CN201781636U - Insulation sleeve for improved electrical heated tube - Google Patents
Insulation sleeve for improved electrical heated tube Download PDFInfo
- Publication number
- CN201781636U CN201781636U CN2010202999510U CN201020299951U CN201781636U CN 201781636 U CN201781636 U CN 201781636U CN 2010202999510 U CN2010202999510 U CN 2010202999510U CN 201020299951 U CN201020299951 U CN 201020299951U CN 201781636 U CN201781636 U CN 201781636U
- Authority
- CN
- China
- Prior art keywords
- insulating case
- fuse
- outer tube
- insulation sleeve
- heating wire
- 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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Abstract
The utility model discloses an insulation sleeve for an improved electrical heated tube, comprising an outer tube, a heating wire and a fuse, wherein the heating wire and the fuse are positioned in the outer tube, an internal lead-out rod is arranged between the heating wire and one end of the fuse, and the other end of the fuse is connected with an external lead-out rod; the outside of the fuse is provided with an insulation sleeve, and two ends of the insulation sleeve are respectively provided with a circumferential boss; a plurality of axial raised ribs are arranged between the two bosses and are circumferentially distributed along the insulation sleeve at intervals; a groove for containing the extruded raised ribs and two bosses is formed between two adjacent raises ribs; and the external periphery surfaces of the two bosses both tightly abut with the inner wall face of the outer tube. The insulation sleeve in the improved electrical heated tube can position the internal lead-out rod in the middle, i.e. position the heating wire in the middle; in the process of pipe contraction, a plurality of raised ribs on the outer wall of the insulation sleeve and bosses on the end parts can be filled in a lateral groove, so that the insulation sleeve has small possibility of drawing, thus effectively protecting the fuse.
Description
Technical field
The utility model relates to the electric heating element field, more particularly, relates to a kind of follow-on electrothermal tube insulating case.
Background technology
The electrothermal tube that has fuse is used widely, fuse outside in such electrothermal tube is arranged with insulating case, in the conventional art, these insulating cases mostly are an end and closely cooperate mutually with the inwall of electrothermal tube, like this, because insulating case has certain length, just make insulating case firmly not to be arranged in the outer tube, and traditional insulating case is the cylinder of rule, in the process of the draw, can make insulating case produce stretching along with the stretching of outer tube, very likely cause fuse to be broken, reduced rate of finished products.
The utility model content
The purpose of this utility model provides a kind of modified model electrothermal tube insulating case, its be provided be beneficial to these insulating case two ends stable be fixed on boss in the electrothermal tube, this insulating case can also be assisted location placed in the middle heating wire, and convex tendon and boss can be filled in the groove on next door because of pressurized when the draw.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of follow-on electrothermal tube insulating case, this electrothermal tube comprises outer tube, be positioned at the heating wire of described outer tube, fuse, described fuse outside is provided with insulating case, the both ends of this insulating case are provided with circumferential boss respectively, be provided with many axial convex tendons between two described boss, many described convex tendons are circumferentially spaced apart along this insulating case, be formed for accommodating the described convex tendon after being extruded and the groove of two described boss between two adjacent described convex tendons, the outer peripheral face of two described boss all offsets with the internal face of described outer tube.
Preferably, described outer tube is provided with the circumferential indenture to the pipe sunken inside, and an end of described insulating case is clamped on the outside of described indenture.
Preferably, an end of eduction rod in described heating wire partly is wrapped in, the other end of eduction rod and an end of described fuse are fixedly connected in described, the other end of described fuse is connected in the external circuit by outer eduction rod, the end that is connected with described fuse on the eduction rod in described is provided with circumferential outward extending convex edge, one end of described insulating case is provided with the bayonet socket that an internal diameter dwindles, this bayonet socket is clamped on the convex edge of described interior eduction rod, and described fuse is arranged in described insulating case fully.
The beneficial effects of the utility model are: the both ends of the insulating case that is provided with in the modified model electrothermal tube of the present utility model all can closely cooperate with the outer tube of electrothermal tube, make this insulating case firmly be arranged on and promptly make the axis of heating wire overlap in the outer tube, improve the electric property of electrothermal tube with the axis of outer tube; The outer wall of this insulating case is provided with a plurality of convex tendons; convex tendon in the process of the draw on the insulating case and boss can be filled in the groove between the adjacent convex tendon and be difficult for producing along with the stretching of outer tube stretching; protected fuse effectively, effective has improved rate of finished products.
Description of drawings
Accompanying drawing 1 is the structural representation of electrothermal tube of the present utility model;
Accompanying drawing 2 is the longitudinal sectional view of follow-on electrothermal tube of the present utility model with insulating case;
Accompanying drawing 3 is the transverse sectional view of follow-on electrothermal tube of the present utility model with insulating case;
Accompanying drawing 4 is insulating case of the present utility model and the close-fitting schematic diagram of outer tube (not shown heating wire and height
The temperature magnesia powder).
In the accompanying drawing: 1, outer tube; 2, insulating case; 3, bayonet socket; 4, boss; 5, convex tendon; 6, indenture;
7, interior eduction rod; 8, fuse; 9, outer eduction rod.
Embodiment
Below in conjunction with embodiment shown in the drawings the technical solution of the utility model is done following detailed description the in detail:
As shown in Figure 1, electrothermal tube of the present utility model comprise outer tube 1, be positioned at the heating wire of described outer tube 1, fuse 8, be filled with high-temperature oxydation magnesium powder between outer tube 1 and the heating wire, eduction rod 6 in being provided with between one end of heating wire and fuse 8, an end that is connected with fuse 8 on the interior eduction rod 6 has a convex edge, the other end of fuse 8 is connected with outer eduction rod 9, fuse 8 outer cover are provided with insulating case 2, insulating case 2 is that the cylinder and an end of a hollow is provided with the bayonet socket 3 that internal diameter dwindles, the both ends of insulating case 2 are provided with the circumferential boss 4 of equal diameters respectively, shown in accompanying drawing 2 and accompanying drawing 3, be provided with many axial convex tendons 5 between two boss 4, form groove between the adjacent convex tendon 5, as shown in Figure 4, the outer peripheral face of two boss 4 all offsets with the internal face of outer tube 1, on the convex edge in bayonet socket on the insulating case 2 is clamped on the eduction rod 6, and make fuse 8 be positioned at insulating case 2 fully, outer tube 1 is provided with the circumferential indenture 6 to the pipe sunken inside, and the periphery wall that insulating case 2 is provided with the bayonet socket place is clamped on indenture 6 places.
The outer peripheral face of the boss 4 at the two ends of the insulating case 2 in this modified model electrothermal tube all closely cooperates mutually with the inwall of outer tube 1, make the axis of interior eduction rod 7 at bayonet socket 3 places be clamped on insulating case 2 to coincide with the axis of outer tube, thus location better placed in the middle heating wire; When outer tube 1 was carried out the draw, two boss 4 and many convex tendons 5 can be filled in the groove between two the adjacent convex tendon on the insulating case 2, thereby; make this insulating case can not produce the phenomenon of stretching; like this, just protect fuse 8 to make it can not broken effectively, thereby improved rate of finished products.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (3)
1. follow-on electrothermal tube insulating case, this electrothermal tube comprises outer tube, be positioned at the heating wire of described outer tube, fuse, described fuse outside is provided with insulating case, this insulating case is characterised in that: the both ends of described insulating case are provided with circumferential boss respectively, be provided with many axial convex tendons between two described boss, many described convex tendons are circumferentially spaced apart along this insulating case, be formed for accommodating the described convex tendon after being extruded and the groove of two described boss between two adjacent described convex tendons, the outer peripheral face of two described boss all offsets with the internal face of described outer tube.
2. a kind of follow-on electrothermal tube insulating case according to claim 1 is characterized in that: described outer tube is provided with the circumferential indenture to the pipe sunken inside, and an end of described insulating case is clamped on the outside of described indenture.
3. a kind of follow-on electrothermal tube insulating case according to claim 1, it is characterized in that: an end of eduction rod in described heating wire partly is wrapped in, the other end of eduction rod and an end of described fuse are fixedly connected in described, the other end of described fuse is connected in the external circuit by outer eduction rod, the end that is connected with described fuse on the eduction rod in described is provided with circumferential outward extending convex edge, one end of described insulating case is provided with the bayonet socket that an internal diameter dwindles, this bayonet socket is clamped on the convex edge of described interior eduction rod, and described fuse is arranged in described insulating case fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202999510U CN201781636U (en) | 2010-08-23 | 2010-08-23 | Insulation sleeve for improved electrical heated tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202999510U CN201781636U (en) | 2010-08-23 | 2010-08-23 | Insulation sleeve for improved electrical heated tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781636U true CN201781636U (en) | 2011-03-30 |
Family
ID=43794834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202999510U Expired - Fee Related CN201781636U (en) | 2010-08-23 | 2010-08-23 | Insulation sleeve for improved electrical heated tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200673A (en) * | 2018-01-24 | 2018-06-22 | 江苏裕兴电器有限公司 | A kind of high pressure resistant electric heater of low temperature and its manufacturing method |
-
2010
- 2010-08-23 CN CN2010202999510U patent/CN201781636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200673A (en) * | 2018-01-24 | 2018-06-22 | 江苏裕兴电器有限公司 | A kind of high pressure resistant electric heater of low temperature and its manufacturing method |
| CN108200673B (en) * | 2018-01-24 | 2024-03-26 | 江苏裕兴电器有限公司 | Low-temperature high-pressure-resistant electric heater and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20120823 |