A step structure for spiral escalator

Abstract

The present invention provides a step structure for a spiral escalator, wherein the step body comprises a riser and a tread fixed on a support frame; the tread is a fan-shaped structure, and the tread is composed of a group of tread teeth with the same center and different arc radii arranged in sequence from the inner circle of the tread to the outer circle of the tread. The riser is composed of a group of riser teeth arranged in sequence from the inner circle of the riser to the outer circle of the riser and arranged in a vertical direction, and the riser teeth and the tread teeth are staggered and correspondingly meshed. An L-shaped anti-jump hook and a limiting mechanism are fixedly connected to the support frame. The L-shaped anti-jump hook design ensures that the step is limited by the anti-jump rail in the ladder path operation area between the spiral section and the horizontal section to prevent a single step from jumping up. The design of the step limiting mechanism can prevent a single step or multiple steps from jumping up. The design of the present invention ensures that the step runs horizontally and stably in the ladder path system of the spiral escalator.

Description

Technical Field

[0001] The invention relates to the technical field of escalators, in particular to a step structure for a spiral escalator. Background Art

[0002] Escalators are very common in various public places and are widely used. With the development of technology, spiral escalators can ensure higher passenger transport capacity than linear escalators while saving building space. They have strong use value, and spiral escalators are perfectly integrated with buildings and are beautiful.

[0003] Since the running track of the steps of a spiral escalator is to rise along an arc line and there is movement in three directions, ensuring that the spiral escalator can run normally and smoothly is one of the technical problems that need to be solved urgently. Summary of the invention

[0004] In order to ensure that the spiral escalator can run normally and smoothly, the present invention introduces a step structure for the spiral escalator.

[0005] A step structure for a spiral escalator includes a step body, the step body includes two support frames, and the two support frames are respectively located at the inner circle and the outer circle of the step body; step rollers are respectively fixed at the lower part of the two support frames, and the step rollers are arranged to cooperate with the follower guide rails for operation;

[0006] The step body includes a riser and a tread fixed on two support frames;

[0007] The tread is a fan-shaped structure, consisting of a group of tread teeth with the same center and different arc radii arranged in sequence from the inner circle to the outer circle of the tread;

[0008] The arc radius of the tread teeth gradually increases from the inner circle of the tread to the outer circle of the tread, and the arc length of the tread teeth gradually increases from the inner circle of the tread to the outer circle of the tread;

[0009] The centers of the arc radius of the inner circle edge of the tread and the arc radius of the outer circle edge of the tread do not coincide with the center of the arc radius of the tread teeth.

[0010] Furthermore, the riser surface is composed of a group of riser surface teeth arranged in sequence from the riser surface inner circle to the riser surface outer circle along the vertical direction, and the riser surface teeth are staggered and correspondingly meshed with the tread surface teeth;

[0011] The height of the outer circle of the riser is greater than the height of the inner circle of the riser, and the height of the riser teeth gradually increases from the inner circle of the riser to the outer circle of the riser.

[0012] Furthermore, the cross section of each riser tooth in the vertical direction is an arc-shaped structure, and each riser tooth includes an inner arc radius and a corresponding outer arc radius. Furthermore, the inner arc radius of the riser tooth gradually increases from the inner circle of the riser to the outer circle of the riser;

[0013] The outer arc radius of the riser teeth gradually increases from the inner circle of the riser to the outer circle of the riser.

[0014] Furthermore, the upper part of each support frame of the step body is respectively provided with a step shaft fixing seat and a step shaft fixing mechanism for fixing and connecting the step shaft assembly;

[0015] The step fixing mechanism has two straight segments and an arc segment connected between the straight segments;

[0016] The two straight sections are respectively fixed on the step fixing seats through connecting components.

[0017] Furthermore, the axis line of the step shaft fixing seat is parallel to the tread.

[0018] Furthermore, each support frame of the step body is fixedly connected to the corresponding step roller via a support shaft.

[0019] Furthermore, L-shaped anti-jumping hooks are fixedly connected to the support shafts of the support frames of the step body, and the L-shaped anti-jumping hooks on the two support frames are arranged back to back to each other.

[0020] Furthermore, a limiting mechanism for limiting the jumping of the next step structure is also provided at the lower part of each support frame of the step body;

[0021] The beneficial technical effects of the present invention are:

[0022] The step anti-jump design of the present invention includes an L-shaped anti-jump hook and an anti-jump rail to ensure that the step is limited by the anti-jump rail in the stairway running area between the spiral section and the horizontal section to prevent a single step from jumping up. The design of the step limiting mechanism can prevent a single step or multiple steps from jumping up; the center of the inner and outer edges of the tread do not coincide with the center of the tread teeth to ensure that the step fits better with the apron plate and ensures a proper gap between the step tread and the apron plate; the tread teeth and the riser teeth mesh with each other on the running track. The design of the present invention ensures that the steps run horizontally and stably in the spiral escalator stairway system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a step structure in the left-hand direction for a spiral escalator of the present invention;

[0024] Figure 2 A schematic side view of the overall structure of a step structure for a spiral escalator in the left-hand direction according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of a riser in a left-hand direction of a step structure for a spiral escalator of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a kick plate tooth in a left-hand direction of a step structure for a spiral escalator of the present invention;

[0027] Figure 5 It is a structural schematic diagram of a tread in a left-hand direction of a step structure for a spiral escalator of the present invention;

[0028] Figure 6 It is a schematic rear side view of a step structure in a left-hand direction for a spiral escalator of the present invention;

[0029] Figure 7 It is a schematic diagram of the overall structure of the steps of a spiral escalator running on a guide rail of the present invention;

[0030] Figure 8 A schematic diagram of an L-shaped anti-jump hook and an anti-jump rail for a spiral escalator according to the present invention;

[0031] Fig. 9 A schematic diagram of a switch plate assembly and a compression spring assembly of a spiral escalator according to the present invention;

[0032] Fig.10 It is a schematic diagram of the effect of a step limiting mechanism of a spiral escalator on the next step of the present invention;

[0033] in,

[0034] 1. Step body; 2. Step roller; 3. Step shaft fixing seat; 4. Limiting mechanism; 5. L-shaped anti-jump hook; 6. Short shaft and nut assembly; 7. Step shaft fixing mechanism; 8. Bolt and nut assembly; 9. Tread; 10. Riser; 11. Locking wire screw sleeve; 12. Follow-up guide rail; 15. Step shaft assembly; 18. Anti-jump pressure rail; 19. Bolt and nut assembly; 20. Switch plate assembly; 21. Compression spring assembly; 22. Support frame. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0038] See also Figure 1-10 The present invention also provides a step structure for a spiral escalator, comprising a step body (1), the step body (1) comprising two support frames (22), the two support frames (22) being respectively located at the inner ring and the outer ring of the step body; step rollers (2) are respectively fixed at the lower parts of the two support frames (22), and the step rollers (2) are arranged to cooperate with the follower guide rail (12) for operation;

[0039] The step body comprises a riser (10) and a tread (9) fixed on two support frames (22);

[0040] The tread (9) is a fan-shaped structure, and a group of circles with the same center and arc radius T are arranged in sequence from the inner circle of the tread to the outer circle of the tread. i Different tread tooth compositions;

[0041] The arc radius of the tread teeth gradually increases from the inner circle of the tread to the outer circle of the tread, and the arc length of the tread teeth gradually increases from the inner circle of the tread to the outer circle of the tread;

[0042] The arc radius T of the inner edge of the tread (9) in and the arc radius T of the outer edge of the tread (9) out The center of the circle is the same as the radius T of the tooth arc of the tread (9) i The centers of the circles do not overlap, so that the tread (9) can better fit with the apron plate, ensuring a proper gap between the step tread (9) and the apron plate.

[0043] The tread (9) is used for passengers to stand.

[0044] Furthermore,

[0045] The riser (10) is composed of a group of riser teeth arranged in sequence from the riser inner circle to the riser outer circle in the vertical direction, and the riser teeth are meshed with the tread teeth in a staggered and corresponding manner;

[0046] The height of the outer circle of the riser is greater than the height of the inner circle of the riser, and the height of the riser teeth gradually increases from the inner circle of the riser to the outer circle of the riser.

[0047] Furthermore, the cross section of each riser tooth in the vertical direction is an arc-shaped structure, and each riser tooth includes an inner arc radius r i And the corresponding outer arc radius R i ; Furthermore, the inner arc radius r of the riser tooth i It gradually increases from the inner circle of the riser to the outer circle of the riser;

[0048] The outer arc radius R of the riser toothi It gradually increases from the inner circle of the riser to the outer circle of the riser.

[0049] Furthermore, the upper portion of the rear end of each support frame (22) of the step body (1) is respectively provided with a step shaft fixing seat (3) and a step shaft fixing mechanism (7) for fixing and connecting the step shaft assembly (15);

[0050] The step fixing mechanism (7) has two straight segments and an arc segment connected between the straight segments;

[0051] The two straight sections are respectively fixed on the step fixing seat (3) through connecting components.

[0052] The step shaft fixing seat (3) and the step shaft fixing mechanism (7) are arranged below the tread (9).

[0053] Furthermore, the axis line of the step shaft fixing seat (3) is parallel to the tread (9);

[0054] The two straight sections are respectively fixed on a locking wire screw sleeve (11) embedded in the step fixing seat (3) by means of a connection method of a bolt and a nut assembly (19).

[0055] The step shaft fixing seat (3) and the step shaft fixing mechanism (7) are used in combination to fix the step shaft assembly (15), and the locking wire screw sleeve (11) is used to fix the step shaft fixing mechanism (7).

[0056] Furthermore, each support frame (22) of the step body is fixedly connected to the corresponding step roller (2) via a support shaft.

[0057] Furthermore, L-shaped anti-jump hooks (5) are fixedly connected to the support shafts of the support frames (22) of the step body (1), and the L-shaped anti-jump hooks (5) on the two support frames (22) are arranged to face away from each other.

[0058] Furthermore, a limiting mechanism (4) for limiting the jumping of the next step structure is also provided at the lower part of each support frame (22) of the step body (1);

[0059] An escalator constructed using a step structure for a spiral escalator according to the present invention;

[0060] Each support frame (22) of the step body is fixedly connected to a corresponding step roller (2) via a support shaft;

[0061] The support shafts of the support frames (22) of the step body (1) are respectively fixedly connected with L-shaped anti-jump hooks (5), and the L-shaped anti-jump hooks (5) on the two support frames (22) are arranged to face away from each other;

[0062] The L-shaped anti-jump hook (5) comprises a fixing section fixed on the supporting shaft and a triggering section for performing anti-jump triggering;

[0063] An anti-jumping pressure rail (18) is also arranged below the anti-jumping support frame;

[0064] The anti-jump pressure rail (18) is arranged between the L-shaped anti-jump hook (5) and the step roller (12) of the same support frame (22), and the anti-jump pressure rail (18) passes above the triggering section of the L-shaped anti-jump hook (5);

[0065] A compression spring assembly (21) and a safety switch plate assembly (20) are installed on the lower surface of the anti-jump pressure rail (18).

[0066] The fixed section of the L-shaped anti-jump hook (5) is fixed on the support shaft of the support frame (22) via a short shaft and a nut assembly (6).

[0067] The upper part of each support frame (22) of the step body (1) is respectively provided with a step shaft fixing seat (3) and a step shaft fixing mechanism (7) for fixing and connecting the step shaft assembly (15).

[0068] The step fixing mechanism (7) comprises two straight segments and an arc segment connected between the straight segments, and the two straight segments are respectively fixed on the step fixing seat (3) through connecting components;

[0069] The inner ring and outer ring of the spiral escalator are respectively provided with a driving pressure rail (13) and a driving guide pressure rail (14) for restricting the operation of the step shaft roller on the step shaft assembly (15).

[0070] Through the anti-jump design of the present invention, when the step runs into the ladder running area between the spiral section and the horizontal section, the anti-jump rail (18) of the curved section limits the L-shaped anti-jump hook (5) on the step body (1). When the step is lifted abnormally, the L-shaped anti-jump hook (5) will touch the anti-jump rail (18), triggering the corresponding safety switch plate assembly (20), and the safety switch plate assembly (20) will send a stop signal to the host computer, thereby controlling the escalator to stop, thereby preventing the step from jumping up and protecting the escalator and passengers. The anti-jump rail (18) is provided with a compression spring assembly 21, which can be used to prevent malfunction and reset after the switch is actuated.

[0071] When two adjacent steps are running in the running area of ​​the spiral staircase, the limiting mechanism (4) below the tread (9) of the previous step goes deep into the back groove of the next step (that is, the next step) to limit it. When the step is lifted abnormally, the front and rear adjacent steps and the remaining steps can play a role in hindering each other from lifting.

[0072] The step structure of the spiral escalator of the present invention is used for the purpose of horizontally and stably operating the escalator system.

[0073] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A step structure for a spiral escalator, characterized in that: It comprises a step body, the step body comprises two support frames, the two support frames are respectively located at the inner ring and the outer ring of the step body; step rollers are respectively fixed at the lower parts of the two support frames, and the step rollers are arranged to cooperate with the follower guide rails for operation; The step body comprises a riser and a tread fixed on the two support frames; the tread is a fan-shaped structure, consisting of a group of tread teeth with the same center and different arc radii arranged in sequence from the tread inner circle to the tread outer circle; The arc radius of the tread teeth gradually increases from the tread inner circle to the tread outer circle, and the arc length of the tread teeth gradually increases from the tread inner circle to the tread outer circle; The centers of the arc radius of the inner circle edge of the tread and the arc radius of the outer circle edge of the tread do not coincide with the center of the arc radius of the tread teeth; The riser surface is composed of a group of riser surface teeth arranged in sequence from the riser surface inner circle to the riser surface outer circle and arranged in the vertical direction, and the riser surface teeth are staggered and correspondingly meshed with the tread surface teeth; The height of the outer ring of the riser is greater than the height of the inner ring of the riser, and the height of the riser teeth gradually increases from the inner ring of the riser to the outer ring of the riser; Each of the support frames of the step body is fixedly connected to the corresponding step roller via a support shaft; The support shafts of the support frame of the step body are also fixedly connected with L-shaped anti-jump hooks; The L-shaped anti-jump hook includes a fixed section fixed on the support shaft and a trigger section for anti-jump triggering. An anti-jump pressure rail is provided between the L-shaped anti-jump hook and the step roller of the same support frame, and the anti-jump pressure rail passes over the trigger section of the L-shaped anti-jump hook.

2. A step structure for a spiral escalator as claimed in claim 1, characterized in that: The cross section of each of the riser teeth in the vertical direction is an arc-shaped structure, and each of the riser teeth includes an inner arc radius and a corresponding outer arc radius.

3. A step structure for a spiral escalator as claimed in claim 2, characterized in that: The inner arc radius of the riser teeth gradually increases from the inner circle of the riser to the outer circle of the riser; The outer arc radius of the riser tooth gradually increases from the riser inner circle to the riser outer circle.

4. A step structure for a spiral escalator as claimed in claim 1, characterized in that: The upper part of each support frame of the step body is respectively provided with a step shaft fixing seat and a step shaft fixing mechanism for fixing and connecting the step shaft assembly; The step fixing mechanism has two straight segments and an arc segment connected between the straight segments; The two straight sections are respectively fixed on the step fixing seat through connecting components.

5. A step structure for a spiral escalator as claimed in claim 4, characterized in that: The axis line of the step shaft fixing seat is parallel to the tread surface.

6. The step structure for a spiral escalator according to claim 1, characterized in that: The L-shaped anti-jump hooks on the two support frames are arranged back to back with each other.

7. The step structure for a spiral escalator according to claim 1, characterized in that: The lower part of each support frame of the step body is also provided with a limiting mechanism for limiting the jumping of the next step structure.

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