CN114872966B

CN114872966B - Vacuum sealing machine

Info

Publication number: CN114872966B
Application number: CN202111174515.XA
Authority: CN
Inventors: 秦欣宗; 邢井涛
Original assignee: Foshan Greenyellow Electric Technology Co ltd
Current assignee: Foshan Greenyellow Electric Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2023-10-31
Anticipated expiration: 2041-10-08
Also published as: CN114872966A

Abstract

The utility model discloses a vacuum sealing machine, which comprises a machine body, an upper cover, a control device, a vacuum pump body, a heating sealing device, a locking device and a buffer device, wherein a lower vacuum bin is arranged on the machine body; the bottom of the upper cover is provided with a first groove, the upper vacuum bin is movably arranged in the first groove, and the buffer device is arranged between the upper vacuum bin and the upper cover; the locking device comprises a locking block assembly and a transmission assembly which are matched with each other, the locking block assembly is arranged on the bottom surface of the upper cover, the upper end surface of the machine body is provided with a jack, the transmission assembly is arranged in the machine body and located on one side of the jack, and the transmission assembly is electrically connected with the control device. The vacuum sealing machine has the advantages of good locking effect, convenient operation, high safety, smooth vacuumizing and strong applicability.

Description

Vacuum sealing machine

Technical Field

The utility model relates to the field of household appliances, in particular to a vacuum sealing machine.

Background

The vacuum packaging product is produced by using vacuum air extraction equipment to extract air in a vacuum packaging bag, and then matching a hot melting device to perform hot melting sealing at the opening of the vacuum packaging bag so as to achieve the purpose of vacuum sealing in the vacuum packaging bag, thereby keeping the freshness and sanitation of food.

The vacuumizing sealing machine generally comprises an upper cover and a lower seat, wherein the rear side of the upper cover is hinged to the lower seat, the upper cover and/or the lower seat is provided with a vacuumizing device and a heat sealing assembly, and the upper cover and the lower seat are locked through a locking mechanism.

As shown in the chinese patent of application No. 202021305906.1, it discloses a vacuum sealing machine, which comprises a lower seat, an upper cover, a control device, a vacuum pump body and a heating sealing device, wherein the upper cover is movably covered on the lower seat, a lower vacuum cavity is arranged on the lower seat, an upper vacuum cavity is arranged at the position of the upper cover corresponding to the lower vacuum cavity, and an air tap communicated with the vacuum pump body is arranged in the lower vacuum cavity.

As shown by the vacuum sealing machine, the locking mechanism of the existing vacuum sealing machine on the market is generally buckle locking and most of the locking mechanism is manually unlocked and manually locked, the buckle locking is locked in place in one step, the friction resistance in the locking process is large, locking parts are easy to damage, the locking strength cannot be adjusted, the bag is easy to be pressed too tightly, the subsequent air suction is influenced, the air suction is particularly likely to be slow, the heating device is difficult to cool after long-term work, and the sealing effect is poor.

Disclosure of Invention

The utility model aims to provide a vacuum sealing machine which has attractive appearance, good locking effect, convenient operation, high safety, smooth vacuumizing and strong applicability, and at least can solve one of the problems.

According to one aspect of the utility model, a vacuum sealing machine is provided, which comprises a machine body, an upper cover, a control device, a vacuum pump body, a heating sealing device, a locking device and a buffer device, wherein a lower vacuum chamber is arranged on the machine body;

the bottom of the upper cover is provided with a first groove which is concave upwards and matched with the upper vacuum bin, the upper vacuum bin is movably arranged in the first groove, the buffer device is arranged between the upper vacuum bin and the upper cover, the buffer device comprises an elastic piece, one end of the elastic piece is propped against the first groove, and the other end of the elastic piece is propped against the upper vacuum bin;

the locking device comprises a locking block assembly and a transmission assembly which are matched with each other, the locking block assembly comprises a locking block, a pin shaft and a rolling wheel, the locking block is arranged at the bottom of the upper cover, the rolling wheel is rotatably arranged at the locking block through the pin shaft, the transmission assembly comprises a driving motor, a cam, a push rod, a first spring and a mounting seat, a jack for the locking block to be inserted is formed in the upper end face of the machine body, the transmission assembly is arranged in the machine body assembly and is located at one side of the jack, the driving motor is arranged at the mounting seat and is electrically connected with the control device, the cam is sleeved at the driving end of the driving motor and is matched with the push rod, the push rod is movably arranged at the mounting seat, the other end of the push rod can extend into the locking block and is matched with the rolling wheel, the first spring is arranged at the lower part of the mounting seat, one end of the first spring is abutted against the push rod, and the other end of the first spring is abutted against the mounting seat.

Therefore, the vacuum sealing machine with a brand new structure is provided with the locking device, the locking device can realize automatic locking and automatic unlocking under the control of the control device, and compared with the traditional manual locking and manual unlocking in the market, the operation is more convenient; more importantly, the locking process of the vacuum sealing machine can be performed in two steps, and in the first step, when vacuumizing is needed, the vacuum sealing machine is put into a bag, an upper cover is closed, the control device controls the transmission assembly to work, the driving motor drives the cam to rotate, and the cam rotates to push the push rod to be inserted into the locking block; secondly, after the vacuumizing is finished, the transmission assembly continuously drives the push rod to push forwards and tightly press the rolling wheel, so that the locking block moves along the depth direction of the jack to pull down the upper cover, the automatic locking of the upper cover is finished, at the moment, the control device controls the heating sealing device to work again, the safety is high, the locking process is smooth, and the follow-up vacuumizing is convenient; in addition, the upper cover is provided with a buffer device, and the upper vacuum bin can shrink inwards of the cover body assembly when the machine is locked and vacuumized, so that the pressing resistance is reduced, and meanwhile, the situation that the bag is pressed too tightly after the upper cover is completely locked can be avoided, and the subsequent vacuumization is ensured to be smoothly carried out.

In some embodiments, the locking piece is provided with a first through hole, the rolling wheel is rotatably installed in the first through hole through the pin shaft, a gap matched with the push rod exists between the rolling wheel and the locking piece, and the front end of the push rod is provided with an inclined plane matched with the rolling wheel. Therefore, the first through hole is convenient for the insertion of the push rod to drive the locking block to move; the inclined plane can ensure that the push rod slowly drives the locking block to move downwards, so that the locking process is smoother, and the locking force is gradually changed from small to large, so that the step-by-step locking and even the step-by-step locking are realized.

In some embodiments, the upper cover comprises a cover body assembly, the upper vacuum bin is movably arranged on the lower end face of the cover body assembly, the first groove is formed in the bottom of the cover body assembly, the first groove is internally provided with a second groove which is concave upwards, one end of the elastic piece extends into the second groove and abuts against the bottom of the second groove, and the other end of the elastic piece abuts against the upper vacuum bin. Therefore, the second groove is convenient for the installation of the elastic piece and can ensure that the installation of the upper vacuum bin is not influenced.

In some embodiments, the upper cover further comprises a limiting portion, the upper vacuum bin is in limiting fit with the cover body assembly through the limiting portion, the limiting portion comprises a limiting clamping block, the cover body assembly is provided with a limiting hole, and the limiting clamping block can penetrate through the limiting hole and is in limiting fit with the edge of the limiting hole. Therefore, the limiting clamping block can limit the upper vacuum bin after the upper cover is covered, and the bin opening can be locked when vacuumizing due to the fact that the limiting part is limiting even if the upper vacuum bin is movable, so that the sealing is more reliable.

In some embodiments, the vacuum sealing machine further comprises a safety protection assembly, the cover assembly comprises a surface cover, an inner cover and a connecting block, the surface cover is sleeved on the periphery of the inner cover, the upper vacuum chamber assembly is arranged on the lower end face of the inner cover, the connecting block is installed on the inner cover, the inner cover is rotatably connected with the machine body through the connecting block, the safety protection assembly comprises a fixing frame, a micro switch and a pressure lever, the fixing frame is installed in the machine body, the micro switch is installed on the fixing frame and electrically connected with the control device, the pressure lever is movably installed on the fixing frame, one end of the pressure lever is matched with the connecting block, and the other end of the pressure lever is matched with the micro switch. Therefore, the vacuum sealing machine is provided with the safety protection component, and the working principle of the safety protection component is as follows: the clamp plate movably installs in the mount, and after the upper cover lid was closed, can drive the connecting block and compress tightly the one end of depression bar, the depression bar swing, and the other end makes micro-gap switch closed, triggers micro-gap switch and sends the signal to controlling means, controlling means control locking device, heating closing device work. The safety protection assembly can ensure that the locking and heating can be started after the upper cover is covered, so that the risk of scalding caused by the operation of the heating sealing device due to the false touch under the condition of uncovering is solved, and the safety is greatly improved.

In some embodiments, the machine body comprises a shell and a face shell, the face shell is mounted on the upper end face of the shell, a containing cavity is formed between the shell and the upper end face, the vacuum pump body and the transmission assembly are arranged in the containing cavity, the control device comprises a control circuit board and a control panel, the control panel is arranged in the face shell, the control circuit board is arranged in the containing cavity, and the control panel is electrically connected with the control circuit board.

In some embodiments, the vacuum sealing machine further comprises a juice receiving box and a bag pressing buckle, the juice receiving box is detachably installed in the lower vacuum bin, a plurality of installing columns used for installing the bag pressing buckle are arranged at the edge of the juice receiving box, the installing columns are sequentially arranged at intervals along the length direction of the juice receiving box, an air tap communicated with the vacuum pump body is arranged on the lower vacuum bin, a second through hole communicated with the air tap is formed in the center of the installing column, the bag pressing buckle is movably sleeved on the installing columns, and one end of the bag pressing buckle extends with a cutting strip along the width direction of the juice receiving box. Therefore, the juice receiving box can collect juice flowing out of the bag when vacuumizing so as to clean; the juice collecting box is provided with a plurality of bag pressing buckles, the bottom of the bag mouth of the bag to be vacuumized can be pressed, and the cutting is inserted into the bag mouth, so that the problem that the bag is difficult to be placed in a positive position due to tilting (particularly rolling) of the bag when the bag is placed is solved, and the vacuumizing is invalid is solved.

In some embodiments, the vacuum sealing machine further comprises an outer suction device, the outer suction device comprises an outer suction assembly and an interface assembly, the outer suction assembly is detachably connected with the interface assembly, the outer suction assembly comprises an outer suction connector and an outer suction pipeline, the outer suction pipeline is connected with the outer suction connector, the interface assembly comprises an interface valve head, an interface valve seat, a second spring, a plug, a first sealing ring and a second sealing ring, the interface valve seat is installed in the machine body and is communicated with the lower vacuum bin, the interface valve head is installed at the upper end of the interface valve seat and is sealed through the first sealing ring, a first channel is formed in the center of the interface valve seat, a second spring is arranged in the first channel and the upper end of the second spring is abutted against the plug, a second channel is formed in the center of the interface valve head, the plug is installed in the first channel and the upper end face of the first channel is abutted against the interface valve head, the outer suction connector is detachably installed in the interface valve head and is sealed through the second sealing ring, an air nozzle rod extends at the bottom of the outer suction connector, and the air nozzle rod can penetrate through the second channel and be abutted against the plug. Therefore, when the external suction is needed, the external suction connector is rotationally buckled in the interface valve head, and the other end of the external suction connector is communicated with the air pump and other equipment through the external suction pipeline.

In some embodiments, the interface valve head is provided with a limiting clamping groove, the outer wall of the outer drawing connector is provided with a limiting buckle in limiting fit with the limiting clamping groove, and the outer drawing connector is detachably matched with the interface valve head through the limiting buckle. Therefore, when the outer draw-out connector is installed, the limit clamping block of the outer draw-out connector is only required to be screwed in along the limit clamping groove, and the outer draw-out connector is convenient to assemble and disassemble and convenient to use.

In some embodiments, the vacuum sealing machine further comprises supporting feet and foot pads, the foot pads are arranged at four corners of the bottom of the machine body, the supporting feet are rotatably arranged at the bottom of the machine body and are positioned at two sides of the bottom of the machine body corresponding to the lower vacuum bin, and the height of the foot pads is lower than the height of the supporting feet after the supporting feet are completely opened. Therefore, the supporting legs can be opened when vacuumizing, the front end of the machine body is higher than the rear end of the machine body, and the bag opening part of the bag when vacuumizing is higher than the bag body part, so that the vacuum sealing of big bags of food is more convenient, and meanwhile, the juice flowing can be effectively reduced.

The utility model has the beneficial effects that:

the utility model provides a vacuum sealing machine with a brand new structure, which has the following advantages:

1. the locking device is arranged, the locking device can realize automatic locking and automatic unlocking under the control of the control device, and compared with the traditional manual locking and manual unlocking in the market, the operation is more convenient; more importantly, the locking process of the vacuum sealing machine can be carried out in two steps, firstly, when vacuumizing is needed, the vacuum sealing machine is put into a bag, the upper cover is closed, the control device controls the transmission assembly to work, the driving motor drives the cam to rotate, and the cam rotates to push the push rod to be inserted into the locking block; secondly, after the vacuumizing is finished, the transmission assembly continuously drives the push rod to push forwards and tightly press the rolling wheel, so that the locking block moves along the depth direction of the jack to pull down the upper cover, the automatic locking of the upper cover is finished, at the moment, the control device controls the heating sealing device to work again, the safety is high, the locking process is smooth, and the follow-up vacuumizing is convenient;

2. the upper cover is provided with the buffer device, and the aim is that after the machine is locked, the upper vacuum bin can shrink inwards of the cover body assembly when vacuumizing is performed, so that the pressing resistance is reduced, the bag is prevented from being pressed too tightly, and the subsequent vacuumizing is ensured to be performed smoothly;

3. the safety protection assembly is arranged, so that the locking and heating can be started only after the upper cover is covered, the problem that the heating sealing device works due to false touch under the condition of uncovering is solved, the risk of scalding is avoided, and the safety is greatly improved;

4. the juice collecting box and the bag pressing buckle are arranged, and the juice collecting box can collect juice flowing out of the bag when vacuumizing so as to clean; the bag pressing buckle can press the bottom of the bag mouth of the bag to be vacuumized, and the cutting is inserted into the bag mouth, so that the problem that the bag is tilted (particularly the rolled bag) to be difficultly placed at the correct position when the bag is placed, and the vacuumizing is invalid is solved;

5. when the external suction device is needed, the external suction connector is rotationally buckled in the interface valve head, and the other end of the external suction connector is communicated with the air pump and other equipment through the external suction pipeline.

In conclusion, the vacuum sealing machine has the advantages of attractive appearance, good locking effect, convenience in operation, high safety, smoothness in vacuumizing, strong applicability and the like.

Drawings

FIG. 1 is a schematic perspective view of a vacuum sealing machine according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing a second perspective view of a vacuum sealing machine according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of the vacuum sealer shown in FIG. 1 after the upper cover is opened;

FIG. 4 is a schematic view of a part of the explosion structure of the vacuum sealer shown in FIG. 1;

FIG. 5 is a schematic view of a portion of the vacuum sealer shown in FIG. 4;

FIG. 6 is an enlarged schematic view of the vacuum sealer shown in FIG. 4 at A;

FIG. 7 is a schematic perspective view of the vacuum sealing machine shown in FIG. 1 with a part of the structure omitted;

fig. 8 is a schematic perspective view of a locking device of a vacuum sealing machine according to an embodiment of the present utility model;

FIG. 9 is one of the exploded views of the locking device of FIG. 8;

FIG. 10 is a second schematic exploded view of the locking device of FIG. 8;

FIG. 11 is a schematic perspective view of a cam of the locking device of FIG. 10;

FIG. 12 is one of the perspective views of the upper cover of the vacuum sealing machine shown in FIG. 1;

FIG. 13 is a second perspective view of the upper cover of the vacuum sealing machine shown in FIG. 1;

FIG. 14 is a schematic view of an exploded construction of the upper cover of FIG. 12;

FIG. 15 is one of the perspective views of the inner lid of the upper lid shown in FIG. 14;

fig. 16 is an enlarged structural view of the inner cap at B shown in fig. 15;

FIG. 17 is a second perspective view of the inner lid of the upper lid shown in FIG. 14;

FIG. 18 is one of the perspective views of the upper vacuum chamber of the upper lid of FIG. 14;

FIG. 19 is a second perspective view of the upper vacuum chamber of the upper lid of FIG. 14;

FIG. 20 is a schematic view of the vacuum sealing machine with safety protection shown in FIG. 1, with parts omitted;

FIG. 21 is one of the perspective views of the safety shield assembly of the vacuum sealer shown in FIG. 20;

FIG. 22 is a schematic view of an exploded view of the safety shield assembly of FIG. 21;

FIG. 23 is a second perspective view of the safety shield assembly of the vacuum sealing machine shown in FIG. 20;

FIG. 24 is a schematic perspective view of an outer suction device of the vacuum sealer shown in FIG. 1;

FIG. 25 is a schematic perspective view of the outer suction device of FIG. 24 with a portion of the outer suction device omitted;

fig. 26 is a schematic cross-sectional view of the outer pumping device of fig. 25.

Reference numerals in fig. 1 to 26: 1-a machine body; 2-an upper cover; 3-locking means; 4-a safety shield assembly; 5-a juice receiving box; 6, pressing a bag buckle; 7-an external pumping device; 8-a control device; 9-a vacuum pump body; 10-heating the sealing device; 11-a housing; 12-a face shell; 13-a second decorative strip; 14-a lower vacuum bin; 100-supporting feet; 200-foot pads; 21-a cover assembly; 22-upper vacuum cartridge assembly; 23-buffer means; 24-a first guide; 25-a second guide; 26-a limiting part; 27-sealing and pressing strips; 31-a locking block assembly; 32-a transmission assembly; 41-fixing frame; 42-a micro switch; 43-pressing rod; 44-rotating shaft; 45-limiting columns; 51-mounting posts; 61-cutting; 71-an outer pumping assembly; 72-interface assembly; 81-a control circuit board; 82-a control panel; 121-a jack; 141-an air tap; 211-face cover; 212-inner cap; 213-a first decorative strip; 214-a handle; 215-connecting blocks; 221-upper vacuum bin; 222-annular foam; 231-an elastic member; 241-first guide post; 242-a first guide cylinder; 251-a second guide post; 252-a second guide cylinder; 261-limiting clamping blocks; 311-locking blocks; 312-pin shafts; 313-rolling wheel; 321-a drive motor; 322-cam; 323-push rod; 324-a first spring; 325-mounting base; 431-sleeve; 511-a second via; 711-outer extraction joint; 712-an outer suction pipe; 721-interface valve head; 722-interface valve seat; 723-a second spring; 724-plug; 725-first seal ring; 726-a second seal ring; 212 a-a first groove; 212 b-a second groove; 212 c-a limiting hole; 212 d-a first mounting slot; 221 a-a first limit groove; 221 b-a second mounting groove; 311 a-a first via; 322 a-limit groove; 325 a-a third mounting slot; 325 b-a guide plate; 325 c-limit baffles; 325 d-a limit column; 323 a-stop; 323 b-limiting block; 323 c-inclined plane; 711 a-an air tap lever; 711 b-limit buckle; 721 a-a second channel; 721 b-limit clamping groove; 722 a-first pass.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Fig. 1 to 8 schematically show a vacuum sealing machine according to an embodiment of the present utility model.

As shown in fig. 1 to 8, the vacuum sealing machine comprises a machine body 1, an upper cover 2, a control device 8, a vacuum pump body 9 and a heating sealing device 10. The machine body 1 is provided with a lower vacuum chamber 14, an upper vacuum chamber 221 is arranged at the position of the upper cover 2 corresponding to the lower vacuum chamber, and the lower vacuum chamber 14 and the upper vacuum chamber 221 form a vacuum chamber for exhausting air. The lower vacuum bin 14 is communicated with the vacuum pump body 9 arranged in the machine body 1, and the heating sealing device 10 is arranged on the machine body 1 and is positioned on the outer side of the lower vacuum bin 14. The vacuum pump body 9 and the heating sealing device 10 are electrically connected with the control device 8. One end of the upper cover 2 is rotatably connected with the machine body 1, and the other end of the upper cover can be covered on the upper end of the lower vacuum bin 14.

As shown in fig. 1 to 11, the vacuum sealing machine of the present embodiment further includes a locking device 3. The locking device 3 comprises a locking block 311 component 31 and a transmission component 32 which are matched with each other, the locking block 311 component 31 of the locking device 3 is arranged on the bottom surface of the upper cover 2 and is positioned at two ends of the length direction of the upper cover 2, a jack 121 for inserting the locking block 311 component 31 is formed in the upper end surface of the machine body 1, the transmission component 32 is arranged in the machine body 1 and is positioned at one side of the jack 121, and the transmission component 32 is electrically connected with the control device 8.

As shown in fig. 8 to 11, the lock block assembly 31 includes a lock block 311, a pin shaft 312, and a rolling wheel 313. The locking piece 311 is mounted at the bottom of the cover assembly, and the rolling wheel 313 is rotatably mounted on the locking piece 311 through a pin shaft 312. The transmission assembly 32 includes a drive motor 321, a cam 322, a push rod 323, a first spring 324, and a mount 325. The driving motor 321 is mounted on the mounting base 325, and the cam 322 is sleeved on the driving end of the driving motor 321 and is matched with the push rod 323. The push rod 323 is movably mounted on the mounting seat 325, and the other end of the push rod 323 can extend into the locking block 311 to be matched with the rolling wheel 313. The first spring 324 is mounted on the mounting seat 325 and located below the push rod 323, one end of the first spring 324 abuts against the push rod 323, and the other end abuts against the mounting seat 325.

The driving motor 321 of the present embodiment is an electric motor, and the cam 322 is fitted around the outer periphery of the output shaft.

The locking block 311 is provided with a first through hole 311a, the rolling wheel 313 is rotatably installed in the first through hole 311a through a pin shaft 312, and a gap matched with the push rod 323 exists between the rolling wheel 313 and the locking block 311. Thus, the push rod 323 is convenient to insert, and the locking block 311 is driven to move.

The mounting base 325 is provided with a third mounting groove 325a, and the first spring 324 is mounted in the third mounting groove 325 a. Thereby, the mounting of the first spring 324 is facilitated.

The bottom of the push rod 323 extends downward to a stop 323a in the third mounting groove 325a, one end of the first spring 324 abuts against the stop 323a, and the other end abuts against the groove wall of the third mounting groove 325 a. Therefore, pushing the push rod 323 forward can drive the stop block 323a to compress the first spring 324, and after unlocking, the first spring 324 can push the stop block 323a to drive the push rod 323 to reset.

The mounting base 325 is provided with guide plates 325b extending upward, and the guide plates 325b are located on both sides of the push rod 323 and slidably engage with the push rod 323. Thus, the guide plate 325b plays a guide role, ensuring smooth operation of the push rod 323.

The mounting seat 325 is provided with a limit baffle 325c, the push rod 323 is provided with a limit block 323b matched with the limit baffle 325c, and the limit block 323b extends along two sides of the push rod 323. Therefore, the limit baffle 325c limits the limit block 323b, so as to prevent the push rod 323 from exceeding the stroke in the resetting process.

The push rod 323 is provided at its front end with a downward inclined surface 323c that cooperates with the rolling wheel 313 and gradually increases in thickness from the front end to the rear end. Therefore, the inclined plane 323c can ensure that the push rod 323 slowly drives the locking block 311 to move downwards, so that the locking process is smoother, and the locking force is gradually changed from small to large, so that the stepwise or even gradual locking is realized; the specific step-by-step process and step-by-step number can be set according to actual needs, and two-step or even multi-step locking is realized.

The mounting seat 325 is provided with a limit post 325d, the bottom of the cam 322 is provided with a circular arc limit groove 322a taking the output shaft of the driving motor 321 as the center, and the limit groove 322a is in limit fit with the limit post 325 d. Thus, the stroke of the cam 322 can be limited, and the overrun can be avoided.

The utility model provides a locking device 3 with a brand new structure, and the working principle of the locking device 3 is as follows: the driving motor 321 works to drive the cam 322 to rotate, the cam 322 rotates to push the push rod 323 to move back and forth, the first spring 324 is compressed and contracted when the push rod 323 extends, and when the cam 322 is reset, the first spring 324 pushes the push rod 323 to reset and retract.

The push rod 323 is pushed forward to extend into the locking block 311 to press the rolling wheel 313, thereby completing locking. The locking block assembly 31 and the transmission assembly 32 are matched to realize automatic locking and unlocking, and the rolling wheel 313 is arranged, so that the locking process is smooth, and the friction resistance can be greatly reduced.

As shown in fig. 12 to 19, the upper cover 2 of the present embodiment includes a cover assembly 21 and an upper vacuum chamber assembly 22. The upper vacuum cartridge assembly 22 includes an upper vacuum cartridge 221. The upper vacuum chamber 221 is movably mounted to the lower end surface of the cover assembly 21. The bottom of the cover assembly 21 is provided with a first groove 212a which is concave upwards and matched with the upper vacuum bin 221, the upper vacuum bin 221 is movably arranged in the first groove 212a, and a buffer device 23 is arranged between the upper vacuum bin 221 and the first groove.

The buffer device 23 includes an elastic member 231, one end of the elastic member 231 abuts against the first groove 212a, and the other end abuts against the upper vacuum chamber 221. The elastic member 231 of the present embodiment is a spring.

The first groove 212a is provided with a second groove 212b which is concave upwards, one end of the elastic piece 231 extends into the second groove 212b and abuts against the bottom of the second groove 212b, and the other end abuts against the upper vacuum bin 221. Thereby, the second groove 212b facilitates the installation of the elastic member 231 and can ensure that the installation of the upper vacuum chamber 221 is not affected.

A first limit groove 221a in limit fit with the elastic member 231 is formed at the top of the upper vacuum chamber 221. Thereby, the elastic member 231 can be restrained.

The upper cover 2 further includes a first guide portion 24, and the first guide portion 24 includes a first guide post 241 disposed at the top of the upper vacuum chamber 221, and a first guide cylinder 242 matched with the first guide post 241 and disposed on the cover assembly 21. In assembly, the first guide cylinder 242 of the cover assembly 21 is sleeved on the outer periphery of the first guide column 241 at the top of the upper vacuum chamber 221, however, the first guide cylinder 242 may be arranged at the top of the upper vacuum chamber 221 and the first guide column 241 may be arranged at the bottom of the upper cover 2 assembly as required. Thus, the first guide portion 24 functions as a guide, ensuring that the upper vacuum chamber 221 can only move up and down.

The upper cover 2 further includes a second guiding portion 25, where the second guiding portion 25 includes a second guiding column 251 disposed on the cover assembly 21, and a second guiding cylinder 252 matched with the second guiding column 251 and disposed on the top of the upper vacuum chamber 221, and the second guiding column 251 is disposed in the second groove 212b and located on one side of the elastic member 231. In assembly, the second guide cylinder 252 at the top of the upper vacuum chamber 221 is sleeved on the outer periphery of the second guide column 251 at the bottom of the cover assembly 21, and of course, the second guide cylinder 252 may be disposed at the bottom of the cover assembly 21 and the second guide column 251 may be disposed at the top of the upper vacuum chamber 221 as required. Thus, the provision of the second guide 25 further improves the stability of the upper vacuum chamber 221 when it is moved.

The upper cover 2 further comprises a limiting part 26, and the upper vacuum bin 221 is in limiting fit with the cover body assembly 21 through the limiting part 26. The limiting portion 26 includes a limiting block 261, an extending direction of the limiting block 261 is consistent with an extending direction of the first guide post 241, a limiting hole 212c is formed in the cover assembly 21, and the limiting block 261 can pass through the limiting hole 212c and is in limiting fit with an edge of the limiting hole 212 c. The assembled upper vacuum bin 221 is suspended from the cover assembly 21 by the limiting clamping blocks 261 under the action of self gravity. Therefore, the limiting clamping block 261 can limit the upper vacuum bin 221 after the upper cover 2 is covered, and the bin opening can be locked more reliably due to the fact that the limiting part 26 is limited during vacuumizing.

The upper cover 2 further comprises a sealing pressing strip 27, a first mounting groove 212d is formed in the bottom of the cover body assembly 21, the first mounting groove 212d is located on one side of the first groove 212a, and the sealing pressing strip 27 is mounted in the first mounting groove 212d. The seal bead 27 of the present embodiment may be a high temperature resistant sealing tape. Thus, the sealing bead 27 can press the bag from top to bottom in the heat sealing process, thereby ensuring the smooth sealing operation.

The upper vacuum chamber assembly 22 further comprises an annular foam 222, the bottom of the upper vacuum chamber 221 is provided with a second mounting groove 221b, and the annular foam 222 is mounted in the second mounting groove 221b. The annular foam 222 of the present embodiment may be PU foam. Thus, the annular foam 222 acts as a seal when vacuumized.

The lid assembly 21 of the present embodiment includes a face cover 211, an inner cover 212, a first decorative strip 213, a handle 214, and a connection block 215. The surface cover 211 is sleeved on the outer periphery of the inner cover 212, the upper vacuum bin 221 is arranged on the lower end face of the inner cover 212, the first decorative strip 213 is arranged on the edge of the surface cover 211, and the handle 214 is arranged on the upper end face of the surface cover 211. The connection block 215 is connected to the inner cap 212, and may be integrally connected. Thereby, the upper cover 2 can be hinged with the machine body 1 through the connecting block 215, so that the upper cover 2 can be conveniently rotated.

The utility model provides an upper cover 2 with a brand new structure, which is mainly applied to a vacuum sealing machine, and is movably connected with a main body of the vacuum sealing machine, when the upper cover 2 is required to be used, the upper vacuum bin 221 is aligned with the lower vacuum bin 11; because the buffer device 23 is arranged on the upper cover 2, the aim is that after the machine is locked, when the machine is vacuumized, the upper vacuum bin 221 contracts inwards towards the cover body assembly 21, so that the pressing resistance is reduced, the bag is prevented from being pressed too tightly, and the subsequent vacuumization is ensured to be carried out smoothly.

As shown in fig. 20 to 23, the vacuum sealing machine of the present embodiment further includes a safety protection component 4. The safety protection assembly 4 comprises a fixing frame 41, a micro switch 42 and a pressing rod 43. The fixing frame 41 is installed in the machine body 1, the micro switch 42 is installed in the fixing frame 41 and electrically connected with the control device 4, the pressing rod 43 is movably installed in the fixing frame 41, one end of the pressing rod 43 is matched with the connecting block 25, and the other end of the pressing rod 43 is matched with the micro switch 42.

Therefore, the utility model provides a vacuum sealing machine with a brand new structure, which is provided with a safety protection component 4, wherein the working principle of the safety protection component 4 is as follows: the pressing plate is movably arranged on the fixing frame 41, when the upper cover 2 is covered, the connecting block 25 is driven to press one end of the pressing rod 43, the pressing rod 43 swings, the other end of the pressing rod makes the micro switch 42 close, the micro switch 42 is triggered to send a signal to the control device 4, and the control device 4 controls the heating sealing device 6 to work. The safety protection component 4 can ensure that heating can be started after the upper cover 2 is covered, so that the risk of scalding caused by the operation of the heating sealing device 6 due to false touch under the condition of uncovering is solved, and the safety is greatly improved.

The fixing frame 41 is provided with a rotating shaft 44, the middle part of the pressing rod 43 is provided with a sleeve 431 matched with the rotating shaft 44, and the pressing rod 43 is sleeved on the periphery of the rotating shaft 44 through the sleeve 431. Thereby facilitating the installation of the presser bar 43.

The fixing frame 41 is also provided with a limit post 45, and the limit post 45 is positioned at one side of the rotating shaft 44 and is in limit fit with the pressure lever 43. Thereby, the rotation of the pressing lever 43 can be limited, and the excessive amplitude can be avoided.

The machine body 1 comprises a shell 11 and a surface shell 12, the surface shell 12 is arranged on the upper end face of the shell 11, a containing cavity is formed between the shell and the surface shell, and a jack 121 for inserting a locking block assembly 31 and a lower vacuum bin 14 are arranged on the surface shell 12. The vacuum pump body 5, the safety protection component 4 are arranged in the accommodating cavity, the control device 4 comprises a control circuit board 41 and a control panel 42, the control panel 42 is arranged on the face shell 12, the control circuit board 41 is arranged in the accommodating cavity, and electronic components such as the control panel 42, the driving motor 321, the micro switch 42 and the like are electrically connected with the control circuit board 41. The control panel 42 of the present embodiment may be a touch screen. Therefore, the control panel 42 can control the control circuit board 41, so that the control of each component is realized, the control is convenient, and the practicability is high.

The body 1 further includes a second decorative strip 13, and the second decorative strip 13 is disposed at an edge of the housing 11. Thus, the appearance is good.

As shown in fig. 4 to 6, the vacuum sealing machine of the present embodiment further includes a juice receiving box 5 and a bag pressing buckle 6. The juice receiving box 5 is detachably installed in the lower vacuum bin 14, the surface of the lower vacuum bin 14 is provided with a mounting groove matched with the juice receiving box 5, and the mounting groove is communicated with the vacuum pump body 9 through an air tap 141, an air pipe and the like arranged on the side wall. The edge of the juice collecting box 5 is provided with a plurality of mounting columns 51 for mounting the bag pressing buckles 6, the mounting columns 51 are sequentially arranged at intervals along the length direction of the juice collecting box 5, the center of the mounting column 51 is provided with a second through hole 511 communicated with the air tap 141, the bag pressing buckles 6 are movably sleeved on the mounting columns 51, and one ends of the bag pressing buckles 6 extend with inserting strips 61 along the width direction of the juice collecting box 5. Thus, the juice receiving box 5 can collect juice flowing out of the bag when vacuumizing so as to clean; the juice collecting box 5 is provided with a plurality of bag pressing buckles 6 which can press the bottom of the bag mouth of the bag to be vacuumized, and the cutting 61 is inserted into the bag mouth, so that the problem that the bag is difficult to be placed in a positive position due to tilting (particularly rolling) of the bag when the bag is placed is solved, and the vacuumizing is invalid is solved.

As shown in fig. 24 to 26, the vacuum sealing machine of the present embodiment further includes an outer suction device 7. The outer suction device 7 comprises an outer suction assembly 71 and an interface assembly 72. The outer suction assembly 71 is detachably connected to the interface assembly 72. The outer suction assembly 71 includes an outer suction fitting 711 and an outer suction pipe 712, and the outer suction pipe 712 is connected to the outer suction fitting 711. The interface assembly 72 includes an interface valve head 721, an interface valve seat 722, a second spring 723, a plug 724, a first seal 725, and a second seal 726. An interface valve seat 722 is installed in the machine body 1 and is communicated with the lower vacuum chamber 14, and an interface valve head 721 is installed at the upper end of the interface valve seat 722 and is sealed by a first sealing ring 725. The center of the interface valve seat 722 is provided with a first channel 722a, and a second spring 723 is arranged in the first channel 722a and the upper end of the second spring abuts against a plug 724. The center of the interface valve head 721 is provided with a second channel 721a, a plug 724 is mounted on the first channel 722a, and the upper end surface of the plug 724 abuts against the interface valve head 721. The outer suction fitting 711 is removably mounted to the interface valve head 721 and sealed by a second seal ring 726. The bottom of the outer suction fitting 711 extends with a nipple 711a, and the nipple 711a can extend through the second passageway 721a to abut the plug 724. The interface valve head 721 is provided with a limiting clamping groove 721b, the outer wall of the outer extraction joint 711 is provided with a limiting buckle 711b in limiting fit with the limiting clamping groove 721b, and the outer extraction joint 711 is detachably matched with the interface valve head 721 through the limiting buckle 711 b. Therefore, when external suction is required, the external suction connector 711 is rotationally engaged with the interface valve head 721, at this time, the lower end portion of the air tap lever 711a presses the plug 724 to compress the second spring 723, the lower end portion of the air tap lever 711a extends into the first channel 722a, and the upper end portion of the air tap lever 711a is connected to a suction pump or other equipment through the external suction pipe 712 to suck air, thereby sucking liquid in the juice receiving box 5 or sucking air in the lower vacuum chamber 14. The external suction device 7 is convenient to use and wide in application range.

As shown in fig. 2, the vacuum sealing machine of the present embodiment further includes a supporting foot 100 and a cushion foot 200. The supporting feet are rotatably arranged at the bottom of the machine body 1 and are positioned at two sides of the bottom of the machine body 1 corresponding to the lower vacuum bin 14. The foot pad 200 is disposed at four corners of the bottom of the body 1 and has a height lower than that of the opened supporting foot 100. Therefore, the supporting legs 100 can be opened when vacuumizing, the front end of the machine body 1 is higher than the rear end, and the bag opening part of the bag when vacuumizing is higher than the bag body part, so that the purpose is that the vacuum sealing of big bags of food is more convenient, and meanwhile, the juice flowing can be effectively reduced.

1. the locking device 3 is arranged, the locking device 3 can realize automatic locking and automatic unlocking under the control of the control device 8, and compared with the traditional manual locking and manual unlocking in the market, the operation is more convenient; more importantly, the locking process of the vacuum sealing machine can be performed in two steps, firstly, when vacuumizing is needed, the vacuum sealing machine is put into a bag, the upper cover 2 is closed, the control device 8 controls the transmission component 32 to work, the driving motor 321 drives the cam 322 to rotate, the cam 322 rotates to push the push rod 323, and the front end of the inclined plane 323c of the push rod 323 is inserted into the locking block 311; secondly, after the vacuumizing is completed, the transmission assembly 32 continues to drive the push rod 323 to push forwards, and the rear part of the inclined plane 323c or even the rod body part of the push rod 323 compresses the rolling wheel 313, so that the locking block 311 moves along the depth direction of the jack 121 to pull down the upper cover 2, and the automatic locking of the upper cover 2 is completed, at this time, the control device 8 controls the heating sealing device 10 to work again, so that the safety is high, the locking process is smooth, and the vacuumizing and sealing work can be smoothly carried out;

2. the upper cover 2 is provided with the buffer device 23, and the purpose of the buffer device is that after the machine is locked, the upper vacuum bin 221 can shrink inwards of the cover body assembly 21 when vacuumizing, so that the pressing resistance is reduced, the bag is prevented from being pressed too tightly, and the subsequent vacuumizing is ensured to be carried out smoothly;

3. the safety protection assembly 4 is arranged, so that the locking and heating can be started only after the upper cover 2 is covered, the problem that the heating sealing device 10 works due to false touch under the condition of uncovering is solved, the risk of scalding is avoided, and the safety is greatly improved;

4. the juice collecting box 5 and the bag pressing buckle 6 are arranged, and the juice collecting box 5 can collect juice flowing out of the bag when vacuumizing so as to clean; the bag pressing buckle 6 can press the bottom of the bag mouth of the bag to be vacuumized, and the cutting 61 is inserted into the bag mouth, so that the problem that the bag is difficult to be placed in a positive position due to tilting (particularly rolling) of the bag when the bag is placed is solved, and the vacuumizing is invalid is solved;

5. when the external suction device 7 is needed, the external suction connector 711 is rotationally buckled in the interface valve head 721, and the other end of the external suction connector 711 is communicated with equipment such as an air pump through the external suction pipeline 712.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims

1. The vacuum sealing machine is characterized by comprising a machine body (1), an upper cover (2), a control device (8), a vacuum pump body (9), a heating sealing device (10), a locking device (3) and a buffer device (23), wherein a lower vacuum bin (14) is arranged on the machine body (1), an upper vacuum bin (221) is arranged at a position, corresponding to the lower vacuum cavity, of the upper cover (2), the lower vacuum bin (14) and the upper vacuum bin (221) form a vacuum cavity for exhausting, the lower vacuum bin (14) is communicated with the vacuum pump body (9) arranged in the machine body (1), the heating sealing device (10) is arranged on the outer side of the machine body (1) and is positioned on the lower vacuum bin (14), the vacuum pump body (9) and the heating sealing device (10) are electrically connected with the control device (8), one end of the upper cover (2) is rotatably connected with the machine body (1), and the other end of the upper cover can be covered on the upper end of the lower vacuum bin (14);

the bottom of the upper cover (2) is provided with a first groove (212 a) which is concave upwards and matched with the upper vacuum bin (221), the upper vacuum bin (221) is movably arranged in the first groove (212 a), the buffer device (23) is arranged between the upper vacuum bin (221) and the upper cover (2), the buffer device (23) comprises an elastic piece (231), one end of the elastic piece (231) is propped against the first groove (212 a), and the other end of the elastic piece (231) is propped against the upper vacuum bin (221);

the locking device (3) comprises a locking block assembly (31) and a transmission assembly (32) which are matched with each other, the locking block assembly (31) comprises a locking block (311), a pin shaft (312) and a rolling wheel (313), the locking block (311) is arranged at the bottom of the upper cover (2), the rolling wheel (313) is rotatably arranged at the locking block (311) through the pin shaft (312), the transmission assembly (32) comprises a driving motor (321), a cam (322), a push rod (323), a first spring (324) and a mounting seat (325), a jack (121) for inserting the locking block (311) is arranged at the upper end face of the machine body (1), the transmission assembly (32) is arranged in the machine body (1) assembly and is positioned at one side of the jack (121), the driving motor (321) is arranged at the mounting seat (325) and is electrically connected with the control device (8), the cam (322) is sleeved at the driving end of the driving motor (321) and matched with the push rod (323), the push rod (323) can be movably arranged at the other end of the push rod (323) and can be inserted into the push rod (323) in the rolling seat (313), the first spring (324) is installed in the installation seat (325) and is located below the push rod (323), one end of the first spring (324) abuts against the push rod (323), and the other end of the first spring abuts against the installation seat (325).

2. The vacuum sealing machine according to claim 1, wherein the locking piece (311) is provided with a first through hole (311 a), the rolling wheel (313) is rotatably installed in the first through hole (311 a) through the pin shaft (312), a gap matched with the push rod (323) exists between the rolling wheel (313) and the locking piece (311), and an inclined plane (323 c) matched with the rolling wheel (313) is arranged at the front end of the push rod (323).

3. The vacuum sealing machine according to claim 1, wherein the upper cover (2) comprises a cover body assembly (21), the upper vacuum bin (221) is movably mounted on the lower end face of the cover body assembly (21), the first groove (212 a) is formed in the bottom of the cover body assembly (21), the first groove (212 a) is internally provided with a second groove (212 b) which is concave upwards, and one end of the elastic piece (231) extends into the second groove (212 b) and abuts against the bottom of the second groove (212 b), and the other end abuts against the upper vacuum bin (221).

4. A vacuum sealing machine according to claim 3, wherein the upper cover (2) further comprises a limiting portion (26), the upper vacuum bin (221) is in limiting fit with the cover body assembly (21) through the limiting portion (26), the limiting portion (26) comprises a limiting clamping block (261), the cover body assembly (21) is provided with a limiting hole (212 c), and the limiting clamping block (261) can pass through the limiting hole (212 c) and is in limiting fit with the edge of the limiting hole (212 c).

5. A vacuum sealing machine according to claim 3, further comprising a safety protection assembly (4), the cover assembly (21) comprises a surface cover (211), an inner cover (212) and a connecting block (215), the surface cover (211) is sleeved on the periphery of the inner cover (212), the upper vacuum chamber (221) assembly (22) is arranged on the lower end face of the inner cover (212), the inner cover (212) is rotatably connected with the machine body (1) through the connecting block (215), the safety protection assembly (4) comprises a fixing frame (41), a micro switch (42) and a pressing rod (43), the fixing frame (41) is installed in the machine body (1), the micro switch (42) is installed in the fixing frame (41) and electrically connected with the control device (8), the pressing rod (43) is movably installed in the fixing frame (41), one end of the pressing rod (43) is matched with the connecting block (215), and the other end of the pressing rod (43) is matched with the micro switch (42).

6. The vacuum sealing machine according to claim 5, wherein the machine body (1) comprises a housing (11) and a face housing (12), the face housing (12) is mounted on an upper end face of the housing (11) and is provided with a containing cavity therebetween, the vacuum pump body (9), the safety protection assembly (4) and the transmission assembly (32) are arranged in the containing cavity, the control device (8) comprises a control circuit board (81) and a control panel (82), the control panel (82) is arranged on the face housing (12), the control circuit board (81) is arranged in the containing cavity, and the control panel (82) is electrically connected with the control circuit board (81).

7. The vacuum sealing machine according to any one of claims 1-6, further comprising a juice receiving box (5) and a bag pressing buckle (6), wherein the juice receiving box (5) is detachably installed in the lower vacuum bin (14), a plurality of installing columns (51) for installing the bag pressing buckle (6) are arranged at the edge of the juice receiving box (5), the installing columns (51) are sequentially arranged at intervals along the length direction of the juice receiving box (5), an air tap (141) communicated with the vacuum pump body (9) is arranged on the lower vacuum bin (14), a second through hole (511) communicated with the air tap (141) is formed in the center of the installing column (51), and the bag pressing buckle (6) is movably sleeved on the installing columns (51) and one end of the bag pressing buckle (6) extends with an insert (61) along the width direction of the juice receiving box (5).

8. The vacuum sealing machine according to any one of claims 1 to 6, further comprising an outer pumping device (7), wherein the outer pumping device (7) comprises an outer pumping assembly (71) and an interface assembly (72), the outer pumping assembly (71) is detachably connected with the interface assembly (72), the outer pumping assembly (71) comprises an outer pumping joint (711) and an outer pumping pipe (712), the outer pumping pipe (712) is connected with the outer pumping joint (711), the interface assembly (72) comprises an interface valve head (721), an interface valve seat (722), a second spring (723), a plug (724), a first sealing ring (725) and a second sealing ring (726), the interface valve seat (722) is installed in the machine body (1) and is communicated with the lower vacuum chamber (14), the interface valve head (721) is installed at the upper end of the interface valve seat (722) and is sealed by a first sealing ring (725), a first channel (722 a) is formed in the center of the interface valve seat (722), the second spring (723) is arranged in the first channel (724) and is abutted against the upper end of the first channel (721 a) and is abutted against the center of the interface valve head (721 a), the outer suction connector (711) is detachably mounted on the interface valve head (721) and is sealed through a second sealing ring (726), an air tap rod (711 a) extends at the bottom of the outer suction connector (711), and the air tap rod (711 a) can penetrate through the second channel (721 a) to abut against the plug (724).

9. The vacuum sealing machine according to claim 8, wherein a limiting clamping groove (721 b) is formed in the interface valve head (721), a limiting buckle (711 b) in limiting fit with the limiting clamping groove (721 b) is arranged on the outer wall of the outer drawing joint (711), and the outer drawing joint (711) is detachably matched with the interface valve head (721) through the limiting buckle (711 b).

10. The vacuum sealing machine according to any one of claims 1 to 6, further comprising supporting legs (100) and supporting legs (200), wherein the supporting legs (200) are arranged at four corners of the bottom of the machine body (1), the supporting legs (100) are rotatably installed at the bottom of the machine body (1) and located at two sides of the bottom of the machine body (1) corresponding to the lower vacuum bin (14), and the height of the supporting legs (200) is lower than the height of the supporting legs (100) after the supporting legs (100) are completely opened.