CN213375362U

CN213375362U - Oil return filter for oil tank of high-pressure pump

Info

Publication number: CN213375362U
Application number: CN202021164303.4U
Authority: CN
Inventors: 邓小军
Original assignee: Qingdao Tuhuite Electromechanical Technology Co ltd
Current assignee: Qingdao Tuhuite Electromechanical Technology Co ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-06-08
Anticipated expiration: 2030-06-20

Abstract

The utility model discloses a high-pressure pump oil tank oil return filter, plug, filter core, upper seal circle and lower seal circle under plug, cartridge filter, oil return on last oil return, the cartridge filter is connected to the plug bottom on the oil return, and the seal circle is placed to the kneck of plug and cartridge filter on the oil return, is equipped with the filter core in the cartridge filter, and the plug is connected under the oil return to the cartridge filter bottom, and the connector department of plug is equipped with the lower seal circle under cartridge filter and the oil return. The utility model discloses a high-pressure pump oil tank oil return filter installs on the oil tank, and the fuel of backward flow can filter in the plug gets into the cartridge filter under through the oil return, later can get back to the oil tank through the plug on the oil return, guarantees that the oily quality is pure, has convenient washing or change, and the characteristics that the filter effect is good are the filter that is fit for the high-pressure pump oil tank.

Description

Oil return filter for oil tank of high-pressure pump

Technical Field

The utility model relates to an oil tank filters technical field, specifically is a high-pressure pump oil tank oil return filter.

Background

The high-pressure pump is a device for providing powerful power for machinery, mainly depends on fuel drive conversion, but the fuel will flow back when not used completely, because used oil, there is impurity during the backward flow, impurity can influence the quality of surplus oil without processing, and then influence the performance of high-pressure pump, so need the filter, the filter mostly exists difficult washing at present, the not high problem of filtration quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-pressure pump oil tank oil return filter has convenient washing, and the problem among the prior art can be solved to the advantage that the precision is high.

In order to achieve the above object, the utility model provides a following technical scheme: a high-pressure pump oil tank oil return filter comprises an upper oil return upper plug, a filter cylinder, an oil return lower plug, a filter element, an upper sealing ring and a lower sealing ring, wherein the bottom end of the oil return upper plug is connected with the filter cylinder;

the oil return upper plug consists of a top cover, an outer connecting layer, an inner connecting layer and a first groove, wherein the top end of the top cover is connected with the outer connecting layer, the bottom end of the outer connecting layer is connected with the inner connecting layer, and the first groove is formed in the middle of the top cover;

the oil return lower plug is composed of a base, a sealing layer, an end and a second groove, the sealing layer is connected to the upper side of the base, the end is fixed to the sealing layer, and the second groove is machined in the middle of the base.

Preferably, the outer connecting layer, the inner connecting layer, the sealing layer, the end socket, the inner wall of the first groove and the inner walls of the ports at the two ends of the filter cylinder are provided with threads.

Preferably, the oil return lower plug is an inlet, the oil return upper plug is an outlet, and a filter element is arranged in front of the inner connecting layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a high-pressure pump oil tank oil return filter installs on the oil tank, and the fuel of backward flow can filter in the plug gets into the cartridge filter under through the oil return, later can get back to the oil tank through the plug on the oil return, guarantees that the oily quality is pure, has convenient washing or change, and the characteristics that the filter effect is good are the filter that is fit for the high-pressure pump oil tank.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the return oil upper plug of the utility model;

fig. 3 is a schematic structural view of the oil return lower plug of the utility model;

FIG. 4 is an external view of the present invention;

fig. 5 is a top view of the present invention;

fig. 6 is a half sectional view of the present invention.

In the figure: 1. oil return and plug screwing; 101. a top cover; 102. an outer tie layer; 103. an inner connection layer; 104. a first groove; 3. oil return lower plug; 301. a base; 302. a sealing layer; 303. a tip; 304. a second groove; 2. a filter cartridge; 4. a filter element; 5. an upper sealing ring; 6. and a lower sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a high-pressure pump oil tank oil return filter comprises an upper oil return plug 1, a filter cartridge 2, a lower oil return plug 3, a filter core 4, an upper seal ring 5 and a lower seal ring 6, wherein the bottom end of the upper oil return plug 1 is connected with the filter cartridge 2, the filter cartridge 2 is a filter main body and supports the whole structure, the upper seal ring 5 is arranged at the interface of the upper oil return plug 1 and the filter cartridge 2, the upper seal ring 5 is used for ensuring the sealing of the interface of the upper oil return plug 1 and the filter cartridge 2, the filter core 4 is arranged in the filter cartridge 2, the filter core 4 is a main filtering facility, the lower oil return plug 3 is connected with the bottom end of the filter cartridge 2, the lower oil return plug 3 is an inlet, the upper oil return plug 1 is an outlet, the filter core 4 is arranged in front of an inner connecting layer 103, the end head 303 is not arranged, the structures are main filtering channels, the complete filtering of, the oil return upper plug 1 is composed of a top cover 101, an outer connecting layer 102, an inner connecting layer 103 and a first groove 104, the top end of the top cover 101 is connected with the outer connecting layer 102, the outer connecting layer 102 is used for being connected with a high-pressure pump, the bottom end of the outer connecting layer 102 is connected with the inner connecting layer 103, the inner connecting layer 103 is connected with the filter cartridge 2, the first groove 104 is processed in the middle of the top cover 101, the first groove 104 is an oil outlet, the oil return lower plug 3 is composed of a base 301, a sealing layer 302, an end 303 and a second groove 304, the upper side of the base 301 is connected with the sealing layer 302, the sealing layer 302 is fixed with the end 303, the second groove 304 is processed in the middle of the base 301, the second groove 304 is an oil inlet, and the outer connecting layer, the inner connecting layer 103, the sealing layer 302, the end head 303, the inner wall of the first groove 104 and the inner wall of the port at the two ends of the filter cartridge 2 are provided with threads, and the threads are used for cracking and connecting.

The working principle is as follows: the returned fuel enters the filter cartridge 2 through the second groove 304 of the return lower plug 3 and exits from the first groove 104 of the return upper plug 1 through filtration by the filter element 4.

In summary, the following steps: the utility model discloses a high-pressure pump oil tank oil return filter installs on the oil tank, and the fuel of backward flow can filter in the plug 3 gets into cartridge filter 2 under through the oil return, later can get back to the oil tank through plug 1 on the oil return, guarantees that the oily quality is pure, has convenient washing or change, and the characteristics that the filter effect is good are a filter that is fit for the high-pressure pump oil tank.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-pressure pump oil tank oil return filter, includes plug (1), cartridge filter (2), oil return plug (3), filter core (4), upper seal circle (5) and lower seal circle (6) under the oil return, its characterized in that: the bottom end of the oil return upper plug (1) is connected with the filter cylinder (2), an upper sealing ring (5) is arranged at the joint of the oil return upper plug (1) and the filter cylinder (2), a filter core (4) is arranged in the filter cylinder (2), the bottom end of the filter cylinder (2) is connected with the oil return lower plug (3), and a lower sealing ring (6) is arranged at the joint of the filter cylinder (2) and the oil return lower plug (3);

the oil return upper plug (1) consists of a top cover (101), an outer connecting layer (102), an inner connecting layer (103) and a first groove (104), wherein the top end of the top cover (101) is connected with the outer connecting layer (102), the bottom end of the outer connecting layer (102) is connected with the inner connecting layer (103), and the first groove (104) is processed in the middle of the top cover (101);

the oil return lower plug (3) is composed of a base (301), a sealing layer (302), an end head (303) and a second groove (304), the sealing layer (302) is connected to the upper side of the base (301), the end head (303) is fixed to the sealing layer (302), and the second groove (304) is machined in the middle of the base (301).

2. The high-pressure pump oil tank return oil filter of claim 1, wherein: the outer connecting layer (102), the inner connecting layer (103), the sealing layer (302), the end head (303), the inner wall of the first groove (104) and the inner walls of the ports at the two ends of the filter cartridge (2) are provided with threads.

3. The high-pressure pump oil tank return oil filter of claim 1, wherein: the oil return lower plug (3) is an inlet, the oil return upper plug (1) is an outlet, and the filter element (4) is arranged in front of the inner connecting layer (103).