Pull rope switch assembly of component force type belt conveyor

Abstract

The utility model discloses a component force type belt conveyor pull rope switch assembly, which relates to the technical field of switch assemblies and comprises a first support, a fixed pulley, a second support, a movable pulley and a triangular support, the second support is arranged on the outer side of the first support, and the movable pulley is movably mounted on the inner wall of the second support. The triangular support is arranged on the outer side of the second support, a rope fixing plate is installed on the outer wall of the triangular support, a positioning hole is formed in the inner wall of a positioning plate, and a rope is installed on the outer wall of the movable pulley in a surrounding mode. The performance mechanism is installed, the rope is led out from the switch at one end, sequentially bypasses the fixed pulley and the movable pulley and then is connected to the switch at the other end, a closed loop is formed, an operator only needs to slightly pull the rope, the rope easily triggers the switch through the component force effect of the pulley block, rapid shutdown is achieved, the whole system is designed in a modularized mode, and cost is reduced. And the pulley block and the triangular bracket can be quickly mounted and dismounted and are convenient to maintain and replace.

Description

Technical Field

[0001] This utility model relates to the field of switch assembly technology, specifically a force-sharing belt conveyor pull rope switch assembly. Background Technology

[0002] Pull-cord switches are crucial safety devices for belt conveyors, used for emergency shutdowns. However, existing pull-cord switches suffer from the following problems: the pull cord is too long, making operation laborious, especially on long-distance conveyors; the pull cord is prone to slack or jamming after prolonged use, leading to switch malfunction; and the straight arrangement of the pull cord makes operation inconvenient, particularly in complex terrain or space-constrained locations. Therefore, an improved pull-cord switch structure is needed to address these issues.

[0003] Patent document CN212676161U discloses a pull-cord switch assembly with improved safety. It discloses that the assembly includes a mounting chamber, inside which two mounting bases are movably mounted. A switch body is fixedly connected to the top of the two mounting bases. Two telescopic components located inside the mounting bases are fixedly connected to the inner bottom wall of the mounting chamber. A fixing block is fixedly connected to the inner bottom wall of the mounting chamber, and a first spring is fixedly connected to both sides of the fixing block. This improved pull-cord switch assembly allows for quick disassembly of the switch body by pulling two sleeve rods upwards, causing both movable blocks to move upwards and stretching the return springs. Through a first U-shaped connecting frame, a second U-shaped connecting frame, and a first connecting rod, the mounting block detaches from the mounting slot, allowing the mounting base to be directly pulled out of the mounting chamber. This achieves quick disassembly of the switch body, saving working time and facilitating use.

[0004] However, the aforementioned publicly available literature's proposed pull-cord switch assembly, which offers better security, primarily focuses on enabling quick disassembly of the switch body, saving working time and facilitating use. However, it does not address the issues of pull-cord switches being laborious to operate and prone to malfunction.

[0005] In view of this, it is necessary to develop a performance mechanism to solve the problems of laborious operation and easy malfunction of the pull rope switch. Utility Model Content

[0006] The purpose of this utility model is to provide a pull rope switch assembly for a force-sharing belt conveyor, so as to solve the technical problem of improving the performance of the pull rope switch assembly for a force-sharing belt conveyor mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pull rope switch assembly for a force-sharing belt conveyor, comprising: a first bracket, a fixed pulley, and a performance mechanism provided on the outer wall of the first bracket, the performance mechanism being used to solve the problems of laborious operation and easy failure of the pull rope switch;

[0008] The performance mechanism includes a second support, a movable pulley, and a triangular support. The second support is located outside the first support, and the movable pulley is movably installed on the inner wall of the second support. The triangular support is located outside the second support, and a rope fixing plate is installed on the outer wall of the triangular support. A positioning plate is installed on the outer wall of the triangular support, and a positioning hole is provided on the inner wall of the positioning plate. A rope is installed around the outer wall of the movable pulley.

[0009] Preferably, the fixed pulley is disposed on the inner wall of the first bracket.

[0010] Preferably, the outer wall of the first support is provided with a limiting mechanism, which is used to limit the suspended rope.

[0011] Preferably, the limiting mechanism includes a fixing plate and a limiting block, wherein the fixing plate is disposed on the outer wall of the first bracket.

[0012] Preferably, the top of the fixing plate is provided with an adjusting screw groove, and the inner wall of the adjusting screw groove is provided with an adjusting screw.

[0013] Preferably, the limiting block is disposed at the top of the adjusting screw.

[0014] Preferably, the outer wall of the limiting block is provided with a limiting groove, and the inner wall of the limiting groove is provided with a wear-resistant soft layer.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model solves the problems of laborious operation and easy malfunction of pull rope switches by installing a performance mechanism. The triangular bracket is fixed to the conveyor frame by positioning plates and positioning holes with high-strength bolts to ensure its stability and load-bearing capacity. The position of the pulley block is optimized according to the length of the conveyor and the terrain conditions to minimize the straight length of the rope. The rope is led out from one end of the switch, passes through the fixed pulley and the movable pulley in sequence, and connects to the other end of the switch to form a closed loop. The triangular bracket is installed below the pulley block. The triangular bracket is welded with high-quality angle steel. One end of the triangular bracket is fixed to the belt conveyor frame by bolts. When an emergency stop is required, the operator only needs to pull the rope gently. The rope, through the force of the pulley block, easily triggers the switch to achieve a quick stop. The entire system adopts a modular design. The pulley block and triangular bracket can be quickly installed and disassembled, which is convenient for maintenance and replacement.

[0017] 2. This utility model uses a limiting mechanism to restrict the suspension of a rope. Existing ropes often have suspended sections; limiting these sections restricts the rope's sliding range, preventing it from exceeding the design limits and avoiding excessive stretching or derailment. This protects the rope and related mechanical structures from damage. Depending on the rope's position, rotating the limiting block moves the adjusting screw within its groove. One end of the rope is then inserted into the limiting groove in the limiting block, thus using the groove to restrict the rope's movement. A wear-resistant soft layer protects the limiting groove and the rope, extending their service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the fixing plate part of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting block part of this utility model;

[0021] Figure 4 This is a schematic diagram of the wear-resistant soft layer of this utility model.

[0022] In the diagram: 1. First support; 2. Fixed pulley; 3. Second support; 4. Movable pulley; 5. Triangular support; 6. Rope fixing plate; 7. Positioning plate; 8. Positioning hole; 9. Rope; 10. Fixing plate; 11. Adjusting screw groove; 12. Adjusting screw; 13. Limiting block; 14. Limiting groove; 15. Wear-resistant soft layer. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2A pull rope switch assembly for a force-sharing belt conveyor includes: a first support 1, a fixed pulley 2, and a performance mechanism on the outer wall of the first support 1. This performance mechanism addresses the problems of laborious operation and easy malfunction of the pull rope switch. The performance mechanism includes a second support 3, a movable pulley 4, and a triangular support 5. The second support 3 is located outside the first support 1, and the movable pulley 4 is movably mounted on the inner wall of the second support 3. The triangular support 5 is located outside the second support 3, and a rope-fixing plate 6 is mounted on the outer wall of the triangular support 5. A positioning plate 7 is mounted on the outer wall of the triangular support 5, and a positioning hole 8 is provided on the inner wall of the positioning plate 7. A rope 9 is circumferentially mounted on the outer wall of the movable pulley 4. The fixed pulley 2 is located outside the first support 1. On the inner wall of a support 1, pulley blocks are added at both ends of the pull rope switch. A basic pulley block consisting of a fixed pulley 2 on the first support 1 and a movable pulley 4 on the second support 3 is used. Through the mechanical gain effect of the movable pulley 4, the operating force is reduced by 50%, significantly reducing the pulling force required during operation and making the pull rope operation more effortless. A triangular support 5 is used to position the pulley block. Utilizing the stability of the triangular structure, the force on the rope 9 is distributed to multiple support points of the support, further reducing the load on the pull rope and preventing damage or malfunction due to excessive force. The pull rope system adopts an adjustable length design. Through the cooperation of the pulley block and the triangular support 5, it allows for adjustment according to the actual conveyor... The length of the pull rope can be flexibly adjusted according to terrain conditions to avoid slack or operational inconvenience caused by excessive rope length. Rope 9 is made of high-strength, wear-resistant high-density polyethylene (HDPE), which has excellent tensile strength and wear resistance, and can withstand friction and impact during long-term use. Simultaneously, a dustproof coating is added to the surface of rope 9 to reduce the adhesion of dust and impurities, preventing the pull rope from jamming or malfunctioning, significantly improving the pull rope's wear resistance and impact resistance, effectively extending the service life of the pull rope switch, and reducing maintenance costs. The triangular bracket 5 is fixed to the conveyor frame by high-strength bolts through the positioning plate 7 and positioning holes 8, ensuring its stability and load-bearing capacity. The position of the pulley block is determined according to the conveyor's... The length of the conveyor belt and the terrain conditions are optimized to minimize the straight length of the rope 9. The rope 9 is led out from one end switch, passes through the fixed pulley 2 and the movable pulley 4 in sequence, and connects to the other end switch to form a closed loop. A triangular bracket 5 is installed below the pulley block. The triangular bracket 5 is welded from high-quality angle steel. One end of the triangular bracket 5 is fixed to the conveyor frame with bolts. When an emergency stop is required, the operator only needs to pull the rope 9 gently. The rope 9, through the force of the pulley block, easily triggers the switch to achieve a quick stop. The entire system adopts a modular design. The pulley block and the triangular bracket 5 can be quickly installed and disassembled, which is convenient for maintenance and replacement.

[0027] Please see Figure 2 , Figure 3 and Figure 4The outer wall of the first support 1 is provided with a limiting mechanism to limit the suspended rope 9. The limiting mechanism includes a fixing plate 10 and a limiting block 13. The fixing plate 10 is disposed on the outer wall of the first support 1. The top of the fixing plate 10 is provided with an adjusting screw groove 11. The inner wall of the adjusting screw groove 11 is provided with an adjusting screw 12. The limiting block 13 is disposed on the top of the adjusting screw 12. The outer wall of the limiting block 13 is provided with a limiting groove 14. The inner wall of the limiting groove 14 is fitted with a wear-resistant soft layer 15. Existing ropes 9 often have suspended parts. The suspended portion is then limited to restrict the sliding range of the rope 9, preventing it from exceeding the design allowable area, avoiding excessive stretching or derailment, thereby protecting the rope and related mechanical structures from damage. Depending on the position of the rope 9, rotating the limiting block 13 causes the adjusting screw 12 to move in the adjusting screw groove 11. Then, one end of the rope 9 is inserted into the limiting groove 14 in the limiting block 13, thus limiting the rope 9. The wear-resistant soft layer 15 protects the limiting groove 14 and the rope 9, improving their service life.

[0028] The working principle involves adding pulley blocks at both ends of the pull rope switch. A basic pulley block is formed by a fixed pulley 2 on the first support 1 and a movable pulley 4 on the second support 3. Through the mechanical gain effect of the movable pulley 4, the operating force is reduced by 50%, significantly reducing the pulling force required during operation and making the pull rope operation more effortless. A triangular support 5 is used to position the pulley block. Utilizing the stability of the triangular structure, the force on the rope 9 is distributed to multiple support points of the support, further reducing the load on the pull rope and preventing damage or malfunction due to excessive force. The pull rope system adopts an adjustable length design. Through the cooperation of the pulley block and the triangular support 5, it allows for adjustments based on the actual conveyor... The length of the pull rope can be flexibly adjusted according to terrain conditions to avoid slack or operational inconvenience caused by excessive rope length. Rope 9 is made of high-strength, wear-resistant high-density polyethylene (HDPE), which has excellent tensile strength and wear resistance, and can withstand friction and impact during long-term use. Simultaneously, a dustproof coating is added to the surface of rope 9 to reduce the adhesion of dust and impurities, preventing the pull rope from jamming or malfunctioning, significantly improving the pull rope's wear resistance and impact resistance, effectively extending the service life of the pull rope switch, and reducing maintenance costs. Pulley blocks are installed at both ends of the pull rope switch, and the triangular bracket 5 is fixed to the conveyor frame by high-strength bolts through the positioning plate 7 and positioning holes 8. To ensure stability and load-bearing capacity, the pulley block's position is optimized based on the conveyor's length and terrain conditions to minimize the straight-line length of rope 9. Rope 9 originates from one switch, passes sequentially around fixed pulley 2 and movable pulley 4, and connects to the other switch, forming a closed loop. A triangular bracket 5, made of high-quality angle steel, is installed below the pulley block. One end of the bracket 5 is bolted to the conveyor frame. In case of emergency stop, the operator simply pulls rope 9 gently. Through the pulley block's force, rope 9 easily triggers the switch, achieving rapid stop. The entire system adopts a modular design. The wheel assembly and triangular bracket 5 can be quickly installed and disassembled for easy maintenance and replacement. Since the existing rope 9 often has a suspended portion, this suspended portion is limited to restrict the sliding range of the rope 9, preventing it from exceeding the design limits and avoiding excessive stretching or derailment. This protects the rope and related mechanical structures from damage. Based on the position of the rope 9, rotating the limiting block 13 moves the adjusting screw 12 in the adjusting screw groove 11. Then, one end of the rope 9 is inserted into the limiting groove 14 in the limiting block 13, thus limiting the rope 9. The wear-resistant soft layer 15 protects the limiting groove 14 and the rope 9, improving their service life.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A component of a tensioned rope switch assembly for a force- balanced belt conveyor, comprising: It includes: first support (1), fixed pulley (2), the outer wall of first support (1) is equipped with performance mechanism, performance mechanism is used to solve the problem of rope switch operation, easy to lose power; Performance mechanism includes second support (3), movable pulley (4) and triangular support (5), the inner wall of second support (3) is movably installed with movable pulley (4), the outer wall of triangular support (5) is installed with fixed rope plate (6), the outer wall of triangular support (5) is installed with positioning plate (7), the inner wall of positioning plate (7) is equipped with positioning hole (8), the outer wall of movable pulley (4) is installed with rope (9).

2. The pull rope switch assembly for a force-sharing belt conveyor according to claim 1, characterized in that: The fixed pulley (2) is arranged on the inner wall of the first support (1).

3. The pull rope switch assembly for a force-sharing belt conveyor according to claim 1, characterized in that: The outer wall of the first support (1) is provided with a limiting mechanism, and the limiting mechanism is used for limiting the suspended rope (9).

4. The pull rope switch assembly for a force-sharing belt conveyor according to claim 3, characterized in that: The limiting mechanism includes a fixed plate (10) and a limiting block (13), and the fixed plate (10) is arranged on the outer wall of the first support (1).

5. The pull rope switch assembly for a force-sharing belt conveyor according to claim 4, characterized in that: The top of the fixed plate (10) is provided with an adjusting screw groove (11), and the inner wall of the adjusting screw groove (11) is provided with an adjusting screw (12).

6. The pull rope switch assembly for a force-sharing belt conveyor according to claim 5, characterized in that: The limiting block (13) is arranged on the top of the adjusting screw (12).

7. A pull rope switch assembly for a force-sharing belt conveyor according to claim 4, characterized in that: The outer wall of the limiting block (13) is provided with a limiting groove (14), and the inner wall of the limiting groove (14) is installed with a wear-resistant soft layer (15).

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