Movable escalator with foldable rollers

Abstract

The invention belongs to the technical field of climbing operation, and particularly relates to a movable escalator device with foldable rollers. The plurality of rear wheels are fixedly connected to the rear side of the lower end surface of the ladder frame; the locking plate is rotationally connected to the front end of the ladder frame; the abutting block is fixedly connected to the lower end face of the locking plate, and a notch is formed in the front side of the abutting block; the triggering mechanism is rotationally arranged on the ladder frame; the connecting rod is arranged on the trigger mechanism and located in front of the notch; the reset mechanism is mounted between the propping block and the ladder frame and is used for driving the propping block to rotate in the direction close to the connecting rod; the front wheels are arranged on the trigger mechanism; and the front supporting leg is fixedly connected to the front end of the ladder frame. The invention aims to solve the problem of inconvenience in use caused by structural defects in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of high-altitude operation technology, specifically relating to a mobile escalator with foldable rollers. Background Technology

[0002] Escalators are a type of loading and unloading ladder. They are core auxiliary equipment that connects the ground with transportation vehicles and work platforms, and are widely used in logistics warehousing, chemical transportation, ports and docks, construction sites, retail supermarkets and many other fields.

[0003] Existing common escalators are fixed installations. Some temporary "mobile escalators" or "moving walkways" have their rollers fixed at the bottom of the escalator, making it impossible to fix the escalator in place. They can only be fixed in place by someone holding them. Even the better quality escalators only have rollers with a simple braking function.

[0004] Before moving the existing escalator, the braking mechanism of multiple rollers needs to be operated to release the lock on all rollers. After moving the escalator to the destination, the braking mechanism of multiple rollers needs to be operated again to lock all rollers. The operation steps are cumbersome and inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a mobile escalator with foldable rollers to solve the problem of inconvenience caused by structural defects in the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A movable escalator with foldable rollers, comprising:

[0008] Ladder rack;

[0009] A plurality of rear wheels, wherein the plurality of said rear wheels are fixedly connected to the rear side of the lower end face of the ladder frame;

[0010] A locking plate, which is rotatably connected to the front end of the ladder frame;

[0011] A stop block is fixedly connected to the lower end face of the locking plate, and a notch is provided on the front side of the stop block;

[0012] The triggering mechanism is rotatably mounted on the ladder frame;

[0013] A connecting rod, which is mounted on the triggering mechanism and located in front of the notch;

[0014] A reset mechanism is installed between the abutment block and the ladder frame, and the reset mechanism is used to drive the abutment block to rotate towards the connecting rod;

[0015] Several front wheels, wherein several of the front wheels are mounted on a triggering mechanism;

[0016] Front support leg, which is fixedly connected to the front end of the ladder frame;

[0017] When the escalator is supported by the front wheel, the connecting rod is located in the notch, and the abutment block prevents the connecting rod from moving upward.

[0018] When the escalator is supported by the front support leg, the connecting rod disengages from the notch. At this time, the front end face of the abutment block abuts against the abutment block under the action of the reset mechanism.

[0019] Further, it also includes a crossbar fixedly connected to the ladder frame;

[0020] The crossbar is located below the locking plate.

[0021] This structural design, through the crossbar, limits the maximum downward angle of the free end of the locking plate, to prevent excessive force when stepping on the locking plate from causing the free end of the locking plate to tilt excessively downward, resulting in instability for the user.

[0022] Further, it also includes a stop provided on the reset mechanism;

[0023] The stop block is fixedly connected to the lower end of the abutment block and is located within the notch.

[0024] With this structural design, the connecting rod is blocked by the stop block when the trigger mechanism is pressed down, preventing the connecting rod from coming out from under the stop block and causing the device to fail.

[0025] Further specifying, the reset mechanism includes a tension spring;

[0026] One end of the tension spring is fixedly connected to the stop block.

[0027] This structural design uses a tension spring to provide the necessary tension for the stop block to reset.

[0028] Furthermore, the reset mechanism also includes a pull ring;

[0029] The pull ring is fixedly connected to the crossbar;

[0030] The pull ring is fixedly connected to the free end of the tension spring.

[0031] This structural design, through a pull ring, fixes the free end of the tension spring to the crossbar. The stop block, tension spring, pull ring, crossbar, and ladder frame cooperate to apply tension to the stop block. When the connecting rod is located in front of the notch (e.g., Figure 6 As shown), and rotated clockwise downwards (as shown). Figure 6 , Figure 5 and Figure 4As shown), the tension spring pulls the stop block, causing the stop block and locking plate to rotate counterclockwise, so that the connecting rod finally abuts against the front side of the stop block and the lower end of the notch (as shown). Figure 3 As shown in the diagram, the front wheels replace the front outriggers to support the ground, which, in conjunction with the rear wheels, allows the ladder frame to be moved. The structure is simple and practical.

[0032] Further specifying, the triggering mechanism includes a connecting plate and a foot block;

[0033] The connecting plate is fixedly connected to the connecting rod and is rotatably mounted on the ladder frame;

[0034] Several of the aforementioned front wheels are fixedly connected to the connecting plate;

[0035] The foot block is fixedly connected to the connecting plate.

[0036] This structural design, through the connecting plate and pedal, allows the user to press down on the pedal, causing the connecting plate, linkage, and front wheel to rotate clockwise (e.g., ...). Figure 6 , Figure 5 and Figure 4 As shown), the connecting rod is driven to engage with the front side of the abutment and the lower end of the notch, thereby causing several front wheels to support the ground (as shown). Figure 3 As shown in the figure, with several movable escalators with rear wheels, it is not necessary to operate the braking structure of multiple rollers and then release the lock of all rollers before the escalator can be moved, as is the case with existing technology. The structure is simple and practical.

[0037] Furthermore, the step block is fixedly mounted with a protruding plate;

[0038] The projection of the protruding plate in the vertical direction protrudes beyond the front end of the locking plate.

[0039] This structural design, through the protruding plate, ensures that regardless of the angle of the locking plate, the protruding plate, which is fixedly connected to the pedal, always protrudes from the front of the locking plate's top-down projection, making it convenient for the user to step on. The structure is simple and practical.

[0040] Furthermore, the step block is located on the right side of the connecting plate.

[0041] This structural design, by placing the foot pedal on the right side of the connecting plate, makes it easier for users to operate with their right foot, improving comfort and convenience.

[0042] Furthermore, a guardrail is fixedly connected to the ladder frame.

[0043] This structural design, through the handrails, can intercept and protect users when climbing the escalator and after reaching the top, preventing them from falling off the escalator. When users step on the steps and protruding plates, the handrails lift the front end of the ladder frame, making it easier for the front wheels to tip down, allowing the escalator to enter a movable state more quickly.

[0044] The invention employing the above technical solution has the following advantages:

[0045] With the cooperation of the ladder frame, rear wheels, locking plate, stop block, notch, reset mechanism, triggering mechanism, connecting rod, front wheels, and front outriggers, when the escalator needs to be moved, the triggering mechanism can cause the front wheels to flip down, replacing the front outriggers to support the ground. The connecting rod is locked in the notch, thus fixing several front wheels. At this time, with the cooperation of several front wheels and rear wheels, the operator can move the escalator without having to operate the braking structure of multiple rollers and release the locking of all rollers as in existing technologies. After the escalator is moved to the target position, the locking plate and reset mechanism can cause the front wheels to flip up and reset, and the connecting rod disengages from the notch. This prevents several front wheels from replacing the front outriggers to support the ground, and the front outriggers support the ground again, stopping the escalator from moving. Unlike existing technologies, it is not necessary to operate the braking structure of multiple rollers again and lock all rollers before fixing the escalator. At this time, the user can climb the ladder frame to work. The operation is simple and convenient. Attached Figure Description

[0046] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0047] Figure 1 This is a schematic diagram of the structure of a movable escalator with foldable rollers according to the present invention;

[0048] Figure 2 This is a cross-sectional structural schematic diagram of a movable escalator with foldable rollers according to the present invention;

[0049] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0050] Figure 4 This is a partial cross-sectional view of a movable escalator with foldable rollers according to the present invention. Figure 1 ;

[0051] Figure 5 This is a partial cross-sectional view of a movable escalator with foldable rollers according to the present invention. Figure 2 ;

[0052] Figure 6 This is a partial cross-sectional view of a movable escalator with foldable rollers according to the present invention. Figure 3 ;

[0053] Figure 7 This is a schematic diagram of the structure of a movable escalator with foldable rollers according to the present invention after removing some parts;

[0054] The symbols for the main components are explained below:

[0055] Ladder frame 11, rear wheel 12, front wheel 13, front support leg 14, anti-slip sleeve 141

[0056] 15. Center step, 16. Workbench, 17. Guardrail, 18. Kickboard, 19. Crossbar

[0057] Locking plate 21, stop block 22, notch 23, stop block 24

[0058] Pull ring 31, tension spring 32,

[0059] Connecting plate 41, step block 42, protruding plate 421, connecting rod 43. Detailed Implementation

[0060] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0061] like Figures 1 to 7 As shown, a movable escalator with foldable rollers according to the present invention includes:

[0062] Ladder 11;

[0063] Several rear wheels 12 are fixedly connected to the rear side of the lower end face of the ladder frame 11;

[0064] Locking plate 21 is rotatably connected to the front end of ladder frame 11;

[0065] A stop block 22 is fixedly connected to the lower end face of the locking plate 21, and a notch 23 is provided on the front side of the stop block 22;

[0066] A triggering mechanism is rotatably mounted on the ladder frame 11;

[0067] Link 43 is mounted on the triggering mechanism and is located in front of notch 23;

[0068] A reset mechanism is installed between the stop block 22 and the ladder frame 11. The reset mechanism is used to drive the stop block 22 to rotate towards the connecting rod 43.

[0069] Several front wheels 13 are mounted on the triggering mechanism;

[0070] Front support leg 14 is fixedly connected to the front end of ladder frame 11;

[0071] When the escalator is supported by the front wheel 13, the connecting rod 43 is located in the notch 23 and the abutment block 22 prevents the connecting rod 43 from moving upward.

[0072] When the escalator is supported by the front support leg 14, the connecting rod 43 disengages from the notch 23. At this time, the front end face of the abutment block 22 is pressed against the abutment block 22 by the action of the reset mechanism.

[0073] The locking plate 11 is a pedal.

[0074] It also includes a crossbar 19 fixedly connected to the ladder frame 11;

[0075] The crossbar 19 is located below the locking plate 21.

[0076] In this embodiment, the crossbar 19 limits the maximum downward angle of the free end of the locking plate 21 to prevent the free end of the locking plate 21 from tilting excessively downward when stepping on it, which would cause the user to be unstable.

[0077] It also includes a stop 24 disposed on the reset mechanism;

[0078] The stop block 24 is fixedly connected to the lower end of the abutment block 22 and is located within the notch 23.

[0079] In this embodiment, by setting the stop block 24, when the trigger mechanism is pressed down, the connecting rod 43 enters the notch 23 and is blocked by the stop block 24 to prevent the connecting rod 43 from coming out from under the stop block 22 and causing the device to fail.

[0080] The reset mechanism includes a tension spring 32;

[0081] One end of the tension spring 32 is fixedly connected to the stop block 24.

[0082] In practice, depending on the actual situation, tension bands, torsion springs, or other structures can be used to replace tension spring 32, as long as the effect of pulling the stop block 24 is achieved, causing the stop block 24, the abutment block 22, and the locking plate 21 to flip upward counterclockwise is achieved. In this embodiment, tension spring 32 provides the tension required for the stop block 24 to reset.

[0083] The reset mechanism also includes a pull ring 31;

[0084] Pull ring 31 is fixedly connected to crossbar 19;

[0085] The pull ring 31 is fixedly connected to the free end of the tension spring 32.

[0086] In practice, depending on the actual situation, the pull ring 31 can be omitted, and the free end of the tension spring 32 can be directly fixed to the crossbar 19. In this embodiment, the pull ring 31 is used to fix the free end of the tension spring 32 to the crossbar 19. The stop block 24, tension spring 32, pull ring 31, crossbar 19 and ladder frame 11 cooperate with each other to apply tension to the stop block 24. When the connecting rod 43 is located in front of the notch 23 (e.g. Figure 6 As shown), and rotated clockwise downwards (as shown). Figure 6 , Figure 5 and Figure 4 As shown), the tension spring 32 pulls the stop block 22, and the stop block 22 and the locking plate 21 rotate counterclockwise, so that the connecting rod 43 finally abuts against the front side of the stop block 22 and the lower end of the notch 23 (as shown). Figure 3 As shown in the figure, the front wheel 13 replaces the front outrigger 14 to support the ground, thus cooperating with the rear wheel 12 to make the ladder frame 11 movable. The structure is simple and practical.

[0087] The triggering mechanism includes a connecting plate 41 and a foot block 42;

[0088] The connecting plate 41 is fixedly connected to the connecting rod 43 and is rotatably mounted on the ladder frame 11;

[0089] Several front wheels 13 are fixedly connected to the connecting plate 41;

[0090] The step block 42 is fixedly connected to the connecting plate 41.

[0091] In practice, depending on the actual situation, the connecting plate 41 can be replaced with a connecting frame, connecting rod, or other structure, and the pedal 42 can be replaced with a handle, rod, or frame, as long as the connecting rod 43 and the front wheel 13 are connected and can be manually triggered. In this embodiment, the user presses down on the pedal 42 to make the connecting plate 41, connecting rod 43, and front wheel 13 rotate clockwise (e.g., ...). Figure 6 , Figure 5 and Figure 4 As shown), the connecting rod 43 is driven to engage with the front side of the abutment block 22 and the lower end of the notch 23, thereby causing several front wheels 13 to support the ground (as shown). Figure 3 As shown, with several rear wheels 12, the escalator can be moved without having to operate the braking structure of multiple rollers to release the locks of all rollers, as is the case with existing technologies. The structure is simple and practical.

[0092] The step block 42 is fixedly installed with a protruding plate 421;

[0093] The projection of the protruding plate 421 in the vertical direction protrudes from the front end of the locking plate 21.

[0094] In this embodiment, the protruding plate 421, which is fixedly connected to the pedal, always protrudes from the front side of the top view projection of the locking plate 21, regardless of the angle of the locking plate 21, making it convenient for the user to step on. The structure is simple and practical.

[0095] The step block 42 is located on the right side of the connecting plate 41.

[0096] In this embodiment, by placing the foot block 42 on the right side of the connecting plate 41, it is easier for the user to operate with their right foot, thus improving comfort and convenience.

[0097] A guardrail 17 is fixedly connected to the ladder frame 11.

[0098] In this embodiment, the guardrail 17 can intercept and protect the user when climbing the escalator and after reaching the top of the escalator, so as to prevent the user from falling off the escalator. When the user steps on the step block 42 and the protruding plate 421, the guardrail 17 lifts the front end of the ladder frame 11, making it easier for the front wheel 13 to flip down, so that the escalator can enter the movable state more quickly.

[0099] Multiple intermediate steps 15 are fixedly connected to the ladder frame 11.

[0100] In practice, depending on the actual situation, the intermediate step 15 can be omitted, and climbing can be done directly through the ladder frame 11. In this embodiment, the safety of climbing the ladder is improved by setting multiple intermediate step 15s.

[0101] A workbench 16 is fixedly connected to the ladder frame 11.

[0102] In this embodiment, the workbench 16 supports the user after the user climbs to the top of the ladder 11, allowing the user to stand directly on the workbench 16 to perform loading and unloading work.

[0103] A kick plate 18 is provided on the edge of the workbench 16.

[0104] In this embodiment, the kick plate 18 intercepts the user's feet when the user is on the workbench 16, preventing the patient's feet from extending along the edge of the workbench 16 and causing them to fall.

[0105] The front outrigger 14 is equipped with an anti-slip sleeve 141.

[0106] In this embodiment, the anti-slip sleeve 141 effectively improves the anti-slip capability of the front support leg 14 and has a larger ground contact area than the roller, making the escalator more stable when the front support leg 14 is used for support. In addition, the anti-slip sleeve 141 replaces the front support leg 14 in contact with the ground, protecting the front support leg 14, preventing wear and tear, and increasing the service life of the escalator.

[0107] In this embodiment, when the escalator is supported by the front support leg 14, such as Figure 6 As shown, at this time, the connecting rod 43 is pressed against the front end face of the abutment block 22 under the action of the tension spring 32, the free end of the step block 42 is raised, and the tension spring 32 is in a stretched state.

[0108] When it is necessary to move the escalator, such as Figure 5 As shown, the user steps on the protruding plate 421 and lifts the front end of the ladder frame 11 upwards by using the rear wheel as a fulcrum through the guardrail 17, thereby causing the connecting plate 41 to drive the connecting rod 43 and several front wheels 13 to rotate clockwise.

[0109] At the same time, such as Figure 4 As shown, at this time, the connecting rod 43 pushes the stop block 22, overcoming the tension of the tension spring 32, causing the stop block 22 to rotate counterclockwise until it is engaged with the notch 23, as shown. Figure 3 As shown, during this process, the connecting rod 43 slides on the front end face of the abutment block 22;

[0110] Subsequently, the escalator enters a state supported by several front wheels 13, as... Figure 3 As shown, at this time, the front wheel 13 is in contact with the ground, causing the front outrigger 14 to leave the ground. The top surface of the notch 23 applies a downward force to the connecting rod 43, and the side wall of the notch 23 applies a forward force to the connecting rod 43, thereby causing the connecting rod 43 to be locked in the notch 23, thus fixing the front wheel 13.

[0111] During this period, the crossbar 19 limits the maximum downward angle of the free end of the locking plate 21;

[0112] At this point, the escalator enters a movable state, and the user can push the ladder frame 11 to move it. Unlike existing technologies, it is not necessary to operate the braking structure of multiple rollers to release the lock on all rollers before the escalator can be moved.

[0113] When it is necessary to fix the escalator, such as Figure 4 As shown, when the user steps on the locking plate 21, the free end of the locking plate 21 is pressed down. The locking plate 21 drives the stop block 22 and the stop block 24 to rotate clockwise. Through the top surface of the notch 23, the connecting rod 43 rotates clockwise and slides forward along the top surface of the notch 23.

[0114] Subsequently, as Figure 5 As shown, at this time, the free end of the locking plate 21 is stepped on the crossbar 19, and the connecting rod 43 disengages from the notch 23, causing several front wheels 13, connecting plate 41, step block 42 and protruding plate 421 to rotate clockwise under the action of ground support force.

[0115] Ultimately, as Figure 6As shown, at this time, the front outrigger 14 is in contact with the ground, the tension spring 32 is in a stretched state, and under the action of the tension spring 32, the front end of the abutment block applies a forward force to the connecting rod 43, so that the connecting rod 43 abuts against the front end of the abutment block 22, thus fixing several front wheels 13.

[0116] At this point, the escalator is in a fixed state. Under the protection of the guardrail 17, users can climb the escalator by using the locking plate 21 and the intermediate step 15. After reaching the top or climbing the ladder frame 11, under the protection of the kick plate 18 and the guardrail 17, users can stand on the work platform 16 or the intermediate step 15 and the locking plate 21 to perform loading and unloading work. Unlike existing technologies, it is not necessary to operate the braking structure of multiple rollers again to lock all rollers before climbing the ladder and subsequent work can proceed.

[0117] The foregoing has provided a detailed description of a foldable roller escalator provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A movable escalator with foldable rollers, characterized in that: include: Ladder rack (11); A plurality of rear wheels (12) are fixedly connected to the rear side of the lower end face of the ladder frame (11); Locking plate (21), which is rotatably connected to the front end of the ladder frame (11); A stop block (22) is fixedly connected to the lower end face of the locking plate (21), and a notch (23) is provided on the front side of the stop block (22). A triggering mechanism is rotatably mounted on the ladder frame (11); Link (43), which is disposed on the triggering mechanism and located in front of the notch (23); A reset mechanism is installed between the abutment (22) and the ladder (11), the reset mechanism being used to drive the abutment (22) to rotate toward the connecting rod (43); A plurality of front wheels (13), wherein the plurality of said front wheels (13) are disposed on the triggering mechanism; Front support leg (14), the front support leg (14) is fixedly connected to the front end of the ladder frame (11); When the escalator is supported by the front wheel (13), the connecting rod (43) is located in the notch (23), and the abutment block (22) prevents the connecting rod (43) from moving upward; When the escalator is supported by the front support leg (14), the connecting rod (43) disengages from the notch (23). At this time, the front end face of the abutment block (22) is pressed against the abutment block (22) by the reset mechanism.

2. The movable escalator with foldable rollers according to claim 1, characterized in that: It also includes a crossbar (19) fixedly connected to the ladder frame (11); The crossbar (19) is located below the locking plate (21).

3. A movable escalator with foldable rollers according to claim 2, characterized in that: It also includes a stop (24) disposed on the reset mechanism; The stop block (24) is fixedly connected to the lower end of the abutment block (22) and located in the notch (23).

4. A movable escalator with foldable rollers according to claim 3, characterized in that: The reset mechanism includes a tension spring (32); One end of the tension spring (32) is fixedly connected to the stop block (24).

5. A movable escalator with foldable rollers according to claim 4, characterized in that: The reset mechanism also includes a pull ring (31); The pull ring (31) is fixedly connected to the crossbar (19); The pull ring (31) is fixedly connected to the free end of the tension spring (32).

6. A movable escalator with foldable rollers according to claim 1, characterized in that: The triggering mechanism includes a connecting plate (41) and a foot block (42); The connecting plate (41) is fixedly connected to the connecting rod (43) and is rotatably mounted on the ladder frame (11); Several of the aforementioned front wheels (13) are fixedly connected to the connecting plate (41); The step block (42) is fixedly connected to the connecting plate (41).

7. A movable escalator with foldable rollers according to claim 6, characterized in that: The step block (42) is fixedly installed with a protruding plate (421); The projection of the protruding plate (421) in the vertical direction protrudes from the front end of the locking plate (21).

8. A movable escalator with foldable rollers according to claim 6, characterized in that: The step block (42) is located on the right side of the connecting plate (41).

9. A movable escalator with foldable rollers according to claim 1, characterized in that: A guardrail (17) is fixedly connected to the ladder frame (11).

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