CN220891185U

CN220891185U - Leak-proof one-way valve

Info

Publication number: CN220891185U
Application number: CN202322868682.5U
Authority: CN
Inventors: 胡永麟; 李国栋; 马荣胜
Original assignee: Huadian Luntai Thermal Power Co ltd
Current assignee: Huadian Luntai Thermal Power Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-05-03
Anticipated expiration: 2033-10-24

Abstract

The utility model is applicable to the technical field of check valves, and provides a leakage-proof check valve which comprises a channel, a valve seat and a valve cover, wherein the valve seat is arranged at one end of the channel, and the valve cover is arranged at the top end of the valve seat; the inside of passageway is provided with adjusting component, adjusting component includes regulation pole, piston, connecting rod, first sealing member and second sealing member. According to the anti-leakage one-way valve provided by the utility model, the valve core is adjusted through the arrangement of the adjusting rod, the piston and the connecting rod, and the valve core arranged in a shape of the spring and the circular table is matched with the first sealing element and the second sealing element, so that the one-way valve is controlled to be opened and closed by utilizing the pressure of material conveying, the one-way valve is ensured to be opened only when the pressure in the input direction is higher than the pressure in the output direction, the occurrence of a reverse flow condition is avoided, the sealing performance of the device is improved, and the possibility of material leakage is reduced.

Description

Leak-proof one-way valve

Technical Field

The utility model belongs to the technical field of check valves, and particularly relates to a leakage-proof check valve.

Background

The one-way valve is a one-way valve which is commonly called as a check valve or a check valve and is used for preventing the reverse flow of oil flow in a hydraulic system or the reverse flow of compressed air in a pneumatic system, wherein the fluid can only flow along the water inlet, but the water outlet medium cannot flow back.

The utility model of China patent application No. CN202122711130.4 discloses a leakage-proof one-way valve, which comprises a channel, a through hole, a valve rod, a signal transmitter and a motor, wherein rubber sealing rings are symmetrically fixed at two ends of the channel, the top of the valve rod penetrating through the channel is connected with an opening and closing piece, and the opening and closing piece is rotatably connected to the middle part inside the channel. This prevent check valve that leaks, the passageway can be fixed on required pipeline under rubber sealing ring and outside bolt's effect, easy to assemble, rubber sealing ring can play sealed effect of preventing leaking, the in-process that liquid flows from left to right in the passageway, the filter screen can carry out filtration to liquid, the circulation of steerable liquid is whether and the size of circulation volume when holding the valve rod and rotating the piece, perhaps the collocation uses signal transmitter and external control system to control the operation of motor, first gear can rotate under the effect of motor this moment to drive the second gear and rotate, the piece rotates along with the valve rod, the rotation of convenient long-range electric control piece of opening and close.

When the device of the prior patent is used, the counter-current prevention effect is achieved by utilizing the cooperation of the rotating plate and the stop block, but the device is provided with homopolar magnets for preventing the collision of the rotating plate and the stop block, so that a gap possibly exists between the rotating plate and the stop block, and the counter-current prevention effect is further affected to a certain extent.

Disclosure of utility model

The utility model provides a leakage-proof one-way valve, which aims to solve the problem that a gap possibly exists between a rotating plate and a stop block, so that a certain influence is caused on a backflow-proof effect.

The utility model is realized in such a way that the one-way valve for preventing leakage comprises a channel, a valve seat and a valve cover, wherein one end of the channel is provided with the valve seat, and the top end of the valve seat is provided with the valve cover; an adjusting component is arranged in the channel and comprises an adjusting rod, a piston, a connecting rod, a first sealing piece and a second sealing piece; the adjusting rod is arranged at the top end of the valve cover, the adjusting rod is in threaded connection with the valve cover, the bottom end of the adjusting rod is rotationally connected with a piston, the bottom end of the piston is connected with a connecting rod, a valve core is sleeved outside the connecting rod, and a first sealing element and a second sealing element are arranged on the inner side wall of the channel.

Preferably, the adjusting assembly further comprises a cross bracket, a loop bar, a guide bar and a spring; the cross support is connected to one end of the valve seat, springs are symmetrically connected to the top end of the cross support, and the top end of each spring is connected with the bottom end of the valve core; the bottom of case is connected with the guide bar, the top of cross support is connected with the loop bar, the bottom of guide bar runs through the loop bar.

Preferably, the cross section of connecting rod is T font setting, the recess with connecting rod assorted is seted up on the top of case.

Preferably, the cross section of the valve core is in a truncated cone shape, and one ends of the first sealing element and the second sealing element are matched with the bevel edge of the valve core.

Preferably, a sealing ring is sleeved outside the piston, and a sealing ring is sleeved outside the valve core.

Preferably, one end of the channel is connected with a pressure gauge, and the pressure gauge is arranged at one end of the top of the channel, which is close to the second sealing element.

Compared with the prior art, the embodiment of the application has the following main beneficial effects:

Through setting up of adjusting pole and piston and connecting rod, adjust the case to through the case of spring and round platform form setting, cooperation first sealing member and second sealing member utilize the pressure control check valve of material transportation's start and stop, ensure that the check valve is only opened when input direction pressure is greater than output direction pressure, avoid taking place the adverse current condition, improved the leakproofness of device, reduced the possibility that the material leaked.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic elevational cross-sectional view of the present utility model;

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

In the figure: 1. a channel; 2. a valve seat; 3. a valve cover; 4. an adjustment assembly; 41. an adjusting rod; 42. a piston; 43. a connecting rod; 44. a first seal; 45. a second seal; 46. a cross bracket; 47. a loop bar; 48. a guide rod; 49. a spring; 410. a valve core; 5. a pressure gauge.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The embodiment of the utility model provides a leakage-proof one-way valve, which comprises a channel 1, a valve seat 2 and a valve cover 3, wherein one end of the channel 1 is provided with the valve seat 2, and the top end of the valve seat 2 is provided with the valve cover 3; an adjusting assembly 4 is arranged in the channel 1, and the adjusting assembly 4 comprises an adjusting rod 41, a piston 42, a connecting rod 43, a first sealing piece 44 and a second sealing piece 45; the adjusting rod 41 is arranged at the top end of the valve cover 3, the adjusting rod 41 is in threaded connection with the valve cover 3, a piston 42 is rotationally connected to the bottom end of the adjusting rod 41, a connecting rod 43 is connected to the bottom end of the piston 42, a valve core 410 is sleeved outside the connecting rod 43, and a first sealing element 44 and a second sealing element 45 are arranged on the inner side wall of the channel 1.

It should be noted that, when the equipment of the prior patent is in use, the cooperation of the rotating plate and the stop block is utilized to achieve the effect of preventing countercurrent, but the device is provided with homopolar magnets for preventing the collision of the rotating plate and the stop block, so that a gap possibly exists between the rotating plate and the stop block, the sealing performance of the device is improved, the situation of countercurrent leakage is avoided, and the unidirectional conveying is ensured through the arrangement of the adjusting component 4, so that the sealing performance of the device is improved.

Specifically, in this embodiment, the present solution mainly includes a channel 1, a valve seat 2, a valve cover 3, and an adjusting component 4, and the position of a valve element 410 is adjusted by using an adjusting rod 41, a piston 42, and a connecting rod 43 of the adjusting component 4, and the valve element 410 is matched with a first sealing element 44 and a second sealing element 45 to realize on-off adjustment of the device and control the flow of a conveyed substance.

In a further preferred embodiment of the present utility model, as shown in fig. 2-3, the adjusting assembly 4 further comprises a cross bracket 46, a loop bar 47, a guide bar 48 and a spring 49; the cross support 46 is connected to one end of the valve seat 2, springs 49 are symmetrically connected to the top end of the cross support 46, and the top end of each spring 49 is connected to the bottom end of the valve core 410; the bottom end of the valve core 410 is connected with a guide rod 48, the top end of the cross support 46 is connected with a sleeve rod 47, and the bottom end of the guide rod 48 penetrates through the sleeve rod 47.

In this embodiment, the setting of the cross support 46 and the spring 49 is utilized to support the valve core 410 in an auxiliary manner, when the material flows from the first sealing member 44 to the second sealing member 45, the valve core 410 moves downwards under the pressure effect, so that the material passes through, and when the conveying operation is stopped, the spring 49 drives the valve core 410 to reset in time, the material is prevented from countercurrent phenomenon, the displacement track of the valve core 410 is limited by utilizing the cooperation of the sleeve rod 47 and the guide rod 48, the valve core 410 is prevented from deviating to generate a gap, and the tightness of the device is ensured.

In a further preferred embodiment of the present utility model, the cross section of the connecting rod 43 is T-shaped, and a groove matching with the connecting rod 43 is formed at the top end of the valve core 410.

In this embodiment, the connecting rod 43 with a T-shape is matched with the groove at the top of the valve core 410, so that the valve core 410 and the connecting rod 43 are slidably arranged, and the valve core 410 can be displaced under the action of pressure and separated from the first sealing element 44 and the second sealing element 45, thereby forming a feeding passage.

In a further preferred embodiment of the present utility model, the cross section of the valve element 410 is in a truncated cone shape, and one ends of the first sealing member 44 and the second sealing member 45 are matched with the bevel edge of the valve element 410.

In this embodiment, the bevel edge of the cone 410 is matched with the bevel edge of the first sealing element 44 and the bevel edge of the second sealing element 45, and a closing element is formed after the sealing element is tightly attached to control the opening and closing.

In a further preferred embodiment of the present utility model, a sealing ring is sleeved on the outer portion of the piston 42, and a sealing ring is sleeved on the outer portion of the valve element 410.

In the present embodiment, the provision of the seal ring improves the sealability between the piston 42 and the valve seat 2, prevents leakage, and improves the sealability between the valve body 410 and the first seal 44 and the second seal 45.

In a further preferred embodiment of the present utility model, a pressure gauge 5 is connected to one end of the channel 1, and the pressure gauge 5 is disposed at one end of the top of the channel 1 near the second sealing member 45.

In the embodiment, the pressure gauge is utilized to conveniently and intuitively indicate the internal pressure condition of the equipment, and the internal pressure condition is used as the pressure relief judgment basis of the device, so that the internal pressure condition can be conveniently found out in time and maintained.

It should be noted that, for simplicity of description, the foregoing embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present utility model is not limited by the order of acts, as some steps may be performed in other order or concurrently in accordance with the present utility model. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present utility model.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and such partitioning of the above-described elements may be implemented in other manners, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or communication connection shown or discussed as being between each other may be an indirect coupling or communication connection between devices or elements via some interfaces, which may be in the form of telecommunications or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims

1. The leakage-proof one-way valve is characterized by comprising a channel (1), a valve seat (2) and a valve cover (3), wherein the valve seat (2) is arranged at one end of the channel (1), and the valve cover (3) is arranged at the top end of the valve seat (2);

An adjusting assembly (4) is arranged in the channel (1), and the adjusting assembly (4) comprises an adjusting rod (41), a piston (42), a connecting rod (43), a first sealing piece (44) and a second sealing piece (45);

The adjusting rod (41) is arranged at the top end of the valve cover (3), the adjusting rod (41) is in threaded connection with the valve cover (3), a piston (42) is rotationally connected to the bottom end of the adjusting rod (41), a connecting rod (43) is connected to the bottom end of the piston (42), a valve core (410) is sleeved outside the connecting rod (43), and a first sealing element (44) and a second sealing element (45) are arranged on the inner side wall of the channel (1).

2. A leak-proof one-way valve as defined in claim 1, wherein said adjustment assembly (4) further comprises a cross bracket (46), a stem (47), a guide rod (48) and a spring (49);

The cross support (46) is connected to one end of the valve seat (2), springs (49) are symmetrically connected to the top end of the cross support (46), and the top end of each spring (49) is connected with the bottom end of the valve core (410);

The bottom of case (410) is connected with guide bar (48), the top of cross support (46) is connected with loop bar (47), loop bar (47) are run through to the bottom of guide bar (48).

3. The leakage-proof one-way valve according to claim 1, wherein the cross section of the connecting rod (43) is T-shaped, and the top end of the valve core (410) is provided with a groove matched with the connecting rod (43).

4. A leak-proof one-way valve as defined in claim 1, wherein said valve element (410) is provided in a truncated cone-like cross section, and one ends of said first seal member (44) and said second seal member (45) are engaged with a sloping side of said valve element (410).

5. A leak-proof one-way valve as defined in claim 1, wherein the piston (42) is externally fitted with a sealing ring, and the valve element (410) is externally fitted with a sealing ring.

6. A leak-proof one-way valve according to claim 1, characterized in that one end of the channel (1) is connected with a pressure gauge (5), said pressure gauge (5) being arranged at the top of the channel (1) near one end of the second sealing member (45).