Fire safety elevator

Abstract

The application discloses a fireproof safety elevator and relates to the technical field of elevator safety; the fireproof safety elevator comprises an elevator shaft, a driving mechanism is fixedly installed at the top end of the elevator shaft, an elevator assembly is slidably arranged in the elevator shaft, an escape assembly is slidably arranged in the elevator assembly, anti-falling mechanisms are fixedly installed at eight corners of the escape assembly, two fixed mechanisms that are distributed in a staggered manner are fixedly installed between the escape assembly and the elevator assembly, and the escape assembly can be separated from the elevator assembly when the elevator assembly cannot be lifted due to fire damage or when the driving mechanism of the elevator assembly cannot work normally due to fire, so that the trapped personnel in the elevator can lift the escape assembly in the elevator shaft to help the trapped personnel in the escape assembly escape from the floor where the fire occurs, and the anti-falling mechanisms ensure that the escape assembly cannot fall greatly after being separated.

Description

Technical Field

[0001] This invention relates to the field of elevator safety technology, specifically to a fire-resistant and safe elevator. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building, with its car moving on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° to the vertical.

[0003] In order to ensure the convenience of people's use, some older residential communities have gradually begun to install external elevators to facilitate people's travel. With the use of elevators, their safety has also become a concern. If an elevator is damaged and cannot work normally in the event of a fire, it is necessary to install corresponding safety facilities to ensure that people can use the safety facilities to escape in time and prevent injuries. In response to the above problems, the inventor has proposed a fire-resistant safety elevator to solve the above problems. Summary of the Invention

[0004] To address the issue of ensuring timely escape for occupants in the event of a fire that damages the elevator and prevents injury, this invention aims to provide a fire-resistant and safe elevator.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a fire-resistant safety elevator, including an elevator shaft, a drive mechanism fixedly installed at the top of the elevator shaft, an elevator assembly slidably disposed inside the elevator shaft, an escape assembly slidably disposed inside the elevator assembly, and the escape assembly can be fixedly installed inside the elevator assembly, anti-fall mechanisms are fixedly installed at each of the eight corners of the escape assembly, and two staggered fixing mechanisms are fixedly installed between the escape assembly and the elevator assembly.

[0006] Preferably, the elevator shaft includes two fixed beams distributed vertically, and four rectangularly distributed support columns, four rectangularly distributed first limiting columns, and four rectangularly distributed second limiting columns are fixedly installed between the two fixed beams, with the four support columns, four first limiting columns, and four second limiting columns distributed sequentially from the outside to the inside.

[0007] Preferably, the driving mechanism includes a support bracket, which is fixedly mounted on the top of the upper fixed beam. Two sets of first support plates are fixedly mounted on the top of the support bracket. Two first rotating shafts are rotatably mounted on the two sets of first support plates via bearings. Two winding bobbins are fixedly mounted on the first rotating shafts, and the two winding bobbins are respectively located inside the two sets of first support plates. A first motor bracket is provided between the two sets of first support plates, and the first motor bracket is fixedly mounted at the center of the top of the upper fixed beam. A first drive shaft is rotatably mounted on the first motor bracket via bearings. Second bevel gears are fixedly mounted on both ends of the first drive shaft. First bevel gears are fixedly mounted on both first rotating shafts, and the two first bevel gears mesh with corresponding second bevel gears. A first gear is fixedly mounted on the first drive shaft. An elevator motor is fixedly mounted on the first motor bracket. A second gear is fixedly mounted on the output end of the elevator motor, and the second gear meshes with the first gear.

[0008] Preferably, two first limiting mechanisms are fixedly installed on both sides of the support bracket that are parallel to the first rotating shaft. The cable on the winding drum can pass through the inside of the first limiting mechanism on one side. The elevator assembly includes an elevator body. Two second limiting mechanisms are fixedly installed on both sides of the elevator body that are adjacent to the elevator door. The four second limiting mechanisms are slidably arranged on four rectangularly distributed first limiting posts. The cable on the winding drum can pass through the fixed beam located above and is fixedly connected to the top of the elevator body.

[0009] Preferably, the escape assembly includes an escape elevator that slides through the elevator body. The escape elevator is slidably mounted on four rectangularly distributed second limiting posts. Two connecting posts are fixedly installed on the side of the escape elevator closest to the elevator door of the elevator body. The connecting posts are slidably mounted on two of the four second limiting posts closest to the elevator door of the elevator body. A fixing plate is fixedly installed inside the escape elevator on the side of the elevator door away from the elevator body. A first deflection plate is hinged to both sides of the fixing plate near the side wall adjacent to the elevator door of the elevator body. A second deflection plate is provided on the side of the first deflection plate away from the fixing plate. A third deflection plate is provided on the side of the second deflection plate away from the first deflection plate. A central shaft is hinged to both sides of the second deflection plate near the first and third deflection plates, and the two central shafts are respectively hinged to the first and third deflection plates.

[0010] Preferably, the escape elevator has two symmetrically distributed third slide grooves and two symmetrically distributed fourth slide grooves at both the top and bottom. The elevator body has two symmetrically distributed first slide grooves and two symmetrically distributed second slide grooves at both the top and bottom. The first and third slide grooves on the same side can form a first slide rail, and the second and fourth slide grooves on the same side can form a second slide rail. Both ends of the central shaft are equipped with pulleys that rotate through bearings, and the pulleys at the four ends of the central shaft slide inside the corresponding upper and lower distributed first and second slide rails.

[0011] Preferably, the escape elevator has a rectangular hole at its bottom, a rotating cylinder is rotatably mounted inside the rectangular hole, a side gear ring is fixedly mounted on the top of the rotating cylinder, a fixed column is located at the center of the rectangular hole and is fixedly connected to the escape elevator, a first emergency motor is fixedly mounted on the fixed column, a third gear is fixedly mounted on the output end of the first emergency motor and meshes with the side gear ring, three fan-shaped threaded sleeves are rotatably mounted on the fixed column and the escape elevator via bearings, and the directions of the three threaded sleeves are consistent with the elevator door of the elevator body and the two side walls adjacent to the elevator door, respectively, a fourth gear is fixedly mounted on the outer ring of the threaded sleeve and meshes with the side gear ring, a threaded rod is threaded inside the threaded sleeve, a movable block is fixedly mounted on the end of the threaded rod away from the fixed column, and the movable block is slidably mounted at the bottom of the escape elevator and can be slidably inserted into the elevator body.

[0012] Preferably, the top of the escape elevator is fixedly equipped with two sets of second support plates and a second motor bracket. Each of the two sets of second support plates has a second rotating shaft rotatably mounted via bearings. Two fifth gears and one third bevel gear are fixedly mounted on the second rotating shaft. A rack is fixedly mounted on the second limiting post, and the four fifth gears mesh with the racks on the four second limiting posts respectively. A second drive shaft is rotatably mounted on the second motor bracket via bearings. Fourth bevel gears are fixedly mounted at both ends of the second drive shaft, and the two fourth bevel gears mesh with the two third bevel gears respectively. A sixth gear is fixedly mounted in the middle of the second drive shaft. A second emergency motor is fixedly mounted at the center of the top of the escape elevator, and a seventh gear is fixedly mounted at the output end of the second emergency motor, meshing with the sixth gear.

[0013] Preferably, the fall protection mechanism includes two rectangular plates, both of which are fixedly installed inside the escape elevator. A rotating column is rotatably mounted at the center of the two rectangular plates via a bearing. An eighth gear is fixedly mounted in the middle of the rotating column, and the eighth gear meshes with a rack on a second limiting column on one side. Turntables are fixedly mounted at both ends of the rotating column. Four rectangular blocks arranged in a ring are fixedly mounted on the side of the turntable away from the rotating column. Gear teeth are slidably provided inside the rectangular blocks. A spring is fixedly mounted at the end of the gear teeth near the center of the turntable. A fixing block is fixedly mounted at the end of the spring away from the gear teeth, and the fixing block is fixedly installed inside the rectangular blocks. Two sliders are fixedly mounted on the gear teeth, and the sliders can slide inside the rectangular blocks. Two ball bearings are slidably provided inside the rectangular blocks. The two ball bearings are located on the side of the sliders near the center of the turntable and can contact the sliders. A fixing cylinder is fixedly mounted on the side of the two rectangular plates away from each other. An internal gear ring is fixedly mounted on the inner ring of the fixing cylinder, and the gear teeth can engage with the internal gear ring.

[0014] Preferably, the fixing mechanism includes several first buckles and several second buckles distributed vertically. The first and second buckles of the two fixing mechanisms are staggered and distributed on the inner wall of the elevator body and the third deflection plate. A hinge seat is fixedly installed on the uppermost first buckle. A triangular block is rotatably provided on the hinge seat. The same insert rod can be inserted into several first buckles and several second buckles. The lower end of the insert rod can be inserted into the bottom of the escape elevator. A limit ring is fixedly installed on the upper end of the insert rod. The bottom end of the limit ring can contact the top end of the uppermost first buckle. The top end of the limit ring can contact the triangular block. Two fixing mechanisms are fixedly installed between the escape component and the elevator component.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention sets up a first deflection plate, a second deflection plate and a third deflection plate so that the fixed plate, the first deflection plate, the second deflection plate and the third deflection plate can form a rectangular escape cabin for trapped personnel to stand in. By setting up a threaded sleeve, a threaded rod and a moving block, the rotation of the threaded sleeve can drive the moving block to move, so as to achieve the effect of separating the escape elevator from the elevator body.

[0017] 2. By setting up ball bearings, gear teeth, and an internal gear ring, the rotation generated by the downward fall of the escape elevator due to inertia can drive the ball bearings to push the gear teeth to engage with the internal gear ring, which can ensure that the escape elevator stops falling after a very short distance.

[0018] 2. This invention, by setting a second rotating shaft and a fifth gear, enables the second rotating shaft to reciprocate, driving the fifth gear to reciprocate a short distance on the rack connected to the second limiting post. This prevents the teeth of the fall arrest mechanism from engaging with the inner gear ring under the tension of the spring. At this time, the eighth gear is also no longer jammed with the rack. This allows the escape elevator to be controlled by the rotation direction of the second emergency motor to move up and down along the second limiting post, helping trapped personnel inside the escape elevator escape from the floor where the fire occurred. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0022] Figure 3 This is a schematic cross-sectional view of the elevator component of the present invention.

[0023] Figure 4 This is a schematic diagram of the folding structure of the escape component of the present invention.

[0024] Figure 5 This is a cross-sectional structural diagram of the fall protection mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the first deflection plate and the second deflection plate of the present invention.

[0026] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0027] Figure 8 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B.

[0028] Figure 9 For the present invention Figure 2 Enlarged schematic diagram of the structure at point C.

[0029] Figure 10 For the present invention Figure 3 Enlarged schematic diagram of the structure at point D.

[0030] Figure 11 For the present invention Figure 3 Enlarged schematic diagram of the structure at point E in the middle.

[0031] Figure 12 For the present invention Figure 5 Enlarged schematic diagram of the structure at point F.

[0032] In the diagram: 1. Elevator shaft; 101. Fixed beam; 102. Support column; 103. First limiting post; 104. Second limiting post; 105. Rack; 2. Drive mechanism; 201. Support bracket; 202. First support plate; 203. Winding drum; 204. First rotating shaft; 205. First bevel gear; 206. First motor bracket; 207. First drive shaft; 208. First gear; 209. Second gear; 210. Elevator motor; 211. Second bevel gear 3. First limiting mechanism; 4. Elevator assembly; 401. Elevator body; 402. First slide rail; 403. Second slide rail; 5. Second limiting mechanism; 6. Escape assembly; 601. Escape elevator; 602. Connecting column; 603. Third slide rail; 604. Fourth slide rail; 605. Fixing plate; 606. First deflection plate; 607. Second deflection plate; 608. Third deflection plate; 609. Central shaft; 610. Pulley; 611. Rectangular hole; 612. Rotation. 613. Cylinder; 614. Side gear ring; 615. Fixed column; 616. First emergency motor; 617. Third gear; 618. Threaded sleeve; 619. Fourth gear; 620. Threaded rod; 621. Moving block; 622. Second support plate; 623. Second rotating shaft; 624. Fifth gear; 625. Third bevel gear; 626. Second motor bracket; 627. Second drive shaft; 628. Fourth bevel gear; 629. Sixth gear; 630. 7. Second emergency motor; 7. Fall protection mechanism; 701. Rectangular plate; 702. Rotating column; 703. Eighth gear; 704. Turntable; 705. Rectangular block; 706. Gear tooth; 707. Spring; 708. Fixing block; 709. Sliding block; 710. Ball bearing; 711. Fixing cylinder; 712. Internal gear ring; 8. Fixing mechanism; 801. First buckle; 802. Second buckle; 803. Hinge seat; 804. Triangular block; 805. Insert rod; 806. Limiting ring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example: Figure 1-12As shown, the present invention provides a fire-resistant safety elevator, including an elevator shaft 1. A drive mechanism 2 is fixedly installed at the top of the elevator shaft 1. An elevator assembly 4 is slidably installed inside the elevator shaft 1. An escape assembly 6 is slidably installed inside the elevator assembly 4. The escape assembly 6 can be fixedly installed inside the elevator assembly 4. Anti-fall mechanisms 7 are fixedly installed at each of the eight corners of the escape assembly 6. Two fixed mechanisms 8 are fixedly installed between the escape assembly 6 and the elevator assembly 4 in a staggered manner.

[0035] The elevator shaft 1 includes two fixed beams 101 distributed vertically. Four rectangular support columns 102, four rectangular first limiting columns 103, and four rectangular second limiting columns 104 are fixedly installed between the two fixed beams 101, arranged sequentially from the outside to the inside. The drive mechanism 2 includes a support bracket 201, which is fixedly installed at the top of the upper fixed beam 101. Two sets of first support plates 202 are fixedly installed at the top of the support bracket 201. Two first rotating shafts 204 are rotatably mounted on the two sets of first support plates 202 via bearings. Two winding drums 203 are fixedly installed on the first rotating shafts 204, and the two winding drums 203 are respectively located in the two sets of first support plates 202. Inside the first support plate 202, a first motor bracket 206 is provided between the two sets of first support plates 202, and the first motor bracket 206 is fixedly installed at the center of the top of the fixed beam 101 located above. A first drive shaft 207 is rotatably mounted on the first motor bracket 206 via bearings. A second bevel gear 211 is fixedly mounted on both ends of the first drive shaft 207. A first bevel gear 205 is fixedly mounted on both of the two first rotating shafts 204, and the two first bevel gears 205 mesh with the corresponding second bevel gears 211 respectively. A first gear 208 is fixedly mounted on the first drive shaft 207. An elevator motor 210 is fixedly mounted on the first motor bracket 206. A second gear 209 is fixedly mounted on the output end of the elevator motor 210, and the second gear 209 meshes with the first gear 208.

[0036] By adopting the above technical solution, the elevator motor 210 can drive the winding drum 203 to rotate.

[0037] Two first limiting mechanisms 3 are fixedly installed on both sides of the support bracket 201, which are parallel to the first rotating shaft 204. The cable on the winding drum 203 can pass through the first limiting mechanism 3 on one side. The elevator assembly 4 includes an elevator body 401. Two second limiting mechanisms 5 are fixedly installed on both sides of the elevator body 401 adjacent to the elevator door. The four second limiting mechanisms 5 are slidably arranged on four rectangularly distributed first limiting posts 103. The cable on the winding drum 203 can pass through the fixed beam 101 located above and is fixedly connected to the top of the elevator body 401.

[0038] By adopting the above technical solution, the elevator body 401 can be raised and lowered by the rotation of the winding drum 203.

[0039] The escape assembly 6 includes an escape elevator 601, which slides through the elevator body 401. The escape elevator 601 is slidably mounted on four rectangularly distributed second limiting posts 104. Two connecting posts 602 are fixedly installed on the side of the escape elevator 601 closest to the elevator door of the elevator body 401. The connecting posts 602 are slidably mounted on two of the four second limiting posts 104 closest to the elevator door of the elevator body 401. A fixing plate 605 is fixedly installed inside the escape elevator 601 on the side of the elevator door away from the elevator body 401. First deflection plates 606 are hinged to both sides of the fixing plate 605 near the side wall adjacent to the elevator door of the elevator body 401. A second deflection plate 607 is provided on the side of the first deflection plate 606 away from the fixing plate 605, and a third deflection plate 608 is provided on the side of the second deflection plate 607 away from the first deflection plate 606. The second deflecting plate 607 is hinged to two central shafts 609 on both sides near the first deflecting plate 606 and the third deflecting plate 608, and the two central shafts 609 are respectively hinged to the first deflecting plate 606 and the third deflecting plate 608. The escape elevator 601 has two symmetrically distributed third slide grooves 603 and two symmetrically distributed fourth slide grooves 604 at the top and bottom of the interior. The elevator body 401 has two symmetrically distributed first slide grooves 402 and two symmetrically distributed second slide grooves 403 at the top and bottom of the interior. The first slide grooves 402 and third slide grooves 603 on the same side can form a first slide rail, and the second slide grooves 403 and fourth slide grooves 604 on the same side can form a second slide rail. Both ends of the central shaft 609 are rotatably provided with pulleys 610 through bearings, and the pulleys 610 at the ends of the four central shafts 609 slide in the corresponding upper and lower distributed first and second slide rails.

[0040] By adopting the above technical solution, the fixed plate 605, the first deflection plate 606, the second deflection plate 607 and the third deflection plate 608 can form a rectangular escape compartment that can be used by trapped personnel to stand in.

[0041] The escape elevator 601 has a rectangular hole 611 at its bottom. A rotating cylinder 612 is rotatably mounted inside the rectangular hole 611. A side gear ring 613 is fixedly mounted on the top of the rotating cylinder 612. A fixed post 614 is located at the center of the rectangular hole 611 and is fixedly connected to the escape elevator 601. A first emergency motor 615 is fixedly mounted on the fixed post 614. A third gear 616 is fixedly mounted on the output end of the first emergency motor 615 and meshes with the side gear ring 613. The fixed post 614 and the escape elevator 601 are rotatably connected by bearings. There are three threaded sleeves 617 distributed in a fan shape, and the directions of the three threaded sleeves 617 are consistent with the elevator door of the elevator body 401 and the two side walls adjacent to the elevator door, respectively. A fourth gear 618 is fixedly installed on the outer ring of the threaded sleeve 617, and the fourth gear 618 meshes with the side gear ring 613. A threaded rod 619 is provided inside the threaded sleeve 617. A movable block 620 is fixedly installed on the end of the threaded rod 619 away from the fixed column 614, and the movable block 620 is slidably disposed at the bottom end of the escape elevator 601. The movable block 620 can be slidably inserted into the elevator body 401.

[0042] By adopting the above technical solution, the movable block 620 can be extracted from the elevator body 401, thus completing the separation of the escape elevator 601 from the elevator body 401.

[0043] The top of the escape elevator 601 is fixedly equipped with two sets of second support plates 621 and a second motor bracket 625. Each of the two sets of second support plates 621 has a second rotating shaft 622 rotatably mounted via bearings. Two fifth gears 623 and a third bevel gear 624 are fixedly mounted on the second rotating shaft 622. A rack 105 is fixedly mounted on the second limiting post 104, and the four fifth gears 623 mesh with the racks 105 on the four second limiting posts 104 respectively. A second drive shaft 626 is rotatably mounted on the second motor bracket 625 via bearings. Fourth bevel gears 627 are fixedly mounted at both ends of the second drive shaft 626, and the two fourth bevel gears 627 mesh with the two third bevel gears 624 respectively. A sixth gear 628 is fixedly mounted in the middle of the second drive shaft 626. A second emergency motor 630 is fixedly mounted at the center of the top of the escape elevator 601. A seventh gear 629 is fixedly mounted at the output end of the second emergency motor 630, and the seventh gear 629 meshes with the sixth gear 628.

[0044] By adopting the above technical solution, the rotation of the second emergency motor 630 can control the escape elevator 601 to move up and down along the second limit column 104, helping the trapped people inside the escape elevator 601 to escape from the floor where the fire occurred.

[0045] The fall protection mechanism 7 includes two rectangular plates 701, both of which are fixedly installed inside the escape elevator 601. A rotating column 702 is rotatably mounted at the center of each rectangular plate 701 via a bearing. An eighth gear 703 is fixedly mounted in the middle of the rotating column 702, and the eighth gear 703 meshes with a rack 105 on a second limiting column 104 on one side. Turntables 704 are fixedly mounted at both ends of the rotating column 702. Four rectangular blocks 705 are fixedly mounted in a ring on the side of the turntable 704 away from the rotating column 702. Gear teeth 706 slide inside each rectangular block 705, and a spring is fixedly mounted at one end of each gear tooth 706 near the center of the turntable 704. 707, a fixing block 708 is fixedly installed at the end of the spring 707 away from the gear tooth 706, and the fixing block 708 is fixedly installed inside the rectangular block 705. Two sliders 709 are fixedly installed on the gear tooth 706, and the sliders 709 can slide inside the rectangular block 705. Two balls 710 are slidably arranged inside the rectangular block 705. The two balls 710 are respectively located on the side of the slider 709 near the center of the turntable 704, and can contact the slider 709. A fixing cylinder 711 is fixedly installed on the side of the two rectangular plates 701 away from each other. An internal gear ring 712 is fixedly installed on the inner ring of the fixing cylinder 711, and the gear tooth 706 can engage with the internal gear ring 712.

[0046] By adopting the above technical solution, the centrifugal force of the ball bearing 710 is used to drive the gear tooth 706 to engage with the internal gear ring 712, ensuring that the escape elevator 601 can stop falling after falling a very short distance.

[0047] The fixing mechanism 8 includes several first buckles 801 and several second buckles 802 distributed vertically. The first buckles 801 and second buckles 802 of the two fixing mechanisms 8 are staggered and distributed on the inner wall of the elevator body 401 and the third deflection plate 608. A hinge seat 803 is fixedly installed on the uppermost first buckle 801. A triangular block 804 is rotatably provided on the hinge seat 803. The same insert rod 805 can be inserted into several first buckles 801 and several second buckles 802. The lower end of the insert rod 805 can be inserted into the bottom of the escape elevator 601. A limiting ring 806 is fixedly installed on the upper end of the insert rod 805. The bottom end of the limiting ring 806 can contact the top end of the upper first buckle 801. The top end of the limiting ring 806 can contact the triangular block 804. Two fixing mechanisms 8 are fixedly installed between the escape component 6 and the elevator component 4.

[0048] By adopting the above technical solution, the fixed mechanism 8 is used to connect the escape elevator 601 and the elevator body 401, and the two third deflection plates 608 can be connected to each other.

[0049] Working principle: When the elevator body 401 is damaged by fire and cannot move, or when the drive mechanism 2 of the elevator body 401 cannot function normally due to fire, the trapped personnel inside the elevator can move the triangular block 804 so that the triangular block 804 no longer limits the limiting ring 806 on the plug rod 805. Then, the plug rods 805 of the two fixing mechanisms 8 are pulled out, and the third deflection plate 608 is pulled, causing the second deflection plate 607 and the first deflection plate 606 to move accordingly. At this time, the first deflection plate... The pulleys 610 on the central shaft 609 at the connection between the second deflecting plate 606 and the third deflecting plate 607, and on the central shaft 609 at the connection between the second deflecting plate 607 and the third deflecting plate 608, slide inside the first slide rail formed by the first slide groove 402 and the third slide groove 603, and the second slide rail formed by the second slide groove 403 and the fourth slide groove 604, respectively, so that the first deflecting plate 606 and the second deflecting plate 607 form a plane and remain perpendicular to the fixed plate 605. Then, the two third deflecting plates... The rotating plate 608 forms a plane. A rod 805 is inserted into the first latch 801 and the second latch 802 on the two third rotating plates 608, and then inserted into the bottom of the escape elevator 601. The triangular block 804 is then moved to contact the limiting ring 806 on the rod 805, connecting the two third rotating plates 608, thus forming a rectangular escape compartment for trapped personnel to stand in. The first emergency motor 615 is then activated, driving the... The rotation of the third gear 616 drives the rotation of the side gear ring 613, which in turn drives the rotation of the three fan-shaped fourth gears 618, which in turn drives the rotation of the threaded sleeve 617, which in turn drives the rotation of the threaded rod 619 and the moving block 620 connected to the threaded rod 619 to slide at the bottom of the escape elevator 601, so that the moving block 620 is pulled out from inside the elevator body 401, thereby completing the separation of the escape elevator 601 from the elevator body 401.

[0050] At this moment, the escape elevator 601 will fall downwards due to inertia. As the escape elevator 601 falls, the eighth gear 703 of the fall protection mechanism 7 meshes with the rack 105 on the second limit post 104, causing the eighth gear 703 to rotate rapidly. The rotation of the eighth gear 703 drives the rotating column 702 to rotate, which in turn drives the rectangular block 705 on the turntable 704 to rotate in a circular motion. The rotation of the rectangular block 705 generates centrifugal force, causing the internal ball bearings 710 to rotate in a circular motion and generate outward force. The pressure pushes the slider 709 away from the turntable 704 and stretches the spring 707. The movement of the slider 709 causes the connected gear 706 to move accordingly, so that the gear 706 engages with the internal gear ring 712 inside the fixed cylinder 711 connected to the rectangular plate 701, thereby preventing the gear 706 from rotating. At the same time, the gear 706 can react on the eighth gear 703, thereby preventing the eighth gear 703 from rotating, which can ensure that the escape elevator 601 stops falling after falling a very short distance.

[0051] Then, the second emergency motor 630 performs a quarter-turn reciprocating rotation, which drives the seventh gear 629 to rotate. The rotation of the seventh gear 629 drives the sixth gear 628 to rotate, which in turn drives the second drive shaft 626 to rotate. The rotation of the second drive shaft 626 drives the fourth bevel gear 627 to rotate, which in turn drives the third bevel gear 624 to rotate. The rotation of the third bevel gear 624 drives the second rotating shaft 622 to rotate, which in turn drives the fifth gear... Rotation of gear 623 causes the fifth gear 623 to reciprocate a short distance on the rack 105 connected to the second limit post 104. This causes the gear teeth 706 of the fall arrest mechanism 7 to no longer engage with the inner gear ring 712 under the tension of the spring 707. At this time, the eighth gear 703 is also no longer jammed with the rack 105. This allows the escape elevator 601 to be controlled by the rotation direction of the second emergency motor 630 to move up and down along the second limit post 104, helping trapped personnel inside the escape elevator 601 escape from the floor where the fire occurred.

[0052] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A fire-resistant and safe elevator, comprising an elevator shaft, characterized in that: A drive mechanism is fixedly installed at the top of the elevator shaft. An elevator assembly is slidably installed inside the elevator shaft. An escape assembly is slidably installed inside the elevator assembly. The escape assembly can be fixedly installed inside the elevator assembly. Anti-fall mechanisms are fixedly installed at each of the eight corners of the escape assembly. Two fixed mechanisms are fixedly installed between the escape assembly and the elevator assembly in a staggered manner. The elevator shaft includes two fixed beams distributed vertically. Four rectangular support columns, four rectangular first limiting columns, and four rectangular second limiting columns are fixedly installed between the two fixed beams, and the four support columns, four first limiting columns, and four second limiting columns are distributed sequentially from the outside to the inside. The escape assembly includes an escape elevator, which slides through the elevator body and is slidably mounted on four rectangularly distributed second limiting posts. The top of the escape elevator is fixedly equipped with two sets of second support plates and a second motor bracket. Each of the two sets of second support plates has a second rotating shaft rotatably mounted on a bearing. Two fifth gears and a third bevel gear are fixedly mounted on the second rotating shaft. A rack is fixedly mounted on the second limiting post, and the four fifth gears mesh with the racks on the four second limiting posts respectively. A second drive shaft is rotatably mounted on the second motor bracket via a bearing. A fourth bevel gear is fixedly mounted at both ends of the second drive shaft, and the two fourth bevel gears mesh with the two third bevel gears respectively.

2. A fire-resistant and safe elevator as described in claim 1, characterized in that, The driving mechanism includes a support bracket, which is fixedly installed on the top of the upper fixed beam. Two sets of first support plates are fixedly installed on the top of the support bracket. Two first rotating shafts are rotatably mounted on the two sets of first support plates via bearings. Two winding bobbins are fixedly mounted on the first rotating shafts, and the two winding bobbins are respectively located inside the two sets of first support plates. A first motor bracket is provided between the two sets of first support plates, and the first motor bracket is fixedly installed at the center of the top of the upper fixed beam. A first drive shaft is rotatably mounted on the first motor bracket via bearings. A second bevel gear is fixedly mounted on both ends of the first drive shaft. A first bevel gear is fixedly mounted on both of the two first rotating shafts, and the two first bevel gears mesh with the corresponding second bevel gears. A first gear is fixedly mounted on the first drive shaft. An elevator motor is fixedly mounted on the first motor bracket. A second gear is fixedly mounted on the output end of the elevator motor, and the second gear meshes with the first gear.

3. A fire-resistant and safe elevator as described in claim 2, characterized in that, Two first limiting mechanisms are fixedly installed on both sides of the support bracket that are parallel to the first rotating shaft. The cable on the winding drum can pass through the inside of the first limiting mechanism on one side. The elevator assembly includes an elevator body. Two second limiting mechanisms are fixedly installed on both sides of the elevator body that are adjacent to the elevator door. The four second limiting mechanisms are slidably arranged on four rectangularly distributed first limiting posts. The cable on the winding drum can pass through the fixed beam located above and is fixedly connected to the top of the elevator body.

4. A fire-resistant and safe elevator as described in claim 3, characterized in that, Two connecting columns are fixedly installed on the side of the elevator door near the elevator body of the escape elevator. The connecting columns are slidably mounted on the two second limiting columns near the elevator door of the elevator body among the four second limiting columns. A fixed plate is fixedly installed on the side of the elevator door away from the elevator body inside the escape elevator. A first deflection plate is hinged to both sides of the fixed plate near the side wall adjacent to the elevator door of the elevator body. A second deflection plate is provided on the side of the first deflection plate away from the fixed plate. A third deflection plate is provided on the side of the second deflection plate away from the first deflection plate. A central shaft is hinged to both sides of the second deflection plate near the first deflection plate and the third deflection plate, and the two central shafts are respectively hinged to the first deflection plate and the third deflection plate.

5. A fire-resistant and safe elevator as described in claim 4, characterized in that, The escape elevator has two symmetrically distributed third slide grooves and two symmetrically distributed fourth slide grooves at both the top and bottom. The elevator body also has two symmetrically distributed first slide grooves and two symmetrically distributed second slide grooves at both the top and bottom. The first and third slide grooves on the same side can form a first slide rail, and the second and fourth slide grooves on the same side can form a second slide rail. Both ends of the central shaft are equipped with pulleys that rotate through bearings, and the pulleys at the four ends of the central shaft slide inside the corresponding upper and lower distributed first and second slide rails.

6. A fire-resistant and safe elevator as described in claim 5, characterized in that, The escape elevator has a rectangular hole at its bottom. A rotating cylinder is mounted inside the rectangular hole, and a side gear ring is fixedly installed at the top of the rotating cylinder. A fixed column is located at the center of the rectangular hole and is fixedly connected to the escape elevator. A first emergency motor is fixedly installed on the fixed column, and a third gear is fixedly installed at the output end of the first emergency motor. The third gear meshes with the side gear ring. Three threaded sleeves are rotatably arranged in a fan shape on the fixed column and the escape elevator via bearings. The directions of the three threaded sleeves are consistent with the elevator door of the elevator body and the two side walls adjacent to the elevator door, respectively. A fourth gear is fixedly installed on the outer ring of the threaded sleeve, and the fourth gear meshes with the side gear ring. A threaded rod is threaded inside the threaded sleeve. A movable block is fixedly installed at the end of the threaded rod away from the fixed column, and the movable block is slidably disposed at the bottom of the escape elevator. The movable block can be slidably inserted into the elevator body.

7. A fire-resistant and safe elevator as described in claim 6, characterized in that, A sixth gear is fixedly installed in the middle of the second drive shaft, and a second emergency motor is fixedly installed at the center of the top of the escape elevator. A seventh gear is fixedly installed at the output end of the second emergency motor, and the seventh gear meshes with the sixth gear.

8. A fire-resistant and safe elevator as described in claim 7, characterized in that, The fall protection mechanism includes two rectangular plates, both of which are fixedly installed inside the escape elevator. A rotating column is rotatably mounted at the center of the two rectangular plates via a bearing. An eighth gear is fixedly mounted in the middle of the rotating column, and the eighth gear meshes with a rack on a second limiting column on one side. Turntables are fixedly mounted at both ends of the rotating column. Four rectangular blocks are fixedly mounted in a ring on the side of the turntable away from the rotating column. Gear teeth are slidably mounted inside the rectangular blocks. A spring is fixedly mounted at the end of the gear teeth near the center of the turntable. A fixing block is fixedly mounted at the end of the spring away from the gear teeth, and the fixing block is fixedly mounted inside the rectangular block. Two sliders are fixedly mounted on the gear teeth, and the sliders can slide inside the rectangular blocks. Two ball bearings are slidably mounted inside the rectangular blocks. The two ball bearings are located on the side of the sliders near the center of the turntable and can contact the sliders. A fixing cylinder is fixedly mounted on the side of the two rectangular plates away from each other. An internal gear ring is fixedly mounted on the inner ring of the fixing cylinder, and the gear teeth can engage with the internal gear ring.

9. A fire-resistant and safe elevator as described in claim 4, characterized in that, The fixing mechanism includes several first buckles and several second buckles distributed vertically. The first and second buckles of the two fixing mechanisms are staggered and distributed on the inner wall of the elevator body and the third deflection plate. A hinge seat is fixedly installed on the uppermost first buckle. A triangular block is rotatably provided on the hinge seat. The same insert rod can be inserted into several first buckles and several second buckles. The lower end of the insert rod can be inserted into the bottom of the escape elevator. A limit ring is fixedly installed on the upper end of the insert rod. The bottom end of the limit ring can contact the top end of the upper first buckle. The top end of the limit ring can contact the triangular block. Two fixing mechanisms are fixedly installed between the escape component and the elevator component.

Images