Anti-falling device for rail passing of self-locking electric hoist
By introducing connecting components and self-locking plates into the electric hoist rail-crossing device, the problem of inaccurate alignment of the electric hoist between rails is solved, enabling safe movement and efficient operation of the electric hoist, and improving the accuracy of rail docking and the reliability of lifting operations.
Patent Information
- Application Number
- CN202520269597.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-20
AI Technical Summary
When existing electric hoists move back and forth between the tracks, they cannot ensure that the tracks are accurately aligned, which can easily lead to roller misalignment, jamming, or detachment from the tracks, affecting the safety and efficiency of lifting operations.
A fall prevention device for a self-locking electric hoist is designed, comprising a connecting component between a suspended first and second track. A series shaft is driven by an electric push rod to reciprocate in the through holes of the sliding plate and the series plate to ensure track alignment. The safe movement and limiting of the electric hoist are achieved through the cooperation of the self-locking plate and the drive plate.
This ensures accurate alignment of the electric hoist with the rails, prevents roller misalignment and jamming or detachment, improves the safety and efficiency of movement, avoids accidental slippage, and significantly enhances the reliability and stability of lifting operations.
Smart Images
Figure CN223592282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rail crossing devices, in particular to a falling prevention device for electric hoist rail crossing with self-locking. BACKGROUND
[0002] In the galvanizing production process, the electric hoist is often moved between different rails as a common lifting equipment, however, the traditional rails lack effective anti-falling devices, which makes it difficult to ensure the accurate alignment between the rails when the electric hoist moves back and forth between the rails, and this misalignment state is easy to cause the misalignment of the electric hoist rollers or the disengagement of the electric hoist from the rails, which seriously affects the safety and efficiency of the lifting operation. CONTENT OF THE INVENTION
[0003] The problem to be solved by the present application is that the existing electric hoist cannot ensure the accurate alignment between the rails when moving back and forth between the rails, which easily leads to the misalignment of the electric hoist rollers or the disengagement of the electric hoist from the rails.
[0004] To solve the above technical problems, the present application provides a falling prevention device for electric hoist rail crossing with self-locking, which comprises a first rail and a second rail arranged in parallel in the air, and a connecting assembly arranged between the first rail and the second rail for ensuring that the electric hoist can move back and forth only after accurate butt joint between the first rail and the second rail.
[0005] Since the rail crossing device of the present application is designed with a connecting assembly, this assembly can ensure the accurate butt joint between the first rail and the second rail, and allow the electric hoist to move back and forth freely between the two rails after butt joint, solving the problem that the electric hoist in the prior art cannot ensure the accurate alignment between the rails when moving back and forth between the rails, which easily leads to the misalignment of the electric hoist rollers or the disengagement of the electric hoist from the rails. BRIEF DESCRIPTION OF DRAWINGS
[0006] Figure 1 It is a schematic diagram of the state before connection between the rails.
[0007] Figure 2 It is a schematic diagram of the state after connection between the rails.
[0008] Figure 3 It is a schematic diagram of the state of the embodiment in three dimensions.
[0009] Figure 4 It is a schematic diagram of the self-locking state after separation between the rails.
[0010] In the figure: 1, first track; 2, electric hoist; 3, self-locking plate; 4, clamping block; 5, series connection plate; 6, series connection shaft; 7, connecting plate; 8, sliding sleeve plate; 9, electric push rod; 10, fixed seat; 11, second track; 12, hinged plate; 13, driving plate; 14, through hole. DETAILED DESCRIPTION
[0011] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. EMBODIMENT
[0012] The present application relates to a kind of with self-locking electric hoist over rail use anti-falling device, as shown in Figures 1-4 The anti-falling device includes two suspended and parallel arranged tracks, and the track is divided into first track 1 and second track 11, wherein the first track 1 is movable rail, and the first track 1 is moved in space by means of rail trolley (bridge crane), and the second track 11 is fixed rail, and the anti-falling device also includes connecting assembly arranged between the first track 1 and the second track 11, to ensure that the electric hoist 2 can move back and forth after accurately butting the first track 1 and the second track 11.
[0013] The connecting assembly includes electric push rod 9 horizontally arranged on the upper portion of the second track 11, and the fixed seat 10 connected with the second track 11 is arranged at the end of the electric push rod 9, and the sliding sleeve plate 8 arranged vertically and spaced apart is arranged on the upper portion of the second track 11, to support, and the through hole 14 for reciprocating sliding of the series connection shaft 6 is arranged on the upper portion of the sliding sleeve plate 8, so that the movement direction of the series connection shaft 6 is constrained and guided by means of the through hole 14.
[0014] The connecting assembly also includes series connection plate 5 arranged on the upper portion of the first track 1, and the series connection plate 5 is the same shape as the sliding sleeve plate 8 and also has the through hole 14, and one end of the electric push rod 9 is arranged with the series connection shaft 6 driven horizontally to reciprocate along the through hole 14, and when the series connection shaft 6 is placed in the through hole 14 of the series connection plate 5, it indicates that the two tracks have been completely aligned.
[0015] In order to avoid the electric hoist 2 from accidentally sliding along the space between the tracks when the tracks are not completely aligned, a self-locking plate 3 capable of rotating about its own axis and capable of being flipped down by its own gravity to limit the electric hoist 2 on the upper portion of the first track 1 is arranged at one end of the upper portion of the first track 1, and a driving plate 13 for driving the self-locking plate 3 to rotate about the first track 1 is arranged on the upper portion of the second track 11.
[0016] In order to realize the movement of the driving plate 13, the connecting plate 7 connected with the series shaft 6 is vertically arranged on the upper part of the series shaft 6, and the lower end of the connecting plate 7 is arranged with the hinge plate 12 for connecting with one end of the driving plate 13, so that the series shaft 6 is driven to reciprocate horizontally under the driving of the electric push rod 9, and the connecting plate 7 drives the driving plate 13 to rotate around the second track 11 through the hinge plate 12, when one end of the driving plate 13 abuts against the self-locking plate 3, the self-locking plate 3 is pushed to rotate around the first track 1, thereby losing the limiting effect on the electric hoist 2, so that the electric hoist 2 can freely reciprocate between the first track 1 and the second track 11.
[0017] By driving the series shaft 6 to reciprocate in the through hole 14 of the sliding sleeve plate 8 and the series plate 5 through the electric push rod 9, the accurate alignment of the first track 1 and the second track 11 is realized, and the safe movement of the electric hoist 2 between the tracks is ensured, and the setting of the self-locking plate 3 and the driving plate 13 effectively prevents the accidental falling of the electric hoist 2 when the tracks are not aligned, and significantly improves the efficiency and accuracy of the movement of the electric hoist 2 between the tracks.
[0018] In order to avoid excessive rotation of the driving plate 13 and the self-locking plate 3 during rotation, causing structural damage or affecting the normal work of the device, therefore, the clamping block 4 for realizing the circumferential rotation angle limiting operation is arranged on the upper part of the first track 1 and the second track 11.
[0019] For the self-locking plate 3 on the upper part of the first track 1, the clamping block 4 is arranged on one side of the rotation shaft of the self-locking plate 3, which cooperates with the rotation path of the self-locking plate 3 to limit the maximum rotation angle of the self-locking plate 3, when the self-locking plate 3 rotates under the action of gravity or the pushing action of the driving plate 13, once the set rotation angle is reached, the clamping block 4 will prevent it from continuing to rotate, thereby ensuring that the self-locking plate 3 is stably in the limiting state.
[0020] For the driving plate 13 on the upper part of the second track 11, the corresponding clamping block 4 is also arranged on one side of the rotation shaft of the driving plate 13, which cooperates with the rotation path of the driving plate 13 to limit the maximum rotation angle of the driving plate 13, when the driving plate 13 rotates under the driving of the series shaft 6 and the connecting plate 7, once the set rotation angle is reached, the clamping block 4 will prevent it from continuing to rotate, thereby ensuring that the driving plate 13 can accurately separate from the self-locking plate 3.
[0021] By setting the clamping block 4 to limit the rotation angle of the driving plate 13 and the self-locking plate 3, the problem of structural damage or device failure caused by excessive rotation is effectively avoided, and the stability and reliability of the device are improved.
[0022] In use, first, ensure that the first track 1 and the second track 11 are roughly aligned, so as to achieve accurate docking later, then start the electric push rod 9, so that it drives the tandem shaft 6 to slowly extend along the through hole 14 of the sliding sleeve plate 8 and the tandem plate 5, until the tandem shaft 6 is completely placed in the through hole 14 of the tandem plate 5, at this time, the first track 1 and the second track 11 are accurately aligned, at the same time, the hinge plate 12 is driven by the connecting plate 7, the driving plate 13 is pushed to rotate around the second track 11, the driving plate 13 rotates to abut against the self-locking plate 3, the self-locking plate 3 is pushed to rotate around the first track 1, so as to release the limiting action on the electric hoist 2, after the self-locking plate 3 is unlocked, the electric hoist 2 can freely reciprocate between the first track 1 and the second track 11 to carry out hoisting operation, when the electric hoist 2 needs to stop over-rail operation or needs to work on a specific track, the electric push rod 9 can be reversely driven, so that the driving plate 13 is separated from the self-locking plate 3, the self-locking plate 3 rotates around the first track 1 to the limiting position under the action of gravity, and the electric hoist 2 is limited.
[0023] In general, terminology can be understood at least in part from an understanding of the specialty or context. For example, and as used herein, the term "one or more" as used herein, depending at least in part upon context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Similarly, terms such as "a" and "the" can be understood to convey a singular usage or to convey a plural usage, depending at least in part upon context.
[0024] It should be readily understood that the terms "on," "above," and "on top of," in the present disclosure, are to be interpreted in the broadest context possible so that "on" not only means "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "above" or "on top of" not only includes the meaning of "above" or "on top of" but also can include the meaning of "above" or "on top of" without intervening features or layers therebetween (i.e., directly on).
[0025] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can likewise be interpreted according to the relative orientations of the devices in whichever orientations are being described.
[0026] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A fall protection device for use with a self-locking electric hoist for passing over a rail, comprising a first rail (1) and a second rail (11) arranged in suspension and in parallel, characterised in that: The connecting assembly is arranged between the first track (1) and the second track (11) to ensure that the electric hoist (2) can move back and forth only after the first track (1) and the second track (11) are accurately butted.
2. The anti-falling device for the electric hoist passing rail with self-locking according to claim 1, characterized in that: The connecting assembly comprises The electric push rod (9) is horizontally arranged on the upper portion of the second track (11) and connected to the second track (11) at the end thereof. The sliding sleeve plate (8) is vertically arranged on the upper portion of the second track (11) and is provided with two sliding sleeve plates (8) at intervals, and the upper portion of each sliding sleeve plate (8) is provided with a through hole (14). The series connection plate (5) is arranged on the upper portion of the first track (1) and is provided with a through hole (14) in the same shape as the sliding sleeve plate (8). The series connection shaft (6) is horizontally driven by the electric push rod (9) and is reciprocatingly extended and retracted along the through holes (14) of the sliding sleeve plate (8) and the series connection plate (5).
3. The anti-falling device for the electric hoist passing rail with self-locking according to claim 2, characterized in that: The connecting assembly further comprises the self-locking plate (3) arranged on one end of the upper portion of the first track (1) and capable of rotating around the self-locking plate (3) and capable of being flipped downward by the gravity of the self-locking plate (3) to limit the electric hoist (2) on the upper portion of the first track (1).
4. The anti-falling device for the electric hoist passing rail with self-locking according to claim 3, characterized in that: The connecting assembly further comprises the driving plate (13) arranged on the upper portion of the second track (11) and capable of rotating around the driving plate (13) to abut against the self-locking plate (3).
5. The anti-falling device for the electric hoist passing rail with self-locking according to claim 4, characterized in that: The connecting assembly further comprises the connecting plate (7) vertically arranged on the upper portion of the series connection shaft (6) and connected to the series connection shaft (6) and the hinge plate (12) arranged on the lower end of the connecting plate (7) and connected to one end of the driving plate (13).
6. The anti-falling device for the electric hoist passing rail with self-locking according to claim 4, characterized in that: The connecting assembly further comprises the clamping block (4) arranged on the upper portions of the first track (1) and the second track (11) to limit the circumferential rotation angle of the self-locking plate (3) and the driving plate (13).