Anti-falling platform turnover door

Abstract

The utility model relates to the technical field of platform turnover doors, and discloses an anti-falling platform turnover door which comprises a door frame, a rotating mechanism, a door frame, an upper door body, a lower door body, a pushing air cylinder, a limiting column, a lifting mechanism, a limiting block and a column hole. By adopting the structure, the limiting block is arranged on the platform, and the limiting column is arranged on the lower side of the lower door body, so that the limiting column is inserted into the column hole of the limiting block, the lower end of the lower door body is fixed, the limiting block is driven by the lifting mechanism to move upwards, and the lower end of the lower door body can be supported to a certain extent; the structure is more stable; and meanwhile, the upper door body and the lower door body are arranged, the lower door body can slide up and down on the upper door body by pushing the air cylinder, so that the length of the door body can be greatly reduced, and the occupied space can be reduced when the rotating mechanism drives the upper door body and the lower door body to rotate.

Description

Technical Field

[0001] This utility model relates to the field of platform flip-top door technology, specifically a platform flip-top door designed to prevent falling off. Background Technology

[0002] In many industrial production settings and public facilities, platforms are often set up for personnel operations, equipment placement, or goods transfer. To ensure the safety of the platform edges and prevent accidental falls of personnel or goods, safety doors are usually installed at the platform edges. However, traditional platform tilting doors, due to frequent tilting operations and the influence of external environmental factors (such as vibration and wind), pose a risk of the door accidentally falling due to loosening of the connection between the door and the platform. This risk not only poses a serious safety threat to personnel and equipment below but may also lead to production interruptions and economic losses. Utility Model Content

[0003] The present invention provides a platform flip door that prevents the door from falling, which solves the problem that traditional platform flip doors may experience loosening of the connection between the door and the platform during long-term use, leading to the risk of the door falling accidentally.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A fall-prevention platform tilting door includes a door frame mounted on a platform and a rotating mechanism mounted on the door frame. A door frame is mounted on the rotating mechanism and rotates up and down via the rotating mechanism. An upper door body is detachably connected to the door frame, and a lower door body is slidably mounted on the upper door body. A push cylinder is mounted on the upper door body, and the output end of the push cylinder is located on the lower door body. The lower door body slides on the upper door body via the push cylinder. A limit post is provided at the outer end of the lower door body. A lifting mechanism is mounted on the platform, and a limit block is provided on the lifting mechanism. The limit block has a post hole for the limit post to be inserted. A protective railing is provided on the platform to cooperate with the door frame, thereby preventing people from falling. In use, after personnel enter the platform, the rotating mechanism drives the upper and lower door panels to flip downwards. Then, a push cylinder drives the lower door panel to slide downwards to a preset position. A lifting mechanism then drives the limit block upwards, inserting the limit post into the post hole of the limit block, thus fixing the lower end of the lower door panel. Conversely, the lifting mechanism drives the limit block downwards, the push cylinder drives the lower door panel to retract up and down, and the rotating mechanism resets the upper door panel. Using the structure of this application, by setting a limit block on the upper part of the platform and a limit post on the lower side of the lower door panel, the limit post is inserted into the post hole of the limit block, thus fixing the lower end of the lower door panel. The lifting mechanism also drives the limit block upwards, providing support for the lower end of the lower door panel and making the structure more stable. Furthermore, the use of upper and lower door panels allows the lower door panel to slide up and down on the upper door panel via a push cylinder, significantly reducing the length of the door panel and minimizing the space occupied when the rotating mechanism drives the upper and lower door panels to rotate.

[0006] Furthermore, the rotating mechanism includes a rotating shaft horizontally rotatably connected to the door frame, and a first electric motor mounted on the door frame to drive the rotating shaft to rotate. The door frame is fixedly connected to the rotating shaft and rotates along with the rotating shaft. This structure allows the first electric motor to drive the rotating shaft to rotate, thereby causing the door frame and upper door body to flip. It is simple in structure and easy to use.

[0007] Furthermore, the gantry includes a frame mounted on the rotating shaft and multiple studs mounted on the frame. The upper gantry has a through hole through which the studs pass, and a limit nut is threaded onto the stud after it passes through the through hole. This structure allows for convenient disassembly and assembly of the upper gantry, enabling timely replacement and maintenance, and reducing risks.

[0008] Furthermore, the upper door body includes an upper connecting frame, with the through hole disposed on the upper connecting frame. Multiple sliding sleeves are disposed on the upper connecting frame, offset from the through hole, and a first retainer is disposed on each sliding sleeve. The lower door body includes a slide rod slidably disposed within the sliding sleeve, with a second retainer disposed at the lower end of the slide rod, and a limiting post disposed at the lower end of the second retainer. The pushing cylinder is disposed on the first retainer, and the output end of the pushing cylinder is fixedly connected to the second retainer. This structure enhances the overall structural stability through the first and second retainers, while also allowing the slide rod to slide within the sliding sleeve.

[0009] Furthermore, a mounting groove is provided on the platform corresponding to the position below the limiting block. A second motor is installed in the mounting groove, and a lifting screw is installed at the output end of the second motor. A threaded sleeve is threaded onto the lifting screw. Multiple lifting sleeves are installed in the mounting groove, and multiple lifting guide rods are slidably installed within the lifting sleeves. The upper end of the threaded sleeve is fixedly connected to the limiting block, and the upper end of each lifting guide rod is fixedly connected to the limiting block. With this structure, the second motor can drive the lifting screw to rotate, thereby causing the limiting block to move up and down under the limiting effect of the lifting sleeves and lifting guide rods.

[0010] Beneficial effects: By adopting the structure of this application, a limiting block is set on the platform and a limiting post is set on the lower side of the lower door body. The limiting post is inserted into the post hole of the limiting block, thereby fixing the lower end of the lower door body. The lifting mechanism drives the limiting block to move upward, thereby providing a certain support for the lower end of the lower door body and making the structure more stable. At the same time, by setting up an upper door body and a lower door body, the lower door body can slide up and down on the upper door body by pushing the cylinder, thereby greatly reducing the length of the door body. This reduces the space occupied when the rotating mechanism drives the upper and lower door bodies to rotate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the door frame from an oblique angle in this embodiment;

[0012] Figure 2 This is a front view of the door frame in this embodiment;

[0013] Figure 3 This is an example. Figure 2 Enlarged diagram of A in the middle.

[0014] Reference numerals in the attached drawings: 1. Door frame; 2. Push cylinder; 3. Limiting post; 4. Limiting block; 5. First motor; 6. Frame; 7. Stud; 8. Upper connecting frame; 9. Sliding sleeve; 10. First retainer; 11. Slide rod; 12. Second retainer; 13. Mounting groove; 14. Second motor; 15. Lifting screw; 16. Screw sleeve; 17. Lifting sleeve; 18. Lifting guide rod. Detailed Implementation

[0015] The following will provide a more detailed description of the anti-falling platform flip door technology solution of this utility model in conjunction with the embodiments.

[0016] In this description, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this context based on the specific circumstances.

[0017] like Figure 1 , Figure 2 , Figure 3As shown, this embodiment of an anti-fall platform flip door includes a door frame 1 mounted on a platform and a rotating mechanism mounted on the door frame 1. A door frame is mounted on the rotating mechanism, and the door frame rotates up and down driven by the rotating mechanism. An upper door body is detachably connected to the door frame, and a lower door body is slidably mounted on the upper door body. A push cylinder 2 is mounted on the upper door body, and the output end of the push cylinder 2 is located on the lower door body. The lower door body slides on the upper door body driven by the push cylinder 2. A limit post 3 is provided at the outer end of the lower door body. A lifting mechanism is mounted on the platform, and a limit block 4 is provided on the lifting mechanism. The limit block 4 has a post hole for the insertion of the limit post 3. The rotating mechanism includes a rotating shaft horizontally rotatably connected to the door frame 1 and a first motor 5 mounted on the door frame 1 for driving the rotating shaft to rotate. The door frame is fixedly connected to the rotating shaft and rotates along with the rotating shaft. The gantry includes a frame 6 mounted on the rotating shaft and multiple studs 7 mounted on the frame 6. The upper gantry has a through hole through which the studs 7 pass, and a limit nut is threaded onto the stud 7 after it passes through the through hole. The rotating mechanism includes a rotating shaft horizontally rotatably connected to the gantry frame and a first motor mounted on the gantry frame to drive the rotating shaft. The gantry is fixedly connected to the rotating shaft and rotates along with the rotating shaft. The gantry includes a frame mounted on the rotating shaft and multiple studs mounted on the frame. The upper gantry has a through hole through which the studs pass, and a limit nut is threaded onto the stud after it passes through the through hole. The upper door body includes an upper connecting frame 8, with a through hole disposed on the upper connecting frame 8. Multiple sliding sleeves 9 are disposed on the upper connecting frame 8, offset from the through hole. A first retainer 10 is disposed on each sliding sleeve 9. The lower door body includes a sliding rod 11 slidably disposed within the sliding sleeve 9. A second retainer 12 is disposed at the lower end of the sliding rod 11. A limiting post is disposed at the lower end of the second retainer 12. A pushing cylinder is disposed on the first retainer, and the output end of the pushing cylinder is fixedly connected to the second retainer. An installation groove 13 is provided on the platform below the limiting block. A second motor 14 is installed in the installation groove 13. A lifting screw 15 is provided at the output end of the second motor 14. A screw sleeve 16 is threadedly connected to the lifting screw 15. Multiple lifting sleeves 17 are provided in the installation groove 13. Multiple lifting guide rods 18 are slidably arranged in the lifting sleeves 17. The upper end of the screw sleeve 16 is fixedly connected to the limiting block, and the upper end of the lifting guide rod 18 is fixedly connected to the limiting block.In use, after personnel enter the platform, the rotating mechanism drives the upper and lower door panels to flip downwards. Then, the cylinder 2 pushes the lower door panel downwards to a preset position. The lifting mechanism then moves the limiting block 4 upwards, inserting the limiting post 3 into the post hole of the limiting block 4, thus fixing the lower end of the lower door panel. Conversely, the lifting mechanism lowers the limiting block 4, the cylinder 2 pushes the lower door panel to retract up and down, and the rotating mechanism resets the upper door panel. Using the structure of this application, by setting the limiting block 4 on the upper part of the platform and the limiting post 3 on the lower side of the lower door panel, the limiting post 3 is inserted into the post hole of the limiting block 4, thus fixing the lower end of the lower door panel. The lifting mechanism also moves the limiting block 4 upwards, providing support for the lower end of the lower door panel and making the structure more stable. Furthermore, the use of the upper and lower door panels allows the lower door panel to slide up and down on the upper door panel by pushing the cylinder 2, greatly reducing the length of the door panel and minimizing the space occupied when the rotating mechanism rotates the upper and lower door panels.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A platform tilting door designed to prevent falls, characterized in that: The device includes a door frame mounted on a platform and a rotating mechanism mounted on the door frame. A door frame is mounted on the rotating mechanism and rotates up and down by the rotating mechanism. An upper door body is detachably connected to the door frame. A lower door body is slidably mounted on the upper door body. A push cylinder is mounted on the upper door body, and the output end of the push cylinder is located on the lower door body. The lower door body slides on the upper door body by the push cylinder. A limit post is provided at the outer end of the lower door body. A lifting mechanism is mounted on the platform, and a limit block is provided on the lifting mechanism. The limit block has a post hole for the insertion of the limit post.

2. A fall-prevention platform turnstile according to claim 1, characterized in that: The rotating mechanism includes a rotating shaft horizontally rotatably connected to the door frame, and a first electric motor disposed on the door frame for driving the rotating shaft to rotate. The door frame is fixedly connected to the rotating shaft and rotates along with the rotating shaft.

3. A fall-prevention platform turnstile according to claim 2, characterized in that: The gantry includes a frame mounted on the rotating shaft and multiple studs mounted on the frame. The upper gantry has a through hole for the studs to pass through, and a limit nut is threadedly connected to the stud after it passes through the through hole.

4. A fall-prevention platform turnstile according to claim 3, characterized in that: The upper door body includes an upper connecting frame, with a through hole disposed on the upper connecting frame. Multiple sliding sleeves are disposed on the upper connecting frame, offset from the through hole, and a first retainer is disposed on each sliding sleeve. The lower door body includes a sliding rod slidably disposed within the sliding sleeves, with a second retainer disposed at the lower end of the sliding rod, and a limiting post disposed at the lower end of the second retainer. A pushing cylinder is disposed on the first retainer, and the output end of the pushing cylinder is fixedly connected to the second retainer.

5. A fall-prevention platform turnstile according to claim 4, characterized in that: An installation groove is provided on the platform below the limiting block. A second motor is installed in the installation groove. A lifting screw is provided at the output end of the second motor. A threaded sleeve is threaded onto the lifting screw. Multiple lifting sleeves are provided in the installation groove. Multiple lifting guide rods are slidably arranged in the lifting sleeves. The upper end of the threaded sleeve is fixedly connected to the limiting block. The upper end of the lifting guide rod is fixedly connected to the limiting block.

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