CN111173440A

CN111173440A - Escape movable ladder

Info

Publication number: CN111173440A
Application number: CN202010107857.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Qingdao Didu Life Support And Rescue Equipment Technology Co Ltd
Current assignee: Qingdao Didu Life Support And Rescue Equipment Technology Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-05-19

Abstract

The invention discloses an escape movable ladder which comprises a fixed frame fixed on a wall body, wherein second fixed rods are symmetrically and fixedly arranged below the left end and the right end of the fixed frame, a trapezoidal sliding groove is formed in each second fixed rod, a sliding groove communicated with the trapezoidal sliding groove is formed in the inner wall of each second fixed rod, a connecting rod is in sliding fit with each second fixed rod, the right end of each connecting rod is fixedly connected with a second connecting rod, each second connecting rod is in sliding fit with the corresponding sliding groove, and the right end of each second connecting rod extends into the corresponding trapezoidal sliding groove and is fixedly connected with a limiting friction block.

Description

Escape movable ladder

Technical Field

The invention relates to the technical field of ladders, in particular to an escape movable ladder.

Background

In modern times with the rapid increase in population, the demand for housing is becoming more and more important, and there are also more and more dense cells in cities. In an intensive community, twenty high buildings and short buildings below ten floors exist, the floors become important factors for limiting people to escape when a fire disaster occurs, a plurality of fire escape ladders are arranged abroad, and the fire escape ladders are installed less domestically, so that the space occupied on one hand influences light transmission, and the fire escape ladders easily become moving tools for thieves on the other hand.

Disclosure of Invention

Aiming at the technical defects, the invention provides an escape escalator which can overcome the defects.

The invention relates to an escape escalator, which comprises a fixed frame fixed on a wall body, wherein second fixed rods are symmetrically and fixedly arranged below the left end and the right end of the fixed frame, trapezoidal sliding grooves are formed in the second fixed rods, sliding grooves communicated with the trapezoidal sliding grooves are formed in the inner walls of the second fixed rods, connecting rods are in sliding fit in the second fixed rods, second connecting rods are fixedly connected to the right ends of the connecting rods, the second connecting rods are in sliding fit with the sliding grooves, limiting friction blocks are fixedly connected to the right ends of the second connecting rods, a plurality of groups of pedal rods are fixedly arranged between the left connecting rods and the right connecting rods, a chain is fixedly connected to the first pedal rod at the upper end, a first movable cavity is formed in the fixed frame, a control device is arranged in the first movable cavity, a fixed block is fixedly connected to the rear end of the fixed frame, first activity chamber left and right sides symmetry is equipped with second activity chamber, second activity intracavity is equipped with the bull stick of being connected with front and back end wall rotation, fixed mounting has the gyro wheel on the bull stick, second activity chamber lower extreme is equipped with spacing chamber, spacing intracavity is equipped with connecting device, dead lever upper end fixed mounting has the connecting rod, the connecting rod upper end stretches into trapezoidal fly leaf that both sides were equipped with the inclined plane around the spacing chamber fixedly connected with.

Preferably, the restoring device comprises a second transmission cavity arranged in the fixed block, the left side and the right side of the second transmission cavity are symmetrically provided with a second movable cavity, a friction cavity is arranged on the upper side of the second movable cavity, a first rotating shaft is rotatably arranged on the wall body between the friction cavity and the second transmission cavity, the lower end of the first rotating shaft extends into the second transmission cavity and is fixedly connected with a turbine, the upper end of the first rotating shaft penetrates through the friction cavity and extends out of the fixed block, the first rotating shaft is fixedly connected with a rotating disc at the upper end of the fixed block, the rear end of the turbine is meshed with a worm shaft, the left end and the right end of the worm shaft extend into the second movable cavity and are connected with the inner wall of the second movable cavity in a rotating way, the worm shaft is fixedly connected with a rolling disc in the second movable cavity, and the upper end of the chain extends into the second movable cavity and is fixedly connected with the rolling disc.

Preferably, second activity chamber upside is equipped with the third activity chamber, be equipped with the spacing groove on the third activity chamber roof, spacing groove sliding fit has the second screw rod, spacing inslot fixed mounting have with the second spring that the second screw rod is connected, the second screw rod in third activity intracavity threaded connection has the gear, gear revolve connect in end wall about the third activity chamber, the second screw rod stretches into second activity chamber fixedly connected with top dish, gear engagement has the rack, rack one end stretches into friction chamber fixedly connected with clutch blocks.

Preferably, controlling means including rotate connect in the first screw rod of first activity chamber upper end wall, first screw rod upper end runs through first activity chamber upper end wall, first screw rod upper end in rotate on the mount and be connected with the pressure disk, fixed mounting on the first activity chamber diapire have with the first spring that first screw rod is connected, first screw rod in first activity intracavity threaded connection has first gear, runner normal running fit end wall about the first activity chamber, fixedly connected with connecting band on the runner, first activity chamber be equipped with the through-hole that the second activity chamber is linked together, the connecting band passes the through-hole is walked around the gyro wheel stretches into spacing chamber.

Preferably, connecting device include fixed connection in the fly leaf of connecting band lower extreme, the symmetry is equipped with the recess on the end wall around the spacing chamber, sliding fit has second trapezoidal piece in the recess, fixed mounting have in the recess with the fourth spring that second trapezoidal piece is connected, second trapezoidal piece lower extreme fixedly connected with second stopper, spacing chamber in the recess downside is equipped with the draw-in groove, sliding fit has the movable block in the draw-in groove, draw-in groove internal fixation be equipped with the third spring that the movable block is connected.

Preferably, the right side be equipped with the fourth activity chamber in the stopper, end wall sliding fit has the second kicking block that has inclined plane around the fourth activity chamber, second kicking block right-hand member sliding fit has the second clutch blocks, be equipped with the second recess in the fourth activity chamber left end wall, fixed mounting has in the second recess with the fifth spring that the second clutch blocks is connected, second clutch blocks sliding fit the fourth activity chamber right side wall and stretch into trapezoidal spout.

The beneficial effects are that: this device simple structure, convenient operation through the threaded connection control of screw rod and gear the rotation of gear can pack up when not working and reduce occupation space, only needs to press the pressure disk, the device is automatic to be expanded, through the work of stopper reduces dead lever whereabouts speed, protection device ability normal work, accessible after the work the chain is retrieved and is reused.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of an escape ramp according to the present invention;

FIG. 2 is a right side sectional view of the second fixing rod 12 of FIG. 1;

FIG. 3 is a rear view of the holder of FIG. 1;

FIG. 4 is a right side sectional view of the spacing cavity of FIG. 1;

fig. 5 is a top view of the stop block in fig. 1.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an escape movable ladder, which comprises a fixed frame 8 fixed on a wall body, wherein second fixed rods 12 are symmetrically and fixedly arranged below the left end and the right end of the fixed frame 8, a trapezoidal sliding groove 13 is arranged in each second fixed rod 12, a sliding groove 53 communicated with the trapezoidal sliding groove 13 is arranged on the inner wall of each second fixed rod 12, a connecting rod 10 is in sliding fit with each second fixed rod 12, the right end of each connecting rod 10 is fixedly connected with a second connecting rod 47, each second connecting rod 47 is in sliding fit with the corresponding sliding groove 53, the right end of each second connecting rod 47 extends into the corresponding trapezoidal sliding groove 13 and is fixedly connected with a limiting friction block 9, a plurality of groups of pedal rods 11 are fixedly arranged between the left connecting rod 10 and the right connecting rod 10, a chain 29 is fixedly connected to the first pedal rod 11 at the upper end, a first movable cavity 1 is arranged in the fixed frame, the utility model discloses a safe and convenient fixing device for a vehicle, including mount 8, be equipped with reply device in the

fixed block

22, 1 left and right sides symmetry in first activity chamber is equipped with second activity chamber 14, be equipped with in the second activity chamber 14 with the front and back end wall rotate the bull stick 38 of being connected, fixed mounting has gyro wheel 45 on the bull stick 38, second activity chamber 14 lower extreme is equipped with spacing chamber 46, be equipped with connecting device in the spacing chamber 46, dead lever 10 upper end fixed mounting has connecting rod 10, the upper end of connecting rod 10 stretches into both sides are equipped with the trapezoidal fly leaf 40 on inclined plane around the spacing chamber 46 fixedly connected with.

Advantageously, said return means comprise a second transmission chamber 30 provided in said fixed block 22, the left side and the right side of the second transmission cavity 30 are symmetrically provided with a second movable cavity 14, the upper side of the second movable cavity 14 is provided with a friction cavity 27, the wall between the friction chamber 27 and the second transmission chamber 30 is rotatably mounted with a first rotation shaft 26, the lower end of the first rotating shaft 26 extends into the second transmission cavity 30 and is fixedly connected with a turbine 31, the upper end of the first rotating shaft 26 passes through the friction cavity 27 and extends out of the fixed block 22, the upper end of the fixed block 22 of the first rotating shaft 26 is fixedly connected with a rotating disc 25, a worm shaft 32 is meshed at the rear end of the turbine 31, the left end and the right end of the worm shaft 32 extend into the second movable cavity 14 to be rotatably connected with the inner wall of the second movable cavity 14, the worm shaft 32 is fixedly connected with a rolling disc 28 in the second movable cavity 14, and the upper end of the chain 29 extends into the second movable cavity 14 and is fixedly connected with the rolling disc 28.

Beneficially, second activity chamber 14 upside is equipped with third activity chamber 21, be equipped with spacing groove 20 on the third activity chamber 21 roof, spacing groove 20 sliding fit has second screw rod 18, spacing inslot 20 fixed mounting have with the second spring 19 that second screw rod 18 is connected, second screw rod 18 in third activity chamber 21 internal thread connection has gear 17, gear 17 rotate connect in third activity chamber 21 upper and lower end wall, second screw rod 18 stretches into second activity chamber 14 fixedly connected with top disc 15, gear 17 meshes has rack 16, rack 16 one end stretches into friction chamber 27 fixedly connected with clutch blocks 20.

Beneficially, the control device comprises a first screw rod 3 rotatably connected to the upper end wall of the first movable cavity 1, the upper end of the first screw rod 3 penetrates through the upper end wall of the first movable cavity 1, the upper end of the first screw rod 3 is rotatably connected with a pressure plate 4 on the fixed frame 8, a first spring 5 connected with the first screw rod 3 is fixedly mounted on the bottom wall of the first movable cavity 1, the first screw rod 3 is connected with a first gear 2 in the first movable cavity 1 in a threaded manner, the rotating wheel 2 is rotatably matched with the upper end wall and the lower end wall of the first movable cavity 1, a connecting belt 6 is fixedly connected onto the rotating wheel 2, the first movable cavity 1 is provided with a through hole 7 communicated with the second movable cavity 14, and the connecting belt 6 passes through the through hole 7 and bypasses the roller 45 to stretch into the limiting cavity 46.

Beneficially, the connecting device includes a movable plate 44 fixedly connected to the lower end of the connecting band 6, grooves 42 are symmetrically arranged on the front and rear end walls of the limiting cavity 46, a second trapezoidal block 43 is in sliding fit in the groove 42, a fourth spring 41 connected with the second trapezoidal block 43 is fixedly installed in the groove 42, a second limiting block 33 is fixedly connected to the lower end of the second trapezoidal block 43, a clamping groove 35 is arranged on the lower side of the groove 42 of the limiting cavity 46, a movable block 36 is in sliding fit in the clamping groove 35, and a third spring 34 connected with the movable block 36 is fixedly installed in the clamping groove 35.

Beneficially, a fourth movable cavity 51 is arranged in the right side limiting block 9, a second ejector block 52 with an inclined surface is arranged in the front end wall and the rear end wall of the fourth movable cavity 51 in a sliding fit mode, a second friction block 50 is arranged at the right end of the second ejector block 52 in a sliding fit mode, a second groove 48 is arranged in the left end wall of the fourth movable cavity 51, a fifth spring 59 connected with the second friction block 50 is fixedly arranged in the second groove 48, and the second friction block 50 is arranged in the right end wall of the fourth movable cavity 51 in a sliding fit mode and extends into the trapezoidal sliding groove 13.

In an initial state, the trapezoidal movable plate 40 is located at the upper end of the second stopper 33, and the first spring 5, the second spring 19, the third spring 34, the fourth spring 41 and the fifth spring 49 are located in a normal state;

when the automatic sliding device starts to work, the pressure plate 4 is pressed, the pressure plate 4 drives the first screw rod 1 to move downwards, the first screw rod 1 is driven to rotate the rotating wheel 2, the rotating wheel 2 drives the connecting belt 6 to move, the connecting belt 6 drives the movable plate 44 to move upwards, the second trapezoidal block 43 moves, the trapezoidal movable plate 40 is separated from the second limiting block 33, the fixing rod 10 moves downwards under the action of gravity, the fixing rod 10 drives the limiting block 9 to move downwards through the second connecting rod 47, the second ejector block 52 is in contact with the trapezoidal sliding groove 13, the second ejector block 52 moves inwards to drive the second friction block 50 to move, the second friction block 50 is in contact with the trapezoidal sliding groove 13, and the sliding speed of the fixing rod 10 is limited through friction force.

After the work, rotate carousel 25, carousel 25 passes through first pivot 26 drives turbine 31 rotates, turbine 31 passes through worm shaft 32 drives rolling disc 28 rotates, rolling disc 28 passes through chain 29 drives pedal lever 11 moves up, chain 29 winds on rolling disc 28, chain 28 drives top dish 15 rebound, top dish 15 drives second screw rod 18 removes, second screw rod 18 drives gear 17 rotates, gear 17 drives rack 16 rotates, rack 16 drives friction block 24 removes and is close to first pivot, the restriction first pivot 26 rotates, dead lever 10 drives trapezoidal fly leaf 40 gets back to spacing chamber 46 again.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. An escape movable ladder comprises a fixed frame fixed on a wall body, wherein second fixed rods are symmetrically and fixedly arranged below the left end and the right end of the fixed frame, trapezoidal sliding grooves are formed in the second fixed rods, sliding grooves communicated with the trapezoidal sliding grooves are formed in the inner walls of the second fixed rods, connecting rods are matched with the second fixed rods in a sliding mode, second connecting rods are fixedly connected with second connecting rods at the right ends of the connecting rods, the sliding grooves are matched with the sliding grooves in a sliding mode, the right ends of the second connecting rods extend into the trapezoidal sliding grooves and are fixedly connected with limiting friction blocks, a plurality of groups of pedal rods are fixedly arranged between the left connecting rods and the right connecting rods, a chain is fixedly connected to the pedal rods at the first upper end, a first movable cavity is formed in the fixed frame, a control device is arranged in the first movable cavity, a fixed block, first activity chamber left and right sides symmetry is equipped with second activity chamber, second activity intracavity is equipped with the bull stick of being connected with front and back end wall rotation, fixed mounting has the gyro wheel on the bull stick, second activity chamber lower extreme is equipped with spacing chamber, spacing intracavity is equipped with connecting device, dead lever upper end fixed mounting has the connecting rod, the connecting rod upper end stretches into trapezoidal fly leaf that both sides were equipped with the inclined plane around the spacing chamber fixedly connected with.

2. The escape ramp as set forth in claim 1, wherein: reply the device including locating second transmission chamber in the fixed block, second transmission chamber left and right sides symmetry is equipped with second activity chamber, second activity chamber upside is equipped with the friction chamber, the friction chamber with wall body between the second transmission chamber rotates installs first pivot, first pivot lower extreme stretches into second transmission intracavity fixedly connected with turbine, first pivot upper end is passed the friction chamber stretches out the fixed block, first pivot in fixed block upper end fixedly connected with carousel, the meshing of turbine rear end has the worm axle, both ends stretch into about the worm axle the second activity intracavity is rotated and is connected second activity intracavity wall, the worm axle in second activity intracavity fixedly connected with rolls the dish, the lock chain upper end stretches into second activity intracavity fixed connection in roll the dish.

3. The escape ramp as set forth in claim 2, wherein: the second activity chamber upside is equipped with the third activity chamber, be equipped with the spacing groove on the third activity chamber roof, spacing groove sliding fit has the second screw rod, spacing inslot fixed mounting have with the second spring that the second screw rod is connected, the second screw rod in the third activity intracavity threaded connection has the gear, gear revolve connect in end wall about the third activity chamber, the second screw rod stretches into second activity chamber fixedly connected with takes over a business, gear engagement has the rack, rack one end stretches into friction chamber fixedly connected with clutch blocks.

4. The escape ramp as set forth in claim 1, wherein: controlling means including rotate connect in the first screw rod of first activity chamber upper end wall, first screw rod upper end runs through first activity chamber upper end wall, first screw rod upper end in rotate on the mount and be connected with the pressure disk, fixed mounting on the first activity chamber diapire have with the first spring that first screw rod is connected, first screw rod in first activity intracavity threaded connection has first gear, runner normal running fit end wall about the first activity chamber, fixedly connected with connecting band on the runner, first activity chamber be equipped with the through-hole that the second activity chamber is linked together, the connecting band passes the through-hole is walked around the gyro wheel stretches into spacing chamber.

5. The escape ramp as set forth in claim 1, wherein: the connecting device comprises a movable plate fixedly connected to the lower end of the connecting band, grooves are symmetrically formed in the front end wall and the rear end wall of the limiting cavity, a second trapezoidal block is arranged in each groove in a sliding fit mode, a fourth spring connected with the second trapezoidal block is fixedly mounted in each groove, a second limiting block is fixedly connected to the lower end of the second trapezoidal block, a clamping groove is formed in the lower side of each groove in the limiting cavity, a movable block is arranged in each clamping groove in a sliding fit mode, and a third spring connected with the movable block is fixedly mounted in each clamping groove.

6. The escape ramp as set forth in claim 1, wherein: the right side be equipped with fourth activity chamber in the stopper, end wall sliding fit has the second kicking block that has inclined plane ground around the fourth activity chamber, second kicking block right-hand member sliding fit has the second clutch blocks, be equipped with the second recess in the fourth activity chamber left end wall, fixed mounting have in the second recess with the fifth spring that the second clutch blocks are connected, second clutch blocks sliding fit the fourth activity chamber right end wall is stretched into trapezoidal spout.