CN219588224U

CN219588224U - One-way valve

Info

Publication number: CN219588224U
Application number: CN202321321776.4U
Authority: CN
Inventors: 柯朝晖
Original assignee: Wensu Ningbo Automation Technology Co ltd
Current assignee: Wensu Ningbo Automation Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-08-25
Anticipated expiration: 2033-05-29

Abstract

The utility model relates to a one-way valve, which comprises a valve body, a valve cover, a valve plate and a valve core, wherein the valve cover is sealed and detachably fixed at the top of the valve body, the valve plate is arranged between the valve body and the valve cover, the valve core is sealed and movably arranged in the valve body, a first concave cavity is formed in the center of the top of the valve body, a liquid inlet cavity is formed in the center of the bottom surface of the first concave cavity, a second concave cavity is formed in the center of the bottom of the valve cover, a liquid outlet cavity is formed in the center of the bottom surface of the second concave cavity, the valve plate is embedded in the first concave cavity and the second concave cavity, a guide hole is formed in the center of the valve plate, and a plurality of guide holes uniformly distributed at the periphery of the guide hole along the circumferential direction in equal angle are formed in the valve plate; the utility model adopts a detachable structure, thus greatly saving the use cost and avoiding the waste; in addition, the phenomenon that fluid materials are unevenly distributed and the flow velocity is increased when the fluid materials pass through the one-way valve can be effectively prevented, so that the stability of the pipeline is fully ensured, and the load of the pipeline is reduced.

Description

One-way valve

Technical Field

The utility model relates to a one-way valve.

Background

The one-way valve is a valve for preventing the reverse flow of oil flow in a hydraulic system or compressed air in a pneumatic system; the existing one-way valve adopts an integrated structure, so that the one-way valve cannot be disassembled and can only be replaced integrally once damaged, but part of one-way valves suitable for pipelines with larger diameters are high in manufacturing cost, the use cost is increased due to the integral replacement, and in many cases, the inside of the one-way valve is likely to be invalid only due to blockage and can be used continuously only after being cleaned, so that the direct replacement is equivalent to the waste of resources; in addition, the larger diameter pipeline is larger in cross section area of the material, so that the material passing through the unit cross section area is not distributed uniformly due to lack of buffering when the material passes through the one-way valve, the flow speed is increased and becomes unstable, the load of the pipeline is increased, and the pipeline is required to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art, and provides a one-way valve which adopts a detachable structure to greatly save the use cost and avoid waste, and can also effectively prevent the phenomenon that fluid materials are unevenly distributed and the flow rate is increased when passing through the one-way valve so as to fully ensure the stability of a pipeline and reduce the load of the pipeline.

The technical scheme adopted for solving the technical problems is as follows: the one-way valve is characterized by comprising a valve body, a valve cover, a valve plate and a valve core, wherein the valve cover is sealed and detachably fixed on the top of the valve body, the valve plate is arranged between the valve body and the valve cover, the valve core is sealed and movably arranged in the valve body, a first concave cavity is formed in the center of the top of the valve body, a liquid inlet cavity is formed in the center of the bottom surface of the first concave cavity, a second concave cavity is formed in the center of the bottom of the valve cover, a liquid outlet cavity is formed in the center of the bottom surface of the second concave cavity, the valve plate is embedded in the first concave cavity and the second concave cavity, guide holes are formed in the center of the valve plate, a plurality of guide holes uniformly distributed on the periphery of the guide holes in the circumferential direction at equal angles are formed in the valve plate, a first extension part is formed downwards at the bottom of the valve body, a liquid inlet hole is formed between the center of the bottom surface of the liquid inlet cavity and the outer wall of the end of the first extension part, the valve core is movably arranged in the liquid inlet hole, a first sealing ring is sleeved outside the valve core, the outer diameter of the first sealing ring is larger than the outer diameter of the valve core, and the outer wall of the first sealing ring is in a sliding fit on the inner wall of the liquid inlet hole; the outer side edge of the top of the valve core is outwards provided with an annular flange, the annular flange is movably arranged in the liquid inlet cavity, the top center of the valve core is upwards provided with a vertically arranged boss, the end center of the boss is upwards provided with a vertically arranged limit column, the end center of the limit column is upwards provided with a vertically arranged guide column, the guide column is inserted and arranged in the guide hole, springs are sleeved outside the limit column and the guide column, the upper ends of the springs are tightly propped against the bottom of the valve plate, and the lower ends of the springs are tightly propped against the end parts of the boss; a plurality of deflection preventing rods which are uniformly arranged along the circumferential direction at equal angles are downwards formed at the outer side edge of the bottom of the valve core, and the outer walls of the deflection preventing rods are all in sliding fit with the inner wall of the liquid inlet hole; the top center of the valve cover upwards forms a second extension part, and a liquid outlet hole is formed between the bottom center of the liquid outlet cavity and the outer wall of the end part of the second extension part.

Preferably, a first annular conical surface is formed at the edge of the top opening of the liquid inlet hole, and a second annular conical surface is formed at the edge of the bottom opening of the liquid outlet hole.

Preferably, the top outside edge of valve body outwards is formed with first annular turn-ups, correspondingly, the bottom outside edge of valve gap outwards is formed with the second annular turn-ups, the laminating of second annular turn-ups bottom is at first annular turn-ups's top, first annular turn-ups with second annular turn-ups's outside still is equipped with two and is each other for the diagonal setting and can dismantle fixed arc clamp each other, the arc recess has been seted up on the inner wall of arc clamp, first annular turn-ups with the edge of second annular turn-ups all imbeds in two arc recesses so that the top of valve body compresses tightly each other with the bottom of valve gap.

Preferably, the top of the first annular flanging is provided with first annular sealing grooves which are concentrically distributed, correspondingly, the bottom of the second annular flanging is provided with second annular sealing grooves which are concentrically distributed, and a second sealing ring is further embedded between the first annular sealing grooves and the second annular sealing grooves.

Preferably, both ends of the arc-shaped clamp are outwards provided with a bending section, one of the bending sections is also provided with a transversely arranged internal thread sleeve, the other bending section is also provided with a through hole, and the internal thread sleeve or the through hole on one of the arc-shaped clamps is concentrically arranged with and matched with the through hole or the internal thread sleeve on the other arc-shaped clamp.

Preferably, the through holes on the two arc-shaped hoops are also inserted with a bolt, and the threaded ends of the bolts on one arc-shaped hoop are inserted into the internal thread sleeves screwed on the other arc-shaped hoop so as to fix the two arc-shaped hoops with each other.

Preferably, the conical counter bore is formed in the center of the bottom of the valve plate, the bottom opening of the guide hole and the center of the bottom surface of the conical counter bore are concentrically arranged and communicated with each other, and an annular chamfer edge is formed at the edge of the bottom opening of the guide hole.

Compared with the prior art, the utility model has the advantages that: the utility model adopts a detachable structure, the valve body and the valve cover can be detached only by separating the two arc-shaped clamps, if the valve body or the valve cover is blocked and the valve core or the valve plate is damaged, the check valve can be recovered to be normally used only by cleaning the valve body or the valve cover and replacing the valve core or the valve plate, and the check valve is not required to be integrally replaced, so that the use cost is greatly saved and the waste is avoided; in addition, the fluid material entering the valve body can be buffered in the liquid inlet cavity, and the flow diversion and pressure equalizing effects are achieved when the fluid material flows through the plurality of diversion holes, so that the phenomenon that the fluid material is unevenly distributed and the flow velocity is increased when the fluid material passes through the one-way valve is effectively prevented, the stability of a pipeline is fully ensured, and the load of the pipeline is reduced.

Drawings

FIG. 1 is a schematic diagram of a top-down exploded view of the present utility model;

FIG. 2 is a top-down exploded view of the present utility model;

fig. 3 is a plan side view of the valve body of the present utility model.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.

As shown in fig. 1 to 3, a one-way valve comprises a valve body 1, a valve cover 2, a valve plate 3 and a valve core 4, wherein the valve cover 2 is sealed and detachably fixed at the top of the valve body 1, the valve plate 3 is arranged between the valve body 1 and the valve cover 2, the valve core 4 is sealed and movably arranged in the valve body 1, a first cavity 101 is formed in the center of the top of the valve body 1, a liquid inlet cavity 102 is formed in the center of the bottom surface of the first cavity 101, a second cavity 21 is formed in the center of the bottom of the valve cover 2, a liquid outlet cavity 22 is formed in the center of the bottom surface of the second cavity 21, the valve plate 3 is embedded in the first cavity 101 and the second cavity 21, a guide hole 32 is formed in the center of the valve plate 3, a plurality of guide holes 31 uniformly distributed at the periphery of the guide hole 32 along the circumferential direction in equal angles are formed in the valve plate 3, a first extension 104 is formed downwards at the bottom of the valve body 1, a liquid inlet hole 105 is formed between the center of the bottom surface of the valve core 102 and the outer wall of the end of the first extension 104, the valve core 4 is movably arranged in the liquid inlet hole 105, a first sealing ring 6 is sleeved outside the valve core 4, the outer diameter of the first sealing ring 6 is larger than the outer diameter of the 4, and the outer diameter of the first sealing ring 6 is attached to the inner wall of the valve core 6 in a sliding mode; the outer side edge of the top of the valve core 4 is outwards provided with an annular flange 42, the annular flange 42 is movably arranged in the liquid inlet cavity 102, the top center of the valve core 4 is upwards provided with a boss 43 which is vertically arranged, the end center of the boss 43 is upwards provided with a limit column 44 which is vertically arranged, the end center of the limit column 44 is upwards provided with a guide column 45 which is vertically arranged, the guide column 45 is inserted and arranged in the guide hole 32, the outer parts of the limit column 44 and the guide column 45 are also sleeved with a spring 5, the upper end of the spring 5 is propped against the bottom of the valve plate 3, and the lower end of the spring 5 is propped against the end of the boss 43; a plurality of deflection preventing rods 46 uniformly arranged along the circumferential direction at equal angles are downwards formed at the outer side edge of the bottom of the valve core 4, and the outer walls of the deflection preventing rods 46 are all in sliding fit with the inner wall of the liquid inlet 105; the top center of the valve cover 2 is upwards provided with a second extension part 24, and a liquid outlet hole 25 is formed between the bottom center of the liquid outlet cavity 22 and the outer wall of the end part of the second extension part 24.

The edge of the top opening of the liquid inlet 105 is provided with a first annular conical surface 103, and the edge of the bottom opening of the liquid outlet 25 is provided with a second annular conical surface 23.

The outside edge of the top of valve body 1 outwards is formed with first annular turn-ups 106, correspondingly, the outside edge of the bottom of valve gap 2 outwards is formed with second annular turn-ups 26, the bottom laminating of second annular turn-ups 26 is at the top of first annular turn-ups 106, the outside of first annular turn-ups 106 and second annular turn-ups 26 still is equipped with two arc clamp 8 that each other are the diagonal setting and can dismantle fixed each other, arc recess 84 has been seted up on the inner wall of arc clamp 8, the edge of first annular turn-ups 106 and second annular turn-ups 26 all imbeds in two arc recess 84 so that the top of valve body 1 compresses tightly each other with the bottom of valve gap 2.

The top of the first annular flange 106 is provided with a first annular sealing groove 107 which is concentrically distributed, correspondingly, the bottom of the second annular flange 26 is provided with a second annular sealing groove 27 which is concentrically distributed, and a second sealing ring 7 is further embedded between the first annular sealing groove 107 and the second annular sealing groove 27.

Two ends of the arc-shaped clamp 8 are outwards provided with a bending section 81, one bending section 81 is internally provided with a transversely arranged internal thread sleeve 82, the other bending section 81 is internally provided with a through hole 83, and the internal thread sleeve 82 or the through hole 83 on one arc-shaped clamp 8 are concentrically arranged with the through hole 83 or the internal thread sleeve 82 on the other arc-shaped clamp 8 and are mutually matched.

A bolt 9 is inserted into the through holes 83 of the two arc-shaped hoops 8, and the threaded ends of the bolts 9 on one arc-shaped hoops 8 are inserted into the internal threaded sleeves 82 screwed on the other arc-shaped hoops 8 to fix the two arc-shaped hoops 8 to each other.

The conical counter bore 33 is arranged at the bottom center of the valve plate 3, the bottom opening of the guide hole 32 and the bottom center of the conical counter bore 33 are concentrically arranged and communicated with each other, an annular chamfer edge 34 is formed at the edge of the bottom opening of the guide hole 32, and the annular chamfer edge 34 facilitates the quick and accurate passing of the guide post 45 through the guide hole 32 when the valve core 4 is installed.

An annular groove 41 is formed in the outer peripheral surface of the valve core 4, and the first sealing ring 6 is sleeved in the annular groove 41.

Working principle:

the fluid material is connected into the liquid inlet 105, initially, as the valve core 4 is located in the liquid inlet 105 and the outer wall of the first sealing ring 6 is in sliding fit with the inner wall of the liquid inlet 105, the valve core 4 seals the top opening of the liquid inlet 105, as the pressure of the fluid material is continuously increased, the hydraulic pressure pushes the valve core 4 to move upwards, when a gap appears between the outer wall of the first sealing ring 6 and the inner wall of the liquid inlet 105, the fluid material in the liquid inlet 105 enters the bottom of the liquid inlet 102 through the gap, further passes through the area between the annular flange 42 and the inner wall of the liquid inlet 102 and enters the top opening of the liquid inlet 102, so as to continuously enter the liquid outlet 22 through the plurality of diversion holes 31, finally, the fluid material is discharged outwards through the liquid outlet 25, in the process, the fluid material is uniformly divided into a plurality of diversion holes 31, meanwhile, when the valve core 4 moves upwards, the spring 5 is compressed, when the end of the limit post 44 abuts against the bottom surface of the cone-shaped 33, the valve core 4 reaches the highest position, the flow of the fluid material reaches the maximum, and the fluid material is located in the inner wall of the liquid inlet 46 of the liquid inlet 105, and each diversion preventing the valve core 46 from being biased towards the inner wall of the liquid inlet 46 in each liquid inlet 105, and each diversion rod 46 is still in the liquid inlet 46.

After the fluid material stops inputting, the valve core 4 moves downwards to reset by means of the elasticity of the spring 5 after losing hydraulic pushing, and after the valve core 4 completely returns to the liquid inlet 105, the outer wall of the first sealing ring 6 is attached to the inner wall of the liquid inlet 105 again to achieve a sealing state; when the bottom of the annular flange 42 is attached to the bottom surface of the inlet chamber 102, the valve element 4 reaches the lowest position.

If fluid material is input from the liquid outlet 25, although the fluid material enters the liquid inlet 102 through the plurality of diversion holes 31, even if the hydraulic pressure is too high, the pressure will act on the top of the annular flange 42 downward to tightly press the annular flange against the bottom of the liquid inlet 102, so that the valve core 4 will not move, and the first sealing ring 6 and the liquid inlet 105 will be always sealed, thereby realizing the unidirectional flow effect.

The utility model adopts a detachable structure, the valve body 1 and the valve cover 2 can be detached only by separating the two arc-shaped clamps 8, if the valve body 1 or the valve cover 2 is blocked and the valve core 4 or the valve plate 3 is damaged, the check valve can be recovered to be normally used only by cleaning the valve body 1 or the valve cover 2 and replacing the valve core 4 or the valve plate 3, and the check valve is not required to be integrally replaced, so that the use cost is greatly saved and the waste is avoided; in addition, the fluid material entering the valve body 1 can be buffered in the liquid inlet cavity 102, and plays an effective role in diversion and pressure equalizing when flowing through the plurality of diversion holes 31, so that the phenomenon that the fluid material is unevenly distributed and the flow velocity is increased when passing through the one-way valve is effectively prevented, and the stability of a pipeline is fully ensured, and the load of the pipeline is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; while the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications may be made to the techniques described in the foregoing embodiments, or that certain features may be substituted for those illustrated therein; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The one-way valve is characterized by comprising a valve body, a valve cover, a valve plate and a valve core, wherein the valve cover is sealed and detachably fixed on the top of the valve body, the valve plate is arranged between the valve body and the valve cover, the valve core is sealed and movably arranged in the valve body, a first concave cavity is formed in the center of the top of the valve body, a liquid inlet cavity is formed in the center of the bottom surface of the first concave cavity, a second concave cavity is formed in the center of the bottom of the valve cover, a liquid outlet cavity is formed in the center of the bottom surface of the second concave cavity, the valve plate is embedded in the first concave cavity and the second concave cavity, guide holes are formed in the center of the valve plate, a plurality of guide holes uniformly distributed on the periphery of the guide holes in the circumferential direction at equal angles are formed in the valve plate, a first extension part is formed downwards at the bottom of the valve body, a liquid inlet hole is formed between the center of the bottom surface of the liquid inlet cavity and the outer wall of the end of the first extension part, the valve core is movably arranged in the liquid inlet hole, a first sealing ring is sleeved outside the valve core, the outer diameter of the first sealing ring is larger than the outer diameter of the valve core, and the outer wall of the first sealing ring is in a sliding fit on the inner wall of the liquid inlet hole; the outer side edge of the top of the valve core is outwards provided with an annular flange, the annular flange is movably arranged in the liquid inlet cavity, the top center of the valve core is upwards provided with a vertically arranged boss, the end center of the boss is upwards provided with a vertically arranged limit column, the end center of the limit column is upwards provided with a vertically arranged guide column, the guide column is inserted and arranged in the guide hole, springs are sleeved outside the limit column and the guide column, the upper ends of the springs are tightly propped against the bottom of the valve plate, and the lower ends of the springs are tightly propped against the end parts of the boss; a plurality of deflection preventing rods which are uniformly arranged along the circumferential direction at equal angles are downwards formed at the outer side edge of the bottom of the valve core, and the outer walls of the deflection preventing rods are all in sliding fit with the inner wall of the liquid inlet hole; the top center of the valve cover upwards forms a second extension part, and a liquid outlet hole is formed between the bottom center of the liquid outlet cavity and the outer wall of the end part of the second extension part.

2. The one-way valve according to claim 1, wherein a first annular conical surface is formed at the edge of the top opening of the liquid inlet hole, and a second annular conical surface is formed at the edge of the bottom opening of the liquid outlet hole.

3. The one-way valve according to claim 2, wherein a first annular flange is formed outwards at the top outer side edge of the valve body, a second annular flange is formed outwards at the bottom outer side edge of the valve cover correspondingly, the bottom of the second annular flange is attached to the top of the first annular flange, two arc-shaped hoops which are arranged diagonally and are detachably fixed to each other are further arranged outside the first annular flange and the second annular flange, arc-shaped grooves are formed in the inner wall of the arc-shaped hoops, and the edges of the first annular flange and the second annular flange are embedded in the two arc-shaped grooves so that the top of the valve body and the bottom of the valve cover are mutually pressed.

4. The one-way valve according to claim 3, wherein the top of the first annular flange is provided with first annular sealing grooves which are concentrically distributed, correspondingly, the bottom of the second annular flange is provided with second annular sealing grooves which are concentrically distributed, and a second sealing ring is further embedded between the first annular sealing grooves and the second annular sealing grooves.

5. The one-way valve according to claim 4, wherein two ends of the arc-shaped clamp are outwardly formed with a bending section, one of the bending sections is further formed with a transversely arranged internal thread bush, the other bending section is further provided with a through hole, and the internal thread bush or the through hole on one arc-shaped clamp is concentrically arranged with and matched with the through hole or the internal thread bush on the other arc-shaped clamp.

6. The one-way valve of claim 5, wherein the through holes in the two arcuate clamps are each further provided with a threaded bolt therethrough, and wherein threaded ends of the threaded bolts in one of the arcuate clamps are each inserted into an internally threaded sleeve threaded in the other arcuate clamp to secure the two arcuate clamps to one another.

7. The one-way valve according to claim 6, wherein the conical counter bore is formed in the bottom center of the valve plate, the bottom opening of the guide hole is concentric with and communicates with the bottom center of the conical counter bore, and an annular chamfer is formed at the edge of the bottom opening of the guide hole.