CN113998307A

CN113998307A - Vacuum tank and vacuum tank assembly

Info

Publication number: CN113998307A
Application number: CN202111334447.9A
Authority: CN
Inventors: 杨立义; 余先杰; 葛书发; 刘肖
Original assignee: Guangdong Liyea Technologies Co ltd
Current assignee: Guangdong Liyea Technologies Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-02-01

Abstract

The invention discloses a vacuum tank and a vacuum tank assembly, wherein the vacuum tank comprises a tank body, a tank cover, a lifting handle and a first sealing ring arranged between the tank body and the tank cover, the tank cover is provided with an air exhaust hole, the lifting handle penetrates through the air exhaust hole, an air exhaust channel is reserved between the lifting handle and the inner side wall of the air exhaust hole, the upper part of the lifting handle is provided with a hand-held part, the lower part of the lifting handle is provided with a lifting lug for lifting the tank cover, and the lifting handle is provided with a sealing soft rubber sheet capable of sealing the upper port of the air exhaust channel; the vacuum tank assembly comprises a vacuum extractor and the vacuum tank. According to the vacuum tank, the lifting handle on the tank cover has the functions of the air exhaust one-way valve and the tank cover lifting handle, the functions are various, the simplification of the structure of the tank cover is facilitated, and the production cost is reduced.

Description

Vacuum tank and vacuum tank assembly

Technical Field

The invention relates to the technical field of vacuum tanks, in particular to a vacuum tank and a vacuum tank assembly.

Background

The vacuum tank, also called a vacuumized storage tank, is used for storing all articles which are easy to be affected with damp, oxidized and mildewed, and the sealing material generally adopts high-performance natural silica gel, so that a high vacuum state can be kept in the vacuum tank for a long time, and the functions of oxidation resistance, moisture resistance, moth resistance, mildew resistance and freshness preservation are achieved. The use method of the vacuum tank comprises the following steps: the vacuumizing device is arranged on a tank cover of the vacuum tank, is aligned with an air suction port on the tank cover and is sealed through a sealing ring, then, a vacuum pump in the vacuumizing device is started, and air in the tank can be sucked out through a one-way valve at the air suction port to form a vacuum state.

Traditional vacuum tank, extraction opening and handle on the cover are separately set up, and the handle only has the function of being convenient for carry and draw the opening cover, need two structures above the shaping respectively during production cover, and extraction opening department need set up a check valve, has improved the die sinking cost.

In addition, the existing tank cover and the tank body are generally sealed by a common O-shaped ring with a square or round section, and the sealing effect is poor; when the tank cover is covered, the tank cover can be tightly pressed and sealed by applying extra pressure, the situation that the tank cover is not tight can often occur, and then the interior of the tank body can not be vacuumized.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a vacuum tank, in which a handle is installed at an inflation opening in a matching manner, and which has functions of opening a tank cover by lifting and supplying a vacuum to perform one-way air suction.

The second objective of the present invention is to provide a vacuum tank assembly, which comprises the vacuum tank and the vacuum extractor.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the utility model provides a vacuum tank, includes a jar body, cover, handle and sets up the first sealing washer between jar body and cover, be provided with the aspirating hole on the cover, the handle runs through aspirating hole and handle and aspirating hole's inside wall between leave air exhaust channel, the upper portion of handle is provided with portable portion, the lower part of handle is provided with and is used for mentioning carrying of cover and draws the lug, be provided with on the handle and to support the sealed flexible glue piece of last port in order to seal air exhaust channel in the upper surface of cover.

In a preferred embodiment of the present invention, the lifting protrusion covers a lower port of the air exhaust channel, and an air guide channel communicated with the air exhaust channel is disposed between the lifting protrusion and a lower surface of the can lid.

In a preferred embodiment of the present invention, the lower surface of the lid is provided with a plurality of support blocks capable of abutting against the lift tab, and a space between different support blocks forms the air guide passage.

In a preferred embodiment of the present invention, the lower surface of the soft sealing film is provided with a plurality of annular ribs abutting against the upper surface of the tank cover.

In a preferred scheme of the invention, the hand-held part, the lifting lug and the sealing soft rubber sheet are of an integrated soft rubber structure, and the lifting handle is provided with a vertical blind hole so that the sealing soft rubber sheet can be driven to be separated from the upper surface of the tank cover when two sides of the hand-held part are extruded.

In a preferred embodiment of the present invention, a hard auxiliary pulling plate is detachably mounted inside the pulling lug.

In a preferred embodiment of the present invention, the air exhaust hole is a circular hole, the auxiliary lifting plate is a circular plate, and a diameter of the auxiliary lifting plate is greater than a diameter of the air exhaust hole.

In a preferred scheme of the invention, the vertical blind hole comprises a first blind hole with a downward opening, a clamping groove is arranged on the inner side wall of the first blind hole, and the auxiliary pulling plate is arranged in the clamping groove.

In a preferred embodiment of the present invention, the auxiliary pulling plate divides the first blind hole into an upper hole section and a lower hole section, and the auxiliary pulling plate is provided with a through hole for communicating the upper hole section and the lower hole section.

In a preferable scheme of the invention, the vertical blind hole further comprises a second blind hole with an upward opening, and the handle is provided with a partition board for separating the first blind hole from the second blind hole.

In a preferred embodiment of the present invention, a concave portion is disposed at the middle of the tank cover, the air suction hole is disposed at the bottom of the concave portion, and the hand-held portion and the soft sealing film are accommodated in the concave portion.

In a preferred embodiment of the present invention, the can cover is provided with an installation platform, the first sealing ring includes a sealing ring base clamped on the installation platform and a sealing edge disposed at a lower portion of the sealing ring base, a V-shaped groove with an outward opening is formed between the sealing edge and the sealing ring base, and the sealing edge is pressed against an upper end surface of the can body by gravity when the can cover is covered on the can body.

In a preferred scheme of the invention, the lower part of the tank cover is provided with a cylinder body, the lower part of the cylinder body is inserted into the upper port of the tank body, the mounting table is arranged on the outer side wall of the upper part of the cylinder body in a surrounding manner, the sealing ring base body is provided with a clamping groove with an inward opening, and the mounting table is clamped into the clamping groove and is in interference fit with the sealing ring base body.

In a preferred embodiment of the present invention, the thickness of the sealing edge gradually decreases from the fixed end to the free end thereof.

The utility model provides a vacuum tank assembly, includes vacuum pump and foretell vacuum tank, vacuum pump include the casing with set up in vacuum pump in the casing, the upper surface of cover is provided with the annular mounting groove that encircles the handle setting, the bottom of casing be provided with the cartridge in annular base in the annular mounting groove, still be provided with annular second sealing washer between casing and the cover.

The invention has the beneficial effects that:

1. according to the vacuum tank, the lifting handle on the tank cover has the functions of the air exhaust one-way valve and the tank cover lifting handle, the functions are various, the simplification of the structure of the tank cover is facilitated, and the production cost is reduced.

2. Be provided with vertical blind hole on the handle, when jar internal in vacuum state, the user can adopt the mode of the hand portion of holding between the fingers to jar internal pressure release that carries out, makes outside air admission jar internal, jar internal and outside atmospheric pressure balance back, can portable handle in order to open the lid.

3. When the cover is installed on the tank body, the sealing edge can be pressed on the upper end surface of the tank body under the action of gravity of the cover, the hand piece and the first sealing piece, and sealing is automatically formed. When the tank body is in a vacuum state, the V-shaped groove is formed between the sealing edge and the sealing ring base body, so that the sealing edge is pressed downwards under the pressure of atmospheric pressure, the sealing ring base body is pressed upwards at the same time, the sealing ring base body is tightly attached to the lower surface of the mounting table, and the sealing edge is tightly attached to the upper end surface of the tank body, so that an excellent sealing effect is achieved.

Drawings

FIG. 1 is a cross-sectional view of a vacuum canister;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a perspective view of a can lid;

FIG. 4 is a perspective view of the handle;

FIG. 5 is an enlarged view of portion B of FIG. 1;

FIG. 6 is a cross-sectional view of a first seal ring;

FIG. 7 is a cross-sectional view of a vacuum canister assembly;

figure 8 is a cross-sectional view of the vacuum extractor.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 6, a vacuum tank includes a tank body 5, a tank cover 1, a handle 2 and a first sealing ring 6 disposed between the tank body 5 and the tank cover 1, the tank cover 1 is provided with an air exhaust hole 11, the handle 2 penetrates through the air exhaust hole 11 and an air exhaust channel 3 is left between the handle 2 and the inner side wall of the air exhaust hole 11, the upper portion of the handle 2 is provided with a hand-held portion 21, the lower portion of the handle 2 is provided with a lifting lug 22 for lifting the tank cover 1, and the handle 2 is provided with a sealing soft rubber sheet 23 capable of abutting against the upper surface of the tank cover 1 to seal the upper port of the air exhaust channel 3. The air exhaust passage 3 may be a gap between the handle 2 and the inner side wall of the air exhaust hole 11, a vertical groove formed in the handle 2, or a vertical groove formed in the inner side wall of the air exhaust hole 11.

In a specific scheme of the invention, a concave position 14 which is downwards concave is arranged in the middle of the tank cover 1, the air exhaust hole 11 is arranged at the bottom of the concave position 14, and the hand-held part 21 and the soft sealing film 23 are both accommodated in the concave position 14.

Referring to fig. 7 to 8, a vacuum tank assembly comprises a vacuum extractor 7 and the vacuum tank, wherein the vacuum extractor 7 comprises a housing 71 and a vacuum pump 72 arranged in the housing 71, an annular mounting groove 15 is formed in the upper surface of the tank cover 1, the concave portion 14 and the handle are both located in the area surrounded by the annular mounting groove 15, an annular base 711 inserted into the annular mounting groove 15 is arranged at the bottom of the housing 71, an annular second sealing ring 8 is further arranged between the housing 71 and the tank cover 1, and a closed space is formed between the vacuum extractor 7 and the tank cover 1 through the second sealing ring 8.

According to the vacuum tank, the tank cover 1 and the tank body 5 are sealed through the first sealing ring 6, and when the air pressure in the tank body 5 is balanced with the external air pressure, a user can open the tank cover 1 by holding the lifting handle 2. When the vacuum is applied by the vacuum pump 7, the vacuum pump 7 is installed in the annular installation groove 15, and a seal is formed between the vacuum pump 7 and the tank cover 1 by the second seal ring 8 at the bottom of the vacuum pump 7. Then, the vacuum pump 72 of the vacuum extractor 7 is started, namely, air between the vacuum extractor 7 and the tank cover 1 can be extracted, then, the space in the tank body 5 and the space in the concave position 14 form air pressure difference, so that the sealing soft film 23 is turned upwards and separated from the upper surface of the tank cover 1, and then, the air in the tank body 5 can be extracted; when the vacuum degree in the tank body 5 meets the requirement, the vacuum pump 72 is stopped, then the pressure relief valve 73 on the vacuumizing device 7 is opened, so that the space in the concave position 14 and the external space reach air pressure balance, in the process, the space in the tank body 5 and the space in the concave position 14 form air pressure difference again, the air pressure difference can enable the sealing soft film 23 to be downwards turned and tightly pressed on the upper surface of the tank cover 1, the upper port of the air suction channel 3 is sealed, and the vacuum environment in the tank body 5 can be kept.

In the scheme, the lifting handle 2 on the tank cover 1 has the functions of the air exhaust check valve and the lifting handle 2 of the tank cover 1, and the multifunctional tank cover has multiple functions, is favorable for simplifying the structure of the tank cover 1, and reduces the production cost.

In a preferred embodiment of the present invention, the lifting lug 22 shields the lower end of the evacuation channel 3, and a gas guide channel 4 communicating with the evacuation channel 3 is provided between the lifting lug 22 and the lower surface of the can lid 1. Preferably, the lower surface of the can lid 1 is provided with a plurality of support blocks 13 capable of abutting against the lift tab 22, and the space between the different support blocks 13 forms the gas guide passage 4. With such a design, a sufficient contact area between the lifting lug 22 and the can lid 1 can be ensured, and the air exhaust channel 3 can be ensured to be unobstructed.

In some preferred embodiments of the present invention, the pulling projection 22 may also be designed in a shape that does not completely shield the lower end of the pumping channel 3, for example, the pumping hole 11 is designed as a circular hole, the upper surface of the pulling projection 22 has a square shape, the side length of the square shape is smaller than the diameter of the pumping hole 11, and the length of the diagonal line of the square shape is larger than the diameter of the pumping hole 11.

In a further aspect of the present invention, the lower surface of the soft sealing rubber sheet 23 is provided with a plurality of annular ribs 231 abutting against the upper surface of the can lid 1, the number of the annular ribs 231 is preferably 2-3, and all the annular ribs 231 are arranged around the axis of the handle 2.

In a preferred embodiment of the present invention, the handle 21, the lifting lug 22 and the soft sealing film 23 are integrated into a single soft rubber structure, and are integrally formed by injection molding with silicone rubber

In a further aspect of the present invention, the handle 2 is provided with a blind vertical hole 20 so that the two sides of the handle portion 21 can drive the soft sealing film 23 to separate from the upper surface of the can cover 1 when being squeezed. By adopting the design, when the tank body 5 is in a vacuum state, the user shell can release the pressure in the tank body 5 by pinching the hand-holding part 21 by hand, so that the outside air enters the tank body 5, and the handle 2 can be held by hand to open the tank cover 1 after the air pressure in the tank body 5 is balanced with the outside air pressure.

As a further improvement of the above, a hard auxiliary pulling plate 24 is detachably mounted inside the pulling lug 22. The auxiliary lifting plate 24 can improve the rigidity of the lower end portion of the handle 2, and prevent the handle 2 from being pulled out of the suction hole 11 when the can lid 1 is opened. Preferably, the air exhaust hole 11 is a circular hole, the auxiliary lifting plate 24 is a circular plate, and the diameter of the auxiliary lifting plate 24 is larger than that of the air exhaust hole 11.

As a further improvement of the above scheme, the vertical blind hole 20 comprises a first blind hole 201 with a downward opening, a clamping groove 221 is arranged on the inner side wall of the first blind hole 201, and the auxiliary lifting plate 24 is installed in the clamping groove 221. The auxiliary pulling plate 24 divides the first blind hole 201 into an upper hole section and a lower hole section, and a through hole 241 for communicating the upper hole section with the lower hole section is arranged on the auxiliary pulling plate 24. By adopting the design, when the user squeezes the hand-holding part 21 to release the pressure, part of air in the upper hole section can be extruded out, so that the handle 2 is squeezed to deform.

Specifically, the vertical blind hole 20 further includes a second blind hole 202 with an upward opening, and the handle 2 is provided with a partition 25 for separating the first blind hole 201 from the second blind hole 202.

As a further improvement of the present invention, the can lid 1 is provided with the mounting table 16, the first seal ring 6 includes a seal ring base 61 which is fitted to the mounting table 16, and a seal rim 62 which is provided at a lower portion of the seal ring base 61, a V-shaped groove 63 which opens outward is formed between the seal rim 62 and the seal ring base 61, and the seal rim 62 is pressed against the upper end surface of the can body 5 by gravity when the can lid 1 is fitted to the can body 5.

Specifically, the lower part of the cylinder 17 is inserted into the upper port of the tank 5 to limit the horizontal movement of the tank cover 1 relative to the tank 5, the mounting table 16 surrounds the outer side wall of the upper part of the cylinder 17, the seal ring base 61 is provided with a clamping groove 611 with an inward opening, and the mounting table 16 is clamped into the clamping groove 611 and is in interference fit with the seal ring base 61.

When the can lid 1 is attached to the can body 5, the sealing edge 62 can be pressed against the upper end surface of the can body 5 by the gravity of the can lid 1, the handle, and the first sealing member, thereby automatically forming a seal. When the tank body 5 is in a vacuum state, because a V-shaped groove 63 is formed between the sealing edge 62 and the sealing ring base body 61, the sealing edge 62 is pressed downwards under the pressure of the atmospheric pressure, and meanwhile, the sealing ring base body 61 is pressed upwards, so that the sealing ring base body 61 is tightly attached to the lower surface of the mounting table 16, and the sealing edge 62 is tightly attached to the upper end surface of the tank body 5, thereby achieving excellent sealing effect.

Further, the sealing edge 62 tapers in thickness from its fixed end to its free end. With such a structure, the pressure-bearing capacity of the sealing edge 62 is gradually reduced from the fixed end to the free end, and the free end of the sealing edge 62, i.e., the edge of the sealing edge 62 can be ensured to be closely attached to the upper end surface of the can body 5 under the pressure of the atmospheric pressure.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a vacuum tank, includes a jar body (5), cover (1), handle (2) and sets up first sealing washer (6) between jar body (5) and cover (1), be provided with aspirating hole (11) on cover (1), its characterized in that, handle (2) run through aspirating hole (11) and handle (2) and aspirating hole (11) the inside wall between leave air exhaust passage (3), the upper portion of handle (2) is provided with portable portion (21), the lower part of handle (2) is provided with and is used for mentioning carrying of cover (1) and carries lug (22), be provided with on handle (2) and to push up in the upper surface of cover (1) with sealed air exhaust passage (3) last port's sealed flexible glue piece (23).

2. The vacuum tank as claimed in claim 1, wherein the lifting lug (22) shields the lower end of the air exhaust channel (3), and an air guide channel (4) communicated with the air exhaust channel (3) is arranged between the lifting lug (22) and the lower surface of the tank cover (1).

3. The vacuum tank as claimed in claim 1, wherein the lower surface of the soft sealing film (23) is provided with a plurality of annular ribs (231) which are abutted with the upper surface of the tank cover (1).

4. The vacuum tank as claimed in claim 1, wherein the handle portion (21), the lifting lug (22) and the soft sealing film (23) are of an integrated soft rubber structure, and the handle (2) is provided with a vertical blind hole (20) so that the soft sealing film (23) can be driven to separate from the upper surface of the tank cover (1) when two sides of the handle portion (21) are extruded.

5. Vacuum vessel according to claim 4, characterized in that a rigid auxiliary lifting plate (24) is detachably mounted inside the lifting lug (22).

6. The vacuum tank as claimed in claim 1, wherein a concave position (14) is arranged at the middle part of the tank cover (1), the air suction hole (11) is arranged at the bottom of the concave position (14), and the hand-held part (21) and the soft sealing rubber sheet (23) are accommodated in the concave position (14).

7. The vacuum tank as claimed in claim 1, wherein the tank cover (1) is provided with a mounting table (16), the first sealing ring (6) comprises a sealing ring base body (61) clamped on the mounting table (16) and a sealing edge (62) arranged at the lower part of the sealing ring base body (61), a V-shaped groove (63) with an outward opening is formed between the sealing edge (62) and the sealing ring base body (61), and the sealing edge (62) is pressed on the upper end surface of the tank body (5) through gravity when the tank cover (1) is covered on the tank body (5).

8. The vacuum tank as claimed in claim 7, wherein the lower part of the tank cover (1) is provided with a cylinder body (17), the lower part of the cylinder body (17) is inserted into the upper port of the tank body (5), the mounting table (16) is arranged on the outer side wall of the upper part of the cylinder body (17) in a surrounding manner, the sealing ring base body (61) is provided with a clamping groove (611) with an inward opening, and the mounting table (16) is clamped into the clamping groove (611) and is in interference fit with the sealing ring base body (61).

9. Vacuum tank, according to claim 1, characterized in that the sealing rim (62) tapers in thickness from its fixed end to its free end.

10. A vacuum tank assembly, characterized by comprising a vacuum pump (7) and a vacuum tank according to any one of claims 1 to 9, wherein the vacuum pump (7) comprises a housing (71) and a vacuum pump (72) arranged in the housing (71), the upper surface of the tank cover (1) is provided with an annular mounting groove (15) arranged around the handle (2), the bottom of the housing (71) is provided with an annular base (711) inserted into the annular mounting groove (15), and an annular second sealing ring (8) is further arranged between the housing (71) and the tank cover (1).