CN203396111U - Smoke outlet crossover coupling for secondary heat exchanger - Google Patents
Smoke outlet crossover coupling for secondary heat exchanger Download PDFInfo
- Publication number
- CN203396111U CN203396111U CN201320359821.5U CN201320359821U CN203396111U CN 203396111 U CN203396111 U CN 203396111U CN 201320359821 U CN201320359821 U CN 201320359821U CN 203396111 U CN203396111 U CN 203396111U
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- CN
- China
- Prior art keywords
- outlet flue
- heat exchanger
- secondary heat
- smoke outlet
- link
- 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 a smoke outlet crossover coupling for a secondary heat exchanger, which comprises a smoke outlet connection end and a smoke discharge pipe connection end, wherein the smoke outlet connection end comprises four connection buckles and a sealing ring installation groove; the upper end of the sealing ring installation groove is provided with a limiting boss; the smoke outlet crossover coupling is of an integrated structure; and the connection buckles are plastic elastic buckles. In the installing process, firstly, a sealing ring is arranged on the smoke outlet crossover coupling in a sleeving mode, and then four connection buckles of the smoke outlet crossover coupling are aligned with the installation position of the secondary heat exchanger and are pressed down, so that connection between the smoke outlet crossover coupling and the secondary heat exchanger can be implemented. The smoke outlet crossover coupling has a simple connection structure and is rapid to install.
Description
Technical field
The utility model relates to condensing heat exchanger technical field, relates in particular to a kind of outlet flue crossover sub for connecting secondary heat exchanger.
Background technology
Secondary heat exchanger is an important device that improves the gas-fired equipment rates of heat exchange such as wall-hung boiler, and it generally comprises secondary heat exchanger housing, and is arranged on and enters mouth, outlet flue on secondary heat exchanger housing, is connected with the backward flowing preventing devices such as smoke exhaust pipe on outlet flue.
Conventionally, smoke exhaust pipe all has the specification of standard, and the outlet flue of secondary heat exchanger exists certain difference according to the difference of gas-fired equipment.For this reason, between secondary heat exchanger outlet flue and smoke exhaust pipe, need to be connected by a crossover sub.At present, it realized common crossover sub by screw thread or screw with being connected mostly of outlet flue, structure relative complex, and not only Mould Machining and production cost are higher, and install more time-consuming.
Utility model content
For the defect existing in prior art, the purpose of this utility model is to provide a kind of simple in structure, low cost of manufacture, outlet flue crossover sub is fast installed.
For reaching above object, the utility model adopts following technical scheme.
A kind of outlet flue crossover sub for secondary heat exchanger, comprise: outlet flue link and smoke exhaust pipe link, it is characterized in that, described outlet flue link comprises that at least two connect buckle and at least one sealing ring mounting groove, are provided with positive stop lug boss in the upper end of sealing ring mounting groove.
As with improvement, described outlet flue link and smoke exhaust pipe link are all the cylindric of hollow, and described connection buckle stretches out and is evenly distributed on outlet flue link from of outlet flue link.Connect being uniformly distributed of buckle, make outlet flue crossover sub and being connected of secondary heat exchanger outlet flue stressed more even, good reliability.
As with improvement, the described outlet flue crossover sub structure that is formed in one, described connection buckle is elasticity of plastics buckle.Connect buckle and adopt plastic material integrated formed structure, processing is simple.
Compared with prior art, a kind of outlet flue crossover sub for secondary heat exchanger that the utility model provides, its beneficial effect is: by least two of the link settings at outlet flue crossover sub, connect buckle and at least one sealing ring mounting groove, and be provided with positive stop lug boss in the upper end of sealing ring mounting groove, during actual installation, after only crossover sub need being put to sealing ring, be tucked in secondary heat exchanger outlet flue, good airproof performance, installation are fast.Meanwhile, because whole outlet flue crossover sub adopts, plastic material is one-body molded, simple in structure, low cost of manufacture.
Accompanying drawing explanation
Figure 1 shows that the outlet flue crossover sub structural representation that the utility model provides;
Figure 2 shows that the upward view of Fig. 1;
Figure 3 shows that the outlet flue crossover sub mounting structure schematic diagram that the utility model provides;
Figure 4 shows that A place enlarged drawing in Fig. 3.
Description of reference numerals:
1, crossover sub, 2, secondary heat exchanger, 3, sealing ring;
11, outlet flue link, 12, smoke exhaust pipe link, 13, positive stop lug boss;
111, connect buckle, 112, sealing ring mounting groove.
The specific embodiment
For further setting forth essence of the present utility model, by reference to the accompanying drawings the specific embodiment of the present utility model is described as follows.
As shown in Figure 1 and Figure 2, a kind of outlet flue crossover sub 1 for secondary heat exchanger that the present embodiment provides, comprise: outlet flue link 11 and smoke exhaust pipe link 12, it is characterized in that, described outlet flue link 11 comprises that at least two connect buckle 111 and at least one sealing ring mounting groove 112, are provided with positive stop lug boss 13 in sealing ring mounting groove 112 upper end.
Wherein, described outlet flue link 11 and smoke exhaust pipe link 12 are all the cylindric of hollow, and described connection buckle 111 stretches out and is evenly distributed on outlet flue link 111 from of outlet flue link 11.In the present embodiment, optimize mouth crossover sub 1 structure that is formed in one, preferably connect buckle 111 and be comprised of four elasticity of plastics buckles, preferably the quantity of sealing ring mounting groove 112 is one.In other embodiments, the quantity of described connection buckle is three, five or more, and the quantity of described sealing ring mounting groove is two, further improves sealing property, is not limited to the present embodiment.
During actual installation, as shown in Figure 3, Figure 4, first sealing ring 3 is sleeved on outlet flue crossover sub 1, then by four of outlet flue crossover sub 1, connects the installation site that buckle is aimed at secondary heat exchanger 2, while pressing down, because having certain elasticity, plastics connect buckle toward interior receipts by four.When Connection Card is detained certain position, the positive stop lug boss gear of outlet flue crossover sub 1 is in secondary heat exchanger 2 outlet flue outers, prevent that it from dropping in secondary heat exchanger 2 cavitys, meanwhile, four connect buckle reach in secondary heat exchanger 2 cavitys, recover elastic force and with secondary heat exchanger 2 fastenings.
The above specific embodiment has been described in detail essence of the present utility model, but can not to protection domain of the present utility model, limit with this.In every case according to the essence of the utility model, the simple modifications of doing, modification or equivalent transformation, within all dropping on claim protection domain of the present utility model.
Claims (3)
1. the outlet flue crossover sub for secondary heat exchanger, comprise: outlet flue link and smoke exhaust pipe link, it is characterized in that, described outlet flue link comprises that at least two connect buckle and at least one sealing ring mounting groove, are provided with positive stop lug boss in the upper end of sealing ring mounting groove.
2. a kind of outlet flue crossover sub for secondary heat exchanger according to claim 1, it is characterized in that, described outlet flue link and smoke exhaust pipe link are all the cylindric of hollow, and described connection buckle stretches out and is evenly distributed on outlet flue link from of outlet flue link.
3. a kind of outlet flue crossover sub for secondary heat exchanger according to claim 1, is characterized in that, the described outlet flue crossover sub structure that is formed in one, and described connection buckle is elasticity of plastics buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359821.5U CN203396111U (en) | 2013-06-21 | 2013-06-21 | Smoke outlet crossover coupling for secondary heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359821.5U CN203396111U (en) | 2013-06-21 | 2013-06-21 | Smoke outlet crossover coupling for secondary heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396111U true CN203396111U (en) | 2014-01-15 |
Family
ID=49907638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320359821.5U Expired - Fee Related CN203396111U (en) | 2013-06-21 | 2013-06-21 | Smoke outlet crossover coupling for secondary heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396111U (en) |
-
2013
- 2013-06-21 CN CN201320359821.5U patent/CN203396111U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |