Protective door anti-collision assembly

Abstract

The utility model relates to the technical field of protective doors, in particular to an anti-collision assembly of a protective door, which comprises a mounting box, a first rotating shaft is rotatably connected in the mounting box, a roller is fixedly connected onto the first rotating shaft, a rope is wound on the roller, the rope is slidably connected with the mounting box, a torsional spring is wound outside the first rotating shaft, and the torsional spring is fixedly connected with the first rotating shaft. One end of the torsional spring is fixedly connected with the mounting box, the other end of the torsional spring is fixedly connected with the first rotating shaft, the end of the rope is fixedly connected with a fixing plate, the fixing plate is fixedly connected to the protective door body, and a limiting structure is mounted on the mounting box; when the protective door body rotates, the rope is driven to be stressed, then the rolling wheel and the first rotating shaft are driven to rotate, the torsional spring is compressed, the protective door body is buffered through torsion of the rope and the torsional spring, the protective door body is prevented from rapidly impacting the door frame, noise generated when the protective door body is closed is effectively reduced, and the protective door body is protected.

Description

Technical Field

[0001] The utility model relates to an anti-collision component, in particular to an anti-collision component for a protective door, and belongs to the technical field of protective doors. Background Art

[0002] Protective doors are an important safety device with various types and functions. Among them, normally closed doors are the most commonly used protective doors in daily life. In buildings, especially public places such as shopping malls, hospitals, schools, etc., normally closed doors are often used as part of fire escape routes. These doors need to be able to be opened quickly in an emergency to facilitate the evacuation of personnel and the entry of firefighters. At the same time, the normally closed state helps prevent the spread of fire. Normally closed doors are usually equipped with door closers. When the door is opened, the door closer can be compressed and released to automatically close the door, which can ensure that the door is automatically, accurately and timely closed to its initial position after being opened.

[0003] However, when the door closer drives the protective door body to close, it often causes a violent collision between the protective door body and the door frame, causing the protective door body to make a loud noise when closing, generating noise. At the same time, after long-term use, the protective door body and the door frame will be damaged, thereby shortening the service life of the protective door body. Utility Model Content

[0004] The purpose of the present utility model is to provide a protective door anti-collision component in order to solve the above-mentioned problem. When the protective door body rotates, the rope is subjected to force, which in turn drives the roller and the first rotating shaft to rotate, and the torsion spring is compressed. The torsion of the rope and the torsion spring has a buffering effect on the protective door body, preventing the protective door body from quickly colliding with the door frame, thereby effectively reducing the noise generated when the protective door body is closed and protecting the protective door body.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a protective door anti-collision component, including an installation box, an anti-collision structure installed in the installation box, the anti-collision structure including a first rotating shaft, a first rotating shaft rotatably connected in the installation box, a roller fixedly connected to the first rotating shaft, a rope wrapped around the roller, the rope is slidingly connected to the installation box, a torsion spring is wrapped around the outside of the first rotating shaft, one end of the torsion spring is fixedly connected to the installation box, the other end of the torsion spring is fixedly connected to the first rotating shaft, the end of the rope is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the protective door body, and a limiting structure is installed on the installation box.

[0006] Preferably, a connecting plate is fixedly connected to the side of the installation box facing the protective door body, two second rotating shafts are rotatably connected to the connecting plate, a guide wheel is fixedly connected between the two second rotating shafts, and the rope and the guide wheel are in conflict with each other.

[0007] Preferably, the cross-section of the roller is in an I-shaped structure, a through hole is provided on the side of the installation box facing the protective door body, and the rope passes through the through hole.

[0008] Preferably, the cross section of the roller is an I-shaped structure, and the cross section of the guide wheel is an I-shaped structure.

[0009] Preferably, a cover plate is clamped on the installation box, and three buckles are fixedly connected to both sides of the cover plate, and the buckles are in contact with the inner wall of the installation box.

[0010] Preferably, the limiting structure includes a connecting box, the top of the installation box is fixedly connected to the connecting box, the connecting box is slidably connected to an insertion rod, and a plurality of limiting holes are provided in a circular array at the top of the first rotating shaft, and the insertion rod is engaged with one of the limiting holes.

[0011] Preferably, the end of the insertion rod is rotatably connected to a pull plate, and a tension spring is fixedly connected between the pull plate and the connection box.

[0012] Preferably, a slot is provided on the pull plate, a connecting block is fixedly connected to the top of the installation box, a connecting rod is fixedly connected to the connecting block, and the slot is engaged with the connecting rod.

[0013] The beneficial effects of the present utility model are as follows: a first rotating shaft is rotatably connected in the installation box, a roller is fixedly connected to the first rotating shaft, a rope is wound around the roller, the rope is slidably connected to the installation box, a torsion spring is wound around the outside of the first rotating shaft, one end of the torsion spring is fixedly connected to the installation box, the other end of the torsion spring is fixedly connected to the first rotating shaft, the end of the rope is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the protective door body, and a limiting structure is installed on the installation box; when the protective door body rotates, the rope is driven to be subjected to force, and then the roller and the first rotating shaft are driven to rotate, and the torsion spring is compressed, and the protective door body is buffered by the torsion of the rope and the torsion spring, so as to prevent the protective door body from quickly hitting the door frame, thereby effectively reducing the noise generated when the protective door body is closed and protecting the protective door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram of part A is shown;

[0016] Figure 3 This is a schematic diagram of the connection structure between the cover plate and the buckle of the present invention;

[0017] Figure 4 for Figure 3 The enlarged structural diagram of part B is shown.

[0018] In the figure: 1. Installation box; 2. Protective door body; 3. Anti-collision structure; 301. First rotating shaft; 302. Torsion spring; 303. Roller; 304. Rope; 305. Through hole; 306. Connecting plate; 307. Second rotating shaft; 308. Guide wheel; 4. Fixing plate; 5. Cover plate; 6. Buckle; 7. Limiting structure; 701. Connecting box; 702. Insert rod; 703. Limiting hole; 704. Pull plate; 705. Tension spring; 706. Slot hole; 707. Connecting rod; 708. Connecting block. DETAILED DESCRIPTION

[0019] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 As shown, a protective door anti-collision component includes an installation box 1, an anti-collision structure 3 is installed in the installation box 1, and the anti-collision structure 3 includes a first rotating shaft 301, and the first rotating shaft 301 is rotatably connected to the installation box 1, and a roller 303 is fixedly connected to the first rotating shaft 301, and a rope 304 is wound around the roller 303, and the rope 304 is slidably connected to the installation box 1, and a torsion spring 302 is wound around the outside of the first rotating shaft 301, one end of the torsion spring 302 is fixedly connected to the installation box 1, and the other end of the torsion spring 302 is fixedly connected to the first rotating shaft 301, and the end of the rope 304 is fixedly connected to the fixing plate 4, and the fixing plate 4 is fixedly connected to the protective door body 2, and a limiting structure 7 is installed on the installation box 1; the anti-collision structure 3 plays a buffering role on the protective door body 2, so as to prevent the protective door body 2 from violently hitting the door frame to generate noise, and at the same time reduce the damage of the protective door body 2 due to hitting the door frame, so that the protective door body 2 is well protected.

[0021] As a technical optimization solution of the present invention, the installation box 1 is fixedly connected to a connecting plate 306 on the side facing the protective door body 2, and two second rotating shafts 307 are rotatably connected to the connecting plate 306. A guide wheel 308 is fixedly connected between the two second rotating shafts 307, and the rope 304 and the guide wheel 308 are in conflict with each other; the guide wheel 308 guides the rope 304, and at the same time reduces the friction between the rope 304 and the installation box 1, so that the rope 304 slides more smoothly.

[0022] As a technical optimization solution of the present invention, a through hole 305 is opened on the side of the installation box 1 facing the protective door body 2, and the rope 304 passes through the through hole 305; the cross-section of the roller 303 is an "I"-shaped structure, and the cross-section of the guide wheel 308 is an "I"-shaped structure; the "I"-shaped structure can effectively prevent the rope 304 from slipping off the roller 303, thereby increasing the stability of the rope 304 when used.

[0023] As a technical optimization solution of the present invention, a cover plate 5 is clamped on the installation box 1, and three buckles 6 are fixedly connected on both sides of the cover plate 5, and the buckles 6 are in contact with the inner wall of the installation box 1; the buckles 6 are elastic elements, and the buckles 6 can make the cover plate 5 and the installation box 1 clamped more firmly, and the cover plate 5 can provide good protection for the internal components of the installation box 1.

[0024] As a technical optimization solution of the present invention, the limiting structure 7 includes a connecting box 701, the top of the installation box 1 is fixedly connected to the connecting box 701, and the connecting box 701 is slidably connected to the insertion rod 702, and the top circumferential array of the first rotating shaft 301 is provided with a plurality of limiting holes 703, and the insertion rod 702 is engaged with one of the limiting holes 703, and the end of the insertion rod 702 is rotatably connected to a pull plate 704, and a tension spring 705 is fixedly connected between the pull plate 704 and the connecting box 701, and a slot 706 is provided on the pull plate 704, and the top of the installation box 1 is fixedly connected to a connecting block 708, and the connecting block 708 is fixedly connected to a connecting rod 707, and the slot 706 is engaged with the connecting rod 707; the first rotating shaft 301 is unable to rotate through the limiting structure 7, and the protective door body 2 no longer rotates, thereby increasing the stability of the protective door body 2 when it is opened.

[0025] When the utility model is in use, first, when the door closer installed on the protective door body 2 drives the protective door body 2 to rotate toward the door frame, the rope 304 fixedly connected to the protective door body 2 is forced to drive the roller 303 to rotate, and the roller 303 drives the first rotating shaft 301 to rotate, so that the extension rope 304 is gradually released in the direction of the protective door body 2. At the same time, the rope 304 conflicts with the guide wheel 308 during the release process to generate friction, driving the guide wheel 308 to rotate. The setting of the guide wheel 308 has a guiding effect on the rope 304, and can also reduce the gap between the rope 304 and the installation box 1. The friction of the rope 304 makes it slide more smoothly on the installation box 1, and the torsion of the rope 304 and the torsion spring 302 plays a buffering role on the protective door body 2, thereby preventing the protective door body 2 from quickly hitting the door frame, thereby effectively reducing the noise generated when the protective door body 2 is closed, and protecting the protective door body 2; when the first rotating shaft 301 rotates, the first rotating shaft 301 drives the torsion spring 302 to twist and store force. When the protective door body 2 is opened, the rope 304 loses its tension and no longer drives the first rotating shaft 301 to rotate. At this time, the torsion spring 302 releases energy to drive the first rotating shaft 301 When the first rotating shaft 301 rotates in the opposite direction, the first rotating shaft 301 drives the roller 303 to rotate. During the rotation of the roller 303, the extended part of the rope 304 is wrapped around the outside of the roller 303 until the rope 304 is tightened and the torsion spring 302 no longer drives the first rotating shaft 301 to rotate. The setting of the torsion spring 302 makes it easy for the first rotating shaft 301 to rotate and drive the roller 303 to automatically retract the part of the rope 304 extended outside the installation box 1, so that the rope 304 can achieve reciprocating motion and continuously play a buffering role on the protective door body 2; when the protective door body 2 needs to be opened for a long time, it is pulled in the direction away from the insertion rod 702. When the locking cam 706 is unlocked, the locking cam 707 is unlocked, and the winch cam 708 is unlocked, so that the winch cam 708 is unlocked.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A protective door anti-collision assembly, comprising a mounting box (1), characterized in that: An anti-collision structure (3) is installed in the installation box (1), and the anti-collision structure (3) includes a first rotating shaft (301), the first rotating shaft (301) is rotatably connected in the installation box (1), a roller (303) is fixedly connected to the first rotating shaft (301), a rope (304) is wound around the roller (303), and the rope (304) is slidably connected to the installation box (1), a torsion spring (302) is wound around the outside of the first rotating shaft (301), one end of the torsion spring (302) is fixedly connected to the installation box (1), and the other end of the torsion spring (302) is fixedly connected to the first rotating shaft (301), and the end of the rope (304) is fixedly connected to a fixing plate (4), and the fixing plate (4) is fixedly connected to the protective door body (2), and a limiting structure (7) is installed on the installation box (1).

2. The anti-collision assembly for a protective door according to claim 1, characterized in that: A connecting plate (306) is fixedly connected to the side of the installation box (1) facing the protective door body (2), two second rotating shafts (307) are rotatably connected to the connecting plate (306), a guide wheel (308) is fixedly connected between the two second rotating shafts (307), and the rope (304) and the guide wheel (308) are in conflict with each other.

3. The anti-collision assembly for a protective door according to claim 1, characterized in that: A through hole (305) is provided on one side of the installation box (1) facing the protective door body (2), and the rope (304) passes through the through hole (305).

4. The anti-collision assembly for a protective door according to claim 2, characterized in that: The cross section of the roller (303) is in the shape of an "I" and the cross section of the guide wheel (308) is in the shape of an "I".

5. The anti-collision assembly for a protective door according to claim 1, characterized in that: A cover plate (5) is clamped on the installation box (1), and three buckles (6) are fixedly connected to both sides of the cover plate (5), and the buckles (6) are in contact with the inner wall of the installation box (1).

6. The anti-collision assembly for a protective door according to claim 1, characterized in that: The limiting structure (7) includes a connection box (701), the top end of the installation box (1) is fixedly connected to the connection box (701), the connection box (701) is slidably connected to an insertion rod (702), the top end of the first rotating shaft (301) is provided with a plurality of limiting holes (703) in a circumferential array, and the insertion rod (702) is engaged with one of the limiting holes (703).

7. The anti-collision assembly for a protective door according to claim 6, characterized in that: The end of the insertion rod (702) is rotatably connected to a pull plate (704), and a tension spring (705) is fixedly connected between the pull plate (704) and the connection box (701).

8. The anti-collision assembly for a protective door according to claim 7, characterized in that: A slot (706) is provided on the pull plate (704), a connecting block (708) is fixedly connected to the top of the installation box (1), a connecting rod (707) is fixedly connected to the connecting block (708), and the slot (706) is engaged with the connecting rod (707).

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