An escalator with a mechanical ladder locking device

Abstract

The present invention discloses an escalator with a mechanical ladder locking device, which includes a driving main machine and a mechanical ladder locking device. The driving main machine includes a main machine housing, a main machine shaft and a flywheel fan. The top end of the main machine shaft has a shoulder platform; the mechanical ladder locking device includes a fixed seat and two fixed cranks. The two fixed cranks are welded to both sides of the fixed seat correspondingly. A fixed clamping hole penetrating up and down is formed in the middle of the fixed seat, and the fixed clamping hole is adapted to the shoulder platform; when locking the ladder, the fixed clamping hole is sleeved on the shoulder platform, and the two fixed cranks are correspondingly clamped into two clamping grooves on the main machine housing. The escalator with the mechanical ladder locking device of the present invention can reliably brake the driving main machine, and even if someone tries to start the escalator manually, the driving main machine will not rotate, thus ensuring that the escalator will not start and providing the maximum safety guarantee for the operators.

Description

Technical Field

[0001] The present invention relates to an escalator with a mechanical ladder locking device. Background Art

[0002] Please refer to Figure 1 , the power source and braking source of the escalator or moving walkway both come from the drive main machine 1'. The drive main machine drives (or brakes) the operation of the steps 3' through a series of pure mechanical transmissions such as driving chains 2'. The drive main machine 1' is installed inside the escalator, and a main machine shield 4' is detachably arranged on the upper part of the drive main machine 1'. Due to the reasons of its own mechanism, during maintenance and repair operations of the escalator or moving walkway, operators often need to enter the inside of the escalator for operations. During such operations, if there is a failure in the escalator control system, or if the start device is accidentally touched by a human or for some other reasons, resulting in the escalator starting or running away, it will cause great harm to the maintenance personnel.

[0003] During maintenance or repair, there is no load on the escalator, and the mechanical transmission will not malfunction. Therefore, if a mechanical structure is used to lock the drive main machine, making it impossible for the drive main machine to be activated in any way, the possibility of the escalator or moving walkway starting or running away by mistake can be completely avoided. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an escalator with a mechanical ladder locking device, which can reliably brake the drive main machine, and even if the escalator is manually started, the drive main machine will not rotate, thus ensuring that the escalator will not start and providing the maximum safety guarantee for the operators.

[0005] The technical solution to achieve the above purpose is: an escalator with a mechanical ladder locking device, including a drive main machine and a mechanical ladder locking device, wherein:

[0006] The drive main machine includes a main machine housing, a main machine shaft, and a flywheel fan. A plurality of vertical housing bosses are evenly distributed along the circumferential direction on the outer side wall of the main machine housing, and a card slot is formed between every two adjacent housing bosses; the main machine shaft is vertically arranged inside the main machine housing, the flywheel fan is arranged above the main machine housing, a shaft hole is opened in the middle of the flywheel fan, the top end of the main machine shaft passes through the shaft hole of the flywheel fan and extends above the flywheel fan, and a shaft shoulder platform is provided at the top end of the main machine shaft;

[0007] The mechanical ladder locking device includes a fixed seat and two fixed cranks. The two fixed cranks are welded to both sides of the fixed seat correspondingly. A fixed card hole penetrating up and down is opened in the middle of the fixed seat, and the fixed card hole is adapted to the shaft shoulder platform;

[0008] When the escalator is locked, the fixed clamping hole is sleeved on the shoulder platform, and the two fixed cranks are respectively clamped into two clamping grooves on the main machine housing.

[0009] For an escalator with a mechanical ladder locking device as described above, a main machine shield is detachably arranged on the upper part of the drive main machine.

[0010] For an escalator with a mechanical ladder locking device as described above, the cross-section of the shoulder platform is in a waist shape, and the fixed clamping hole is a waist-shaped hole adapted to the shoulder platform.

[0011] For an escalator with a mechanical ladder locking device as described above, the fixed seat is in a circular plate shape, and the two fixed cranks are respectively welded on the two radial sides of the fixed seat.

[0012] The escalator with a mechanical ladder locking device of the present invention can reliably brake the drive main machine, and even if someone tries to start the escalator manually, the drive main machine will not rotate, thus ensuring that the escalator will not start and providing the maximum safety guarantee for the operators. Brief Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the transmission mode of the escalator;

[0014] Figure 2a It is a schematic structural diagram of the drive main machine of the escalator of the present invention;

[0015] Figure 2b It is a schematic structural diagram of the drive main machine of the escalator of the present invention (removing the main machine shield);

[0016] Figure 2c It is a schematic structural diagram of the shoulder platform;

[0017] Figure 3 It is a front view of the mechanical ladder locking device of the escalator of the present invention;

[0018] Figure 4 It is a top view of the mechanical ladder locking device of the escalator of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the fixed clamping hole of the mechanical ladder locking device;

[0020] Figure 6 It is a usage state diagram of the mechanical ladder locking device of the escalator of the present invention;

[0021] Figure 7 For Figure 6 top view. Detailed Description of the Invention

[0022] In order to enable those skilled in the art of the present technology to better understand the technical solution of the present invention, the following will describe its specific implementation manners in detail with reference to the accompanying drawings:

[0023] Please refer to Figures 2a to 7 , the best embodiment of the present invention, an escalator with a mechanical ladder locking device, which includes a driving main machine 1 and a mechanical ladder locking device 3.

[0024] Please refer to again Figure 2a , Figure 2b and Figure 2c , the driving main machine 1 includes a main machine housing 11, a main machine shaft 12 and a flywheel fan 13. A plurality of vertical housing bosses 14 are evenly distributed on the outer side wall of the main machine housing 11 along its circumferential direction. A card slot 16 is formed between every two adjacent housing bosses 14 (see Figure 7 ); the main machine shaft 12 is vertically arranged in the main machine housing 11, the flywheel fan 13 is arranged above the main machine housing 11, a shaft hole is formed in the middle of the flywheel fan 13, the top end of the main machine shaft 12 passes through the shaft hole of the flywheel fan 13 and extends above the flywheel fan 13, and a shaft shoulder platform 15 is machined at the top end of the main machine shaft 12; in the normal state, a main machine guard 2 is detachably arranged on the upper part of the driving main machine 1.

[0025] Please refer to again Figure 3 , Figure 4 and Figure 5 , the mechanical ladder locking device 3 includes a fixed seat 31 and two fixed cranks 32. The fixed seat 31 is in the shape of a circular plate, and the two fixed cranks 32 are welded to the radial two sides of the fixed seat 31 in a one-to-one correspondence. A fixed card hole 33 penetrating up and down is formed in the middle of the fixed seat 31, and the fixed card hole 33 is adapted to the shaft shoulder platform 15; for example, the cross section of the shaft shoulder platform 15 is in the shape of a waist, and the fixed card hole 33 is a waist-shaped hole adapted to the shaft shoulder platform 15.

[0026] Please refer to again Figure 6 and Figure 7 , during maintenance or repair, when the ladder needs to be locked, first remove the main machine guard 2, then put the fixed card hole 33 of the mechanical ladder locking device 3 on the shaft shoulder platform 15, and the two fixed cranks are respectively clamped into the two card slots 16 on the main machine housing. The main machine housing 11 is a non-movable part. In this way, the main machine shaft 12 is locked by the mechanical ladder locking device and will not rotate. The yield force of the fixed seat 31 and the fixed clamping ring 33 is much greater than the starting torque of the driving main machine. The structure of the mechanical ladder locking device 3 is reliable and the braking is effective. The driving main machine can be reliably braked, and even if someone tries to start the ladder manually, the driving main machine will not rotate, thus ensuring that the escalator will not start and providing the maximum safety guarantee for the operators. The product safety is improved, and absolute guarantee is provided for the personal safety of maintenance and repair personnel.

[0027] In summary, the escalator with a mechanical ladder locking device according to the present invention can reliably brake the drive host, and even if someone manually operates the escalator to start, the drive host will not rotate, thus ensuring that the escalator will not start and providing the maximum safety guarantee for the operators.

[0028] Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as within the scope of the spirit of the present invention, changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An escalator with a mechanical ladder locking device, characterized in that, It includes a driving host and a mechanical ladder locking device, where: The driving host includes a host housing, a host shaft, and a flywheel fan. A number of vertical housing bosses are evenly distributed along the circumferential direction on the outer side wall of the host housing, and a card slot is formed between every two adjacent housing bosses; the host shaft is vertically arranged in the host housing, the flywheel fan is arranged above the host housing, a shaft hole is formed in the middle of the flywheel fan, the top end of the host shaft passes through the shaft hole of the flywheel fan and extends above the flywheel fan, and a shaft shoulder platform is provided at the top end of the host shaft; The mechanical ladder locking device includes a fixed seat and two fixed cranks. The two fixed cranks are welded to both sides of the fixed seat in a one-to-one correspondence. A fixed card hole penetrating up and down is formed in the middle of the fixed seat, and the fixed card hole is adapted to the shaft shoulder platform; When locking the ladder, the fixed card hole is sleeved on the shaft shoulder platform, and the two fixed cranks are respectively clamped into two card slots on the host housing; A host guard is detachably arranged on the upper part of the driving host; During maintenance or repair, when ladder locking is required, first remove the host guard, then sleeve the fixed card hole of the mechanical ladder locking device on the shaft shoulder platform, and the two fixed cranks are respectively clamped into two card slots on the host housing; the host housing is a non-movable component, and the host shaft is locked through the mechanical ladder locking device and will not rotate. The yield force of the fixed seat and the fixed clamping ring is much greater than the starting torque of the driving host.

2. The escalator with a mechanical ladder locking device according to claim 1, characterized in that The cross-section of the shaft shoulder platform is in a waist shape, and the fixed card hole is a waist-shaped hole adapted to the shaft shoulder platform.

3. An escalator with a mechanical ladder locking device according to claim 1, characterized in that, The fixed seat is in a circular plate shape, and the two fixed cranks are welded to the radial two sides of the fixed seat in a one-to-one correspondence.

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