Anti-falling mechanism for lifting platform

Abstract

The anti-falling mechanism for the lifting platform comprises the lifting platform and a switch door arranged on the lifting platform, a lifting sleeve is arranged at the lower end of the lifting platform, the anti-falling mechanism further comprises a locking rod arranged on the ground, and a lock catch matched with the locking rod is arranged at the lower end of the lifting sleeve. When the rotating shaft for opening and closing the door rotates, the lifting sleeve ascends and descends under the action of the linkage mechanism. After the lifting platform moves in place, the position of the lifting sleeve corresponds to the position of the locking rod, when the opening and closing door is opened, the rotating shaft of the opening and closing door rotates under the action of the linkage mechanism, the lifting sleeve descends, the locking rod is locked through the lock catch, and therefore the position of the lifting platform is fixed. When the lifting platform moves, the lock catch is opened, the switch door is closed, the lifting sleeve ascends under the action of the linkage mechanism, the lock catch is separated from the locking rod, and the lifting platform can be moved. And the vehicle is prevented from being started when the door is not closed or closed, and the safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to an anti-falling mechanism for lifting platforms. Background Art

[0002] Lifting platform is a multifunctional lifting and loading and unloading mechanical equipment. Lifting platforms can be divided into fixed and mobile, rail-type, and articulated arm types. They can be used for high-altitude operations and maintenance in factories, automatic warehouses, parking lots, municipal administration, docks, construction, decoration, logistics, electricity, transportation, petroleum, chemical industry, gymnasiums, industrial and mining industries, and enterprises. Lifting platforms are also needed in tunnels to carry out construction on the top of the tunnel.

[0003] However, if the traditional mobile lifting platform is started with the vehicle door not closed or not closed properly, there is a safety hazard that people or goods may slide through the door that is not closed properly. Whether at a low place or a high place, an open door when starting the vehicle may cause injuries to people or goods, or even cause a fall accident. Falling objects may cause people on the ground to be hit and injured, which poses a potential risk of injury, especially when the vehicle is lifted from a high place. Utility Model Content

[0004] The utility model aims to solve the above problems and provide an anti-falling mechanism for a lifting platform to prevent a vehicle from starting when the door is not properly closed or is not closed, thereby improving safety.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A fall prevention mechanism for a lifting platform comprises a lifting platform and a switch door arranged on the lifting platform, a lifting sleeve is arranged at the lower end of the lifting platform, and also comprises a locking rod arranged on the ground, a lock buckle cooperating with the locking rod is arranged at the lower end of the lifting sleeve, and the lifting sleeve is lifted and lowered under the action of the linkage mechanism when the rotating shaft of the switch door rotates.

[0007] Furthermore, a guide sleeve is provided on the outer cylindrical surface of the lifting sleeve, and a first guide rod cooperating with the guide sleeve is provided at the lower end of the lifting platform.

[0008] Furthermore, the lock includes a side plate symmetrically arranged at the lower end of the lifting sleeve and a rotating plate arranged at the lower end of the side plate. The middle position of the rotating plate is rotatably connected to the lower end of the outer side plate, and the lower end of the inner side plate is provided with a locking buckle that cooperates with the inner side of the rotating plate.

[0009] Furthermore, a tension spring is provided between an outer end of the rotating plate and the outer side plate.

[0010] Furthermore, the linkage mechanism includes a guide hole arranged on the lifting sleeve and a second guide rod arranged at the lower end of the door opening and closing shaft, the second guide rod cooperates with the guide hole, and the guide hole is inclined upward from the inside to the outside.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model includes a lifting platform and a switch door arranged on the lifting platform. A lifting sleeve is provided at the lower end of the lifting platform, and also includes a locking rod arranged on the ground. A lock buckle cooperating with the locking rod is provided at the lower end of the lifting sleeve. When the rotating shaft of the switch door rotates, the lifting sleeve rises and falls under the action of the linkage mechanism. When the lifting platform moves into place, the position of the lifting sleeve corresponds to the position of the locking rod. When the switch door is opened, the rotating shaft of the switch door rotates under the action of the linkage mechanism, the lifting sleeve descends, and the lock buckle locks the locking rod, thereby fixing the position of the lifting platform. When the lifting platform moves, the lock buckle is opened, the switch door is closed, the lifting sleeve rises under the action of the linkage mechanism, the lock buckle is separated from the locking rod, and the lifting platform can be moved. It prevents the vehicle from starting when the door is not closed or not closed, and has good safety.

[0013] 2. The linkage mechanism in the utility model includes a guide hole arranged on the lifting sleeve and a second guide rod arranged at the lower end of the door opening and closing shaft. The second guide rod cooperates with the guide hole, and the guide hole is inclined upward from the inside to the outside. When the door is opened and the shaft rotates accordingly, the lifting sleeve descends under the action of the second guide rod and the guide hole, and the door opening and closing switch and the lifting sleeve are linked by a mechanical mechanism. The structure is simple, the cost is low, and the mechanical linkage has good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 It is the left view of the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0019] In the figure: lifting platform 1, switch door 2, lifting sleeve 3, locking rod 4, guide sleeve 5, first guide rod 6, side plate 7, rotating plate 8, locking buckle 9, tension spring 10, guide hole 11, second guide rod 12. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 3 As shown, a fall prevention mechanism for a lifting platform includes a lifting platform 1 and a switch door 2 arranged on the lifting platform 1. The lifting platform 1 is provided with a lifting sleeve 3 at the lower end, and also includes a locking rod 4 arranged on the ground. The lifting sleeve 3 is provided with a lock buckle matched with the locking rod 4 at the lower end. When the rotating shaft of the switch door 2 rotates, the lifting sleeve 3 is lifted and lowered under the action of the linkage mechanism. When the lifting platform 1 moves into place, the position of the lifting sleeve 3 corresponds to the position of the locking rod 4. When the switch door 2 is opened, the rotating shaft of the switch door 2 rotates under the action of the linkage mechanism, the lifting sleeve 3 descends, and the lock buckle locks the locking rod 4, thereby fixing the position of the lifting platform 1. When the lifting platform 1 moves, the lock buckle is opened, the switch door 2 is closed, the lifting sleeve 3 rises under the action of the linkage mechanism, the lock buckle is separated from the locking rod 4, and the lifting platform 1 can be moved. It prevents the vehicle from starting when the door is not closed or not closed, and has good safety.

[0022] like Figure 2 As shown, a guide sleeve 5 is provided on the outer cylindrical surface of the lifting sleeve 3, and a first guide rod 6 cooperating with the guide sleeve 5 is provided at the lower end of the lifting platform 1. The lifting and lowering guidance of the lifting sleeve 3 is achieved through the cooperation between the guide sleeve 5 and the first guide rod 6.

[0023] like Figure 4 As shown, the lock buckle includes a side plate 7 symmetrically arranged at the lower end of the lifting sleeve 3, a rotating plate 8 arranged at the lower end of the side plate 7, the middle position of the rotating plate 8 is rotatably connected with the lower end of the outer side plate 7, and the lower end of the inner side plate 7 is provided with a locking buckle 9 that cooperates with the inner side of the rotating plate 8. When the lifting sleeve 3 descends, the rotating plate 8 contacts the locking rod 4, and the rotating plate 8 rotates to overcome the elastic force of the tension spring 10, and the locking rod 4 enters between the two side plates, thereby realizing the locking operation. When the rotating plate 8 is stepped on, the rotating plate 8 rotates upward, the lifting sleeve 3 moves upward, and the lock buckle is separated from the locking rod 4.

[0024] like Figure 4 As shown, a tension spring 10 is provided between the outer end of the rotating plate 8 and the outer side plate 7 .

[0025] like Figure 4 As shown, the linkage mechanism includes a guide hole 11 provided on the lifting sleeve 3 and a second guide rod 12 provided at the lower end of the rotating shaft of the switch door 2. The second guide rod 12 cooperates with the guide hole 11, and the guide hole 11 is inclined upward from the inside to the outside. When the switch door 2 is opened and the rotating shaft rotates accordingly, the lifting sleeve 3 descends under the action of the second guide rod 12 and the guide hole 11, and the opening and closing of the switch door 2 and the lifting and lowering linkage of the lifting sleeve 3 are realized through a mechanical mechanism. The structure is simple, the cost is low, and the mechanical linkage has good reliability.

[0026] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A fall prevention mechanism for a lifting platform, comprising a lifting platform (1) and a switch door (2) arranged on the lifting platform (1), characterized in that: The lower end of the lifting platform (1) is provided with a lifting sleeve (3), and also includes a locking rod (4) arranged on the ground. The lower end of the lifting sleeve (3) is provided with a lock buckle that cooperates with the locking rod (4). When the rotating shaft of the opening and closing door (2) rotates, the lifting sleeve (3) is lifted and lowered under the action of the linkage mechanism.

2. The anti-falling mechanism for a lifting platform according to claim 1, characterized in that: A guide sleeve (5) is provided on the outer cylindrical surface of the lifting sleeve (3), and a first guide rod (6) cooperating with the guide sleeve (5) is provided at the lower end of the lifting platform (1).

3. The anti-falling mechanism for a lifting platform according to claim 1, characterized in that: The lock buckle comprises a side plate (7) symmetrically arranged at the lower end of the lifting sleeve (3), and a rotating plate (8) arranged at the lower end of the side plate (7); the middle position of the rotating plate (8) is rotatably connected to the lower end of the outer side plate (7); and the lower end of the inner side plate (7) is provided with a locking buckle (9) that cooperates with the inner side of the rotating plate (8).

4. The anti-falling mechanism for a lifting platform according to claim 3, characterized in that: A tension spring (10) is provided between an outer end of the rotating plate (8) and the outer side plate (7).

5. The anti-falling mechanism for a lifting platform according to claim 1, characterized in that: The linkage mechanism comprises a guide hole (11) arranged on the lifting sleeve (3), and a second guide rod (12) arranged at the lower end of the rotating shaft of the switch door (2); the second guide rod (12) cooperates with the guide hole (11), and the guide hole (11) is inclined upward from the inside to the outside.

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