CN220036916U

CN220036916U - Pressure relief structure of variable oil pump

Info

Publication number: CN220036916U
Application number: CN202321157619.4U
Authority: CN
Inventors: 董鸿义; 王静
Original assignee: Hangzhou Youpump Technology Co ltd
Current assignee: Hangzhou Youpump Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-11-17
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a variable oil pump pressure relief structure, which relates to the technical field of oil pumps and comprises an oil pump main body and a pressure relief valve casing, wherein one side of the oil pump main body is provided with a mounting groove, the pressure relief valve casing is fixedly arranged in the mounting groove, one end of the pressure relief valve casing is provided with an opening, the outside of the opening is propped against a baffle plate, the inside of the baffle plate is provided with a pressure limiting spring, one side of the pressure limiting spring is fixedly provided with a plugging ball, one side of the pressure relief valve casing, which is far away from the baffle plate, is provided with an oil drain hole, and the plugging ball is propped against the inside of the oil drain hole, and a connecting mechanism is arranged between the outside of the baffle plate and the outer wall of the oil pump. The utility model is convenient for disassembling the pressure relief assembly and replacing the internal parts thereof.

Description

Pressure relief structure of variable oil pump

Technical Field

The utility model relates to the technical field of oil pumps, in particular to a variable oil pump pressure relief structure.

Background

The existing oil pump is generally provided with a pressure relief valve, when the pressure inside the oil pump reaches a certain pressure, the pressure relief valve is opened, part of engine oil is shunted from the pressure relief valve, the pressure of the oil pump is reduced, and when the pressure is reduced below a limit value of the pressure relief valve, the pressure relief valve is closed.

The utility model discloses an oil pump pressure relief device, including relief valve, pressure limiting spring, steel ball, pressure limiting spring one end with the relief valve is connected, the other end with the steel ball is connected, still include with steel ball seat of steel ball looks adaptation, the steel ball seat is installed in the oil pump main part pressure release downthehole and with the steel ball is connected, still has the defect in this technical scheme:

the pressure limiting spring can become invalid gradually in the long-term use process in the technical scheme, so that the steel ball cannot be limited, and the pressure release valve in the technical scheme is of a closed structure, so that the pressure limiting spring in the pressure limiting valve is not convenient to replace independently, the whole pressure release valve needs to be replaced just, and materials are wasted very.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems with the conventional oil pump pressure relief device.

Therefore, the utility model aims to provide a pressure relief structure of a variable oil pump, which solves the problems that in the prior art, a pressure limiting spring in a pressure relief device of an oil pump gradually fails in the long-term use process, so that a steel ball cannot be limited, and in the technical scheme, the pressure relief valve is of a closed structure, so that the pressure limiting spring in the pressure relief device is not convenient to replace independently, the whole pressure relief valve needs to be replaced just, and materials are wasted.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a variable oil pump pressure release structure, includes oil pump main part and pressure release valve casing, the mounting groove has been seted up to one side of oil pump main part, pressure release valve casing fixed mounting is in the inside of mounting groove, the one end of pressure release valve casing is the opening setting, open-ended outside offsets and is provided with the baffle, the inboard of baffle is provided with the pressure limiting spring, the fixed shutoff ball that is provided with in one side of pressure limiting spring, the oil drain hole has been seted up to one side that the pressure release valve casing kept away from the baffle, the shutoff ball is inconsistent with the inboard of oil drain hole, be provided with coupling mechanism between the outside of baffle and the outer wall of oil pump; the connecting mechanism comprises a fixing plate and an inserting rod, wherein the fixing plate is arranged on two sides of the baffle and one end of the fixing plate is fixedly connected with the oil pump, fixing shells are fixedly arranged at two ends of the outer side of the baffle, a stop block is arranged on the inner wall of the fixing shells in a sliding mode, the inserting rod is fixedly sleeved in the inner portion of the stop block, one end of the inserting rod extends to the outer side of the fixing shell, an inserting hole is formed in the side wall of the fixing plate, one end of the outer side of the inserting rod is inserted into the inserting hole, a fixing pipe is fixedly arranged in the middle of the outer side of the baffle, a movable ring is movably sleeved on the outer wall of the fixing pipe, a fixing ring is fixedly sleeved at one end of the outer side of the inserting rod, a push rod is arranged between two sides of the movable ring and the corresponding fixing ring, two ends of the push rod are respectively connected with a connecting block through shaft pins in a rotating mode, cavities are formed in two sides of the middle end of the fixing pipe, and a limiting mechanism of the movable ring is fixedly arranged in the inner portion of the cavity.

Preferably, the limit mechanism comprises a sliding block and a clamping block, the sliding block is arranged in the cavity in a sliding mode, the clamping block is fixedly arranged on one side of the sliding block, one end of the clamping block extends to the outer side of the cavity, and one side of the clamping block is abutted to one side, away from the baffle, of the movable ring.

Preferably, the rod wall of the inserted link is movably sleeved with a first reset spring, and two ends of the first reset spring are fixedly connected with the corresponding stop block and the inner wall of the fixed shell respectively.

Preferably, a second reset spring is fixedly arranged on one side, away from the clamping block, of the sliding block, and the other end of the second reset spring is fixedly connected with the inner wall of the cavity.

Preferably, the cross sections of the stop block and the fixed shell are square.

Preferably, the cross section of the sliding block and the cavity is square.

Preferably, a sealing gasket is fixedly arranged on one side of the baffle close to the pressure relief valve casing.

In the technical scheme, the utility model has the technical effects and advantages that:

according to the utility model, the limit of the movable ring can be relieved by pushing the clamping blocks on two sides into the corresponding cavities, the movable ring is pulled to one side far away from the baffle, so that the two push rods tend to be vertical, namely, the limit of the two fixed rings is gradually relieved, the first reset spring gradually pushes the baffle block towards the direction of the fixed pipe, namely, the inserted link leaves from the corresponding jack, namely, the baffle can be separated from the pressure relief valve casing, and parts in the pressure relief valve casing are convenient to replace.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a pressure relief structure of a variable oil pump according to the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

fig. 3 is an enlarged schematic view of the structure of the part B in fig. 2.

Reference numerals illustrate:

1. an oil pump main body; 2. a pressure relief valve housing; 3. a blocking ball; 4. a pressure limiting spring; 5. a baffle; 6. a fixing plate; 7. a fixed case; 8. a stop block; 9. a rod; 10. a fixing ring; 11. a first return spring; 12. a movable ring; 13. a push rod; 14. a connecting block; 15. a shaft pin; 16. a slide block; 17. a clamping block; 18. a second return spring; 19. a sealing gasket; 20 securing the tube.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a variable oil pump pressure relief structure.

Example 1

Referring to fig. 1-3, a variable oil pump pressure release structure, including oil pump main part 1 and relief valve casing 2, the mounting groove has been seted up to one side of oil pump main part 1, the inside in the mounting groove is seted up to relief valve casing 2 fixed mounting, the one end of relief valve casing 2 sets up for the opening, open-ended outside offsets and is provided with baffle 5, the baffle 5 is close to the fixed sealed 19 that is provided with in one side of relief valve casing 2, improve the leakproofness between baffle 5 and the relief valve casing 2, the inboard of baffle 5 is provided with pressure limiting spring 4, pressure limiting spring 4's one side is fixed to be provided with shutoff ball 3, the oil drain hole has been seted up to one side that relief valve casing 2 kept away from baffle 5, shutoff ball 3 is inconsistent with the inboard of oil drain hole.

Example two

Referring to fig. 1-3, be provided with coupling mechanism between the outside of baffle 5 and the outer wall of oil pump, coupling mechanism includes fixed plate 6 and inserted bar 9, fixed plate 6 sets up in the both sides and the one end of baffle 5 all with oil pump fixed connection, the outside both ends of baffle 5 are all fixed and are provided with fixed shell 7, the inner wall slip of fixed shell 7 is provided with dog 8, the cross section of dog 8 and fixed shell 7 is square, make dog 8 unable rotation, can stable slip, the inside in dog 8 is cup jointed to the fixed rod 9, the one end of inserted bar 9 extends to the outside of fixed shell 7, the pole wall activity of inserted bar 9 cup joints first reset spring 11, the both ends of first reset spring 11 respectively with the inner wall fixed connection who corresponds dog 8 and fixed shell 7, make things convenient for dog 8 to reset, the jack has been seted up to the lateral wall of fixed plate 6, the outside one end and the jack grafting of inserted bar 9, the outside middle part of baffle 5 is fixed and is provided with fixed pipe 20, the outer wall activity cover of fixed pipe 20 is equipped with the expansion ring 12, the outside one end of inserted bar 9 is fixed cup jointed solid fixed ring 10, the expansion ring 12 both sides and the solid fixed ring 10 that correspond between the fixed ring 10, the fixed ring 13 is provided with the expansion ring 13 and the fixed connection piece that all is connected with the expansion ring of 13 through the corresponding connection of 13 with a plurality of expansion rings 13, one side and 13, one side of connecting pieces and 13 respectively, one side of connecting pieces are connected respectively.

Example III

Referring to fig. 1-3, the cavity is all seted up to the middle-end both sides of fixed pipe 20, the inside of cavity is provided with the stop gear of fixed expansion ring 12, stop gear includes slider 16 and fixture block 17, slider 16 slides and sets up in the inside of cavity, the fixture block 17 is fixed to be set up in one side of slider 16, the one end of fixture block 17 extends to the outside of cavity, one side of fixture block 17 is inconsistent with the expansion ring 12 one side of keeping away from baffle 5, slider 16 is kept away from the fixed second reset spring 18 that is provided with in one side of fixture block 17, the other end and the inner wall fixed connection of cavity of second reset spring 18, make things convenient for slider 16 to reset, slider 16 and the cross section of cavity are square, make slider 16 unable rotation, can stable slip.

In the utility model, when the pressure relief valve is used, the clamping blocks 17 on two sides are pushed into the corresponding cavities, namely the limit on the movable ring 12 can be relieved, the movable ring 12 is pulled to one side far away from the baffle plate 5, so that the two push rods 13 tend to be vertical, namely the limit on the two fixed rings 10 is gradually relieved, the first return spring 11 gradually pushes the stop block 8 towards the direction of the fixed pipe 20, namely the inserted link leaves from the jack corresponding to 9, namely the baffle plate 5 can be separated from the pressure relief valve casing 2, namely the parts in the pressure relief valve casing 2 are conveniently replaced.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a variable oil pump pressure release structure, includes oil pump main part (1) and relief valve casing (2), a serial communication port, the mounting groove has been seted up to one side of oil pump main part (1), relief valve casing (2) fixed mounting is in the inside of mounting groove, the one end of relief valve casing (2) is the opening setting, open-ended outside offsets and is provided with baffle (5), the inboard of baffle (5) is provided with pressure limiting spring (4), pressure limiting spring (4) one side is fixed to be provided with shutoff ball (3), the oil drain hole has been seted up to one side that baffle (5) were kept away from to relief valve casing (2), shutoff ball (3) are inconsistent with the inboard of oil drain hole, be provided with coupling mechanism between the outside of baffle (5) and the outer wall of oil pump;

the connecting mechanism comprises a fixed plate (6) and an inserting rod (9), wherein the fixed plate (6) is arranged on two sides of a baffle plate (5) and one end of the fixed plate is fixedly connected with an oil pump, a fixed shell (7) is fixedly arranged at two ends of the outer side of the baffle plate (5), a stop block (8) is arranged on the inner wall of the fixed shell (7) in a sliding mode, the inserting rod (9) is fixedly sleeved in the stop block (8), one end of the inserting rod (9) extends to the outer side of the fixed shell (7), a jack is formed in the side wall of the fixed plate (6), one end of the outer side of the inserting rod (9) is spliced with the jack, a fixed pipe (20) is fixedly arranged in the middle of the outer side of the baffle plate (5), a movable ring (12) is movably sleeved on the outer wall of the fixed pipe (20), a fixed ring (10) is fixedly sleeved at one end of the outer side of the inserting rod (9), push rods (13) are fixedly arranged between two sides of the movable ring (12) and the corresponding fixed ring (10), two ends of each push rod (13) are rotatably connected with a plurality of shaft pins (15), one sides of the movable ring (14) are fixedly connected with one side of the fixed pipe (20) respectively, one side of the fixed pipe (12) is fixedly connected with one side of the movable ring (12), and a limiting mechanism for fixing the movable ring (12) is arranged in the cavity.

2. The variable oil pump pressure release structure according to claim 1, wherein the limiting mechanism comprises a sliding block (16) and a clamping block (17), the sliding block (16) is slidably arranged in the cavity, the clamping block (17) is fixedly arranged on one side of the sliding block (16), one end of the clamping block (17) extends to the outer side of the cavity, and one side of the clamping block (17) is abutted against one side of the movable ring (12) away from the baffle plate (5).

3. The variable oil pump pressure release structure according to claim 1, characterized in that the rod wall of the inserted rod (9) is movably sleeved with a first return spring (11), and two ends of the first return spring (11) are fixedly connected with the corresponding stop block (8) and the inner wall of the fixed shell (7) respectively.

4. The variable oil pump pressure relief structure according to claim 2, characterized in that a second return spring (18) is fixedly arranged on one side of the sliding block (16) away from the clamping block (17), and the other end of the second return spring (18) is fixedly connected with the inner wall of the cavity.

5. Variable oil pump pressure relief structure according to claim 1, characterized in that the cross section of the stop (8) and the fixed housing (7) is square.

6. A variable oil pump relief structure according to claim 2, characterized in that the cross section of the slider (16) and the cavity is square.

7. The variable oil pump pressure relief structure according to claim 1, characterized in that a gasket (19) is fixedly arranged on the side of the baffle plate (5) close to the pressure relief valve casing (2).