Vacuum sealing machine with knob cover locking mechanism
The vacuum sealing machine's lid is locked and unlocked via a knob-locking mechanism, solving the problem of inconvenient operation in existing technologies and providing convenient knob operation and good airtightness control.
Patent Information
- Application Number
- CN202520966434.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
- Estimated Expiration
- 2035-05-16
AI Technical Summary
Existing vacuum sealing machines require strong pressing when unlocking and fastening the cover, which is inconvenient to operate and difficult to achieve under negative pressure.
The cover is locked and unlocked by a knob, and the hook and latch design ensures that the cover fits tightly with the main body. The airtightness is controlled by the cooperation of the piston and the air valve.
The operation is simplified and the ease of use is improved. The knob operation is effortless and intuitive, ensuring the airtightness of the cover when closed and the air release effect when unlocking.
Smart Images

Figure CN224257048U_ABST
Abstract
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 knob locking mechanism. 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] Currently, vacuum sealing machines generally open the cover by pressing the unlocking buttons located on both sides of the main body. However, because the vacuum chamber is under negative pressure, the unlocking button needs to be pressed hard to unlock it. Similarly, the cover also needs to be pressed hard to lock it onto the main body, which causes great inconvenience to the user. Utility Model Content
[0004] This invention provides a vacuum sealing machine with a knob locking mechanism, which can effectively solve the above problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a vacuum sealing machine with a knob locking mechanism, comprising: a main body and a cover;
[0007] The cover is rotatably mounted on one side of the main body; the main body has a plurality of first hook grooves, and the main body has a receiving cavity, in which a knob locking mechanism is provided corresponding to the first hook grooves; the cover has a latch at the position corresponding to the first hook grooves, and the knob locking mechanism is configured to operate between a locked state and an unlocked state. In the locked state, the knob locking mechanism is hooked to the latch, and the cover is fastened to the main body; in the unlocked state, the knob locking mechanism is disengaged from the latch, and the cover can move away from the main body.
[0008] As a further improvement, the accommodating cavity has a first connecting support formed at the position of the first hook groove, and a limiting plate is provided near the position of the first connecting support. The limiting plate is used to connect the piston, and the first connecting support is connected to a second connecting support.
[0009] As a further improvement, the accommodating cavity is provided with an air valve at the end of the piston away from the first connecting support.
[0010] As a further improvement, the knob locking mechanism includes: a locking hook, a transmission rod, and a knob. Both ends of the transmission rod are provided with locking hooks, and the knob is connected to the end of the locking hook away from the transmission rod.
[0011] As a further improvement, the locking hook has a through hole for connecting the transmission rod, a locking block is provided on the side of the locking hook near the knob, a rotating part is provided on the locking hook corresponding to the first hook groove, and a number of locking plates are provided at intervals on the other side of the locking hook away from the knob, and an impact part is provided near the locking plate.
[0012] As a further improvement, the rotating part is provided with a second hook groove for engaging the hook.
[0013] As a further improvement, the side of the rotating part is provided with an abutment portion.
[0014] As a further improvement, the piston is provided with a trigger part on the side near the knob locking mechanism.
[0015] The beneficial effects of this utility model are:
[0016] This invention uses a knob-locking mechanism to lock and unlock the cover, eliminating the need for forceful pressing of the unlock button or the cover itself. This significantly reduces operational difficulty and improves ease of use. The knob operation is intuitive and effortless; users simply rotate the knob to lock and unlock the cover, avoiding the difficulty of unlocking under negative pressure conditions caused by traditional pressing methods. The knob-locking mechanism, through the hook and latch design, ensures a tight fit between the cover and the main body when closed. The piston and valve design ensures airtightness of the vacuum chamber when the cover is locked, as they abut against each other. When the cover is unlocked, the piston and valve disengage, releasing air and facilitating the opening of the cover. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the overall structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0019] Figure 2 This is a cross-sectional view of the open state of the body of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0020] Figure 3 This is a cross-sectional view of the closed state structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0021] Figure 4 This is a schematic diagram of the internal structure of the main body of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0022] Figure 5 This is an enlarged schematic diagram of a portion of the structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0023] Figure 6 This is a bottom view schematic diagram of the main body structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0024] Figure 7 This is a schematic diagram of the knob locking mechanism of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0025] Figure 8 This is a schematic diagram of the locking hook structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0026] Figure 9 This is a front view schematic diagram of the locking hook structure of a vacuum sealing machine with a knob locking mechanism according to this utility model.
[0027] In the figure: 1-Main body, 11-First hook groove, 12-First connecting support, 13-Second connecting support, 131-Wing, 14-Limiting plate, 15-Air valve, 2-Cover, 21-Hook, 3-Knob locking cover mechanism, 31-Hook, 311-Through hole, 312-Clocking block, 313-Rotating part, 314-Abutting part, 315-Clocking plate, 316-Impact part, 317-Second hook groove, 32-Transmission rod, 33-Knob, 4-Piston, 41-Triggering part. Detailed Implementation
[0028] 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.
[0029] 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.
[0030] Reference Figure 1-3 As shown, a vacuum sealing machine with a knob locking mechanism includes: a main body 1 and a cover 2;
[0031] The cover 2 is rotatably mounted on one side of the main body 1. Several first hook grooves 11 are formed on the main body 1, and a receiving cavity is formed inside the main body 1. A knob locking cover mechanism 3 is provided in the receiving cavity corresponding to the first hook grooves 11. A hook 21 is provided at the position of the cover 2 corresponding to the first hook grooves 11. The knob locking cover mechanism 3 is configured to operate between the locked state and the unlocked state. In the locked state, the knob locking cover mechanism 3 hooks onto the hook 21, and the cover 2 is fastened to the main body 1. In the unlocked state, the knob locking cover mechanism 3 disengages from the hook 21, and the cover 2 can move away from the main body 1. The knob locking cover mechanism realizes the locking and unlocking of the cover without having to press the unlock button or the cover forcefully, which greatly reduces the difficulty of operation and improves the convenience of use. The knob locking cover mechanism ensures that the cover fits tightly with the main body in the closed state through the hook and hook design.
[0032] Furthermore, referring to Figure 4-6As shown, a cover 2 is rotatably connected to one side of the main body 1. Several first hook grooves 11 are formed on the main body 1. A hook 21 is provided on the cover 2 at the position corresponding to the first hook groove 11. When the cover 2 is fastened to the main body 1, the hook 21 passes through the first hook groove 11 and connects to the knob locking mechanism 3. A receiving cavity is formed inside the main body 1. A knob locking mechanism 3 is provided in the receiving cavity corresponding to the first hook groove 11. A first connecting support 12 is formed in the receiving cavity 1 at the position of the first hook groove 11. A second connecting support 13 is connected to the first connecting support 12. The first connecting support 12 and the second connecting support 13 are fixedly connected by bolts. The first connecting support 12 and the second connecting support 13 together form a mechanism for fixing the knob. The mounting groove of the locking mechanism 3 is provided with a limiting plate 14 near the first connecting support 12. The limiting plate 14 is used to connect the piston 4. The receiving cavity 1 is provided with an air valve 15 at the end of the piston 4 away from the first connecting support 12. The piston 4 is provided with a spring and a trigger part 41. When the cover 2 is in the locked state, the piston 4 is tightly fitted with the air valve 15 by the spring, so that the air valve 15 is in a sealed state. The air valve 15 is connected to the vacuum chamber, thereby improving the airtightness of the vacuum chamber during heating and sealing. When the cover 2 is in the unlocked state, the impact part 316 on the locking hook 31 contacts the trigger part 41, so that the piston 4 is pushed open and disengaged from the air valve 15, so as to release air and restore the air pressure in the vacuum chamber to a normal state.
[0033] Furthermore, referring to Figure 7-9 As shown, to improve the convenience of closing the cover 2, a knob-locking cover mechanism 3 is provided, including: a locking hook 31, a transmission rod 32, and a knob 33. Both ends of the transmission rod 32 are provided with locking hooks 31, which are located in the first hook groove 11. The rotation of the locking hooks 31 enables connection and disengagement with the latch 21. The transmission rod 32 passes through the receiving cavity of the main body 1 and is located on the first connecting support 12. The first end of the transmission rod 32 protrudes from the side wall of the main body 1 for connecting the locking hooks 31. The second end of the transmission rod 32 is connected to the side wall of the accommodating cavity. By rotating the knob 33, the locking hook 31 on the side near the knob 33 is driven to rotate. The locking hook 31 drives the transmission rod 32 to rotate and, through the transmission rod 32, drives the locking hook 31 on the other side to rotate, thereby realizing the connection and disengagement of the locking hook 31 and the latch 21. In order to enable the transmission rod 32 to drive the locking hook 31 to rotate better, the cross-sectional shape of the connection between the transmission rod 32 and the locking hook 31 is set to a rectangle or a near-ellipse shape to improve the connection stability between the locking hook 31 and the transmission rod 32.
[0034] The locking hook 31 has a through hole 311 for connecting the transmission rod 32. The locking hook 31 has a locking block 312 on the side near the knob 33. The locking block 312 is used to improve the connection stability between the knob 33 and the locking hook 31. The locking hook 31 has a rotating part 313 corresponding to the first hook groove 11. The rotating part 313 has a second hook groove 317 for engaging the hook 21. The second hook groove 317 is used to connect with the hook 21 in the locked state. The locking hook 31 has several locking plates 315 spaced apart on the other side away from the knob 33. The spaced intervals are used to connect the second connecting support 13. The locking plates 315 are used to limit the movement of the locking hook 31. An impact part 316 is provided near the locking plate 315. The impact part 316 is used to contact the trigger part 41 on the piston 4 when the cover 2 is unlocked, thereby causing the air valve 15 to release air.
[0035] 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 knob-locking cap mechanism, characterized in that, include: Main body (1) and cover (2); The cover (2) is rotatably mounted on one side of the main body (1); The main body (1) has a plurality of first hook grooves (11) formed therein, and a receiving cavity is formed therein. A knob locking cover mechanism (3) is provided in the receiving cavity corresponding to the first hook grooves (11). A hook (21) is provided at the position of the cover (2) corresponding to the first hook grooves (11). The knob locking cover mechanism (3) is configured to operate between a locked state and an unlocked state. In the locked state, the knob locking cover mechanism (3) hooks onto the hook (21) and the cover (2) is fastened to the main body (1). In the unlocked state, the knob locking cover mechanism (3) disengages from the hook (21) and the cover (2) can move away from the main body (1).
2. The vacuum sealing machine with a knob locking mechanism according to claim 1, characterized in that, The accommodating cavity has a first connecting support (12) formed at the position of the first hook groove (11), and a limiting plate (14) is provided near the first connecting support (12). The limiting plate (14) is used to connect the piston (4), and the first connecting support (12) is connected to a second connecting support (13).
3. The vacuum sealing machine with a knob-locking mechanism according to claim 2, characterized in that, The accommodating cavity is provided with an air valve (15) at the end of the piston (4) away from the first connecting support (12).
4. The vacuum sealing machine with a knob locking mechanism according to claim 1, characterized in that, The knob locking mechanism (3) includes: a locking hook (31), a transmission rod (32) and a knob (33). Both ends of the transmission rod (32) are provided with locking hooks (31), and the knob (33) is connected to the end of the locking hook (31) away from the transmission rod (32).
5. The vacuum sealing machine with a knob-locking cap mechanism according to claim 4, characterized in that, The locking hook (31) has a through hole (311) for connecting the transmission rod (32). The locking hook (31) has a locking block (312) on the side near the knob (33). The locking hook (31) has a rotating part (313) corresponding to the first hook groove (11). The locking hook (31) has a plurality of locking plates (315) spaced apart on the other side away from the knob (33). An impact part (316) is provided near the locking plate (315).
6. The vacuum sealing machine with a knob locking mechanism according to claim 5, characterized in that, The rotating part (313) is provided with a second hook groove (317) for engaging the hook (21).
7. The vacuum sealing machine with a knob locking mechanism according to claim 5, characterized in that, The rotating part (313) is provided with an abutment part (314) on its side.
8. The vacuum sealing machine with a knob locking mechanism according to claim 2, characterized in that, The piston (4) has a trigger part (41) on the side near the knob locking mechanism (3).