CN2888215Y

CN2888215Y - Combined safety valve for filter

Info

Publication number: CN2888215Y
Application number: CN 200620022778
Authority: CN
Inventors: 高志男
Original assignee: 高志男
Current assignee: BEIJING GAOXIN GREAT FILTER CO., LTD.
Priority date: 2006-02-20
Filing date: 2006-02-20
Publication date: 2007-04-11
Anticipated expiration: 2016-02-20

Abstract

A combination-type safe valve of the filter belongs to the filter field, mainly solves the problems such as complex structure, inconvenient dismantling and limitation for opening; a valve board(1) possesses a stop hook(5) and functional legs(4) which match the press spring(2) and also has a support(3), the upper part which is provided with cylindrical body(8) which matches the central hole on the lower end cover of the filter core for the filter and the top surface is provided with a central hole(6), the support(3) is provided with a shoulder for seal at the waist part and has a fluid flow path and round table body(11) which matches the bottom cover of the outer shell for the filter at the lower part; after the functional legs(4) of the valve board(1) is inserted from the upper side of the central hole(6) and penetrates the central hole(6) and the axial empty core of the press spring(2) which is located at the lower side of the central hole(6), the stop hook(5) of which hooks upon the press spring(2); the benefits are: safety valve is entirely independent, which is very convenient to keep safe valve for continuous using when independently replacing or replacing filter core; the opening degree for the valve board(1) can be increased with opening pressure increasing, to guarantee the liquid supply volume with advantages of convenient dismantling, easy manufacturing and low cost.

Description

The combined type safety valve of filter cleaner

Technical field

The utility model belongs to the filter cleaner field, relates to a kind of combined type safety valve of filter cleaner.

Background technique

In the prior art, safety valve all is housed in traditional liquid filter, having served as the filter element part stops up serious, when liquid flowing resistance increases, safety valve can be opened in good time automatically, for flow of fluid provides bypass, and the damage power equipment to avoid liquid supply deficiency, but existing safety valve has the following disadvantages, its integrity is installed in the inboard of the center hole of filter core lower end cap with the bolt locking mode, and dismounting is very inconvenient, during therefore general renew cartridge, safety valve is all thrown away together, waste is serious, and its valve plate is following in addition, and stage clip is pressed on the valve plate at following formula, valve plate is in case open, liquid must be by valve plate outer rim and the Clearance Flow of valve chest, cracking pressure size no matter, its flow resistance is generally constant, and bigger, therefore influence the liquid supply easily.

Summary of the invention

The technical problem that solves:

Adopt the independent support shelf structure, and change the relative position of valve plate and stage clip, overcome the deficiency that prior art exists, make safety valve independent fully, both be convenient to independent replacing, help saving, can guarantee the open degree of valve plate again, reduce the flow resistance of liquid, thereby guarantee the liquid supply, easy accessibility is easily made, and cost is low.

The technological scheme that adopts:

The combined type safety valve of filter cleaner, has valve plate 1, stage clip 2 and corresponding accessory, it is characterized in that: have the function leg 4 of being with strip dog 5 and certain flexible regular distribution being arranged on the valve plate 1, and it is supporting with stage clip 2, also has supporting frame 3, it is supporting with valve plate 1 and stage clip 2 to have central hole 6 on the end face of this supporting frame top Rotary-table 7, stage clip 2 is positioned at the bottom of central hole 6, after the function leg 4 of valve plate 1 is inserted through the axial hollow of central hole 6 and stage clip 2 from the top of central hole 6, its strip dog 5 eversion types are hooked on the foundation ring of stage clip 2 naturally, and the position, bottom side outer periphery of valve plate 1 and the top edge sealed type of central hole 6 contact; The end opening of Rotary-table 7 is close to the suitable for reading of cylindrical body 8, the external diameter of cylindrical body 8 must be supporting with the center-hole diameter of the filter core lower end cap of filter cleaner, the end opening of cylindrical body 8 is close to annulus 9, and the outer convex shoulder 10 of formation, this convex shoulder must be supporting with the bottom plane of the end opening edge of the center hole of the filter core lower end cap of filter cleaner, the outward edge of annulus 9 is close to the suitable for reading of bottom Rotary-table 11, has the flow channel of liquid on the Rotary-table 11.

Beneficial effect:

The safety valve of filter cleaner is independent fully, can be easily it be changed separately or keep safety valve when the renew cartridge more and continue to use, because valve plate 1 is last, stage clip 2 is following, and the open degree of valve plate does not have the valve chest restriction, along with the open degree of the increase valve plate 1 of cracking pressure can constantly increase, thereby fluid flow resistance is little, can guarantee the liquid supply, and its each constituent elements independence of aspect is also very strong in addition, can change easily, easy accessibility, easily make, cost is low.

Description of drawings

Be applied to view in the filter cleaner after Fig. 1, the overall package;

Fig. 2, by A shown in Figure 1 to the plan view () of supporting frame 3;

Fig. 3, by A shown in Figure 1 to the plan view (two) of supporting frame 3;

Embodiment

Further explanation in detail in conjunction with the accompanying drawings;

Arrow is shown fluid flow direction among the figure; 15-sealing gasket among the figure, 16-filter core lower end cap, the center hole of 17-filter core lower end cap, 18-filter housing, the bottom of 19-filter housing, 20-filter core.

As shown in Figure 1:

Supporting frame 3 is for integral body processes, and its material has certain elasticity;

Central hole 6 has following flange 12, and the upper end of stage clip 2 is enclosed within down on the flange 12, helps the location of stage clip 2;

The quantity of function leg 4 and size should be convenient to location, the displacement of valve plate 1 and guarantee its open degree, and it is uniform to be shown three function legs 4 among the figure.

When being applied in the filter cleaner, between the bottom plane of the end opening edge of the center hole 17 of the filter core lower end cap 16 of convex shoulder 10 and filter cleaner, need install sealing gasket 15 additional.

Shown in Fig. 1～3, the end opening of Rotary-table 11 has the flange 13 that outwards makes progress, and the outer side surface need of this flange and the form fit of the bottom 19 of filter housing 18 have the corresponding conical surface or sphere.

As shown in Figure 2, the flow channel of the liquid that has on the Rotary-table 11 is scarce shape by Rotary-table 11 and is formed, and promptly Rotary-table 11 is by being clipped two-part shown in m-m ', the n-n ' straight line.

As shown in Figure 3, the flow channel of the liquid that has on the Rotary-table 11 is the opening 14 of regular distribution on it.

As shown in Figure 1, the height h of function leg 4 ₀Under the prerequisite that satisfies valve plate 1 open degree, decide according to the shape of the bottom 19 of the corresponding height of stage clip 2 and filter housing 18 and height, and with total effective height h of supporting frame 3 ₁Supporting, and h ₁Must guarantee the combined type safety valve application behind filter cleaner, the internal surface of the bottom 19 of filter housing 18 compresses supporting frame 3 and makes its reliable location.

During application, earlier sealing gasket 15 is filled up on convex shoulder 10, the cylindrical body 8 with supporting frame 3 of the integrity center hole 17 that inserts the lower end cap 16 of filter cores 20 gets final product then, install the bottom 19 of filter housing at last, or directly having the filter housing 18 of bottom 19, the combined type safety valve is promptly compressed the location by integrated type; When the filter element of filter core 20 stopped up serious liquid flowing resistance and increases, promptly automatism was in the bottom side of valve plate 1, promoted that it is up, 1 strip dog 5 compression press spring 2 that pass through on the function leg of valve plate, thereby valve plate 1 rises and opens, and fluid flow resistance is big more, and the open degree of valve plate 1 is big more.

, can make its disengaging stage clip 2 and extract valve plate 1 to center pinching strip dog 5 with hand, integral disassembly, assembly replacing and parts disassembling, assembling and replacing are all very convenient.

Claims

1, the combined type safety valve of filter cleaner, has valve plate (1), stage clip (2) and corresponding accessory, it is characterized in that: have band strip dog (5) on the valve plate (1) and the function leg (4) of certain flexible regular distribution is arranged, and it is supporting with stage clip (2), also has supporting frame (3), it is supporting with valve plate (1) and stage clip (2) to have central hole (6) on the end face of this supporting frame top Rotary-table (7), stage clip (2) is positioned at the bottom of central hole (6), after the function leg (4) of valve plate (1) is inserted through the axial hollow of central hole (6) and stage clip (2) from the top of central hole (6), its strip dog (5) eversion type is hooked on the foundation ring of stage clip (2) naturally, and the top edge sealed type of the position, bottom side outer periphery of valve plate (1) and central hole (6) contacts; The end opening of Rotary-table (7) is close to the suitable for reading of cylindrical body (8), the external diameter of cylindrical body (8) must be supporting with the center-hole diameter of the filter core lower end cap of filter cleaner, the end opening of cylindrical body (8) is close to annulus (9), and formation outer convex shoulder (10), this convex shoulder must be supporting with the bottom plane of the end opening edge of the center hole of the filter core lower end cap of filter cleaner, the outward edge of annulus (9) is close to the suitable for reading of bottom Rotary-table (11), has the flow channel of liquid on the Rotary-table (11).

2, the combined type safety valve of filter cleaner according to claim 1 is characterized in that: supporting frame (3) processes for integral body.

3, the combined type safety valve of filter cleaner according to claim 1 and 2 is characterized in that: central hole (6) has following flange (12), and the upper end of stage clip (2) is enclosed within on the flange (12).

4, the combined type safety valve of filter cleaner according to claim 1 and 2 is characterized in that: the end opening of Rotary-table (11) has the flange (13) that outwards makes progress, and the outer side surface of this flange has the corresponding conical surface or sphere.

5, the combined type safety valve of filter cleaner according to claim 3 is characterized in that: the end opening of Rotary-table (11) has the flange (13) that outwards makes progress, and the outer side surface of this flange has the corresponding conical surface or sphere.

6, according to the combined type safety valve of claim 1,2 or 5 described filter cleaners, it is characterized in that: the flow channel of the liquid that has on the Rotary-table (11) is scarce shape by Rotary-table (11) and is formed, and perhaps is the opening (14) that Rotary-table (11) is gone up regular distribution.

7, the combined type safety valve of filter cleaner according to claim 3 is characterized in that: the flow channel of the liquid that has on the Rotary-table (11) is scarce shape by Rotary-table (11) and is formed, and perhaps is the opening (14) that Rotary-table (11) is gone up regular distribution.

8, the combined type safety valve of filter cleaner according to claim 4 is characterized in that: the flow channel of the liquid that has on the Rotary-table (11) is scarce shape by Rotary-table (11) and is formed, and perhaps is the opening (14) that Rotary-table (11) is gone up regular distribution.