Safety tongs for anti-falling door

Abstract

The utility model discloses a safety gear for an anti-falling door, which comprises a door body bottom beam component, a steel wire rope component for pulling a door body to rise and upright post components on two sides of the door body, a safety gear body is hinged in the end part of the door body bottom beam component, and the safety gear body is connected with the steel wire rope component. A tension spring is mounted between one end of the safety tongs body and the door body bottom beam assembly, and after the steel wire rope assembly fails, the tension spring can pull the safety tongs body to be clamped with the stand column assembly to prevent the door body from falling; compared with a traditional complex anti-falling and anti-lifting device, the anti-falling and anti-lifting device adopts a simple mechanical structure, the number of parts is reduced, the fault risk caused by too many parts is reduced, the overall reliability is improved, and the maintenance cost and the maintenance frequency are reduced; the tension spring can enable the bending part to be quickly clamped on the anti-falling rod, so that the door body is prevented from falling in time, and when the door body is closed and encounters severe weather such as wind blowing, the door body can be effectively prevented from being lifted up, and the stability of the door body is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of anti-falling door, specifically is a safety tongs for anti-falling door. BACKGROUND

[0002] In modern architecture, industrial plant and various large facilities, the door body is the passageway of personnel and material, and its safety is very important, especially some large flexible door, lift door, industrial door, etc., because the door body is heavy, there are many safety hazards in the lifting process.

[0003] The existing door body anti-falling and anti-lifting device has many drawbacks, the overall structure is complex, and there are many parts, which not only increases the installation and maintenance cost, but also has low reliability, and cannot meet the actual use requirement. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a safety tongs for anti-falling door to solve the problems in the above background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A safety tongs for anti-falling door, including door body bottom beam assembly, steel wire rope assembly of pulling door body up and stand column assembly on both sides of door body, the end of door body bottom beam assembly is hinged with safety tongs body, safety tongs body is connected with steel wire rope assembly, and the one end of safety tongs body is installed with tension spring between door body bottom beam assembly, and the tension spring will pull safety tongs body and stand column assembly clamping to prevent door body falling after the failure of steel wire rope assembly.

[0007] As a further scheme of the utility model: the door body bottom beam assembly includes upper beam, lower beam, mounting plate and hinged seat, the mounting plate is fixedly connected between the upper beam and the lower beam, the mounting plate is arranged at the end position of the upper beam and the lower beam, a through slot is formed in the middle of the mounting plate for the safety tongs body to pass through, and the hinged seat is fixedly connected to the mounting plate.

[0008] As a further scheme of the utility model: the steel wire rope assembly includes mounting seat, pulley and steel wire rope, the mounting seat is fixedly connected to the upper beam, the pulley is rotatably connected to the mounting seat through a bearing, and the steel wire rope is slidably connected to the pulley.

[0009] As a further scheme of the utility model: the stand column assembly includes stand column, anti-falling rod and wind-resistant rod, the stand column is of C-shaped structure, a plurality of anti-falling rods are arranged from top to bottom along the height direction of the stand column, the anti-falling rods are fixedly connected perpendicularly to the two inner walls of the stand column, and the wind-resistant rod is fixedly connected perpendicularly to the inner wall of the lower end of the stand column.

[0010] As a further scheme of the utility model: the upper end right side of the safety tongs body is equipped with a bending part for preventing the door body from falling by clamping the anti-falling rod, a rotating shaft is fixedly connected to the safety tongs body, the rotating shaft is hinged to the hinge seat, a connecting end for connecting with the steel wire rope is arranged above the rotating shaft of the safety tongs body, and the lower end of the safety tongs body is equipped with a mounting part for mounting the tension spring, one end of the tension spring is mounted on the mounting part, and the other end is mounted on the upper beam.

[0011] As a further scheme of the utility model: the upper end left side of the safety tongs body is equipped with a protruding part, a clamping groove is formed between the protruding part and the bending part, and the clamping groove is used for clamping the wind-resistant rod to prevent the door body from being lifted.

[0012] Compared with the prior art, the utility model has the beneficial effects that: a safety tongs for anti-falling door adopts a simple mechanical structure, compared with the traditional complex anti-falling and anti-lifting device, the number of parts is reduced, the risk of failure caused by too many parts is reduced, the overall reliability is improved, the maintenance cost and frequency are reduced. When the steel wire rope assembly fails, the tension spring can quickly pull the safety tongs body to rotate, the bending part is quickly clamped to the anti-falling rod, the door body is prevented from falling in time, and the safety of the personnel and equipment below is ensured. When the door body is closed and in bad weather such as wind, the door body can be effectively prevented from being lifted, and the stability of the door body is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structure schematic view of a safety tongs for anti-falling door in a non-working state.

[0014] Fig. 2 It is a structure schematic view of a safety tongs for anti-falling door in an anti-falling state.

[0015] Fig. 3 It is a structure schematic view of a safety tongs for anti-falling door in an anti-lifting state.

[0016] In the drawing: 1, door body bottom beam assembly; 11, upper beam; 12, lower beam; 13, mounting plate; 14, hinge seat; 2, steel wire rope assembly; 21, mounting seat; 22, pulley; 23, steel wire rope; 3, stand column assembly; 31, stand column; 32, anti-falling rod; 33, wind-resistant rod; 4, safety tongs body; 41, bending part; 42, rotating shaft; 43, connecting end; 44, mounting part; 45, protruding part; 5, tension spring. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figs. 1-3 In the embodiment of the present application, the safety clamp for the anti-falling door comprises a door body bottom beam assembly 1, a steel wire rope assembly 2 for pulling the door body upward, and a stand column assembly 3 on both sides of the door body, a safety clamp body 4 is hingedly connected to the end of the door body bottom beam assembly 1, the safety clamp body 4 is connected with the steel wire rope assembly 2, a tension spring 5 is installed between one end of the safety clamp body 4 and the door body bottom beam assembly 1, and the tension spring 5 will pull the safety clamp body 4 and the stand column assembly 3 to be clamped to prevent the door body from falling after the steel wire rope assembly 2 fails.

[0019] In the first embodiment of the present application, the door body bottom beam assembly 1 comprises an upper beam 11, a lower beam 12, an installation plate 13 and a hinged seat 14, the installation plate 13 is fixedly connected between the upper beam 11 and the lower beam 12, the installation plate 13 is arranged at the end position of the upper beam 11 and the lower beam 12, a through slot is formed in the middle of the installation plate 13 for the safety clamp body 4 to pass through, and the hinged seat 14 is fixedly connected to the installation plate 13.

[0020] The steel wire rope assembly 2 comprises a mounting seat 21, a pulley 22 and a steel wire rope 23, the mounting seat 21 is fixedly connected to the upper beam 11, the pulley 22 is rotatably connected to the mounting seat 21 through a bearing, and the steel wire rope 23 is slidably connected to the pulley 22.

[0021] The stand column assembly 3 comprises a stand column 31, an anti-falling rod 32 and a wind-resistant rod 33, the stand column 31 is of a C-shaped structure, a plurality of anti-falling rods 32 are arranged from top to bottom along the height direction of the stand column 31, the anti-falling rods 32 are fixedly connected perpendicularly to the two inner walls of the stand column 31, and one wind-resistant rod 33 is fixedly connected perpendicularly to the inner wall of the lower end of the stand column 31.

[0022] A bending part 41 for clamping the anti-falling rod 32 to prevent the door body from falling is arranged at the right side of the upper end of the safety clamp body 4, a rotating shaft 42 is fixedly connected to the safety clamp body 4, the safety clamp body 4 is hingedly connected to the hinged seat through the rotating shaft 42, a connecting end 43 for connecting with the steel wire rope 23 is arranged above the rotating shaft 42 of the safety clamp body 4, and an installation part 44 is arranged at the lower end of the safety clamp body 4, the installation part 44 is used for installing the tension spring 5, one end of the tension spring 5 is installed on the installation part 44, and the other end is installed on the upper beam 11.

[0023] As Fig. 1As shown, the state of the safety clamp body 4 when the door body is raised or lowered, at this time the steel wire rope 23 is in tension, the steel wire rope 23 exerts a pulling force on the safety clamp body 4, so that the safety clamp body 4 remains vertical and does not interfere with the lifting of the door body, and when the steel wire rope 23 is broken, as shown, Fig. 2 As shown, when the door body falls downward under the action of gravity, the safety clamp body 4 loses the pulling force of the steel wire rope 23, at this time the tension spring 5 exerts a left-up pulling force on the lower end of the safety clamp body 4, pulls the safety clamp body 4 to rotate along the rotating shaft, and makes the bent portion 41 rotate downward to the right, so as to be clamped on the anti-falling rod 32 passed in the falling process, preventing the door body from continuing to fall and ensuring safety.

[0024] The second embodiment of the utility model, other structures are the same as the above structure, the difference lies in that the protruding portion 45 is arranged on the left side of the upper end of the safety clamp body 4, the protruding portion 45 and the bent portion 41 form a clamping groove 46, and the clamping groove 46 is used for clamping the wind-resistant rod 33 to prevent the door body from being lifted. Fig. 1 As shown, at this time, according to the previous installation and debugging setting, a certain length of steel wire rope 23 is appropriately released, as shown, Fig. 3 As shown, at this time, according to the previous installation and debugging setting, a certain length of steel wire rope 23 is appropriately released, as shown,

[0025] The working principle of the utility model is: when the door body normally rises or falls, the steel wire rope 23 is in tension state, the steel wire rope 23 exerts pulling force on the safety tongs body 4, the safety tongs body 4 keeps vertical state, at this time, the safety tongs body 4 does not interfere with the door body lifting, when the steel wire rope 23 breaks, the door body falls under the action of gravity, the safety tongs body 4 loses the pulling force of the steel wire rope 23, at this time, the tension spring 5 exerts left-up pulling force on the lower end of the safety tongs body 4, pulls the safety tongs body 4 to rotate along the pivot, makes the bending part 41 rotate right-down, thereby is clamped on the anti-falling rod 32 passed in the falling process, prevents the door body from continuing to fall, guarantees safety, when the door body closes, the door body bottom beam assembly 1 abuts against the ground, at this time, according to the early installation and debugging setting, a certain length of steel wire rope 23 is appropriately released, makes the steel wire rope 23 be in slack state, the pulling force of the steel wire rope 23 on the safety tongs body 4 reduces, the tension spring 5 exerts left-up pulling force on the lower end of the safety tongs body 4, pulls the safety tongs body 4 to rotate along the pivot, makes the protruding part 45 rotate right-down, thereby makes the clamping groove 46 be clamped on the wind resisting rod 33, when wind-swept situation etc. is encountered, drives the door body to lift up, the steel wire rope 23 is more slack, the pulling force on the safety tongs body 4 continues to reduce, the tension spring 5 continues to pull the lower end of the safety tongs body 4 left-up, makes the clamping groove 46 be tightly clamped on the wind resisting rod 33, effectively prevents the door body from lifting.

[0026] Although the utility model has been explained in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A safety clamp for a fall arrest door, comprising a door body bottom beam assembly (1), a steel wire rope assembly (2) for pulling the door body to rise, and a stand column assembly (3) on both sides of the door body, characterized in that, The end of the door body bottom beam assembly (1) is hingedly connected with a safety clamp body (4), the safety clamp body (4) is connected with the steel wire rope assembly (2), a tension spring (5) is arranged between one end of the safety clamp body (4) and the door body bottom beam assembly (1), and the tension spring (5) pulls the safety clamp body (4) and the stand column assembly (3) to be clamped after the steel wire rope assembly (2) fails, so that the door body is prevented from falling.

2. The safety shroud according to claim 1, wherein The door body bottom beam assembly (1) comprises an upper beam (11), a lower beam (12), a mounting plate (13) and a hinge seat (14), the mounting plate (13) is fixedly connected between the upper beam (11) and the lower beam (12), the mounting plate (13) is arranged at the end position of the upper beam (11) and the lower beam (12), a through slot is formed in the middle of the mounting plate (13) and used for the safety clamp body (4) to pass through, and the hinge seat (14) is fixedly connected to the mounting plate (13).

3. The safety tong according to claim 2, wherein, The steel wire rope assembly (2) comprises a mounting seat (21), a pulley (22) and a steel wire rope (23), the mounting seat (21) is fixedly connected to the upper beam (11), the pulley (22) is rotatably connected to the mounting seat (21) through a bearing, and the steel wire rope (23) is slidably connected to the pulley (22).

4. The safety shroud according to claim 3, wherein The stand column assembly (3) comprises a stand column (31), an anti-falling rod (32) and a wind-resistant rod (33), the stand column (31) is in a C-shaped structure, a plurality of anti-falling rods (32) are arranged on the stand column (31) in the height direction from top to bottom, the anti-falling rods (32) are fixedly connected to the two inner walls of the stand column (31) perpendicularly, and the wind-resistant rod (33) is fixedly connected to the inner wall of the lower end of the stand column (31) perpendicularly.

5. The safety tong according to claim 4, wherein, The upper end of the safety clamp body (4) is provided with a bending portion (41) for clamping the anti-falling rod (32) to prevent the door body from falling, a rotating shaft (42) is fixedly connected to the safety clamp body (4), the safety clamp body (4) is hingedly connected to the hinge seat through the rotating shaft (42), a connecting end (43) for connecting the steel wire rope (23) is arranged above the rotating shaft (42) of the safety clamp body (4), and the lower end of the safety clamp body (4) is provided with a mounting portion (44) for mounting the tension spring (5), one end of the tension spring (5) is mounted on the mounting portion (44), and the other end of the tension spring (5) is mounted on the upper beam (11).

6. A safety shroud for a fall arrest door according to claim 5, wherein, The upper end of the safety clamp body (4) is provided with a protruding portion (45), a clamping groove (46) is formed between the protruding portion (45) and the bending portion (41), and the clamping groove (46) is used for clamping the wind-resistant rod (33) to prevent the door body from being lifted.

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