High-stability handle locking type vacuum sealer

Abstract

The utility model relates to the technical field of vacuum sealing, solves the problem that a locking structure of an upper cover and a base of a vacuum sealing machine is insufficient in stability and prone to tripping, and particularly discloses a high-stability handle locking type vacuum sealing machine which comprises an upper cover and the base connected to the bottom of the upper cover. A handle shaft used for supporting the handle to rotate is installed in the operating handle, the two ends of the handle shaft extend into the upper cover and are respectively connected with a lock catch mechanism used for locking the upper cover and the base, and the lock catch mechanisms are installed in the position between the upper cover and the base. The lock catch mechanism comprises a driving rod connected with the handle shaft, a lock catch connecting rod is hinged to the driving rod, a lock catch head is hinged to the lock catch connecting rod, the end of the lock catch head is tightly buckled with the base, and the lock catch head is rotationally connected with the upper cover. The handle operation type locking structure for the vacuum sealer is higher in stability after being locked.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum sealing, in particular to a high-stability handle-locking vacuum sealing machine. Background Art

[0002] A vacuum sealer is primarily used to vacuum-pack and seal food, extending its shelf life. A household vacuum sealer operates on two principles: vacuum extraction. When a bag containing food or other items is placed in the sealing bed and the lid is closed, the vacuum pump activates, extracting air from the bag and creating a vacuum. Heat sealing. When a preset vacuum level is reached, a heating wire in the device activates, heating and sealing the bag. This heating process melts and bonds the bag material, creating a tight seal and maintaining the vacuum within.

[0003] During operation, a traditional vacuum sealer requires both hands to press the upper cover to secure the vacuum sealer closed. At this time, the user cannot free both hands to secure the food bag. During the vacuuming and sealing process, the food bag may change position due to the influence of the equipment and the environment, resulting in incomplete sealing and air leakage during the sealing process. Some existing vacuum sealers have some locking structures between the upper cover and the base, but the locking operation is inconvenient, and the good locking condition cannot be well confirmed. The locking stability is also insufficient, and it is easy to trip, which affects the normal use of the vacuum sealer. Utility Model Content

[0004] In order to solve the problem in the prior art that the locking structure between the upper cover and the base of the vacuum sealing machine is insufficiently stable, resulting in easy tripping, the utility model provides a high-stability handle locking vacuum sealing machine.

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

[0006] A high-stability handle-locking vacuum sealer, comprising an upper cover and a base connected to the bottom of the upper cover, wherein an operating handle is connected to the upper cover, and a handle shaft for supporting the rotation of the handle is installed in the operating handle, and both ends of the handle shaft extend into the interior of the upper cover and are respectively connected to a locking mechanism for locking the upper cover and the base, and the locking mechanism is installed inside between the upper cover and the base;

[0007] The locking mechanism includes a driving rod connected to the handle shaft, the driving rod is hinged with a locking link, the locking link is hinged with a locking head for fastening the end with the base, and the locking head is rotatably connected to the upper cover.

[0008] Furthermore, a handle shaft fixing bracket is connected between the end of the handle shaft and the upper cover, a hinged joint for connecting the lock link is provided on one side of the driving rod, the hinge between the lock head and the lock link is connected to the lock link shaft, and the rotating connection between the lock head and the upper cover is connected to a support shaft integrally formed with the lock head.

[0009] Furthermore, the locking head includes an integrally formed head and a fastener part, one end of the head is hinged to the locking rod, and the other end of the head is rotatably connected to the base, the fastener part is curved, and a fastening surface is provided on the end of the fastener part for fastening with the inner wall of the base.

[0010] Furthermore, a handle groove for accommodating an operating handle is provided on the surface of the upper cover, a mechanism mounting groove for accommodating the movement of the locking mechanism is provided on the inner wall of the upper cover, a mechanism accommodating groove cooperating with the mechanism mounting groove is provided on the base, and slot holes for allowing the locking head to pass through during the buckling movement are respectively provided at corresponding positions of the mechanism mounting groove and the mechanism accommodating groove.

[0011] Furthermore, a safety protection mechanism is installed in the base, and the safety protection mechanism includes a safety switch fixedly installed in the base and a switch lever rotatably connected to the base. One end of the switch lever is provided with a toggle surface for the lock head to contact and toggle when the lock head is buckled, and the other end of the switch lever is provided with a toggle switch head for contacting the safety switch and turning on the switch when being toggled.

[0012] The beneficial effects of the utility model are:

[0013] The vacuum sealer of the present invention is provided with a locking mechanism between the upper cover and the base, and the locking mechanism is integrally connected to the handle shaft of the operating handle on the upper cover. When the upper cover is opened, the locking mechanism is separated from the base together with the upper cover. When it is necessary to fasten the upper cover and the base, the user rotates the upper cover along the base so that the two are fitted together. Then, the user can operate the rotating operating handle with one hand to firmly fasten the upper cover and the base together under the movement of the internal locking mechanism. Specifically, when the rotating operating handle drives the handle shaft connected thereto to rotate, the driving rod on the handle shaft also rotates together, and the locking connecting rod and the locking head hinged in turn by the driving rod also rotate together under the transmission action. Since the locking head is also rotationally connected to the upper cover, when the locking head When driven to rotate, it can only move in a circular motion around the connection position with the upper cover until the lock head contacts and fastens the inner wall of the base to complete the fastening. At this time, the position and angle of the driving rod and the lock link make the two approximately connected in a straight line, and the lock head is vertical to the driving rod and the lock link after rotation and fastening. The overall lock mechanism has a certain self-locking function. The handle is not easy to rebound. Compared with the structure with only the driving rod and the fastening head, the locking is more stable. It is more difficult to open the upper cover without operating the handle, and it is less likely to be disengaged. The use of the lock link transmission optimizes the transmission structure, making the handle operation easier and smoother, and the user's operation feel is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a structural diagram of the locking mechanism of the utility model when the operating handle is in the closed position;

[0016] Figure 3 This is a structural diagram of the locking mechanism of the utility model when the operating handle is in the open position;

[0017] Figure 4 This is a structural diagram of the locking head of the utility model;

[0018] Figure 5 This is a schematic structural diagram of the locking mechanism and safety protection mechanism of the present invention;

[0019] Figure 6 This is a schematic diagram of the safety protection mechanism structure of the utility model.

[0020] Reference numerals:

[0021] 1-upper cover, 2-base, 3-operating handle, 4-handle shaft, 41-handle shaft fixing bracket, 5-locking mechanism, 51-driving rod, 52-locking connecting rod, 53-locking head, 531-head, 532-fastener part, 533-fastening surface, 54-locking connecting rod shaft, 55-supporting shaft, 6-handle slot, 7-mechanism mounting slot, 8-mechanism accommodating slot, 9-safety protection mechanism, 91-safety switch, 92-switch lever, 921-switching surface, 922-lever switch head. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] The utility model is a high-stability vacuum sealer with a locked handle. The main application scenario is a household vacuum sealer for vacuuming and thermoplastic sealing food packaging bags. It has smooth transmission, easier operation, strong locking stability, and safety protection that cannot be started in an improperly closed state. Specifically, the utility model can be implemented as follows:

[0024] Example 1

[0025] This embodiment is the basic solution implemented by the vacuum sealer of the utility model. For details, please refer to Figure 1-Figure 3 The vacuum sealer includes an upper cover 1 and a base 2 connected to the bottom of the upper cover 1. In order to facilitate the upper cover 1 and the base 2 to be accurately fastened at the same position during each fastening operation, the upper cover 1 and the base 2 can usually be set to a rotating opening structure. When the upper cover 1 and the base 2 are set to a separation structure, corresponding guide mechanisms and positioning mechanisms can also be set between the two to enable accurate fastening when closed; an operating handle 3 is connected to the upper cover 1, and a handle shaft 4 for supporting the rotation of the handle is installed in the operating handle 3. The operating handle 3 can be rotated on the upper cover 1 based on the handle shaft 4 to facilitate In operation, the open position of the operating handle 3 is usually above the upper cover 1, and the closed position is on the side of the upper cover 1, that is, the handle is pressed down to lock it, which is more in line with human intuition; both ends of the handle shaft 4 extend into the interior of the upper cover 1 and are respectively connected to a locking mechanism 5 for locking the upper cover 1 and the base 2. The locking mechanism 5 is installed inside between the upper cover 1 and the base 2. The locking mechanism 5 is used to lock the position between the upper cover 1 and the base 2 when the operating handle 3 is rotated, so as to prevent the upper cover 1 from opening during the operation of the vacuum sealer, causing the food bag to shift and leak, affecting the vacuuming and sealing effect.

[0026] More specifically, the lock mechanism 5 includes a driving rod 51 connected to the handle shaft 4. The driving rod 51 can be integrally formed with the handle shaft 4. The driving rod 51 is hinged with a lock link 52. The lock link 52 is hinged with a lock head 53 for fastening the end thereof to the base 2. The lock head 53 is rotationally connected to the upper cover 1. When the rotating operating handle 3 drives the handle shaft 4 connected thereto to rotate, the driving rod 51 on the handle shaft 4 also rotates together, and the lock link 52 and the lock head 53 hinged in turn by the driving rod 51 also rotate together under the transmission action. Since the lock head 53 is also rotationally connected to the upper cover 1, when the lock head 53 is driven to rotate, it can only perform a circular motion around the connection position with the upper cover 1. The lock mechanism 5 is a structure with a certain self-locking function. The handle is not easy to rebound. Compared with the structure with only the driving rod 51 and the locking head, the locking is more stable. It is more difficult to open the upper cover 1 without operating the handle 3, and it is less likely to be disengaged. The transmission structure is optimized by the lock link 52, making the handle operation easier and smoother, and the user's operation feel is better.

[0027] Example 2

[0028] This embodiment is a further implementation method proposed based on the technical solution of Example 1. Please refer to Figure 1-Figure 2 In order to ensure that the motion transmission between the locking mechanism 5 of the utility model is more stable, a further rotating hinge structure is set between the various components of the locking mechanism 5 in this embodiment to support the stable movement of each component and optimize the smooth movement when the operating handle 3 is rotated; as a preferred embodiment, a handle shaft fixing bracket 41 is connected between the end of the handle shaft 4 and the upper cover 1, and the handle shaft fixing bracket 41 is fixedly installed in the upper cover 1 to support the installation and rotation of the handle shaft 4; a hinged joint for connecting the locking link 52 is provided on one side of the driving rod 51, and the locking link The hole 52 is provided on the locking rod 52 to cooperate with the hinge part, so that the locking link 52 can rotate around the hinge part after being connected to the driving rod 51; in order to support the locking head 53 to rotate around the fixed rotation point with the upper cover 1 under the drive of the locking link 52, the hinge between the locking head 53 and the locking link 52 is connected with the locking link 52 axis, and the rotating connection between the locking head 53 and the upper cover 1 is connected with the supporting shaft 55 integrally formed with the locking head 53, so that the locking head 53 can be driven by the locking link 52 axis to rotate around the supporting shaft 55 to lock the upper cover 1 and the base 2.

[0029] Example 3

[0030] This embodiment is a further implementation method proposed based on the technical solution of Example 1. Please refer to Figure 4 In order to further realize the locking function of the locking mechanism 5, further avoid the occurrence of tripping, and improve the locking stability, the shape and structure of the locking head 53 can be specifically set. Specifically, the locking head 53 includes an integrally formed head 531 and a fastener portion 532. One end of the head 531 is hinged to the locking link 52, and the other end of the head 531 is rotatably connected to the base 2. The fastener portion 532 is curved, and a fastening surface 533 for fastening with the inner wall of the base 2 is provided on the end of the fastener portion 532. When the locking head 53 moves driven by the locking link 52, since the position of one end of the head 531 connected to the upper cover 1 is fixed, and the end of the head 531 connected to the locking link 52 is not limited, the end connected to the locking link 52 will rotate around the end connected to the upper cover 1, and drive the fastening surface 533 of the fastener part 532 on one side to contact and fit the inner wall of the base 2 and lock it. The curved fastener part 532 can bring better stress conditions and prevent the locking head 53 from breaking easily.

[0031] Example 4

[0032] This embodiment is a further implementation method proposed based on the technical solution of Example 1. Please refer to Figure 2 、 Figure 3 In order to make the overall structure of the vacuum sealer more compact and the device smaller, so as to be easy to carry, use and store in home scenarios, a handle groove 6 for accommodating the operating handle 3 is provided on the surface of the upper cover 1 of the utility model, and a mechanism mounting groove 7 for accommodating the activity of the locking mechanism 5 is provided on the inner wall of the upper cover 1, and a mechanism accommodating groove 8 cooperating with the mechanism mounting groove 7 is provided on the base 2. The above-mentioned groove arrangements are arranged to accommodate the installation and activity of the corresponding components in accordance with the shape and structure of the vacuum sealer, making the overall structure of the vacuum sealer more compact and reasonable; slots for allowing the locking head 53 to pass through during the buckling activity are respectively provided at the corresponding positions of the mechanism mounting groove 7 and the mechanism accommodating groove 8, so that the locking head 53 can smoothly pass through the outer shells of the upper cover 1 and the base 2 respectively when the operating handle 3 is rotated and locked, and the two are firmly locked together.

[0033] Example 5

[0034] This embodiment is a further implementation method proposed based on the technical solution of Example 1. Please refer to Figure 5 、 Figure 6In order to avoid user operation errors, the vacuum sealer is started when it is not effectively buckled and locked, thereby affecting the processing effect, or even causing damage to the vacuum sealer in the unexpected situation that the upper cover 1 and the base 2 are suddenly opened, the utility model is provided with a safety protection mechanism 9 in the base 2. Furthermore, the safety protection mechanism 9 includes a safety switch 91 fixedly installed in the base 2 and a switch lever 92 rotatably connected to the base 2. One end of the switch lever 92 is provided with a toggle surface 921 for the lock head 53 to contact and toggle when buckled, and the other end of the switch lever 92 is provided with a toggle switch head 922 for contacting the safety switch 91 and turning on the switch when being toggled. When the machine is in the box cover state and the handle is in the closed state, the front end of the lock head 53 contacts one end of the toggle surface 921 of the switch lever 92, to toggle the switch lever 92, and the other end of the switch lever 92 is driven to move toward the safety switch 91 and trigger the safety switch 91 to hold it up, so that the safety switch 91 is closed. At this time, the machine enters the standby state and can start working. When the safety switch 91 is not triggered, the machine does not enter the standby state and cannot start working normally, thereby realizing the function of starting the device only when the upper cover 1 and the base 2 are well fastened together, providing protection function for the user and the vacuum sealer.

[0035] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A high stability handle locking vacuum sealer, characterized in that: The utility model comprises an upper cover and a base connected to the bottom of the upper cover, wherein an operating handle is connected to the upper cover, and a handle shaft for supporting the rotation of the handle is installed in the operating handle. Both ends of the handle shaft extend into the interior of the upper cover and are respectively connected to a locking mechanism for locking the upper cover and the base, and the locking mechanism is installed inside between the upper cover and the base; The locking mechanism includes a driving rod connected to the handle shaft, the driving rod is hinged with a locking link, the locking link is hinged with a locking head for fastening the end with the base, and the locking head is rotatably connected to the upper cover.

2. A high stability handle locking vacuum sealer according to claim 1, characterized in that: A handle shaft fixing bracket is connected between the end of the handle shaft and the upper cover, a hinged joint for connecting the lock link is provided on one side of the driving rod, a lock link shaft is connected to the hinge between the lock head and the lock link, and a support shaft integrally formed with the lock head is connected to the rotating connection between the lock head and the upper cover.

3. The high stability handle locking vacuum sealer according to claim 1, characterized in that: The lock head includes an integrally formed head and a fastener part, one end of the head is hinged to the lock connecting rod, and the other end of the head is rotatably connected to the base. The fastener part is curved, and a fastening surface is provided on the end of the fastener part for fastening with the inner wall of the base.

4. The high stability handle locking vacuum sealer according to claim 1, characterized in that: A handle groove for accommodating an operating handle is provided on the surface of the upper cover, a mechanism mounting groove for accommodating the movement of the locking mechanism is provided on the inner wall of the upper cover, a mechanism accommodating groove cooperating with the mechanism mounting groove is provided on the base, and slot holes for allowing the locking head to pass through during the buckling movement are respectively provided at corresponding positions of the mechanism mounting groove and the mechanism accommodating groove.

5. The high stability handle locking vacuum sealer according to claim 1, characterized in that: A safety protection mechanism is installed in the base, and the safety protection mechanism includes a safety switch fixedly installed in the base and a switch lever rotatably connected to the base. One end of the switch lever is provided with a toggle surface for the lock head to contact and toggle when buckled, and the other end of the switch lever is provided with a toggle switch head for contacting the safety switch and turning on the switch when being toggled.

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