CN218403262U

CN218403262U - Tensioning device of hand strap

Info

Publication number: CN218403262U
Application number: CN202222024028.1U
Authority: CN
Inventors: 董波; 虞继明
Original assignee: Ningbo Hongda Elevator Co Ltd
Current assignee: Ningbo Hongda Elevator Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-01-31
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a overspeed device tensioner in handrail area belongs to the tensioning equipment technical field in staircase handrail area. The problem that when the tensioning state of the hand strap is adjusted, a local structure of the existing hand strap tensioning equipment cannot support the hand strap is solved. The utility model relates to a overspeed device tensioner in handrail area includes first roller train, second roller train, gyro wheel seat and carries and draws the subassembly. When the first roller set is lifted upwards relative to the truss by the lifting assembly, one end of the first roller set is hinged to the second roller set, so that the second roller set rotates around the roller seat in the clockwise direction, the first roller set rises in the lifting process, and the second roller set still supports the handrail belt, so that the handrail belt is always in a tensioning state, and the handrail belt can stably work.

Description

Tensioning device of handrail belt

Technical Field

The utility model belongs to the technical field of the tensioning equipment in staircase handrail area, a overspeed device tensioner in handrail area is related to.

Background

The escalator or the moving sidewalk is a transportation tool for transporting pedestrians in a transportation belt mode, and the hand strap is an important moving part on the escalator or the moving sidewalk, so that passengers can hold the hand strap with hands when riding. The handrail belt can be loosened in the long-term running process and needs to be tensioned by a tensioning device, for example, the handrail belt tensioning device with the publication number of CN203359750U comprises an arc roller set (7) for supporting and tensioning the handrail belt, a pull rod adjusting device (1) capable of adjusting the horizontal height of the arc roller set (7) and a handrail belt guiding device, wherein part of rollers in the arc roller set (7) are clung to the handrail belt (10), one end of the arc roller set (7) is hinged to a truss (9) through a roller set mounting seat (8), and the pull rod adjusting device (1) is hinged to the other end of the arc roller set (7). Pull rod (3) pass a round hole on truss (9), the part that pull rod (3) are located on truss (9) is equipped with spring spacing post (4), pressure spring (5) and butt nut (6), spring spacing post (4) center have the through-hole, with pull rod (3) sliding fit, though above-mentioned scheme can realize handrail area tensioning function, when nevertheless with pull rod adjusting device pulling arc roller train around roller train mount pad upwards rotation, because of arc roller train and roller train mount pad are articulated, make the one end that the roller train mount pad was kept away from to the arc roller train will upwards bulge, and the junction of arc roller train and roller train mount pad is in the stationary state all the time, handrail area this moment is in the tensioning state again, so, the one end that the arc roller train is close to the roller train mount pad no longer supports handrail area, lead to handrail area and can not turn smoothly on the truss, cause handrail area just can't the steady motion.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provide a overspeed device tensioner that can support the handrail area all the time when adjusting handrail area tensioning state.

The purpose of the utility model can be realized by the following technical proposal: a handrail tensioning device, comprising:

a first roller train;

one end of the second roller group is hinged with the first roller group, the other end of the second roller group is provided with a roller seat, and the first roller group and the second roller group are both contacted with the bottom surface of the handrail belt;

one end of the lifting component is connected with the first roller group.

In the above tensioning device for a handrail belt, the first roller group includes a first roller frame, and a plurality of first rollers are arranged on the first roller frame.

In the above-mentioned tensioning device for a handrail belt, the first roller carrier is provided with a plurality of mounting holes, and one of the mounting holes is connected with the lifting assembly.

In the above tensioning device for a handrail belt, the second roller group includes a second roller frame, and the first roller frame is provided with a plurality of second rollers.

In the above-mentioned overspeed device tensioner of handrail area, all be equipped with on the both sides that first gyro wheel frame is close to second gyro wheel frame one end and extend the ear, second gyro wheel frame all is equipped with the board of bending on the both sides that is close to first gyro wheel frame one end, and two extend the ear and lie in two between the board of bending, and two extend the ear and two are bent the board and are articulated through same articulated shaft.

In the above-mentioned tensioner for a handrail, the articulated shaft is provided with the engaging wheel, and the engaging wheel is located between the two extending lugs.

In the above tensioning device for a handrail belt, the lifting assembly comprises a pull rod, one end of the pull rod is provided with a connecting piece, and the connecting piece is connected with one of the mounting holes through a bolt.

In the above-mentioned overspeed device tensioner of handrail area, be equipped with the screens piece on the pull rod, the screens piece can remove along the pull rod, the one end that the connecting piece was kept away from to the pull rod is installed fixation nut, the cover is equipped with the spring on the pull rod, the spring is located between fixation nut and the screens piece.

In the above tensioning device for a handrail belt, the first roller set is detachably connected with a bracket.

In the above-mentioned overspeed device tensioner of handrail area, can dismantle on the support and be connected with the direction bearing, the inside of handrail area is gone into to the direction bearing card.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. when the lifting assembly lifts the first roller train upwards relative to the truss, one end of the first roller train is hinged to the second roller train, so that the second roller train rotates around the roller seat along the clockwise direction, the first roller train rises in the rising process, and the second roller train still supports the hand strap, so that the hand strap is always in a tensioning state, and the hand strap can stably work.

2. The spring is located between fixation nut and the screens piece for the handrail area is in daily use, and when the handrail area was too the tensioning or took place a bit not hard up, the spring can corresponding emergence compression or extension, makes the handrail area maintain throughout at certain elasticity, ensures that the handrail area can normal operating.

3. Through the arrangement of the guide bearing, the hand strap can be directionally moved on the first roller set, the condition of deviation of the hand strap is avoided, and the hand strap can smoothly turn on the truss.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 in the direction B.

Fig. 3 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A of fig. 1.

Fig. 4 is an assembly view of the tensioner with the truss.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a handrail belt tensioning device of the present invention includes a first roller set 100, a second roller set 200, a roller seat 400, and a lifting assembly 500.

During assembly, one needs to mount the tensioner on the truss 600 of the escalator.

One end of the second roller set 200 is hinged to the first roller set 100, the other end of the second roller set 200 is provided with a roller seat 400, the first roller set 100 and the second roller set 200 are both in contact with the bottom surface of the handrail belt, one end of the lifting assembly 500 is connected to the first roller set 100, when the lifting assembly 500 is installed, the lifting assembly 500 is movably installed on the truss 600, and the roller seat 400 is connected to the truss 600, so that when the lifting assembly 500 lifts the first roller set 100 upwards relative to the truss 600, because one end of the first roller set 100 is hinged to the second roller set 200, the second roller set 200 rotates around the roller seat 400 in a clockwise direction, and thus, when the first roller set 100 rises, the second roller set 200 still supports the handrail belt, so that the handrail belt is always in a tensioned state, and further stable operation of the handrail belt is ensured.

The first roller set 100 includes a first roller frame 110, a plurality of first rollers 120 are arranged on the first roller frame 110, the second roller set 200 includes a second roller frame 210, a plurality of second rollers 220 are arranged on the first roller frame 110, and the first rollers 120 and the second rollers 220 always support the handrail belt in the moving process of the handrail belt, so that the handrail belt can smoothly turn in the truss 600, and the handrail belt can be ensured to be always in a tensioning state.

The first roller frame 110 is provided with a plurality of mounting holes 111, wherein one mounting hole 111 is connected with the lifting assembly 500, and the positions and heights of the mounting holes 111 are different, so that people can correspondingly select the mounting positions of the lifting assembly 500 and the first roller frame 110 according to the corner condition of the handrail belt; when the mounting hole 111 is formed in the first roller frame 110, the mounting hole 111 should be formed at a half of the first roller frame 110 close to the second roller frame 210, that is, the connection point of the lifting assembly 500 and the first roller frame 110 is located between the center of the first roller frame 110 and the second roller frame 210, so as to avoid the situation that the connection point between the first roller frame 110 and the second roller frame 210 is collapsed.

When people lift the first roller frame 110 upwards, the second roller frame 210 is far away from the first roller frame 110 and hinged through the roller seat 400, and the extending lug 112 is hinged with the bending plate 211, so that the joint of the extending lug 112 and the bending plate 211 is also protruded outwards, namely, the connecting wheel 310 installed on the connecting shaft is also protruded outwards, and meanwhile, the second roller frame 210 also rotates around the roller seat 400 in the clockwise direction, so that when the second roller 220 is lifted on the first roller frame 110, the second roller 220 can always support a handrail belt, and the handrail belt is always tensioned.

The lifting assembly 500 comprises a pull rod 510, wherein one end of the pull rod 510 is provided with a connecting piece 520, the connecting piece 520 is connected with one of the mounting holes 111 through a bolt 530, the pull rod 510 is provided with a clamping block 540, the clamping block 540 can move along the pull rod 510, one end of the pull rod 510, which is far away from the connecting piece 520, is provided with a fixing nut 550, the pull rod 510 is sleeved with a spring 560, the spring 560 is positioned between the fixing nut 550 and the clamping block, when the lifting assembly is installed, a person needs to clamp the clamping block 540 on the truss 600 and connect the connecting piece 520 with one of the mounting holes 111 through the bolt 530, so that when the person needs to adjust the tension of the handrail belt, the pull rod 510 can be lifted or lowered relative to the truss 600 only by correspondingly adjusting the position of the fixing nut 550 on the pull rod 510, and the fixing nut 550 is connected with the clamping block 540 through the spring 560, and the pull rod 510 is connected with the first roller frame 110 through the connecting piece 520, so that the first roller frame 110 can also be lifted, and the second roller frame 210 can rotate by a corresponding angle, and thus the handrail belt can be adjusted; secondly, the spring 560 is located between the fixing nut 550 and the clamping member, so that when the hand strap is too tensioned or loosened a little, the spring 560 can be compressed or extended correspondingly, the hand strap is always maintained at a certain tightness, and the normal operation of the hand strap is ensured.

Can dismantle on the first roller train 100 and be connected with support 130, can dismantle on the support 130 and be connected with direction bearing 131, the inside of handrail area is gone into to direction bearing 131 card for the handrail area can be directional removal on the first roller train 100 through the setting of this direction bearing 131, avoids the handrail area to take place the condition of off tracking, thereby makes the handrail area can realize turning smoothly on truss 600.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions of the embodiments as "first," "second," "a," etc. in this disclosure are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of the indicated features is indicative. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A handrail belt tensioning device, comprising:

a first roller train;

one end of the lifting component is connected with the first roller group.

2. The handrail belt tensioning device of claim 1, wherein the first roller set comprises a first roller frame on which a plurality of first rollers are provided.

3. The handrail belt tensioning device of claim 2, wherein the first roller frame is provided with a plurality of mounting apertures, one of which is connected to the pull-up assembly.

4. The handrail belt tensioning device of claim 2, wherein the second roller set comprises a second roller frame, and a plurality of second rollers are disposed on the first roller frame.

5. The handrail belt tensioning device of claim 4, wherein the first roller frame is provided with extension lugs on both sides of one end of the second roller frame, the second roller frame is provided with bending plates on both sides of one end of the first roller frame, the two extension lugs are located between the two bending plates, and the two extension lugs are hinged to the two bending plates through the same hinge shaft.

6. A handrail belt tensioning device according to claim 5, wherein a splice wheel is mounted on the hinge axis, the splice wheel being located between the two extension ears.

7. The handrail belt tensioning device of claim 3, wherein the pull assembly comprises a pull rod having a connector at one end, the connector being bolted to one of the mounting holes.

8. The handrail belt tensioning device of claim 7, wherein the pull rod is provided with a clamping block, the clamping block can move along the pull rod, a fixing nut is installed at one end of the pull rod, which is far away from the connecting piece, a spring is sleeved on the pull rod, and the spring is located between the fixing nut and the clamping piece.

9. The handrail belt tensioning device of claim 1, wherein a bracket is detachably connected to the first roller set.

10. The handrail belt tensioning device of claim 9, wherein a guide bearing is detachably connected to the support, and the guide bearing is snapped into the inside of the handrail belt.