CN205716118U - A kind of helical bellows - Google Patents
A kind of helical bellows Download PDFInfo
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- CN205716118U CN205716118U CN201520913664.7U CN201520913664U CN205716118U CN 205716118 U CN205716118 U CN 205716118U CN 201520913664 U CN201520913664 U CN 201520913664U CN 205716118 U CN205716118 U CN 205716118U
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- pipe
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- annular groove
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Abstract
nullThe utility model discloses a kind of helical bellows，Including body，The two ends of body are connected to ring-type carrier and Plug Division，The outer wall of Plug Division is provided with first annular groove，First annular sealing ring it is socketed with in first annular groove，The leading section of Plug Division is provided with the second annular groove，The second O-ring seal it is provided with in second annular groove，Carrier includes the upper surface that can coordinate and the side end face that can coordinate with the second O-ring seal grafting with first annular sealing ring grafting，Body includes that internal layer PE manages、Undulatory outer layer PE pipe and the corrugated steel band being arranged between internal layer PE pipe and outer layer PE pipe，It is provided with PE inserts in the cavity formed between internal layer PE pipe and outer layer PE pipe，Reinforcement reinforcing bar uniformly it is laid with in PE inserts，At the wave trough position of outer layer PE pipe, ring-wound has external reinforcing ribs.This helical bellows simple in construction, installation effectiveness height, good airproof performance, ring stiffness are high.
Description
Technical field
This utility model relates to pipe technology field, specifically provides a kind of helical bellows.
Background technology
The connection of existing helical bellows is main in the following way: directly docked the termination of two helical bellowses, after docking, Electric thermal smelting belt is wrapped up outside seam crossing, pass through Electric thermal smelting belt, two helical bellowses are integrally connected, this mode need to carry out sweat soldering, inefficiency at the construction field (site), and labor strength is big, additionally, if carrying out sweat soldering under the execution conditions of bad environments, welding quality is difficult to ensure that, sealing is poor, Seepage easily occurs, it addition, the crushing resistance of existing corrugated tube is poor, cause its service life short.
Therefore, how existing helical bellows is carried out the improvement in structure, to improve its in-site installation efficiency, it is ensured that the sealing after installation, improve its ring stiffness simultaneously, become people's problem demanding prompt solution.
Summary of the invention
In consideration of it, the purpose of this utility model is to provide a kind of helical bellows, to solve the problems such as existing helical bellows installation effectiveness is low, sealing is poor, ring stiffness is low.
nullThe technical scheme that this utility model provides is: a kind of helical bellows，Including body，The two ends of body are connected to ring-type carrier and Plug Division，The outer wall of Plug Division is provided with first annular groove，First annular sealing ring it is socketed with in first annular groove，The leading section of Plug Division is provided with the second annular groove，The second O-ring seal it is provided with in second annular groove，Carrier includes the upper surface that can coordinate and the side end face that can coordinate with the second O-ring seal grafting with first annular sealing ring grafting，Body includes that internal layer PE manages、Undulatory outer layer PE pipe and the corrugated steel band being arranged between internal layer PE pipe and outer layer PE pipe，It is provided with PE inserts in the cavity formed between internal layer PE pipe and outer layer PE pipe，Reinforcement reinforcing bar uniformly it is laid with in PE inserts，At the wave trough position of outer layer PE pipe, ring-wound has external reinforcing ribs，The inner wall even distribution of internal layer PE pipe has shaft orientation reinforcing rib.
Preferably, corrugated steel strip surface is compound between outer layer PE pipe and internal layer PE pipe by adhering resin hot melt.
Further preferably, the height of external reinforcing ribs is less than the height at outer layer PE tube wave peak.
Further preferably, shaft orientation reinforcing rib is three groups.
nullThe helical bellows that this utility model provides，Its two ends are provided with carrier and the Plug Division of pluggable cooperation，When needing to connect two helical bellowses at the construction field (site)，As long as the Plug Division of a corrugated tube to be inserted the carrier of another corrugated tube，When carrier and Plug Division grafting，First annular sealing ring closely cooperates with the upper surface of carrier，Second O-ring seal closely cooperates with the side end face of carrier，Realize the sealing between helical bellows，Additionally，By managing at internal layer PE, corrugated steel band is set between outer layer PE pipe、In the cavity formed between internal layer PE pipe and outer layer PE pipe, PE inserts is set、Uniformly lay in PE inserts and strengthen reinforcing bar、Ring-wound external reinforcing ribs at the wave trough position of outer layer PE pipe、Inner wall even distribution shaft orientation reinforcing rib at internal layer PE pipe，The ring stiffness of corrugated tube can be improved.
The helical bellows that this utility model provides, simple in construction, installation effectiveness height, good airproof performance, ring stiffness are high.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment:
Fig. 1 is the profile of helical bellows.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is further explained, but does not limit to this utility model.
nullAs shown in Figure 1，This utility model provides a kind of helical bellows，Including body 1，The two ends of body 1 are connected to ring-type carrier 2 and Plug Division 3，The outer wall of Plug Division 3 is provided with first annular groove 31，First annular sealing ring (not shown) it is socketed with in first annular groove 31，The leading section of Plug Division 3 is provided with the second annular groove 32，The second O-ring seal (not shown) it is provided with in second annular groove 32，Carrier 2 includes the upper surface that can coordinate and the side end face that can coordinate with the second O-ring seal grafting with first annular sealing ring grafting，Body 1 includes internal layer PE pipe 11、Undulatory outer layer PE pipe 12 and the corrugated steel band being arranged between internal layer PE pipe 11 and outer layer PE pipe 12，It is provided with PE inserts 14 in the cavity formed between internal layer PE pipe 11 and outer layer PE pipe 12，Reinforcement reinforcing bar 15 uniformly it is laid with in PE inserts 14，At the wave trough position of outer layer PE pipe 12, ring-wound has external reinforcing ribs 16，The inner wall even distribution of internal layer PE pipe 11 has shaft orientation reinforcing rib 17，Preferably，Shaft orientation reinforcing rib 17 is three groups.
This helical bellows, its two ends are provided with carrier and the Plug Division of pluggable cooperation, when needing to connect two helical bellowses at the construction field (site), as long as the Plug Division of a corrugated tube to be inserted the carrier of another corrugated tube, when carrier and Plug Division grafting, first annular sealing ring closely cooperates with the upper surface of carrier, second O-ring seal closely cooperates with the side end face of carrier, realize the sealing between helical bellows, additionally, by managing at internal layer PE, corrugated steel band is set between outer layer PE pipe, in the cavity formed between internal layer PE pipe and outer layer PE pipe, PE inserts is set, uniformly lay in PE inserts and strengthen ferrum muscle, ring-wound external reinforcing ribs at the wave trough position of outer layer PE pipe, inner wall even distribution shaft orientation reinforcing rib at internal layer PE pipe, the ring stiffness of corrugated tube can be improved.
Wherein, corrugated steel strip surface is compound between outer layer PE pipe 12 and internal layer PE pipe 11 by adhering resin hot melt.
Wherein, the height of external reinforcing ribs 16 is less than the height of outer layer PE pipe 12 crest.
Detailed description of the invention of the present utility model is to carry out writing according to the mode gone forward one by one, and highlights the difference of each embodiment, and its similar portion can be with cross-reference.
Above in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from this utility model objective, various changes can be made.
Claims (4)
- null1. a helical bellows，It is characterized in that，Including body (1)，The two ends of body (1) are connected to ring-type carrier (2) and Plug Division (3)，The outer wall of Plug Division (3) is provided with first annular groove (31)，First annular groove is socketed with first annular sealing ring in (31)，The leading section of Plug Division (3) is provided with the second annular groove (32)，Second annular groove is provided with the second O-ring seal in (32)，Carrier (2) includes the upper surface that can coordinate and the side end face that can coordinate with the second O-ring seal grafting with first annular sealing ring grafting，Body (1) includes that internal layer PE manages (11)、Undulatory outer layer PE pipe (12) and the corrugated steel band being arranged between internal layer PE pipe (11) and outer layer PE pipe (12)，It is provided with PE inserts (14) in the cavity formed between internal layer PE pipe (11) and outer layer PE pipe (12)，Reinforcement reinforcing bar (15) uniformly it is laid with in PE inserts (14)，At the wave trough position of outer layer PE pipe (12), ring-wound has external reinforcing ribs (16)，The inner wall even distribution of internal layer PE pipe (11) has shaft orientation reinforcing rib (17).
- 2. according to the helical bellows described in claim 1, it is characterised in that: corrugated steel strip surface is compound between outer layer PE pipe (12) and internal layer PE pipe (11) by adhering resin hot melt.
- 3. according to the helical bellows described in claim 1, it is characterised in that: the height of external reinforcing ribs (16) is less than the height of outer layer PE pipe (12) crest.
- 4. according to the helical bellows according to any one of claims 1 to 3, it is characterised in that: shaft orientation reinforcing rib (17) is three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913664.7U CN205716118U (en) | 2015-11-17 | 2015-11-17 | A kind of helical bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913664.7U CN205716118U (en) | 2015-11-17 | 2015-11-17 | A kind of helical bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205716118U true CN205716118U (en) | 2016-11-23 |
Family
ID=57333552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520913664.7U Active CN205716118U (en) | 2015-11-17 | 2015-11-17 | A kind of helical bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205716118U (en) |
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2015
- 2015-11-17 CN CN201520913664.7U patent/CN205716118U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |