Vacuum sealer with digital pressure sensing module
By introducing a digital pressure sensing module into the vacuum sealing machine, the problem that mechanical pressure switches cannot selectively control the sealing pressure is solved, and accurate pressure detection and convenient sealing operation are achieved.
Patent Information
- Application Number
- CN202422530750.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Existing vacuum sealing machines rely on mechanical pressure switches to detect pressure, and cannot selectively control the sealing pressure, which is inconvenient to use.
The digital pressure sensing module is used to detect the pressure value in the vacuum chamber, and the precise pressure value is output through the control panel for heat sealing to avoid the limitation of mechanical pressure switches.
Accurate detection and control of pressure in the vacuum chamber is achieved, the accuracy and convenience of the seal are improved, and the probability of failure of the mechanical structure is reduced.
Smart Images
Figure CN223148818U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a vacuum sealer with a digital pressure sensing module, which is applied to the field of sealers. Background Art
[0002] At present, the vacuum sealers on the existing market rely on mechanical pressure switches to detect the pressure inside the vacuum sealer. When the set pressure value is reached, the heating and sealing action is started. The mechanical pressure switch usually works based on the principle of a pre-loaded spring, using a diaphragm or a piston as the pressure measuring element. When the process pressure acts on the sensing element (such as a diaphragm or a piston), these elements will deform according to the magnitude of the pressure. As the pressure increases, the sensing element moves and overcomes the pre-tightening force of the spring. When the set threshold is reached, the switch element is triggered, thereby changing the state of the circuit (for example, from a normally closed state to a normally open state). Since the mechanical pressure switch can only start sealing when the preset pressure value is reached and cannot select the corresponding pressure for sealing, it is inconvenient to use. Therefore, in view of the above problems, the utility model designs a vacuum sealer with a digital pressure sensing module. Summary of the Utility Model
[0003] The utility model provides a vacuum sealer with a digital pressure sensing module, which can effectively solve the above problems.
[0004] The utility model is realized as follows:
[0005] A vacuum sealer with a digital pressure sensing module, comprising:
[0006] An upper cover body and a fuselage that are covered with each other. A first groove is provided on the upper cover body, and a second groove corresponding to the first groove is provided on the fuselage. The first groove and the second groove are covered to form a vacuum chamber. A vacuum pumping device communicating with the vacuum chamber is provided inside the upper cover body, and a sealing device is provided in front of the vacuum chamber;
[0007] A detection device is provided inside the upper cover body. The detection device includes a plurality of first through holes provided on the first groove. An installation column is provided inside the upper cover body, and a second through hole communicating with the first through holes is provided inside the installation column. A digital pressure sensing module is installed on the installation column. The detection end of the digital pressure sensing module is arranged inside the second through hole. A control panel is provided on the upper end surface of the upper cover body, and the digital pressure sensing module is electrically connected to the control panel.
[0008] As a further improvement, the vacuum pumping device includes a vacuum pump provided inside the upper cover body, and the vacuum pump communicates with the vacuum chamber through a joint control pressure relief device.
[0009] As a further improvement, a buckle is provided on the fuselage, and a barb adapted to the buckle is provided on the upper cover body. The interlocking pressure relief device includes a pneumatic pushing component disposed in the upper cover body to rotate the barb, and a pressure relief component for deflating the pneumatic pushing component. When the upper cover body is closed with the fuselage, the pneumatic pushing component is inflated and rotates the barb so that the barb is inserted into the buckle. When the pressure relief component controls the pneumatic pushing component to deflate, the barb is separated from the buckle.
[0010] As a further improvement, the pressure relief component includes a support disposed inside the upper cover body and a first conduit and a second conduit mounted on the support. The first conduit is communicated with the vacuum chamber, the second conduit is communicated with the vacuum pump and the pneumatic pushing component. A rocker is rotatably disposed above the support. One end of the rocker is provided with a plug block, and the plug block is used to block the pressure relief port position of the first conduit. A convex block is disposed below the other end of the rocker. A valve core is provided at the top of the second conduit and a first elastic member connected to the valve core is disposed inside the second conduit. The first elastic member keeps the valve core at the pressure relief port position of the second conduit.
[0011] As a further improvement, the interlocking pressure relief device further includes a lifting component disposed on the upper cover body, and the lifting component is used to rotate the rocker so that the interlocking pressure relief device has an initial state and a pressure relief state;
[0012] In the initial state, the plug block blocks the pressure relief port position of the first conduit, and the valve core blocks the pressure relief port position of the second conduit;
[0013] In the pressure relief state, the end of the rocker near the valve core is pressed by the lifting member and rotates, and the convex block moves downward to press the valve core, so that the pressure relief port of the second conduit is opened. The plug block moves upward so that the plug block is separated from the pressure relief port of the first conduit, and the pressure relief port of the first conduit is opened.
[0014] As a further improvement, the pneumatic pushing component includes a cylinder communicated with the second conduit and the vacuum pump. A slidable sealing disc is disposed in the cylinder. The sealing disc is connected to a push rod. A second elastic member abutting against the sealing disc and the bottom wall of the cylinder is sleeved on the push rod. The other end of the push rod is disposed outside the cylinder and connected to the barb.
[0015] As a further improvement, the lifting component includes a handle rotatably disposed on the outer side wall of the upper cover and a dial rotatably disposed on the inner side wall of the upper cover. The handle is connected to the dial through a rotating shaft, and a third elastic member is connected to the bottom of the end of the dial away from the rotating shaft. The dial abuts against the rocker.
[0016] As a further improvement, the sealing device includes a first heat-sealing plate disposed on the upper cover body in front of the first groove, and a second heat-sealing plate corresponding to the first heat-sealing plate is disposed on the machine body. The first heat-sealing plate and the second heat-sealing plate squeeze the bag body relatively and perform heat-sealing.
[0017] As a further improvement, when the upper cover body and the machine body are closed, a vacuum bag reel is further disposed inside, and the vacuum bag reel is used for cutting the vacuum bag.
[0018] The beneficial effect of the present utility model is that: through the detection device disposed on the upper cover body, the detection device includes a plurality of first through holes disposed on the first groove, an installation column is disposed inside the upper cover body, a second through hole communicating with the first through holes is disposed inside the installation column, a digital pressure sensing module is installed on the installation column, the detection end of the digital pressure sensing module is disposed inside the second through hole, a control panel is disposed on the upper end surface of the upper cover body, the digital pressure sensing module is electrically connected to the control panel. By setting the digital pressure sensing module, an accurate pressure value in the vacuum chamber can be detected, and the pressure value is output through the control panel for heat-sealing. The digital pressure sensing module is installed inside the upper cover body, and the detection end of the digital pressure sensing module does not directly contact the vacuum chamber. It contacts the vacuum chamber through the conduction of the second through hole and the first through hole, preventing the diaphragm of the detection end of the digital pressure sensing module from undergoing large deformation due to the continuous extraction of negative pressure in the vacuum chamber and the balance of air pressure when the upper cover body is opened, thereby affecting the detection accuracy. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1 It is a schematic structural diagram provided by an embodiment of the present utility model.
[0021] Figure 2 It is a schematic diagram of the structural change of opening the upper cover body provided by an embodiment of the present utility model.
[0022] Figure 3 It is an enlarged schematic structural diagram of the internal space of the upper cover body and the detection device provided by an embodiment of the present utility model.
[0023] Figure 4 It is a schematic structural diagram of the internal space of the upper cover body provided by an embodiment of the present utility model.
[0024] Figures 5-6 It is a schematic diagram of the structure of the air pressure driving component provided by an embodiment of the utility model.
[0025] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure at AA in the middle.
[0026] Figures 8-9 It is a schematic diagram of the structure of the pressure relief assembly provided in an embodiment of the utility model.
[0027] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure at BB in the middle.
[0028] The accompanying drawings are marked as follows:
[0029] 10. upper cover; 11. first groove; 12. barb;
[0030] 20. body; 21. second groove; 22. buckle;
[0031] 30. Vacuum extraction device; 31. Vacuum pump;
[0032] 40. Joint control pressure relief device; 41. Air pressure push assembly; 411. Air cylinder; 412. Sealing disk; 413. Push rod; 414. Second elastic member; 42. Pressure relief assembly; 421. Support; 422. First conduit; 423. Second conduit; 424. Rocker; 425. Block; 426. Bump; 427. Valve core; 428. First elastic member; 43. Lifting assembly; 431. Handle; 432. Pick; 433. Third elastic member; 434. Rotating shaft;
[0033] 50. Detection device; 51. First through hole; 52. Mounting column; 521. Second through hole; 53. Digital pressure sensing module; 54. Control panel;
[0034] 60. Sealing device; 61. First heat sealing plate; 62. Second heat sealing plate;
[0035] 70. Vacuum bag roll stand. DETAILED DESCRIPTION
[0036] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model.
[0037] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.
[0038] Referring to Figures 1-2 As shown, a vacuum sealer with a digital pressure sensing module 53 includes: an upper cover body 10 and a body 20 that are covered with each other. A first groove 11 is provided on the upper cover body 10, and a second groove 21 corresponding to the first groove 11 is provided on the body 20. The first groove 11 and the second groove 21 are covered to form a vacuum chamber. A vacuum pumping device 30 communicating with the vacuum chamber is provided in the upper cover body 10. The vacuum pumping device 30 is used to pump air out of a vacuum bag so that the internal cavity thereof is in a vacuum state. A sealing device 60 is provided in front of the vacuum chamber. The sealing device 60 is used to thermally seal the vacuum bag after air is pumped out.
[0039] A detection device 50 is provided inside the upper cover body 10. The detection device 50 includes a plurality of first through holes 51 provided on the first groove 11. In this embodiment, the number of the first through holes 51 is 3. An installation post 52 is provided inside the upper cover body 10. A second through hole 521 communicating with the first through holes 51 is provided inside the installation post 52. The diameter of the first through holes 51 is smaller than that of the second through hole 521. A digital pressure sensing module 53 is installed on the installation post 52. The sensing end on the digital pressure sensing module 53 is arranged inside the second through hole 521. The sensing end of the digital pressure sensing module 53 is an electronic pressure sensor. Since the rate of evacuating and balancing the negative pressure in the cavity is extremely fast, if the detection end of the digital pressure sensing module is directly in contact with the vacuum chamber, the pressure on the diaphragm of the detection end of the digital pressure sensing module 53 is extremely large. Therefore, by providing the conduction of the first through holes 51 and the second through hole 521, it is equivalent to buffering the diaphragm of the detection end of the digital pressure sensing module 53, which can not only detect the corresponding pressure value, but also improve the service life and detection accuracy of the digital pressure sensing module 53. A control panel 54 is provided on the upper surface of the upper cover body 10. The digital pressure sensing module 53 is electrically connected to the control panel 54. Compared with the traditional mechanical pressure switch, the digital pressure sensing module 53 can not only detect the accurate pressure value inside the vacuum chamber and output the pressure value through the control panel for heat sealing, but also has a simple structure. On the one hand, it is convenient to replace, and on the other hand, it can reduce the situation of mechanical structure jamming, thus affecting the output of the pressure value.
[0040] Referring to Figures 3-10 As shown, the vacuum pumping device 30 includes a vacuum pump 31 provided inside the upper cover body 10. The vacuum pump 31 is communicated with the vacuum chamber through a joint control pressure relief device 40. A buckle 22 is provided on the machine body 20. A barb 12 adapted to the buckle 22 is provided on the upper cover body 10. The joint control pressure relief device 40 includes a pneumatic pushing component 41 provided inside the upper cover body 10 to rotate the barb 12, and a pressure relief component 42 to deflate the pneumatic pushing component 41. When the upper cover body 10 is covered with the machine body 20, the pneumatic pushing component 41 is inflated and rotates the barb 12 to make the barb 12 embed into the buckle 22. When the pressure relief component 42 controls the pneumatic pushing component 41 to deflate, the barb 12 is separated from the buckle 22.
[0041] Referring to Figures 5-7As shown, the air pressure pushing component 41 includes a cylinder 411 communicating with the second conduit 423 and the vacuum pump 31. A slidable sealing disc 412 is arranged in the cylinder 411. The sealing disc 412 is connected to a push rod 413. A second elastic member 414 that abuts against the sealing disc 412 and the bottom wall of the cylinder 411 is sleeved on the push rod 413. The other end of the push rod 413 is arranged outside the cylinder 411 and connected to the barb 12.
[0042] Referring to Figures 8-10 As shown, the pressure relief component 42 includes a support 421 arranged inside the upper cover body 10, a first conduit 422 and a second conduit 423 mounted on the support 421. The first conduit 422 communicates with the vacuum chamber. The second conduit 423 communicates with the vacuum pump 31 and the air pressure pushing component 41. A seesaw 424 is rotatably arranged above the support 421. A plug 425 is arranged at one end of the seesaw 424. The plug 425 is used to block the pressure relief port position of the first conduit 422. A convex block 426 is arranged below the other end of the seesaw 424. A valve core 427 is arranged at the top of the second conduit 423, and a first elastic member 428 arranged inside the second conduit 423 and connected to the valve core 427. The first elastic member 428 keeps the valve core 427 at the pressure relief port position of the second conduit 423.
[0043] Referring to Figures 1-4 As shown, the interlocking pressure relief device 40 further includes a lifting component 43 arranged on the upper cover body 10. The lifting component 43 is used to rotate the seesaw 424, so that the interlocking pressure relief device 40 has an initial state and a pressure relief state. The lifting component 43 includes a handle 431 rotatably arranged on the outer side wall of the upper cover, and a flap 432 rotatably arranged on the inner side wall of the upper cover. The handle 431 is connected to the flap 432 through a rotating shaft 434. A third elastic member 433 is connected to the bottom of the end of the flap 432 far from the rotating shaft 434. The flap 432 abuts against the seesaw 424.
[0044] The working principle of the combined control pressure relief device 40 is as follows: In the initial state, the plug 425 blocks the pressure relief port of the first conduit 422, and the valve core 427 blocks the pressure relief port of the second conduit 423, making the combined control pressure relief device 40 a sealed space. At this time, vacuum extraction is carried out by a vacuum pump 31. In the pressure relief state, when the vacuum extraction has been completed and the upper cover 10 needs to be opened, the end of the rocker 424 near the valve core 427 is pressed by the lifting member and rotates, and the convex block 426 moves downward to press the valve core 427, so that the pressure relief port of the second conduit 423 is opened to conduct pressure relief. The sealing disc 412 rebounds under the action of the second elastic member 414, and the push rod 413 pushes the barb 12, so that the barb 12 is separated from the buckle 22, and the upper cover 10 can be opened. When the upper cover 10 is opened, since the vacuum chamber is in a negative pressure state at this time, the vacuum chamber needs to be pressure relieved to reach a pressure balance state before the upper cover 10 can be opened. Therefore, the plug 425 moves upward to separate the plug 425 from the pressure relief port of the first conduit 422, the pressure relief port of the first conduit 422 is opened, and external gas can enter the vacuum chamber from the first conduit 422, so that the pressure in the vacuum chamber reaches balance, and the user can open the upper cover 10.
[0045] Since the structure of the combined control pressure relief device 40 is relatively complex, problems such as blockage of the first conduit 422 and the second conduit 423 may occur during use. Therefore, the digital pressure detection module 52 can be used to detect the pressure value in the vacuum chamber in real time, and then infer the cause of the blockage of the combined control pressure relief device 40, which is convenient for maintenance. For example, the preset pressure value in the vacuum chamber is -0.1 Mpa. After vacuum pumping is completed, if it does not reach -0.1 Mpa, it is necessary to check whether there is a problem with the airtightness of the air extraction pump and the first conduit 422. When pressure relief and opening the cover are required, when the handle is lifted upward and it is found that the upper cover 10 cannot be opened, if the air pressure in the vacuum chamber has not reached the balanced air pressure, it is necessary to check whether there is a problem with the airtightness of the first conduit 422. If the air pressure in the vacuum chamber has reached the balanced air pressure, it is necessary to check whether there is a problem with the airtightness of the second conduit 423.
[0046] Reference Figures 1-2 As shown in the figure, the sealing device 60 includes a first heat-sealing plate 61 disposed in front of the first groove 11 on the upper cover 10, and a second heat-sealing plate 62 corresponding to the first heat-sealing plate 61 is disposed on the body 20. The first heat-sealing plate 61 and the second heat-sealing plate 62 squeeze the bag body relatively and perform heat sealing.
[0047] Reference Figures 1-2 As shown in the figure, when the upper cover 10 and the body 20 are closed, a vacuum bag reel 70 is further disposed inside, and the vacuum bag reel 70 is used to cut the vacuum bag.
[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A vacuum sealer with a digital pressure sensing module, characterized in that, Comprising: An upper cover body (10) and a fuselage (20) that are mutually covered. A first groove (11) is provided on the upper cover body (10), and a second groove (21) corresponding to the first groove (11) is provided on the fuselage (20). The first groove (11) and the second groove (21) are covered to form a vacuum chamber. A vacuum pumping device (30) communicating with the vacuum chamber is provided inside the upper cover body (10). A sealing device (60) is provided in front of the vacuum chamber; A detection device (50) is provided inside the upper cover body (10). The detection device (50) includes a plurality of first through holes (51) provided on the first groove (11). An installation post (52) is provided inside the upper cover body (10). A second through hole (521) communicating with the first through holes (51) is provided inside the installation post (52). A digital pressure sensing module (53) is installed on the installation post (52). The sensing end of the digital pressure sensing module (53) is arranged inside the second through hole (521). A control panel (54) is provided on the upper end surface of the upper cover body (10). The digital pressure sensing module (53) is electrically connected to the control panel (54).
2. The vacuum sealer with a digital pressure sensing module according to claim 1, characterized in that, The vacuum pumping device (30) includes a vacuum pump (31) provided inside the upper cover body (10). The vacuum pump (31) communicates with the vacuum chamber through a joint control pressure relief device (40).
3. The vacuum sealer with a digital pressure sensing module according to claim 2, characterized in that, A buckle (22) is provided on the fuselage (20), and a barb (12) adapted to the buckle (22) is provided on the upper cover body (10). The joint control pressure relief device (40) includes a pneumatic pushing component (41) provided inside the upper cover body (10) to rotate the barb (12), and a pressure relief component (42) for deflating the pneumatic pushing component (41). When the upper cover body (10) and the fuselage (20) are covered, the pneumatic pushing component (41) is inflated and rotates the barb (12) to embed the barb (12) into the buckle (22). When the pressure relief component (42) controls the pneumatic pushing component (41) to deflate, the barb (12) is separated from the buckle (22).
4. A vacuum sealer with a digital pressure sensing module according to claim 3, characterized in that The pressure relief component (42) includes a support (421) provided inside the upper cover body (10), a first conduit (422) and a second conduit (423) installed on the support (421). The first conduit (422) communicates with the vacuum chamber. The second conduit (423) communicates with the vacuum pump (31) and the pneumatic pushing component (41). A rocker (424) is rotatably provided above the support (421). One end of the rocker (424) is provided with a plug (425). The plug (425) is used to block the pressure relief port position of the first conduit (422). A convex block (426) is provided below the other end of the rocker (424). A valve core (427) is provided at the top of the second conduit (423), and a first elastic member (428) provided inside the second conduit (423) and connected to the valve core (427) makes the valve core (427) remain at the pressure relief port position of the second conduit (423).
5. A vacuum sealer with a digital pressure sensing module according to claim 4, characterized in that, The combined control pressure relief device (40) further includes a lifting component (43) disposed on the upper cover body (10), and the lifting component (43) is used to rotate the rocker (424) so that the combined control pressure relief device (40) has an initial state and a pressure relief state; In the initial state, the plug (425) blocks the pressure relief port position of the first conduit (422), and the valve core (427) blocks the pressure relief port position of the second conduit (423); In the pressure relief state, the end of the rocker (424) near the valve core (427) is pressed by the lifting member and rotates, and the convex block (426) moves downward to press against the valve core (427), so that the pressure relief port of the second conduit (423) is opened, and the plug (425) moves upward so that the plug (425) is separated from the pressure relief port of the first conduit (422), and the pressure relief port of the first conduit (422) is opened.
6. The vacuum sealer with a digital pressure sensing module according to claim 5, characterized in that, The air pressure pushing component (41) includes a cylinder (411) communicated with the second conduit (423) and the vacuum pump (31). A slidable sealing disc (412) is disposed in the cylinder (411). The sealing disc (412) is connected to a push rod (413). A second elastic member (414) that abuts against the sealing disc (412) and the bottom wall of the cylinder (411) is sleeved on the push rod (413). The other end of the push rod (413) is disposed outside the cylinder (411) and connected to the barb (12).
7. A vacuum sealer with a digital pressure sensing module according to claim 6, characterized in that, The lifting component (43) includes a handle (431) rotatably disposed on the outer side wall of the upper cover, and a dial (432) rotatably disposed on the inner side wall of the upper cover. The handle (431) is connected to the dial (432) through a rotating shaft (434). A third elastic member (433) is connected to the bottom of the end of the dial (432) away from the rotating shaft (434). The dial (432) abuts against the rocker (424).
8. A vacuum sealer with a digital pressure sensing module according to claim 1, characterized in that, The sealing device (60) includes a first heat-sealing plate (61) disposed on the upper cover body (10) in front of the first groove (11). A second heat-sealing plate (62) corresponding to the first heat-sealing plate (61) is disposed on the fuselage (20). The first heat-sealing plate (61) and the second heat-sealing plate (62) squeeze the bag body relatively and perform heat-sealing.
9. A vacuum sealer with a digital pressure sensing module according to claim 1, characterized in that, When the upper cover body (10) and the fuselage (20) are closed, a vacuum bag reel holder (70) is further disposed inside, and the vacuum bag reel holder (70) is used to cut the vacuum bag.