Handheld glass cleaning device

Abstract

The utility model discloses a handheld glass cleaning device which comprises a box body, an operating rod connected with the box body, at least one suction cup installed on the face, close to glass, of the box body and at least one scraping strip fixed to the face, close to the glass, of the box body. The suction cup is a vacuum suction cup, the vacuum suction cup is communicated with a miniature vacuum pump through a vacuumizing pipe, and the miniature vacuum pump is electrically connected with a battery. The pressure sensor is used for sensing the vacuum degree of the vacuum suction cup, the pressure sensor is electrically connected with the battery and the main controller, and the micro vacuum pump is electrically connected with the main controller; the vacuum suction cup is made of hard materials, and a protruding flexible sealing ring is fixed to the end face of the vacuum suction cup. The vacuumizing pipe is communicated with a pressing valve switch used for feeding air to enable the vacuum suction cup to be separated from the glass. The miniature vacuum pump and other parts are all installed in one section of the operating rod. According to the handheld glass cleaning device, the suction force of the suction cup can meet the requirement that the hanging strip cleanly scrapes glass, and labor is relatively saved in the process that a person holds the operating rod for cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of glass cleaning appliances, in particular to a handheld glass cleaning device. Background Art

[0002] The prior art glass-wiping devices are generally divided into two types.

[0003] One is an automatic glass-wiping device of the glass-wiping robot type, which generally includes an adsorption structure, an automatic walking structure, an automatic water supply structure, an automatic wiping structure, an automatic obstacle-crossing structure, and a remote control structure, etc. It has complete functions and a high degree of automation, and does not require human support during the cleaning process. It is generally used for wiping large glass curtain walls, outdoor glass of high-rise and super-high-rise buildings. However, the purchase cost of the automatic glass-wiping device of the glass-wiping robot type is relatively high, and the use cost such as power consumption is also relatively high. Due to its complete functions, its structure is relatively complex and its failure rate is relatively high. Therefore, general households and individual merchants generally do not purchase and use the automatic glass-wiping device of the glass-wiping robot type.

[0004] The other is a hand-held glass-wiping device, which generally includes a box or a housing, an operating rod connected to the box, a suction cup installed on the side of the box close to the glass, a scraper fixed on the side of the box close to the glass, and a water-absorbing wiping sheet such as a sponge sheet or a sponge board. The outdoor and indoor surfaces of the glass can be scraped and wiped by adjusting the angle of the operating rod. In applications such as wiping the inside and outside glass of high-rise residential buildings, wiping the glass inside the home, wiping the glass of storefronts, and wiping the glass of small curtain walls, the hand-held glass-wiping device has a relatively low purchase cost, relatively low power consumption and other use costs, and a relatively low failure rate compared to automatic glass-wiping devices such as glass-wiping robots, and can meet the glass cleaning needs of such users. Therefore, the hand-held glass-wiping device of the prior art still has broad market prospects.

[0005] However, the hand-held glass wiping devices in the prior art still have the following common deficiencies: 1. If the suction force of the suction cup is not enough, the scraping strip and the wiping sheet such as the sponge sheet will not fit the glass well enough, which will affect the glass cleaning effect, that is, the glass is not cleaned very well; if the suction force of the suction cup is too strong, it will affect the flexibility of the manual wiping process, making the hand-held operating rod wiping process relatively laborious, especially after wiping, it is difficult and laborious to remove the suction cup from the glass. 2. The vacuum pump, battery, control panel and other parts are all installed in the box body, which increases the weight of the manual dragging of the box body, making the process of wiping the glass relatively laborious. At the same time, if the seal is not tight, water vapor and stains are also easy to corrode the electrical components and affect their service life. 3. Some use an external water source to collect water from the bathroom and kitchen, etc., which requires a long pipe and is prone to leaking, which is very inconvenient and affects the normal living or working environment when wiping the glass; some use a water tank placed in the box body, which further increases the weight of the manual dragging of the box body, making the process of wiping the glass more laborious. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a handheld glass wiping device which can make the suction force of the suction cup meet the requirement of the scraper strip to clean the glass, and can make the wiping process of holding the operating rod relatively labor-saving and convenient and quick to detach the suction cup from the glass after wiping.

[0007] The technical solution of the utility model is to provide a hand-held glass wiping device, comprising a box body, an operating rod connected to the box body, at least one suction cup installed on one side of the box body close to the glass, and at least one scraper fixed on one side of the box body close to the glass; the suction cup is a vacuum suction cup, the vacuum suction cup is connected to a micro vacuum pump via a vacuum pumping tube, and the micro vacuum pump is electrically connected to a battery; it also includes a pressure sensor for sensing the vacuum degree of the vacuum suction cup, the pressure sensor is electrically connected to the battery and a main controller, and the micro vacuum pump is electrically connected to the main controller; the vacuum suction cup is made of hard material, and a protruding flexible sealing ring is fixed on the end face of the vacuum suction cup; the vacuum pumping tube is connected to a press valve switch for letting in air to make the vacuum suction cup detach from the glass.

[0008] After adopting the above structure, the handheld glass cleaning device of the utility model has the following advantages:

[0009] During use, the pressure sensor transmits the vacuum degree or negative pressure value detected in the vacuum suction cup to the main controller at any time. The main controller compares it with the preset vacuum degree value or preset negative pressure value to control the start or stop of the vacuum pump so that the vacuum suction cup always maintains the preset vacuum degree, that is, the required suction force. In particular, the vacuum suction cup is made of hard materials such as PM plastic and the end face is a protruding flexible sealing ring that protrudes outward, which can not only ensure the adhesion between the scraper and the glass so that the glass is scraped very cleanly, but also ensure the flexibility of the movement of the device during the scraping process, so that the scraping process of the handheld operating rod is relatively labor-saving, achieving a harmonious unity of scraping the glass cleanly and saving labor during the scraping process.

[0010] Furthermore, since the vacuum tube is connected with a push valve switch for admitting air to make the vacuum suction cup detach from the glass, after the glass is wiped clean, the air can be allowed to enter the vacuum suction cup through the vacuum tube by pressing the push valve switch or the push valve, so that the vacuum suction cup can be quickly detached from the glass, which is convenient, fast and labor-saving.

[0011] Furthermore, the operating rod is composed of multiple hollow circular tubes connected end to end in a detachable manner; the micro vacuum pump, pressure sensor, main controller and battery are all installed in one of the operating rods, and the operating rod includes a tube body and a cover body detachably connected to the tube body and forming a first hollow circular tube. The air inlet of the micro vacuum pump is connected to the vacuum suction cup through a vacuum pumping tube, and the exhaust port of the micro vacuum pump is located in the operating rod section. One end of the air inlet pipe connected in series with a push switch is connected to the vacuum pumping pipe, and the other end of the air inlet pipe is located in the operating rod section. After adopting the above structure, the vacuum pump, battery, circuit board with main control and other parts are all installed in one of the multiple hollow circular tubes, such as a section at the hand-held part, which reduces the weight of the dragging box body, and multiple parts are arranged along the length direction of the tube, and the weight of the hand-held operating rod will not be increased, making the process of wiping the glass relatively labor-saving. At the same time, because the nozzle that sprays water away from the glass box avoids the erosion of water vapor and stains on electrical components, the failure rate of the hand-held glass wiping device is relatively reduced, and the service life of the hand-held glass wiping device is relatively extended.

[0012] Furthermore, the operating rod has a button start switch and a button stop switch placed in the first hollow circular tube and passing through the hole in the tube wall for pressing the micro vacuum pump. The button start switch and the button stop switch are electrically connected to the battery and the micro vacuum pump respectively through wires. If the micro vacuum pump needs to be started, the button of the button start switch is pressed and then released, and the micro vacuum pump is connected to the power supply. The device always maintains the vacuum degree in the vacuum suction cup under the automatic control of the main controller and the pressure sensor; if the micro vacuum pump needs to be stopped, the button of the button stop switch is pressed and then released, and the micro vacuum pump is disconnected from the power supply and stops working. With the above structure, the operation of starting and stopping the micro vacuum pump is more convenient, and the operation of the handheld glass cleaning device is more convenient and labor-saving.

[0013] Furthermore, the vacuum tube placed in the first hollow circular tube formed by the tube body and the detachable cover body and connected to the air inlet of the micro vacuum pump is connected to the vacuum tube in the second hollow circular tube of the front section through a quick-connect joint, and the vacuum tube in the second hollow circular tube of the front section is connected to the vacuum nozzle of the vacuum suction cup. After adopting the above structure, the connection of the vacuum tube at the head and tail connection of the two hollow circular tubes is fast and reliable, and the layout in the remaining hollow circular tubes and the connection with the vacuum suction cup are also convenient and reliable, further ensuring the technical effects of convenient and labor-saving operation, reducing the weight of the dragging box body, avoiding the erosion of electrical components by water vapor and stains, and relatively extending the service life of the handheld glass cleaning device.

[0014] Furthermore, the operating rod is formed by connecting multiple hollow circular tubes detachably at the ends, wherein one section of the operating rod includes a tube body and a cover body detachably connected to the tube body and constituting a first hollow circular tube; the handheld glass-wiping device also includes a micro water pump installed in the first hollow circular tube of the section, the micro water pump is electrically connected to the battery and the power button switch via a wire, the water inlet of the micro water pump is connected to the water storage container via a water pipe, and the water outlet of the micro water pump is connected to the nozzle arranged at the front end of the operating rod via a water pipe. It is not difficult to understand that the micro water pump and the micro vacuum pump described above are installed in the same first hollow circular tube. After adopting the above structure, water is sprayed before wiping the glass, so that the glass is wiped clean better and the wiping process is more labor-saving, and further ensures the technical effect of reducing the weight of the dragging box, avoiding the erosion of electrical components by water vapor and stains, and relatively extending the service life of the handheld glass-wiping device.

[0015] Furthermore, the power button switch is an elastic push power switch that is pressed to turn on the power to start the micro water pump and spray water through the nozzle, and is released to disconnect the power to stop the micro water pump and the nozzle stops spraying water. The power button switch can be installed at the front end of the operating rod near the nozzle. With the above structure, the water spraying operation is more convenient and labor-saving, making the operation process of the handheld glass cleaning device more labor-saving.

[0016] Furthermore, the water storage container is a water storage cylinder screwed on the tail end of the operating rod, and the water storage cylinder is connected to the water inlet of the micro water pump through a water pipe. After adopting the above structure, the water storage cylinder can be transformed from a recycled plastic mineral water bottle, which not only saves costs, but also does not occupy additional space in the hollow circular tube. The water storage cylinder and the box body are respectively located at the head and tail of the operating rod, and the weight is just balanced, which further ensures the technical effect of reducing the weight of the dragging box body and making the glass wiping process relatively labor-saving.

[0017] Furthermore, the water pipe placed in the first hollow circular tube formed by the tube body and the detachable cover body and connected to the water outlet of the micro water pump is connected to the water pipe in the second hollow circular tube of the front section through a quick-connect joint, and the water pipe in the second hollow circular tube of the front section is connected to the water inlet joint of the nozzle arranged at the front end of the operating rod. After adopting the above structure, the connection of the outlet water pipe at the head and tail connection of the two hollow circular tubes is fast and reliable, and the layout in the remaining second hollow circular tubes and the connection with the nozzle are also convenient and reliable, which further ensures the technical effects of convenient and labor-saving operation, reducing the weight of the dragging box body, avoiding the erosion of water vapor and stains on electrical components, and relatively extending the service life of the handheld glass cleaning device.

[0018] Furthermore, the scraper strip is connected to the side of the box body close to the glass by a clamping structure with an upper and lower movable gap, and the two ends of the plurality of compression springs are respectively against the scraper strip and the box body. With the above structure, the scraper strip can not only clean the glass during wiping, but also relatively reduce the drag resistance, further ensuring the technical effect of convenient and labor-saving operation.

[0019] Furthermore, the front end of the first section of the operating rod is hinged to the side of the box body away from the glass, and the rear end of the first section of the operating rod is connected to the second section of the operating rod at the front end of the operating rod by a rotating head that can be limited at any angle. With the above structure, when the vacuum suction cup sucks the glass and the scraper wipes the glass, the operating rod and the box body can always be at a better wiping angle, so that it is more convenient to wipe the indoor and outdoor surfaces of the glass, further ensuring the technical effect of convenient operation and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structure diagram of the handheld glass cleaning device of the utility model. Figure 1 .

[0021] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of A.

[0022] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of B.

[0023] Figure 4 This is a three-dimensional structure diagram of the handheld glass cleaning device of the utility model. Figure 2 .

[0024] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of C in the figure.

[0025] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of D in the figure.

[0026] Figure 7 yes Figure 4 Schematic diagram of the enlarged structure of E.

[0027] Figure 8 yes Figure 4 Schematic diagram of the exploded structure of the hollow circular tube at the middle and secondary tail end relative to the tube body and cover body of the components installed therein.

[0028] Fig. 9 yes Figure 1 Schematic diagram of the exploded structure of the hollow circular tube at the middle and secondary tail end relative to the tube body and cover body of the components installed therein.

[0029] Fig.10 yes Figure 8 Schematic diagram of the enlarged structure of F.

[0030] Fig.11 yes Fig. 9 Schematic diagram of the enlarged structure of J in the figure.

[0031] Fig.12 yes Figure 8 An exploded schematic diagram of the joint between the hollow circular tube at the secondary end and the previous section of the hollow circular tube, and an exploded schematic diagram of the structure in which the previous section of the hollow circular tube is connected to the previous section of the hollow circular tube via internal and external threads.

[0032] As shown in the figure:

[0033] 1. Box body, 11. Vacuum suction cup, 12. Scraping strip, 13. Box cover, 14. Short cylinder with end plate, 15. Flexible sealing ring;

[0034] 2. operating rod, 21. first hollow circular tube, 211. tube body, 212. cover body, 22. internal thread, 23. external thread, 24. bracket, 25. round handle, 26. rotating head, 27. reinforcing rib structure, 28. second hollow circular tube, 29. quick connector, 291. an air pipe interface, 292. another air pipe interface, 293. a water pipe interface, 294. another water pipe interface, 210. water storage cylinder, 2101. plugging, 214. thermoplastic soft rubber sheet;

[0035] 3. Parts installed on the operating lever, 31. Battery, 32. Mini vacuum pump, 321. Air inlet, 322. Exhaust port, 33. Pressure sensor, 34. Press valve switch, 341. Button, 35. Air inlet pipe, 351. Air inlet connector, 36. Vacuum tube, 37. Button start switch, 38. Button stop switch, 39. Mini water pump, 391. Water inlet, 392. Water outlet, 310. Main controller, 311. Water pipe, 312. Sprinkler. DETAILED DESCRIPTION

[0036] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these specific implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical means involved in each specific implementation method of the present invention described below can be combined with each other as long as there is no conflict between them.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 shown.

[0038] The handheld glass wiping device of the utility model comprises a box body 1, an operating rod 2 connected to the box body 1, at least one suction cup installed on one side of the box body 1 close to the glass, and at least one scraper 12 fixed on one side of the box body 1 close to the glass. The suction cup is a vacuum suction cup 11, which is connected to a micro vacuum pump 32 via a vacuum pumping tube 36, and the micro vacuum pump 32 is electrically connected to a battery 31 via a wire. The handheld glass wiping device of the utility model also comprises a pressure sensor 33 for sensing the vacuum degree in the vacuum suction cup 11 or the vacuum suction cup, the pressure sensor 33 is electrically connected to the battery 31 and the main controller 310 via a wire, and the micro vacuum pump 32 is electrically connected to the main controller 310 via a wire. The pressure sensor 33 for sensing the vacuum degree of the vacuum suction cup 11 is also called a vacuum sensor, or a micro vacuum pressure switch, or a negative pressure switch, or a negative pressure pressure switch, or a vacuum switch. The above is the prior art.

[0039] The invention points of the handheld glass-wiping device of the utility model are as follows.

[0040] The vacuum suction cup 11 is made of a hard material, such as PM plastic or nylon. Figure 4 , Figure 5 and Figure 8 As shown, a flexible sealing ring 15 protruding from the end surface of the vacuum suction cup 11 is fixed to the end surface of the vacuum suction cup 11, such as a silicone sealing ring, a latex sealing ring, or a rubber sealing ring.

[0041] like Figure 7 , Figure 8 and Fig.10 As shown, the vacuum tube 36 is connected to a push valve switch 34 for admitting air to make the vacuum suction cup 36 detach from the glass. The flexible tube for vacuuming is connected to an air inlet tube 35 such as a flexible tube for admitting air. The flexible tube for admitting air is connected to a push valve switch 34. A button 341 of the push valve switch 34 passes through a through hole on the circular tube wall and extends out of the first hollow circular tube 21 or the tube wall of the first hollow circular tube or the outside of the tube wall for hand pressing. The other end of the air inlet tube 35, i.e., the free end, can be connected to an air inlet connector 351, and the air inlet connector 351 can be fixed in the first hollow circular tube 21.

[0042] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 shown.

[0043] The operating rod 2 is composed of multiple sections of hollow circular tubes that are detachably connected at the head and tail, such as internal and external threads screwed together or internal and external tubes sleeved together and then fixed with screws. For ease of description, the hollow circular tube with the tube body 211 and the cover body 212 is called the first hollow circular tube 21, and the remaining hollow circular tubes except this section, i.e., the first hollow circular tube, are called the second hollow circular tube 28. The internal and external threads screwed together are the external threads 23 and the internal threads 22 screwed together. The micro vacuum pump 32, the pressure sensor 33, the main controller 310 and the battery 31 are all installed in one section of the operating rod 2, i.e., one section of the hollow circular tube, i.e., the first hollow circular tube 21. The section of the operating rod 2, i.e., the first hollow circular tube 21, includes a tube body 211 and a cover body 212 which is detachably connected to the tube body 211 and constitutes the hollow circular tube 21, such as two roughly semicircular tubes evenly distributed, each of which has one end as a cylinder, and the two roughly semicircular tubes can be the tube body 211 and the cover body 212 to each other, i.e., one is the tube body 211, and the other is the cover body 212. The tube body 211 and the cover body 212 can be connected by male and female buckles, or can be screwed by a connecting block with screws. The air inlet 321 of the micro vacuum pump 32 is connected to the vacuum suction cup 11 through the vacuum pipe 36, and the exhaust port 322 of the micro vacuum pump 32 is located in the section of the operating rod 2, i.e., the first hollow circular tube 21. As described above, one end of the air inlet pipe 35 connected in series with the pressing valve switch 34 is connected to the vacuum pipe 36, and the other end of the air inlet pipe 35 is located in the section of the operating rod 2, i.e., the first hollow circular tube 21. The tail end or the lower end of the first hollow circular tube 21 of the operating rod 2 can be connected to the water storage cylinder 210 described below. If the water storage cylinder 210 is also regarded as a part of the operating rod 2, the water storage cylinder 210 is located at the tail end or the lower end of the operating rod 2. Figure 1 , Figure 4 , Figure 8 and Fig. 9 It is easy to understand that the vacuum tube 36, the air inlet tube 35 and the water tube 311 in the first hollow circular tube 21 can all be flexible tubes.

[0044] The operating rod 2 has a button start switch 37 and a button stop switch 38 placed in a hollow circular tube such as the first hollow circular tube 21, and the button passes through a hole in the tube wall for pressing the micro vacuum pump 32. The button start switch 37 and the button stop switch 38 are electrically connected to the battery 31 and the micro vacuum pump 32 respectively through wires.

[0045] As described above, the operating rod 2 is formed by connecting multiple hollow circular tubes end to end in a detachable manner, wherein one section of the operating rod 2, namely the first hollow circular tube 21, includes a tube body 211 and a cover body 212 detachably connected to the tube body 211 and constituting the first hollow circular tube 21. It is not difficult to understand that this section of the operating rod 2 is the first hollow circular tube 21 on which the micro vacuum pump 32 and other components are installed as described above. In other words, the micro water pump 39 described below is installed in the same section of the hollow circular tube on which the micro vacuum pump 32 and other components are installed as described above, namely the first hollow circular tube 21. The handheld glass-wiping device also includes a micro water pump 39 installed in the first hollow circular tube 21. The micro water pump 39 is electrically connected to the battery 31 and the power button switch 310 via a wire. The water inlet 391 of the micro water pump 39 is connected to the water storage container via a water pipe 311 such as a flexible pipe, and the water outlet 392 of the micro water pump 39 is connected to a nozzle 312 provided on the front end of the operating rod 2 such as a second hollow circular tube 28 via a water pipe 311 such as a flexible pipe.

[0046] The power button switch 310 is an elastic push power switch that is pressed to turn on the power to start the micro water pump 39 and spray water through the nozzle 312, and is released to disconnect the power to stop the micro water pump 39, that is, stop working and stop the nozzle 312 from spraying water. The power button switch 310, such as the elastic push switch, passes through the through hole of the second hollow circular tube 28 and extends out of the operating rod 2, that is, the wall outside the second hollow circular tube 28, and can be covered with a thermoplastic soft rubber sheet 14, such as a thermoplastic soft rubber sheet 14 of TPE, TPR or TPU.

[0047] The water storage container can be a water storage cylinder 210 screwed on the tail end of the operating rod 2, such as the tail end of the first hollow circular tube 21. The water storage cylinder 210 is connected to the water inlet 391 of the micro water pump 39, such as the water inlet joint, through a water pipe 311, such as a flexible tube. It is not difficult to understand that the water storage cylinder 210 can be transformed from a recycled plastic mineral water bottle, such as sealing the bottle mouth of the plastic mineral water bottle with a plug 2101, inserting a water pipe into the through hole of the plug 2101 to discharge water, and the other end of the water pipe, such as a flexible tube, is connected to the water inlet 391 of the micro water pump 39. The water pipe and the through hole of the plug 2101 can be sealed, such as interference fit. A plurality of reinforcing ribs or reinforcing rib plate structures 27 can be provided on the outer side of the connection between the tail end of the first hollow circular tube 21 and the water storage cylinder 210.

[0048] The vacuum tube 36 placed in the first hollow circular tube 21 formed by the tube body 211 and the detachable cover body 212 and connected to the air inlet 321 of the micro vacuum pump 32 is connected to the vacuum tube in the second hollow circular tube 28 of the front section through an air pipe interface 291 of a quick connector 29, and the other air pipe interface 292 of the quick connector 29 is connected to the vacuum tube in the second hollow circular tube 28 of the front section. The vacuum tube in the second hollow circular tube 28 of the front section passes through the remaining second hollow circular tubes 28 and is connected to the vacuum nozzle of the vacuum suction cup 11.

[0049] The water pipe 311 placed in the first hollow circular tube 21 composed of the tube body 211 and the detachable cover body 212 and connected to the water outlet 392 of the micro water pump 39 is connected to the water pipe in the second hollow circular tube 28 of the front section through a water pipe interface 293 of a quick connector 29. Another water pipe interface 294 of the quick connector 29 is connected to the water pipe in the second hollow circular tube 28 of the front section. The water pipe in the second hollow circular tube 28 of the front section passes through the remaining second hollow circular tubes 28 and is connected to the water inlet joint of the nozzle 312 arranged at the front end of the operating rod 2, such as a second hollow circular tube 28.

[0050] It is not difficult to understand that the quick-connect joint 29 connected to the vacuum tube 36 described above and the quick-connect joint 29 connected to the water pipe 311 described above are the same quick-connect joint 29 .

[0051] like Figure 1 , Figure 2 , Figure 4 , Figure 5 shown.

[0052] The scraper strip 12 is connected to the side of the box body 1 close to the glass by a clamping structure with upper and lower movable gaps, and two ends of a plurality of compression springs or support springs are respectively against the scraper strip 12 and the box body 1.

[0053] The scraper strip 12 may be a rubber scraper strip; only one scraper strip 12 may be provided, such as Figure 4 , Figure 5 and Figure 8 As shown, the scraper strip 12 can be arranged on the front side of the rectangular box body 1. Of course, a scraper strip can also be arranged on the front and rear sides of the rectangular box body. The two ends of the scraper strip 12 are generally flush with the respective end faces of the box body 1.

[0054] In addition to the scraper strip and the vacuum suction cup, a water-absorbing wiping block such as a sponge block or a cloth block can also be fixed on the surface of the box body close to the glass.

[0055] The front end of the first section of the operating rod 2 can be hinged to the side of the box body 1 away from the glass, such as two short cylinders 14 with end plates or short cylinders with end plates on the side of the box body 1 away from the glass, and the front end of the first section of the rod has a bracket 24 such as a V-shaped bracket, and the free end of the bracket 24 has two end faces that are respectively against the end plates of the short cylinders and can rotate relatively. The rear end of the first section of the rod is connected to the second section of the rod at the front end of the operating rod 2 by a rotating head 26 that can be limited at any angle. The short cylinder 14 with end plates can also be called a round handle seat.

[0056] The box body 1 can be a rectangular box body, and a box cover 13 can be provided on the side of the box body 1 away from the glass. The box cover 13 can be screwed and fixed to the box body 1 through a plurality of screws and screw seats. The two short cylinders 14 with end plates are fixed on the box cover 13.

[0057] There can be two vacuum suction cups 11 , which are equidistantly arranged on both sides of the length bisector of the box body 1 , and the distances between the two vacuum suction cups 11 and their respective end faces of the box body 1 are equal.

[0058] The vacuum suction cup 11 is also called a negative pressure suction cup. The micro vacuum pump 32 is also called a micro negative pressure pump. The cross-sectional shape of the vacuum suction cup 11 is as follows: Figure 4 and Figure 5 The shape shown is preferably a circle, but may also be a rectangle, a triangle or other polygons except rectangles and triangles. The main controller 310 is preferably an MCU control circuit, or a PCB control circuit board including an MCU chip.

[0059] It is not difficult to understand that for the convenience of expression, the set of all parts installed on the operating rod 2, i.e., each section of the hollow circular tube, is marked as 3: parts 3 installed on the operating rod 2. The parts 3 installed on the operating rod 2 are also called components installed on the operating rod 2.

[0060] The flexible tube mentioned above can be a silicone tube or a latex tube or a rubber tube, etc. The pressure sensor 33, the battery 31 such as a lithium battery, the MCU chip, the push valve switch 34, the micro vacuum pump 32, the micro water pump 39, the button start switch 37 or the button power on switch, the button stop switch 38 or the button power off switch, the nozzle 312, the power button switch 37 or the elastic push power switch, the quick connector 29 and the rotating head 26 that can be limited at any angle, etc. mentioned above are all commercial products or commercial goods.

[0061] The above unmarked parts are not shown in the drawings. The drawings are for illustration only. If there is any inconsistency between the drawings and the text description or between the drawings, the text description shall prevail.

[0062] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hand-held glass-wiping device, comprising a box body, an operating rod connected to the box body, at least one suction cup installed on one side of the box body close to the glass, and at least one scraper fixed on one side of the box body close to the glass; the suction cup is a vacuum suction cup, which is connected to a micro vacuum pump via a vacuum pumping tube, and the micro vacuum pump is electrically connected to a battery; it also includes a pressure sensor for sensing the vacuum degree of the vacuum suction cup, the pressure sensor is electrically connected to the battery and a main controller, and the micro vacuum pump is electrically connected to the main controller; it is characterized in that: The vacuum suction cup is made of hard material, and a protruding flexible sealing ring is fixed on the end face of the vacuum suction cup; the vacuum pipe is connected with a pressing valve switch for letting in air to make the vacuum suction cup detach from the glass.

2. The handheld glass-wiping device according to claim 1, characterized in that: The operating rod is composed of multiple hollow circular tubes that are detachably connected end to end; a micro vacuum pump, a pressure sensor, a main controller and a battery are all installed in one of the operating rods, and the operating rod includes a tube body and a cover body that is detachably connected to the tube body and constitutes a first hollow circular tube. The air inlet of the micro vacuum pump is connected to the vacuum suction cup through a vacuum pumping tube, and the exhaust port of the micro vacuum pump is located in this section of the operating rod. One end of the air inlet pipe connected in series with a push switch is connected to the vacuum pumping pipe, and the other end of the air inlet pipe is located in this section of the operating rod.

3. The handheld glass-wiping device according to claim 2, characterized in that: The operating rod is provided with a button start switch and a button stop switch which are placed in the first hollow circular tube and pass through the tube wall hole for pressing the micro vacuum pump. The button start switch and the button stop switch are electrically connected to the battery and the micro vacuum pump respectively through wires.

4. The handheld glass-wiping device according to claim 2, characterized in that: The vacuum tube placed in the first hollow circular tube formed by the tube body and the detachable cover body and connected to the air inlet of the micro vacuum pump is connected to the vacuum tube in the second hollow circular tube of the front section via an air pipe interface of a quick connector. The other air pipe interface of the quick connector is connected to the vacuum tube in the second hollow circular tube of the front section. The vacuum tube in the second hollow circular tube of the front section passes through the remaining second hollow circular tubes and is connected to the vacuum nozzle of the vacuum suction cup.

5. The handheld glass-wiping device according to claim 1, characterized in that: The operating rod is formed by connecting multiple hollow circular tubes detachably from end to end, wherein one section of the operating rod includes a tube body and a cover body detachably connected to the tube body and constituting a first hollow circular tube; the handheld glass wiping device also includes a micro water pump installed in the first hollow circular tube, the micro water pump is electrically connected to a battery and a power button switch via a wire, the water inlet of the micro water pump is connected to a water storage container via a water pipe, and the water outlet of the micro water pump is connected to a nozzle arranged at the front end of the operating rod via a water pipe.

6. The handheld glass-wiping device according to claim 5, characterized in that: The power button switch is an elastic press power switch which is pressed to connect the power supply so that the micro water pump starts and sprays water through the nozzle, and is released to disconnect the power supply so that the micro water pump stops rotating and the nozzle stops spraying water.

7. The handheld glass-wiping device according to claim 5, characterized in that: The water storage container is a water storage cylinder screwed on the tail end of the operating rod, and the water storage cylinder is connected with the water inlet of the micro water pump through a water pipe.

8. The handheld glass-wiping device according to claim 5, characterized in that: The water pipe placed in the first hollow circular tube formed by the tube body and the detachable cover body and connected to the water outlet of the micro water pump is connected to the water pipe in the second hollow circular tube of the front section through a quick-connect joint, and the water pipe in the second hollow circular tube of the front section is connected to the water inlet joint of the nozzle arranged at the front end of the operating rod.

9. The handheld glass-wiping device according to claim 1, characterized in that: The scraper strip is connected to a side of the box body close to the glass by a clamping structure with upper and lower movable gaps, and two ends of a plurality of compression springs are respectively against the scraper strip and the box body.

10. The handheld glass-wiping device according to claim 1, characterized in that: The front end of the first section of the operating rod is hinged to the side of the box body away from the glass, and the rear end of the first section of the operating rod is connected to the second section of the operating rod through a rotating head that can be limited at any angle.

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