Safety buffer for preventing door body from derailing

Abstract

The utility model discloses a safety buffer for preventing a door body from derailing. The safety buffer comprises a positioning structure, the outer wall of the moving structure is in sliding connection with the inner wall of the positioning structure; the anti-derailment buffering device relates to the technical field of anti-derailment buffering, through the moving structure, when the door body normally slides, the pulley is always attached to the sliding rail through the torsion of the torsion spring, it is ensured that the moving structure can stably move along the positioning structure, and therefore the sliding rail can stably move along the sliding rail. When the door body is rushed up accidentally, the ascending speed of the door body is reduced through the contact of the sliding plate and the limiting plate and the damping effect of the damping rod in sequence, if ascending continues, the moving box collides with the baffle, and the buffering column conducts secondary buffering, so that the impact force of the door body is reduced, and the door body is effectively prevented from derailing; the extension spring can automatically contract to enable the sliding plate to slide upwards along the sliding rod to reset.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-derailment buffers, in particular to a safety buffer for preventing door derailment. Background Art

[0002] With the widespread application of door bodies in various places, the safety performance of door bodies has attracted more and more attention. In daily life and work, door derailment accidents occur from time to time, posing a serious threat to people's lives and property. Traditional door bodies often lack effective safety protection measures during use. When the door body is impacted by external force, improper operation or mechanical failure, it is easy to derail. Once the door body derails, it may cause damage to the door body, personal injury, and even cause more serious safety accidents. For example, in some industrial sites, large door bodies are heavy. In order to open the door quickly, the power will be increased, which may cause a faster running speed. Once derailed, the impact force is huge, which may cause serious damage to surrounding equipment and personnel. In commercial places, door derailment may also bring many inconveniences and safety hazards to people's lives and operations. Utility Model Content

[0003] The cam is fixedly mounted on the support frame, and the cam is installed in a forward direction and is in a forward direction of the cam, and the cam is connected with the door frame to prevent the door frame from derailing.

[0004] Preferably, the outer wall of the torsion spring away from the rotating rod is fixedly connected to the inner wall of the positioning frame, and the pulley on the rotating rod is always stretched outward by the torsion force of the torsion spring, the outer wall of the tension spring away from the slide plate is fixedly connected to the outer wall of the support plate, the inner wall of the slide plate is fixedly connected to the outer wall of the damping rod, the inner wall of the movable groove is slidably connected to the outer wall of the slide plate, and the outer wall of the slide rod away from the support plate is fixedly connected to the inner wall of the bottom of the movable box, and the outer wall of the support plate is fixedly connected to the inner wall of the movable box. When the slide plate is subjected to force to slide downward along the movable groove, the tension spring fixedly connected to the support plate is stretched and stored. When the slide plate is not acted upon by external force, the tension spring contracts to cause the slide plate to slide upward along the slide rod to reset.

[0005] Preferably, the positioning structure includes a support rod, the outer wall of the support rod is provided with a slide groove, the inner wall of the slide groove is symmetrically provided with a slide rail, the inner wall of the top of the support rod is symmetrically fixedly connected with a buffer column, the outer wall of the buffer column is fixedly connected with a baffle, and the inner wall of the slide groove is fixedly connected with a limiting plate.

[0006] Preferably, the outer wall of the baffle is slidably connected to the inner wall of the slide groove, and slides along the slide groove when the baffle is impacted or squeezed, and the buffer column plays a buffering role.

[0007] Preferably, the outer wall of the pulley is slidably connected to the inner wall of the slide rail, and the pulley is always stretched outward and fit into the slide rail through a torsion spring. The outer wall of the moving box is slidably connected to the inner wall of the slide groove, and the outer wall of the top of the moving box contacts the outer wall of the bottom of the baffle, and the outer wall of the slide plate contacts the outer wall of the limit plate. When an accident occurs and the door structure is retracted upward, to prevent the door body from accidentally rushing out of the track, the slide plate first contacts the limit plate, and the rising speed of the door structure is reduced by the damping rod. Then, when the moving box collides with the extrusion baffle, the buffer column plays a secondary buffering role.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The utility model sets a moving structure, and when the door body slides normally, the torsion force of the torsion spring is used to make the pulley always fit with the slide rail, ensuring that the moving structure can move stably along the positioning structure, providing reliable guarantee for the normal operation of the door body. When the door body accidentally rushes up, the contact between the slide plate and the limit plate is carried out with the help of the damping effect of the damping rod to reduce the rising speed of the door body. If the rising continues, the moving box hits the baffle, and the buffer column performs secondary buffering, which reduces the impact force of the door body and effectively prevents the door body from derailing, avoiding safety accidents that may be caused by door derailment, and providing a safe use environment for users. When the door structure returns to normal, the tension spring can automatically contract to make the slide plate slide upward along the slide rod to reset, without manual intervention. The reset function not only improves the convenience of use of the buffer, but also ensures that the buffer can be ready to deal with the next possible unexpected situation at any time, ensuring its long-term and stable function. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the main view of the utility model;

[0011] Figure 2 It is a cross-sectional view of the utility model;

[0012] Figure 3 This utility model Figure 2 Schematic diagram of the structure at A;

[0013] Figure 4 It is a structural diagram of the positioning structure of the utility model;

[0014] Figure 5 It is a structural diagram of the mobile structure of the utility model;

[0015] Figure 6 It is a structural diagram of the mobile box of the utility model;

[0016] Figure 7 It is a structural schematic diagram of the support plate of the utility model.

[0017] In the figure: 1. Positioning structure; 11. Support rod; 12. Slide groove; 13. Slide rail; 14. Buffer column; 15. Baffle; 16. Limit plate; 2. Moving structure; 21. Moving box; 211. Mounting frame; 22. Moving groove; 23. Damping rod; 24. Support plate; 25. Slide rod; 26. Slide plate; 27. Tension spring; 28. Positioning frame; 281. Positioning rod; 29. Rotating rod; 291. Pulley; 292. Torsion spring. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0019] Example:

[0020] See also Figure 1 - Figure 7 The utility model provides a technical solution: a safety buffer for preventing door derailment, comprising: a positioning structure 1; a moving structure 2, the outer wall of the moving structure 2 is slidably connected to the inner wall of the positioning structure 1; the moving structure 2 comprises a moving box 21, the outer wall of the moving box 21 is fixedly connected to a mounting bracket 211, the mounting bracket 211 is used to be installed and connected with the door structure, the outer wall of the moving box 21 away from the mounting bracket 211 is provided with a moving groove 22, the inner wall of the top of the moving box 21 is fixedly connected to a damping rod 23, the damping rod 23 The outer wall of the mobile box 21 is fixedly connected to the support plate 24, the outer wall of the support plate 24 is fixedly connected to the slide rod 25, the outer wall of the slide rod 25 is slidably connected to the slide plate 26, the outer wall of the slide plate 26 is fixedly connected to the tension spring 27, the outer wall of the bottom of the mobile box 21 is fixedly connected to the positioning frame 28, the inner wall of the positioning frame 28 is fixedly connected to the positioning rod 281, the outer wall of the positioning rod 281 is rotatably connected to the rotating rod 29, the outer wall of the rotating rod 29 is symmetrically rotatably connected to the pulley 291, and the outer wall of the rotating rod 29 is symmetrically fixedly connected to the torsion spring 292.

[0021] The outer wall of the torsion spring 292 away from the rotating rod 29 is fixedly connected to the inner wall of the positioning frame 28. The torsion force of the torsion spring 292 is used to keep the pulley 291 on the rotating rod 29 always stretched outward, and the outer wall of the tension spring 27 away from the slide 26 is fixedly connected to the outer wall of the support plate 24. The inner wall of the slide 26 is fixedly connected to the outer wall of the damping rod 23. The inner wall of the moving groove 22 is slidably connected to the outer wall of the slide 26. The outer wall of the slide bar 25 away from the support plate 24 is fixedly connected to the inner wall of the bottom of the moving box 21. The outer wall of the support plate 24 is fixedly connected to the inner wall of the moving box 21. When the slide 26 is subjected to force to slide downward along the moving groove 22, the tension spring 27 fixedly connected to the support plate 24 is stretched and stored. When the slide 26 is not acted upon by external force, the tension spring 27 contracts to cause the slide 26 to slide upward along the slide bar 25 and reset.

[0022] The positioning structure 1 includes a support rod 11, the outer wall of the support rod 11 is provided with a slide groove 12, the inner wall of the slide groove 12 is symmetrically provided with a slide rail 13, the inner wall of the top of the support rod 11 is symmetrically fixedly connected with a buffer column 14, the outer wall of the buffer column 14 is fixedly connected with a baffle 15, and the inner wall of the slide groove 12 is fixedly connected with a limiting plate 16.

[0023] The outer wall of the baffle 15 is slidably connected to the inner wall of the slide groove 12. When the baffle 15 is impacted or squeezed, it slides along the slide groove 12, and the buffer column 14 plays a buffering role.

[0024] The outer wall of the pulley 291 is slidably connected to the inner wall of the slide rail 13, and the pulley 291 is always stretched outward and fits into the slide rail 13 through the torsion spring 292. The outer wall of the moving box 21 is slidably connected to the inner wall of the slide groove 12. The outer wall of the top of the moving box 21 contacts the outer wall of the bottom of the baffle 15, and the outer wall of the slide plate 26 contacts the outer wall of the limit plate 16. When an accident occurs and the door structure is folded upward, to prevent the door body from accidentally rushing out of the track, the slide plate 26 first contacts the limit plate 16, and the damping rod 23 is used to reduce the rising speed of the door structure. Then, when the moving box 21 hits and squeezes the baffle 15, the buffer column 14 plays a secondary buffering role.

[0025] Working principle: When there is no accident such as derailment of the door body, the movable structure 2 is installed and connected to the door body structure through the mounting frame 211, and then the pulley 291 on the rotating rod 29 in the positioning frame 28 is always stretched outward along the positioning rod 281 under the torsion of the torsion spring 292, so that the pulley 291 slides in contact with the inner wall of the slide rail 13 on the support rod 11, ensuring that the movable structure 2 of the door body can move stably along the positioning structure 1 during normal sliding, the outer wall of the slide plate 26 does not contact the outer wall of the limit plate 16, and the tension spring 27 is in a natural state.

[0026] When an accident occurs and the door structure is being retracted upward, if the door rises too fast, first, the slide plate 26 will contact the limit plate 16. At this time, due to the impact of the door rising, the slide plate 26 is forced to slide downward along the moving groove 22. In this process, on the one hand, the tension spring 27 fixedly connected to the support plate 24 is stretched and stored. On the other hand, the inner wall of the slide plate 26 is fixedly connected to the outer wall of the damping rod 23, and the damping rod 23 reduces the rising speed of the door structure, which plays a preliminary buffering role. If the door structure continues to rise, the moving box 21 continues to rise and will hit the extrusion baffle 15. When the baffle 15 is hit and squeezed, it slides along the slide groove 12. At the same time, the buffer column 14 plays a secondary buffering role, further slowing down the accidental impact of the door body and preventing the door body from derailing and causing danger. When the door structure returns to normal, the tension spring 27 contracts to make the slide plate 26 slide upward along the slide rod 25 to reset.

[0027] Obviously, the embodiments described are only some 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 and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A safety buffer for preventing door derailment, characterized in that: include: Positioning structure (1); A movable structure (2), wherein the outer wall of the movable structure (2) is slidably connected to the inner wall of the positioning structure (1); The movable structure (2) comprises a movable box (21), the outer wall of the movable box (21) is fixedly connected to a mounting frame (211), a movable groove (22) is provided on the outer wall of the movable box (21) away from the mounting frame (211), a damping rod (23) is fixedly connected to the inner wall of the top of the movable box (21), the outer wall of the damping rod (23) is fixedly connected to a support plate (24), the outer wall of the support plate (24) is fixedly connected to a sliding rod (25), and the outer wall of the sliding rod (25) is fixedly connected to the outer wall of the sliding rod (25). The movable box (21) is movably connected to a slide plate (26), the outer wall of the slide plate (26) is fixedly connected to a tension spring (27), the outer wall of the bottom of the movable box (21) is fixedly connected to a positioning frame (28), the inner wall of the positioning frame (28) is fixedly connected to a positioning rod (281), the outer wall of the positioning rod (281) is rotatably connected to a rotating rod (29), the outer wall of the rotating rod (29) is symmetrically rotatably connected to a pulley (291), and the outer wall of the rotating rod (29) is symmetrically fixedly connected to a torsion spring (292).

2. A safety buffer for preventing door derailment according to claim 1, characterized in that: The outer wall of the torsion spring (292) away from the rotating rod (29) is fixedly connected to the inner wall of the positioning frame (28), the outer wall of the tension spring (27) away from the slide plate (26) is fixedly connected to the outer wall of the support plate (24), the inner wall of the slide plate (26) is fixedly connected to the outer wall of the damping rod (23), the inner wall of the movable groove (22) is slidably connected to the outer wall of the slide plate (26), the outer wall of the slide bar (25) away from the support plate (24) is fixedly connected to the inner wall of the bottom of the movable box (21), and the outer wall of the support plate (24) is fixedly connected to the inner wall of the movable box (21).

3. The safety buffer for preventing door derailment according to claim 1, characterized in that: The positioning structure (1) comprises a support rod (11), the outer wall of the support rod (11) is provided with a slide groove (12), the inner wall of the slide groove (12) is symmetrically provided with a slide rail (13), the inner wall of the top of the support rod (11) is symmetrically fixedly connected with a buffer column (14), the outer wall of the buffer column (14) is fixedly connected with a baffle (15), and the inner wall of the slide groove (12) is fixedly connected with a limit plate (16).

4. The safety buffer for preventing door derailment according to claim 3, characterized in that: The outer wall of the baffle (15) is slidably connected to the inner wall of the chute (12).

5. The safety buffer for preventing door derailment according to claim 1, characterized in that: The outer wall of the pulley (291) is slidably connected to the inner wall of the slide rail (13), the outer wall of the moving box (21) is slidably connected to the inner wall of the slide groove (12), the outer wall of the top of the moving box (21) is in contact with the outer wall of the bottom of the baffle (15), and the outer wall of the slide plate (26) is in contact with the outer wall of the limit plate (16).

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