CN210763766U

CN210763766U - Telescopic elevator cab guardrail

Info

Publication number: CN210763766U
Application number: CN201921663627.XU
Authority: CN
Inventors: 俞山杰; 徐怡婷; 董立晴; 施小芳; 盛亮亮; 吴福康
Original assignee: ZHEJIANG UNITED ELEVATOR CO Ltd
Current assignee: ZHEJIANG UNITED ELEVATOR CO Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-16
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a telescopic elevator car top guardrail, including a plurality of big stands (1), every big stand (1) all is connected with lower railing (3) through connecting piece (2), is equipped with through-hole (11) that supply connecting piece (2) to pass through on big stand (1), and sliding connection has little stand (4) in big stand (1), and every little stand (4) all is connected with last railing (5), is equipped with spout (41) that supply connecting piece (2) to pass through on little stand (4); connecting piece (2) are equipped with cutting ferrule, sliding sleeve and spring (26) of being connected with big stand (1) including screw rod (21) of break-over big stand (1), little stand (4) and railing (3) down on screw rod (21), cutting ferrule and spout (41) cooperation joint, and the diameter of sliding sleeve is less than the diameter of spout (41). The utility model has the characteristics of stable in structure, easy operation, adjustment are quick.

Description

Telescopic elevator cab guardrail

Technical Field

The utility model relates to an elevator sedan-chair top guardrail, especially a telescopic elevator sedan-chair top guardrail.

Background

In the elevator industry, in order to protect the safety of elevator maintenance personnel, a protective guard needs to be arranged on the top of an elevator car, and because the height of the elevator is different from the top layer space of a hoistway, the safety space and the safety distance are also different, the height of the protective guard on the top of the elevator car needs to meet different requirements according to different conditions. In order to meet the actual requirements, an elevator car top guardrail with a telescopic function has appeared in the prior art, for example, a chinese utility model patent with application number cn201220527784.x discloses a telescopic car top guardrail with a locking device, specifically discloses a telescopic car top guardrail body which comprises a guardrail body arranged at the upper part of an elevator car top, and an angle iron handrail at the upper part of the guardrail body is connected with a telescopic upright post; the telescopic upright post can be telescopically inserted into the lower sleeve body. This patent center pillar is fixed through the fixed block of taking the spring and the lower part cover body, realizes the flexible of stand through pressing the fixed block, but this kind of connected mode, stand and lower part cover body coupling are not stable enough, and the stand appears rocking easily, and when needs are to a plurality of stands the removal of stretching out and drawing back, need one to press, and troublesome poeration takes time.

Therefore, the existing elevator car top guardrail has the problems of unstable structure, troublesome operation and time consumption.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a telescopic elevator cab guardrail. The utility model has the characteristics of stable in structure, easy operation, adjustment are quick.

The technical scheme of the utility model: a telescopic elevator car top guardrail comprises a plurality of large stand columns, wherein each large stand column is connected with a lower railing through a connecting piece, the large stand columns are provided with through holes for the connecting pieces to pass through, small stand columns are connected in the large stand columns in a sliding mode, each small stand column is connected with the upper railing, and the small stand columns are provided with sliding grooves for the connecting pieces to pass through; the connecting piece includes the screw rod of the big stand of break-over, little stand and railing down, is equipped with cutting ferrule, sliding sleeve and the spring of being connected with big stand on the screw rod, cutting ferrule and spout cooperation joint, and the diameter of sliding sleeve is less than the diameter of spout.

In the telescopic elevator car top guardrail, the clamping sleeve is clamped in the sliding groove in a fixed state; under the mobile state, the cutting ferrule breaks away from the spout, and the sliding sleeve is located the spout.

In the telescopic elevator car top guardrail, be equipped with first nut, second nut, third nut and fourth nut in proper order along screw rod length direction on the screw rod, the cutting ferrule includes first cutting ferrule and second cutting ferrule, the sliding sleeve includes first sliding sleeve and second sliding sleeve, first cutting ferrule and first sliding sleeve are located between first nut and the second nut, be equipped with first separation blade between first nut and the first cutting ferrule, second cutting ferrule and second sliding sleeve are located between third nut and the fourth nut, be equipped with the second separation blade between second sliding sleeve and the fourth nut, the one end and the second separation blade of spring are connected, the other end and the big stand of spring are connected.

In the telescopic elevator car top guardrail, the diameters of the first separation blade and the second separation blade are larger than the diameter of the through hole, and the lower railing is fixed between the first nut and the first separation blade.

In the telescopic elevator car top guardrail, the clamping sleeve is triangular, the bottom edge of the clamping sleeve is provided with a first arc-shaped part protruding upwards, and the through hole is matched with the clamping sleeve.

In the telescopic elevator car top guardrail, the upper end and the lower end of the sliding groove are triangular, and the upper end of the sliding groove is provided with a second arc-shaped part protruding upwards.

In the telescopic elevator car top guardrail, the elastic layer is arranged outside the clamping sleeve.

In the telescopic elevator car top guardrail, the sliding sleeve is cylindrical.

In the telescopic elevator car top guardrail, the large upright post is provided with a clamping groove matched with the spring.

Compared with the prior art, the utility model has the advantages that the large upright post, the small upright post and the lower railing are connected through the connecting piece, the connecting piece can slide left and right between the large upright post and the small upright post, the connecting piece comprises the clamping sleeve for fixing the small upright post and the sliding sleeve for moving the small upright post, the clamping sleeve is clamped at the upper end of the sliding groove or the lower end of the sliding groove in a fixed state, and meanwhile, the spring is butted between the large upright post and the connecting piece, so that the connection of the guardrail is stable and the guardrail is not; when the movable guardrail needs to be moved, the lower guardrail is pulled outwards to compress the spring, the clamping sleeve is separated from the chute, the sliding sleeve enters the chute, each small stand column can smoothly move up and down, when the small stand column moves to the uppermost end or the lowermost end, the lower guardrail is pushed inwards or no longer pulled, the lower guardrail, the clamping sleeve and the sliding sleeve are restored to the original position under the restoring action of the spring, and the clamping sleeve is clamped with the end part of the chute through the through hole again, so that the guardrail is fixed, the operation is simple, and the adjustment is quick and convenient; the small upright post limits the moving position through the sliding groove, so that the connecting piece and the small upright post are accurately connected and positioned, and the two states of stretching and compressing the guardrail are easily realized; the guardrail overall structure is simple, can assemble into different patterns with other guardrails, installs on different elevators, and the commonality is wide.

Therefore, the utility model has the characteristics of stable in structure, easy operation, adjustment are quick.

Drawings

Fig. 1 is a schematic structural view of the present invention in an extended state;

fig. 2 is a schematic structural view in a compressed state of the present invention;

FIG. 3 is a sectional view showing the connection of a large column and a small column;

FIG. 4 is a schematic structural view of a large column and a small column in a fixed state;

FIG. 5 is a schematic structural diagram of a small column in a moving state;

fig. 6 is a schematic structural view of a second ferrule;

FIG. 7 is a schematic structural view of a large column;

fig. 8 is a schematic structural view of a small column.

The labels in the figures are: 1. a large upright post; 11. a through hole; 12. a card slot; 2. a connecting member; 21. a screw; 22. a first ferrule; 23. a second ferrule; 231. a first arcuate portion; 232. an elastic layer; 24. a first sliding sleeve; 25. a second sliding sleeve; 26. a spring; 3. a lower railing; 4. a small upright post; 41. a chute; 42. a second arcuate portion; 5. an upper railing; 61. a first nut; 62. a second nut; 63. a third nut; 64. a fourth nut; 65. a first baffle plate; 66. a second baffle plate.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given.

As shown in fig. 1-3, a telescopic elevator car top guardrail comprises a plurality of large upright posts 1, wherein each large upright post 1 is connected with a lower railing 3 through a connecting piece 2, the large upright posts 1 are provided with through holes 11 for the connecting pieces 2 to pass through, the large upright posts 1 are connected with small upright posts 4 in a sliding manner, each small upright post 4 is connected with an upper railing 5, and the small upright posts 4 are provided with sliding chutes 41 for the connecting pieces 2 to pass through; the connecting piece 2 comprises a screw rod 21 penetrating through the large upright post 1, the small upright post 4 and the lower railing 3, a clamping sleeve, a sliding sleeve and a spring 26 connected with the large upright post 1 are arranged on the screw rod 21, the clamping sleeve is clamped with the sliding groove 41 in a matched mode, and the diameter of the sliding sleeve is smaller than that of the sliding groove 41.

As shown in fig. 4, in a fixed state, the ferrule is clamped in the chute 41; as shown in fig. 5, in the moving state, the ferrule is separated from the sliding groove 41, and the sliding sleeve is located in the sliding groove 41.

The screw 21 is sequentially provided with a first nut 61, a second nut 62, a third nut 63 and a fourth nut 64 along the length direction of the screw 21, the cutting sleeve comprises a first cutting sleeve 22 and a second cutting sleeve 23, the sliding sleeve comprises a first sliding sleeve 24 and a second sliding sleeve 25, the first cutting sleeve 22 and the first sliding sleeve 24 are positioned between the first nut 61 and the second nut 62, a first blocking piece 65 is arranged between the first nut 61 and the first cutting sleeve 22, the second cutting sleeve 23 and the second sliding sleeve 25 are positioned between the third nut 63 and the fourth nut 64, a second blocking piece 66 is arranged between the second sliding sleeve 25 and the fourth nut 64, the spring is positioned outside the second sliding sleeve 25, one end of the spring 26 is connected with the second blocking piece 66, and the other end of the spring 26 is connected with the large upright post 1.

The diameters of the first blocking piece 65 and the second blocking piece 66 are larger than the diameter of the through hole 11, and the lower rail 3 is fixed between the first nut 61 and the first blocking piece 65.

As shown in fig. 6 and 7, the ferrule is triangular, a first arc-shaped part 231 protruding upwards is arranged on the bottom edge of the ferrule, and the through hole 11 is matched with the ferrule. The cutting ferrule of triangle-shaped has restricted about from top to bottom and the degree of freedom of rotation, prevents that little stand 4 from rocking in big stand 1, improves installation stability.

As shown in fig. 8, the upper and lower ends of the sliding groove 41 are triangular, and the upper end of the sliding groove 41 is provided with a second arc-shaped portion 42 protruding upwards. The second arcuate portion 42 is designed to match the sliding sleeve.

The outer side of the cutting sleeve is provided with an elastic layer 232. The elastic layer 232 may be rubber or sponge to further reduce rattle and noise.

The sliding sleeve is cylindrical. The sliding sleeve is connected with the small upright post 4 in a sliding manner, so that the movement is smoother.

As shown in fig. 7, the large upright 1 is provided with a slot 12 matched with the spring 26. The clamping groove 12 is used for clamping the spring 26, so that the spring 26 is prevented from moving randomly, and the installation and working stability of the spring 26 are improved.

The working principle is as follows: when the guardrail is installed, the small upright post 4 is installed in the large upright post 1, the screw 21 provided with the first clamping sleeve 22, the second clamping sleeve 23, the first sliding sleeve 24 and the second sliding sleeve 25 penetrates through the through hole 11 and the sliding groove 41, then the lower guardrail 3 is fixed, and the spring 26 is fixed. After the installation, the guardrail is under fixed state, as shown in fig. 4, first cutting ferrule 22 and second cutting ferrule 23 are through the through-hole 11 joint of both sides respectively in the upper end of spout 41 or the lower extreme of spout 41, because the lateral surface of first cutting ferrule 22 and second cutting ferrule 23 all is equipped with elastic layer 232, connect closely, avoid rocking and taking off the groove of first cutting ferrule 22 and second cutting ferrule 23, spring 26 butt is between big stand 1 and second baffle 66 simultaneously, through spring 26's spring action, further stabilize first cutting ferrule 22 and second cutting ferrule 23, avoid first cutting ferrule 22 and second cutting ferrule 23 to take off the groove, improve little stand 4 and big stand 1's installation firmness, improve the stability under the guardrail fixed state.

When the height of the guardrail needs to be adjusted by stretching or compressing the guardrail, as shown in fig. 5, the lower guardrail 3 is pulled outwards, the spring 26 is compressed, the first clamping sleeve 22 and the second clamping sleeve 23 both move outwards to be separated from the sliding groove 41, the first sliding sleeve 24 and the second sliding sleeve 25 enter the sliding groove 41, and the small upright post 4 can move up and down; when little stand 4 rebound to the top, first sliding sleeve 24 and second sliding sleeve 25 are located the lower extreme of spout 41 this moment, little stand 4 can't rebound again, little stand 4 is in the highest position, railing 3 under no longer pulling this moment, under spring 26's answer effect, can cooperate railing 3 down inwards to promote, make first cutting ferrule 22 and second cutting ferrule 23 resume original position, accurate joint is at the lower extreme of spout 41, the restriction is about 4 about and rotatory degree of freedom, guarantee the fixed stability of little stand 4. In the same way, the small upright post 4 can be fixed when moving downwards to the lowest end.

Claims

1. The utility model provides a telescopic elevator cab guardrail which characterized in that: the novel guardrail comprises a plurality of large upright posts (1), wherein each large upright post (1) is connected with a lower guardrail (3) through a connecting piece (2), a through hole (11) for the connecting piece (2) to pass through is formed in each large upright post (1), small upright posts (4) are connected in the large upright posts (1) in a sliding mode, each small upright post (4) is connected with an upper guardrail (5), and a sliding groove (41) for the connecting piece (2) to pass through is formed in each small upright post (4); connecting piece (2) are equipped with cutting ferrule, sliding sleeve and spring (26) of being connected with big stand (1) including screw rod (21) of break-over big stand (1), little stand (4) and railing (3) down on screw rod (21), cutting ferrule and spout (41) cooperation joint, and the diameter of sliding sleeve is less than the diameter of spout (41).

2. The telescopic elevator car top guardrail of claim 1, characterized in that: in a fixed state, the clamping sleeve is clamped in the sliding groove (41); in the moving state, the cutting ferrule breaks away from the sliding groove (41), and the sliding sleeve is positioned in the sliding groove (41).

3. The telescopic elevator car top guardrail of claim 1, characterized in that: a first nut (61), a second nut (62), a third nut (63) and a fourth nut (64) are sequentially arranged on the screw rod (21) along the length direction of the screw rod (21), the cutting ferrule includes first cutting ferrule (22) and second cutting ferrule (23), the sliding sleeve includes first sliding sleeve (24) and second sliding sleeve (25), first cutting ferrule (22) and first sliding sleeve (24) are located between first nut (61) and second nut (62), be equipped with first separation blade (65) between first nut (61) and first cutting ferrule (22), second cutting ferrule (23) and second sliding sleeve (25) are located between third nut (63) and fourth nut (64), be equipped with second separation blade (66) between second sliding sleeve (25) and fourth nut (64), the one end and the second separation blade (66) of spring (26) are connected, the other end and the big stand (1) of spring (26) are connected.

4. The telescopic elevator car top guardrail of claim 3, wherein: the diameters of the first blocking piece (65) and the second blocking piece (66) are larger than the diameter of the through hole (11), and the lower rail (3) is fixed between the first nut (61) and the first blocking piece (65).

5. The telescopic elevator car top guardrail of claim 1, characterized in that: the cutting ferrule is triangle-shaped, and the base of cutting ferrule is equipped with first arc portion (231) protruding upwards, through-hole (11) and cutting ferrule phase-match.

6. The telescopic elevator car top guardrail of claim 1, characterized in that: the upper end and the lower end of the sliding groove (41) are triangular and are clamped with the clamping sleeve in a matched mode, and the upper end of the sliding groove (41) is provided with a second arc-shaped portion (42) protruding upwards.

7. The telescopic elevator car top guardrail of claim 1, characterized in that: an elastic layer (232) is arranged outside the clamping sleeve.

8. The telescopic elevator car top guardrail of claim 1, characterized in that: the sliding sleeve is cylindrical.

9. The telescopic elevator car top guardrail of claim 1, characterized in that: and the large upright post (1) is provided with a clamping groove (12) matched with the spring (26).