adjustable ship suction check valve comprises an upper valve body (1), a lower valve body (2) and a valve seat (14), it is characterized in that the lower end of the upper valve body (1) is fixedly provided with a support frame (6), a first supporting plate (7) is fixedly arranged at the central point of the supporting frame (6), a stabilizing groove (18) is arranged on the upper surface of the first supporting plate (7), a nylon guide hole (19) is arranged in the first supporting plate (7) in the stabilizing groove (18) in a penetrating way, the nylon guide hole (19) penetrates through the valve stem (9), the upper end of the valve stem (9) is fixedly provided with a second support plate (8), the lower end of the valve stem (9) is detachably provided with a valve core (5) through a valve core clamping block (17), the lower valve body (2) is detachably connected with the valve seat (14) through threads, and the valve seat (14) is detachably provided with a sealing gasket (15) through a fixing groove (16).

2. The adjustable ship suction check valve as claimed in claim 1, wherein a compression spring (10) is fixedly arranged on the lower surface of the second support plate (8), a spring pad (20) located in the stabilizing groove (18) is fixedly arranged at the other end of the compression spring (10), the valve stem (9) penetrates through the compression spring (10) and the spring pad (20), the first support plate (7) penetrates through the stabilizing groove (18) and is provided with a first through hole (21), the second support plate (8) is provided with a second through hole (22) corresponding to the first through hole (21), the first through hole (21) and the second through hole (22) penetrate and are provided with a sliding column (11), threads are arranged on the sliding column (11), and the sliding column (11) is located below the first support plate (7) and is connected with an adjusting nut (12) through threads.

3. The adjustable ship suction check valve as claimed in claim 1, wherein the upper valve body (1) and the lower valve body (2) are fixedly provided with connecting flanges (3) which are matched with each other, the lower end of the upper valve body (1) is provided with a sealing groove (13), and the upper surface of the lower valve body (2) is fixedly provided with a sealing ring (4) corresponding to the sealing groove (13).

4. The adjustable ship suction check valve as claimed in claim 1, wherein the upper valve body (1) is a sand casting, the lower surface of the upper valve body (1) and the support frame (6) are located on the same plane, and the inner walls of the upper valve body (1) and the lower valve body (2) are smooth straight surfaces.

5. The adjustable check valve for intake of ship according to claim 1, wherein the valve core (5) and the sealing pad (15) are rubber pads.

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