Vacuum chuck based on buckle type rubber structure

Abstract

The invention discloses a vacuum chuck based on a buckle type rubber structure, the vacuum chuck comprises a chuck framework (1), a handle (2) and a rubber (3) which are connected with one another, the periphery of the bottom of the chuck framework (1) is provided with a clamping groove (101), the periphery of the rubber (3) is connected with the clamping groove (101) in a buckling mode through a clamping part (301), and the middle of the rubber (3) is provided with a supporting frame (5) located in the clamping groove (101). According to the invention, the rubber sheet can be independently replaced while stable installation of the rubber sheet is ensured, and an operator can conveniently disassemble and assemble a battery.

Description

Technical Field

[0001] The invention relates to a vacuum suction cup, in particular to a vacuum suction cup based on a snap-on rubber structure. Background Art

[0002] The electric suction cup is a commonly used handling tool. The rubber on the bottom of the suction cup is attached to the adsorbed object, and then the air between the base and the adsorbed object is extracted, thereby forming a vacuum with the help of the sealing effect, so that it is tightly adsorbed to the adsorbed object and the handling effect is achieved. When the electric suction cup completes the handling action, the vacuum chamber between the base and the adsorbed object is depressurized, thereby destroying the negative pressure vacuum state in the vacuum chamber, so that the suction cup base can be freely separated from the adsorbed object. On this basis, the traditional vacuum suction cup installation method for the rubber is to fix the rubber directly to the bottom of the frame, but because the sealing stability of the rubber will be affected by bumps, deformation and other problems during long-term use, the user needs to replace the rubber together with the suction cup frame during maintenance, thereby increasing the replacement cost of the rubber.

[0003] To address this problem, some manufacturers currently install the rubber by buckling it with the suction cup frame, but this installation method is only applicable to rubber structures made of hard rubber. Rubber made of soft rubber will curl and deform and loosen and peel due to excessive force after buckling, which means that it cannot ensure stable buckling with the suction cup frame. The disadvantage of hard rubber compared to soft rubber is that, due to the relatively weak deformation ability of hard rubber, it is easy to form gaps at the joint when adsorbing uneven surfaces, which affects the sealing performance of the rubber and the handling stability of the electric suction cup.

[0004] Secondly, the existing electric suction cup installation method for the battery is to fix the battery box in the handle of the electric suction cup and set a snap-on cover on the outside of the battery box; during operation, the operator needs to first release and remove the cover, then insert the battery into the battery box, and finally close the cover to complete the installation. This method will undoubtedly increase the difficulty of the operator's operation and easily cause the cover to loosen and be lost after long-term use.

[0005] Therefore, the existing electric suction cup cannot realize the separate replacement of the rubber while ensuring the stable installation of the rubber, and there is also the problem of inconvenient battery disassembly and assembly. Summary of the invention

[0006] The purpose of the present invention is to provide a vacuum suction cup based on a snap-on rubber structure, which can realize the separate replacement of the rubber while ensuring the stable installation of the rubber, and facilitate the disassembly and assembly of the battery by the operator.

[0007] The technical solution of the present invention is a vacuum suction cup based on a snap-on rubber structure, comprising a suction cup frame, a handle and a rubber that are connected to each other. The bottom of the suction cup frame is provided with snap-on grooves around it, and the rubber is snap-on connected to the snap-on grooves around it via snap-on parts. A support frame is provided in the middle of the rubber and is located in the snap-on groove.

[0008] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an annular lip is provided around the bottom of the rubber, and the upper end of the lip forms a deformation groove with a long strip cross-section. The upper end of the deformation groove extends to the inner side of the snap-fit ​​groove, and the lower end of the deformation groove is located on the outer side of the snap-fit ​​groove.

[0009] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an annular rib is formed around the suction cup frame, and the lower end of the rib is located below the bottom surface of the engaging portion in the vertical direction. The lip is located below the rib and is spaced apart from the rib.

[0010] In the aforementioned vacuum suction cup based on the snap-on rubber structure, the suction cup frame and the rubber are connected to each other via screws, and the ends of the screws pass through the support frame and are threadedly connected to the suction cup frame.

[0011] In the aforementioned vacuum suction cup based on the snap-on rubber structure, a third air vent and a fourth air vent for ventilation are respectively provided on the rubber and the suction cup frame, the third air vent and the fourth air vent are staggered with each other, an exhaust channel is distributed at the bottom of the suction cup frame, the two sides of the exhaust channel are respectively connected with the third air vent and the fourth air vent, and the exhaust channel is used to make the rubber close to the suction cup frame when the vacuum suction cup is sucking; the middle parts of the third air vent and the fourth air vent are both buckled and connected with dustproof sheets.

[0012] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an air pump and a power supply assembly are respectively provided in the handle, and the power supply assembly includes a battery box that is snap-fitted and connected to the handle, and a power connection board is provided at the lower end of the battery box. A power connection socket fixedly connected to the handle is provided on the outer side of the power connection board, and one end of the power connection socket is fitted with the power connection board via an elastic power supply portion, and the other end of the power connection socket is electrically connected to the air pump.

[0013] In the aforementioned vacuum suction cup based on the snap-on rubber structure, the outer end of the battery box is provided with a cover plate that is rotatably connected to the handle, the end of the cover plate extends to the inside of the handle and forms a hook, the outside of the hook is snap-connected with a power-taking button, the power-taking button is snap-connected to the handle at the end away from the hook, and the inner side of the power-taking button is connected to the handle via a first elastic member.

[0014] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an air pump and a pressure relief assembly are respectively provided in the handle, the bottom of the rubber is recessed inward to form an air suction chamber, and the air pump, the pressure relief assembly and the air suction chamber are interconnected; the pressure relief assembly comprises an air inlet and outlet pipe, and a first air vent, a second air vent and an exhaust port are respectively provided on the air inlet and outlet pipes, the outside of the first air vent is connected to the air pump, the outside of the second air vent is connected to the air suction chamber, a pressure relief button is provided on the outside of the exhaust port, a rotating handle is provided in the middle of the pressure relief button, a plug matching the exhaust port is provided at one end of the pressure relief button, and a pressing portion for controlling the rotation of the pressure relief button is provided at the other end of the pressure relief button.

[0015] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an opening matching the pressing part is provided on the side wall of the handle, the outer end of the pressing part is engaged with the opening, and the inner end of the pressing part is connected to the handle via a second elastic member; when the pressure relief button is in a pressed state, a gap for gas circulation is formed between the pressing part and the opening.

[0016] In the aforementioned vacuum suction cup based on the snap-on rubber structure, an air pressure sensor is connected to the outside of the air inlet and outlet pipes.

[0017] Compared with the prior art, the present invention has the following characteristics:

[0018] (1) The present invention defines the rubber connection structure so that it can be connected to the bottom of the suction cup frame through the cooperation and buckling of the snap-fit ​​groove and the snap-fit ​​part during installation, thereby forming a labyrinth groove structure between the rubber and the suction cup frame, that is, improving the sealing effect of the connection between the two; on the other hand, the support frame and the snap-fit ​​groove can be used to rigidly limit the snap-fit ​​part to prevent the rubber from peeling off;

[0019] (2) On the basis of the above, by screwing the support frame to the bottom of the suction cup frame, the support frame can squeeze and limit the external rubber after being fixed, so that the rubber cannot be separated from the suction cup frame by force deformation, thereby improving the installation stability and sealing effect of the rubber; by distributing the third air vent and the fourth air vent in a staggered manner and connecting them with each other through the suction channel, the air in the suction chamber can be discharged outward through the third air vent, the suction channel and the fourth air vent in sequence during suction, so that the suction channel can suck the inner end surface of the rubber under negative pressure, that is, ensure the installation stability and sealing effect of the rubber when it is used; and under the above cooperation, both rubber installation methods can achieve separate disassembly and assembly of the rubber while ensuring its installation stability;

[0020] (3) Through the structural coordination of the lip, deformation groove and retaining edge, on the one hand, the deformation ability of the lip can be improved, so that the lip can be folded down and closely attached to the surface of the object when the vacuum chamber is in a negative pressure state, thereby improving its sealing effect; on the other hand, when the operator presses the vacuum suction cup, the retaining edge can also be used to limit the lip, that is, to prevent the lip from sticking to the upper clamping part after being deformed by pressure and affecting the subsequent folding effect, thereby further improving the sealing effect of the rubber;

[0021] (4) By limiting the structure of the power extraction assembly, when the operator is installing or removing the battery box, he only needs to press the power extraction button to release the buckle limit of the cover plate, and the battery box can push the cover plate open and pop out under the rebound action of the elastic power extraction part, thereby facilitating the operator to disassemble and replace the battery box;

[0022] (5) By defining the structure of the pressure relief assembly, on the one hand, the pressure relief button can be pressed to control the plug to close or move away from the exhaust port, thereby realizing the pressure relief function; on the other hand, the pressure relief button can also form a lever structure, that is, the pressing force required to rotate the pressure relief button to open the plug is effectively reduced, thereby facilitating the user's operation;

[0023] (6) An opening for the pressure relief button is provided on the side wall of the handle, so that the pressure relief button can be engaged with the opening under the squeezing action of the second elastic member in the non-pressure relief state, thereby sealing the inner cavity of the handle and preventing external impurities from entering the handle and causing obstruction; and when the user presses the pressing portion to relieve pressure, a gap for gas to enter is formed between the pressing portion and the opening, thereby achieving a quick pressure relief function;

[0024] Therefore, the present invention can realize the separate replacement of the rubber while ensuring the stable installation of the rubber, and facilitates the disassembly and assembly of the battery by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of Example 1;

[0026] Figure 2 is a schematic diagram of the structure of the pressure relief assembly;

[0027] Figure 3 yes Figure 1 A-direction enlarged view;

[0028] Figure 4 yes Figure 1 B-direction enlarged view;

[0029] Figure 5 yes Figure 1 C-direction enlarged view;

[0030] Figure 6 It is the appearance diagram of embodiment 1;

[0031] Figure 7 is a schematic structural diagram of Example 2;

[0032] Figure 8 It is the appearance diagram of embodiment 2;

[0033] Fig. 9 It is the appearance diagram of Example 2 after removing the rubber.

[0034] The marks in the accompanying drawings are: 1-suction cup frame, 2-handle, 3-rubber, 4-screw, 5-support frame, 6-vacuum pump, 7-battery box, 8-power board, 9-power socket, 10-elastic power supply part, 11-cover plate, 12-power supply button, 13-first elastic member, 14-air suction chamber, 15-inlet and outlet pipes, 16-pressure relief button, 17-plug, 18-second elastic member, 19-air pressure sensor, 20-dustproof sheet, 101-clamping groove, 102-retaining edge, 103-fourth air vent, 104-air suction channel, 201-opening, 301-clamping part, 302-lip, 303-deformation groove, 304-third air vent, 111-hook, 151-first air vent, 152-second air vent, 153-exhaust port, 154-third exhaust port, 161-pressing part. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0036] Embodiment 1. A vacuum suction cup based on a snap-on rubber structure is constructed as follows Figure 1-6 As shown, it includes a suction cup frame 1 and a handle 2 connected to each other, a rubber 3 is provided at the bottom of the suction cup frame 1, the rubber 3 and the suction cup frame 1 are connected to each other via screws 4, a support frame 5 made of rigid material is provided in the middle of the rubber 3, the support frame 5 is annular in shape and the rubber 3 made of rubber material is molded on the outside of the support frame 5, and the end of the screw 4 passes through the support frame 5 and is threadedly connected to the suction cup frame 1.

[0037] The bottom of the suction cup frame 1 is provided with a snap-fitting groove 101 around it, and the rubber 3 is snap-fitted with the snap-fitting groove 101 via the snap-fitting portion 301 around it. The support frame 5 is located in the middle of the snap-fitting portion 301 and is arranged in the snap-fitting groove 101 together with the snap-fitting portion 301 .

[0038] The bottom of the rubber 3 is provided with an annular lip 302, the lower end of the lip 302 forms an inclined surface for fitting the surface of an object, the upper end of the lip 302 forms a deformation groove 303 with a long cross-section, the upper end of the deformation groove 303 extends to the inner side of the engaging groove 101, and the lower end of the deformation groove 303 is located on the outer side of the engaging groove 101.

[0039] The suction cup frame 1 is surrounded by a ring-shaped rib 102 , the lower end of which is located below the bottom surface of the engaging portion 301 in the vertical direction, and the lip 302 is located below the rib 102 and spaced apart from the rib 102 .

[0040] The handle 2 is respectively provided with an air pump 6 and a power supply assembly, and the power supply assembly includes a battery box 7 which is snap-fitted to the handle 2, and a power supply board 8 is provided at the lower end of the battery box 7. A power supply socket 9 which is fixedly connected to the handle 2 is provided at the outer side of the power supply board 8. One end of the power supply socket 9 is fitted with the power supply board 8 via an elastic power supply portion 10, and the elastic power supply portion 10 is a battery spring. The other end of the power supply socket 9 is electrically connected to the air pump 6. The battery box 7 is a split structure and is snap-fitted to each other. The battery and the power supply board 8 are snap-fitted to the battery box 7, and the lower end of the battery after snapping is electrically connected to the power supply board 8.

[0041] The outer end of the battery box 7 is provided with a cover plate 11 which is rotatably connected to the handle 2. The end of the cover plate 11 extends to the inner side of the handle 2 and forms a hook 111. The outside of the hook 111 is snap-fitted with a power-taking button 12. The power-taking button 12 is snap-fitted with the handle 2 at the end away from the hook 111. The inner side of the power-taking button 12 is connected to the handle 2 via a first elastic member 13, and the first elastic member 13 can be a compression spring. The power-taking button 12 is used to release the snap-fit ​​limit of the cover plate 11 after being pressed, and the elastic power-taking portion 10 is used to apply outward pressure to the battery box 7 after the cover plate 11 is released from the limit, so that the battery box 7 pushes open the cover plate 11 and pops out.

[0042] An air pump 6 and a pressure relief assembly are respectively provided in the handle 2, the bottom of the rubber 3 is recessed inward to form an air suction chamber 14, and the air pump 6, the pressure relief assembly and the air suction chamber 14 are interconnected; the pressure relief assembly includes an air inlet and outlet pipe 15, and a first air vent 151, a second air vent 152 and an exhaust port 153 are respectively provided on the air inlet and outlet pipes 15, the outside of the first air vent 151 is connected to the air pump 6 via a hose, the outside of the second air vent 152 is buckled and connected to the suction cup frame 1 and is interconnected with the air suction chamber 14, and a pressure relief button 16 is provided on the outside of the exhaust port 153, the middle part of the pressure relief button 16 rotates the handle 2, and one end of the pressure relief button 16 is provided with a plug 17 that matches the exhaust port 153, the plug 17 is made of flexible material and buckles with the pressure relief button 16, and the other end of the pressure relief button 16 is provided with a pressing portion 161 for controlling the rotation of the pressure relief button 16.

[0043] An opening 201 that matches the pressing portion 161 is provided on the side wall of the handle 2. The outer end of the pressing portion 161 is interlocked with the opening 201 to form a seal. The inner end of the pressing portion 161 is connected to the handle 2 via a second elastic member 18. The second elastic member 18 can be a compression spring. When the operator presses the pressing portion 161, the pressure relief button 16 rotates to drive the plug 17 to open, thereby releasing the blockage of the exhaust port 153, allowing the gas in the suction chamber 14 to be discharged outward from the exhaust port 153 of the inlet and outlet pipes 15, completing the pressure relief; when the operator releases the pressure, the second elastic member 18 rebounds to drive the pressure relief button 16 to rotate and reset, and the plug 17 re-blocks the exhaust port 153, so that the vacuum pump 6 can suck the gas in the suction chamber 14 through the inlet and outlet pipes 15 to achieve the suction function.

[0044] When the pressure relief button 16 is in a pressed state, a gap for gas circulation is formed between the pressing portion 161 and the opening 201, allowing external air to enter the air inlet and outlet pipes 15 through the gap; when the pressure relief button 16 is in a non-pressed state, the pressing portion 161 and the opening 201 interlock with each other and close the opening 201.

[0045] The outside of the air inlet and outlet pipe 15 is connected to an air pressure sensor 19 with a display function through the third exhaust port 154 . The display meter of the air pressure sensor 19 extends to the outer wall of the handle 2 and is used to display the air pressure value in the air extraction cavity 14 .

[0046] The rubber 3 is provided in the middle with a third vent 304 communicating with the second vent 152 , and the dustproof sheet 20 is buckled and connected to the middle of the third vent 304 .

[0047] Working principle of the present invention: When the present invention is used, the operator first places the vacuum suction cup on the surface of the object, and makes the bottom of the lip 302 fit with the adsorption surface of the object. Then turn on the vacuum pump 6 to extract the air in the vacuum chamber 14 to achieve the adsorption effect. When the vacuum chamber 14 is in a negative pressure vacuum state, the lip 302 is folded downward under the action of air pressure and closely adheres to the surface of the object, thereby improving its sealing effect; at the same time, the plug 17 is closely fitted with the exhaust port 153 under the cooperation of the second elastic member 18 and the vacuum pump 6, so that the exhaust port 153 remains in a sealed state, ensuring the vacuum pump 6's vacuum effect on the vacuum chamber 14.

[0048] When the vacuum suction cup completes the transporting action, the operator presses the pressure relief button 16. The operator presses the pressing part 161 to drive the pressure relief button 16 to rotate, so that the plug 17 is separated from the exhaust port 153 as the rotation occurs. At the same time, the pressing part 161 is separated from the opening 201 as the rotation occurs, so that the external air can pass through the opening 201, the exhaust port 153, the air inlet and outlet pipes 15 and the third vent 304 in sequence to enter the vacuum chamber, thereby achieving a pressure relief effect.

[0049] When it is necessary to disassemble the battery box 7 in the handle 2, the operator presses the power button 12, so that the power button 12 bends inward to release the buckle limit on the cover 11. After the limit of the cover 11 is released, the resilience of the elastic power-taking part 10 will drive the battery box 7 to push the cover 11 outward, thereby facilitating the operator to remove the battery box 7. Similarly, when it is necessary to install the battery box 7, the operator only needs to insert the battery box 7 into the handle 2, and then flip the cover 11 to the buckled position, so that the cover 11 can be hard-limited to the battery box 7 after buckling, that is, to ensure the stable fit between the power board 8 and the elastic power-taking part 10, and to ensure the stability of its electrical connection.

[0050] Embodiment 2. A vacuum suction cup based on a snap-on rubber structure is constructed as follows Figure 7-9 As shown, it includes a suction cup frame 1, a handle 2 and a rubber 3 that are interconnected. The bottom of the suction cup frame 1 is provided with a snap-fitting groove 101 around it. The rubber 3 is snap-fitted with the snap-fitting groove 101 via snap-fitting parts 301 around it. A support frame 5 located in the snap-fitting groove 101 is provided in the middle of the rubber 3. The support frame 5 is made of rigid material and the rubber 3 is rubber-encapsulated and molded on the outside of the support frame 5.

[0051] The bottom of the rubber 3 is provided with an annular lip 302, the lower end of the lip 302 forms an inclined surface for fitting the surface of an object, the upper end of the lip 302 forms a deformation groove 303 with a long cross-section, the upper end of the deformation groove 303 extends to the inner side of the engaging groove 101, and the lower end of the deformation groove 303 is located on the outer side of the engaging groove 101.

[0052] The suction cup frame 1 is surrounded by a ring-shaped rib 102 , the lower end of which is located below the bottom surface of the engaging portion 301 in the vertical direction, and the lip 302 is located below the rib 102 and spaced apart from the rib 102 .

[0053] The rubber 3 and the suction cup frame 1 are respectively provided with a third air vent 304 and a fourth air vent 103 for ventilation, and the third air vent 304 and the fourth air vent 103 are staggered with each other. An exhaust channel 104 is distributed at the bottom of the suction cup frame 1, and the two sides of the exhaust channel 104 are respectively connected with the third air vent 304 and the fourth air vent 103. The exhaust channel 104 is used to make the rubber 3 close to the suction cup frame 1 when the vacuum suction cup is sucking; the middle parts of the third air vent 304 and the fourth air vent 103 are both buckled and connected with dustproof sheets 20.

[0054] The handle 2 is respectively provided with an air pump 6 and a power supply assembly, and the power supply assembly includes a battery box 7 which is snap-fitted to the handle 2, and a power supply board 8 is provided at the lower end of the battery box 7. A power supply socket 9 which is fixedly connected to the handle 2 is provided at the outer side of the power supply board 8. One end of the power supply socket 9 is fitted with the power supply board 8 via an elastic power supply portion 10, and the elastic power supply portion 10 is a battery spring. The other end of the power supply socket 9 is electrically connected to the air pump 6. The battery box 7 is a split structure and is snap-fitted to each other. The battery and the power supply board 8 are snap-fitted to the battery box 7, and the lower end of the battery after snapping is electrically connected to the power supply board 8.

[0055] The outer end of the battery box 7 is provided with a cover plate 11 which is rotatably connected to the handle 2. The end of the cover plate 11 extends to the inner side of the handle 2 and forms a hook 111. The outside of the hook 111 is snap-fitted with a power-taking button 12. The power-taking button 12 is snap-fitted with the handle 2 at the end away from the hook 111. The inner side of the power-taking button 12 is connected to the handle 2 via a first elastic member 13, and the first elastic member 13 can be a compression spring. The power-taking button 12 is used to release the snap-fit ​​limit of the cover plate 11 after being pressed, and the elastic power-taking portion 10 is used to apply outward pressure to the battery box 7 after the cover plate 11 is released from the limit, so that the battery box 7 pushes open the cover plate 11 and pops out.

[0056] An air pump 6 and a pressure relief assembly are respectively provided in the handle 2, the bottom of the rubber 3 is recessed inward to form an air suction chamber 14, and the air pump 6, the pressure relief assembly and the air suction chamber 14 are interconnected; the pressure relief assembly includes an air inlet and outlet pipe 15, and a first air vent 151, a second air vent 152 and an exhaust port 153 are respectively provided on the air inlet and outlet pipes 15, the outside of the first air vent 151 is connected to the air pump 6 via a hose, the outside of the second air vent 152 is buckled and connected to the suction cup frame 1 and is interconnected with the air suction chamber 14, and a pressure relief button 16 is provided on the outside of the exhaust port 153, the middle part of the pressure relief button 16 rotates the handle 2, and one end of the pressure relief button 16 is provided with a plug 17 that matches the exhaust port 153, the plug 17 is made of flexible material and buckles with the pressure relief button 16, and the other end of the pressure relief button 16 is provided with a pressing portion 161 for controlling the rotation of the pressure relief button 16.

[0057] An opening 201 that matches the pressing portion 161 is provided on the side wall of the handle 2. The outer end of the pressing portion 161 is interlocked with the opening 201 to form a seal. The inner end of the pressing portion 161 is connected to the handle 2 via a second elastic member 18. The second elastic member 18 can be a compression spring. When the operator presses the pressing portion 161, the pressure relief button 16 rotates to drive the plug 17 to open, thereby releasing the blockage of the exhaust port 153, allowing the gas in the suction chamber 14 to be discharged outward from the exhaust port 153 of the inlet and outlet pipes 15, completing the pressure relief; when the operator releases the pressure, the second elastic member 18 rebounds to drive the pressure relief button 16 to rotate and reset, and the plug 17 re-blocks the exhaust port 153, so that the vacuum pump 6 can suck the gas in the suction chamber 14 through the inlet and outlet pipes 15 to achieve the suction function.

[0058] When the pressure relief button 16 is in a pressed state, a gap for gas circulation is formed between the pressing portion 161 and the opening 201, allowing external air to enter the air inlet and outlet pipes 15 through the gap; when the pressure relief button 16 is in a non-pressed state, the pressing portion 161 and the opening 201 interlock with each other and close the opening 201.

[0059] The outside of the air inlet and outlet pipe 15 is connected to an air pressure sensor 19 with a display function through the third exhaust port 154 . The display meter of the air pressure sensor 19 extends to the outer wall of the handle 2 and is used to display the air pressure value in the air extraction cavity 14 .

[0060] Compared with Example 1, the present embodiment removes the screw 4 between the rubber 3 and the suction cup frame 1, and through the cooperation of the third vent 304, the fourth vent 103 and the suction channel 104, the vacuum suction cup can sequentially extract the gas in the suction cavity 14 through the third vent 304, the suction channel 104 and the fourth vent 103 during suction. After being sucked, the suction channel 104 will be in a negative pressure state together with the suction cavity 14, and the suction cup frame 1 and the rubber 3 on both sides of the suction channel 104 will be sucked together, thereby improving the stability of the rubber 3 in this state and preventing the rubber 3 from deflecting or falling off during transportation.

[0061] On the other hand, through the structural coordination of the third vent 304, the fourth vent 103 and the dustproof sheet 20, the vacuum suction cup can also form a double-layer dustproof structure, further reducing the possibility of impurities entering the suction cup frame 1 or the handle 2 and causing blockage.

Claims

1. The vacuum suction cup based on the snap-on rubber structure is characterized by: The invention comprises a suction cup frame (1), a handle (2) and a rubber (3) which are connected to each other. The bottom of the suction cup frame (1) is provided with a snap-fitting groove (101) around the edges. The rubber (3) is snap-fitted with the snap-fitting groove (101) around the edges via a snap-fitting portion (301). The middle of the rubber (3) is provided with a support frame (5) located in the snap-fitting groove (101).

2. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: The bottom of the rubber (3) is provided with an annular lip (302) around its periphery, the upper end of the lip (302) forms a deformation groove (303) with a long strip cross-section, the upper end of the deformation groove (303) extends to the inner side of the engaging groove (101), and the lower end of the deformation groove (303) is located on the outer side of the engaging groove (101).

3. The vacuum suction cup based on the snap-on rubber structure according to claim 2, characterized in that: An annular rib (102) is formed around the suction cup frame (1), the lower end of the rib (102) is located below the bottom surface of the locking portion (301) in the vertical direction, and the lip (302) is located below the rib (102) and is spaced apart from the rib (102) in the upper and lower directions.

4. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: The suction cup frame (1) and the rubber (3) are connected to each other via screws (4), and the ends of the screws (4) pass through the support frame (5) and are threadedly connected to the suction cup frame (1).

5. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: The rubber (3) and the suction cup frame (1) are respectively provided with a third vent (304) and a fourth vent (103) for ventilation, the third vent (304) and the fourth vent (103) being offset from each other, an exhaust channel (104) being provided at the bottom of the suction cup frame (1), the two sides of the exhaust channel (104) being respectively connected to the third vent (304) and the fourth vent (103), the exhaust channel (104) being used to keep the rubber (3) in close contact with the suction cup frame (1) when the vacuum suction cup is sucking; dustproof sheets (20) are both buckled and connected in the middle of the third vent (304) and the fourth vent (103).

6. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: The handle (2) is provided with an air pump (6) and a power supply assembly, the power supply assembly comprising a battery box (7) which is buckled and connected to the handle (2), a power supply board (8) being provided at the lower end of the battery box (7), a power supply seat (9) fixedly connected to the handle (2) being provided on the outer side of the power supply board (8), one end of the power supply seat (9) being mutually attached to the power supply board (8) via an elastic power supply portion (10), and the other end of the power supply seat (9) being electrically connected to the air pump (6).

7. The vacuum suction cup based on the snap-on rubber structure according to claim 6, characterized in that: The outer end of the battery box (7) is provided with a cover plate (11) rotatably connected to the handle (2); the end of the cover plate (11) extends to the inner side of the handle (2) and forms a hook (111); the outer side of the hook (111) is buckled and connected to a power-taking button (12); the power-taking button (12) is buckled and connected to the handle (2) at an end away from the hook (111); and the inner side of the power-taking button (12) is connected to the handle (2) via a first elastic member (13).

8. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: An air pump (6) and a pressure relief assembly are respectively arranged in the handle (2); the bottom of the rubber (3) is recessed inwards to form an air suction chamber (14); the air pump (6), the pressure relief assembly and the air suction chamber (14) are interconnected; the pressure relief assembly comprises an air inlet and outlet pipe (15); a first air vent (151), a second air vent (152) and an exhaust port (153) are respectively arranged on the air inlet and outlet pipe (15); the outside of the first air vent (151) is connected to the air pump (6); the outside of the second air vent (152) is connected to the air suction chamber (14); a pressure relief button (16) is arranged on the outside of the exhaust port (153); the middle part of the pressure relief button (16) rotates the handle (2); one end of the pressure relief button (16) is provided with a plug (17) matching the exhaust port (153); the other end of the pressure relief button (16) is provided with a pressing portion (161) for controlling the rotation of the pressure relief button (16).

9. The vacuum suction cup based on the snap-on rubber structure according to claim 8, characterized in that: An opening (201) that matches the pressing portion (161) is provided on the side wall of the handle (2); the outer end of the pressing portion (161) and the opening (201) are mutually engaged, and the inner end of the pressing portion (161) is connected to the handle (2) via a second elastic member (18); when the pressure relief button (16) is in a pressed state, a gap is formed between the pressing portion (161) and the opening (201) for gas circulation.

10. The vacuum suction cup based on the snap-on rubber structure according to claim 8, characterized in that: The outside of the air inlet and outlet pipes (15) is connected to an air pressure sensor (19).

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