Lifting and adjusting devices and doors and windows

Abstract

The present invention relates to a lifting and adjusting device, comprising a mounting base and a slide movably mounted on the mounting base. The slide is provided with a rotating shaft and a roller rotatably mounted on the rotating shaft. The roller is provided with a guide groove for guiding a rope. The mounting base is provided with an adjustment mechanism for driving the slide for vertical position adjustment. Using the technical solution of the present invention, the roller is movably mounted on the mounting base, guiding the sliding of the rope. The roller can also be adjusted vertically via the adjustment mechanism. The position of the roller can be adjusted directly on the mounting base, which offers the advantage of convenient operation. The present invention also provides doors and windows that utilize the lifting and adjusting device.

Description

Technical Field

[0001] The invention relates to a lifting and regulating device and a door and window. Background Art

[0002] Traditional doors and windows include casement and sliding types, each with its own advantages and disadvantages. There are also doors and windows with both casement and sliding functions available on the market. Traditional casement and lift doors and windows generally include a fixed frame and a movable frame that is movably mounted within the fixed frame (the movable frame can, for example, be hingedly mounted to the fixed frame). The movable frame houses an outer sash and an inner sash, both of which are slidably mounted within the movable frame via guide wheels. A fixed pulley is located within the movable frame, with a steel wire rope wound around the fixed pulley. The inner and outer sashes are connected at both ends of the steel wire rope, and the fixed pulley further enables the inner and outer sashes to move in a coordinated manner.

[0003] In traditional casement doors and windows, the wire rope is wound around a fixed pulley. Once the fixed pulley is locked, its position is difficult to adjust. To position the inner and outer sashes at a certain position, the friction between the inner and outer sashes and the movable frame needs to be reasonably adjusted, and high processing precision is required.

[0004] In view of this, the inventors conducted in-depth research on the above-mentioned issues, and thus came up with this case. Summary of the Invention

[0005] An object of the present invention is to provide a lifting and adjusting device with easy roller adjustment. Another object of the present invention is to provide doors and windows using the lifting and adjusting device.

[0006] In order to achieve the above object, the present invention adopts such technical solution:

[0007] The lifting and lowering adjustment device includes a mounting base and a slide movably arranged on the mounting base. The slide is provided with a rotating shaft and a roller rotatably mounted on the rotating shaft. The roller is provided with a guide groove for guiding the rope body. The mounting base is provided with an adjustment mechanism for driving the slide to adjust the up and down position.

[0008] As a preferred embodiment of the present invention, the adjustment mechanism is an adjusting screw, the adjusting screw has a screw end and a nut end, an adjustment groove is provided on the mounting base plate, the adjustment groove has a top wall and a bottom wall for limiting the nut end from sliding out, and a guide side wall arranged between the top wall and the bottom wall, the slide plate has an adjustment portion that extends into the adjustment groove and can move along the guide side wall, the nut end of the adjusting screw is arranged corresponding to the top wall, and the screw end of the adjusting screw is arranged corresponding to the bottom wall, an opening is provided on the top wall for an adjusting tool to extend to the nut end to screw the adjusting screw, a screw hole is provided on the adjusting portion to cooperate with the adjusting screw, and the adjusting screw is passed through the screw hole.

[0009] As a preferred embodiment of the present invention, the adjusting portion, the bottom wall and the top wall are arranged in parallel, there are two guide side walls, and both guide side walls are arranged perpendicular to the bottom wall.

[0010] As a preferred embodiment of the present invention, a spring is provided between the adjusting portion and the bottom wall.

[0011] As a preferred embodiment of the present invention, the mounting substrate has a first surface and a second surface parallel to each other, the first surface and the second surface are connected by a first through groove, the roller is located on the first surface, the slide is located on the second surface, and the adjustment portion extends from the second surface into the adjustment groove.

[0012] As a preferred embodiment of the present invention, the first surface is provided with a first sliding groove for guiding the movement of the roller, and the second surface is provided with a second sliding groove for guiding the movement of the slide. The extension directions of the first sliding groove, the second sliding groove and the adjustment groove are the same.

[0013] As a preferred embodiment of the present invention, the slide plate is further provided with a first baffle and a second baffle, and also includes a first strip groove and a second strip groove, both of which extend from the first surface to the second surface, and the first baffle and the second baffle are respectively inserted into the first strip groove and the second strip groove, and a limiting channel for the rope body to pass through is formed between the first baffle and the guide groove, and a limiting channel for the rope body to pass through is formed between the second baffle and the guide groove.

[0014] As a preferred embodiment of the present invention, a guide bearing is provided in the roller, the guide bearing comprises an inner ring and an outer ring which cooperate with each other, the roller is sleeved on the outer ring of the guide bearing, and the inner ring of the guide bearing is sleeved on the rotating shaft.

[0015] As a preferred embodiment of the present invention, the ends of the rotating shaft are provided with a first limit block and a second limit block, respectively, the first limit block is provided corresponding to the slide plate, and the second limit block is provided corresponding to the guide bearing. As a preferred embodiment of the present invention, the mounting base plate is provided with a plurality of lock holes, which extend from the first surface to the second surface.

[0016] The present invention also proposes a door and window, comprising an installation frame, an inner sash and an outer sash which are slidably arranged in the installation frame up and down, a load-bearing pulley device is provided in 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, the inner sash and the outer sash are located on both sides of the rope body, and also includes a lifting and adjusting device arranged in the installation frame, the lifting and adjusting device includes a mounting base and a slide plate movably arranged on the mounting base plate, the slide plate is provided with a rotating shaft and a roller rotatably mounted on the rotating shaft, the roller is provided with a guide groove for guiding the rope body, and an adjusting mechanism for driving the slide plate to adjust the up and down position is provided on the mounting base plate, the mounting base plate is fixed in the installation frame, and the rope body is wound around the roller.

[0017] With the technical solution of the present invention, a roller is movably mounted on a mounting base, used to guide the sliding of the rope body. The roller can also be adjusted up and down via an adjustment mechanism. Adjusting the roller's position directly on the mounting base offers the advantage of convenient operation. The present invention also provides doors and windows employing this lifting and lowering adjustment device. Furthermore, the present invention provides an adjustment slot on the mounting base, allowing the roller's position to be adjusted simply by turning an adjustment screw with a tool, resulting in a simple structure and easy adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the coordinated structure of the load-bearing pulley device, the lifting and adjusting device, the inner sash limiting lifting pulley device, the outer sash limiting lifting pulley device of the casement lifting window and the rope body in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the fixing frame in the present invention.

[0021] Figure 4 It is a structural schematic diagram of the outer fan in the present invention.

[0022] Figure 5 It is a cross-sectional view taken along the line AA in the present invention.

[0023] Figure 6 It is a BB cross-sectional view of the present invention.

[0024] Figure 7 It is a structural schematic diagram of the load-bearing pulley device in the present invention.

[0025] Figure 8 It is a schematic cross-sectional structural diagram of the load-bearing pulley device in the present invention.

[0026] Figure 9 It is a structural schematic diagram of the lifting and adjusting device in the present invention.

[0027] Figure 10 This is a schematic structural diagram of the lifting and lowering adjustment device from another angle of the present invention.

[0028] Figure 11 It is a structural schematic diagram of the adjustment mechanism in the lifting adjustment device of the present invention.

[0029] Figure 12 for Figure 10 Center CC section view.

[0030] Figure 13 Schematic diagram of the structure of the anti-sway pulley device in the present invention.

[0031] Figure 14 It is a structural schematic diagram of the inner door limiting lifting pulley device in the present invention.

[0032] Figure 15 This is a schematic structural diagram from another angle of the inner door limiting lifting pulley device in the present invention.

[0033] Figure 16 It is a structural schematic diagram of the position limiting lifting pulley device for the outer sash of the casement lifting window in the present invention.

[0034] Figure 17 It is a structural schematic diagram of the position limiting lifting pulley device for the outer sash of the casement lifting window in the present invention.

[0035] Figure 18 It is a structural diagram of the safety positioner in the present invention.

[0036] Figure 19 It is a structural schematic diagram of the mounting seat and the positioning column in the present invention.

[0037] In the picture:

[0038] Load-bearing pulley device 100

[0039] Mounting plate 10 Guide surface 101

[0040] Mounting surface 102 Sink 103

[0041] Stopper 104 Channel 105

[0042] Pulley 11 Guide groove 12

[0043] The first limiting portion 131 of the axle 13

[0044] The second limiting portion 132 and the first bearing 14

[0045] Inner ring 141 of the first bearing Outer ring 142 of the first bearing

[0046] Lifting and adjusting device 200

[0047] Mounting substrate 20 first surface 201

[0048] Second surface 202 First sliding groove 203

[0049] Second chute 204 First through groove 205

[0050] Guide post 206 Lock hole 207

[0051] First strip groove 208 Second strip groove 209

[0052] Roller 21 Guide groove 210

[0053] Guide bearing 22 Guide bearing inner ring 221

[0054] Outer ring of guide bearing 222 Rotating shaft 23

[0055] First limiting block 231 Second limiting block 232

[0056] Slide plate 24 vertical guide groove 240

[0057] Adjustment portion 241 Screw hole 242

[0058] First baffle 243 Second baffle 244

[0059] Bottom wall 251 Top wall 252

[0060] Guide side wall 253 opening 254

[0061] Adjustment slot 255 Spring 256

[0062] Cover 257 Adjustment screw 26

[0063] Nut end 261 Screw end 262

[0064] Anti-sway pulley device 300

[0065] Mounting substrate 30 First extension portion 301

[0066] Second extension portion 302 Third extension portion 303

[0067] First mounting arm 304 Second mounting arm 305

[0068] First mounting lug 306 Second mounting lug 307

[0069] Third mounting lug 308 First guide wheel 309

[0070] Second guide wheel 310 Third guide wheel 311

[0071] Through hole 312

[0072] Inner door limit lifting pulley device 400

[0073] Locking portion 41 Locking groove 411

[0074] Guide portion 42 Receiving groove 421

[0075] End surface 422 Rope threading groove 423

[0076] Slot 424 Fixing column 425

[0077] Clamping portion 431

[0078] Connecting portion 432 Elastic portion 433

[0079] First hinge lug 434 Second hinge lug 435

[0080] Pin 436 Guide wheel 44

[0081] Chuck 45 first shaft hole 451

[0082] Second shaft hole 452 pressure plate 46

[0083] First vertical plate 461 Second vertical plate 462

[0084] Horizontal plate 463 nail hole 464

[0085] Casement lifting window outer sash limit lifting pulley device 500

[0086] Guide surface 501

[0087] Mounting surface 502 connects to side wall 503

[0088] Rope groove 504 Second through hole 505

[0089] Mounting slot 51 entrance 511

[0090] Outlet 512 Embedded portion 521

[0091] Guide support portion 522 Cantilever portion 523

[0092] First arm 524 Second arm 525

[0093] Guide pin 526 guide wheel body 53

[0094] First locking block 541 Second locking block 542

[0095] First through hole 543 Locking screw 544

[0096] Safety Positioner 600

[0097] Mounting seat 60 Positioning column 61

[0098] Guide hole 611 First positioning portion 612

[0099] Second positioning portion 613 Guide slope 614

[0100] Support platform 615 positioning pin 62

[0101] Positioning cap 621 Positioning strip 622

[0102] Annular groove 623 Snap ring 624

[0103] Spring 63 Holder 64

[0104] First screw hole column 641 First screw 642

[0105] Second screw hole column 643 Second screw 644

[0106] Cover 645

[0107] Fixed frame 701 Installation frame 702

[0108] External fan 703 Internal fan 704

[0109] Handle 705 Stop block 706

[0110] Positioning switch piece 707 Positioning hole 708

[0111] Rope body 800 DETAILED DESCRIPTION

[0112] In order to further explain the technical solution of the present invention, it is described in detail below with reference to embodiments.

[0113] Reference Figures 1 to 19 The energy-saving casement lifting door and window comprises a mounting frame 702, an inner sash 704 and an outer sash 703 slidably arranged in the mounting frame 702, and corresponding sliding grooves are provided in the mounting frame 702 to limit and guide the inner sash 704 and the outer sash 703. A load-bearing pulley device 100 is provided in the mounting frame 702, and a rope body 800 is wound around the load-bearing pulley device 100. The inner sash 704 and the outer sash 703 are respectively connected to the rope body 800, and the inner sash 704 and the outer sash 703 are located on both sides of the rope body 800. The lifting adjustment device also comprises a roller 21 and an adjustment mechanism for adjusting the upper and lower positions of the roller 21. The roller 21 is located below the load-bearing pulley device 100. The rope body 800 is wound around the load-bearing pulley device 100 and the roller 21 to form a closed loop.

[0114] The lifting and lowering adjustment device 200 of the present invention includes a mounting base 20 and a slide 24 movably arranged on the mounting base 20. The slide 24 is provided with a rotating shaft 23 and the roller 21 rotatably mounted on the rotating shaft 23. The rotating shaft 23 is arranged perpendicular to the slide 24. The roller 21 is provided with a guide groove 210 for guiding the rope body 800. The guide groove 210 is arranged along the circumference of the roller 21. The mounting base 20 is provided with the adjustment mechanism for driving the slide 24 to adjust the up and down position. The slide 24 is adjusted to move up and down by the adjustment mechanism, thereby driving the roller 21 to move up and down. When the roller 21 moves downward, the rope body 800 can be tensioned.

[0115] As a preferred embodiment of the present invention, the adjustment mechanism is an adjustment screw 26 having a screw end 262 and a nut end 261. The mounting base plate 20 is provided with an adjustment slot 255. The adjustment slot 255 has a top wall 252, a bottom wall 251, and a guide sidewall 253 disposed between the top wall 252 and the bottom wall 251 for restricting the nut end 261 from sliding out. The slide plate 24 has an adjustment portion 241 that extends into the adjustment slot 255 and is movable along the guide sidewall 253. The adjustment portion 241 is disposed perpendicular to the mounting base plate 20. The nut end 261 of the adjustment screw 26 is disposed corresponding to the top wall 252, and the screw end 262 of the adjustment screw 26 is disposed corresponding to the bottom wall 251. The top wall 252 is provided with an opening 254 for an adjustment tool to extend to the nut end 261 and tighten the adjustment screw 26. The adjustment portion 241 is provided with a screw hole 242 that cooperates with the adjustment screw 26, and the adjustment screw 26 is inserted into the screw hole 242. During adjustment, the adjusting screw 26 is rotated using an adjusting tool (e.g., a hexagonal wrench). When the screw end 262 of the adjusting screw 26 advances toward the bottom wall 251 and abuts against the bottom wall 251, the adjusting screw 26 continues to be rotated, but the adjusting screw 26 rotates on the bottom wall 251 and cannot be further advanced. At this time, as the adjusting screw 26 rotates, the adjusting portion 241 moves upward, thereby driving the slide 24 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 toward the top wall 252, the adjusting screw 26 abuts against the top wall 252 and rotates. At this time, the adjusting portion 241 moves toward the bottom wall 251, thereby driving the slide 24 downward. For better guidance, a vertical guide groove 240 is provided on the slide 24, and a guide post 206 is provided on the mounting base 20 to slide in the vertical guide groove 240.

[0116] As a preferred embodiment of the present invention, the adjustment portion 241, the bottom wall 251 and the top wall 252 are arranged in parallel, there are two guide side walls 253, and the two guide side walls 253 are arranged perpendicular to the bottom wall 251. The present invention also includes a cover plate 257, and the bottom wall 251, the top wall 252, the two guide side walls 253 and the cover plate 257 form an open groove body, and the inner cavity of the groove body is the adjustment groove 255 of this application.

[0117] 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 to prevent the adjusting portion 241 from loosening on its own.

[0118] As a preferred embodiment of the present invention, the mounting substrate 20 has a first surface 201 and a second surface 202 parallel to each other, the first surface 201 and the second surface 202 are connected by a first through groove 205, the rotating shaft 23 is passed through 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 slide 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.

[0119] As a preferred embodiment of the present invention, the first surface 201 is provided with a first slide groove 203 for guiding the movement of the roller 21, and the second surface 202 is provided with a second slide groove 204 for guiding the movement of the slide plate 24. The extension directions of the first slide groove 203, the second slide groove 204 and the adjustment groove 255 are the same.

[0120] As a preferred embodiment of the present invention, the slide plate 24 is further provided with a first baffle 243 and a second baffle 244, and also includes a first strip groove 208 and a second strip groove 209. The first strip groove 208 and the second strip groove 209 are both vertically disposed within the first slide groove 203. The first strip groove 208 and the second strip groove 209 both extend from the first surface 201 to the second surface 202. The first baffle 243 and the second baffle 244 are respectively disposed within the first strip groove 208 and the second strip groove 209. A limiting passage for the rope 800 to pass through is formed between the first baffle 243 and the guide groove 210, and a limiting passage for the rope 800 to pass through is formed between the second baffle 244 and the guide groove 210. The gap between the first baffle 243 and the end of the roller 21 is smaller than the diameter of the rope 800, ensuring that the rope 800 does not slip out of the 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 does not slip out of the gap.

[0121] As a preferred embodiment of the present invention, a guide bearing 22 is provided in the roller 21. The guide bearing 22 includes an inner ring and an outer ring that cooperate with each other. The roller 21 is mounted on the outer ring 222 of the guide bearing, and the inner ring 221 of the guide bearing is mounted on the rotating shaft 23.

[0122] As a preferred embodiment of the present invention, the two ends of the rotating shaft 23 are respectively provided with a first limit block 231 and a second limit block 232. The first limit block 231 is arranged corresponding to the slide plate 24. The first limit block 231 is formed by riveting the end of the rotating shaft 23. The second limit block 232 is arranged corresponding to the guide bearing 22. The second limit block 232 is an annular protrusion formed at the end of the rotating shaft 23.

[0123] As a preferred embodiment of the present invention, the mounting substrate 20 is provided with a plurality of locking holes 207 , which extend from the first surface 201 to the second surface 202 . The lifting and adjusting device of the present invention can be mounted on a corresponding carrier by means of the locking holes 207 .

[0124] The present invention also proposes an inner fan limit lifting pulley device 400, which is connected to the rope body 800 and includes a locking portion 41 and a guide portion 42 provided on the locking portion 41. In an embodiment, the locking portion 41 and the guide portion 42 are integrally formed, the locking portion 41 is block-shaped, and the locking portion 41 is mounted on the inner fan 704. The guide portion 42 is provided with a rope threading groove 423 for the rope body to pass through. The rope threading groove 423 extends in the vertical direction. The guide portion 42 is also provided with a positioning mechanism for fixing the rope body in the guide portion 42. The guide portion 42 is provided with a guide wheel 44, which is rotatably provided on the guide portion 42. The guide wheel 44 abuts against the mounting frame 702.

[0125] As a preferred embodiment of the present invention, a card slot 424 is provided on the guide portion 42, and the card slot 424 is opened from one end face 422 of the guide portion 42 to the other end face, specifically, is opened in the horizontal direction. The guide wheel 44 is set on the card block, and the card block is detachably clamped in the card slot 424.

[0126] As a preferred embodiment of the present invention, the clamping block includes a clamping portion 431, a connecting portion 432 and an elastic portion 433. The clamping portion 431, the connecting portion 432 and the elastic portion 433 are an integrally formed nylon block. The clamping portion 431 is arranged in the clamping slot 424, the connecting portion 432 is arranged along the outer wall of the guide portion 42, one end of the elastic portion 433 is connected to the connecting portion 432, and the elastic portion 433 and the connecting portion 432 are arranged at an angle, which is an acute angle. The guide wheel 44 is installed at the other end of the elastic portion 433, and the connecting portion 432 is connected to the elastic portion 433. The guide wheel 44 extends out from the end face of the guide portion 42 to ensure that the guide portion 42 does not contact the movable frame during sliding. The elastic part 433 can produce a certain deformation when it is under pressure, so that the guide wheel 44 can be pressed against the installation frame 702 with a certain pressure, and the door or window sash is not easy to swing left and right. The clamping block is movably clamped through the clamping slot 424. After the guide wheel 44 is worn or the elastic part fails to be elastic, the clamping block can be directly removed and replaced without completely disassembling the device of the present invention, which is convenient for maintenance and can reduce costs.

[0127] As a preferred embodiment of the present invention, a first hinge lug 434 and a second hinge lug 435 are provided on the elastic portion 433, and the guide wheel 44 is installed between the first hinge lug 434 and the second hinge lug 435 through a pin shaft 436, and the pin shaft 436 is arranged in the horizontal direction.

[0128] As a preferred embodiment of the present invention, the cross-section of the slot 424 along the circumferential direction is in an inverted "T" shape, and the cross-section of the block along the circumferential direction is in an inverted "T" shape. This structure can limit the displacement of the block in the up and down directions relative to the slot 424, and the block is pushed into the slot 424 from the horizontal direction.

[0129] As a preferred embodiment of the present invention, a receiving groove 421 is provided in the guide portion 42, and the positioning mechanism includes a clamp 45 for fixing the rope body, a pressing piece 46 for pressing the clamp 45 in the receiving groove 421, and a locking screw (not shown in the figure) for locking the pressing piece 46 on the locking portion 41, and the rope threading groove 423 extends from the receiving groove 421 to the outer wall of the guide portion 42.

[0130] As a preferred embodiment of the present invention, the rope threading groove 423 and the clamping groove 424 are staggered, and the clamping head 45 includes a metal base block, which has a first axial hole 451 and a second axial hole 452 for threading the rope body 800. The first axial hole 451 and the second axial hole 452 are arranged in parallel, and the first axial hole 451 and the second axial hole 452 both pass through one axial end of the metal base block to the other end. During installation, the rope body 800 passes through the first axial hole 451, is bent, and passes through the second axial hole 452, and then the metal base block is clamped so that the rope body 800 is clamped in the first axial hole 451 and the second axial hole 452. The pressing plate 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 arranged perpendicular to the transverse plate 463. A fixing column 425 is provided in the receiving groove 421, and a nail hole 464 is opened on the transverse plate 463. The locking screw passes through the nail 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 are respectively pressed against the two clamps 45, thereby positioning the rope body 800 on the inner fan limit lifting pulley device 400.

[0131] As a preferred embodiment of the present invention, there are two card slots 424 , which are respectively arranged at both ends of the guide portion 42 along the length direction, and each card slot 424 is equipped with one guide wheel 44 .

[0132] As a preferred embodiment of the present invention, the locking portion 41 is provided with a plurality of locking grooves 411 for assisting in the installation of the locking portion 41 .

[0133] The present invention further provides a lifting pulley device 500 for limiting the position of the outer sash of a casement window. The lifting pulley device 500 is connected to a rope body 800 and includes a mounting block and a guide wheel body 53 rotatably disposed on the mounting block. The mounting block is mounted on the outer sash 703. The mounting block is provided with an embedding groove 51 extending horizontally. The guide wheel body 53 is rotatably disposed on the embedding block, and the embedding block is clamped in the embedding groove 51. The mounting block is fixed to a side of the outer sash 703 close to the mounting frame 702, and the guide wheel body 53 abuts against the mounting frame 702.

[0134] As a preferred embodiment of the present invention, the mounting block has a mounting surface 502, a guide surface 501, and a connecting side wall 503 formed between the mounting surface 502 and the guide surface 501. The mounting groove 51 extends from the mounting surface 502 to the guide surface 501. The mounting groove 51 has an entrance 511 for inserting the insert and a limit platform (located in the mounting block, not shown) for limiting the slide of the insert to the mounting surface 502. The mounting groove 51 extends to the connecting side wall 503, and an exit 512 for the insert to extend out is formed on the connecting side wall 503.

[0135] 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.

[0136] As a preferred embodiment of the present invention, the insert block includes an embedded portion 521, a guide support portion 522 and a cantilever portion 523. The embedded portion 521, the guide support portion 522 and the cantilever portion 523 are integrally formed. The guide wheel body 53 is installed at the end of the cantilever portion 523. The cantilever portion 523 and the guide support portion 522 are arranged at an angle. Specifically, the angle is an acute angle. The guide support portion 522 is arranged along the connecting side wall 503. The guide wheel body 53 extends out of the guide surface 501 to guide the outer fan 703 to slide in the mounting frame 702. The mounting block does not contact the mounting frame 702.

[0137] As a preferred embodiment of the present invention, the end of the cantilever portion 523 is provided with a first arm 524 and a second arm 525 , the first arm 524 and the second arm 525 are provided with a guide pin 526 , and the guide wheel body 53 is installed on the guide pin 526 .

[0138] As a preferred embodiment of the present invention, the mounting block is further provided with a rope passage groove 504 for the rope body 800 to pass through, and the rope passage groove 504 passes through from one side of the connecting side wall 503 to the other side.

[0139] As a preferred embodiment of the present invention, a locking block is embedded in the rope groove 504, and 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 groove 504 by a locking screw 544.

[0140] As a preferred embodiment of the present invention, the locking block is provided with a first through-hole 543, and the mounting block is provided with a second through-hole 505 corresponding to the first through-hole 543. The first through-hole 543 extends through the mounting surface 502. During use, the first locking block 541 is first inserted, the rope 800 is passed through the surface of the first locking block 541, and the second locking block 542 is inserted. The rope 800 is positioned between the first and second locking blocks 541, 542. The locking screw 544 is passed through the first and second through-holes 543, 505, and the mounting block, the first and second locking blocks 541, 542 are locked to the outer fan 703.

[0141] As a preferred embodiment of the present invention, the upper end of the inner fan 704 and the upper end of the outer fan 703 are both provided with an anti-sway pulley device 300. Specifically, the anti-sway pulley device 300 can be set on the left and right sides of the inner fan 704 and the left and right sides of the outer fan 703.

[0142] The anti-sway pulley device 300 of the present invention includes a mounting base 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 both rotatably mounted on the mounting base 30. The axle of the first guide wheel 309 is parallel to the axle of the second guide wheel 310. During 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. During actual installation, the axle of the third guide wheel 311 extends in the front-back direction.

[0143] As a preferred embodiment of the present invention, a first extension portion 301 perpendicular to the mounting substrate 30 is formed on the mounting substrate 30, and a first mounting arm 304 and a second mounting arm 305 are respectively formed on both sides of the first extension portion 301. The first mounting arm 304 and the second mounting arm 305 are arranged at an angle, and the first guide wheel 309 is installed on the first mounting arm 304, and the second guide wheel 310 is installed on the second mounting arm 305.

[0144] 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 oscillate and is provided with two first mounting lugs 306. 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 oscillate and is provided with two second mounting lugs 307. The second guide wheel 310 is rotatably mounted on the two second mounting lugs 307.

[0145] As a preferred embodiment of the present invention, a second extension portion 302 is further provided on the mounting substrate 30, and the second extension portion 302 is vertically connected to the mounting substrate 30. A third extension portion 303 is provided at the end of the second extension portion 302, and the third extension portion 303 is parallel to the mounting substrate 30. The third guide wheel 311 is installed on the third extension portion 303, and the third extension portion 303 can elastically swing relative to the second extension portion 302.

[0146] 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 .

[0147] In an embodiment, the mounting base 30 , the first extension 301 , the second extension 302 , the third extension 303 , the first mounting arm 304 and the second mounting arm 305 are integrally formed of a metal sheet (eg, stainless steel) having certain strength and elasticity.

[0148] As a preferred embodiment of the present invention, the first extension portion 301 and the second extension portion 302 are arranged at both ends of the mounting substrate 30, the first guide wheel 309 and the second guide wheel 310 extend out from both sides of the mounting substrate 30 respectively, and the third guide wheel 311 is located on the left or right side of the first guide wheel 309.

[0149] As a preferred embodiment of the present invention, the mounting base 30 is provided with a plurality of through holes 312 for assisting in locking the mounting base 30 , and the inner fan 704 or the outer fan 703 of the present invention is locked through the through holes 312 .

[0150] 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, and a positioning hole 708 is provided on the positioning switch piece 707. A safety positioner 600 is provided on the mounting frame 702 to cooperate with the positioning switch piece 707. In the present invention, the number of positioning switch pieces 707 can be selected as needed, and two or three pieces can be used to position the inner fan 704 or the outer fan 703 at a specific position, thereby providing ventilation and preventing falling.

[0151] The safety positioner 600 of the present invention includes a mounting base 60 and a positioning pin 62 provided on the mounting base 60. The mounting base 60 is provided with a positioning column 61, which is arranged perpendicular to the mounting base 60. The positioning column 61 is provided with a guide hole 611, which is arranged along the axial direction of the positioning column 61. The positioning pin 62 is arranged in the guide hole 611 so as to be rotatable and axially movable. The positioning switch piece 707 cooperates with the positioning pin 62 to realize the positioning of the inner fan 704 or the outer fan 703. A support platform 615 is provided in the guide hole 611. 2 is provided with a locking portion, and an elastic component is sleeved on the positioning pin 62. One end of the elastic component is provided corresponding to the support platform 615, and the other end is provided corresponding to the locking portion. A first positioning portion 612 and a second positioning portion 613 are provided on the end of the positioning column 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. The positioning cap 621 is provided with a positioning bar 622 that can switch positions between the first positioning portion 612 and the second positioning portion 613.

[0152] As a preferred embodiment of the present invention, the first positioning portion 612 and the second positioning portion 613 are staggered in the circumferential direction of the positioning column 61, and the first positioning portion 612 and the second positioning portion 613 are arranged at different axial positions of the positioning column 61. The first positioning portion 612 and the second positioning portion 613 are transitionally connected by a guide slope 614. When in use, when the positioning bar 622 moves axially and rotates circumferentially, the positioning bar 622 is clamped into the first positioning portion 612 and the second positioning portion 613, thereby realizing the axial position adjustment of the positioning pin 62.

[0153] 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, extending axially along the positioning post, and the second positioning portion 613 is a retaining groove provided at the end of the positioning post 61. During use, the positioning cap 621 is rotated, and the positioning bar 622 slides within the guide slope 614, thereby achieving axial movement of the positioning pin 62, causing the positioning bar 622 to slide from the first positioning portion 612 into the second positioning portion 613, or from the second positioning portion 613 into the first positioning portion 612.

[0154] As a preferred embodiment of the present invention, there are two first positioning portions 612 and two second positioning portions 613 , the two first positioning portions 612 are arranged at the radial ends of the positioning column 61 , and the two second positioning portions 613 are arranged at the radial ends of the positioning column 61 .

[0155] As a preferred embodiment of the present invention, there are two positioning bars 622 , which are arranged on the inner wall of the positioning cap 621 , and are arranged at both ends of the positioning cap 621 in a radial direction.

[0156] 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 snap ring 624 engaged in the annular groove 623 .

[0157] 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.

[0158] As a preferred embodiment of the present invention, a clamping seat 64 is provided in the mounting seat 60, a first screw hole column 641 is provided in the clamping seat 64, a first screw 642 is provided in the first screw hole column 641, and 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.

[0159] 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 base 60 . The cover plate 645 is locked in the second screw hole column 643 by a second screw 644 .

[0160] As a preferred embodiment of the present invention, the door further includes a fixed frame 701, and the installation frame 702 is mounted on the fixed frame 701 via a hinge so as to be pushed and pulled inward and outward and openable. The installation frame 702 is provided with a handle 705 to facilitate opening of the installation frame 702. To limit the opening degree of the inner and outer sashes, corresponding stop blocks 706 are provided on the fixed frame 701. When the inner or outer sashes move to the position of the stop blocks 706, they are restricted. The present invention can also provide a corresponding safety net on the installation frame 702 as needed.

[0161] 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. A lifting and adjusting device, characterized in that: The invention comprises a mounting base and a slide plate movably arranged on the mounting base, the slide plate is provided with a rotating shaft and a roller rotatably mounted on the rotating shaft, the roller is provided with a guide groove for guiding the rope body, and the mounting base is provided with an adjustment mechanism for driving the slide plate to adjust the upper and lower positions. The adjusting mechanism is an adjusting screw, which has a screw end and a nut end. The mounting base is provided with an adjusting slot, which has a top wall and a bottom wall for limiting the sliding out of the nut end, and a guide side wall provided between the top wall and the bottom wall. The slide has an adjusting portion that extends into the adjusting slot and can move along the guide side wall. The nut end of the adjusting screw is provided corresponding to the top wall, and the screw end of the adjusting screw is provided corresponding to the bottom wall. An opening is provided on the top wall for an adjusting tool to extend to the nut end and screw the adjusting screw. A screw hole that cooperates with the adjusting screw is provided on the adjusting portion, and the adjusting screw is passed through the screw hole. The adjusting portion, the bottom wall and the top wall are arranged in parallel, there are two guide side walls, and both guide side walls are arranged perpendicular to the bottom wall. A spring is provided between the adjusting portion and the bottom wall. The mounting substrate has a first surface and a second surface parallel to each other, the first surface and the second surface are connected through a first through groove, the roller is located on the first surface, the slide is located on the second surface, and the adjustment portion extends from the second surface into the adjustment groove. The first surface is provided with a first sliding groove for guiding the movement of the roller, and the second surface is provided with a second sliding groove for guiding the movement of the slide. The first sliding groove, the second sliding groove and the adjustment groove extend in the same direction.

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