CN202040155U - Large-quantity back wash filter - Google Patents
Large-quantity back wash filter Download PDFInfo
- Publication number
- CN202040155U CN202040155U CN2011200904192U CN201120090419U CN202040155U CN 202040155 U CN202040155 U CN 202040155U CN 2011200904192 U CN2011200904192 U CN 2011200904192U CN 201120090419 U CN201120090419 U CN 201120090419U CN 202040155 U CN202040155 U CN 202040155U
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- filtrate channel
- filter
- liquid
- channel
- annular groove
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Abstract
The utility model discloses a large-quantity back wash filter, which comprises a valve body and filter cartridges. A left filtrate channel and a right filtrate channel are arranged in the valve body, the left filtrate channel and the right filtrate channel are respectively provided with a filter cartridge, and outlets and liquid outlets of the two filter cartridges are mutually communicated. The left filtrate channel and the right filtrate channel are further provided with thread retaining rings and thread plugs, and each thread retaining ring is provided with a ring groove which is provided with an annular sealing ring arranged between the thread retaining groove and the inner wall of the corresponding filtrate channel. The filter cartridges are internally arranged on the inner lateral ends of the left filtrate channel and the right filtrate channel, the outlet ends of the filter cartridges are fixed through the thread retaining rings in compression joint mode, and the outer lateral ends of the left filtrate channel and the right filtrate channel are sealed through the thread plugs in screw joint mode. The large-quantity back wash filter has the advantages of being simple in structure and good in sealing performance.
Description
Technical field
The utility model belongs to the coal mine equipment technical field, is specifically related to a kind of big flow backwash filter that is used for hydraulic support.
Background technique
The working medium of mine hydraulic bracket is an emulsified liquid, the turbidity test of emulsified liquid are very big to the influence in working life of the whole hydraulic system of each oil hydraulic cylinder, each valve group and support of hydraulic support, impurity in the emulsified liquid can cause the hydraulic support operation ineffective, out of control, even damages.Therefore, must filter, and straight-through type filter commonly used a few days ago is because filter screen is easy to blocked emulsified liquid; use a period of time to change or to clean, changing or cleaning needs to shut down, and influence is produced; and very inconvenient, solve this technical problem so need use backwash filter.
Traditional backwash filter, the outboard end of its filter core exposes to the filtrate channel of valve body, and utilize the exposed junction of filter core that filter core is fixed in the filtrate channel, the shortcoming of this structure is: the comparatively complicated joint of structure need be set on filter core, and its difficulty of processing and cost are all higher.The sealing configuration of traditional backwash filter is sent out the dirt phenomenon of leakage easily when being used for big flow in addition.
Summary of the invention
The purpose of this utility model provides that a kind of structure is comparatively simplified, the big preferably flow backwash filter of sealability.
The technological scheme that realizes the utility model purpose is: a kind of big flow backwash filter comprises valve body and filter core; Described valve body front side end offers that liquid entering hole, rear side end offer liquid outlet, left-hand end offers left liquid return hole, and right-hand end is provided with right liquid return hole; Also be provided with left filtrate channel and right filtrate channel in the described valve body; The import of described left filtrate channel and liquid entering hole and left liquid return hole are communicated with, and are provided with steel ball shape changeover valve core between the import of left filtrate channel and the liquid entering hole; The import of described right filtrate channel and liquid entering hole and right liquid return hole are communicated with, and are provided with steel ball shape changeover valve core between the import of right filtrate channel and the liquid entering hole; Respectively be provided with a filter core in described left filtrate channel and the right filtrate channel, the outlet and the liquid outlet of these two filter cores communicate with each other; Also be provided with threaded collar and screw plug in described left filtrate channel and the right filtrate channel; Described threaded collar outer wall is provided with annular groove, also is provided with an annular seal ring between threaded collar and filtrate channel inwall of living in this annular groove; Described filter core is built in the medial extremity of left filtrate channel and right filtrate channel, and the outlet end of described filter core is fixed by the threaded collar crimping, and the outboard end of described left filtrate channel and right filtrate channel is by the screw plug sealing that is spirally connected.
In the such scheme, described screw plug outer wall is provided with annular groove, also is provided with an annular seal ring between screw plug and filtrate channel inwall of living in this annular groove.
The utlity model has positive effect:
(1) in the utility model, also is provided with threaded collar and screw plug in described left filtrate channel and the right filtrate channel; Described threaded collar outer wall is provided with annular groove, also is provided with an annular seal ring between threaded collar and filtrate channel inwall of living in this annular groove; Described filter core is built in the medial extremity of left filtrate channel and right filtrate channel, and the outlet end of described filter core is fixed by the threaded collar crimping, and the outboard end of described left filtrate channel and right filtrate channel is by the screw plug sealing that is spirally connected.This kind structure be owing in the existence of seal ring, can obtain comparatively good sealing effect, even under up to 1200ml/ minute flow, also can fully guarantee its usability.
(2) in the utility model, described screw plug outer wall is provided with annular groove, also is provided with an annular seal ring between screw plug and filtrate channel inwall of living in this annular groove.This structure can realize the secondary seal to filtrate channel, thereby has further sealing effect.
Description of drawings
Fig. 1 is a kind of side view of the present utility model;
Fig. 2 is the sectional view of backwash filter shown in Figure 1 along the A-A line.
Be labeled as shown in the accompanying drawing: valve body 1, liquid entering hole 11, liquid outlet 12, left side liquid return hole 13, right liquid return hole 14, left filtrate channel 15, import 151, right filtrate channel 16, import 161, changeover valve core 17, changeover valve core 18, filter core 2, outlet 21, threaded collar 3, screw plug 4, annular seal ring 5, seal ring 6.
Embodiment
(embodiment 1)
Fig. 1 and Fig. 2 have shown a kind of embodiment of the present utility model, and wherein Fig. 1 is a kind of side view of the present utility model; Fig. 2 is the sectional view of backwash filter shown in Figure 1 along the A-A line.
Present embodiment is a kind of 1200ml/ minute backwash filter that is used for hydraulic equipment under the coal mine, comprises valve body 1 and filter core 2; Described valve body front side end offers that liquid entering hole 11, rear side end offer liquid outlet 12, left-hand end offers left liquid return hole 13, and right-hand end is provided with right liquid return hole 14; Also be provided with left filtrate channel 15 and right filtrate channel 16 in the described valve body 1; The import 151 of described left filtrate channel 15 and liquid entering hole 11 and left liquid return hole 13 are communicated with, and are provided with steel ball shape changeover valve core 17 between the import 151 of left filtrate channel 15 and the liquid entering hole 11; The import 161 of described right filtrate channel 16 and liquid entering hole 11 and right liquid return hole 14 are communicated with, and are provided with steel ball shape changeover valve core 18 between the import 161 of right filtrate channel 16 and the liquid entering hole 11; Respectively be provided with a filter core 2 in described left filtrate channel 15 and the right filtrate channel 16, the outlet 21 and the liquid outlet 12 of these two filter cores 2 communicate with each other; Also be provided with threaded collar 3 and screw plug 4 in described left filtrate channel 15 and the right filtrate channel 16; Described threaded collar 3 outer walls are provided with annular groove, also are provided with an annular seal ring 5 between threaded collar 3 and filtrate channel inwall of living in this annular groove; Described filter core 2 is built in the medial extremity of left filtrate channel 15 and right filtrate channel 16, and the outlet end of described filter core 2 is fixed by threaded collar 3 crimping, and the outboard end of described left filtrate channel 15 and right filtrate channel 16 is by screw plug 4 sealing that is spirally connected.
Described screw plug 4 outer walls are provided with annular groove, also are provided with an annular seal ring 6 between screw plug 4 and filtrate channel inwall of living in this annular groove.
Present embodiment has positive effect:
(1) in the present embodiment, also is provided with threaded collar 3 and screw plug 4 in described left filtrate channel 15 and the right filtrate channel 16; Described threaded collar 3 outer walls are provided with annular groove, also are provided with an annular seal ring 5 between threaded collar 3 and filtrate channel inwall of living in this annular groove; Described filter core 2 is built in the medial extremity of left filtrate channel 15 and right filtrate channel 16, and the outlet end of described filter core 2 is fixed by threaded collar 3 crimping, and the outboard end of described left filtrate channel 15 and right filtrate channel 16 is by screw plug 4 sealing that is spirally connected.This kind structure has the advantage that structure is comparatively simplified, is easy to make, and owing in the existence of seal ring, can obtain comparatively good sealing effect, even under up to 1200ml/ minute flow, also can fully guarantee its usability.
(2) in the present embodiment, described screw plug 4 outer walls are provided with annular groove, also are provided with an annular seal ring 6 between screw plug 4 and filtrate channel inwall of living in this annular groove.This structure can realize the secondary seal to filtrate channel, thereby has further sealing effect.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (2)
1. one kind big flow backwash filter comprises valve body (1) and filter core (2); Described valve body front side end offers that liquid entering hole (11), rear side end offer liquid outlet (12), left-hand end offers left liquid return hole (13), and right-hand end is provided with right liquid return hole (14); Also be provided with left filtrate channel (15) and right filtrate channel (16) in the described valve body (1); The import (151) of described left filtrate channel (15) and liquid entering hole (11) and left liquid return hole (13) are communicated with, and are provided with steel ball shape changeover valve core (17) between the import (151) of left filtrate channel (15) and the liquid entering hole (11); The import (161) of described right filtrate channel (16) and liquid entering hole (11) and right liquid return hole (14) are communicated with, and are provided with steel ball shape changeover valve core (18) between the import (161) of right filtrate channel (16) and the liquid entering hole (11); Respectively be provided with a filter core (2) in described left filtrate channel (15) and the right filtrate channel (16), the outlet (21) and the liquid outlet (12) of these two filter cores (2) communicate with each other;
It is characterized in that: also be provided with threaded collar (3) and screw plug (4) in described left filtrate channel (15) and the right filtrate channel (16); Described threaded collar (3) outer wall is provided with annular groove, also is provided with an annular seal ring (5) that is positioned between threaded collar (3) and the filtrate channel inwall of living in this annular groove; Described filter core (2) is built in the medial extremity of left filtrate channel (15) and right filtrate channel (16), the outlet end of described filter core (2) is fixed by threaded collar (3) crimping, and the outboard end of described left filtrate channel (15) and right filtrate channel (16) is by screw plug (4) sealing that is spirally connected.
2. big flow backwash filter according to claim 1, it is characterized in that: described screw plug (4) outer wall is provided with annular groove, also is provided with an annular seal ring (6) that is positioned between screw plug (4) and the filtrate channel inwall of living in this annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200904192U CN202040155U (en) | 2011-03-31 | 2011-03-31 | Large-quantity back wash filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200904192U CN202040155U (en) | 2011-03-31 | 2011-03-31 | Large-quantity back wash filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040155U true CN202040155U (en) | 2011-11-16 |
Family
ID=44967601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200904192U Expired - Fee Related CN202040155U (en) | 2011-03-31 | 2011-03-31 | Large-quantity back wash filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040155U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291690A (en) * | 2013-05-29 | 2013-09-11 | 燕山大学 | Hydraulic system return oil filter device with flow measuring function |
| CN104132034A (en) * | 2014-07-22 | 2014-11-05 | 长治市永华机械有限公司 | Equidistributed angle hydraulic cylinder type motor with double backwashing filters |
| CN109519447A (en) * | 2018-11-28 | 2019-03-26 | 中国航空工业集团公司西安飞行自动控制研究所 | Reduce the servo valve oily filter skeleton structure of screw thread stress |
-
2011
- 2011-03-31 CN CN2011200904192U patent/CN202040155U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291690A (en) * | 2013-05-29 | 2013-09-11 | 燕山大学 | Hydraulic system return oil filter device with flow measuring function |
| CN103291690B (en) * | 2013-05-29 | 2015-04-29 | 燕山大学 | Hydraulic system return oil filter device with flow measuring function |
| CN104132034A (en) * | 2014-07-22 | 2014-11-05 | 长治市永华机械有限公司 | Equidistributed angle hydraulic cylinder type motor with double backwashing filters |
| CN104132034B (en) * | 2014-07-22 | 2016-09-21 | 山西凌志达煤业有限公司 | Equal distribution angle hydraulic cylinder type motor with backwash twinfilter |
| CN109519447A (en) * | 2018-11-28 | 2019-03-26 | 中国航空工业集团公司西安飞行自动控制研究所 | Reduce the servo valve oily filter skeleton structure of screw thread stress |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120331 |