CN109878796A - A kind of manual evacuation device - Google Patents
A kind of manual evacuation device Download PDFInfo
- Publication number
- CN109878796A CN109878796A CN201910233611.3A CN201910233611A CN109878796A CN 109878796 A CN109878796 A CN 109878796A CN 201910233611 A CN201910233611 A CN 201910233611A CN 109878796 A CN109878796 A CN 109878796A
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- Prior art keywords
- cylinder
- bottle
- spring
- steel ball
- piston
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000005086 pumping Methods 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000000741 silica gel Substances 0.000 description 7
- 229910002027 silica gel Inorganic materials 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 230000000740 bleeding effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
Abstract
A kind of manual evacuation device, including pump bowl, it is characterised in that: the pump bowl is made of pumping end, cylinder, exhaust end;When vacuumizing, piston upwards, exhaust end is because the air in the one-way function external world cannot be introduced into cylinder；The generated negative pressure that moves upwards of piston makes to be evacuated the pressure that end steel ball overcomes spring, leaves bellmouth α and generates gap, the air in bottle enters 2 piston lower portion of cylinder along gap；When piston is calmed the anger downwards, under the pressure effect of spring, steel ball presses and blocks bellmouth α at pumping end, and the air of piston lower portion cannot be introduced into bottle and can only be discharged via exhaust end；It is repeated several times in this way, so that it may extract the air in bottle outside bottle to form vacuum in bottle out.
Description
Technical field
The invention belongs to vacuum freshness retaining fields, in particular relate to a kind of manual evacuation device, it is a kind of for needing
The manual evacuation device of vacuum-pumping container.
Background technique
After something is bottled, vacuumize process is carried out to bottle, all to the guaranteeing the quality of substance, extension of freshness date etc. in bottle
It is very effective.Bottle is vacuumized, cap for special purpose and manual evacuation device are needed, the present invention is exactly to solve to take out manually
Vacuum plant problem.
Have some relevant document reports by domestic Searches of Patent Literature discovery, it is related to the present invention mainly have it is following
It is some:
1, Patent No. CN201811176742.4, the patent of invention of entitled " one kind vacuumizes Packing Machine ", the invention are public
That opens belongs to technical field of plastic, and specially one kind vacuumizes Packing Machine, including workbench, the bench-top quadrangle
It is vertically welded with upright bar, is welded with top plate between four upright bars tops, the top plate lower center position is bolted with gas
Cylinder, the cylinder bottom telescopic end are bolted with the protective shell that Open Side Down, offer air inlet at the top of the protective shell left side wall,
Air heating apparatus is installed at the top of the protective shell left side wall, protective shell right side wall bottom offers gas outlet, described
Protective shell right side wall bottom is equipped with exhaust fan, and the protective shell inner cavity is welded with the funnel-form baffle that Open Side Down, the leakage
Bucket-shaped baffle bottom is welded with ventilative board, and the ventilative board ontology is uniformly provided with through-hole, and this programme improves the same of production efficiency
When, beautify workshop condition, guarantees the health of operator.
2, Patent No. CN201820489847.4, the patent of entitled " a kind of vacuum plastic sealing device ", the utility model
Belong to quick-frozen food production equipment technology, is related to a kind of vacuum plastic sealing device.Including rack, vacuum chamber, vacuum evacuation device,
The driving mechanism of clamping device, Plastic packaging apparatus, upper sealing plate and the driving upper sealing plate sealing, drives upper sealing plate by driving device
Folding, which is realized, to be opened and seals, then is vacuumized by vacuum evacuation device, good airproof performance, and vacuum degree is good, meets vacuum packaging production
Vacuum level requirements；Upper sealing plate not only may insure good airproof performance, plastic packaging of conveniently taking is good by the retractable setting of driving mechanism
Product, can be with the Plastic packaging apparatus of vacuum chamber easy to clean and repair and replacement internal vacuum chamber, clamping device；Clamping device is used for
Plastic packaging film is clamped, Plastic packaging apparatus carries out thermoplastic envelope, and structure is simple, and it is easy to operate, it is practical.
3, Patent No. CN201820493178.8, the utility model patent of entitled " one kind vacuumizes fresh-keeping system ",
The utility model discloses one kind and vacuumizes fresh-keeping system, belongs to antistaling vacuum container field, comprising: vacuumizes host, elasticity
Silica gel suction nozzle and fresh-keeping cover；Elastic silica gel suction nozzle is ring-type, is seal-installed on and vacuumizes host lower end, vacuumizes the suction of host
Port is located in elastic silica gel suction nozzle；When elastic silica gel suction nozzle is horizontal positioned, the mass center of host is vacuumized in the vertical direction
Projection be located within the scope of elastic silica gel suction nozzle；Fresh-keeping cover is equipped with bleeding point, and bleeding point periphery is equipped with cyclic annular instruction area, cyclic annular
Instruction area is smooth flat, and the internal diameter in ring-type instruction area is greater than bleeding point diameter and is less than the bore of elastic silica gel suction nozzle, cyclic annular
Indicate that the outer diameter in area is greater than the bore of elastic silica gel suction nozzle.The utility model does not need hand steered can vacuum machine be made to consolidate automatically yet
It is adsorbed on fresh-keeping cover, and does not need deliberately to may be implemented " blind operation " manually to positive air entry and bleeding point, it is convenient laborsaving.
Although these above-mentioned patents have been related to vacuum evacuation device, but take out manually very with one kind involved in the invention patent
The structure of empty device is different.Patent No. CN201811176742.4, the hair of entitled " one kind vacuumizes Packing Machine "
Bright patent, the disclosure of the invention belong to technical field of plastic；Patent No. CN201820489847.4, entitled " one kind
The patent of vacuum plastic sealing device ", the utility model belong to quick-frozen food production equipment technology, are related to a kind of vacuum plastic encapsulation
It sets；Patent No. CN201820493178.8, the utility model patent of entitled " one kind vacuumizes fresh-keeping system ", this is practical new
Type discloses one kind and vacuumizes fresh-keeping system, belongs to antistaling vacuum container field, which does not need hand steered can make yet
Vacuum machine is consolidated automatically and is adsorbed on fresh-keeping cover, and does not need that " blind behaviour deliberately may be implemented manually to positive air entry and bleeding point
Make ", it is convenient laborsaving.To sum up, several devices and the present invention are different from structure, in principle or on application direction.
Summary of the invention
It is an object of the invention to for some problems present in existing vacuum evacuation device, provide it is a kind of it is novel,
The completely different manual evacuation device of structure.
To achieve the goals above, the technical solution used in the present invention is: a kind of manual evacuation device, by bottle,
Bottle cap assembly, connection hose and pump bowl form (see figure 7)；The pumping end of pump bowl is connect with hose, hose and bottle cap assembly
Connection, bottle cap assembly are connect with bottle bottleneck；It is characterized by: the pump bowl is made of pumping end, cylinder, exhaust end;It takes out
The right lower quadrant venthole M2 connection of the lower left quarter air inlet M2 connection at gas end and cylinder, exhaust end and cylinder；When vacuumizing, piston
It moves upwards, exhaust end is because the air in the one-way function external world cannot be introduced into cylinder (referring to Fig. 1, Fig. 3)；The upward fortune of piston
Negative pressure caused by dynamic makes to be evacuated the pressure that end steel ball overcomes spring, leaves bellmouth α and generates gap, the air in bottle along
Gap enters cylinder piston lower part via hole Φ b, Φ e, Φ f, Φ g, Hexagon hole and Φ A (see Fig. 1, Fig. 2)；Piston is pressed downward
When gas, pumping end is under the pressure effect of spring, and steel ball presses and block bellmouth α, and the air of piston lower portion cannot be introduced into bottle
It can only be discharged via exhaust end in sub；It is repeated several times in this way, so that it may extract the air in bottle outside bottle to the shape in bottle out
At vacuum.
Further, the pumping end is by pump bowl, steel ball, spring, interior hexagonal anti-loosing screw and O shape rubber seal
Composition；Pump bowl outer diameter is Φ a, and interior path is Φ b, and interior major diameter is Φ e；Cone angle is formed between path and major diameter；Pump bowl with
External screw thread M2 connect with cylinder body lower left side internal screw thread M2 and seals (see Fig. 1, Fig. 2) with sealing ring；Spring is mounted in interior hexagonal anti-loosing
Hole Φ f(Fig. 6 of screw) in and push down steel ball；One layer of rubber is coated on the cone wall of cone angle to increase the leakproofness of steel ball；It is interior
The external screw thread M1 of hexagonal anti-loosing screw is screwed into the internal screw thread M1 of pump bowl (see Fig. 2, Fig. 6).
Further, the cylinder is made of gray iron, piston；Cylinder body lower left side has an internal screw thread M2, with pumping
Cylinder external screw thread M2 connection；Cylinder body lower right side has an internal screw thread M2 to connect with exhaust tube external screw thread M2.
Further, steel ball, spring, interior hexagonal anti-loosing screw and O of the exhaust end by exhaust tube and dress in the inner
Shape rubber seal composition；Steel ball, spring, interior hexagonal anti-loosing screw and O shape rubber seal in it is respectively and in pumping end
Steel ball, spring, interior hexagonal anti-loosing screw it is identical with O shape rubber seal.
Further, there is a hole Φ f on the left of the interior hexagonal anti-loosing screw (see Fig. 6 and Fig. 7), for supporting spring simultaneously
It is oriented to spring, there is an aperture Φ g, be used to through air, there is a Hexagon hole on right side, for placing die nut.
The invention has the advantages that a kind of manual evacuation device, piston when being evacuated generated negative pressure make to be evacuated end
Steel ball overcomes the pressure of spring, leaves bellmouth α and generates gap, and the air in bottle enters in cylinder along gap；Piston pressure
When gas, under spring pressure effect, steel ball presses and blocks bellmouth α, and the air of piston lower portion will not be made to enter bottle at pumping end
It is interior but be discharged via exhaust end；It is repeated several times in this way, so that it may by the air extraction in bottle to form vacuum in bottle.
Detailed description of the invention
Fig. 1 is the assembling structure schematic diagram of one embodiment of the invention；
Fig. 2 is pumping end (left side) Local map of Fig. 1；
Fig. 3 is exhaust end (right side) Local map of Fig. 1；
Fig. 4 be cylinder 2(part 201, part 202, part 203) main view；
Fig. 5 is 201 partial enlarged view of part；
Fig. 6 is 104 main view of part；
Fig. 7 is 104 right view of part
Fig. 8 is vacuum evacuation device system diagram；
In figure: 1, being evacuated end；101, pump bowl；102, steel ball；103, spring；104, interior hexagonal anti-loosing screw；105, O shape rubber
Sealing ring；2, cylinder；201, cylinder body；202, cylinder cap；203, piston；3, exhaust end；301 exhaust tubes；11, bottle；22, bottle cap is total
At；33, hose is connected；44, pump bowl.
Specific embodiment:
Below in conjunction with drawings and examples, the present invention will be further described.
By attached drawing it can be seen that a kind of manual evacuation device of the present invention, by bottle, bottle cap assembly, connects hose and pumping
Inflator forms (see figure 7)；The pumping end of pump bowl is connect with hose, and hose is connect with bottle cap assembly, bottle cap assembly and bottle bottle
Mouth connection；It is characterized by: the pump bowl is made of pumping end, cylinder, exhaust end;Be evacuated the lower left quarter of end and cylinder into
The right lower quadrant venthole M2 connection of stomata M2 connection, exhaust end and cylinder；When vacuumizing, piston upwards, exhaust end because
The air in the one-way function external world cannot be introduced into cylinder (referring to Fig. 1, Fig. 3)；The generated negative pressure that moves upwards of piston makes to take out
Gas end steel ball overcomes the pressure of spring, leaves bellmouth α and generates gap, the air in bottle along gap via hole Φ b, Φ e,
Φ f, Φ g, Hexagon hole and Φ A enter cylinder piston lower part (see Fig. 1, Fig. 2)；When piston is calmed the anger downwards, end is evacuated in spring
Pressure effect under, steel ball presses and blocks bellmouth α, the air of piston lower portion cannot be introduced into bottle and can only be via exhaust
End discharge；It is repeated several times in this way, so that it may extract the air in bottle outside bottle to form vacuum in bottle out.
Further, the pumping end is by pump bowl, steel ball, spring, interior hexagonal anti-loosing screw and O shape rubber seal
Composition；Pump bowl outer diameter is Φ a, and interior path is Φ b, and interior major diameter is Φ e；Cone angle is formed between path and major diameter；Pump bowl with
External screw thread M2 connect with cylinder body lower left side internal screw thread M2 and seals (see Fig. 1, Fig. 2) with sealing ring；Spring is mounted in interior hexagonal anti-loosing
Hole Φ f(Fig. 6 of screw) in and push down steel ball；One layer of rubber is coated on the cone wall of cone angle to increase the leakproofness of steel ball；It is interior
The external screw thread M1 of hexagonal anti-loosing screw is screwed into the internal screw thread M1 of pump bowl (see Fig. 2, Fig. 6).
Further, the cylinder is made of gray iron, piston；Cylinder body lower left side has an internal screw thread M2, with pumping
Cylinder external screw thread M2 connection；Cylinder body lower right side has an internal screw thread M2 to connect with exhaust tube external screw thread M2.
Further, steel ball, spring, interior hexagonal anti-loosing screw and O of the exhaust end by exhaust tube and dress in the inner
Shape rubber seal composition；Steel ball, spring, interior hexagonal anti-loosing screw and O shape rubber seal in it is respectively and in pumping end
Steel ball, spring, interior hexagonal anti-loosing screw it is identical with O shape rubber seal.
Further, there is a hole Φ f on the left of the interior hexagonal anti-loosing screw (see Fig. 6 and Fig. 7), for supporting spring simultaneously
It is oriented to spring, there is an aperture Φ g, be used to through air, there is a Hexagon hole on right side, for placing die nut.
Specific embodiments of the present invention are as follows:
As shown in attached drawing 1- Fig. 8, the present invention is a kind of manual evacuation device, by bottle 11, bottle cap assembly 22, connection hose 33
(see figure 7) is formed with pump bowl 44；The pumping end 1 of pump bowl 44 is connect with hose 33, and hose 33 is connect with bottle cap assembly 22, bottle
Cap assembly 22 is connect with 11 bottleneck of bottle；It is characterized by: the pump bowl 44 is made of pumping end 1, cylinder 2, exhaust end 3;
Pumping end 1 is connect with the lower left quarter air inlet M2 of cylinder 2, and exhaust end 3 is connect with the right lower quadrant venthole M2 of cylinder 2；It vacuumizes
When, piston 203 moves upwards, and exhaust end 2 is because the air in the one-way function external world cannot be introduced into cylinder 2 (referring to Fig. 1, Fig. 3)；
The generated negative pressure that moves upwards of piston 203 makes to be evacuated the pressure that end steel ball 102 overcomes spring 103, leaves bellmouth α and produces
Gap is given birth to, the air in bottle enters 2 piston 203 of cylinder via hole Φ b, Φ e, Φ f, Φ g, Hexagon hole and Φ A along gap
Lower part (see Fig. 1, Fig. 2)；When piston 203 is calmed the anger downwards, under the pressure effect of spring 103, steel ball 102 presses and blocks up at pumping end
Live in bellmouth α, the air of 203 lower part of piston cannot be introduced into bottle 11 and can only be discharged via exhaust end 3；It is repeatedly several in this way
It is secondary, so that it may extract the air in bottle 11 outside bottle to form vacuum in bottle out.
Further, the pumping end 1 is by pump bowl 101, steel ball 102, spring 103, interior 104 and of hexagonal anti-loosing screw
O shape rubber seal 105 forms；101 outer diameter of pump bowl is Φ a, and interior path is Φ b, and interior major diameter is Φ e；Path and major diameter it
Between form cone angle；Pump bowl 101 is connect with 201 lower left side internal screw thread M2 of cylinder body with external screw thread M2 and with the sealing of sealing ring 105
(see Fig. 1, Fig. 2)；Spring 103 be mounted in interior hexagonal anti-loosing screw 104 hole Φ f(Fig. 6) in and push down steel ball 102；In cone angle
One layer of rubber is coated on cone wall to increase the leakproofness of steel ball；The external screw thread M1 of interior hexagonal anti-loosing screw 104 is screwed into pump bowl 101
Internal screw thread M1 in (see Fig. 2, Fig. 6).
Further, the cylinder 2 is made of cylinder body 201, cylinder cap 202, piston 203；201 lower left side of cylinder body has in one
Screw thread M2 is connect with 101 external screw thread M2 of pump bowl；201 lower right side of cylinder body has an internal screw thread M2 and 301 external screw thread M2 of exhaust tube to connect
It connects.
Further, steel ball, spring, interior hexagonal anti-loosing screw of the exhaust end 3 by exhaust tube 301 and dress in the inner
It is formed with O shape rubber seal；Steel ball, spring, interior hexagonal anti-loosing screw and O shape rubber seal in it respectively with pumping end
Interior steel ball 102, spring 103, interior hexagonal anti-loosing screw 104 and O shape rubber seal 105 are identical.
Further, the interior hexagonal anti-loosing screw 104(is shown in Fig. 6 and Fig. 7) left side have a hole Φ f, for supporting bullet
Spring is simultaneously oriented to spring, is had an aperture Φ g, is used to through air, there is a Hexagon hole on right side, for placing die nut.
The invention has the advantages that a kind of manual evacuation device, piston when being evacuated generated negative pressure make to be evacuated end
Steel ball overcomes the pressure of spring, leaves bellmouth α and generates gap, and the air in bottle enters in cylinder along gap；Piston pressure
When gas, under spring pressure effect, steel ball presses and blocks bellmouth α, and the air of piston lower portion will not be made to enter bottle at pumping end
It is interior but be discharged via exhaust end；It is repeated several times in this way, so that it may by the air extraction in bottle to form vacuum in bottle.
It will be apparent that above-described embodiment is simply to illustrate that example cited by the present invention, any common skill in the art
Simply changing and replacing for art personnel is all within protection of the invention.
Claims (5)
1. a kind of manual evacuation device, including pump bowl 44, it is characterised in that: the pump bowl 44 by pumping end 1, cylinder 2,
Exhaust end 3 forms;Pumping end 1 is connect with the lower left quarter air inlet M2 of cylinder 2, the right lower quadrant venthole of exhaust end 3 and cylinder 2
M2 connection；When vacuumizing, piston 203 is moved upwards, and exhaust end 2 is because the air in the one-way function external world cannot be introduced into cylinder 2；
The generated negative pressure that moves upwards of piston 203 makes to be evacuated the pressure that end steel ball 102 overcomes spring 103, leaves bellmouth α and produces
Gap is given birth to, the air in bottle enters 2 piston of cylinder, 203 lower part along gap；When piston 203 is calmed the anger downwards, end is evacuated in spring
Under 103 pressure effect, steel ball 102 presses and blocks bellmouth α, the air of 203 lower part of piston cannot be introduced into bottle 11 and
It can only be discharged via exhaust end 3；It is repeated several times in this way, so that it may will be true to be formed in bottle outside the air extraction bottle in bottle 11
It is empty.
2. a kind of manual evacuation device as described in claim 1, which is characterized in that the pumping end 1 is by pump bowl
101, steel ball 102, spring 103, interior hexagonal anti-loosing screw 104 and O shape rubber seal 105 form；101 outer diameter of pump bowl is Φ
A, interior path are Φ b, and interior major diameter is Φ e；Cone angle is formed between path and major diameter；Pump bowl 101 is with external screw thread M2 and cylinder body
201 lower left side internal screw thread M2 connections are simultaneously sealed with sealing ring 105；Spring 103 is in the hole Φ f of interior hexagonal anti-loosing screw 104
And push down steel ball 102；One layer of rubber is coated on the cone wall of cone angle to increase the leakproofness of steel ball；Interior hexagonal anti-loosing screw 104
External screw thread M1 be screwed into the internal screw thread M1 of pump bowl 101.
3. a kind of manual evacuation device as described in claim 1, which is characterized in that the cylinder 2 is by cylinder body 201, cylinder
Lid 202, piston 203 form；201 lower left side of cylinder body has an internal screw thread M2, connect with 101 external screw thread M2 of pump bowl；Cylinder body 201 is right
Downside has an internal screw thread M2 to connect with 301 external screw thread M2 of exhaust tube.
4. a kind of manual evacuation device as described in claim 1, which is characterized in that the exhaust end 3 is by exhaust tube 301
With steel ball, spring, interior hexagonal anti-loosing screw and the O shape rubber seal composition of dress in the inner；Steel ball, spring in it, interior six
Angle backing-up screw and O shape rubber seal respectively with steel ball 102, spring 103, interior hexagonal anti-loosing screw 104 and the O in pumping end
Shape rubber seal 105 is identical.
5. hexagonal anti-loosing screw 104 in as claimed in claim 2, which is characterized in that the interior hexagonal anti-loosing screw 104 is left
There is a hole Φ f in side, for supporting spring and being oriented to spring, has an aperture Φ g, is used to through air, there is hexagonal in one on right side
Hole, for placing die nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233611.3A CN109878796A (en) | 2019-03-26 | 2019-03-26 | A kind of manual evacuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233611.3A CN109878796A (en) | 2019-03-26 | 2019-03-26 | A kind of manual evacuation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109878796A true CN109878796A (en) | 2019-06-14 |
Family
ID=66934503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910233611.3A Pending CN109878796A (en) | 2019-03-26 | 2019-03-26 | A kind of manual evacuation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109878796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901018A (en) * | 2019-12-10 | 2020-03-24 | 湖南工业大学 | Double-end electric vacuum pumping device for mixing extrusion |
| CN112108070A (en) * | 2020-09-21 | 2020-12-22 | 孙涛 | Preparation method of high-performance water reducing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2110726U (en) * | 1991-09-19 | 1992-07-22 | 席培根 | Light exhausting and inflating cylinder |
| CN2256471Y (en) * | 1995-07-13 | 1997-06-18 | 童仰高 | Man-power air extraction tube |
| CN2326748Y (en) * | 1997-10-05 | 1999-06-30 | 中国科学院南京地理与湖泊研究所科技开发公司 | Potable hand air-extracting-inflating integral pump |
| CN206938570U (en) * | 2017-07-05 | 2018-01-30 | 德州学院 | A kind of Semi-vacuum vegetable transport cart |
| CN207876428U (en) * | 2017-11-18 | 2018-09-18 | 江西腾达竹木业有限公司 | A kind of novel evacuated bamboo and wood products' storage bin |
| CN210284741U (en) * | 2019-03-26 | 2020-04-10 | 湖南工业大学 | Manual evacuating device |
-
2019
- 2019-03-26 CN CN201910233611.3A patent/CN109878796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2110726U (en) * | 1991-09-19 | 1992-07-22 | 席培根 | Light exhausting and inflating cylinder |
| CN2256471Y (en) * | 1995-07-13 | 1997-06-18 | 童仰高 | Man-power air extraction tube |
| CN2326748Y (en) * | 1997-10-05 | 1999-06-30 | 中国科学院南京地理与湖泊研究所科技开发公司 | Potable hand air-extracting-inflating integral pump |
| CN206938570U (en) * | 2017-07-05 | 2018-01-30 | 德州学院 | A kind of Semi-vacuum vegetable transport cart |
| CN207876428U (en) * | 2017-11-18 | 2018-09-18 | 江西腾达竹木业有限公司 | A kind of novel evacuated bamboo and wood products' storage bin |
| CN210284741U (en) * | 2019-03-26 | 2020-04-10 | 湖南工业大学 | Manual evacuating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901018A (en) * | 2019-12-10 | 2020-03-24 | 湖南工业大学 | Double-end electric vacuum pumping device for mixing extrusion |
| CN112108070A (en) * | 2020-09-21 | 2020-12-22 | 孙涛 | Preparation method of high-performance water reducing agent |
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