CN212951306U

CN212951306U - Vacuum fresh-keeping machine

Info

Publication number: CN212951306U
Application number: CN202021987270.3U
Authority: CN
Inventors: 雷欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-04-13
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a vacuum fresh-keeping machine, which comprises a box body, a top cover and a bottom cover, wherein a lower sealing sponge ring and an upper sealing sponge ring are arranged between the box body and the top cover, an air exhaust hole and a control switch are arranged inside the lower sealing sponge ring, an air exhaust pump is arranged inside the box body, and a metal sheet, a heating wire and a vacuum operation indicator lamp are respectively arranged inside the box body; the self-adjusting screw is arranged at the bottom of the control switch, so that the height of the control switch can be manually adjusted, and the device can be ensured to normally start a sealing function; the hinged parts between the top cover, the bottom cover and the box body are moved from the outer side to the inner side, so that the top cover and the bottom cover are prevented from being separated; the metal sheet is fixedly connected with the heating wire through the spring hook, so that the metal sheet is prevented from falling off due to external force vibration.

Description

Vacuum fresh-keeping machine

Technical Field

The utility model belongs to the technical field of the fresh-keeping machine technique and specifically relates to a vacuum fresh-keeping machine is related to.

Background

After the product packaged by plastic bags is filled into a packaging container, in order to store the product in a sealed manner and maintain the quality of the product, the packaging container needs to be sealed by air suction, and the operation is finished on a vacuum fresh-keeping machine. The vacuum fresh-keeping machine mainly comprises a vacuum pump, a heating wire, a chamber to be evacuated (a heat-sealing chamber), a sealing strip, an air pressure switch, an electronic system and other components, and the working principle is that the vacuum pump evacuates air inside the chamber to be evacuated, and when the vacuum chamber is evacuated to a certain negative pressure, the heating system starts to work, so that a bag opening is heat-sealed.

However, the conventional vacuum refreshing machine has the following disadvantages: 1. the sponge in the prior art is a rhombic device, so that the situation of extrusion deformation can occur when buckles at two sides are buckled due to thin walls, and the machine cannot normally operate due to the deformation of the sponge; 2. because the mechanical start delay switch is adopted, the sponge in the machine is extruded and deformed due to the increase of the use times, and the sealing cannot be started; 3. the hinged positions of the cover and the base are positioned at the outermost sides of the two sides of the machine, and the hinged positions of the two sides can be broken or separated because the cover and the base contract in the long-time operation process; 4. the heater strip is inlayed through the becket, receives external force vibrations to have the condition that drops in use or transportation, leads to the machine to damage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vacuum preservation machine to the sponge is out of shape easily in solving the traditional vacuum preservation machine that provides among the above-mentioned background art, can't start and seal, and cover articulated position and heater strip scheduling problem that drops easily.

The technical scheme of the utility model is realized like this:

the utility model provides a vacuum refreshing machine, includes long banding box body, the top and the bottom of box body are provided with top cap and bottom respectively, the upper surface of box body with the lower surface of top cap is provided with lower sealed sponge circle and the upper seal sponge circle of mutual correspondence, just inside extraction opening and the control switch of being provided with of lower sealed sponge circle, control switch's top is run through the top cap, the inside of box body is provided with the aspiration pump, the input of aspiration pump with the extraction opening links to each other, be provided with sheetmetal, heater strip, vacuum operation pilot lamp in the box body respectively, just the sheetmetal is located one side of lower sealed sponge circle, the vacuum operation pilot lamp is located the tip of lower sealed sponge circle.

The two sides of the upper sealing sponge ring and the lower sealing sponge ring are both of elliptical structures.

And the bottom end of the control switch is provided with a screw which can be manually rotated through thread fit. Preferably, the top cover and the bottom cover are fixed with the box body in a hinged mode, and the hinged portion is located on the inner side of the edge of the box body.

Preferably, the cross section of the metal sheet is of a Z-shaped structure, one end of the metal sheet is connected with the heating wire through a spring hook, and the other end of the metal sheet is connected with the electric wire of the circuit board through a fastener.

Preferably, the two ends of the top cover are provided with clamping blocks, and the two ends of the box body are provided with buckles matched with the clamping blocks.

Preferably, the number of the air exhaust holes is at least two.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the two sides of the upper sealing sponge ring and the lower sealing sponge ring are changed into ellipses from diamond shapes, so that the width size of the sponge rings is increased, and the sealing sponge is prevented from being deformed under pressure;

2. the self-adjusting screw is arranged at the bottom of the control switch, so that the height of the control switch can be manually adjusted, and the device can be ensured to normally start a sealing function;

3. the hinged parts between the top cover, the bottom cover and the box body are moved from the outer side to the inner side, so that the top cover and the bottom cover are prevented from being separated;

4. the metal sheet is fixedly connected with the heating wire through the spring hook, so that the metal sheet is prevented from falling off due to external force vibration.

Drawings

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

Fig. 1 is an external view of the present invention;

FIG. 2 is a front exploded view of FIG. 1;

FIG. 3 is a rear exploded view of FIG. 1;

FIG. 4 is a schematic view of the engagement of the metal plate with the spring hook;

FIG. 5 is an enlarged view of the structure of the control switch;

in the figure: the vacuum heating device comprises a box body 1, a top cover 2, a bottom cover 3, a lower sealing sponge ring 4, an upper sealing sponge ring 5, an air suction hole 6, a metal sheet 7, a control switch 8, a vacuum operation indicator lamp 9, a buckle 10, a clamping block 11, a through hole 12, an air suction pump 13 and a heating wire 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a vacuum fresh-keeping machine, includes rectangular form box body 1, the top and the bottom of box body 1 are provided with top cap 2 and bottom 3 respectively, the upper surface of box body 1 with the lower surface of top cap 2 is provided with lower sealed sponge circle 4 and upper sealed sponge circle 5 that correspond each other, just inside aspirating hole 6 and the control switch 8 of being provided with of lower sealed sponge circle 4, the top of control switch 8 is run through top cap 2, the inside of box body 1 is provided with aspiration pump 13, the input of aspiration pump 13 with aspirating hole 6 links to each other, be provided with sheetmetal 7, heater strip 14, vacuum operation pilot lamp 9 in the box body 1 respectively, just sheetmetal 7 is located one side of lower sealed sponge circle 4, vacuum operation pilot lamp 9 is located the tip of lower sealed sponge circle 4.

Specifically, both sides of the upper sealing sponge ring 5 and the lower sealing sponge ring 4 are of an elliptical structure; so set up, establish to oval structure through the both sides with last sealed sponge circle 5 and lower sealed sponge circle 4, can increase the thickness dimension of last sealed sponge circle 5 and lower sealed sponge circle 4, guarantee the sponge circle width, make both ends buckle 10 and fixture block 11 combine each other, avoid appearing last sealed sponge circle 5 and lower sealed sponge circle 4 receive the condition of extrusion deformation, make the device can normal operating.

Specifically, the bottom end of the control switch 8 is provided with a screw which can be manually rotated through thread fit; so set up, when using, if the phenomenon that control switch 8 appears postponing unable start appears, can rotate the screw of control switch 8 bottom by oneself for calibration control switch 8's height ensures that the device can normally start and seal the function.

Specifically, the top cover 2, the bottom cover 3 and the box body 1 are fixed in a hinged manner, and the hinged position is positioned on the inner side of the edge of the box body 1; so set up, move inboard to the outside through the articulated position with between top cap 2, bottom 3 and the box body 1, can effectively prevent top cap 2, bottom 3 and the box body 1 that appear in the operation because of the separation scheduling problem that uses for a long time and cause.

Specifically, the cross section of the metal sheet 7 is of a Z-shaped structure, one end of the metal sheet 7 is connected with the heating wire 14 through a spring hook, and the other end of the metal sheet is connected with an electric wire of the circuit board through a fastener; so set up, avoid sheetmetal 7 to drop because of external force vibrations, the circuit board mentioned in this description is the common circuit control panel in the freshness protection machine, can control the heating of heater strip 14 through the circuit board, and its specific structure and theory of operation do not explain here in detail.

Specifically, two ends of the top cover 2 are provided with clamping blocks 11, and two ends of the box body 1 are provided with buckles 10 which are matched with the clamping blocks 11; so set up, through mutually supporting of fixture block 11 and fixture block 11, can be nimble pull down top cap 2 or fix on box body 1.

Specifically, at least two air pumping holes 6 are formed; so set up, through addding the quantity of aspirating hole 6, can increase the efficiency of bleeding the vacuum bag, improve the whole efficiency of device.

The working principle is as follows:

when the vacuum bag sealing device is used, the bag opening of the vacuum bag containing articles is placed between the upper sealing sponge ring 5 and the lower sealing sponge ring 4, the top cover 2 is fixed on the box body 1 through the mutual matching of the clamping block 11 and the clamping buckle 10, the air suction pump sucks air from the vacuum bag through the air suction hole 6, and after air in the vacuum bag is sucked out, the bag opening of the vacuum bag is heated and sealed through the metal sheet 7, so that the sealing operation is completed.

The utility model changes the two sides of the upper and lower sealing sponge rings from the diamond shape to the ellipse shape, thereby increasing the width dimension of the sponge rings and avoiding the sealing sponge from deforming under pressure; the self-adjusting screw is arranged at the bottom of the control switch 8, so that the height of the control switch 8 can be manually adjusted, and the device can be ensured to normally start a sealing function; the separation of the top cover 2 and the bottom cover 3 is avoided by moving the hinged parts between the top cover 2, the bottom cover 3 and the box body 1 from the outer side to the inner side; the metal sheet 7 is fixedly connected with the heating wire 14 through the spring hook, so that the metal sheet 7 is prevented from falling off due to external force vibration.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum fresh-keeping machine is characterized in that: including long banding box body, the top and the bottom of box body are provided with top cap and bottom respectively, the upper surface of box body with the lower surface of top cap is provided with lower sealed sponge circle and the upper seal sponge circle that corresponds each other, just inside aspirating hole and the control switch of being provided with of lower sealed sponge circle, control switch's top is run through the top cap, the inside of box body is provided with the aspiration pump, the input of aspiration pump with the aspirating hole links to each other, be provided with sheetmetal, heater strip, vacuum operation pilot lamp in the box body respectively, just the sheetmetal is located one side of lower sealed sponge circle, the vacuum operation pilot lamp is located the tip of lower sealed sponge circle.

2. A vacuum refreshing machine according to claim 1, characterized in that: the two sides of the upper sealing sponge ring and the lower sealing sponge ring are both of elliptical structures.

3. A vacuum refreshing machine according to claim 1, characterized in that: and the bottom end of the control switch is provided with a screw which can be manually rotated through thread fit.

4. A vacuum refreshing machine according to claim 1, characterized in that: the top cover and the bottom cover are fixed with the box body in a hinged mode, and the hinged portion is located on the inner side of the edge of the box body.

5. A vacuum refreshing machine according to claim 1, characterized in that: the cross section of the metal sheet is of a Z-shaped structure, one end of the metal sheet is connected with the heating wire through the spring hook, and the other end of the metal sheet is connected with the electric wire of the circuit board through the fastener.

6. A vacuum refreshing machine according to claim 1, characterized in that: the both ends of top cap are provided with the fixture block, the both ends of box body be provided with the buckle of fixture block mutually supporting.

7. A vacuum refreshing machine according to claim 1, characterized in that: the number of the air exhaust holes is at least two.