CN102877558A - Polyurethane board with novel joints - Google Patents
Polyurethane board with novel joints Download PDFInfo
- Publication number
- CN102877558A CN102877558A CN 201210362341 CN201210362341A CN102877558A CN 102877558 A CN102877558 A CN 102877558A CN 201210362341 CN201210362341 CN 201210362341 CN 201210362341 A CN201210362341 A CN 201210362341A CN 102877558 A CN102877558 A CN 102877558A
- Authority
- CN
- China
- Prior art keywords
- overlap joint
- groove
- polyurethane sheet
- lapping
- arc groove
- 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.)
- Pending
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- Refrigerator Housings (AREA)
Abstract
The invention provides a polyurethane board. Each end of the polyurethane board is provided with an arc groove in the middle. A lapping groove and a lapping tongue are arranged on each side of the arc groove at one end from inside to outside, and a lapping protrusion and a lapping concave corresponding to the lapping groove and the lapping tongue are arranged on each side of the arc groove at the other end from inside to outside. The polyurethane board has the advantages that the polyurethane boards are connected more tightly with better tightness, and the polyurethane board is simple in structure and can meet the requirement for refrigerator airtightness at low temperature.
Description
Technical field
The invention belongs to the polyurethane sheet field, especially relate to a kind of polyurethane sheet with new interface.
Background technology
Polyurethane sheet is widely used in all kinds of buildings as heat insulating material, especially uses frequent in the freezer industry.In use, the overlap joint problem between polyurethane sheet is paid close attention to by people.Most polyurethane sheet bridging method is to adopt box and pin or eccentric hook and snap close overlap joint and at place, slit filling with sealant in existing technology.But in the low-down situation of temperature of ice house, because fluid sealant and polyurethane are not same substances, there is the difference of shrinkage ratio, causes technical problem poorly sealed between plate to occur, cause heat insulation effect to reduce and energy waste.
Summary of the invention
The problem to be solved in the present invention provides a kind of polyurethane sheet with new interface, and its sealing performance is significantly improved, and especially is fit to the very low freezer of temperature requirement and uses.
For solving the problems of the technologies described above, the technical solution used in the present invention is: respectively establish an arc groove in the middle part at polyurethane sheet two ends, the arc groove both sides of an end are respectively established an overlap joint groove and an overlap joint tongue from inside to outside therein, and the arc groove both sides of the other end are respectively established an overlap joint boss corresponding with described overlap joint groove and described overlap joint tongue and overlap joint concave station from inside to outside.
Wherein, overlap joint groove corresponding to two ends, overlap joint tongue and overlap joint boss, overlap joint boss can be in square, trapezoidal or the triangle any.
Advantage and good effect that the present invention has are: owing to adopt technique scheme, the connection between polyurethane sheet is more tight, and better tightness is simple in structure, can reach the very low advantages such as refrigerator sealing requirements of temperature requirement.
Description of drawings
Fig. 1 is the sectional view at polyurethane sheet of the present invention two ends
Among the figure:
1, polyurethane sheet 2, arc groove 3, overlap joint groove
4, overlap joint tongue 5, overlap joint boss 6, overlap joint concave station
The specific embodiment
As shown in Figure 1, polyurethane sheet of the present invention, comprise polyurethane sheet 1, respectively establish an arc groove 2 in the middle part at polyurethane sheet 1 two ends, arc groove 2 both sides of an end are respectively established overlap joint groove 3 and one an overlap joint tongue 4 from inside to outside therein, and arc groove 2 both sides of the other end are respectively established from inside to outside an overlap joint boss 5 corresponding with described overlap joint groove 3 and described overlap joint tongue 4 and overlapped concave station 6.
The course of work of this example: during polyurethane sheet 1 overlap joint, overlap joint groove 3 and overlap joint boss 5, overlap tongue 4 and overlap just in time corresponding agreeing with of concave station 6, and column cavity of middle formation is injecting liquid polyurethane in the column cavity, until after overexpansion, cooling, solidifying, the effect of above-mentioned two structures makes the connection of 1 of polyurethane sheet tightr, better tightness, can reach the requirement of the very low refrigerator sealing of temperature requirement, thus energy conservation.
In the above-described embodiments, overlap joint groove 3 corresponding to two ends, overlap joint tongue 4 are square with overlap joint boss 5, overlap joint concave station 6, equally also can replace with in trapezoidal or the triangle any, other shapes that also can other those skilled in the art can expect.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (2)
1. polyurethane sheet, it is characterized in that: an arc groove is respectively established in the middle part at polyurethane sheet two ends, the arc groove both sides of an end are respectively established an overlap joint groove and an overlap joint tongue from inside to outside therein, and the arc groove both sides of the other end are respectively established an overlap joint boss corresponding with described overlap joint groove and described overlap joint tongue and overlap joint concave station from inside to outside.
2. a kind of polyurethane sheet according to claim 1 is characterized in that: overlap joint groove corresponding to two ends, overlap joint tongue and overlap joint boss, overlap joint boss can be in square, trapezoidal or the triangle any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210362341 CN102877558A (en) | 2012-09-25 | 2012-09-25 | Polyurethane board with novel joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210362341 CN102877558A (en) | 2012-09-25 | 2012-09-25 | Polyurethane board with novel joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102877558A true CN102877558A (en) | 2013-01-16 |
Family
ID=47479058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210362341 Pending CN102877558A (en) | 2012-09-25 | 2012-09-25 | Polyurethane board with novel joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102877558A (en) |
-
2012
- 2012-09-25 CN CN 201210362341 patent/CN102877558A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |