Vacuum sealing machine with handle buckle and telescopic flow guide piece

Abstract

The utility model provides a vacuum sealer with a handle buckle and a telescopic flow guide piece, which comprises a main machine body and a machine cover arranged on the main machine body, a cover body is arranged on the main machine body, a cavity is formed by the cover body and the main machine body, a telescopic flow guide mechanism and a circuit board are arranged in the cavity, and the telescopic flow guide mechanism and the circuit board are arranged in the cavity. Lock seats are formed on the two side parts of the cover body of the main machine body; the machine cover is provided with a lock hook assembly, the lock hook assembly is configured to be operated between a locking state and an unlocking state, in the locking state, the machine cover is buckled to the main machine body, and the lock hook assembly is connected to the lock seat in a hooked mode; in the unlocking state, the lock hook assembly is separated from the lock seat, the machine cover can be far away from the main machine body, the machine cover can be conveniently buckled through driving of the handle, the telescopic flow guide mechanism can adjust the air guide channel to improve the air exhaust efficiency, the structure is reasonable, and labor is saved in operation.

Description

Technical Field

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

[0002] A vacuum sealer is a device used to seal food, medicine, and other items. It works by removing air from the packaging, creating a low-oxygen environment that helps extend the shelf life of the goods and prevents oxidation and bacterial growth. Vacuum sealers are frequently used in homes, restaurants, and the food processing industry to maintain food freshness and extend its shelf life.

[0003] To better extract gas from vacuum bags, existing vacuum sealing machines incorporate telescopic guide plates within the main body. These guide plates direct the gas from the vacuum bag into the vacuum chamber of the machine. However, since the telescopic guide plate needs to span the entire vacuum chamber during extension and retraction to reach the vacuum bag, this increases the difficulty of closing the lid. Consequently, the existing press-type closing method requires users to apply considerable force to close the lid, causing inconvenience and creating stress concentration on the lid surface during pressing, which can easily damage the lid shell. Utility Model Content

[0004] This invention provides a vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic guide, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a vacuum sealing machine with a handle for fastening and a telescopic guide, comprising: a main body and a cover disposed on the main body.

[0007] The main body is equipped with a cover, and the cover and the main body form a cavity. The cavity is equipped with a telescopic flow guide mechanism and a circuit board. The main body has locking seats on both sides of the cover. The cover is equipped with a locking hook assembly, which is configured to operate between a locked state and an unlocked state. In the locked state, the cover is fastened to the main body, and the locking hook assembly is hooked to the locking seat. In the unlocked state, the locking hook assembly is disengaged from the locking seat, and the cover can move away from the main body.

[0008] As a further improvement, the cover has a limiting hole at the position corresponding to the lock seat, and the cover has mounting plates on both sides near the limiting hole.

[0009] As a further improvement, the locking hook assembly includes: a handle, a first transmission rod, a connecting rod, and a latch; the handle is provided with the first transmission rod, the connecting rod is provided at both ends of the first transmission rod, and the latch is provided at the end of the connecting rod away from the first transmission rod, the latch being slidably disposed on the mounting plate.

[0010] As a further improvement, the telescopic flow guiding mechanism is provided with a flow guiding plate. The flow guiding plate has multiple air guiding channels at its first end, which are used to guide the gas in the vacuum bag into the main body. The flow guiding plate is connected to a slider at its second end, and the slider is connected to a second transmission rod, which is connected to a transmission assembly.

[0011] As a further improvement, the telescopic guide mechanism is also provided with a housing, the housing being provided with multiple slide rails, and the slider being slidably disposed on the slide rails.

[0012] As a further improvement, the circuit board is provided with a limit switch on the side near the telescopic flow guide mechanism, and the slider has a sensing part formed on the side corresponding to the limit switch.

[0013] The beneficial effects of this utility model are:

[0014] This invention features a telescopic flow guide mechanism, allowing the guide plate to extend into the vacuum bag and guide gas from the bag into the vacuum chamber through air channels on the guide plate. This avoids the gas path blockage problem caused by overly tight sealing rings in traditional designs, significantly improving pumping efficiency. It also simplifies the number of vacuum pumps required, optimizes the overall structure of the vacuum sealing machine, and reduces production costs and maintenance difficulty. Limit switches precisely control the guide plate's position, preventing gas guidance failure due to positional deviations and improving operational stability. The handle-driven locking hook assembly replaces the traditional press-type latching with a mechanical transmission method involving handle rotation. Users only need to turn the handle to engage or disengage the hook from the locking seat, avoiding the need for significant force in traditional pressing, making operation easier and reducing stress concentration on the cover surface, thus lowering the risk of shell damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1This is a cross-sectional view of the overall structure of a vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic guide component, according to this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the cover of a vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic guide.

[0018] Figure 3 This is an enlarged schematic diagram of area A of a vacuum sealing machine with a handle, latch, and telescopic guide.

[0019] Figure 4 This is a schematic diagram of the main body structure of a vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic guide component, according to this utility model.

[0020] Figure 5 This is a schematic diagram of the telescopic flow guiding mechanism of a vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic flow guiding component, according to this utility model.

[0021] In the diagram: 1-Main body, 11-Cover, 111-Opening, 12-Lock seat, 121-Limiting groove, 2-Cover, 21-Handle, 22-First transmission rod, 23-Connecting rod, 24-Hook, 25-Mounting plate, 3-Telescopic guide mechanism, 31-Housing, 32-Slide rail, 33-Second transmission rod, 34-Slider, 35-Guide plate, 36-Transmission assembly, 37-Motor, 4-Circuit board, 41-Limit switch. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] Reference Figure 1 As shown, a vacuum sealing machine with a handle and telescopic guide includes: a main body 1 and a cover 2 disposed on the main body 1.

[0025] The main body 1 is equipped with a cover 11, which forms a cavity with the main body 1. The cavity contains a telescopic flow guide mechanism 3 and a circuit board 4. Lock seats 12 are formed on both sides of the cover 11. The cover 2 is equipped with a locking hook assembly, configured to operate between a locked and unlocked state. In the locked state, the cover 2 is fastened to the main body 1, and the locking hook assembly is engaged with the lock seat 12. In the unlocked state, the locking hook assembly disengages from the lock seat 12, allowing the cover 2 to move away from the main body 1. The locking hook assembly is driven by the handle 21, changing the traditional press-type fastening to a mechanical transmission method of rotating the handle 21. Users only need to rotate the handle 21 to engage or disengage the hook 24 from the lock seat 12, avoiding the problem of requiring significant force for traditional pressing, making operation more effortless, and reducing stress concentration on the surface of the cover 2, thus lowering the risk of damage to the cover 2's shell.

[0026] Furthermore, referring to Figure 4 As shown, a lower chamber is formed on the main body 1, and a heating component is arranged near the lower chamber; an upper chamber is formed on the cover 2 corresponding to the lower chamber, and a pressure strip is arranged near the upper chamber. The pressure strip is arranged corresponding to the heating component, and sealing rings are arranged around the upper and lower chambers to improve the airtightness of the vacuum chamber when closed. The cover 2 can be operated between the open and closed states. In the closed state, the upper and lower chambers form a sealed space, i.e., a vacuum chamber, and the pressure strip and the heating component abut against each other. In the open state, the upper chamber moves away from the lower chamber.

[0027] A cover 11 is formed on the main body 1, and a cavity is formed between the cover 11 and the main body 1. A telescopic flow guiding mechanism 3 and a circuit board 4 are arranged inside the cavity. A limit switch 41 is provided on the side of the circuit board 4 near the telescopic flow guiding mechanism 3. In this embodiment, three sets of limit switches 41 are provided on the circuit board 4, which are arranged sequentially as a third limit switch, a second limit switch, and a first limit switch from the opening 111 toward the transmission component 36. The output end of the circuit board 4 is electrically connected to the control end of the vacuum pump, the heating component, and the telescopic flow guiding mechanism 3. An opening 111 is provided on the side wall of the cover 11 near the lower chamber. Multiple expansion plates are provided inside the lower chamber on the side near the opening 111. The expansion plate is used to keep the opening of the vacuum bag open, so that the guide plate 35 can be inserted into the vacuum bag. The lower chamber is also provided with multiple air extraction ports. The air extraction ports are connected to the vacuum pump through pipelines. The gas in the vacuum bag is guided into the vacuum chamber through the air guiding channel on the guide plate 35. The vacuum pump then removes the gas in the vacuum chamber through the air extraction ports, so that the vacuum chamber enters a negative pressure state and the vacuum bag enters a vacuum state, thereby improving the sealing effect of the vacuum bag. The main body 1 has locking seats 12 on both sides of the cover 11. Each locking seat 12 has a limiting groove 121 on one side. The limiting groove 121 is used to connect with the hook 24 to realize the cover 2 fastening to the main body 1, so that the connection between the two is stable.

[0028] Furthermore, referring to Figure 2-3As shown, the cover 2 has a lower panel on the side near the main body 1. The lower panel has limit holes at the corresponding positions of the lock seat 12. The cover 2 has multiple mounting plates 25 on the lower panel, which are located near the limit holes on both sides. The mounting plates 25 have grooves for the sliding of the hooks 24. The mounting plates 25 are used to connect the hooks 24 and restrict their movement. The cover 2 has a lock hook assembly, which is configured to operate between a locked state and an unlocked state. In the locked state, the cover 2 is fastened to the main body 1, and the lock hook assembly is hooked to the lock seat 12. In the unlocked state, the lock hook assembly is disengaged from the lock seat 12, and the cover 2 can move away from the main body 1. The lock hook assembly includes: a handle 21, a first transmission rod 22, a connecting rod 23, and a hook 24. The handle 21 is through which the first transmission rod 22 passes. The two ends of the first transmission rod 22 are provided with connecting rods 23. The end of the connecting rod 23 away from the first transmission rod 22 is provided with a hook 24. 4. The hook 24 is slidably mounted on the mounting plate 25, and the handle 21 is rotatably mounted on the cover 2. By rotating the handle 21, the rotation of the handle 21 drives the first transmission rod 22 to rotate, thereby moving the connecting rod 23, which in turn drives the hook 24, realizing the connection and disengagement of the hook 24 with the lock seat 12. In order to better drive the connecting rod 23, the cross-sectional shape of the first transmission rod 22 is polygonal or irregular. Correspondingly, matching connecting holes are provided on the handle 21 and the connecting rod 23. In this embodiment, the cross-section of the first transmission rod 22 is set to hexagonal, so that the first transmission rod 22 can better cooperate with the handle 21. That is, when the handle 21 is rotated to a position perpendicular to the cover 2, the hook 24 disengages from the lock seat 12, realizing the unlocking between the cover 2 and the main body 1. When the handle 21 is rotated to a position parallel to the cover 2, the hook 24 hooks onto the lock seat 12, realizing the locking between the cover 2 and the main body 1.

[0029] Furthermore, referring to Figure 5As shown, the telescopic flow guiding mechanism 3 is equipped with a flow guiding plate 35. The flow guiding plate 35 has multiple air guiding channels at its first end. These channels guide gas into the lower chamber. In this embodiment, the air guiding channels are multiple parallel grooves formed on the surface of the flow guiding plate 35. To improve pumping efficiency, air guiding channels are provided on both the upper and lower surfaces of the flow guiding plate 35. These channels connect the vacuum bag and the vacuum chamber. The length of the flow guiding plate 35 is defined as A, and the length of the air guiding channel is defined as B. B is between 1 / 3A and 1 / 2A. By controlling the length of the air guiding channel, it is ensured that the channel can guide the gas from the vacuum bag into the vacuum chamber, preventing the gas path from being blocked. This also ensures the structural strength of the flow guiding plate 35. The excessive length of the air guide channel prevents the guide plate 35 from breaking during operation. Furthermore, by embedding the air guide channel into the guide plate 35, the thickness of the guide plate 35 can be effectively reduced, avoiding deformation of the sealing ring due to the excessive thickness of the guide plate 35 during long-term use, which would affect the sealing effect of the sealing ring. To further avoid the above problems, a relief groove can be provided on the sealing ring corresponding to the guide plate 35. When the vacuum sealing machine is in the closed state, the relief groove in the upper chamber and the relief groove in the lower chamber form a through hole for the guide plate 35 to pass through. When the guide plate 35 passes through the through hole, the sealing ring will fit against the guide plate 35 to prevent gas from escaping from the vacuum chamber and affecting the airtightness of the vacuum chamber.

[0030] A slider 34 is connected to the second end of the guide plate 35. A sensing element is formed on one side of the slider 34 corresponding to the limit switch 41. The slider 34 is connected to a second transmission rod 33. A transmission assembly 36 is connected to the end of the second transmission rod 33 away from the slider 34. The transmission assembly 36 includes a driving wheel and a driven wheel. The driven wheel is connected to the transmission rod 36 and is also connected to the driving wheel. The transmission assembly 36 can be a gear transmission or a pulley transmission assembly. In this embodiment, a gear transmission assembly is preferably provided, where the driving wheel and the driven wheel are connected by the teeth of the gears. The gear transmission group achieves transmission through intermeshing, which can better control the extension and retraction of the guide plate 35. The drive wheel is connected to the motor 37, which is electrically connected to the output end of the circuit board 4. The telescopic guide mechanism 3 is configured to switch between a first position, a second position, and a third position. In the third position, the guide plate 35 extends from the opening 111 under the action of the slider 34, and through the third limit switch on the circuit board 4, the guide plate 35 extends into the vacuum bag, so that the opening end of the air guide channel is above the heating component. When the vacuum sealing machine executes the evacuation command, it can guide the gas inside the bag into the vacuum chamber. In the second position, the guide plate 35 is pulled out of the vacuum bag by the slider 34, and the guide plate 35 is retracted into the vacuum chamber by the second limit switch on the circuit board 4. This makes it easier for users to shorten the extension time of the guide plate 35 when sealing items in batches, thus improving sealing efficiency. In the first position, the guide plate 35 is placed in the cavity by the first limit switch on the circuit board 4, which protects the guide plate 35. In this embodiment, the position corresponding to the third limit switch is that the guide plate 35 is above the heating component, the position corresponding to the second limit switch is that the guide plate 35 is above the vacuum chamber, and the position corresponding to the first limit switch is that the guide plate 35 is in the cavity. Therefore, the preset position can be adjusted according to actual use needs. For example, if performing batch food preservation operations, the guide plate 35 can be retracted into the vacuum chamber position to shorten the distance the guide plate 35 moves and improve work efficiency. If cleaning the main body, the guide plate 35 can be retracted into the cover 11.

[0031] Furthermore, the telescopic flow guiding mechanism 3 is provided with a housing 31, which includes an upper housing and a lower housing. The upper housing and the lower housing are fixedly connected by bolts or adhesive. The outer wall of the lower housing is provided with a connection hole for connecting to the main body 1. The telescopic flow guiding mechanism 3 is fixedly connected to the main body 1 by bolts. Multiple slide rails 32 are provided inside the lower housing. A slider 34 is slidably disposed on the slide rails 32. The slider 34 is used to drive the extension and retraction of the flow guiding plate 35. The first end of the slider 34 is connected to the flow guiding plate 35. A space is provided between the flow guiding plate 35 and the slider 34. When the spring is closed, the guide plate 35 moves downward as the cover 2 rotates, preventing the guide plate 35 from being bent and affecting its normal use. The second end of the slider 34 is connected to a second transmission rod 33, which drives the slider 34 to move. One end of the second transmission rod 33 is connected to a bushing, which is connected to a transmission assembly 36. The other end of the transmission assembly 36 is connected to a motor 37. The slider 34 has a sensing part on one side of the corresponding limit switch group. The movement position of the guide plate 35 is controlled by the cooperation of the sensing part and the limit switch 41.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum sealing machine with a handle, a snap-fit ​​mechanism, and a telescopic guide, comprising: The main body (1) and the cover (2) disposed on the main body (1) are characterized in that, The main body (1) is provided with a cover (11), and the cover (11) and the main body (1) form a cavity. The cavity is provided with a telescopic guide mechanism (3) and a circuit board (4). The main body (1) has a lock seat (12) on both sides of the cover (11). The cover (2) is provided with a locking hook assembly, which is configured to operate between a locked state and an unlocked state. In the locked state, the cover (2) is fastened to the main body (1), and the locking hook assembly is hooked to the lock seat (12). In the unlocked state, the locking hook assembly is disengaged from the lock seat (12), and the cover (2) can move away from the main body (1).

2. The vacuum sealing machine with handle fastening and telescopic guide as described in claim 1, characterized in that, The cover (2) has a limiting hole at the position corresponding to the lock seat (12), and the cover (2) has mounting plates (25) on both sides near the limiting hole.

3. The vacuum sealing machine with handle fastening and telescopic guide as described in claim 2, characterized in that, The locking hook assembly includes: a handle (21), a first transmission rod (22), a connecting rod (23), and a hook (24); the handle (21) is provided with the first transmission rod (22), the two ends of the first transmission rod (22) are provided with the connecting rod (23), and the end of the connecting rod (23) away from the first transmission rod (22) is provided with a hook (24), and the hook (24) is slidably disposed on the mounting plate (25).

4. The vacuum sealing machine with handle fastening and telescopic guide as described in claim 1, characterized in that, The telescopic flow guiding mechanism (3) is provided with a flow guiding plate (35). The flow guiding plate (35) has multiple air guiding channels at the first end. The air guiding channels are used to guide the gas in the vacuum bag into the main body (1). The flow guiding plate (35) is connected to a slider (34) at the second end. The slider (34) is connected to a second transmission rod (33). The second transmission rod (33) is connected to a transmission assembly (36).

5. The vacuum sealing machine with handle fastening and telescopic guide as described in claim 4, characterized in that, The telescopic guide mechanism (3) is also provided with a housing (31), the housing (31) is provided with a plurality of slide rails (32), and the slider (34) is slidably disposed on the slide rails (32).

6. The vacuum sealing machine with handle fastening and telescopic guide as described in claim 4, characterized in that, The circuit board (4) has a limit switch (41) on the side near the telescopic guide mechanism (3), and the slider (34) has a sensing part on the side corresponding to the limit switch (41).

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