Vacuum sealing machine

Abstract

The utility model discloses a vacuum sealing machine which comprises a base and a cover body, the base is rotatably connected with the cover body, a handle and a lock catch assembly are installed on the cover body, the handle is rotatably installed on the cover body, and the lock catch assembly comprises a linkage shaft, a first lock catch and a driving piece. The first lock catch and the driving part are both installed on the linkage shaft, the driving part is rotationally connected with the handle, the handle is stressed to rotate and drives the linkage shaft through the driving part to drive the first lock catch to rotate, and a second lock catch matched with the first lock catch is arranged on the base. The first lock catch is buckled with the second lock catch through rotation so that the cover body and the base can be locked in a covering mode, the first lock catch is separated from the second lock catch through reverse rotation so that the cover body and the base can be unlocked in a covering mode, the linkage shaft, the first lock catch and the driving piece are the same rotating center shaft, the motion consistency of the lock catch assembly is better, and the transmission efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, and more specifically to a vacuum sealer. Background Art

[0002] A vacuum sealer is a packaging device that evacuates and seals all the air inside a packaging container. After food is put into a packaging bag, the air inside the packaging bag is evacuated by the vacuum sealer. After reaching a predetermined vacuum degree, the sealing process is completed, maintaining a highly decompressed state inside the bag. With little air, it has a low-oxygen effect, making it impossible for microorganisms to survive and effectively preventing food from spoiling. Most of the existing vacuum sealers have an upper and lower hinge structure. When in use, the vacuum bag to be sealed needs to be placed on the heating structure, and then the upper hinge is closed. When using this device to evacuate the air, the operator needs to press the upper hinge to evacuate the air. If the pressing force of the operator is too small, the air may not be completely evacuated, and if the pressing force is too large, the upper and lower hinges may be misaligned, resulting in a decline in the quality of vacuum evacuation and plastic sealing.

[0003] For example, the utility model patent with the publication number CN202657285U discloses a fastening mechanism for the lid of a vacuum sealer, including an upper lid top cover, an upper lid bottom cover, a base, a handle, a rotating shaft, and a locking mechanism. The upper lid top cover and the upper lid bottom cover are fixedly connected to form the upper lid. The handle passes through the upper lid top cover, and the lower end of the handle is fixedly connected to the rotating shaft. Both ends of the rotating shaft are respectively fixedly connected to a locking mechanism. The upper lid bottom cover is provided with a bracket for supporting the rotating shaft. The locking mechanism includes a rotating block fixedly connected to the rotating shaft. One end of the rotating block away from the rotating shaft is hinged to a connecting block, and one end of the connecting block away from the rotating block is hinged to a lock. The middle of the lock is hinged to the upper lid bottom cover near the edge. The lock rotates under the drive of the connecting block, and the base is provided with a buckle groove corresponding to the lock. In this technical solution, the handle drives the rotating shaft, and the rotating shaft drives the two end locks at the same time, enabling the user to operate the locking and unlocking with one hand, achieving the purpose of labor-saving and convenient use. However, in this solution, the rotation centers of the lock and the connecting block driving the lock to rotate are not on the same axis, resulting in low transmission efficiency. The split design of the locking mechanism easily leads to asynchronous movement of the two end locks, and the locking mechanism has a large size and requires a large installation space. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a vacuum sealer in which the linkage shaft, the first lock, and the driving member in the lock assembly of the vacuum sealer are all on the same rotation center axis, the movement consistency of the lock assembly is better, the transmission efficiency is higher, and the installation space required for the lock assembly is smaller and the installation requirements are lower.

[0005] The utility model provides a vacuum sealer, which comprises a base and a cover body. The base is rotatably connected to the cover body. A handle and a lock assembly are installed on the cover body. The handle is rotatably installed on the cover body. The lock assembly includes a linkage shaft, a first lock and a driving member. The first lock and the driving member are both installed on the linkage shaft. The driving member is rotatably connected to the handle. When the handle is stressed and rotated, the driving member is driven to drive the linkage shaft to drive the first lock to rotate. A second lock adapted to the first lock is arranged on the base. The first lock is engaged with the second lock by rotation to lock the cover body and the base in a closed state. The first lock is disengaged from the second lock by reverse rotation to unlock the cover body and the base in a closed state.

[0006] In this technical solution, it is set that the vacuum sealer consists of a base and a cover body, and the base is rotatably connected to the cover body. During use, the vacuum bag to be packaged is placed between the base and the cover body. By rotating the cover body, the cover body is closed on the base, so that the vacuum bag to be packaged is pressed between the base and the cover body. After the gas in the vacuum bag to be packaged is pumped away by the vacuum device, the sealing process is carried out. By arranging a handle and a lock assembly on the cover body, the lock assembly is mainly used to lock or unlock the cover body and the base, so that the cover body and the base are closed in place to improve the sealing efficiency. The handle is linked with the lock assembly, and the lock assembly is unlocked or locked by rotating the handle. The lock assembly is set to be composed of a linkage shaft, a first lock and a driving member. The first lock and the driving member are both installed on the linkage shaft, so that the linkage shaft, the first lock and the driving member are all centered on the same rotation axis. Furthermore, the linkage shaft, the first lock and the driving member all move synchronously to improve the transmission efficiency of the lock assembly. And the coaxial installation makes the installation space required for the lock assembly smaller and simplifies the installation difficulty. The driving member is rotatably connected to the handle, and a second lock is arranged on the base. When it is necessary to close and lock the cover body and the base, the user rotates the handle to close the cover body and the base. The handle acts on the driving member through rotation, and the driving member drives the linkage shaft and the first lock to rotate synchronously. When the handle rotates in place, the first lock is engaged with the second lock by rotation to lock the cover body and the base in a closed state. The cover body cannot be rotated and opened relative to the base. At this time, the vacuum bag can be sealed. When it is necessary to unlock the cover body and the base in a closed state, the user reversely rotates the handle. The handle acts on the driving member through rotation, and the driving member drives the linkage shaft and the first lock to rotate synchronously. When the handle rotates in place, the first lock is disengaged from the second lock by reverse rotation to unlock the cover body and the base in a closed state. The cover body can be rotated and opened relative to the base. At this time, the vacuum bag can be taken out or a new vacuum bag can be put in. The lock assembly with coaxial movement is set to improve the matching efficiency of the cover body and the base and the transmission efficiency of the lock assembly.

[0007] As an improvement, the handle includes a first link portion and a second link portion. An included angle is formed between the first link portion and the second link portion. The handle is rotatably connected to the cover body through the first link portion, and the handle is rotatably connected to the driving member through the second link portion. In this technical solution, the handle is composed of the joint of the first link portion and the second link portion. The included angle formed by the joint of the first link portion and the second link portion is set so that the handle has a crank structure. The first link portion is rotatably connected to the cover body and the second link portion is rotatably connected to the driving member, so that the rotation of the handle under force can drive the driving member to rotate, thereby realizing the linkage between the handle and the buckle mechanism, with a simple structure and high transmission efficiency.

[0008] As an improvement, a first rotating shaft is provided on the second link portion, and a sliding groove adapted to the first rotating shaft is provided on the driving member. The first rotating shaft is installed in the sliding groove so that the driving member is rotatably connected to the handle. In this technical solution, the handle is rotatably connected to the driving member through the second link portion. By providing a first rotating shaft on the second link portion and a sliding groove on the driving member, and installing the first rotating shaft in the sliding groove, the handle is rotatably connected to the driving member, and the first rotating shaft has a movement space through the sliding groove. The first rotating shaft can move in the sliding groove under force, preventing the relative rotation between the handle and the driving member from getting stuck, improving the transmission efficiency and the service life.

[0009] As an improvement, a second rotating shaft is provided at the joint of the first link portion and the second link portion, and a first mounting portion adapted to the second rotating shaft is provided on the cover body. The second rotating shaft is installed in the first mounting portion so that the handle is rotatably mounted on the cover body. In this technical solution, by providing a second rotating shaft at the joint of the first link portion and the second link portion and a first mounting portion on the cover body, and the second rotating shaft is rotatably connected to the first mounting portion, the handle rotates around the second rotating shaft on the cover body, with a simple structure and high rotation efficiency.

[0010] As an improvement, the rotation angle of the handle relative to the cover body is 0° - 45°, and the range of the included angle is 20° - 70°. In this technical solution, the rotation angle of the handle is set to 0° - 45°. During the process of the handle rotating relative to the cover body under force, the buckle assembly can be unlocked. When the handle rotates relative to the cover body to 45°, the handle can drive the cover body to rotate and open when it continues to be stressed. The user can achieve multiple functions through the handle, making it more convenient and labor-saving to use. By setting the range of the included angle to 20° - 70°, the rotation of the handle can drive the driving member to rotate, improving the transmission efficiency. And since the included angle is an acute angle, the volume of the handle is small, and the installation space required for the handle is small.

[0011] As an improvement, the cover body is provided with a second mounting portion, the second mounting portion is provided with a socket adapted to the linkage shaft, and the linkage shaft passes through the socket to be rotatably mounted on the cover body. In this technical solution, the linkage shaft is installed by providing a second mounting portion on the cover body, and a socket for the linkage shaft to pass through is provided on the second mounting portion, and the linkage shaft passes through the socket to be rotatably mounted on the second mounting portion, so that the linkage shaft is rotatably connected to the cover body, the mounting structure is simple and reliable, and the transmission efficiency is high.

[0012] As an improvement, a limiter adapted to the linkage shaft is installed in the second mounting portion, and the second mounting portion limits the linkage shaft up and down through the limiter. In this technical solution, by arranging a limiter in the second mounting portion, the upper and lower limits of the linkage shaft are located in the second mounting portion through the limiter, so as to prevent the linkage shaft from shaking up and down when it is rotated under force, thereby improving the transmission efficiency of the locking mechanism.

[0013] As an improvement, two of the first lock catch, the driving member and the second lock catch are provided. In this technical solution, by providing two first lock catches, two driving members and two second lock catches, the covering locking reliability and locking efficiency of the cover body and the base are improved.

[0014] As an improvement, the length of the linkage shaft is greater than the length of the handle, and the first lock is arranged at the end of the linkage shaft. In the technical scheme, the vacuum sealer is generally in the shape of a long strip, and the length of the vacuum sealer is relatively long. The length of the linkage shaft is set to be at least greater than the length of the handle, so that the length of the linkage shaft is relatively long. Two first locks are arranged, and the two first locks are arranged at both ends of the linkage shaft, so that the engagement of the first lock and the second lock is as close as possible to the two ends of the vacuum sealer, so that the covering and locking of the cover body and the base are more reliable, and the locking efficiency is improved.

[0015] As an improvement, the cover body is provided with a receiving groove adapted to the handle, and the handle is rotated so that part of the handle is accommodated in the receiving groove, so that the surface of the handle is flush with the surface of the cover body. In this technical solution, the handle is rotated by force to lock or unlock the locking mechanism. In the storage state, the rotation angle of the handle relative to the cover body is 0°. By providing a receiving groove that can accommodate part of the handle on the cover body, the surface of the handle is flush with the surface of the cover body when the handle is in the receiving groove, which not only has better aesthetics, but also has a smaller storage volume. On the other hand, the receiving groove is only capable of accommodating part of the handle, and the gripping part of the handle is still located outside the receiving groove, so that when the user needs to use it, the handle is not interfered by the receiving groove, which is more convenient and labor-saving to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention discloses a three-dimensional structural schematic diagram of a vacuum sealing machine.

[0017] Figure 2This is a schematic cross-sectional view of a vacuum sealer according to the present disclosure.

[0018] Figure 3 This is a schematic three-dimensional structure view of the locking component in the present disclosure.

[0019] Figure 4 This is a schematic three-dimensional view of a part of the structure in a vacuum sealer according to the present disclosure.

[0020] Figure 5 This is a schematic three-dimensional structure view of the handle in the present disclosure.

[0021] Figure 6 This is a schematic three-dimensional structure view of the cover body in the present disclosure.

[0022] Figure 7 This is a schematic cross-sectional view of the cover body in the present disclosure.

[0023] As shown in the figure: 1. Base; 11. Second lock; 2. Cover body; 21. First installation part; 22. Second installation part; 221. Insertion hole; 222. Limiting part; 23. Accommodation groove; 3. Handle; 31. First connecting rod part; 32. Second connecting rod part; 321. First rotating shaft; 33. Second rotating shaft; 4. Locking component; 41. Linking shaft; 42. First lock; 43. Driving part; 431. Sliding groove. Detailed implementation manners

[0024] To better understand the present application, more detailed descriptions of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of the exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0025] In the accompanying drawings, for the sake of clarity, the thickness, dimensions, and shapes of the objects have been slightly exaggerated. The drawings are only examples and are not drawn to an exact scale.

[0026] It should also be understood that the terms "comprising", "including", "having", "containing", "including", when used in this specification, indicate the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.

[0027] Such as Figures 1 to 7As shown in the figure, the present application discloses a vacuum sealer, which includes a base 1 and a cover body 2. The base 1 is rotatably connected to the cover body 2. It is set that the vacuum sealer is composed of the base 1 and the cover body 2, and the base 1 is rotatably connected to the cover body 2. During use, the vacuum bag to be sealed is placed between the base 1 and the cover body 2. By rotating the cover body 2, the cover body 2 is closed on the base 1, so that the vacuum bag to be sealed is pressed between the base 1 and the cover body 2. After the gas in the vacuum bag to be sealed is evacuated by the vacuum device, the sealing process is carried out; a handle 3 and a lock assembly 4 are installed on the cover body 2. The handle 3 is rotatably installed on the cover body 2. By providing the handle 3 and the lock assembly 4 on the cover body 2, the lock assembly 4 is mainly used to lock or unlock the cover body 2 and the base 1, so that the cover body 2 and the base 1 are closed in place to improve the sealing efficiency. The handle 3 is linked with the lock assembly 4, and the lock assembly 4 is unlocked or locked by rotating the handle 3;

[0028] The lock assembly 4 includes a linkage shaft 41, a first lock 42 and a driving member 43. The first lock 42 and the driving member 43 are both installed on the linkage shaft 41. It is set that the lock assembly 4 is composed of the linkage shaft 41, the first lock 42 and the driving member 43. The first lock 42 and the driving member 43 are both installed on the linkage shaft 41, so that the linkage shaft 41, the first lock 42 and the driving member 43 all have the same rotation center axis. Furthermore, the linkage shaft 41, the first lock 42 and the driving member 43 all keep synchronous actions to improve the transmission efficiency of the lock assembly 4. And the coaxial installation makes the installation space required for the lock assembly 4 smaller and simplifies the installation difficulty; the driving member 43 is rotatably connected to the handle 3. The handle 3 rotates under force and drives the linkage shaft 41 to drive the first lock 42 to rotate through the driving member 43. A second lock 11 adapted to the first lock 42 is provided on the base 1. The first lock 42 is engaged with the second lock 11 by rotation to lock the cover body 2 and the base 1. The first lock 42 is disengaged from the second lock 11 by reverse rotation to unlock the cover body 2 and the base 1;

[0029] When it is necessary to close and lock the cover body 2 and the base 1, the user closes the cover body 2 and the base 1 by rotating the handle 3. The handle 3 acts on the driving member 43 through rotation, and the driving member 43 drives the linkage shaft 41 and the first lock 42 to rotate synchronously. When the handle 3 rotates in place, the first lock 42 is latched with the second lock 11 through rotation, so that the cover body 2 and the base 1 are closed and locked, and the cover body 2 cannot rotate and open relative to the base 1. At this time, the vacuum bag can be sealed. When it is necessary to unlock the cover body 2 and the base 1, the user rotates the handle 3 in the reverse direction. The handle 3 acts on the driving member 43 through rotation, and the driving member 43 drives the linkage shaft 41 and the first lock 42 to rotate synchronously. When the handle 3 rotates in place, the first lock 42 disengages from the second lock through reverse rotation, so that the cover body 2 and the base 1 are unlocked, and the cover body 2 can rotate and open relative to the base 1. At this time, the vacuum bag can be taken out or a new vacuum bag can be put in. The lock assembly 4 with coaxial movement is set to improve the matching efficiency between the cover body 2 and the base 1 and the transmission efficiency of the lock assembly 4.

[0030] More specifically, as Figure 2 , Figure 3 and Figure 5 shown, the handle 3 includes a first connecting rod portion 31 and a second connecting rod portion 32. An included angle is formed between the first connecting rod portion 31 and the second connecting rod portion 32. The handle 3 is rotatably connected to the cover body 2 through the first connecting rod portion 31, and the handle 3 is rotatably connected to the driving member 43 through the second connecting rod portion 32. The handle 3 is composed of the joint of the first connecting rod portion 31 and the second connecting rod portion 32. The included angle formed by the joint of the first connecting rod portion 31 and the second connecting rod portion 32 is set so that the handle 3 has a crank structure. The first connecting rod portion 31 is rotatably connected to the cover body 2 and the second connecting rod portion 32 is rotatably connected to the driving member 43, so that the force-driven rotation of the handle 3 can drive the driving member 43 to rotate, thereby realizing the linkage between the handle 3 and the lock mechanism, with a simple structure and relatively high transmission efficiency.

[0031] More specifically, as Figure 2 , Figure 3 and Figure 5 shown, a first rotating shaft 321 is provided on the second connecting rod portion 32, and a sliding groove 431 adapted to the first rotating shaft 321 is provided on the driving member 43. The first rotating shaft 321 is installed in the sliding groove 431 so that the driving member 43 is rotatably connected to the handle 3. The handle 3 is rotatably connected to the driving member 43 through the second connecting rod portion 32. By providing the first rotating shaft 321 on the second connecting rod portion 32 and the sliding groove 431 on the driving member 43, and installing the first rotating shaft 321 in the sliding groove 431, the handle 3 is rotatably connected to the driving member 43, and the first rotating shaft 321 has a movement space through the sliding groove 431. The first rotating shaft 321 can move in the sliding groove 431 under force, preventing the relative rotation between the handle 3 and the driving member 43 from getting stuck, improving the transmission efficiency and the service life.

[0032] More specifically, as Figure 2 , Figure 3 and Figure 5 shown, a second rotating shaft 33 is provided at the joint of the first connecting rod portion 31 and the second connecting rod portion 32, and a first mounting portion 21 adapted to the second rotating shaft 33 is provided on the cover body 2. The second rotating shaft 33 is installed in the first mounting portion 21 so that the handle 3 is rotatably mounted on the cover body 2. By providing the second rotating shaft 33 at the joint of the first connecting rod portion 31 and the second connecting rod portion 32 and providing the first mounting portion 21 on the cover body 2, and the second rotating shaft 33 is rotatably connected to the first mounting portion 21, the handle 3 rotates around the second rotating shaft 33 on the cover body 2, with a simple structure and relatively high rotation efficiency.

[0033] More specifically, the rotation angle of the handle 3 relative to the cover body 2 is 0° - 45°, and the included angle range is 20° - 70°. By setting the rotation angle of the handle 3 to 0° - 45°, the handle 3 can unlock the lock assembly 4 when it is forced to rotate relative to the cover body 2. When the handle 3 rotates to 45° relative to the cover body 2, the handle 3 can drive the cover body 2 to rotate and open when it is further forced. The user can achieve multiple functions through the handle 3, making it more convenient and labor-saving to use. By setting the included angle range to 20° - 70°, the handle 3 can drive the driving member 43 to rotate when it rotates, improving the transmission efficiency. And since the included angle is an acute angle, the volume of the handle 3 is small, and the installation space required for the handle 3 is small.

[0034] More specifically, as Figure 2 and Figure 7 shown, a second mounting portion 22 is provided on the cover body 2, and the second mounting portion 22 is provided with a jack 221 adapted to the linkage shaft 41. The linkage shaft 41 passes through the jack 221 to be rotatably mounted on the cover body 2. By providing the second mounting portion 22 on the cover body 2 to install the linkage shaft 41 and providing the jack 221 for the linkage shaft 41 to pass through in the second mounting portion 22, the linkage shaft 41 passes through the jack 221 to be rotatably mounted on the second mounting portion 22, so that the linkage shaft 41 is rotatably connected to the cover body 2, with a simple and reliable installation structure and relatively high transmission efficiency.

[0035] More specifically, as Figure 2 and Figure 7 shown, a limiting member 222 adapted to the linkage shaft 41 is installed in the second mounting portion 22. The second mounting portion 22 limits the up and down movement of the linkage shaft 41 through the limiting member 222. By providing the limiting member 222 in the second mounting portion 22 and using the limiting member 222 to limit the up and down movement of the linkage shaft 41 in the second mounting portion 22, the linkage shaft 41 is prevented from shaking up and down when it is forced to rotate, improving the transmission efficiency of the lock mechanism.

[0036] More specifically, as Figure 3As shown, two first lock buckles 42, two driving members 43 and two second lock buckles 11 are provided. By providing two first lock buckles 42, two driving members 43 and two second lock buckles 11, the covering locking reliability and locking efficiency of the cover body 2 and the base 1 are improved.

[0037] More specifically, Figure 4 As shown, the length of the linkage shaft 41 is greater than the length of the handle 3, and the first lock buckle 42 is arranged at the end of the linkage shaft 41. The vacuum sealer is generally in the shape of a long strip, and the length of the vacuum sealer is relatively long. The length of the linkage shaft 41 is set to be at least greater than the length of the handle 3, so that the length of the linkage shaft 41 is relatively long. Two first lock buckles 42 are provided, and the two first lock buckles 42 are arranged at both ends of the linkage shaft 41, so that the engagement of the first lock buckle 42 and the second lock buckle 11 is as close as possible to the two ends of the vacuum sealer, thereby making the covering and locking of the cover body 2 and the base 1 more reliable and improving the locking efficiency.

[0038] More specifically, Figure 1 and Figure 5 As shown, a receiving groove 23 adapted to the handle 3 is provided on the cover body 2. The handle 3 is rotated so that part of the handle 3 is accommodated in the receiving groove 23, so that the surface of the handle 3 is flush with the surface of the cover body 2. The handle 3 is rotated by force to lock or unlock the locking mechanism. In the storage state, the rotation angle of the handle 3 relative to the cover body 2 is 0°. By providing the receiving groove 23 on the cover body 2 that can accommodate part of the handle 3, the surface of the handle 3 is flush with the surface of the cover body 2 when the handle 3 is in the receiving groove 23, which not only has better aesthetics but also has a smaller storage volume. On the other hand, the receiving groove 23 is provided to only accommodate part of the handle 3, and the gripping part of the handle 3 is still located outside the receiving groove 23, so that when the user needs to use it, the handle 3 will not be disturbed by the receiving groove 23, which is more convenient and labor-saving to use.

[0039] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A vacuum sealer, comprising a base (1) and a cover (2), wherein the base (1) and the cover (2) are rotatably connected, characterized in that: The cover body (2) is provided with a handle (3) and a lock assembly (4). The handle (3) is rotatably mounted on the cover body (2). The lock assembly (4) comprises a linkage shaft (41), a first lock (42) and a driving member (43). The first lock (42) and the driving member (43) are both mounted on the linkage shaft (41). The driving member (43) is rotatably connected to the handle (3). The handle (3) is rotated by force and drives the linkage shaft (41) through the driving member (43) to drive the first lock (42) to rotate. The base (1) is provided with a second lock (11) adapted to the first lock (42). The first lock (42) is engaged with the second lock (11) by rotation so that the cover body (2) and the base (1) are locked together. The first lock (42) is disengaged from the second lock (11) by reverse rotation so that the cover body (2) and the base (1) are unlocked.

2. A vacuum sealer according to claim 1, characterized in that: The handle (3) comprises a first connecting rod portion (31) and a second connecting rod portion (32), an angle being formed between the first connecting rod portion (31) and the second connecting rod portion (32), the handle (3) being rotatably connected to the cover body (2) via the first connecting rod portion (31), and the handle (3) being rotatably connected to the driving member (43) via the second connecting rod portion (32).

3. A vacuum sealer according to claim 2, characterized in that: The second connecting rod portion (32) is provided with a first rotating shaft (321), the driving member (43) is provided with a sliding groove (431) adapted to the first rotating shaft (321), and the first rotating shaft (321) is installed in the sliding groove (431) so that the driving member (43) is rotatably connected to the handle (3).

4. A vacuum sealer according to claim 2, characterized in that: A second rotating shaft (33) is provided at the junction of the first connecting rod portion (31) and the second connecting rod portion (32); a first mounting portion (21) adapted to the second rotating shaft (33) is provided on the cover body (2); and the second rotating shaft (33) is mounted in the first mounting portion (21) so that the handle (3) is rotatably mounted on the cover body (2).

5. A vacuum sealer according to claim 2, characterized in that: The rotation angle of the handle (3) relative to the cover body (2) is 0°-45°, and the range of the included angle is 20°-70°.

6. A vacuum sealer according to claim 1, characterized in that: The cover body (2) is provided with a second mounting portion (22), and the second mounting portion (22) is provided with a socket (221) adapted to the linkage shaft (41), and the linkage shaft (41) passes through the socket (221) to be rotatably mounted on the cover body (2).

7. A vacuum sealer according to claim 6, characterized in that: A limiting member (222) adapted to the linkage shaft (41) is installed in the second mounting portion (22), and the second mounting portion (22) limits the linkage shaft (41) up and down via the limiting member (222).

8. The vacuum sealer according to claim 1, characterized in that: The first lock buckle (42), the driving member (43) and the second lock buckle (11) are each provided with two.

9. A vacuum sealer according to claim 8, characterized in that: The length of the linkage shaft (41) is greater than the length of the handle (3), and the first lock buckle (42) is arranged at the end of the linkage shaft (41).

10. The vacuum sealer according to claim 1, characterized in that: The cover body (2) is provided with a receiving groove (23) adapted to the handle (3), and the handle (3) is rotated so that part of the handle (3) is received in the receiving groove (23), so that the surface of the handle (3) is flush with the surface of the cover body (2).

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