CN219994475U - Liquid return circuit breaker valve - Google Patents

Abstract

The utility model discloses a liquid return circuit breaker valve, which comprises a valve body, wherein a valve seat is arranged in the valve body, a supporting plate is arranged in the valve body, a guide post is integrally formed on one side of the supporting plate, a valve core matched with the valve seat is movably sleeved outside the guide post, a second spring is arranged between the guide post and the valve core, a plurality of sleeves which are distributed in an annular equidistant manner are fixedly connected on one side of the supporting plate, which is close to the valve core, a push rod is connected in a sliding manner, one end of the push rod extends to the outer side of the sleeve, a first spring is arranged between the push rod and the sleeve, one end of the push rod is connected with the valve core.

Description

Liquid return circuit breaker valve

Technical Field

The utility model relates to the technical field of valves, in particular to a liquid return circuit breaker valve.

Background

The liquid return circuit breaker valve is mainly used in a main loop of the hydraulic support, so that the liquid return circuit has certain back pressure to enhance the action stability of the whole system, and mainly comprises a valve body, a valve core, a valve seat, a connector, a spring and other parts.

Most of the existing liquid return circuit breaker valves only depend on a single spring to apply thrust to a valve core, so that the valve core and a valve seat are tightly attached to realize closing of the valve, liquid backflow is prevented, the single spring applies non-uniform thrust, the guiding effect of the valve core by the inner structure of the valve body is weaker, and after the valve is used for a long time, gaps are easily formed between the valve core and the valve seat, so that the liquid leakage condition occurs.

Disclosure of Invention

The utility model aims to provide a liquid return circuit breaker valve so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a liquid circuit breaker returns, includes the valve body, the inside of valve body is equipped with the disk seat, the internally mounted of valve body has the backup pad, one side integrated into one piece of backup pad has the guide post, the outside movable sleeve of guide post be equipped with disk seat matched with case, be equipped with the second spring between guide post and the case, one side fixedly connected with that the backup pad is close to the case is a plurality of sleeves that are annular equidistance and distribute, telescopic inside sliding connection has the push rod, just the one end of push rod extends to telescopic outside, the push rod with be equipped with first spring between the sleeve, the one end of push rod with the case is connected.

As a preferable mode of the utility model, the supporting plate is provided with a liquid passing through hole.

As a preferable scheme of the utility model, one end of the valve body is connected with a connector in a threaded manner.

As a preferable scheme of the utility model, a sealing ring is arranged on the outer side of the connector, and the sealing ring is positioned between the valve body and the connector.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the sleeve, the push rod and the first spring are arranged to uniformly apply thrust to the valve core, and the second spring applies thrust to the valve core from the central position, and meanwhile, the guide post, the push rod and the sleeve can perform double guide functions on the valve core, so that the valve core is ensured to be in uniform contact with the valve seat, and the situation that gaps exist to cause liquid leakage is avoided.

Drawings

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

fig. 2 is a schematic structural view of the support plate of the present utility model.

In the figure: 1. a valve body; 2. a connector; 3. a valve seat; 4. a valve core; 5. a support plate; 6. a liquid passing through hole; 7. a seal ring; 8. a push rod; 9. a first spring; 10. a sleeve; 11. a second spring; 12. and a guide post.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 2, the present utility model provides a technical solution: the utility model provides a liquid circuit breaker, including valve body 1, the inside of valve body 1 is equipped with disk seat 3, the internally mounted of valve body 1 has backup pad 5, backup pad 5 is used for providing the supporting role for guide post 12, one side integrated into one piece of backup pad 5 has guide post 12, guide post 12's outside movable sleeve is equipped with the case 4 with disk seat 3 matched with, be equipped with second spring 11 between guide post 12 and the case 4, one side fixedly connected with that backup pad 5 is close to case 4 is a plurality of sleeves 10 that are annular equidistance and distribute, sleeve 10's inside sliding connection has push rod 8, through setting up a plurality of sleeves 10, push rod 8 and first spring 9 can be even apply thrust to case 4, and second spring 11 is applied thrust to case 4 from the central point position, push rod 8 and sleeve 10 cooperation can play the guide effect to case 4 simultaneously, guide post 12 also can play the guide effect to case 4, realize the double guide effect to case 4, prevent case 4 from taking place the skew in the motion process, thereby ensure that case 4 and disk seat 3 evenly contacts, avoid there is the gap, and the liquid leakage, and one end of push rod 8 extends to sleeve 10 outside, and is equipped with first spring 8 between sleeve 8 and the outside of sleeve 8, the first spring 8 is connected with the case 4.

Wherein, the supporting plate 5 is provided with a liquid passing through hole 6, and the liquid passing through hole 6 is used for enabling liquid to flow through the supporting plate 5.

Wherein, the one end threaded connection of valve body 1 has connector 2.

Wherein, the outside of connector 2 is equipped with sealing washer 7, and sealing washer 7 is used for improving the leakproofness between connector 2 and the valve body 1, prevents that the liquid from revealing, and sealing washer 7 is located between valve body 1 and the connector 2.

Specifically, the first spring 9 applies thrust to the valve core 4 through the push rod 8, and due to the fact that the plurality of first springs 9 and the push rod 8 are arranged, thrust can be uniformly applied to the valve core 4, and the second spring 11 applies thrust to the valve core 4 from the central position, meanwhile, the push rod 8 and the sleeve 10 are matched to play a guiding role on the valve core 4, and the guiding role of the guide column 12 is added, so that the dual guiding role on the valve core 4 is realized, the valve core 4 is prevented from shifting in the moving process, the valve core 4 is ensured to be uniformly contacted with the valve seat 3, gaps are avoided, liquid leakage is avoided, and the sealing effect is improved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a liquid circuit breaker returns, includes valve body (1), the inside of valve body (1) is equipped with disk seat (3), its characterized in that: the inside mounting of valve body (1) has backup pad (5), one side integrated into one piece of backup pad (5) has guide post (12), the outside movable sleeve of guide post (12) be equipped with disk seat (3) matched with case (4), be equipped with second spring (11) between guide post (12) and case (4), one side fixedly connected with that backup pad (5) are close to case (4) is a plurality of sleeve (10) that are annular equidistance and distribute, the inside sliding connection of sleeve (10) has push rod (8), just the one end of push rod (8) extends to the outside of sleeve (10), push rod (8) with be equipped with first spring (9) between sleeve (10), the one end of push rod (8) with case (4) are connected.

2. A liquid return circuit breaker valve according to claim 1, characterized in that: the supporting plate (5) is provided with a liquid passing through hole (6).

3. A liquid return circuit breaker valve according to claim 1, characterized in that: one end of the valve body (1) is connected with a connector (2) in a threaded manner.

4. A liquid return circuit breaker valve according to claim 3 wherein: the outside of connector (2) is equipped with sealing washer (7), sealing washer (7) are located between valve body (1) and connector (2).