Bendy rail safety device

Abstract

The application discloses a curved guide rail safety device, which comprises a first guide rail for guiding a main wheel, a second guide rail for guiding a secondary wheel, a press rail above or below the second guide rail, a first rod, a second rod, a near-end limiting block below the press rail, a monitor above the press rail, and a far-end limiting block above the monitor. The first rod comprises a first rod swing arm section rotatably connected with the press rail, a first rod torsion bar section connected with the first rod swing arm section, and a first rod fixed section connected with the first rod torsion bar section. The second rod comprises a second rod swing arm section rotatably connected with the press rail, a second rod torsion bar section connected with the second rod swing arm section, and a second rod fixed section connected with the second rod torsion bar section. The curved section gradient safety monitoring function is realized. When the secondary wheel is abnormally lifted to exceed a threshold value in the curved section, the monitor is triggered, a signal is sent to a control system, and the 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 in the height direction between adjacent steps, and when the step kickboard is pressed by an object such as a shoe and generates 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 tooth, and there is a risk of colliding with the comb tooth. The escalator equipped with the curved guide rail safety device can effectively avoid the problem of abnormal lifting of the step 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 step 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, and a pressure rail located above or below the second guide rail; and

[0007] A first lever, comprising: a first lever swing arm section rotatably connected with the pressure rail, a first lever torsion bar section connected with the first lever swing arm section, and a first lever fixed section connected with the first lever torsion bar section; and

[0008] A second lever, comprising: a second lever swing arm section rotatably connected with the pressure rail, a second lever torsion bar section connected with the second lever swing arm section, and a second lever fixed section connected with the second lever torsion bar section; and

[0009] The lower side of the pressing rail is provided with a proximal end limiting block, the upper side of the pressing rail is provided with a monitor, and the upper side of the monitor is provided with a distal end limiting block.

[0010] The curved rail safety device, wherein the pressing rail is pressed on the anti-jumping hook near the auxiliary wheel.

[0011] The curved rail safety device, wherein the pressing rail is pressed on the auxiliary wheel, and the pressing rail is located above the second rail.

[0012] The curved rail safety device, wherein the pressing rail is pressed on the anti-jumping hook near the auxiliary wheel, and the pressing rail is located below the second rail.

[0013] The curved rail safety device, wherein one end of the pressing rail is hinged to one end of the first lever swing arm segment through a first hinge, and the other end of the first lever swing arm segment is hinged to the truss through a second hinge.

[0014] The curved rail safety device, wherein the other end of the pressing rail is hinged to one end of the second lever swing arm segment through a third hinge, and the other end of the second lever swing arm segment is hinged to the truss through a fourth hinge.

[0015] The curved rail safety device, wherein both the first lever torsion rod segment and the first lever swing arm segment, and the second lever torsion rod segment and the second lever swing arm segment have an initial rotation angle for applying an initial torque.

[0016] The curved rail safety device, wherein both the first lever fixed segment and the second lever fixed segment are fixed to the truss.

[0017] The curved rail safety device, wherein both the first lever and the second lever constitute a torsion rod spring.

[0018] The curved rail safety device, wherein both the first lever and the second lever are of an integrated structure.

[0019] The curved rail safety device, wherein the pressing rail, the first lever swing arm segment, the second lever swing arm segment, and the truss constitute a four-bar linkage mechanism.

[0020] A curved rail safety device, comprising: a left first rail for guiding a left main wheel, a right first rail for guiding a right main wheel, a left second rail for guiding a left auxiliary wheel, a left pressing rail located above the left second rail, a right second rail for guiding a right auxiliary wheel, and a right pressing rail located above the right second rail; and

[0021] The first rod comprises: a first rod left swing arm section rotatably connected with the left side pressure rail, a first rod left torsion bar section connected with the first rod left swing arm section, a first rod right swing arm section rotatably connected with the right side pressure rail, a first rod right torsion bar section connected with the first rod right swing arm section, and a first rod middle fixed section connecting the first rod left torsion bar section and the first rod right torsion bar section; and

[0022] The second rod comprises: a second rod left swing arm section rotatably connected with the left side pressure rail, a second rod left torsion bar section connected with the second rod left swing arm section, a second rod right swing arm section rotatably connected with the right side pressure rail, a second rod right torsion bar section connected with the second rod right swing arm section, and a second rod middle fixed section connecting the second rod left torsion bar section and the second rod right torsion bar section; and

[0023] The lower side of the pressure rail is provided with a proximal end limiting block, the upper side of the pressure rail is provided with a monitor, and the upper side of the monitor is provided with a distal end limiting block.

[0024] The curved guide rail safety device, wherein the first rod left swing arm section, the first rod left torsion bar section and the first rod middle fixed section constitute a first rod left torsion bar spring.

[0025] The first rod right swing arm section, the first rod right torsion bar section and the first rod middle fixed section constitute a first rod right torsion bar spring.

[0026] The curved guide rail safety device, wherein the second rod left swing arm section, the second rod left torsion bar section and the second rod middle fixed section constitute a second rod left torsion bar spring.

[0027] The second rod right swing arm section, the second rod right torsion bar section and the second rod middle fixed section constitute a second rod right torsion bar spring.

[0028] The present application has the following advantages compared with the prior art:

[0029] (1) The present application has a curved section step safety monitoring function. When the step auxiliary wheel is abnormally lifted in the curved section and exceeds a threshold value, the monitor is triggered, and a signal is sent to the control system to stop the escalator, ensuring safety.

[0030] (2) The present application has a curved section step anti-lifting limiting function. When the step auxiliary wheel is abnormally lifted in the curved section and exceeds another threshold value, the step is prevented from being further lifted to cause the step to collide with the comb teeth and other dangers.

[0031] (3) The bending guide rail safety device of the present application is a single degree of freedom system, the movement trajectory of the rail pressing is determined, and the mechanical parameters of the step triggering the bending guide rail safety device at each position of the bending section are more consistent.

[0032] (4) The torsion bar spring of the present application is integrated with the swing arm, has high integration degree, less number of parts, occupies less space, and has low cost. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the bending guide rail safety device of the present application.

[0034] In the drawings: S1, step; S101R, right main wheel; S102L, left auxiliary wheel; S102R, right auxiliary wheel; L1, left upper bending auxiliary wheel rail; R1, right upper bending auxiliary wheel rail; L2, left upper bending main wheel rail; R2, right upper bending main wheel rail; L3, left upper bending auxiliary wheel rail; R3, right upper bending auxiliary wheel rail; 4, first bar; 401, left swing arm section of the first bar; 402, right swing arm section of the first bar; 403, left torsion bar section of the first bar; 404, right torsion bar section of the first bar; 405, middle fixed section of the first bar; 5, first bar; 501, left swing arm section of the second bar; 502, right swing arm section of the second bar; 503, left torsion bar section of the second bar; 504, right torsion bar section of the second bar; 505, middle fixed section of the second bar; L6, left proximal end limiting block; R6, right proximal end limiting block; L7, left monitor; R7, right monitor; 8, truss; L9, left first hinge; L10, left second hinge; L11, left third hinge; L12, left fourth hinge; R9, right first hinge; R10, right second hinge; R11, right third hinge; R12, right fourth hinge. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the present application.

[0036] First embodiment:

[0037] Figure 1 is a schematic diagram of the bending guide rail safety device of the present application, please see Figure 1As shown, a preferred embodiment of the curved rail safety device is shown, which is suitable for escalator type equipment, wherein the escalator type equipment comprises a truss for fixing various parts of the escalator type equipment, and the escalator type equipment further comprises steps S1 to Sk, 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 the steps. In other words, each step is provided with corresponding left main wheels, left auxiliary wheels, right main wheels, and right auxiliary wheels.

[0038] In the present embodiment, only the steps S1, the left main wheels S101L, the right main wheels S101R, the left auxiliary wheels S102L, and the right auxiliary wheels S102R, which are not shown in the figure, are taken as examples for description. Figure 1

[0039] As a preferred embodiment, the curved rail safety device of the present embodiment comprises a first rod member 4, which is integrally formed, and the first rod member 4 comprises a first rod member left side swing arm section 401, a first rod member right side swing arm section 402, a first rod member left side torsion bar section 403, a first rod member right side torsion bar section 404, and a first rod member middle fixed section 405. The first rod member left side swing arm section 401, the first rod member left side torsion bar section 403, the first rod member middle fixed section 405, the first rod member right side torsion bar section 404, and the first rod member right side swing arm section 402 are sequentially connected.

[0040] Preferably, the first rod member left side swing arm section 401 is perpendicular to the first rod member left side torsion bar section 403, and the first rod member right side swing arm section 402 is perpendicular to the first rod member right side torsion bar section 404.

[0041] The first rod member middle fixed section 405 is fixed to the truss, and the two sides of the first rod member left side torsion bar section 403 can relatively torsionally deform to form a torsion bar spring, and the two sides of the first rod member right side torsion bar section 404 can also relatively torsionally deform to form another torsion bar spring.

[0042] As a preferred embodiment, the curved rail safety device of the present embodiment comprises a second rod member 5, which is integrally formed, and the second rod member 5 comprises a second rod member left side swing arm section 501, a second rod member right side swing arm section 502, a second rod member left side torsion bar section 503, a second rod member right side torsion bar section 504, and a second rod member middle fixed section 505. The second rod member left side swing arm section 501, the second rod member left side torsion bar section 503, the second rod member middle fixed section 505, the second rod member right side torsion bar section 504, and the second rod member right side swing arm section 502 are sequentially connected.

[0043] ​Preferably, the second rod left side swing arm section 501 is perpendicular to the second rod left side torsion bar section 503, and the second rod right side swing arm section 502 is perpendicular to the second rod right side torsion bar section 504.

[0044] The second rod middle fixed section 505 is fixed to the truss, and the two sides of the second rod left side torsion bar section 503 can relatively twist to form a torsion bar spring, and the two sides of the second rod right side torsion bar section 504 can also relatively twist to form another torsion bar spring.

[0045] As a preferred embodiment, the two ends of the left side upper curved auxiliary wheel pressing rail L1 are respectively rotatably connected to one end of the first rod left side swing arm section 401 and the second rod left side swing arm section 501 through the left side first hinge L9 and the left side third hinge L11; the other end of the first rod left side swing arm section 401 is rotatably connected to the truss through the left side second hinge L10, and the other end of the second rod left side swing arm section 501 is rotatably connected to the truss through the left side fourth hinge L12; thus, the left side upper curved auxiliary wheel pressing rail L1, the first rod left side swing arm section 401, the second rod left side swing arm section 501, and the truss form a four-bar linkage mechanism.

[0046] The two ends of the right side upper curved auxiliary wheel pressing rail R1 are respectively rotatably connected to one end of the first rod right side swing arm section 402 and the second rod right side swing arm section 502 through the right side first hinge R9 and the right side third hinge R11; the other end of the first rod right side swing arm section 402 is rotatably connected to the truss through the right side second hinge R10, and the other end of the second rod right side swing arm section 502 is rotatably connected to the truss through the right side fourth hinge R12; thus, the right side upper curved auxiliary wheel pressing rail R1, the first rod right side swing arm section 402, the second rod right side swing arm section 502, and the truss form a four-bar linkage mechanism.

[0047] Further, as a preferred embodiment, the curved guide rail safety device of the present embodiment further comprises a left side proximal limit block L6, a left side monitor L7, and a left side distal limit block. The left side proximal limit block L6 is located below the left side upper curved auxiliary wheel pressing rail L1, the left side monitor L7 is located above the left side upper curved auxiliary wheel pressing rail L1, and the left side distal limit block is located above the left side monitor L7.

[0048] Further, as a preferred embodiment, the curved guide rail safety device of the present embodiment further comprises a right side proximal limit block R6, a right side monitor R7, and a right side distal limit block. The right side proximal limit block R6 is located below the right side upper curved auxiliary wheel pressing rail R1, the right side monitor R7 is located above the right side upper curved auxiliary wheel pressing rail R1, and the right side distal limit block is located above the right side monitor R7.

[0049] It should be particularly noted that the above "above" is used to describe the relative height relationship, and is not limited to the specific position relationship of "directly above".

[0050] In the ladder Sk (e.g.) Figure 1 When the step S1 shown in the figure runs to the upper curved section of the escalator, the left main wheel Sk01L and the right main wheel Sk01R run on the left upper curved main wheel guide rail L2 and the right upper curved guide rail R2 respectively, and the left auxiliary wheel Sk02L and the right auxiliary wheel Sk02R run on the left auxiliary wheel guide rail L3 and the right auxiliary wheel guide rail R3 respectively.

[0051] The left torsion bar segment 403 of the first member has an initial rotation angle relative to the left swing arm segment 401 of the first member to apply an initial torque; the left torsion bar segment 503 of the second member has an initial rotation angle relative to the left swing arm segment 501 of the second member to apply an initial torque; the aforementioned initial torque causes the left upper curved auxiliary wheel pressure rail L1 to press against the left proximal limiting block L6; the left proximal limiting block L6 is used to limit the distance between the left upper curved auxiliary wheel pressure rail L1 and the left auxiliary wheel Sk02L, which is the left first threshold displacement.

[0052] The right torsion bar segment 404 of the first member has an initial rotation angle relative to the right swing arm segment 402 of the first member to apply an initial torque; the right torsion bar segment 504 of the second member has an initial angle relative to the right swing arm segment 502 of the second member to apply an initial torque; the aforementioned initial torque causes the right upper curved auxiliary wheel pressure rail R1 to press against the right proximal limit block R6; the right proximal limit block R6 is used to limit the distance between the right upper curved auxiliary wheel pressure rail R1 and the right auxiliary wheel Sk02R, which is the right first threshold displacement.

[0053] When the left auxiliary wheel Sk02L abnormally rises and exceeds the first threshold displacement on the left, the left upper curved auxiliary wheel pressure rail L1 is lifted, and the left swing arm section 401 of the first member and the left swing arm section 501 of the second member swing synchronously. When the lifting amount reaches the second threshold displacement on the left, the left monitor L7 detects the abnormal signal and sends the signal to the escalator control system. The control system brakes the escalator to stop the escalator. When the lifting amount reaches the third threshold displacement on the left, the left upper curved auxiliary wheel pressure rail L1 contacts the left far end limit block and stops rising.

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

[0055] When the right side auxiliary wheel Sk02R is abnormally lifted and exceeds the right side first threshold displacement, the right side upper curved auxiliary wheel pressure rail R1 is lifted, and the first lever right side swing arm section 402 and the second lever right side swing arm section 502 swing synchronously; when the lifting amount reaches the right side second threshold displacement, the right side monitor R7 monitors the abnormal signal and sends the signal to the escalator control system, and the control system controls the escalator brake to brake to stop the escalator; when the lifting amount reaches the right side third threshold displacement, the right side upper curved auxiliary wheel pressure rail R1 contacts the right side distal end limiting block to stop being continuously lifted upward.

[0056] Corresponding to the right side first threshold displacement, the right side second threshold displacement, and the right side third threshold displacement, there are the right side first threshold lifting force, the right side second threshold lifting force, and the right side third threshold lifting force.

[0057] In the embodiment, the auxiliary rotating hinge added to increase the guiding accuracy of the first lever 4 or the second lever 5 can also be provided with two coaxial rotating hinges at the left side first hinge L9 position when the mechanism kinematics principle is consistent with the application.

[0058] The hinge in the embodiment is used to provide one degree of freedom of rotation, and in actual application, there can be various specific structures or other alternative structures.

[0059] In the embodiment, the upper curved main wheel guide rail, the upper curved auxiliary wheel guide rail, and the upper curved auxiliary wheel pressure rail can be replaced by the lower curved main wheel guide rail, the lower curved auxiliary wheel guide rail, and the lower curved auxiliary wheel pressure rail, respectively. In the case of being replaced by the lower curved main wheel guide rail, the lower curved auxiliary wheel guide rail, and the lower curved auxiliary wheel pressure rail, the curved guide rail safety device can be applied to a lower curved position.

[0060] Second embodiment:

[0061] The curved guide rail safety device in the embodiment comprises: a first guide rail for guiding the main wheel, a second guide rail for guiding the auxiliary wheel, and a pressure rail located above the second guide rail; a first lever comprising: a first lever swing arm section rotatably connected with the pressure rail, a first lever torsion bar section connected with the first lever swing arm section, and a first lever fixed section connected with the first lever torsion bar section; a second lever comprising: a second lever swing arm section rotatably connected with the pressure rail, a second lever torsion bar section connected with the second lever swing arm section, and a second lever fixed section connected with the second lever torsion bar section; a proximal end limiting block is arranged below the pressure rail, a monitor is arranged above the pressure rail, and a distal end limiting block is arranged above the monitor.

[0062] As a preferred embodiment, one end of the pressure rail is hinged to one end of the first lever swing arm section through the first hinge, and the other end of the first lever swing arm section is hinged to the truss through the second hinge.

[0063] As a preferred embodiment, the other end of the pressure rail is hinged to one end of the second lever swing arm segment through a third hinge, and the other end of the second lever swing arm segment is hinged to the truss through a fourth hinge.

[0064] As a preferred embodiment, each of the first lever torsion bar segment and the first lever swing arm segment, and the second lever torsion bar segment and the second lever swing arm segment has an initial rotation angle for applying an initial torque.

[0065] As a preferred embodiment, the first lever fixed segment and the second lever fixed segment are both fixed to the truss.

[0066] As a preferred embodiment, the first lever and the second lever both constitute a torsion bar spring.

[0067] As a preferred embodiment, the first lever and the second lever are both of an integrated structure.

[0068] As a preferred embodiment, the pressure rail, the first lever swing arm segment, the second lever swing arm segment, and the truss constitute a four-bar linkage mechanism.

[0069] The second embodiment is basically similar to the first embodiment, the first guide rail is similar to the left upper curved main wheel guide rail L2 in the first embodiment, the second guide rail is similar to the left auxiliary wheel guide rail L3 in the first embodiment, and the pressure rail is similar to the left upper curved auxiliary wheel pressure rail L1 in the first embodiment.

[0070] The difference between the second embodiment and the first embodiment is mainly that the device of the second embodiment only acts on one side of the ladder, while the device of the first embodiment simultaneously acts on both sides of the ladder.

[0071] The third embodiment:

[0072] The third embodiment, which is not shown, is basically similar to the first embodiment, and the difference is that a jump-preventing hook is arranged near the auxiliary wheel in the first embodiment, the pressure rails for limiting the auxiliary wheel in the first embodiment are all replaced by pressure rails for limiting the jump-preventing hook, and the relative relationship between the auxiliary wheel pressure rail and the auxiliary wheel in the first embodiment is replaced by the relative relationship between the jump-preventing hook pressure rail and the jump-preventing hook.

[0073] It should be noted that the specific position of the pressure rail can vary according to actual conditions. For example, when the pressure rail is arranged on the jump-preventing hook, the pressure rail is generally located below the second guide rail; when the pressure rail is arranged on the auxiliary wheel, the pressure rail is generally located above the second guide rail.

[0074] It should be particularly noted that the above-mentioned multiple embodiments can be used separately or in combination.

[0075] 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 safety device for bending guide rails, characterized in that, include: A first guide rail for guiding the main wheel, a second guide rail for guiding the auxiliary wheel, and a pressure rail located above or below the second guide rail; as well as The first member includes: a first member swing arm segment rotatably connected to the pressure rail; a first member torsion bar segment connected to the first member swing arm segment; and a first member fixing segment connected to the first member torsion bar segment; and The second member includes: a second member swing arm section rotatably connected to the pressure rail; a second member torsion bar section connected to the second member swing arm section; and a second member fixing section connected to the second member torsion bar section; and A near-end limiting block is provided below the pressure rail; Both the first and second member fixing sections are fixed to the truss; The pressure rail, the first member swing arm section, the second member swing arm section, and the truss form a four-bar linkage.

2. The bending guide rail safety device according to claim 1, characterized in that, A monitor is provided above the pressure rail, and a remote limiting block is provided above the monitor.

3. The bending guide rail safety device according to claim 1, characterized in that, One end of the pressure rail is hinged to one end of the first rod swing arm section via a first hinge, and the other end of the first rod swing arm section is hinged to the truss via a second hinge.

4. The bending guide rail safety device according to claim 3, characterized in that, The other end of the pressure rail is hinged to one end of the second rod swing arm section via a third hinge, and the other end of the second rod swing arm section is hinged to the truss via a fourth hinge.

5. The bending guide rail safety device according to claim 1, characterized in that, There is an initial rotation angle between the first torsion bar segment and the first swing arm segment, and between the second torsion bar segment and the second swing arm segment, for applying the initial torque.

6. The bending guide rail safety device according to claim 1, characterized in that, Both the first and second rods constitute torsion bar springs.

7. The bending guide rail safety device according to claim 1, characterized in that, Both the first and second rods are integral structures.

8. A safety device for bending guide rails, characterized in that, include: A left first guide rail for guiding the left main wheel, a right first guide rail for guiding the right main wheel, a left second guide rail for guiding the left auxiliary wheel, a left pressure rail located above the left second guide rail, a right second guide rail for guiding the right auxiliary wheel, and a right pressure rail located above the right second guide rail; as well as The first member includes: a left swing arm segment rotatably connected to the left pressure rail; a left torsion bar segment connected to the left swing arm segment; a right swing arm segment rotatably connected to the right pressure rail; a right torsion bar segment connected to the right swing arm segment; and a middle fixed segment connecting the left torsion bar segment and the right torsion bar segment. The second member includes: a left swing arm segment rotatably connected to the left pressure rail; a left torsion bar segment connected to the left swing arm segment; a right swing arm segment rotatably connected to the right pressure rail; a right torsion bar segment connected to the right swing arm segment; and a middle fixed segment connecting the left torsion bar segment and the right torsion bar segment. A near-end limiting block is provided below the pressure rail.

9. The bending guide rail safety device according to claim 8, characterized in that, A monitor is provided above the pressure rail, and a remote limiting block is provided above the monitor.

10. The bending guide rail safety device according to claim 8, characterized in that, The left swing arm section of the first rod, the left torsion bar section of the first rod, and the middle fixed section of the first rod constitute the left torsion bar spring of the first rod. The right swing arm section of the first member, the right torsion bar section of the first member, and the middle fixed section of the first member constitute the right torsion bar spring of the first member.

11. The bending guide rail safety device according to claim 8, characterized in that, The left swing arm section of the second member, the left torsion bar section of the second member, and the middle fixed section of the second member constitute the left torsion bar spring of the second member; The right swing arm section of the second member, the right torsion bar section of the second member, and the middle fixed section of the second member constitute the right torsion bar spring of the second member.

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