A conveyor line with a safety guard
By designing a safety guard frame and a Z-shaped pull rope structure on the conveyor line, the problem of alarm and rapid shutdown when personnel fall or collide with the side or top of the conveyor line is solved, improving the safety and adaptability of the conveyor line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI RUNHE ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
The existing conveyor lines lack effective alarm and rapid shutdown mechanisms in case of personnel falling or being hit from the side or above, making it difficult to avoid safety hazards.
Design a conveyor line with a safety guard frame, including a safety guard frame, a stop controller, and a Z-shaped pull rope structure. The stop controller is activated by pulling the rope to achieve rapid shutdown, and the adjustable frame structure can adapt to conveyor lines of different lengths.
It enables rapid alarm and shutdown from the sides and top of the conveyor line, improving the flexibility and adaptability of safety protection and reducing the risk of personal injury.
Smart Images

Figure CN224492578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to safety protection devices, and in particular to a conveyor line with a safety protection frame. Background Technology
[0002] In industrial production, safety facilities are crucial for protecting operators. During the transport of goods and products by conveyor equipment, it's also necessary to prevent operators from bumping into or falling onto the conveyor line. Therefore, safety nets are typically designed, but they cannot completely prevent accidents. Furthermore, safety nets are usually fixed in design and cannot be adjusted once installed. CN110155615A discloses a safety net for the head of a belt conveyor, which is only installed at the head of the conveyor. However, in actual production, conveyor lines are usually quite long, typically 5-10 meters or even longer. The greater dangers on conveyor lines come from the sides and above. Therefore, it's essential to know how to prevent personnel from bumping into or falling onto the conveyor line, stop the machine promptly, and conduct rapid rescue to prevent further injury. Summary of the Invention
[0003] The technical problem to be solved by this utility model embodiment is to provide a conveyor line with a safety guard to solve the problem of alarm when people fall or collide with the side or top of the conveyor line.
[0004] To address the aforementioned technical problems, this utility model provides a conveyor line with a safety guard frame, comprising a safety guard frame and a conveyor line body. The safety guard frame is positioned to the side or above the conveyor line and includes a long, narrow frame, a stop controller, and a Z-shaped pull rope longitudinally connected to the frame. The frame includes a longitudinal connecting plate and transverse connecting rods connected to both ends of the longitudinal connecting plate, with the two transverse connecting rods arranged in parallel. Each transverse connecting rod has at least one fixed pulley, and the base of the fixed pulley is fixedly connected to the transverse connecting rod, with the pulley portion pointing towards the opposite transverse connecting rod. One of the transverse connecting rods has an elastic connection structure, with one end of the pull rope connected to the elastic connection structure, and the other end passing through the fixed pulley on the opposite side and the fixed pulley on this side before connecting to a pull switch on the stop controller of the opposite transverse connecting rod.
[0005] It also includes a longitudinal link that connects the ends of two transverse links.
[0006] The longitudinal connecting plate is provided with damping structure pivots at both ends, so that the frame can rotate and be fixed around the damping structure pivots.
[0007] It also includes a mounting base, which is connected to the rotating shaft of the damping structure.
[0008] It also includes a feed roller, fixed to a transverse link near the elastic connection structure, with the end of the pull rope wound around the feed roller.
[0009] The elastic connection structure is a spring, and the end of the spring is connected to the pull rope.
[0010] The longitudinal connecting plate is a telescopic structure. Correspondingly, when using a longitudinal connecting rod, the longitudinal connecting rod is also a telescopic structure, or the longitudinal connecting rod has different length specifications to adapt to the length of the longitudinal connecting plate.
[0011] This utility model provides a conveyor line with a safety guard frame. The frame features a Z-shaped arrangement of pull ropes. When someone falls or bumps into the safety guard frame, touching the pull ropes tightens them, triggering the stop controller to shut down the main body of the conveyor line. The utility model utilizes multiple arranged fixed pulleys to maintain consistent tension in the pull ropes. If a fall or bump causes partial contact with the pull ropes, the entire rope tightens, quickly activating the stop controller. Damping shafts are installed at both ends of the longitudinal connecting plate, automatically maintaining their position after the frame rotates. This allows the safety guard frame to be installed vertically or horizontally, either beside or above the conveyor line, expanding its application scenarios. The design of the cable-collecting rollers allows excess pull rope to be wound around them. When adjusting the overall frame length, the pull ropes are released or retracted, adapting to different length requirements without needing to replace them. The entire frame can be designed as a telescopic structure, allowing the safety guard frame to accommodate varying length protection requirements. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the safety protection frame described in an embodiment of the present utility model (the main body of the conveyor line is omitted).
[0013] In the picture:
[0014] 10-Frame; 11-Longitudinal connecting plate; 12-Transverse connecting rod; 13-Longitudinal connecting rod; 14-Elastic connection structure; 15-Fixed pulley; 16-Damping structure pivot;
[0015] 20-Stop Controller;
[0016] 30 - Pull rope; 31 - Concentrator roller. Detailed Implementation
[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0020] like Figure 1 As shown, this utility model provides a conveyor line with a safety guard frame, including a safety guard frame and a conveyor line body. The safety guard frame is installed on the side or above the conveyor line, thereby providing a protective alarm function for the side or above the conveyor line. Specifically, the safety protection frame provided by this utility model includes a long strip-shaped frame 10, a stop controller 20, and a Z-shaped pull rope 30 connected longitudinally to the frame 10. The frame 10 includes a longitudinal connecting plate 11 and transverse connecting rods 12 connected to both ends of the longitudinal connecting plate 11. The two transverse connecting rods 12 are arranged in parallel. At least one fixed pulley 15 is provided on each transverse connecting rod 12, and the base part of the fixed pulley 15 is fixedly connected to the transverse connecting rod 12, with the pulley part pointing to the transverse connecting rod 12 on the opposite side. An elastic connection structure 14 is provided on one of the transverse connecting rods 12. One end of the pull rope 30 is connected to the elastic connection structure 14, and the other end passes through the fixed pulley 15 on the opposite side and the fixed pulley 15 on this side before connecting to the pull switch on the stop controller 20 of the transverse connecting rod 12 on the opposite side. The Z-shaped pull rope 30 is obtained by repeatedly winding between fixed pulleys 15 on the transverse connecting rod 12; the base of the fixed pulley 15 can be rotatably connected to the transverse connecting rod 12 through an independent axle pin, thereby adaptively allowing the fixed pulley 15 to rotate around the axle pin.
[0021] The length of the transverse connecting rod is much shorter than the length of the longitudinal connecting plate 11. Furthermore, the length of the transverse connecting rod 12 can be one-fifth to one-tenth of the length of the longitudinal connecting plate. The length of the transverse connecting rod is between 1 and 2 meters, and the length of the longitudinal connecting plate is between 5 and 15 meters.
[0022] It also includes a longitudinal connecting rod 13, which connects the ends of two transverse connecting rods 12. The longitudinal connecting rod 13 is arranged parallel to the longitudinal connecting plate 11. At the end of each transverse connecting rod, a pin hole or insertion hole can be designed to connect with the longitudinal connecting rod 13, so that the longitudinal connecting rod 13 can be inserted into it, and the longitudinal connecting rod 13 and the transverse connecting rod 12 can be fixed and locked together by threads or fixing pins.
[0023] The longitudinal connecting plate 11 has damping structure pivots 16 at both ends, allowing the frame 10 to rotate and be fixed around the damping structure pivots 16. The damping structure pivots 16 can be conventional damping shaft structures (using damping bearings). Alternatively, an auxiliary limiting structure can be used to limit the frame 10, fixing its position after rotation.
[0024] It also includes a mounting base connected to the damping structure's pivot 16. The mounting base allows the entire safety guard to be installed in a designated location, such as on the ground next to the conveyor line or on a support attached to the conveyor line.
[0025] It also includes a wire-collecting roller 31, which is fixed on a transverse connecting rod 12 near the elastic connection structure 14, and the end of the pull rope 30 is wound around the wire-collecting roller 31.
[0026] The elastic connection structure 14 is a spring, and the end of the spring is connected to the pull rope. The spring has a certain elasticity. After the end of the spring is connected to the pull rope, a certain pre-tension relationship is formed between the pull rope and the spring. The magnitude of this pre-tension should be less than the starting pull force of the pull switch of the stop controller, so that the stop controller remains in the closed state.
[0027] The longitudinal connecting plate 11 is a telescopic structure. Correspondingly, when the longitudinal connecting rod 13 is used, the longitudinal connecting rod 13 is also a telescopic structure, or the longitudinal connecting rod 13 has different length specifications to adapt to the length of the longitudinal connecting plate.
[0028] This utility model provides a safety protection frame with Z-shaped pull ropes arranged on a longitudinally elongated frame. When someone falls or bumps into the safety protection frame, touching the pull ropes tightens them, thereby activating the stop controller to stop the main body of the conveyor line. This utility model uses a multi-arranged fixed pulley structure to maintain a relatively consistent tension in the pull ropes at various points. If a fall or bump causes partial contact with the pull rope, the entire rope will tighten, quickly activating the stop controller. Damping structure pivots are set at both ends of the longitudinal connecting plate, automatically maintaining their position after the frame rotates. This allows the entire safety protection frame to be installed vertically or horizontally, meaning it can be placed to the side or above the conveyor line, increasing its application scenarios. The design of the cable-collecting rollers allows excess pull ropes to be wound around them. When the length of the entire frame needs to be adjusted, the pull ropes can be released or retracted without replacing them, adapting to different length adjustment requirements. The entire frame can be designed as a telescopic structure, allowing the safety protection frame to adapt to different length protection requirements.
[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A conveyor line with a safety guard frame, comprising a safety guard frame and a conveyor line body, wherein the safety guard frame is disposed on the side or above the conveyor line body, characterized in that, The device includes a long, narrow frame, a stop controller, and a Z-shaped pull rope connected longitudinally to the frame. The frame includes a longitudinal connecting plate and transverse connecting rods connected to both ends of the longitudinal connecting plate, with the two transverse connecting rods arranged in parallel. Each transverse connecting rod has at least one fixed pulley, and the base of the fixed pulley is fixedly connected to the transverse connecting rod, with the pulley portion pointing towards the transverse connecting rod on the opposite side. One of the transverse connecting rods has an elastic connection structure, one end of the pull rope is connected to the elastic connection structure, and the other end passes through the fixed pulley on the opposite side and the fixed pulley on this side before connecting to the pull switch on the stop controller of the transverse connecting rod on the opposite side.
2. A conveyor line with a safety guard frame according to claim 1, characterized in that, It also includes a longitudinal link that connects the ends of two transverse links.
3. A conveyor line with a safety guard frame according to claim 1, characterized in that, The longitudinal connecting plate is provided with damping structure pivots at both ends, so that the frame can rotate and be fixed around the damping structure pivots.
4. A conveyor line with a safety guard frame according to claim 3, characterized in that, It also includes a mounting base, which is connected to the rotating shaft of the damping structure.
5. A conveyor line with a safety guard frame according to claim 1, characterized in that, It also includes a feed roller, fixed to a transverse link near the elastic connection structure, with the end of the pull rope wound around the feed roller.
6. A conveyor line with a safety guard frame according to claim 1, characterized in that, The elastic connection structure is a spring, and the end of the spring is connected to the pull rope.
7. A conveyor line with a safety guard frame according to claim 1, characterized in that, The longitudinal connecting plate is a telescopic structure. Correspondingly, when using a longitudinal connecting rod, the longitudinal connecting rod is also a telescopic structure, or the longitudinal connecting rod has different length specifications to adapt to the length of the longitudinal connecting plate.