A curved rail safety device and system

Abstract

The application discloses a curved guide rail safety device, which comprises a first guide rail, a second guide rail, a press rail, an upper end of a first swing arm rotatably connected to a front side of the press rail, a lower end of the first swing arm rotatably connected to a truss, a first torsion bar spring comprising a first hook section hung on the first swing arm and a first torsion bar section connected to the first hook section, an upper end of a second swing arm rotatably connected to a rear side of the press rail, a lower end of the second swing arm rotatably connected to the truss, a second torsion bar spring comprising a second hook section hung on the second swing arm and a second torsion bar section connected to the second hook section, and a proximal end limiting block arranged below the press rail. The application has a curved section step safety monitoring function. When a step auxiliary wheel is abnormally lifted to exceed a threshold value in a curved section, a monitor is triggered, a signal is sent to a control system, and an escalator is stopped to ensure safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator equipment, in particular to a curved guide rail safety device. BACKGROUND

[0002] The passenger section of an escalator can generally be divided into an upper horizontal section, an upper curved section, an inclined section, a lower curved section and a lower horizontal section; the upper curved section is the transition section between the upper horizontal section and the inclined section, and the lower curved section is the transition section between the lower horizontal section and the inclined section; continuously running steps, when in the position of the upper curved section and the lower curved section, have a relative displacement between adjacent steps in the height direction, and when the step kickboard is pressed by an object such as a shoe to generate an upward frictional force, the rear end of the step (the position of the step auxiliary wheel) is lifted upward, thereby causing the risk of falling or falling to the truss for passengers; at the same time, when the abnormal lifting amount is too large, the lifted part exceeds the height of the comb teeth, and there is a risk of colliding with the comb teeth. The escalator equipped with the curved guide rail safety device can effectively avoid the problem of abnormal lifting of the steps caused by the above factors.

[0003] Patent CN202010153382.7 A step anti-lifting brake device and an automatic escalator type equipment proposes a device that can both prevent the abnormal lifting of the step body when the escalator type equipment is working normally and distribute the brake for each step when there is an emergency braking demand, which can effectively solve the above problems; but generally, the automatic escalator already contains a main brake, and in the case where there is no additional brake demand or the additional brake has met the customer's demand, the function of distributing the brake for the steps undoubtedly increases the cost. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a curved guide rail safety device.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0006] A curved guide rail safety device, comprising: a first guide rail for guiding the main wheel, a second guide rail for guiding the auxiliary wheel, a pressure rail located above or below the second guide rail; and

[0007] A first swing arm, the upper end of the first swing arm is rotatably connected to the front side of the pressure rail, and the lower end of the first swing arm is rotatably connected to the truss;

[0008] A second swing arm, the upper end of the second swing arm is rotatably connected to the rear side of the pressure rail, and the lower end of the second swing arm is rotatably connected to the truss;

[0009] at least one torsion spring, the torsion spring comprising a hook segment hung on the first swing arm and / or the second swing arm, and a torsion rod segment connected to the hook segment, wherein the hook segment is hung on the first swing arm and / or the second swing arm from top to bottom to provide downward pressure to the first swing arm and / or the second swing arm, and allows the hook segment to slide along the first swing arm and / or the second swing arm, and the other end of the torsion rod segment is fixed to the truss relative to the hook segment; and

[0010] The lower side of the pressing rail is provided with a proximal limit block.

[0011] The bending rail safety device, wherein the at least one torsion spring comprises a first torsion spring and a second torsion spring.

[0012] The first torsion spring comprises a first hook segment hung on the first swing arm, and a first torsion rod segment connected to the first hook segment, wherein the first hook segment is hung on the first swing arm from top to bottom to provide downward pressure to the first swing arm, and allows the first hook segment to slide along the first swing arm, and the other end of the first torsion rod segment is fixed to the truss relative to the first hook segment.

[0013] The second torsion spring comprises a second hook segment hung on the second swing arm, and a second torsion rod segment connected to the second hook segment, wherein the second hook segment is hung on the second swing arm from top to bottom to provide downward pressure to the second swing arm, and allows the second hook segment to slide along the second swing arm, and the other end of the second torsion rod segment is fixed to the truss relative to the second hook segment.

[0014] The bending rail safety device, wherein the upper side of the pressing rail is provided with a monitor, and the upper side of the monitor is provided with a distal limit block.

[0015] The bending rail safety device, wherein one end of the pressing rail is hinged to one end of the first swing arm through a first hinge, and the other end of the first swing arm is hinged to the truss through a second hinge.

[0016] The bending rail safety device, wherein the other end of the pressing rail is hinged to one end of the second swing arm through a third hinge, and the other end of the second swing arm is hinged to the truss through a fourth hinge.

[0017] The bending rail safety device, wherein each of the first torsion rod segment and the first hook segment, and the second torsion rod segment and the second hook segment has an initial rotation angle for applying an initial torque.

[0018] The bending rail safety device, wherein the pressing rail, the first swing arm, the second swing arm and the truss constitute a four-bar linkage mechanism.

[0019] The curved guide rail safety device, wherein the first swing arm and the second swing arm each have a vertical part capable of swinging in the front-back direction in a non-horizontal plane, and the first hook section and the second hook section are respectively hung on the vertical part of the first swing arm and the vertical part of the second swing arm.

[0020] The curved guide rail safety device, wherein the first swing arm and the second swing arm each have a vertical part capable of swinging in the front-back direction in a non-horizontal plane, and the first hook section and the second hook section are respectively hung on the vertical part of the first swing arm and the vertical part of the second swing arm.

[0021] The curved guide rail safety device, wherein the first swing arm and the second swing arm each have a vertical part capable of swinging in the front-back direction in a non-horizontal plane, and the first hook section and the second hook section are respectively hung on the vertical part of the first swing arm and the vertical part of the second swing arm.

[0022] The curved guide rail safety system, wherein it comprises two symmetrically arranged curved guide rail safety devices as described above.

[0023] The curved guide rail safety device, wherein in the two symmetrically arranged curved guide rail safety devices, the two symmetrically arranged first torsion bar springs and / or the two symmetrically arranged second torsion bar springs are integrally connected.

[0024] The present application has the following advantages compared with the prior art:

[0025] (1) The present application has a curved section step safety monitoring function. When the step auxiliary wheels are abnormally lifted in the curved section and exceed a threshold value, the monitor is triggered, and the signal is sent to the control system to stop the escalator, ensuring safety.

[0026] (2) The present application has a curved section step anti-lifting limiting function. When the step auxiliary wheels are abnormally lifted in the curved section and exceed another threshold value, the step is prevented from being further lifted to cause the step to collide with the comb teeth and other dangers.

[0027] (3) The curved guide rail safety device of the present application is a single degree of freedom system, and the motion trajectory of the pressure rail is determined. The mechanical parameter consistency of the curved guide rail safety device triggered by the step at each position in the curved section is better. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the front side of the curved guide rail safety device of the present application.

[0029] Figure 2 is a schematic view of the rear side of the curved guide rail safety device of the present application.

[0030] Figure 3 is a partial enlarged view of the curved guide rail safety device of the present application.

[0031] In the drawings: S1, step; S101L, left main wheel; S101R, right main wheel; S102L, left auxiliary wheel; S102R, right auxiliary wheel; 1, first guide rail; 2, second guide rail; 3, pressure rail; 41, first swing arm; 42, second swing arm; 51, first torsion bar spring; 511, first hook section; 512, first torsion bar section; 52, second torsion bar spring; 521, second hook section; 522, second torsion bar section; 6, proximal end limiting block. DETAILED DESCRIPTION

[0032] The application will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the application.

[0033] Figure 1 is a schematic view of the curved guide rail safety device of the application, please see Figure 1 As shown in the drawing, a curved guide rail safety device of a preferred embodiment is shown, which is suitable for escalator type equipment, wherein the escalator type equipment comprises a truss, which is used to fix various parts on the escalator type equipment, and the escalator type equipment further comprises steps S1 to S1, left main wheels S101L to Sk01L, left auxiliary wheels S102L to Sk02L, right main wheels S101R to Sk01R and right auxiliary wheels S102R to Sk02R, wherein k is the number of steps. In other words, each step has corresponding left main wheels, left auxiliary wheels, right main wheels and right auxiliary wheels.

[0034] In the Figure 1 of the embodiment, only the steps S1, left main wheels S101L, right main wheels S101R, left auxiliary wheels S102L and right auxiliary wheels S102R are taken as examples for description.

[0035] As a preferred embodiment, the curved guide rail safety device of the embodiment comprises: a first guide rail 1 for guiding the main wheels, a second guide rail 2 for guiding the left auxiliary wheels S102L, and a pressure rail 3 located above or below the second guide rail 2 (in this embodiment, the pressure rail 3 is pressed on the anti-jumping hook, so the pressure rail 3 is located below or flush with the second guide rail 2; when the pressure rail 3 is pressed on the auxiliary wheels, the pressure rail 3 is correspondingly located above the second guide rail 2).

[0036] Further, as a preferred embodiment, the curved guide rail safety device further comprises: a first swing arm 41, the upper end of the first swing arm 41 is rotatably connected to the front side of the pressure rail 3, and the lower end of the first swing arm 41 is rotatably connected to the truss.

[0037] Further, as a preferred embodiment, the curved rail safety device further comprises: a first torsion spring 51, the first torsion spring 51 comprising: a first hook segment 511 hung on the first swing arm 41, and a first torsion segment 512 connected with the first hook segment 511, wherein the first hook segment 511 is hung on the first swing arm 41 from top to bottom to provide downward pressure to the first swing arm 41, and allows the first hook segment 511 to slide along the first swing arm 41, and the other end of the first torsion segment 512 is fixed to the truss relative to the first hook segment 511.

[0038] Preferably, the first hook segment 511 and the first torsion segment 512 are substantially perpendicular. The first hook segment 511 and the first torsion segment 512 can relatively twist and deform to form a torsion spring.

[0039] Further, as a preferred embodiment, the curved rail safety device further comprises: a second swing arm 42, the upper end of the second swing arm 42 is rotatably connected with the rear side of the pressure rail 3, and the lower end of the second swing arm 42 is rotatably connected with the truss.

[0040] Further, as a preferred embodiment, the curved rail safety device further comprises: a second torsion spring 52, the second torsion spring 52 comprising: a second hook segment 521 hung on the second swing arm 42, and a second torsion segment 522 connected with the second hook segment 521, wherein the second hook segment 521 is hung on the second swing arm 42 from top to bottom to provide downward pressure to the second swing arm 42, and allows the second hook segment 521 to slide along the second swing arm 42, and the other end of the second torsion segment 522 is fixed to the truss relative to the second hook segment 521.

[0041] Preferably, the second hook segment 521 and the second torsion segment 522 are substantially perpendicular. The second hook segment 521 and the second torsion segment 522 can relatively twist and deform to form a torsion spring.

[0042] In other embodiments, only one of the first torsion spring 51 and the second torsion spring 52 can be included.

[0043] Further, as a preferred embodiment, the lower side of the pressure rail 3 is provided with a proximal limit block 6.

[0044] Further, as a preferred embodiment, the upper side of the pressure rail 3 is provided with a monitor, and the upper side of the monitor is provided with a distal limit block.

[0045] It should be particularly noted that the above "upper side" is used to describe the relative height relationship, and is not limited to the specific position relationship of "directly above".

[0046] In the ladder step Sk (for example Figure 1When the escalator is running to the curved section of the escalator as shown in the figure S1), the left main wheel S101L and the right main wheel S101R run on the two first guide rails 1 respectively, and the left auxiliary wheel S102L and the right auxiliary wheel S102R run on the two second guide rails 2 respectively.

[0047] Further, as a preferred embodiment, one end of the pressing rail 3 is hinged to one end of the first swing arm 41 through a first hinge, and the other end of the first swing arm 41 is hinged to the truss through a second hinge.

[0048] Further, as a preferred embodiment, the other end of the pressing rail 3 is hinged to one end of the second swing arm 42 through a third hinge, and the other end of the second swing arm 42 is hinged to the truss through a fourth hinge.

[0049] It should be particularly pointed out that the hinge mechanism is not the only mechanism to realize the relative motion relationship between the pressing rail 3 and the first swing arm 41 and the second swing arm 42. In other words, as long as the first swing arm 41 is non-displaced and rotatable relative to the pressing rail 3, and the second swing arm 42 is non-displaced and rotatable relative to the pressing rail 3.

[0050] Further, as a preferred embodiment, there is an initial rotation angle between the first torsion bar section 512 and the first hook section 511, and between the second torsion bar section 522 and the second hook section 521, for applying an initial torque. The initial torque described above causes the pressing rail 3 to press against the proximal limit block 6; the proximal limit block 6 is used to limit the distance between the pressing rail 3 and the left auxiliary wheel S102L, which is the left first threshold displacement.

[0051] When the left auxiliary wheel S102L is abnormally lifted and exceeds the left first threshold displacement, the pressing rail 3 is lifted, and the first swing arm 41 and the second swing arm 42 swing synchronously;

[0052] When the lifting amount reaches the left second threshold displacement, the monitor detects an abnormal signal and sends the signal to the escalator control system, and the control system causes the escalator brake to brake to stop the escalator;

[0053] When the lifting amount reaches the left third threshold displacement, the pressing rail 3 contacts the distal limit block and stops being lifted upward continuously.

[0054] The left first threshold lifting force, the left second threshold lifting force, and the left third threshold lifting force correspond to the left first threshold displacement, the left second threshold displacement, and the left third threshold displacement respectively.

[0055] When the curved guide rail safety device of the present application is arranged on the right side, it has basically the same situation as the left side mechanism described above.

[0056] In the embodiment, the auxiliary rotating hinge added to increase the guiding accuracy of the first torsion bar segment 512 and / or the second torsion bar segment 522 can also be provided with two coaxial rotating hinges at the two end positions of the first torsion bar segment 512 and / or the second torsion bar segment 522 when the mechanism kinematics principle is consistent with the application.

[0057] The hinge in the embodiment is used to provide a rotating degree of freedom, and in actual application, various specific structures or other alternative structures can also be used.

[0058] Further, as a preferred embodiment, the pressing rail 3, the first swing arm 41, the second swing arm 42 and the truss constitute a four-bar linkage mechanism.

[0059] Further, as a preferred embodiment, the first swing arm 41 and the second swing arm 42 each have a vertical part capable of swinging in the front-back direction in a non-horizontal plane, and the first hook segment 511 and the second hook segment 512 are respectively hung on the vertical part of the first swing arm 41 and the vertical part of the second swing arm 42.

[0060] Further, as a preferred embodiment, the first swing arm 41 and the second swing arm 42 each have a vertical part capable of swinging in the front-back direction in a non-horizontal plane, and the first hook segment 511 and the second hook segment 512 are respectively hung on the vertical part of the first swing arm 41 and the vertical part of the second swing arm 42.

[0061] Further, as a preferred embodiment, the pressing rail 3 is pressed on the auxiliary wheel or the corresponding anti-jumping hook of the auxiliary wheel. For example, in the embodiment, the pressing rail 3 is pressed on the corresponding anti-jumping hook of the left auxiliary wheel S102L. Figure 1

[0062] The above is only a preferred embodiment of the application, and does not limit the implementation and protection scope of the application.

[0063] The application also has the following implementation on the basis of the above:

[0064] In a further embodiment of the application, a curved guide rail safety system is also provided, which comprises two symmetrically arranged curved guide rail safety devices as described above.

[0065] In a further embodiment of the application, the two symmetrically arranged curved guide rail safety devices of the curved guide rail safety system are integrally connected by the two symmetrically arranged first torsion bar springs and / or the two symmetrically arranged second torsion bar springs.

[0066] In the embodiment, although only the embodiment applied to the upper curved position is shown in the figure, the application can obviously be correspondingly applied to the lower curved position.

[0067] In the embodiment, although only the embodiment in which the pressing rail 3 is pressed on the anti-jumping hook is shown in the figure, the application can obviously correspondingly press the pressing rail on the auxiliary wheel.

[0068] ​The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. Those skilled in the art should be able to understand that any equivalent substitutions and obvious changes made according to the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A curved rail safety device, characterized in that, The bending rail safety device comprises: a first guide rail for guiding a main wheel, a second guide rail for guiding a secondary wheel, a pressing rail above or below the second guide rail; and a first swing arm, an upper end of the first swing arm being rotatably connected to a front side of the pressing rail, a lower end of the first swing arm being rotatably connected to a truss; a second swing arm, an upper end of the second swing arm being rotatably connected to a rear side of the pressing rail, a lower end of the second swing arm being rotatably connected to the truss; at least one torsion spring, the torsion spring comprising: a hook segment hung on the first swing arm and / or the second swing arm, a torsion segment connected to the hook segment, wherein the hook segment is hung on the first swing arm and / or the second swing arm from top to bottom to provide downward pressure to the first swing arm and / or the second swing arm, and the hook segment is allowed to slide along the first swing arm and / or the second swing arm, and the other end of the torsion segment relative to the hook segment is fixed to the truss; and a near-end limiting block is arranged below the pressing rail.

2. The curved rail safety device of claim 1, wherein, The at least one torsion spring comprises a first torsion spring and a second torsion spring. The first torsion spring comprises: a first hook segment hung on the first swing arm, a first torsion segment connected to the first hook segment, wherein the first hook segment is hung on the first swing arm from top to bottom to provide downward pressure to the first swing arm, and the first hook segment is allowed to slide along the first swing arm, and the other end of the first torsion segment relative to the first hook segment is fixed to the truss. The second torsion spring comprises: a second hook segment hung on the second swing arm, a second torsion segment connected to the second hook segment, wherein the second hook segment is hung on the second swing arm from top to bottom to provide downward pressure to the second swing arm, and the second hook segment is allowed to slide along the second swing arm, and the other end of the second torsion segment relative to the second hook segment is fixed to the truss.

3. The curved rail safety device of claim 1, wherein, A monitor is arranged above the pressing rail, and a far-end limiting block is arranged above the monitor.

4. The curved rail safety device of claim 1, wherein, One end of the pressing rail is hingedly connected to one end of the first swing arm through a first hinge, and the other end of the first swing arm is hingedly connected to the truss through a second hinge.

5. The guard for a curved track as defined in claim 4, wherein, The other end of the pressing rail is hingedly connected to one end of the second swing arm through a third hinge, and the other end of the second swing arm is hingedly connected to the truss through a fourth hinge.

6. The curved rail safety device of claim 2, wherein, Each of the first torsion segment and the first hook segment, and each of the second torsion segment and the second hook segment has an initial rotation angle for applying an initial torque.

7. The curved rail safety device of claim 1, wherein, The pressing rail, the first swing arm, the second swing arm and the truss form a four-bar linkage mechanism.

8. The guard for curved guide ways according to claim 2, characterized in that, Each of the first swing arm and the second swing arm has a vertical portion capable of swinging in the front-rear direction in a non-horizontal plane, and the first hook segment and the second hook segment are hung on the vertical portion of the first swing arm and the vertical portion of the second swing arm respectively.

9. The curved rail safety device of claim 1, wherein, Each of the first swing arm and the second swing arm is in the shape of "C", "H” or "Z”.

10. The guard for curved guide ways according to claim 1, characterized in that, The pressing rail is arranged on the secondary wheel or a corresponding anti-jumping hook of the secondary wheel.

11. A curved rail safety system characterized by, The bending rail safety device comprises two symmetrically arranged bending rail safety devices according to any one of claims 2, 6 and 8.

12. The fall arrest system of claim 11, wherein, In the two symmetrically arranged bending rail safety devices, the two symmetrically arranged first torsion bar springs and / or the two symmetrically arranged second torsion bar springs are integrally connected.

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