Vacuum chuck based on buckle type rubber structure

Abstract

The utility model discloses a vacuum chuck based on a buckle type rubber structure, which comprises a chuck framework (1), a handle (2) and a rubber (3) which are mutually connected, 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 way through a clamping part (301), and the middle part of the rubber (3) is provided with a support frame (5) positioned in the clamping groove (101). According to the utility model, the rubber sheet can be independently replaced while the stable installation of the rubber sheet is ensured, and an operator can conveniently disassemble and assemble the battery.

Description

Technical Field

[0001] The utility model 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 air pumping cavity between the base and the adsorbed object is depressurized, thereby destroying the negative pressure vacuum state in the air pumping cavity, 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. However, since the sealing stability of the rubber will be affected by bumps, deformation and other problems during long-term use, users need to replace the rubber together with the suction cup frame during maintenance, which increases the replacement cost of the rubber.

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

[0004] Secondly, the existing method of installing batteries on electric suction cups involves securing the battery box inside the handle of the electric suction cup and installing a snap-on cover on the outside of the battery box. During installation, the operator must first remove the cover, insert the battery into the battery box, and then re-close the cover to complete the installation. This method undoubtedly increases the operator's difficulty and can easily cause the cover to loosen or be lost after long-term use.

[0005] Therefore, the existing electric suction cup cannot achieve the separate replacement of the rubber while ensuring the stable installation of the rubber, and there is also the problem of inconvenience in disassembling and assembling the battery. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum suction cup based on a snap-on rubber structure, which can ensure the stable installation of the rubber while realizing the individual replacement of the rubber and facilitates the disassembly and assembly of the battery by the operator.

[0007] The technical solution of the utility model 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, wherein snap-on grooves are provided around the bottom of the suction cup frame, and the rubber is snap-on connected to the snap-on grooves via snap-on parts around the rubber, and a support frame located in the snap-on groove is provided in the middle of the rubber.

[0008] In the aforementioned vacuum suction cup based on a 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 a 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 locking portion in the vertical direction. The lip is located below the rib and is spaced apart from the rib in the upper and lower directions.

[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 a 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, and 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, and the two sides of the exhaust channel are respectively connected with the third air vent and the fourth air vent. 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 vent are both buckled and connected with dustproof sheets.

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

[0013] In the aforementioned vacuum suction cup based on a snap-on rubber structure, a cover plate that is rotatably connected to the handle is provided at the outer end of the battery box, and the end of the cover plate extends to the inner side of the handle to form a hook. The outside of the hook is snap-connected with a power-taking button, and 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 a 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 cavity, and the air pump, the pressure relief assembly and the air suction cavity are connected to each other; the pressure relief assembly includes 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 cavity, and a pressure relief button is provided on the outside of the exhaust port, the middle part of the pressure relief button is a rotating handle, one end of the pressure relief button is provided with a plug that matches the exhaust port, and the other end of the pressure relief button is provided with a pressing part for controlling the rotation of the pressure relief button.

[0015] In the aforementioned vacuum suction cup based on a snap-on rubber structure, an opening that matches the pressing part is provided on the side wall of the handle, the outer end of the pressing part and the opening are engaged with each other, 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 features:

[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 snap-fitting of the snap-fitting groove and the snap-fitting portion during installation. On the one hand, a labyrinth groove structure is formed between the rubber and the suction cup frame, thereby improving the sealing effect of the connection between the two. On the other hand, the support frame and the snap-fitting groove can be used to rigidly limit the snap-fitting portion 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 due to 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 exhaust channel, the air in the exhaust cavity can be discharged outward through the third air vent, the exhaust channel and the fourth air vent in sequence during suction, and then the exhaust channel can suck the inner end face of the rubber under negative pressure, thus ensuring the installation stability and sealing effect of the rubber when in use; 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 tightly 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 locking limit of the cover plate. The battery box can then push the cover plate open and pop out under the rebound action of the elastic power extraction part, thereby facilitating the operator's disassembly, installation and replacement of the battery box;

[0022] (5) By defining the structure of the pressure relief assembly, on the one hand, the pressure relief function can be achieved by controlling the plug to be closed or away from the exhaust port by pressing the pressure relief button; on the other hand, the pressure relief button can be formed into 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) By providing an opening on the side wall of the handle to match the pressure relief button, 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 achieving a seal on 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 utility model 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 It is a structural diagram 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 an outline diagram of Example 1;

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

[0032] Figure 8 It is an outline diagram of Example 2;

[0033] Figure 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-air pump, 7-battery box, 8-power board, 9-power socket, 10-elastic power supply part, 11-cover, 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-rib, 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 will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0036] Example 1. A vacuum suction cup based on a snap-on rubber structure, comprising: 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 is molded on the outside of the support frame 5, 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 to the snap-fitting groove 101 via a 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, and 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 an annular rib 102 , the lower end of which is vertically located below the bottom surface of the engaging portion 301 , 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-taking component, and the power-taking component includes a battery box 7 that is snap-fitted to the handle 2. The lower end of the battery box 7 is provided with a power board 8. The outer side of the power board 8 is provided with a power socket 9 fixedly connected to the handle 2. One end of the power socket 9 is fitted with the power board 8 via an elastic power-taking portion 10. The elastic power-taking portion 10 is a battery spring, and the other end of the power socket 9 is electrically connected to the air pump 6. The battery box 7 is a split structure and is snap-fitted into shape. The battery and the power board 8 are snap-fitted and connected in the battery box 7, and the lower end of the battery after snapping is electrically connected to the power board 8.

[0041] The outer end of the battery box 7 is provided with a cover 11 that is rotatably connected to the handle 2. The end of the cover 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 on the cover 11 after being pressed, and the elastic power-taking part 10 is used to apply outward pressure to the battery box 7 after the cover 11 is released from the limit, so that the battery box 7 pushes open the cover 11 and pops out.

[0042] The handle 2 is respectively provided with an air pump 6 and a pressure relief assembly, 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 connected to each other; the pressure relief assembly includes an air inlet and outlet pipe 15, and the air inlet and outlet pipes 15 are respectively provided with a first air vent 151, a second air vent 152 and an exhaust port 153. The outside of the first air vent 151 is connected to the air pump 6 via a hose, and the outside of the second air vent 152 is buckled and connected to the suction cup frame 1 and is connected to the air suction chamber 14. 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 cooperates with 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 part 161 for controlling the rotation of the pressure relief button 16.

[0043] An opening 201 that cooperates with 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 interlocked and sealed. 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, thereby realizing 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 are interlocked and close the opening 201.

[0045] The outside of the air inlet and outlet pipes 15 is connected to an air pressure sensor 19 with a display function through the third exhaust port 154 . The display 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] A third vent 304 communicating with the second vent 152 is provided in the middle of the rubber 3 , and a dustproof sheet 20 is fastened and connected to the middle of the third vent 304 .

[0047] Working principle of the present utility model: When using the present utility model, 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 the vacuum pump 6 is turned on to extract the air in the vacuum chamber 14 to achieve the adsorption effect. When the vacuum chamber 14 is in a negative vacuum state, the lip 302 is folded downward under the action of air pressure and adheres to the surface of the object, thereby improving its sealing effect; at the same time, the plug 17 is tightly 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 sealed, ensuring the vacuum pump 6's vacuum effect on the vacuum chamber 14.

[0048] When the vacuum suction cup completes the carrying 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 it rotates, and at the same time, the pressing part 161 is separated from the opening 201 as it rotates, so that the external air can pass through the opening 201, the exhaust port 153, the inlet and outlet pipes 15 and the third vent 304 in sequence into the vacuum chamber, thereby achieving a pressure relief effect.

[0049] When the battery box 7 in the handle 2 needs to be removed, the operator presses the power button 12, which bends inward and releases the locking limit on the cover 11. After the limit of the cover 11 is released, the resilience of the elastic power extraction portion 10 will drive the battery box 7 to push the cover 11 open and pop out, thereby facilitating the operator to remove the battery box 7. Similarly, when the battery box 7 needs to be installed, the operator only needs to insert the battery box 7 into the handle 2 and then flip the cover 11 to the locking position. After the cover 11 is locked, it can be rigidly locked to the battery box 7, ensuring the stable fit between the power connection plate 8 and the elastic power extraction portion 10, ensuring the stability of their electrical connection.

[0050] Example 2. A vacuum suction cup based on a snap-on rubber structure, comprising: 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-fit ​​groove 101. The rubber 3 is snap-fitted to the snap-fit ​​groove 101 via a snap-fit ​​portion 301 on all sides. The middle of the rubber 3 is provided with a support frame 5 located in the snap-fit ​​groove 101. The support frame 5 is made of a rigid material and the rubber 3 is made of rubber and is 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, and 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 an annular rib 102 , the lower end of which is vertically located below the bottom surface of the engaging portion 301 , 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 a dustproof sheet 20.

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

[0055] The outer end of the battery box 7 is provided with a cover 11 that is rotatably connected to the handle 2. The end of the cover 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 on the cover 11 after being pressed, and the elastic power-taking part 10 is used to apply outward pressure to the battery box 7 after the cover 11 is released from the limit, so that the battery box 7 pushes open the cover 11 and pops out.

[0056] The handle 2 is respectively provided with an air pump 6 and a pressure relief assembly, 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 connected to each other; the pressure relief assembly includes an air inlet and outlet pipe 15, and the air inlet and outlet pipes 15 are respectively provided with a first air vent 151, a second air vent 152 and an exhaust port 153. The outside of the first air vent 151 is connected to the air pump 6 via a hose, and the outside of the second air vent 152 is buckled and connected to the suction cup frame 1 and is connected to the air suction chamber 14. 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 cooperates with 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 part 161 for controlling the rotation of the pressure relief button 16.

[0057] An opening 201 that cooperates with 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 interlocked and sealed. 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, thereby realizing 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 are interlocked and close the opening 201.

[0059] The outside of the air inlet and outlet pipes 15 is connected to an air pressure sensor 19 with a display function through the third exhaust port 154 . The display 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 to Example 1, this embodiment removes the screw 4 between the rubber 3 and the suction cup frame 1. Furthermore, through the coordination of the third vent 304, the fourth vent 103, and the air extraction channel 104, the vacuum suction cup can sequentially extract the gas within the air extraction chamber 14 through the third vent 304, the air extraction channel 104, and the fourth vent 103 during suction. After suction, the air extraction channel 104, along with the air extraction chamber 14, is placed in a negative pressure state, which in turn causes the suction cup frame 1 and the rubber 3 on both sides of the air extraction channel 104 to engage with each other, thereby improving the stability of the rubber 3 in this state and preventing the rubber 3 from shifting or falling off during handling.

[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. A vacuum suction cup based on a snap-on rubber structure, characterized in that: 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) on all sides. The rubber (3) is snap-fitted to the snap-fitting groove (101) via a snap-fitting portion (301) on all sides. 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, and 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 outside 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 engaging portion (301) in the vertical direction, and the lip (302) is located below the rib (102) and is spaced apart from the rib (102).

4. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: The sucker 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 sucker 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 air extraction channel (104) being distributed at the bottom of the suction cup frame (1), the two sides of the air extraction channel (104) being respectively communicated with the third vent (304) and the fourth vent (103), the air extraction 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; the middle parts of the third vent (304) and the fourth vent (103) are both buckled and connected with dustproof sheets (20).

6. The vacuum suction cup based on the snap-on rubber structure according to claim 1, characterized in that: An air pump (6) and a power supply assembly are respectively provided in the handle (2). The power supply assembly comprises a battery box (7) which is snap-fitted to the handle (2). A power board (8) is provided at the lower end of the battery box (7). An electric socket (9) which is fixedly connected to the handle (2) is provided on the outer side of the power board (8). One end of the electric socket (9) is fitted with the power board (8) via an elastic power supply portion (10), and the other end of the electric socket (9) is 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) that 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 outer side of the hook (111) is buckled and connected to a power button (12). The power button (12) is buckled and connected to the handle (2) at an end away from the hook (111). The inner side of the power button (12) is connected to the handle (2) via a first elastic member (13).

8. The vacuum suction cup based on a snap-on rubber structure according to claim 1, characterized in that: 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 cavity (14); the air pump (6), the pressure relief assembly and the air suction cavity (14) are communicated with each other; 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 provided 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 cavity (14); 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); one end of the pressure relief button (16) is provided with a plug (17) that matches 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 interlocked, 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 for gas circulation is formed between the pressing portion (161) and the opening (201).

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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