A pair of roller clamping mechanism, exterior wall cleaning machine fixing device and exterior wall cleaning machine

Abstract

The present invention first proposes a roller clamping mechanism, comprising: a first rotating shaft, on which two curved slide grooves are arranged, and the curved slide grooves are spirally wound on the outer peripheral wall of the first rotating shaft along the axial direction of the first rotating shaft; a guide rod, the guide rod is parallel to the first rotating shaft, and the guide rod is provided with two moving blocks, the moving blocks are slidably matched with the guide rod, the moving blocks correspond to the curved slide grooves one by one, and the moving blocks are slidably matched with the curved slide grooves; a roller mounting frame, the roller mounting frame corresponds to the moving blocks one by one, each of the roller mounting frames is provided with at least one roller, and the roller mounting frame moves synchronously with the corresponding moving block; a first driving mechanism, the first driving mechanism is used to drive the first rotating shaft to rotate. It has a high safety factor and high cleaning efficiency, and will not leave stains on the glass wall. The present invention also proposes a fixing device for an exterior wall cleaning machine and an exterior wall cleaning machine.

Description

Technical Field

[0001] The present invention relates to the technical field of exterior wall cleaning equipment, and in particular to a pair of roller clamping mechanisms, an exterior wall cleaning machine fixing device and an exterior wall cleaning machine. Background Art

[0002] The glass of the exposed frame glass curtain wall is inlaid in the aluminum frame, forming a curtain wall component with aluminum frames on four sides. The curtain wall components are inlaid on the beams and columns, forming a facade with exposed beams and columns and obvious aluminum frame divisions. The exposed frame glass curtain wall is the most traditional form, the most widely used, and has reliable working performance. Compared with the hidden frame glass curtain wall, it is easier to meet the construction technology level requirements.

[0003] At present, there are many cleaning robots designed for the exterior walls of concealed frame glass curtain walls, and most of them adopt the adsorption method. The adsorption method has a wide range of applicability and is easier to combine obstacle crossing and movement. However, the disadvantages of the adsorption method are as follows: if you need to ensure stable adsorption, you must use a large suction cylinder or add more suction cups, both of which will undoubtedly increase the total mass of the cleaning robot. At the same time, the suction cup will leave obvious footprints on the glass that has just been cleaned and is not yet dry or even on the dried glass, resulting in the glass not being cleaned thoroughly enough.

[0004] The cleaning work of exposed frame glass curtain walls is generally done manually, which is difficult and has a high risk factor.

[0005] Therefore, existing exterior wall cleaning technology and cleaning equipment still need to be improved. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a roller clamping mechanism, an exterior wall cleaning machine fixing device and an exterior wall cleaning machine, which have a high safety factor and a high cleaning efficiency and will not leave stains on the glass wall.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention first proposes a roller clamping mechanism, comprising:

[0009] A first rotating shaft, wherein two curved sliding grooves are provided on the first rotating shaft, and the curved sliding grooves are spirally wound on the outer peripheral wall of the first rotating shaft along the axial direction of the first rotating shaft;

[0010] A guide rod, wherein the guide rod is parallel to the first rotating shaft, and two moving blocks are arranged on the guide rod, wherein the moving blocks are slidably matched with the guide rod, and the moving blocks correspond to the curved sliding groove one by one and the moving blocks are slidably matched with the curved sliding groove;

[0011] Roller mounting frames, each of which corresponds to the moving block, each of which is provided with at least one roller, and the roller mounting frames move synchronously with the corresponding moving block;

[0012] A first driving mechanism, wherein the first driving mechanism is used to drive the first rotating shaft to rotate.

[0013] Furthermore, the first driving mechanism includes a first driving gear and a first driving motor, the output shaft of the first driving motor is drivingly connected to the first driving gear, the first rotating shaft is provided with gear teeth meshing with the first driving gear, or the first rotating shaft is provided with a driven gear meshing with the first driving gear.

[0014] Furthermore, two roller mounting shafts are provided at the lower end of the roller mounting frame, and each of the roller mounting shafts is provided with a roller.

[0015] Furthermore, the upper end of the roller mounting frame is sleeved on the first rotating shaft, and the upper end of the roller mounting frame is slidably matched with the first rotating shaft.

[0016] Furthermore, it also includes a first mounting seat, two ends of the first rotating shaft are rotatably matched with the first mounting seat, and two ends of the guide rod are connected to the first mounting seat.

[0017] The present invention also proposes a fixing device for an exterior wall cleaning machine, comprising a rectangular mounting frame, wherein the four corners of the rectangular mounting frame are provided with a pair of roller clamping mechanisms as described in any of the above items, the rectangular mounting frame is provided with a second driving mechanism for independently driving each of the pair of roller clamping mechanisms to move in a direction perpendicular to the exterior wall, and the top rod of the rectangular mounting frame is provided with a clamping and fixing mechanism for clamping and fixing on the outer frame of the exposed frame glass curtain wall.

[0018] Furthermore, the roller clamping mechanism and the second driving mechanism are provided on both side rods of the rectangular mounting frame.

[0019] Further, the second driving mechanism comprises a second driving motor, a second driving gear, a moving rack and a moving guide rail, the output shaft of the second driving motor is drivingly connected with the second driving gear, the moving guide rail is arranged in a direction perpendicular to the outer wall, the moving rack and the moving guide rail are parallel to each other and the moving rack can move linearly in a direction perpendicular to the outer wall;

[0020] The second driving gear is meshed with the moving rack, the moving guide rail is provided with a moving slider which is slidably matched with the moving rack, and the first mounting seat moves synchronously with the moving rack.

[0021] Furthermore, the second driving mechanism also includes a second mounting seat, on which a second rotating shaft and a third rotating shaft parallel to each other are provided, the second driving gear is mounted on the second rotating shaft, the third rotating shaft is provided with a guide groove for guiding the movable rack, and the back of the movable rack is provided with a guide portion matching the guide groove.

[0022] Furthermore, the clamping and fixing mechanism is provided on both the top rod and the bottom rod of the rectangular mounting frame.

[0023] Further, the clamping and fixing mechanism comprises a clamping base, a first clamping arm, a second clamping arm and a third driving mechanism, a first connecting rod and a second connecting rod parallel to each other are arranged between the clamping base and the first clamping arm, and a third connecting rod and a fourth connecting rod parallel to each other are arranged between the clamping base and the second clamping arm;

[0024] The two ends of the first connecting rod and the second connecting rod are respectively hinged to the clamping base and the first clamping arm, and the two ends of the third connecting rod and the fourth connecting rod are respectively hinged to the clamping base and the first clamping arm;

[0025] The third driving mechanism includes a worm wheel, a worm and a third driving motor. The output shaft of the third driving motor is drivingly connected to the worm. The hinged ends of the first connecting rod and the third connecting rod and the clamping base are respectively provided with mutually meshing gear teeth. The gear teeth on the first connecting rod rotate synchronously with the worm wheel.

[0026] Furthermore, it also includes a wall-adhering mechanism for driving the rectangular mounting frame to adhere to the wall;

[0027] The wall-adhering mechanism includes a counterweight and a spacing adjustment bracket, the spacing adjustment bracket includes a telescopic frame mounting frame, telescopic frames are respectively provided on both sides of the telescopic frame mounting frame, the counterweight is arranged on the telescopic frame located on the outside, and the rectangular mounting frame is arranged on the telescopic frame located on the inside.

[0028] The present invention also provides an exterior wall cleaning machine, comprising the exterior wall cleaning machine fixing device as described in any one of the above items.

[0029] The beneficial effects of the present invention are:

[0030] The roller clamping mechanism of the present invention drives the first rotating shaft to rotate through the first driving mechanism, and under the action of the curved slide groove on the rotating shaft, drives the two moving blocks that slide with the curved slide groove to move closer to or away from each other, thereby adjusting the distance between the corresponding roller mounting frame and the roller that moves synchronously with it, thereby achieving the technical purpose of clamping or loosening the roller.

[0031] The fixing device of the exterior wall cleaning machine of the present invention is provided with the above-mentioned pair of roller clamping mechanisms at the four corners of the rectangular mounting frame. Through the combined action of the pair of roller clamping mechanisms and the clamping and fixing mechanisms, the fixing device can be fixed on the outer frame of the hidden frame glass curtain wall. When moving, the two pair of roller clamping mechanisms at the lower ends first loosen the roller wheels, and drive the two pair of roller clamping mechanisms at the lower ends to move in a direction perpendicular to the wall outwards through the second driving mechanism, and make the clamping and fixing mechanisms loosen the outer frame of the hidden frame glass curtain wall, and the hoisting machine at the roof lowers the sling, and the roller wheels of the two pair of roller clamping mechanisms at the upper ends play a guiding role, so that the device moves linearly as a whole. After the two pair of roller clamping mechanisms at the lower ends successfully overcome the obstacles, the two pair of roller clamping mechanisms at the lower ends are driven by the second driving mechanism to move in a direction perpendicular to the wall inwards. After completion, the two pair of roller clamping mechanisms at the lower ends clamp the roller wheels and continue to move downwards. When the two pair of roller clamping mechanisms at the upper ends reach the intersection of the frames, the principle is the same as above and will not be repeated.

[0032] The exterior wall cleaning machine of the present invention utilizes the exterior wall cleaning machine fixing device to carry the cleaning equipment, has high cleaning efficiency, and does not leave stains on the exterior wall glass.

[0033] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0035] Figure 1a It is a schematic diagram of an embodiment of a roller clamping mechanism in the present invention;

[0036] Figure 1b It is a front view of an embodiment of the roller clamping mechanism of the present invention;

[0037] Figure 2 It is a schematic diagram of an embodiment of the fixing device of the exterior wall cleaning machine of the present invention (the wall-attaching mechanism is hidden);

[0038] Figure 3 A top view of an embodiment of the fixing device for an exterior wall cleaning machine of the present invention (the wall-attaching mechanism is hidden);

[0039] Figure 4 It is a front view of an embodiment of the fixing device of the exterior wall cleaning machine of the present invention (the wall-attaching mechanism is hidden);

[0040] Figure 5 for Figure 4A is an enlarged schematic diagram;

[0041] Figure 6 for Figure 5 A top view of

[0042] Figure 7 It is a schematic diagram of an embodiment of a fixing device for an exterior wall cleaning machine in the present invention;

[0043] Figure 8 It is a schematic diagram of an embodiment of a fixing device for an exterior wall cleaning machine in the present invention;

[0044] Fig. 9 It is a working schematic diagram of the fixing device of the exterior wall cleaning machine in the present invention (the wall-adhering mechanism is hidden).

[0045] Description of reference numerals:

[0046] 1-first rotating shaft; 101-curved slide; 2-guide rod; 3-moving block; 301-slider; 4-roller mounting frame; 401-roller mounting shaft; 5-roller; 6-first driving gear; 7-first mounting seat; 701-gear mounting seat; 8-rectangular mounting frame; 9-second driving gear; 10-moving rack; 11-moving guide rail; 12-moving slider; 13-second mounting seat; 14-second rotating shaft; 15-third rotating shaft; 16-guide groove; 17-clamping base; 18-first clamping arm; 19-second clamping arm; 20-first connecting rod; 21-second connecting rod; 22-third connecting rod; 23-fourth connecting rod; 24-worm wheel; 25-worm; 26-third mounting seat; 27-fourth rotating shaft; 28-counterweight block; 29-telescopic frame mounting frame; 30-telescopic frame; 31-connecting column; 32-hanging ring. DETAILED DESCRIPTION

[0047] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0048] Example 1 - Roller clamping mechanism

[0049] like Figure 1a , which is a schematic diagram of the roller clamping mechanism of this embodiment. The roller clamping mechanism of this embodiment includes:

[0050] A first rotating shaft 1, on which two curved slide grooves 101 are arranged, and the curved slide grooves 101 are spirally wound on the outer peripheral wall of the first rotating shaft 1 along the axial direction of the first rotating shaft 1;

[0051] The guide rod 2 is parallel to the first rotating shaft 1. Two moving blocks 3 are arranged on the guide rod 2. The moving blocks 3 are slidably matched with the guide rod 2. The moving blocks 3 correspond to the curved slide groove 101 one by one and the moving blocks 3 are slidably matched with the curved slide groove 101. In this embodiment, a slider 301 is arranged on the moving block 3. The slider 301 is slidably matched with the curved slide groove 101.

[0052] Roller mounting frame 4, roller mounting frame 4 and moving block 3 correspond one to one, each roller mounting frame 4 is provided with at least one roller 5, in this embodiment, the outer wall of roller 5 is provided with a buffer soft sleeve, roller mounting frame 4 moves synchronously with corresponding moving block 3, specifically, as Figure 1a As shown in , in this embodiment, the roller mounting frame 4 is welded to the moving block 3, and two roller mounting shafts 401 are provided at the lower end of the roller mounting frame 4, and each roller mounting shaft 401 is provided with a roller 5, that is, two rollers 5 are provided on each roller mounting frame 4, which can play a more stable clamping role and maintain better movement stability;

[0053] The first driving mechanism is used to drive the first rotating shaft 1 to rotate. Specifically, in this embodiment, the first driving mechanism includes a first driving gear 6 and a first driving motor. The output shaft of the first driving motor is in driving connection with the first driving gear 6. The first rotating shaft 1 is provided with gear teeth meshing with the first driving gear 6. That is, in this embodiment, the first rotating shaft 1 is a gear shaft with gear teeth in the middle. Of course, in some embodiments, a driven gear meshing with the first driving gear 6 can also be provided on the first rotating shaft 1.

[0054] like Figure 1a and 1b As shown in , the upper end of the roller mounting frame 4 of this embodiment is mounted on the first rotating shaft 1, and the upper end of the roller mounting frame 4 is slidably matched with the first rotating shaft 1. Specifically, the first rotating shaft 1 of this embodiment is a stepped shaft with small ends and a large middle. The upper ends of the two roller mounting frames 4 are respectively mounted on the two ends of the first rotating shaft 1, which can play a fixing and guiding role for the roller mounting frames 4 and can make their movement more stable and smooth.

[0055] like Figure 1a As shown in , the roller clamping mechanism of this embodiment further includes a first mounting seat 7, both ends of the first rotating shaft 1 are rotatably matched with the first mounting seat 7, and both ends of the guide rod 2 are connected to the first mounting seat 7. In this embodiment, bearings are provided on both sides of the first mounting seat 7, and both ends of the first rotating shaft 1 are respectively matched with the inner rings of the two bearings, and a gear mounting seat 701 is provided in the first mounting seat 7, and both ends of the gear mounting seat 701 are provided with bearings, and both ends of the rotating shaft for mounting the first driving gear 6 are respectively matched with the inner rings of the two bearings.

[0056] The roller clamping mechanism of this embodiment drives the first rotating shaft 1 to rotate by the first driving motor. When the first rotating shaft 1 rotates, the two curved slide grooves 101 respectively drive the two moving blocks 3 to move toward each other (clamp) or move away from each other (loosen), and the two moving blocks 3 then respectively drive the two roller mounting frames 4 and the rollers 5 arranged thereon to move toward each other (clamp) or move away from each other (loose), thereby achieving the technical purpose of the rollers 5 on both sides clamping or loosening the frame of the exposed frame glass curtain wall.

[0057] Embodiment 2 - External wall cleaning machine fixing device

[0058] like Figure 2-4 As shown in the figure, they are respectively a schematic diagram, a top view and a front view of the fixing device of the exterior wall cleaning machine of this embodiment. The fixing device of the exterior wall cleaning machine of this embodiment comprises a rectangular mounting frame 8, and the four corners of the rectangular mounting frame 8 are provided with a pair of roller clamping mechanisms as described in Example 1, and the rectangular mounting frame 8 is provided with a second driving mechanism for independently driving each pair of roller clamping mechanisms to move in a direction perpendicular to the exterior wall, and the top rod of the rectangular mounting frame 8 is provided with a clamping and fixing mechanism for clamping and fixing on the outer frame of the exposed frame glass curtain wall. In this embodiment, the middle part of the two side rods of the rectangular mounting frame 8 is provided with a pair of roller clamping mechanisms and a second driving mechanism for auxiliary clamping and guiding.

[0059] like Figure 5 and Figure 6 As shown in, in this embodiment, the second driving mechanism includes a second driving motor, a second driving gear 9, a moving rack 10 and a moving guide rail 11, the output shaft of the second driving motor is connected to the second driving gear 9 in a transmission manner, the moving guide rail 11 is arranged in a direction perpendicular to the outer wall, the moving rack 10 and the moving guide rail 11 are parallel to each other and the moving rack can move linearly in a direction perpendicular to the outer wall, the second driving gear 9 is meshed with the moving rack 10, the moving guide rail 11 is provided with a moving slider 12 that slides with it, the first mounting seat 7 moves synchronously with the moving rack 10, in this embodiment, the upper end of the first mounting seat 7 is welded to the lower end of the moving rack 10. In this embodiment, the second driving mechanism also includes a second mounting seat 13, the second mounting seat 13 is provided with a second rotating shaft 14 and a third rotating shaft 15 that are parallel to each other, the second driving gear 9 is mounted on the second rotating shaft 14, the third rotating shaft 15 is provided with a guide groove 16 for guiding the moving rack 10, and the back of the moving rack 10 is provided with a guide portion matching the guide groove 16. Specifically, in this embodiment, two pairs of bearings are disposed on the second mounting seat 13 , and both ends of the second rotating shaft 14 and the third rotating shaft 15 are respectively matched with the inner rings of the two pairs of bearings to achieve a better rotation effect.

[0060] The second drive motor drives the second drive gear 9 to rotate, and the movable rack 10 can move inward or outward in a direction perpendicular to the outer wall under the driving action of the gear, driving the first mounting seat 7 to move synchronously with the movable rack 10, thereby achieving the technical purpose of adjusting the position of the roller clamping mechanism, which is convenient for obstacle avoidance (the intersection of the glass frame).

[0061] like Figure 2-4 As shown in , in this embodiment, a clamping and fixing mechanism is provided on both the top rod and the bottom rod of the rectangular mounting frame 8. By providing the upper and lower clamping and fixing mechanisms, the overall fixation of the device can be made more stable.

[0062] Specifically, Figure 7 As shown in, the clamping and fixing mechanism of this embodiment includes a clamping base frame 17, a first clamping arm 18, a second clamping arm 19 and a third driving mechanism, a first connecting rod 20 and a second connecting rod 21 parallel to each other are provided between the clamping base frame 17 and the first clamping arm 18, and a third connecting rod 22 and a fourth connecting rod 23 parallel to each other are provided between the clamping base frame 17 and the second clamping arm 19; the two ends of the first connecting rod 20 and the second connecting rod 21 are respectively hinged to the clamping base frame 17 and the first clamping arm 18, and the two ends of the third connecting rod 22 and the fourth connecting rod 23 are respectively hinged to the clamping base frame 17 and the first clamping arm 18; the third driving mechanism includes a worm wheel 24, a worm 25 and a third driving motor for driving the worm 25 to rotate, and the hinged ends of the first connecting rod 20, the fourth connecting rod 2322 and the clamping base frame 17 are respectively provided with mutually meshing gear teeth, and the gear teeth located on the first connecting rod 20 rotate synchronously with the worm wheel 24. In this embodiment, the clamping and fixing mechanism also includes a third mounting seat 26, and a fourth rotating shaft 27 is provided between the third mounting seat 26 and the clamping base frame 17. The worm gear 24 and one end of the first connecting rod 20 are both mounted on the fourth rotating shaft 27, and both ends of the worm 25 are rotatably matched with the third mounting seat 26.

[0063] The third driving motor drives the worm 25 to rotate, and the worm 25 drives the worm wheel 24 to rotate. One end of the first connecting rod 20 rotates synchronously with the worm wheel 24. Under the meshing action of the gear teeth at one end of the fourth connecting rod 2322 of the first connecting rod 20, and with the assistance of the second connecting rod 21 and the fourth connecting rod 23, the first clamping arm 18 and the second clamping arm 19 perform a clamping or loosening action, and after the first clamping arm 18 and the second clamping arm 19 are loosened, the ends of the two will move a distance toward the direction of the principle exterior wall panel, and will not interfere with the glass frame during the overall movement of the device.

[0064] Since the top floors of some buildings are provided with flange structures protruding outward, the rectangular mounting frame cannot be hoisted close to and attached to the outer wall by the hoisting rope. Therefore, the exterior wall cleaning machine fixing device of this embodiment further includes a wall-attaching mechanism for driving the rectangular mounting frame to attach to the wall;

[0065] like Figure 8As shown in the figure, the wall-adhering mechanism of this embodiment includes a counterweight block 28 and a spacing adjustment bracket, the spacing adjustment bracket includes a telescopic frame mounting frame 29, and telescopic frames 30 are respectively provided on both sides of the telescopic frame mounting frame 29. The counterweight block 28 is arranged on the telescopic frame 30 located on the outside, and the rectangular mounting frame 8 is arranged on the telescopic frame 30 located on the inside.

[0066] Specifically, in the present embodiment, four connecting columns 31 for connecting with the telescopic frame 30 are provided at the four corners of the rectangular mounting frame 8. In the present embodiment, the connecting columns 31 and the telescopic frame 30 are connected by welding. In the present embodiment, the two telescopic frames 30 are electric telescopic frames, which are driven by a lead screw, a screw sleeve and a motor to expand or contract. In the present embodiment, a hanging ring 32 is provided at the top of the spacing adjustment bracket, which is connected to the hanging ring by a hook at the bottom of the sling, and is easy to operate. In the present embodiment, the counterweight block 28 is set as a hollow box-mounted structure, in which various electrical components can be installed and the weight of the electrical components can be used for counterweighting.

[0067] like Figure 8 and Fig. 9 As shown in , the working process of the exterior wall cleaning machine fixing device of this embodiment is as follows:

[0068] First, the device is hoisted as a whole by a hoisting machine, and is brought to the designated working position by the hoisting machine, and is fixed by the action of each roller clamping mechanism and the upper and lower clamping and fixing mechanisms. After the cleaning work of the glass plate is completed, the device needs to be moved downward as a whole to the next glass plate for cleaning. During the movement, the two roller clamping mechanisms at the lower end first release the rollers 5, and the two roller clamping mechanisms at the lower end are driven by the second driving mechanism to move in a direction perpendicular to the wall and outward, and the clamping and fixing mechanisms are released. The outer frame of the frame glass curtain wall, the hoisting machine on the roof lowers the sling, and the rollers 5 of the four roller clamping mechanisms at the upper and middle parts play a guiding role, so that the device as a whole moves linearly downward. After the two roller clamping mechanisms at the lower end successfully cross the obstacle (the intersection of the glass frame), the two roller clamping mechanisms at the lower end are driven by the second driving mechanism to move inward in a direction perpendicular to the wall. After completion, the two roller clamping mechanisms at the lower end clamp the rollers 5 and continue to move downward. When the four roller clamping mechanisms in the middle and upper parts reach the intersection of the frames, the principle is the same as above and will not be repeated.

[0069] When working on some buildings with a flange structure protruding outward on the top floor, first use a hoist to hoist the entire device, and under the action of the hoist, it is brought to the designated working position, and the telescopic frame is used to drive the rectangular mounting frame 8 to move toward the wall and make the roller clamping mechanism and the clamping fixing mechanism reach the set position. Under the action of the counterweight block 28, the telescopic frame mounting frame 29 and the two telescopic frames 30 in the wall-attaching mechanism will be further offset toward the outer wall. After the operation is completed, the telescopic frame can be driven to retract.

[0070] The exterior wall cleaning machine fixing device of this embodiment has the following advantages:

[0071] 1. The drive is motor-driven, and the whole machine moves by lifting from the roof, which has a high safety factor;

[0072] 2. The cleaning degree is higher than that of the suction cup type, and it will not leave stains on the glass wall;

[0073] 3. The device is suitable for the most widely used exposed frame glass curtain wall.

[0074] Example 3 - External wall cleaning machine

[0075] This embodiment provides an exterior wall cleaning machine, including the exterior wall cleaning machine fixing device as described in Embodiment 2. A cleaning mechanism can be arranged on the fixing device, and when cleaning an exposed frame glass exterior wall, there is no need to use a suction cup to fix it, and no moving track of the suction cup is left during cleaning, so that the cleaning is cleaner and more thorough.

[0076] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A fixing device for an exterior wall cleaning machine, characterized in that: It comprises a rectangular mounting frame, wherein roller clamping mechanisms are arranged at the four corners of the rectangular mounting frame, a second driving mechanism is arranged on the rectangular mounting frame for independently driving each roller clamping mechanism to move in a direction perpendicular to the outer wall, a clamping and fixing mechanism for clamping and fixing on the outer frame of the exposed frame glass curtain wall is arranged on the top rod and the bottom rod of the rectangular mounting frame; the roller clamping mechanism and the second driving mechanism are arranged on the two side rods of the rectangular mounting frame; The roller clamping mechanism comprises: a first rotating shaft, two curved slide grooves are provided on the first rotating shaft, and the curved slide grooves are spirally wound on the outer peripheral wall of the first rotating shaft along the axial direction of the first rotating shaft; a guide rod, the guide rod and the first rotating shaft are parallel to each other and two moving blocks are provided on the guide rod, the moving blocks are slidably matched with the guide rod, the moving blocks correspond to the curved slide grooves one by one and the moving blocks are slidably matched with the curved slide grooves; a roller mounting frame, the roller mounting frame corresponds to the moving blocks one by one, each of the roller mounting frames is provided with at least one roller, and the roller mounting frame moves synchronously with the corresponding moving block; a first driving mechanism, the first driving mechanism is used to drive the first rotating shaft to rotate; The second driving mechanism includes a second driving motor, a second driving gear, a moving rack and a moving guide rail. The output shaft of the second driving motor is drivingly connected to the second driving gear. The moving guide rail is arranged in a direction perpendicular to the outer wall. The moving rack and the moving guide rail are parallel to each other and the moving rack can move linearly in a direction perpendicular to the outer wall. The second driving gear is meshed with the moving rack. The moving guide rail is provided with a moving slider that slides with it, and the first mounting seat moves synchronously with the moving rack.

2. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: The first driving mechanism includes a first driving gear and a first driving motor, the output shaft of the first driving motor is drivingly connected to the first driving gear, the first rotating shaft is provided with gear teeth meshing with the first driving gear, or the first rotating shaft is provided with a driven gear meshing with the first driving gear.

3. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: Two roller mounting shafts are arranged at the lower end of the roller mounting frame, and each roller mounting shaft is arranged with a roller.

4. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: The upper end of the roller mounting frame is sleeved on the first rotating shaft, and the upper end of the roller mounting frame is slidably matched with the first rotating shaft.

5. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: It also includes a first mounting seat, two ends of the first rotating shaft are rotatably matched with the first mounting seat, and two ends of the guide rod are connected to the first mounting seat.

6. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: The second driving mechanism also includes a second mounting seat, on which a second rotating shaft and a third rotating shaft parallel to each other are provided, the second driving gear is mounted on the second rotating shaft, the third rotating shaft is provided with a guide groove for guiding the moving rack, and the back of the moving rack is provided with a guide portion matching the guide groove.

7. The fixing device for the exterior wall cleaning machine according to claim 1, characterized in that: The clamping and fixing mechanism comprises a clamping base, a first clamping arm, a second clamping arm and a third driving mechanism, a first connecting rod and a second connecting rod parallel to each other are arranged between the clamping base and the first clamping arm, and a third connecting rod and a fourth connecting rod parallel to each other are arranged between the clamping base and the second clamping arm; The two ends of the first connecting rod and the second connecting rod are respectively hinged to the clamping base and the first clamping arm, and the two ends of the third connecting rod and the fourth connecting rod are respectively hinged to the clamping base and the first clamping arm; The third driving mechanism includes a worm wheel, a worm and a third driving motor. The output shaft of the third driving motor is drivingly connected to the worm. The hinged ends of the first connecting rod and the third connecting rod and the clamping base are respectively provided with mutually meshing gear teeth. The gear teeth on the first connecting rod rotate synchronously with the worm wheel.

8. The fixing device for the exterior wall cleaning machine according to any one of claims 1 to 7, characterized in that: Also included is a wall-adhering mechanism for driving the rectangular mounting frame to adhere to the wall; The wall-adhering mechanism includes a counterweight and a spacing adjustment bracket, the spacing adjustment bracket includes a telescopic frame mounting frame, telescopic frames are respectively provided on both sides of the telescopic frame mounting frame, the counterweight is arranged on the telescopic frame located on the outside, and the rectangular mounting frame is arranged on the telescopic frame located on the inside.

9. An exterior wall cleaning machine, characterized in that: It comprises the exterior wall cleaning machine fixing device as described in any one of claims 1-8.

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