Inner fan limit lifting pulley device and doors and windows

Abstract

The present invention relates to an inner fan limit lifting pulley device, which includes a locking part and a guiding part arranged on the locking part. A rope threading groove for a rope body to pass through is formed on the guiding part. A positioning mechanism for fixing the rope body in the guiding part is further provided on the guiding part. A guiding wheel is arranged on the guiding part, and the guiding wheel is rotatably arranged on the guiding part. By using the device of the present invention and installing it on the side of a window sash or a door sash, the guiding wheel can guide the up and down sliding of the window sash or the door sash. A rope threading groove is formed on the guiding part. After the rope body passes through the rope threading groove and is positioned by the positioning mechanism, the fixation of the window sash or the door sash and the rope body is realized. Through the device of the present invention, the guiding and hanging functions of the window sash or the door sash can be realized, which can facilitate the installation of the window sash or the door sash. The present invention also provides doors and windows using the inner fan limit lifting pulley device. The present invention also provides doors and windows using the inner fan limit lifting pulley device.

Description

Technical Field

[0001] The present invention relates to an inner fan limiting lifting pulley device and a door and window. Background Art

[0002] Traditional doors and windows include casement type and sliding type, each having its 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 fan and an inner fan are arranged in the movable frame. Both the inner fan and the outer fan are installed in the movable frame so as to be slidable up and down through guide wheels. A fixed pulley is arranged in the movable frame, a steel wire rope is wound around the fixed pulley, and the inner fan and the outer fan are connected to both ends of the steel wire rope. The linkage of the inner fan and the outer fan is also realized through the fixed pulley.

[0003] In traditional such casement lifting doors and windows, although the guide wheels can limit the left - right swaying of the inner fan and the outer fan to a certain extent, the effect is not ideal. The installation of the steel wire rope on the inner fan and the outer fan is also rather troublesome and unsafe.

[0004] In view of this, the inventor of the present invention has conducted in - depth research on the above problems, and thus this case has been generated. Summary of the Invention

[0005] The purpose of the present invention is to provide an inner fan limiting lifting pulley device that can play a guiding role and facilitate the installation of doors and windows. Another purpose of the present invention is to propose a door and window adopting this device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0007] The inner fan limiting lifting pulley device includes a locking part and a guiding part arranged on the locking part. A rope - passing groove for a rope body to pass through is formed on the guiding part. A positioning mechanism for fixing the rope body in the guiding part is also arranged on the guiding part. A guide wheel is arranged on the guiding part, and the guide wheel is rotatably arranged on the guiding part.

[0008] As a preferred embodiment of the present invention, a clamping groove is arranged on the guiding part, the guide wheel is arranged on a clamping block, and the clamping block is detachably clamped in the clamping groove.

[0009] As a preferred embodiment of the present invention, the clamping block includes a clamping part, a connecting part, and an elastic part. The clamping part is arranged in the clamping groove, the connecting part is arranged along the outer wall of the guiding part, one end of the elastic part is connected to the connecting part, the elastic part and the connecting part are arranged at an included angle, the guide wheel is installed at the other end of the elastic part, the connecting part is connected to the elastic part, and the end face of the guide wheel extends out of the guiding part.

[0010] As a preferred embodiment of the present invention, a first hinge lug and a second hinge lug are provided on the elastic portion, and the guide wheel is installed between the first hinge lug and the second hinge lug via a pin.

[0011] As a preferred embodiment of the present invention, the cross section of the clamping groove along the circumferential direction is in an inverted "T" shape, and the cross section of the clamping block along the circumferential direction is in an inverted "T" shape.

[0012] As a preferred embodiment of the present invention, a receiving groove is provided in the guide portion, and the positioning mechanism includes a clamp for fixing the rope body, a pressing plate for pressing the clamp in the receiving groove, and a locking screw for locking the pressing plate on the locking portion, and the rope threading groove extends from the receiving groove to the outer wall of the guide portion.

[0013] As a preferred embodiment of the present invention, the rope threading groove and the clamping groove are staggered, the clamping head includes a metal base block, the metal base block has a first axial hole and a second axial hole for threading the rope body, the first axial hole and the second axial hole are arranged in parallel, and the first axial hole and the second axial hole both pass through one axial end of the metal base block to the other end, the pressing plate includes a horizontal plate, a first longitudinal plate and a second longitudinal plate, the first longitudinal plate and the second longitudinal plate are respectively arranged at both ends of the horizontal plate and are both arranged perpendicular to the horizontal plate, a fixing column is provided in the receiving groove, and the horizontal plate is locked on the fixing column.

[0014] As a preferred embodiment of the present invention, there are two card slots, which are respectively arranged at two ends of the guide portion along the length direction, and each card slot is equipped with one guide wheel.

[0015] As a preferred embodiment of the present invention, the locking portion is provided with a plurality of locking grooves for assisting the installation of the locking portion.

[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 arranged 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, the inner sash is connected to an inner sash limiting lifting pulley device, the inner sash limiting lifting pulley device comprises a locking part and a guide part arranged on the locking part, a rope threading groove for the rope body to be passed through is opened on the guide part, a positioning mechanism for fixing the rope body in the guide part is also arranged on the guide part, a guide wheel is arranged on the guide part, the guide wheel is rotatably arranged on the guide part, the locking part is locked on the inner sash, and the guide wheel abuts against the installation frame.

[0017] The device of the present invention is installed on the side of a window sash or a door leaf. The guide wheels can guide the up-and-down sliding of the window sash or the door leaf. A rope threading groove is provided on the guiding part. After the rope body is threaded through the rope threading groove and positioned by the positioning mechanism, the fixation of the window sash or the door leaf and the rope body is achieved. The device of the present invention can realize the guiding and hanging functions of the window sash or the door leaf, and facilitate the installation of the window sash or the door leaf. The present invention also proposes doors and windows adopting the inner sash limit lifting pulley device. Further, in the present invention, the clamping block includes a clamping part, a connecting part and an elastic part. When the elastic part is pressed, it can generate a certain deformation, so that the guide wheel can abut against the installation frame of the doors and windows with a certain pressure, and the door leaf or the window sash is not easy to shake left and right. The clamping block is movably clamped through a clamping groove. After the guide wheel is worn or the elasticity of the elastic part fails, 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 at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0023] Figure 6 is a sectional view taken along the line B-B in the present invention.

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

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

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

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

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

[0029] Figure 12 is Figure 10 a sectional view taken along the C-C direction in

[0030] Figure 13 a schematic structural view of the anti-sway pulley device in the present invention.

[0031] Figure 14 a schematic structural view of the inner fan limit lifting pulley device in the present invention.

[0032] Figure 15 a schematic structural view of the inner fan limit lifting pulley device from another angle in the present invention.

[0033] Figure 16 a schematic structural view of the outer fan limit lifting pulley device of the casement lifting window in the present invention.

[0034] Figure 17 a schematic structural view of the outer fan limit lifting pulley device of the casement lifting window in the present invention.

[0035] Figure 18 a schematic structural view of the safety locator in the present invention.

[0036] Figure 19 a schematic structural view of the mounting seat cooperating with the positioning post in the present invention.

[0037] In the figure:

[0038] Load-bearing pulley device 100

[0039] Mounting plate 10, guiding surface 101

[0040] Mounting surface 102, sunk groove 103

[0041] Stopper 104, channel 105

[0042] Pulley 11, guiding groove 12

[0043] Axle 13, first limiting part 131

[0044] Second limiting part 132, 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 sliding groove 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 Inner ring 221 of the guide bearing

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

[0055] First limit block 231 Second limit block 232

[0056] Slide plate 24 Vertical guide groove 240

[0057] Adjusting part 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] Adjusting groove 255 Spring 256

[0062] Cover plate 257 Adjusting screw 26

[0063] Nut end 261 Screw rod end 262

[0064] Anti-sway pulley device 300

[0065] Mounting substrate 30 First extension part 301

[0066] Second extension part 302 Third extension part 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 fan limit lifting pulley device 400

[0073] Locking part 41 Locking groove 411

[0074] Guiding part 42 Receiving groove 421

[0075] End face 422 Rope threading groove 423

[0076] Card slot 424, fixing post 425

[0077] Snap joint portion 431

[0078] Connecting portion 432, elastic portion 433

[0079] First hinge lug 434, second hinge lug 435

[0080] Pin shaft 436, guide wheel 44

[0081] Locking head 45, first shaft hole 451

[0082] Second shaft hole 452, pressure plate 46

[0083] First longitudinal plate 461, second longitudinal plate 462

[0084] Cross plate 463, through pin hole 464

[0085] Limit lifting pulley device 500 for the sash of a horizontally-opening and lifting window

[0086] Guide surface 501

[0087] Mounting surface 502, connecting side wall 503

[0088] Rope passing groove 504, second perforation 505

[0089] Inlay groove 51, entrance 511

[0090] Exit 512, embedding portion 521

[0091] Guide support portion 522, cantilever portion 523

[0092] First support arm 524, second support arm 525

[0093] Guide pin 526, guide wheel body 53

[0094] First lock block 541, second lock block 542

[0095] First perforation 543, locking screw 544

[0096] Safety locator 600

[0097] Mounting base 60, positioning post 61

[0098] Guide hole 611, first positioning portion 612

[0099] Second positioning portion 613, guide inclined surface 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, socket 64

[0104] First screw hole column 641, first screw 642

[0105] Second screw hole column 643, second screw 644

[0106] Cover plate 645

[0107] Fixed frame 701, mounting frame 702

[0108] Outer fan 703, inner fan 704

[0109] Handle 705, stop block 706

[0110] Positioning switch piece 707, positioning hole 708

[0111] Rope body 800 Specific embodiments

[0112] In order to further explain the technical solution of the present invention, the following will be elaborated in detail in combination with embodiments.

[0113] 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, and the inner fan 704 and the outer fan 703 are located on both sides of the rope body 800. It also includes a lifting adjustment device provided in the mounting frame 702. The lifting adjustment device is provided with a roller 21 and an adjustment mechanism for adjusting the up and down position of the roller 21. The roller 21 is located below the load-bearing pulley device 100, and 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 adjustment 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 roller 21 is rotatably installed on the rotating shaft 23. The rotating shaft 23 is perpendicular to the sliding plate 24. A guiding groove 210 for guiding the rope body 800 is provided on the roller 21. The guiding groove 210 is arranged along the circumferential direction of the roller 21. The adjustment mechanism for driving the sliding plate 24 to adjust the up and down position is provided on the mounting substrate 20. By adjusting the adjustment mechanism, the sliding plate 24 moves up and down, 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 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 sliding out, a bottom wall 251, and guiding side walls 253 provided between the top wall 252 and the bottom wall 251. The sliding 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 arranged with respect to the mounting substrate 20. The nut end 261 of the adjusting screw 26 is arranged corresponding to the top wall 252, and the screw end 262 of the adjusting screw 26 is arranged 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 into the threaded hole 242. During adjustment, the adjusting screw 26 is rotated by an adjusting tool (such as a hexagon 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 sliding 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 sliding plate 24 to move downward. For better guiding, a vertical guiding groove 240 is provided on the sliding plate 24, and a guide post 206 that can slide in the vertical guiding groove 240 is provided on the mounting substrate 20.

[0116] 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 arranged 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.

[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, which has the effect of preventing the adjusting portion 241 from loosening by itself.

[0118] 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 by 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.

[0119] 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.

[0120] 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. There are also 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.

[0121] 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.

[0122] 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.

[0123] 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. By means of the locking holes 207, the lifting and adjusting device of the present invention can be mounted on a corresponding carrier.

[0124] The present invention also provides an inner sash limit lifting pulley device 400. The inner sash limit lifting pulley device is connected to a rope body 800. It includes a locking portion 41 and a guiding portion 42 provided on the locking portion 41. In an embodiment, the locking portion 41 and the guiding portion 42 are integrally formed. The locking portion 41 is in a block shape. The locking portion 41 is mounted on the inner sash 704. A rope passing groove 423 for the rope body to pass through is formed on the guiding portion 42. The rope passing groove 423 extends in the vertical direction. A positioning mechanism for fixing the rope body in the guiding portion 42 is further provided on the guiding portion 42. A guiding wheel 44 is provided on the guiding portion 42. The guiding wheel 44 is rotatably arranged on the guiding portion 42. The guiding wheel 44 abuts against the mounting frame 702.

[0125] As a preferred embodiment of the present invention, a clamping groove 424 is provided on the guiding portion 42. The clamping groove 424 is opened from one end face 422 of the guiding portion 42 to the other end face, specifically, it is opened along the horizontal direction. The guiding wheel 44 is arranged on a clamping block. The clamping block is detachably clamped in the clamping groove 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 integrally formed nylon blocks. The clamping portion 431 is arranged in the clamping groove 424. The connecting portion 432 is arranged along the outer wall of the guiding portion 42. One end of the elastic portion 433 is connected to the connecting portion 432. The elastic portion 433 and the connecting portion 432 are arranged at an angle. This angle is an acute angle. The guiding wheel 44 is mounted on the other end of the elastic portion 433. The connecting portion 432 is connected to the elastic portion 433. The guiding wheel 44 extends out of the end face of the guiding portion 42, ensuring that during sliding, the guiding portion 42 does not contact the movable frame. When the elastic portion 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 likely to sway left and right. The clamping block is movably clamped through the clamping groove 424. After the guiding wheel 44 is worn or the elasticity of the elastic portion 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.

[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. 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.

[0128] 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 vertical direction, and the card block is pushed into the card slot 424 from the horizontal direction.

[0129] As a preferred embodiment of the present invention, a receiving groove 421 is formed 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 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. The rope passing groove 423 extends from the receiving groove 421 to the outer wall of the guiding portion 42.

[0130] 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, bends, and then passes through the second shaft hole 452. Then, 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 arranged in the receiving groove 421, and a nail-passing hole 464 is formed in the transverse plate 463. The locking screw passes through the nail-passing 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.

[0131] 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.

[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 also provides a limit lifting pulley device 500 for the outer sash of a casement window. The limit lifting pulley device 500 for the outer sash of a casement 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 the 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.

[0134] As a preferred embodiment of the present invention, the mounting block has a mounting surface 502, a guiding surface 501, and a connecting 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 embedding block from sliding to the mounting surface 502. The embedding groove 51 extends to the connecting side wall 503 and forms an exit 512 for the embedding block to protrude 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 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 installed 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 connecting 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.

[0137] 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 installed on the guide pins 526.

[0138] As a preferred embodiment of the present invention, the mounting block is also 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 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 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. The locking block is locked in the rope passing groove 504 by a locking screw 544.

[0140] 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. During 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, with the rope body 800 located between the first locking block 541 and the second locking block 542, and pass the locking screw 544 through the first through hole 543 and the second through hole 505 to lock the mounting block, the first locking block 541 and the second locking block 542 on the outer fan 703.

[0141] 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.

[0142] 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. During actual installation, the axle of the first guide wheel 309 and the axle of the second guide wheel 310 are parallel 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. First mounting arms 304 and second mounting arms 305 are respectively formed on both sides of the first extension portion 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.

[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 freely movable elastic end 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 freely movable elastic end 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. 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.

[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 between the two third mounting lugs 308.

[0147] 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.

[0148] 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.

[0149] As a preferred embodiment of the present invention, a plurality of through holes 312 for assisting in locking the mounting substrate 30 are provided on 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.

[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. A positioning hole 708 is provided on the positioning switch piece 707. A safety positioner 600 cooperating 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 according to needs, and two or three pieces can be selected to position the inner fan 704 or the outer fan 703 at a specific position, so as to play a role in ventilation and anti-falling.

[0151] 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 circumferentially 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 supporting 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 supporting 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 bar 622 capable of switching positions between the first positioning portion 612 and the second positioning portion 613 is provided on the positioning cap 621.

[0152] As a preferred embodiment of the present invention, the first positioning portion 612 and the second positioning portion 613 are arranged in a circumferentially offset manner on 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. During use, when the positioning bar 622 moves axially and rotates circumferentially, the positioning bar 622 is thus latched 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. 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. During use, the positioning cap 621 is rotated, and the positioning bar 622 slides in the guiding inclined surface 614, thereby realizing the axial movement of the positioning pin 62, so that the positioning bar 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.

[0154] 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.

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

[0156] As a preferred embodiment of the present invention, an annular groove 623 is provided on the positioning pin 62, and the latching portion is a snap ring 624 clamped in the annular groove 623.

[0157] As a preferred embodiment of the present invention, the elastic member is a spring 63. One end of the spring 63 abuts against the snap 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 snap 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 card seat 64 is provided in the mounting seat 60. A first screw hole column 641 is provided in the card seat 64, and 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 positioner 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 card seat 64, and a cover plate 645 is provided on the mounting seat 60. The cover plate 645 is locked in the second screw hole column 643 through a second screw 644.

[0160] As a preferred embodiment of the present invention, it further includes a fixed frame 701. The installation frame 702 is installed on the fixed frame 701 through a hinge so as to be push-pullable inside and outside. A handle 705 is provided on the installation frame 702 to facilitate the opening of the installation frame 702. In order to limit the opening degree of the inner fan and the outer fan, corresponding stop blocks 706 are provided on the fixed frame 701, and the inner fan or the outer fan is limited when it moves to the position of the stop block 706. The present invention can also be provided with a corresponding safety net on the installation frame 702 according to needs.

[0161] The product form of the present invention is not limited to the embodiments of this case. Any person who makes appropriate changes or modifications to it with a similar idea should be regarded as not departing from the patent scope of the present invention.

Claims

1. Inner fan limit lifting pulley device, characterized in that: The invention comprises a locking part and a guide part arranged on the locking part, wherein the guide part is provided with a rope threading groove for the rope body to pass through, and the guide part is also provided with a positioning mechanism for fixing the rope body in the guide part, and the guide part is provided with a guide wheel, which is rotatably arranged on the guide part. The guide part is provided with a card slot, the guide wheel is arranged on a card block, and the card block is detachably arranged in the card slot. The card block includes a card connection part, a connecting part and an elastic part. The card connection part is arranged in the card slot. The connecting part is arranged along the outer wall of the guide part. One end of the elastic part is connected to the connecting part. The elastic part and the connecting part are arranged at an angle. The guide wheel is installed at the other end of the elastic part. The connecting part is connected to the elastic part. The guide wheel extends out of the end face of the guide part. The elastic part is provided with a first hinge lug and a second hinge lug, and the guide wheel is installed between the first hinge lug and the second hinge lug through a pin shaft. The cross section of the card slot along the circumferential direction is in an inverted "T" shape, and the cross section of the card block along the circumferential direction is in an inverted "T" shape. The guide portion is provided with a receiving groove, the positioning mechanism comprises a clamp for fixing the rope body, a pressing sheet for pressing the clamp in the receiving groove, and a locking screw for locking the pressing sheet on the locking portion, and the rope threading groove extends from the receiving groove to the outer wall of the guide portion. The rope threading groove and the clamping groove are staggered, and the clamping head includes a metal base block, and the metal base block has a first axial hole and a second axial hole for passing the rope body, the first axial hole and the second axial hole are arranged in parallel, and the first axial hole and the second axial hole both pass through from one end of the metal base block to the other end axially, and the pressing plate includes a transverse plate, a first longitudinal plate and a second longitudinal plate, the first longitudinal plate and the second longitudinal plate are respectively arranged at both ends of the transverse plate and are both arranged perpendicular to the transverse plate, a fixing column is arranged in the receiving groove, and the transverse plate is locked on the fixing column, The locking portion is provided with a plurality of locking grooves for assisting the installation of the locking portion.

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