Vacuum sealer with handle

Abstract

The utility model relates to the technical field of vacuum sealing, in particular to a vacuum sealing machine with a handle, which solves the problems that the vacuum sealing machine is inconvenient to operate and use and easy to damage due to the fact that the handle of the vacuum sealing machine cannot be positioned during operation, and comprises a machine body and a handle mechanism arranged on the machine body. The handle mechanism comprises a handle shaft and a handle fixing support. The end, facing the interior of the machine body, of the handle shaft is connected with a handle positioning mechanism. The handle shaft penetrates through the handle fixing support and is hinged to the machine body. The handle fixing support is connected with the machine body and used for supporting the handle shaft to rotate. The handle positioning mechanism comprises a first positioning piece connected to the end of the handle shaft and a second positioning piece matched with the first positioning piece. And the second positioning piece is used for positioning the position of the handle mechanism by being matched with the operation positioning part when the first positioning piece rotates. The handle positioning device is used for the household portable vacuum sealer, has a handle positioning function, and is convenient for moving and positioning the closing and opening positions of the handle.

Description

Technical Field

[0001] This utility model relates to the field of vacuum sealing technology, and in particular to a vacuum sealing machine with a handle. Background Technology

[0002] Vacuum sealing machines are mainly used for vacuum packaging and sealing food, extending its shelf life. The main working principle of a household vacuum sealing machine is as follows: Vacuum extraction: The device has a built-in vacuum pump. When a bag containing food or other items is placed in the sealing bed and the lid is closed, the vacuum pump starts working, extracting air from the bag to create a vacuum environment. Heating and sealing: When the preset vacuum level is reached, the heating wire in the device starts working, heating and sealing the bag. During the heating process, the bag material melts and bonds together, forming a tight seal and ensuring that the vacuum state inside the bag is maintained.

[0003] Existing vacuum sealing machines have a structure that allows the top cover to be locked and opened via a handle, making it convenient for users to operate by hand. However, due to unreasonable design of some handle operation structures, such as making the handle smaller in order to reduce the overall size of the vacuum sealing machine, the handle is not easy to grip during operation, making it inconvenient to operate; or it is not easy to judge whether the operation is in place when operating the handle, which can easily cause the top cover of the vacuum sealing machine to not be closed properly or to be damaged due to excessive force when operating the handle, thus affecting the normal use of the vacuum sealing machine. Utility Model Content

[0004] To address the problem that the handle of a vacuum sealing machine cannot be positioned correctly, resulting in inconvenience and easy damage to the machine, this invention provides a vacuum sealing machine with a handle.

[0005] The technical solution adopted in this utility model is:

[0006] A vacuum sealing machine with a handle includes a machine body and a handle mechanism. The handle mechanism is disposed on the machine body and includes a handle shaft and a handle fixing bracket. Both the handle shaft and the handle fixing bracket are disposed inside the machine body. A handle positioning mechanism is connected to one end of the handle shaft facing into the machine body.

[0007] The handle shaft passes through the handle fixing bracket and is hinged to the machine body. The handle fixing bracket is connected to the machine body and is used to support the rotation of the handle shaft.

[0008] The handle positioning mechanism includes a first positioning member connected to the end of the handle shaft and a second positioning member cooperating with the first positioning member. The first positioning member is provided with an operation positioning part, and the second positioning member contacts the first positioning member and is connected to the machine body. The second positioning member is used to position the handle mechanism by cooperating with the operation positioning part when the first positioning member rotates.

[0009] Furthermore, the first positioning element is a positioning block, and the operation positioning part provided on the positioning block includes an opening positioning part and a closing positioning part; the second positioning element is a positioning spring, and the shape of the positioning spring matches the operation positioning part.

[0010] The positioning spring is used to fix the position of the positioning block by applying elastic force to the operation positioning part.

[0011] Furthermore, the handle fixing bracket includes an outer fixing bracket near the inner wall of the machine body and an inner fixing bracket away from the inner wall of the machine body. Both the outer fixing bracket and the inner fixing bracket are provided with bracket holes for cooperating with the handle shaft. Both the outer fixing bracket and the inner fixing bracket are fixedly connected to the machine body.

[0012] Furthermore, the handle mechanism also includes an operating lever, the two ends of which are respectively connected to the two sides of the machine body via a handle connecting rod. Two sets of handle shafts and handle fixing brackets are symmetrically arranged inside the machine body, and the two sets of handle shafts and handle fixing brackets are respectively connected to the handle connecting rods at both ends of the operating lever.

[0013] Furthermore, a drive rod is connected to the handle shaft, and a locking head is fitted to the drive rod, with a reset torsion spring provided on the locking head;

[0014] One end of the reset torsion spring is connected to the latch head, and the other end of the reset torsion spring is connected to the handle fixing bracket. The reset torsion spring is used to provide torque to reset the latch head.

[0015] Furthermore, a safety protection mechanism is installed inside the machine body. The safety protection mechanism includes a safety switch and a switch lever hinged to the machine body. One end of the switch lever is provided with a toggle surface for the latch head to contact and move when it is engaged. The other end of the switch lever is provided with a lever switch head for contacting the safety switch and opening the switch when it is moved.

[0016] Furthermore, the body includes an upper cover located at the top and a base connected to the bottom of the upper cover. One side of the upper cover is hinged to the base. The handle mechanism is connected to the upper cover and is used to engage or disengage the upper cover and the base by rotation.

[0017] The beneficial effects of this utility model are:

[0018] To facilitate quick and accurate positioning of the handle during vacuum sealing machine operation, this invention incorporates a handle positioning mechanism. This mechanism allows the handle shaft to rotate on the handle mounting bracket, rotating a first positioning element at the end of the shaft. A second positioning element, which engages with the first positioning element, contacts and engages with different operating positioning parts on the first positioning element. For example, when the handle is closed, the first positioning element rotates until the closing operating positioning part contacts and engages with the second positioning element. Under the force of the second positioning element, the position of the first positioning element is fixed, preventing it from easily changing position without external force. This achieves the function of positioning the handle's rotation position during operation. The same principle applies when the handle needs to be moved to the open position. This structure allows users of the vacuum sealing machine to conveniently and quickly rotate the handle to the corresponding position and hold it still during operation, preventing damage from over-rotation or accidental opening due to insufficient rotation. This effectively improves the stability and safety of the vacuum sealing machine and enhances its ease of use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the device with the handle in the open state according to this utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of the device with the handle in the closed state according to this utility model;

[0021] Figure 3 This is a side view of the device with the handle closed according to this utility model;

[0022] Figure 4 This is a side view of the device with the handle in the open state according to this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the safety protection mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the handle positioning mechanism of this utility model.

[0025] Figure label:

[0026] 1-Main body, 11-Top cover, 12-Base, 2-Handle mechanism, 21-Handle shaft, 22-Handle fixing bracket, 221-Outer fixing bracket, 222-Inner fixing bracket, 23-Operating lever, 24-Handle connecting rod, 3-Handle positioning mechanism, 31-First positioning component, 32-Second positioning component, 4-Drive rod, 5-Lock head, 6-Reset torsion spring, 7-Safety protection mechanism, 71-Safety switch, 72-Switch lever, 721-Toggle surface, 722-Toggle switch head. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] This utility model is a vacuum sealing machine with a handle, mainly used in household vacuum sealing applications. It is used for vacuuming and thermoforming food packaging bags. It features quick positioning via the handle, ease of use, high stability, high safety, and a safety protection system that prevents operation unless the bag is properly closed. Specifically, this utility model can be implemented as follows:

[0029] Example 1

[0030] This embodiment is a basic implementation scheme of the vacuum sealing machine of this utility model, such as... Figures 1-2 and Figure 6 As shown, the device is a vacuum sealing machine with a handle, including a body 1 and a handle mechanism 2. By rotating the handle, the device can lock or unlock the body 1 via a locking mechanism connected to the handle. For example, when a plastic bag is placed inside the body 1, the handle needs to be operated to close and lock the body 1, preventing the machine from opening during the sealing process. After sealing, the handle needs to be operated in the opposite direction to open the body 1, facilitating the removal of the packaging bag. The handle mechanism 2 is integrally mounted on the body 1 and is an external operating handle for hand gripping. It can be located on the open side of the body 1, and the handle size should be as large as possible without affecting the overall proportions, making it easy to grip. The handle mechanism 2 includes a handle shaft 21 and a handle fixing bracket 22, both of which are located inside the body 1. To ensure the handle position is fixed after being operated to the closed or open position, a handle positioning mechanism 3 is connected to the end of the handle shaft 21 facing inwards from the body 1.

[0031] In order to support the rotation of the handle and to achieve the positioning and fixing function of the handle, the handle shaft 21 of this utility model passes through the handle fixing bracket 22 and is hinged to the body 1. The handle fixing bracket 22 is connected to the body 1 and is used to support the rotation of the handle shaft 21. The handle positioning mechanism 3 includes a first positioning member 31 connected to the end of the handle shaft 21 and a second positioning member 32 cooperating with the first positioning member 31. The first positioning member 31 is provided with an operation positioning part. The second positioning member 32 contacts the first positioning member 31 and is connected to the body 1. The second positioning member 32 is used to position the handle mechanism 2 by cooperating with the operation positioning part when the first positioning member 31 rotates.

[0032] When the handle positioning mechanism 3 rotates on the handle fixing bracket 22 based on the handle shaft 21, it can drive the first positioning member 31 at the end of the handle shaft 21 to rotate. The second positioning member 32, which cooperates with the first positioning member 31, can contact and cooperate with different operating positioning parts on the first positioning member 31 for positioning. For example, when the operating handle is closed, the first positioning member 31 rotates until the closed operating positioning part contacts and cooperates with the second positioning member 32. At this time, under the action of the second positioning member 32, the position of the first positioning member 31 is fixed by a certain amount of force, so that it will not easily change its position without the influence of external force. Thus, it realizes the function of positioning the rotation position of the handle during operation. The same principle applies when it is necessary to operate the handle to the open position. This structure allows the user of the vacuum sealing machine to conveniently and quickly rotate the handle to the corresponding position when the operating handle is closed or opened and keep it stationary. It will not cause damage due to excessive rotation, nor will it cause the equipment to suddenly open unexpectedly during operation due to insufficient rotation, which will affect the operation. It effectively improves the working stability and safety of the vacuum sealing machine and improves the convenience of use. In this embodiment, the operation positioning part can be set as a mating part with a certain concave shape on the first positioning member 31. For example, when the first positioning member 31 is a cam structure, the operation positioning part with the concave shape can match the shape of the second positioning member 32 to achieve positioning.

[0033] Example 2

[0034] Based on Example 1, such as Figures 1-2 and Figure 6As shown, in this embodiment, as a preferred implementation, the first positioning member 31 can be a positioning block. The operation positioning part provided on the positioning block includes an opening positioning part and a closing positioning part, which are used to position and fix the handle body 1 at the open position and the operation body 1 at the closed position, respectively. The second positioning member 32 can be a positioning spring. The shape of the positioning spring matches the operation positioning part. The positioning spring can apply a force to the positioning block through its own elasticity, thereby fixing the position of the positioning block. During installation, the positioning spring can be installed at a designated position on the inner wall of the body 1, and then the handle shaft 21 and the positioning block at its end can be installed. This ensures that the surface of the positioning block always maintains good contact with the positioning spring during rotation, ensuring that the positioning spring exerts sufficient elasticity on the positioning block, thereby ensuring the positioning and fixing effect. If the elasticity is too small, it is easy to loosen. If the elasticity is too large, it is easy to damage the positioning spring. Therefore, the installation position of the positioning spring needs to be selected appropriately according to the elasticity.

[0035] Example 3

[0036] Based on Example 1, such as Figure 2 As shown, to ensure sufficient support for the handle shaft 21 during rotation and to further guarantee the stable and robust structural strength of the locking mechanism connected to the handle shaft 21 for locking the machine body 1, in this embodiment, the handle fixing bracket 22 includes an outer fixing bracket 221 near the inner wall of the machine body 1 and an inner fixing bracket 222 away from the inner wall of the machine body 1. Both the outer fixing bracket 221 and the inner fixing bracket 222 have bracket holes for engaging the handle shaft 21, and both are fixedly connected to the machine body 1. The outer fixing bracket 221 and the inner fixing bracket 222 ensure that the rotating shaft and its locking mechanism on the machine body 1 are not supported at a single point, but at least at two support positions, thereby optimizing the stress distribution structure and providing sufficient support for stable locking of the vacuum sealing machine during operation, ensuring the durability of the equipment.

[0037] Example 4

[0038] Based on Example 1, such as Figures 1-2 As shown, in order to make the overall structure smaller, simpler and more aesthetically pleasing, in this embodiment, the handle mechanism 2 also includes an operating lever 23. The two ends of the operating lever 23 are respectively connected to the two sides of the body 1 through a handle connecting rod 24. Two sets of handle shafts 21 and handle fixing brackets 22 are symmetrically arranged inside the body 1. The two sets of handle shafts 21 and handle fixing brackets 22 are respectively connected to the handle connecting rods 24 at both ends of the operating lever 23.

[0039] In this embodiment, the handle shaft 21 of the handle mechanism 2 is divided into two sections installed on both sides of the body 1, instead of a single handle shaft 21 running through the entire interior of the body 1 as in the prior art. This structural feature reduces the space occupied by the handle shaft 21 within the body 1. When the internal structure of the body 1 is designed to be more compact, there will be no conflict between the components and the handle shaft 21. Thus, while saving internal space, the vacuum sealer can be made more portable and simpler in structure. Compared to the prior art vacuum sealers with handles where the handle is fixed in the middle of the body 1 and is only large enough to fit a palm, resulting in inconvenience for consumers, complex structure, and excessive space occupation within the body 1, the handle mechanism 2 of this invention is fixed on both sides of the body 1, saving internal space and increasing the overall length of the handle, making it easier for consumers to operate.

[0040] Example 5

[0041] Based on Example 1, such as Figures 3-4 As shown, to ensure that the locking mechanism of the machine body 1 can automatically reset when the handle is opened after being engaged, thus allowing for the next locking of the machine body 1, a drive rod 4 is connected to the handle shaft 21 in this embodiment. The drive rod 4 is fitted with a locking head 5, and a return torsion spring 6 is provided on the locking head 5. One end of the return torsion spring 6 is connected to the locking head 5, and the other end is connected to the handle fixing bracket 22. The return torsion spring 6 is used to provide torque to reset the locking head 5. When the handle is pressed down, the handle shaft 21 drives the drive rod 4 to rotate, and the drive rod 4 pushes the locking head 5 to rotate, locking the end of the locking head 5 under the machine body 1, thereby locking the machine body 1. At this time, both ends of the return torsion spring 6 are stretched and accumulate prestress. When the handle is unlocked, the fixation between the first positioning member 31 and the second positioning member 32 is released, and the prestress of the return torsion spring 6 causes the locking head 5 to automatically reset and rotate, further driving the drive rod 4 and the handle shaft 21 to reset and rotate, returning to the initial position. This structure allows the handle to be quickly and automatically reset without the need for electrical power, making it convenient to use.

[0042] As a preferred implementation method, such as Figures 1-5 As shown, to prevent user error from starting the vacuum sealing machine before it is effectively locked, thus affecting the processing effect, this embodiment has a safety protection mechanism 7 installed inside the machine body 1. The safety protection mechanism 7 includes a safety switch 71 and a switch lever 72 hinged to the machine body 1. One end of the switch lever 72 is provided with a lever surface 721 for the locking head 5 to contact and move when locked, and the other end of the switch lever 72 is provided with a lever switch head 722 for contacting the safety switch 71 and opening the switch when it is moved.

[0043] When the body 1 is closed and the handle is closed, the front end of the locking head 5 contacts one end of the toggle surface 721 of the switch lever 72, causing the switch lever 72 to move. The other end of the switch lever 72 then moves towards the safety switch 71 and triggers the safety switch 71 to hold it in place, thus closing the safety switch 71. At this time, the machine enters the standby state and can be started. When the safety switch 71 is not triggered, the machine does not enter the standby state and cannot start normally. This achieves the function that the equipment can only be started when the body 1 is properly closed, providing protection for the user and the vacuum sealing machine.

[0044] Example 6

[0045] Based on Example 1, such as Figures 1-4 As shown, the machine body 1 includes an upper cover 11 located at the top and a base 12 connected to the bottom of the upper cover 11. One side of the upper cover 11 is hinged to the base 12. A handle mechanism 2 is connected to the upper cover 11 and is used to drive the upper cover 11 and the base 12 to engage or disengage through rotation. This embodiment adopts a machine body 1 structure with an upper cover 11 and a base 12. On the one hand, it makes it easier to put the packaging bag into the machine body 1 for processing when sealing, improving the sealing effect. On the other hand, it allows the upper cover 11 and the base 12 to be opened and separated for inspection and maintenance of the inside of the machine body 1, facilitating the troubleshooting of faults inside the machine body 1. The hinge between the upper cover 11 and the base 12 can be set as a separable structure, thereby further separating the upper cover 11 and the base 12 completely, facilitating the inspection of the closed surface between the upper cover 11 and the base 12 and its interior.

[0046] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A vacuum sealer with handle, characterized in that, The handle mechanism (2) is arranged on the body (1), and the handle mechanism (2) comprises a handle shaft (21) and a handle fixing support (22), both of which are arranged inside the body (1), and one end of the handle shaft (21) towards the inside of the body (1) is connected with a handle positioning mechanism (3); The handle shaft (21) passes through the handle fixing support (22) and is hinged with the body (1), the handle fixing support (22) is connected with the body (1) and is used for supporting the rotation of the handle shaft (21); The handle positioning mechanism (3) comprises a first positioning piece (31) connected with the end of the handle shaft (21) and a second positioning piece (32) matched with the first positioning piece (31), the first positioning piece (31) is provided with an operation positioning part, the second positioning piece (32) is in contact with the first positioning piece (31) and is connected with the body (1); wherein the second positioning piece (32) is used for positioning the position of the handle mechanism (2) by cooperating with the operation positioning part when the first positioning piece (31) rotates.

2. A vacuum sealer with handle according to claim 1, characterized in that, The first positioning piece (31) is a positioning block, the operation positioning part provided on the positioning block comprises an opening positioning part and a closing positioning part, the second positioning piece (32) is a positioning elastic sheet, the shape of the positioning elastic sheet is matched with the operation positioning part; The positioning elastic sheet is used for fixing the position of the positioning block by acting on the operation positioning part through elastic force.

3. A vacuum sealer with handle according to claim 1, characterized in that, The handle fixing support (22) comprises an outer side fixing support (221) close to one side of the inner wall of the body (1) and an inner side fixing support (222) away from the other side of the inner wall of the body (1), the outer side fixing support (221) and the inner side fixing support (222) are respectively provided with support holes matched with the handle shaft (21), and the outer side fixing support (221) and the inner side fixing support (222) are fixedly connected with the body (1).

4. The vacuum sealer with handle of claim 1, wherein, The handle mechanism (2) further comprises an operating rod (23), both ends of the operating rod (23) are connected with both sides of the body (1) through a handle connecting rod (24), and the handle shaft (21) and the handle fixing support (22) are symmetrically arranged in two groups inside the body (1), and the two groups of handle shafts (21) and handle fixing supports (22) are connected with the handle connecting rods (24) at both ends of the operating rod (23).

5. A vacuum sealer with handle according to claim 1, characterized in that, The handle shaft (21) is connected with a driving rod (4), the driving rod (4) is connected with a lock head (5), and the lock head (5) is provided with a reset torsional spring (6); One end of the reset torsional spring (6) is connected with the lock head (5), the other end of the reset torsional spring (6) is connected with the handle fixing support (22), and the reset torsional spring (6) is used for providing torsional force to reset the lock head (5).

6. A vacuum sealer with handle according to claim 5, characterized in that, The machine body (1) is provided with a safety protection mechanism (7), which comprises a safety switch (71) and a switch lever (72) hinged to the machine body (1), one end of the switch lever (72) is provided with a pushing surface (721) for contacting and pushing the lock head (5) when the lock head (5) is buckled, and the other end of the switch lever (72) is provided with a lever switch head (722) for contacting and opening the safety switch (71) when pushed.

7. A vacuum sealer with handle according to claim 1, characterized in that, The machine body (1) comprises a top cover (11) at the top and a base (12) connected to the bottom of the top cover (11), one side of the top cover (11) is hingedly connected with the base (12), and the handle mechanism (2) is connected to the top cover (11) and is used for buckling or unlocking the top cover (11) and the base (12) by rotating driving.

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