Building outer wall water blocking structure and construction method thereof

Abstract

The invention provides a building outer wall water blocking structure and a construction method thereof, and belongs to the field of building construction. Comprising waterproof cloth and a fixed shell, the fixed shell and two movable shells are arranged on the upper side of the waterproof cloth, a winding motor is fixedly connected to the movable shell on the left side, a movable shaft is fixedly connected to the winding motor, the movable shaft is sleeved with a movable sleeve, and a plurality of through holes are formed in the movable shaft and the movable sleeve; a connecting ring connected with the waterproof cloth is arranged in the through hole in a sleeved mode. The fixing shell is placed at the position between two columns or structures of a building outer wall, the locking motor drives the rotating plate to rotate, the rotating plate pushes the push plates on the two sides, the push plates drive the cross rod to move, the cross rod drives the clamping plates to move through the round sleeve, and the clamping plates on the two sides abut against the position between the two columns or structures of the building outer wall; the water blocking structure and the building structure are fixedly installed, and the stability and convenience of installation of the water blocking structure are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a water-blocking structure for building exterior walls and a construction method thereof. Background Art

[0002] During the construction process of building projects, the importance of exterior wall waterproofing treatment cannot be underestimated, which is related to all aspects of the building. From the perspective of durability, if the exterior wall is eroded by rainwater for a long time, the wall materials will gradually be corroded, resulting in a significant reduction in the service life of the building; in terms of structural stability, the infiltration of water may cause deformation of the internal structure of the wall, threatening the safety of the overall building.

[0003] Currently, traditional water-blocking structures for building exterior walls are usually customized for specific building designs, with fixed sizes and difficult to adapt to exterior wall structures of different widths. This leads to the need to frequently replace water-blocking structures of different specifications when facing diverse building exterior wall designs, greatly increasing the construction cost and time cost, and having poor versatility. At the same time, there are also many inconveniences in the installation and disassembly of existing exterior wall water-blocking structures. The complex installation process often requires professional construction personnel to spend a lot of time operating, and during the maintenance or replacement of the water-blocking structure, the disassembly process is also cumbersome, seriously affecting the construction efficiency and being unfavorable for the efficient progress of building projects.

[0004] For the above reasons, the present invention proposes a water-blocking structure for building exterior walls and a construction method thereof to be used for water-blocking of exterior wall structures of different widths, and at the same time have the functions of convenient installation and disassembly, improving the construction efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a water-blocking structure for building exterior walls and a construction method thereof, which have the advantages of good adaptability and being convenient for installation and disassembly.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A water-blocking structure for building exterior walls includes a waterproof cloth. A fixed shell and two movable shells are arranged on the upper side of the waterproof cloth. A winding motor is fixedly connected to the left movable shell. A movable shaft is fixedly connected to the winding motor. A movable sleeve is sleeved on the movable shaft. A plurality of through holes are formed in the movable shaft and the movable sleeve. Connecting rings connected to the waterproof cloth are sleeved in the through holes. A spacing adjusting component is arranged on the top surface of the fixed shell. A locking component is arranged on the rear side wall of the fixed shell. The lower side of the waterproof cloth is connected with a traction unfolding component through a connecting hook.

[0008] Preferably, the spacing adjustment assembly includes a top plate fixedly connected to the center of the top surface of the fixed housing. A double-headed motor is fixedly connected to the top plate. Two rotating shafts are fixedly connected to the double-headed motor. First gears are fixedly connected to the rotating shafts. Second gears are engaged with the lower sides of the first gears. Threaded rods are fixedly connected to the second gears. One end of each threaded rod is movably connected to the top plate and the other end is threadedly connected to a threaded sleeve. A side plate fixedly connected to the movable housing is fixedly connected to the threaded sleeve.

[0009] Preferably, the locking assembly includes a locking motor fixedly installed at the center of the rear side wall of the fixed housing. A circular shaft is fixedly connected to the rotor of the locking motor. A rotating plate is fixedly connected to the circular shaft. Push plates are arranged on both sides of the rotating plate. Cross bars are fixedly connected to the push plates. A fixing plate is movably connected to the side wall of each cross bar and a first spring is sleeved thereon. Two ends of the first spring are fixedly connected to the fixing plate and the push plate respectively. The fixing plate is fixedly connected to the fixed housing. A circular sleeve is threadedly connected to one end of the cross bar away from the push plate. A clamping plate is fixedly connected to the circular sleeve.

[0010] Preferably, the traction and deployment assembly includes a bottom shell. Two L-shaped movable plates are symmetrically and movably connected inside the bottom shell. A plurality of mounting holes are formed in both the movable plates and the bottom shell. The connecting hook is threadedly connected to the mounting holes. Two fixing rods are fixedly connected inside the bottom shell. Two ends of each fixing rod are respectively inserted into the movable plates on both sides and a third spring is fixedly connected thereto. The third spring is fixedly connected to the movable plate.

[0011] Preferably, an annular plate matching the movable sleeve is fixedly connected to the side wall of the right movable housing. A plurality of positioning grooves are formed in the inner side wall of the annular plate. A side groove is formed at the right end of the movable sleeve. A second spring is arranged in the side groove. Two ends of the second spring are fixedly connected to a positioning rod. One end of the positioning rod away from the second spring extends out of the side groove and is inserted into the positioning groove.

[0012] Preferably, the inner wall of the movable sleeve is arranged in a regular hexagon shape. The movable shaft is in a regular hexagon shape and is arranged to match the inner wall of the movable sleeve.

[0013] Preferably, a positioning bolt is threadedly connected to the side wall of the circular sleeve. The positioning bolt penetrates through the side wall of the circular sleeve and abuts against the outer wall of the cross bar.

[0014] Preferably, a counterweight shell is fixedly connected to the bottom surface of the bottom shell. The front side wall of the counterweight shell is not closed.

[0015] A construction method for a water-blocking structure of a building exterior wall includes the following steps:

[0016] S1: Adjust the water-blocking structure according to the length and width of the building exterior wall that needs water-blocking. Start the double-headed motor. The double-headed motor drives the first gear to rotate through the rotating shaft. The first gear meshes with the second gear to rotate, and the second gear drives the threaded rod to rotate. The threaded rod and the threaded sleeve mesh and rotate, so that the movable shells on both sides continuously extend out of the fixed shell. When the distance between the movable shells on both sides meets the specifications of the building exterior wall, stop the rotation of the double-headed motor;

[0017] S2: Then select a waterproof cloth of a specified specification, and install a connecting ring and a connecting hook on both sides of the waterproof cloth respectively. Sleeve the connecting ring into the through holes on the side walls of the movable shaft and the movable sleeve in turn to realize the installation operation of the waterproof cloth inside the fixed shell and the movable shell. And thread the connecting hook into the mounting holes on the bottom shell and the movable plate in turn to realize the traction of one side of the waterproof cloth. And by pushing the fixed rod with the third spring, the movable plates on both sides can unfold the waterproof cloth;

[0018] S3: Place the fixed shell between the two columns or structures of the building exterior wall. Start the locking motor through an external power supply. The locking motor drives the rotating plate to rotate through the round shaft. The rotating plate pushes the push plates on both sides. The push plates drive the cross bar to move and the first spring is compressed. The cross bar drives the clamping plate to move through the round sleeve, so that the clamping plates on both sides are tightly pressed between the two columns or structures of the building exterior wall, and complete the fixed installation between the water-blocking structure and the building structure;

[0019] S4: Start the winding motor. The winding motor drives the movable shaft and the movable sleeve to rotate, so that the waterproof cloth wound on the movable shaft and the movable sleeve is unwound, and continuously covers the building exterior wall structure under the traction of the bottom shell and the movable plate. When the waterproof cloth is completely released, at this time, under the push of the second spring, the positioning rod is inserted into the positioning groove on the inner side wall of the annular plate to realize the positioning of the movable shaft and the movable sleeve, and the water-blocking of the exterior wall structure of the filling can be realized through the waterproof cloth.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] By placing the fixed shell between the two columns or structures of the building exterior wall, and driving the rotating plate to rotate through the locking motor, the rotating plate pushes the push plates on both sides, the push plates drive the cross bar to move, and the cross bar drives the clamping plate to move through the round sleeve, so that the clamping plates on both sides are tightly pressed between the two columns or structures of the building exterior wall, and complete the fixed installation between the water-blocking structure and the building structure, effectively improving the stability and convenience of the installation of the water-blocking structure;

[0022] The present invention drives the first gear to rotate through a double-headed motor. The first gear meshes with the second gear to drive the second gear to rotate. The second gear drives the threaded rod to rotate. The threaded rod and the threaded sleeve mesh and rotate with each other, so that the movable shells on both sides continuously extend out of the fixed shell, and the distance between the movable shells on both sides meets the specifications of the building exterior wall, so as to meet the water blocking operation of different specifications of building exterior walls and improve adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0024] Figure 1 is a front three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a side three-dimensional structural schematic diagram of the present invention;

[0026] Figure 3 is a three-dimensional structural schematic diagram at the fixed shell and the movable shell of the present invention;

[0027] Figure 4 is a three-dimensional structural schematic diagram of the interior of the fixed shell of the present invention;

[0028] Figure 5 is a three-dimensional structural schematic diagram of the spacing adjustment component of the present invention;

[0029] Figure 6 is a three-dimensional structural schematic diagram of the locking component of the present invention;

[0030] Figure 7 is a three-dimensional structural schematic diagram of the traction deployment component of the present invention;

[0031] Figure 8 is a three-dimensional structural schematic diagram of the interior of the bottom shell of the present invention;

[0032] Figure 9 is a three-dimensional structural schematic diagram at the annular plate of the present invention;

[0033] Figure 10 is a three-dimensional structural schematic diagram of the connecting ring of the present invention.

[0034] [Reference Signs]

[0035] 1. Waterproof cloth; 2. Fixed shell; 3. Movable shell; 4. Rewinding motor; 5. Movable shaft; 6. Movable sleeve; 7. Through hole; 8. Connecting ring; 9. Spacing adjustment component; 10. Locking component; 11. Connecting hook; 12. Traction and unfolding component; 13. Top plate; 14. Double-headed motor; 15. Rotating shaft; 16. First gear; 17. Second gear; 18. Threaded rod; 19. Threaded sleeve; 20. Side plate; 21. Locking motor; 22. Round shaft; 23. Rotating plate; 24. Pushing plate; 25. Cross bar; 26. Fixed plate; 27. First spring; 28. Round sleeve; 29. Clamping plate; 30. Bottom shell; 31. Movable plate; 32. Mounting hole; 33. Fixed rod; 34. Third spring; 35. Annular plate; 36. Positioning groove; 37. Second spring; 38. Positioning rod; 39. Positioning bolt; 40. Counterweight shell.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications still fall within the scope of the appended claims. Detailed implementation manners

[0037] The following describes in detail a building exterior wall water blocking structure and its construction method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be pointed out that in the specification, terms such as "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0039] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or property in the singular sense, or can be used to describe a combination of features, structures, or properties in the plural sense. Additionally, the term "based on" can be understood to not necessarily be intended to convey a set of exclusive factors, but rather can alternatively, depending at least in part on the context, allow for the existence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of "on", "above", and "over" in the present disclosure should be construed in the broadest manner such that "on" not only means "directly on" something, but also includes the meaning of being on something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but can also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0041] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be similarly interpreted accordingly.

[0042] As Figures 1-10 shown, an embodiment of the present invention provides a water-blocking structure for a building exterior wall, including a waterproof cloth 1. A fixed shell 2 and two movable shells 3 are arranged on the upper side of the waterproof cloth 1. A winding motor 4 is fixedly connected to the left movable shell 3. A movable shaft 5 is fixedly connected to the winding motor 4. A movable sleeve 6 is sleeved on the movable shaft 5. An annular plate 35 matching the movable sleeve 6 is fixedly connected to the side wall of the right movable shell 3. A plurality of positioning grooves 36 are formed on the inner side wall of the annular plate 35. A side groove is formed at the right end of the movable sleeve 6. A second spring 37 is arranged in the side groove. Both ends of the second spring 37 are fixedly connected with positioning rods 38. One end of the positioning rod 38 away from the second spring 37 extends out of the side groove and is inserted into the positioning groove 36;

[0043] In this technical solution, by driving the movable shaft 5 and the movable sleeve 6 to rotate through the winding motor 4, the waterproof cloth 1 can be conveniently wound and unwound. When the waterproof cloth 1 is completely released, the outer wall structure can be effectively protected from water by the waterproof cloth 1. Moreover, by winding the waterproof cloth 1 through the movable shaft 5 and the movable sleeve 6, the winding and protection of the waterproof cloth 1 can be realized, which is convenient for use and reduces the impact on the waterproof cloth 1, and the use effect is good. And under the push of the second spring 37, the positioning rod 38 is inserted into the positioning groove 36 on the inner side wall of the annular plate 35, so as to position the movable shaft 5 and the movable sleeve 6, and the waterproof cloth 1 is stably positioned, and the use effect is good;

[0044] As Figure 4 shown, further, the inner wall of the movable sleeve 6 is arranged in a regular hexagon, and the movable shaft 5 is in a regular hexagon and is matched with the inner wall of the movable sleeve 6, which can adapt to the adjustment of the distance between the movable shell 3 and the fixed shell 2 and is convenient for realizing the transmission function, so as to facilitate the winding and unwinding operations of the waterproof cloth 1, and the use effect is good;

[0045] As Figure 4 shown, a plurality of through holes 7 are formed on the movable shaft 5 and the movable sleeve 6, and a connecting ring 8 connected to the waterproof cloth 1 is sleeved in the through hole 7, and a connecting hook 11 is installed on the lower side of the waterproof cloth 1;

[0046] In this technical solution, by installing the connecting ring 8 and the connecting hook 11 on both sides of the waterproof cloth 1 respectively, and installing the connecting ring 8 between the movable shaft 5 and the movable sleeve 6, and installing the waterproof cloth 1 on the lower side structure through the connecting hook 11, the replacement and installation operations of the waterproof cloth 1 with different specifications can be conveniently realized, and the versatility is good;

[0047] As Figure 1 and Figure 5 shown, a distance adjustment component 9 is arranged on the top surface of the fixed shell 2. The distance adjustment component 9 includes a top plate 13, the top plate 13 is fixedly connected to the center of the top surface of the fixed shell 2, a double-headed motor 14 is fixedly connected to the top plate 13, two rotating shafts 15 are fixedly connected to the double-headed motor 14, a first gear 16 is fixedly connected to the rotating shaft 15, a second gear 17 is meshed with the lower side of each first gear 16, a threaded rod 18 is fixedly connected to each second gear 17, one end of the threaded rod 18 is movably connected to the top plate 13 and the other end is threadedly connected to a threaded sleeve 19, and a side plate 20 fixedly connected to the movable shell 3 is fixedly connected to the threaded sleeve 19;

[0048] In this technical solution, the double-headed motor 14 drives the first gear 16 to rotate through the rotating shaft 15. The first gear 16 meshes with the second gear 17 to rotate, and the second gear 17 drives the threaded rod 18 to rotate. The threaded rod 18 and the threaded sleeve 19 rotate meshingly, so that the movable shells 3 on both sides continuously extend out of the fixed shell 2, making the distance between the movable shells 3 on both sides meet the specifications of the building exterior wall, so as to meet the water-blocking operation of different specifications of building exterior walls and improve adaptability;

[0049] As Figure 2 , Figure 3 and Figure 6 shown, a locking assembly 10 is provided on the rear side wall of the fixed shell 2. The locking assembly 10 includes a locking motor 21 which is fixedly installed at the center of the rear side wall of the fixed shell 2. A round shaft 22 is fixedly connected to the rotor of the locking motor 21. A rotating plate 23 is fixedly connected to the round shaft 22. Push plates 24 are arranged on both sides of the rotating plate 23. Cross bars 25 are fixedly connected to the push plates 24. A fixing plate 26 is movably connected to the side wall of the cross bar 25 and is sleeved with a first spring 27. Both ends of the first spring 27 are fixedly connected to the fixing plate 26 and the push plate 24 respectively. The fixing plate 26 is fixedly connected to the fixed shell 2. A round sleeve 28 is threadedly connected to one end of the cross bar 25 away from the push plate 24. A clamping plate 29 is fixedly connected to the round sleeve 28;

[0050] In this technical solution, the fixed shell 2 is placed at the position between two columns or structures of the building exterior wall. The locking motor 21 is started through an external power source. The locking motor 21 drives the rotating plate 23 to rotate through the round shaft 22. The rotating plate 23 pushes the push plates 24 on both sides. The push plates 24 drive the cross bars 25 to move and the first spring 27 is compressed. The cross bars 25 drive the clamping plates 29 to move through the round sleeves 28, so that the clamping plates 29 on both sides are tightly pressed between two columns or structures of the building exterior wall, completing the fixed installation between this water-blocking structure and the building structure and improving the convenience of disassembly and assembly;

[0051] As Figure 6 shown, further, a positioning bolt 39 is threadedly connected to the side wall of the round sleeve 28. The positioning bolt 39 penetrates through the side wall of the round sleeve 28 and abuts against the outer wall of the cross bar 25. By rotating the round sleeve 28, the installation requirements of different building structures can be adapted, and by rotating the positioning bolt 39, the locking between the round sleeve 28 and the cross bar 25 can be realized, improving the installation stability;

[0052] As Figure 7 and Figure 8As shown, a traction deployment assembly 12 is connected to the lower side of the waterproof cloth 1 through a connecting hook 11. The traction deployment assembly 12 includes a bottom shell 30. Two L-shaped movable plates 31 are symmetrically and movably connected inside the bottom shell 30. A number of mounting holes 32 are provided on both the movable plates 31 and the bottom shell 30. The connecting hook 11 is threadedly connected to the mounting holes 32. Two fixing rods 33 are fixedly connected inside the bottom shell 30. Both ends of the fixing rods 33 are inserted into the movable plates 31 on both sides and fixedly connected with a third spring 34. The third spring 34 is fixedly connected to the movable plate 31;

[0053] In this technical solution, the stretching of the waterproof cloth 1 can be realized through the weights of the bottom shell 30 and the movable plates 31, facilitating the water-blocking operation on the building exterior wall with the waterproof cloth 1. Moreover, by the action of the movable plates 31 and the third springs 34, waterproof cloths 1 of different specifications can be adapted for use, improving universality. Additionally, the waterproof cloth 1 can be unfolded by the elastic action of the third springs 34, enabling the waterproof cloth 1 to have a good water-blocking effect on the building exterior wall structure;

[0054] As Figure 1 and Figure 2 shown, further, a counterweight shell 40 is fixedly connected to the bottom surface of the bottom shell 30. The front side wall of the counterweight shell 40 is not closed. Appropriate weights can be added to the counterweight shell 40 according to actual needs, enabling the waterproof cloth 1 to stably perform the water-blocking operation on the exterior wall structure with good use effects.

[0055] A construction method for a water-blocking structure of a building exterior wall includes the following steps:

[0056] S1: Adjust the water-blocking structure according to the length and width of the building exterior wall that needs water blocking. Start the double-headed motor 14. The double-headed motor 14 drives the first gear 16 to rotate through the rotating shaft 15. The first gear 16 meshes with the second gear 17 to rotate. The second gear 17 drives the threaded rod 18 to rotate. The threaded rod 18 and the threaded sleeve 19 engage and rotate, causing the two movable shells 3 on both sides to continuously extend from the fixed shell 2. When the distance between the two movable shells 3 meets the specifications of the building exterior wall, stop the rotation of the double-headed motor 14;

[0057] S2: Then select a specified specification of the waterproof cloth 1, and install connecting rings 8 and connecting hooks 11 on both sides of the waterproof cloth 1 respectively. Sleeve the connecting rings 8 into the through holes 7 on the side walls of the movable shafts 5 and the movable sleeves 6 in sequence to complete the installation operation of the waterproof cloth 1 inside the fixed shell 2 and the movable shells 3. Thread the connecting hooks 11 into the mounting holes 32 on the bottom shell 30 and the movable plates 31 in sequence to realize the traction on one side of the waterproof cloth 1. Moreover, through the third springs 34 pushing the fixing rods 33, the two movable plates 31 can unfold the waterproof cloth 1;

[0058] S3: Place the fixed shell 2 at the position between two columns or structures of the building exterior wall. Start the locking motor 21 through an external power supply. The locking motor 21 drives the rotating plate 23 to rotate through the round shaft 22. The rotating plate 23 pushes the push plates 24 on both sides. The push plates 24 drive the cross bars 25 to move and the first spring 27 is compressed. The cross bars 25 drive the clamping plates 29 through the round sleeves 28, so that the clamping plates 29 on both sides are tightly abutted between two columns or structures of the building exterior wall, completing the fixed installation between this water-blocking structure and the building structure.

[0059] S4: Start the winding motor 4. The winding motor 4 drives the movable shaft 5 and the movable sleeve 6 to rotate, so that the waterproof cloth 1 wound on the movable shaft 5 and the movable sleeve 6 is unwound, and continuously shields the building exterior wall structure under the traction of the bottom shell 30 and the movable plate 31. When the waterproof cloth 1 is completely released, at this time, under the push of the second spring 37, the positioning rod 38 is inserted into the positioning groove 36 on the inner side wall of the annular plate 35, realizing the positioning of the movable shaft 5 and the movable sleeve 6. The water blocking of the building exterior wall structure can be realized through the waterproof cloth 1.

[0060] The present invention covers any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can also fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0061] Those of ordinary skill in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing relevant hardware through a program. This program can be stored in a computer-readable storage medium, such as: ROM / RAM, magnetic disk, optical disc, etc.

[0062] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A water-blocking structure for an exterior wall of a building, comprising a waterproof cloth (1), characterized in that: A fixed shell (2) and two movable shells (3) are arranged on the upper side of the waterproof cloth (1); a winding motor (4) is fixedly connected to the movable shell (3) on the left side; a movable shaft (5) is fixedly connected to the winding motor (4); a movable sleeve (6) is sleeved on the movable shaft (5); a plurality of through holes (7) are provided on the movable shaft (5) and the movable sleeve (6); a connecting ring (8) connected to the waterproof cloth (1) is sleeved in the through hole (7); a spacing adjustment component (9) is arranged on the top surface of the fixed shell (2); a locking component (10) is arranged on the rear side wall of the fixed shell (2); and a traction and unfolding component (12) is connected to the lower side of the waterproof cloth (1) via a connecting hook (11).

2. A building exterior wall water blocking structure according to claim 1, characterized in that: The spacing adjustment component (9) comprises a top plate (13), the top plate (13) is fixedly connected to the center of the top surface of the fixed shell (2), a double-headed motor (14) is fixedly connected to the top plate (13), two rotating shafts (15) are fixedly connected to the double-headed motor (14), a first gear (16) is fixedly connected to the rotating shaft (15), a second gear (17) is meshed on the lower side of the first gear (16), a threaded rod (18) is fixedly connected to the second gear (17), one end of the threaded rod (18) is movably connected to the top plate (13) and the other end is threadedly connected to a threaded sleeve (19), and the threaded sleeve (19) is fixedly connected to a side plate (20) fixedly connected to the movable shell (3).

3. A building exterior wall water blocking structure according to claim 2, characterized in that: The locking assembly (10) comprises a locking motor (21), wherein the locking motor (21) is fixedly mounted at the center of the rear side wall of the fixed shell (2); a round shaft (22) is fixedly connected to the rotor of the locking motor (21); a rotating plate (23) is fixedly connected to the round shaft (22); push plates (24) are arranged on both sides of the rotating plate (23); a cross bar (25) is fixedly connected to the push plates (24); a fixed plate (26) is movably connected to the side wall of the cross bar (25) and is sleeved with a first spring (27); two ends of the first spring (27) are respectively fixedly connected to the fixed plate (26) and the push plate (24); the fixed plate (26) is fixedly connected to the fixed shell (2); a round sleeve (28) is threadedly connected to one end of the cross bar (25) away from the push plate (24); a clamping plate (29) is fixedly connected to the round sleeve (28).

4. A building exterior wall water blocking structure according to claim 3, characterized in that: The traction and deployment assembly (12) comprises a bottom shell (30), wherein two movable plates (31) arranged in an L shape are symmetrically and movably connected in the bottom shell (30), a plurality of mounting holes (32) are provided on the movable plates (31) and the bottom shell (30), the connecting hook (11) is threadedly connected to the mounting holes (32), and two fixing rods (33) are fixedly connected in the bottom shell (30), the two ends of the fixing rods (33) are respectively inserted into the movable plates (31) at both sides and fixedly connected to third springs (34), and the third springs (34) are fixedly connected to the movable plates (31).

5. A water-blocking structure for building exterior walls according to claim 4, characterized in that: An annular plate (35) matching the movable sleeve (6) is fixedly connected to the side wall of the movable shell (3) on the right side, and a plurality of positioning grooves (36) are provided on the inner wall of the annular plate (35). A side groove is provided at the right end of the movable sleeve (6), and a second spring (37) is arranged in the side groove. Positioning rods (38) are fixedly connected to both ends of the second spring (37), and the positioning rod (38) extends out of the side groove away from one end of the second spring (37) and is inserted into the positioning groove (36).

6. A building exterior wall water blocking structure according to claim 5, characterized in that: The inner wall of the movable sleeve (6) is arranged in a regular hexagonal shape, and the movable shaft (5) is arranged in a regular hexagonal shape and matches the inner wall of the movable sleeve (6).

7. A building exterior wall water blocking structure according to claim 6, characterized in that: A positioning bolt (39) is threadedly connected to the side wall of the circular sleeve (28), and the positioning bolt (39) penetrates the side wall of the circular sleeve (28) and is pressed against the outer wall of the cross bar (25).

8. A building exterior wall water blocking structure according to claim 7, characterized in that: A counterweight shell (40) is fixedly connected to the bottom surface of the bottom shell (30), and the front side wall of the counterweight shell (40) is not closed.

9. A construction method for a building exterior wall water blocking structure according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The water-blocking structure is adjusted according to the length and width of the building exterior wall to be water-blocked as required, and the double-headed motor (14) is started. The double-headed motor (14) drives the first gear (16) to rotate through the rotating shaft (15). The first gear (16) meshes with the second gear (17) to rotate. The second gear (17) drives the threaded rod (18) to rotate. The threaded rod (18) and the threaded sleeve (19) mesh and rotate, so that the movable shells (3) on both sides are continuously extended from the fixed shell (2). When the spacing between the movable shells (3) on both sides meets the specifications of the building exterior wall, the rotation of the double-headed motor (14) is stopped; S2: Then, a waterproof cloth (1) of a specified specification is selected, and a connecting ring (8) and a connecting hook (11) are respectively installed on both sides of the waterproof cloth (1), and the connecting ring (8) is sleeved into the through hole (7) on the side wall of the movable shaft (5) and the movable sleeve (6) to realize the installation operation of the waterproof cloth (1) inside the fixed shell (2) and the movable shell (3), and the connecting hook (11) is threadedly installed in the installation hole (32) on the bottom shell (30) and the movable plate (31) in sequence to realize the traction of one side of the waterproof cloth (1), and the fixed rod (33) is pushed by the third spring (34), so that the movable plates (31) on both sides can unfold the waterproof cloth (1); S3: The fixed shell (2) is placed between two columns or structures on the building's outer wall, and the locking motor (21) is started by an external power supply. The locking motor (21) drives the rotating plate (23) to rotate through the circular shaft (22). The rotating plate (23) pushes the push plates (24) on both sides. The push plates (24) drive the cross bar (25) to move and the first spring (27) is compressed. The cross bar (25) drives the clamping plate (29) to move through the circular sleeve (28), so that the clamping plates (29) on both sides are pressed tightly between the two columns or structures on the building's outer wall, thereby completing the fixed installation between the water-blocking structure and the building structure. S4: Start the winding motor (4), which drives the movable shaft (5) and the movable sleeve (6) to rotate, so that the waterproof cloth (1) wound on the movable shaft (5) and the movable sleeve (6) is rotated out, and under the traction of the bottom shell (30) and the movable plate (31), the building exterior wall structure is continuously shielded. When the waterproof cloth (1) is completely released, the positioning rod (38) is inserted into the positioning groove (36) on the inner wall of the annular plate (35) under the push of the second spring (37), so as to realize the positioning of the movable shaft (5) and the movable sleeve (6), and the waterproof cloth (1) can be used to block the water of the filling exterior wall structure.

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