CN213651556U

CN213651556U - Safety handrail for vertical ladder

Info

Publication number: CN213651556U
Application number: CN202022536710.XU
Authority: CN
Inventors: 夏崇峻
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-09
Anticipated expiration: 2030-11-05

Abstract

The utility model belongs to the technical field of elevator equipment, especially, be a safety handle for vertical ladder, to current vertical ladder when installing safety handle, the loaded down with trivial details that the operation is very, be not convenient for to safety handle's installation, and can't change the angle of handrail, lead to the lower problem of practicality, the scheme is put forward now, and it includes the vertical ladder body, the top rear side fixed mounting of vertical ladder body has two mounts, and the connecting hole has all been seted up at the top of two mounts, and equal activity joint has the supporting leg in two connecting holes, and the round hole has all been seted up to one side bottom that two supporting legs are close to each other, and one side fixed mounting that two mounts are close to each other has same safety cover. The utility model has the advantages of reasonable design, through the cooperation of kelly, rack and spring, can make things convenient for the installation and the dismantlement of handrail, through the cooperation of axis of rotation, lead screw and nut, can change the angle of handrail, the practicality is stronger, and the reliability is high.

Description

Safety handrail for vertical ladder

Technical Field

The utility model relates to an elevator equipment technical field especially relates to a safety handle for vertical ladder.

Background

A vertical elevator (also known as a vertical elevator and a lifting elevator) is one of elevators, and is a vertical elevator powered by a motor and provided with a box-shaped nacelle for carrying people or goods in a multi-story building. It has a cage which runs between at least two rows of vertical or inclined rigid guide rails with an angle of inclination of less than 15 deg.. The size and the structural form of the car are convenient for passengers to access or load and unload goods. The straight ladder is the earliest elevator and is one of the most common elevator types in life, and in order to protect the safety of passengers, safety handrails are generally installed in the straight ladder.

However, when the safety handrail is installed on the existing straight ladder, the operation is very complicated, the safety handrail is not convenient to install, the angle of the handrail cannot be changed, and the practicability is low, so that the safety handrail for the straight ladder is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current vertical ladder when installing safety handle, the operation is loaded down with trivial details very, is not convenient for to safety handle's installation, and can't change the angle of handrail, leads to the lower shortcoming of practicality, and the safety handle for the vertical ladder that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a safety handrail for a straight ladder comprises a straight ladder body, wherein two fixing frames are fixedly arranged at the rear side of the top of the straight ladder body, connecting holes are formed in the tops of the two fixing frames, supporting legs are movably clamped in the two connecting holes, a round hole is formed in the bottom of one side, close to each other, of each supporting leg, a same protective cover is fixedly arranged at one side, close to each other, of the two fixing frames, a worm is rotatably arranged on the inner wall of the top of the protective cover, a vertical plate is fixedly arranged on the inner wall of the top of the protective cover, a worm wheel is rotatably arranged at the front side of the vertical plate, the worm is meshed with the worm wheel, a gear is fixedly arranged at the front side of the worm wheel, sliding grooves are formed in one side, close to each other, of the two fixing frames, clamping rods are respectively movably clamped in the corresponding round, two sliding trays slide respectively and cup joint in the spout that corresponds, the equal fixed mounting in both sides of safety cover has the one end of spring, and the other end difference fixed mounting of two springs is in one side of the sliding tray that corresponds, and two springs cup joint respectively in the outside of the kelly that corresponds, and the equal fixed mounting in one end that two kellies are close to each other has the rack, the gear meshes with two racks mutually, and the top of two supporting legs is all seted up flutedly, all rotates on the inner wall of two recesses and installs the axis of rotation, and the outside of two axis of rotation is fixed and has been cup jointed same handrail, equal fixed mounting has the lead screw on the both sides inner wall of handrail, and the one end of two lead screws all.

Preferably, the arc wall has all been seted up to one side that two supporting legs are close to each other, and the nut has all been cup jointed to the outside and the screw thread of the arc wall that corresponds to the one end of two lead screws, and one side of two nuts is the activity respectively and is contradicted in one side of the supporting leg that corresponds, makes things convenient for the regulation and the fixing of handrail.

Preferably, the same transverse plate is fixedly installed at one side, close to each other, of the two supporting legs, and the rubber pad is fixedly sleeved at the outer side of the handrail, so that the handrail is convenient to stabilize and a passenger can grasp the handrail.

Preferably, the top of worm extends to the top of safety cover, and the top fixed mounting of worm has the hand wheel, makes things convenient for manual rotation hand wheel.

Preferably, the guide plates are sleeved on the outer sides of the two racks in a sliding mode, the tops of the two guide plates are fixedly mounted on the inner wall of the top of the protection cover, the two racks are conveniently guided, and the phenomenon that the racks incline is avoided.

Preferably, the fixed slot has all been seted up on the one side inner wall that two connecting holes kept away from each other, and two kellies activity joint respectively makes things convenient for two kellies to be difficult for breaking away from the round hole that corresponds in the fixed slot that corresponds.

The utility model discloses a safety handle for straight ladder, fix two mounts on the bottom rear side inner wall of straight ladder body earlier, then rotate the hand wheel, the hand wheel has driven the rotation of worm, through the meshing of worm and worm wheel, has driven the rotation of worm wheel, the worm wheel has driven the rotation of gear, through the meshing of gear and two racks, driven two racks and moved in opposite directions, under the direction of two sliding discs, thereby stimulate two kellies and move in opposite directions, when two kellies retract into corresponding spouts, joint two supporting legs in corresponding connecting hole respectively, the hand wheel is loosened to the people, under the effect that two springs do the motion that resets, two kellies joint in corresponding round hole and fixed slot, thereby two supporting legs are fixed;

in the utility model, when the angle of the handrail is required to be adjusted, the handrail is manually pulled, the handrail rotates around the axis of the rotating shaft, the lead screw slides in the arc-shaped groove, and when the angle is proper, the nuts are screwed down to firmly press the two nuts against one side of the corresponding supporting leg, so that the handrail can be fixed, the angle of the handrail is adjusted when the handrail is convenient to install, and the practicability is higher;

the utility model has the advantages of reasonable design, through the cooperation of kelly, rack and spring, can make things convenient for the installation and the dismantlement of handrail, through the cooperation of axis of rotation, lead screw and nut, can change the angle of handrail, the practicality is stronger, and the reliability is high.

Drawings

Fig. 1 is a schematic structural view of a safety handrail for a vertical ladder according to the present invention;

fig. 2 is a schematic structural view of a portion a of a safety handrail for a vertical ladder according to the present invention;

fig. 3 is a schematic structural view of a portion B of a safety handrail for a vertical ladder according to the present invention;

fig. 4 is a schematic structural view of a portion C of a safety handrail for a vertical ladder according to the present invention;

fig. 5 is a side view of the supporting leg, the lead screw, the nut and the arc-shaped groove of the safety handle for the straight ladder of the utility model.

In the figure: 1. a straight ladder body; 2. a fixed mount; 3. a protective cover; 4. supporting legs; 5. a transverse plate; 6. a handrail; 7. a rubber pad; 8. a rotating shaft; 9. a screw rod; 10. a nut; 11. an arc-shaped slot; 12. a vertical plate; 13. a worm gear; 14. a worm; 15. a hand wheel; 16. a gear; 17. a rack; 18. a clamping rod; 19. a sliding disk; 20. a spring; 21. fixing grooves; 22. a chute; 23. a guide plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a safety handle for a straight ladder comprises a straight ladder body 1, two fixing frames 2 are fixedly installed on the rear side of the top of the straight ladder body 1, connecting holes are formed in the tops of the two fixing frames 2, supporting legs 4 are movably clamped in the two connecting holes, circular holes are formed in the bottoms of the sides, close to each other, of the two supporting legs 4, a same protective cover 3 is fixedly installed on the side, close to each other, of the two fixing frames 2, a worm 14 is rotatably installed on the inner wall of the top of the protective cover 3, a vertical plate 12 is fixedly installed on the inner wall of the top of the protective cover 3, a worm wheel 13 is rotatably installed on the front side of the vertical plate 12, the worm 14 is meshed with the worm wheel 13, a gear 16 is fixedly installed on the front side of the worm wheel 13, sliding grooves 22 are formed in the sides, close to each other, clamping rods 18, the outside of two kellies 18 is all fixed the sliding tray 19 that has cup jointed, two sliding tray 19 slide respectively and cup joint in the spout 22 that corresponds, the equal fixed mounting in both sides of safety cover 3 has the one end of spring 20, the other end of two springs 20 is one side of sliding tray 19 that corresponds respectively fixed mounting, two springs 20 cup joint respectively in the outside of the kellies 18 that corresponds, the equal fixed mounting in one end that two kellies 18 are close to each other has rack 17, gear 16 meshes with two rack 17 mutually, the top of two supporting legs 4 is all seted up flutedly, all rotate on the inner wall of two recesses and install axis of rotation 8, same handrail 6 has been cup jointed in the outside of two axis of rotation 8, equal fixed mounting has lead screw 9 on the both sides inner wall of handrail 6, the one end of two lead screws 9 all extends to the outside of supporting leg.

The utility model discloses in, arc wall 11 has all been seted up to one side that two supporting legs 4 are close to each other, and the nut 10 has all been cup jointed to the outside and the screw thread of the arc wall 11 that corresponds to two lead screws 9's one end, and one side of two nuts 10 is the activity respectively contradicts in one side of the supporting leg 4 that corresponds, makes things convenient for the regulation and the fixing of handrail 6.

In the utility model, one side of the two supporting legs 4 close to each other is fixedly provided with the same transverse plate 5, and the outer side of the handrail 6 is fixedly sleeved with the rubber pad 7, so that the handrail 6 is convenient to be stabilized and the passenger can grasp the handrail 6.

The utility model discloses in, the top of worm 14 extends to the top of safety cover 3, and the top fixed mounting of worm 14 has hand wheel 15, makes things convenient for manual rotation hand wheel 15.

The utility model discloses in, two racks 17's the outside is all slided and has been cup jointed deflector 23, and the equal fixed mounting in top of two deflectors 23 is on the top inner wall of safety cover 3, and the convenience leads two racks 17, avoids taking place the slope.

The utility model discloses in, all seted up fixed slot 21 on the one side inner wall that two connecting holes were kept away from each other, two kellies 18 activity joints respectively in the fixed slot 21 that corresponds, make things convenient for two kellies 18 to be difficult for breaking away from the round hole that corresponds.

In the utility model, when mounting, firstly two fixing frames 2 are fixed on the inner wall of the rear side of the bottom of the straight ladder body 1, then the hand wheel 15 is rotated, the hand wheel 15 drives the worm 14 to rotate, the worm wheel 13 is driven to rotate through the meshing of the worm 14 and the worm wheel 13, the worm wheel 13 drives the gear 16 to rotate, the two racks 17 are driven to move oppositely through the meshing of the gear 16 and the two racks 17, under the guiding of the two sliding discs 19, the two clamping rods 18 are pulled to move oppositely, when the two clamping rods 18 retract into the corresponding sliding grooves 22, the two supporting legs 4 are respectively clamped in the corresponding connecting holes, the hand loosens the hand wheel 15, under the action of the reset motion of the two springs 20, the two clamping rods 18 are clamped in the corresponding round holes and the corresponding fixing grooves 21, so as to fix the two supporting legs 4, when the angle of the handrail 6 is required to be adjusted, the handrail 6 is manually pulled, the handrail 6 rotates with the axle center of axis of rotation 8, and lead screw 9 slides in arc wall 11, and when the angle was suitable, screwed up nut 10, made two nuts 10 firmly contradict in one side of the supporting leg 4 that corresponds to can fix the handrail, adjust the angle of handrail during easy to assemble, the practicality is stronger.

Claims

1. The safety handrail for the straight ladder comprises a straight ladder body (1) and is characterized in that two fixing frames (2) are fixedly mounted on the rear side of the top of the straight ladder body (1), connecting holes are formed in the tops of the two fixing frames (2), supporting legs (4) are movably clamped in the two connecting holes, a round hole is formed in the bottom of one side, close to each other, of each supporting leg (4), one side, close to each other, of the two fixing frames (2) is fixedly provided with the same protective cover (3), a worm (14) is rotatably mounted on the inner wall of the top of the protective cover (3), a vertical plate (12) is fixedly mounted on the inner wall of the top of the protective cover (3), a worm wheel (13) is rotatably mounted on the front side of the vertical plate (12), the worm (14) is meshed with the worm wheel (13), and a gear (16) is fixedly mounted, one side of each of the two fixing frames (2) close to each other is provided with a sliding groove (22), clamping rods (18) are arranged in the two sliding grooves (22), the two clamping rods (18) are movably clamped in the corresponding round holes respectively, the outer sides of the two clamping rods (18) are fixedly sleeved with sliding discs (19), the two sliding discs (19) are slidably sleeved in the corresponding sliding grooves (22) respectively, one ends of springs (20) are fixedly arranged on two sides of the protective cover (3), the other ends of the two springs (20) are fixedly arranged on one sides of the corresponding sliding discs (19) respectively, the two springs (20) are sleeved on the outer sides of the corresponding clamping rods (18) respectively, racks (17) are fixedly arranged on one ends of the two clamping rods (18) close to each other, the gears (16) are meshed with the two racks (17), the tops of the two supporting legs (4) are provided with grooves, and rotating shafts (8) are rotatably arranged on the inner walls of the two grooves, the outside of two axis of rotation (8) is fixed to be cup jointed same handrail (6), equal fixed mounting has lead screw (9) on the both sides inner wall of handrail (6), and the one end of two lead screws (9) all extends to the outside of supporting leg (4).

2. The safety handrail for the vertical ladder as claimed in claim 1, wherein the two support legs (4) are provided with an arc-shaped groove (11) at one side close to each other, one end of each screw rod (9) extends to the outer side of the corresponding arc-shaped groove (11) and is sleeved with a nut (10) in a threaded manner, and one side of each nut (10) is movably abutted against one side of the corresponding support leg (4).

3. The safety handrail for the vertical ladder as claimed in claim 1, wherein one side of the two supporting legs (4) close to each other is fixedly provided with a transverse plate (5), and the outer side of the handrail (6) is fixedly sleeved with a rubber pad (7).

4. The safety handle for the straight ladder as claimed in claim 1, wherein the top end of the worm (14) extends to the upper part of the protective cover (3), and the top end of the worm (14) is fixedly provided with a hand wheel (15).

5. The safety handle for the vertical ladder as claimed in claim 1, wherein the outer sides of the two racks (17) are respectively sleeved with a guide plate (23) in a sliding manner, and the top parts of the two guide plates (23) are respectively fixedly arranged on the inner wall of the top part of the protective cover (3).

6. The safety handle for the vertical ladder as claimed in claim 1, wherein the inner wall of one side of the two connecting holes away from each other is provided with a fixing groove (21), and the two clamping rods (18) are movably clamped in the corresponding fixing grooves (21) respectively.