AU2019201598A1 - A portable water cup with tipping-preventing function - Google Patents

A portable water cup with tipping-preventing function Download PDF

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AU2019201598A1
AU2019201598A1 AU2019201598A AU2019201598A AU2019201598A1 AU 2019201598 A1 AU2019201598 A1 AU 2019201598A1 AU 2019201598 A AU2019201598 A AU 2019201598A AU 2019201598 A AU2019201598 A AU 2019201598A AU 2019201598 A1 AU2019201598 A1 AU 2019201598A1
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cavity
slider
adsorption
chutes
sliding blocks
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AU2019201598B2 (en
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Lei Wang
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Linhai Shengzhi Cup Industry Co Ltd
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Linhai Shengzhi Cup Industry Co Ltd
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Abstract

This invention discloses a portable water cup with tipping-preventing function, including a device body 11which is provided with a cavity 21 that opens upward, wherein the cavity 21 can be used for holding water, and the cavity 21 is internally provided with a lifting block 22 which is slidable, wherein the lifting block 22 is internally provided with an open groove 23 that opens upward, and first springs 52 are connected with and arranged between the lower end surface of the lifting block 22 and the lower inner wall of the cavity 21. The present invention aims at designing a cup which cannot be tipped even if the user accidentally touches the cup when it is placed on the table top. Biu 3 3'3 34 5 36 C 20 Figure I

Description

This invention discloses a portable water cup with tipping-preventing function, including a device body 11 which is provided with a cavity 21 that opens upward, wherein the cavity 21 can be used for holding water, and the cavity 21 is internally provided with a lifting block 22 which is slidable, wherein the lifting block 22 is internally provided with an open groove 23 that opens upward, and first springs 52 are connected with and arranged between the lower end surface of the lifting block 22 and the lower inner wall of the cavity 21. The present invention aims at designing a cup which cannot be tipped even if the user accidentally touches the cup when it is placed on the table top.
2019201598 07 Mar 2019
DRAWINGS
Figure AU2019201598A1_D0001
Figure 1
2019201598 07 Mar 2019
A PORTABLE WATER CUP WITH TIPPING-PRECENTING FUNCTION
TECHNICAL FIELD [0001] The invention relates to the technical field of living goods, in particular to a portable water cup with tipping-preventing function.
BACKGROUND OF THE INVENTION [0002] The water cup can be seen everywhere in the daily life, and people can use the water cup to hold liquid; however, the water cup is often overturned due to the fact that it is accidentally touched, and then the article on the desktop will be wetted, or the cup itself can be damaged when the water cup is dropped, and unnecessary loss is caused; therefore, the present invention aims at designing a cup which cannot be tipped even if the user accidentally touches the cup when it is placed on the table top.
BRIEF SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the invention is to provide a portable water cup with tipping-preventing function so as to overcome the problems existing in the prior art.
[0004] A portable water cup with tipping-preventing function according to the embodiments of the invention comprises a device body. The device body is provided with a cavity that opens upward. The cavity can be used for holding water. The cavity is internally provided with a lifting block which is slidable. The lifting block is internally provided with an open groove that opens upward. First springs are connected with and arranged between the lower end surface of the lifting block and the lower inner wall of the cavity. A first open
2019201598 07 Mar 2019 cavity that opens downward is arranged on the lower inner wall of the cavity. A slide cavity is communicated with and arranged between upper inner wall of the first open cavity and lower inner wall of the cavity. The slide cavity and the first open cavity are internally provided with adsorption device inside. The adsorption device adsorbs the device body on table to prevent dumping. Annular grooves with outward openings are set inside the device body. The annular grooves are internally provided with sleeve blocks sleeved on the device body which are slidable. Locking devices which can lock the sleeve blocks are arranged in the inner walls on both side close to the lower inner walls of the cavity. Venting devices are set in inner walls of both sides of the slide cavity. The venting devices can realize desorbing for the absorption device, thereby desorbing the device body from the table top. Outer end surfaces of the sleeve blocks are fixedly provided with anti-skid bumps. The anti-skid bumps can increase friction between hands and the sleeve blocks. Inner walls of annular grooves are provided with first guide chutes. The sleeve blocks are fixedly connected with first guide sliding blocks extending into the first guide chutes. First return springs are connected with and arranged between upper end surfaces of the first guide sliding blocks and upper inner walls of the first guide chutes.
[0005] Wherein, the adsorption device contains a second slider set in the slide cavity. Upper end of the second slider extends into the cavity and is fixedly connected with lower end surface of the lifting block. An adsorption cavity is arranged in the second slider. A first adsorption duct is arranged on upper inner wall of the adsorption cavity, wherein upper end of the first adsorption duct is connected to an air extractor which is fixedly set in the second slider. The first open cavity is provided with a first slider. Lower end of the second slider extends into the first open cavity and is fixedly connected with upper end surface of the first slider. The first slider is internally provided with a second open cavity opening downward. Upper inner wall of the second open cavity connects with lower inner wall of the adsorption cavity by a conduit. Lower end of the conduit extends into the second open cavity. A second adsorption duct that opens upward is set in the conduit. Plastic blocks are fixedly connected with and arranged between sidewalls of the conduit and sidewalls of the second open cavity
2019201598 07 Mar 2019 close to lower end openings. Third adsorption tube grooves are set in and run through inner walls of both sides of the second adsorption duct. A third slider is slidably set in the second adsorption duct. A second spring is connected with and arranged between lower end surface of the third slider and lower inner wall of the second adsorption duct.
[0006] Wherein, the locking devices contain a gear cavities that are arranged on the inner walls of both sides of the cavity. The gear cavities are provided with transmission gears which are rotatable and meshes with end faces at both sides of the lifting block. One side of each of the transmission gears is coaxially connected with a respective one of the driving bevel gears which are rotatable in the gear cavities. Driven bevel gears are arranged at lower ends of the driving bevel gears which mesh with the driving bevel gears and can rotate in the gear cavities. Rotation axes are fixedly connected to axes on the lower ends of the driven bevel gears. Locking chutes are arranged on inner wall at the lower side of the gear cavities, which are communicated with the annular grooves. The locking chutes are internally provided with locking sliding blocks that are slidable. The end surfaces of the sides of the locking sliding blocks that are away from the annular grooves are connected with inner walls of the locking chutes through third springs. The locking sliding blocks are internally provided with cam grooves that open upward. Lower ends of the rotation axes extend into the cam grooves and are fixedly connected with cams which can rotate within the cam grooves.
[0007] Wherein, the venting devices contain venting chutes which are symmetrically set on and communicated with both sides of the slide cavity. The ends of venting chutes away from the slide cavity are communicated with the annular grooves. The venting chutes are provided with venting sliding blocks which can slide inside the venting chutes, wherein, both sides of the second slider are provided with grooves, and each of the grooves is with an opening towards a respective one of the venting chutes. The ends of the venting sliding blocks near the second slider can slide into the grooves and slide up and down in the grooves. Through holes are set between and communicated with the grooves and the adsorption cavity. The venting sliding blocks are internally provided with negative pressure chutes which open
2019201598 07 Mar 2019 toward the second slider. Negative pressure sliding blocks are slidably arranged in the negative pressure chutes. Fourth springs are connected with and arranged between the negative pressure sliding blocks and the negative pressure chutes. Vent holes running from top to the bottom are arranged in the negative pressure sliding blocks. Swinging levers are connected with and arranged between end faces of the venting sliding blocks away from the second slider and end surfaces of the sleeve blocks adjacent to the second slider. When the sleeve blocks move up and down, the venting sliding blocks are driven to slide by the swinging levers. Sealing pads are fixedly set on end surfaces of the venting sliding blocks adjacent to the second slider. The sealing pads can prevent air leakage between the negative pressure chutes and outside. Second guide chutes that are communicated with and arranged in the lower inner walls of the venting chutes. The lower end surfaces of the venting sliding blocks are fixedly connected with second guide sliding blocks which extend into the second guide chutes. Second return springs are arranged between and connected with the second guide sliding blocks and the second guide chutes.
[0008] The invention has following beneficial effects:
[0009] The invention is convenient to operate with simple structure. When the device is used, the user only needs to hold liquid in cup body and place the device on table top, and then the device can be automatically adsorbed on the table top. When the user needs to pick up the cup, the user only needs to pick up the cup vertically and the device will be automatically out of adsorption from the table top. When the device is subjected to thrust from the circumference sides, the device will not move, thereby preventing cup body from dumping caused by the user’s accidental touch. The invention is convenient and effective, which is recommended.
BRIEF DESCRIPTION OF THE DRAWINGS [0010]
FIG.l is a schematic structural diagram depicting an overall configuration inside
2019201598 07 Mar 2019 a portable water cup with tipping-preventing function in this invention.
[0011 ] FIG.2 is an enlarged schematic structural diagram of “A” in FIG. 1.
[0012] FIG.3 is an enlarged schematic structural diagram of “B” in FIG.l.
[0013] FIG.4 is an enlarged schematic structural diagram of “C” in FIG.l.
DETAILED DESCRIPTION OF THE INVENTION [0014] Referring to Figure 1-4, the embodiments of the present invention: a portable water cup with tipping-preventing function, including a device body 11. The device body 11 is provided with a cavity 21 that opens upward. The cavity 21 can be used for holding water.
The cavity 21 is internally provided with a lifting block 22 which is slidable. The lifting block 22 is internally provided with an open groove 23 that opens upward. First springs 52 are connected with and arranged between the lower end surface of the lifting block 22 and the lower inner wall of the cavity 21. A first open cavity 34 that opens downward is arranged on the lower inner wall of the cavity 21. A slide cavity 49 is communicated with and arranged between upper inner wall of the first open cavity 34 and lower inner wall of the cavity 21. The slide cavity 49 and the first open cavity 34 are internally provided with adsorption device 210 inside. The adsorption device 210 adsorbs the device body 11 on table to prevent dumping. Annular grooves 43 with outward openings are set inside the device body 11. The annular grooves 43 are internally provided with sleeve blocks 29 sleeved on the device body 11 which are slidable. Locking devices 220 which can lock the sleeve blocks 29 are arranged in the inner walls on both side close to the lower inner walls of the cavity 21. Venting devices 230 are set in inner walls of both sides of the slide cavity 49. The venting devices 230 can realize desorbing for the absorption device 210, thereby desorbing the device body 11 from the table top. Outer end surfaces of the sleeve blocks 29 are fixedly provided with anti-skid bumps 31. The anti-skid bumps 31 can increase friction between hands and the sleeve blocks 29. Inner
2019201598 07 Mar 2019 walls of annular grooves 43 are provided with first guide chutes 68. The sleeve blocks 29 are fixedly connected with first guide sliding blocks 32 extending into the first guide chutes 68. First return springs 69 are connected with and arranged between upper end surfaces of the first guide sliding blocks 32 and upper inner walls of the first guide chutes 68.
[0015] Helpfully, the adsorption device 210 contains a second slider 24 set in the slide cavity 49. Upper end of the second slider 24 extends into the cavity 21 and is fixedly connected with lower end surface of the lifting block 22. An adsorption cavity 27 is arranged in the second slider 24. A first adsorption duct 26 is arranged on upper inner wall of the adsorption cavity 27, wherein upper end of the first adsorption duct 26 is connected to an air extractor 25 which is fixedly set in the second slider 24. The first open cavity 34 is provided with a first slider 33. Lower end of the second slider 24 extends into the first open cavity 34 and is fixedly connected with upper end surface of the first slider 33. The first slider 33 is internally provided with a second open cavity 35 opening downward. Upper inner wall of the second open cavity 35 connects with lower inner wall of the adsorption cavity 27 by a conduit 53. Lower end of the conduit 53 extends into the second open cavity 35. A second adsorption duct 28 that opens upward is set in the conduit 53. Plastic blocks 36 are fixedly connected with and arranged between sidewalls of the conduit 53 and sidewalls of the second open cavity 35 close to lower end openings. Third adsorption tube grooves 71 are set in and run through inner walls of both sides of the second adsorption duct 28. A third slider 72 is slidably set in the second adsorption duct 28. A second spring 73 is connected with and arranged between lower end surface of the third slider 72 and lower inner wall of the second adsorption duct 28.
[0016] Helpfully, the locking devices 220 contain a gear cavities 37 that are arranged on the inner walls of both sides of the cavity 21. The gear cavities 37 are provided with transmission gears 38 which are rotatable and meshes with end faces at both sides of the lifting block 22. One side of each of the transmission gears 38 is coaxially connected with a respective one of the driving bevel gears 39 which are rotatable in the gear cavities 37. Driven
2019201598 07 Mar 2019 bevel gears 41 are arranged at lower ends of the driving bevel gears 39 which mesh with the driving bevel gears 39 and can rotate in the gear cavities 37. Rotation axes 42 are fixedly connected to axes on the lower ends of the driven bevel gears 41. Locking chutes 47 are arranged on inner wall at the lower side of the gear cavities 37, which are communicated with the annular grooves 43. The locking chutes 47 are internally provided with locking sliding blocks 46 that are slidable. The end surfaces of the sides of the locking sliding blocks 46 that are away from the annular grooves 43 are connected with inner walls of the locking chutes 47 through third springs 48. The locking sliding blocks 46 are internally provided with cam grooves 44 that open upward. Lower ends of the rotation axes 42 extend into the cam grooves 44 and are fixedly connected with cams 45 which can rotate within the cam grooves 44.
[0017] Helpfully, the venting devices 230 contain venting chutes 55 which are symmetrically set on and communicated with both sides of the slide cavity 49. The ends of venting chutes 55 away from the slide cavity 49 are communicated with the annular grooves 43. The venting chutes 55 are provided with venting sliding blocks 57 which can slide inside the venting chutes 55, wherein, both sides of the second slider 24 are provided with grooves 51, and each of the grooves 51 is with an opening towards a respective one of the venting chutes 55. The ends of the venting sliding blocks 57 near the second slider 24 can slide into the grooves 51 and slide up and down in the grooves 51. Through holes 64 are set between and communicated with the grooves 51 and the adsorption cavity 27. The venting sliding blocks 57 are internally provided with negative pressure chutes 58 which open toward the second slider 24. Negative pressure sliding blocks 61 are slidably arranged in the negative pressure chutes 58. Fourth springs 59 are connected with and arranged between the negative pressure sliding blocks 61 and the negative pressure chutes 58. Vent holes 62 running from top to the bottom are arranged in the negative pressure sliding blocks 61.Swinging levers 56 are connected with and arranged between end faces of the venting sliding blocks 57 away from the second slider 24 and end surfaces of the sleeve blocks 29 adjacent to the second slider 24. When the sleeve blocks 29 move up and down, the venting sliding blocks 57 are driven to slide by the swinging levers 56. Sealing pads 63are fixedly set on end surfaces of the
2019201598 07 Mar 2019 venting sliding blocks 57 adjacent to the second slider 24. The sealing pads 63 can prevent air leakage between the negative pressure chutes 58 and outside. Second guide chutes 66 that are communicated with and arranged in the lower inner walls of the venting chutes 55. The lower end surfaces of the venting sliding blocks 57 are fixedly connected with second guide sliding blocks 65 which extend into the second guide chutes 66. Second return springs 67 are arranged between and connected with the second guide sliding blocks 65 and the second guide chutes 66.
[0018] In the initial state, the lifting block 22 is moved up to the maximum extent in the cavity 21. At this time, the ends of the locking sliding blocks 46 near the second slider 24 are abutted against the sleeve blocks 29. And then the sleeve blocks 29 are moved up to the maximum extent in the annular grooves 43. The venting sliding blocks 57 are moved away from the second slider 24 to the maximum extent in the venting chutes 55. The first slider 33 is moved up to the maximum extent in the first open cavity 34.
[0019] The use steps of the device are as follows: when the user pours water into the cavity 21 and places the device on the table top, the lifting block 22 moves downward under the promoting effect of weight of water in the cavity 21, therefore, and then the first slider 33 is pushed to move downward in the first open cavity 34 by the second slider 24. When lower end surface of the first slider 33 touches against the table top, the air extractor 25 is activated and then will bleed air between the plastic blocks 36 and the table top through the first adsorption duct 26, the second adsorption duct 28 and the third adsorption tube grooves 71. At this time, the lower end surfaces of the plastic blocks 36 are adsorbed on the table top, thus the device body 11 is adsorbed on the table top. Meanwhile, when the air between the lower end surfaces of the plastic blocks 36 and table top is exhausted, the third slider 72 moves upward in the second adsorption duct 28 under action of negative pressure. Thereby, the third adsorption tube grooves 71 are blocked. In this process, when the lifting block 22 moves downward in the cavity 21, the lifting block 22 drives the transmission gears 38 to rotate and the driven bevel gears 41 are driven to rotate by the driving bevel gears 39. Then, the cams 45
2019201598 07 Mar 2019 are driven to rotate by the rotation axes 42, thereby the locking sliding blocks 46 are driven to slide in the locking chutes 47. When the sleeve blocks 29 are disengaged from the abutment with the locking sliding blocks 46, the sleeve blocks 29 move downward by the elastic force of the first return springs 69, and then the venting sliding blocks 57 are pushed by the swinging levers 56 to slide toward the second slider 24 and slide into the grooves 51 and touch against the inner walls of the grooves 51. When a negative pressure is generated in the adsorption cavity 27, the negative pressure sliding blocks 61 can be adsorbed and slide into the adsorption cavity 27 through the through holes 64, thus the lower end opening of the first adsorption duct 26 is blocked. When the user needs to pick up the cup, the user can hold the sleeve blocks 29 and pull them up, and the sleeve blocks 29 are moved upward relative to the device body 11, and then the venting sliding blocks 57 are pulled by the swinging levers 56 to move to the side away from the second slider 24. When the upper openings of the vent holes 62 slide out of the negative pressure chutes 58, air enters the adsorption cavity 27 through the vent holes 62, thereby the lower end surfaces of the plastic blocks 36 and the table top are inflated, and at this time, the device body 11 is out of adsorption from the table top.
[0020] The invention has following beneficial effects:
[0021] The invention is convenient to operate with simple structure. When the device is used, the user only needs to hold liquid in cup body and place the device on table top, and then the device can be automatically adsorbed on the table top. When the user needs to pick up the cup, the user only needs to pick up the cup vertically and the device will be automatically out of adsorption from the table top. When the device is subjected to thrust from the circumference sides, the device will not move, thereby preventing cup body from dumping caused by the user’s accidental touch. The invention is convenient and effective, which is recommended.
[0022] Persons skilled in the art should understand that, the invention will be subject to modification and improvement based on its intention and extent, which will also fall into the
2019201598 07 Mar 2019 claimed protection extent of this invention. The claimed protection extent of the invention shall be determined with reference to the appended claims.
2019201598 07 Mar 2019

Claims (4)

1. A portable water cup with tipping-preventing function, comprising:
a device body, wherein device body is provided with a cavity that opens upward, wherein the cavity can be used for holding water, and the cavity is internally provided with a lifting block which is slidable, wherein the lifting block is internally provided with an open groove that opens upward;
first springs connected with and arranged between the lower end surface of the lifting block and the lower inner wall of the cavity;
a first open cavity that opens downward arranged on the lower inner wall of the cavity;
a slide cavity communicated with and arranged between upper inner wall of the first open cavity and lower inner wall of the cavity;
wherein the slide cavity and the first open cavity are internally provided with adsorption device inside, and the adsorption device adsorbs the device body on table to prevent dumping;
annular grooves with outward openings set inside the device body, wherein the annular grooves are internally provided with sleeve blocks sleeved on the device body which are slidable;
locking devices which can lock the sleeve blocks arranged in the inner walls on both side close to the lower inner walls of the cavity;
2019201598 07 Mar 2019 venting devices set in inner walls of both sides of the slide cavity, wherein the venting devices can realize desorbing for the absorption device, thereby desorbing the device body from the table top, and outer end surfaces of the sleeve blocks are fixedly provided with anti-skid bumps, wherein the anti-skid bumps can increase friction between hands and the sleeve blocks, and inner walls of annular grooves are provided with first guide chutes, and the sleeve blocks are fixedly connected with first guide sliding blocks extending into the first guide chutes;
first return springs connected with and arranged between upper end surfaces of the first guide sliding blocks and upper inner walls of the first guide chutes;
whereby when a user places the device on a tabletop, the adsorption device is started and then adsorbed on the tabletop, so that the device body is adsorbed on the tabletop, so as to prevent the water in the cavity from spilling out due to the tipping of the device body, and when a user needs to pick up the device body, the sleeve blocks need to be pulled upwards, so that the adsorption device can be ventilated through the venting devices, and at this time, the suction of the adsorption device to the tabletop is released.
2. The portable water cup with tipping-preventing function according to claim 1, wherein the adsorption device comprises a second slider set in the slide cavity, wherein upper end of the second slider extends into the cavity and is fixedly connected with lower end surface of the lifting block;
an adsorption cavity arranged in the second slider;
a first adsorption duct arranged on upper inner wall of the adsorption cavity, wherein upper end of the first adsorption duct is connected to an air extractor which is fixedly
2019201598 07 Mar 2019 set in the second slider, and the first open cavity is provided with a first slider, and lower end of the second slider extends into the first open cavity and is fixedly connected with upper end surface of the first slider, wherein the first slider is internally provided with a second open cavity opening downward, wherein upper inner wall of the second open cavity connects with lower inner wall of the adsorption cavity by a conduit, and lower end of the conduit extends into the second open cavity;
a second adsorption duct that opens upward set in the conduit;
plastic blocks fixedly connected with and arranged between sidewalls of the conduit and sidewalls of the second open cavity close to lower end openings;
third adsorption tube grooves set in and run through inner walls of both sides of the second adsorption duct;
a third slider slidably set in the second adsorption duct;
a second spring connected with and arranged between lower end surface of the third slider and lower inner wall of the second adsorption duct;
whereby when the device is placed on the table top, the lifting block moves downward under the promoting effect of weight of water in the cavity, and then the first slider is pushed to move downward in the first open cavity by the second slider, and when lower end surface of the first slider touches against the table top, the air extractor is activated and then will bleed air between the plastic blocks and the table top through the first adsorption duct, the second adsorption duct 28 and the third adsorption tube grooves, and at this time, the lower end
2019201598 07 Mar 2019 surfaces of the plastic blocks are adsorbed on the table top, thus the device body is adsorbed on the table top; meanwhile, when the air between the lower end surfaces of the plastic blocks and table top is exhausted, the third slider moves upward in the second adsorption duct under action of negative pressure, and thereby, the third adsorption tube grooves are blocked.
3. The portable water cup with tipping-preventing function according to claim 1-2, wherein the locking devices comprise a gear cavities that are arranged on the inner walls of both sides of the cavity, wherein the gear cavities are provided with transmission gears which are rotatable and meshes with end faces at both sides of the lifting block, wherein one side of each of the transmission gears is coaxially connected with a respective one of the driving bevel gears which are rotatable in the gear cavities;
driven bevel gears arranged at lower ends of the driving bevel gears which mesh with the driving bevel gears and can rotate in the gear cavities;
rotation axes fixedly connected to axes on the lower ends of the driven bevel gears;
locking chutes arranged on inner wall at the lower side of the gear cavities, which are communicated with the annular grooves, wherein the locking chutes are internally provided with locking sliding blocks that are slidable, wherein the end surfaces of the sides of the locking sliding blocks that are away from the annular grooves are connected with inner walls of the locking chutes through third springs, and the locking sliding blocks are internally provided with cam grooves that open upward, and lower ends of the rotation axes extend into the cam grooves and are fixedly connected with cams which can rotate within the cam grooves;
2019201598 07 Mar 2019 whereby when the lifting block moves downward under the promoting effect of weight of water in the cavity, the transmission gears are driven to rotate and the driven bevel gears are driven to rotate by the driving bevel gears, and then the cams are driven to rotate by the rotation axes, so that the locking sliding blocks are driven to slide in the locking chutes, and when the sleeve blocks are disengaged from the abutment with the locking sliding blocks, the sleeve blocks move downward.
4. The portable water cup with tipping-preventing function according to claim 1-3, wherein the venting devices comprise venting chutes which are symmetrically set on and communicated with both sides of the slide cavity, wherein the ends of venting chutes away from the slide cavity are communicated with the annular grooves, and the venting chutes are provided with venting sliding blocks which can slide inside the venting chutes;
wherein, both sides of the second slider are provided with grooves, and each of the grooves is with an opening towards a respective one of the venting chutes, and the ends of the venting sliding blocks near the second slider can slide into the grooves and slide up and down in the grooves;
through holes set between and communicated with the grooves and the adsorption cavity;
wherein the venting sliding blocks are internally provided with negative pressure chutes which open toward the second slider;
negative pressure sliding blocks slidably arranged in the negative pressure chutes;
fourth springs connected with and arranged between the negative pressure sliding blocks and the negative pressure chutes;
2019201598 07 Mar 2019 vent holes running from top to the bottom arranged in the negative pressure sliding blocks;
swinging levers connected with and arranged between end faces of the venting sliding blocks away from the second slider and end surfaces of the sleeve blocks adjacent to the second slider, and when the sleeve blocks move up and down, the venting sliding blocks are driven to slide by the swinging levers;
sealing pads fixedly set on end surfaces of the venting sliding blocks adjacent to the second slider, wherein the sealing pads can prevent air leakage between the negative pressure chutes and outside;
second guide chutes communicated with and arranged in the lower inner walls of the venting chutes;
wherein the lower end surfaces of the venting sliding blocks are fixedly connected with second guide sliding blocks which extend into the second guide chutes;
second return springs arranged between and connected with the second guide sliding blocks and the second guide chutes;
whereby when the sleeve blocks move downwards, the venting sliding blocks are pushed by the swinging levers to slide toward the second slider and slide into the grooves and touch against the inner walls of the grooves, and when a negative pressure is generated in the adsorption cavity, the negative pressure sliding blocks can be adsorbed and slide into the adsorption cavity through the through holes, thus the lower end opening of the first adsorption duct is blocked; when the sleeve blocks are moved upward, the venting sliding blocks are pulled by the swinging levers to move to the side away from the second slider, and when the upper openings of the vent holes slide out of the negative pressure chutes, air enters the adsorption cavity through the vent holes, thereby the lower end surfaces of the plastic blocks
2019201598 07 Mar 2019 and the table top are inflated.
1 / 4
2019201598 07 Mar 2019
DRAWINGS
Figure 1
2 / 4
2019201598 07 Mar 2019
Figure 2
3 / 4
2019201598 07 Mar 2019
AU2019201598A 2019-02-28 2019-03-07 A portable water cup with tipping-preventing function Ceased AU2019201598B2 (en)

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CN109875342B (en) 2020-08-28
CN109875342A (en) 2019-06-14
AU2019201598B2 (en) 2019-07-11

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