CN211290515U - Sealing-free heating device - Google Patents
Sealing-free heating device Download PDFInfo
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- CN211290515U CN211290515U CN201920882093.3U CN201920882093U CN211290515U CN 211290515 U CN211290515 U CN 211290515U CN 201920882093 U CN201920882093 U CN 201920882093U CN 211290515 U CN211290515 U CN 211290515U
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- heating
- pipe fitting
- water inlet
- protection shell
- water outlet
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Abstract
The utility model discloses a sealing-free heating device, which comprises a heating protection shell, a heating pipe fitting arranged in the heating protection shell, and a water inlet pipe fitting and a water outlet pipe fitting which are arranged at two ends of the heating pipe fitting and are sleeved and embedded with the outer wall of the heating pipe fitting; the other ends of the water inlet pipe fitting and the water outlet pipe fitting extend to the outside of the heating protection shell; the heating protection shell is characterized in that annular limiting structures matched with the heating pipe fittings are arranged on the inner walls of the two ends of the heating protection shell and used for limiting the transverse degree of freedom of the heating pipe fittings, and the inner diameter of each annular limiting structure is not larger than the sum of the outer diameter of the corresponding part of the heating pipe fittings and the thickness of the water inlet pipe fittings or the water outlet pipe fittings sleeved on the heating pipe fittings. Utility model structure is simple, has directly reduced seal part, has still reduced the part quantity of product when having reduced product cost, has reduced the administrative cost of fault rate and enterprise. And simultaneously, the utility model discloses combine limit structure and business turn over water pipe fitting to realize sealed function perfectly. At the same time, the possibility of leakage is avoided, in particular in the manner of an interference fit, due to the nature of the structure.
Description
Technical Field
The utility model relates to a heating technology, concretely relates to exempt from to seal heating device.
Background
With the increasing living standard of people and the increasing importance of society on environmental protection, the demand of various fields on water heating, in particular the demand of clean energy heating, is increasing. The current heating technology is increasingly diversified, but the mainstream heating is mainly electric heating particularly in the civil field. The sealing effect in electrical heating technology is particularly critical, since the safety of the entire product is a concern. In the prior art, the electric heating product mostly adopts a sealing mechanism such as a sealing ring and a sealing gasket to seal key parts, although the sealing effect can be achieved, the sealing position of the electric heating device is mostly a position with higher temperature or larger temperature change, so that the sealing structure is easy to age and deform. And the sealing structure is often required to be customized independently, and the sizes of the sealing elements of different types are different, so that the direct cost of the product is increased, the number of parts of the product is increased, the management cost of an enterprise is increased, and the failure rate of the product is greatly improved.
As electrical heating technology develops and matures, thick film heating is becoming increasingly popular. In the prior art, the thick film is heated by adopting materials such as tubular stainless steel and the like as base materials, and a thick film circuit is printed on the base materials to realize the heating function. In order to increase the safety and easy fixation of the product, a protective shell is additionally arranged outside the pipe fitting. The pipe fitting and the protection shell often have a gap, and the pipe fitting is easy to shake after being used for a period of time.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides a sealing-free heating device.
The technical scheme of the utility model is that: a sealing-free heating device comprises a heating protection shell, a heating pipe fitting arranged in the heating protection shell, and a water inlet pipe fitting and a water outlet pipe fitting which are arranged at two ends of the heating pipe fitting and are sleeved and embedded with the outer wall of the heating pipe fitting; the other ends of the water inlet pipe fitting and the water outlet pipe fitting extend to the outside of the heating protective shell; the inner walls of two ends of the heating protection shell are provided with annular limiting structures matched with the heating pipe fittings for limiting the transverse degree of freedom of the heating pipe fittings, and the inner diameter of each annular limiting structure is not larger than the sum of the outer diameter of the corresponding part of the heating pipe fittings and the thickness of the water inlet pipe fittings or the water outlet pipe fittings sleeved on the heating pipe fittings.
The utility model discloses a further improvement includes:
the water inlet pipe fitting or the water outlet pipe fitting is made of silica gel, plastic or rubber.
The water inlet pipe fitting or the water outlet pipe fitting is of a tubular structure with the diameter gradually reduced, and the diameter of the part, in contact with the heating pipe fitting, of the water inlet pipe fitting or the water outlet pipe fitting is the largest.
The limit structure is a step structure formed by surrounding the side wall of the heating protection shell and the end face connected with the side wall, and the step structure is not more than the depth of the water inlet pipe fitting or the water outlet pipe fitting embedded in the heating pipe fitting along the extension length of the side wall.
The heating protection shell is of at least two sections or two-petal type structure.
The utility model discloses simple structure has directly reduced seal part, has still reduced the part quantity of product when having reduced product cost, has reduced the administrative cost of fault rate and enterprise. And simultaneously, the utility model discloses combine perfect realization sealing function with limit structure and business turn over water pipe fitting. At the same time, the possibility of leakage is avoided, in particular in the manner of an interference fit, due to the nature of the structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of fig. 1.
In the figure: 1. heating protection casing, 2, temperature controller, 3, terminal box, 4, annular limit structure, 5, water conservancy diversion post, 6, heating pipe spare, 7, the pipe fitting of intaking, 8, play water pipe spare, 9, the pipe fitting of intaking.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the sealing-free heating device of the present invention comprises a heating protection housing, a heating pipe disposed in the heating protection housing, and a water inlet pipe and a water outlet pipe disposed at two ends of the heating pipe and nested with the outer wall of the heating pipe; the other ends of the water inlet pipe fitting and the water outlet pipe fitting extend to the outside of the heating protective shell; the inner walls of two ends of the heating protection shell are provided with annular limiting structures matched with the heating pipe fittings for limiting the transverse degree of freedom of the heating pipe fittings, and the inner diameter of each annular limiting structure is not larger than the sum of the outer diameter of the corresponding part of the heating pipe fittings and the thickness of the water inlet pipe fittings or the water outlet pipe fittings sleeved on the heating pipe fittings.
The water inlet pipe fitting or the water outlet pipe fitting is made of silica gel, plastic or rubber. The material is matched with the annular limiting structure, so that the sealing performance of the water inlet and the water outlet is ensured.
The water inlet pipe fitting or the water outlet pipe fitting is of a tubular structure with the diameter gradually reduced, and the diameter of the part, in contact with the heating pipe fitting, of the water inlet pipe fitting or the water outlet pipe fitting is the largest.
The limit structure is a step structure formed by surrounding the side wall of the heating protection shell and the end face connected with the side wall, and the step structure is not more than the depth of the water inlet pipe fitting or the water outlet pipe fitting embedded in the heating pipe fitting along the extension length of the side wall.
The heating protection shell is of at least two sections or two-petal type structure. The structure is convenient for the assembly of products and can effectively reduce labor cost.
The utility model discloses simple structure has directly reduced seal part, has still reduced the part quantity of product when having reduced product cost, has reduced the administrative cost of fault rate and enterprise. And simultaneously, the utility model discloses combine perfect realization sealing function with limit structure and business turn over water pipe fitting. At the same time, the possibility of leakage is avoided, in particular in the manner of an interference fit, due to the nature of the structure.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A sealing-free heating device is characterized by comprising a heating protection shell, a heating pipe fitting arranged in the heating protection shell, and a water inlet pipe fitting and a water outlet pipe fitting which are arranged at two ends of the heating pipe fitting and are sleeved and embedded with the outer wall of the heating pipe fitting; the other ends of the water inlet pipe fitting and the water outlet pipe fitting extend to the outside of the heating protective shell; the inner walls of two ends of the heating protection shell are provided with annular limiting structures matched with the heating pipe fittings for limiting the transverse degree of freedom of the heating pipe fittings, and the inner diameter of each annular limiting structure is not larger than the sum of the outer diameter of the corresponding part of the heating pipe fittings and the thickness of the water inlet pipe fittings or the water outlet pipe fittings sleeved on the heating pipe fittings.
2. A seal-free heating device as claimed in claim 1, wherein the water inlet pipe or outlet pipe is made of silica gel, plastic or rubber.
3. The seal-free heating device as claimed in claim 1, wherein the water inlet pipe or the water outlet pipe is of a tubular structure with a gradually reduced diameter, and the diameter of the portion contacting the heating pipe is the largest.
4. The seal-free heating device as claimed in claim 1, wherein the limiting structure is a step structure formed by surrounding a side wall of the heating protection shell and an end surface connected with the side wall, and the step structure extends along the side wall to a length no greater than the depth of the water inlet pipe fitting or the water outlet pipe fitting sleeved in the heating pipe fitting.
5. A seal-free heating device as claimed in claim 1, wherein the heating protection casing is of at least two-segment or two-lobe configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882093.3U CN211290515U (en) | 2019-06-13 | 2019-06-13 | Sealing-free heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882093.3U CN211290515U (en) | 2019-06-13 | 2019-06-13 | Sealing-free heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211290515U true CN211290515U (en) | 2020-08-18 |
Family
ID=72010971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920882093.3U Active CN211290515U (en) | 2019-06-13 | 2019-06-13 | Sealing-free heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211290515U (en) |
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2019
- 2019-06-13 CN CN201920882093.3U patent/CN211290515U/en active Active
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