CN202788411U - Stretchable spring type lift door - Google Patents
Stretchable spring type lift door Download PDFInfo
- Publication number
- CN202788411U CN202788411U CN2012204951286U CN201220495128U CN202788411U CN 202788411 U CN202788411 U CN 202788411U CN 2012204951286 U CN2012204951286 U CN 2012204951286U CN 201220495128 U CN201220495128 U CN 201220495128U CN 202788411 U CN202788411 U CN 202788411U
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- CN
- China
- Prior art keywords
- door
- extension spring
- pulley
- lever gear
- rope
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a lift door, in particular to a stretchable spring type lift door which comprises a door body, a synchronous belt and a transmission device which drives the lift door to move up and down. The transmission device is composed of a transmission shaft and a motor which drives the transmission shaft to revolve. Pulley sets are arranged on the position, corresponding to two ends of the door body, of the transmission shaft. The first pulleys and the second pulleys are fixed coaxially and form the pulley sets. Arms of force of the second pulleys are smaller than the first pulleys. One end of a flexible rope is connected on the outer rim of each first pulley. And the other end of the flexible rope is fixedly connected with the external side of the bottom of the door body. One end of a belt rope is connected on the outer side of each second pulley. The other end of the belt rope is connected with one end of a stretchable spring. The other end of the stretchable spring is fixedly connected with the ground. When the belt rope is fully stretched out, the stretchable spring is in a non-stretched state. When the flexible rope is fully stretched, the door is closed. The stretchable spring type lift door reduces weight of the door body by balancing, reduces load of the motor and assists in opening and closing the door through the stretchable spring.
Description
[technical field]
The utility model relates to lever gear door, particularly a kind of extension spring formula lever gear door.
[background technology]
Existing lever gear door adopts the torsion spring counterweight, service hoisting door body, and structural instability, torsion spring are difficult for adjusting, and easily give birth to the corrective maintenance trouble.
[summary of the invention]
Torsion spring counter-weight assist lever gear door body causes structural unstable problem in the prior art in order to solve, and the utility model provides a kind of structure of extension spring service hoisting door body.
For achieving the above object, design a kind of extension spring formula lever gear door, comprise a body, the transmission device that Timing Belt and drive lever gear door move up and down, transmission device is comprised of the motor that power transmission shaft and driving power transmission shaft rotate, described power transmission shaft is fixed with assembly pulley in the position to the body two ends of answering the door, assembly pulley is fixedly formed by the first pulley and the second pulley coaxle, the arm of force of the second pulley is less than the first pulley, connect flexible cable one end on the first pulley outer, the flexible cable other end is fixedly connected with the outside of door body bottom, connecting band rope one end on the second pulley outer, the band rope other end connects extension spring one end, and the extension spring other end is fixedly connected with ground, when the band rope all launches, extension spring is in unstretched state, and door was in closed condition when flexible cable was all launched.
The band running block rotated when power transmission shaft rotated, take-up strap rope in the rotation process, extension spring is stretched, opposition when the second pulley is subject to the extension spring stretching, this power is passed to the first pulley and is finally acted on a body by the second pulley, allows door be subject to and its direction of motion opposite effect power, thereby balances a body weight, reduce motor load, play the effect of auxiliary switch door.
The utlity model has following prioritization scheme:
Described extension spring is fixedly connected with ground by base.
Described flexible cable is rope, cable wire or chain.
When the satisfied door of described band rope length was half-open, the band rope is the length of expansion all.
Described flexible cable is fixedly connected with by the outside of connector with door body bottom.Connector is preferably metal rod or sheet metal.
Described being fixedly connected as welded or the screw thread connection.
[description of drawings]
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is lever gear door opening schematic diagram;
Fig. 3 is lever gear door closed condition schematic diagram;
4. body 5. extension springs 6. bases 7. first pulleys 8. second pulleys 9. connectors of 1. power transmission shaft 2. flexible cables, 3. band ropes among the figure.
[specific embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer, by reference to the accompanying drawings the utility model is further elaborated.Production equipment among the application all is the common equipment of this area, should be appreciated that specific embodiment described herein only in order to explaining the utility model, and is not used in restriction the utility model.
Embodiment 1:
As shown in Figure 1, the utility model comprises a body, the transmission device that Timing Belt and drive lever gear door move up and down, transmission device is comprised of the motor that power transmission shaft and driving power transmission shaft rotate, power transmission shaft is positioned at a body top with respect on the door body plane rearward position, described power transmission shaft is fixed with assembly pulley in the position to the body two ends of answering the door, assembly pulley is fixedly formed by the first pulley and the second pulley coaxle, the arm of force of the second pulley is less than the first pulley, connect cable wire one end on the first pulley outer, the cable wire other end is fixedly connected with by the outside of sheet metal with door body bottom, connecting band rope one end on the second pulley outer, the band rope other end connects extension spring one end, the extension spring other end is fixedly connected with ground by base, when the band rope all launches, extension spring is in unstretched state, and door was in closed condition when cable wire all launched.When the satisfied door of band rope length was half-open, the band rope is the length of expansion all.The mode that is fixedly connected with is welding or screw thread connection.
Shown in Fig. 2 and 3, on the basis of embodiment 1, drive motors drives power transmission shaft and rotates the rotation of last band running block, take-up strap rope in the rotation process, and extension spring is stretched, opposition when the second pulley is subject to the extension spring stretching, this power is passed to the first pulley and is finally acted on a body by the second pulley, allows door be subject to and present condition opposite effect power, thereby balances a body weight, reduce motor load, play the effect of auxiliary switch door.
As different from Example 1, the cable wire with embodiment 1 replaces with chain.
Claims (7)
1. extension spring formula lever gear door, comprise a body, the transmission device that Timing Belt and drive lever gear door move up and down, transmission device is comprised of the motor that power transmission shaft and driving power transmission shaft rotate, it is characterized in that described power transmission shaft is fixed with assembly pulley in the position to the body two ends of answering the door, assembly pulley is fixedly formed by the first pulley and the second pulley coaxle, the arm of force of the second pulley is less than the first pulley, connect flexible cable one end on the first pulley outer, the flexible cable other end is fixedly connected with the outside of door body bottom, connecting band rope one end on the second pulley outer, the band rope other end connects extension spring one end, the extension spring other end is fixedly connected with ground, when the band rope all launched, extension spring was in unstretched state, and door was in closed condition when flexible cable was all launched.
2. extension spring formula lever gear door as claimed in claim 1 is characterized in that described extension spring is fixedly connected with ground by base.
3. extension spring formula lever gear door as claimed in claim 1 is characterized in that described flexible cable is rope, adhesive tape, cable wire or chain.
4. extension spring formula lever gear door as claimed in claim 1 when it is characterized in that the satisfied door of described band rope length is half-open, is with all length of expansion of rope.
5. extension spring formula lever gear door as claimed in claim 1 is characterized in that described flexible cable is fixedly connected with by the outside of connector with door body bottom.
6. extension spring formula lever gear door as claimed in claim 5 is characterized in that described connector is metal rod or sheet metal.
7. extension spring formula lever gear door as claimed in claim 1 is characterized in that described be fixedly connected as welding or screw thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204951286U CN202788411U (en) | 2012-09-25 | 2012-09-25 | Stretchable spring type lift door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204951286U CN202788411U (en) | 2012-09-25 | 2012-09-25 | Stretchable spring type lift door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788411U true CN202788411U (en) | 2013-03-13 |
Family
ID=47815687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204951286U Expired - Fee Related CN202788411U (en) | 2012-09-25 | 2012-09-25 | Stretchable spring type lift door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217943A (en) * | 2017-07-04 | 2017-09-29 | 武健 | Electric up-down door switch unit |
| CN107905685A (en) * | 2017-11-06 | 2018-04-13 | 李玉金 | A kind of lifting window for installing gas spring additional |
| CN109592062A (en) * | 2018-12-04 | 2019-04-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of connecting bridge structure |
-
2012
- 2012-09-25 CN CN2012204951286U patent/CN202788411U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217943A (en) * | 2017-07-04 | 2017-09-29 | 武健 | Electric up-down door switch unit |
| CN107217943B (en) * | 2017-07-04 | 2019-03-01 | 武健 | Electric up-down door switch unit |
| CN107905685A (en) * | 2017-11-06 | 2018-04-13 | 李玉金 | A kind of lifting window for installing gas spring additional |
| CN109592062A (en) * | 2018-12-04 | 2019-04-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of connecting bridge structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |