CN218582357U

CN218582357U - High-precision pressure-maintaining air valve

Info

Publication number: CN218582357U
Application number: CN202222833288.3U
Authority: CN
Inventors: 王泽华
Original assignee: Guangdong Huahui Technology Co ltd
Current assignee: Guangdong Huahui Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-07
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a high-precision pressure maintaining air valve, which relates to the technical field of inflation valve structures and comprises an air outlet pipeline, wherein the air outlet pipeline is arranged at one end of a valve body and is communicated with the interior of the valve body; the gas inlet pipeline is arranged at one end of the valve body and is communicated with the interior of the valve body, an integrated one-way valve is arranged between the gas inlet pipeline and the valve body, and the integrated one-way valve is used for preventing gas in the valve body from flowing backwards or leaking; wherein, integrated form check valve demountable installation is in the mouth of a pipe of admission line department. According to the utility model discloses a high accuracy pressurize pneumatic valve, the built-in integrated form check valve of valve body reduces the connection tolerance between check valve and the pneumatic valve, promotes the gas tightness of pneumatic valve, and reduces the connection between each part among the inflation system, and the connection tolerance is accumulative total in the reduction system, the whole gas tightness of hoisting system, hoisting system pressurize effect.

Description

High-precision pressure-maintaining air valve

Technical Field

The utility model relates to an inflation valve technical field, in particular to high accuracy pressurize pneumatic valve.

Background

Generally, in an inflation and exhaust system, air valves are sequentially arranged on an inflation pipeline between an air pump and an inflation device to enable air in the air pump to enter the inflation device, and the air valves are externally connected with various valves according to the inflation requirements of pipelines to enable the inflation system to have different functions. The pipeline needs to increase the pressurize function and increases one-way check valve in the inflation valve corresponding position promptly, realizes the effect of the pressurize of keeping the gas in the pipeline. The one-way valve can allow one-way flow of gas or liquid, preventing backflow or pressure drop of the fluid in the pipeline.

In the existing pneumatic field, an air valve and a check valve are combined to form an inflation system, and the pressure maintaining effect of a pipeline is realized by additionally adding the check valve. Each other is independent assembly body between pneumatic valve and the check valve, and there is connection tolerance in both connection backs inevitable, and along with the assembly body connection quantity of system's pipeline increases, the inside gas tightness of system is unstable more, and connection tolerance between each assembly body needs to be adjusted one by one, wastes time and energy, otherwise can influence the whole airtight performance of system.

Chinese invention ZL 201611015704.1 discloses a check valve in which a retainer is attached to a valve body in a state where an annular seal member is placed on a placement surface of the valve body, the annular seal member is sandwiched between a sandwiching portion of the retainer and the placement surface, and a negative pressure valve is attached to the retainer, whereby the annular seal member and the negative pressure valve can be separately assembled to the valve body by the retainer, and the check valve can be formed in a relatively simple structure and enhanced in airtightness by the annular seal member.

In the current pneumatic industry, the pump valve connecting technology is generally used for connecting a one-way valve and an air valve, the two valves belong to independent devices, the air tightness performance of the one-way valve is interfered along with the increase of the assembling quantity of independent parts, and the air tightness performance in a system is obviously reduced due to the accumulation of assembling tolerance of multiple parts.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving at least "check valve and the air valve that exists among the prior art and adopt independent part interconnect usually, junction between them forms tolerance, influences the pressurize effect of check valve. The technical problem that the assembly tolerance of multiple components in the air inflation system is accumulated, and the air tightness performance of the interior of the system is obviously reduced is solved. Therefore, the utility model provides a high accuracy pressurize pneumatic valve, check valve and air pump are integrated integratively, reduce both connection tolerance, promote the valve body gas tightness, and the airtight effectual of the inside check valve structure of air pump can effectively prevent system's gas leakage, the pressurize effect of lift system.

According to some embodiments of the utility model, the high-precision pressure maintaining air valve comprises a valve body, wherein an electromagnetic valve is arranged in the valve body and used for controlling the pipeline communication condition in the valve body; the method comprises the following steps:

the air outlet pipeline is arranged at one end of the valve body and is communicated with the interior of the valve body;

the gas inlet pipeline is arranged at one end of the valve body and is communicated with the interior of the valve body, an integrated one-way valve is arranged between the gas inlet pipeline and the valve body, and the integrated one-way valve is used for preventing gas in the valve body from flowing backwards or leaking;

the integrated one-way valve is detachably mounted at the pipe orifice of the air inlet pipeline.

According to the utility model discloses a some embodiments, including one-way chamber, one-way chamber set up in the nose end of admission line, one-way chamber with the inside intercommunication of valve body, one-way chamber is used for holding integrated form check valve.

According to some embodiments of the utility model, the internal diameter in one-way chamber is greater than the internal diameter of admission line is used for promoting integrated form check valve is airtight gas tightness during the valve body.

According to some embodiments of the utility model, integrated form check valve includes ball check valve and elastic component, ball check valve set up in one-way intracavity, the elastic component is located ball check valve with between the admission line, the elastic component is used for promoting ball check valve shutoff the through-hole of one-way chamber lateral wall.

According to some embodiments of the utility model, check ball valve is close to the one end of one-way chamber bottom is provided with the fretwork seat, the fretwork seat is used for preventing the shutoff of check ball valve the passageway of admission line, the fretwork seat with check ball valve integrated into one piece.

According to some embodiments of the utility model, the middle part of fretwork seat is inside sunken, the one end gomphosis of elastic component in the middle part depressed part of fretwork seat.

According to some embodiments of the present invention, the integrated check valve comprises a check valve seat, the check valve seat is detachably connected to the port of the one-way cavity, an air inlet hole is formed in the middle of the check valve seat, and the air inlet hole is communicated with the inside of the one-way cavity; when the air inlet is in a pressure maintaining state, the check ball valve blocks the air inlet; when in an inflation state, the check ball valve is close to the bottom of the one-way cavity, and the elastic piece is in a compression state.

According to some embodiments of the utility model, the ball check valve is far away the one end in one-way chamber is provided with the direction lug, the direction lug be used for with the inlet port gomphosis, the periphery of direction lug is inwards sunken, is used for the increase ball check valve with the area of contact of inlet port one side.

According to some embodiments of the utility model, the check valve seat with when one-way chamber is connected, the external diameter of check valve seat is less than the external diameter of admission line.

According to the utility model discloses a some embodiments, the check ball valve with the check valve seat all adopts the rubber material to make.

According to the utility model discloses a high accuracy guarantor's pneumatic valve has following beneficial effect at least: the integrated check valve is arranged in the valve body, so that the connection tolerance between the check valve and the air valve is reduced, the air tightness of the air valve is improved, the connection between all parts in the inflation system is reduced, the connection tolerance accumulation in the system is reduced, the integral air tightness of the system is improved, and the pressure maintaining effect of the system is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a high precision pressure maintaining valve according to an embodiment of the present invention;

FIG. 2 is a sectional view of the high-precision pressure-maintaining air valve of the embodiment of the present invention;

fig. 3 is a first schematic perspective view of a check ball valve and a check valve seat according to an embodiment of the present invention;

fig. 4 is a second schematic perspective view of a check ball valve and a check valve seat according to an embodiment of the present invention.

Reference numerals are as follows:

valve body 100, electromagnetic valve 110, air inlet pipeline 120, one-way cavity 121, air outlet pipeline 130,

The integrated check valve 200, the check ball valve 210, the hollowed seat 211, the guide projection 212, the elastic member 220, the check valve seat 230, and the air inlet hole 231.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A high precision pressure maintaining gas valve according to an embodiment of the present invention will be described with reference to fig. 1 to 4.

As shown in fig. 1-4, the high-precision pressure maintaining gas valve includes a valve body 100, a solenoid valve 110 is disposed in the valve body 100, the solenoid valve 110 is used for controlling the pipeline communication condition in the valve body 100, and the structure of the solenoid valve 110 in the valve body 100 and the principle that the solenoid valve 110 controls the pipeline communication condition of the valve body 100 are well known to those skilled in the art and will not be described in detail herein. Briefly, the solenoid valve 110 in the valve body 100 can magnetically control the movement of the iron block in the energized state, so as to achieve the communication or the closure of the internal pipeline of the valve body 100, and when the solenoid valve 110 is de-energized, the iron block is reset under the action of the spring, so as to close or communicate the channel of the valve body 100.

The valve body 100 includes an outlet pipe 130 and an inlet pipe 120, the outlet pipe 130 is disposed at one end of the valve body 100 and is communicated with the inside of the valve body 100, and the inlet pipe 120 is disposed at the other end of the valve body 100 and is communicated with the inside of the valve body 100. The solenoid valve 110 switches the operation state in the valve body 100 so that the outlet duct 130 and the inlet duct 120 are communicated or closed.

An integrated check valve 200 is disposed between the inlet pipe 120 and the valve body 100, and the integrated check valve 200 is used to prevent gas from flowing backwards or leaking from the valve body 100. Specifically, integrated form check valve 200 is integrated in the pneumatic valve, can reduce the connection tolerance of check valve and pneumatic valve, reduces the part connection quantity in the charging system, and every reduces everywhere the part connection, can reduce a connection tolerance, and higher integrated level can reduce the accumulation of tolerance, reduces the connection elasticity that the staff adjusted each part simultaneously, and labour saving and time saving promotes the gas tightness of system and can promote charging system's pressurize performance simultaneously. The air valve integrated with the integrated one-way valve 200 has the advantages that the one-way valve structure is arranged inside the air valve, so that the connection volume of the two parts is reduced, the connection tolerance between the two parts can be eliminated, the air tightness can only be better, and the pressure maintaining performance of the air valve is improved. And integrated form check valve 200 adopts detachable construction, and the pneumatic valve maintenance of later stage of being convenient for changes the part, and the dismouting is maintained simplyr.

In some embodiments of the present invention, as shown in fig. 1 and 2, including the one-way cavity 121, the one-way cavity 121 is disposed at the pipe orifice end of the air inlet pipe 120, the one-way cavity 121 is communicated with the inside of the valve body 100, and the one-way cavity 121 is used for accommodating the integrated one-way valve 200. Specifically, the one-way cavity 121 is disposed at one end of the port of the air inlet pipe 120, and the one-way cavity 121 takes the inner wall of the air inlet pipe 120 as a cavity wall, so that the installation tolerance of the integrated one-way valve 200 is reduced.

In a further embodiment, as shown in fig. 2, the inner diameter of the check cavity 121 is larger than the inner diameter of the air inlet duct 120 for improving airtightness when the integrated check valve 200 closes the valve body 100. Specifically, when gas enters the one-way cavity 121 and enters the valve body 100 through the channel of the gas inlet pipe 120, the diameter of the channel is reduced from large to small, and the gas loss rate caused by the backflow of the gas in the valve body 100 can be reduced. And the diameter of the channel for communicating the air inlet pipeline 120 and the valve body 100 is smaller than that of the one-way cavity 121, so that the integrated one-way valve 200 can conveniently block the channel for communicating the air inlet pipeline 120 and the valve body 100, the integral air tightness is improved, and the pressure maintaining effect is better.

In some embodiments of the present invention, as shown in fig. 1 and 2, the integrated check valve 200 includes a check ball valve 210 and an elastic member 220, the check ball valve 210 is disposed in the one-way cavity 121, the elastic member 220 is located between the check ball valve 210 and the air inlet pipe 120, and the elastic member 220 is used for pushing the check ball valve 210 to block the through hole of the side wall of the one-way cavity 121. Specifically, the elastic member 220 is a spring, the spring is located between the air inlet pipe 120 and the check ball valve 210, when the air valve inflates, air enters from the one-way cavity 121 and enters into the valve body 100, the air pushes the check ball valve 210 to move towards the bottom of the one-way cavity 121, the elastic member 220 is pushed by the moving check ball valve 210 to be compressed, and the elastic potential energy of the elastic member 220 is increased. When the air valve is in the pressure maintaining state, no air enters the air inlet pipeline 120 at this time, the air action and the external force of the check ball valve 210 disappear, the elastic potential energy of the elastic member 220 is released, the elastic member 220 recovers deformation, the elastic member 220 pushes the check ball valve 210 to move towards the air inlet of the one-way cavity 121, and the check ball valve 210 blocks the air inlet of the one-way cavity 121, so that the air is trapped inside the valve body 100, and the pressure maintaining is realized.

In a further embodiment, as shown in fig. 2 to 4, a hollow seat 211 is disposed at one end of the check ball valve 210 close to the bottom of the one-way cavity 121, the hollow seat 211 is used for preventing the check ball valve 210 from blocking the channel of the air inlet pipe 120, and the hollow seat 211 and the check ball valve 210 are integrally formed.

Specifically, the one end that fretwork seat 211 is close to the admission line 120 passageway is provided with a plurality of pillars, and the pillar is arranged along the periphery interval of fretwork seat 211, and when the pneumatic valve was in the gas filled state, gaseous promotion check ball valve 210 was close to one-way chamber 121 bottom, when the fretwork seat 211 pillar of check ball valve 210 contacted with the bottom in one-way chamber 121, the position of check ball valve 210 no longer removed, and gaseous entering admission line 120's passageway in can following the pillar clearance of fretwork seat 211 this moment. The hollow seat 211 is mainly used to prevent the ball check valve 210 from being close to the bottom of the one-way cavity 121 in the inflated state to block the passage of the air inlet pipe 120.

In a further embodiment, as shown in fig. 2-4, the middle of the hollow seat 211 is recessed inward, and one end of the elastic element 220 is embedded in the recessed portion of the hollow seat 211. Specifically, the middle part of the hollow seat 211 is recessed and can be embedded with one end of the elastic element 220, so that the check ball valve 210 is prevented from being separated from the elastic element 220 in the repeated movement process to cause the structural failure or the reduction of the function of the check valve of the air valve.

In some embodiments of the present invention, as shown in fig. 1-4, the integrated check valve 200 includes a check valve seat 230, the check valve seat 230 is detachably connected to the port of the one-way cavity 121, an air inlet hole 231 is disposed in the middle of the check valve seat 230, and the air inlet hole 231 is communicated with the inside of the one-way cavity 121. When in the pressure maintaining state, the check ball valve 210 blocks the air inlet hole 231; when in the inflated state, the ball check valve 210 is near the bottom of the one-way chamber 121 and the resilient member 220 is in a compressed state. Specifically, the check valve seat 230 is buckled with the port of the one-way cavity 121 to limit the elastic member 220 and the check ball valve 210 in the one-way cavity 121, so that the check ball valve 210 and the elastic member 220 are prevented from being pulled out of the valve body 100.

In a further embodiment, as shown in fig. 1 to 4, one end of the check ball valve 210, which is far away from the check cavity 121, is provided with a guide protrusion 212, the guide protrusion 212 is used for being engaged with the air intake hole 231, and the periphery of the guide protrusion 212 is recessed inwards for increasing the contact area of the check ball valve 210 and one side of the air intake hole 231. Specifically, the guiding protrusion 212 can play a guiding effect when the check ball valve 210 resets and blocks the air inlet hole 231, the guiding protrusion 212 is firstly aligned and embedded with the air inlet hole 231, and then the check ball valve 210 gradually closes and blocks the air inlet hole 231. The circumference of the guide protrusion 212 is recessed inward, the surface of the ball check valve 210 is exposed at the end surface of the gas inlet hole 231, and when gas enters from the gas inlet hole 231, the gas acts on the surface of the guide protrusion 212 and the ball check valve 210, increasing the contact area of the ball check valve 210 and the gas, and making the ball check valve 210 more easily pushed toward the bottom of the guide cavity.

In some embodiments of the present invention, when the check valve seat 230 is connected to the one-way cavity 121, the outer diameter of the check valve seat 230 is smaller than the outer diameter of the air inlet pipe 120. Specifically, after the check valve seat 230 is connected to the one-way cavity 121, the overall outer diameter of the air inlet pipe 120 is unchanged, and the soft rubber air pipe can still be normally connected to the air inlet pipe 120. The pipeline connection universality of the air valve is ensured, the existing pipeline valve body 100 of the inflation system can be directly replaced, and the system maintenance and replacement cost is reduced.

In some embodiments of the present invention, the check ball valve 210 and the check valve seat 230 are made of rubber. Specifically, since the rubber material has good deformability, when the check ball valve 210 and the check valve seat 230 are in contact connection, the connection gap therebetween can be filled under the deformation effect of the rubber material. The pressure maintaining effect of the air valve is better.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-precision pressure maintaining air valve comprises a valve body (100), wherein an electromagnetic valve (110) is arranged in the valve body (100), and the electromagnetic valve (110) is used for controlling the communication condition of a pipeline in the valve body (100); it is characterized by comprising:

the air outlet pipeline (130) is arranged at one end of the valve body (100) and is communicated with the interior of the valve body (100);

the gas inlet pipeline (120) is arranged at one end of the valve body (100) and communicated with the interior of the valve body (100), an integrated one-way valve (200) is arranged between the gas inlet pipeline (120) and the valve body (100), and the integrated one-way valve (200) is used for preventing gas in the valve body (100) from flowing backwards or leaking;

wherein the integrated one-way valve (200) is detachably mounted at the nozzle of the air inlet pipeline (120).

2. The high-precision pressure-maintaining air valve is characterized by comprising a one-way cavity (121), wherein the one-way cavity (121) is arranged at the pipe orifice end of the air inlet pipeline (120), the one-way cavity (121) is communicated with the interior of the valve body (100), and the one-way cavity (121) is used for accommodating the integrated one-way valve (200).

3. A high precision pressure maintaining gas valve according to claim 2, characterized in that the inner diameter of the one-way cavity (121) is larger than the inner diameter of the gas inlet pipe (120) for improving the gas tightness of the integrated one-way valve (200) when the valve body (100) is sealed.

4. The high-precision pressure-maintaining gas valve according to claim 2, characterized in that the integrated one-way valve (200) comprises a check ball valve (210) and an elastic member (220), the check ball valve (210) is arranged in the one-way cavity (121), the elastic member (220) is positioned between the check ball valve (210) and the air inlet pipeline (120), and the elastic member (220) is used for pushing the check ball valve (210) to block a through hole in the side wall of the one-way cavity (121).

5. The high-precision pressure-maintaining air valve according to claim 4, characterized in that a hollow seat (211) is arranged at one end of the check ball valve (210) close to the bottom of the one-way cavity (121), the hollow seat (211) is used for preventing the check ball valve (210) from blocking the passage of the air inlet pipeline (120), and the hollow seat (211) and the check ball valve (210) are integrally formed.

6. The high-precision pressure-maintaining air valve as claimed in claim 5, wherein the hollow seat (211) has a central portion that is recessed, and one end of the elastic member (220) is engaged with the central portion of the hollow seat (211).

7. The high-precision pressure-maintaining air valve according to claim 4, characterized in that the integrated check valve (200) comprises a check valve seat (230), the check valve seat (230) is detachably connected with the port of the check cavity (121), an air inlet hole (231) is arranged in the middle of the check valve seat (230), and the air inlet hole (231) is communicated with the inside of the check cavity (121);

when the air inlet hole is in a pressure maintaining state, the check ball valve (210) blocks the air inlet hole (231); when in an inflated state, the ball check valve (210) is close to the bottom of the one-way cavity (121), and the elastic member (220) is in a compressed state.

8. The high-precision pressure-maintaining air valve according to claim 7, characterized in that one end of the check ball valve (210) far away from the one-way cavity (121) is provided with a guide projection (212), the guide projection (212) is used for being embedded with the air inlet hole (231), and the periphery of the guide projection (212) is recessed inwards for increasing the contact area of the check ball valve (210) and one side of the air inlet hole (231).

9. The high-precision pressure-maintaining air valve as claimed in claim 7, characterized in that when the check valve seat (230) is connected with the one-way cavity (121), the outer diameter of the check valve seat (230) is smaller than that of the air inlet pipeline (120).

10. The high-precision pressure-maintaining air valve according to any one of claims 7 to 9, characterized in that the check ball valve (210) and the check valve seat (230) are made of rubber.