Rail type portable anti-falling device

Abstract

The utility model relates to a rail type portable anti-falling device, and belongs to the field of overhead working trucks. The device comprises a support, a guide rail, a roller and a hanging ring, the support is fixed to the guide rail, the two sides of the guide rail are bent inwards to form a bent groove, the roller is located in the bent groove and can move in the length direction of the bent groove, the roller and the hanging ring are both installed on a roller seat, the hanging ring is installed on the roller seat through a first bolt, and the guide rail is fixed to the support through a second bolt. The two ends of the guide rail are each provided with a second bolt used for limiting movement of the idler wheel so as to prevent the idler wheel from being separated from the bending groove, the hanging ring is connected with one end of the safety belt, and the support is installed on a working arm of the overhead working truck.

Description

Technical Field

[0001] The utility model relates to an orbital portable anti - falling device, belonging to the field of aerial work platforms. Background Art

[0002] With the social demand and technological progress, the structural forms of the working platforms 12 of aerial work platforms 10 are becoming more and more diverse, including front - mounted, rear - mounted and mid - mounted types, etc. For the aerial work platform 10 with a front - mounted working platform 12, the working platform 12 is generally located above the cab. In this case, when the operator is working, he needs to walk up step by step from the boarding position, and will pass through a platform at a relatively high height on the vehicle body. According to the requirements of the GB / T 3608 "Classification of Working at Heights" standard, working at heights is defined as working on a platform greater than or equal to 2m, and it is necessary to prevent the operator from falling. For the vast majority of current aerial work platforms 10, the height of the cab has already reached more than 2m, and the devices for fixing the safety belt 7 are all designed inside the working platform 12, ignoring the falling risk during the process of entering the working platform 12. When the operator is about to enter the working platform 12, he first boards the vehicle from the rear of the aerial work platform 10, but there is still a certain distance from the working platform 12 at this time, and he will pass through a passage more than 2m above the ground during the process, posing a falling risk. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above - mentioned deficiencies existing in the prior art, and to provide an orbital portable anti - falling device with a reasonable structural design.

[0004] The orbital portable anti - falling device of the utility model is characterized in that: it includes a support, a guide rail, a roller and a hanging ring. The support is fixed to the guide rail. The two sides of the guide rail are bent inward to form a bending groove. The roller is located in the bending groove and can move along the length direction of the bending groove. Both the roller and the hanging ring are installed on the roller seat.

[0005] Further, the hanging ring is installed on the roller seat through a first bolt.

[0006] Further, a second bolt is provided at each end of the guide rail to limit the movement of the roller and prevent the roller from separating from the bending groove.

[0007] Further, the hanging ring is connected to one end of the safety belt.

[0008] Further, the support is installed on the working arm of the aerial work platform.

[0009] Compared with the prior art, the utility model has the following advantages: The rail-type portable anti-falling device is arranged on the working arm of the aerial work vehicle instead of in the work platform, which can avoid the falling risk during the process of entering the work platform. The rail-type portable anti-falling device can move along with the operator through the safety belt, avoiding the limitation of the operator's movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the front view structural schematic diagram of the rail-type portable anti-falling device of the embodiment of the utility model.

[0011] Figure 2 is the left view structural schematic diagram of the rail-type portable anti-falling device of the embodiment of the utility model.

[0012] Figure 3 is the front view structural schematic diagram of the using state of the rail-type portable anti-falling device of the embodiment of the utility model.

[0013] Figure 4 is the left view structural schematic diagram of the using state of the rail-type portable anti-falling device of the embodiment of the utility model.

[0014] In the figure: support 1, guide rail 2, roller 3, lifting ring 4, first bolt 5, second bolt 6, safety belt 7, bending groove 8, roller seat 9, aerial work vehicle 10, working arm 11, work platform 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further details the utility model with reference to the drawings through embodiments. The following embodiments are explanations of the utility model and the utility model is not limited to the following embodiments.

[0016] Embodiment

[0017] See Figures 1 to 4 As shown, it should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the utility model can be implemented. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the utility model. At the same time, if terms such as "upper", "lower", "left", "right", "middle" and "one" are cited in this specification, they are only for the convenience of clear narration and are not used to limit the scope under which the utility model can be implemented. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the scope within which the utility model can be implemented.

[0018] The orbital body-worn anti-falling device in this embodiment includes a support 1, a guide rail 2, a roller 3, and a suspension ring 4. The support 1 is installed on the working arm 11 of the aerial work platform 10. The support 1 is fixed to the guide rail 2. The two sides of the guide rail 2 are bent inward to form a bending groove 8. The roller 3 is located in the bending groove 8 and can move along the length direction of the bending groove 8.

[0019] In this embodiment, both the roller 3 and the suspension ring 4 are installed on the roller seat 9. That is to say, the suspension ring 4 is installed on the roller seat 9 through the first bolt 5. At both ends of the guide rail 2, there is a second bolt 6 for restricting the movement of the roller 3 to prevent the roller 3 from detaching from the bending groove 8 and facilitating the timely maintenance of the roller 3. One end of the suspension ring 4 is connected to one end of the safety belt 7, and the other end of the safety belt 7 is tied around the waist of the operator.

[0020] The support 1 is a single component. The quantity can be matched according to the designed protection length, and the spacing can be adjusted according to the actual situation of the installation hole positions. Therefore, it can be flexibly applied to different structures and is also more lightweight.

[0021] The groove cross-section of the guide rail 2 is bent inward to form a bending groove 8. The bending groove 8 can increase the strength of the guide rail 2 and prevent the roller 3 from moving laterally within the guide rail 2.

[0022] The roller 3 is adapted to the bending groove 8 and can roll within the guide rail 2 to follow the movement of the operator, avoiding restricting the movement range of the operator by the device.

[0023] One end of the suspension ring 4 is connected to the roller seat 9 through the first bolt 5, and the other end of the suspension ring 4 is connected to the safety belt 7 carried by the operator. The structure is simple, the generalization degree is high, and the maintenance is also convenient.

[0024] Specifically, the method for the operator to use the anti-falling device when entering the work platform is as follows: Connect the other end of the safety belt 7 worn by the operator to the suspension ring 4 of the anti-falling device. When walking, the suspension ring 4 will follow the movement of the operator. Until the operator safely reaches the work platform 12, reconnect the safety belt 7 to the hook inside the work platform; If the operator falls during walking, after the safety belt 7 is tightened, one end will pull the suspension ring 4, the roller 3 will stop moving, and the other end will pull the operator tightly to prevent falling injuries. "Body-worn" means that when the operator moves, the safety belt 7 can pull the suspension ring 4 to follow the movement of the operator.

[0025] In addition, it should be noted that for the specific embodiments described in this specification, the shapes and names of the components can be different. The above content described in this specification is only an example of the structure of the present utility model. Any equivalent changes or simple changes made according to the structure, features, and principles of the present utility model patent concept are included in the protection scope of the present utility model patent. Those skilled in the art of the present utility model can make various modifications, supplements, or use similar methods for substitution to the specific embodiments described, as long as they do not deviate from the structure of the present utility model or exceed the scope defined by this claim book, they should all belong to the protection scope of the present utility model.

Claims

1. A track-type portable fall prevention device, characterized in that: The invention comprises a support (1), a guide rail (2), a roller (3) and a lifting ring (4), wherein the support (1) is fixed to the guide rail (2), the two sides of the guide rail (2) are bent inwards to form a bending groove (8), the roller (3) is located in the bending groove (8) and can move along the length direction of the bending groove (8), and the roller (3) and the lifting ring (4) are both mounted on a roller seat (9).

2. The rail-type portable fall prevention device according to claim 1, characterized in that: The lifting ring (4) is mounted on the roller seat (9) via a first bolt (5).

3. The rail-type portable fall prevention device according to claim 1, characterized in that: A second bolt (6) is provided at each end of the guide rail (2) for limiting the movement of the roller (3) to prevent the roller (3) from being separated from the bending groove (8).

4. The rail-type portable fall prevention device according to claim 1, characterized in that: The lifting ring (4) is connected to one end of a safety belt (7).

5. The rail-type portable fall prevention device according to claim 1, characterized in that: The support (1) is mounted on a working arm (11) of an aerial work vehicle (10).

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