Patents
Search within
Search within the title, abstract, claims, or full patent document: You can restrict your search to a specific field using field names.
Use TI= to search in the title, AB= for the abstract, CL= for the claims, or TAC= for all three. For example, TI=(safety belt).
Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent ideas in place of keywords, and can also be entered in a search term box. If you're searching forseat belts, you could also search for B60R22/00 to retrieve documents that mention safety belts or body harnesses. CPC=B60R22 will match documents with exactly this CPC, CPC=B60R22/low matches documents with this CPC or a child classification of this CPC.
Learn More
Title
Abstract
Claims
Full Document
Find patents
Keywords and boolean syntax (USPTO or EPO format): seat belt searches these two words, or their plurals and close synonyms. "seat belt" searches this exact phrase, in order. -seat -belt searches for documents not containing either word.
For searches using boolean logic, the default operator is AND with left associativity. Note: this means safety OR seat belt is searched as (safety OR seat) AND belt. Each word automatically includes plurals and close synonyms. Adjacent words that are implicitly ANDed together, such as (safety belt), are treated as a phrase when generating synonyms.
Learn More
Search by
Chemistry searches match terms (trade names, IUPAC names, etc. extracted from the entire document, and processed from .MOL files.)
Substructure (use SSS=) and similarity (use ~) searches are limited to one per search at the top-level AND condition. Exact searches can be used multiple times throughout the search query.
Searching by SMILES or InChi key requires no special syntax. To search by SMARTS, use SMARTS=.
To search for multiple molecules, select "Batch" in the "Type" menu. Enter multiple molecules separated by whitespace or by comma.
Learn More
Patent numbers
Search specific patents by importing a CSV or list of patent publication or application numbers.
Sealing structure of connecting pipe
Description
translated from
Technical Field
The utility model belongs to the technical field of the tube coupling, concretely relates to connecting pipe seal structure.
Background
Pipeline joint among the prior art, gasket all with intraductal gas or liquid contact, have great problem in sealed effect and corrosion resistance, especially wash the back for a long time, the gasket is eroded, and the leakproofness can reduce, influences pipeline conveying efficiency, increases the maintenance cost.
The application discloses a pipeline joint assembly and a heat pump system, which comprises a first connecting piece, a second connecting piece, a joint and a sealing piece, wherein at least part of the outer surface of the first connecting piece is provided with threads, the second connecting piece is provided with an accommodating cavity, the inner surface of the accommodating cavity is provided with threads matched with the first connecting piece, the joint is provided with a bulge and is accommodated in the accommodating cavity, the first connecting piece is provided with a groove for accommodating the sealing piece, after the first connecting piece and the second connecting piece are screwed in place, the bulge is partially or completely accommodated in the groove and presses against the sealing piece, and the sealing piece is a metal gasket or a graphite gasket. Directly screwing the first connecting piece and the second connecting piece to enable the bulge on the joint to push the sealing element to enter the groove, and fixing the sealing element in the groove by using the screwing force of the first connecting piece and the second connecting piece to achieve the sealing effect; the sealing element adopts a metal gasket and/or a graphite gasket.
It can be seen that the existing convex-concave structures in the prior art are matched, but the sealing sheet still contacts with the substances in the pipeline, so that the problem that the sealing sheet is eroded cannot be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connecting pipe seal structure aims at solving among the prior art the problem that the gasket among the EGR connecting line is easily eroded by high-temperature gas.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a connecting pipe seal structure, include: the sealing piece comprises a first connecting pipe, a second connecting pipe and a sealing piece, wherein the first connecting pipe is provided with a groove, the second connecting pipe is provided with a bulge, and the sealing piece is also provided with a through hole; the bulge of the second connecting pipe penetrates through the through hole of the sealing sheet to be matched with the groove of the first connecting pipe, and the first connecting pipe is fixedly connected with the second connecting pipe.
Preferably, the first connecting pipe is provided with a first screw hole, the second connecting pipe is provided with a second screw hole, and the first connecting pipe and the second connecting pipe are fixedly connected through a screw.
Preferably, the sealing sheet is provided with a third screw hole.
Preferably, the sealing sheet is a metal steel sheet.
The utility model has the advantages that:
1. the utility model provides a connecting pipe seal structure, the takeover adopts the concave-convex structure cooperation, and the cooperation mode is inseparable.
2. The utility model provides a connecting pipe seal structure, gasket wear to overlap on the takeover, direct contact high temperature gas or liquid not.
Drawings
Fig. 1 is a schematic structural view of a sealing structure of a connecting pipe according to the present invention;
fig. 2 is a sectional top view of the sealing structure of the connecting pipe according to the present invention.
In the figure, 100 is a first adapter, 101 is a groove, 102 is a first screw hole, 200 is a second adapter, 201 is a protrusion, 202 is a second screw hole, 300 is a sealing sheet, 301 is a through hole, and 303 is a third screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a connecting pipe seal structure, as shown in figure 1, figure 2, include: the sealing piece comprises a first connecting pipe 100, a second connecting pipe 200 and a sealing piece 300, wherein the first connecting pipe 100 is provided with a groove 101, the second connecting pipe 200 is provided with a protrusion 201, and the sealing piece 300 is further provided with a through hole 301; the bulge 201 of the second adapter tube 200 passes through the through hole 301 of the sealing sheet 300 to be matched with the groove 101 of the first adapter tube 101, and the first adapter tube 100 is fixedly connected with the second adapter tube 200; because the protrusion 201 of the second adapter tube 200 passes through the through hole 301 of the sealing plate 300 and is matched with the groove 101 of the first adapter tube 101, the high-temperature gas/liquid in the first adapter tube 100 cannot contact with the sealing plate 300, therefore, the high-temperature gas/liquid cannot erode the sealing plate 300, and the problem of reduced sealing performance after the high-temperature gas/liquid erodes the sealing plate 300 in the prior art is solved.
In one embodiment, as shown in fig. 2, a first screw hole 101 is formed in the first adapter tube 100, a second screw hole 201 is formed in the second adapter tube 200, and the first adapter tube 100 and the second adapter tube 200 are fixedly connected by a screw.
In one embodiment, as shown in fig. 2, the sealing plate 300 is provided with a third screw hole 303, and in order to improve the fastening performance of the sealing plate 300, screws may pass through the first screw hole 101, the second screw hole 201, and the third screw hole 303, so as to improve the fastening performance of the sealing plate 300 between the first adapter 100 and the second adapter 200.
In some embodiments, the sealing plate 300 is a metal steel plate, which has better sealing performance and corrosion resistance.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (4)
Hide Dependent
translated from
Claims (4)
Hide Dependent
translated from
1. A connecting tube sealing structure comprising: first takeover, second takeover and gasket, its characterized in that: the first connecting pipe is provided with a groove, the second connecting pipe is provided with a bulge, and the sealing sheet is also provided with a through hole; the bulge of the second connecting pipe penetrates through the through hole of the sealing sheet to be matched with the groove of the first connecting pipe, and the first connecting pipe is fixedly connected with the second connecting pipe.
2. The connecting pipe sealing structure according to claim 1, wherein said first connecting pipe is provided with a first screw hole, said second connecting pipe is provided with a second screw hole, and said first connecting pipe and said second connecting pipe are fixedly connected by a screw.
3. The connecting tube sealing structure according to claim 1, wherein said sealing plate is provided with a third screw hole.
4. The connecting pipe sealing structure according to claim 1 or 3, wherein the sealing piece is a metal steel sheet.