Novel axial-flow type check valve

Abstract

The utility model discloses a novel axial-flow type check valve, which relates to the technical field of check valves and comprises a valve body. The outer side of the feeding device is fixedly connected with the outer side of the valve body; the outer side of the discharging opening is fixedly connected with the side, away from the feeding device, of the valve body; the bottom of the adjusting device is fixedly connected with the top of the valve body; the outer side of the non-return device is fixedly connected with the inner side of the valve body; the non-return device comprises a guide sleeve, a valve rod assembly is slidably connected to the inner side of the guide sleeve, and a valve clack is fixedly connected to the end, away from the discharging port, of the valve rod assembly. The feeding device is arranged to distribute media, guide the media to flow forwards and block large impurities in the media, the situation that the impurities clamp the valve clack and affect work of the valve is avoided, meanwhile, the opening and closing pressure of the valve clack can be adjusted through the adjusting device, and the device adapts to the using working conditions of different media.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field, concretely relates to a novel axial flow check valve. BACKGROUND

[0002] Check valve is the closing piece for circular valve clapper and acts to block the medium backflow by its own weight and medium pressure, belongs to automatic valve, also called check valve, one-way valve, reflux valve or isolation valve, valve clapper movement mode divides into lift type and swing type, check valve can also be used to provide supply for the pipeline of auxiliary system in which the pressure can rise to exceed the system pressure.

[0003] In prior art, such as Chinese patent number: CN210461807U, a kind of axial flow check valve, including valve body, valve body is equipped with valve seat, valve clapper and flow guide, the valve clapper is fixed on valve seat, and valve clapper is equipped with pin shaft, the flow guide is equipped on pin shaft, and spring is equipped between flow guide and valve clapper, its characterized in that: the valve clapper edge circumference is equally divided with multiple guide rods, the flow guide is equipped with the through hole that guide rod passes through.

[0004] But in prior art, the pressure of valve clapper opening and closing is difficult to adjust, the valve can not well adapt to the use condition of different medium, the application range of valve is smaller, and when there is impurity in medium, part of impurity is easy to be stuck in valve clapper, influence valve clapper closing, in order to solve above problem, we propose a kind of novel axial flow check valve. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the technical scheme adopted by the utility model to solve its technical problems is: a kind of novel axial flow check valve, including valve body;Feeding device, the outer side of the feeding device is fixedly connected with the outer side of the valve body;Discharge port, the outer side of the discharge port is fixedly connected with the side of the valve body away from the feeding device;Adjusting device, the bottom of the adjusting device is fixedly connected with the top of the valve body, and the adjusting device is used to adjust the valve opening pressure;

[0006] Check device, the outer side of the check device is fixedly connected with the inner side of the valve body, and the check device is used to prevent medium backflow;The check device includes guide sleeve, the outer side of the guide sleeve is fixedly connected with the inner side of the valve body, the inner side of the guide sleeve is slidably connected with valve rod assembly, and the end of the valve rod assembly away from the discharge port is fixedly connected with valve clapper;

[0007] In use, by setting feeding device, medium is shunted, medium is guided to flow forward, and larger impurities in medium are blocked, to avoid impurities to jam valve clapper, affect valve work, at the same time, the pressure of valve clapper opening and closing can be adjusted by adjusting device, to adapt to the use condition of different medium.

[0008] Preferably, the valve rod assembly comprises a connecting rod, the outer side of the connecting rod is fixedly connected with the outer side of the valve disc, the side of the connecting rod away from the valve disc is fixedly connected with a sliding rod, the outer side of the sliding rod is slidably connected with the inner side of the guide sleeve, the outer side of the sliding rod is sleeved with a compression spring, the end of the compression spring away from the connecting rod is fixedly connected with a sliding block, the inner side of the sliding block is slidably connected with the outer side of the sliding rod, in use, the valve rod assembly drives the valve disc to open and close, when the medium flows forward, the valve is opened, when the medium backflows, the valve is closed to prevent the medium from flowing reversely.

[0009] Preferably, the adjusting device comprises a fixing piece, the bottom of the fixing piece is fixedly connected with the top of the valve body, the inner side of the fixing piece is rotatably connected with a rotating rod, the top of the rotating rod is fixedly connected with a rotating disc, the bottom of the rotating rod penetrates through the valve body and is fixedly connected with an adjusting assembly, the outer side of the adjusting assembly is slidably connected with the outer side of the sliding block, by arranging the adjusting device, the pressure of the valve disc opening and closing is adjusted, the adjusting device can change the pressure applied by the valve rod assembly on the valve disc, so that the pressure of the valve disc opening and closing is changed, so that the valve can adapt to the use conditions of different media, and the applicability of the valve is enhanced.

[0010] Preferably, the adjusting assembly comprises a threaded rod, the top end of the threaded rod is fixedly connected with the bottom of the rotating rod, the bottom of the threaded rod penetrates through the guide sleeve and is rotatably connected with a fixed table, the bottom of the fixed table is fixedly connected with the inner side of the guide sleeve, the outer side of the threaded rod is slidably connected with a sliding table, the outer side of the sliding table is slidably connected with the outer side of the sliding block, by adjusting the pressure of the valve disc opening and closing through the adjusting assembly, the valve can adapt to the use conditions of different media, and the applicability of the valve is enhanced.

[0011] Preferably, the feeding device comprises a feeding pipe, the outer side of the feeding pipe is fixedly connected with the outer side of the valve body, the inner side of the feeding pipe is fixedly connected with a flow dividing plate, the side of the flow dividing plate away from the feeding pipe is fixedly connected with a circular ring, the inner side of the circular ring is slidably connected with a limiting rod, the outer side of the limiting rod is fixedly connected with the outer side of the valve disc, by arranging the feeding device, the medium is divided, and the medium is guided to flow forward, the feeding device blocks the larger impurities in the medium, avoids that the impurities block the valve disc and affect the work of the valve.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a adjusting device, the pressure of valve disc opening and closing is adjusted, the adjusting device can change the pressure applied by the valve rod assembly on the valve disc, so that the pressure of the valve disc opening and closing is changed, so that the valve can adapt to the use conditions of different media, and the applicability of the valve is enhanced.

[0014] 2. The utility model discloses a feed device is set up, and the medium is shunted, and the medium is guided to flow forward, and the feed device is kept off the larger impurity in the medium, avoids the impurity to jam the valve flap, and influences the valve work. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is the sectional view of the utility model;

[0017] Figure 3 It is the structure sectional view of the non -return device of the utility model;

[0018] Figure 4 It is the structure schematic view of the valve stem subassembly of the utility model;

[0019] Figure 5 It is the structure sectional view of the adjusting assembly of the utility model;

[0020] Figure 6 It is the structure sectional view of the feed device of the utility model.

[0021] In the drawing: 1, valve body;2, adjusting device;21, fixed part;22, rotating rod;23, rotating disc;24, adjusting assembly;241, threaded rod;242, fixed table;243, sliding table;3, feed device;31, feed pipe;32, shunt plate;33, circular ring;34, limit rod;4, discharge port;5, non -return device;51, guide sleeve;52, valve stem subassembly;521, connecting rod;522, sliding rod;523, compression spring;524, sliding block;53, valve flap. DETAILED DESCRIPTION

[0022] The utility model makes further detailed explanation in combination with the drawing and specific implementation below. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and make those skilled in the art understand the utility model to design various embodiments with various modifications suitable for specific use. EMBODIMENT

[0023] Please refer to Figures 1-6The utility model provides a technical scheme: a novel axial -flow check valve, including valve body 1, feed device 3, the outside of feed device 3 is fixedly connected with the outside of valve body 1, discharge outlet 4, the outside of discharge outlet 4 is fixedly connected with the one side of valve body 1 away from feed device 3, adjusting device 2, the bottom of adjusting device 2 is fixedly connected with the top of valve body 1, and adjusting device 2 is used to adjust the valve opening pressure,

[0024] Check device 5, the outside of check device 5 is fixedly connected with the inside of valve body 1, and check device 5 is used to prevent medium backflow, and check device 5 includes guide sleeve 51, the outside of guide sleeve 51 is fixedly connected with the inside of valve body 1, the inside of guide sleeve 51 is slidably connected with valve rod assembly 52, and one end of valve rod assembly 52 away from discharge outlet 4 is fixedly connected with valve clack 53,

[0025] When using, medium flows to the inside of valve body 1 along feed device 3, medium pushes away valve clack 53, valve clack 53 drives valve rod assembly 52 to move, valve rod assembly 52 moves along guide sleeve 51 to the direction away from feed device 3, at this time, valve clack 53 and valve body 1 are not contacted, and medium flows to the inside of valve body 1 along the gap between valve clack 53 and valve body 1, and medium flows to the discharge outlet 4 along valve body 1, and then flows to the outside from discharge outlet 4, when using, can change the pressure of valve clack 53 opening and closing by adjusting adjusting device 2,

[0026] When using, by setting feed device 3, medium is shunted, medium is guided to flow forward, and the larger impurities in medium are blocked, so that the impurities are prevented from jamming valve clack 53 and affecting the work of valve, and simultaneously, the pressure of valve clack 53 opening and closing can be adjusted by adjusting device 2, and the use condition of different medium is adapted.

[0027] The valve rod assembly 52 comprises a connecting rod 521, the outer side of the connecting rod 521 is fixedly connected with the outer side of the valve disc 53, the side of the connecting rod 521 away from the valve disc 53 is fixedly connected with a sliding rod 522, the outer side of the sliding rod 522 is slidably connected with the inner side of the guide sleeve 51, the outer side of the sliding rod 522 is sleeved with a compression spring 523, one end of the compression spring 523 away from the connecting rod 521 is fixedly connected with a sliding block 524, the inner side of the sliding block 524 is slidably connected with the outer side of the sliding rod 522, in use, the valve disc 53 drives the connecting rod 521 to move away from the feeding device 3, the connecting rod 521 drives the sliding rod 522 to move, at the same time, the connecting rod 521 drives the compression spring 523 to compress, the medium flows into the valve body 1 along the gap between the valve disc 53 and the valve body 1, when the medium stops inputting, the valve disc 53 is no longer subjected to the pressure applied by the medium, the compression spring 523 drives the connecting rod 521 and the sliding rod 522 to move towards the feeding device 3 under the action of its own elastic force, the connecting rod 521 drives the valve disc 53 to move close to the feeding device 3, the valve disc 53 contacts the valve body 1, blocks the valve body 1, and prevents the medium in the valve body 1 from flowing back, in use, the valve disc 53 is driven by the valve rod assembly 52 to open and close, when the medium flows forward, the valve is opened, when the medium flows back, the valve is closed, and the medium is prevented from flowing in the reverse direction.

[0028] The adjusting device 2 comprises a fixed part 21, the bottom of the fixed part 21 is fixedly connected with the top of the valve body 1, the inner side of the fixed part 21 is rotatably connected with a rotating rod 22, the top of the rotating rod 22 is fixedly connected with a rotating disc 23, the bottom of the rotating rod 22 penetrates through the valve body 1 and is fixedly connected with an adjusting assembly 24, the outer side of the adjusting assembly 24 is slidably connected with the outer side of the sliding block 524, when it is necessary to change the pressure at which the valve disc 53 opens and closes, the rotating disc 23 on the fixed part 21 is rotated, the rotating disc 23 drives the rotating rod 22 to rotate, the rotating rod 22 drives the adjusting assembly 24 to rotate, the adjusting assembly 24 drives the sliding block 524 to slide, the sliding block 524 slides, the compression degree of the compression spring 523 is changed, the pressure applied by the compression spring 523 to the valve disc 53 is changed, the force required to push away the valve disc 53 when the medium flows in is changed, by arranging the adjusting device 2, the pressure at which the valve disc 53 opens and closes is adjusted, the adjusting device 2 can change the pressure applied by the valve rod assembly 52 to the valve disc 53, so as to change the pressure at which the valve disc 53 opens and closes, so that the valve can adapt to different use conditions of different media, and the applicability of the valve is enhanced.

[0029] The adjusting assembly 24 comprises a threaded rod 241, the top end of the threaded rod 241 is fixedly connected with the bottom of the rotating rod 22, the bottom of the threaded rod 241 penetrates through the guide sleeve 51 and is rotationally connected with a fixed table 242, the bottom of the fixed table 242 is fixedly connected with the inner side of the guide sleeve 51, the outer side of the threaded rod 241 is slidably connected with a sliding table 243, the outer side of the sliding table 243 is slidably connected with the outer side of the sliding block 524, in use, the rotating rod 22 drives the threaded rod 241 to rotate, the threaded rod 241 drives the sliding table 243 to slide downwards, since the connecting surface between the sliding table 243 and the sliding block 524 has a certain angle, when the sliding table 243 slides downwards, the sliding table 243 drives the sliding block 524 to move towards the feeding device 3, the sliding block 524 drives the compression spring 523 to compress, the compression degree of the compression spring 523 increases, the compression spring 523 is affected by the elastic force of itself, the pressure applied to the valve disc 53 increases, the pressure required for the medium to push away the valve disc 53 increases, the pressure at which the valve disc 53 is adjusted to open and close is adjusted through the adjusting assembly 24, so that the valve can adapt to different use conditions of different media, and the applicability of the valve is enhanced

[0030] The feeding device 3 comprises a feeding pipe 31, the outer side of the feeding pipe 31 is fixedly connected with the outer side of the valve body 1, the inner side of the feeding pipe 31 is fixedly connected with a flow dividing plate 32, the side, away from the feeding pipe 31, of the flow dividing plate 32 is fixedly connected with a circular ring 33, the inner side of the circular ring 33 is slidably connected with a limiting rod 34, the outer side of the limiting rod 34 is fixedly connected with the outer side of the valve disc 53, in use, the medium is sent into the inside of the feeding pipe 31, the medium flows along the feeding pipe 31 to the flow dividing plate 32, since the flow dividing plate 32 makes the inlet of the valve body 1 smaller, the larger impurities in the medium are blocked by the flow dividing plate 32 and cannot enter the inside of the valve body 1, the medium flows along the flow dividing plate 32 to the valve disc 53, the pressure applied by the medium drives the valve disc 53 to move forward, the valve disc 53 drives the limiting rod 34 to move, the limiting rod 34 slides along the circular ring 33, the limiting rod 34 limits the position of the valve disc 53, avoids the deviation of the valve disc 53 and affects the sealing of the valve, the feeding device 3 divides the flow of the medium and guides the medium to flow forward, the feeding device 3 blocks the larger impurities in the medium, avoids the impurities from blocking the valve disc 53 and affecting the work of the valve.

[0031] Working principle:

[0032] In use, the medium is sent into the inside of the feeding pipe 31, the medium flows along the feeding pipe 31 to the flow distribution plate 32, the medium flows along the flow distribution plate 32 to the valve flap 53, the pressure applied by the medium drives the valve flap 53 to move forward, the valve flap 53 drives the limiting rod 34 to slide along the ring 33, at the same time, the valve flap 53 drives the connecting rod 521 to move away from the feeding device 3, the connecting rod 521 drives the sliding rod 522 to move, the sliding rod 522 slides along the guide sleeve 51, the compression spring 523 is compressed and deformed by the connecting rod 521, the medium flows along the gap between the valve flap 53 and the valve body 1 into the inside of the valve body 1, the medium flows along the valve body 1 to the discharge port 4 and then flows to the outside from the discharge port 4;

[0033] When the medium stops being input, the valve flap 53 is no longer subjected to the pressure applied by the medium, the compression spring 523 drives the connecting rod 521 and the sliding rod 522 to move towards the feeding device 3 under the action of the elastic force of the compression spring 523, the connecting rod 521 drives the valve flap 53 to move towards the feeding device 3, at this time, the check device 5 is reset, the valve rod assembly 52 drives the valve flap 53 to block the valve body 1, so as to prevent the medium in the inside of the valve body 1 from flowing back;

[0034] In use, the pressure at which the valve flap 53 is opened and closed can be changed by the adjusting device 2, the rotating disc 23 on the fixed part 21 is rotated, the rotating disc 23 drives the rotating rod 22 to rotate, the rotating rod 22 drives the threaded rod 241 in the adjusting assembly 24 to rotate, the threaded rod 241 drives the sliding table 243 to slide downwards, when the sliding table 243 slides downwards too much, the sliding table 243 is blocked by the fixed table 242, since the connecting surface between the sliding table 243 and the sliding block 524 has a certain angle, when the sliding table 243 slides downwards, the sliding table 243 drives the sliding block 524 to move towards the feeding device 3, the sliding block 524 drives the compression spring 523 to compress, the compression spring 523 is compressed to a greater extent, the compression spring 523 is subjected to the elastic force of the compression spring 523, the pressure applied by the compression spring 523 to the valve flap 53 is increased, and the pressure required by the medium to push away the valve flap 53 is increased.

[0035] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative work should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A new type of axial flow check valve characterized in that, Include: Valve body (1); Feed device (3), the outer side of the feed device (3) is fixedly connected with the outer side of the valve body (1); The discharge port (4) is fixedly connected with the outer side of the valve body (1) away from the feed device (3); Adjusting device (2), the bottom of the adjusting device (2) is fixedly connected with the top of the valve body (1), and the adjusting device (2) is used for adjusting the valve opening pressure; Check device (5), the outer side of the check device (5) is fixedly connected with the inner side of the valve body (1), and the check device (5) is used for preventing medium backflow; The check device (5) includes a guide sleeve (51), the outer side of the guide sleeve (51) is fixedly connected with the inner side of the valve body (1), the inner side of the guide sleeve (51) is slidably connected with a valve stem assembly (52), and the valve stem assembly (52) is fixedly connected with a valve flap (53) away from the discharge port (4).

2. A new type of axial flow check valve according to claim 1, characterized in that: The valve stem assembly (52) includes a connecting rod (521), the outer side of the connecting rod (521) is fixedly connected with the outer side of the valve flap (53), the side away from the valve flap (53) of the connecting rod (521) is fixedly connected with a sliding rod (522), the outer side of the sliding rod (522) is slidably connected with the inner side of the guide sleeve (51), the outer side of the sliding rod (522) is sleeved with a compression spring (523), one end of the compression spring (523) away from the connecting rod (521) is fixedly connected with a sliding block (524), and the inner side of the sliding block (524) is slidably connected with the outer side of the sliding rod (522).

3. A new type of axial flow check valve according to claim 2, characterized in that: The adjusting device (2) includes a fixing piece (21), the bottom of the fixing piece (21) is fixedly connected with the top of the valve body (1), the inner side of the fixing piece (21) is rotatably connected with a rotating rod (22), the top of the rotating rod (22) is fixedly connected with a rotating disc (23), the bottom of the rotating rod (22) penetrates through the valve body (1) and is fixedly connected with an adjusting assembly (24), and the outer side of the adjusting assembly (24) is slidably connected with the outer side of the sliding block (524).

4. A new type of axial flow check valve according to claim 3, characterized in that: The adjusting assembly (24) includes a threaded rod (241), the top end of the threaded rod (241) is fixedly connected with the bottom of the rotating rod (22), the bottom of the threaded rod (241) penetrates through the guide sleeve (51) and is rotatably connected with a fixed table (242), the bottom of the fixed table (242) is fixedly connected with the inner side of the guide sleeve (51), the outer side of the threaded rod (241) is slidably connected with a sliding table (243), and the outer side of the sliding table (243) is slidably connected with the outer side of the sliding block (524).

5. A new type of axial flow check valve according to claim 1, characterized in that: The feed device (3) includes a feed pipe (31), the outer side of the feed pipe (31) is fixedly connected with the outer side of the valve body (1), the inner side of the feed pipe (31) is fixedly connected with a flow dividing plate (32), the side away from the feed pipe (31) of the flow dividing plate (32) is fixedly connected with a circular ring (33), the inner side of the circular ring (33) is slidably connected with a limiting rod (34), and the outer side of the limiting rod (34) is fixedly connected with the outer side of the valve flap (53).

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