CN103244608A - Rack chain for lifesaving - Google Patents
Rack chain for lifesaving Download PDFInfo
- Publication number
- CN103244608A CN103244608A CN2012100301048A CN201210030104A CN103244608A CN 103244608 A CN103244608 A CN 103244608A CN 2012100301048 A CN2012100301048 A CN 2012100301048A CN 201210030104 A CN201210030104 A CN 201210030104A CN 103244608 A CN103244608 A CN 103244608A
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- China
- Prior art keywords
- tooth
- chain
- lifesaving
- teeth
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a rack chain for lifesaving. The rack chain is of a 4*4 leaf chain structure. One edge of each chain piece is provided with a plurality of teeth, and circular pitches of the teeth are added to form pitch of rack chain. Parameters such as tooth height, circular pitch and pressure angle of the rack chain are consistent with technical parameters in module regulation of an involute gear, but the tooth shapes between each two teeth at tooth crest and tooth root are arc-shaped to facilitate production and tooth rigidity improvement.
Description
(1) technical field
The present invention is a kind of lifesaving tooth bar chain, belongs to the fire-extinguishing and lifesaving parts.
(2) background technique
Human body load-bearing component in the present light-duty fire disaster escaping equipment in the world all adopts the rope class of nonmetallic material and wire rope to be used for the carrying human body weight, because the surface of rope base part is cylindric, be difficult for fixed object, only can be at the end fixed object of rope, in fire lifesaving process, rope class buoyant apparatus can only solve single escape problem at every turn, and the escape number in the unit time can not be promoted always.
The objective of the invention is to design the tooth tooth bar chain identical with the basic parameter of involute master gear modulus on a kind of leaf chain, cooperate with a kind of new type speed reducer, solve a fire colony escape difficult problem.
(3) summary of the invention
For achieving the above object, the structure of 4 * 4 leaf chains is adopted in a kind of lifesaving of the present invention with the tooth bar chain, but the design of the one side on every chain sheet has a plurality of teeth, the circular pitch addition of a plurality of teeth, be the pitch of this tooth bar chain, technical parameter unanimity in the even involute gear modulus regulation of parameters such as the tooth depth on the chain, circular pitch, pressure angle adopts circular shape but spare between the tooth top of profile of tooth and tooth root place tooth and the tooth, is convenient to produce and improve the intensity of tooth.
This tooth bar chain has adopted chain structure, and it is convenient to twine folding and unfolding, has adopted the shape of tooth bar again, has then finished the function that multiple spot carries on a chain.
(4) description of drawings
Fig. 1 is the tooth bar chain structure outline drawing of a kind of lifesaving of the present invention.
A kind of lifesaving shown in Figure 1 is made up of chain joint (1), outer chain sheet (2), inner chain sheet (3), joining shaft (4) with the tooth bar chain, interior outer chain sheet has tooth (5) on one side, interior outer chain sheet middle part has the light hole (6) of slowing down, technical parameter unanimity in the even involute gear modulus regulation of parameters such as the tooth depth of tooth (5), circular pitch, pressure angle, but the tooth top of profile of tooth (a1) and tooth root (a2) are located the even circular shape that adopts between tooth and the tooth, the circular pitch addition of a plurality of teeth is the pitch (t) of this tooth bar chain.
Claims (1)
1. a lifesaving is made up of chain joint (1), outer chain sheet (2), inner chain sheet (3), joining shaft (4) with the tooth bar chain, it is characterized in that: on one side interior outer chain sheet has tooth (5), interior outer chain sheet middle part has the light hole (6) of slowing down, technical parameter unanimity in the even involute gear modulus regulation of parameters such as the tooth depth of tooth (5), circular pitch, pressure angle, but the tooth top of profile of tooth (a1) and tooth root (a2) are located the even circular shape that adopts between tooth and the tooth, the circular pitch addition of a plurality of teeth is the pitch (t) of this tooth bar chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100301048A CN103244608A (en) | 2012-02-10 | 2012-02-10 | Rack chain for lifesaving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100301048A CN103244608A (en) | 2012-02-10 | 2012-02-10 | Rack chain for lifesaving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244608A true CN103244608A (en) | 2013-08-14 |
Family
ID=48924357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100301048A Pending CN103244608A (en) | 2012-02-10 | 2012-02-10 | Rack chain for lifesaving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244608A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184348A (en) * | 1994-12-28 | 1996-07-16 | Borg Warner Automot Kk | Silent chain, sprocket for silent chain, and silent chain transmission device |
| CN1379195A (en) * | 2001-04-09 | 2002-11-13 | 薛荣生 | Special drive chain with shaped envelope and relative drive gear |
| US20040138020A1 (en) * | 2002-08-09 | 2004-07-15 | Rexroth Mecman Gmbh | Transport tooth chain with reduced wear on the vertical dimension of its link members |
| CN1712082A (en) * | 2004-06-25 | 2005-12-28 | 连军 | Emergent lifesaving device on high building |
| CN102287483A (en) * | 2011-08-12 | 2011-12-21 | 吉林大学 | Double-pitch time-sharing meshed tooth-shape chain board |
| CN202441807U (en) * | 2012-02-10 | 2012-09-19 | 东莞市万方消防设备有限公司 | Rack chain for lifesaving |
-
2012
- 2012-02-10 CN CN2012100301048A patent/CN103244608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184348A (en) * | 1994-12-28 | 1996-07-16 | Borg Warner Automot Kk | Silent chain, sprocket for silent chain, and silent chain transmission device |
| CN1379195A (en) * | 2001-04-09 | 2002-11-13 | 薛荣生 | Special drive chain with shaped envelope and relative drive gear |
| US20040138020A1 (en) * | 2002-08-09 | 2004-07-15 | Rexroth Mecman Gmbh | Transport tooth chain with reduced wear on the vertical dimension of its link members |
| CN1712082A (en) * | 2004-06-25 | 2005-12-28 | 连军 | Emergent lifesaving device on high building |
| CN102287483A (en) * | 2011-08-12 | 2011-12-21 | 吉林大学 | Double-pitch time-sharing meshed tooth-shape chain board |
| CN202441807U (en) * | 2012-02-10 | 2012-09-19 | 东莞市万方消防设备有限公司 | Rack chain for lifesaving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130814 |