CN103656885A - Double-cavity descent control device - Google Patents
Double-cavity descent control device Download PDFInfo
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- CN103656885A CN103656885A CN201310704655.2A CN201310704655A CN103656885A CN 103656885 A CN103656885 A CN 103656885A CN 201310704655 A CN201310704655 A CN 201310704655A CN 103656885 A CN103656885 A CN 103656885A
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Abstract
The invention provides a double-cavity descent control device which is simple in structure and practical. The double-cavity descent control device comprises a support, a crank shaft, a connecting rod, and a cylinder with a piston. A piston rod of the piston penetrates through the end wall of one end of the cylinder body. The piston rod is in movable seal with the end wall of the cylinder body. The piston divides the inside of the cylinder body into a first cavity and a second cavity. The crank shaft and the cylinder body are both arranged on the support. One end of the crank shaft is provided with a landing belt in a winding mode. The small head end of the connecting rod is connected with the piston rod of the piston through a piston pin. The large head end of the connecting rod is connected with a connecting rod shaft neck of the crank shaft through a connecting rod bearing. A pipeline communicated with the first cavity and the second cavity is arranged in the cylinder body and is provided with a valve. When the landing belt drives the crank shaft to rotate, the piston is driven by the connecting rod to be in reciprocating motion. The piston compresses air closed in the first cavity and the second cavity periodically, and the resistance of the air can hinder the crank shaft from rotating quickly, so that the descending speed of the support can be reduced, and the purpose of slow descending is achieved.
Description
Technical field
The invention belongs to lifesaving apparatus technical field, specially refer to a kind of bicavate descending lifeline.
Background technology
Descending lifeline is the device for height airborne fortune article or personnel, can be for lifesaving, and for example, while saying high-rise building with fire disaster, people can utilize descending lifeline to drop to voluntarily ground.Traditional descending lifeline is to utilize the principle of clock and watch walking to make, its inner utilization gear is realized slow falling, but the decrease speed of this kind of descending lifeline is difficult to control, and gear is after long storage time, easily, because corrosion etc. are former thereby work is not good, affect the normal use of descending lifeline.
Summary of the invention
The object of the invention is to propose a kind of simple in structure, practical bicavate descending lifeline.
Bicavate descending lifeline of the present invention comprises support, bent axle, connecting rod and the cylinder body that piston is housed, the piston rod of described piston is through one end end wall of cylinder body, between described piston rod and the end wall of cylinder body, be movable sealing, described piston is separated into the first cavity and the second cavity by cylinder interior; Described bent axle and cylinder body are all installed on support, and one end of bent axle is wound with landing band; The little head end of described connecting rod is connected with the piston rod of piston by piston pin, and the stub end of connecting rod is connected with the rod journal of bent axle by the connecting-rod bearing; Described cylinder body is provided with the pipeline that is communicated with the first cavity and the second cavity, and described pipeline is provided with valve.
In use, first the free end of landing band is fixed on skyscraper, then by user and support binding, when user falls from eminence, landing band will be stretched, and band dynamic crankshaft rotates, and bent axle can drive piston to move reciprocatingly by connecting rod while rotating.Owing to being all closed with certain gas in the first cavity of cylinder body and the second cavity, when moving reciprocatingly, piston will periodically compress the gas of the first cavity and the second cavity, in this process, must overcome the resistance of gas, therefore can hinder piston moves back and forth rapidly, also just hindered bent axle quick rotation, thereby reduced the decrease speed of support, realized slow object of falling.Because the confining gas in the first cavity and the second cavity is more, can provide larger resistance for bent axle.
In addition, by valve, can change the gas communication speed between the first cavity and the second cavity, will inevitably change like this resistance of cylinder body inner sealing gas to reciprocating motion of the pistons, change the decrease speed of support, so just realize the object that regulates decrease speed.
Further, in described the first cavity and the second cavity, be filled with liquid, because the compressibility of liquid is weaker than gas far away, therefore can be for bent axle provides larger resistance, thus the low speed of realizing descending lifeline declines.
Further, the cylinder wall of described cylinder body is provided with guide frame, and described landing band, through described guide frame, can lead to landing band like this, reduce the shaking degree of decline process medium-height trestle, and can reduce landing band and be wrapped in the possibility on support.
Further, described support is provided with hook, so that the binding of user and support.
Further, the cylinder wall of described cylinder body is provided with fin, when as early as possible by reciprocating motion of the pistons and the dissipation of heat that produced of cylinder body casing wall friction fall, thereby guarantee the sealing property between piston and cylinder body casing wall, the reliability of raising descending lifeline.
Bicavate descending lifeline of the present invention is simple in structure, more durable and reliable with respect to the descending lifeline of traditional gear principle, and slow reduction of speed degree is adjustable, very easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of bicavate descending lifeline of the present invention.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle etc.
Embodiment 1:
As shown in Figure 1, the bicavate descending lifeline of the present embodiment comprises support 1, bent axle 2, the connecting rod 3 of frame-type and the cylinder body 5 that piston 4 is housed, piston 4 bars of piston 4 are through one end end wall of cylinder body 5, between described piston 4 bars and the end wall of cylinder body 5, be movable sealing, described piston 4 becomes the first cavity 51 and the second cavity 52 by cylinder body 5 interior separations; Described cylinder body 5 is installed on the top of support 1, and bent axle 2 is installed on the bottom of support 1, and one end of bent axle 2 is wound with landing and is with 6; The little head end of described connecting rod 3 is connected with piston 4 by piston pin 7, and the stub end of connecting rod 3 is connected with the rod journal of bent axle 2 by the connecting-rod bearing 8 downwards; Cylinder body 5 is provided with the pipeline 9 that is communicated with the first cavity 51 and the second cavity 52, and described pipeline 9 is provided with valve 10; In the first cavity 51 and the second cavity 52, be filled with liquid.
The cylinder wall of cylinder body 5 is provided with guide frame 11, and described landing is with 6 through described guide frame 11, can be with 6 to lead to landing like this, reduces the shaking degree of decline process medium-height trestle 1, and can reduce landing with 6 possibilities that are wrapped on support 1.
The bottom of support 1 is provided with hook 12, so that the binding of user and support 1.
The cylinder wall of cylinder body 5 is provided with fin (not drawing in the drawings fin), fall with the cylinder body 5 casing walls dissipation of heat being produced that rubs when as early as possible piston 4 being moved back and forth, thereby guarantee the sealing property between piston 4 and cylinder body 5 casing walls, improve the reliability of descending lifeline.
In use, first landing is fixed on skyscraper with 6 free end, then by user and support 1 binding, when user falls from eminence, landing is with 6 will be stretched, and band dynamic crankshaft 2 rotates, and bent axle 2 can drive pistons 4 move reciprocatingly by connecting rod 3 while rotating.Because the first cavity 51 and the interior filling of the second cavity 52 have liquid, when moving reciprocatingly, piston 4 will periodically compress the liquid in the first cavity 51 and the second cavity 52, in this process, must overcome the resistance of liquid, therefore can hinder piston 4 moves back and forth rapidly, also bent axle 2 quick rotation have just been hindered, thereby reduced the decrease speed of support 1, realized slow object of falling.Because the sealing liquid in the first cavity 51 and the second cavity 52 is more, the compressibility of liquid is poor, can provide larger resistance for bent axle 2.
By valve 10, can change the liquid communication speed between the first cavity 51 and the second cavity 52, will inevitably change like this cylinder body 5 inner sealing liquid to the reciprocating resistance of piston 4, change the decrease speed of support 1, so just realized the object that regulates decrease speed.
If user's body weight is lighter, the situation that the body weight that may occur user cannot drive the bent axle 2 of descending lifeline to rotate, as long as now open valve 10, makes the liquid communication between the first cavity 51 and the second cavity 52 smooth and easy, can normally use.
Claims (5)
1. a bicavate descending lifeline, it is characterized in that comprising support, bent axle, connecting rod and the cylinder body that piston is housed, the piston rod of described piston is through one end end wall of cylinder body, between described piston rod and the end wall of cylinder body, be movable sealing, described piston is separated into the first cavity and the second cavity by cylinder interior; Described bent axle and cylinder body are all installed on support, and one end of bent axle is wound with landing band; The little head end of described connecting rod is connected with the piston rod of piston by piston pin, and the stub end of connecting rod is connected with the rod journal of bent axle by the connecting-rod bearing; Described cylinder body is provided with the pipeline that is communicated with the first cavity and the second cavity, and described pipeline is provided with valve.
2. bicavate descending lifeline according to claim 1, is characterized in that being filled with liquid in described the first cavity and the second cavity.
3. bicavate descending lifeline according to claim 1 and 2, is characterized in that the cylinder wall of described cylinder body is provided with guide frame, and described landing band is through described guide frame.
4. bicavate descending lifeline according to claim 3, is characterized in that the cylinder wall of described cylinder body is provided with fin.
5. bicavate descending lifeline according to claim 3, is characterized in that described support is provided with hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704655.2A CN103656885A (en) | 2013-12-20 | 2013-12-20 | Double-cavity descent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310704655.2A CN103656885A (en) | 2013-12-20 | 2013-12-20 | Double-cavity descent control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103656885A true CN103656885A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310704655.2A Pending CN103656885A (en) | 2013-12-20 | 2013-12-20 | Double-cavity descent control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103656885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355263A (en) * | 2018-04-19 | 2018-08-03 | 浙江工业大学 | Escape packet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006202Y (en) * | 2007-02-16 | 2008-01-16 | 郭伟明 | Hydraulic damp fall-slowing apparatus |
| CN102889328A (en) * | 2011-07-20 | 2013-01-23 | 北京巨国科技有限公司 | Piston type damping mechanism |
| CN103041518A (en) * | 2013-01-18 | 2013-04-17 | 陈喆 | Safe escaper for high building |
| CN203750037U (en) * | 2013-12-20 | 2014-08-06 | 陈洪灿 | Double-cavity descent control device |
-
2013
- 2013-12-20 CN CN201310704655.2A patent/CN103656885A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006202Y (en) * | 2007-02-16 | 2008-01-16 | 郭伟明 | Hydraulic damp fall-slowing apparatus |
| CN102889328A (en) * | 2011-07-20 | 2013-01-23 | 北京巨国科技有限公司 | Piston type damping mechanism |
| CN103041518A (en) * | 2013-01-18 | 2013-04-17 | 陈喆 | Safe escaper for high building |
| CN203750037U (en) * | 2013-12-20 | 2014-08-06 | 陈洪灿 | Double-cavity descent control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355263A (en) * | 2018-04-19 | 2018-08-03 | 浙江工业大学 | Escape packet |
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| PB01 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |