CN101749426B - Threadedly connected cylinders with sealing structures - Google Patents
Threadedly connected cylinders with sealing structures Download PDFInfo
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- CN101749426B CN101749426B CN200910110250XA CN200910110250A CN101749426B CN 101749426 B CN101749426 B CN 101749426B CN 200910110250X A CN200910110250X A CN 200910110250XA CN 200910110250 A CN200910110250 A CN 200910110250A CN 101749426 B CN101749426 B CN 101749426B
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- cylindrical shell
- threaded
- circular groove
- sealing
- seal
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Abstract
The invention relates to threadedly connected cylinders with sealing structures, comprising a first cylinder and a second cylinder which are threadedly connected. Two or more annular grooves are disposed at intervals on the surfaces of the overlapped walls of the first cylinder and the second cylinder, and elastic sealing pieces are arranged in the annular grooves. The problem on the sealing of the prior cylinders in the deep water is solved, the requirement for the thickness of the walls of the prior cylinders is decreased, and the cost is obviously lowered.
Description
Technical field
The present invention relates to a kind of cylindrical shell that is threaded, more particularly, relate to a kind of cylindrical shell that is threaded with sealing configuration.
Background technique
For columnar product, being connected between cylinder and the cylinder, adopt is threaded more, and sealing between the two is main to adopt radial seal then.Present radial seal mainly contains following two kinds of structures; First kind of structure is in the Gewindefreistiche that is screwed onto inboard cylindrical shell, directly to place O type circle, though this sealing configuration is compact, and the sealing reliability extreme difference; O type circle might be scratched in the process of assembling; And when bearing external high pressure, O type circle can be squeezed into the thread gaps the inside, thereby causes seal failure; Second kind of structure is to open a groove in addition on the Gewindefreistiche next door that is screwed onto inboard cylindrical shell to place O type circle; In this structure; For realizing the reliability of sealing, require the diameter of section of O type circle enough big usually, enough decrements are arranged; Therefore just need do the wall of cylinder very thickly, not only waste material but also increased the weight of product.
Summary of the invention
The technical problem that the present invention will solve is, to the above-mentioned defective of existing technology, a kind of cylindrical shell that is threaded that has the reliability height, do not increase the sealing configuration of wall thickness of cylinder is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cylindrical shell that is threaded with sealing configuration; Comprise first cylindrical shell and second cylindrical shell that are threaded; On the wall of first cylindrical shell and second cylindrical shell overlapping, have two or more circular grooves at interval, be provided with elastomer seal in the circular groove; One in said two or more circular groove is Gewindefreistiche.
In the cylindrical shell that is threaded with sealing configuration of the present invention, said two or more circular grooves are arranged on screw thread one side of first cylindrical shell and second cylindrical shell.
In the cylindrical shell that is threaded with sealing configuration of the present invention, said elastomer seal and circular groove form fit, first cylindrical shell is connected the back elastomer seal with the clearance seal between the two with second cylindrical shell.Said elastomer seal is preferably O type circle.
In the cylindrical shell that is threaded with sealing configuration of the present invention, said first cylindrical shell is screwed onto outside second cylindrical shell, and said circular groove is arranged on the outer wall of first cylinder inboard wall or second cylindrical shell.
In the cylindrical shell that is threaded with sealing configuration of the present invention; Said first cylindrical shell is screwed onto outside second cylindrical shell; Said circular groove is separately positioned on the outer wall of first cylinder inboard wall and second cylindrical shell; After first cylindrical shell and second cylindrical shell were spirally connected, the circular groove opening of the outer wall of the circular groove of the inwall of first cylindrical shell and second cylindrical shell was relative, formed two or more complete cell bodies.
The present invention is employed in two or more circular grooves is set on the cylindrical shell of two connections at interval; Form dual or multi-sealing structure; Compare original elastomer seal that is arranged in the circular groove, the diameter of section of the elastomer seal that is provided with in the two or more circular grooves of the present invention reduces, thickness that so just can two cylindrical shells of corresponding minimizing; Equally also the better seal effect can be reached, the reliable sealing of 100 meters depth of waters of International Industry classification of waterproof standard I PX8 can be realized.The present invention had both solved the deep water sealing problem of the cylindrical shell that is threaded, and had reduced the requirement to the cylindrical shell wall thickness again, had reduced cost significantly.
In two circular grooves of the present invention, one of them is to use Gewindefreistiche, has reduced manufacturing procedure, has reduced difficulty of processing, also avoids car to go out a plurality of grooves simultaneously, reduces the intensity of cylindrical shell.
The position that circular groove is provided with can be confirmed according to actual processing method, can be arranged on any or be arranged on two cylindrical shells convenient processing simultaneously.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the generalized section of the cylindrical shell that is threaded with sealing configuration of the embodiment of the invention;
Fig. 2 is the partial enlarged drawing that cuts along curve among Fig. 1.
Embodiment
As shown in Figure 1, be the generalized section of the cylindrical shell that is threaded with sealing configuration of the embodiment of the invention, Fig. 2 is the partial enlarged drawing that cuts along curve among Fig. 1.
As shown in Figure 2; In the cylindrical shell that is threaded with sealing configuration of the embodiment of the invention; Comprise first cylindrical shell 1 and second cylindrical shell 2 through being threaded, be provided with outside thread in second cylindrical shell, 2 ends, outside thread one side of second cylindrical shell 2 is provided with two circular grooves 31,33; Be respectively equipped with elastomer seal 32,34 with matching in each groove, thereby form double sealing structure.Preferably, one of them circular groove 33 directly utilizes the Gewindefreistiche on second cylindrical shell 2, thereby only need open a groove in addition, and promptly circular groove 31, just formed double sealing structure, reached seal request.First cylindrical shell 1 and second cylindrical shell, 2 bolts and after double sealing structure sealing, barrel just separates with outer water.Preferably use O type circle during elastomer seal 32,34 practical implementations.
Under the high hydraulic pressure of outer water,, possibly exist part water to penetrate between elastomer seal 32 and the elastomer seal 34 because the decrement of elastomer seal 32 is not enough big.Yet the pressure of this part water is very little, so even the decrement of elastomer seal 34 is little, there is the such adverse environment of screw thread in the left side in addition, also is enough to stop this part water to get into barrel, thereby has realized reliable sealing.
In the specific implementation; Two circular grooves can also be arranged on internal thread one side on the inwall of first cylindrical shell 1; Perhaps, all be provided with circular groove, after first cylindrical shell and second cylindrical shell are spirally connected at the inwall internal thread of first cylindrical shell 1 and externally threaded the same side of outer wall of second cylindrical shell 2; The semi-circular channel opening of the outer wall of the circular groove on the inwall of first cylindrical shell and second cylindrical shell is relative, thereby forms two complete cell bodies.Two circular grooves can be arranged on a side of screw thread, also can be arranged in the middle of the screw thread.
In addition, the quantity of circular groove can increase to a plurality of according to circumstances by two, to reach even more ideal sealing effect.
Application example 1: the cylindrical shell that the embodiment of the invention is threaded is used for submersible type light fixture product; Wherein front cover of lamp is first cylindrical shell, and the light fixture cylindrical shell is second cylindrical shell, and the two is through being threaded; The wall thickness of front cover of lamp is 2.5mm, and the wall thickness of light fixture cylindrical shell is 3.6mm.On the Gewindefreistiche limit of light fixture cylindrical shell, drive a circular groove in addition, in two circular grooves, all be placed with the O type circle that is used to seal.The depth of section of circular groove is 1.3mm, and the diameter of section of used O type circle is 1.8mm.Through test, this reliable in structure is through 100 meters depth of water tests of IPX8.
Comparative Examples 1
A kind of submersible type light fixture product, wherein, front cover of lamp is first cylindrical shell, and the light fixture cylindrical shell is second cylindrical shell, and the two is through being threaded, and the wall thickness of front cover of lamp is 2.5mm, the wall thickness of light fixture cylindrical shell is 3.6mm.In the Gewindefreistiche of light fixture cylindrical shell, directly place the O type circle that is used to seal.The depth of section of circular groove is 1.3mm, and the diameter of section of used O type circle is 1.8mm.Through test, this structure can not be through 100 meters depth of water tests of IPX8.
Comparative Examples 2
A kind of submersible type light fixture product, wherein, front cover of lamp is first cylindrical shell, and the light fixture cylindrical shell is second cylindrical shell, and the two is through being threaded, and the wall thickness of front cover of lamp is 2.5mm, the wall thickness of light fixture cylindrical shell is 4.8mm.On the Gewindefreistiche limit of light fixture cylindrical shell, drive a bigger circular groove of diameter of section in addition and placed the O type circle that is used to seal.The depth of section of circular groove is 2.5mm, and the diameter of section of used O type circle is 3.55 millimeters.Through test, this reliable in structure is through 100 meters depth of water tests of IPX8.But relative application example one, the wall thickness of light fixture cylindrical shell has increased 1.2mm, and just the alloy material used in amounts increases by 1/4th.
Find through the classification of waterproof standard testing; Application example 1 has passed through performing leak test, and Comparative Examples 1 can not satisfy the reliability of sealing, has the seal failure problem; Though Comparative Examples 2 can satisfy the reliability requirement of sealing; But strengthened the wall thickness of cylindrical shell, increased the material consumption and the weight of cylindrical shell, improved cost.
Application example 2: the cylindrical shell that the present invention is threaded is used for submersible type light fixture product, and wherein front cover of lamp is first cylindrical shell, and the light fixture cylindrical shell is second cylindrical shell, and the two is through being threaded, and the wall thickness of front cover of lamp is 2.7mm, and the wall thickness of light fixture cylindrical shell is 3.8mm.On the Gewindefreistiche limit of light fixture cylindrical shell, drive a circular groove in addition, in two circular grooves, all be placed with the O type circle that is used to seal.The depth of section of circular groove is 1.4mm, and the diameter of section of used O type circle is 1.8mm.
Application example 3: the cylindrical shell that the present invention is threaded is used for submersible type light fixture product, and wherein front cover of lamp is first cylindrical shell, and the light fixture cylindrical shell is second cylindrical shell, and the two is through being threaded, and the wall thickness of front cover of lamp is 2mm, and the wall thickness of light fixture cylindrical shell is 4mm.On the Gewindefreistiche limit of light fixture cylindrical shell, drive a circular groove in addition, in two circular grooves, all be placed with the O type circle that is used to seal.The depth of section of circular groove is 1.4mm, and the diameter of section of used O type circle is 2.2mm.
Claims (4)
1. cylindrical shell that is threaded with sealing configuration; Comprise first cylindrical shell and second cylindrical shell that are threaded; It is characterized in that, on the wall of said first cylindrical shell and said second cylindrical shell overlapping, have two or more circular grooves at interval, be provided with elastomer seal in the said circular groove; One in said two or more circular groove is Gewindefreistiche; Said first cylindrical shell is screwed onto outside said second cylindrical shell; Said circular groove is separately positioned on the outer wall of inwall and said second cylindrical shell of said first cylindrical shell; After said first cylindrical shell and said second cylindrical shell are spirally connected; The circular groove opening of the outer wall of the circular groove of the inwall of said first cylindrical shell and said second cylindrical shell is relative, forms two or more complete cell bodies.
2. the cylindrical shell that is threaded with sealing configuration according to claim 1 is characterized in that, said two or more circular grooves are arranged on screw thread one side of said first cylindrical shell and said second cylindrical shell.
3. the cylindrical shell that is threaded with sealing configuration according to claim 1; It is characterized in that; Said elastomer seal and said circular groove form fit, said first cylindrical shell are connected the said elastomer seal in back with the clearance seal between the two with said second cylindrical shell.
4. the cylindrical shell that is threaded with sealing configuration according to claim 1 is characterized in that, said elastomer seal is an O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110250XA CN101749426B (en) | 2009-10-27 | 2009-10-27 | Threadedly connected cylinders with sealing structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910110250XA CN101749426B (en) | 2009-10-27 | 2009-10-27 | Threadedly connected cylinders with sealing structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749426A CN101749426A (en) | 2010-06-23 |
| CN101749426B true CN101749426B (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910110250XA Expired - Fee Related CN101749426B (en) | 2009-10-27 | 2009-10-27 | Threadedly connected cylinders with sealing structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749426B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214341B (en) * | 2013-05-31 | 2016-09-07 | 海洋王（东莞）照明科技有限公司 | The sealing structure of threaded cylinder and the light fixture containing this sealing structure |
| CN113640114B (en) * | 2021-08-09 | 2024-04-26 | 重庆长江预应力有限公司 | Static load test system for pull rod |
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2009
- 2009-10-27 CN CN200910110250XA patent/CN101749426B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101749426A (en) | 2010-06-23 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20191027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |