Vacuum sealer with pressure relief lock catch

Abstract

The utility model relates to a vacuum sealer with a pressure relief lock catch, which comprises a cover body and a seat body, a sealing component and a sealing ring are arranged between the cover body and the seat body, a vacuumizing cavity is enclosed between the cover body and the seat body through the sealing ring, and a vacuum pump communicated with the vacuumizing cavity is arranged in the cover body. A first switch for connecting and disconnecting the sealing assembly or / and a working circuit of the vacuum pump is arranged in the cover body; the cover body is connected with a decompression button, an avoiding cavity is formed in the decompression button, a linkage piece capable of triggering the first switch is movably connected in the avoiding cavity, an upper connecting part is arranged on one side of the avoiding cavity, and a lower connecting part corresponding to the upper connecting part is fixedly arranged on the base body. The lower connecting part extends into the avoiding cavity to be matched with the upper connecting part so as to lock the cover body and the seat body, and meanwhile, the linkage piece is pushed to move so as to trigger the first switch; according to the vacuum sealing machine, the linkage piece for triggering the first switch is arranged, the avoiding cavity for avoiding the linkage piece is formed in the lock catch structure, and the effect of saving space is achieved.

Description

Technical Field

[0001] The utility model relates to the field of vacuum sealing machines, in particular to a vacuum sealing machine with a pressure relief lock buckle. Background Art

[0002] The vacuum sealer puts food into a sealed bag and then extracts the air in the bag. The sealing process is completed when the predetermined vacuum degree is reached in the bag. The vacuuming is mainly completed through a vacuum chamber and a vacuum device. The bag mouth of the sealed bag is placed in the vacuum chamber, and the air in the vacuum chamber is extracted by the vacuum device to form a negative pressure, thereby sucking out the air in the sealed bag to form a vacuum state.

[0003] The vacuum sealers in the current prior art, such as the magnetic pre-closing vacuum sealer in the Chinese patent document, patent number: CN202321267294.5, mainly protect the fact that a magnetic suction component is arranged between the upper and lower sides of the base and the cover body close to the opening and closing mouth or / and the vacuum chamber, and the base and the cover body are pre-tightened and fitted together by the suction force of the magnetic suction component. After the pre-tightening and fitting, the micro switch disclosed in paragraph 0030 of the specification is used to ensure that the vacuum pump can be started only when the cover body is in the closed state. However, the structure for realizing the two functions is complicated, and the separate arrangement occupies a large space, and the exposed micro switch is easily touched by mistake when the base and the cover body are opened. Therefore, the applicant provides a new solution to the above technical problems through further improvement and perfection of the structure for consumers to choose and use. Summary of the invention

[0004] The utility model aims to provide a vacuum sealer with a pressure relief lock buckle which has a simple and reasonable structure, is easy to install and has a stable structure.

[0005] A vacuum sealer with a pressure relief lock comprises a cover body and a base body which are hinged to open and close, a sealing assembly and a sealing ring are arranged between the cover body and the base body, a vacuum chamber is formed between the cover body and the base body through the sealing ring, a vacuum pump which is connected to the vacuum chamber is arranged in the cover body, and a first switch which switches on and off the sealing assembly and / or the working circuit of the vacuum pump is arranged in the cover body; a decompression button is connected to the cover body, a avoidance chamber is arranged in the decompression button, a linkage part which can trigger the first switch is movably connected in the avoidance chamber, an upper connecting part is arranged on one side of the avoidance chamber, a lower connecting part is fixedly arranged on the base body corresponding to the upper connecting part, the lower connecting part extends into the avoidance chamber and cooperates with the upper connecting part to lock the cover body and the base body, and pushes the linkage part to move to trigger the first switch.

[0006] The purpose of the utility model can also be solved by the following technical measures:

[0007] As a more specific solution, the decompression button is elastically connected to the cover body along the lateral movement direction, and the linkage member is elastically connected to the cover body along the longitudinal movement direction.

[0008] As a further solution, the cover body includes a shell, which is provided with a pressure relief port connected to the vacuum chamber; a cover plate extends from the decompression button, and the cover plate is movable and sealed on the pressure relief port along the movement direction of the decompression button to open or block the pressure relief port.

[0009] As a further solution, the linkage member includes a sliding vertical plate, the top of the sliding vertical plate is connected to an elastic curved arm, and the extended end of the elastic curved arm is provided with a pressure plate for triggering the first switch.

[0010] As a further solution, a guide seat and a limit seat extend in the shell, the decompression button is slidably connected in the guide seat, and a spring guide column extends from its inner end, a return spring is connected to the outer sleeve of the spring guide column, and both ends of the return spring are abutted between the decompression button and the limit seat.

[0011] As a further solution, a limiting pressure cover placed above the decompression button is connected to the cover body, and a guide clamping groove suitable for the sliding vertical plate to slide up and down is provided on the limiting pressure cover corresponding to the avoidance cavity, a circular vertical guide groove is provided on one side of the guide clamping groove, and a circular guide column is provided on the sliding vertical plate to cooperate with the vertical guide groove for linear sliding.

[0012] As a further solution, the upper connecting part includes an upper inverted block integrally arranged on the side wall of the avoidance cavity, and the lower connecting part includes a buckle pin fixed on the pressing surface, and a lower inverted block is provided on the top of the buckle pin and is buckled and connected to the upper inverted block, and the opposite surfaces of the lower inverted block and the upper inverted block are both provided with inclined guide surfaces.

[0013] As a further solution, a main control board is provided on one side of the inner cavity of the shell, and the first switch is a micro switch and is connected to the main control board; a decompression button is connected to each of the left and right sides of the cover body, and a linkage is connected to the decompression button corresponding to the micro switch.

[0014] As a further solution, a second switch for turning on and off the vacuum pump working circuit is also connected to the main control board. A through hole corresponding to the second switch is provided on the shell, and a vacuum valve connected to the vacuum chamber is installed on the through hole. The vacuum valve senses the pressure of the vacuum chamber and triggers the second switch through deformation.

[0015] As a further solution, the vacuum valve includes a valve shell and an elastic valve membrane, wherein the elastic valve membrane is connected to the opening of the valve shell and encloses and defines an air pressure sensing cavity, the elastic valve membrane covers the outside of the second switch and elastically triggers the second switch, and a limiting top column extending toward the elastic valve membrane is provided along the center position of the bottom wall of the valve shell.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses a vacuum sealer with a pressure relief lock. The vacuum sealer is provided with a linkage part for triggering a first switch. The lock structure is provided with an avoidance cavity for avoiding the linkage part, which can save space. The structure layout is reasonable and compact, and the connection is stable, so that the vacuum sealer can be kept small. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a vacuum sealing machine in the utility model.

[0019] Figure 2 It is a cross-sectional schematic diagram of the lock structure in the utility model.

[0020] Figure 3 It is a schematic diagram of the exploded structure of the cover body in the utility model.

[0021] Figure 4 It is a schematic diagram of the exploded structure of the lock structure in the utility model.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the vacuum valve in the utility model.

[0023] Figure 6 It is a schematic diagram of the sealing component structure in the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figures 1 to 6 As shown, a vacuum sealer with a pressure relief lock comprises a cover body 1 and a base body 2 which are hinged to open and close, a sealing assembly 3 and a sealing ring 4 are arranged between the cover body 1 and the base body 2, and a vacuum chamber A is formed between the cover body 1 and the base body 2 through the sealing ring 4, a vacuum pump 5 which is connected to the vacuum chamber A is arranged in the cover body 1, and a first switch 6 which turns on and off the working circuit of the sealing assembly 3 and / or the vacuum pump 5 is arranged in the cover body 1; a decompression button 7 is connected to the cover body 1, a avoidance chamber 701 is arranged in the decompression button 7, a linkage member 8 which can trigger the first switch 6 is movably connected in the avoidance chamber 701, an upper connecting part is arranged on one side of the avoidance chamber 701, a lower connecting part is fixedly arranged on the base body 2 corresponding to the upper connecting part, the lower connecting part extends into the avoidance chamber 701 and cooperates with the upper connecting part to lock the cover body 1 and the base body 2, and pushes the linkage member 8 to move to trigger the first switch 6.

[0026] This vacuum sealer is provided with a linkage part for triggering the first switch, and a avoidance cavity for avoiding the linkage part is provided on the lock structure, which can save space, and the structural layout is reasonable and compact, and the connection is stable, so that the vacuum sealer can be kept small.

[0027] The decompression button 7 is elastically connected to the cover body 1 along the lateral movement direction, and the linkage member 8 is elastically connected to the cover body 1 along the longitudinal movement direction; the decompression button 7 and the linkage member 8 adopt different movement directions, and when each is triggered to move, they do not interfere with each other, and can make the structural layout more compact.

[0028] The cover body 1 includes a housing 10, the housing 10 is provided with a pressure relief port 101 connected to the vacuum chamber A; the decompression button 7 extends with a cover plate 71, the cover plate 71 with the decompression button 7 in the direction of movement of the movable cover on the pressure relief port 101, to open or block the pressure relief port 101;

[0029] The shell 10 has a boss extending inwardly, and the pressure relief port 101 has a boss on its side. The extension direction of the cover plate 71 and the movement direction of the decompression button 7 are perpendicular to each other. When the cover body 1 and the base body 2 are released from buckling, the cover plate 71 opens the pressure relief port 101 at the same time, so that the vacuum chamber A returns to normal pressure and the pressure relief port 101 can be separated. Two cover steps are completed by one pressing action, which improves efficiency and makes the operation simpler.

[0030] The linkage member 8 includes a sliding vertical plate 81, and the top of the sliding vertical plate 81 is connected to an elastic curved arm 82, and the extended end of the elastic curved arm 82 is provided with a pressure plate 83 for triggering the first switch 6; the diameter of the elastic curved arm 82 gradually decreases from the connection end with the sliding vertical plate 81 to one end of the pressure plate 83, and the linkage member 8 is elastically moved by the elastic curved arm 82, so that the pressure plate 83 has a surplus space to avoid damaging the switch key of the first switch 6.

[0031] A guide seat 11 and a limit seat 12 extend in the shell 10, the decompression button 7 is slidably connected in the guide seat 11, and a spring guide column 72 extends from its inner end, and a reset spring 9 is connected to the outer sleeve of the spring guide column 72, and the two ends of the reset spring 9 are against each other between the decompression button 7 and the limit seat 12; the decompression button 7 mainly includes a button base 7a and a button body 7b, the button base 7a is slidably connected to the guide seat 11, the avoidance cavity 701 is opened on the button base 7a, and the outer end of the button base 7a extends out of the shell 10 and is connected to the button body 7b. The user realizes the sliding of the decompression button 7 through the button body 7b, and the reset spring 9 automatically resets the decompression button 7 through its elastic potential energy to realize automatic locking cooperation.

[0032] The cover body 1 is connected with a limit pressure cover 13 placed above the decompression button 7, and the limit pressure cover 13 is provided with a guide clamping groove 131 corresponding to the avoidance cavity 701, which is suitable for the sliding vertical plate 81 to slide up and down, and a circular vertical guide groove 132 is provided on one side of the guide clamping groove 131, and the sliding vertical plate 81 is provided with a circular guide column 84 that linearly slides with the vertical guide groove 132;

[0033] The limit pressure cover 13 is actually covered on the guide seat 11, limiting the decompression button 7 from sliding back and forth between the guide seat 11 and the limit pressure cover 13, and the vertical guide groove 132 and the circular guide column 84 can ensure that the linkage part 8 can be vertically lifted and slid, and the guide clamping groove 131 cooperates with the sliding vertical plate 81 to prevent the linkage part 8 from swinging left and right with the circular guide column 84 as the center.

[0034] In this embodiment, the upper connecting part includes an upper inverted block 74 integrally arranged on the side wall of the avoidance cavity 701, and a snap-in entrance 104 is opened on the bottom wall of the shell 10 corresponding to the avoidance cavity 701, and the lower connecting part includes a snap-in pin 75 fixed on the pressing surface, and a lower inverted block 76 snap-fitted with the upper inverted block 74 is provided on the top of the snap-in pin 75, and the opposite surfaces of the lower inverted block 76 and the upper inverted block 74 are both provided with inclined introduction surfaces 77; when the cover body 1 and the base body 2 are pressed together, the inclined introduction surfaces 77 between each other enable the upper inverted block 74 and the lower inverted block 76 to complete the snap connection, and when the snap-in pin 75 passes through the snap-in entrance 104 and extends into the avoidance cavity 701, its top pushes the linkage part 8 to move upward, and the action is continuous and the operation is simple.

[0035] A main control board 14 is provided on one side of the inner cavity of the shell 10, and the first switch 6 is a micro switch and is connected to the main control board 14; a decompression button 7 is connected to each of the left and right sides of the cover body 1, and a linkage part 8 is connected to the decompression button 7 corresponding to the micro switch; the upper inverted blocks on the left and right decompression buttons 7 cooperate with the lower inverted blocks 76 set on the left and right, so that the cover body 1 can be smoothly pressed on the base body 2, so that the force is more uniform.

[0036] The main control board 14 is also connected to a second switch 15 for turning on and off the working circuit of the vacuum pump 5. A through hole 102 is provided on the shell 10 corresponding to the second switch 15. A vacuum valve 16 connected to the vacuum chamber A is installed on the through hole 102. The vacuum valve 16 senses the pressure of the vacuum chamber A and triggers the second switch 15 through deformation. Only when the vacuum chamber A is in a vacuum state or a near vacuum state can the second switch 15 be triggered through the vacuum valve 16 to stop the vacuum pump 5, and then the sealing component 3 is started for sealing.

[0037] Specifically, the vacuum valve 16 includes a valve housing 161 and an elastic valve membrane 162. The elastic valve membrane 162 is connected to the opening of the valve housing 161 and encloses and defines an air pressure sensing chamber 164. The elastic valve membrane 162 covers the outside of the second switch 15 and elastically triggers the second switch 15. A limiting top column 163 extending toward the elastic valve membrane 162 is provided along the center of the bottom wall of the valve housing 161. The second switch 15 is also a micro switch.

[0038] The principle is that when the vacuum chamber A and the air pressure sensing chamber 164 are connected to each other, before vacuuming, the elastic valve membrane 162 is in the initial position and elastically presses against the switch key of the second switch 15, so that the main control board 14 determines that the vacuum chamber is in a non-vacuum state. At this time, the working circuit of the sealing component 3 is disconnected, and a negative pressure is formed in the air pressure sensing chamber 164 along with the vacuum chamber A. The elastic valve membrane 162 is sucked into the air pressure sensing chamber 164, and the elastic valve membrane 162 leaves the second switch 15. The switch key of the second switch 15 is reset, so that the main control board 14 determines that the vacuum chamber is in a vacuum state before the working circuit of the sealing component 3 can be connected. The cooperation of the second switch 15 and the vacuum valve 16 can improve the safety of the sealing machine.

[0039] A lower groove 201 is provided on the joint surface of the seat body 2, and a lower sealing groove 202 is provided on the joint surface along the outer circumference of the lower groove 201. An upper sealing groove 103 is provided on the joint surface of the cover body 1 corresponding to the lower sealing groove 202. A sealing ring 4 is provided in the upper sealing groove 103 and the lower sealing groove 202. The two sealing rings 4 abut against each other to form a vacuum chamber A between the lower groove 201 and the cover body 1.

[0040] The sealing component 3 includes a long strip heating module 31 and a pressure contact strip 32, and the long strip heating module 31 and the pressure contact strip 32 are movably in contact with each other and are placed in the vacuum chamber A. The strip heating module is connected to the cover body 1, and the pressure contact strip 32 is connected to the base body 2. In this embodiment, the long strip heating module 31 and the pressure contact strip 32 are built into the vacuum chamber A, and the sealing work is completed immediately after vacuuming.

[0041] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vacuum sealer with a pressure relief lock, comprising a cover body (1) and a base body (2) which are hingedly opened and closed, a sealing assembly (3) and a sealing ring (4) being arranged between the cover body (1) and the base body (2), a vacuum chamber (A) being enclosed by the cover body (1) and the base body (2) through the sealing ring (4), a vacuum pump (5) being arranged in the cover body (1) and being connected to the vacuum chamber (A), characterized in that The cover body (1) is provided with a first switch (6) for opening and closing the sealing component (3) and / or the working circuit of the vacuum pump (5); the cover body (1) is connected with a decompression button (7), a relief cavity (701) is provided in the decompression button (7), a linkage member (8) capable of triggering the first switch (6) is movably connected in the relief cavity (701), an upper connecting portion is provided on one side of the relief cavity (701), a lower connecting portion is fixedly provided on the base body (2) corresponding to the upper connecting portion, the lower connecting portion extends into the relief cavity (701) and cooperates with the upper connecting portion to lock the cover body (1) and the base body (2), and pushes the linkage member (8) to move to trigger the first switch (6).

2. The vacuum sealer with a pressure relief lock according to claim 1, characterized in that: The decompression button (7) is elastically connected to the cover body (1) along a transverse movement direction, and the linkage member (8) is elastically connected to the cover body (1) along a longitudinal movement direction.

3. The vacuum sealer with a pressure relief lock according to claim 1, characterized in that: The cover body (1) comprises a shell (10), the shell (10) being provided with a pressure relief port (101) connected to a vacuum chamber (A); a cover plate (71) extending from the decompression button (7), the cover plate (71) being movable and sealing on the pressure relief port (101) in accordance with the movement direction of the decompression button (7) to open or block the pressure relief port (101).

4. The vacuum sealer with a pressure relief lock according to claim 1, characterized in that: The linkage member (8) comprises a sliding upright plate (81), the top of the sliding upright plate (81) is connected to an elastic curved arm (82), and the extended end of the elastic curved arm (82) is provided with a pressing plate (83) for triggering the first switch (6).

5. The vacuum sealer with a pressure relief lock according to claim 3, characterized in that: A guide seat (11) and a limit seat (12) extend from the shell (10); the decompression button (7) is slidably connected to the guide seat (11), and a spring guide column (72) extends from the inner end thereof; a return spring (9) is connected to the outer surface of the spring guide column (72); and two ends of the return spring (9) are abutted between the decompression button (7) and the limit seat (12).

6. The vacuum sealer with a pressure relief lock according to claim 4, characterized in that: A limit pressure cover (13) is connected to the cover body (1) and is placed above the decompression button (7). A guide clamping groove (131) suitable for the sliding vertical plate (81) to slide up and down is formed on the limit pressure cover (13) corresponding to the avoidance cavity (701). A circular vertical guide groove (132) is formed on one side of the guide clamping groove (131). A circular guide column (84) is provided on the sliding vertical plate (81) and is linearly slidably matched with the vertical guide groove (132).

7. The vacuum sealer with a pressure relief lock according to claim 1, characterized in that: The upper connection portion comprises an upper undercut block (74) integrally arranged on the side wall of the avoidance cavity (701); the lower connection portion comprises a buckle pin (75) fixed on the pressing surface; a lower undercut block (76) buckled and connected to the upper undercut block (74) is provided at the top of the buckle pin (75); and the opposing surfaces of the lower undercut block (76) and the upper undercut block (74) are both provided with inclined introduction surfaces (77).

8. The vacuum sealer with a pressure relief lock according to claim 3, characterized in that: A main control panel (14) is provided on one side of the inner cavity of the shell (10); the first switch (6) is a micro switch and is connected to the main control panel (14); a decompression button (7) is connected to each of the left and right sides of the cover (1); and a linkage member (8) is connected to the decompression button (7) corresponding to the micro switch.

9. The vacuum sealer with a pressure relief lock according to claim 8, characterized in that: The main control board (14) is also connected to a second switch (15) for switching the working circuit of the vacuum pump (5). The housing (10) is provided with a through hole (102) corresponding to the second switch (15). A vacuum valve (16) connected to the vacuum chamber (A) is installed on the through hole (102). The vacuum valve (16) senses the pressure of the vacuum chamber (A) and triggers the second switch (15) by deformation.

10. The vacuum sealer with a pressure relief lock according to claim 9, characterized in that: The vacuum valve (16) comprises a valve housing (161) and an elastic valve membrane (162); the elastic valve membrane (162) is connected to the opening of the valve housing (161) and encloses and defines an air pressure sensing cavity; the elastic valve membrane (162) covers the outside of the second switch (15) and elastically triggers the second switch (15); and a limiting top column (163) extending toward the elastic valve membrane (162) is provided along the center position of the bottom wall of the valve housing (161).

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