Oil product filter

Abstract

The utility model relates to the technical field of filters, in particular to an oil product filter which is provided with a cylinder body and a filter element in the cylinder body, and is particularly provided with an oil inlet hole horizontally formed in the side surface and an oil outlet hole vertically formed in the bottom, so that an oil path in the oil product filter is 90 degrees; on one hand, the connecting space of pipelines can be reduced to reduce the occupied space of a hydraulic system, and on the other hand, the contact area of hydraulic oil and the filter element can be increased to improve the filtering efficiency; in addition, the filter element is fixed by adopting the pressure spring, the top cover is disassembled, and the filter element can be disassembled, so that the operation is simple and rapid, and the maintenance cost and the maintenance difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an oil filter. Background Art

[0002] The oil cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. It has the advantages of simple structure and reliable operation. In order to ensure the normal operation of the oil cylinder, it is necessary to configure oil supply stations, oil filters and other components to form a hydraulic system.

[0003] The oil inlet and outlet holes of existing oil filters generally adopt a linear structure, which has the problem of low filtration efficiency. At the same time, the filter element is generally fixed with bolts, which increases the difficulty of filter element maintenance. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an oil filter.

[0005] The utility model adopts the following technical solutions:

[0006] An oil filter, comprising:

[0007] The cylinder body comprises a vertically penetrating cylinder body, a bottom cover fixed to the lower end of the cylinder body, and a top cover assembled to the upper end of the cylinder body; a horizontally arranged oil inlet hole is pierced through the side wall of the cylinder body, and a vertically arranged oil outlet hole is pierced through the bottom cover;

[0008] A filter assembly, the filter assembly comprising a filter element arranged inside the cylinder body, and a compression spring arranged at the upper end of the filter element; the filter element has a cavity inside, one end of the cavity is provided with an opening, the opening is consistent with the radius of the oil outlet hole and is connected to each other; the upper end of the compression spring is fixedly connected to the top cover, and the compression spring presses the filter element into the cylinder body.

[0009] Preferably, a flange is provided on the upper portion of the side wall of the barrel, the top cover is provided on the upper end of the flange, and a plurality of fastening bolts are provided between the flange and the top cover to realize assembly connection.

[0010] Preferably, a slot is recessed on the edge of the upper end surface of the bottom cover, and the lower end of the barrel is snap-connected in the slot.

[0011] Preferably, a boss is convexly provided on the lower end surface of the top cover, and the upper end of the barrel body is snap-connected with the boss.

[0012] Preferably, a first connecting piece is provided at the upper end of the filter element, a disc-shaped connecting portion is convexly provided on the upper end surface of the first connecting piece, and the lower end of the compression spring is fixed to the outer side of the connecting portion.

[0013] Preferably, a second annular connecting piece is provided at the lower end of the filter element, and a positioning ring extends from the lower end of the second connecting piece; a sealing ring extends from the upper end surface of the bottom cover; the positioning ring is sleeved on the outer side of the sealing ring to realize the connection between the oil outlet and the cavity, and the outer wall of the sealing ring is in close contact with the inner wall of the positioning ring.

[0014] Preferably, a joint is further included, the outer side of the joint is provided with threads, and the joint is connected to the oil outlet hole through threads.

[0015] Preferably, a fastening nut is provided on the outer side of the joint.

[0016] Preferably, a signal transmitter is provided above the cylinder body, a sensing part extends from the signal transmitter, a through hole is formed at the upper end of the top cover, and the sensing part penetrates into the through hole.

[0017] Preferably, the cylinder body and the filter element are both cylindrical.

[0018] The beneficial effects of the utility model are:

[0019] The oil filter involved in the utility model is provided with a cylinder body and a filter element in the cylinder body, and is specifically provided with an oil inlet hole horizontally arranged on the side and an oil outlet hole vertically arranged on the bottom, so that the oil path inside the oil filter is 90 degrees, which can reduce the connection space of the pipeline to reduce the occupied space of the hydraulic system on the one hand, and increase the contact area between the hydraulic oil and the filter element to improve the filtering efficiency on the other hand; in addition, a compression spring is used to fix the filter element, and the disassembly of the filter element can be completed by completing the disassembly of the top cover, which is simple and quick to operate, and reduces the maintenance cost and difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is an exploded schematic diagram of the first structure of the utility model;

[0022] Figure 3 This is an exploded schematic diagram of the second structure of the utility model;

[0023] Figure 4 It is a top view of the utility model;

[0024] Figure 5 for Figure 4 Section view along AA.

[0025] Numbers in the figure:

[0026] 10-cylinder body;

[0027] 11-body; 12-bottom cover; 121-slot; 122-sealing ring; 13-top cover; 131-boss; 132-perforation;

[0028] 14-oil inlet hole; 15-oil outlet hole; 16-flange; 17-fastening bolts;

[0029] 20- filtration component;

[0030] 21-filter element; 211-cavity; 212-opening; 213-first connecting member; 213a-connecting portion; 214-second connecting member; 214a-positioning ring;

[0031] 22-Compression spring;

[0032] 30-connector; 31-thread; 32-fastening nut;

[0033] 40-transmitter; 41-sensor unit. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 5As shown, the oil filter of the utility model comprises a cylinder body 10 and a filter assembly 20 arranged inside the cylinder body 10. The filter assembly 20 is used to filter out solid impurities in the hydraulic system, which has the advantages of high filtering quality and easy maintenance.

[0038] The cylinder body 10 includes a vertically penetrating barrel 11, a bottom cover 12 fixed to the lower end of the barrel 11, and a top cover 13 assembled to the upper end of the barrel 11. The bottom cover 12 is connected to the barrel 11 by welding. The side wall of the barrel 11 is provided with a horizontally arranged oil inlet hole 14, and the bottom cover 12 is provided with a vertically arranged oil outlet hole 15. Since the oil inlet hole 14 is arranged horizontally and the oil outlet hole 15 is arranged vertically, it is convenient to vertically arrange the hydraulic system pipeline and avoid using elbows. The flow route of the hydraulic oil is 90 degrees, which increases the contact area with the filter assembly 20, thereby improving the filtering quality.

[0039] The filter assembly 20 includes a filter element 21 disposed inside the cylinder body 10, and a compression spring 22 disposed at the upper end of the filter element 21; the filter element 21 has a cavity 211 therein, and an opening 212 is disposed at one end of the cavity 211, and the opening 212 is consistent with the radius of the oil outlet hole 15 and is connected to each other, and a filter hole is provided on the filter element 21, and the hydraulic oil enters the cavity 211 through the filter hole and is discharged through the opening 212 and the oil outlet hole 15, while solid impurities are blocked from passing through, thereby filtering the oil. The upper end of the compression spring 22 is fixedly connected to the top cover 13, and the lower end of the compression spring 22 is connected to the filter element 21, and the filter element 21 is compressed into the cylinder body 10 by the elastic force of the compression spring 22; after removing the top cover 13, the filter element 21 can be disassembled, which is convenient for disassembly and maintenance.

[0040] A further improvement to the above scheme is that a flange 16 is provided on the upper part of the side wall of the barrel 11, the top cover 13 is arranged on the upper end of the flange 16, and a plurality of fastening bolts 17 are provided between the flange 16 and the top cover 13 to realize assembly connection. Specifically, a groove 121 is concavely provided on the edge of the upper end surface of the bottom cover 12, and the lower end of the barrel 11 is clamped in the groove 121; a boss 131 is convexly provided on the lower end surface of the top cover 13, and the upper end of the barrel 11 is clamped with the boss 131.

[0041] A further improvement to the above scheme is that a first connecting member 213 is provided at the upper end of the filter element 21, a disc-shaped connecting portion 213a is convexly provided on the upper end surface of the first connecting member 213, and the lower end of the compression spring 22 is fixed to the outer side of the connecting portion 213a.

[0042] A further improvement to the above scheme is that a circular second connecting member 214 is provided at the lower end of the filter element 21, a positioning ring 214a extends from the lower end of the second connecting member 214, a sealing ring 122 extends from the upper end surface of the bottom cover 12, and the positioning ring 214a is sleeved on the outer side of the sealing ring 122 to realize the connection between the oil outlet 15 and the cavity 211. In order to ensure the sealing performance, the outer wall of the sealing ring 122 is in close contact with the inner wall of the positioning ring 214a.

[0043] A further improvement to the above scheme is that the oil filter also includes a joint 30, a thread 31 is provided on the outer side of the joint 30, the joint 30 is connected to the oil outlet 15 through the thread 31, and a fastening nut 32 is provided on the outer side of the joint 30, and the joint 30 is fixed to the lower end of the cylinder body 10 by the fastening nut 32.

[0044] A further improvement to the above scheme is that a transmitter 40 is provided above the cylinder body 10, and a sensing part 41 extends from the transmitter 40. A through hole 132 is formed at the upper end of the top cover 13, and the sensing part 41 extends into the through hole 132. The transmitter 40 detects the pressure inside the cylinder body 10. When the filter element 21 needs to be cleaned, the pressure inside the cylinder body 10 will increase, and the transmitter 40 outputs a cleaning signal to the outside.

[0045] A further improvement to the above solution is that the cylinder body 10 and the filter element 21 are both configured to be cylindrical.

[0046] Compared with the prior art, the oil filter involved in the utility model is provided with a cylinder body 10 and a filter element 21 in the cylinder body 10, and is specifically provided with an oil inlet hole 14 horizontally arranged on the side and an oil outlet hole 15 vertically arranged at the bottom, so that the oil path inside the oil filter is 90 degrees, which can reduce the connection space of the pipeline on the one hand to reduce the occupied space of the hydraulic system, and on the other hand, increase the contact area between the hydraulic oil and the filter element 21 to improve the filtering efficiency; in addition, the filter element 21 is fixed by a compression spring 22, and the disassembly of the filter element 21 can be completed by completing the disassembly of the top cover 13, which is simple and quick to operate, and reduces the maintenance cost and difficulty.

[0047] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. An oil filter, characterized in that: include: The cylinder body comprises a vertically penetrating cylinder body, a bottom cover fixed to the lower end of the cylinder body, and a top cover assembled to the upper end of the cylinder body; a horizontally arranged oil inlet hole is pierced through the side wall of the cylinder body, and a vertically arranged oil outlet hole is pierced through the bottom cover; A filter assembly, the filter assembly comprising a filter element arranged inside the cylinder body, and a compression spring arranged at the upper end of the filter element; the filter element has a cavity inside, one end of the cavity is provided with an opening, the opening is consistent with the radius of the oil outlet hole and is connected to each other; the upper end of the compression spring is fixedly connected to the top cover, and the compression spring presses the filter element into the cylinder body.

2. The oil filter according to claim 1, characterized in that: A flange is provided on the upper part of the side wall of the cylinder body, the top cover is provided on the upper end of the flange, and a plurality of fastening bolts are provided between the flange and the top cover to realize assembly connection.

3. The oil filter according to claim 1, characterized in that: The upper end surface edge of the bottom cover is concavely provided with a clamping groove, and the lower end of the barrel body is clamped in the clamping groove.

4. The oil filter according to claim 1, characterized in that: The lower end surface of the top cover is convexly provided with a boss, and the upper end of the barrel body is clamped with the boss.

5. The oil filter according to claim 1, characterized in that: A first connecting piece is disposed at the upper end of the filter element, a disc-shaped connecting portion is convexly disposed on the upper end surface of the first connecting piece, and the lower end of the compression spring is fixed to the outer side of the connecting portion.

6. The oil filter according to claim 1, characterized in that: A second annular connecting piece is provided at the lower end of the filter element, and a positioning ring extends from the lower end of the second connecting piece; a sealing ring extends from the upper end surface of the bottom cover; the positioning ring is sleeved on the outer side of the sealing ring to achieve communication between the oil outlet and the cavity, and the outer wall of the sealing ring is in close contact with the inner wall of the positioning ring.

7. The oil filter according to claim 1, characterized in that: It also includes a joint, the outer side of which is provided with threads, and the joint is connected to the oil outlet hole through the threads.

8. The oil filter according to claim 7, characterized in that: A fastening nut is arranged on the outer side of the joint.

9. The oil filter according to claim 1, characterized in that: A signal transmitter is arranged above the cylinder body, a sensing part is extended from the signal transmitter, a through hole is formed at the upper end of the top cover, and the sensing part penetrates into the through hole.

10. The oil filter according to claim 1, characterized in that: The cylinder body and the filter element are both cylindrical.

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