Check valve with valve rod capable of being adjusted in multiple directions

Abstract

The utility model discloses a check valve with a valve rod capable of being adjusted in multiple directions, and relates to the field of check valves with valve rods capable of being adjusted in multiple directions. The check valve with the valve rod capable of being adjusted in the multiple directions comprises a valve body, an installation base, a valve clack, a limiting unit and an adjusting unit, the limiting unit is installed on the installation base, and the adjusting unit is arranged below the limiting unit. According to the valve rod multi-direction adjusting check valve, when the water pressure in the valve body is too large, under the pressure of the valve body, the pressure seat and the valve clack are pushed to move, under the movement of the pressure seat, the pressure seat compresses the spring, and when the pressure of the spring is balanced with the water pressure, under the action of the pressure seat, the movement distance of the pressure seat is limited; and the threaded rod is rotated to move along the adjusting base, the position of the extrusion base is adjusted, the spring is compressed, and then the pressure range of drainage is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stem multi-directional regulating check valves, in particular to a valve stem multi-directional regulating check valve. Background Art

[0002] A check valve is a valve that can automatically prevent the backflow of media in a pipeline. Its working principle is to use the automatic opening and closing function of the valve disc to prevent the backflow of fluid.

[0003] When the medium flows normally, the valve disc will automatically open under the action of fluid pressure, allowing the medium to pass smoothly. When the medium pressure or flow rate decreases to a certain value, the valve disc will automatically close to prevent the medium from flowing back. It only limits the flow pressure by adjusting the degree of compression of the spring in the valve body. It has a certain limited range and cannot directly close the valve body. At the same time, it controls the maximum flow rate of the valve body, resulting in the check valve being unable to meet the use requirements of pipelines with requirements on flow rate and closure. Therefore, we propose a multi-directional adjustable check valve with a valve stem. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a multi-directional adjustable check valve with a valve stem, which solves the problem of limiting the flow pressure by merely adjusting the degree of compression of the spring in the valve body, which has a certain limited range and cannot directly close the valve body while controlling the maximum flow rate of the valve body, resulting in the check valve being unable to meet the use requirements in pipelines with requirements on flow rate and closure.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a valve stem multi-directional adjustable check valve, comprising a valve body, a mounting seat, a valve disc, a limiting unit and an adjusting unit, wherein the mounting seat is mounted on the valve body by bolts, the valve disc is fitted on the valve seat in the valve body, the limiting unit is mounted on the mounting seat, and the adjusting unit is arranged below the limiting unit.

[0006] The limiting unit includes a connecting seat, the connecting seat is installed in the mounting seat, an adjusting seat is threadedly connected to the inner wall of the connecting seat, and a limiting seat is provided on the outer wall of the adjusting seat;

[0007] The adjustment unit includes a threaded rod, which is threadedly connected to the inner wall of the adjustment seat. The bottom end surface of the threaded rod is fixedly connected to an extrusion seat, and the extrusion seat is located above the valve disc.

[0008] Preferably, the bottom end surface of the adjustment seat is fixedly connected to a fixed seat, and the top end surface of the adjustment seat is fixedly connected to a rotating seat.

[0009] Preferably, a limiting seat is fixedly connected to the bottom end surface of the fixing seat, and the limiting seat is located above the valve disc.

[0010] Preferably, the inner wall of the valve disc is fixedly connected with a pressure seat, and the pressure seat is inserted into the valve seat of the valve body.

[0011] Preferably, the top end surface of the pressure seat is fixedly connected with a spring.

[0012] Preferably, the other end of the spring is fixedly connected to the bottom end surface of the extrusion seat.

[0013] Preferably, the bottom end surface of the valve disc is provided with a sealing gasket.

[0014] The utility model discloses a valve stem multidirectional regulation check valve, it has the beneficial effect as follows:

[0015] The valve stem multidirectional regulation check valve, when the water pressure in the valve body is too large, under the pressure of the valve body, the pressure seat and the valve disc are pushed to move, under the movement of the pressure seat, the pressure seat compresses the spring, when the pressure of the spring is balanced with the water pressure, under the action of the pressure seat, the movement distance of the pressure seat is limited, convenient drainage according to pressure, by rotating the threaded rod and moving along the adjusting seat, the position of the extrusion seat is adjusted, the spring is compressed, and the pressure range of drainage is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0017] Fig. 1 It is the structural schematic diagram of the utility model;

[0018] Fig. 2 It is the internal structure schematic diagram of the valve body of the utility model;

[0019] Fig. 3 It is the connection schematic diagram of the limiting unit and the adjusting unit of the utility model.

[0020] In the drawing: 1, valve body;2, mounting seat;3, valve disc;4, limiting unit;401, connecting seat;402, adjusting seat;403, rotating seat;404, fixed seat;405, limiting seat;5, adjusting unit;501, threaded rod;502, extrusion seat;503, spring;504, pressure seat. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] The valve rod multidirectional adjusting check valve provided by the embodiments of the application solves the problem that the check valve cannot meet the use requirement in the pipeline which requires flow rate and closure by only adjusting the compression degree of the spring 503 in the valve body 1 to limit the flow-through pressure, the flow-through pressure has a certain limited range, the valve body 1 cannot be directly closed, and the maximum flow rate of the valve body 1 is controlled, so that when the water pressure in the valve body 1 is too large, the pressure seat 504 and the valve disc 3 are moved under the pressure of the valve body 1, the movement of the pressure seat 504 causes the pressure seat 504 to compress the spring 503, when the pressure of the spring 503 is balanced with the water pressure, the movement distance of the pressure seat 504 is limited under the action of the pressure seat 504, the drainage is facilitated according to the pressure, the position of the extrusion seat 502 is adjusted by rotating the threaded rod 501 to move along the adjusting seat 402, the spring 503 is compressed, and then the pressure range of the drainage is adjusted.

[0023] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0024] The embodiments of the utility model disclose a valve rod multidirectional adjusting check valve.

[0025] According to the drawings Figs. 1-3 As shown, including valve body 1, mounting seat 2, valve disc 3, limit unit 4 and adjusting unit 5, mounting seat 2 is installed on valve body 1 by bolt, water inlet and drain are respectively arranged on both sides of valve body 1, and are respectively connected with two pipelines, valve disc 3 is attached on the valve seat in valve body 1, limit unit 4 is installed on mounting seat 2, adjusting unit 5 is arranged below limit unit 4,

[0026] The limiting unit 4 comprises a connecting seat 401 installed in the mounting seat 2, an adjusting seat 402 threadedly connected to the inner wall of the connecting seat 401, and a limiting seat 405 arranged on the outer wall of the adjusting seat 402. The adjusting seat 402 is moved along the inner wall of the connecting seat 401 by rotating the adjusting seat 402, so that the adjusting seat 402 drives the fixing seat 404 and the limiting seat 405 to move. The position of the valve disc 3 is limited by the limiting seat 405. When the valve disc 3 contacts the limiting seat 405, the movement position of the valve disc 3 is limited, and the liquid discharge amount is limited. When the adjusting limiting seat 405 is attached to the valve disc 3, the valve disc 3 is limited, and the valve body 1 is sealed, thereby effectively ensuring the sealing effect.

[0027] The adjusting unit 5 comprises a threaded rod 501 threadedly connected to the inner wall of the adjusting seat 402, and an extrusion seat 502 fixedly connected to the bottom end surface of the threaded rod 501 and located above the valve disc 3. When the water pressure in the valve body 1 is too large, the pressure seat 504 and the valve disc 3 are moved under the pressure of the valve body 1. The movement of the pressure seat 504 causes the pressure seat 504 to compress the spring 503. When the pressure of the spring 503 is balanced with the water pressure, the movement distance of the pressure seat 504 is limited under the action of the pressure seat 504, so that the water is discharged according to the pressure. The position of the extrusion seat 502 is adjusted by rotating the threaded rod 501 along the adjusting seat 402, the spring 503 is compressed, and the pressure range of the water discharge is adjusted.

[0028] The outer wall of the adjusting seat 402 is fixedly connected with the fixing seat 404.

[0029] The bottom end surface of the adjusting seat 402 is fixedly connected with the fixing seat 404, and the top end surface of the adjusting seat 402 is fixedly connected with a rotating seat 403. The adjusting seat 402 is moved along the inner wall of the connecting seat 401 by rotating the adjusting seat 402, so that the adjusting seat 402 drives the fixing seat 404 and the limiting seat 405 to move. The position of the valve disc 3 is limited by the limiting seat 405. When the valve disc 3 contacts the limiting seat 405, the movement position of the valve disc 3 is limited, and the liquid discharge amount is limited.

[0030] The inner wall of the valve disc 3 is fixedly connected with the pressure seat 504, and the pressure seat 504 is inserted into the valve seat of the valve body 1. The valve body 1 is sealed by the valve disc 3 and the pressure seat 504.

[0031] The top end surface of the pressure seat 504 is fixedly connected with the spring 503.

[0032] The other end of the spring 503 is fixedly connected to the bottom end face of the extrusion seat 502, when the water pressure in the valve body 1 is too large, at this time, the pressure seat 504 and the valve disc 3 are pushed to move under the pressure of the valve body 1, the movement of the pressure seat 504 makes the pressure seat 504 compress the spring 503, when the pressure of the spring 503 is balanced with the water pressure, at this time, the movement distance of the pressure seat 504 is limited under the action of the pressure seat 504, and the drainage according to the pressure is facilitated.

[0033] The bottom end face of the valve disc 3 is provided with a sealing gasket, and the sealing effect of the valve body 1 is ensured under the action of the sealing gasket.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-directional check valve with a valve stem, characterized in that: The valve body (1) comprises a valve body (1), a mounting seat (2), a valve flap (3), a limiting unit (4) and an adjusting unit (5), wherein the mounting seat (2) is mounted on the valve body (1) by means of bolts, the valve flap (3) is fitted on the valve seat in the valve body (1), the limiting unit (4) is mounted on the mounting seat (2), and the adjusting unit (5) is arranged below the limiting unit (4). The limiting unit (4) comprises a connecting seat (401), the connecting seat (401) is installed in the mounting seat (2), an adjusting seat (402) is threadedly connected to the inner wall of the connecting seat (401), and a limiting seat (405) is provided on the outer wall of the adjusting seat (402); The adjustment unit (5) comprises a threaded rod (501), the threaded rod (501) being threadedly connected to the inner wall of the adjustment seat (402), the bottom end face of the threaded rod (501) being fixedly connected to an extrusion seat (502), and the extrusion seat (502) being located above the valve flap (3).

2. A stem multi-directional adjustment check valve according to claim 1, characterized in that: The bottom end surface of the adjustment seat (402) is fixedly connected to a fixed seat (404), and the top end surface of the adjustment seat (402) is fixedly connected to a rotating seat (403).

3. A stem multi-directional adjustment check valve according to claim 2, characterized in that: The bottom end surface of the fixed seat (404) is fixedly connected to a limiting seat (405), and the limiting seat (405) is located above the valve flap (3).

4. A stem multi-directional adjustable check valve according to claim 3, characterized in that: A pressure seat (504) is fixedly connected to the inner wall of the valve disc (3), and the pressure seat (504) is inserted into the valve seat of the valve body (1).

5. The stem multi-directional adjustable check valve according to claim 4, characterized in that: The top end surface of the pressure seat (504) is fixedly connected to a spring (503).

6. A stem multi-directional adjustable check valve according to claim 5, characterized in that: The other end of the spring (503) is fixedly connected to the bottom end surface of the extrusion seat (502).

7. A stem multi-directional adjustable check valve according to claim 6, characterized in that: A sealing gasket is provided on the bottom end surface of the valve flap (3).

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