CN216157797U

CN216157797U - Reliable oil pumping structure

Info

Publication number: CN216157797U
Application number: CN202122124893.9U
Authority: CN
Inventors: 王洪刚
Original assignee: Hangzhou Guli Garden Machinery Co ltd
Current assignee: Hangzhou Guli Garden Machinery Co ltd
Priority date: 2021-09-04
Filing date: 2021-09-04
Publication date: 2022-04-01
Anticipated expiration: 2031-09-04

Abstract

The utility model relates to the technical field of oil pumping structures, in particular to a reliable oil pumping structure which comprises a pump shell, wherein an oil cavity is arranged in the pump shell, the pump shell is also provided with an oil inlet and an oil outlet, the oil inlet and the oil outlet are both communicated with the oil cavity, the oil pumping structure also comprises a plunger shaft, one end of the plunger shaft is movably inserted in the oil cavity, and the other end of the plunger shaft extends out of the oil cavity; the plunger shaft is provided with a notch at one end positioned in the oil cavity and also comprises a driving mechanism for driving the plunger shaft to rotate, when the notch rotates to the oil inlet, an oil suction cavity is formed between the notch and the oil inlet, and when the notch rotates to the oil outlet, an oil squeezing cavity is formed between the notch and the oil outlet; fixedly connected with end cam on the axis body of plunger shaft, the breach is kept away from to end cam's convex surface, and this reliable pump oil structure, the steerable degree that absorbs oil chamber and diminish, and then steerable oil output avoids oiling too much to cause the waste, perhaps oils too little and need to oil repeatedly many times.

Description

Reliable oil pumping structure

Technical Field

The utility model relates to the technical field of oil pumping structures, in particular to a reliable oil pumping structure.

Background

The chain saw is a portable saw using gasoline engine as power, mainly used for cutting wood and making timber, and its working principle is that the shearing action is implemented by means of the transverse movement of L-shaped blades staggered on the saw chain. The saw chain needs to oil it after long-time the use to the life of reinforcing saw chain, however, the pumping oil structure that present chain saw was used can not adjust oil output well, oils too much easily and causes the waste, perhaps oils too little and need oil repeatedly many times.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reliable oil pumping structure to solve the problems that the oil pumping amount cannot be well adjusted, excessive oiling is easy to cause waste, or too little oiling needs to be performed repeatedly in the conventional oil pumping structure for a chain saw in the background technology.

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

a reliable oil pumping structure comprises a pump shell, wherein an oil cavity is formed in the pump shell, an oil inlet and an oil outlet are formed in the pump shell, the oil inlet and the oil outlet are communicated with the oil cavity, the reliable oil pumping structure further comprises a plunger shaft, one end of the plunger shaft is movably inserted into the oil cavity, and the other end of the plunger shaft extends out of the oil cavity; the plunger shaft is provided with a notch at one end positioned in the oil cavity and also comprises a driving mechanism for driving the plunger shaft to rotate, when the notch rotates to the oil inlet, an oil suction cavity is formed between the notch and the oil inlet, and when the notch rotates to the oil outlet, an oil squeezing cavity is formed between the notch and the oil outlet; fixedly connected with end cam on the axis body of plunger axle, the breach is kept away from to end cam's convex surface, still includes the regulating spindle of fixed connection on the pump casing, is located to be connected with the pressure spring between breach and the end cam in the plunger axle, and the pressure spring makes end cam's convex surface butt in the one end of regulating spindle.

Preferably, the driving mechanism comprises a worm and a worm wheel, the worm is fixedly connected to the shaft body of the plunger shaft, the worm wheel is rotatably mounted on the pump housing, and the worm wheel is meshed with the worm.

Preferably, a shift lever is fixedly connected to the worm wheel.

Preferably, the worm wheel is provided with a groove, and one end of the deflector rod body is fixedly wound in the groove.

Preferably, one end of the pressure spring, which is close to the notch, is fixedly connected with a first gasket, one end of the pressure spring, which is close to the end face cam, is fixedly connected with a second gasket, the first gasket is fixedly connected with the pump shell, and the second gasket is fixedly connected with the plunger shaft.

Preferably, one end of the adjusting shaft is fixedly connected with an eccentric cam, and a convex surface of the end surface cam abuts against the eccentric cam.

Compared with the prior art, the utility model has the beneficial effects that:

according to the reliable oil pumping structure, the worm and the plunger shaft are rotated by pulling the worm gear to rotate, when the plunger shaft rotates, the thin end of the end face cam rotates towards the position of the eccentric cam due to the fact that the convex surface of the end face cam abuts against the eccentric cam, at the moment, the plunger shaft rotates, and when the notch rotates to the oil inlet, the plunger shaft is driven to axially move away from one side of the oil cavity under the action of the pressure spring, so that the oil suction cavity is enlarged to form negative pressure, and engine oil is sucked; continue to pull the worm wheel and rotate, thereby make worm and plunger shaft rotate, when the plunger shaft rotates, can make the end cam thick end rotate towards eccentric cam position, the plunger shaft rotates this moment, when the breach rotates to the oil-out, eccentric cam supports presses the end cam, can make the end cam towards oil pocket one side axial displacement, thereby make the oil absorption chamber diminish and form the malleation, extruder oil, the dynamics of worm wheel is stirred through control, steerable eccentric cam supports the pressure dynamics to the end cam, thereby steerable oil absorption chamber diminishes the degree, and then steerable oil output, avoid oiling too much to cause the waste, or the problem that need oil many times repeatedly to oil is too little oiled.

Drawings

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

Fig. 2 is a second schematic view of the overall structure of the present invention.

Fig. 3 is a schematic diagram of the explosive structure of the present invention.

Fig. 4 is a schematic cross-sectional structure of the present invention.

The meaning of the reference symbols in the figures is: 1. a pump housing; 10. mounting holes; 11. a movable groove; 12. an oil chamber; 13. an oil inlet; 14. an oil outlet; 2. a plunger shaft; 20. a notch; 21. a worm; 22. an end cam; 23. a first gasket; 24. a second gasket; 25. a pressure spring; 3. blocking the cover; 40. an adjustment shaft; 41. an eccentric cam; 5. a worm gear; 50. a groove; 6. a deflector rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a technical scheme that:

a reliable oil pumping structure, please refer to fig. 1-4, includes a pump housing 1, an oil chamber 12 is provided inside the pump housing 1, the pump housing 1 is further provided with an oil inlet 13 and an oil outlet 14 both communicated with the oil chamber 12, oil enters the oil chamber 12 from the oil inlet 13 and then is sent out from the oil outlet 14; the plunger piston is characterized by further comprising a plunger piston shaft 2, one end of the plunger piston shaft 2 is movably inserted into the oil cavity 12, the oil cavity 12 is a cylindrical cavity, and one end, located in the oil cavity 12, of the plunger piston shaft 2 is cylindrical and can rotate in the oil cavity 12; the other end of the plunger shaft 2 extends out of the oil chamber 12; specifically, a movable groove 11 is formed in the pump housing 1, one end of the movable groove 11 is communicated with the inside of the oil chamber 12, and the other end of the plunger shaft 2 extends into the movable groove 11.

Referring to fig. 3-4, the plunger shaft 2 is fixedly connected to the end cam 22, the convex surface of the end cam 22 is far away from the notch 20, the plunger shaft further includes an adjusting shaft 40 fixedly connected to the pump housing 1, a pressure spring 25 is connected between the notch 20 and the end cam 22 on the plunger shaft 2, and the pressure spring 25 enables the convex surface of the end cam 22 to be pressed against one end of the adjusting shaft 40.

Referring to fig. 3-4, a gap 20 is formed at one end of the plunger shaft 2, which is located at the oil chamber 12, and a driving mechanism for driving the plunger shaft 2 to rotate is further included, wherein an oil suction chamber is formed between the gap 20 and the oil inlet 13 when the gap 20 rotates to the oil inlet 13, and an oil squeezing chamber is formed between the gap 20 and the oil outlet 14 when the gap 20 rotates to the oil outlet 14.

Referring to fig. 4, in order to drive the plunger shaft 2 to rotate, the driving mechanism includes a worm 21 and a worm wheel 5, the worm 21 is fixedly connected to a shaft body of the plunger shaft 2, the worm wheel 5 is rotatably mounted on the pump housing 1, a mounting hole 10 is formed in the pump housing 1, the worm wheel 5 is rotatably mounted in the mounting hole 10, the mounting hole 10 is communicated with the movable groove 11, and the worm wheel 5 is meshed with the worm 21; the worm wheel 5 rotates to mesh with the worm 21 to rotate the plunger shaft 2.

In order to facilitate the rotation of the shifting worm wheel 5, the shifting lever 6 is fixedly connected to the worm wheel 5, and the shifting lever 6 can drive the worm wheel 5 to rotate.

In order to more easily stir the worm wheel 5 to rotate through the poking rod 6, the worm wheel 5 is provided with a groove 50, one end of the rod body of the poking rod 6 is fixedly wound in the groove 50, the poking rod 6 can be in contact with the worm wheel 5 in a larger area, when the poking rod 6 is stirred, a plurality of positions of the poking rod 6 simultaneously drive the worm wheel 5 to rotate, and the worm wheel 5 can more easily rotate.

In this embodiment, the pressure spring 25 cup joints on plunger shaft 2, and the pressure spring 25 is close to the first gasket 23 of the 20 one end fixedly connected with in breach, and first gasket 23 is the annular, and plunger shaft 2 passes first gasket 23, and the pressure spring 25 is close to end face cam 22 one end fixedly connected with second gasket 24, first gasket 23 and pump case 1 fixed connection, second gasket 24 and plunger shaft 2 fixed connection.

In order to limit the position of the plunger shaft 2, an eccentric cam 41 is fixedly connected to one end of the adjusting shaft 40, a convex surface of the end cam 22 abuts against the eccentric cam 41, the end cam 22 comprises a thick end (the thickest position of the convex surface of the end cam 22) and a thin end (the thinnest position of the convex surface of the end cam 22), the eccentric cam 41 can block the end cam 22, and when the thin end of the end cam 22 moves to abut against the eccentric cam 41, the plunger shaft 2 can be prevented from moving towards the eccentric cam 41 continuously.

It is necessary to supplement that the other end of the movable groove 11 is communicated with the outside, and the other end of the movable groove 11 is provided with the plugging cover 3.

When the reliable oil pumping structure of the embodiment is used, the deflector rod 6 is toggled to rotate, the worm wheel 5 can be driven to rotate, so that the worm 21 and the plunger shaft 2 rotate, when the plunger shaft 2 rotates, the thin end of the end face cam 22 can rotate towards the position of the eccentric cam 41 due to the fact that the convex surface of the end face cam 22 abuts against the eccentric cam 41, at the moment, the plunger shaft 2 rotates, when the notch 20 rotates to the oil inlet 13, the plunger shaft 2 can be driven to axially move towards one side of the blocking cover 3 under the action of the pressure spring 25, so that an oil suction cavity is enlarged to form negative pressure, and engine oil is sucked; continue to pull driving lever 6 and rotate, it rotates to drive worm wheel 5, thereby make worm 21 and plunger shaft 2 rotate, when plunger shaft 2 rotates, can make terminal surface cam 22 thick end rotate towards eccentric cam 41 position, plunger shaft 2 rotates this moment, when breach 20 rotates to the oil-out, eccentric cam 41 supports presses terminal surface cam 22, can make terminal surface cam 22 keep away from 3 one side axial displacement of blanking cover, thereby make the oil absorption chamber diminish and form the malleation, extruder oil, through the dynamics that control pulled driving lever 6, steerable eccentric cam 41 supports the pressure dynamics to terminal surface cam 22, thereby the steerable degree that oil absorption chamber diminishes, and then steerable oil output, avoid oiling too much to cause the waste, or the too few repetitious oiling that need.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a reliable pump oil structure, includes pump casing (1), pump casing (1) inside is equipped with oil pocket (12), oil inlet (13) and oil-out (14) have still been seted up on pump casing (1), and oil inlet (13) and oil-out (14) all communicate its characterized in that with oil pocket (12): the oil pump also comprises a plunger shaft (2), one end of the plunger shaft (2) is movably inserted in the oil cavity (12), and the other end of the plunger shaft extends out of the oil cavity (12); a notch (20) is formed in one end, located in the oil cavity (12), of the plunger shaft (2), and the plunger shaft further comprises a driving mechanism for driving the plunger shaft (2) to rotate, when the notch (20) rotates to the oil inlet (13), an oil suction cavity is formed with the oil inlet (13), and when the notch (20) rotates to the oil outlet (14), an oil squeezing cavity is formed with the oil outlet (14); fixedly connected with end cam (22) on the axis body of plunger axle (2), breach (20) are kept away from to the convex surface of end cam (22), still include adjusting spindle (40) of fixed connection on pump casing (1), lie in on plunger axle (2) and be connected with pressure spring (25) between breach (20) and end cam (22), pressure spring (25) make the convex surface butt of end cam (22) in the one end of adjusting spindle (40).

2. A reliable oil pumping structure as set forth in claim 1, wherein: the drive mechanism comprises a worm (21) and a worm wheel (5), the worm (21) is fixedly connected to the shaft body of the plunger shaft (2), the worm wheel (5) is rotatably installed on the pump shell (1), and the worm wheel (5) is meshed with the worm (21).

3. A reliable oil pumping structure as set forth in claim 2, wherein: and a deflector rod (6) is fixedly connected to the worm wheel (5).

4. A reliable oil pumping structure according to claim 3, characterized in that: a groove (50) is formed in the worm wheel (5), and one end of a rod body of the deflector rod (6) is fixedly wound in the groove (50).

5. A reliable oil pumping structure as set forth in claim 1, wherein: the pressure spring (25) is close to first gasket (23) of breach (20) one end fixedly connected with, and pressure spring (25) are close to end face cam (22) one end fixedly connected with second gasket (24), first gasket (23) and pump casing (1) fixed connection, second gasket (24) and plunger axle (2) fixed connection.

6. A reliable oil pumping structure as set forth in claim 1, wherein: one end of the adjusting shaft (40) is fixedly connected with an eccentric cam (41), and the convex surface of the end surface cam (22) is abutted against the eccentric cam (41).