Automatic unlocking device for a vacuum apparatus

Abstract

The utility model relates to an automatic unlocking device for vacuum equipment, including upper cover, base, press switch formula combination fastener, vacuumizing component and air release component, the press switch formula combination fastener is realized buckle between upper cover and base, upper cover lower surface has first vacuum groove, and the upper surface of base has second vacuum groove, and the first vacuum groove and second vacuum groove are sealed combination into vacuum chamber after upper cover and base cover combination, and vacuumizing is carried out through vacuumizing component in vacuum chamber, and the air release component is carried out air release to the vacuum chamber, and the press switch formula combination fastener is carried out vacuumizing through vacuumizing device first, and then the air release component carries out air release and realizes automatic unlocking.

Description

Technical Field

[0001] This utility model belongs to the field of sealing machine technology, specifically relating to an automatic unlocking device for vacuum equipment. Background Technology

[0002] Currently, vacuum equipment (sealing machines, nozzle machines, etc.) generally uses a mechanical or automatic locking structure when the cover and base are closed. Mechanical locking structures are usually unlocked by turning an external lever, while automatic locking structures are usually locked and unlocked by a cylinder, motor, or electromagnetic drive.

[0003] Using the former as the locking structure requires consumers to unlock it by turning it during operation, resulting in a poor user experience; using an automatic locking structure can easily lead to damage to the drive components due to prolonged use, causing the entire sealing machine to malfunction.

[0004] This solution was developed to provide users with an automatic unlocking device that offers a better feel and the stability of a mechanical locking structure. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an automatic unlocking device for vacuum equipment, which can realize automatic unlocking.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic unlocking device for vacuum equipment, including an upper cover, a base, a press-to-switch combination fastener, a vacuuming component and a venting component, wherein the upper cover and the base are fastened together by the press-to-switch combination fastener; The lower surface of the upper cover has a first vacuum groove, and the upper surface of the base has a second vacuum groove. After the upper cover and the base are closed, the first vacuum groove and the second vacuum groove are sealed together to form a vacuum chamber. The vacuum chamber is evacuated by a vacuum pumping assembly, and the vacuum chamber is vented by a venting assembly. The press-to-switch combination fastener is automatically released by first evacuating the vacuum using a vacuum pump and then releasing the air using a venting assembly.

[0007] Furthermore, an air intake hole and an air release hole are formed in the first vacuum tank or the second vacuum tank, or an air intake hole and an air release hole are formed in the first vacuum tank and the second vacuum tank respectively. The air intake port is connected to the air intake end of the vacuum assembly, and the air vent is connected to the air inlet end of the air vent assembly.

[0008] Furthermore, the press-to-switch combination fastener includes an upper fastener and a lower fastener, the upper fastener or the lower fastener is disposed on the lower surface of the upper cover, and the lower fastener or the upper fastener is disposed on the base, and the upper fastener and the lower fastener are compatible with each other; The upper fastener includes a hook, and the lower fastener includes a base, a reset body, a pressing seat, a rotating hook, and a toggle assembly. A receiving groove is formed on the upper surface of the base, and the pressing seat is slidably connected vertically within the receiving groove. A notch is formed on one side of the pressing seat, and a rotating hook is hinged within the notch. The reset body is located between the pressing seat and the bottom of the receiving groove. A switching hole is formed on one side of the receiving groove, and the switching hole includes a vertical portion, a locking portion, and a top abutment, arranged sequentially from top to bottom. The locking part is wider than the vertical part. The left side line of the locking part coincides with the left side line of the vertical part. The right side line of the locking part forms a vertical angle with the right side line of the vertical part. The locking part is located below the locking part and corresponds vertically to the vertical part. The lower left side line of the locking part is the first inclined side, and the left side line of the top is the second inclined side. The angle between the first inclined side and the second inclined side is an acute angle. A rotating block is formed on one side of the pressing seat and located in the switching hole. The rotating block has V-shaped notches on both sides. The upper fastener moves downward by pressing against the pressing seat, causing the rotating block to deflect within the locking part. Then, the V-shaped notch of the rotating block abuts against the vertical angle to achieve the engagement of the hook and the rotating hook, or causes the deflected rotating block to abut against the inclined side and deflect into a vertical state, extending into the vertical part. The actuating component actuates the hook when the rotating block extends into the vertical part, causing the hook to disengage from the rotating hook.

[0009] Furthermore, the lower surface of the hook claw end of the hook member has a first inclined surface facing the side of the rotating hook, and the upper surface of the hook claw end of the rotating hook has a second inclined surface facing the side of the hook member; when the hook member moves downward and the second inclined surface abuts against the first inclined surface, the rotating hook rotates counterclockwise so that the hook claw end of the hook member extends into the lower side of the hook claw end of the rotating hook.

[0010] Furthermore, a groove is formed on the lower surface of the pressing seat, a positioning post is formed in the middle of the groove, and the reset body is sleeved on the outer circumferential surface of the positioning post.

[0011] Furthermore, the pressing seat has mounting holes that extend through both sides, and one of the mounting holes has a narrowed opening. The rotating block has two spaced deformation clips on its surface. The two deformation clips extend from the locking opening into the mounting hole through deformation and lock in place, rotating around the axis of the mounting hole.

[0012] Furthermore, the actuating assembly includes a toggle block disposed on the side wall of the receiving groove. The lower surface of the toggle block is inclined. A contact block is formed on the back of the rotating hook. The contact block corresponds vertically to the toggle block and abuts against the toggle block. The rotating hook and the hook are disengaged.

[0013] Furthermore, connecting plates are formed on the two outer side walls of the base, and connecting holes are provided on the connecting plates.

[0014] Furthermore, a positioning groove is provided on the lower surface of the seat.

[0015] Furthermore, the hook includes a connecting part, an extension part, and a hook claw part, which are connected sequentially from top to bottom, and the connecting part extends into the upper cover and is fixedly connected.

[0016] Furthermore, there are two upper fasteners located on both sides of the lower surface of the upper cover, and the number of lower fasteners corresponds vertically to the number of upper fasteners.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In this invention, during unhooking, the vacuum assembly evacuates the vacuum chamber, causing the top cover and base to come closer together, so that the hook abuts against the pressing seat. The pressing seat moves downward, and the rotating block first abuts against the first inclined side and deflects. The rotating block continues to deflect until it extends into the abutting top. At this time, the rotating block is in a vertical state. Then, the pressure relief assembly releases air from the vacuum chamber. Under the action of the reset body, the pressing seat and the hook move upward. When the rotating block moves into the vertical part, the actuating assembly drives the rotating block to rotate counterclockwise, causing the hook and the rotating hook to disengage, thus achieving automatic unhooking. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the base hidden portion of the shell in this utility model; Figure 2 This is a three-dimensional structural diagram of the upper cover in this invention; Figure 3 This is a three-dimensional structural diagram of the base in this invention; Figure 4 This is a side view of the structure of the upper and lower fasteners after they are engaged in this utility model. Figure 5 This is a three-dimensional structural diagram of the upper and lower fasteners after they are fitted together in this utility model; Figure 6 This is a three-dimensional structural diagram of the present invention after the upper and lower fasteners are fitted together and the base body is hidden. Figure 7 This is a cross-sectional view of the upper and lower fasteners after they are fitted together in this utility model. Figure 8This is a side view of the middle seat of this utility model. Figure 9 This is a three-dimensional structural diagram of the base body of this utility model; Figure 10 This is a three-dimensional structural diagram of the hook component in this utility model; Figure 11 This is a flowchart illustrating the unfastening process in this utility model; Figure 12 This is a flowchart illustrating the fastening process in this utility model.

[0019] The markings in the diagram are: 1. Top cover; 11. First vacuum groove; 2. Base; 21. Second vacuum groove; 3. Upper fastener; 31. Hook; 311. Connecting part; 312. Extension part; 313. Claw part; 314. First inclined surface; 4. Lower fastener; 41. Seat body; 411. Receiving groove; 412. Switching hole; 4121. Vertical part; 4122. Locking part; 4123. Top abutment; 4124. Vertical angle; 4125. First inclined side; 4126. Second inclined side; 413. Connecting plate; 414. Positioning groove; 415. Guide protrusion; 42. Reset body; 43. Pressing seat; 431. Rotating block; 4311. V-shaped notch; 432. Guide channel; 44. Rotating hook; 441. Second inclined surface; 442. Contact block; 45. Pulling block. Detailed Implementation

[0020] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0021] like Figures 1-10 As shown, vacuum equipment includes sealing machines, nozzle machines, and similar instruments. This embodiment provides an automatic unlocking device for vacuum equipment, including an upper cover 1, a base 2, a press-to-switch combination fastener, a vacuuming component, and a venting component.

[0022] The lower rear surface of the top cover 1 and the upper rear surface of the base 41 are hinged together by a hinge component. The hinge component can be a commonly used hinge component in existing sealing machines, and will not be described in detail here.

[0023] The lower surface of the upper cover 1 has a first vacuum groove 11, and the upper surface of the base 2 has a second vacuum groove 21. After the upper cover 1 and the base 2 are closed, the first vacuum groove 11 and the second vacuum groove 21 are sealed together to form a vacuum chamber. The vacuum chamber is evacuated by a vacuum pumping assembly and vented by a venting assembly. Specifically, a closed-loop sealing groove is formed on the outside of the first vacuum groove 11 and the second vacuum groove 21. An air intake hole and an air vent are formed in the first vacuum groove 11 or the second vacuum groove 21. The air intake hole is connected to the vacuum pumping assembly through an air pipe, and the air vent is connected to the venting assembly through an air pipe. The vacuum pumping assembly can be an existing air pump or other structure that can achieve this function, and the venting assembly can be a valve body or other structure that can achieve the venting function.

[0024] The press-to-switch combination fastener uses a vacuuming device to first create a vacuum, and then a venting component to release the air, achieving automatic release. Specifically, the press-to-switch combination fastener includes an upper fastener 3 and a lower fastener 4. In this design, there are two sets of upper fasteners 3 and lower fasteners 4, located on opposite sides of the lower surface of the upper cover 1 and the upper surface of the base 2, respectively. The upper fastener 3 is located on the lower surface of the upper cover 1, and the lower fastener 4 is located on the upper surface of the base 2.

[0025] The upper fastener 3 includes a hook 31, which includes a connecting part 311, an extension part 312, and a claw part 313. The connecting part 311, the extension part 312, and the claw part 313 are connected sequentially from top to bottom. The connecting part 311 extends into the upper cover 1 and is fixedly connected. The lower surface of the claw part 313 has a first inclined surface 314.

[0026] The lower fastener 4 includes a base 41, a reset body 42, a pressing seat 43, a rotating hook 44, and a toggle assembly. The base 2 has mounting grooves on both sides of its upper surface. The base 41 is installed in the mounting grooves. A receiving groove 411 is formed on the upper surface of the base 41. A switching hole 412 is formed on one side of the receiving groove 411. The switching hole 412 includes a vertical portion 4121, a locking portion 4122, and a top abutment 4123. The vertical portion 4121, the locking portion 4122, and the top abutment 4123 are arranged sequentially from top to bottom. The locking portion 4122 is wider. With respect to the width of the vertical portion 4121, the left edge of the locking portion 4122 coincides with the left edge of the vertical portion 4121, and the right edge of the locking portion 4122 forms a vertical angle 4124 with the right edge of the vertical portion 4121. The locking portion 4122 is located below the locking portion 4122 and corresponds vertically to the vertical portion 4121. The lower left edge of the locking portion 4122 is the first hypotenuse 4125, and the left edge of the top 4123 is the second hypotenuse 4126. The angle between the first hypotenuse 4125 and the second hypotenuse 4126 is an acute angle.

[0027] Preferably, connecting plates 413 are formed on the two outer side walls of the base 41, and connecting holes are provided on the connecting plates 413. The connecting plates 413 are connected to the adapter columns in the inner cavity of the base 2 through the connecting holes. A positioning groove 414 is provided on the lower surface of the base 41, and a positioning block is formed on the lower surface of the inner cavity of the base 2. The positioning block and the positioning groove 414 are adapted to each other to play a positioning role and facilitate installation.

[0028] The pressing seat 43 is slidably connected to the receiving groove 411. A notch is formed on one side of the pressing seat 43. A rotating hook 44 is hinged in the notch. A torsion spring is provided at the connection between the rotating hook 44 and the notch. The upper surface of the rotating hook 44 has a second inclined surface 441. The first inclined surface 314 and the second inclined surface 441 are adapted to each other. The reset body 42 is located between the pressing seat 43 and the bottom of the receiving groove 411. Specifically, the reset body 42 is a spring.

[0029] Preferably, a groove is formed on the lower surface of the pressing seat 43, and a positioning post is provided in the middle of the groove, and the reset body 42 is sleeved on the positioning post.

[0030] A rotating block 431 is formed on one side of the pressing base 43 and located in the switching hole 412. The rotating block 431 has V-shaped notches 4311 on both sides. Specifically, the pressing base 43 has mounting holes that pass through both sides. One of the mounting holes has a narrow opening. Two spaced deformation clips are formed on the surface of the rotating block 431. The two deformation clips extend from the locking opening into the mounting hole through deformation and lock and rotate around the axis of the mounting hole.

[0031] Preferably, the pressing seat 43 has guide channels 432 extending through the upper and lower surfaces on its two sides, and guide protrusions 415 are formed on the side wall of the corresponding receiving groove 411, the guide protrusions 415 and the guide channels 432 being adapted to each other.

[0032] When the rotating block 431 extends into the vertical part 4121, the actuating component actuates the hook 31, causing the hook 31 and the rotating hook 44 to disengage. Specifically, the actuating component includes a toggle block 45, which is disposed on the side wall of the receiving groove 411. The lower surface of the toggle block 45 is inclined. A contact block 442 is formed on the back of the rotating hook 44. The contact block 442 corresponds to the toggle block 45 vertically and abuts against the toggle block 45, causing the rotating hook 44 and the hook 31 to disengage.

[0033] Preferably, the press-to-switch combination fastener can adopt other similar structures.

[0034] Activation principle: such as Figure 11As shown, when the upper cover 1 and the base 41 are closed, the upper fastener 3 and the lower fastener 4 are fastened by pressing the upper cover 1. The specific steps for fastening the upper fastener 3 and the lower fastener 4 are as follows: Press the upper cover 1, the hook 31 extends into the receiving groove 411 of the base 41, the hook 31 abuts against the rotating hook 44, the rotating hook 44 rotates counterclockwise, the hook 31 extends under the rotating hook 44 and the rotating hook 44 resets, the hook 31 abuts against the pressing seat 43, the pressing seat 43 moves downward, the rotating block 431 abuts against the first inclined side 4125 and deflects, then the upper cover 1 is released, under the action of the reset body 42, the pressing seat 43 moves upward, the V-shaped notch 4311 of the rotating block 431 is stopped at the vertical angle 4124, and the fastening is achieved.

[0035] Unfastening principle: such as Figure 12 As shown, the vacuum assembly evacuates the vacuum chamber. The upper cover 1 and the base 2 move closer together, causing the hook 31 to abut against the pressing seat 43. The pressing seat 43 moves downward, and the rotating block 431 first abuts against the first inclined edge 4125 and deflects. The rotating block 431 continues to deflect until it extends into the top 4123. At this time, the rotating block 431 is in a vertical state. Then, the pressure relief assembly releases air from the vacuum chamber. Under the action of the reset body 42, the pressing seat 43 and the hook 31 move upward. When the rotating block 431 moves into the vertical part 4121, during the movement, the contact block 442 on the rotating hook 44 abuts against the lever 45 in the receiving groove 411. Figure 5 As shown, rotating hook 44 clockwise deflects it to disengage from hook 31, thus achieving automatic unlocking.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. An automatic unlocking device for vacuum equipment, characterized in that: It includes a top cover, a base, a press-to-switch combination fastener, a vacuum assembly, and a venting assembly. The top cover and the base are fastened together by the press-to-switch combination fastener. The lower surface of the upper cover has a first vacuum groove, and the upper surface of the base has a second vacuum groove. After the upper cover and the base are closed, the first vacuum groove and the second vacuum groove are sealed together to form a vacuum chamber. The vacuum chamber is evacuated by a vacuum pumping assembly, and the vacuum chamber is vented by a venting assembly. The press-to-switch combination fastener is automatically released by first evacuating the vacuum using a vacuum pump and then releasing the air using a venting assembly.

2. The automatic unlocking device for vacuum equipment according to claim 1, characterized in that: The first vacuum tank or the second vacuum tank has an air intake hole and an air vent, or the first vacuum tank and the second vacuum tank have an air intake hole and an air vent respectively. The air intake port is connected to the air intake end of the vacuum assembly, and the air vent is connected to the air inlet end of the air vent assembly.

3. The automatic unlocking device for vacuum equipment according to claim 1, characterized in that: The press-to-switch combination fastener includes an upper fastener and a lower fastener. The upper fastener or the lower fastener is disposed on the lower surface of the upper cover, and the lower fastener or the upper fastener is disposed on the base. The upper fastener and the lower fastener are compatible with each other. The upper fastener includes a hook, and the lower fastener includes a base, a reset body, a pressing seat, a rotating hook, and a toggle assembly. A receiving groove is formed on the upper surface of the base, and the pressing seat is slidably connected vertically within the receiving groove. A notch is formed on one side of the pressing seat, and a rotating hook is hinged within the notch. The reset body is located between the pressing seat and the bottom of the receiving groove. A switching hole is formed on one side of the receiving groove, and the switching hole includes a vertical portion, a locking portion, and a top abutment, arranged sequentially from top to bottom. The locking part is wider than the vertical part. The left side line of the locking part coincides with the left side line of the vertical part. The right side line of the locking part forms a vertical angle with the right side line of the vertical part. The locking part is located below the locking part and corresponds vertically to the vertical part. The lower left side line of the locking part is the first inclined side, and the left side line of the top is the second inclined side. The angle between the first inclined side and the second inclined side is an acute angle. A rotating block is formed on one side of the pressing seat and located in the switching hole. The rotating block has V-shaped notches on both sides. The upper fastener moves downward by pressing against the pressing seat, causing the rotating block to deflect within the locking part. Then, the V-shaped notch of the rotating block abuts against the vertical angle to achieve the engagement of the hook and the rotating hook, or causes the deflected rotating block to abut against the inclined side and deflect into a vertical state, extending into the vertical part. The actuating component actuates the hook when the rotating block extends into the vertical part, causing the hook to disengage from the rotating hook.

4. An automatic unlocking device for a vacuum equipment according to claim 3, characterized in that: The hook has a first inclined surface on the lower surface of the claw end facing the rotating hook, and a second inclined surface on the upper surface of the claw end facing the hook. When the hook moves downward and the second inclined surface abuts against the first inclined surface, the rotating hook rotates counterclockwise, causing the claw end of the hook to extend into the lower side of the claw end of the rotating hook.

5. An automatic unlocking device for a vacuum device according to claim 3, characterized in that: A groove is formed on the lower surface of the pressing seat, and a positioning post is formed in the middle of the groove. The reset body is sleeved on the outer circumference of the positioning post.

6. An automatic unlocking device for a vacuum equipment according to claim 3, characterized in that: The pressing seat has mounting holes that extend through both sides. One of the mounting holes has a narrow opening. The rotating block has two spaced deformation clips on its surface. The two deformation clips extend from the locking opening into the mounting hole through deformation and lock in place, rotating around the axis of the mounting hole.

7. An automatic unlocking device for a vacuum device according to claim 3, characterized in that: The actuating assembly includes a toggle block disposed on the side wall of the receiving groove. The lower surface of the toggle block is inclined. A contact block is formed on the back of the rotating hook. The contact block corresponds vertically to the toggle block and abuts against the toggle block. The rotating hook and the hook are disengaged.

8. An automatic unlocking device for a vacuum equipment according to claim 3, characterized in that: Connecting plates are formed on the two outer side walls of the base, and connecting holes are provided on the connecting plates.

9. An automatic unlocking device for a vacuum equipment according to claim 3, characterized in that: The lower surface of the base is provided with a positioning groove.

10. An automatic unlocking device for a vacuum equipment according to claim 3, characterized in that: The hook includes a connecting part, an extension part, and a hook claw part, which are connected sequentially from top to bottom. The connecting part extends into the upper cover and is fixedly connected.

Images