Telescopic safety rope
By employing a dual-rope structure and an efficient limiting design, the problem of low efficiency in existing telescopic safety rope limiting structures has been solved, achieving higher load-bearing capacity and safety, enriching application scenarios, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-07
AI Technical Summary
The existing limiting structure of telescopic safety ropes is inefficient and cannot effectively prevent the safety rope from detaching from the box during telescopic movement, posing a safety hazard. Furthermore, its single usage method limits its application scenarios.
It adopts a double-rope structure, combined with a winding reel, limiting groove, clamping groove and coil spring design to form a double limiting structure, which increases the load-bearing capacity and usage of the safety rope. The combination design of the limiting groove and clamping groove avoids repeated friction at the limiting end, and the coil spring provides a reset elastic force to enhance the limiting effect.
The increased load-bearing capacity of the safety rope reduces the impact force during a fall, extends its service life, expands its usage options, and ensures safety and stability.
Smart Images
Figure CN224094320U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lamp safety equipment field, especially a telescopic safety rope. BACKGROUND
[0002] In the field of stage lamp equipment, in order to create a dynamic stage effect, lamp installation is divided into two types of long-term fixation (such as television studio, theater, auditorium and other scenes) and mobile performance (such as large-scale celebrations, star concerts and other scenes that need to be repeatedly disassembled and assembled to adapt to different stages). In these lamp installation processes, in order to ensure stability and safety of the performance site personnel, the lamp base needs to be connected with the installation support through a safety rope to prevent the lamp hook from failing or the installation operation from being wrong, which leads to the lamp falling from a high place, thereby playing a secondary protection role, such as Figure 1 The prior art shows a telescopic safety rope for a lamp, which can determine that Figure 1 The box body 100 in the prior art only has one telescopic safety rope 300, and the safety rope 300 is connected with a lock catch 400. When the telescopic safety rope is used, the box body 100 is fixed on the lamp, and the lock catch 400 with the safety rope 300 is wound around the mounting rack of the lamp and then relocked on the safety rope. The use mode is relatively single. By increasing the number of safety ropes 300, the use mode of the telescopic safety rope can be increased, the application scenarios of the telescopic safety rope are more extensive, the safety rope can be wound around different mounting racks to form a double safety structure, but increasing the number of safety ropes requires improving the limiting structure of the safety rope and the box body. Since the space inside the box body is limited, a more efficient limiting structure is needed to limit multiple safety ropes at the same time, so as to avoid safety accidents caused by the safety rope coming off from the box body during telescoping. UTILITY MODEL CONTENTS
[0003] The utility model aims at solving the above technical problems and provides an efficient limiting structure of a telescopic safety rope with double ropes.
[0004] A telescopic safety rope includes a box body, a winding reel, a first safety rope and a second safety rope. The box body is fixed on a lamp. The winding reel is rotatably installed inside the box body. One end of each of the first safety rope and the second safety rope is a limiting end, which is arranged around the winding reel. The other end of each of the first safety rope and the second safety rope is a free end, which is externally extended from two sides of the box body. The first safety rope and the second safety rope can be freely telescoped under the driving of the winding reel. A winding body for winding the rope is arranged on the winding reel. The winding body is centrally symmetrically arranged with two limiting grooves, two clamping grooves and two first wire outlets. The limiting ends of the first safety rope and the second safety rope are respectively limited and installed in the two limiting grooves. The limiting grooves are connected with the first wire outlets through the clamping grooves. The rope body led out from the limiting end is first clamped in the clamping groove and then led out from the first wire outlet and wound around the winding body.
[0005] According to the telescopic safety rope of the application, the double-out rope structure is adopted, and compared with the existing single-out rope telescopic safety rope, the height of the out rope of the double-out rope telescopic safety rope of the application is reduced under the same specification, which can reduce the impact force on the safety rope when the lamp falls; when the first safety rope and the second safety rope are hung on the mounting frame of the lamp at the same time, the bearing capacity of the telescopic safety rope can be doubled; the use mode of the telescopic safety rope is also more diversified due to the increase of the safety rope; the limiting end of the first safety rope or the second safety rope is first limited by the limiting groove, and then the rope body led out of the limiting groove is clamped and limited by the clamping groove, so that the action of the safety rope during the telescoping is not transmitted to the limiting end, and the repeated friction of the limiting end in the limiting groove is avoided to cause the failure of the limiting structure, and a double-limiting structure of the limiting groove and the clamping groove is formed, thereby forming a more efficient limiting structure of the safety rope.
[0006] Further, the box body is provided with a shaft body, the shaft body extends into the cavity to form an installation cavity for installing the coil spring, the fixed end of the coil spring is clamped on the shaft body, and the movable end of the coil spring is clamped on the winding wheel; the coil spring provides a restoring force for the first safety rope and the second safety rope. The coil spring can accumulate elastic force when the first safety rope and the second safety rope are pulled out of the box body, and release the elastic force when the first safety rope and the second safety rope are retracted, so as to reset the first safety rope and the second safety rope.
[0007] Further, the winding wheel extends into the cavity to form an extension ring surrounding the installation cavity, and the extension ring is provided with a through hole for the shaft body to pass through. The extension ring can cooperate with the shaft body to enable the winding wheel to rotate more stably around the shaft body, and the extension ring can also provide limiting for the coil spring to prevent the coil spring from being separated from the installation cavity.
[0008] Further, the box body is provided with two second wire outlets, and the first safety rope and the second safety rope pass through the two protective sleeves respectively.
[0009] Further, the free ends of the first safety rope and the second safety rope are respectively surrounded to form a fixed ring, and at least one of the fixed rings is connected with a lock.
[0010] Further, the clamping groove is provided with a limiting spike, and the limiting spike is inserted into the rope body to limit. The limiting spike can better clamp the rope body to prevent the rope body from moving in the clamping groove, and cooperate with the limiting groove to form multiple limiting structures to make the installation performance of the product stronger.
[0011] Furthermore, the winding reel includes an upper reel and a lower reel, which are assembled to form the winding rope body. The limiting spikes in the clamping groove of the upper reel are offset from the limiting spikes in the clamping groove of the lower reel. The winding reel is designed as a separate unit, which facilitates the installation of each component onto the reel. The limiting spikes in the clamping grooves of both the upper and lower reels improve the limiting effect. The offset setting of the limiting spikes prevents the upper and lower limiting spikes from acting on the same position of the rope body, thereby minimizing damage to the rope body caused by the limiting spikes.
[0012] Furthermore, it also includes a fixing plate, one end of which is fixed to the housing, and the other end of which extends into a fixing lug. The housing is fixed to the lamp fixture via the fixing lug. If the telescopic safety rope cannot be directly installed on the lamp fixture, the fixing plate can be used for auxiliary installation, allowing the telescopic safety rope to be indirectly fixed to the lamp fixture.
[0013] Furthermore, the box body includes an upper box body and a lower box body, which are fixedly connected by a threaded connection structure. The fixing plate is provided with a first fixing hole at the fixing position of the corresponding threaded connection structure, so that the fixing plate is fixedly connected to the upper box body and the lower box body by sharing the threaded connection structure.
[0014] Furthermore, the box body is provided with a second fixing hole in the middle, and the fixing plate is provided with a third fixing hole at the position corresponding to the second fixing hole. The box body and the fixing plate are connected and fixed by a connector passing through the second fixing hole and the third fixing hole. Attached Figure Description
[0015] Figure 1 A 3D view of an existing retractable safety rope.
[0016] Figure 2 This is a perspective view of the telescopic safety rope of this utility model.
[0017] Figure 3 This is an exploded view of the telescopic safety rope of this utility model.
[0018] Figure 4 This is a perspective view of the reel of the telescopic safety rope of this utility model.
[0019] Figure 5 This is a perspective view of the reel of the telescopic safety rope of this utility model from another angle.
[0020] Figure 6 This is an exploded view of the telescopic safety rope of this utility model equipped with a fixing plate.
[0021] Figure 7 An exploded view of the telescopic safety rope of this utility model equipped with another fixing plate. Detailed Implementation
[0022] The present invention relates to a telescopic safety rope, illustrated in conjunction with the accompanying drawings.
[0023] like Figures 2 to 7 The diagram illustrates a retractable safety rope, comprising a housing 1, a reel 2, a first safety rope 3, and a second safety rope 4. The housing 1 is fixed to a light fixture, and the reel 2 is rotatably mounted inside the housing 1. One end of the first safety rope 3 and the second safety rope 4 is a limiting end, which is coiled around the reel 2. The other ends of the first safety rope 3 and the second safety rope 4 are free ends, extending outwards from two sides of the housing 1. The free ends of the first safety rope 3 and the second safety rope 4 each form a retaining loop (31, 41). A locking buckle 5 is connected to one of the fixed rings (31, 41). In the embodiment shown in the accompanying drawings, the locking buckle 5 is connected to the fixed ring (31, 41) of the first safety rope 3, and the locking buckle 5 is not connected to the fixed ring (31, 41) of the second safety rope 4. The first safety rope 3 and the second safety rope 4 can freely extend and retract under the drive of the reel 2. The double-outlet telescopic safety rope adopted in this application can reduce the impact of the safety rope when the lamp falls and significantly improve the load-bearing capacity of the safety rope. It is suitable for more installation environments, and the first safety rope 3 and the second safety rope 4 can be hung on different mounting frames to form a double safety structure.
[0024] like Figure 3 As shown, it also includes a coil spring 6. The winding reel 2 has a cavity in the middle. The housing 1 has a shaft 16. The shaft 16 extends into the cavity to form a mounting cavity 23 for mounting the coil spring 6. The fixed end 61 of the coil spring 6 is engaged with the shaft 16, and the movable end 62 of the coil spring 6 is engaged with the winding reel 2. The coil spring 6 provides a restoring elastic force for the first safety rope 3 and the second safety rope 4.
[0025] like Figure 4 As shown, the winding reel 2 extends into the cavity to form an extension ring 231 that surrounds the mounting cavity 23. The extension ring 231 has a through hole 232 in the middle for the shaft 16 to pass through. The extension ring 231 can be clearance-fitted with the shaft 16, so that the winding reel 2 can rotate stably around the shaft 16 without moving randomly in the housing 1 and making abnormal noise. In addition, the extension ring 231 can also provide a limit for the coil spring 6 to prevent the coil spring 6 from detaching from the mounting cavity 23.
[0026] like Figure 3 and Figure 4As shown, the shaft 16 is provided with a first locking position 161. The fixed end 61 of the coil spring 6 is bent so that it can be locked into the first locking position 161 for fixation. The extension ring 231 is provided with a second locking position 233. The movable end 62 of the coil spring 6 is bent so that it can be locked into the second locking position 233. As the winding wheel 2 rotates, the coil spring 6 can accumulate elastic force when the first safety rope 3 and the second safety rope 4 are pulled outwards towards the box 1, and release the elastic force when the first safety rope 3 and the second safety rope 4 are retracted, so that the first safety rope 3 and the second safety rope 4 are reset as the winding wheel 2 rotates.
[0027] like Figures 3 to 5 As shown, the winding reel 2 is symmetrically provided with two limiting grooves 241. The axis of symmetry is the connecting line between the centers of the limiting grooves 241, or the line between the two limiting grooves 241 passing through the center of the winding reel 2, or the two limiting grooves 241 can coincide after rotating 180 degrees. The limiting ends of the first safety rope 3 and the second safety rope 4 are respectively limited and installed on the two limiting grooves 241. The limiting ends of the first safety rope 3 and the second safety rope 4 are limiting spheres (32, 42). The limiting spheres (32, 42) are housed in the limiting grooves 241. The rope leading out from the limiting end extends out of the limiting grooves 241 from the outlet of the limiting grooves 241. Since the size of the limiting spheres (32, 42) is larger than the size of the outlet of the limiting grooves 241, the limiting ends of the first safety rope 3 and the second safety rope 4 are respectively limited and installed on the two limiting grooves 241.
[0028] like Figures 3 to 5 As shown, the winding reel 2 has a winding body 24 for winding the rope. A limiting groove 241 is disposed within the winding body 24. The winding body 24 also has two clamping grooves 242 and two first cable outlets 243. The clamping grooves 242 and the first cable outlets 243 are arranged in a centrally symmetrical manner. The outlet of the limiting groove 241 is the clamping groove 242. The limiting groove 241 connects to the first cable outlets 243 through the clamping grooves 242. That is, after the winding reel 2 rotates 180 degrees, the two limiting grooves 241 and the two clamping grooves 242... The groove 242 and the two first outlets 243 can overlap. The rope leading from the limiting end is first clamped in the clamping groove 242, and then led out from the first outlets 243 and wound around the rope 24. The clamping groove 242 clamps and limits the rope leading from the limiting groove 241, preventing the safety rope from transmitting its movement to the limiting end during extension and retraction. This also prevents the limiting end from repeatedly rubbing against the limiting groove 241, which could lead to failure of the limiting structure. Therefore, by clamping the rope in the clamping groove 242, the service life of the telescopic safety rope can be increased. Figure 5 As shown, the rope of the second safety rope 4 is finally led out from the first outlet 243.
[0029] like Figure 2 and Figure 3As shown, two second cable outlets are provided on the box body 1, and protective sleeves 17 are provided at the two second cable outlets. The first safety rope 3 and the second safety rope 4 pass through the protective sleeves 17, thereby preventing the first safety rope 3 and the second safety rope 4 from cutting the box body 1 when they extend or retract.
[0030] like Figure 3 As shown, the clamping groove 242 is provided with a limiting spike 2421. The limiting spike 2421 inserts into the rope body to limit its movement. The limiting spike 2421 can better clamp the rope body and prevent the rope body from shifting in the clamping groove 242. It works with the limiting groove 241 to form a variety of limiting structures, making the installation performance of the product stronger. The limiting spike 2421 has a structure design that is pointed at the top and wide at the bottom, which can effectively insert into the rope body to achieve limiting while avoiding cutting and damaging the rope body.
[0031] like Figure 3 and Figure 4 As shown, the winding reel 2 includes an upper reel 21 and a lower reel 22, which are assembled to form the rope winding body 24. Two limiting grooves 241, two clamping grooves 242, and two first cable outlets 243 on the winding reel 2 respectively form two sets of structures for clamping the safety rope. At least two limiting grooves 241 and two clamping grooves 242 are formed by assembling the upper reel 21 and the lower reel 22. The clamping groove 242 of the upper reel 21... The limiting spikes 2421 of the upper wheel 21 and the limiting spikes 2421 in the clamping groove 242 of the lower wheel 22 are misaligned. This improves the limiting effect and prevents the upper and lower limiting spikes 2421 from acting on the same position of the rope, thereby reducing damage to the rope. Two fixing positions are left between the two sets of clamping safe structures for the upper wheel 21 and the lower wheel 22 to be assembled. The fixing positions include fixing protrusions 244 and fixing recesses. At position 245, the upper wheel 21 has two mounting positions, one a fixed protrusion 244 and the other a fixed recess 245. The lower wheel 22 also has a fixed protrusion 244 and a fixed recess 245. The fixed protrusion 244 of the upper wheel 21 is aligned with the fixed recess 245 of the lower wheel 22. The other fixed protrusion 244 and fixed recess 245 are also aligned. The fixed protrusion 244 has screw holes. The fixed protrusion 244 and fixed recess 245 are connected by screws to form the winding wheel 2. The fixed recess 245 has a positioning post 2451 and the fixed protrusion 244 has a positioning groove 2441. The positioning post 2451 and the positioning groove 2441 cooperate to position the upper wheel 21 and the lower wheel 22 when they are assembled. This arrangement can balance the weight of the upper wheel 21 and the lower wheel 22, so that the winding wheel 2 can remain balanced when rotating and avoid severe wear on one side of the wheel.
[0032] like Figure 6 and Figure 7As shown, it also includes a fixing plate 7, one end of which is fixed to the housing 1, and the other end of which extends into a fixing ear 73. The housing 1 is fixed to the lamp via the fixing ear 73, as shown. Figure 6 As shown, the fixing ear 73 can be arranged parallel to the main body of the fixing plate 7, such as... Figure 7 As shown, the fixing ear 73 can be set vertically relative to the main body of the fixing plate 7, allowing the user to select a suitable fixing plate 7 to install the telescopic safety rope as needed.
[0033] like Figure 3 , Figure 6 as well as Figure 7 As shown, the box body 1 includes an upper box body 14 and a lower box body 15. The upper box body 14 and the lower box body 15 are fixedly connected by a threaded connection structure 12. The fixing plate 7 is provided with a first fixing hole 71 at the fixing position of the corresponding threaded connection structure 12, so that the fixing plate 7 is fixedly connected to the upper box body 14 and the lower box body 15 by sharing the threaded connection structure 12.
[0034] In addition, such as Figure 2 and Figure 3 As shown, this application also improves the drain outlet 13. The drain outlet 13 is set on the bottom surface of the lower box 15. The inlet of the drain outlet 13 is kept flush with the bottom surface of the lower box 15, or set at the lowest point of the bottom surface of the lower box 15 to avoid water accumulation on the bottom surface of the lower box 15. The outlet of the drain outlet 13 extends to the side of the lower box 15 with a drain groove, so that the water flowing out of the box 1 can flow out along the drain groove.
[0035] The box body 1 has a second fixing hole 11 in the middle, which is located in the middle of the shaft 16. The fixing plate 7 has a third fixing hole 72 corresponding to the position of the second fixing hole 11. The box body 1 is connected and fixed to the fixing plate 7 by a connector 8 passing through the second fixing hole 11 and the third fixing hole 72. Figure 6 When the second fixing hole 11 and the third fixing hole 72 are through holes, two connectors 8 can be used to connect them with top and bottom threads to clamp and fix the fixing plate 7 and the box body 1, as described above. Figure 7 As shown, when the second fixing hole 11 and the third fixing hole 72 are threaded holes, the second fixing hole 11 and the third fixing hole 72 can be directly connected by bolt connector 8, thereby connecting and fixing the fixing plate 7 and the box body 1.
[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A retractable safety rope, characterized in that, The device includes a housing, a reel, a first safety rope, and a second safety rope. The housing is fixed to the lamp, and the reel is rotatably installed inside the housing. One end of the first and second safety ropes is a limiting end, which is coiled around the reel. The other end of the first and second safety ropes is a free end, which extends out from two sides of the housing. The first and second safety ropes can extend and retract freely under the drive of the reel. The reel is provided with a rope winding body for winding ropes. The rope winding body has two limiting grooves, two clamping grooves, and two first outlets arranged in a centrally symmetrical manner. The limiting ends of the first and second safety ropes are respectively limited and installed on the two limiting grooves. The limiting grooves are connected to the first outlets through the clamping grooves. The rope leading out from the limiting end is first clamped in the clamping groove, and then led out from the first outlet and wound around the rope winding body.
2. The telescopic safety rope according to claim 1, characterized in that, It also includes a coil spring, the winding reel has a cavity in the middle, the housing has a shaft, the shaft extends into the cavity to form a mounting cavity for the coil spring, the fixed end of the coil spring is engaged with the shaft, and the movable end of the coil spring is engaged with the winding reel; the coil spring provides a restoring elastic force for the first safety rope and the second safety rope.
3. The telescopic safety rope according to claim 2, characterized in that, The winding reel extends into the cavity to form an extension ring that surrounds the mounting cavity, and the extension ring has a through hole in the middle for the shaft to pass through.
4. The telescopic safety rope according to claim 1, characterized in that, The box body is provided with two second cable outlets, each of which is equipped with a protective sleeve. The first safety rope and the second safety rope respectively pass through the two protective sleeves.
5. The telescopic safety rope according to claim 1, characterized in that, The free ends of the first and second safety ropes are each wrapped to form a fixing loop, and at least one of the fixing loops is connected to a buckle.
6. The telescopic safety rope according to claim 1, characterized in that, The clamping groove is provided with a limiting spike, which penetrates into the rope body to limit its movement.
7. The telescopic safety rope according to claim 6, characterized in that, The winding reel includes an upper reel and a lower reel, which are assembled to form the winding body. The limiting spikes in the clamping groove of the upper reel are misaligned with the limiting spikes in the clamping groove of the lower reel.
8. The telescopic safety rope according to claim 1, characterized in that, It also includes a fixing plate, one end of which is fixed to the box body, and the other end of which extends into a fixing ear. The box body is fixed to the lamp via the fixing ear.
9. The telescopic safety rope according to claim 8, characterized in that, The box body includes an upper box body and a lower box body, which are fixedly connected by a threaded connection structure. The fixing plate is provided with a first fixing hole at the fixing position of the corresponding threaded connection structure, so that the fixing plate is fixedly connected to the upper box body and the lower box body by sharing the threaded connection structure.
10. The telescopic safety rope according to claim 8, characterized in that, The box body is provided with a second fixing hole in the middle, and the fixing plate is provided with a third fixing hole at the position corresponding to the second fixing hole. The box body and the fixing plate are connected and fixed by a connector passing through the second fixing hole and the third fixing hole.