Anti-falling guide device

Abstract

An anti-falling guiding device relates to the technical field of lifting equipment and comprises a stand column and a sliding sleeve. The stand column is vertically arranged, and a column body of the stand column is slidably sleeved with a sliding sleeve. A cavity is formed in the stand column, and a plurality of stop mechanisms are arranged in the cavity from bottom to top at intervals. The stopping mechanism comprises an eccentric stopping plate which is correspondingly hinged to the stand column through a hinge shaft; an open slot capable of extending one end of the eccentric baffle plate is formed in a position, corresponding to the eccentric baffle plate, of the upright post; the sliding sleeve is effectively prevented from moving downwards accidentally through the multiple stop mechanisms, and the safety performance is improved. The sliding sleeve is automatically unlocked when moving upwards and is automatically locked after moving upwards in place, so that the operation efficiency is improved; all the stop mechanisms are unlocked at a time through the unlocking mechanism, one-by-one manual operation is avoided, and use convenience is improved; the unlocking mechanism is flexible in design and can adapt to different installation spaces and use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to an anti-falling guide device. Background Art

[0002] In the fields of industrial production and lifting equipment, various lifting or handling equipment are often needed to achieve vertical movement of goods. However, there is an important safety hazard in the operation of these equipment, that is, the goods or loads may accidentally fall during the lifting process, resulting in serious consequences such as equipment damage, casualties, and production interruption.

[0003] At present, the commonly used anti-falling methods include hydraulic self-locking, brake brake and manual device. The hydraulic self-locking form is composed of hydraulic locks, hydraulic pipelines, hydraulic joints and other components, which requires daily maintenance and inspection of the hydraulic pipelines. The internal part of the hydraulic lock cannot be fully inspected, which poses a safety hazard; the brake brake form requires daily inspection of the braking torque and tile wear, and the brake tile needs to be replaced frequently; the manual device is cumbersome to operate and is easy to be forgotten, which creates a safety hazard. Therefore, those skilled in the art are in urgent need of developing an anti-falling guide device with simple structure and reliable performance. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses an anti-falling guide device.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A fall prevention guide device comprises a column and a sliding sleeve; the column is arranged vertically, and the sliding sleeve is provided on the column body; a cavity is provided inside the column, and a plurality of stop mechanisms are arranged in the cavity from bottom to top; the stop mechanism comprises an eccentric stop plate hinged to the column via a hinge shaft; a slot is provided at the position of the column corresponding to the eccentric stop plate, through which one end of the eccentric stop plate can be extended.

[0007] Preferably, it further comprises an unlocking mechanism, wherein the unlocking mechanism comprises a sliding rod vertically slidably arranged in the cavity of the column, and a mixing shaft is arranged at the position of the sliding rod corresponding to the eccentric stop plate.

[0008] Preferably, the unlocking mechanism also includes a telescopic cylinder for driving the sliding rod to move up and down; the telescopic cylinder is arranged in the cavity of the column, and the telescopic end of the telescopic cylinder is correspondingly connected to the sliding rod; or the telescopic cylinder is arranged on one side of the bottom of the column, the telescopic end of the telescopic cylinder movably penetrates the side wall of the column, and the bottom of the sliding rod is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder.

[0009] Preferably, the articulated shaft body is sleeved with a torsion spring for allowing one end of the eccentric stop plate to extend out of the slot of the column.

[0010] Preferably, the end of the eccentric stop plate extending out of the slot of the column has a triangular structure.

[0011] Preferably, a limiting column for limiting the deflection angle of the eccentric stop plate when it is unlocked is provided above the corresponding hinge axis in the column cavity.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0013] The utility model discloses an anti-falling guide device, which has a simple structure, is easy to assemble, and has low assembly precision requirements; multiple stop mechanisms are used to effectively prevent the sliding sleeve from accidentally moving downward, thereby improving safety performance. The sliding sleeve is automatically unlocked when it moves upward, and automatically locked after it moves upward to a certain position, thereby improving operating efficiency.

[0014] The utility model further unlocks all the stop mechanisms at once through the unlocking mechanism, avoiding manual operation one by one, and improving the convenience of use. The unlocking mechanism is flexibly designed and can adapt to different installation spaces and usage scenarios.

[0015] The utility model further ensures that the eccentric stop plate remains in a locked state through a torsion spring, thereby improving the reliability of the stop mechanism. The triangular structure design of the eccentric stop plate optimizes the stop effect and prevents excessive deflection. The limit column limits the deflection angle of the eccentric stop plate, further improving the stability and reliability of the stop mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0018] In the figure: 1. column; 2. sliding sleeve; 3. hinged shaft; 4. eccentric stop plate; 5. sliding rod; 6. mixing shaft; 7. telescopic cylinder; 8. limit column. DETAILED DESCRIPTION

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0020] Embodiment 1:

[0021] Combined with Figures 1-2, an anti-falling guide device, comprising a column 1 and a sliding sleeve 2. The column 1 is arranged vertically, and the column body sliding sleeve is provided with the sliding sleeve 2. The column 1 is the foundation of the whole device, and its bottom needs to be fastened to the ground or the mounting surface of other equipment to ensure the stability of the whole device. The main function of the column 1 is to guide the sliding sleeve 2 so that it can move vertically up and down.

[0022] A cavity is provided inside the column 1, and a plurality of stop mechanisms are arranged in the cavity from bottom to top. The main function of the stop mechanism is to prevent the sliding sleeve 2 from accidentally moving downward, thereby ensuring its safety.

[0023] The structure of the stop mechanism is as follows:

[0024] The eccentric stop plate 4 is hinged to the column 1 via the hinge shaft 3 .

[0025] A slot is provided at a position of the column 1 corresponding to the eccentric stop plate 4 so that one end of the eccentric stop plate 4 can extend out of the slot.

[0026] The working principle of the stop mechanism is as follows:

[0027] The eccentric stop plate 4 can deflect toward the side of the column 1 where the slot is provided under the action of its own gravity, so that one end of the eccentric stop plate 4 extends out of the slot, thereby preventing the sliding sleeve 2 from moving downward.

[0028] When the sliding sleeve 2 moves upward, the sliding sleeve 2 can push the eccentric stop plate 4 in contact with the upper end of the sliding sleeve 2 to deflect upward, so that the eccentric stop plate 4 is retracted into the slot without affecting the upward movement of the sliding sleeve 2.

[0029] When the sliding sleeve 2 moves up to the right position, the sliding sleeve 2 will fall on the eccentric stop plate 4 closest to the bottom thereof, thereby being locked and effectively preventing the sliding sleeve 2 from falling.

[0030] When the sliding sleeve 2 needs to move downward, the sliding sleeve 2 is first moved upward for a distance, so that the eccentric stop plate 4 below the sliding sleeve 2 can be deflected upward and retracted into the slot of the column 1, thereby controlling the sliding sleeve 2 to move downward.

[0031] Embodiment 2:

[0032] In actual use, it is found that although the structure of Example 1 can achieve a good anti-falling effect, when the sliding sleeve 2 needs to move downward, the eccentric stopper plates 4 need to be unlocked manually one by one, which is cumbersome and inconvenient to use. In order to solve this technical problem, this embodiment is further improved.

[0033] In conjunction with Figures 1 and 2, an anti-falling guide device, based on Example 1, further includes an unlocking mechanism. The structure of the unlocking mechanism is as follows:

[0034] The slide bar 5 is vertically slidably disposed in the cavity of the column 1 .

[0035] A mixing shaft 6 is provided at a position of the sliding rod 5 corresponding to the eccentric stop plate 4 .

[0036] When unlocking is required, by pushing the slide bar 5, the slide bar 5 drives the mixing shaft 6, and the mixing shaft 6 pushes the eccentric stop plate 4 to retract into the slot of the column 1, so that all the stop mechanisms in the cavity of the column 1 can be unlocked.

[0037] It should be noted that:

[0038] If the mixing shaft 6 is arranged at the bottom of the eccentric stop plate 4, the sliding rod 5 needs to be controlled to move upward when unlocking.

[0039] If the mixing shaft 6 is arranged on the top of the eccentric stop plate 4, the sliding rod 5 needs to be controlled to move downward when unlocking.

[0040] In order to realize automatic control, the unlocking mechanism further comprises a telescopic cylinder 7 for driving the slide bar 5 to move up and down. There are two ways to set the telescopic cylinder 7:

[0041] The first setting method:

[0042] The telescopic cylinder 7 is arranged in the cavity of the column 1 , and the telescopic end of the telescopic cylinder 7 is correspondingly connected to the sliding rod 5 .

[0043] The slide bar 5 is driven to move up and down by the telescopic cylinder 7.

[0044] This structure has no requirements on the setting position of the mixing shaft 6 , but the telescopic cylinder 7 located at the bottom of the cavity of the column 1 will occupy a certain space, resulting in that a stop mechanism cannot be set at the bottom of the column 1 .

[0045] The second setting method:

[0046] The telescopic cylinder 7 is arranged at one side of the bottom of the column 1 , the telescopic end of the telescopic cylinder 7 movably penetrates the side wall of the column 1 , and the bottom of the slide rod 5 is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder 7 .

[0047] When the telescopic end of the telescopic cylinder 7 is extended, it can push the slide bar 5 upward to achieve the unlocking function.

[0048] The telescopic cylinder 7 of this structure can be arranged horizontally, so as not to occupy much space in the cavity of the column 1, and the sliding sleeve 2 can be limited to a lower height.

[0049] It should be noted that in the second structure, the telescopic cylinder 7 can only push the slide rod 5 upward, so the mixing shaft 6 needs to be arranged at the bottom of the eccentric stop plate 4, otherwise the unlocking function cannot be achieved.

[0050] Embodiment 3:

[0051] Combined with Figures 1-2, a fall prevention guide device, based on embodiment 1 or 2, is further optimized.

[0052] Torsion spring settings:

[0053] The body of the hinge shaft 3 is sleeved with a torsion spring (not shown in the figure) for making one end of the eccentric stop plate 4 extend out of the slot of the column 1.

[0054] The eccentric stop plate 4 can be kept in a locked state under the action of the torsion spring, thereby effectively improving the reliability of the stop mechanism.

[0055] Structural optimization of the eccentric stop plate 4:

[0056] The end of the eccentric stop plate 4 extending out of the slot of the column 1 is in a triangular structure.

[0057] When unlocking, the eccentric stop plate 4 only needs a small deflection angle to be retracted into the slot of the column 1, preventing the eccentric stop plate 4 from being over-deflected and unable to automatically deflect and extend, thereby achieving the locking function.

[0058] Setting of limit column 8:

[0059] A limiting column 8 is provided above the hinge shaft 3 in the cavity of the column 1 to limit the deflection angle of the eccentric stop plate 4 when it is unlocked.

[0060] The limiting column 8 can further prevent the eccentric stop plate 4 from excessive deflection, thereby further improving the reliability of the stop mechanism.

[0061] Through the above improvements, the anti-falling guide device of this embodiment can not only effectively prevent the sliding sleeve 2 from accidentally moving downward, but also realize a convenient unlocking operation, thereby improving the practicality and safety of the device.

[0062] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A fall prevention guide device, characterized in that: Include: A column (1) is arranged vertically and has a cavity inside for accommodating a stop mechanism; A sliding sleeve (2) is arranged on the column body of the column (1) and can slide up and down along the column (1); A stop mechanism, wherein a plurality of stop mechanisms are arranged at intervals in the cavity of the column (1); The stop mechanism comprises: An articulated shaft (3) is articulated with the column (1); An eccentric stop plate (4) is hinged to the column (1) via a hinge shaft (3) and is used to prevent the sliding sleeve (2) from falling; A slot is provided at a position of the column (1) corresponding to the eccentric stop plate (4), so that one end of the eccentric stop plate (4) protrudes.

2. The anti-falling guide device according to claim 1, characterized in that: It also includes an unlocking mechanism; The unlocking mechanism comprises: A sliding rod (5) is vertically slidably disposed in the cavity of the column (1); The mixing shaft (6) is arranged at a position of the sliding rod (5) corresponding to the eccentric stop plate (4) and is used to push the eccentric stop plate (4) to deflect, thereby realizing an unlocking function.

3. The anti-falling guide device according to claim 2, characterized in that: The unlocking mechanism also includes: A telescopic cylinder (7) for driving the slide bar (5) to move up and down; The telescopic cylinder (7) is arranged in the cavity of the column (1), and the telescopic end of the telescopic cylinder (7) is correspondingly connected to the sliding rod (5); Or the telescopic cylinder (7) is arranged on one side of the bottom of the column (1), the telescopic end of the telescopic cylinder (7) movably penetrates the side wall of the column (1), and the bottom of the slide rod (5) is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder (7).

4. The anti-falling guide device according to claim 1, characterized in that: The body of the hinge shaft (3) is sleeved with a torsion spring used to enable one end of the eccentric stop plate (4) to extend out of the slot of the column (1).

5. The anti-falling guide device according to claim 1, characterized in that: The end of the eccentric stop plate (4) extending out of the slot of the column (1) is in a triangular structure.

6. The anti-falling guide device according to claim 1, characterized in that: A limiting column (8) for limiting the deflection angle of the eccentric stop plate (4) when unlocking is provided above the hinge shaft (3) in the cavity of the column (1).

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