Guardrail device for aerial work platforms

Abstract

The utility model discloses a guardrail device of aerial work platform relates to guardrail field of aerial work, including guardrail, the side portion rotation of guardrail is installed with the rotation door that opens inwards, the back end one side of rotation door is integrally formed with the protruding plate that protrudes outward, the inside of guardrail is provided with the butt joint groove that carries out accommodating to protruding plate, the top of guard rail is fixedly installed with the hanging pole through two fixed bases, the hanging pole is used for with the lock catch on the anti -fall safety vest is connected, the front end of guardrail with rotation door is installed with locking mechanism, one the inside installation of hanging pole is to locking mechanism and is located the anti -loosening mechanism of preventing. The utility model discloses through setting relax mechanism, and relax mechanism opens and closes relatively convenient, and avoid the problem that locking mechanism is opened because of the mistaken touch, and cannot be mistaken touch to relax mechanism, and the safety performance has been further promoted.

Description

Technical Field

[0001] This utility model relates to the field of guardrails for high-altitude operations, specifically a guardrail device for a high-altitude work platform. Background Technology

[0002] Safety railings for working at heights are protective platforms that provide workers with a safe operating space.

[0003] When performing high-altitude operations, the position of the revolving door is generally limited by a latch. However, this method is prone to accidental activation during high-altitude operations, which can cause the revolving door to be uncontrolled. There is room for further improvement in safety performance. Utility Model Content

[0004] The purpose of this utility model is to provide a guardrail device for aerial work platforms in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guardrail device for an aerial work platform, comprising a guardrail, a rotating door that opens inwardly and is rotatably installed on the side of the guardrail, a limiting plate that protrudes outwardly and is integrally formed on one side of the back end of the rotating door, a mating groove for accommodating the limiting plate being formed on the inner side of the guardrail, a hanging rod being fixedly installed at the top of the guardrail by two fixing seats, the hanging rod being used to engage with the buckle on a fall protection safety vest, a locking mechanism being installed at the front end of the guardrail and the rotating door, and an anti-loosening mechanism for limiting the locking mechanism being installed inside one of the hanging rods.

[0006] As a further embodiment of this utility model: the locking mechanism includes a sleeve fixedly installed at the front end of the guardrail and a docking ring fixedly installed at the front end of the rotating door. A sliding rod is slidably installed on the inner wall of the sleeve. One end of the sliding rod located inside the sleeve has an integrally formed insertion rod that extends through the outside of the sleeve and is inserted into the docking ring. A groove is provided on the top of the sleeve for the vertical part of the sliding rod to slide.

[0007] As a further embodiment of this utility model: the locking mechanism further includes a guide rod fixedly installed at the other end of the sliding rod located inside the sleeve, the guide rod extending through to the outside of the sleeve, a return spring abutting between the sliding rod and one end of the inner wall of the sleeve, and a transverse groove that is opposite to the sliding rod is provided inside the hanging rod.

[0008] As a further embodiment of this utility model: the anti-loosening mechanism includes a plug-in post that is slidably installed inside the hanging rod. The plug-in post has protruding plates integrally formed on both sides below it. The hanging rod has a vertical groove for the protruding plates to slide up and down. A connecting spring is installed between the top of the protruding plate and the bottom of the vertical groove. The bottom of the plug-in post has a pressure-bearing slope integrally formed.

[0009] As a further improvement of this utility model: the top end of the crossbar portion of the sliding rod is provided with a plug hole that is opposite to the bottom end of the plug-in post, and the top end of the plug-in post is provided with a screw hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By incorporating a release mechanism, opening and closing the release mechanism becomes more convenient, and the problem of the locking mechanism being opened due to accidental activation is avoided. Furthermore, the release mechanism cannot be accidentally activated, thus further enhancing safety performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the locking mechanism of this utility model; Figure 4 This is a schematic diagram of the anti-loosening mechanism of this utility model.

[0012] In the diagram: 1. Guardrail; 2. Revolving door; 3. Fixed base; 4. Hanging rod; 5. Sleeve; 6. Sliding rod; 7. Limiting plate; 8. Connecting groove; 9. Connecting ring; 10. Slide groove; 11. Insertion rod; 12. Guide rod; 13. Return spring; 14. Insertion hole; 15. Insertion post; 16. Pressure inclined surface; 17. Vertical groove; 18. Connecting spring; 19. Screw hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4In this embodiment of the utility model, a guardrail device for an aerial work platform includes a guardrail 1. A rotating door 2 that opens inward is rotatably installed on the side of the guardrail 1. A limiting plate 7 that protrudes outward is integrally formed on one side of the back end of the rotating door 2. A docking groove 8 for accommodating the limiting plate 7 is provided on the inner side of the guardrail 1. A hanging rod 4 is fixedly installed on the top of the guardrail 1 through two fixing seats 3. The hanging rod 4 is used to engage with the buckle on the fall protection safety vest. A locking mechanism is installed at the front end of the guardrail 1 and the rotating door 2. An anti-loosening mechanism for limiting the locking mechanism is installed inside one of the hanging rods 4.

[0015] In this embodiment: When the worker enters the guardrail 1, he uses a tool to connect with the anti-loosening mechanism. After the connection is completed, he pulls the tool upward to move the anti-loosening mechanism upward, releasing the limit on the locking mechanism. Then he can pull to open the locking mechanism. After the locking mechanism is open, he can push the revolving door 2 inward, and the worker can enter the guardrail 1. After the worker enters, he plugs the locking mechanism back in and removes the force applied to the anti-loosening mechanism. At this time, the anti-loosening mechanism is reset. The locking mechanism is reset again. Then the tool is separated from the anti-loosening mechanism. In this way, the revolving door 2 can be closed, and the revolving door 2 can be prevented from being opened accidentally when the worker is working at height. After the rotating door 2 is opened, the staff can fasten the safety vest to the hanging rod 4. Furthermore, due to the design of the limiting plate 7 and the docking groove 8, the rotating door 2 can be prevented from opening outward, reducing the space occupied when the rotating door 2 is opened.

[0016] Please refer to this carefully. Figure 3 and Figure 4 The locking mechanism includes a sleeve 5 fixedly installed at the front end of the guardrail 1 and a docking ring 9 fixedly installed at the front end of the revolving door 2. A sliding rod 6 is slidably installed on the inner wall of the sleeve 5. The sliding rod 6 has an integrally formed insertion rod 11 at one end inside the sleeve 5 that extends through to the outside of the sleeve 5 and is inserted into the docking ring 9. A groove 10 is provided on the top of the sleeve 5 for the vertical part of the sliding rod 6 to slide. The locking mechanism also includes a guide rod 12 fixedly installed at the other end of the sliding rod 6 inside the sleeve 5. The guide rod 12 extends through to the outside of the sleeve 5. A return spring 13 is abutted between the sliding rod 6 and one end of the inner wall of the sleeve 5. A horizontal groove is provided inside a hanging rod 4 that is opposite to the sliding rod 6.

[0017] In this embodiment: when opening the rotating door 2, the anti-loosening mechanism is first opened upwards. After the anti-loosening mechanism is opened, the vertical part of the sliding rod 6 is pulled to slide along the inner wall of the slide groove 10. At this time, the sliding rod 6 pushes the guide rod 12 to slide and compresses the return spring 13. At the same time, the sliding rod 6 drives the plug rod 11 to separate from the docking ring 9. At this time, the rotating door 2 can be opened. After the rotating door 2 is closed, the force applied to the sliding rod 6 is removed. At this time, the return spring 13 is reset, so that the plug rod 11 can be inserted into the inner wall of the docking ring 9 again, realizing the locking function of the locking mechanism.

[0018] Please refer to this carefully. Figure 3 and Figure 4 The anti-loosening mechanism includes a plug-in post 15 that is slidably installed inside the hanging rod 4. The plug-in post 15 has protruding plates integrally formed on both sides below it. The hanging rod 4 has a vertical groove 17 for the protruding plates to slide up and down. A connecting spring 18 is installed between the top of the protruding plate and the bottom of the vertical groove 17. The bottom of the plug-in post 15 has a pressure-bearing inclined surface 16 integrally formed. The top of the horizontal bar of the sliding rod 6 has a plug-in hole 14 that is opposite to the bottom of the plug-in post 15. The top of the plug-in post 15 has a screw hole 19. The top of the plug-in post 15 in the reset state is flush with the outer periphery of the hanging rod 4.

[0019] In this embodiment: Before opening the locking mechanism, the tool with the threaded end is threadedly connected to the threaded hole 19. Then, the tool is pulled upward, which moves the plug-in post 15 upward. At this time, the connecting spring 18 is compressed, so that the bottom end of the plug-in post 15 is separated from the plug-in hole 14. At this time, the sliding rod 6 can move. After the staff enters the guardrail 1 or walks out of the guardrail 1, the locking mechanism can be closed again. When the locking mechanism is closed, the horizontal part of the sliding rod 6 is pressed against the pressure inclined surface 16, so that the pushing force pushes the plug-in post 15 upward until the plug-in post 15 is aligned with the plug-in hole 14. Then, the plug-in post 15 can be reset under the pushing force of the connecting spring 18 and locked into the plug-in hole 14 again, thus completing the limiting of the locking mechanism. Therefore, when performing high-altitude operations, separating the tool from the screw hole 19 can prevent the rotating door 2 from being accidentally opened due to accidental contact, thus further improving safety.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A guardrail device for an aerial work platform, comprising a guardrail (1), characterized in that, The side of the guardrail (1) is rotatably fitted with an inwardly opening rotating door (2). The back end of the rotating door (2) is integrally formed with an outwardly protruding limiting plate (7). The inner side of the guardrail (1) is provided with a docking groove (8) to accommodate the limiting plate (7). The top of the guardrail (1) is fixedly fitted with a hanging rod (4) by two fixing seats (3). The hanging rod (4) is used to engage with the buckle on the fall protection safety vest. The front end of the guardrail (1) and the rotating door (2) are fitted with a locking mechanism. The inside of one of the hanging rods (4) is fitted with an anti-loosening mechanism to limit the locking mechanism.

2. The guardrail device for an aerial work platform according to claim 1, characterized in that, The locking mechanism includes a sleeve (5) fixedly installed at the front end of the guardrail (1) and a docking ring (9) fixedly installed at the front end of the rotating door (2). A sliding rod (6) is slidably installed on the inner wall of the sleeve (5). One end of the sliding rod (6) is integrally formed inside the sleeve (5) and extends through to the outside of the sleeve (5) and is inserted into the docking ring (9). A groove (10) is provided on the top of the sleeve (5) for the vertical part of the sliding rod (6) to slide.

3. The guardrail device for an aerial work platform according to claim 2, characterized in that, The locking mechanism also includes a guide rod (12) fixedly installed at the other end of the sliding rod (6) inside the sleeve (5). The guide rod (12) extends through to the outside of the sleeve (5). A return spring (13) abuts against one end of the inner wall of the sliding rod (6). A transverse groove is opened inside the hanging rod (4) to connect with the sliding rod (6).

4. The guardrail device for an aerial work platform according to claim 3, characterized in that, The anti-loosening mechanism includes a plug-in post (15) that is slidably installed inside the hanging rod (4). The plug-in post (15) has protruding plates integrally formed on both sides below it. The hanging rod (4) has a vertical groove (17) for the protruding plates to slide up and down. A connecting spring (18) is installed between the top of the protruding plate and the bottom of the vertical groove (17). The bottom of the plug-in post (15) has a pressure-bearing inclined surface (16) integrally formed.

5. A guardrail device for an aerial work platform according to claim 4, characterized in that, The top of the horizontal bar of the sliding rod (6) is provided with a plug hole (14) that is opposite to the bottom of the plug post (15), and the top of the plug post (15) is provided with a screw hole (19).

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