阅读说明：本技术 一种柔性门下限位双重保护装置 (Lower limiting double-protection device for flexible door ) 是由 何佳炼 吴海红 田棋 赵磊 于 2021-10-18 设计创作，主要内容包括：本发明公开一种柔性门下限位双重保护装置,包括对称设置的柔性门轨道,上过梁,所述上过梁设置在柔性门轨道顶端,所述柔性门轨道之间设置有门体,所述柔性门轨道底部帘布上设置有移动过梁；左侧柔性门轨道底部设置有行程开关组件A,行程开关组件A上方移动过梁左侧设置有下限位碰块,下限位碰块上方移动过梁两侧设置有防坠落装置；所述上过梁两端设置有一重保护装置,所述上过梁中部设置有驱动电机；本发明结构简单,设计合理,能及时有效的使电机断电停运,防止事故的发生；若一重保护装置失灵,门体在关闭运行过程中触及二重保护装置,能有效的断电,停止运行。(The invention discloses a lower limiting double-protection device for a flexible door, which comprises flexible door tracks and an upper lintel, wherein the flexible door tracks are symmetrically arranged; a travel switch assembly A is arranged at the bottom of the left flexible door track, a lower limit collision block is arranged on the left side of the moving lintel above the travel switch assembly A, and anti-falling devices are arranged on two sides of the moving lintel above the lower limit collision block; two ends of the upper lintel are provided with a heavy protection device, and the middle part of the upper lintel is provided with a driving motor; the invention has simple structure and reasonable design, can effectively cut off the power supply and stop the operation of the motor in time and prevent accidents; if one double protection device fails, the door body touches the double protection device in the closing operation process, so that the power can be effectively cut off and the operation can be stopped.)

1. The utility model provides a spacing duplicate protection device under flexible door, flexible door track (7) including the symmetry sets up go up lintel (1), go up lintel (1) and set up on flexible door track (7) top, its characterized in that: a door body (3) is arranged between the flexible door tracks (7), the door body (3) comprises a plurality of curtain cloth (3-1), a curtain sheet frame (3-2) is arranged between the adjacent curtain cloth (3-1), and a movable lintel (6) is arranged on the curtain cloth (3-1) at the bottom of the flexible door track (7); a travel switch component A (4-1) is arranged at the bottom of the left flexible door track (7), the travel switch component A (4-1) comprises a travel switch (4-1-2), one end of the travel switch (4-1-2) is provided with an electric wire harness section (4-1-1), the other end of the travel switch (4-1-2) is connected with a telescopic crank arm (4-1-3), and the other end of the telescopic crank arm (4-1-3) is provided with a collision block (4-1-4); a lower limit collision block (4-2) is arranged on the left side of the moving lintel (6) above the travel switch assembly A (4-1), and anti-falling devices (5) are arranged on two sides of the moving lintel (6) above the lower limit collision block (4-2); two ends of the upper lintel (1) are provided with a heavy protection device (2), the heavy protection device (2) comprises a base (2-2), the left side of the top of the base (2-2) is provided with a steering wheel (2-1), and the right side is provided with a double-limiting device (2-5); a connecting rod (2-3) is arranged at the center of the steering wheel (2-1), and a rope pressing roller (2-4) is arranged at the other end of the connecting rod (2-3); a driving motor (9) is arranged in the middle of the upper lintel (1), a steel wire rope A (10) and a steel wire rope B (8) are arranged on the driving motor (9), and the steel wire rope A (10) bypasses the top end of the left steering wheel (2-1) from the top end of the driving motor (9) and is connected with a falling prevention device (5) on the left side of the movable lintel (6); and the steel wire rope B (8) rounds the top end of the right steering wheel (2-1) from the bottom end of the driving motor (9) and is connected with the anti-falling device (5) on the right side of the movable lintel (6).

2. The lower limit double protection device of the flexible door according to claim 1, wherein: the travel switch component A (4-1) and the lower limit collision block (4-2) form a double protection device (4).

3. The lower limit double protection device of the flexible door according to claim 1, wherein: the double-limiting device (2-5) comprises a base (2-5-3), a travel switch group price B (2-5-1) and a travel switch component C (2-5-2) are arranged on the base (2-5-3), and the travel switch group price B (2-5-1), the travel switch component C (2-5-2) and the travel switch component A (4-1) are identical in structure.

4. The lower limit double protection device of the flexible door according to claim 3, wherein: the anti-falling device (5) comprises two hooks (5-1) and two vertical plates (5-3), wherein rotary holes (5-2) are formed in the vertical plates (5-3), a hook rotary shaft sleeve is arranged in the rotary hole (5-2) between the two hooks (5-1), the hook rotary shaft sleeve is arranged on a hook pin shaft, and the hook pin shaft is arranged between the two vertical plates (5-3).

Technical Field

The invention relates to the technical field of flexible doors, in particular to a lower limiting double-protection device for a flexible door.

Background

The flexible door is an upper-folding special door, has stable performance, and is mainly applied to large-area entrance doors such as large warehouses, large workshops, large logistics channels, coating workshops in shipbuilding industry and the like; the existing automatic flexible door consists of a flexible door, upright posts on two sides of the flexible door, a motor on the upright posts and a steel wire rope, wherein one end of the steel wire rope is fixed at the lower end of the flexible door, and the other end of the steel wire rope is wound on a reel of the motor; the flexible door is lifted and lowered by the rotation of the motor, and the lifting and lowering processes are completely controlled by the traction force of one motor. The traditional flexible door drives the lower cross beam to vertically stack and operate through a steel wire rope, so that the opening and closing of the curtain cloth are realized; in the movement process of the flexible door, the steel wire rope is broken, and unforeseeable results can be caused; therefore, it is necessary to provide a lower limit double protection device for a flexible door.

Disclosure of Invention

The invention aims to solve the technical problems and provides a lower limiting double-protection device for a flexible door.

In order to achieve the technical purpose and achieve the technical requirements, the technical scheme adopted by the invention is a lower limiting double-protection device for a flexible door, which comprises flexible door tracks and an upper lintel, wherein the flexible door tracks are symmetrically arranged, and the upper lintel is arranged at the top end of the flexible door tracks and is characterized in that: a door body is arranged between the flexible door tracks, the door body comprises a plurality of curtain cloth, a curtain sheet frame is arranged between the adjacent curtain cloth, and a movable lintel is arranged on the curtain cloth at the bottom of the flexible door track; the bottom of the left flexible door track is provided with a travel switch assembly A, the travel switch assembly A comprises a travel switch, one end of the travel switch is provided with an electric wire harness section, the other end of the travel switch is connected with a telescopic crank arm, and the other end of the telescopic crank arm is provided with a collision block; a lower limiting collision block is arranged on the left side of the moving lintel above the travel switch assembly A, and anti-falling devices are arranged on two sides of the moving lintel above the lower limiting collision block; the two ends of the upper lintel are provided with a heavy protection device, the heavy protection device comprises a base, the left side of the top of the base is provided with a steering wheel, and the right side of the top of the base is provided with a double-limiting device; a connecting rod is arranged in the center of the steering wheel, and a rope pressing roller is arranged at the other end of the connecting rod; a driving motor is arranged in the middle of the upper lintel, a steel wire rope A and a steel wire rope B are arranged on the driving motor, and the steel wire rope A bypasses the top end of the left steering wheel from the top end of the driving motor and is connected with a left falling prevention device of the movable lintel; and the steel wire rope B bypasses the top end of the right steering wheel from the bottom end of the driving motor and is connected with the falling-preventing device on the right side of the movable lintel.

Preferably: the travel switch component A and the lower limit collision block form a dual protection device.

Preferably: the double-limiting device comprises a base, wherein a travel switch group price B and a travel switch assembly C are arranged on the base, and the travel switch group price B, the travel switch assembly C and the travel switch assembly A are identical in structure.

Preferably: the anti-falling device comprises two hooks and two vertical plates, wherein rotary holes are formed in the vertical plates, hook rotary shaft sleeves are arranged in the rotary holes between the two hooks and are arranged on hook pin shafts, and the hook pin shafts are arranged between the two vertical plates.

Compared with the prior art, the invention has the following beneficial effects:

the double-protection device is arranged below the flexible door in a limiting mode, and the double-protection device can lead the steel wire rope to be loosened if the steel wire rope is blocked by foreign matters or broken in the falling process of the door body, so that the rope pressing roller falls onto the double-limit switch under the action of gravity, the motor can be effectively powered off and stopped in time, and accidents are prevented; if one double protection device fails, the door body touches the double protection device in the closing operation process, so that the power can be effectively cut off and the operation can be stopped.

Drawings

FIG. 1 is a schematic view of the assembly structure of the present invention;

FIG. 2 is a schematic view of a heavy duty protection apparatus according to the present invention;

FIG. 3 is a schematic view of a dual protection device according to the present invention;

FIG. 4 is a schematic view of a fall arrest device according to the present invention;

FIG. 5 is a schematic view of the travel switch assembly of the present invention;

in the figure: 1. an upper lintel; 2. a heavy protection device; 2-1, a steering wheel; 2-2, a base; 2-3, connecting rod; 2-4, pressing a rope roller; 2-5, a double limiting device; 2-5-1, a travel switch component B; 2-5-2, a travel switch component C; 2-5-3, a base; 3. a door body; 3-1, cord fabric; 3-2, curtain sheet frame; 4. a double protection device; 4-1, a travel switch component A; 4-1-1, wire harness section; 4-1-2, a travel switch; 4-1-3, a telescopic crank arm; 4-1-4, bump block; 4-2, a lower limit collision block; 5. a fall arrest device; 5-1, hanging hooks; 5-2, rotating the hole; 5-3, vertical plate; 6. moving the lintel; 7. a flexible door track; 8. a steel wire rope B; 9. a drive motor; 10. and a steel wire rope A.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

In the drawings: the utility model provides a spacing duplicate protection device under flexible door, is gone up lintel 1 including the flexible door track 7 that the symmetry set up, go up lintel 1 and set up on 7 tops of flexible door track, its characterized in that: a door body 3 is arranged between the flexible door tracks 7, the door body 3 comprises a plurality of curtain cloth 3-1, a curtain sheet frame 3-2 is arranged between the adjacent curtain cloth 3-1, and a movable lintel 6 is arranged on the curtain cloth 3-1 at the bottom of the flexible door track 7; the bottom of the left flexible door track 7 is provided with a travel switch assembly A4-1, the travel switch assembly A4-1 comprises a travel switch 4-1-2, one end of the travel switch 4-1-2 is provided with an electric wire harness section 4-1-1, the other end of the travel switch is connected with a telescopic crank arm 4-1-3, and the other end of the telescopic crank arm 4-1-3 is provided with a collision block 4-1-4; a lower limit collision block 4-2 is arranged on the left side of the moving lintel 6 above the travel switch assembly A4-1, and anti-falling devices 5 are arranged on two sides of the moving lintel 6 above the lower limit collision block 4-2; two ends of the upper lintel 1 are provided with a heavy protection device 2, the heavy protection device 2 comprises a base 2-2, the left side of the top of the base 2-2 is provided with a steering wheel 2-1, and the right side is provided with a double limiting device 2-5; a connecting rod 2-3 is arranged at the center of the steering wheel 2-1, and a rope pressing roller 2-4 is arranged at the other end of the connecting rod 2-3; the middle part of the upper lintel 1 is provided with a driving motor 9, a steel wire rope A10 and a steel wire rope B8 are arranged on the driving motor 9, and the steel wire rope A10 bypasses the top end of the left steering wheel 2-1 from the top end of the driving motor 9 and is connected with the anti-falling device 5 on the left side of the movable lintel 6; the steel wire rope B8 is connected with the anti-falling device 5 on the right side of the movable lintel 6 by passing through the bottom end of the driving motor 9 and the top end of the right steering wheel 2-1.

In the preferred embodiment, the travel switch assembly A4-1 and the lower limit stop 4-2 form a dual protection device 4.

In the preferred embodiment, the double-limiting device 2-5 comprises a base 2-5-3, a travel switch group value B2-5-1 and a travel switch assembly C2-5-2 are arranged on the base 2-5-3, and the travel switch group value B2-5-1, the travel switch assembly C2-5-2 and the travel switch assembly A4-1 are identical in structure.

In the preferred embodiment, the anti-falling device 5 comprises two hooks 5-1 and two vertical plates 5-3, wherein the vertical plates 5-3 are provided with rotating holes 5-2, a hook rotating shaft sleeve is arranged in the rotating hole 5-2 between the two hooks 5-1, the hook rotating shaft sleeve is arranged on a hook pin shaft, and the hook pin shaft is arranged between the two vertical plates 5-3.

When the door body 3 descends, if the door body 3 is blocked by foreign matters or the steel wire rope is broken, the door body 3 cannot move downwards continuously, the steel wire rope is loosened, and the steel wire rope falls onto the double limiting devices 2-5 under the action of gravity, so that the motor is timely and effectively powered off and stopped, and accidents are prevented; the double protection device 4 is installed at the bottom of the door body 3, the double protection device 4 is composed of a travel switch assembly A4-1 and a lower limit collision block 4-2, the travel switch assembly A4-1 is installed at the bottom of a flexible door track 7, the lower limit collision block 4-2 is installed on a moving lintel 6 above the flexible door track 7, if one protection device 2 fails, the door body 3 touches the double protection device 4 in the closing operation process, when the lower limit collision block 4-2 on the moving lintel 6 touches the travel switch assembly A4-1 on the flexible door track 7, the door body 3 stops moving, can effectively cut off the power, and can prevent the electric hoist from over-operating to cause disorder of the steel wire rope, and the steel wire rope is stressed unevenly when the electric hoist operates again, thereby affecting the service life of the steel wire rope.

The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, but not intended to limit the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.