CN106930679B - Chain anti-breaking device of quick door - Google Patents
Chain anti-breaking device of quick door Download PDFInfo
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- CN106930679B CN106930679B CN201710324472.6A CN201710324472A CN106930679B CN 106930679 B CN106930679 B CN 106930679B CN 201710324472 A CN201710324472 A CN 201710324472A CN 106930679 B CN106930679 B CN 106930679B
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- door
- chain
- torsion spring
- wire rope
- steel wire
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
A chain anti-breaking device of a quick door comprises a fixed base, a steel wire rope, a pin shaft, an anti-falling hook and a torsion spring, wherein the fixed base is fixedly arranged on a door plate connecting plate, the door plate connecting plate spans a guide rail, one end of the door plate connecting plate is connected with a door plate, and the other end of the door plate connecting plate is connected with a chain; the upper end of the fixed base is provided with a pin shaft hole, and the anti-falling hook is connected with the fixed base through a pin shaft so as to form a unified structure with the door body; the torsion spring is sleeved on the pin shaft, one end of the torsion spring is installed on the fixed base, and the other end of the torsion spring is installed on the anti-falling hook; one end of the steel wire rope is fixed at the top of the anti-falling hook through a buckle, the torsion spring is compressed, and the other end of the steel wire rope is connected with the chain. The safety in utilization performance of the quick door is enhanced, the operation safety of users is guaranteed, the safe operation function of equipment is guaranteed, the human body interaction safety is further realized, meanwhile, each part of the mechanism is simple to machine, easy to assemble and high in operability, and the mechanism is stable in structure, wide in application range and applicable to the existing installed quick door transformation.
Description
Technical Field
The invention relates to a safety protection device for a quick door, in particular to a chain anti-breaking device for the quick door, which is used for preventing a door plate from freely falling after a chain in a transmission mechanism of the quick door is broken.
Background
At present, in the application of a quick door, particularly a turbine hard quick door (namely an aluminum alloy quick door), door bodies with different sizes are generally not uniform in the market, and the difference of individual customization is large, so that quick door products with various sizes and different door types can cause certain influence and damage to the service life of a chain to a considerable extent in a state of high-speed operation or long-time fatigue operation, important components in a chain action transmission mechanism are broken once, particularly, the chain is broken in the operation process of the door bodies, a great potential safety hazard exists, personal injury can be caused under serious conditions, and the chain of a bicycle is suddenly broken in comparison with riding, which is extremely dangerous, so that the chain breakage preventing device is designed in the structure of the quick door product more importantly. The device not only solves the problem of potential safety hazard, but also can further avoid personnel injury or great economic loss.
The invention patent with the publication number of CN 103104185B discloses a chain breakage preventing and tightening device of a rolling door machine, which comprises a support, a guide rod, a band-type brake spring, a brake block, a rolling door driven chain wheel with a brake circular table, a tension wheel, a tension spring and a tension support, wherein the brake block is tightly pressed by the band-type brake spring and is attached to the cylindrical surface of the brake circular table on the rolling door driven chain wheel, the rolling door is prevented from falling down in a friction resistance generating mode, the structure is complex, the applicability is poor, the rolling door cannot be immediately stopped, and the transformation of the existing installed rolling door is not facilitated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a chain anti-breaking device of a quick door, which has the advantages of simple structure, convenient and quick installation, safe use, wide application range, economy and practicability.
In order to solve the technical problem, the invention is realized as follows: a chain anti-breaking device of a quick door comprises a fixed base, a steel wire rope, a pin shaft, an anti-falling hook and a torsion spring, wherein the fixed base is fixedly arranged on a door plate connecting plate, the door plate connecting plate spans a guide rail, one end of the door plate connecting plate is connected with a door plate, and the other end of the door plate connecting plate is connected with a chain; the upper end of the fixed base is provided with a pin shaft hole, and the anti-falling hook is connected with the fixed base through a pin shaft so as to form a unified structure with the door body; the torsion spring is sleeved on the pin shaft, one end of the torsion spring is installed on the fixed base, and the other end of the torsion spring is installed on the anti-falling hook; one end of the steel wire rope is fixed at the top of the anti-falling hook through a buckle, the torsion spring is compressed, and the other end of the steel wire rope is connected with the chain.
Furthermore, the number of the anti-falling hooks is increased according to the size of the door body.
Furthermore, the top of the anti-falling hook is provided with a connecting hole, and the anti-falling hooks are connected together through a connecting rod.
Furthermore, one end of the steel wire rope is fixed at the top of the anti-falling hook or in the middle of the connecting rod through a buckle.
Furthermore, a fixing ring is arranged on the door panel connecting plate, and the steel wire rope penetrates through the fixing ring to be connected with the chain, so that the steel wire rope cannot fly in a mess and interfere with the operation of the door body.
Furthermore, a slotted hole is formed in the anti-falling hook, and one end of the torsion spring is installed in the slotted hole; the end face of the fixed base is provided with a hole, and the other end of the torsion spring is arranged in the hole.
Furthermore, the anti-falling hook is similar to a sickle shape, the head is narrow and wider backwards, and the top of the anti-falling hook is provided with a sawtooth structure.
Furthermore, the chain breakage preventing device is arranged on a door plate connecting plate of the door plate at the lowest end of the door body, and the left side and the right side of the chain breakage preventing device are symmetrically arranged.
At ordinary times, the anti-falling hook is lifted up through a steel wire rope arranged on the chain, and the torsion spring is compressed; once when the chain breaks, the steel wire rope loosens, and under the effect of torsion spring, the anti-falling hook rotates, and then blocks between door plant connecting plate and the guide rail, and the sawtooth structure at the anti-falling hook top can increase frictional force rapidly and rotate, controls the whereabouts of the door body, through with the help of torsion spring and the effective cooperation of steel wire rope, prevents that quick door from causing the potential safety hazard because of the chain fracture during the use, has further reached the purpose of protection people, car, thing, door safety.
Compared with the prior art, the invention has the beneficial effects that:
the invention enhances the use safety performance of the quick door, not only ensures the operation safety of users, but also ensures the safe operation function of equipment, further realizes the human body interaction safety, and simultaneously, each part of the mechanism has simple processing, easy assembly, high operability, stable structure and wide application range, and can also be applied to the reconstruction of the existing installed quick door.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing the effect of the present invention when the chain is broken;
wherein, unable adjustment base 1, wire rope 2, round pin axle 3, prevent weighing down hook 4, torsion spring 5, connecting rod 6, solid fixed ring 7, slotted hole 8, hole 9, guide rail 10, door plant connecting plate 11.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
A chain anti-breaking device of a quick door comprises a fixed base 1, a steel wire rope 2, a pin shaft 3, an anti-falling hook 4 and a torsion spring 5, wherein the fixed base 1 is fixedly arranged on a door plate connecting plate 11, the door plate connecting plate 11 spans on a guide rail 10, one end of the door plate connecting plate is connected with a door plate, and the other end of the door plate connecting plate is connected with a chain; the upper end of the fixed base 1 is provided with a pin shaft hole, and the anti-falling hook 4 is connected with the fixed base 1 through a pin shaft 3 so as to form a unified structure with the door body; the torsion spring 5 is sleeved on the pin shaft 3, one end of the torsion spring is installed on the fixed base 1, and the other end of the torsion spring is installed on the anti-falling hook 4; one end of the steel wire rope 2 is fixed at the top of the anti-falling hook 4 through a buckle, the torsion spring 5 is pressed, and the other end of the steel wire rope 2 is connected with the chain.
According to the size of the door body, the number of the anti-falling hooks 4 is increased.
The top of the anti-falling hook 4 is provided with a connecting hole, and the anti-falling hooks 4 are connected together through a connecting rod 6.
One end of the steel wire rope 2 is fixed at the top of the anti-falling hook 4 or in the middle of the connecting rod 6 by a buckle.
A fixing ring 7 is arranged on the door panel connecting plate 11, and the steel wire rope 2 penetrates through the fixing ring 7 to be connected with the chain, so that the steel wire rope 2 cannot fly in a mess and interfere with the operation of a door body.
A slotted hole 8 is formed in the anti-falling hook 4, and one end of the torsion spring 5 is installed in the slotted hole 8; the end face of the fixed base 1 is provided with a hole 9, and the other end of the torsion spring 5 is arranged in the hole.
The anti-falling hook 4 is similar to a sickle shape, the head is narrow, the head is wider and wider backwards, and the top is provided with a sawtooth structure.
The chain breakage preventing device is arranged on a door plate connecting plate 11 of a door plate at the lowest end of the door body, and the left side and the right side of the chain breakage preventing device are symmetrically arranged.
At ordinary times, the anti-falling hook 4 is lifted up through the steel wire rope 2 arranged on the chain, and the torsion spring 5 is compressed; once when taking place the chain fracture, wire rope 2 will loosen, under torsion spring 5's effect, prevent weighing down hook 4 rotatory, and then block between door plant connecting plate 11 and guide rail 10, prevent weighing down the sawtooth structure at hook 4 top and can increase frictional force rapidly and rotatory, control the whereabouts of the door body, through the effective cooperation with wire rope 2 with the help of torsion spring 5, prevent that the quick door from causing the potential safety hazard because of the chain fracture during the use, further reached the purpose of protection people, car, thing, door safety.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (6)
1. The utility model provides a device is prevented absolutely by chain of quick door which characterized in that: comprises a fixed base, a steel wire rope, a pin shaft, an anti-falling hook and a torsion spring,
the fixed base is fixedly arranged on a door plate connecting plate, the door plate connecting plate spans the guide rail, one end of the door plate connecting plate is connected with the door plate, and the other end of the door plate connecting plate is connected with the chain;
the upper end of the fixed base is provided with a pin shaft hole, and the anti-falling hook is connected with the fixed base through a pin shaft so as to form a unified structure with the door body;
the torsion spring is sleeved on the pin shaft, one end of the torsion spring is installed on the fixed base, and the other end of the torsion spring is installed on the anti-falling hook;
one end of the steel wire rope is fixed at the top of the anti-falling hook by a buckle to compress the torsion spring, and the other end of the steel wire rope is connected with the chain;
a slotted hole is formed in the anti-falling hook, and one end of the torsion spring is installed in the slotted hole; the end face of the fixed base is provided with a hole, and the other end of the torsion spring is arranged in the hole;
the anti-falling hook is similar to a sickle shape, the head is narrower and wider backwards, and the top of the anti-falling hook is provided with a sawtooth structure;
at ordinary times, the anti-falling hook is lifted up through a steel wire rope arranged on the chain, and the torsion spring is compressed; once the chain breaks, the steel wire rope loosens, the anti-falling hook rotates under the action of the torsion spring and then is clamped between the door plate connecting plate and the guide rail, and the sawtooth structure at the top of the anti-falling hook can rapidly increase friction force and rotate to control the falling of the door body.
2. The chain breakage preventing device for the quick door as claimed in claim 1, wherein: according to the size of the door body, the number of the anti-falling hooks is increased.
3. The chain breakage preventing device for the quick door as claimed in claim 2, wherein: the top of the anti-falling hook is provided with a connecting hole, and the anti-falling hooks are connected together through a connecting rod.
4. A chain breakage preventing device for a quick door according to claim 1 or 3, wherein: one end of the steel wire rope is fixed at the top of the anti-falling hook or in the middle of the connecting rod through a buckle.
5. The chain breakage preventing device for the quick door as claimed in claim 1, wherein: the door plate connecting plate is provided with a fixing ring, and the steel wire rope penetrates through the fixing ring to be connected with the chain, so that the steel wire rope cannot fly in a mess and interfere with the operation of the door body.
6. The chain breakage preventing device for the quick door as claimed in claim 1, wherein: the chain breakage preventing device is arranged on a door plate connecting plate of a door plate at the lowest end of the door body, and the left side and the right side of the chain breakage preventing device are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324472.6A CN106930679B (en) | 2017-05-10 | 2017-05-10 | Chain anti-breaking device of quick door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324472.6A CN106930679B (en) | 2017-05-10 | 2017-05-10 | Chain anti-breaking device of quick door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930679A CN106930679A (en) | 2017-07-07 |
| CN106930679B true CN106930679B (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324472.6A Active CN106930679B (en) | 2017-05-10 | 2017-05-10 | Chain anti-breaking device of quick door |
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| Country | Link |
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| CN (1) | CN106930679B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756711B (en) * | 2018-06-13 | 2023-10-24 | 无锡市飞龙门业有限公司 | Electric rolling door with broken chain protector |
| CN113023277B (en) * | 2021-03-22 | 2022-09-16 | 徐州徐工随车起重机有限公司 | Floor truck with anti-falling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260840A (en) * | 1995-03-22 | 1996-10-08 | Sanwa Shutter Corp | Safety device of overhead door |
| CN201314189Y (en) * | 2008-11-18 | 2009-09-23 | 蒋红太 | Flexible anti-decoupling device for plant gate |
| CN201339405Y (en) * | 2008-11-27 | 2009-11-04 | 蒋育新 | Dropping-prevention safety protection device |
| CN201581790U (en) * | 2009-12-14 | 2010-09-15 | 巴士德新技术(天津)有限公司 | Anti-breaking device of large-scale flexible lifting door |
| CN202945989U (en) * | 2012-11-29 | 2013-05-22 | 江苏鑫德龙涂装设备有限公司 | Novel anti-falling device |
| CN207033319U (en) * | 2017-05-10 | 2018-02-23 | 青岛拉斐特智能装备科技有限公司 | A kind of chain anti-off device of rapid door |
-
2017
- 2017-05-10 CN CN201710324472.6A patent/CN106930679B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260840A (en) * | 1995-03-22 | 1996-10-08 | Sanwa Shutter Corp | Safety device of overhead door |
| CN201314189Y (en) * | 2008-11-18 | 2009-09-23 | 蒋红太 | Flexible anti-decoupling device for plant gate |
| CN201339405Y (en) * | 2008-11-27 | 2009-11-04 | 蒋育新 | Dropping-prevention safety protection device |
| CN201581790U (en) * | 2009-12-14 | 2010-09-15 | 巴士德新技术(天津)有限公司 | Anti-breaking device of large-scale flexible lifting door |
| CN202945989U (en) * | 2012-11-29 | 2013-05-22 | 江苏鑫德龙涂装设备有限公司 | Novel anti-falling device |
| CN207033319U (en) * | 2017-05-10 | 2018-02-23 | 青岛拉斐特智能装备科技有限公司 | A kind of chain anti-off device of rapid door |
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| Publication number | Publication date |
|---|---|
| CN106930679A (en) | 2017-07-07 |
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