CN201118336Y - Hollow axis structure for waterproof seal - Google Patents
Hollow axis structure for waterproof seal Download PDFInfo
- Publication number
- CN201118336Y CN201118336Y CNU2007200757869U CN200720075786U CN201118336Y CN 201118336 Y CN201118336 Y CN 201118336Y CN U2007200757869 U CNU2007200757869 U CN U2007200757869U CN 200720075786 U CN200720075786 U CN 200720075786U CN 201118336 Y CN201118336 Y CN 201118336Y
- Authority
- CN
- China
- Prior art keywords
- quill shaft
- lead
- wire
- interference fit
- thermally shrinkable
- 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.)
- Expired - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a waterproof and airproof quill shaft, comprising a quill shaft which is provided with a down-lead inlet, a down-lead outlet, and a down-lead which threads through the quill shaft; a thermally shrinkable pipe is arranged at the down-lead inlet in the inner cavity of the quill shaft; a gasket ring is arranged at the port of the thermally shrinkable pipe and is hitched on the down-lead; the gasket ring and the quill shaft are in interference fit, and the gasket ring and the thermally shrinkable pipe are also in interference fit. The technical effects of the utility model lie in that when the down-lead inlet on the quill shaft is heated, the thermally shrinkable pipe shrinks to fix the gasket ring on the down-lead to prevent the down-lead from shifting. Since the thermally shrinkable pipe and the quill shaft are in interference fit, the thermally shrinkable pipe can maintain the tight interference fit with the quill shaft after the thermally shrinkable pipe is heated, and sealant can be filled in the gap between the down-lead inlet on the quill shaft and the down-lead. Adopting double seals, the quill shaft ensures that water can not enter the quill shaft.
Description
Technical field
The utility model relates to a kind of quill shaft structure, refers to a kind of waterproof quill shaft structure that power line and holding wire are passed of being used for especially.
Background technology
In existing technology; the quill shaft structure that is used to pass lead-in wire is such: as shown in Figure 1; line outlet 3 place's points envelope 703 glue at quill shaft 1; because of 4 angles that a bending arranged at line outlet 3 places of quill shaft 1 that go between; can not make sealing fully; and the lead-in wire that point is honored as a queen is shifted through regular meeting; its shortcoming is that in use quill shaft is intake easily, advances dust and other impurities, influences the use of quill shaft; increased failure rate; especially when application of motor, water enters motor internal from quill shaft, causes the damage of motor thus; according to statistics, water inlet is the main cause that causes electrical machinery life to reduce.
The utility model content
The purpose of the utility model content provides a kind of effectively waterproof sealing at the deficiencies in the prior art, and the waterproof sealing quill shaft structure of the displacement that prevents to go between.
In order to solve the problems of the technologies described above, scheme of the present utility model is as follows:
A kind of waterproof sealing quill shaft structure, comprise that one is provided with go between quill shaft that enters the mouth and export and the lead-in wire that passes quill shaft, the lead-in wire porch is provided with a heat-shrink tube in the described quill shaft inner chamber, the built-in sealing ring in the port of heat-shrink tube, the sealing ring sealing shroud is located on the lead-in wire, described sealed tube and quill shaft are interference fit, and described sealing ring and heat-shrink tube are interference fit.
Further, be filled with fluid sealant at the quill shaft of lead-in wire porch and the space between the lead-in wire.
Technique effect of the present utility model is: after lead-in wire passes in quill shaft, because quill shaft lead-in wire porch inner chamber is provided with the heat-shrink tube of interference fit, the heat-shrink tube port is provided with the sealing ring of interference fit equally, the sealing ring sealing shroud is located on the lead-in wire, the lead-in wire porch of heating quill shaft makes heat-shrink tube be subjected to thermal contraction, so like this, heat-shrink tube will be fixed on sealing ring on the lead-in wire firmly, and lead-in wire is shifted.Because heat-shrink tube and quill shaft are interference fit, so heat-shrink tube substantially still can keep closely cooperating after heating with quill shaft, also can the quill shaft of lead-in wire porch with go between between the space filling with sealant, adopt above-mentioned double containment after, can guarantee that quill shaft no longer intakes.
Description of drawings
Fig. 1 passes the structural representation of quill shaft for lead-in wire in the prior art.
Fig. 2 is the structural representation of quill shaft of the present utility model.
The drawing reference numeral explanation:
The 1-quill shaft 2-inlet that goes between
3-lead outlet 4-lead-in wire
5-heat-shrink tube 6-O shape sealing ring
The 7-fluid sealant
Embodiment
As shown in Figure 2, quill shaft 1 is provided with lead-in wire inlet 2 and lead outlet 3, be provided with in quill shaft 1 lead-in wire inlet 2 places one with the heat-shrink tube 5 of quill shaft 1 interference fit, the sealing ring of port of heat-shrink tube 5 built-in one and heat-shrink tube 5 interference fit, the sealing ring sealing shroud is located on the lead-in wire 4, sealing ring adopts the O RunddichtringO 6 of rubber mass, the lead-in wire 4 lead-in wire porch 2 from quill shaft 1 penetrate, pass from lead outlet 3, heat-shrink tube 5 mainly plays the effect of location, quill shaft 1 when heating lead-in wire porch 2, heat-shrink tube 5 is subjected to thermal contraction, and like this, heat-shrink tube 5 will be fixed on O RunddichtringO 6 on the lead-in wire 4 firmly, at the quill shaft 1 of lead-in wire porch 2 and the space filling with sealant 7 between the lead-in wire 4, sealing is more insured again.
Claims (2)
1, a kind of waterproof sealing quill shaft structure, comprise that one is provided with go between quill shaft that enters the mouth and export and the lead-in wire that passes quill shaft, it is characterized in that: the lead-in wire porch is provided with a heat-shrink tube in the described quill shaft inner chamber, the built-in sealing ring in the port of heat-shrink tube, the sealing ring sealing shroud is located on the lead-in wire, described sealed tube and quill shaft are interference fit, and described sealing ring and heat-shrink tube are interference fit.
2, waterproof sealing quill shaft structure according to claim 1 is characterized in that: be filled with fluid sealant at the quill shaft of lead-in wire porch and the space between the lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200757869U CN201118336Y (en) | 2007-11-20 | 2007-11-20 | Hollow axis structure for waterproof seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200757869U CN201118336Y (en) | 2007-11-20 | 2007-11-20 | Hollow axis structure for waterproof seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118336Y true CN201118336Y (en) | 2008-09-17 |
Family
ID=39992927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200757869U Expired - Fee Related CN201118336Y (en) | 2007-11-20 | 2007-11-20 | Hollow axis structure for waterproof seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118336Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231580A (en) * | 2011-06-28 | 2011-11-02 | 无锡锡山特种风机有限公司 | External rotor motor capable of raising protection grade |
| CN102857019A (en) * | 2011-06-27 | 2013-01-02 | 日本电产三协株式会社 | Electric motor |
| CN106357074A (en) * | 2016-09-28 | 2017-01-25 | 深圳市雅腾电机有限公司 | Hub motor for robot walking system |
-
2007
- 2007-11-20 CN CNU2007200757869U patent/CN201118336Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857019A (en) * | 2011-06-27 | 2013-01-02 | 日本电产三协株式会社 | Electric motor |
| CN102857019B (en) * | 2011-06-27 | 2015-12-09 | 日本电产三协株式会社 | Motor |
| CN102231580A (en) * | 2011-06-28 | 2011-11-02 | 无锡锡山特种风机有限公司 | External rotor motor capable of raising protection grade |
| CN106357074A (en) * | 2016-09-28 | 2017-01-25 | 深圳市雅腾电机有限公司 | Hub motor for robot walking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |