CN216116637U

CN216116637U - Vibration test fixture for escalator handrail

Info

Publication number: CN216116637U
Application number: CN202122684852.5U
Authority: CN
Inventors: 徐秀龙
Original assignee: Shanghai Julong Rubber And Plastic Products Co ltd
Current assignee: Shanghai Julong Rubber And Plastic Products Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-22
Anticipated expiration: 2031-11-04

Abstract

The utility model relates to the technical field of test fixtures, in particular to a vibration test fixture for an escalator handrail. The handrail belt clamping device is simple in structure and novel in design, sliding friction between equipment and a handrail is changed into rolling friction through the arrangement of the grooves and the rollers, the influence of the friction on the working of the equipment is greatly reduced, the stability and the reliability of the equipment in the working process are improved, the two knobs are stirred to enable the two threaded rods to rotate, and then the distance between the clamping plates is changed, so that the handrail belt is clamped, the equipment can be prevented from falling off the handrail belt through the arrangement of the L-shaped structure of the clamping plates, and the clamping stability of the clamping plates can be improved under the action of the traction spring.

Description

Vibration test fixture for escalator handrail

Technical Field

The utility model relates to the technical field of test fixtures, in particular to a vibration test fixture for an escalator handrail.

Background

With the rapid development of national economy, the escalator has gradually become an important transportation tool in a people flow collecting and distributing center, and the escalator can transfer a large amount of passenger flow, is convenient and comfortable to take, is widely welcomed and paid attention to by people, is not only a transportation tool for riding instead of walk but also an attractive decoration at present, and cannot avoid generating vibration when the escalator is used, so that the comfort is influenced, and the escalator has a direct relation to the service life and the working efficiency.

Chinese patent publication No. CN206974710U discloses a vibration test fixture for escalator hand strap, used for fixing the vibration sensor on the handrail belt of the escalator, comprising a frame body, two oppositely arranged clamping blocks arranged on the frame body, a gradual change block fixed on at least one clamping block and a sliding frame arranged on the frame body, the gradual change block extends into the sliding frame, the clamping block can move along the width direction of the frame body relative to the frame body, the sliding frame can move along the length direction of the frame body relative to the frame body, although the installation difficulty of the equipment is low, the equipment is easy to fall off from the handrail belt due to the vibration of the handrail belt when the equipment is used, the test is inconvenient, and when the equipment is used, the friction force between the handrail and the equipment can influence the normal work of the equipment, and the equipment can be prevented from moving along with the handrail in serious cases. Accordingly, a vibration test jig for an escalator handrail is provided by those skilled in the art to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibration test clamp for an escalator handrail, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a vibration test fixture for an escalator handrail comprises a bearing plate, wherein a reserved groove is formed in the middle of the bearing plate, supporting plates are mounted at two ends of the bearing plate, grooves are formed in the lower ends of the two supporting plates, rollers are symmetrically and rotatably mounted in the grooves, and a clamping piece is arranged between the two supporting plates;

the holder is including rotating the threaded rod of installing in the backup pad, two the one end of threaded rod all runs through the backup pad and movable mounting has splint, equidistant traction spring of installing between splint and the adjacent backup pad.

As a further aspect of the utility model: the knob is installed to the one end of threaded rod, the surface of knob is equipped with anti-skidding muscle.

As a further aspect of the utility model: the clamping plate is a component with an L-shaped structure, and the clamping plate is rotatably connected with the threaded rod through a bearing.

As a further aspect of the utility model: the surface of the clamping plate is provided with a non-slip mat which is a rubber component.

As a further aspect of the utility model: the slide rails are symmetrically arranged at positions, close to the lower end, of two sides of the bearing plate, and the slide blocks in sliding connection with the slide rails are symmetrically arranged at the upper ends of the clamping plates.

As a further aspect of the utility model: the bearing plate is connected with the supporting plate in a welding mode, and mounting holes are formed in the positions, close to four corners of the reserved groove, of the upper surface of the bearing plate.

Compared with the prior art, the utility model has the beneficial effects that: the handrail belt clamping device is simple in structure and novel in design, sliding friction between equipment and a handrail is changed into rolling friction through the arrangement of the grooves and the rollers, the influence of the friction on the working of the equipment is greatly reduced, the stability and the reliability of the equipment in the working process are improved, in addition, the distance between the clamping plates is changed by stirring the two knobs to enable the two threaded rods to rotate, and therefore the clamping of the handrail belt is achieved, the equipment can be prevented from falling off the handrail belt through the arrangement of the L-shaped structure of the clamping plates, the clamping stability of the clamping plates can be improved under the action of the traction spring, and the clamping effect after the equipment is installed is improved.

Drawings

FIG. 1 is a schematic structural view of a vibration test fixture for an escalator handrail;

FIG. 2 is a schematic structural view of a clamping member in a vibration test fixture for an escalator handrail;

fig. 3 is a schematic view of the internal structure of a vibration test fixture for an escalator handrail.

In the figure: 1. a carrier plate; 2. reserving a groove; 3. a support plate; 4. a slide rail; 5. a splint; 6. a threaded rod; 7. a knob; 8. a slider; 9. a non-slip mat; 10. a traction spring; 11. a roller; 12. and (4) a groove.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the utility model, a vibration test fixture for an escalator handrail comprises a bearing plate 1, a preformed groove 2 is formed in the middle of the bearing plate 1, supporting plates 3 are mounted at two ends of the bearing plate 1, grooves 12 are formed in the lower ends of the two supporting plates 3, rollers 11 are symmetrically and rotatably mounted in the grooves 12, sliding friction between equipment and a handrail is changed into rolling friction through the arrangement of the grooves 12 and the rollers 11, the influence of friction on the equipment during operation is greatly reduced, the stability and the reliability of the equipment during operation are improved, and a clamping piece is arranged between the two supporting plates 3;

the holder is including rotating the threaded rod 6 of installing in backup pad 3, the one end of two threaded rods 6 all runs through backup pad 3 and movable mounting has splint 5, equidistant install traction spring 10 between splint 5 and the adjacent backup pad 3, stir two knobs 7 and make two threaded rods 6 rotate, make threaded rod 6 extrusion splint 5 motion through threaded connection, under the sliding connection between slide rail 4 and slider 8, traction splint 5 move, thereby adjust the distance between two splint 5, thereby realize the centre gripping in handrail area.

In fig. 1, a knob 7 is installed at one end of a threaded rod 6, and anti-slip ribs are arranged on the surface of the knob 7, so that the threaded rod 6 can be driven to rotate.

In fig. 2, the clamping plate 5 is a member with an L-shaped structure, and the device can be prevented from falling off from the handrail belt by the arrangement of the L-shaped structure of the clamping plate 5, and the clamping plate 5 is rotatably connected with the threaded rod 6 through a bearing, so that the threaded rod 6 extrudes the clamping plate 5 to move through threaded connection.

In fig. 1, the surface of the clamp plate 5 is provided with the non-slip mat 9, and the non-slip mat 9 is a rubber member, so that the friction between the clamp plate 5 and the handrail belt is increased, and the stability of the handrail belt in clamping is improved.

In fig. 1 and 3, the two sides of the bearing plate 1 are symmetrically provided with slide rails 4 near the lower end, the upper ends of the two clamping plates 5 are symmetrically provided with slide blocks 8 which are in sliding connection with the slide rails 4, and the clamping plates 5 are pulled to move under the sliding connection between the slide rails 4 and the slide blocks 8, so that the distance between the two clamping plates 5 is adjusted, and the clamping of the handrail belt is realized.

In fig. 1, the bearing plate 1 is connected with the supporting plate 3 by welding, and the four corners of the upper surface of the bearing plate 1 close to the preformed groove 2 are provided with mounting holes, which is favorable for mounting the testing device.

The working principle of the utility model is as follows: the handrail belt clamping device is simple in structure and novel in design, when the handrail belt clamping device is used, the two knobs 7 are poked to enable the two threaded rods 6 to rotate, the threaded rods 6 are enabled to extrude the clamping plates 5 to move through threaded connection, the clamping plates 5 are pulled to move under sliding connection between the sliding rails 4 and the sliding blocks 8, so that the distance between the two clamping plates 5 is adjusted, the handrail belt is clamped, equipment can be prevented from falling off the handrail belt through the arrangement of the L-shaped structures of the clamping plates 5, the clamping stability of the clamping plates 5 can be improved under the action of the traction springs 10, the clamping effect after the equipment is installed is further improved, after the equipment is installed, sliding friction between the equipment and the handrail is changed into rolling friction through the arrangement of the grooves 12 and the rollers 11, the influence of friction on the equipment during operation is greatly reduced, and the stability and the reliability of the equipment during operation are improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The vibration test fixture for the escalator handrail comprises a bearing plate (1), and is characterized in that a preformed groove (2) is formed in the middle of the bearing plate (1), supporting plates (3) are mounted at two ends of the bearing plate (1), grooves (12) are formed in the lower ends of the two supporting plates (3), rollers (11) are symmetrically and rotatably mounted in the grooves (12), and a clamping piece is arranged between the two supporting plates (3);

the holder is including rotating threaded rod (6) of installing in backup pad (3), two the one end of threaded rod (6) all runs through backup pad (3) and movable mounting has splint (5), equidistant traction spring (10) of installing between splint (5) and adjacent backup pad (3).

2. The vibration test fixture for the escalator handrail as claimed in claim 1, wherein a knob (7) is installed at one end of the threaded rod (6), and anti-slip ribs are arranged on the surface of the knob (7).

3. A vibration test jig for an escalator handrail according to claim 1, characterized in that the clamp plate (5) is a member of an L-shaped structure, and the clamp plate (5) is rotatably connected with the threaded rod (6) through a bearing.

4. A vibration test jig for an escalator handrail according to claim 1, characterized in that the surface of the clamping plate (5) is provided with a non-slip mat (9), and the non-slip mat (9) is a rubber member.

5. The vibration test fixture for the escalator handrail as claimed in claim 1, wherein the two sides of the loading plate (1) are symmetrically provided with slide rails (4) near the lower ends, and the upper ends of the two clamping plates (5) are symmetrically provided with slide blocks (8) slidably connected with the slide rails (4).

6. The vibration test fixture for the escalator handrail as claimed in claim 1, wherein the bearing plate (1) is connected with the support plate (3) by welding, and mounting holes are formed in the positions, close to four corners of the preformed groove (2), of the upper surface of the bearing plate (1).