A large-format heavy-duty lifting window

Abstract

The invention discloses a large-format heavy-duty lifting window, comprising a window frame, a fixed window, a movable window, a support assembly, a steel wire, a counterweight module, a dual-output shaft motor and a synchronous belt, wherein a fixed window is provided at the lower part of the window frame, a movable window is provided outside the fixed window, a support assembly is installed at two corners above the window frame, a synchronous wheel is installed on the support assembly, a dual-output shaft motor is installed in the window frame between the two support assemblies, the dual-output shaft motor is connected to the corresponding synchronous wheel through a synchronous belt, limited wheels are installed on both sides of the synchronous wheel, a steel wire is installed on the limited wheel, one end of the steel wire is connected to the movable window, and the other end of the steel wire is connected to the counterweight module. The invention can reduce the deadweight of the window sash by arranging the support assembly in the window frame and supporting the movable window and the counterweight module through the support assembly, so that when the window sash is in use, the dual-output shaft motor can drive the window sash to open and close smoothly by outputting a relatively small power; the hardware accessories are integrated on the support assembly, so that the internal layout of the lifting window can be more concise.

Description

Technical Field

[0001] The invention relates to the field of lifting windows, in particular to a large-format heavy-duty lifting window. Background Art

[0002] A lifting window is a type of window that opens and closes by lifting the window sash, and a large-format heavy-duty lifting window is a large and heavy-duty lifting window. It is generally fixed as an entire wall and has the advantages of strong light transmittance and good ventilation. Due to its heavy weight, the large-format heavy-duty lifting window is difficult to open and close manually, so a motor-driven method is mainly used to open and close the window sash. There are two main schemes for motor-driven window sash opening and closing, one is to drive the window sash to open and close by a screw rod, and the other is to drive the steel wire to open and close by a steel wire. Since the screw rod has the characteristic of self-locking, the window cannot be opened and closed by manual control after a power outage or motor failure. In order to ensure the safety and convenience of using the window sash, the existing heavy-duty lifting windows mainly use steel wires for opening and closing.

[0003] In addition, as the weight of the lifting window increases, the power required for the motor to drive the window sash to open and close will also increase. However, as the motor power increases, the noise generated during operation will also increase accordingly. At the same time, the window sash is not convenient to open and close. Therefore, the window sash of the lifting window needs to use counterweights to reduce the weight of the window sash, so that it is convenient to open and close, and at the same time reduce the power of the motor to reduce the noise generated during its movement. However, due to the different sizes of window openings, it is difficult to keep the weight of the lifting window consistent. Therefore, the counterweight of the window sash needs to be easily adjusted. Most of the existing counterweights for window sashes are fixed-weight counterweights, which are discrete. For example, if a weight of 124.35kg is required, a counterweight of 100kg, 20kg, 4kg, and 0.35kg is required, which means that the factory needs to prepare standard counterweights of various weights. When window sashes of different weights are required, the counterweight is extremely inconvenient and will also increase the company's stocking costs.

[0004] Existing lifting windows are mainly realized by automatic opening and closing, so a variety of hardware accessories are required to ensure the fixed connection of various hardware devices. The space inside the window frame is limited, and too many hardware accessories will affect the internal layout of the window sash and subsequent maintenance. Therefore, it is necessary to optimize the structure of the window sash to make it easier to install, debug and maintain. Summary of the invention

[0005] The purpose of the present invention is to provide a large-format heavy-duty lifting window, which solves the above-mentioned problems and makes the window sash easier to open and close, thereby reducing the motor load and achieving the purpose of quietness, while facilitating subsequent debugging and maintenance work.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A large-format heavy-duty lifting window comprises a window frame, a fixed window, a movable window, a support assembly, a steel wire, a counterweight module, a dual-output shaft motor and a synchronous belt. A support column is embedded in the window frame, a fixed window is installed at the lower part of the window frame, a movable window that can be raised and lowered is provided on the window frame outside the fixed window, and support assemblies are installed at the corners of the window frame above both sides of the movable window. The support assembly comprises a load-bearing plate, a support block, a rotating shaft, a synchronous wheel, a limit wheel and a positioning plate. The load-bearing plate is arranged horizontally, and inverted T-shaped support blocks are symmetrically installed on both sides of the surface of the load-bearing plate. The support blocks are processed with waist-shaped holes that can be adjusted on the load-bearing plate. There is a hole between the two support blocks. A rotating shaft is installed, a synchronous wheel is installed in the middle of the rotating shaft, a dual-output shaft motor is installed in the window frame between the two supporting assemblies, the two output shafts of the dual-output shaft motor are connected to the synchronous wheels of the corresponding supporting assemblies through synchronous belts, and limiting wheels are installed on the rotating shafts on both sides of the synchronous wheels. A circular limiting groove for accommodating a steel wire is processed on the limiting wheel, and the steel wire is placed in the circular limiting groove. One end of the steel wire is connected to the movable window, and both sides of the bottom of the two ends of the movable window are provided with connecting pieces fixed to each steel wire, and the other end of the steel wire is connected to a counterweight module, and the counterweight module is placed in the window frame. The positioning plate is installed on the bottom surface of the load-bearing plate and is fixed to the inner wall of the window frame.

[0008] The window frame below the movable window is processed with a sliding groove for the connecting piece to slide up and down. The connecting piece is L-shaped, and the long side of the L-shaped connecting piece is fixed on the profiles on both sides of the window frame. The short side of the L-shaped connecting piece extends into the window frame. The connecting piece located in the window frame is processed with a bending portion, and the bending portion is processed with a through hole for the steel wire to pass through. The bending portions of the two connecting pieces located on one side of the movable window are arranged opposite to each other, and the movable window between the two bending portions is separated by a broken bridge.

[0009] The head and tail ends of the synchronous belt are spliced ​​through locking pieces to form a ring shape.

[0010] A supporting wheel is arranged between the movable window and the window frame, and the supporting wheel is installed on the window frame or on the movable window.

[0011] A screw hole connected with the window frame is processed on the side wall of the load-bearing plate away from the movable window.

[0012] The counterweight module includes a support frame, a bottom plate, a top plate, a pull plate, a guide wheel assembly and a counterweight block. The support frame is provided with a plurality of accommodating cavities, in which counterweight blocks are placed. The bottom and top of the support frame are respectively provided with a bottom plate and a top plate adapted to their contours. A pull plate vertically penetrating the top plate, the support frame and the bottom plate is provided above the top plate. The bottom of the pull plate is fixedly connected to the bottom plate. A connecting hole connected to a steel wire is processed on the pull plate above the top plate. Guide wheel assemblies in contact with the inner wall of the window frame are installed at the four corners of each side wall of the support frame.

[0013] The support frame is composed of multiple frames spliced ​​in sequence, and multiple C-shaped limit grooves and limit blocks that cooperate with each other are processed on the side walls of adjacent frames. The C-shaped limit grooves and limit blocks are staggeredly installed on the side walls between adjacent frames, and guide wheel assemblies are installed on the frames located at the four corners of the support frame.

[0014] The counterweight block comprises a plurality of lead blocks, and the lead blocks are packaged lead blocks with fixed weights.

[0015] A weight adjustment block is also provided in the accommodating cavity, and the weight adjustment block comprises an iron block, cast iron or / and a stainless steel block.

[0016] The window frame is provided with a self-locking mechanism for fixing the movable window, and the self-locking mechanism includes a fixed plate, a guide rod, a screw, a guide rail seat, a shell, a rack, a lock tongue, a motor and a gear. The fixed plate is installed on the window frame, and a plurality of horizontally arranged guide rods are provided on the side wall of one side of the fixed plate, and a slidable guide rail seat is provided on the guide rod. The fixed plate is also provided with a screw parallel to the guide rod and used to drive the guide rail seat to move horizontally. A shell is installed on the side of the guide rail seat away from the fixed plate, and a horizontally arranged rack is provided in the shell. The end of the rack close to the movable window is connected with a lock tongue, and a motor is installed at the bottom of the shell. The output shaft of the motor extends into the shell and is connected to a gear meshing with the rack. The rack can be moved toward the movable window through the gear, and the lock tongue is driven to limit the movable window.

[0017] The large-format heavy-duty lifting window provided by the present invention has the following beneficial effects:

[0018] (1) By arranging a support assembly in the window frame and supporting the movable window and the counterweight module through the support assembly, the deadweight of the window sash can be reduced, so that when in use, only a small power output of the dual output shaft motor is required to drive the window sash to open and close smoothly. At the same time, the hardware accessories of the lifting window are integrated on the support assembly, which can make the internal layout of the lifting window more concise and facilitate the later maintenance of the movable window.

[0019] (2) By providing a connecting piece for connecting the steel wire at the lower part of the movable window and processing a sliding groove for the connecting piece to slide on the window frame, the steel wire can be hidden in the window frame. On the one hand, the steel wire is prevented from being exposed and affecting the beauty of the window sash. On the other hand, the exposed steel wire can be prevented from being entangled with curtains, clothes, etc. and causing safety accidents. At the same time, the two connecting pieces on one side of the movable window are separated by a broken bridge of the window frame, which can prevent the two steel wires from being entangled with each other and causing the lifting window failure;

[0020] (3) By providing a dual output shaft motor, the length of the transmission belt can be reduced to ensure transmission efficiency. At the same time, the reversing gear can be eliminated, making the layout inside the window frame more concise and facilitating the installation and maintenance of the lifting window;

[0021] (4) By setting a synchronous belt connected at both ends by a locking piece, the length of the synchronous belt can be conveniently adjusted according to the length of the window sash, so as to avoid the situation that the size of the integrally formed synchronous belt is not compatible with the window sash, and the customization cost of the synchronous belt can be saved, and the production cost of the transmission belt can be effectively reduced. At the same time, the locking piece is used to connect the head and tail ends of the synchronous belt. When installing and maintaining doors and windows, the length of the synchronous belt can be cut according to the distance between the dual output shaft motor and the synchronous wheel, so that the assembly of the lifting window is more flexible and the assembly efficiency of the lifting window is improved;

[0022] (5) By installing a support wheel between the movable window and the window frame, the stability of the movable window during movement can be ensured, the friction with the window frame can be reduced, the service life of the movable window can be ensured, and the maintenance cycle can be extended;

[0023] (6) By machining screw holes on the side wall of the load-bearing plate of the support assembly, the load-bearing plate can be kept horizontally arranged, and the gravity exerted on the load-bearing plate can be decomposed, making the structure of the support assembly more stable, thereby ensuring the stable operation of the lifting window;

[0024] (7) By setting a counterweight module, the number of counterweights can be adjusted according to the weight of the movable window, which can be adapted to the use of most window sashes, greatly facilitating the counterweight efficiency of the movable window. At the same time, the guide wheel assembly on the counterweight module can ensure that the counterweight module moves smoothly in the window frame, ensuring that the movable window can operate smoothly. In addition, the counterweight module adopts a combination of encapsulated lead blocks and weight adjustment blocks. The encapsulated lead blocks have the advantages of high density and can prevent heavy metal pollution, while the weight adjustment blocks can be cut, and the counterweight accuracy can be conveniently adjusted to make the weight of the movable window equal to that of the counterweight module, so as to reduce the burden of the dual-output shaft motor. In addition, the counterweight module is adopted, so that the movable window can be opened without too much force. People can easily open the window sash by manually opening the window, and the window can be manually opened after a power outage or motor failure.

[0025] (8) By arranging a plurality of frames to form a support frame of a counterweight module, the frames can be made into finished parts, and when in use, the frames are spliced ​​into a shape that matches the inner contour of the window frame, thereby making the counterweight of the movable window more convenient and simplifying the installation of the lifting window;

[0026] (9) By setting up a self-locking mechanism, the movable window can be automatically locked, effectively solving the problem of anti-theft safety. At the same time, the self-locking mechanism can also be manually unlocked to avoid the problem of the window being unable to open after a power outage or motor failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention.

[0029] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention.

[0030] Figure 3 A schematic structural diagram of a window frame provided in an embodiment of the present invention.

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0032] Figure 5 A schematic diagram of the structure of an active window provided by an embodiment of the present invention.

[0033] Figure 6 A schematic structural diagram of a connecting piece provided in an embodiment of the present invention.

[0034] Figure 7 A top view of the connector provided by an embodiment of the present invention during installation.

[0035] Figure 8 The figure is a schematic diagram of the structure of a support assembly provided in an embodiment of the present invention.

[0036] Fig. 9 A top view of a support assembly provided in accordance with an embodiment of the present invention.

[0037] Fig.10 A schematic structural diagram of a counterweight module provided in an embodiment of the present invention.

[0038] Fig.11 A schematic structural diagram of a support frame provided in an embodiment of the present invention.

[0039] Fig.12 A schematic diagram of the structure of a synchronous belt connection provided by an embodiment of the present invention.

[0040] Fig.13 A schematic diagram of the structure in which a support wheel provided in an embodiment of the present invention is installed on a movable window.

[0041] Fig.14 A schematic diagram of the structure in which the support wheel provided in an embodiment of the present invention is installed on a window frame.

[0042] Fig.15 A schematic diagram of the installation of the self-locking mechanism provided in an embodiment of the present invention.

[0043] Fig.16 A schematic diagram of the internal structure of a self-locking mechanism provided in an embodiment of the present invention.

[0044] Figure numerals: 1, window frame; 11, slide; 12, broken bridge; 13, support column; 2, fixed window; 3, movable window; 31, connecting piece; 32, bending part; 33, through hole; 4, support assembly; 41, load-bearing plate; 42, screw hole; 43, support block; 44, waist-shaped hole; 45, rotating shaft; 46, synchronous wheel; 47, limiting wheel; 48, circular limiting groove; 49, positioning plate; 5, steel wire; 6, counterweight module; 61, support frame; 62, accommodating cavity; 63, frame body; 64, C-shaped limit groove; 65, limit block; 66, bottom plate; 67, top plate; 68, pull plate; 69, guide wheel assembly; 610, counterweight block; 611, weight adjustment block; 7, dual output shaft motor; 8, synchronous belt; 81, locking piece; 9, support wheel; 10, self-locking mechanism; 101, fixing plate; 102, guide rod; 103, screw; 104, guide rail seat; 105, housing; 106, rack; 107, lock tongue; 108, motor; 109, gear. DETAILED DESCRIPTION

[0045] Example

[0046] like Figures 1 to 16As shown, the large-format heavy-duty lifting window provided in this embodiment includes a window frame 1, a fixed window 2, a movable window 3, a support assembly 4, a steel wire 5, a counterweight module 6, a dual-output shaft motor 7 and a synchronous belt 8. A support column 13 is embedded in the window frame 1, and the window frame 1 can be auxiliary supported by the support column 13. The fixed window 2 is installed at the lower part of the window frame 1, and the window frame 1 outside the fixed window 2 is provided with a liftable movable window 3. The window frame 1 is supported by the support column 13 to ensure the stability of the window frame 1 and provide support for the smooth operation of the movable window 3. Support assemblies 4 are installed inside the corners of the window frame 1 above both sides of the movable window 3. The support assembly 4 includes a load-bearing plate 41, a support block 43, a rotating shaft 45, a synchronous wheel 46, a limiting wheel 47 and a positioning plate 49. The load-bearing plate 41 is horizontal The surface of the load-bearing plate 41 is symmetrically provided with inverted T-shaped support blocks 43, and the support blocks 43 are processed with waist-shaped holes 44 whose positions on the load-bearing plate 41 can be adjusted. The positions of the support blocks 43 on the load-bearing plate 41 can be adjusted through the waist-shaped holes 44, so that the support blocks 43 can provide better supporting force. A rotating shaft 45 is installed between the two support blocks 43, and a synchronous wheel 46 is installed in the middle of the rotating shaft 45. A dual-output shaft motor 7 is installed in the window frame 1 between the two support assemblies 4. The two output shafts of the dual-output shaft motor 7 are connected to the synchronous wheel 46 of the corresponding support assembly 4 through a synchronous belt 8. The two synchronous belts 8 can be rotated in opposite directions through the dual-output shaft motor 7, which can avoid the purpose of installing a reversing gear, making the internal layout of the window frame 1 more concise to ensure the window sash. Stable operation can be achieved while reducing the use of hardware. The head and tail ends of the synchronous belt 8 are spliced ​​in a ring shape through a locking piece 81. The locking piece 81 can make it possible for the synchronous belt 8 to be customized in length without the need to customize the length. The synchronous belt 8 can be cut according to the spacing between the dual-output shaft motor 7 and the synchronous wheel 46 on site. On the one hand, the installation efficiency of the synchronous belt 8 is improved, and on the other hand, the length of the synchronous belt 8 can be customized to save production costs. Limiting wheels 47 are installed on the rotating shafts 45 on both sides of the synchronous wheel 46. A circular limiting groove 48 for accommodating the steel wire 5 is processed on the limiting wheel 47. The steel wire 5 is placed in the circular limiting groove 48. Strip holes for the steel wire 5 to pass through are processed on the window frame 1 and the load-bearing plate 41. The strip holes can give the steel wire 5 a certain amount of activity space to prevent the steel wire 5 from being rubbed One end of the steel wire 5 is connected to the movable window 3, and both sides of the bottom of the two ends of the movable window 3 are provided with connecting pieces 31 fixed to each steel wire 5. The other end of the steel wire 5 is connected to the counterweight module 6, and the counterweight module 6 is placed in the window frame 1. The positioning plate 49 is installed on the bottom surface of the load-bearing plate 41 and is fixed to the inner wall of the window frame 1. The function of the positioning plate 49 is to form a right angle with the load-bearing plate 41, so that the connection with the corner of the window frame 1 is more stable to ensure the stability of the support assembly 4. The side wall of the load-bearing plate 41 away from the end of the movable window 3 is processed with a screw hole 42 connected to the window frame 1. Through the screw hole 42, the load-bearing plate 41 can be fixed to the window frame 1 under the action of the screw, which improves the stability of the load-bearing plate 41 on the one hand, and ensures that the load-bearing plate 41 is set horizontally on the other hand.Prevent the load-bearing plate 41 from being deformed due to stress.

[0047] like Figure 3 to Figure 7 As shown, most of the existing lifting windows use steel wires 5 to drive the movable window 3 to move, but the exposed steel wires 5 will affect the beauty of the window sash on the one hand, and on the other hand, the steel wires 5 are easily wound, causing the window sash to not operate normally. For this reason, the present solution processes a slide groove 11 on the window frame 1 below the movable window 3 for the connecting member 31 to slide up and down, and the length of the slide groove 11 is equal to the height of the movable window. In this way, the connecting member 31 installed at the bottom of the movable window 3 will be hidden in the window frame 1 all the time, which will not be exposed to affect the beauty of the window sash, and can also prevent the steel wire 5 from winding and affecting the normal use of the window sash. The connecting member 31 is L-shaped, and the long side of the L-shaped connecting member 31 is fixed to the window frame 1 On the profiles on both sides, the short sides of the L-shaped connector 31 extend into the window frame 1, and a bending portion 32 is processed on the connector 31 located in the window frame 1, and a through hole 33 is processed on the bending portion 32 for the steel wire 5 to pass through. When in use, the steel wire 5 is passed through the through hole 33 and then fixed. The steel wire 5 can be hidden in the window frame 1 on one side of the slide groove 11 through the bending portion 32, which can effectively prevent the steel wire 5 from being wound. The bending portions 32 of the two connectors 31 located on one side of the movable window 3 are arranged opposite to each other, and the movable window 3 between the two bending portions 32 is separated by a broken bridge 12. The broken bridge 12 of the window frame 1 can be used to prevent the steel wires 5 on both sides of the movable window 3 from being wound around each other, thereby ensuring the stability of the window sash operation.

[0048] like Fig.13 , Fig.14 As shown, in order to make the movable window 3 move more smoothly, a support wheel 9 is provided between the movable window 3 and the window frame 1. The support wheel 9 is installed on the window frame 1 or on the movable window 3. When the support wheel 9 is installed on the window frame 1, it has the function of resisting strong wind pressure and is suitable for use in large-format and windy environments; when the support wheel 9 is installed on the movable window 3, it has the functions of precise transmission and silencing. When in use, the corresponding installation method can be selected according to the specific environment.

[0049] like Fig.10As shown, most of the existing lifting windows are large-format structures with heavy weight. In order to facilitate opening and closing, they need to be counterweighted so that they can conveniently complete the opening and closing actions. The counterweight module 6 includes a support frame 61, a bottom plate 66, a top plate 67, a pull plate 68, a guide wheel assembly 69 and a counterweight block 610. The support frame 61 is provided with a plurality of accommodating cavities 62, and the counterweight block 610 is placed in the accommodating cavity 62. The bottom and top of the support frame 61 are respectively provided with a bottom plate 66 and a top plate 67 adapted to their contours. A vertical through hole is provided above the top plate 67. A pull plate 68 passes through the top plate 67, the support frame 61 and the bottom plate 66, and the bottom of the pull plate 68 is fixedly connected to the bottom plate 66. A connecting hole connected to the steel wire 5 is processed on the pull plate 68 above the top plate 67. There are multiple connecting holes for connecting to the corresponding steel wires 5. The four corners of each side wall of the support frame 61 are equipped with a guide wheel assembly 69 that contacts the inner wall of the window frame 1. The guide wheel assembly 69 can make the counterweight block 610 move smoothly in the window frame 1 to ensure the counterweight efficiency, and at the same time prevent the support frame 61 and the window frame 1 from rubbing against each other to generate noise.

[0050] In addition, the use of the counterweight module 6 can make the weight of the movable window 3 lighter, so that the movable window 3 can be opened and closed manually and easily. In the case where the movable window 3 cannot be opened automatically after a power outage or a motor failure, the window can be opened and closed by pushing and pulling the movable window 3 up and down. Since the movable window 3 can be easily opened after the counterweight, in order to ensure safety, Fig.15 , Fig.16As shown, the window frame 1 is provided with a self-locking mechanism 10 for fixing the movable window, and the self-locking mechanism includes a fixed plate 101, a guide rod 102, a screw 103, a guide rail seat 104, a shell 105, a rack 106, a lock tongue 107, a motor 108 and a gear 109. The fixed plate 101 is installed on the window frame 1, and a plurality of horizontally arranged guide rods 102 are arranged on the side wall of one side of the fixed plate 101, and a slidable guide rail seat 104 is arranged on the guide rod 102. The fixed plate 101 is also provided with a screw 103 parallel to the guide rod 102 and used to drive the guide rail seat 104 to move horizontally. A shell 105 is installed on the side of the guide rail seat 104 away from the fixed plate 101, and a rack 106 that can be horizontally arranged is arranged in the shell 105. The rack 106 is close to the movable window. A lock tongue 107 is connected to one end of the movable window 3, and a motor 108 is installed at the bottom of the shell 105. The output shaft of the motor 108 is extended into the shell 105 and is connected to a gear 109 meshing with the rack 106. The rack 106 can be moved toward the movable window 3 through the gear 109, and the lock tongue 107 is driven to limit the movable window 3. Under normal conditions, after the movable window 3 is moved into place, the motor 108 drives the rack 106 to move toward the movable window 3 through the gear 109, and the lock tongue 107 on the rack 106 is inserted into the movable window 3 to limit the movable window 3; when the power is off, the movable window 3 cannot be closed. At this time, the screw 103 is rotated to move the guide rail seat 104 away from the movable window 3, thereby releasing the locking state of the movable window 3 and realizing manual unlocking.

[0051] Due to the different installation environments of the lifting windows, the thickness of the window frame 1 will be different. In order to alleviate this situation, Fig.11 As shown, the support frame 61 is composed of a plurality of frame bodies 63 which are spliced ​​in sequence. When in use, the corresponding frame bodies 63 can be selected according to the size of the window frame 1 and spliced ​​into a size consistent with the thickness of the window frame 1 to ensure the weight balancing efficiency and reduce noise. A plurality of mutually cooperating C-shaped limit grooves 64 and limit blocks 65 are processed on the side walls of adjacent frame bodies 63. The C-shaped limit grooves 64 and limit blocks 65 are respectively and staggeredly installed on the side walls between adjacent frame bodies 63. The C-shaped limit grooves 64 and limit blocks 65 can be used to splice a plurality of frame bodies 63 into a whole. Guide wheel assemblies 69 are installed on the frame bodies 63 at the four corners of the support frame 61.

[0052] like Fig.11 As shown, there are many types of existing counterweight blocks 610, but the density of lead is large. Lead blocks of the same volume have a heavier weight than most metal blocks, and the cost of lead is not high. For this reason, lead blocks are used as counterweight blocks 610. In order to facilitate the adjustment of the counterweight, the lead blocks are preferably multiple packaged lead blocks of fixed weight. The use of packaged lead blocks can prevent lead pollution. For example, if a movable window 3 with a counterweight of 100kg is required, two 50kg packaged lead blocks are selected as counterweight blocks 610. In addition, lead blocks of the same weight have the advantage of small size, which can further reduce the size of the window frame 1 and make the overall window sash more beautiful.

[0053] like Fig.11 As shown, due to the different sizes of window openings, windows are customized products, and the weight of each window is inconsistent, so they need to be individually counterweighted. Although a large range of adjustments can be made by using multiple packaged lead blocks, there are still some small parameters that require auxiliary adjustments. Since lead is polluting, the use of packaged lead blocks can avoid this situation. For this reason, the packaged lead blocks cannot be cut during auxiliary adjustments, and weight adjustment blocks 611 are required. A weight adjustment block 611 is also provided in the accommodating cavity 62. The weight adjustment block 611 includes an iron block, cast iron or / and a stainless steel block. The weight adjustment block 611 is preferably a strip block of uniform specifications. In this way, when the weight needs to be adjusted, accurate counterweighting can be performed by cutting weight adjustment blocks 611 of different lengths, thereby improving counterweighting efficiency. The weight adjustment blocks 611 of the above-mentioned material can be cut arbitrarily without any problems. Pollution is generated, and the counterweight can be adjusted according to the weight parameters in the actual assembly process. For example, if a movable window 3 with a counterweight of 101.6kg is required, two 50kg packaged lead blocks and two 0.8kg weight adjustment blocks 611 are selected. The 0.8kg weight adjustment block 611 can be calculated by cutting a fixed length. For example, if the material of the weight adjustment block is known, the length to be cut can be calculated according to the width of the cross section, and the weight adjustment block 611 of a fixed weight can be conveniently cut. Moreover, the weight adjustment block 611 is cut in a way that improves stocking efficiency. The company only needs to prepare large-volume packaged lead blocks and weight adjustment blocks. When the weight of the packaged lead blocks needs to be increased, the counterweight stocking can be completed by cutting the weight adjustment blocks 611 of a fixed length. There is no need to prepare counterweight blocks of various specifications, thereby reducing the production cost of the company.

[0054] The method of using the present invention is:

[0055] When in use, the support assembly 4 is installed on the upper part of both sides of the window frame 1. When the support assembly 4 is installed, the load-bearing plate 41 is fixed first. When the load-bearing plate 41 is installed, the positioning plate 49 is fixed inside the window frame 1, and screws are screwed into the screw holes 42 from the outside of the window frame 1 to set the load-bearing plate 41 horizontally. Then, the support column 13 is embedded in the window frame 1, and the window frame 1 is installed in the window hole. Then, the weight of the movable window 3 is weighed, and two sets of counterweight modules 6 with the same weight as the movable window 3 are weighed. The weights of the two sets of counterweight modules 6 are equal. Then, the weight of the support assembly 4 is fixed on the support assembly 49. 4, and the steel wires 5 are respectively passed through the corresponding strip holes and then pulled out from the slide grooves 11 on the window frame 1 to be connected to the four connecting pieces 31 at the bottom of the movable window 3. Subsequently, after the counterweight module 6 is assembled, it is installed in the window frame 1. Finally, the dual-output shaft motor 7 is installed on the top of the window frame 1, and a fixed-length synchronous belt 8 is used to connect the output shafts of the dual-output shaft motor 7 to the corresponding synchronous wheels 46. The two ends of the synchronous belt 8 are connected into a ring through a locking piece 81. Finally, debugging is performed to complete the installation of the lifting window.

[0056] Since the hardware required for the lifting window is concentrated on the support assembly 4, the maintenance process is greatly facilitated during the later maintenance.

[0057] In case of power outage or motor failure, the self-locking mechanism on the movable window 3 can be opened to easily open the window manually for indoor ventilation or escape. In addition, the self-locking mechanism needs to be opened from indoors. After the window is closed, the self-locking mechanism needs to be manually locked from the inside to provide an anti-theft effect.

[0058] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitation of the present invention.

Claims

1. A large-format heavy-duty lifting window, characterized in that: The window frame comprises a window frame, a fixed window, a movable window, a support assembly, a steel wire, a counterweight module, a dual-output shaft motor and a synchronous belt. A support column is embedded in the window frame. A fixed window is installed at the lower part of the window frame. A movable window that can be raised and lowered is arranged on the window frame outside the fixed window. Support assemblies are installed at the corners of the window frame above both sides of the movable window. The support assembly comprises a load-bearing plate, a support block, a rotating shaft, a synchronous wheel, a limiting wheel and a positioning plate. The load-bearing plate is arranged horizontally. Inverted T-shaped support blocks are symmetrically installed on both sides of the surface of the load-bearing plate. The support blocks are processed with waist-shaped holes that can adjust their positions on the load-bearing plate. A rotating shaft is installed between the two support blocks. The rotating shaft is installed between the two support blocks. A synchronous wheel is installed in the middle of the shaft, and a double-output shaft motor is installed in the window frame between the two supporting assemblies. The two output shafts of the double-output shaft motor are connected to the synchronous wheels of the corresponding supporting assemblies through synchronous belts. Limiting wheels are installed on the rotating shafts on both sides of the synchronous wheels. A circular limiting groove for accommodating a steel wire is processed on the limiting wheel. The steel wire is placed in the circular limiting groove. One end of the steel wire is connected to the movable window. Both sides of the bottom of the two ends of the movable window are provided with connecting pieces fixed to each steel wire. The other end of the steel wire is connected to a counterweight module. The counterweight module is placed in the window frame. The positioning plate is installed on the bottom surface of the load-bearing plate and is fixed to the inner wall of the window frame. The window frame below the movable window is processed with a slide groove for the connecting piece to slide up and down, and the connecting piece is L-shaped, and the long side of the L-shaped connecting piece is fixed to the profiles on both sides of the window frame, and the short side of the L-shaped connecting piece extends into the window frame. The connecting piece located in the window frame is processed with a bending portion, and the bending portion is processed with a through hole for the steel wire to pass through. The bending portions of the two connecting pieces located on one side of the movable window are arranged oppositely, and the movable window between the two bending portions is separated by a broken bridge; the counterweight module includes a support frame, a bottom plate, a top plate, a pull plate, a guide wheel assembly and a counterweight block, and a plurality of accommodating cavities are provided in the support frame, and a counterweight block is placed in the accommodating cavity. The lower part and the top are respectively provided with a bottom plate and a top plate adapted to their contours; a pull plate vertically penetrating the top plate, the support frame and the bottom plate is provided above the top plate; the bottom of the pull plate is fixedly connected to the bottom plate; a connecting hole connected to a steel wire is processed on the pull plate above the top plate; guide wheel assemblies in contact with the inner wall of the window frame are installed at the four corners of each side wall of the support frame; the support frame is composed of a plurality of frame bodies spliced ​​in sequence, a plurality of C-shaped limit grooves and limit blocks that cooperate with each other are processed on the side walls of adjacent frame bodies, the C-shaped limit grooves and limit blocks are respectively staggeredly installed on the side walls between adjacent frame bodies, and guide wheel assemblies are installed on the frame bodies located at the four corners of the support frame.

2. The large-format heavy-duty lifting window according to claim 1 is characterized in that: The head and tail ends of the synchronous belt are spliced ​​through locking pieces to form a ring shape.

3. The large-format heavy-duty lifting window according to claim 1 is characterized in that: A supporting wheel is arranged between the movable window and the window frame, and the supporting wheel is installed on the window frame or on the movable window.

4. The large-format heavy-duty lifting window according to claim 1 is characterized in that: A screw hole connected with the window frame is processed on the side wall of the load-bearing plate away from the movable window.

5. The large-format heavy-duty lifting window according to claim 1 is characterized in that: The counterweight block comprises a plurality of lead blocks, and the lead blocks are packaged lead blocks with fixed weights.

6. The large-format heavy-duty lifting window according to claim 1, characterized in that: A weight adjustment block is also provided in the accommodating cavity, and the weight adjustment block comprises an iron block, cast iron or / and a stainless steel block.

7. The large-format heavy-duty lifting window according to claim 1, characterized in that: The window frame is provided with a self-locking mechanism for fixing the movable window, and the self-locking mechanism includes a fixed plate, a guide rod, a screw, a guide rail seat, a shell, a rack, a lock tongue, a motor and a gear. The fixed plate is installed on the window frame, and a plurality of horizontally arranged guide rods are provided on the side wall of one side of the fixed plate, and a slidable guide rail seat is provided on the guide rod. The fixed plate is also provided with a screw parallel to the guide rod and used to drive the guide rail seat to move horizontally. A shell is installed on the side of the guide rail seat away from the fixed plate, and a horizontally arranged rack is provided in the shell. The end of the rack close to the movable window is connected with a lock tongue, and a motor is installed at the bottom of the shell. The output shaft of the motor extends into the shell and is connected to a gear meshing with the rack. The rack can be moved toward the movable window through the gear, and the lock tongue is driven to limit the movable window.

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