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Self-tightening sealed shell end part linking structure

A technology of self-tightening sealing and connection structure, which is applied in the direction of filtration separation, separation methods, chemical instruments and methods, etc., can solve the problems of laborious tightening, achieve good sealing effect, save labor in disassembly and assembly, and enhance the sealing effect

Inactive Publication Date: 2013-09-11
黄樟焱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned sealed connection structure, in order to make the seal reliable, the compression pre-tightening force on the seal ring required for the seal still needs to come from the tightening force, and at the same time, the friction force between the seal ring and the surface of the cavity containing the seal ring must be overcome. And these forces need to be provided by the operator, so the tightening is very laborious

Method used

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  • Self-tightening sealed shell end part linking structure
  • Self-tightening sealed shell end part linking structure
  • Self-tightening sealed shell end part linking structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1: Combining figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, this embodiment is a self-tightening and sealing connection structure at the end for a pipeline water purifier, including a metal shell 15 with an outer flange 22 at the end, a fixing member 14, an end cover 10, a bearing The pressure ring 7, the O-ring 5 and the two-half type fixing part seat 4; the metal shell 15 is provided with two notches 13 at the outer flange 22; The surfaces are respectively provided with threads that can be screwed with each other, the inner surface of the former is also provided with a groove 6 that can embed the flange 22, the former is arranged on the outside of the flange 22; the periphery of the end cover 10 is provided with a metal shell 15 A short cylinder 19 extending inside, the end of the short cylinder 19 is provided with a circular ring 18 extending radially outward, the short cylinder 19 and the circular ring 18 are inserted int...

Embodiment 2

[0054] Example 2: Combination Figure 7 As shown, this embodiment is a self-tightening sealed filter element shell end connection structure for a water purifier filter element, including an end cover 66, a shell 68, a rectangular sealing ring 63 and a fixing member 62; the periphery of the end cover 66 A short cylinder 67 extending into the casing 68 is provided, and the end of the short cylinder 67 is provided with a circular ring 61 extending radially outward, and the short cylinder 67 and the circular ring 61 are inserted into the casing 68; the fixing member 62 The fixing member 62 is provided with a pressure bearing ring 64 which can prevent the sealing ring 63 from being squeezed out of the end of the casing 68; between the pressure bearing ring 64 and the circular ring 61 There is a rectangular sealing ring 63 ; the maximum radial dimension of the cross-section of the rectangular sealing ring 63 is larger than the size of the gap between the inner surface of the housing...

Embodiment 3

[0055] Example 3: Combination Figure 8 and Figure 9 As shown, this embodiment is a self-tightening and sealing connection structure used in the pretreatment filter element (American filter bottle) of a household water purifier, including a filter bottle housing 30, a fixing member 42, a filter bottle cap 48, a pressure bearing ring 37 and O-ring 36; the periphery of the filter bottle cap 48 is provided with a short cylinder 41 extending into the filter bottle housing 30, and the end of the short cylinder 41 is provided with a radially outwardly extending ring 35, The short cylinder 41 and the circular ring 35 are inserted into the filter bottle housing 30; the pressure-bearing ring 37 is in the shape of a short tube, and the outer diameter of the pressure-bearing ring 37 is the same as the outer diameter of the circular ring 35 and not larger than the inner diameter of the casing 30 at the assembly place. Diameter, the pressure-bearing ring 37 is sleeved outside the short c...

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Abstract

The invention discloses a self-tightening sealed shell end part linking structure comprising an end cover, a shell, a fixed part and a sealing ring, wherein the fixed part is fixedly linked at the end part of the shell and is provided with a pressure-bearing ring capable of preventing the sealing ring from being extruded out of the end part of the shell; the periphery of the end cover extends along the axial direction of the shell to form a short cylinder, one end of the short cylinder away from the open end of the shell extends to the direction away from the axle center of the shell to form a round ring, and the short cylinder and the round ring are inserted into the shell; the sealing ring is arranged between the pressure-bearing ring and the round ring; and internal pressure acting on the inner side of the end cover acts on the sealing ring through the round ring and then acts on the pressure-bearing ring of the fixed part through the sealing ring. The self-tightening sealed shell end part linking structure is mainly used as an end part sealing and linking structure of a filter element shell in a water purifier or an end part sealing and linking structure of a connecting tube at the open part of a pressure water storage tank, and can also be used as an end part sealing and linking structure of other containers bearing internal pressure or an end part sealing and linking structure of a connecting tube at the open part of a container shell. The self-tightening sealed shell end part linking structure is convenient to disassemble and assemble, labor-saving and reliable in sealing.

Description

technical field [0001] The invention relates to the technical field of water purifiers, in particular to a self-tightening and sealing type casing end connection structure, which is mainly used for the end sealing connection structure of the filter element casing in the water purifier and the connection at the opening of the pressure water storage tank. The end sealing coupling structure can also be used for the end sealing coupling structure of other containers under internal pressure or the end sealing coupling structure of the nozzle at the opening of the container shell. Background technique [0002] The pretreatment filter element of the household reverse osmosis pure water machine adopts the American filter bottle, which is the mainstream configuration on the market. The American filter bottle includes the filter bottle body, the filter bottle cap and the sealing ring. Part of the filter bottle cap is also provided with an exhaust device, the filter bottle cap and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D35/30
Inventor 黄樟焱
Owner 黄樟焱