Automatic transmission device
By designing a slidable comb plate structure in the automatic transmission device, the safety hazards in the connection area between the moving parts and the stationary parts are solved, and the effects of safety improvement and accident prevention are achieved.
Patent Information
- Application Number
- CN202311022733.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-14
- Publication Date
- 2025-02-21
AI Technical Summary
In the automatic transmission device, safety hazards are easily present in the connection area between the moving parts and the stationary parts. For example, external foreign objects such as shoelaces may enter the handover position, resulting in an accident.
A slidable comb-tooth plate structure is designed, including a comb-tooth plate support plate and a comb-tooth plate. The support plate can slide along the guide rail of the platform pedal. The comb-tooth plate cooperates with the teeth of the steps. When external foreign objects enter, the comb-tooth plate is Slide with the support plate to avoid hard collisions.
Through the sliding comb toothed plate structure, the safety of the connection area in the automatic transmission device is effectively improved, accidents caused by the entry of external foreign objects are avoided, and the safety of passengers and equipment is protected.
Smart Images
Figure CN119490124A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of automatic transmission devices, and more specifically, to a slidable comb plate structure and an automatic transmission device equipped with the comb plate structure. Background Art
[0002] Automatic transport devices such as escalators and moving walkways are often used to transport passengers between two fixed platforms. For automatic transport devices, the junction between the moving parts and the stationary parts is a relatively dangerous area, such as between the circularly moving steps and the fixed platform. Due to the relative motion, some dangerous behaviors of passengers may cause shoelaces, etc. to enter the junction. Summary of the invention
[0003] The purpose of this application is to solve or at least alleviate the problems existing in the prior art.
[0004] According to one aspect, there is provided an automatic transmission device, comprising:
[0005] an opposing entry platform and an exit platform and a series of steps running cyclically between the entry platform and the exit platform;
[0006] a platform step at the entrance platform or the exit platform;
[0007] a comb plate support plate connected to the platform pedal and slidable along the guide rail of the platform pedal in a length direction; and
[0008] One or more comb plates, the one or more comb plates are fixedly mounted to the comb plate support plate.
[0009] Optionally, in an embodiment of the automatic transmission device, when the automatic transmission device operates normally, the comb plate and the comb plate support plate remain fixed, the teeth of the comb plate fit into the corresponding grooves of the step, and when external foreign matter enters between the comb plate and the step, the comb plate and the comb plate support plate slide together along the length direction relative to the platform pedal.
[0010] Optionally, in an embodiment of the automatic transmission device, the sliding distance of the comb plate support plate relative to the platform pedal is greater than 100 mm. Optionally, the sliding distance of the comb plate support plate relative to the platform pedal is greater than 200 mm.
[0011] Optionally, in an embodiment of the automatic transmission device, the comb plate support plate and the platform pedal cooperate with each other through a plurality of sliding teeth alternately arranged and extending along the length direction, and the guide rails are arranged on both sides of the alternately arranged sliding teeth.
[0012] Optionally, in an embodiment of the automatic transmission device, the sliding teeth of the comb plate support plate and the platform pedal have mutually cooperating guiding features, thereby guiding the sliding of the comb plate support plate relative to the platform pedal.
[0013] Optionally, in an embodiment of the automatic transmission device, the sliding teeth of the comb plate support plate and the platform pedal have limiting features to define the sliding limit positions of the comb plate support plate and the platform pedal.
[0014] Optionally, in an embodiment of the automatic transmission device, the platform pedal also includes a bottom plate, the sliding teeth of the platform pedal are arranged on the bottom plate, the bottom plate has a length greater than the sliding teeth of the platform pedal, and the platform pedal also includes a top plate covering the sliding teeth of the platform pedal.
[0015] Optionally, in an embodiment of the automatic transmission device, the joint surface between the comb plate support plate and the platform pedal is a slope, and the comb plate support plate slides along the slope relative to the platform pedal, so that during the sliding of the comb plate support plate, the gap between the comb plate and the step increases.
[0016] Optionally, in an embodiment of the automatic transmission device, a reset elastic member is further provided between the comb plate support plate and the platform pedal.
[0017] Optionally, in an embodiment of the automatic transmission device, the reset elastic member is configured as a spring respectively arranged between both sides of the alternately arranged sliding teeth of the comb plate support plate and the platform pedal.
[0018] Optionally, in an embodiment of the automatic transmission device, the comb plate device further comprises a displacement sensor arranged on one side or both sides of the comb plate support plate for monitoring the displacement of the comb plate support plate.
[0019] Optionally, in an embodiment of the automatic transmission device, the displacement sensor includes proximity sensors arranged on both sides of the comb plate support plate.
[0020] The device according to the invention provides improved safety in the area of the junction of the step and the landing tread. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which:
[0022] Figure 1A schematic diagram of an escalator device is shown;
[0023] Figure 2 An enlarged view of the junction area between the steps and the platform of an escalator device is shown;
[0024] Figure 3 and Figure 4 The top views of the comb plate support plate and the platform pedal according to the embodiment of the present invention are respectively shown in a normal situation and after sliding;
[0025] Figure 5 and Figure 6 The three-dimensional diagrams of the comb plate support plate and the platform pedal according to the embodiment of the present invention are respectively shown in a normal situation and after sliding;
[0026] Figure 7 A top view of a comb plate support plate and a platform pedal according to an embodiment of the present invention is shown;
[0027] Figure 8 and Fig. 9 A side view showing a comb plate support plate and a platform pedal in a normal situation and after sliding according to another embodiment of the present invention; and
[0028] Fig.10 A top view of a comb plate support plate and a platform pedal according to another embodiment of the present invention is shown. DETAILED DESCRIPTION
[0029] Figure 1 An escalator 10 is illustrated. In the ensuing description, it should become apparent that the present invention is applicable to other passenger conveyor systems, such as moving walkways. The escalator 10 generally includes a truss 12 extending between a lower landing 14 and an upper landing 16. A plurality of sequentially connected steps or pallets 18 are connected to a step chain 20 and travel through a closed loop path within the truss 12. Pairs of handrails 22 include moving handrails 24. A drive machine 26 or drive system is typically positioned in a machine space 28 below the upper landing 16; however, an additional machine space 28′ may be positioned below the lower landing 14. The drive machine 26 is configured to drive the pallets 18 and / or handrails 24 via the step chain 20. The drive machine 26 operates to move the pallets 18 in a selected direction at a desired speed under normal operating conditions.
[0030] The pallet 18 makes a 180 degree change of forward direction in a turning area 19 located below the lower landing 14 and the upper landing 16. The pallet 18 is pivotally attached to the step chain 20 and follows the closed loop path of the step chain 20, running from one landing to another and back again.
[0031] The drive machine 26 includes a first drive component 32, such as a motor output sheave, connected to a drive motor 34 via a belt reduction assembly 36, which includes a second drive component 38, such as an output sheave, driven by a tensioning component 39, such as an output belt. In some embodiments, the first drive component 32 is a driving component and the second drive component 38 is a driven component.
[0032] As used herein, in various embodiments, the first drive member 32 and / or the second drive member 38 can be any type of rotating device, such as a rope, pulley, gear, wheel, sprocket, cog, pinion, etc. In various embodiments, the tension member 39 can be configured as a chain, belt, cable, belt, band, strip, or any other similar device that operatively connects two elements to provide a driving force from one element to another. For example, the tension member 39 can be any type of interconnecting member that extends between the first drive member 32 and the second drive member 38 and operatively connects the first drive member 32 and the second drive member 38. In some embodiments, as Figure 1 As shown in FIG. 1 , the first drive member 32 and the second drive member 38 may provide belt reduction. For example, the diameter of the first drive member 32 may be approximately 75 mm (2.95 inches), while the diameter of the second drive member 38 may be approximately 750 mm (29.53 inches). For example, the belt reduction allows the sheaves to be replaced to change the speed for 50 or 60 Hz mains power applications or different step speeds. However, in other embodiments, the second drive member 38 may be substantially similar to the first drive member 32.
[0033] As noted, the first drive member 32 is driven by the drive motor 34 and is thus configured to drive the tensioning member 39 and the second drive member 38. In some embodiments, the second drive member 38 may be an idler gear or similar device that is driven by the tensioning member 39 through the operative connection between the first drive member 32 and the second drive member 38. The tensioning member 39 travels around a loop set by the first drive member 32 and the second drive member 38, which may be referred to as a small loop hereinafter. The small loop is provided for driving a larger loop, which is composed of the step chain 20 and is driven by, for example, the output sheave 40. Under normal operating conditions, based on the movement speed of the first drive member 32 as driven by the drive motor 34, the tensioning member 39 and the step chain 20 move in unison.
[0034] The escalator 10 also includes a controller 115 in electronic communication with the drive motor 34. As shown, the controller 115 can be positioned in the machine space 28 of the escalator 10 and is configured to control the operation of the escalator 10. For example, the controller 115 can provide a drive signal to the drive motor 34 to control the acceleration, deceleration, stop, etc. of the pedal 18 through the step chain 20. The controller 115 can be an electronic controller including a processor and an associated memory, the memory including computer executable instructions, which, when executed by the processor, cause the processor to perform a variety of operations. The processor can be, but is not limited to, a single processor or multi-processor system of any architecture in a variety of possible architectures, including field programmable gate arrays (FPGAs), central processing units (CPUs), application specific integrated circuits (ASICs), digital signal processors (DSPs), or graphics processing units (GPUs) hardware arranged in a homogeneous or heterogeneous manner. The memory can be, but is not limited to, random access memory (RAM), read-only memory (ROM), or other electronic, optical, magnetic, or any other computer-readable medium.
[0035] Although described herein as a specific escalator drive system and specific components, this is merely exemplary, and those skilled in the art will recognize that other escalator system configurations may operate with the invention disclosed herein.
[0036] Continue to refer Figure 2 , which shows a partial enlarged view of the upper station 16 of the automatic transport device. There is a platform pedal 167 at the upper station 16, which covers the machine space 28. Passengers can enter or leave the automatic transport device through the platform pedal 167, so the platform pedal 167 can constitute an entrance platform pedal or an exit platform pedal. The platform pedal 167 is connected to the comb plate 17, and the front end of the comb plate 17 has a plurality of parallel teeth 175, which cooperate with the grooves 181 of the circulating steps 18. The comb plate 17 and the platform pedal 167 are both fixedly arranged and there is only a gap of several millimeters between the two. Although not shown, a similar structure is provided at the lower station 14. The structure described below according to an embodiment of the present invention can be applied to replace Figure 2 The comb plate 17 in the middle improves the safety of the connection area between the step 18 and the platform pedal 167.
[0037] Continue to refer Figures 3 to 6Next, the structure near the comb plate of the automatic transmission device according to the present invention is introduced. The automatic transmission device according to the present invention includes: a platform pedal 167 and a comb plate support plate 172. The platform pedal 167 is fixedly arranged at both ends of the automatic transmission device, and the comb plate support plate 172 can be arranged at least at one end of the platform pedal or at both ends of the platform pedal. The comb plate support plate 172 is connected to the platform pedal 167 and can slide along the guide rail 165 of the platform pedal 167 along the length direction xx. One or more comb plates 171 are connected to the end of the comb plate support plate 172. The comb plate 171 can adopt a structure similar to the comb plate in the existing design. When in use, the teeth of the comb plate 171 are matched to the corresponding grooves on the incoming step 18. More specifically, the comb plate support plate 172 may include opposite first ends 179 and second ends 178, the first end 179 of the comb plate support plate can be slidably connected to the platform pedal 167 relative to the platform pedal 167, and one or more parallel comb plates 171 are arranged at the second end 178 of the comb plate support plate. The platform pedal 167 may have guide rails 165 to guide the sliding of the comb plate support plate 172 . For example, in some embodiments, the guide rails 165 are provided on both sides of the platform pedal 167 .
[0038] The comb plate 171 can be used in the same manner as in the prior art. Figure 2 The comb plate 17 shown is of the same type. Therefore, the comb plate support plate 172 according to the embodiment of the present invention can be realized by adding a sliding bracket to the existing comb plate, and its structure is simple and easy to modify. In some embodiments, the comb plate 171 and the comb plate support plate 172 can be made of different materials. For example, the comb plate 171 can be made of aluminum alloy or resin plastic, and the comb plate support plate 172 can be made of a material with higher strength, such as stainless steel. Supporting the comb plate 171 by the comb plate support plate 172 allows the comb plate 171 to slide horizontally over a large range along the length direction xx relative to the platform pedal 167, thereby providing a buffer when foreign objects enter.
[0039] In some embodiments, more specifically, the second end 179 of the comb plate support plate 172 and the platform pedal 167 cooperate with each other through a plurality of sliding teeth alternately arranged along the length direction. Specifically, the comb plate support plate 172 includes a plurality of sliding teeth 173 extending along the length direction xx, and similarly, the platform pedal 167 includes a plurality of sliding teeth 161 extending along the length direction x--x. The sliding teeth 173 of the comb plate support plate 172 cooperate with the sliding teeth 161 of the platform pedal 167, thereby realizing the sliding of the comb plate support plate 170 relative to the platform pedal 167. Figure 3As shown, in the normal operation state of the automatic transmission device, the comb plate support plate 172 remains fixed, and the second end 179 of the comb plate support plate 172 and the sliding teeth 173, 161 of the platform pedal 167 have a first overlapping length d. Figure 4 When an external object 19 such as a shoe is rolled into the space between the step 18 and the comb plate 171, the comb plate 171 and the comb plate support plate 172 slide along the length direction xx with the step 18 relative to the platform pedal 167, for example, until Figure 4 The second overlapping length of the second end 179 of the comb plate support plate 172 and the sliding teeth 173, 161 of the platform pedal 167 is d'. During this process, the automatic transmission device will be stopped and the buffer sliding provided by the comb plate support plate 172 will avoid hard collisions, prevent damage to the automatic transmission device or injury to personnel. It should be understood that although in the embodiment shown, the comb plate support plate 172 and the platform pedal 167 are slidably matched through sliding teeth, in alternative embodiments, other linear sliding structures can be used, such as mechanical structures such as slide rails, linear bearings, guide rail pairs, guide columns, etc. In addition, in order to promote the sliding, components such as balls, pulleys, etc. can be set between the relatively sliding components, or lubricating oil can be provided between the two.
[0040] Continue to refer Figure 7 In some embodiments, the platform pedal 167 includes a guide rail 165 disposed on both sides of the alternating sliding teeth, and the guide rail may be similar to a guide rail pair of a drawer or adopt other suitable structures. A ball bearing or the like may be provided in the guide rail pair to facilitate sliding, and a damping device may also be provided in the guide rail pair to avoid collision. In some embodiments, a guide rail may be provided between the second end 179 of the comb plate support plate 172 and any adjacent sliding teeth 173, 161 of the platform pedal 167.
[0041] In some embodiments, the slidable distance of the comb plate support plate 170 is greater than 100 mm, that is, the difference between the second overlapping length d' and the first overlapping length d is greater than 100 mm. In some embodiments, the slidable distance of the comb plate support plate 170 is greater than 200 mm, that is, the difference between the second overlapping length d' and the first overlapping length d is greater than 200 mm. A sliding buffer of 200 mm can effectively avoid hard collisions, thereby avoiding damage to personnel and machines. In some embodiments, the comb plate support plate and the sliding teeth 173, 161 of the platform pedal have mutually matched guiding features, such as one of the adjacent sliding teeth has a protrusion, and the other of the adjacent sliding teeth has a groove track along the length direction to guide the relative sliding of the two. In some embodiments, rollers or balls can also be provided between adjacent sliding teeth. In some embodiments, the comb plate support plate and the sliding teeth 173, 161 of the platform pedal have limiting features, such as limiting the separation of the two from each other and limiting the minimum and maximum positions of the two sliding against each other, etc. The limiting features can also adopt structures such as protrusions and grooves or other suitable mechanical structures.
[0042] In some embodiments, the platform pedal 167 further includes a bottom plate 160, in which case the guide rail 165 may also be disposed on the bottom plate 160. In some embodiments, the sliding teeth 161 of the platform pedal are also disposed on the bottom plate 160. In some embodiments, the length of the bottom plate 160 is greater than the length of the sliding teeth 161 thereon, and is also greater than the sliding teeth 173 of the second end 179 of the comb plate support plate 170. The bottom plate 160 provides support for the comb plate support plate, thereby making the sliding process more stable. Although not shown, in some embodiments, the platform pedal 167 may also be provided with a top plate covering the sliding teeth 161 of the platform pedal, so that the alternating sliding teeth of the platform pedal 167 and the comb plate support plate 170 are between the bottom plate and the top plate of the platform pedal 167, thereby providing protection for the sliding teeth and preventing foreign matter from entering the gaps between the sliding teeth.
[0043] Continue to refer Figure 8 and Fig. 9 , which shows an alternative combination structure of a comb plate support plate and a platform pedal. In this embodiment, the joint surfaces 169, 179 of the comb plate support plate and the platform pedal are slopes, and the sliding of the comb plate support plate 172 relative to the platform pedal 167 is performed along the slope (as shown by arrow R). In this embodiment, the slope should be arranged to have a smaller slope, for example, less than 10 degrees. Although not shown, it is conceivable that the guide rails 165 on both sides of the platform pedal 167 also extend along the slope. Alternatively, the guide rails can be directly set on the slope 169 of the platform pedal 167. Through this arrangement, during the sliding process of the comb plate support plate 172, the gap between the comb plate 171 and the step is increased, which is conducive to releasing foreign objects that have been caught therein, such as shoelaces.
[0044] Continue to refer Fig.10 In some embodiments, a reset elastic member 19 is further included between the comb plate support plate 170 and the platform pedal 167. The reset elastic member 19 is configured as a spring disposed on both sides of the sliding teeth 173, 163 of the comb plate support plate 170 and the platform pedal 167, respectively. The spring has a large stiffness, so that the comb plate support plate 170 will not slide easily under normal circumstances, and when a foreign object is involved, the thrust of the pedal 18 driven by the driving device will compress the spring to make the comb plate support plate 170 slide relative to the platform pedal 167. On the other hand, the reset elastic member 19 can also assist in resetting the comb plate support plate 170. In alternative embodiments, the reset elastic member 19 can take other forms. In other alternative embodiments, a magnetic suction device can also be provided to keep the comb plate support plate 170 from sliding easily.
[0045] In some embodiments, the comb plate device further comprises a displacement sensor 25 disposed on one or both sides of the comb plate support plate 170 for monitoring the displacement of the comb plate support plate 170. In some embodiments, the displacement sensor 25 comprises proximity sensors disposed on both sides of the comb plate support plate 172. After the comb plate support plate 172 moves, the proximity sensor may send a signal to the safety control system of the automatic transmission device, thereby stopping the automatic transmission device. In alternative embodiments, the displacement sensor 25 may select other suitable displacement sensors based on light, electricity or mechanics.
[0046] The specific embodiments described above in this application are only for more clearly describing the principles of this application, wherein each component is clearly shown or described to make the principles of the present invention easier to understand. Without departing from the scope of this application, those skilled in the art can easily make various modifications or changes to this application. Therefore, it should be understood that these modifications or changes should be included in the scope of patent protection of this application.
Claims
1. An automatic transmission device, comprising: an opposing entry platform and an exit platform and a series of steps running cyclically between the entry platform and the exit platform; a platform step at the entrance platform or the exit platform; a comb plate support plate connected to the platform pedal and slidable along the guide rail of the platform pedal in a length direction; as well as One or more comb plates, the one or more comb plates are fixedly mounted to the comb plate support plate.
2. The automatic transmission device according to claim 1, characterized in that: When the automatic transmission device is operating normally, the comb plate and the comb plate support plate remain fixed, and the teeth of the comb plate fit into the corresponding grooves of the step. When external foreign matter enters between the comb plate and the step, the comb plate and the comb plate support plate slide together along the length direction relative to the platform pedal.
3. The automatic transmission device according to claim 1, characterized in that: The slidable distance of the comb-tooth plate support plate relative to the platform pedal is greater than 100 mm. Optionally, the slidable distance of the comb-tooth plate support plate relative to the platform pedal is greater than 200 mm.
4. The automatic transmission device according to any one of claims 1 to 3, characterized in that: The comb plate support plate and the platform pedal cooperate with each other through a plurality of alternately arranged sliding teeth extending along the length direction, and the guide rails are arranged on both sides of the alternately arranged sliding teeth.
5. The automatic transmission device according to claim 4, characterized in that: The comb plate support plate and the sliding teeth of the platform pedal have mutually cooperating guiding features, thereby guiding the sliding movement of the comb plate support plate relative to the platform pedal.
6. The automatic transmission device according to claim 4, characterized in that: The sliding teeth of the comb plate support plate and the platform pedal have limiting features to limit the sliding limit positions of the comb plate support plate and the platform pedal.
7. The automatic transmission device according to claim 4, characterized in that: The platform pedal further includes a bottom plate on which the sliding teeth of the platform pedal are arranged, the bottom plate having a length greater than that of the sliding teeth of the platform pedal, and the platform pedal further includes a top plate covering the sliding teeth of the platform pedal.
8. The automatic transmission device according to any one of claims 1 to 3, characterized in that: The joint surface between the comb plate support plate and the platform pedal is a slope surface, and the comb plate support plate slides relative to the platform pedal along the slope surface, so that during the sliding process of the comb plate support plate, the gap between the comb plate and the step increases.
9. The automatic transmission device according to any one of claims 1 to 3, characterized in that: A reset elastic member is also included between the comb plate support plate and the platform pedal.
10. The automatic transmission device according to claim 9, characterized in that: The return elastic member is configured as a spring respectively disposed between both sides of the alternately disposed sliding teeth of the comb plate support plate and the platform pedal.
11. The automatic transmission device according to any one of claims 1 to 3, characterized in that: The comb plate device further comprises a displacement sensor arranged on one side or both sides of the comb plate support plate for monitoring the displacement of the comb plate support plate.
12. The automatic transmission device according to claim 11, characterized in that: The displacement sensor includes proximity sensors arranged on both sides of the comb plate support plate.