Liftable pulley guard
The design of the adjustable pulley guardrail enables automatic height adjustment and illuminated warnings, solving the problems of cumbersome adjustment and insufficient safety of existing guardrails, and improving operational efficiency and safety.
Patent Information
- Application Number
- CN202522109576.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
The existing guardrail adjustment method is cumbersome and can easily cause personal injury in nighttime conditions, failing to effectively prevent spectators from colliding.
The guardrail uses a liftable pulley system, which automatically adjusts the height of the guardrail through the cooperation of a dual-head motor, a rotating shaft, a winding drum, and a cable. It is also equipped with a lighting mechanism to enhance the stage effect and warning function.
The height adjustment of the guardrails has been simplified, reducing the workload of staff, and the lighting mechanism prevents audience collisions, thus improving safety and stage effects.
Smart Images
Figure CN224679259U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety engineering technology, specifically to a liftable pulley guardrail. Background Technology
[0002] In concert and other stage venues, it is often necessary to use barriers to demarcate areas, separate the stage from the audience, prevent the audience from rushing onto the stage and affecting the performers' normal performance, and ensure the safety of personnel.
[0003] The existing guardrails have the following problems during use: Firstly, some railings are height-adjustable to prevent enthusiastic fans from climbing over them onto the stage and disrupting the normal performance order. The railings are usually adjusted manually and then secured with bolts to complete the adjustment. However, since many railings are needed around the stage, and the height of the railings must be readjusted to restore them to their original state after the performance, this adjustment method is cumbersome and increases the workload of the staff. Secondly, guardrails are generally made of metal materials such as stainless steel. However, stage performances often take place at night in a dark environment, making it easy for audience members to bump into the guardrails and cause personal injury. In view of this, we propose a guardrail with liftable pulleys. Utility Model Content
[0004] This utility model addresses the technical problems existing in the prior art by providing a liftable pulley guardrail to solve the problems of existing solutions.
[0005] To achieve the above objectives, this utility model provides a liftable pulley guardrail, comprising a guardrail body with two sliding grooves symmetrically distributed at both ends of the top of the guardrail body. A shielding frame is slidably connected to each sliding groove. A drive mechanism is provided on one side of the guardrail body, and two winding mechanisms for moving the shielding frame are mounted on the drive mechanism. The two winding mechanisms are symmetrically arranged at both ends of the drive mechanism, and their output ends are connected to the shielding frame. A lighting mechanism for enhancing stage effects is provided on one side of the guardrail body. The two winding mechanisms have the same structure. The shielding frame has two mounting slots, which are symmetrically distributed at both ends of one side of the shielding frame. The winding mechanism includes a device box, which is mounted on the drive mechanism. A winding drum is rotatably connected inside the device box, and a pull cable is wound around the surface of the winding drum. A round hole is opened at the top of the device box, and one end of the pull cable passes through the round hole and is fixedly connected to the bottom of the mounting slot.
[0006] The beneficial effects of this utility model are: 1) In this liftable pulley guardrail, the double-headed motor, rotating shaft, winding drum and cable work together. When the double-headed motor rotates, it drives the rotating shaft and winding drum to rotate, so that the winding drum winds up or unwinds the cable. The cable slides continuously against the surface of the two fixed pulleys, thereby achieving the purpose of adjusting the height of the guardrail. The operation is simple and reduces the workload of the staff.
[0007] 2) In this liftable pulley guardrail, through the cooperation of the light strip and the mounting box, when the light strip is lit, the light passes through the mounting box and is dispersed into the external environment. Different colors of light can not only enhance the stage effect, but also serve as a warning to prevent audience members and other personnel from colliding with the guardrail body and causing personal injury.
[0008] Based on the above technical solution, the present invention can be further improved as follows: As a further improvement to this technical solution, the cable surface is connected to two fixed pulleys, which are fixedly connected to the guardrail body, and one of the fixed pulleys extends into the mounting groove.
[0009] The beneficial effect of adopting the above-mentioned further solution is that, by setting two fixed pulleys, when the winding drum rotates, the winding drum winds up or unwinds the cable, thereby driving the barrier frame to slide along the mounting groove to change the height of the barrier frame. During this process, the fixed pulleys can support the cable and prevent the cable from directly contacting the barrier frame and the main body of the guardrail and causing wear.
[0010] As a further improvement to this technical solution, the driving mechanism includes a fixed plate, one side of which is fixedly connected to the guardrail body. The bottom of the equipment box is fixedly connected to one end of the top of the fixed plate. A fixed box is fixedly connected to the center of the top of the fixed plate. A dual-head motor is fixedly installed inside the fixed box. The dual-head motor can rotate forward and backward. Alternatively, the dual-head motor can be replaced by an existing structure such as a handle or grip. Both output ends of the dual-head motor are fixedly connected to a rotating shaft. One end of the rotating shaft passes through the equipment box and is fixedly connected to the winding drum.
[0011] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a dual-head motor and a rotating shaft, when the dual-head motor rotates, it drives the rotating shaft to rotate, which in turn drives the winding drum to rotate, so as to wind or unwind the cable and achieve the purpose of changing the height of the shielding frame.
[0012] As a further improvement to this technical solution, the light-emitting mechanism includes a mounting box, one side of which is fixedly connected to the guardrail body, a mounting plate is fixedly connected inside the mounting box, and multiple light strips are fixedly connected to one side of the mounting plate.
[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the installation of the mounting box and the light strip, the mounting box provides a certain degree of protection for the light strip. When the light strip is powered on and emits light, the light passes through the mounting box and diffuses into the external environment. The different colors of light can not only enhance the stage effect, but also serve as a warning, reminding the audience not to cross the boundary and affect the normal performance on stage.
[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the external first-view structure of this utility model; Figure 2 This is a schematic diagram of the external second-view structure of this utility model; Figure 3 This is a schematic diagram of the connection structure between the winding drum and the cable of this utility model; Figure 4 This is a schematic diagram of the internal structure of the fixing box of this utility model; Figure 5 This is a schematic diagram of the internal structure of the mounting box of this utility model; Figure 6 This utility model Figure 2 A magnified view of part A.
[0016] The meanings of the labels in the diagram are as follows: 1. Guardrail body; 2. Slide rail; 3. Barrier frame; 4. Drive mechanism; 41. Fixing plate; 42. Fixing box; 43. Dual-head motor; 44. Rotating shaft; 5. Winding mechanism; 51. Equipment box; 52. Winding spool; 53. Cable; 54. Round hole; 55. Fixed pulley; 6. Lighting mechanism; 61. Mounting box; 62. Mounting plate; 63. Light strip; 7. Mounting groove. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-6As shown, this embodiment provides a liftable pulley guardrail, including a guardrail body 1. The guardrail body 1 has two sliding grooves 2, symmetrically distributed at both ends of the top of the guardrail body 1. A shielding frame 3 is slidably connected to each sliding groove 2. A drive mechanism 4 is provided on one side of the guardrail body 1. Two winding mechanisms 5 are mounted on the drive mechanism 4 to move the shielding frame 3. The two winding mechanisms 5 are symmetrically arranged at both ends of the drive mechanism 4. The output end of the winding mechanism 5 is connected to the shielding frame 3. A lighting mechanism 6 for enhancing stage effects is provided on one side of the guardrail body 1. Wherein: The two winding mechanisms 5 have the same structure. The shielding frame 3 has two mounting slots 7, which are symmetrically distributed at both ends of one side of the shielding frame 3. The winding mechanism 5 includes an equipment box 51, which is mounted on the drive mechanism 4. A winding drum 52 is rotatably connected inside the equipment box 51. A pull cable 53 is wound around the surface of the winding drum 52. A round hole 54 is opened at the top of the equipment box 51. One end of the pull cable 53 passes through the round hole 54 and is fixedly connected to the bottom of the mounting slot 7.
[0019] Furthermore, the cable 53 is connected to two fixed pulleys 55, which are fixedly connected to the guardrail body 1. One of the fixed pulleys 55 extends into the mounting groove 7. With the two fixed pulleys 55, when the winding drum 52 rotates, the winding drum 52 winds up or unwinds the cable 53, thereby driving the shielding frame 3 to slide along the slide groove 2 to change the height of the shielding frame 3. During this process, the fixed pulleys 55 can support the cable 53 and prevent the cable 53 from directly contacting the shielding frame 3 and the guardrail body 1 and causing wear.
[0020] Furthermore, the drive mechanism 4 includes a fixed plate 41, one side of which is fixedly connected to the guardrail body 1. The bottom of the equipment box 51 is fixedly connected to one end of the top of the fixed plate 41. A fixed box 42 is fixedly connected to the center of the top of the fixed plate 41. A dual-head motor 43 is fixedly installed inside the fixed box 42. The model of the dual-head motor 43 is GDZ93X82-3.5, and the dual-head motor 43 can rotate forward and backward. The dual-head motor 43 can also be replaced by existing structures such as handles or grips. Multiple dual-head motors 43 can be started simultaneously by sending an electrical signal to the dual-head motor 43 through the control center. Both output ends of the dual-head motor 43 are fixedly connected to a rotating shaft 44. One end of the rotating shaft 44 passes through the equipment box 51 and is fixedly connected to the winding drum 52. Through the arrangement of the dual-head motor 43 and the rotating shaft 44, when the dual-head motor 43 rotates, it drives the rotating shaft 44 to rotate, which in turn drives the winding drum 52 to rotate, so as to wind or unwind the cable 53 and achieve the purpose of changing the height of the barrier frame 3.
[0021] Furthermore, the light-emitting mechanism 6 includes a mounting box 61, which is made of transparent materials such as tempered glass. One side of the mounting box 61 is fixedly connected to the main body of the guardrail 1. A mounting plate 62 is fixedly connected inside the mounting box 61. Multiple light strips 63 are fixedly connected to one side of the mounting plate 62. The light strips 63 are model TM1934A-5050RGB-60D-24V. Different colors of light strips 63 can be selected according to the stage design requirements to serve as reminders and warnings and to enhance the stage effect. Through the setting of the mounting box 61 and the light strips 63, the mounting box 61 provides a certain degree of protection for the light strips 63. When the light strips 63 are powered on and emit light, the light passes through the mounting box 61 and is dispersed into the external environment. Different colors of light can not only enhance the stage effect, but also serve as a warning to prevent audience members and other personnel from colliding with the main body of the guardrail 1 and causing personal injury.
[0022] In summary, the working principle of this solution is as follows: When this guardrail is needed, multiple guardrail bodies 1 are installed around the stage. If the overall height of the guardrail needs to be adjusted, the method is as follows: The control center sends electrical signals to multiple dual-head motors 43 to start them, which in turn drive their respective two rotating shafts 44 to rotate. This causes the winding drum 52 to rotate in the same direction around the rotating shaft 44, allowing the winding drum 52 to wind or unwind the cable 53. When the winding drum 52 winds the cable 53, the cable 53 continuously slides against the surfaces of the two fixed pulleys 55, causing the length of the cable 53 on the outside of the equipment box 51 to continuously shorten. This pulls the shielding frame 3, causing it to slide upwards along the slide groove 2, increasing the overall height of the shielding frame 3 and the guardrail body 1. When the winding drum 52 unwinds the cable 53, the length of the cable 53 on the outside of the equipment box 51 continuously increases, and the shielding frame 3 slides downwards along the slide groove 2 under the action of gravity, reducing the overall height of the shielding frame 3 and the guardrail body 1. This achieves the purpose of adjusting the height of the guardrail. The control center sends a signal, which is then distributed by the signal distributor to multiple light strips 63 to control the light strips 63 to emit light. The light passes through the mounting box 61 and is dispersed into the external environment. The different colors of light can not only enhance the stage effect, but also serve as a warning to prevent audience members and other personnel from colliding with the main body of the guardrail 1 and causing personal injury.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A liftable pulley guardrail, comprising a guardrail body (1), wherein the guardrail body (1) has two sliding grooves (2), the two sliding grooves (2) are symmetrically distributed at both ends of the top of the guardrail body (1), and a shielding frame (3) is slidably connected to the sliding grooves (2), characterized in that: A drive mechanism (4) is provided on one side of the main body (1) of the guardrail. Two winding mechanisms (5) for moving the shield (3) are installed on the drive mechanism (4). The two winding mechanisms (5) are symmetrically arranged at both ends of the drive mechanism (4). The output end of the winding mechanism (5) is connected to the shield (3). A light-emitting mechanism (6) for enhancing the stage effect is provided on one side of the main body (1) of the guardrail. The two winding mechanisms (5) have the same structure. The shielding frame (3) has two mounting slots (7). The two mounting slots (7) are symmetrically distributed at both ends of one side of the shielding frame (3). The winding mechanism (5) includes a device box (51). The device box (51) is set on the drive mechanism (4). A winding drum (52) is rotatably connected inside the device box (51). A pull cable (53) is wound around the surface of the winding drum (52). A round hole (54) is opened at the top of the device box (51). One end of the pull cable (53) passes through the round hole (54) and is fixedly connected to the bottom of the mounting slot (7).
2. The liftable pulley guardrail according to claim 1, characterized in that: The cable (53) has two fixed pulleys (55) that are in contact with each other. The fixed pulleys (55) are fixedly connected to the guardrail body (1), and one of the fixed pulleys (55) extends into the mounting groove (7).
3. The liftable pulley guardrail according to claim 2, characterized in that: The drive mechanism (4) includes a fixed plate (41), one side of which is fixedly connected to the guardrail body (1). The bottom of the equipment box (51) is fixedly connected to one end of the top of the fixed plate (41). A fixed box (42) is fixedly connected to the center of the top of the fixed plate (41). A double-headed motor (43) is fixedly installed inside the fixed box (42). A rotating shaft (44) is fixedly connected to both output ends of the double-headed motor (43). One end of the rotating shaft (44) passes through the equipment box (51) and is fixedly connected to the winding drum (52).
4. The liftable pulley guardrail according to claim 1, characterized in that: The light-emitting mechanism (6) includes a mounting box (61), one side of which is fixedly connected to the guardrail body (1), and a mounting plate (62) is fixedly connected inside the mounting box (61), and a plurality of light strips (63) are fixedly connected to one side of the mounting plate (62).