Electric and manual dual-purpose air suction device and vacuum chuck

Abstract

The application relates to a kind of electric and manual dual-purpose air extraction devices and vacuum chuck, which are provided with a machine shell, a power supply, a vacuum pump and a control component, the machine shell is divided into an inner side end and an outer side end, the inner side end of the machine shell is arranged in a working chamber, the outer side end of the machine shell is arranged in an air extraction holding area, the front end of the air extraction device is provided with a sealing component, the air suction port of the vacuum pump is communicated with the sealing cavity of the working chamber at the front end of the air extraction device, and the sealing component has a structure suitable for sealing in the sliding and pulling state of the air extraction device in the working chamber. The vacuum chuck is composed of an air extraction part and a disc part, the disc part is composed of a bottom disc and a handle arranged above the bottom disc for holding, a working chamber is arranged in the handle, and the disc part is further provided with a pipeline communicated with the working chamber and below the bottom disc. Under normal circumstances, the application can be operated by electricity, and under the condition that the battery is exhausted, it can also be manually operated for continuous use.

Description

Technical Field

[0001] This invention belongs to the field of power tools, and particularly relates to a vacuum suction cup device that can be used both electrically and manually, and a vacuum suction cup using the same. Background Technology

[0002] There are two main types of vacuum suction cups. The first type is manually operated, requiring manual evacuation to create a vacuum to adsorb the workpiece. The second type is electrically operated, using a vacuum pump to create a vacuum to adsorb the workpiece. The first type is physically demanding due to its manual operation, while the second type, although electrically operated, cannot be used after the battery is depleted and requires charging. Moreover, the battery must be removed for charging, which is inconvenient. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a convenient, dual-purpose (electric and manual) vacuum suction cup device that allows for both electric and manual operation of the suction cup, even when the battery is depleted.

[0004] A dual-use (electric and manual) air extraction device includes a housing, a power supply, a vacuum pump, and control components. The housing is the main body of the air extraction device and is divided into an inner end and an outer end. The inner end of the housing is located in the working chamber, and the outer end of the housing is provided with an air extraction grip area. A sealing component is provided at the front end of the air extraction device, which is sealed to the working chamber containing the air extraction device. The vacuum pump is provided with an air intake port, which is connected to the sealed cavity of the working chamber at the front end of the air extraction device. The sealing component has a structure that adapts to the air extraction device in a sliding and pulling state within the working chamber.

[0005] The sealing component is a sealing ring, and the sealing surface of the sealing ring has a conical structure. When manually evacuating air, the sealing surface extends outward and retracts inward when venting air.

[0006] A vacuum pump is installed at the front of the housing, and an air intake is provided at the front end of the vacuum pump. The sealing component includes a sealing ring with an opening that seals with the air intake.

[0007] The sealing ring is connected to the vacuum pump by screws. The screws are installed on the screw post at the front end of the vacuum pump. The screw post has screw holes that mate with the screws. The sealing ring has an opening that seals with the screw post. The sealing ring is installed on the vacuum pump through a cover plate and screws on the other side.

[0008] The sealing ring has two openings, each with an annular sealing lip. These annular sealing lips cooperate with the screw post and suction column on the vacuum pump for sealing. A button on the housing controls the start and stop of the vacuum pump. The power supply, a battery compartment, is located at the rear of the housing. The battery compartment is threaded onto the rear cover and contains, in sequence, electrode springs, a battery, a circuit board, and pressure claws, with the pressure claws adjacent to the rear cover. The control components are the circuit board and a button connected to it.

[0009] A vacuum suction cup that can be used both electrically and manually comprises a suction section and a cup body. The suction section is the aforementioned suction device. The suction cup body consists of a base and a handle positioned above the base for gripping. A working chamber, which is a cylindrical cavity, is located within the handle. The handle is supported on the base by two pillars. The suction cup body also includes a pipe connecting the working chamber to the area below the base. A pressure relief mechanism is also included to release the suction cup from its suction state.

[0010] The handle is open at one end and closed at the other end except for the vent hole. A rubber valve is installed on the inside of the closed end, which is close to the vent hole. The rubber valve is fixed by a snap ring and is unidirectional. The main body of the pipeline is a connecting seat, which connects the chassis and the cavity inside the handle.

[0011] The handle is connected to the chassis by screws. One end of the handle is provided with a connecting seat that communicates with the bottom of the chassis. A pipe is provided inside the connecting seat. The pipe communicates with the bottom of the chassis through a connecting hole on the chassis. The connecting seat is connected to one end of the handle by screws. The mounting post of the handle end connecting the connecting seat and the chassis is a hollow structure that accommodates the connecting seat. One end of the pipe on the connecting seat is connected to the connecting hole on the chassis, and the other end is connected to the vent hole inside the handle.

[0012] The handle end of the connecting seat and the outer side of the mounting post of the chassis have a pressure release button mounting port. The pressure release button is mounted on the mounting post by a lever pin. The lever pin passes through the middle of the pressure release button. The pressure release button has a pressing position on one side of the lever pin, and a rubber plug is set on the other side close to the connecting seat. The rubber plug cooperates with the pressure release hole on the connecting seat.

[0013] Beneficial effects: This invention avoids the drawbacks of the two methods mentioned above. Under normal circumstances, it can be operated electrically, and when the battery is depleted, it can still be operated manually to continue using it without delaying the user's work. Moreover, the charging interface is integrated into the product, so there is no need to remove the battery to charge it, making it convenient to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the vacuum suction cup pumping device of the present invention, which can be used both electrically and manually.

[0015] Figure 2 This is a schematic diagram of the disc body portion of the vacuum suction cup extraction device of the present invention.

[0016] Figure 3 This is an exploded view of the disc body portion of the vacuum suction cup extraction device of the present invention.

[0017] Figure 4 This is a cross-sectional view of the disc body portion of the vacuum suction cup extraction device of the present invention.

[0018] Figure 5 This is a schematic diagram of the air extraction part of the vacuum suction cup air extraction device of the present invention.

[0019] Figure 6 This is an exploded view of the air extraction section of the vacuum suction cup extraction device of the present invention.

[0020] Figure 7 This is a cross-sectional view of the air extraction part of the vacuum suction cup air extraction device of the present invention.

[0021] Figure 8 This is a circuit board structure diagram of the air extraction section of the present invention.

[0022] Figure 9 This is a structural diagram of the pressure claw in the air extraction section of this invention.

[0023] Figure 10 This is an assembly diagram of the circuit board and pressure claws of the present invention.

[0024] Figure 11 This is an assembly diagram of the circuit board, pressure claws, and housing of the present invention.

[0025] Figure 12 This is a cross-sectional view of the structural principle of the air extraction part of the present invention.

[0026] Figure 13 This is a structural diagram of the vacuum pump of the present invention.

[0027] Figure 14 This is a structural diagram of the sealing ring of the present invention.

[0028] Figure 15 This is a bottom view of the disc body of the present invention.

[0029] The attached diagram is labeled as follows: 1. Rear cover; 2. Pressure claw; 3. Circuit board; 4. Battery; 5. Electrode spring; 6. Button; 7. Housing; 8. Vacuum pump; 9. Wool loop; 10. Sealing ring; 11. Cover plate; 12. Screw; 13. Snap ring; 14. Rubber valve; 15. Handle; 16. Connecting seat; 17. Pressure release button; 18. Chassis; 21. Rubber plug; 22. Lever pin; 1-1. Boss; 19. Working chamber; 2-1. Arc surface; 2-2. Buckle; Extension. Part 2-3, Clamping surface 2-4, Claw gripper 2-5, Switch 3-1, Outer circular surface 3-2, USB charging port 3-3, Slot 7-1, Air extraction gripping area 7-2, Air intake 8-1, Screw post 8-4, Screw hole 8-3, Air extraction column 8-5, Sealing surface 10-1, Annular sealing lip 10-2, Sealing lip edge 18-1, Radial connecting rib 18-2, Workpiece A, Disc body part B, Air extraction part C. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific implementation examples.

[0031] This invention discloses a dual-use electric and manual air extraction device, comprising a housing 7, a power supply, a vacuum pump 8, and control components. The housing 7 is the main body of the air extraction device and is divided into an inner end and an outer end. The inner end of the housing 7 is located within a working chamber 19, and the outer end of the housing 7 is provided with an air extraction grip area. A sealing component is provided at the front end of the air extraction device, and the sealing component is in a sealed fit with the working chamber 19 that houses the air extraction device. The vacuum pump 8 is provided with an air intake port 8-1, which connects to the sealed cavity of the working chamber 19 at the front end of the air extraction device. The sealing component has a structure that adapts to the air extraction device in a sliding and pulling state within the working chamber 19 for sealing.

[0032] The sealing component is a sealing ring, and the sealing surface 10-1 of the sealing ring has a conical structure. When manually evacuating air, the sealing surface extends outward and retracts inward when venting air.

[0033] A vacuum pump 8 is provided at the front of the housing 7. An air intake port 8-1 is provided at the front end of the vacuum pump 8. The sealing component includes a sealing ring 10, and the sealing ring has an opening that seals with the air intake port 8-1.

[0034] The sealing ring is connected to the vacuum pump by screws. The screws are installed on the screw post 8-4 at the front end of the vacuum pump. The screw post 8-4 is provided with screw holes 8-3 that mate with the screws. The sealing ring is provided with an opening that seals with the screw post 8-4. The sealing ring is installed on the vacuum pump 8 through the cover plate 11 on the other side and the screw 12.

[0035] The sealing ring has two openings, each with an annular sealing lip 10-2. The annular sealing lip engages with the screw post 8-4 and the suction column 8-5 on the vacuum pump for sealing. The suction port 8-1 is located inside the suction column 8-5. An exhaust port 8-2 is located on the side of the vacuum pump 8 at the other end of the sealing ring. A wool ring 9 is also placed between the sealing ring and the vacuum pump. When the pumping device is electrically operated, the vacuum pump 8 draws air from the suction cup through the suction port 8-1 and discharges it through the exhaust port 8-2 to the unsealed part of the working chamber 19, thus completing the electric operation of the pumping section.

[0036] The housing 7 is equipped with a button 6 for controlling the start and stop of the vacuum pump 8. The power supply is located at the rear of the housing 7. The power supply is a battery compartment, which is assembled to the rear cover 1 by threads.

[0037] The battery compartment contains, in sequence, an electrode spring plate 5, a battery 4, a circuit board 3, and a pressure claw 2. The pressure claw 2 is located next to the rear cover 1. The control components are the circuit board 3 and a button 6 connected to the circuit board 3.

[0038] The charging port is integrated on the circuit board 3. The USB charging port 3-3 and the switch 3-1 are arranged radially symmetrically, with a flat shape and LED indicators for working and charging.

[0039] A vacuum suction cup that can be used both electrically and manually consists of an air extraction part and a cup body. The air extraction part is the aforementioned air extraction device. The suction cup part consists of a base 18 and a handle 15 for gripping, which is located above the base 18. A working chamber 19 is provided inside the handle 15. The working chamber 19 is a cylindrical cavity. The handle 15 is supported on the base 18 by two pillars. The suction cup part is also provided with a pipe connecting the working chamber 19 and the bottom of the base 18. An additional pressure relief mechanism is provided to release the suction cup from the suction state.

[0040] The main body of the pipeline is a connecting seat 16, which connects the cavity inside the chassis 18 and the handle 15. The handle 15 is connected to the chassis 8 by screws. One end of the handle is provided with a connecting seat 16 that communicates with the bottom of the chassis 18. A pipeline is provided inside the connecting seat 16. The pipeline communicates with the bottom of the chassis 18 through a connecting hole on the chassis 18. The connecting seat 16 is connected to one end of the handle 15 by screws. The end of the handle 15 that connects to the connecting seat 16 and the mounting post of the chassis are hollow structures, which accommodate the connecting seat 16. One end of the pipeline on the connecting seat 16 is connected to the connecting hole on the chassis 18, and the other end is connected to the vent hole inside the handle 15.

[0041] The handle 15 end of the connecting seat 16 and the outer side of the mounting post of the chassis have a pressure release button mounting port. The pressure release button 17 is mounted on the mounting post through the lever pin 22. The lever pin 22 passes through the middle of the pressure release button 17. The pressure release button 17 has a pressing position on one side of the lever pin 22, and a rubber plug 21 is provided on the other side adjacent to the connecting seat 16. The rubber plug 21 cooperates with the pressure release hole provided on the connecting seat 16.

[0042] The connecting hole on the chassis 18 extends through the upper and lower ends of the chassis. Three sealing lips 18-1 are provided below the chassis 18, and several radial connecting ribs 18-2 are provided. The radial connecting ribs 18-2 are evenly distributed in a ring and are slightly lower than the sealing lips 18-1.

[0043] The handle 15 has a cylindrical interior, with one end open and the other end closed except for a vent hole (hereinafter referred to as the closed end). A rubber valve 14 is located on the inside of the closed end, tightly against the vent hole, and is fixed by a retaining spring 13. The rubber valve 14 allows air from the chassis 18 to enter the cavity inside the handle 15, but does not allow air from the cavity inside the handle 15 to enter the chassis 18, i.e., it has a one-way function.

[0044] The present invention provides a vacuum suction cup that can be used both electrically and manually. It consists of an air extraction part and a plate body, and has both electric and manual operation modes. The air extraction part is specifically composed of a back cover 1, a pressure claw 2, a circuit board 3, a battery 4, an electrode spring plate 5, a button 6, a housing 7, a vacuum pump 8, a wool ring 9, a sealing ring 10, a cover plate 11, and screws 12.

[0045] The main body of the suction section is the casing 7, with a vacuum pump at the front and a power supply at the rear. The vacuum pump 8 has an air intake 8-1 at its front end, connected to a sealing component. The sealing component includes a sealing ring 10, which has an opening for sealing with the air intake 8-1. The sealing ring is connected to the vacuum pump by screws mounted on screw posts 8-4 at the front end of the vacuum pump. Screw posts 8-4 have screw holes 8-3 for screw engagement. The sealing ring has an opening for sealing with the screw posts 8-4. The sealing ring is mounted on the vacuum pump 8 via a cover plate 11 on the other side and screws 12. A wool ring 9 can also be placed between the sealing ring and the vacuum pump to prevent dust from entering and adhering to the sealing ring 10, affecting the sealing effect. Additionally, the suction cup is coated with lubricating oil, and the wool ring 9 can adhere the lubricating oil to itself, thus maintaining lubrication.

[0046] The sealing surface 10-1 of the sealing ring has a conical structure, which has the characteristics of extending outward when manually pumping air and contracting inward when venting air. The two openings are provided with annular sealing lips 10-2, which contact the screw post 8-4 and suction post 8-5 on the vacuum pump to increase the sealing effect.

[0047] The sealing surface 10-1 of this suction cup sealing ring has a conical structure and a thin-walled structure, allowing it to expand and contract freely. During manual operation, when the suction section is pulled outwards, the sealing ring 10 moves to the right, increasing the space in the working chamber 19 and creating negative pressure. Due to this negative pressure, the conical sealing surface 10-1 of the sealing ring expands outwards, increasing its outer diameter to prevent air leakage. Simultaneously, air between the chassis and the workpiece is drawn into the working chamber 19. When the suction section is pushed inwards, the sealing ring 10 moves to the left, decreasing the space in the working chamber 19 and creating positive pressure. Due to this positive pressure, the conical sealing surface 10-1 of the sealing ring contracts inwards, decreasing its outer diameter to expel the air from the working chamber 19. Repeating this process several times allows the air between the chassis and the workpiece to be drawn out, creating a high negative pressure and completing the manual operation of the suction section.

[0048] The charging port is integrated on the circuit board 3. The USB charging port 3-3 and the switch 3-1 are arranged radially symmetrically and are flat in shape, which shortens the height of the circuit board. The charging cable and charging head are compatible with USB mobile phone charging cables and charging heads on the market, with high compatibility, and are equipped with working and charging LED indicators.

[0049] The circuit board is secured using pressure claw 2. The arc surface 2-1 of the pressure claw fits tightly with the outer circular surface 3-2 of the circuit board. During assembly, the pressure claw handle 2-5 is pinched to engage the outer circular surface 3-2 of the circuit board with the arc surface 2-1 on the pressure claw, thus assembling it into a single unit. The assembled unit is then pressed into the housing. When inserted into the housing, the clip 2-2 on the pressure claw automatically engages with the slot 7-1 on the housing, fixing the position of the circuit board. The rear cover 1 is then screwed into the housing and tightened. The protrusion 1-1 on the rear cover contacts the pressing surface 2-4 on the pressure claw, thus pressing the circuit board firmly. To remove the circuit board, after unscrewing the rear cover, the extension 2-3 on the pressure claw can be pinched. At this time, the clip 2-2 disengages from the slot 7-1, allowing the circuit board to be easily removed. The operation is simple and convenient.

[0050] The pressure relief mechanism is a rubber valve 14 and its control mechanism installed on the pressure relief hole of the connecting seat 16.

[0051] The disc body mainly consists of a retaining ring 13, a rubber valve 14, a handle 15, a connecting seat 16, a pressure release button 17, a base 18, a rubber plug 21, and a lever pin 22. The connecting seat 16 connects the cavities inside the base 18 and the handle 15. The rubber valve 14 allows air from the base 18 to enter the cavity inside the handle 15, but does not allow air from the cavity inside the handle 15 to enter the base 18, thus providing unidirectional airflow.

[0052] Insert the suction part into the handle 15 of the plate body to form a complete suction cup product.

[0053] When the pressure release button 17 is pressed, the rubber plug 21 supporting the lever pin 22 separates from the pressure release hole on the connecting seat 16, releasing the closed state of the pipeline of the connecting seat 16, allowing air to enter the bottom of the chassis 18, and releasing the suction cup adsorption state. When the pressure release button 17 is released, due to the action of the spring, the rubber plug 21 returns to its original position, blocking the pressure release hole on the connecting seat 16, thus closing the pipeline of the connecting seat 16. The connecting seat 16 connects the cavity inside the chassis 18 and the handle 15.

[0054] The connecting hole on the chassis 18 extends through the upper and lower ends of the chassis. Three sealing lips 18-1 are provided below the chassis 18, and several radial connecting ribs 18-2 are also provided. The radial connecting ribs 18-2 are evenly distributed in a ring and are slightly lower than the sealing lips 18-1. The function of the radial connecting ribs 18-2 is to divide the sealing lips 18-1 into several small cavities in the circumferential direction, so as to avoid the leakage failure of the entire lip due to local damage to the sealing lips 18-1.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-purpose (electric and manual) vacuum pump, comprising a housing, a power supply, a vacuum pump, and control components, wherein the housing is the main body of the vacuum pump, and the housing is divided into an inner end and an outer end, the inner end of the housing being disposed within a working chamber accommodating the vacuum pump, and the outer end of the housing being provided with a vacuum gripping area, characterized in that: The front end of the pumping device is equipped with a sealing component, which seals with the working chamber containing the pumping device. The vacuum pump has an intake port that connects to the sealed cavity of the working chamber at the front end of the pumping device. The sealing component has a structure that adapts to the sliding and pulling state of the pumping device within the working chamber. The sealing component is a sealing ring with a conical sealing surface. During manual pumping, the sealing surface extends outward, and during exhaust, it retracts inward. The vacuum pump is located at the front of the housing, with an intake port at its front end. The sealing component contains a sealing ring with an opening that seals with the intake port. The sealing ring has two openings with annular sealing lips that seal with the screw post and intake column on the vacuum pump. The intake port is located inside the intake column, and the exhaust port is located on the side of the vacuum pump at the other end of the sealing ring. A wool ring is also provided between the sealing ring and the vacuum pump. The housing has a button to control the start and stop of the vacuum pump, and a power supply is located at the rear of the housing.

2. The dual-purpose electric and manual air extraction device according to claim 1, characterized in that: The sealing ring is connected to the vacuum pump by screws. The screws are installed on the screw post at the front end of the vacuum pump. The screw post has screw holes that mate with the screws. The sealing ring has an opening that seals with the screw post. The sealing ring is installed on the vacuum pump through a cover plate on the other side and screws.

3. The dual-purpose electric and manual air extraction device according to claim 2, characterized in that: The power source is a battery compartment, which is assembled to the back cover by threads. Inside the battery compartment, there are electrode spring plates, a battery, a circuit board, and pressure claws arranged in sequence. The pressure claws are adjacent to the back cover. The control components are a circuit board and buttons connected to the circuit board.

4. A vacuum suction cup that can be used both electrically and manually, comprising a vacuuming section and a cup body, characterized in that: The air extraction part is the air extraction device described in any one of claims 1-3. The disc part consists of a base and a handle for holding, which is set above the base. The handle is provided with a working chamber for accommodating the air extraction device. The working chamber is a cylindrical cavity. The handle is supported on the base by two pillars. The disc part is also provided with a pipe connecting the working chamber and the bottom of the base.

5. A vacuum suction cup that can be used both electrically and manually according to claim 4, characterized in that: It is also equipped with a pressure relief mechanism to release the suction cup from the suction state.

6. A vacuum suction cup that can be used both electrically and manually according to claim 4 or 5, characterized in that: The handle is open at one end and closed at the other end except for the vent hole. A rubber valve is installed on the inside of the closed end, which is close to the vent hole. The rubber valve is fixed by a snap ring and is one-way. The main body of the pipeline is a connecting seat, which connects the cavity inside the chassis and the handle.

7. A vacuum suction cup that can be used both electrically and manually according to claim 6, characterized in that: The handle is connected to the chassis by screws. One end of the handle is provided with a connecting seat that communicates with the bottom of the chassis. A pipe is provided inside the connecting seat. The pipe communicates with the bottom of the chassis through a connecting hole on the chassis. The connecting seat is connected to one end of the handle by screws. The mounting post connecting the handle end to the connecting seat and the chassis is a hollow structure that accommodates the connecting seat. One end of the pipe on the connecting seat is connected to the connecting hole on the chassis, and the other end is connected to the vent hole inside the handle.

8. A vacuum suction cup that can be used both electrically and manually according to claim 7, characterized in that: The handle end of the connecting seat and the outer side of the mounting post of the chassis have a pressure release button mounting port. The pressure release button is mounted on the mounting post by a lever pin. The lever pin passes through the middle of the pressure release button. The pressure release button has a pressing position on one side of the lever pin, and a rubber plug is set on the other side close to the connecting seat. The rubber plug mates with the pressure release hole on the connecting seat.

Images