Simple middle hand strap tensioning device

Abstract

The utility model relates to the technical field of elevator equipment, in particular to a simple middle handrail belt tensioning device which comprises a bearing cross beam, a handrail belt tensioning adjusting module is arranged in the middle of the upper end of the bearing cross beam, and handrail belt tensioning fixing modules are symmetrically arranged on the two sides of the upper end of the bearing cross beam. The handrail belt tensioning adjusting module comprises a vertical C-shaped section bar fixed on the bearing cross beam, the handrail belt tensioning adjusting module further comprises a movable plate, a sliding screw sleeved in the C-shaped section bar is arranged at the rear end of the movable plate, and the movable plate moves up and down along the C-shaped section bar through the sliding screw; a pressing roller group is arranged on the front surface of the movable plate, a transverse plate is arranged on the back surface of the movable plate, guide holes are formed in the same vertical line of the transverse plate and the bearing cross beam, and screw rods are inserted into the guide holes; the handrail belt tensioning and fixing module comprises a vertical stand column assembled on the bearing cross beam, and a guide set used for guiding a handrail belt is arranged on the stand column. According to the technology, flexible adjustment can be achieved according to different lifting heights through the design of the handrail belt tensioning adjustment module.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, in particular to a simple middle handrail belt tensioning device. Background Art

[0002] The handrail of the escalator will stretch slightly during use. Although the elongation ratio is small compared to the handrail itself, when the handrail itself is very long, even if the elongation rate is very small, its elongation will be a considerable number. The existing technology generally reserves a position for intermediate tensioning, but there is a small probability that the reserved tension still cannot meet the handrail tightness requirements. At this time, a quick-install intermediate handrail tensioning device is needed. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0004] A simple middle handrail tensioning device comprises a bearing crossbeam, a handrail tensioning and adjusting module is arranged in the middle of the upper end of the bearing crossbeam, and handrail tensioning and fixing modules are symmetrically arranged on both sides of the upper end of the bearing crossbeam; the handrail tensioning and adjusting module comprises a vertical C-profile fixed on the bearing crossbeam, and the handrail tensioning and adjusting module also comprises a movable plate, a sliding screw sleeved in the C-profile is arranged at the rear end of the movable plate, and the movable plate moves up and down along the C-profile by the sliding screw; a downward pressing roller group is arranged on the front side of the movable plate, and a cross plate is arranged on the back side of the movable plate, and guide holes are arranged on the same vertical line between the cross plate and the bearing crossbeam, and screws are inserted in the guide holes; the handrail tensioning and fixing module comprises a vertical column assembled on the bearing crossbeam, and a guide group for guiding the handrail is arranged on the column.

[0005] Furthermore, a locking nut is provided on the screw rod.

[0006] Furthermore, the pressure roller group is configured to include left and right pressure rollers and a central pressure roller, the left and right pressure rollers are symmetrically distributed along the center line of the central pressure roller, and the horizontal plane at the lower end point of the central pressure roller is lower than the horizontal plane at the lower end points of the left and right pressure rollers.

[0007] Furthermore, the guide group includes an upper guide plate and a lower roller assembled on the column, and a gap for accommodating the handrail is reserved between the upper guide plate and the lower roller.

[0008] Furthermore, handrail belt tensioning interference modules are symmetrically provided on both sides of the upper end of the bearing crossbeam, and the handrail belt tensioning interference module is located between the handrail belt tensioning adjustment module and the handrail belt tensioning fixing module.

[0009] Furthermore, handrail belt tensioning interference modules are symmetrically provided on both sides of the upper end of the bearing crossbeam, and the handrail belt tensioning interference module is located between the handrail belt tensioning adjustment module and the handrail belt tensioning fixing module.

[0010] Furthermore, the handrail belt tensioning interference module includes a fixing plate fixed to the bearing crossbeam, and a lower roller group is provided at the front section of the fixing plate.

[0011] The beneficial effects of the utility model are:

[0012] (1) The handrail belt tension adjustment module design can be flexibly adjusted according to different lifting heights;

[0013] (2) The positive and negative bend transitions of the handrail at the handrail tensioning point are fully considered to ensure the service life of the handrail.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 Schematic diagram of the local structure on the load-bearing beam.

[0017] Figure 3 This is a schematic diagram of the local structure of the handrail tensioning and adjustment module.

[0018] Figure 4 This is a schematic diagram of the local structure of the handrail tensioning and fixing module.

[0019] Figure 5 This is a schematic diagram of the local structure of the handrail belt tensioning interference module.

[0020] The accompanying drawings are marked as follows:

[0021] DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5A simple middle handrail tensioning device comprises a bearing crossbeam 1, a handrail tensioning and adjusting module 2 is arranged in the middle of the upper end of the bearing crossbeam 1, and handrail tensioning and fixing modules 3 are symmetrically arranged on both sides of the upper end of the bearing crossbeam 1; the handrail tensioning and adjusting module 2 comprises a vertical C-profile fixed on the bearing crossbeam 1, and the handrail tensioning and adjusting module 2 also comprises a movable plate 202, and a sliding screw 203 sleeved in the C-profile is arranged at the rear end of the movable plate 202, and the movable plate 202 moves up and down along the C-profile by the sliding screw 203; a downward pressing roller group 204 is arranged on the front side of the movable plate 202, and a horizontal plate 205 is arranged on the back side of the movable plate 202, and guide holes 206 are arranged on the same vertical line of the horizontal plate 205 and the bearing crossbeam 1, and screws 207 are inserted in the guide holes 206; the handrail tensioning and fixing module 3 comprises a vertical column 301 fixed on the bearing crossbeam 1, and a guide group 302 for guiding the handrail is arranged on the column 301.

[0024] The technical purpose is to solve the disadvantage that temporary modification is required when installing the middle handrail tensioner on site, and to provide a middle handrail tensioning device with reliable structure, easy installation and wide applicability.

[0025] Specifically, the load-bearing crossbeam 1 is the supporting structure of the entire device, and a handrail belt tensioning and adjusting module 2 and a symmetrical handrail belt tensioning and fixing module 3 are installed in the middle of the upper end.

[0026] The structural design of the handrail belt tensioning and adjusting module 2 includes a vertical C-profile and a movable plate 202 fixed on the bearing crossbeam 1. The movable plate 202 is sleeved in the C-profile by a sliding screw 203 at the rear end. The movable plate 202 moves up and down along the C-profile through the sliding screw 203, thereby realizing the upward and downward guided displacement movement of the movable plate 202. Based on the movable plate 202, a downward pressure roller group 204 is provided on the front side, and a horizontal plate 205 is provided on the back side. Guide holes 206 are provided on the same vertical line of the horizontal plate 205 and the bearing crossbeam 1. Screws 207 are inserted in the guide holes 206, and locking nuts 208 are provided on the screws 207. That is, when temporary modification is required, the operator can adjust the position of the movable plate 202 by adjusting the screws 207 and the locking nuts 208, so as to adjust the tension of the handrail belt by the upward and downward pressure roller groups 204 of the movable plate 202 accordingly, and an assembly hole is provided between the downward pressure roller group 204 and the movable plate 202.

[0027] For the downward pressure roller group 204, it is set to be left and right downward pressure rollers 209 and a central downward pressure roller 210. The left and right downward pressure rollers 209 are symmetrically distributed along the center line of the central downward pressure roller 210, and the horizontal plane where the lower end point of the central downward pressure roller 210 is located is lower than the horizontal plane where the lower end points of the left and right downward pressure rollers 209 are located, that is, during the downward pressure process, the handrail belt passing through the middle is tensioned in an arc shape.

[0028] The structural design of the handrail belt tensioning and fixing module 3 is provided with a vertical column 301 assembled on the bearing beam 1, and a guide group 302 for guiding the handrail belt is provided on the column 301. The column 301 is fixed to the bearing beam 1 by screws, and the guide group 302 is fixed to the column 301 by screws, so as to facilitate installation.

[0029] The guide group 302 includes an upper guide plate 303 and a lower roller 304 assembled on the column 301, and a gap for accommodating the handrail belt is reserved between the upper guide plate 303 and the lower roller 304, so that the handrail belt flows through the gap and enters the handrail belt tensioning adjustment module 2.

[0030] And handrail tensioning interference modules 4 are symmetrically provided on both sides of the upper end of the load-bearing beam 1, and the handrail tensioning interference module 4 is located between the handrail tensioning adjustment module 2 and the handrail tensioning fixing module 3. The handrail tensioning interference module 4 includes a fixing plate 401 fixed on the load-bearing beam 1, and a lower roller group 402 is provided at the front section of the fixing plate 401. On the basis of the guide group 302, the lower roller group 402 is additionally provided to form a circular arc in cooperation with the handrail of the escalator, thereby ensuring a smooth transition when the handrail is tensioned.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A simple middle handrail belt tensioning device, characterized in that: The invention comprises a bearing crossbeam (1), wherein a handrail belt tensioning and adjusting module (2) is provided at the middle of the upper end of the bearing crossbeam (1), and handrail belt tensioning and fixing modules (3) are symmetrically provided at both sides of the upper end of the bearing crossbeam (1); the handrail belt tensioning and adjusting module (2) comprises a vertical C-shaped profile fixed on the bearing crossbeam (1), and the handrail belt tensioning and adjusting module (2) also comprises a movable plate (202), and a sliding screw (203) sleeved in the C-shaped profile is provided at the rear end of the movable plate (202), and the movable plate (202) moves up and down along the C-shaped profile through the sliding screw (203); A pressing roller group (204) is provided on the front of the movable plate (202), a transverse plate (205) is provided on the back of the movable plate (202), guide holes (206) are provided on the same vertical line as the transverse plate (205) and the bearing crossbeam (1), and screw rods (207) are inserted into the guide holes (206); The handrail belt tensioning and fixing module (3) comprises a vertical column (301) assembled on a bearing crossbeam (1), and a guide group (302) for guiding the handrail belt is provided on the column (301).

2. A simple middle handrail belt tensioning device according to claim 1, characterized in that: A locking nut (208) is provided on the screw rod (207).

3. A simple middle handrail belt tensioning device according to claim 1, characterized in that: The pressing roller group (204) is configured to include left and right pressing rollers (209) and a central pressing roller (210). The left and right pressing rollers (209) are symmetrically distributed along the center line of the central pressing roller (210), and the horizontal plane at which the lower end point of the central pressing roller (210) is located is lower than the horizontal plane at which the lower end points of the left and right pressing rollers (209) are located.

4. A simple middle handrail belt tensioning device according to claim 1, characterized in that: The guide group (302) comprises an upper guide plate (303) and a lower roller (304) which are assembled on the column (301), and a gap for accommodating the handrail is reserved between the upper guide plate (303) and the lower roller (304).

5. The simple middle handrail belt tensioning device according to claim 1 is characterized in that: Handrail belt tension interference modules (4) are symmetrically arranged on both sides of the upper end of the bearing crossbeam (1), and the handrail belt tension interference modules (4) are located between the handrail belt tension adjustment module (2) and the handrail belt tension fixing module (3).

6. A simple middle handrail belt tensioning device according to claim 5, characterized in that: The handrail belt tension interference module (4) comprises a fixing plate (401) fixed on the bearing crossbeam (1), and a lower roller group (402) is provided at the front section of the fixing plate (401).

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