CN219063060U - Oil supply system of electric gardening tool - Google Patents

Abstract

The utility model discloses an oil supply system of an electric garden tool, which relates to the technical field of electric tool lubrication and comprises an electric tool body, wherein the electric tool body is provided with an oilcan, an oil pump and a knife set which can be driven; the knife set is provided with an oil supply port, and the oil pump is close to the oil supply port; the oil outlet of the oil pump is a straight pipe, the oil outlet of the oil pump is communicated with the oil supply port of the knife set through a sealed oil guide piece, the oil guide pipeline in the sealed oil guide piece is a straight pipe, and the included angle between the oil guide pipeline and the inner straight pipe of the oil outlet of the oil pump is 0 degree or 180 degrees; through improving the oil-out of oil pump, lead oil pipe for lubricating oil in the oilcan reachs the oil circuit of fuel feed port through the oil pump and shortens, makes holistic occupation space diminish, and the oil circuit shortens, and lubricating oil can reachs the fuel feed port sooner, and after shutting down, the oil mass that can store in oil-out and the sealed oil guide spare also diminishes, even appear lubricating oil overflows the phenomenon that forms the greasy dirt, its relative volume is also less.

Description

Oil supply system of electric gardening tool

Technical Field

The utility model relates to the technical field of electric tool lubrication, in particular to an oil supply system of an electric garden tool.

Background

The electric tool refers to electric drills, electric wrenches, electric screwdrivers, electric shears, electric hammers, electric planers, electric grinders, electric saws and the like, and in the aspect of gardens, the electric tool refers to an electrically-controlled driving tool used in gardens such as electric shears, electric saws, hedge trimmers and the like.

The tool bit of the electric gardening tool sometimes needs to be operated for a long time, so that an oil pump is required to lubricate the tool bit of the electric gardening tool. At present, the mode of lubricating the tool bit of the electric tool mainly comprises the steps of manually filling lubricating oil and automatically filling oil by adding an electric oil pump. If the manual filling of the lubricating oil is to fill the lubricating oil without stopping, the lubricating oil is easy to splash, and if the manual filling is to stop, the operation process is inevitably prolonged; therefore, an electric tool to which an electric oil pump is attached to enable the lubrication oil to be fed without stopping has been mainstream.

The electric gardening tool with the electric oil pump, such as an electric saw, starts the machine, needs to wait for the oil supply system to oil, then the cutting tool is provided with lubricating oil, and then cutting is started. The oil supply system is mainly structured as a chain saw convenient for automatic clamping in the Chinese utility model of patent number 202210097137.8, the oil pump assembly 4 sucks out lubricating oil from the oil tank 2 through the oil inlet pipe 3, then the lubricating oil is discharged to the oil outlet nozzle 62 through the oil outlet pipe 5, and the oil outlet nozzle 62 discharges the lubricating oil to a saw chain, so that the saw chain is lubricated.

However, the arrangement of the oil outlet pipe can lead the space of the whole oil supply system to be large, and the oil way to be long leads the oil outlet efficiency to be low; after the machine is stopped, the lubricating oil which is not discharged in the oil outlet pipe can gradually overflow, and finally overflows on the shell of the tool or the ground, namely the oil stain which can be seen by people, and the oil stain quantity is proportional to the length of the oil outlet pipe, so that the oil supply system of the electric garden tool is required to be improved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a protective sleeve automatic hemming device and a method thereof.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an oil supply system of an electric garden tool comprises an electric tool body, wherein the electric tool body is provided with an oilcan, an oil pump and a knife set which can be driven; the knife set is provided with an oil supply port for taking oil to lubricate the knife set, and the oil pump is close to the oil supply port; the oil outlet of the oil pump is a straight pipe, the oil outlet of the oil pump is communicated with the oil supply port of the knife set through a sealing oil guide piece, the oil guide pipeline in the sealing oil guide piece is a straight pipe, and when the sealing oil guide piece is connected to the oil outlet of the oil pump, the included angle between the oil guide pipeline and the inner straight pipe of the oil outlet of the oil pump is 0 degree or 180 degrees; lubricating oil in the oilcan is supplied to an oil inlet of the oil pump.

As a further scheme of the utility model: the oil inlet of the oil pump is a straight pipe, and the axis of the inner straight pipe of the oil outlet of the oil pump is parallel to the axis of the inner straight pipe of the oil inlet of the oil pump.

As a further scheme of the utility model: the distance between the axis of the inner straight pipeline of the oil outlet of the oil pump and the axis extension line of the inner straight pipeline of the oil inlet of the oil pump is less than or equal to 3mm.

As a further scheme of the utility model: the oil supply port of the knife set is positioned on a flat plate surface; one end of the sealing oil guide corresponding to the oil supply port extends along the radial direction of the oil guide pipeline to form a leakage-proof seat, and the leakage-proof seat is provided with a leakage-proof plane propped against the plane surface.

As a further scheme of the utility model: the leak-proof plane is provided with a buffer oil groove communicated with the oil guide pipeline.

As a further scheme of the utility model: the leakage-proof plane is also formed with at least one ring of grooves, so that at least 2 sealing rings are formed on the leakage-proof plane.

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

through improving the oil-out of oil pump, the oil conduit in the sealed oil guide spare for lubricating oil in the oilcan reachs the oil circuit of fuel feed port through the oil pump and shortens, makes holistic occupation space diminish, and the oil circuit shortens, and lubricating oil can reachs the fuel feed port sooner, and after shutting down, the oil mass that can store in oil-out and the sealed oil guide spare also diminishes, even appear lubricating oil to spill over the phenomenon that forms the greasy dirt, its relative volume is also less.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the utility model without the oilcan installed;

FIG. 3 is a schematic diagram of the cooperation structure of the oil pump and the knife set in the utility model;

fig. 4 is a schematic structural view of an oil pump according to the present utility model;

fig. 5 is a structural sectional view of the oil pump in the present utility model.

Reference numerals and names in the drawings are as follows:

an oil pot-1 is arranged on the bottom of the oil pot,

oil pump-2, oil outlet-21, oil inlet-22, rotating shaft-23,

the knife set-3, the saw chain guide plate-32, the saw chain-33, the guide groove-34, the saw chain wheel-35, the bevel gear-36, the motor-37, the driving gear-38, the worm-39, the transmission shaft-310,

the sealing oil guide part-4, the leakage-proof seat-41, the sealing ring-42, the buffer oil groove-43 and the oil guide pipeline-44.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, an oil supply system for an electric gardening tool includes an electric tool body having an oil can 1, an oil pump 2, and a knife set 3 that can be driven.

The cutter set 3 is provided with an oil supply port for taking oil to lubricate the cutter set 3, and the oil pump 2 is close to the oil supply port. The oil outlet 21 of the oil pump 2 is a straight pipe, the oil outlet 21 of the oil pump 2 is communicated with the oil supply port of the knife set 3 through a sealing oil guide 4, an oil guide pipeline 44 in the sealing oil guide 4 is a straight pipe, and when the sealing oil guide 4 is connected to the oil outlet 21 of the oil pump 2, the included angle between the oil guide pipeline 44 and the inner straight pipe of the oil outlet 21 of the oil pump 2 is 0 degree or 180 degrees. Lubricating oil in the oilcan is supplied to an oil inlet of the oil pump.

Through improving the oil outlet 21 of the oil pump 2, the oil guide pipeline 44 in the sealed oil guide 4, the oil path that lubricating oil in the oilcan 1 reaches the oil supply port through the oil pump 2 becomes short, the whole occupation space becomes small, and the oil path becomes short, lubricating oil can reach the oil supply port faster, after stopping, the oil quantity that can store in the oil outlet 21 and the sealed oil guide 4 also becomes less, even if the phenomenon that lubricating oil overflows to form greasy dirt occurs, the relative quantity is also less.

Referring specifically to fig. 5, preferably, the oil inlet 22 of the oil pump 2 is a straight pipe, and the axis of the internal straight pipe of the oil outlet 21 of the oil pump 2 is parallel to the axis of the internal straight pipe of the oil inlet 22 of the oil pump 2. The distance between the axis of the inner straight pipe of the oil outlet 21 of the oil pump 2 and the axis extension line of the inner straight pipe of the oil inlet 22 of the oil pump 2 is less than or equal to 3mm.

As shown in fig. 2-3, the blade set 3 may be a chain saw blade set driven by a motor 37, the saw chain guide plate 32 has a guide slot 34 for accommodating the saw chain 33, and the oil supply port is located on the side of the saw chain guide plate 32 of the chain saw blade set and is in communication with the guide slot 34.

The saw chain wheel 35 of the chain saw knife set is arranged on a transmission shaft 310, a bevel gear 36 is connected on the transmission shaft 310 in a key way, a motor 37 is used as a component for driving the chain saw knife set, and a driving gear 38 meshed with the bevel gear 36 is connected on a rotating output shaft of the motor 37.

The rotating shaft 23 of the oil pump 2 is in power connection with the transmission shaft 310 through a worm 39, so that the rotating output shaft of the motor 37, the rotating shaft 23 of the oil pump 2 and the saw chain guide 32 of the chain saw blade set are kept parallel as much as possible, i.e., the width of the mounted electric gardening tool (the width in the left-right direction in fig. 2) can be reduced as much as possible.

In the embodiment of the present utility model, the oil supply port of the cutter set 3 is located on a flat plate surface.

The end of the sealing oil guide 4 corresponding to the oil supply port extends along the radial direction of the oil guide pipe 44 to form a leakage-proof seat 41, and the leakage-proof seat 41 is provided with a leakage-proof plane pressed on the plane surface. When the tool set 3 is used for operation, vibration is generated due to the contact of the tool set 3 and an object, and oil leakage is not easy to occur due to the vibration due to the larger stress range between the leakage-proof seat 41 and the flat plate surface.

Preferably, the leakage-proof plane is further formed with at least one circle of grooves, so that at least 2 sealing rings 42 are formed on the leakage-proof plane, and the sealing effect is better.

Further, a buffer oil groove 43 communicating with an oil guide pipe 44 is formed on the leakage preventing plane. Since the oil passage of the lubricating oil reaching the oil supply port through the oil pump 2 becomes short, the speed of the lubricating oil entering the oil supply port is slowed down by arranging the buffer oil groove 43 at the oil supply port, and the condition of splashing the lubricating oil is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. An oil supply system of an electric garden tool is characterized by comprising an electric tool body, wherein the electric tool body is provided with an oilcan, an oil pump and a knife set which can be driven;

the knife set is provided with an oil supply port for taking oil to lubricate the knife set, and the oil pump is close to the oil supply port;

the oil outlet of the oil pump is a straight pipe, the oil outlet of the oil pump is communicated with the oil supply port of the knife set through a sealing oil guide piece, the oil guide pipeline in the sealing oil guide piece is a straight pipe, and when the sealing oil guide piece is connected to the oil outlet of the oil pump, the included angle between the oil guide pipeline and the inner straight pipe of the oil outlet of the oil pump is 0 degree or 180 degrees;

lubricating oil in the oilcan is supplied to an oil inlet of the oil pump.

2. The oil supply system of an electric gardening tool as claimed in claim 1, wherein the oil inlet of the oil pump is a straight pipe, and the axis of the inner straight pipe of the oil outlet of the oil pump is parallel to the axis of the inner straight pipe of the oil inlet of the oil pump.

3. The oil supply system of an electric gardening tool as claimed in claim 2, wherein the distance between the axis of the inner straight pipe of the oil outlet of the oil pump and the axis extension line of the inner straight pipe of the oil inlet of the oil pump is less than or equal to 3mm.

4. An oil supply system of an electric gardening tool as claimed in claim 1, characterized in that,

the oil supply port of the knife set is positioned on a flat plate surface;

one end of the sealing oil guide corresponding to the oil supply port extends along the radial direction of the oil guide pipeline to form a leakage-proof seat, and the leakage-proof seat is provided with a leakage-proof plane propped against the plane surface.

5. The oil supply system of an electric gardening tool as claimed in claim 4, wherein a buffer oil groove communicated with the oil guide pipeline is formed on the leakage-proof plane.

6. The oil supply system of a power garden tool as claimed in claim 4, wherein the leakage preventing plane is further formed with at least one ring of grooves, such that at least 2 sealing rings are formed on the leakage preventing plane.

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