handrail

Abstract

Handrail, characterized in that it comprises: a tube in which a light strip is arranged extending in the axial direction of the tube and a battery used to supply the light strip with electrical energy are provided, two sensor assemblies arranged at two ends of the tube, each comprising an infrared sensor and a controller, wherein the infrared sensor, the light strip and the battery are electrically connected to the controller, wherein the infrared sensor is used to detect the approach of a human body, wherein the controller can receive a signal sent by the infrared sensor to control the battery so that the light strip is supplied with electrical energy.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the technical field of handrails, in particular a handrail. STATE OF THE ART

[0002] A handrail is a device designed to facilitate ascent or descent of stairs, or movement on foot along the stairs or a guardrail, which can reduce the risk of falls. In dark environments, poor lighting makes existing handrails difficult to locate, thus rendering their function of preventing falls ineffective and thus compromising the user experience. DISCLOSURE OF THE UTILITY MODEL

[0003] The object of the present utility model is to at least partially solve the technical problem in the prior art. Therefore, the present utility model provides a handrail that can control the light strip to illuminate upon detecting the approach of a human body, allowing users to more easily find the pipe in a dark environment, reducing the risk of falls and thus improving the user experience.

[0004] According to the present utility model, a handrail is provided, comprising a tube and two sensor assemblies. A light strip arranged extending in the axial direction of the tube and a battery used to supply electrical power to the light strip are provided in the tube. The two sensor assemblies are arranged at two ends of the tube and each include an infrared sensor and a controller. The infrared sensor, the light strip, and the battery are electrically connected to the controller. The infrared sensor is used to detect the approach of a human body. The controller can receive a signal sent from the infrared sensor to control the battery so that the light strip is supplied with electrical power.

[0005] The handrail of one embodiment of the present utility model has at least the following advantageous effects: When approaching the pipe from either end of the pipe, the infrared sensor at the end of the pipe detects the approach of the human body, and a signal is sent to the controller. The controller receives the signal sent by the infrared sensor to control the battery, so that the light strip is supplied with electrical energy and thus illuminates. Since the light strip is arranged extending in the axial direction of the pipe, so that the pipe emits light in the axial direction, the pipe can be more easily visible in a dark environment, assisting ascending or descending stairs or walking, reducing the risk of falls, and thus improving the user experience.

[0006] According to some embodiments of the utility model, the sensor assembly further comprises a light-sensitive sensor that is electrically connected to the controller and is used to detect the light intensity in the environment, wherein, at a light intensity that is higher than a predetermined value, the controller receives a signal sent by the light-sensitive sensor to control the battery so that the supply of electrical energy to the light strip is stopped.

[0007] According to some embodiments of the utility model, the sensor assembly further comprises a connecting element inserted into one end of the pipe, and an end cap threadably connected to an end of the connecting element remote from the pipe and adapted to bear against the end of the pipe to restrict insertion of the connecting element into the pipe, wherein the infrared sensor is disposed on the end cap.

[0008] According to some embodiments of the utility model, the sensor assembly further comprises a mounting sleeve in which the infrared sensor is arranged, wherein an insertion hole is provided at an end of the end cover facing away from the pipe, into which the mounting sleeve is inserted, and wherein an annular flange is provided protruding on an outer peripheral side of the mounting sleeve, which annular flange can bear against the end cover to restrict the insertion of the mounting sleeve into the insertion hole.

[0009] According to some embodiments of the utility model, it is provided that a plurality of light-permeable openings are provided on a side wall of the tube, which openings are arranged at equal distances from one another in the axial direction of the tube.

[0010] According to some embodiments of the utility model, it is provided that an end of the connecting element facing away from the end cover is fixedly connected to connecting blocks, wherein a mounting chamber is provided in one of the connecting blocks in which the battery is mounted.

[0011] According to some embodiments of the utility model, it is provided that a transparent sleeve in which the light strip is arranged is provided in an interior of the tube, wherein two ends of the transparent sleeve are each connected by thread to a fastening seat, and wherein the fastening seat is inserted in the transparent sleeve.

[0012] According to some embodiments of the utility model, it is provided that an end of the fastening seat facing away from the transparent sleeve is connected to a movable block, wherein first electrical contacts, of which two first electrical contacts are connected to one another by electrical wire, are provided at an end of the movable block facing away from the fastening seat, wherein second electrical contacts, of which one is electrically connected to the infrared sensor at one end of the tube and another to the controller at the other end of the tube, are provided at an end of the connecting block facing the movable block, and wherein the first electrical contacts can bear against the second electrical contacts, so that the infrared sensor at one end of the tube is electrically connected to the controller at the other end of the tube.

[0013] According to some embodiments of the utility model, it is provided that at the end of the connecting block facing the movable block, a plurality of first positioning rods are arranged axially protruding and spaced from one another in the circumferential direction of the connecting block, wherein a plurality of first positioning holes are provided in the movable block, which uniquely correspond to the first positioning rods and in which the first positioning rods are inserted.

[0014] According to some embodiments of the utility model, it is provided that the movable block is slidably connected to the mounting seat, wherein a spring is provided between the movable block and the mounting seat, wherein the two ends of the spring abut the mounting seat and the movable block, respectively, and wherein the spring can drive the movable block in a sliding movement in a direction away from the mounting seat.

[0015] The additional aspects and advantages of the utility model are partly indicated in the description below and partly made clearer by the description below or understood through practice of the utility model. BRIEF DESCRIPTION OF THE CHARACTERS

[0016] The above-mentioned and / or additional aspects and advantages of the utility model will be more clearly and easily understood through the following description of the embodiments in conjunction with the figures. They show: Fig. 1 is a schematic structural view of the handrail according to an embodiment of the utility model; Fig. 2 a sectional view of the handrail according to the embodiment of the utility model; Fig. 3 an enlarged section of point A in Fig. 2; Fig. 4 is a schematic partial exploded view of one end of the handrail according to the embodiment of the utility model; Fig. 5 shows a further schematic partial exploded view of the handrail according to an embodiment of the utility model; Fig. 6 is a schematic partial exploded view of another end of the handrail according to the embodiment of the utility model; Fig. 7 is a schematic structural view of one of the connecting blocks of the handrail according to the embodiment of the utility model; Fig. 8 is a schematic structural view of a movable block of the handrail according to the embodiment of the utility model; Fig. 9 is another schematic structural view of the movable block of the handrail according to an embodiment of the utility model; Fig. 10 is a schematic structural view of a fastening seat of the handrail according to an embodiment of the utility model; and Fig. 11 is a schematic structural view of a mounting sleeve of the handrail according to an embodiment of the utility model. DETAILED EMBODIMENTS

[0017] The exemplary embodiments of the utility model shown in the figures are described in more detail below. The same or similar reference numerals always refer to the same or similar or functionally identical or similar elements. The exemplary embodiments described below with reference to the figures are exemplary and serve only to explain the utility model without limiting it.

[0018] It should be noted that, in the context of the positional description, the direction or positioning designated by the terms "top," "bottom," "front," "back," "left," "right," etc., is used in relation to the direction or positioning shown in the respective illustration, solely to describe the utility model and, where appropriate, to simplify the description. These terms neither implicitly nor explicitly refer to the positioning, design, and operation of the device or element in question in a predetermined position, so they do not constitute a limitation of the utility model here.

[0019] In the description of the utility model, the term "some" means "one or more," and "multiple" means two or more affected elements. Expressions such as "greater than," "less than," "over," and the like are to be understood as meaning that the limit is not included in the range, while expressions such as "above," "below," "within," and the like are to be understood as meaning that the limit is included. Expressions such as "first," "second," etc., serve only to distinguish individual technical features, without indicating or indicating the relative importance, number, or order of the affected technical features.

[0020] Unless otherwise stated, the terms “provide”, “assemble”, “connect” in the description of the utility model should be understood in a broad sense, and a person skilled in the art can adequately determine the specific meaning of the terms in the utility model in connection with the concrete content of the technical solution.

[0021] It is to be understood that with reference to Fig. 1 to Fig. 11, a handrail according to the present utility model comprises a tube 100 and two sensor assemblies 200. A light strip 300 and a battery 400 are provided in the tube 100. The light strip 300 is arranged extending in the axial direction of the tube 100. The battery 400 is used to supply the light strip 300 with electrical power. The two sensor assemblies 200 are arranged at two ends of the tube 100. The sensor assembly 200 includes an infrared sensor 210 and a controller 220. The infrared sensor 210, the light strip 300, and the battery 400 are electrically connected to the controller 220. The infrared sensor 210 is used to detect the approach of a human body. The controller 220 may receive a signal sent from the infrared sensor 210 to control the battery 400 so that the light strip 300 is supplied with electrical energy.

[0022] When approaching the tube 100 from either end, the infrared sensor 210 at the end of the tube 100 detects the proximity, and a signal is sent to the controller 220. The controller 220 receives the signal sent by the infrared sensor 210 to control the battery 400, supplying electrical power to the light strip 300, thereby illuminating the light strip 300. Since the light strip 300 is arranged extending in the axial direction of the tube 100, so that the tube 100 emits light in the axial direction, the tube 100 can be more easily visible in dark environments, assisting with ascending or descending stairs or walking, reducing the risk of falls, and thus improving the user experience.

[0023] After leaving the handrail, the controller 220 may also, after a predetermined period of time, control the battery 400 to stop supplying electrical energy to the light strip 300 and turn off the light strip 300.

[0024] In addition, wireless power supply can be provided by the battery 400 to reduce the slotting and wiring work for connecting to an external power supply and thus increase flexibility in use.

[0025] It should be noted that during use, the battery 400 constantly supplies the infrared sensor 210 with electrical energy to detect the approach of a human body.

[0026] The infrared sensors 210 at both ends of the tube 100 are connected in parallel to each other in the circuit so that the two infrared sensors 210 can each send a signal to the controller 220 to control the switching on of the light strip 300 and the illumination thereby to enable the emission of light from each end of the tube 100 after detection when ascending or descending the stairs.

[0027] The tube 100 may be a transparent component so that the light emitted by the light strip 300 is used to illuminate through the tube 100.

[0028] Furthermore, the handrail according to the utility model is also applicable to a door. As a door handle, it can control the light strip 300 to emit light upon detecting the approach of a human body, making the pipe more visible in a dark environment, and then opening the door by operating the handle, thus improving the user experience.

[0029] It is to be understood that with reference to Fig. 2, Fig. 5 and Fig. 6, the sensor assembly 200 further comprises a light-sensitive sensor 230. The light-sensitive sensor 230 is electrically connected to the controller 220. The light-sensitive sensor 230 is used to detect the ambient light intensity. When the light intensity is higher than a predetermined value, the controller 220 receives a signal sent from the light-sensitive sensor 230 to control the battery 400 so that the supply of electrical energy to the light strip 300 is stopped. By detecting the ambient light intensity by the light-sensitive sensor 230 and sending the signal to the controller 220, the battery 400 can be controlled to stop the supply of electrical energy to the light strip 300 and turn off the light strip 300 to save electrical energy in an environment with sufficient light.

[0030] It should be noted that the light-sensitive sensor 230 and the infrared sensor 210 are connected in series in the circuit so that they jointly control the switching on of the light strip 300 and the illumination thereby.

[0031] It is to be understood that with reference to Fig. 1 to Fig. 6, the sensor assembly 200 further comprises a connecting element 240 and an end cap 250. The connecting element 240 is inserted into one end of the tube 100. The end cap 250 is threadably connected to an end of the connecting element 240 remote from the tube 100, and the end cap 250 can abut against the end of the tube 100 to restrict the insertion of the connecting element 240 into the tube 100. The infrared sensor 210 is disposed on the end cap 250. Since the infrared sensor 210 is disposed on the end cap 250, screwing the end cap 250 onward threadably connects the end cap 250 to the connecting element 240. Then, the connector 240 is inserted into one end of the tube 100 until the end cap 250 abuts the end of the tube 100 to restrict the insertion of the connector 240 into the tube 100 and thus facilitate the installation of the infrared sensor 210 and the closure of the end of the tube 100.

[0032] It should be noted that a first sealing ring 241 is mounted on the connecting element 240. The two sides of the first sealing ring 241 rest against the connecting element 240 and the pipe 100, respectively. This improves the tightness between the connecting element 240 and the pipe 100, reducing the possibility of moisture or dust from the outside penetrating the interior of the pipe 100.

[0033] In particular with reference to Fig. 1 to Fig. 6 and Fig. 11, the sensor assembly 200 further includes a mounting sleeve 260. The infrared sensor 210 is arranged in the mounting sleeve 260. An insertion hole 251 is provided at an end of the end cap 250 facing away from the pipe 100. The mounting sleeve 260 is inserted into the insertion hole 251. An annular flange 261 is protrudingly provided on an outer peripheral side of the mounting sleeve 260. The annular flange 261 can abut the end cap 250 to restrict the insertion of the mounting sleeve 260 into the insertion hole 251. Since the infrared sensor 210 is arranged on the mounting sleeve 260, inserting the mounting sleeve 260 into the insertion hole 251 until the annular flange 261 abuts the end cover 250 restricts the insertion of the mounting sleeve 260 into the insertion hole 251 to thereby mount and fix the infrared sensor 210 to the end cover 250.

[0034] It should be noted that a hemispherical lens 263 is mounted on the infrared sensor 210. The hemispherical lens 263 is connected to an end of the mounting sleeve 260 facing away from the connecting element 240. The hemispherical lens 263 is arranged to protrude outward. The hemispherical lens 263 protects the infrared sensor 210 to extend the service life of the infrared sensor 210. Furthermore, since the hemispherical lens 263 is arranged to protrude outward, the infrared light emitted by the infrared sensor 210 can be reflected around the infrared sensor by the hemispherical lens 263, thereby expanding the detection range of the infrared sensor 210 and increasing the detection sensitivity.

[0035] A second sealing ring 262 is mounted on the outside of the mounting sleeve 260. The two sides of the second sealing ring 262 rest against the mounting sleeve 260 and an inner wall of the insertion hole 251, respectively. This improves the seal between the mounting sleeve 260 and the inner wall of the insertion hole 251, reducing the possibility of moisture or dust from the outside penetrating the interior of the tube 100 along the insertion hole 251.

[0036] It is to be understood that with reference to Fig. 1, a plurality of translucent openings 110 are provided on a side wall of the tube 100. The plurality of translucent openings 110 are arranged at equal spacings in the axial direction of the tube 100. The light emitted by the light strip 300 radiates through the translucent openings 110, which are arranged at equal spacings in the axial direction of the tube 100, thus enabling both axially uniform illumination through the tube 100 and oriented illumination through the tube 100 on one side, making the light more uniform and softer, reducing the likelihood of glare, and thus improving the user experience.

[0037] It should be noted that a mounting frame 120 is securely mounted on the tube 100, so that the tube 100 is securely connected to the stairs by the mounting frame 120. After the tube 100 is securely mounted, the translucent opening 110 is located in a lower side wall of the tube 100, so that the light is transmitted downward and illuminates the floor, which helps the user identify the stairs below and thus reduces the risk of falls.

[0038] In particular with reference to Fig. 2 to Fig. 7, an end of the connecting element 240 facing away from the end cover 250 is fixedly connected to connecting blocks 270, wherein a mounting chamber 271 is provided in one of the connecting blocks 270, and the battery 400 is mounted in the mounting chamber 271. By providing a mounting chamber 271 in one of the connecting blocks 270 and mounting the battery 400 in the mounting chamber 271, the installation and positioning of the battery 400 can be facilitated. In addition, since the connecting blocks 270 are fixedly connected to the end of the connecting element 240, pulling out the connecting element 240 pulls out the connecting blocks 270 and the battery 400 mounted thereon together, which facilitates the installation and replacement of the battery 400.

[0039] In particular with reference to Fig. 1, Fig. 2, Fig. 6 and Fig. 10, a transparent sleeve 500 is provided in an interior of the tube 100. The light strip 300 is arranged in the transparent sleeve 500. Two ends of the transparent sleeve 500 are each connected to a fastening seat 600 by threads. The fastening seat 600 is inserted into the transparent sleeve. Since the light strip 300 is arranged in the transparent sleeve 500, the light strip 300 is protected by the transparent sleeve 500, so that the service life of the light strip 300 can be extended. In addition, by connecting the fastening seats 600 at two ends of the transparent sleeve 500 by threads and then inserting the fastening seats 600 into the sleeve, the transparent sleeve 500 can be firmly mounted in the tube 100, so that the installation and replacement of the transparent sleeve 500 is simplified.

[0040] It should be noted that a third sealing ring 620 is mounted on the mounting seat 600. The two sides of the third sealing ring 620 rest against the mounting seat 600 and the tube 100, respectively. This improves the seal between the mounting seat 600 and the tube 100 to reduce the penetration of moisture or dust from the outside.

[0041] If the controller 220 is directly electrically connected to the light strip 300 by an electrical wire, when the connection block 270 and the battery 400 mounted thereon are pulled out to replace the battery 400, a long electrical wire is required to connect the controller 220 at one end of the tube 100 and the infrared sensor 210 at the other end of the tube 100 to enable the connection block 270 to be pulled out, since the controller 220 is also arranged in the connection block 270. Thus, the electrical wire also occupies the interior of the tube 100, making cable routing difficult.

[0042] In particular with reference to Fig. 2 to Fig. 10, an end of the mounting seat 600 facing away from the transparent sleeve 500 is connected to a movable block 700. First electrical contacts 710 are provided at an end of the movable block 700 facing away from the mounting seat 600. Two first electrical contacts 710 are connected to each other by electrical wire. Second electrical contacts 272 are provided at an end of the connecting block 270 facing the movable block 700. The two second contacts 272 are each electrically connected to the infrared sensor 210 at one end of the tube 100 and to the controller 220 at the other end of the tube 100. The first electrical contacts 710 can abut the second electrical contacts 272, so that the infrared sensor 210 at one end of the tube 100 is electrically connected to the controller 220 at the other end of the tube 100.By electrically connecting the infrared sensor 210 at one end of the tube 100 to the controller 220 at the other end of the tube 100 via the engagement of the first electrical contact 710 with the second electrical contact 272, the wiring requirement can be reduced and the serviceability of the battery replacement of the battery 400 can be improved.

[0043] It should be noted that the first electrical contact 710 and the second electrical contact 272 are each provided with a magnetic seat 711 and a pin 712. The pin 712 is fixedly arranged on the magnetic seat 711. The abutment of the pins 712 establishes an electrical connection between the first electrical contact 710 and the second electrical contact 272. The magnetic seat 711 of the first electrical contact 710 has an opposite magnetic polarity with respect to the magnetic seat 711 of the second electrical contact 272, so that the stability of the connection is increased by magnetic attraction.

[0044] In particular with reference to Fig. 7 and Fig. 8, a plurality of first positioning rods 273 are arranged axially protruding at the end of the connecting block 270 facing the movable block 700. The plurality of first positioning rods 273 are spaced apart from one another in the circumferential direction of the connecting block 270. A plurality of first positioning holes 720 are provided in the movable block 700. The first positioning rods 273 correspond uniquely to the first positioning holes 720. The first positioning rods 273 are inserted into the first positioning holes 720.Since the plurality of first positioning rods 273 are arranged spaced apart from each other in the circumferential direction of the connecting block 270, when the connecting block 270 and the movable block 700 are assembled, the relative position of the connecting block 270 to the movable block 700 in the circumferential direction is determined by inserting the first positioning rods 273 into the first positioning holes 720 to enable the aligned abutment of the first electrical contact 710 against the second electrical contact 272 and thus increase the stability of the connection.

[0045] In particular with reference to Fig. 2, Fig. 3 and Fig. 6, the movable block 700 is slidably connected to the mounting seat 600. A spring 800 is provided between the movable block 700 and the mounting seat 600. The two ends of the spring 800 abut the mounting seat 600 and the movable block 700, respectively. The spring 800 can drive the movable block 700 in a sliding movement in the direction away from the mounting seat 600. The sliding of the movable block 700 in the direction away from the mounting seat 600, offset by the spring 800, and the resulting movement of the first electrical contact 710 towards the second electrical contact 272 and abutment of the same against the second electrical contact 272, can increase the stability of the connection. The spring 800 can adjust the distance between the movable block 700 and the mounting seat 600 in order to compensate for the assembly tolerance due to the manufacturing tolerance of the pipe 100 or the tube 100.the transparent sleeve 500 and thus increase the stability of the contact of the first electrical contact 710 with the second electrical contact 272.

[0046] It should be noted that with reference to Fig. 3, a screw 900 penetrates the movable block 700, and the movable block 700 can slide in the axial direction of the screw 900. The screw 900 is threadably connected to the mounting seat 600. The screw head of the screw 900 can abut against the movable block 700 to restrict the movement of the movable block 700 in the direction away from the mounting seat 600. By restricting the sliding distance of the movable block 700, the stability of the movement of the movable block 700 can be increased.

[0047] The spring 800 is placed on the screw 900, and the compression and recovery directions of the spring 800 are restricted by the screw 900, so that the spring 800 is deformed in the axial direction of the screw 900 by compression or recovery to increase the stability of the spring 800 during compression or recovery.

[0048] With reference to Fig. 9 and Fig.10, a plurality of second positioning rods 730 are arranged axially protruding at the end of the movable block 700 facing the mounting seat 600. The plurality of second positioning rods 730 are spaced apart from one another in the circumferential direction of the movable block 700. A plurality of second positioning holes 610 are provided in the mounting seat 600. The second positioning rods 730 correspond uniquely to the second positioning holes 610. The second positioning rods 730 penetrate the second positioning holes 610. Since the plurality of second positioning rods 730 are arranged spaced from each other in the circumferential direction of the movable block 700, the relative position of the fixing seat 600 to the movable block 700 in the circumferential direction is determined by inserting the second positioning rods 730 into the second positioning holes 610 to prevent the rotation of the fixing seat 600 relative to the movable block 700.

[0049] The embodiments of the present utility model were described in detail above in conjunction with the figures, but the utility model is not intended to be limited thereto. Various modifications may be made within the scope of the expert's knowledge without deviating from the concept of the utility model. List of reference symbols

[0050] Tube 100, translucent opening 110, mounting frame 120, sensor assembly 200, infrared sensor 210, controller 220, light-sensitive sensor 230, connecting element 240, first sealing ring 241, end cover 250, insert hole 251, mounting sleeve 260, annular flange 261, second sealing ring 262, hemispherical lens 263, connecting block 270, mounting chamber 271, second electrical contact 272, first positioning rod 273, light strip 300, battery 400, transparent sleeve 500, mounting seat 600, second positioning hole 610, third sealing ring 620, movable block 700, first electrical contact 710, magnetic seat 711, pin 712, first positioning hole 720, second positioning rod 730, spring 800, screw 900.

Claims

[1] Handrail, characterized by that it includes: a tube in which a light strip is arranged extending in the axial direction of the tube and a battery used to supply the light strip with electrical energy are provided, two sensor assemblies arranged at two ends of the tube, each comprising an infrared sensor and a controller, wherein the infrared sensor, the light strip and the battery are electrically connected to the controller, wherein the infrared sensor is used to detect the approach of a human body, wherein the controller can receive a signal sent by the infrared sensor to control the battery so that the light strip is supplied with electrical energy. [2] Handrail according to claim 1, characterized bythat the sensor assembly further comprises a light-sensitive sensor which is electrically connected to the controller and is used to detect the light intensity in the environment, wherein at a light intensity which is higher than a predetermined value, the controller receives a signal sent by the light-sensitive sensor to control the battery so that the supply of electrical energy to the light strip is stopped. [3] Handrail according to claim 1, characterized by that the sensor assembly further comprises a connecting element inserted into one end of the pipe, and an end cap threadably connected to an end of the connecting element facing away from the pipe and adapted to bear against the end of the pipe to restrict insertion of the connecting element into the pipe, wherein the infrared sensor is arranged on the end cap. [4] Handrail according to claim 3, characterized bythat the sensor assembly further comprises a mounting sleeve in which the infrared sensor is arranged, wherein an insertion hole is provided at an end of the end cover facing away from the pipe, into which insertion hole the mounting sleeve is inserted, wherein an annular flange is provided protruding on an outer peripheral side of the mounting sleeve, which annular flange can bear against the end cover to restrict the insertion of the mounting sleeve into the insertion hole. [5] Handrail according to claim 1, characterized by that a plurality of light-permeable openings are provided on a side wall of the tube, which openings are arranged at equal distances from one another in the axial direction of the tube. [6] Handrail according to claim 3, characterized by that an end of the connecting element facing away from the end cover is firmly connected to connecting blocks, wherein in one of the connecting blocks a mounting chamber is provided in which the battery is mounted. [7] Handrail according to claim 6, characterized by that a transparent sleeve in which the light strip is arranged is provided in an interior of the tube, wherein two ends of the transparent sleeve are each connected by thread to a fastening seat, and wherein the fastening seat is inserted in the sleeve. [8] Handrail according to claim 7, characterized bythat an end of the fastening seat facing away from the transparent sleeve is connected to a movable block, wherein a first electrical contact is provided at an end of the movable block facing away from the fastening seat, wherein two first electrical contacts are connected to one another by electrical wire, wherein a second electrical contact is provided at an end of the connecting block facing the movable block, wherein two second electrical contacts are each electrically connected to the infrared sensor at one end of the tube and to the controller at the other end of the tube, and wherein the first electrical contacts can bear against the second electrical contacts, so that the infrared sensor at one end of the tube is electrically connected to the controller at the other end of the tube. [9] Handrail according to claim 8, characterized bythat at the end of the connecting block facing the movable block, a plurality of first positioning rods are arranged axially projecting and spaced from one another in the circumferential direction of the connecting block, wherein a plurality of first positioning holes are provided in the movable block, which uniquely correspond to the first positioning rods and in which the first positioning rods are inserted. [10] Handrail according to claim 8, characterized by that the movable block is slidably connected to the mounting seat, wherein a spring is provided between the movable block and the mounting seat, wherein the two ends of the spring abut against the mounting seat and the movable block, respectively, and wherein the spring can drive the movable block in a sliding movement in a direction away from the mounting seat.

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