CN107420284A - Rapid vacuum sealing device, its manufacturing method and new application, and rapid sealing method - Google Patents

Abstract

The invention provides a plastic bag, which relates to quick sealing and is used for packaging food and the like. For example: a plastic bag comprising a plastic bag wall, a liquid within the plastic bag, wherein: a. the plastic bag filled with the liquid is in full sealing, the outer wall (97) of the plastic bag is provided with a sanitary sticker, and the surface of the outer wall (97) of the plastic bag covered by the sanitary sticker is provided with a sanitary surface; b. one of said plastic bags is a part of a quick sealing device for keeping liquid free from air contamination during a part of its liquid outflow in the liquid supply; the invention utilizes the atmospheric pressure, can quickly form a sealed cavity, saves labor and is suitable for food preservation; or shorten the time of the relevant process.

Description

Quick vacuum sealing device and manufacturing method and new application thereof, and quick sealing method

The present application is a divisional application of the invention patent application entitled "rapid vacuum sealing device and method of making and new use thereof and rapid sealing method", having application number "200410064310.6", filed 3/11/1998.

The invention patent of application number 200410064310.6 is a divisional application of the invention patent application entitled "rapid vacuum sealing device and manufacturing method and new use thereof and rapid sealing method", with application number 98110707.9 and application date 3/11/1998.

The invention relates to a vacuum sealing device and a sealing method.

The manual vacuum sealing devices available on the market are not fast in operation, refer to fig. 1-6: (1) the sealing adhesive sticker consists of a strip-shaped adhesive sticker and a middle rubber sealing piece. The two sides of the non-setting adhesive sticker are adhered to the plastic dome cover surface and are not easy to peel. And (2) the piston rod drawing piston is driven by the rebounding force of a pressure spring on the piston rod, the spring cannot be reset completely under the influence of vacuum suction, and the vacuum pump 03 is pressed downwards by one hand and the piston is drawn upwards by the other hand, so that the operation is not forceful and unreasonable, and the vacuum degree is low. (3) When small holes are punched at the flat part of the sheet iron bottle cap by the needle-shaped puncher 01, the small holes cannot be punched on the plastic bottle cap. The adhesive seal 02 is unsanitary because of its high cost and repeated use, and the adhesive sticker is ineffective after several uses. (4) When the exhaust tube 04 is inserted into the vacuum sealing bag 06, a thick towel 05 must be laid under the bag, vegetable oil 08 is coated in the bag, sponge 07 is padded on the bag, the sponge is compressed, and the leak 09 between the exhaust tube and the vacuum bag is eliminated, so that the operation is difficult, the operation is limited to the inner zipper with high price to seal the freshness protection bag, otherwise, a hole must be opened in the center of the bag and an exhaust switch valve is mounted, the cost is increased greatly, and the popularization is not facilitated. The vacuum sealing device proposed in Pat. No.4975028 in the united states is not fast enough and is costly. (5) In addition, the vacuum tanks proposed by the chinese patent application nos. 89217950.3, 91201187.4, 94207728.8 and 96225970.5, which replace fire tanks, cannot form a negative pressure chamber quickly, and even cannot be operated quickly with one hand, and the practicality is not perfect although winning the international fair prize. (6) The peripheral wall of the vacuum suction cup has no scale, and the skin in the vacuum cup can be damaged due to excessive negative pressure. (7) The sealed bag with the air exhaust valve in the center of the bag adopts inner and outer plastic pressing strips with the same length, the clamp clamps the bag opening, and the combination position between the inner and outer pressing strips is basically parallel to each other at two ends, so that the inner and outer pressing strips are difficult to be broken by two handles, and the serious degree of powerless operation of common women and teenagers is reached; and the outer rings at the two ends of the holding strip can be omitted.

The invention aims to provide a plurality of quick vacuum sealing devices and quick sealing methods.

The series of inventions is realized as follows (more than two inventions are provided in a general inventive concept):

(1) the upper cavity of the cylinder of the vacuum pump adopts sliding seal and is provided with an air suction channel, the lower cavity of the cylinder is provided with an exhaust channel, and the lower part of the cylinder is provided with a suction cavity communicated with the air suction channel.

(2) A manufacturing method of a rapid vacuum sealing device comprises the following steps: manufacturing a manual vacuum pump, forming an air cylinder, installing a piston assembly into an inner cavity of the air cylinder, adopting sliding seal and arranging an air suction channel on an upper cavity of the air cylinder, and communicating the air suction channel on the upper cavity of the air cylinder with a suction cavity at the lower part of the air cylinder.

(3) A rapid vacuum sealing method comprises the following steps: a manual vacuum pump is adopted for vacuum suction, the outer wall of the vacuum pump is held by a hand to compress the sucker, and the push piston rod is pushed to suck vacuum.

(4) A fitting (hereinafter referred to as a "rib") capable of forming a check valve with the sealing sheet is provided between the suction cup and the sealing sheet.

(5) A manufacturing method of a rapid vacuum sealing device comprises the following steps: and respectively opening a die to manufacture the sucker and the sealing sheet, injecting rubber into the sealing sheet die, cooling, demolding to form a sheet with a smooth surface, and opening the die to punch a dividing line for dividing the rubber sheet.

(6) A rapid vacuum sealing method comprises the following steps: the sealing piece is adopted to seal the opening of the container, the sealing piece covers the opening of the container, the sucking disc compresses the convex ribs and compresses partial edges of the sealing piece through the convex ribs, the convex ribs and the sealing piece jointly form a one-way valve, the sucking disc covers the one-way valve into an inner cavity of the sucking disc, the air pipe is communicated with a negative pressure source, and the sucking disc is vacuumized and removed.

(7) The vacuum pump is provided with more than 2 overlapped cylinders.

(8) A rapid vacuum sealing method comprises the following steps: the suction cup cavity is vacuumed beside the central axis of the suction cup.

(9) The peripheral wall of the transparent sucker is provided with a vacuum degree measuring mark.

(10) A rapid vacuum sealing method comprises the following steps: opening the mouth of the vacuum bag, filling the article to be packed, connecting the inner cavity of one end of the conduit with the inner cavity of the vacuum bag from the mouth and the other end with the negative pressure source, and eliminating the leakage seam of the mouth of the vacuum bag by the fastening device on the periphery of the conduit so as to seal the mouth of the vacuum bag.

(11) A quick vacuum sealing device is composed of a guide tube, etc. and a fastening device for eliminating the leakage seam of the wall of a vacuum bag is arranged at the periphery of the guide tube.

(12) A quick vacuum sealing method features that the fluid is filled in vacuum bag, the vacuum bag is sealed completely, one end of guide tube is inserted in said vacuum bag, and the fastening unit around the guide tube is used to eliminate the leakage seam on the wall of socket and to seal the socket.

(13) A rapid vacuum sealing method comprises the following steps: the qualified gas is filled into the plastic bag, the plastic bag is communicated with the shaping container filled with liquid, and the qualified gas in the plastic bag flows into the shaping container and the bag is flattened by the atmosphere along with the liquid flowing out of the container.

(14) A manufacturing method of a rapid vacuum sealing device comprises the steps that one end of a metal tube is communicated with a sealed plastic bag through a switch, the other end of the metal tube is communicated with an air pump, the metal tube is heated at a high temperature, the switch is opened, the air delivered by the air pump enters the plastic bag after being sterilized at the high temperature through the metal tube, and the switch is closed; the inner cavity of the plastic bag is communicated with the inner cavity of the shaping container.

(15) A rapid vacuum sealing method comprises the following steps: the mouth of the vacuum bag is opened, the articles to be packaged are filled in the bag, the mouth of the vacuum bag is clamped by adopting an inner clamping bar and an outer clamping bar, and the like, and the invention is technically characterized in that: the end parts of the inner and outer clamping strips are clamped and assembled in a short and long configuration.

(16) A rapid vacuum sealing method comprises the following steps: the inner rod extends into the middle hole of the inner holding strip, the turning joint part of the inner rod and the outer rod is arranged at the position near the front of the top of the inner holding strip, the outer rod is not contacted with the inner holding strip but can act on the inner rod to generate acting force including reacting force through the turning joint part, when force is applied, the inner rod generates force pointing to the arc notch direction of the outer holding strip on the inner holding strip, and meanwhile, the outer holding strip receives the force in the opposite direction, so that the end parts of the inner holding strip and the outer holding strip are separated and then the inner holding strip and the outer holding strip are separated. The vacuum bag can be used as an outer clamp or a seal-off device of the vacuum bag. Preferably the inflection junction of the inner and outer bars acts as a fulcrum for the force.

(17) A quick vacuum sealing device is composed of an inner rod capable of extending into a middle hole of an inner holding strip, an outer rod not in a straight line with the inner rod, and a turning joint of the inner rod and the outer rod.

(18) The outer wall of the vacuum bag is provided with a sanitary sticker.

(19) A rapid vacuum sealing method comprises the following steps: the puncher is used for manufacturing small holes on the bottle cap, the sealing sheet is used for covering the small holes for sealing and the like, and the drill bit puncher is selected for rotary drilling of the small holes.

The series of invention can respectively and independently and quickly form a sealed cavity with higher vacuum degree, saves labor and is particularly suitable for vacuum preservation of household food; or the time of the relevant process is shortened.

The specific structure of the present invention is given by the following embodiments and the accompanying drawings.

Fig. 1-6 are schematic views illustrating the state of use of a prior art vacuum sealing apparatus.

Fig. 7 is a sectional view of a vacuum pump according to the present invention.

Fig. 8 is a sectional view of the vacuum pump of fig. 7 modified to a suction and compression dual pump.

Fig. 9 is a sectional view showing a pumping state of the pump for pumping and compressing according to the present invention.

Fig. 10 is a sectional view showing a compression use state of the pump for both suction and compression according to the present invention.

Fig. 11 is a sectional view of a suction cup according to the present invention.

Figure 12 is an oblique view of a single piece of a sealing disc according to the invention.

Fig. 13 is a plan view of a massive sealing piece with a cut line punched out.

Figure 14 is a cross-sectional view of an optimized combination of a vacuum pump and a suction cup according to the present invention.

Fig. 15 is a cross-sectional view of an exhaust tube according to the present invention.

FIG. 16 is a cross-sectional view of a proposed extraction tube outer jacket tube in accordance with the present invention.

Fig. 17 is a schematic view showing a state of use of a clip according to the present invention.

FIG. 18 is a schematic perspective view of a prior art inner and outer spline clamp.

Fig. 19 is a schematic perspective view of a gasket disposed between inner and outer beads according to the present invention.

Fig. 20 is a cross-sectional view of the inner and outer pressure strips of fig. 19 clamped along a vacuum bag opening while being evacuated.

Fig. 21-23 are oblique views of the clamping bars of a clamp according to the invention.

Fig. 24 is a partial use state diagram of a clip according to the present invention.

Fig. 25 is an oblique view of a proposed jig according to the present invention.

FIG. 26 is an assembly view (in oblique view) of the inner and outer clips of FIG. 18 and in accordance with the present invention.

Fig. 27 is a front view, fig. 28 is a left side view and fig. 29 is a top view of a separator element of the clamp of fig. 26 according to the invention. Figure 30 is a front view of another part. Fig. 31 is a view showing a state of use after the jig separator is assembled.

Fig. 32 and 33 are oblique views of another separator of the clamp of fig. 26, respectively. Fig. 34 is a front view of another separator of the clamp of fig. 26, and fig. 35 is an oblique view of the other separator of the clamp of fig. 26.

Fig. 36 is a sectional view showing a state of use of the jig for sealing after the vacuum bag is closed, according to the present invention.

FIG. 37 is a sectional view showing the use state of the sealing jig after the guide tube is inserted into the wall of the vacuum bag according to the present invention.

Fig. 38 is a sectional view showing a state in which a quick vacuum sealing apparatus according to the present invention is used.

Fig. 39 is a sectional view of a rapid vacuum sealing apparatus according to the present invention.

Fig. 40 is a partial front view of a rapid vacuum sealing apparatus according to the present invention.

Fig. 41 and 42 are sectional views of a vacuum tank according to the present invention.

Fig. 43 is a cross-sectional view of a vacuum chuck in accordance with the present invention.

Fig. 44 is a cross-sectional view of a vacuum chuck canister according to the present invention.

Fig. 45 is a sectional view of a vacuum vessel according to the present invention.

Fig. 46 and 47 are sectional views of a vacuum pump of a cylinder liner gas cylinder according to the present invention.

FIG. 48 is a schematic perspective view of a drill bit punch according to the present invention.

FIG. 49 is a cross-sectional view of the tube of FIG. 36 with a sliding seal between the stud and the tube.

Fig. 50 is a cross-sectional view of the lower end of the catheter of fig. 36 with a detachable suction tube.

Fig. 51 is a partial cross-sectional view of the use of the clip of fig. 36.

Fig. 52 is a left side view of the clip of fig. 51.

Several embodiments of the series of inventions shown in fig. 7-52 are described below.

Referring to fig. 7, the cylinder is provided with a groove 14 on the outer wall 7, a transverse hole 32 is arranged beside the outer wall and communicated with the lower cavity of the cylinder to be used as an exhaust channel, or the transverse hole 32 is arranged beside the lower seat 17 of the cylinder; the cylinder is preferably made of plastic, and the plastic is preferably ABS engineering plastic; a piston consisting of an O-shaped sealing ring clamped by an upper pressing ring 10 and a lower pressing ring 12 is arranged in the inner cavity of the cylinder, and the piston rod 3 form a piston assembly; the cylinder upper cover 9 is provided with a groove 6 and a transverse hole 30 at the side; preferably, the material of the upper cover 9 is the same as that of the cylinder, and the manufacturing method of the manual vacuum pump comprises the following steps: opening a mold or machining a cylinder and other parts for molding, preferably forming the cylinder by plastic injection molding, preferably opening a left harf mold and a right harf mold, respectively arranging core rods at the positions of an inner cavity of the cylinder and an inner cavity of a base, closing the mold for injection molding, cooling, opening the harf mold left and right, propping the top surface of the cylinder by a slide rod, ejecting the cylinder and the upper core rod out of the mold, and manually pulling out the upper core rod; the piston assembly is arranged in the inner cavity of the cylinder; the upper cavity 8 of the cylinder is sealed in a sliding way; preferably, the upper end of the cylinder is sleeved with a cover 9 and is bonded with the lower seat of the cylinder by using a bonding agent, an O-shaped sealing ring 5 is sleeved into the piston rod, and an outer sleeve cover 4 is bonded on the upper cover of the cylinder to form sliding seal; the top end of the piston rod is provided with a piston rod handle 1; the suction cup 25 is connected with the lower seat of the cylinder (bonded or connected by screw thread); the cylinder upper cavity 8 is communicated with the sucker inner cavity 26 through the grooves 6 and 14, the transverse hole 19 and the vertical hole 23; the cylinder lower chamber 13 has an exhaust passage formed by a vertical hole 15 and transverse holes 32 and 30.

When the vacuum is pumped, the piston rod pushes and presses, the cylinder moves forwards passively and compresses the sucker, the sucker and the cover surface of the container are compressed and sealed, and the cylinder, the inner cavity of the sucker and the inner cavity of the container are all in vacuum.

Referring to fig. 8, a cylinder lower seat 17 is provided with a lateral hole 19 at its side and a vertical hole 23 at its lower part and a vertical hole 15 at its upper part and a lateral hole 32 at its side; when the vacuum degree of the upper cavity of the cylinder is higher, the check valve 31 and the sealing ring 11 on the exhaust channel help to further improve the vacuum degree. The one-way valve 20 is arranged on the air suction channel, so that the volume efficiency is improved. For both suction and compression, the exhaust passage communicates with the air compression passage, which is preferably formed by an internal thread 34 and an "O" ring 33. Lateral holes 21 and 22 are arranged at the side of the lower seat of the cylinder and can be connected with an air suction pipe of a container such as a plastic bag.

Referring to fig. 9 and 10, a bottom cover 35 of the pump is preferably provided on the lower cylinder seat 17 to be alternately exchanged with the suction cup. (1) The suction use state of the vacuum pump is shown in fig. 8: the vertical holes 15 and 23 are communicated, and O-shaped sealing rings 16 and 18 are arranged in the vertical holes; the vertical hole 23 is provided with an internal thread; the sucking disc is stuck and sheathed with the external thread connector 24, preferably the connector 24 is provided with a concave surface, so that the inner cavity 26 of the sucking disc, the inner hole 27 of the connector, the transverse hole 28, the vertical hole 23, the transverse hole 19 and the transverse holes 21 and 22 are communicated; the coupling member abuts the seal ring 18 so that the vertical hole 15 is not communicated with the vertical hole 23. Within the transverse bore 30 is a stop 29. (2) The compression use state is shown in fig. 10: the bottom cover 35 of the inflator is in threaded connection with the lower seat of the air cylinder, and the upper end of the bottom cover is tightly pressed against the O-shaped sealing ring 16, so that an air compression channel is formed in the inner cavity. A check valve is preferably arranged in the air compressing channel, and consists of a spring 36, a T-shaped check valve 37, an inner plug 38 and an air storage tank 39. When the pedal is needed to inflate, the piston rod is sleeved with the spring or the spring is sleeved before being installed, and the internal thread insert 2 is detached from and installed on the piston rod.

The vacuum pump has extremely low cost; rapidly pumping the mixture until the vacuum degree reaches more than 70 cm; the quick inflation pressure reaches 10kg/cm2, and the automobile tire can be inflated; the modeling is beautiful, small and exquisite, and is convenient to carry; the suction cup accords with the principle of human engineering, feels loose when in operation, and the force exerted by two hands is coordinated and reasonable, thereby avoiding the ineffective labor of air leakage caused by the separation of the suction cup and the container to be pumped.

Referring to fig. 11 and 12, a rapid vacuum sealing device is composed of a suction cup 25, an air tube 40, etc., wherein the suction cup is usually made of rubber, and a rib 41 is designed in the suction cup as shown in fig. 11. Preferably, the ribs are disposed on the left and right sides of the center. The sealing sheet 42 made of rubber is covered on the small hole on the cover surface of the container, the sucking disc 25 is covered on the sealing sheet, the convex rib 41 is used for pressing part of the edge of the sealing sheet by hand, the air pipe is communicated with a negative pressure source (not shown in the figure), so that the inner cavity of the sucking disc generates negative pressure, and further part of air in the container is sucked from the gap between the sealing sheet which is not pressed by the convex rib and the cover surface of the container, and once the pressure outside the container is higher than that inside the container, the sealing sheet is immediately adsorbed on the cover surface of the container to form a one-way valve. The air pipe can be communicated with negative pressure sources such as an artificial vacuum pump, a water jet pump or an electric vacuum pump. The ribs may also be formed on the sealing sheet.

The plastic sheets used in the mould for manufacturing the sealing sheet are preferably two polyester sheets, so that the two surfaces of the rubber sealing sheet after demoulding are smooth like a mirror surface, and the sealing performance is good. The convex rib and the sucker or the sealing sheet are better connected. The dividing lines 43 on the rubber sheets are better as shown in fig. 13, each small piece is clamped and pulled to separate, and the use is convenient and quick.

The sealing sheet is used as the simplest one-way valve member, is not adhered to the cover surface of a container by a non-setting adhesive, is quick to operate, has the lowest cost and better sealing effect, and is convenient to use at one time.

Two inventions are optimally combined as shown in fig. 14, 11, 12 and 13.

The vacuum sealing bag has no air extraction switch valve, and the bag mouth has no inner zipper, and is preferably made of common plastic bag.

As shown in fig. 15, the two sides of the air extraction tube are provided with raised strips 44 as plugging fillers for the leak 09. As shown in figure 16, a pipeline 45 is sleeved around the exhaust tube, the cavity between the pipeline 45 and the exhaust tube is only communicated with the inner cavity of the vacuum bag, the vacuum bag 06 is squeezed, and the outer wall of the pipeline 45 is tightly attached to the inner wall of the vacuum bag to form the leakage stopping filler for the leak 09.

Referring to fig. 17, an elastic gasket 47 is disposed on the inner side of the clamping strip 46 of the clamp, and the clamping strip presses the gasket and the outer wall of the vacuum bag 06, so as to eliminate a leak 09 between the inner wall of the vacuum bag and the exhaust tube. Preferably, an arc-shaped groove 48 is formed in the middle of the holding strip, so that the gap 09 can be eliminated easily.

After the vacuum is finished, the exhaust tube is drawn out, the sealing gasket 47 is closed up and down, and the bag opening is sealed. As best seen in fig. 18, the conventional inner and outer clamping bars 49 and 50 clamp the vacuum-finished bag mouth in accordance with the prior art, replacing the clamp of fig. 17. The recycling and reusing are realized, and the cost for sealing the vacuum bag is greatly reduced. Referring to fig. 19 and 20, the sealing gaskets 51 of the inner holding strip and the outer holding strip squeeze and eliminate the leak 09 between the exhaust tube and the vacuum bag, vacuum is pumped, the exhaust tube is pumped after vacuum is finished, and the clamp automatically seals the bag opening.

Referring to fig. 21, the holding strip 46 is planar, and is made of elastic material, and generates the plugging filler 44 by elastic deformation, and is preferably provided with a sealing pad; alternatively, referring to fig. 22, the flat strip is provided with an arc-shaped groove 48 to form the plugging filler 44; or referring to fig. 23, a sealing gasket 47 is arranged in the holding strip with the arc-shaped groove, when the conduit is clamped, the plugging filler is generated through deformation, and after the conduit is drawn out, the sealing gasket clamps the opening of the vacuum bag for sealing. Referring to fig. 24, the seals in the fixture are divided into two groups, and when the tube is just pulled off of the inner set of seals 471 (the dashed line indicates the lower portion of the vacuum bag) in the bag, the seals in the bag resume their original tight vacuum bag seal, while the tube is not yet pulled off of the set of seals 472 near the edge of the bag opening, preventing air leakage from the bag opening at the instant the tube is pulled off the bag opening.

According to the rapid vacuum sealing method described in (10) above, the vacuum bag opening after vacuum sealing is performed, or a long sealing strip 460 (shown by a long dashed line in fig. 24) is provided on the inner surface of the holding strip 46, and once the catheter is pulled off the sealing strip, the holding strip is further clamped, and the sealing strips of the upper and lower holding strips clamp the flat or overlapped bag opening outer wall around the catheter in a line sealing manner, or the clamp shown in fig. 18 is replaced for sealing, so that the sealing effect is better. Referring to fig. 25, the upper clamping strip 461 of the fixture opens upward around the shaft 52, the vacuum bag opening is placed on the lower clamping strip 462, the conduit extends into the vacuum bag, the upper clamping strip closes downward with the lower clamping strip, the fastener 53 clamps the upper and lower clamping strips, and the leak-stopping filler in the clamping strips eliminates the leak 09. After the vacuum is completed, the upper and lower holding strips or the bag mouth is further clamped for heat sealing or replaced by a lower-cost clamp shown in FIG. 18. The vacuum bag is preferably a plastic bag.

The inner zipper plastic bags are 0.80 yuan each, the cost is reduced by 25 times by using 0.035 yuan each of the plastic food fresh-keeping bags without the inner zipper in comparison, and the inner and outer or the upper and lower holding strips can be repeatedly used. The invention solves the key problem for the vacuum sealing of the plastic bag, namely, the high-cost and difficult-to-operate plastic bag vacuum sealing technology of installing an air suction valve on the central bag wall of the plastic bag or manufacturing an inner zipper on the opening of the plastic bag is changed into the simplest plastic bag for carrying out quick vacuum sealing, and the packaging cost is extremely low. Can be widely popularized.

Referring to fig. 26, the ends of the inner and outer strips are in a short, long configuration when the inner strip 49 is assembled with the outer strip 50 or when the mouth of the vacuum bag is clamped. When the inner clamping strip and the outer clamping strip need to be separated, the fingers can conveniently reverse the force to the inner clamping strip and the outer clamping strip respectively. Preferably, the top 54 of the outer holding strip is slightly longer than the top 55 of the inner holding strip by more than 5mm, one hand holds the outer holding strip, the other hand extends into the middle hole of the inner holding strip by a rod-shaped hard object, the two hands exert force in opposite directions, the rod-shaped object prizes the end part of the inner holding strip, the end parts of the inner holding strip and the outer holding strip are easily separated, and the separation of the inner holding strip and the outer holding strip is convenient. Alternatively, a clip strip separator is used to separate the inner and outer clip strip ends. The holding strip separator consists of the inner rod and the outer rod in the step (17) and a turning joint part of the inner rod and the outer rod, and is realized in various forms such as pliers.

Referring to FIGS. 27-31, the pin holes 57 of the expanding pliers are integrally formed by pins 64, the upper jaw 62 is closed with the lower jaw 56, the upper jaw 63 is opened with the lower jaw 58, and when the jaws are closed inward by hand, the jaws are opened, one jaw being slightly longer than the other, preferably more than 5 mm. The outer side of the binding clip is preferably provided with an outward pushing surface 65 with a larger contact area with an object to be pushed outward, so that the object to be pushed outward is prevented from generating knife-edge-shaped damage; or an arc surface is arranged at the end part 61 of the binding clip in the same way; or the lower tong head is provided with a groove 59; or the lower tong head is provided with a positioning object 60; or the upper tong head is a cylindrical strip; or the length of the lower forceps head is 5-40 mm. The end of the upper jaw is used as an inner rod to extend into the hole in the inner holding strip (as shown in figure 31), and the lower jaw is blocked in the groove of the outer holding strip because the positioning object is larger than the hole in the inner holding strip; the handle as the main body of the outer rod is pinched, and the upper and lower binding clip of the pliers are expanded to separate the end part of the inner holding strip from the outer holding strip. The inner and outer clamping bars can be separated.

As shown in FIG. 32, the long jaw of another type of expanding pliers expands upward and the short jaw expands downward during operation.

As shown in FIG. 33, the other pair of expanding pliers is shown with the lower pliers head 56 attached to a spring steel sheet 67 having a hook 66. The upper tong head 62 extends into the hole in the inner clamping strip, and the hook 66 is positioned above the edge of the gap of the outer clamping strip, the distance between the two hooks is smaller than the distance between the two edges of the gap of the outer clamping strip, when the double tong heads expand, the distance between the two hooks is expanded by elasticity, so that the hooks hook the edge of the gap of the outer clamping strip, and then the end part of the inner clamping strip is separated from the outer clamping strip.

Referring to fig. 34, the various expanding pliers can be summarized as comprising an inner rod 68, an outer rod 71 and a turning joint 69 therebetween, preferably, the angle between the inner rod and the outer rod is greater than 70 degrees and less than 160 degrees, and preferably, the pivot 70 is lower than the bottom of the inner rod. When the inner rod 68 extends into the hole of the inner holding strip, the outer rod is pressed downwards by hand, and the end part of the inner holding strip is pried upwards to be separated from the edge of the gap of the outer holding strip by utilizing the lever principle. Referring to fig. 35, the inner rod 68 extends into the middle hole of the inner holding strip, and the outer wall of the gap of the holding strip is pressed downwards by hand to achieve the same separation purpose.

Referring to fig. 36, the fastening means on the periphery of the conduit 04 creates an annular seal for the vacuum pocket. Preferably, the fastening means is comprised of a threaded stud 76 and a threaded nut 74. Preferably, annular inclined grooves 82, 83 are formed at the sealing surfaces. After the vacuum bag is filled with the product, the bag opening is closed and passes through the inner hole of the nut, the bag opening is expanded, the conduit extends into the bag from the bag opening, the stud and the nut are screwed, most of the bag wall 73 at the bag opening is overlapped (as shown by the left bag wall in fig. 36), and the convex ring is embedded into the groove to form the annular line seal 84. Preferably, a seal ring 75 is provided at the root of the thread. Preferably, the inner cavity of the catheter is provided with a one-way valve 77, the top of the inner plug 79 is provided with a groove 78, the fluid in the bag flows out through the pipeline 72, the one-way valve 77, the groove 78 and the pipeline 80, and the one-way valve is automatically sealed after the vacuum is finished. Preferably, a switch 81 is provided to control the conduit 80. Preferably, hexagonal or striated formations are formed around the stud 76 or nut 74 to facilitate tightening of the fastening device. Alternatively referring to fig. 37, the fastening device is comprised of a counter-sunk catheter 89 and an expansion tube 85, with the largest tube outside diameter 88, the smaller tube outside diameter 87 and the smaller tube outside diameter 04. Preferably, the top of the tube is provided with a conical tip 91. Preferably, the conical top is not a pure cone, but a conical generatrix with a groove and a knife edge along the generatrix is curved as shown in fig. 37, which is beneficial to the conical top to ensure that the hole of the bag wall is circularly and uniformly enlarged after the conical top punctures the vacuum bag wall. Preferably at the lower tube outside diameter 88, below the transverse bore 90. When the conical top pierces the bag wall, the bag wall around the opening becomes thinner and clings to the pipe outer diameter 87, the inner conical hole 86 of the expanding pipe moves downwards as shown in the figure to turn the bag wall 73 downwards, and the expanding pipe and the pipe outer diameter 88 clamp and seal the bag wall. Fluid within the bag may flow out of the cross bore 90, the conduit 72.

Referring to fig. 38, the liquid 93 in the container 92 flows out of the conduit 95, a vacuum is generated in the container, and the conduit 94 is used to introduce the qualified gas in the plastic bag into the container, and the plastic bag is compressed by the atmosphere as the liquid flows out, thereby isolating the unqualified gas from entering the container. Referring to fig. 39, the air tap 96 of the plastic bag is provided with a rubber inner plug 95, the air needle is inserted into the inner plug, the qualified gas is filled into the plastic bag, the air needle is pulled out, the air needle is inserted into the inner plug, and the inner cavity of the plastic bag is communicated with the inner cavity of the container. The container can be filled with liquid medicine, pure water and the like, and is free from air pollution. The air pump pumps the filtered air into the metal pipeline, the metal pipeline is sterilized at high temperature, and the qualified air is filled into the plastic bag.

Referring to fig. 40, a sanitary sticker, preferably made of adhesive sticker 98, is disposed on an outer wall 97 of the vacuum bag, a sterile or sterile pad 99 is preferably disposed between the sanitary sticker and the outer wall of the bag, no adhesive is left on a pull tab 100, and the cleaning sticker is pulled off and the conical top can pierce the wall of the bag.

Referring to fig. 41, the height of the suction cup 25 is greater than 8mm, and the inner cavity of the suction cup has enough space for cupping medical treatment.

Referring to fig. 42, the transparent wall of the vacuum cup is provided with a vacuum degree measuring mark 101 for controlling the cupping degree. Preferably, a one-way valve 20 is provided.

Referring to FIG. 43, a suction chamber 102 is provided near the central axis of the suction cup 25 so that clothes can cover the vacuum tank during winter. A one-way valve 103 is preferably arranged, and the normal pressure can be recovered by shifting the one-way valve after the cupping is finished. As best seen in FIG. 44, a magnetic rod 105 is slidably sealed while maintaining vacuum in the inner cavity of the suction cup, preferably a medicated pad 106 is provided at the top end of the magnetic rod, a heating element 104 is provided around the magnetic rod, and the outer end of the magnetic rod can be connected to an electric physiotherapy apparatus.

Referring to fig. 45, the magnetic rod 105 is in sliding seal with the suction cup cavity of the vacuum pump. Preferably, the magnetic bar is higher than the handle, an exhaust channel is arranged between the magnetic bar and the piston rod, a polarity mark 107 is arranged at the top end of the magnetic bar, and the S pole is red and the N pole is blue.

Referring to fig. 46, when the cylinder 7 of the vacuum pump is sleeved with the cylinder, when the vacuum pump is pulled, the fluid in the inner cavity of the outer cylinder enters the inner sleeve through the check valve 109 in the central hole of the piston seat and the straight hole 108 and is discharged. The overlap pattern of the cylinders in fig. 44 can achieve overlap of more than 2 cylinders, or the overlap pattern shown in fig. 47. The amount of suction can be increased per unit working volume.

Referring to fig. 48, the drill bit puncher includes a puncher housing 152, a handle 153, a drill bit 154 and the like, wherein the handle is pinched by fingers, the handle is translated towards the center of the puncher, the linear motion of the handle is changed into the rotation of an inertia rotating wheel in the puncher through the gear linkage, and then the drill bit installed at the center of the rotating wheel rotates to drill a small hole of a bottle cap.

According to the sealing method described in (10), referring to fig. 49-51, it is preferable that after clamping the mouth of the plastic bag and applying vacuum to the bag, the plastic bag is fixed by one hand and the fastening means of the mouth of the bag is rotated by the other hand, so that the wall of the plastic bag between the mouth of the bag and the article to be packaged is twisted in a string-like manner as shown in fig. 51, and the string-like shape of the wall of the plastic bag is maintained, thereby achieving a good sealing effect. Preferably, as shown in fig. 49, the sliding seal is used between the conduit tube 04 and the stud, and after the vacuum is pumped into the bag, the conduit tube 04 is moved to above the nut notch 113, or as shown in fig. 50, the lower end of the conduit tube is separated from the suction tube 115, both of which prevent the plastic bag wall from adhering to the tube wall and rotating, thereby easily forming a string-like plastic bag wall. Referring to fig. 51 and 52, it is preferable that the nut 74 is provided with a notch 113 for clamping the string 116 of the plastic bag wall by pushing the string 116 into the notch, thereby preventing the string 116 from being unscrewed when the hand is separated from the plastic bag. The notches are preferably in the shape of "eight" with different sizes for selective extrusion of the rope 116. A gasket 114 is preferably provided at the location where the stud and nut seal.

After the vacuum bag is vacuumized, the bag can be filled with O3, N2 or CO2, and the bag opening is sealed. Reducing air infiltration into the vacuum bag. Alternatively, the switch 81 is omitted. The guide pipe 04 can be pulled out of the stud 76 after rope-shaped twisting and tight sealing at the mouth of the plastic bag, and is matched with other fastening devices for repeated use. Preferably, the seal 75 is disposed in a groove in the outer wall of the conduit. The cost is lower.

Claims (8)

1. A quick vacuum sealing method, the vacuum bag is filled with articles to be packaged, and the vacuum bag is fully sealed. It is characterized in that: one end of the catheter is inserted into the above-mentioned vacuum bag, and the fastening device around the catheter eliminates the bag wall leakage around the socket. Cooperate to seal the socket part. 2. A kind of plastic bag that the fast vacuum sealing method described in claim 1 provides, comprises plastic bag bag wall, and liquid is arranged in the plastic bag, it is characterized in that: a. The plastic bag filled with liquid is fully sealed, the outer wall (97) of the plastic bag is provided with a sanitary sticker, and the surface of the outer wall (97) of the plastic bag covered by the sanitary sticker has a hygienic surface; b. One of said plastic bags is a part of a quick-sealing device for keeping the liquid free from air contamination during part of its liquid outflow during the supply of the liquid, said quick-sealing device also comprising a conduit comprising the body of the conduit , the conduit of conduit, all has conduit opening at the end of conduit, has the pipe top that can puncture described plastic bag bag wall at one end of conduit; c. When the plastic bag is not in use, there is a sanitary sticker on the outer wall (97) of the plastic bag; when the plastic bag is in use, there is no sanitary sticker on the outer wall (97) of the plastic bag; When the above plastic bag is used, the surface of the outer wall (97) of the plastic bag originally covered by the sanitary sticker has a bare hygienic surface; d. The use state of the quick sealing device is: the installation state of the conduit at the top of the tube that can pierce the wall of the plastic bag relative to the plastic bag is: the installation state that can pierce the wall of the plastic bag The conduit at the top of the tube makes the plastic bag have a socket, and the outer peripheral wall of the conduit end at the top of the tube that can pierce the wall of the plastic bag is connected to the plastic bag at the socket, and at the socket There is an annular seal, and the pipe opening at the end of the conduit at the top of the pipe that can pierce the wall of the plastic bag communicates with the inner chamber of the plastic bag, and the conduit of the quick sealing device has a liquid outlet, which is connected to the inner cavity of the plastic bag. The inner cavity of the plastic bag communicates, and a switch is provided at the liquid outlet; when the switch is turned on, as the liquid in the quick sealing device flows out from the liquid outlet of the conduit of the quick sealing device, the plastic The bag is compressed by the atmosphere, which prevents unqualified gas from entering the quick sealing device, so that the liquid that has not flowed out in the quick sealing device will not be polluted by the air; when the switch is turned off, the rest of the liquid in the quick sealing device will not be affected. air pollution. 3. The plastic bag according to claim 2, characterized in that there is pure water in the plastic bag. 4. The plastic bag according to claim 2 or 3, characterized in that: there is no sterility between the sanitary patch and the outer wall of the bag. 5. The plastic bag according to claim 4, characterized in that: the sanitary sticker has a pull tab (100). 6. The plastic bag according to claim 2, characterized in that there is liquid medicine in the plastic bag. 7. The plastic bag according to claim 2 or 6, characterized in that: there is no sterility between the sanitary patch and the outer wall of the bag. 8. The plastic bag according to claim 7, characterized in that: the sanitary sticker has a pull tab (100).