Energy-saving casement lift doors and windows

Abstract

The present invention relates to energy-saving casement lifting doors and windows, including an installation frame, an inner fan and an outer fan that are slidably arranged up and down in the installation frame. A load-bearing pulley device is provided in the installation frame, and a rope body is wound around the load-bearing pulley device. The inner fan and the outer fan are respectively connected to the rope body, and the inner fan and the outer fan are located on both sides of the rope body. The invention further includes a lifting and adjusting device arranged in the installation frame. The lifting and adjusting device is provided with rollers and an adjusting mechanism for adjusting the up and down positions of the rollers. The rollers are located below the load-bearing pulley device, and the rope body is wound around the load-bearing pulley device and the rollers to form a closed loop. After adopting the technical solution of the present invention, the up and down positions of the rollers can be adjusted through the adjusting mechanism, the tension degree of the closed-loop rope body can be adjusted, the resistance of the rope body to move can be controlled, and thus the resistance of the inner fan and the outer fan to lift can be controlled, enabling the doors and windows to be opened and positioned stably. By utilizing the linkage of the inner fan and the outer fan, the effort for opening and closing the doors and windows can be saved, and it is more energy-saving.

Description

Technical Field

[0001] The present invention relates to an energy-saving casement lifting door and window. Background Art

[0002] Traditional doors and windows include casement type and sliding type, both of which have their own advantages and disadvantages. There are also doors and windows on the market that combine casement and sliding functions. Traditional casement lifting doors and windows generally include a fixed frame and a movable frame movably arranged in the fixed frame (the movable frame can be installed on the fixed frame by means of hinge, for example). An outer sash and an inner sash are arranged in the movable frame. Both the inner sash and the outer sash are slidably mounted in the movable frame through guide wheels. A fixed pulley is arranged in the movable frame, and a spring rope is wound around the fixed pulley. The inner sash and the outer sash are connected to both ends of the spring rope, and the linkage between the inner sash and the outer sash is also realized through the fixed pulley.

[0003] In traditional lifting doors and windows, the spring rope is wound around the fixed pulley. After the position of the fixed pulley is locked, its position is difficult to adjust. To position the inner sash and the outer sash at a certain position, it is necessary to reasonably adjust the friction between the inner sash and the outer sash and the movable frame, with high processing precision requirements, and the sliding resistance of the inner sash and the outer sash is relatively large.

[0004] In addition, during the opening process of traditional lifting doors and windows, there is a relatively large yaw of the inner sash and the outer sash in the front, back, left, and right directions, which to a certain extent affects the smoothness and safety of the opening of the doors and windows.

[0005] In view of this, the inventor of this case has conducted in-depth research on the above problems, and thus this case has been produced. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy-saving casement lifting door and window with a simple structure, more energy-saving and stable.

[0007] To achieve the above purpose, the present invention adopts the following technical solution:

[0008] The energy-saving casement lifting door and window includes an installation frame, an inner sash and an outer sash slidably arranged in the installation frame. A load-bearing pulley device is arranged in the installation frame, and a rope body is wound around the load-bearing pulley device. The inner sash and the outer sash are respectively connected to the rope body, and the inner sash and the outer sash are located on both sides of the rope body. It also includes a lifting adjustment device arranged in the installation frame. The lifting adjustment device is provided with rollers and an adjustment mechanism for adjusting the up and down positions of the rollers. The rollers are located below the load-bearing pulley device, and the rope body is wound around the load-bearing pulley device and the rollers to form a closed loop.

[0009] As a preferred embodiment of the present invention, an inner fan limiting lifting pulley device is connected to the rope body. The inner fan limiting lifting pulley device includes a locking portion and a guiding portion provided on the locking portion. A rope passing groove for the rope body to pass through is formed on the guiding portion. A positioning mechanism for fixing the rope body in the guiding portion is further provided on the guiding portion. A guiding wheel is provided on the guiding portion. The guiding wheel is rotatably arranged on the guiding portion. The locking portion is fixed on one side of the inner fan close to the installation frame, and the guiding wheel abuts against the inside of the installation frame.

[0010] As a preferred embodiment of the present invention, a casement lifting outer fan limiting lifting pulley device is connected to the rope body. The casement lifting outer fan limiting lifting pulley device includes a mounting block and a guide wheel body rotatably arranged on the mounting block. An embedding groove is provided on the mounting block. The guide wheel body is rotatably arranged on the embedding block, and the embedding block is clamped in the embedding groove. The mounting block is fixed on one side of the outer fan close to the installation frame, and the guide wheel body abuts against the inside of the installation frame.

[0011] As a preferred embodiment of the present invention, anti-sway pulley devices are provided at the upper ends of both the inner fan and the outer fan. The anti-sway pulley device includes a mounting base plate, a first guide wheel, a second guide wheel, and a third guide wheel. The first guide wheel and the second guide wheel are both rotatably arranged on the mounting base plate. The wheel shaft of the first guide wheel is arranged parallel to the wheel shaft of the second guide wheel. The wheel shaft of the third guide wheel is arranged perpendicular to the wheel shaft of the first guide wheel. A first extension portion perpendicular to the mounting base plate is formed on the mounting base plate. First mounting arms and second mounting arms are respectively formed on both sides of the first extension portion. The first mounting arms and the second mounting arms are arranged at an angle. The first guide wheel is mounted on the first mounting arm, and the second guide wheel is mounted on the second mounting arm.

[0012] As a preferred embodiment of the present invention, a positioning switch piece is provided on the inner fan or the outer fan. A positioning hole is provided on the positioning switch piece. A safety positioner cooperating with the positioning switch piece is provided on the installation frame. The safety positioner includes a mounting seat and a positioning pin provided on the mounting seat. A positioning column is provided on the mounting seat. The positioning column is provided with a guiding hole, and the guiding hole is arranged along the axial direction of the positioning column. The positioning pin is circumferentially rotatable and axially movable through the guiding hole. A supporting platform is provided in the guiding hole. A latching portion is provided on the positioning pin. An elastic member is sleeved on the positioning pin. One end of the elastic member corresponds to the supporting platform, and the other end corresponds to the latching portion. A first positioning portion and a second positioning portion are provided at the end of the positioning column. A positioning cap is provided on the positioning pin, and a positioning strip capable of switching positions between the first positioning portion and the second positioning portion is provided on the positioning cap.

[0013] As a preferred embodiment of the present invention, a fixed frame is further included. The installation frame is installed on the fixed frame through a hinge and can be pushed and pulled open inside and outside.

[0014] After adopting the technical solution of the present invention, the up-and-down position of the roller can be adjusted through the adjusting mechanism, the tension degree of the closed-loop rope body can be adjusted, and the resistance of the rope body movement can be controlled, so as to control the resistance of the inner fan and the outer fan to lift, enabling the doors and windows to be opened and positioned stably. By utilizing the linkage of the inner fan and the outer fan, the effort for opening and closing the doors and windows can be saved, and it is more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the cooperation of the load-bearing pulley device, the lifting adjustment device, the inner fan limit lifting pulley device, the casement lifting outer fan limit lifting pulley device and the rope body in the present invention.

[0017] Figure 3 It is a schematic structural diagram of the fixed frame in the present invention.

[0018] Figure 4 It is a schematic structural diagram of the outer fan in the present invention.

[0019] Figure 5 It is a sectional view taken along the line A-A in the present invention.

[0020] Figure 6 It is a sectional view taken along the line B-B in the present invention.

[0021] Figure 7 It is a schematic structural diagram of the load-bearing pulley device in the present invention.

[0022] Figure 8 It is a schematic sectional structural diagram of the load-bearing pulley device in the present invention.

[0023] Figure 9 It is a schematic structural diagram of the lifting adjustment device in the present invention.

[0024] Figure 10 It is a schematic structural diagram of the lifting adjustment device from another angle in the present invention.

[0025] Figure 11 It is a schematic structural diagram of the adjusting mechanism in the lifting adjustment device of the present invention.

[0026] Figure 12 For Figure 10 sectional view taken along the line C-C in

[0027] Figure 13 It is a schematic structural diagram of the anti-sway pulley device in the present invention.

[0028] Figure 14 It is a schematic structural diagram of the inner fan limit lifting pulley device in the present invention.

[0029] Figure 15This is another perspective structural schematic diagram of the inner fan limit lifting pulley device in the present invention.

[0030] Figure 16 This is the structural schematic diagram of the limit lifting pulley device for the outer fan of the casement lifting window in the present invention.

[0031] Figure 17 This is the structural schematic diagram of the limit lifting pulley device for the outer fan of the casement lifting window in the present invention.

[0032] Figure 18 This is the structural schematic diagram of the safety locator in the present invention.

[0033] Figure 19 This is the structural schematic diagram of the mounting seat cooperating with the positioning post in the present invention.

[0034] In the figure:

[0035] Load-bearing pulley device 100

[0036] Mounting plate 10, guiding surface 101

[0037] Mounting surface 102, sinking groove 103

[0038] Stop block 104, channel 105

[0039] Pulley 11, guiding groove 12

[0040] Axle 13, first limiting part 131

[0041] Second limiting part 132, first bearing 14

[0042] Inner ring 141 of the first bearing, outer ring 142 of the first bearing

[0043] Lifting and adjusting device 200

[0044] Mounting base plate 20, first surface 201

[0045] Second surface 202, first sliding groove 203

[0046] Second sliding groove 204, first through groove 205

[0047] Guide post 206, lock hole 207

[0048] First strip-shaped groove 208, second strip-shaped groove 209

[0049] Roller 21, guiding groove 210

[0050] Guiding bearing 22, inner ring 221 of the guiding bearing

[0051] Outer ring 222 of the guiding bearing, rotating shaft 23

[0052] The first limiting block 231 and the second limiting block 232

[0053] The slide plate 24 and the vertical guide groove 240

[0054] The adjusting part 241 and the screw hole 242

[0055] The first baffle 243 and the second baffle 244

[0056] The bottom wall 251 and the top wall 252

[0057] The guiding side wall 253 and the opening 254

[0058] The adjusting groove 255 and the spring 256

[0059] The cover plate 257 and the adjusting screw 26

[0060] The nut end 261 and the screw rod end 262

[0061] The anti-sway pulley device 300

[0062] The mounting substrate 30 and the first extension part 301

[0063] The second extension part 302 and the third extension part 303

[0064] The first mounting arm 304 and the second mounting arm 305

[0065] The first mounting lug 306 and the second mounting lug 307

[0066] The third mounting lug 308 and the first guide wheel 309

[0067] The second guide wheel 310 and the third guide wheel 311

[0068] The through hole 312

[0069] The inner fan limiting lifting pulley device 400

[0070] The locking part 41 and the locking groove 411

[0071] The guiding part 42 and the receiving groove 421

[0072] The end face 422 and the rope threading groove 423

[0073] The clamping groove 424 and the fixing column 425

[0074] The clamping part 431

[0075] The connecting part 432 and the elastic part 433

[0076] The first hinge lug 434 and the second hinge lug 435

[0077] The pin shaft 436 and the guide wheel 44

[0078] Chuck 45, first shaft hole 451

[0079] Second shaft hole 452, pressure plate 46

[0080] First longitudinal plate 461, second longitudinal plate 462

[0081] Cross plate 463, through bolt hole 464

[0082] Limit lifting pulley device 500 for the sash of a casement window

[0083] Guide surface 501

[0084] Mounting surface 502, connecting side wall 503

[0085] Rope passing groove 504, second perforation 505

[0086] Inlay groove 51, entrance 511

[0087] Exit 512, embedding part 521

[0088] Guide support part 522, cantilever part 523

[0089] First support arm 524, second support arm 525

[0090] Guide pin 526, guide wheel body 53

[0091] First lock block 541, second lock block 542

[0092] First perforation 543, locking screw 544

[0093] Safety locator 600

[0094] Mounting base 60, positioning column 61

[0095] Guide hole 611, first positioning part 612

[0096] Second positioning part 613, guide inclined surface 614

[0097] Support platform 615, positioning pin 62

[0098] Positioning cap 621, positioning strip 622

[0099] Circular groove 623, snap ring 624

[0100] Spring 63, seat 64

[0101] First screw hole column 641, first screw 642

[0102] Second screw hole column 643, second screw 644

[0103] Cover plate 645

[0104] Fixed frame 701 Mounting frame 702

[0105] Outer fan 703 Inner fan 704

[0106] Handle 705 Stop block 706

[0107] Positioning switch piece 707 Positioning hole 708

[0108] Rope body 800 Specific implementation manner

[0109] In order to further explain the technical solution of the present invention, the following will be elaborated in detail in combination with embodiments.

[0110] Refer to Figures 1 to 19 , the energy-saving casement lifting door and window, including a mounting frame 702, an inner fan 704 and an outer fan 703 that are slidably arranged up and down in the mounting frame 702. Corresponding sliding grooves are provided in the mounting frame 702 to limit and guide the inner fan 704 and the outer fan 703. A load-bearing pulley device 100 is provided in the mounting frame 702, a rope body 800 is wound around the load-bearing pulley device 100, the inner fan 704 and the outer fan 703 are respectively connected to the rope body 800, the inner fan 704 and the outer fan 703 are located on both sides of the rope body 800, and a lifting and adjusting device is further provided in the mounting frame 702. The lifting and adjusting device is provided with rollers 21 and an adjusting mechanism for adjusting the up and down positions of the rollers 21. The rollers 21 are located below the load-bearing pulley device 100, and the rope body 800 is wound around the load-bearing pulley device 100 and the rollers 21 to form a closed loop.

[0111] The lifting and adjusting device 200 of the present invention includes a mounting substrate 20 and a sliding plate 24 movably arranged on the mounting substrate 20. A rotating shaft 23 is provided on the sliding plate 24, and the rollers 21 rotatably mounted on the rotating shaft 23. The rotating shaft 23 is arranged perpendicular to the sliding plate 24. A guiding groove 210 for guiding the rope body 800 is provided on the rollers 21. The guiding groove 210 is arranged along the circumferential direction of the rollers 21. An adjusting mechanism for driving the sliding plate 24 to adjust its up and down position is provided on the mounting substrate 20. By adjusting the adjusting mechanism, the sliding plate 24 is moved up and down, thereby driving the rollers 21 to move up and down. When the rollers 21 move downward, the rope body 800 can be tensioned.

[0112] As a preferred embodiment of the present invention, the adjusting mechanism is an adjusting screw 26. The adjusting screw 26 has a screw end 262 and a nut end 261. An adjusting groove 255 is provided on the mounting substrate 20. The adjusting groove 255 has a top wall 252 for restricting the nut end 261 from slipping out, a bottom wall 251, and guiding side walls 253 disposed between the top wall 252 and the bottom wall 251. The slide plate 24 has an adjusting portion 241 extending into the adjusting groove 255 and movable along the guiding side walls 253. The adjusting portion 241 is perpendicularly disposed with respect to the mounting substrate 20. The nut end 261 of the adjusting screw 26 is disposed corresponding to the top wall 252, and the screw end 262 of the adjusting screw 26 is disposed corresponding to the bottom wall 251. An opening 254 is provided on the top wall 252 for a adjusting tool to extend to the nut end 261 to screw the adjusting screw 26. A threaded hole 242 cooperating with the adjusting screw 26 is provided on the adjusting portion 241, and the adjusting screw 26 is inserted through the threaded hole 242. During adjustment, the adjusting screw 26 is rotated by an adjusting tool (such as a hex wrench). When the screw end 262 of the adjusting screw 26 advances towards the bottom wall 251 and abuts against the bottom wall 251, and the adjusting screw 26 continues to be rotated, the adjusting screw 26 rotates on the bottom wall 251 and cannot continue to advance. At this time, as the adjusting screw 26 rotates, the adjusting portion 241 moves upward, thereby driving the slide plate 24 to move upward. When the adjusting screw 26 is rotated, when the screw end 262 of the adjusting screw 26 disengages from the bottom wall 251 and the nut end 261 of the adjusting screw 26 advances towards the top wall 252, the adjusting screw 26 abuts against the top wall 252 and rotates. At this time, the adjusting portion 241 moves towards the bottom wall 251 direction, thereby driving the slide plate 24 to move downward. For better guiding, a vertical guiding groove 240 is provided on the slide plate 24, and a guide post 206 that can slide in the vertical guiding groove 240 is provided on the mounting substrate 20.

[0113] As a preferred embodiment of the present invention, the adjusting portion 241, the bottom wall 251, and the top wall 252 are parallel to each other. There are two guiding side walls 253, and both of the two guiding side walls 253 are perpendicularly disposed with respect to the bottom wall 251. The present invention further includes a cover plate 257. The bottom wall 251, the top wall 252, the two guiding side walls 253, and the cover plate 257 enclose a trough body with an opening. The inner cavity of the trough body is the adjusting groove 255 of the present application.

[0114] As a preferred embodiment of the present invention, a spring 256 is provided between the adjusting portion 241 and the bottom wall 251. The spring 256 applies a certain elastic force to the adjusting portion 241, which has the effect of preventing the adjusting portion 241 from loosening by itself.

[0115] As a preferred embodiment of the present invention, the mounting substrate 20 has a first surface 201 and a second surface 202 that are parallel to each other. The first surface 201 and the second surface 202 are connected through a first through groove 205. The rotating shaft 23 is inserted into the first through groove 205 and can slide in the first through groove 205. The roller 21 is located on the first surface 201, the sliding plate 24 is located on the second surface 202, and the adjusting portion 241 extends from the second surface 202 into the adjusting groove 255.

[0116] As a preferred embodiment of the present invention, the first surface 201 is provided with a first sliding groove 203 for guiding the movement of the roller 21, and the second surface 202 is provided with a second sliding groove 204 for guiding the movement of the sliding plate 24. The extending directions of the first sliding groove 203, the second sliding groove 204, and the adjusting groove 255 are the same.

[0117] As a preferred embodiment of the present invention, the sliding plate 24 is further provided with a first baffle 243 and a second baffle 244. It also includes a first strip-shaped groove 208 and a second strip-shaped groove 209. Both the first strip-shaped groove 208 and the second strip-shaped groove 209 are arranged vertically in the first sliding groove 203. Both the first strip-shaped groove 208 and the second strip-shaped groove 209 penetrate from the first surface 201 to the second surface 202. The first baffle 243 and the second baffle 244 are respectively inserted into the first strip-shaped groove 208 and the second strip-shaped groove 209. A limiting channel for the rope body 800 to pass through is formed between the first baffle 243 and the guiding groove 210, and a limiting channel for the rope body 800 to pass through is formed between the second baffle 244 and the guiding groove 210. The gap between the first baffle 243 and the end of the roller 21 is smaller than the diameter of the rope body 800, ensuring that the rope body 800 will not slip out from this gap. The gap between the second baffle 244 and the end of the roller 21 is smaller than the diameter of the rope body 800, ensuring that the rope body 800 will not slip out from this gap.

[0118] As a preferred embodiment of the present invention, a guiding bearing 22 is provided inside the roller 21. The guiding bearing 22 includes an inner ring and an outer ring that cooperate with each other. The roller 21 is sleeved on the outer ring 222 of the guiding bearing, and the inner ring 221 of the guiding bearing is sleeved on the rotating shaft 23.

[0119] As a preferred embodiment of the present invention, first limiting blocks 231 and second limiting blocks 232 are respectively formed at both ends of the rotating shaft 23. The first limiting block 231 is arranged corresponding to the sliding plate 24 and is formed by riveting the end of the rotating shaft 23. The second limiting block 232 is arranged corresponding to the guiding bearing 22, and the second limiting block 232 is an annular convex block formed at the end of the rotating shaft 23.

[0120] As a preferred embodiment of the present invention, the mounting substrate 20 is provided with a plurality of locking holes 207. The locking holes 207 penetrate from the first surface 201 to the second surface 202. With the help of the locking holes 207, the lifting and adjusting device of the present invention can be installed on the corresponding carrier.

[0121] The present invention also provides an inner fan limiting lifting pulley device 400. The inner fan limiting lifting pulley device is connected to the rope body 800. It includes a locking part 41 and a guiding part 42 provided on the locking part 41. In the embodiment, the locking part 41 and the guiding part 42 are integrally formed. The locking part 41 is in a block shape. The locking part 41 is installed on the inner fan 704. A rope passing groove 423 for the rope body to pass through is formed on the guiding part 42. The rope passing groove 423 extends in the vertical direction. A positioning mechanism for fixing the rope body in the guiding part 42 is also provided on the guiding part 42. A guiding wheel 44 is provided on the guiding part 42. The guiding wheel 44 is rotatably arranged on the guiding part 42. The guiding wheel 44 abuts against the mounting frame 702.

[0122] As a preferred embodiment of the present invention, a clamping groove 424 is provided on the guiding part 42. The clamping groove 424 is opened from one end face 422 of the guiding part 42 to the other end face, specifically in the horizontal direction. The guiding wheel 44 is arranged on a clamping block, and the clamping block is detachably clamped in the clamping groove 424.

[0123] As a preferred embodiment of the present invention, the clamping block includes a clamping part 431, a connecting part 432 and an elastic part 433. The clamping part 431, the connecting part 432 and the elastic part 433 are integrally formed nylon blocks. The clamping part 431 is arranged in the clamping groove 424. The connecting part 432 is arranged along the outer wall of the guiding part 42. One end of the elastic part 433 is connected to the connecting part 432. The elastic part 433 and the connecting part 432 are arranged at an angle, and this angle is an acute angle. The guiding wheel 44 is installed at the other end of the elastic part 433. The connecting part 432 is connected to the elastic part 433. The guiding wheel 44 extends out of the end face of the guiding part 42 to ensure that the guiding part 42 does not contact the movable frame during sliding. When the elastic part 433 is pressed, it can generate a certain deformation, so that the guiding wheel 44 can abut against the mounting frame 702 with a certain pressure, and the door leaf or window sash is not easy to swing left and right. The clamping block is detachably clamped through the clamping groove 424. After the guiding wheel 44 is worn or the elasticity of the elastic part fails, the clamping block can be directly removed and replaced without disassembling the entire device of the present invention, which is convenient for maintenance and can reduce costs at the same time.

[0124] As a preferred embodiment of the present invention, a first hinge lug 434 and a second hinge lug 435 are provided on the elastic part 433. The guiding wheel 44 is installed between the first hinge lug 434 and the second hinge lug 435 through a pin shaft 436. The pin shaft 436 is arranged in the horizontal direction.

[0125] As a preferred embodiment of the present invention, the cross-section of the card slot 424 along the circumferential direction is an inverted "T" shape, and the cross-section of the card block along the circumferential direction is an inverted "T" shape. This structure can limit the displacement of the card block relative to the card slot 424 in the up and down directions, and the card block is pushed into the card slot 424 from the horizontal direction.

[0126] As a preferred embodiment of the present invention, a receiving groove 421 is provided in the guiding portion 42. The positioning mechanism includes a card head 45 for fixing the rope body, a pressing piece 46 for pressing the card head 45 against the receiving groove 421, and a locking screw (not shown in the figure) for locking the pressing piece 46 on the locking portion 41. The rope passing groove 423 extends from the receiving groove 421 to the outer wall of the guiding portion 42.

[0127] As a preferred embodiment of the present invention, the rope passing groove 423 and the card slot 424 are arranged in a staggered manner. The card head 45 includes a metal base block, and the metal base block is provided with a first shaft hole 451 and a second shaft hole 452 for passing the rope body 800. The first shaft hole 451 and the second shaft hole 452 are arranged in parallel, and both the first shaft hole 451 and the second shaft hole 452 penetrate from one end to the other end of the axial direction of the metal base block. During installation, the rope body 800 passes through the first shaft hole 451, is bent, and then passes through the second shaft hole 452. After that, the metal base block is clamped so that the rope body 800 is clamped in the first shaft hole 451 and the second shaft hole 452. The pressing piece 46 includes a transverse plate 463, a first longitudinal plate 461, and a second longitudinal plate 462. The first longitudinal plate 461 and the second longitudinal plate 462 are respectively arranged at both ends of the transverse plate 463 and are both perpendicular to the transverse plate 463. A fixing column 425 is provided in the receiving groove 421, and a through hole 464 for the nail is provided on the transverse plate 463. The locking screw passes through the through hole 464 and locks the transverse plate 463 on the fixing column 425, so that the first longitudinal plate 461 and the second longitudinal plate 462 respectively press against the two card heads 45, thereby positioning the rope body 800 on the inner fan limit lifting pulley device 400.

[0128] As a preferred embodiment of the present invention, there are two card slots 424, and the two card slots 424 are respectively arranged at both ends of the guiding portion 42 along the length direction, and each card slot 424 is provided with a guiding wheel 44.

[0129] As a preferred embodiment of the present invention, the locking portion 41 is provided with a plurality of locking grooves 411 for assisting the installation of the locking portion 41.

[0130] The present invention also provides a limit lifting pulley device 500 for the outer sash of a casement lifting window. The limit lifting pulley device 500 for the outer sash of a casement lifting window is connected to a rope body 800. It includes a mounting block and a guide wheel body 53 rotatably arranged on the mounting block. The mounting block is mounted on the outer sash 703. An embedding groove 51 is provided on the mounting block. The embedding groove 51 extends in the horizontal direction. The guide wheel body 53 is rotatably arranged on an embedding block, and the embedding block is clamped in the embedding groove 51. The mounting block is fixed on one side of the outer sash 703 close to the mounting frame 702, and the guide wheel body 53 abuts against the inside of the mounting frame 702.

[0131] As a preferred embodiment of the present invention, the mounting block has a mounting surface 502, a guiding surface 501, and an abutting side wall 503 formed between the mounting surface 502 and the guiding surface 501. The embedding groove 51 extends from the mounting surface 502 to the guiding surface 501. The embedding groove 51 has an entrance 511 for the embedding block to be inserted and a limiting platform (located inside the mounting block, not shown) for restricting the sliding of the embedding block to the mounting surface 502. The embedding groove 51 extends to the abutting side wall 503 and forms an exit 512 on the abutting side wall 503 for the embedding block to protrude.

[0132] As a preferred embodiment of the present invention, the cross-section of the embedding groove 51 along the circumferential direction is in an inverted "T" shape.

[0133] As a preferred embodiment of the present invention, the embedding block includes an embedding portion 521, a guiding and supporting portion 522, and a cantilever portion 523. The embedding portion 521, the guiding and supporting portion 522, and the cantilever portion 523 are integrally formed. The guide wheel body 53 is mounted at the end of the cantilever portion 523. The cantilever portion 523 and the guiding and supporting portion 522 are arranged at an angle, specifically, the angle is an acute angle. The guiding and supporting portion 522 is arranged along the abutting side wall 503. The guide wheel body 53 protrudes from the guiding surface 501 for guiding the outer sash 703 to slide in the mounting frame 702, and the mounting block does not contact the mounting frame 702.

[0134] As a preferred embodiment of the present invention, the end of the cantilever portion 523 is provided with a first support arm 524 and a second support arm 525. Guide pins 526 are provided on the first support arm 524 and the second support arm 525. The guide wheel body 53 is mounted on the guide pins 526.

[0135] As a preferred embodiment of the present invention, the mounting block is further provided with a rope passing groove 504 for the rope body 800 to pass through. The rope passing groove 504 penetrates from one side of the abutting side wall 503 to the other side.

[0136] As a preferred embodiment of the present invention, a locking block is embedded in the rope passing groove 504. The locking block includes a first locking block 541 and a second locking block 542. The rope body 800 passes between the first locking block 541 and the second locking block 542, and the locking block is locked in the rope passing groove 504 by a locking screw 544.

[0137] As a preferred embodiment of the present invention, a first through hole 543 is provided on the locking block, and a second through hole 505 corresponding to the first through hole 543 is provided on the mounting block. The first through hole 543 penetrates to the mounting surface 502. In use, first place the first locking block 541, pass the rope body 800 through the surface of the first locking block 541, place the second locking block 542, the rope body 800 is located between the first locking block 541 and the second locking block 542, pass the locking screw 544 through the first through hole 543 and the second through hole 505, and lock the mounting block, the first locking block 541 and the second locking block 542 on the outer fan 703.

[0138] As a preferred embodiment of the present invention, anti-sway pulley devices 300 are provided at the upper ends of both the inner fan 704 and the outer fan 703. Specifically, anti-sway pulley devices 300 can be provided on both the left and right sides of the inner fan 704 and the outer fan 703.

[0139] The anti-sway pulley device 300 of the present invention includes a mounting substrate 30, a first guide wheel 309, a second guide wheel 310, and a third guide wheel 311. The first guide wheel 309 and the second guide wheel 310 are rotatably provided on the mounting substrate 30. The axle of the first guide wheel 309 is parallel to the axle of the second guide wheel 310. In actual installation, the axle of the first guide wheel 309 is parallel to the axle of the second guide wheel 310 and both extend in the left-right direction. The axle of the third guide wheel 311 is perpendicular to the axle of the first guide wheel 309. In actual installation, the axle of the third guide wheel 311 extends in the front-back direction.

[0140] As a preferred embodiment of the present invention, a first extension part 301 perpendicular to the mounting substrate 30 is formed on the mounting substrate 30. First mounting arms 304 and second mounting arms 305 are respectively formed on both sides of the first extension part 301. The first mounting arms 304 and the second mounting arms 305 are arranged at an angle. The first guide wheel 309 is mounted on the first mounting arm 304, and the second guide wheel 310 is mounted on the second mounting arm 305.

[0141] As a preferred embodiment of the present invention, one end of the first mounting arm 304 is connected to the first extension portion 301, and the other end is a free end that can elastically swing slightly, and two first mounting lugs 306 are provided at this end. The first guide wheel 309 is rotatably mounted on the two first mounting lugs 306. One end of the second mounting arm 305 is connected to the second extension portion 302, and the other end is a free end that can elastically swing slightly, and two second mounting lugs 307 are provided at this end. The second guide wheel 310 is rotatably mounted on the two second mounting lugs 307.

[0142] As a preferred embodiment of the present invention, the mounting substrate 30 is further provided with a second extension portion 302. The second extension portion 302 is perpendicularly connected to the mounting substrate 30. A third extension portion 303 is provided at the end of the second extension portion 302. The third extension portion 303 is parallel to the mounting substrate 30. The third guide wheel 311 is mounted on the third extension portion 303, and the third extension portion 303 can elastically swing slightly relative to the second extension portion 302.

[0143] As a preferred embodiment of the present invention, two third mounting lugs 308 are provided on the third extension portion 303, and the third guide wheel 311 is rotatably mounted in the two third mounting lugs 308.

[0144] In the embodiment, the mounting substrate 30, the first extension portion 301, the second extension portion 302, the third extension portion 303, the first mounting arm 304, and the second mounting arm 305 are integrally formed from a metal sheet (such as stainless steel) having a certain strength and elasticity.

[0145] As a preferred embodiment of the present invention, the first extension portion 301 and the second extension portion 302 are provided at both ends of the mounting substrate 30. The first guide wheel 309 and the second guide wheel 310 respectively protrude from both sides of the mounting substrate 30. The third guide wheel 311 is located on the left or right side of the first guide wheel 309.

[0146] As a preferred embodiment of the present invention, the mounting substrate 30 is provided with a plurality of through holes 312 for assisting in locking the mounting substrate 30, and the inner fan 704 or the outer fan 703 of the present application is locked through the through holes 312.

[0147] As a preferred embodiment of the present invention, a positioning switch piece 707 is provided on the inner fan 704 or the outer fan 703. A positioning hole 708 is provided on the positioning switch piece 707. A safety positioner 600 that cooperates with the positioning switch piece 707 is provided on the mounting frame 702. In the present invention, the number of the positioning switch pieces 707 can be selected as needed, and two or three pieces can be selected to position the inner fan 704 or the outer fan 703 at a specific position, playing a role in ventilation and anti-falling.

[0148] The safety locator 600 of the present invention includes a mounting base 60 and a positioning pin 62 disposed on the mounting base 60. A positioning post 61 is provided on the mounting base 60. The positioning post 61 is perpendicularly installed on the mounting base 60. The positioning post 61 is provided with a guiding hole 611. The guiding hole 611 is arranged along the axial direction of the positioning post 61. The positioning pin 62 is rotatable in the circumferential direction and axially movable and is inserted into the guiding hole 611. The positioning switch piece 707 cooperates with the positioning pin 62 to achieve the positioning of the inner fan 704 or the outer fan 703. A support platform 615 is provided in the guiding hole 611. A latching portion is provided on the positioning pin 62. An elastic member is sleeved on the positioning pin 62. One end of the elastic member corresponds to the support platform 615, and the other end corresponds to the latching portion. A first positioning portion 612 and a second positioning portion 613 are provided at the end of the positioning post 611. A positioning cap 621 is provided on the positioning pin 62. One end of the positioning pin 62 is a free end for telescopic positioning. The other end of the positioning pin 62 is fixed to the positioning cap 621. A positioning strip 622 capable of switching positions between the first positioning portion 612 and the second positioning portion 613 is provided on the positioning cap 621.

[0149] As a preferred embodiment of the present invention, the first positioning portion 612 and the second positioning portion 613 are arranged offset in the circumferential direction of the positioning post 61. The first positioning portion 612 and the second positioning portion 613 are arranged at different axial positions of the positioning post 61. The first positioning portion 612 and the second positioning portion 613 are connected by a guiding inclined surface 614. When in use, when the positioning strip 622 moves axially and rotates circumferentially, the positioning strip 622 is thus latched into the first positioning portion 612 and the second positioning portion 613, thereby realizing the adjustment of the axial position of the positioning pin 62.

[0150] As a preferred embodiment of the present invention, the first positioning portion 612 is a V-shaped groove provided on the side wall of the positioning post 61. The V-shaped groove extends along the axial direction of the positioning post. The second positioning portion 613 is a limiting groove provided at the end of the positioning post 61. When in use, the positioning cap 621 is rotated, and the positioning strip 622 slides in the guiding inclined surface 614, thereby realizing the axial movement of the positioning pin 62, so that the positioning strip 622 slides from the first positioning portion 612 into the second positioning portion 613 or slides from the second positioning portion 613 into the first positioning portion 612.

[0151] As a preferred embodiment of the present invention, both the first positioning portion 612 and the second positioning portion 613 are two. The two first positioning portions 612 are arranged at both radial ends of the positioning post 61. The two second positioning portions 613 are arranged at both radial ends of the positioning post 61.

[0152] As a preferred embodiment of the present invention, there are two positioning strips 622 , which are arranged on the inner wall of the positioning cap 621 , and are arranged at two ends of the positioning cap 621 in the radial direction.

[0153] As a preferred embodiment of the present invention, an annular groove 623 is provided on the positioning pin 62 , and the engaging portion is a clamping ring 624 engaged in the annular groove 623 .

[0154] As a preferred embodiment of the present invention, the elastic component is a spring 63, one end of the spring 63 abuts against the retaining ring 624, and the other end abuts against the support platform 615. When the positioning bar 622 slides from the first positioning portion 612 to the second positioning portion 613, the retaining ring 624 will compress the spring 63. Under the action of the spring 63, the positioning cap 621 will not loosen automatically. When the positioning bar 622 slides from the second positioning portion 613 to the first positioning portion 612, the spring 63 can push the positioning pin 62 to move axially.

[0155] As a preferred embodiment of the present invention, a holder 64 is provided in the mounting seat 60, a first screw hole column 641 is provided in the holder 64, a first screw 642 is provided in the first screw hole column 641, the first screw 642 extends out of the mounting seat 60, and the safety locator 600 of the present invention is installed at the corresponding position of the door and window through the first screw 642.

[0156] As a preferred embodiment of the present invention, a second screw hole column 643 is further provided in the holder 64 , and a cover plate 645 is provided on the mounting seat 60 , and the cover plate 645 is locked in the second screw hole column 643 by a second screw 644 .

[0157] As a preferred embodiment of the present invention, it further comprises a fixed frame 701, the installation frame 702 is installed on the fixed frame 701 through a hinge so as to be pushed and pulled inward and outward to open, a handle 705 is provided on the installation frame 702 to facilitate the opening of the installation frame 702, and in order to limit the opening degree of the inner and outer leaves, a corresponding stop block 706 is provided on the fixed frame 701, and the inner or outer leaves are limited when they move to the position of the stop block 706. The present invention can also provide a corresponding safety net on the installation frame 702 as needed.

[0158] The casement lifting door and window of the present invention has smooth and noiseless lifting of the window sash and has excellent air tightness, water tightness and safety.

[0159] The product form of the present invention is not limited to the embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. Energy-saving casement lifting doors and windows, comprising an installation frame, an inner sash and an outer sash that are slidably arranged up and down within the installation frame, a load-bearing pulley device is provided within the installation frame, a rope body is wound around the load-bearing pulley device, the inner sash and the outer sash are respectively connected to the rope body, and the inner sash and the outer sash are located on both sides of the rope body, characterized in that: It further includes a lifting and adjusting device disposed within the installation frame. The lifting and adjusting device is provided with rollers and an adjusting mechanism for adjusting the vertical position of the rollers. The rollers are located below the load-bearing pulley device, and the rope body is wound around the load-bearing pulley device and the rollers to form a closed loop. The lifting and adjusting device includes an installation base plate and a sliding plate movably disposed on the installation base plate. A rotating shaft is provided on the sliding plate, and the roller is rotatably mounted on the rotating shaft. A guiding groove for guiding the rope body is provided on the roller. The adjusting mechanism is disposed on the installation base plate for driving the sliding plate to adjust its vertical position. The adjusting mechanism is an adjusting screw, which has a screw end and a nut end. An adjusting groove is provided on the installation base plate. The adjusting groove has a top wall, a bottom wall for restricting the nut end from slipping out, and guiding side walls disposed between the top wall and the bottom wall. The sliding plate has an adjusting portion extending into the adjusting groove and capable of moving along the guiding side walls. The nut end of the adjusting screw is disposed corresponding to the top wall, and the screw end of the adjusting screw is disposed corresponding to the bottom wall. An opening is provided on the top wall for a adjusting tool to extend to the nut end to screw the adjusting screw. A threaded hole cooperating with the adjusting screw is provided on the adjusting portion, and the adjusting screw is inserted through the threaded hole. The adjusting portion, the bottom wall, and the top wall are parallel to each other. There are two guiding side walls, and both guiding side walls are perpendicular to the bottom wall. A spring is provided between the adjusting portion and the bottom wall. The installation base plate has a first surface and a second surface that are parallel to each other, and the first surface and the second surface are connected through a first through groove. The roller is located on the first surface, and the sliding plate is located on the second surface. The adjusting portion extends into the adjusting groove from the second surface. A first sliding groove for guiding the movement of the roller is provided on the first surface, and a second sliding groove for guiding the movement of the sliding plate is provided on the second surface. The extending directions of the first sliding groove, the second sliding groove, and the adjusting groove are the same. First and second baffles are further provided on the sliding plate. It also includes a first strip-shaped groove and a second strip-shaped groove, both of which penetrate from the first surface to the second surface. The first and second baffles are respectively inserted through the first and second strip-shaped grooves. A limiting channel for the rope body to pass through is formed between the first baffle and the guiding groove, and a limiting channel for the rope body to pass through is formed between the second baffle and the guiding groove. An inner fan limiting lifting pulley device is connected to the rope body. The inner fan limiting lifting pulley device includes a locking portion and a guiding portion provided on the locking portion. A rope-passing groove for the rope body to pass through is formed on the guiding portion. A positioning mechanism for fixing the rope body in the guiding portion is further provided on the guiding portion. A guiding wheel is provided on the guiding portion, and the guiding wheel is rotatably disposed on the guiding portion. The locking portion is fixed to one side of the inner fan close to the installation frame, and the guiding wheel abuts against the inside of the installation frame. A clamping groove is provided on the guiding portion, the guiding wheel is arranged on a clamping block, the clamping block is detachably clamped in the clamping groove, the clamping block includes a clamping portion, a connecting portion and an elastic portion, the clamping portion is arranged in the clamping groove, the connecting portion is arranged along the outer wall of the guiding portion, one end of the elastic portion is connected to the connecting portion, the elastic portion and the connecting portion are arranged at an angle, the guiding wheel is installed at the other end of the elastic portion, the connecting portion is connected to the elastic portion, and the guiding wheel extends out of the end face of the guiding portion. A flat-opening lifting window outer sash limit lifting and lowering pulley device is connected to the rope body. The flat-opening lifting window outer sash limit lifting and lowering pulley device includes a mounting block and a guide wheel body rotatably arranged on the mounting block. An embedding groove is provided on the mounting block, the guide wheel body is rotatably arranged on an embedding block, the embedding block is clamped in the embedding groove, the mounting block is fixed on one side of the outer sash close to the mounting frame, and the guide wheel body abuts against the inside of the mounting frame. Anti-swing pulley devices are provided at the upper ends of both the inner sash and the outer sash. The anti-swing pulley device includes a mounting base plate, a first guide wheel, a second guide wheel and a third guide wheel. The first guide wheel and the second guide wheel are both rotatably arranged on the mounting base plate. The wheel axle of the first guide wheel is arranged parallel to the wheel axle of the second guide wheel. The wheel axle of the third guide wheel is arranged perpendicular to the wheel axle of the first guide wheel. A first extension portion perpendicular to the mounting base plate is formed on the mounting base plate. First mounting arms and second mounting arms are respectively formed on both sides of the first extension portion. The first mounting arms and the second mounting arms are arranged at an angle. The first guide wheel is installed on the first mounting arm, and the second guide wheel is installed on the second mounting arm. A positioning switch piece is provided on either the inner sash or the outer sash. A positioning hole is provided on the positioning switch piece. A safety positioner cooperating with the positioning switch piece is provided on the mounting frame. The safety positioner includes a mounting seat and a positioning pin arranged on the mounting seat. A positioning column is provided on the mounting seat. The positioning column is provided with a guiding hole. The guiding hole is arranged along the axial direction of the positioning column. The positioning pin is circumferentially rotatable and axially movable through the guiding hole. A supporting platform is provided in the guiding hole. A clamping portion is provided on the positioning pin. An elastic member is sleeved on the positioning pin. One end of the elastic member corresponds to the supporting platform, and the other end corresponds to the clamping portion. A first positioning portion and a second positioning portion are provided at the end of the positioning column. A positioning cap is provided on the positioning pin. A positioning strip capable of switching positions between the first positioning portion and the second positioning portion is provided on the positioning cap.

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