An integrated power supply device for stairwell escalators

Abstract

This utility model discloses an integrated power supply device for a stairwell elevator, comprising a circular tube, a conductive tube, and a power-collecting component. The circular tube has a groove, and a first limiting protrusion is fixedly connected to the inner wall of the circular tube near the groove. The circular tube also has a first mounting groove matching the conductive tube, located on one side of the first limiting protrusion. The power-collecting component is slidably connected inside the circular tube and is used to collect power from the conductive tube. Compared with existing technologies, this integrated power supply device for a stairwell elevator allows for separate replacement and maintenance of the elevator or power supply unit, significantly reducing maintenance time and costs, minimizing prolonged elevator downtime due to maintenance, and improving user experience.

Description

Technical Field

[0001] This utility model belongs to the technical field of stairwell riding ladder accessories, specifically relating to an integrated power supply device for stairwell riding ladders. Background Technology

[0002] In current stairwell escalator designs, to support electric drive, a special track is typically installed inside the stairwell. A power supply bar is embedded within the track, and the walking mechanism draws power from the power supply bar via carbon brushes. The advantage of this method is that it provides a stable power supply to the escalator, ensuring the normal operation of its electric drive function.

[0003] Over prolonged use, carbon brushes gradually wear down. Once the carbon brushes have worn down to a certain extent, they must be replaced. Existing designs typically embed carbon brushes inside the travel mechanism, such as the ceiling-mounted stairwell elevator disclosed in publication number CN207748709U. While embedding carbon brushes inside the travel mechanism effectively provides power, the replacement process is relatively cumbersome. Specifically, replacing carbon brushes requires disassembling the travel mechanism, which not only increases maintenance time and costs but also leaves the stairwell elevator in a maintenance state for extended periods, impacting the user experience.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated power supply device for stairwell elevators, which can solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows: An integrated power supply device for a stairwell escalator includes a circular tube, a conductive tube, and a power-collecting component. The circular tube has a groove, and a first limiting protrusion is fixedly connected to the inner wall of the circular tube near the groove. The circular tube also has a first mounting groove that matches the conductive tube, located on one side of the first limiting protrusion. The power-collecting component is slidably connected inside the circular tube and is used to collect power from the conductive tube.

[0007] In one or more embodiments of this utility model, the power-gathering component includes an insulator, a roller that matches the inner wall of a circular tube is rotatably connected to the side of the insulator, a threaded rod is fixedly connected to the upper end of the insulator, the threaded rod passes through a sliding groove, and a nut is threaded onto the threaded rod.

[0008] In one or more embodiments of this utility model, the inner wall of the circular tube is fixedly connected with a second limiting protrusion that matches the roller, and the second limiting protrusion has a groove that matches the roller.

[0009] In one or more embodiments of this utility model, a second mounting groove is provided on the insulator, a carbon brush is installed in the second mounting groove, a conductive element matching the carbon brush is installed in the insulator, one end of the carbon brush is in contact with the conductive element, and the other end of the carbon brush is in contact with the conductive tube.

[0010] In one or more embodiments of this utility model, a wire is fixedly connected to the conductive element.

[0011] In one or more embodiments of this utility model, a through hole is provided on the threaded rod, and one end of the wire passes through one end of the through hole and exits from the other end of the through hole.

[0012] In one or more embodiments of this utility model, a multi-axis connecting bracket is further included, one end of which is fixedly connected to the power supply component, and the other end of which is fixedly connected to the stairwell ladder.

[0013] In one or more embodiments of this utility model, the height of the first limiting protrusion is higher than the height of the conductive tube.

[0014] Compared with the prior art, the integrated power supply device for a stairwell elevator of this utility model has a separate stairwell elevator, which makes it easy to replace and maintain the stairwell elevator or the power supply device separately, greatly reducing the time and cost of maintenance, reducing the situation where the stairwell elevator is not usable for a long time due to maintenance, and improving the user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an integrated power supply device for a stairwell ladder according to one embodiment of the present invention; Figure 2 This is a front view of an integrated power supply device for a stairwell ladder according to one embodiment of the present invention; Figure 3 This is a partial exploded view of an integrated power supply device for a stairwell ladder according to one embodiment of the present invention; Figure 4 This is a partial cross-sectional view of the power-harvesting component in one embodiment of the present invention.

[0017] Explanation of key figure labels: 1. Circular tube; 101. Slide groove; 102. First mounting groove; 2. First limiting protrusion; 3. Second limiting protrusion; 301. Groove; 4. Conductive tube; 5. Power collection component; 6. Insulator; 601. Second mounting groove; 602. Weight reduction groove; 7. Roller; 8. Conductive component; 9. Carbon brush; 10. Threaded rod; 1001. Through hole; 11. Wire; 12. Nut. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0019] like Figures 1-3 As shown in the figure, an integrated power supply device for a stairwell ladder in one embodiment of this utility model includes a circular tube 1. The circular tube 1 is generally made of materials with certain flexibility and mechanical strength, such as polyvinyl chloride, polypropylene, and polyethylene. A Shore hardness between 50 and 90A is more suitable, which facilitates subsequent bending and ensures stability during use.

[0020] like Figures 1-3 As shown, a groove 101 is provided on the circular tube 1, and a first limiting protrusion 2 is fixedly connected to the opposite surface of the groove 101. A first mounting groove 102 is also provided on the circular tube 1, which is located on one side of the first limiting protrusion 2. A conductive tube 4 that matches the first mounting groove 102 is installed on the circular tube 1, and the height of the conductive tube 4 is less than the height of the first limiting protrusion 2.

[0021] like Figures 1-3 As shown, a power-collecting assembly 5 is slidably connected inside the circular tube 1. The power-collecting assembly 5 includes an insulator 6, and a roller 7 that matches the inner wall of the circular tube 1 is rotatably connected to the side wall of the insulator 6. A weight-reducing groove 602 is provided on the insulator 6 to reduce the weight of the insulator 6 and save production costs. A threaded rod 10 that matches the slide groove 101 is fixedly connected to the insulator 6. The threaded rod 10 passes through the slide groove 101, and a nut 12 is threadedly connected to the threaded rod 10. The nut 12 is located outside the circular tube 1.

[0022] When nut 12 is tightened, the upper end face of insulator 6 contacts one end face of the first limiting protrusion 2, ensuring that insulator 6 does not contact conductive tube 4. In actual use, nut 12 should not be tightened too much to avoid excessive friction between the first limiting protrusion 2 and insulator 6, which could affect the smoothness of sliding of power-taking component 5 within circular tube 1.

[0023] like Figures 1-4 As shown, a second mounting groove 601 is provided on the insulator 6, and a carbon brush 9 matching the second mounting groove 601 is mounted on the insulator 6. A conductive element 8 matching the second mounting groove 601 is also mounted on the insulator 6. When the insulator 6 is installed inside the circular tube 1, it should be ensured that one end of the carbon brush 9 is in contact with the conductive element 8, and the other end of the carbon brush 9 is in contact with the conductive tube 4. The conductive tube 4 transmits electricity to the conductive element 8 through the carbon brush 9.

[0024] Specifically, there are two sets of conductive components 8, each corresponding to one of two conductive tubes 4, which are the neutral wire and the live wire, respectively. A wire 11 is fixedly connected to each conductive component 8. A through hole 1001 is formed on the threaded rod 10, penetrating the insulator 6. The wire 11 enters the threaded rod 10 from the end closest to the insulator 6 and exits from the other end. This ensures that the wire 11 does not affect the sliding of the insulator 6 within the circular tube 1, thus providing some protection for the wire 11.

[0025] like Figures 1-3 As shown, to further ensure the stability of the power-collecting component 5 during its sliding process within the circular tube 1, several sets of second limiting protrusions 3 matching the rollers 7 are fixedly connected to the inner wall of the circular tube 1. The second limiting protrusions 3 have grooves 301 matching the rollers 7. During installation, the rollers 7 simply engage with the grooves 301. Due to the presence of the grooves 301, the rollers 7 can slide along the direction set by the grooves 301.

[0026] In practical use, since the power supply device is installed in a stairwell with bends, the circular tube 1 and the second limiting protrusion 3 are bent according to the site conditions to allow the device to be bent on-site. The material of the circular tube 1 should be selected with better flexibility, or the wall thickness of the outer tube should be appropriately increased in the design to improve its resistance to deformation during on-site bending. The conductive tube 4 can be a flexible metal hose, and the conductive tube 4 should have good conductivity to avoid problems such as breakage or blockage of the inner tube during on-site bending.

[0027] Normally, the conductive tube 4 and the circular tube 1 are fixed by welding or other fixed connection methods. Of course, the connection method of the conductive tube 4 and the circular tube 1 can also be adjusted so that it can better adapt to relative displacement during bending, for example, by using a looser clamp fixing method.

[0028] In addition, the power supply device also includes a multi-axis connecting bracket (not shown in the figure). One end of the multi-axis connecting bracket is fixedly connected to the power receiving component 5, and the other end of the multi-axis connecting bracket is fixedly connected to the stairwell ladder. The stairwell ladder carries the power receiving component 5 to slide along the direction set by the circular tube 1, and can draw power at any time during the sliding process.

[0029] In use, the carbon brush 9 needs to be installed in the second mounting slot 601 first, then the insulator 6 is slid into the circular tube 1, and then the threaded rod 10 is threaded to connect the nut 12. The nut 12 is screwed onto the outside of the circular tube 1 to fix the insulator 6. Then the wire 11 is connected to the stairwell ladder. After the connection is made, the two conductive tubes 4 are energized to supply power to the stairwell ladder.

[0030] The power supply device of this utility model has a simple structure and is set separately from the stairwell ladder, which facilitates the separate replacement and maintenance of the stairwell ladder or the power supply device. Depending on the different materials of the circular tube 1 and conductive tube 4, as well as the changes in the process, the power supply device can be bent on-site according to the shape of the stairwell for on-site installation, simplifying the installation operation and improving the installation efficiency.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated power supply device for a stairwell escalator, characterized in that, include: A circular tube, wherein a groove is provided on the circular tube, and a first limiting protrusion is fixedly connected to one end of the inner wall of the circular tube near the groove; A conductive tube, wherein a first mounting groove matching the conductive tube is provided on the circular tube, and the first mounting groove is located on one side of the first limiting protrusion; A power-harvesting component is slidably connected inside a circular tube and is used to harvest electricity from the conductive tube.

2. The integrated power supply device for a stairwell ladder according to claim 1, characterized in that, The power extraction component includes an insulator, on the side of which a roller matching the inner wall of a circular tube is rotatably connected, and at the upper end of the insulator a threaded rod is fixedly connected, the threaded rod passing through a groove, and a nut is threaded onto the threaded rod.

3. The integrated power supply device for a stairwell ladder according to claim 2, characterized in that, The inner wall of the circular tube is fixedly connected to a second limiting protrusion that matches the roller, and the second limiting protrusion has a groove that matches the roller.

4. An integrated power supply device for a stairwell ladder according to claim 2 or 3, characterized in that, The insulator has a second mounting groove, in which a carbon brush is installed. A conductive element matching the carbon brush is installed inside the insulator. One end of the carbon brush is in contact with the conductive element, and the other end of the carbon brush is in contact with the conductive tube.

5. The integrated power supply device for a stairwell ladder according to claim 4, characterized in that, The conductive component is fixedly connected with wires.

6. The integrated power supply device for a stairwell ladder according to claim 5, characterized in that, The threaded rod has a through hole, and one end of the wire passes through one end of the through hole and exits from the other end of the through hole.

7. The integrated power supply device for a stairwell ladder according to claim 1, characterized in that, It also includes a multi-axis connecting bracket, one end of which is fixedly connected to the power supply component, and the other end of which is fixedly connected to the stairwell ladder.

8. The integrated power supply device for a stairwell ladder according to claim 1, characterized in that, The height of the first limiting protrusion is higher than the height of the conductive tube.

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