CN112623906B

CN112623906B - Anti-falling device for building type machine-room-less elevator and using method

Info

Publication number: CN112623906B
Application number: CN202011308973.3A
Authority: CN
Inventors: 虞文明; 汪亚伟
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2022-05-13
Anticipated expiration: 2040-11-20
Also published as: CN112623906A

Abstract

The invention discloses a falling prevention device for a building machine-room-less elevator and a using method of the falling prevention device. This device is when the tractive force disappears, through the second spring, bull stick and guide pulley cooperation are used down, make the hinge bar drive splint rebound and closely laminate rather than elevartor shaft body lateral wall, and one side of splint sets up the skid resistant course, effectual increase splint and the frictional resistance of elevartor shaft body like this, make the effectual fixing of car in the elevartor shaft body, avoid descending to cause serious injury to the inside personnel of car, and even the car is inside fully loaded with heavily, the speed that can also effectual reduction car descends through the setting of splint, and at first rack, the setting of gear and second rack, when making the car slowly fall down with ground contact, setting at a plurality of first springs, the effectual cushioning effect that plays, play duplicate protection to inside personnel, effectual assurance personnel safety falls to the ground.

Description

Anti-falling device for building type machine-room-less elevator and using method

Technical Field

The invention relates to the technical field of buildings, in particular to a falling-preventing device for a building machine-room-less elevator and a using method thereof.

Background

The machine room-less elevator is used as a common tool for vertical lifting of construction sites, has the advantages of high transmission height, high acceleration, rapid lifting and the like, and is widely applied to civil and industrial fields, such as large markets, teaching buildings, hospitals, buildings, mines, mountains and the like. Complicated and variable application environments also put higher requirements on various safety structures of the elevator without the machine room. However, in practical use, the problems of failure of a safety device, insufficient traction force, failure of a speed limiter and the like of the elevator often occur, the elevator falling accident is caused, great property loss and casualty accidents are caused, the safety of passengers cannot be well guaranteed when the elevator falls due to the conventional elevator shaft bottom buffering device, the arms can be fractured or even casualty can be caused as long as the safety problem is not well solved.

Disclosure of Invention

In order to solve the existing problems, the invention provides a falling prevention device for a building machine-room-less elevator and a using method thereof.

The invention is realized by the following technical scheme:

a falling-preventing device for a building type machine room free elevator comprises a car and an elevator shaft body, wherein the car is arranged in the elevator shaft body, fixing plates are symmetrically and fixedly connected with two sides of the car, T-shaped slide rails are arranged on the fixing plates, T-shaped slide blocks are arranged in the T-shaped slide rails and are in fit sliding connection with the T-shaped slide rails, one ends of the T-shaped slide blocks extend out of the T-shaped slide rails and are fixedly connected with sleeves, square slide bars are arranged in the sleeves and are in fit sliding connection with the square slide bars, one ends of the square slide bars extend out of the sleeves and are fixedly connected with clamping plates, one side of each clamping plate is hinged with two hinge rods, each hinge rod is provided with a through hole, four corners of the top surface of the car are fixedly connected with fixing blocks, four fixing blocks are respectively hinged and connected with four hinge rods through hinge pins, the hinge pins penetrate through the through holes in each hinge rod, and are in fit sliding connection with the through holes, the top surface fixedly connected with second cover body of car, be equipped with the second slider in the second cover body and laminate sliding connection rather than, fixedly connected with second spring between the bottom surface of second slider and the top surface of car, the top surface symmetry fixedly connected with second slide bar of second slider, the top surface of second slide bar passes second cover body top surface and laminates sliding connection rather than, be equipped with the guide pulley between two second slide bars outside the second cover body, the both sides fixedly connected with rotary rod of guide pulley, and the rotary rod passes two second slide bar swivelling joint, and the rotary rod of two second slide bars is carried on the back of the body one side and is all laminated the connecting ring, and its lantern ring overlaps on the rotary rod of guide pulley both sides and rather than fixed connection, the equal fixedly connected with of both sides of every second slide bar articulates the piece, and all swivelling joint has the bull stick on every articulates piece, the one end fixedly connected with of bull stick keeps off the ring, the baffle ring is connected with the hinging block in a laminating way, the other end of the rotating rod is fixedly connected with one side of the top end of the corresponding hinging rod, the guide wheel is provided with the existing traction rope, the cars on the two sides of each fixing plate are fixedly connected with U-shaped rods, the vertical rods of the U-shaped rods are sleeved with the same U-shaped plate and are in sliding connection with the U-shaped plates in a laminating way, the inner sides of the U-shaped plates are in sliding connection with the side walls of the cars, the bottom surfaces of the two sides of the U-shaped plates are fixedly connected with a plurality of first cover bodies, first slide blocks are arranged in the first cover bodies and are in sliding connection with the first cover bodies in a laminating way, the bottom surfaces of the first slide blocks are fixedly connected with a support plate, and a first spring is fixedly connected between the top surface of the first slide block and the bottom surface of the U-shaped plate, two second racks of the equal symmetry fixedly connected with of U template both sides top surface, a connecting plate of equal fixedly connected with between every U type pole and the fixed plate, be equipped with the rotary rod on the connecting plate and rather than swivelling joint, the both ends of rotary rod all pass the connecting plate both sides cover and have the fender ring, keep off ring and rotary rod fixed connection, two on the rotary rod keep off the ring and are connected with the laminating of connecting plate both sides respectively, the one end fixedly connected with gear of rotary rod, the gear is connected with the second rack meshing, telescopic bilateral symmetry fixedly connected with connecting rod, the first rack of one end fixedly connected with of connecting rod, first rack is connected rather than corresponding gear engagement.

Preferably, the bottom surface of car is parallel and level with the extension board bottom surface mutually.

Preferably, the second spring is a tension spring, and the tension of the second spring is 20N-50N less than the traction force.

Preferably, the compression spring of the first spring has an elastic force of 100N.

Preferably, one side of the splint is provided with an anti-slip layer.

Also discloses a use method of the anti-falling device of the building machine-roomless elevator, which comprises the following steps: when the traction force is smaller than the safe traction force range or the traction force disappears, the cage can fall under the action of gravity, and when the guide wheel loses the traction force of the traction rope, under the arrangement of the second spring, the second spring pulls the second slide bar and the second slide block to slide towards the interior of the second cover body, thereby leading the hinged block, the rotating rod and the guide wheel to descend, further leading the hinged rod hinged and connected on the fixed block to deflect and approach to the side wall of the elevator shaft body, meanwhile, the clamping plate moves upwards and is tightly attached to the side wall of the elevator shaft body under the arrangement of the T-shaped sliding rail, the T-shaped sliding block, the sleeve and the square sliding rod, and one side of the clamping plate is provided with the anti-skid layer, so that the frictional resistance between the clamping plate and the elevator shaft body is effectively increased, the lift car is effectively fixed in the lift shaft body, and serious injury to personnel in the lift car due to landing is avoided; when the inside heavily loaded time of car, the speed that can effectual reduction car descend through the setting of splint, and at sleeve rebound's in-process, drive connecting rod and first rack synchronous rising, and then make first rack meshing gear revolve, and the gear is meshing the second rack decline at rotatory in-process, further make the second rack move the U template and slide downwards under the direction of U type pole, and then make the extension board, first slide bar, first slider, first cover body and first spring synchronous decline.

Compared with the prior art, the invention has the beneficial effects that: when the traction force is smaller than the safe traction force range or the traction force disappears, the clamping plate moves upwards and is tightly attached to the side wall of the elevator shaft body through the cooperation of the second spring, the rotating rod and the guide wheel, and the anti-skid layer is arranged on one side of the clamping plate, so that the friction resistance between the clamping plate and the elevator shaft body is effectively increased, the car is effectively fixed in the elevator shaft body, the serious injury to personnel in the car caused by falling is avoided, even if the car is fully loaded and heavy, the falling speed of the car can be effectively reduced through the arrangement of the clamping plate, the first sliding rod, the first sliding block, the first cover body and the first spring synchronously descend under the arrangement of the first rack, the gear and the second rack, so that when the car slowly falls down to be contacted with the ground, the arrangement of the first springs effectively plays a role in buffering role, and further causes the falling accident of the elevator, the double protection is performed on the internal personnel, and the safety of the personnel is effectively ensured to fall to the ground.

Drawings

FIG. 1 is a schematic representation of the structure of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a top plan view of the construction of FIG. 1 in accordance with the present invention;

in the figure: the elevator car comprises an elevator car 1, a U-shaped rod 2, a support plate 3, a first sliding rod 4, a first sliding block 5, a first cover body 6, a first spring 7, a U-shaped plate 8, a clamping plate 9, a first rack 10, a hinge rod 11, a fixing block 12, a through hole 13, a hinge block 14, a rotating rod 15, a guide wheel 16, a traction rope 17, a baffle ring 18, a second sliding rod 19, a second sliding block 20, a second cover body 21, a second spring 22, a fixing plate 23, a T-shaped sliding rail 24, a connecting plate 25, a baffle ring 26, a rotating rod 27, a gear 28, a second rack 29, a T-shaped sliding block 30, a sleeve 31, a square sliding rod 32, an elevator shaft body 33 and a connecting rod 34.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

example 1:

as shown in fig. 1, 2 and 3, a building type elevator falling prevention device without a machine room comprises a car 1 and an elevator shaft body 33, wherein the car 1 is arranged in the elevator shaft body 33, fixing plates 23 are symmetrically and fixedly connected to two sides of the car 1, T-shaped slide rails 24 are arranged on the fixing plates 23, T-shaped sliders 30 are arranged in the T-shaped slide rails 24 and are in fit sliding connection with the T-shaped slide rails, sleeves 31 are fixedly connected to one ends of the T-shaped sliders 30, which extend out of the T-shaped slide rails 24, square slide rods 32 are arranged in the sleeves 31 and are in fit sliding connection with the sleeves, clamping plates 9 are fixedly connected to one ends of the square slide rods 32, which extend out of the sleeves 31, two hinge rods 11 are hinged to one side of each clamping plate 9, through holes 13 are arranged on each hinge rod 11, fixed blocks 12 are fixedly connected to four corners of the top surface of the car 1, four fixed blocks 12 are respectively hinged to four hinge rods 11 through hinge pins, and the hinge pin passes through the through hole 13 on each hinge rod 11, the hinge pin is in fit sliding connection in the through hole 13, the top surface of the car 1 is fixedly connected with a second cover body 21, a second slider 20 is arranged in the second cover body 21 and is in fit sliding connection with the second cover body, a second spring 22 is fixedly connected between the bottom surface of the second slider 20 and the top surface of the car 1, the top surface of the second slider 20 is symmetrically and fixedly connected with second slide rods 19, the top surface of the second slide rod 19 passes through the top surface of the second cover body 21 and is in fit sliding connection with the second cover body, a guide wheel 16 is arranged between the two second slide rods 19 outside the second cover body 21, both sides of the guide wheel 16 are fixedly connected with rotary rods, the rotary rods pass through the two second slide rods 19 and are in rotary connection, the opposite sides of the rotary rods of the two second slide rods 19 are both in fit connection with a lantern ring, and the lantern ring is sleeved on the rotary rods on both sides of the guide wheel 16 and is fixedly connected with the rotary rods, the two sides of each second sliding rod 19 are fixedly connected with hinged blocks 14, each hinged block 14 is rotatably connected with a rotating rod 15, one end of each rotating rod 15 is fixedly connected with a baffle ring 18, the baffle rings 18 are jointed with the hinged blocks 14, the other end of each rotating rod 15 is fixedly connected with one side of the top end of the corresponding hinged rod 11, the guide wheel 16 is provided with an existing traction rope 17, the cars 1 on the two sides of each fixed plate 23 are fixedly connected with U-shaped rods 2, the vertical rods of the U-shaped rods 2 are sleeved with the same U-shaped plate 8 and are jointed with the same U-shaped plate 8 in a sliding manner, the inner side of the U-shaped plate 8 is jointed with the side wall of the car 1, the bottom surfaces on the two sides of the U-shaped plate 8 are fixedly connected with a plurality of first cover bodies 6, the first sliding blocks 5 are arranged in the first cover bodies 6 and are jointed with the first sliding blocks in a sliding manner, the bottom surfaces of the first sliding blocks 5 are fixedly connected with first sliding rods 4, the bottom surface of the first sliding rod 4 penetrates through the first cover body 6 and is in fit sliding connection with the first cover body 6, the bottom surface of the first sliding rod 4 outside the first cover body 6 is fixedly connected with a support plate 3, a first spring 7 is fixedly connected between the top surface of the first sliding block 5 and the bottom surface of the U-shaped plate 8, the top surfaces of two sides of the U-shaped plate 8 are symmetrically and fixedly connected with two second racks 29, a connecting plate 25 is fixedly connected between each U-shaped rod 2 and the fixing plate 23, a rotating rod 27 is arranged on the connecting plate 25 and is in rotating connection with the connecting plate 25, two ends of the rotating rod 27 are sleeved with baffle rings 26 through two sides of the connecting plate 25, the baffle rings 26 are fixedly connected with the rotating rod 27, the two baffle rings 26 on the rotating rod 27 are respectively in fit connection with two sides of the connecting plate 25, one end of the rotating rod 27 is fixedly connected with a gear 28, the gear 28 is in mesh connection with the second racks 29, and two sides of the sleeve 31 are symmetrically and fixedly connected with a connecting rod 34, one end of the connecting rod 34 is fixedly connected with a first rack 10, and the first rack 10 is engaged with the corresponding gear 28.

The bottom surface of car 1 is parallel and level with extension board 3 bottom surface mutually.

The second spring 22 is a tension spring, and the tension of the second spring is smaller than the traction force of 20N-50N.

The elasticity of the pressure spring of the first spring 7 is 100N.

And an anti-skid layer is arranged on one side of the clamping plate 9.

The working principle is as follows: in the use of the invention, as shown in fig. 1, in the state of the prior art, the car 1 is made to ascend and descend under the action of traction force, when the traction force is smaller than the safe traction force range or the traction force disappears, the car 1 will fall under the action of gravity, and at the same time when the guide pulley 16 loses the traction force of the traction rope 17, under the arrangement of the second spring 22, the second spring 22 pulls the second slide rod 19 and the second slide block 20 to slide towards the inside of the second cover 21, so that the hinge block 14, the rotating rod 15 and the guide pulley 16 descend, further the hinge rod 11 hinged on the fixed block 12 is deflected and approaches towards the sidewall of the elevator shaft body 33, and at the same time, the clamp plate 9 moves upwards and tightly fits with the sidewall of the elevator shaft body 33 under the arrangement of the T-shaped slide rail 24, the T-shaped slide block 30, the sleeve 31 and the square slide rod 32, and one side of the clamp plate 9 is provided with an anti-skid layer, the frictional resistance between the clamping plate 9 and the elevator shaft body 33 is effectively increased, so that the car 1 is effectively fixed in the elevator shaft body 33, and serious injury to people in the car 1 caused by falling is avoided, if the car 1 is fully loaded and heavy, the falling speed of the car 1 can be effectively reduced through the arrangement of the clamping plate 9, the connecting rod 34 and the first rack 10 are driven to synchronously rise in the upward moving process of the sleeve 31, the first rack 10 is meshed with the gear 28 to rotate, the gear 28 is meshed with the second rack 29 to descend in the rotating process, the second rack 29 drives the U-shaped plate 8 to downwards slide under the guidance of the U-shaped rod 2, the supporting plate 3, the first sliding rod 4, the first sliding block 5, the first cover body 6 and the first spring 7 synchronously descend, and at the moment, as shown in a state in figure 3, so that when the car 1 slowly falls down to contact with the ground, under the setting of first spring 7, effectual cushioning effect that plays, and then at the elevator accident of falling, play duplicate protection to inside personnel, the effectual personnel safety of ensureing falls to the ground.

Example 2:

as shown in fig. 1 to 3, a method for using a fall preventing device for a building type machine roomless elevator, when a traction force is smaller than a safe traction force range or the traction force is eliminated, a car 1 falls under the action of gravity, and at the same time when a guide pulley 16 loses the traction force of a traction rope 17, under the setting of a second spring 22, the second spring 22 pulls a second slide rod 19 and a second slide block 20 to slide towards the inside of a second cover body 21, so that a hinge block 14, a rotating rod 15 and the guide pulley 16 descend, further a hinge rod 11 hinged on a fixed block 12 deflects and approaches towards the side wall of an elevator shaft body 33, and simultaneously a clamping plate 9 moves upwards and tightly fits with the side wall of the elevator shaft body 33 under the setting of a T-shaped slide rail 24, a T-shaped slide block 30, a sleeve 31 and a square slide rod 32, and a skid preventing layer is arranged on one side of the clamping plate 9, thus effectively increasing the frictional resistance of the clamping plate 9 and the elevator shaft body 33, the lift car 1 is effectively fixed in the lift shaft body 33, and serious injury to people in the lift car 1 caused by falling is avoided; when the car 1 is internally loaded with heavy load, the speed of the falling of the car 1 can be effectively reduced through the arrangement of the clamping plate 9, in the process of upward movement of the sleeve 31, the connecting rod 34 and the first rack 10 are driven to ascend synchronously, so that the first rack 10 is meshed with the gear 28 to rotate, the gear 28 is meshed with the second rack 29 to descend in the rotating process, the second rack 29 is further driven to drive the U-shaped plate 8 to slide downwards under the guidance of the U-shaped rod 2, and the support plate 3, the first sliding rod 4, the first sliding block 5, the first cover body 6 and the first spring 7 descend synchronously.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a building class does not have computer lab elevator anti-falling device, includes car (1) and elevartor shaft body (33), car (1) sets up in elevartor shaft body (33), its characterized in that: the bilateral symmetry fixedly connected with fixed plate (23) of car (1), be equipped with T type slide rail (24) on fixed plate (23), be equipped with T type slider (30) in T type slide rail (24) and laminate sliding connection rather than, the outer fixedly connected with sleeve (31) of T type slide rail (24) is stretched out to the one end of T type slider (30), be equipped with square slide bar (32) in sleeve (31) and laminate sliding connection rather than, the outer fixedly connected with splint (9) of sleeve (31) is stretched out to the one end of square slide bar (32), and one side of every splint (9) is articulated to be connected with two articulated poles (11), is equipped with all to be equipped with through-hole (13) on every articulated pole (11), the equal fixedly connected with fixed block (12) in top surface four corners of car (1), four fixed blocks (12) are articulated through the round pin joint respectively pole (11), and the hinge pin passes through the through hole (13) on each hinge rod (11), the hinge pin is in fit sliding connection with the through hole (13), the top surface of the car (1) is fixedly connected with a second cover body (21), a second slider (20) is arranged in the second cover body (21) and is in fit sliding connection with the second cover body, a second spring (22) is fixedly connected between the bottom surface of the second slider (20) and the top surface of the car (1), the top surface of the second slider (20) is symmetrically and fixedly connected with second slide rods (19), the top surface of the second slide rod (19) passes through the top surface of the second cover body (21) and is in fit sliding connection with the second cover body, a guide wheel (16) is arranged between the two second slide rods (19) outside the second cover body (21), rotary rods are fixedly connected with the two sides of the guide wheel (16), and the rotary rods pass through the two second slide rods (19) for rotary connection, the rotary rods of the two second sliding rods (19) are mutually attached to one side and connected with a lantern ring, the lantern ring is sleeved on the rotary rods of the two sides of the guide wheel (16) and fixedly connected with the rotary rods, the two sides of each second sliding rod (19) are fixedly connected with the hinged blocks (14), each hinged block (14) is fixedly connected with the rotary rod (15), one end of each rotary rod (15) is fixedly connected with the baffle ring (18), the baffle ring (18) is attached to the hinged blocks (14), the other end of each rotary rod (15) is fixedly connected with one side of the top end of the corresponding hinged rod (11), the guide wheel (16) is provided with the existing traction rope (17), the cars (1) on the two sides of each fixed plate (23) are respectively and fixedly connected with the U-shaped rods (2), the vertical rods of the U-shaped rods (2) are sleeved with the same U-shaped plate (8) and are attached to the sliding connection with the same, and the inner side of each U-shaped plate (8) is attached to the side wall of each car (1), the bottom surfaces of two sides of the U-shaped plate (8) are fixedly connected with a plurality of first cover bodies (6), a first slider (5) is arranged in each first cover body (6) and is in sliding connection with the first cover body in a fitting manner, the bottom surface of each first slider (5) is fixedly connected with a first slide bar (4), the bottom surface of each first slide bar (4) penetrates through the corresponding first cover body (6) and is in sliding connection with the corresponding first cover body in a fitting manner, the bottom surface of each first slide bar (4) outside each first cover body (6) is fixedly connected with a support plate (3), a first spring (7) is fixedly connected between the top surface of each first slider (5) and the bottom surface of the corresponding U-shaped plate (8), the top surfaces of two sides of the corresponding U-shaped plate (8) are symmetrically and fixedly connected with two second racks (29), a connecting plate (25) is fixedly connected between each U-shaped rod (2) and the corresponding fixing plate (23), and a rotating rod (27) is arranged on each connecting plate (25) and is in a rotating connection with the corresponding U-shaped plate, the both ends of rotary rod (27) all pass connecting plate (25) both sides cover and have fender ring (26), keep off ring (26) and rotary rod (27) fixed connection, two on rotary rod (27) keep off ring (26) and are connected with the laminating of connecting plate (25) both sides respectively, the one end fixedly connected with gear (28) of rotary rod (27), gear (28) are connected with second rack (29) meshing, the bilateral symmetry fixedly connected with connecting rod (34) of sleeve (31), the first rack (10) of one end fixedly connected with of connecting rod (34), first rack (10) are connected rather than corresponding gear (28) meshing.

2. The anti-falling device of the building type machine-roomless elevator is characterized in that: the bottom surface of car (1) is parallel and level with extension board (3) bottom surface mutually.

3. The anti-falling device of the building type machine-roomless elevator is characterized in that: the second spring (22) is a tension spring, and the pulling force of the second spring is 20N-50N less than the pulling force.

4. The anti-falling device of the building type machine-roomless elevator is characterized in that: the elastic force of the pressure spring of the first spring (7) is 100N.

5. The anti-falling device of the building type machine-roomless elevator is characterized in that: and an anti-skid layer is arranged on one side of the clamping plate (9).

6. The use method of the anti-falling device of the building type machine-roomless elevator, according to any one of claims 1 to 5, is characterized in that: when the traction force is smaller than the safe traction force range or the traction force disappears, the car (1) falls under the action of gravity, and when the guide pulley (16) loses the traction force of the traction rope (17), under the arrangement of the second spring (22), the second spring (22) pulls the second sliding rod (19) and the second sliding block (20) to slide towards the inside of the second cover body (21), so that the hinge block (14), the rotating rod (15) and the guide pulley (16) descend, further the hinge rod (11) hinged and connected on the fixed block (12) deflects and approaches towards the side wall of the elevator shaft body (33), and simultaneously the clamping plate (9) moves upwards and is tightly attached to the side wall of the elevator shaft body (33) under the arrangement of the T-shaped sliding rail (24), the T-shaped sliding block (30), the sleeve (31) and the square sliding rod (32), and one side of the clamping plate (9) is provided with an anti-skid layer, the friction resistance between the clamping plate (9) and the elevator shaft body (33) is effectively increased, so that the car (1) is effectively fixed in the elevator shaft body (33), and the serious injury to personnel in the car (1) caused by falling is avoided; when the car (1) is internally fully loaded and heavy, the speed of the falling of the car (1) can be effectively reduced through the arrangement of the clamping plate (9), in the process of upward movement of the sleeve (31), the connecting rod (34) and the first rack (10) are driven to synchronously rise, the first rack (10) is meshed with the gear (28) to rotate, the gear (28) is meshed with the second rack (29) to descend in the rotating process, the second rack (29) is further driven to drive the U-shaped plate (8) to downwards slide under the guide of the U-shaped rod (2), and the support plate (3), the first sliding rod (4), the first sliding block (5), the first cover body (6) and the first spring (7) synchronously descend.