CN210799071U - Simple bypass valve structure - Google Patents

Abstract

The utility model discloses a simple and easy bypass valve structure belongs to the automobile parts field, including the valve body shell form an inner chamber in the valve body shell, the intracavity is equipped with the differential pressure valve, the compression spring who is used for controlling the oil pressure threshold value is installed to differential pressure valve upper end, the compression spring bottom is equipped with the fender ring that is used for supporting compression spring, it connects to keep off ring fixed connection on the inner chamber inner wall, be equipped with the oilhole that is used for crossing oil on keeping off the ring, be equipped with the clamp plate that is used for bearing the oil pressure on the differential pressure valve, the clamp plate is located keep off ring downside and closing cap the oilhole, because the spring is located differential pressure valve upper end, only need install in proper order and keep off ring, differential pressure valve, spring and can realize the bypass valve installation, simple to operate, installation cost are low to when needing to adjust the bypass valve threshold value, can carry out quick replacement to, The problem of inconvenient threshold value adjustment.

Description

Simple bypass valve structure

Technical Field

The utility model relates to an automobile parts especially relates to a simple and easy bypass valve structure.

Background

The oil filter is the equipment that is used for filtering the machine oil on the automobile engine, when filter assembly takes place the jam, in order to avoid not having the machine oil in the engine and leading to dry friction, sets up the bypass valve on the oil filter, if the oil filter in because the jam leads to the oil pressure to increase, machine oil can get into the engine from the bypass valve.

When the filter paper with different filtering precision is used by the oil filter, the internal oil pressure is different, when the filter paper with higher replacing precision of the oil filter is used, the bypass valve is abnormally opened due to the increase of the oil pressure, so that the oil filter cannot play a role, the threshold value of the opening and closing of the bypass valve is determined by a spring in the bypass valve, the existing bypass valve spring is installed on the inner side of the bypass valve, and if the spring is replaced, the bypass valve needs to be completely disassembled, so that the operation is complex.

For example, the "oil filter bypass valve" disclosed in chinese patent document, whose publication number is CN201720105307.7, includes a bypass valve spring, a bypass valve plate, and a bypass valve seat, but has disadvantages that the bypass valve spring is installed inside the bypass valve plate, and when it is necessary to change the threshold value of opening and closing of the bypass valve, the entire bypass valve needs to be removed and the spring therein needs to be replaced, which is complicated in operation and high in replacement cost.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art oil cleaner, because the spring is located the bypass valve inboard, when the threshold value of bypass valve switching is changed to needs, need pull down whole bypass valve, the operation is complicated, the replacement is with high costs, provides a simple and easy bypass valve structure, when the threshold value of bypass valve switching is changed to needs, need not to pull down whole bypass valve, convenient operation, replacement are with low costs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model relates to a simple and easy bypass valve structure, including the valve body shell, form an inner chamber in the valve body shell, the intracavity is equipped with the differential pressure valve, install compression spring on the differential pressure valve, can dismantle between compression spring upper end and the differential pressure valve upper end and be connected, the compression spring bottom is equipped with the fender ring that is used for supporting compression spring, it connects to keep off ring fixed connection on the inner chamber inner wall, be equipped with the oilhole that is used for crossing oil on keeping off the ring, be equipped with the clamp plate that is used for bearing the oil pressure on the differential pressure valve, the clamp plate is located keep off ring downside and closing cap the oilhole.

Because the oil pressure when the differential pressure valve is opened is decided by the pretightning force of the compression spring and the size of the oil hole, when the threshold value of the differential pressure valve is required to be changed, only the compression spring needs to be replaced to change the pretightning force, the spring is connected to the upper end of the differential pressure valve, the spring can be replaced without detaching the differential pressure valve, and the replacement operation is simpler.

Preferably, the upper end of the differential pressure valve is provided with a spring groove for fixing the spring, and the upper end of the compression spring is provided with a fixed rod inserted in the spring groove; the spring is connected with the differential pressure valve in an inserting mode, so that the disassembly is not needed by using tools, and the disassembly is more convenient.

Preferably, the spring groove comprises an entry groove which is perpendicular to the upper end surface of the differential pressure valve and used for plugging the fixing rod into the spring groove, the bottom of the entry groove is connected with a rotating groove which is used for accommodating the fixing rod to rotate by taking the axis of the differential pressure valve as a shaft, and the rotating groove is connected with a fixing groove which is perpendicular to the upper end surface of the differential pressure valve and used for abutting against the upper part of the fixing rod; the dead lever of spring gets into from getting into the groove and rotates the groove, supports on the fixed slot after rotating certain angle, and is fixed reliable through this kind of mode spring, is difficult for deviating from the differential pressure valve.

Preferably, the oil holes are a plurality of arc waist holes uniformly distributed in the circumferential direction of the baffle ring, and the oil holes are uniformly distributed in the circumferential direction of the baffle ring, so that the force applied to the baffle plate is uniform in the circumferential direction, and the baffle plate is prevented from inclining due to unilateral stress.

Preferably, the oil holes comprise an outer ring oil hole and an inner ring oil hole, an inner ring plug which is in adaptive insertion connection with the inner ring oil hole is arranged on the upper side face of the pressing plate, when the oil pressure is small, the baffle moves downwards slightly, the engine oil flows out of the outer ring oil hole, the inner ring oil hole is blocked by the inner ring plug, the engine oil flowing through the bypass valve is small, part of the engine oil is filtered by the filter paper, when the filter paper of the filter is seriously blocked, the oil pressure is large, the downward movement amount of the baffle is large, the inner ring plug is separated from the inner ring oil hole, the flow of the engine oil passing through the bypass valve is increased, and.

Preferably, a cavity for improving the flexibility of the differential pressure valve is arranged in the differential pressure valve, an opening is formed in the bottom of the differential pressure valve, an open groove penetrating through the radial direction of the differential pressure valve is formed in the bottom of the opening, and when the differential pressure valve is installed, the open groove can be folded when being extruded, so that the pressing plate directly passes through the retaining ring, and the installation is more convenient.

Preferably, the baffle ring is in a circular ring shape, an upward-turned hem is arranged on the inner ring of the baffle ring, the hem is located between the compression spring and the differential pressure valve, and the hem can play a role in guiding the differential pressure valve and the spring to prevent the differential pressure valve and the spring from inclining in the bypass valve structure.

Therefore, the utility model discloses following beneficial effect has: (1) when the valve value of the bypass valve needs to be changed, the change can be realized by quickly replacing the spring, the operation is convenient, and the replacement cost is low; (2) the differential pressure valve is stressed uniformly, and the working is more stable (3), and double-stage control under different oil pressures can be realized through the outer ring oil hole and the inner ring oil hole.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a left side sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a top view of the present invention.

In the figure: 1. the valve body comprises a valve body shell 2, an inner cavity 3, a differential pressure valve 31, a pressure plate 32, a spring groove 321, an inlet groove 322, a rotating groove 323, a fixing groove 4, a compression spring 41, a fixing rod 5, a baffle ring 51, an outer ring oil hole 52 and an inner ring oil hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1-4, a simple bypass valve structure comprises a valve body housing 1, an inner cavity 2 is formed in the valve body housing, a differential pressure valve 3 is arranged in the inner cavity, a compression spring 4 is mounted on the differential pressure valve, the upper end of the compression spring is detachably connected with the upper end of the differential pressure valve, a retaining ring 5 for abutting against the compression spring is arranged at the bottom of the compression spring, the retaining ring is fixedly connected to the inner wall of the inner cavity, an oil hole for passing oil is formed in the retaining ring, a pressure plate 31 for bearing oil pressure is arranged on the differential pressure valve, and the pressure plate is located on the lower side of the retaining ring and covers the oil hole; the inner wall of the inner cavity is provided with an annular groove for fixing the baffle ring; the upper end of the differential pressure valve is provided with a spring groove 32 for fixing a spring, the upper end of the compression spring is provided with a fixed rod 41 inserted in the spring groove, and the direction of the fixed rod is the radial direction of the compression spring; the spring groove comprises an inlet groove 321 which is perpendicular to the upper end face of the differential pressure valve and used for plugging the fixing rod into the spring groove, the bottom of the inlet groove is connected with a rotating groove 322 which is used for accommodating the fixing rod to rotate by taking the axis of the differential pressure valve as a shaft, the rotating groove is connected with a fixing groove 323 which is perpendicular to the upper end face of the differential pressure valve and used for abutting against the upper part of the fixing rod, the penetrating direction of the inlet groove and the fixing groove is the radial direction of the differential pressure valve, and the included angle is 30 degrees; the oil holes are a plurality of arc waist holes uniformly distributed in the circumferential direction of the baffle ring; the oil holes comprise an outer ring oil hole 51 and an inner ring oil hole 52, an inner ring plug 311 which is in adaptive insertion connection with the inner ring oil hole is arranged on the upper side surface of the pressure plate, and in the embodiment, the outer ring oil hole and the inner ring oil hole are respectively 3 arc-shaped waist holes; the inner part of the differential pressure valve is provided with a cavity 33 for improving the flexibility of the differential pressure valve, the bottom of the differential pressure valve is provided with an opening 331, the bottom of the opening is provided with an open slot 332 penetrating through the radial direction of the differential pressure valve, and the lower side of the outer edge of the baffle of the differential pressure valve is provided with a chamfer facilitating the baffle to be plugged from the baffle ring; the baffle ring is in a ring shape, a folded edge which is turned upwards is arranged on the inner ring of the baffle ring, the folded edge is positioned between the compression spring and the differential pressure valve, and the folded edge is in a ring shape.

When the bypass valve is installed, the baffle ring is obliquely placed into the inner cavity and then rotated to be horizontal, so that the baffle ring is clamped in the annular wall of the inner cavity; then the differential pressure valve is plugged in from the middle of the baffle ring, and in the plugging process, the open slot is folded to enable the entering process to be more convenient and labor-saving; selecting a proper compression spring according to the oil pressure required by the start of the bypass valve, so that the compression spring has a certain pretightening force after being installed on the differential pressure valve; after the fixed rod of the compression spring enters the rotating groove from the entering groove, the spring is rotated to enable the fixed rod to be in the same direction with the fixed groove, the spring is loosened, and the compressed spring can enable the fixed rod to be abutted against the fixed groove; when the spring needs to be replaced, the spring is pressed down by hands and then rotated, so that the direction of the fixing rod is the same as the direction of the fixing rod entering the groove, and the spring can be detached by loosening the spring.

When the pressure obtained by multiplying the oil pressure by the area of the oil hole exceeds the pretightening force of the spring, the differential pressure valve moves downwards, the spring is further compressed, a gap is formed between the pressure plate and the baffle ring, and engine oil flows out of the oil hole of the outer ring; when the oil pressure is further increased, the differential pressure valve continues to move downwards until the inner ring plug leaves the inner ring oil hole, the engine oil can flow out of the outer ring oil hole and the inner ring oil hole simultaneously, and the flow of the bypass valve is increased.

Claims (7)

1. The utility model provides a simple and easy bypass valve structure, includes valve body shell (1), form an inner chamber (2) in the valve body shell, characterized by, the intracavity is equipped with differential pressure valve (3), install compression spring (4) on the differential pressure valve, can dismantle between compression spring upper end and the differential pressure valve upper end and be connected, compression spring installs the bottom and is used for supporting compression spring's fender ring (5), keep off ring fixed connection and be in on the inner chamber inner wall, keep off and be equipped with the oilhole that is used for crossing oil on the ring, be equipped with clamp plate (31) that are used for bearing the oil pressure on the differential pressure valve, the clamp plate is located keep off the ring downside and closing cap the oilhole.

2. A simple by-pass valve structure as claimed in claim 1, wherein the upper end of the differential pressure valve is provided with a spring groove (32) for fixing the spring, and the upper end of the compression spring is provided with a fixing rod (41) inserted in the spring groove.

3. The simple bypass valve structure as claimed in claim 2, wherein the spring groove comprises an inlet groove (321) perpendicular to the upper end surface of the differential valve for inserting the fixing rod into the spring groove, a rotating groove (322) for accommodating the fixing rod to rotate around the axis of the differential valve is connected to the bottom of the inlet groove, and a fixing groove (323) perpendicular to the upper end surface of the differential valve and used for abutting against the fixing rod is connected to the rotating groove.

4. The simple bypass valve structure as recited in claim 1, wherein the oil hole is a plurality of arc-shaped waist holes uniformly distributed around the retaining ring.

5. The simple bypass valve structure as claimed in claim 1, wherein the oil hole comprises an outer ring oil hole (51) and an inner ring oil hole (52), and an inner ring plug (311) is disposed on the upper side of the pressure plate and is adapted to the inner ring oil hole.

6. A simple by-pass valve structure according to any one of claims 1-5 characterized in that the differential pressure valve is provided with a cavity (33) inside for increasing the flexibility of the differential pressure valve, the cavity is provided with an opening (331) at the bottom of the differential pressure valve, and the bottom of the opening is provided with an open slot (332) penetrating the radial direction of the differential pressure valve.

7. A simple by-pass valve structure according to any one of claims 1 to 5 wherein the retaining ring is circular and has an upturned flange on its inner periphery, said flange being located between the compression spring and the differential pressure valve.

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