CN215721052U - Vacuumizing exhaust one-way valve device - Google Patents

Abstract

The utility model relates to a vacuumizing exhaust one-way valve device, which comprises a main body fastener for connecting a piston cylinder and an air chamber to be vacuumized, wherein a through switch mechanism capable of enabling a vent cavity and a vent channel to be communicated or sealed is arranged on the main body fastener; compared with the existing product, the vacuumizing exhaust check valve device has the advantages of fewer parts, simplified assembly, simple use process, good use effect and convenience in carrying.

Description

Vacuumizing exhaust one-way valve device

Technical Field

The utility model relates to the technical field of vacuumizing equipment, in particular to a vacuumizing exhaust one-way valve device.

Background

The vacuum pumping technology is applied to various industries, and how to conveniently, efficiently and simply finish the vacuum pumping operation is always an important link for the development of the vacuum pumping technology. At present, vacuum-pumping instruments and equipment have a plurality of defects, and particularly, the convenience, operation advisability and portability of the vacuum-pumping instruments and equipment need further design optimization. The traditional check valve is usually of a flap type or a hinge type. The connection between the valve core and the valve seat is close to a movable pin shaft, and the movable pin shaft is easy to rust, so that the movable pin shaft is often separated, the valve core is separated, or the valve core is jammed to influence the reset; and the installation position of the pipeline is limited, and the pipeline can only be installed transversely and cannot be installed vertically or laterally.

The existing air suction sucker realizes vacuum adsorption of the ceramic tile by the structure commonly, but the rotation of a lever body of an industrial-grade vacuum sucker switch on the market at present is realized by a rotating shaft, and the structure of a memory opening and closing sheet communicated or sealed with an air chamber to be vacuumized is complex, has more parts and is difficult to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vacuumizing exhaust one-way valve device aiming at the problems of poor convenience and operation simplicity of the existing vacuumizing equipment.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides an evacuation exhaust check valve device, includes a main part fastener that is used for connecting a piston section of thick bamboo and treats the evacuation air chamber, be equipped with on the main part fastener and enable to ventilate the chamber and the passageway of ventilating is in intercommunication or confined penetrating on-off mechanism, penetrating on-off mechanism including fixed memory nature the piece that sets up on the main part fastener, memory nature the piece of opening and shutting can be opened to one side bullet of the passageway of ventilating dorsad, the main part fastener on still be equipped with disappointing part, seted up the mouth of leaking gas on the connector, the mouth of leaking gas communicates with the passageway of ventilating.

The part of disappointing include the lever body, the centre of the lever body is rotated and is set up on the main part fastener, is equipped with the elastic component between the one end of the lever body and the main part fastener, the one end of the lever body is equipped with the sprue towards one side of disappointing the mouth, the elastic component has the trend of outwards popping out its and the contact position of the lever body when not receiving external force, the sprue extrudees in order to plug up disappointing the mouth to one side of connector under this condition simultaneously.

The piston comprises a piston cylinder with a cavity, a piston body movably arranged in the cavity of the piston cylinder, a main body fastener fixedly arranged at one end of the piston cylinder and a driving assembly for driving the piston body to move back and forth; the piston body divides the cavity into an inner cavity and an outer cavity, a connecting body used for being connected with the air chamber to be vacuumized is arranged on the main body fastener, a vent cavity and a vent channel which are mutually communicated are arranged in the main body fastener, the vent channel is arranged on the connecting body and is communicated with the inner cavity, and the vent channel is communicated with the air chamber after the connecting body is connected with the air chamber to be vacuumized; the piston body is provided with a through cavity switch mechanism which can enable the inner cavity and the outer cavity to be communicated or sealed, and the main body fastener is provided with a through switch mechanism which can enable the ventilation cavity and the ventilation channel to be communicated or sealed.

In the above vacuum pumping exhaust check valve device, the cavity opening and closing mechanism comprises a middle through hole, a large through hole and a small through hole which are sequentially arranged on the piston body and are communicated with each other, a baffle plate is movably arranged in the large through hole and cannot be separated from the large through hole, a leak hole is eccentrically arranged on the baffle plate, the distance from the leak hole to the center of the baffle plate is smaller than the radius of the middle through hole but larger than the radius of the small through hole, when the baffle plate is attached to the small through hole, the baffle plate can be plugged to enable the inner cavity and the outer cavity to be relatively closed, and when the baffle plate is separated from the small through hole, the inner cavity and the outer cavity are communicated through the leak hole.

In the above vacuum exhaust check valve device, the driving assembly includes a linear driving member for independently driving the piston body to move, and the first linear driving member is fixed to the piston cylinder.

In the above vacuum pumping and exhausting check valve device, a main body sealing ring is arranged at the connecting edge of the main body fastener and the piston body.

Compared with the prior art, the vacuum pumping exhaust check valve device has the advantages that the number of parts is small, the assembly is simplified, the using process is simple, the using effect is good, and the carrying is very convenient and fast compared with the existing products.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the vacuum exhaust check valve device;

FIG. 2 is a schematic cross-sectional view of the vacuum exhaust check valve device after the drive assembly is hidden;

FIG. 3 is a schematic view of the main body fastener after the memory opening/closing sheet is taken out;

FIG. 4 is a schematic view of a body fastener;

in the figure, 1, a piston cylinder; 2. a piston body; 3. a body fastener; 4. an inner cavity; 5. an outer cavity; 6. an air chamber; 7. a linker; 8. a vent lumen; 9. a vent passage; 10. a central through hole; 11. a large through hole; 12. a small through hole; 13. a baffle plate; 14. a leak hole; 15. a memory opening and closing sheet; 16. an air escape opening; 17. a lever body; 18. an elastic member; 19. and (7) blocking.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and fig. 2, the vacuum exhaust check valve device comprises a piston cylinder 1 with a chamber, a piston body 2 movably arranged in the chamber of the piston cylinder 1, a body fastener 3 fixedly arranged at one end of the piston cylinder 1, and a driving assembly for driving the piston body 2 to move back and forth; the cavity is divided into an inner cavity 4 and an outer cavity 5 by the piston body 2, a connecting body 7 used for being connected with an air chamber 6 to be vacuumized is arranged on the main body fastener 3, a vent cavity 8 and a vent channel 9 which are mutually communicated are arranged in the main body fastener 3, the vent channel 9 is arranged on the connecting body 7, the vent cavity 8 is communicated with the inner cavity 4, and the vent channel 9 is communicated with the air chamber 6 after the connecting body 7 is connected with the air chamber 6 to be vacuumized; the piston body 2 is provided with a through cavity switch mechanism which can enable the inner cavity 4 and the outer cavity 5 to be communicated or closed, and the main body fastener 3 is provided with a through switch mechanism which can enable the ventilation cavity 8 and the ventilation channel 9 to be communicated or closed.

Wherein:

as shown in fig. 2, the through-cavity switch mechanism comprises a middle through hole 10, a large through hole 11 and a small through hole 12 which are sequentially arranged on the piston body 2 and are communicated with each other, a baffle plate 13 is movably arranged in the large through hole 11, the baffle plate 13 cannot be separated from the outside of the large through hole 11, a leak hole 14 is eccentrically arranged on the baffle plate 13, the distance from the leak hole 14 to the center of the baffle plate 13 is smaller than the radius of the middle through hole 10 but larger than the radius of the small through hole 12, when the baffle plate 13 is attached to the small through hole 12, the baffle plate 13 can be plugged to enable the inner cavity 4 and the outer cavity 5 to be relatively closed, and when the baffle plate 13 is separated from the small through hole 12, the inner cavity 4 and the outer cavity 5 are communicated through the leak hole 14.

The drive assembly comprises a linear drive for independently driving the movement of the piston body 2, which linear drive is fixed to the piston cylinder 1.

As shown in fig. 2 and 3, the through switch mechanism includes a memory opening/closing sheet 15 fixedly disposed on the main body fastener 3, and the memory opening/closing sheet 15 can be sprung open to a side away from the ventilation channel 9.

As shown in fig. 2, still be equipped with the part of disappointing on the main part fastener 3, the mouth of disappointing 16 has been seted up on the connecting body 7, the mouth of disappointing 16 communicates with ventilation channel 9, the part of disappointing includes the lever body 17, the centre of the lever body 17 is rotated and is set up on main part fastener 3, be equipped with elastic component 18 between the one end of the lever body 17 and the main part fastener 3, the one end of the lever body 17 is equipped with sprue 19 towards one side of the mouth of disappointing 16, elastic component 18 has the trend of outwards popping out its and lever body 17's contact position when not receiving external force, sprue 19 extrudees in order to stop up the mouth of disappointing 16 to one side of connecting body 7 under this condition simultaneously.

The operation principle of the device is as follows:

connecting the connecting body 7 to the air chamber 6 to be vacuumized:

first, for convenience of explanation, the inner chamber 4 and the ventilation chamber 8 are defined as a first independent chamber, and the air passage 9 and the air chamber 6 are defined as a second independent chamber;

then the piston body 2 is pushed to one side of the main body fastener 3, because the air pressure in the first independent chamber rises relative to the outer chamber 5 at the moment, the baffle plate 13 is also pushed to the direction of the outer chamber 5 under the pressure difference, and the memory opening and closing plate 15 closes the ventilation channel 9 under the action of the air pressure, so that the air in the first independent chamber can be transferred to the outer chamber 5;

then the piston body 2 moves towards the outer cavity 5 in a homing way, at the moment, because the volumes of the inner cavity 4 and the vent cavity 8 are enlarged, the pressure of a first independent cavity formed by the inner cavity and the vent cavity is reduced, and the air pressure of the outer cavity 5 is higher than that of the first independent cavity, the baffle plate 13 is attached to the piston body 2, and the air in the outer cavity 5 can not enter the first independent cavity; the air pressure in the second independent chamber is higher than that in the first independent chamber, the memory opening and closing sheet 15 can be flushed by the relatively high-pressure air in the second independent chamber, so that the first independent chamber is communicated with the second independent chamber, the air pressures of the memory opening and closing sheet 15 are balanced after the second independent chamber moves enough air to the first independent chamber, the memory opening and closing sheet 15 is not stressed and returns to the original position, the first independent chamber and the second independent chamber are automatically sealed and separated, and at the moment, part of air in the second independent chamber (mainly the air chamber 6) can be known to be divided into the first independent chamber, so that the air in the air chamber 6 is reduced (the extraction effect is completed);

then the piston body 2 is moved to the side closest to the body fastener 3, the gas in the first independent chamber is compressed in the process, the gas pressure is gradually increased, after the gas pressure is larger than the outer chamber 5, the baffle plate 13 is pushed away from the piston body 2, and the gas is transferred from the first independent chamber to the outer chamber 5, so that the gas quantity in the first independent chamber is reduced (the main purpose is to reduce the volume of the first independent chamber and further reduce the gas quantity);

after the above operations are repeated for several times, the gas in the gas chamber 6 will be less and less, that is, the effect of gradually vacuumizing is performed, and the vacuum is gradually approached after each repeated operation.

Then, after the user has finished using the air chamber 6, the connecting element is difficult to be pulled out from the air chamber 6 due to the external atmospheric pressure, and at this time, the user only needs to press one side of the elastic element 18 of the lever to open the block 19 relative to the air release opening 16, so that the external air is flushed into the air chamber 6 for compensation, and then the connecting element can be pulled out.

The design of the lever is taken as the name, because the blockage 19 is difficult to be pulled and the connecting piece is difficult to be pulled, the direction and the force of the force are changed by adopting the lever principle, and the air chamber 6 is conveniently communicated with the outside.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims (6)

1. The utility model provides an evacuation exhaust check valve device which characterized in that: including a main part fastener that is used for connecting a piston section of thick bamboo and treats evacuation air chamber, be equipped with on the main part fastener and enable to ventilate the chamber and be in intercommunication or confined penetrating on-off mechanism with the passageway of ventilating, penetrating on-off mechanism including the fixed memory nature piece that opens and shuts that sets up on the main part fastener, memory nature piece that opens and shuts can be opened and shut to one side bullet of the passageway of ventilating dorsad, the main part fastener on still be equipped with the part of disappointing, seted up the mouth that loses heart on the connector, the mouth that loses heart and the passageway intercommunication of ventilating.

2. The evacuation exhaust check valve device according to claim 1, wherein: the component loses heart including the lever body, the centre of the lever body rotates and sets up on the main part fastener, is equipped with the elastic component between the one end of the lever body and the main part fastener, the one side of the one end orientation disappointing mouth of the lever body is equipped with the sprue.

3. The evacuation exhaust check valve device according to claim 1 or 2, wherein: the vacuum exhaust one-way valve device also comprises a piston cylinder with a cavity, a piston body movably arranged in the cavity of the piston cylinder and a driving component for driving the piston body to move back and forth; the piston body divides the cavity into an inner cavity and an outer cavity, a connecting body used for being connected with the air chamber to be vacuumized is arranged on the main body fastener, a vent cavity and a vent channel which are mutually communicated are arranged in the main body fastener, the vent channel is arranged on the connecting body and is communicated with the inner cavity, and the vent channel is communicated with the air chamber after the connecting body is connected with the air chamber to be vacuumized; the piston body is provided with a through cavity switch mechanism which can enable the inner cavity and the outer cavity to be communicated or closed.

4. The evacuation exhaust check valve device according to claim 3, wherein: the through cavity switch mechanism comprises a middle through hole, a large through hole and a small through hole which are sequentially arranged on the piston body and are mutually communicated, a blocking piece is movably arranged in the large through hole and cannot be separated from the outside of the large through hole, a leakage hole is eccentrically arranged on the blocking piece, the distance from the leakage hole to the center of the blocking piece is smaller than the radius of the middle through hole but larger than the radius of the small through hole, the blocking piece is blocked when being attached to the small through hole so that the inner cavity and the outer cavity are relatively closed, and the inner cavity and the outer cavity are communicated through the leakage hole when the blocking piece is separated from the small through hole.

5. The evacuation exhaust check valve device according to claim 3, wherein: the driving assembly comprises a linear driving piece used for independently driving the piston body to move, and the linear driving piece is fixed on the piston cylinder.

6. The evacuation exhaust check valve device according to claim 1 or 5, wherein: and a main body sealing ring is arranged at the connecting edge of the main body fastener and the piston body.

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