Rope wheel fixing piece with safety switch

Abstract

The utility model relates to the field of rope wheel protection equipment, and discloses a rope wheel fixing piece with a safety switch, which comprises a fixing frame and a lifting wheel, a mounting component is arranged at the bottom of the front surface of the fixing frame, a wheel shaft is fixedly connected to the axis of the front surface of the lifting wheel, and a protection component is arranged at the front end of the front surface of the wheel shaft. The protection assembly comprises a mounting block, a fixing strip is fixedly connected to the right end of the front surface of the mounting block, an electric telescopic rod is detachably connected to the right surface of the fixing strip, a positioning plate is fixedly connected to the left end of the electric telescopic rod, and a positioning block is detachably connected to the left side of the axis of the front surface of the mounting block. According to the lifting wheel protection device, the damping effect on vibration of the lifting wheel is achieved through mutual cooperation of connection relations of components in the protection assembly, the positioning plate is matched with the positioning block to clamp the wheel shaft, the two-layer locking effect on the lifting wheel is achieved, and convenience and safety are improved when workers maintain an elevator.

Description

Technical Field

[0001] The utility model relates to the field of rope wheel protection equipment, in particular to a rope wheel fixing piece with a safety switch. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car moves on at least two columns of rigid tracks perpendicular to the horizontal plane. There are also step-type ones, where the tread plates are installed on the tracks and run continuously, commonly known as escalators or moving sidewalks. The traction wheel is the rope wheel on the traction machine, also known as the traction rope wheel or drive rope wheel, which is a device for transmitting the traction power of the elevator and uses the friction between the traction steel wire rope and the rope groove on the traction wheel rim to transmit power.

[0003] After retrieval, Chinese Patent Publication No.: CN206142605U discloses a return rope wheel fixing device, which includes a cross beam, a protective cover, an L-shaped bent plate, a wheel shaft, and a return rope wheel. The cross beam adopts a C-shaped structure, and the backs of the two cross beams are arranged in parallel. The protective cover is horizontally arranged on the upper surface between the two cross beams. The L-shaped bent plates are respectively arranged on the lower surface of the cross beam. Circular holes are arranged on the L-shaped bent plates. The wheel shaft is horizontally arranged between the two circular holes. The return rope wheel is arranged on the outer periphery of the wheel shaft and is located below the protective cover. The wheel shaft and the return rope wheel are connected by bearings. In this way, in the return rope wheel fixing device of the utility model, the distance between the backs of the two cross beams is greater than the length of the wheel shaft, and part of the return rope wheel is hidden between the two cross beams, which can effectively reduce the top floor height and facilitate the disassembly and replacement of the return rope wheel. When the diameter of the wheel shaft is the same, the safety factor is higher and it is safer.

[0004] The above device has the following defects: when the anti-rope wheel shock absorption system is operating, the relatively sliding parts inside it are prone to offset movement. This long-term offset will cause the gap between the parts to gradually increase, thereby affecting the service life of the elevator. In addition, the installation process of the existing anti-rope wheel is complex, which increases the difficulty of maintenance and replacement. In the working state, due to the small supporting surface, the anti-rope wheel may bear excessive local pressure, which not only increases the risk of shaft breakage but also poses a potential threat to the safe operation of the elevator. Therefore, a rope wheel fixing piece with a safety switch is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a rope wheel fixing piece with a safety switch, aiming to improve the problems of poor shock absorption effect and inconvenient maintenance of the hoisting wheel in the existing technology.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a rope wheel fixing member with a safety switch, including a fixing frame and a hoisting wheel. An installation component is arranged at the bottom of the front surface of the fixing frame. A wheel shaft is fixedly connected to the center of the front surface of the hoisting wheel. A protection component is arranged at the front end of the front surface of the wheel shaft. The protection component includes an installation block. A fixing strip is fixedly connected to the right end of the front surface of the installation block. An electric telescopic rod is detachably connected to the right surface of the fixing strip. A positioning plate is fixedly connected to the left end of the electric telescopic rod. A positioning block is detachably connected to the left side of the center of the front surface of the installation block. A fixing rod is fixedly connected to the top end of the left inner wall of the fixing frame. A bottom plate is penetrated and connected to the outer surface of the fixing rod. The bottom plate is fixedly connected to the lower surface of the inner wall of the fixing frame through an elastic member.

[0007] As a further description of the above technical solution: The installation component includes an auxiliary plate. A plurality of uniformly distributed installation grooves are formed on the lower surface of the auxiliary plate. A plurality of triangular blocks are fixedly connected to the upper surface of the auxiliary plate.

[0008] As a further description of the above technical solution: The bottom end of the elastic member is fixedly connected to the lower surface of the inner wall of the fixing frame, and the top end of the elastic member is fixedly connected to the middle of the upper surface of the inner wall of the fixing frame.

[0009] As a further description of the above technical solution: The control signal of the electric telescopic rod is adapted to the emission signal of the controller.

[0010] As a further description of the above technical solution: A storage groove is formed at the center of the front surface of the installation block. The cross-sectional area of the storage groove is adapted to the cross-sectional area of the wheel shaft. The wheel shaft is penetrated and connected to the center of the front surface of the installation block.

[0011] As a further description of the above technical solution: The four corners of the outer wall of the fixing frame are arranged in a rounded shape. Reinforcing plates are detachably connected to the left and right ends of the upper surface of the fixing frame. A limiting block is fixedly connected to the rear surface of the reinforcing plate.

[0012] As a further description of the above technical solution: The auxiliary plate is welded to the bottom of the front surface of the fixing frame.

[0013] As a further description of the above technical solution: The lower surface of the installation block is fixedly connected to the middle of the upper surface of the bottom plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present utility model, through the mutual cooperation of components such as the positioning block and the fixing strip in the protection component using the connection relationship, the shock absorption effect on the vibration of the hoisting wheel is achieved, avoiding the occurrence of the phenomenon that the internally relatively sliding components deviate. Moreover, the positioning plate cooperates with the positioning block to clamp the wheel shaft, achieving a double-layer locking effect on the hoisting wheel, improving the convenience and safety for the staff to maintain the elevator, and enriching the protection diversity of the protection component.

[0016] 2. In the present utility model, through the mutual cooperation of components such as the limiting block, the auxiliary plate, and the triangular block using the connection relationship, the rapid installation and disassembly of the equipment are realized, increasing the supporting area of the wheel shaft, avoiding the occurrence of the phenomenon that the counterweight pulley may break the shaft due to excessive local pressure, enhancing the anti-slip effect of the rope on the hoisting wheel, improving the tensioning effect of the rope during the operation of the hoisting wheel, and enhancing the positioning and protection effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front three-dimensional schematic view of the main body of the rope wheel fixing member with a safety switch proposed by the present utility model;

[0018] Figure 2 It is a side three-dimensional schematic view of the main body of the rope wheel fixing member with a safety switch proposed by the present utility model;

[0019] Figure 3 It is a schematic view of the partial cross-sectional area of the fixing frame of the rope wheel fixing member with a safety switch proposed by the present utility model;

[0020] Figure 4 It is the Figure 3 Enlarged schematic view of area A of the rope wheel fixing member with a safety switch proposed by the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Fixing frame; 2. Protection component; 21. Installation block; 22. Bottom plate; 23. Elastic member; 24. Fixing rod; 25. Positioning block; 26. Fixing strip; 27. Electric telescopic rod; 28. Positioning plate; 3. Limiting block; 4. Reinforcing plate; 5. Hoisting wheel; 51. Wheel shaft; 6. Installation component; 61. Auxiliary plate; 62. Installation groove; 63. Triangular block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Referring to Figure 1 - Figure 2 , an embodiment provided by the present utility model: a rope wheel fixing member with a safety switch, comprising a fixing frame 1 and a hoisting wheel 5. An installation component 6 is arranged at the bottom of the front surface of the fixing frame 1. The four top corners of the outer wall of the fixing frame 1 are arranged in a rounded corner structure. The fixing frame 1 plays a supporting role for the fixing device. Reinforcement plates 4 are detachably connected to the left and right ends of the upper surface of the fixing frame 1. Through the reinforcement plates 4, the supporting effect of the fixing rod 24 in the fixing frame 1 is enhanced. A limiting block 3 is fixedly connected to the rear surface of the reinforcement plate 4. The right surface of the limiting block 3 has an anti-slip effect on the rope on the hoisting wheel 5, avoiding the prior occurrence of winding due to the large distribution space of the rope in the hoisting wheel 5, and improving the tensioning effect of the rope during the operation of the hoisting wheel 5. A wheel shaft 51 is fixedly connected to the center of the front surface of the hoisting wheel 5. The rotation of the wheel shaft 51 drives the hoisting wheel 5 to move, realizing the lifting assistance for the elevator. A protection component 2 is arranged at the front end of the front surface of the wheel shaft 51.

[0025] Referring to Figure 2 - Figure 4, when the lifting wheel 5 operates, the protection component 2 is activated. The protection component 2 includes a mounting block 21, which plays a supporting role for the protection component 2. During the lifting and lowering of the elevator, after the elevator reaches the specified position during lifting and lowering, it will still move due to inertia. At this time, the braking system in the elevator is activated, and the rope is forcibly stopped through the braking system. The lifting wheel 5 is stopped through the rope, causing the lifting wheel 5 to vibrate. The bottom plate 22 is fixedly connected to the lower surface of the inner wall of the fixed frame 1 through an elastic member 23. The bottom end of the elastic member 23 is fixedly connected to the lower surface of the inner wall of the fixed frame 1, and the top end of the elastic member 23 is fixedly connected to the upper surface of the inner wall of the fixed frame 1. A positioning block 25 is detachably connected to the left side of the front surface center of the mounting block 21. A fixed rod 24 is fixedly connected to the top end of the left end of the inner wall of the fixed frame 1. The outer surface of the fixed rod 24 penetrates and connects with the bottom plate 22. A storage groove is formed at the center of the front surface of the mounting block 21. The cross-sectional area of the storage groove is adapted to the cross-sectional area of the wheel shaft 51. The wheel shaft 51 penetrates and connects to the center of the front surface of the mounting block 21. During the shock absorption process, the wheel shaft 51 drives the mounting block 21 to move, and the bottom plate 22 deforms the elastic member 23. Through the elastic damping generated by the deformation of the elastic member 23, the shock absorption effect on the vibration of the lifting wheel 5 is achieved, avoiding the phenomenon that the relatively sliding parts inside the anti-tension pulley shock absorption system deviate during operation, enhancing the protection and positioning effect of the protection component 2 on the rope pulley. The lower surface of the mounting block 21 is fixedly connected to the upper surface of the bottom plate 22. A fixing strip 26 is fixedly connected to the right end of the front surface of the mounting block 21. The right surface of the fixing strip 26 is detachably connected to an electric telescopic rod 27. The left end of the electric telescopic rod 27 is fixedly connected to a positioning plate 28. When the staff performs maintenance on the parts, through the signal sent by the external control device, the electric telescopic rod 27 moves to the left. The control signal of the electric telescopic rod 27 is adapted to the transmission signal of the external controller, driving the positioning plate 28 to cooperate with the positioning block 25 to clamp the wheel shaft 51, achieving the double-layer locking effect on the lifting wheel 5, improving the convenience and safety of the staff when maintaining the elevator, and enriching the protection diversity of the protection component 2.

[0026] Refer to Figure 1 - Figure 3 , when the staff needs to replace the equipment, the installation component 6 is activated. The installation component 6 includes an auxiliary plate 61, which is welded to the bottom of the front surface of the fixed frame 1. Multiple uniformly distributed installation grooves 62 are formed on the lower surface of the auxiliary plate 61. Through the installation grooves 62 in the auxiliary plate 61, the rapid installation and disassembly of the equipment can be completed, improving the convenience of the staff for installing and disassembling the equipment. Through the function of the auxiliary plate 61 and the fixed frame 1, the supporting area for the wheel shaft 51 is increased. Multiple triangular blocks 63 are fixedly connected to the upper surface of the auxiliary plate 61. Using the stability of the triangle in the triangular blocks 63, the phenomenon that the anti-tension pulley may bear excessive local pressure and cause the shaft to break is avoided, enhancing the protection effect on the equipment.

[0027] Working principle: When the hoisting wheel 5 operates, the protection component 2 is activated. During the lifting and lowering process of the elevator, after the elevator reaches the designated position during lifting and lowering, it will still move due to inertia. At this time, the braking system in the elevator is activated, and the rope is forcibly stopped through the braking system. The hoisting wheel 5 is stopped through the rope, causing the hoisting wheel 5 to vibrate. The wheel shaft 51 drives the mounting block 21 to move during the shock absorption process, and the bottom plate 22 deforms the elastic member 23. Through the elastic damping generated by the deformation of the elastic member 23, the shock absorption effect on the vibration of the hoisting wheel 5 is achieved, avoiding the phenomenon that the relatively sliding components inside the counterweight pulley shock absorption system deviate during operation, enhancing the protection and positioning effect of the protection component 2 on the rope pulley. When the staff performs maintenance on the parts, an external control device signal is sent out, causing the electric telescopic rod 27 to move to the left, driving the positioning plate 28 to cooperate with the positioning block 25 to clamp the wheel shaft 51, achieving a secondary locking effect on the hoisting wheel 5, improving the convenience and safety of the staff when maintaining the elevator, enriching the protection diversity of the protection component 2. When the staff needs to replace the equipment, the installation component 6 is activated, and the quick installation and disassembly of the equipment can be completed through the installation groove 62 in the auxiliary plate 61, improving the convenience of the staff for installing and disassembling the equipment. Through the action of the auxiliary plate 61 and the fixed frame 1, the supporting area of the wheel shaft 51 is increased, and the stability of the triangle in the triangular block 63 is utilized to avoid the phenomenon that the counterweight pulley may bear excessive local pressure and break the shaft, enhancing the protection effect on the equipment.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rope pulley fixing member with a safety switch, comprising a fixing frame (1) and a lifting wheel (5), characterized in that: A mounting assembly (6) is provided at the bottom of the front surface of the fixed frame (1); a wheel axle (51) is fixedly connected to the axis center of the front surface of the lifting wheel (5); a protection assembly (2) is provided at the front end of the front surface of the wheel axle (51); the protection assembly (2) comprises a mounting block (21); a fixing bar (26) is fixedly connected to the right end of the front surface of the mounting block (21); an electric telescopic rod (27) is detachably connected to the right surface of the fixing bar (26); a positioning plate (28) is fixedly connected to the left end of the electric telescopic rod (27); a positioning block (25) is detachably connected to the left side of the axis center of the front surface of the mounting block (21); a fixing rod (24) is fixedly connected to the top left end of the inner wall of the fixed frame (1); a bottom plate (22) is penetrated and connected to the outer surface of the fixing rod (24); and the bottom plate (22) is fixedly connected to the lower surface of the inner wall of the fixed frame (1) via an elastic member (23).

2. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: The mounting assembly (6) comprises an auxiliary plate (61), the lower surface of the auxiliary plate (61) being provided with a plurality of groups of evenly distributed mounting grooves (62), and the upper surface of the auxiliary plate (61) being fixedly connected with a plurality of groups of triangular blocks (63).

3. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: The bottom end of the elastic member (23) is fixedly connected to the lower surface of the inner wall of the fixing frame (1), and the top end of the elastic member (23) is fixedly connected to the upper surface of the inner wall of the fixing frame (1).

4. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: The control signal of the electric telescopic rod (27) and the transmission signal of the controller are adapted to each other.

5. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: A storage groove is provided at the axis center of the front surface of the mounting block (21); the cross-sectional area of ​​the storage groove is mutually compatible with the cross-sectional area of ​​the axle (51); and the axle (51) is connected through the axis center of the front surface of the mounting block (21).

6. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: The top corners of the outer wall of the fixing frame (1) are arranged as rounded structures, and the left and right ends of the upper surface of the fixing frame (1) are detachably connected to reinforcement plates (4), and the rear surface of the reinforcement plate (4) is fixedly connected to a limiting block (3).

7. The rope pulley fixing member with a safety switch according to claim 2, characterized in that: The auxiliary plate (61) is welded to the bottom of the front surface of the fixed frame (1).

8. The rope pulley fixing member with a safety switch according to claim 1, characterized in that: The lower surface of the mounting block (21) is fixedly connected to the upper surface of the bottom plate (22).

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