Track anti-falling device used during disassembly and assembly of electric hoist

Abstract

The utility model relates to a track anti-drop device during disassembly and assembly of an electric hoist, a track comprises a movable track and a fixed track, an anti-drop mechanism is arranged at the end position of the fixed track close to an interface, the anti-drop mechanism comprises an anti-drop connecting rod, the anti-drop connecting rod comprises a swing rod and a stop lever, the upper end of the swing rod is rotatably arranged at the upper end position of the inner side of the fixed track, and the stop lever is arranged at the lower end of the swing rod. The lower end of the stop lever is supported on the bottom of the inner side of the fixed rail, and a certain included angle is formed between the stop lever and the swing rod. The anti-falling mechanism has the advantages that the anti-falling mechanism can fall automatically due to the swing rod and the stop lever, the stop lever blocks one side of the moving trolley at the upper end of the electric hoist, the electric hoist is prevented from falling off from the fixed rail, and safety and reliability are achieved; sliding block mechanisms are designed on the two sides of the upper face of the movable track, and meanwhile a lower pressing rod, a lower pressing block and an extension rod are further designed, so that one end of a swing rod and one end of a stop rod are lifted, a movable trolley of the electric hoist enters the fixed track from the movable track conveniently, and installation and maintenance operation of the electric hoist is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electric hoist equipment, specifically to a track anti-detachment device during the assembly and disassembly of an electric hoist. Background Technology

[0002] Traditionally, electric hoists are designed with fixed tracks for movement, which can be circular tracks or long tracks with a predetermined route. These tracks are typically installed at or near the top of the work area. The electric hoist is suspended from a traveling trolley, which moves along the track to lift products. However, initial installation and subsequent maintenance require removing the electric hoist from the track. To facilitate disassembly, a notch is now created in the middle of the fixed track, allowing for the connection of a movable track. This movable track is lifted using conventional lifting equipment such as an electric lifting hoist, while the electric hoist is pre-positioned in the middle of the movable track. The movable track then moves the hoist to the fixed notch, and once connected, the hoist can be moved into the fixed track. However, this process presents several technical challenges: the notch in the fixed track lacks safety features, posing a risk of the hoist slipping out again; furthermore, the connection between the movable and fixed tracks requires precise alignment, which is difficult to perform. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model proposes a track anti-detachment device for electric hoists during assembly and disassembly. The device is ingeniously designed, has a reasonable and compact structure, and effectively prevents the electric hoist from detaching from the fixed track, ensuring safety and reliability.

[0004] The technical solution of this utility model:

[0005] An anti-derailment device for the track during the assembly and disassembly of an electric hoist includes a movable track and a fixed track. The fixed track has an interface for splicing the movable track. The movable track is vertically connected to the lower part of the lifting unit. The upper ends of the fixed track and the lifting unit are fixedly installed at or near the top of the work site. An anti-derailment mechanism is installed at the end of the fixed track near the interface. The anti-derailment mechanism includes an anti-derailment linkage, which includes a swing arm and a stop arm. The upper end of the swing arm near the interface is rotatably installed on the upper inner side of the fixed track near the interface. The lower end of the swing arm away from the interface is connected to the upper end of the stop arm. The lower end of the stop arm is supported on the bottom inner side of the fixed track. The stop arm and the swing arm form a certain angle.

[0006] The anti-detachment mechanism also includes an extension rod, a lower pressure block, and a lower pressure rod. The upper end of the swing arm is designed with an extension rod of a certain length. A lower pressure block is designed above the end of the extension rod. A lower pressure rod is installed on the upper end of the lower pressure block. The upper end of the fixed track is designed with a circular hole for the lower pressure rod to move up and down. The upper end of the lower pressure rod slides through the circular hole of the fixed track and extends a certain height above the fixed track. The end of the extension rod is designed as a semi-circle, and the semi-circle is located below the lower pressure block.

[0007] The movable track is equipped with slider mechanisms at both ends. The slider mechanism includes a slider, a solenoid valve, and a sliding sleeve. The solenoid valve is installed on the movable track near the end. The front end of the solenoid valve is connected to the slider. The sliding sleeve is installed on the upper end of the movable track. The slider is located inside the sliding sleeve by sliding horizontally. The solenoid valve controls the slider to extend a certain length from the sliding sleeve. The slider can press down on the fixed track or press down on the upper end of the pressure rod at the same time.

[0008] The lower pressure block has a U-shaped groove in the middle, and the semi-circular end of the extension rod is located inside the U-shaped groove.

[0009] The upper end of the pressure rod is designed with a pressure cap, and the upper end of the circular hole of the fixed track is designed with a corresponding groove. The height of the pressure cap is not greater than the depth of the groove, and the pressure cap can be located inside the groove.

[0010] Both the fixed track and the moving track are designed with rectangular cross-sections. The lower end of the rectangle has a lower groove, and the middle of the rectangle has two horizontal supports. The upper end of the rectangle has an upper groove.

[0011] The advantages of this invention are that the anti-detachment mechanism's swing arm and stop bar are designed to automatically drop down. The stop bar blocks one side of the upper moving trolley of the electric hoist, preventing the electric hoist from detaching from the fixed track, ensuring safety and reliability. A slider mechanism is designed on both sides of the moving track. The slider's extension and retraction are electrically controlled. When extended, the slider can be horizontally supported on the fixed track, ensuring quick alignment and splicing between the moving and fixed tracks. This invention also includes a pressure rod, a lower pressure block, and an extension rod. During alignment, the slider simultaneously presses down the pressure rod, which in turn presses down the end of the extension rod via the lower pressure block, lifting one end of the swing arm and stop bar. This facilitates the electric hoist's moving trolley moving from the moving track to the fixed track, or vice versa, making operation more convenient and facilitating the installation, maintenance, and repair of the electric hoist. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the mobile track and the fixed track of this utility model after they are connected.

[0013] Figure 2 This is a partially enlarged schematic diagram of the anti-detachment mechanism of this utility model in the open state.

[0014] Figure 3 This is a schematic diagram showing the state in which the moving track and the fixed track of this utility model are detached.

[0015] Figure 4 This is a partially enlarged schematic diagram of the anti-detachment mechanism of this utility model in the locked state.

[0016] Figure 5 This is a schematic diagram of the slider retracted state at the sliding mechanism of this utility model. Detailed Implementation

[0017] See attached document Figure 1-5 An anti-derailment device for the track during the assembly and disassembly of an electric hoist is disclosed. The track includes a movable track 1 and a fixed track 2. The fixed track 2 has an interface 3 for splicing the movable track 1. The movable track 1 is vertically connected to the lower part of the lifting part 6. The upper ends of the fixed track 2 and the lifting part 6 are fixedly installed at the top or near the top of the work site. An anti-derailment mechanism is installed at the end of the fixed track 2 near the interface 3. The anti-derailment mechanism includes an anti-derailment link 4. The anti-derailment link 4 includes a swing rod 41 and a stop rod 42. The upper end of the swing rod 41 near the interface 3 is rotatably installed at the upper inner side of the fixed track 2 near the interface 3. The lower end of the swing rod 41 away from the interface 3 is connected to the upper end of the stop rod 42. The lower end of the stop rod 42 is supported on the bottom inner side of the fixed track 2. The stop rod 42 and the swing rod 41 form a certain angle. The angled design ensures that when the swing arm is drooping, the stop bar can vertically block the travel path of the fixed track. Without external force, the swing arm and stop bar cannot rise from the inside of the fixed track. The moving trolley 7 of the electric hoist effectively blocks the travel path from the inside of the fixed track. The lifting unit 6 can be a top-mounted electric hoist or winch, or other lifting mechanism. Under gravity, the stop bar and swing arm remain within the travel path of the fixed track. To unlock them, manual lifting of the swing arm and stop bar from the outside is required.

[0018] The anti-detachment mechanism also includes an extension rod 43, a lower pressure block 44, and a lower pressure rod 45. The upper end of the swing arm 41 is designed with an extension rod 43 of a certain length. A lower pressure block 44 is designed above the end of the extension rod 43, and a lower pressure rod 45 is installed at the upper end of the lower pressure block 44. The upper end of the fixed track 2 is designed with a circular hole for the lower pressure rod 45 to move up and down. The upper end of the lower pressure rod 45 slides through the circular hole of the fixed track 2 and extends a certain height above the fixed track 2. The end of the extension rod 43 is designed as a semi-circle 431, located below the lower pressure block 44. To facilitate unlocking the swing arm and the stop bar from the outside, a lower pressure block, a lower pressure rod, and an extension rod are designed. The extension rod, swing arm, and stop bar are integrally formed, and the weight of the swing arm and stop bar is greater than the weight of the extension rod, the lower pressure rod, and the lower pressure block.

[0019] The lower pressure block 44 has a U-shaped groove 441 in the middle, and the semi-circular end 431 of the extension rod 43 is located in the U-shaped groove 441. The semi-circular design ensures that the extension rod rotates smoothly without jamming, and the U-shaped groove design prevents the extension rod from falling off the lower pressure block, thus ensuring effective cooperation.

[0020] The upper end of the pressing rod 45 is designed with a pressure cap 451, and the upper end of the circular opening of the fixed track 2 is correspondingly designed with a groove. The height of the pressure cap 451 is not greater than the depth of the groove, and the pressure cap 451 can be located inside the groove. The pressure cap design prevents the pressing rod from falling out of the track, and the groove design ensures that the pressure cap can be hidden without causing interference. This ensures that the moving track and the fixed track are flush when the slider is pressed down.

[0021] The movable track 1 has slider mechanisms 5 installed at both ends. Each slider mechanism 5 includes a slider 51, a solenoid valve 52, and a sliding sleeve 53. The solenoid valve 52 is installed near the end of the movable track 1, and its front end is connected to the slider 51. The sliding sleeve 53 is installed at the end of the movable track 1, and the slider 51 slides horizontally within the sliding sleeve 53. The solenoid valve 52 controls the slider 51 to extend outward from the sliding sleeve 53 by a certain length. The slider 51 can press down on the fixed track 2 or simultaneously press down on the upper end of the pressing rod 45. The slider on the movable track is designed to support the fixed track, ensuring the movable and fixed tracks are flush. The solenoid valve is designed for remote control operation, and the sliding sleeve is designed for guidance and positioning, ensuring the slider's running accuracy.

[0022] Both the fixed track 2 and the moving track 1 have rectangular cross-sections. A lower slot is formed at the bottom of the rectangle, and two horizontal braces are designed in the middle. An upper slot is also designed at the top. Both the fixed track 2 and the moving track 1 are existing technologies. In this application, we briefly describe the lower slot at the bottom of the rectangle. The wheels of the traveling trolley used to suspend the electric hoist press down on both ends of the inner side of the lower slot. The lower slot allows the lifting ring of the electric hoist to extend out of the track. Since it needs to move, it must be designed as a lower slot the same length as the track. The horizontal brace design ensures the reliable strength of the track structure.

[0023] In use, during installation, the electric hoist to be installed is hooked below the moving trolley 7 inside the moving track. The lifting unit 6 raises the moving track and the electric hoist together. During the rising process, the moving track is positioned and spliced ​​with the fixed track through the splicing guide groove, which is existing technology. Without detaching from the splicing guide groove, the moving track is higher than the fixed track by a certain height. The slider is extended by the electric remote control solenoid valve, and then the moving track is lowered so that the sliders on both sides press down on the corresponding fixed tracks on both sides. At the same time, the sliders can press down the lowering rods designed on both sides. The lowering rods, along with the lowering blocks, press down the semi-circular position of the extension rod, causing the swing arm and the stop bar to rise. At this time, the moving track and the fixed track are aligned. With the tracks aligned, the moving trolley 7, carrying the electric hoist below, moves into the fixed track. Then, the solenoid valve is controlled to retract the slider, causing the swing arm and stop bar to fall under gravity. The lowering rod and lowering block passively rise, and the stop bar again blocks the movement within the fixed track, locking it in place and preventing the moving trolley 7 from detaching from the fixed track, ensuring safety and reliability. For disassembly, the operation is reversed: first, the lowering rod is pressed down via the slider mechanism, causing the stop bar to lift and unlock. Simultaneously, the moving track and fixed track are ensured to be aligned, facilitating the movement of the moving trolley 7 into the moving track. The electric hoist suspended below can then descend to the ground via the moving track under the control of the lifting unit 6, facilitating future maintenance and repair.

Claims

1. A track anti-disengagement device for disassembling an electric hoist, the track comprising a movable track and a fixed track, the fixed track having an interface for splicing the movable track, the movable track being connected to a lifting part in a lifting manner, and the fixed track and the upper end of the lifting part being fixedly installed on or near the top of a working site; characterized in that, The anti-falling mechanism is installed on the end of the fixed track near the interface, and includes an anti-falling connecting rod, which comprises a swing rod and a blocking rod. The upper end of the swing rod near the interface is rotatably installed on the inner side of the end of the fixed track near the interface. The lower end of the swing rod away from the interface is connected to the upper end of the blocking rod. The lower end of the blocking rod is supported on the inner bottom of the fixed track. The blocking rod and the swing rod form a certain angle.

2. The track anti-drop device for disassembling the electric hoist according to claim 1, characterized in that, The anti-falling mechanism further comprises an extension rod, a pressing block and a pressing rod. The upper end of the swing rod is designed with an extension rod of a certain length. The upper end of the pressing block is installed on the end of the extension rod. The pressing rod is installed on the upper end of the pressing block. The upper end of the pressing rod is slidably penetrated through the circular hole of the fixed track and extends above the fixed track by a certain height. The end of the extension rod is designed in a semicircle shape, which is located below the pressing block.

3. The track anti-drop device for disassembling an electric hoist according to claim 1 or 2, characterized in that, The upper end of the fixed track is designed with a circular hole for the up-and-down movement of the pressing rod. The upper end of the pressing rod is slidably penetrated through the circular hole of the fixed track and extends above the fixed track by a certain height. The end of the extension rod is designed in a semicircle shape, which is located below the pressing block.

4. The track anti-drop device for disassembling the electric hoist according to claim 2, characterized in that, The upper end of the pressing rod is designed with a pressing cap. The upper end of the circular hole of the fixed track is designed with a sunken groove. The height of the pressing cap is not greater than the depth of the sunken groove. The pressing cap is located in the sunken groove.

5. The track anti-drop device for disassembling the electric hoist according to claim 2, characterized in that, The cross section of the fixed track and the moving track is designed in a rectangular body. The lower end of the rectangular body is designed with a lower strip-shaped groove. The middle of the rectangular body is designed with two upper and lower horizontal supports. The upper end of the rectangular body is designed with an upper strip-shaped groove.

6. The track anti-drop device for disassembling the electric hoist according to claim 1, characterized in that, ​

Images