Step falling-off detection device

Abstract

The utility model provides a step falling detection device, and relates to the technical field of transportation equipment. The stair falling-off detection device comprises at least one elastic assembly, the elastic assembly comprises at least one connecting line and at least one elastic piece, the connecting line is located at the bottom of the protruding extending part, one end of the connecting line is connected with the end of the elastic piece, the ends, away from each other, of the elastic piece and the connecting line are fixedly arranged, and the elastic piece further comprises an elastic piece; the elastic piece is perpendicular to the extending direction of the elastic piece. The sensing assemblies are arranged corresponding to the elastic assemblies, the sensing assemblies are arranged at the bottoms of the elastic assemblies, each sensing assembly comprises a sensing face, the sensing faces are arranged to face the sides, away from the fixed ends of the elastic pieces, of the elastic pieces, and the sensing faces and the elastic pieces are spaced by a preset distance, so that when the steps fall to the connecting line, the elastic pieces move to the positions making contact with the sensing faces. According to the step falling detection device, the installation state of the step of the protruding part of the separated machine room type escalator can be detected, and safe operation of the separated machine room type escalator is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation equipment, and in particular relates to a step falling detection device. Background Art

[0002] Escalators or moving walkways are widely used in large shopping malls, airports, railway stations and other places. Escalators are usually equipped with a device that can detect missing steps. At present, the missing step detection device usually detects the edge of the step skirting board by photoelectric detection. When the missing step occurs before the photoelectric detection, the missing step can be detected. However, when the missing step or the step falls off at the upper and lower turning points, it cannot be detected immediately, which is prone to major hidden dangers.

[0003] Moreover, compared with the conventional escalator where the stairway is set inside the truss, the stairway of the separated machine room escalator extends outside the truss. The distance the stairway runs at the turning point is longer than that of the conventional escalator, making it more prone to step falling off. In addition, the bottom of the protruding turning point of the separated machine room escalator is not protected by the truss. When a step falls off here, the escalator will continue to run because it cannot be detected in time whether the step has fallen off, which may cause a safety accident.

[0004] Therefore, there is an urgent need to provide a more efficient and stable escalator step falling detection method to ensure the safe operation of the escalator. Utility Model Content

[0005] One purpose of the utility model is to provide a step-off detection device to solve the technical problem that step-off at the turning point of a separate machine room type escalator in the prior art is difficult to detect.

[0006] Another object of the utility model is to improve the structural stability of the step falling detection device.

[0007] According to the purpose of the utility model, the utility model provides a step-off detection device for detecting the installation state of the steps of a separated machine room type escalator, wherein the escalator has a protruding portion extending out of a truss, and the step-off detection device comprises:

[0008] At least one elastic component, the elastic component comprising at least one connecting line and at least one elastic member, the connecting line is located at the bottom of the protruding portion, one end of the connecting line is connected to the end of the elastic member, the elastic member and one end of the connecting line away from each other are fixedly arranged, and the elastic member further comprises a spring sheet, which is perpendicular to the extension direction of the elastic member;

[0009] At least one sensing component is arranged corresponding to each of the elastic components and is disposed at the bottom of the elastic component. The sensing component includes a sensing surface, which is arranged to face the side of the spring sheet away from the fixed end of the elastic member and to be spaced a preset distance from the spring sheet, so that when the step falls to the connecting line, the spring sheet moves to a position in contact with the sensing surface.

[0010] Optionally, the sensing component further includes:

[0011] A telescopic member, one end of which is fixedly arranged, and the other end is fixedly connected to a side of the sensing surface away from the spring sheet, so that when the spring sheet contacts the sensing surface, the telescopic member drives the sensing surface to move toward the side away from the spring sheet.

[0012] Optionally, it also includes:

[0013] At least one mounting frame arranged corresponding to the sensing component is located at the bottom of the sensing component, and the mounting frame includes a main body and fixing members arranged at both ends of the main body, and the fixing members are used to fix the connection line and the main body, the elastic component and the main body.

[0014] Optionally, the main body is arranged so that its extension direction is parallel to the extension direction of the protruding portion of the escalator.

[0015] Optionally, a spacing ratio between the connecting line and the main body and between the step and the main body is any value in the range of 1:5-2:3.

[0016] Optionally, there are multiple elastic components, and the multiple elastic components are evenly spaced along the width direction of the step.

[0017] Optionally, the plurality of elastic components have a preset width in a width direction parallel to the step, and a ratio of the preset width to the width of the step is any value in a range of 1:2-1:1.

[0018] Optionally, the connecting wire is made of steel.

[0019] The utility model arranges an elastic component and a sensing component in a step fall detection device, wherein the connecting line of the elastic component is arranged so that when the step falls to the connecting line, the spring piece moves to a position in contact with the sensing surface, that is, when the step falls and falls on the connecting line, the gravity of the step itself drives the connecting line to be displaced to drive the elastic member to be deformed, thereby driving the spring piece to move toward a side close to the sensing surface until the spring piece contacts the sensing surface to trigger a sensing signal, and a controller receives the sensing signal to control the escalator to close, thereby avoiding safety hazards caused by the continued operation of the escalator, thereby ensuring the safety of the escalator operation.

[0020] Furthermore, the sensing component of the utility model also includes a telescopic member, one end of which is fixedly arranged, and the other end is fixedly connected to the side of the sensing surface away from the spring sheet, so that when the spring sheet contacts the sensing surface, the telescopic member drives the sensing surface to move toward the side away from the spring sheet. One end of the telescopic member is fixedly connected to the sensing surface, and the telescopic member is arranged to drive the sensing surface to move toward the side away from the spring sheet when the spring sheet contacts the sensing surface, so as to avoid rigid contact between the spring sheet and the sensing surface, which may cause hard damage to the sensing component, thereby ensuring the structural stability of the step fall detection device.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of a step fall detection device according to an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 A schematic partial enlarged diagram is shown;

[0025] Figure 3 It is a schematic installation diagram of a step fall detection device according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100-step fall detection device, 200-separated machine room type escalator, 300-ground, 10-elastic component, 11-connecting line, 12-elastic member, 121-spring, 20-sensing component, 21-sensing surface, 22-telescopic member, 30-mounting frame, 31-main body, 32-fixing member, 210-truss, 220-protruding portion, 221-step. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] Figure 1 is a schematic structural diagram of a step fall detection device according to an embodiment of the utility model, Figure 2 yes Figure 1 The schematic partial enlarged diagram of point A is shown. Figure 3 It is a schematic installation diagram of a step fall detection device according to an embodiment of the utility model.

[0033] like Figure 2As shown, the utility model provides a step-off detection device 100. The step-off detection device 100 is used to detect the installation state of the step 221 of the separated machine room type escalator 200. The escalator has a protruding portion 220 extending out of the truss 210. The step-off detection device 100 includes at least one elastic component 10 and at least one sensing component 20 arranged corresponding to each elastic component 10. The elastic component 10 includes at least one connecting wire 11 and at least one elastic member 12. The connecting wire 11 is located at the bottom of the protruding portion 220, and one end of the connecting wire 11 is connected to the end of the elastic member 12. , the elastic member 12 and the ends of the connecting line 11 away from each other are fixedly arranged, the elastic member 12 also includes a spring 121, the spring 121 is perpendicular to the extension direction of the elastic member 12, the sensing component 20 is arranged at the bottom of the elastic member 10, and the sensing component 20 includes a sensing surface 21, the sensing surface 21 is arranged to face the side of the spring 121 away from the fixed end of the elastic member 12 and is separated from the spring 121 by a preset distance, so that when the step 221 falls to the connecting line 11, the spring 121 moves to a position in contact with the sensing surface 21. Here, the number of elastic components 10 can be one or more, the number of sensing components 20 can be one or more, each elastic component 10 is arranged corresponding to one sensing component 20, and the protruding portion is located below the ground 300.

[0034] In this embodiment, an elastic component 10 and a sensing component 20 are arranged in the step fall detection device 100, wherein the connecting line 11 of the elastic component 10 is arranged so that when the step 221 falls to the connecting line 11, the spring piece 121 moves to a position in contact with the sensing surface 21, that is, when the step 221 falls, it falls on the connecting line 11, and the gravity of the step 221 itself drives the connecting line 11 to displace to drive the elastic member 12 to deform, thereby driving the spring piece 121 to move toward the side close to the sensing surface 21 until the spring piece 121 contacts the sensing surface 21 to trigger a sensing signal, and the controller receives the sensing signal to control the escalator to close, thereby avoiding safety hazards caused by the continued operation of the escalator, thereby ensuring the safety of the escalator operation.

[0035] In this embodiment, the connecting line 11 of the step-falling detection device 100 is arranged at the bottom of the protruding part 220 of the separated machine room type escalator 200, and the protruding part 220 is used for the rotation of the multiple steps 221 of the escalator, that is, the protruding part 220 is arranged at the other end of the truss 210 away from the sidewalk of the separated machine room type escalator 200. In other words, when the step 221 of the escalator falls, it will fall on the connecting line 11, and the weight of the step 221 drives the connecting line 11 to move downward, thereby driving the spring piece 121 to contact with the sensing surface 21 and send out a sensing signal, controlling the escalator to stop running in time, thereby realizing the step-falling detection device 100 to detect the safety status of the steps 221 of the separated machine room type escalator 200, and avoiding the occurrence of safety accidents.

[0036] In this embodiment, the size of the contact surface of the spring piece 121 facing the sensing surface 21 is larger than the size of the sensing surface 21, so that when the step 221 falls, the displacement of the connecting line 11 in any direction will drive the spring piece 121 to contact the sensing surface 21, thereby further improving the detection accuracy of the step fall detection device 100 and improving the operating safety of the separated machine room type escalator 200.

[0037] In the present embodiment, the number of elastic components 10 is one, and the number of corresponding sensing components 20 is one. The sensing component 20 is correspondingly arranged at one end below the elastic component 10 close to the elastic member 12. The sensing surface 21 of the sensing component 20 is spaced a preset distance from the spring piece 121, and the connecting line 11 is arranged at the bottom of the center position of the step 221 to ensure that the step 221 falls onto the connecting line 11 when it falls, thereby realizing the safety status detection of the separated machine room type escalator 200 and improving the safety of the separated machine room type escalator 200.

[0038] In this embodiment, a photoelectric detection device is provided at the truss 210 of the separated machine room type escalator 200, and the photoelectric detection device is used to detect whether the step 221 rotated to the truss 210 is loose. The photoelectric detection device and the step detachment detection device 100 are respectively arranged at the bottom of the truss 210 and the protruding part 220 of the separated machine room type escalator 200, and are used to respectively detect the looseness or detachment of the steps 221 at the truss 210 and the protruding part 220, thereby realizing double safety detection of the steps 221 of the separated machine room type escalator 200, and further improving the operation safety of the separated machine room type escalator 200.

[0039] In a further embodiment, the sensing component 20 further includes a telescopic member 22, one end of which is fixedly arranged, and the other end of which is fixedly connected to a side of the sensing surface 21 away from the spring sheet 121, so that when the spring sheet 121 contacts the sensing surface 21, the telescopic member 22 drives the sensing surface 21 to move toward the side away from the spring sheet 121. One end of the telescopic member 22 is fixedly connected to the sensing surface 21, and the telescopic member 22 is arranged to drive the sensing surface 21 to move toward the side away from the spring sheet 121 when the spring sheet 121 contacts the sensing surface 21, so as to avoid rigid contact between the spring sheet 121 and the sensing surface 21, which may cause hard damage to the sensing component 20, thereby ensuring the structural stability of the step fall detection device 100.

[0040] like Figure 1As shown, in a further embodiment, the step fall detection device 100 also includes at least one mounting frame 30 arranged corresponding to the sensing component 20, the mounting frame 30 is located at the bottom of the sensing component 20, the mounting frame 30 includes a main body 31 and fixing members 32 arranged at both ends of the main body 31, the fixing members 32 are used to fix the connection line 11 and the main body 31, the elastic component 10 and the main body 31, and one end of the connecting line 11 is connected to the end of the elastic member 12, and the ends of the elastic member 12 and the connecting line 11 away from each other are fixedly connected to the fixing member 32, and the sensing component 20 is arranged at one end of the main body 31 close to the elastic member 12, so that the connecting line 11 and the elastic member 12 form a structure parallel to the main body 31, so as to improve the detection accuracy of the step fall detection device 100. That is to say, above the mounting frame 30, a fixing member 32, a connecting line 11, an elastic member 12 and a fixing member 32 are sequentially provided along the extension direction of the main body 31, and the sensing component 20 is arranged at the bottom of the connection between the connecting line 11 and the elastic member 12, and is located on the side of the spring piece 121 close to the connecting line 11, so that when the step 221 falls, the contact position between the connecting line 11 and the step 221 is displaced downward, that is, the connecting line 11 is in a stretched state at this time and drives the elastic member 12 to deform toward the end where the connecting line 11 is located, thereby driving the spring piece 121 to contact the sensing surface 21 to send out a sensing signal of the step 221 falling, and control the separation room type escalator 200 to stop running, thereby avoiding safety hazards and improving the operation safety of the separation room type escalator 200.

[0041] like Figure 3 As shown, in a further embodiment, the main body 31 is configured so that its extension direction is parallel to the extension direction of the protruding portion 220 of the escalator, that is, the extension directions of the connecting line 11 and the elastic member 12 are parallel to the extension direction of the protruding portion 220 of the escalator, so that the connecting line 11 is always at the bottom of the step 221 of the protruding portion 220, so that the distance between the step 221 at any position below the protruding portion 220 and the connecting line 11 is equal, so that each time the step 221 falls, the displacement distance generated by the connecting line 11 is consistent, and the displacement distance driving the spring piece 121 to contact the sensing surface 21 is also the same. The step fall detection device 100 of the present embodiment can avoid the situation where the distances between the connecting wire 11 and the multiple steps 221 of the protruding portion 220 are different, and the step 221 falls and causes the connecting wire 11 to move too far, resulting in excessive elastic force when the spring piece 121 contacts the sensing surface 21, damaging the sensing component 20. At the same time, it can avoid the situation where the step 221 falls and causes the connecting wire 11 to move too far, resulting in the spring piece 121 not contacting the sensing surface 21 and failing to transmit the sensing signal of the step 221 falling. That is, the detection accuracy of the step fall detection device 100 is improved while the safety of the step fall detection device 100 is ensured.

[0042] In a further embodiment, the spacing ratio between the connecting line 11 and the main body 31 and the step 221 and the main body 31 is any value in the range of 1:5-2:3. The spacing ratio between the connecting line 11 and the main body 31 and the step 221 and the main body 31 can be 1:5, 1:3, 2:5, 1:2 or 2:3, or any other value in the range of 1:5-2:3. That is, when the spacing ratio between the connecting line 11 and the main body 31 and the step 221 and the main body 31 is within the above range, it can ensure that the step 221 falls on the connecting line 11 before changing from a horizontal state to a vertical state, thereby ensuring the detection accuracy of the step fall-off detection device 100, and avoiding the situation that the step 221 cannot fall onto the connecting line 11 due to the large distance between the step 221 and the connecting line 11, resulting in the step fall-off detection device 100 being unable to detect the step 221 falling off. At the same time, the step fall detection device 100 of this embodiment can prevent the step 221 from falling on the connecting line 11 due to the small distance between the step 221 and the connecting line 11, driving the spring piece 121 to be located at a distance smaller than the preset distance between the spring piece 121 and the sensing surface 21, thereby preventing the spring piece 121 from being unable to contact the sensing surface 21, resulting in a reduction in the detection accuracy of the step fall detection device 100.

[0043] In a further embodiment, the number of elastic components 10 is multiple, and the multiple elastic components 10 are evenly spaced along the width direction of the step 221. The multiple elastic components 10 are evenly spaced along the width direction of the step 221 at the bottom of the protruding portion 220, that is, the multiple connecting wires 11 are relatively parallelly arranged at the bottom of the protruding portion 220 and are evenly spaced, so as to reduce the distance between two adjacent connecting wires 11, reduce the risk that the step 221 cannot fall onto the connecting wire 11, and improve the detection accuracy of the step fall detection device 100.

[0044] In a further embodiment, the plurality of elastic components 10 have a preset width in a width direction parallel to the step 221, and the ratio of the preset width to the width of the step 221 is any value in the range of 0.5-1. The ratio of the preset width to the width of the step 221 can be 0.5, 0.6, 0.7, 0.75, 0.8, 0.9 or 1, or any other value in the range of 0.5-1. That is, a plurality of relatively parallel elastic components 10 are arranged at the bottom of the protruding portion 220, and the ratio of the preset width of the plurality of elastic components 10 to the width of the step 221 is 0.5-1, so that when the step 221 falls, the falling step 221 will fall on the connecting line 11 regardless of the rotation angle, thereby improving the detection accuracy of the step fall detection device 100.

[0045] In a further embodiment, the material of the connecting wire 11 is steel. In this embodiment, the high strength of the steel ensures that the connecting wire 11 will not break easily when subjected to tension. In addition, steel is relatively common and low in cost, and the length and diameter of the connecting wire 11 made of steel can be customized according to actual needs.

[0046] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A step-off detection device for detecting the installation state of steps of a separated machine room type escalator, wherein the escalator has a protruding portion extending out of a truss, characterized in that: The step falling detection device comprises: At least one elastic component, the elastic component comprising at least one connecting line and at least one elastic member, the connecting line is located at the bottom of the protruding portion, one end of the connecting line is connected to the end of the elastic member, the elastic member and one end of the connecting line away from each other are fixedly arranged, and the elastic member further comprises a spring sheet, which is perpendicular to the extension direction of the elastic member; At least one sensing component is arranged corresponding to each of the elastic components and is disposed at the bottom of the elastic component. The sensing component includes a sensing surface, which is arranged to face the side of the spring sheet away from the fixed end of the elastic member and to be spaced a preset distance from the spring sheet, so that when the step falls to the connecting line, the spring sheet moves to a position in contact with the sensing surface.

2. The step falling detection device according to claim 1, characterized in that: The sensing component also includes: A telescopic member, one end of which is fixedly arranged, and the other end is fixedly connected to a side of the sensing surface away from the spring sheet, so that when the spring sheet contacts the sensing surface, the telescopic member drives the sensing surface to move toward the side away from the spring sheet.

3. The step fall detection device according to claim 2, characterized in that: Also includes: At least one mounting frame arranged corresponding to the sensing component is located at the bottom of the sensing component, and the mounting frame includes a main body and fixing members arranged at both ends of the main body, and the fixing members are used to fix the connection line and the main body, the elastic component and the main body.

4. The step fall detection device according to claim 3, characterized in that: The main body is arranged such that its extending direction is parallel to the extending direction of the protruding portion of the escalator.

5. The step fall detection device according to claim 4, characterized in that: The spacing ratio between the connecting line and the main body and between the step and the main body is any value in the range of 1:5-2:

3.

6. The step fall detection device according to claim 5, characterized in that: There are multiple elastic components, and the multiple elastic components are evenly spaced along the width direction of the step.

7. The step fall detection device according to any one of claims 1 to 6, characterized in that: The plurality of elastic components have a preset width in a width direction parallel to the step, and a ratio of the preset width to the width of the step is any value in a range of 1:2-1:

1.

8. The step fall detection device according to claim 7, characterized in that: The connecting wire is made of steel.

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