CN210411416U

CN210411416U - Oil coating tool

Info

Publication number: CN210411416U
Application number: CN201921191802.XU
Authority: CN
Inventors: 余家昌; 骆欢
Original assignee: Aoran Biotechnology Shanghai Co ltd
Current assignee: Aoran Biotechnology Shanghai Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-28
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to an oiling tool, which comprises a transmission mechanism, a mechanical oiling mechanism, an oil outlet quantity adjusting mechanism, an oiling pipeline and a material channel; the mechanical oiling mechanism is constructed to synchronously and mechanically trigger the oil outlet amount adjusting mechanism to enable oil in the oil storage container to enter the oiling pipeline and enable the product to be oiled to move along the oiling pipeline. The application of the oiling tool can realize the pollution-free uniform oiling of products, has a simple structure, and can realize the integration of oiling and assembling.

Description

Oil coating tool

Technical Field

The utility model relates to a machine part fat liquoring technical field, concretely relates to fat liquoring instrument.

Background

In order to achieve better sealing and leakage prevention, the sealing element is generally required to be oiled. Manual operation is usually adopted in the prior art, so that lubricating oil is easily polluted on one hand, and the oiling uniformity of a sealing element is difficult to ensure on the other hand.

In order to realize pollution-free and more uniform oiling, chinese utility model patent CN204459701U discloses a thread oiling device, which comprises an oiler housing, an oil pipe and an oil gun, wherein the oiler housing is sleeved on the thread to be oiled, the oil pipe is connected with the oiler housing and the oil gun, and the oil gun passes through the oil pipe thinks the oiler housing transmits engine oil. The operator only needs to turn on and off the oil gun to complete the entire oiling process.

In addition, chinese utility model patent CN202708530U discloses a rubber seal oiling station, which can seal the seal and can also automatically oil. The Chinese patent application 201710856631.7 discloses an automatic oiling machine, which can automatically detect and supplement grease in an oil storage tank through a pure mechanical structure by oiling a product through an oil nozzle and interlocking and installing an upper limit switch and a lower limit switch which control the work of a pneumatic pump at set positions, and can automatically supplement and spray the oil storage tank through a set of aerodynamic system.

However, the oiling device in the prior art is complex in transmission mechanism or difficult to realize the oiling and assembling integration of products. For this reason, there is still a need in the art to develop an oiling tool which has a simple structure and can realize the integration of oiling and assembling.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aim at provide a simple structure, can realize fat liquoring equipment integration's fat liquoring instrument to solve the technical problem among the above-mentioned prior art. Specifically, the oiling instrument of this application includes unique mechanical type oiling machine, its structure construct to trigger out oil volume adjustment mechanism and make the oil entering in the oil storage container of oil storage container in synchronous mechanical type and scribble the oil pipe way and remove to and make the product of waiting to scribble the oil along scribbling the oil pipe way, thereby treat the product of scribbling the oil and scribble the oil. In a preferred embodiment, the oiling tool further comprises a side cover positioning plate, and can realize oiling of products such as a round piston and the like and assembly and integration of the side cover positioning plate and the round piston.

In order to achieve the purpose of the present invention, the present application provides the following technical solutions.

In a first aspect, the present application provides an oiling tool comprising a housing, a handle, a first elastic member, and an oil storage container, the handle being pivotally connected to the housing by the first elastic member, characterized in that the oiling tool further comprises a transmission mechanism, a mechanical oiling mechanism, an oil output adjusting mechanism, an oiling pipe, and a material passage;

the starting end of the transmission mechanism is connected with the handle, the terminal end of the transmission mechanism is connected with the mechanical oiling mechanism, and the transmission mechanism is used for converting the pivot rotation of the handle into the linear movement of the mechanical oiling mechanism;

the oil outlet quantity adjusting mechanism is controlled by the mechanical oiling mechanism, is in fluid communication with the oil storage container and is used for adjusting the oil outlet quantity of the oil storage container;

wherein the oiling conduit is in fluid communication with the oil storage vessel;

the material channel is communicated with the oiling pipeline and is used for conveying a product to be oiled to the oiling pipeline; and

the mechanical oiling mechanism is configured to synchronously and mechanically trigger the oil outlet amount adjusting mechanism to enable oil in the oil storage container to enter the oiling pipeline and enable the product to be oiled to move along the oiling pipeline.

In one embodiment of the first aspect, the oiling tool further comprises a hollow scraper which is arranged below the oiling pipe, and a gap exists between the hollow part of the scraper and the product to be oiled

In one embodiment of the first aspect, the gap is 0.1mm to 0.5 mm.

In one embodiment of the first aspect, the oil outlet amount adjustment mechanism includes a plunger assembly.

In one embodiment of the first aspect, the transmission mechanism comprises a profile gear and a combination gear, the combination gear comprising a driving gear and a driven gear coaxially arranged;

one end of the special-shaped gear is fixedly connected to the handle, and the other end of the special-shaped gear is meshed with the driving gear;

the driving gear is used for driving the driven gear, and the driven gear is used for driving the mechanical oiling mechanism to perform linear motion.

In one embodiment of the first aspect, the mechanical oiling mechanism comprises a rack, a push rod and an auxiliary pressure plate which are fixedly connected together;

the push rod is used for enabling the product to be oiled to move linearly along the oiling pipeline;

the auxiliary pressure plate is used for extruding the oil outlet amount adjusting mechanism; and the number of the first and second groups,

wherein the rack is engaged with the driven gear.

In one embodiment of the first aspect, the oiling tool further comprises a separation assembly comprising a separation assembly housing, a second resilient member, and a movable baffle;

wherein the disconnect assembly housing is fixedly connected to the housing; and the number of the first and second groups,

the movable baffle is configured to move along a direction perpendicular to the longitudinal direction of the material channel, the upper portion of the movable baffle is elastically connected with the separating assembly shell through the second elastic part, the middle portion of the movable baffle is supported by the push rod, and the lower portion of the movable baffle is configured to block the product to be oiled when the movable baffle moves into the material channel.

In one embodiment of the first aspect, the oiling tool further comprises a feeding mechanism, wherein the feeding mechanism comprises a pushing spring, a guide rod and a pushing head;

wherein, the guide rod is connected with the material channel in a sliding way;

the pushing head is arranged at one end, facing the material channel, of the guide rod; and

the pushing spring is sleeved on the periphery of the guide rod and arranged between the shell and the pushing head.

In one implementation manner of the first aspect, a one-way oil inlet assembly is arranged at the top of the oil storage container, and comprises an oil inlet cover, a pressure head, a third elastic component and a plug;

the oil inlet cover comprises an oil inlet, the plug is fixedly connected to the oil storage container, one end of the pressure head is elastically connected with the plug through the third elastic component, and the oil inlet is blocked by the other end of the pressure head.

In one embodiment of the first aspect, the product to be oiled is a round piston.

In one embodiment of the first aspect, the oil coating tool further comprises a side cover positioning plate disposed below the scraper for positioning a side cover for assembling with the product to be coated.

Compared with the prior art, the beneficial effects of the utility model reside in that the fat liquoring instrument of this application can realize carrying out the even fat liquoring of pollution-free ground to the product. In addition, the oiling instrument simple structure of this application can realize fat liquoring equipment integration.

Drawings

Fig. 1 is a perspective view of an oiling tool according to one embodiment of the present application.

Fig. 2 is a schematic diagram of a configuration of an oiling tool according to an embodiment of the present application.

Fig. 3 is a top view of an oiled pipe end according to an embodiment of the present application.

FIG. 4 is a top view of a squeegee according to one embodiment of the present application.

Fig. 5 is a schematic view of a lane including a product to be oiled according to an embodiment of the present application.

Fig. 6 is an enlarged partial view of the open circle labeled portion of fig. 5.

FIG. 7 is a schematic structural diagram of a separation assembly according to one embodiment of the present application.

FIG. 8 is a schematic structural diagram of a one-way oil feed assembly according to an embodiment of the present application.

FIG. 9 is a schematic view of a round piston according to one embodiment of the present application.

In the above drawings, the reference numerals have the following meanings:

1 outer cover

2 pushing spring

3 guide rod

4 push head

5 Material channel

6 round piston

7 separation assembly

71 separation assembly housing

72 second spring

73 movable baffle

8 side cover positioning plate

9 side cover

10 scraping board

11 oiling pipeline

12 plunger assembly

13 oil pipe

14 one-way valve

15 one-way oil inlet assembly

151 oil inlet cover

152 ram

153 third spring

154 plug

16 auxiliary pressure plate

17 push rod

18 rack

19 combination gear

20 special-shaped gear

21 first spring

22 a handle, and

23 oil storage tank.

Detailed Description

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as is understood by those of ordinary skill in the art to which the invention belongs.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

In the following description of the embodiments of the present invention, with reference to the drawings, it is noted that in the detailed description of the embodiments, all features of the actual embodiments may not be described in detail in order to make the description concise and concise. Modifications and substitutions may be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the invention, and the resulting embodiments are within the scope of the invention.

In the prior art, the sealing element is generally coated by manual coating, so that dead corners are easily left and the sealing element is difficult to coat uniformly. Some automatic oiling machines disclosed in the prior art are either complex in structure or difficult to realize the integration of oiling and assembling. Therefore, the oiling tool is simple in structure and capable of achieving oiling and assembling integration, and the technical problem in the prior art is solved.

In one embodiment, the present application provides an oiling tool including a housing, a handle pivotally connected to the housing by a first resilient member, and an oil reservoir. The oiling tool further comprises a transmission mechanism, a mechanical oiling mechanism, an oil outlet quantity adjusting mechanism, an oiling pipeline and a material channel. The starting end of the transmission mechanism is connected with the handle, the terminal of the transmission mechanism is connected with the mechanical oiling mechanism, and the transmission mechanism is used for converting the pivot rotation of the handle into the linear movement of the mechanical oiling mechanism. The oil output adjusting mechanism is controlled by the mechanical oil coating mechanism, is communicated with the fluid of the oil storage container and is used for adjusting the oil output of the oil storage container. The oiling conduit is in fluid communication with the oil storage container. The material channel is communicated with the oiling pipeline and is used for conveying a product to be oiled to the oiling pipeline. The mechanical oiling mechanism is constructed to synchronously and mechanically trigger the oil outlet amount adjusting mechanism to enable oil in the oil storage container to enter the oiling pipeline and enable the product to be oiled to move along the oiling pipeline.

The oiling tool is particularly suitable for oiling small parts such as a round piston, and is a portable oiling tool. In the oiling tool described herein, the handle is connected to the housing by an elastic member, and one end of the handle is connected to the housing and is pivotally operated about a fulcrum at which the handle is connected to the housing. The operator only needs to press the handle to start the oiling operation. The oiling operation needs to be stopped, an operator only needs to loosen hands, and the handle is reset to the initial position under the action of the elastic component. In one embodiment, all of the resilient members described herein can be springs.

The oiling tool described herein employs a purely mechanical transmission, particularly including a mechanical oiling mechanism uniquely designed by the inventor. In particular, the oiling mechanism described herein may simultaneously deliver grease and product to be oiled into an oiling conduit. When the product to be oiled moves in the oiling pipeline, the periphery of the product to be oiled is oiled.

In one embodiment, the oiling tool described herein further comprises a hollow scraper disposed below the oiling conduit, and a gap exists between the hollow portion of the scraper and the product to be oiled. In one embodiment, the gap is 0.1mm to 0.5 mm. In a preferred embodiment, the cross-sectional size and shape of the hollow flight is customized to the size and shape of the product to be oiled. The scraper plate is used for scraping redundant grease on the periphery of a product to be oiled, so that each part of the product to be oiled is evenly oiled without dead angles.

In one embodiment, the oiling tool described herein may further include a side cover positioning plate disposed below the scraper for positioning the side cover for assembly with the round piston. Therefore, after the circular piston is oiled, the circular piston is directly assembled with the side cover in a pollution-free sealed environment, and the oiling and assembling integration of the circular piston is realized.

The structure and working principle of the oiling tool according to the present application will be described in more detail below with reference to the accompanying drawings.

Referring first to fig. 1 and 2, fig. 1 is a perspective view of an oiling tool according to an embodiment of the present application, and fig. 2 is a structural schematic view of the oiling tool according to an embodiment of the present application. The oiling tool described herein comprises a housing 1, a first spring 21 and a handle 22. As can be taken from fig. 2, the handle 22 is pivotably connected to the housing 1 by means of a first spring 21. The oiling tool further comprises a transmission mechanism, a mechanical oiling mechanism, an oil outlet quantity adjusting mechanism, an oiling pipeline 11 and a material channel 5.

In the embodiment shown in fig. 2, the transmission mechanism of the oiling tool may include a shaped gear 20 and a combination gear 19, and the combination gear 19 may include a driving gear and a driven gear that are coaxially disposed. In the embodiment shown in fig. 2, the pinion gear is a driving gear and the bull gear is a driven gear. As can be seen from fig. 2, one end of the shaped gear 20 is fixedly connected to the handle 22 and rotates accordingly as the handle 22 pivots. The other end of the special-shaped gear 20 is engaged with the driving gear of the combination gear 19, and further drives the driven gear of the combination gear 19 to rotate. The driven gear engages the rack 18 of the mechanical oiling mechanism to convert the rotation of the handle into linear movement of the mechanical oiling mechanism in the vertical direction. It will be understood by those skilled in the art that although the mechanical oiling mechanism is shown in fig. 2 as moving in the vertical direction, the mechanical oiling mechanism may be moved linearly in the horizontal direction or in any direction between the horizontal and vertical directions.

Next, a mechanical oiling mechanism of the oiling tool described herein will be described with reference to fig. 2. In the embodiment shown in fig. 2, the mechanical oiling mechanism may include a rack 18, a push rod 17, and an auxiliary pressure plate 16 that are fixedly coupled together. The pusher 17 is used to move the product to be oiled linearly along the oiling duct 11. The auxiliary pressure plate 16 is used to press the oil output amount adjusting mechanism, thereby allowing the grease to flow out of the oil reservoir 23. The rack 18 engages with the driven gear of the transmission to convert the rotation of the handle 22 into linear movement of the mechanical oiling mechanism.

The oil output regulating mechanism is controlled by the mechanical oiling mechanism and is simultaneously communicated with the oil storage tank 23 in a fluid mode. In one embodiment, the oil outlet amount adjusting mechanism may be the plunger assembly 12, and the oil outlet amount can be adjusted by selecting pistons with different strokes.

Similarly, the oiling channel 11 is in fluid communication with the oil reservoir 23 so that grease can flow from the oil reservoir 23 into the oiling channel 11 when the oil output adjustment mechanism is triggered by the mechanical oiling mechanism. In one embodiment, the storage tank 23 and the oiling conduit 11 may be in fluid communication through tubing 13.

Fig. 3 is a top view of the end of an oiling conduit 11 according to an embodiment of the present application, and as can be seen from fig. 3, the cross-sectional shape of the oiling conduit 11 matches the shape of the round piston and is sized to allow linear movement of the round piston. The oiling pipeline 11 not only can guide products to be oiled, but also can limit the products to be oiled.

In one embodiment, a scraper 10 may be provided below the oiling duct 11 in order to homogenize the oiling of the round piston. FIG. 4 is a top view of a screed 10 according to one embodiment of the present application. As can be seen in fig. 4, the cross-sectional shape of the flight 10 matches the shape of the circular piston, but is larger in size than the circular piston. A gap exists between the scraper 10 and the rubber seal ring on the periphery of the round piston. The gap size is 0.1-0.5 mm. The scraper 10 can scrape off excessive grease to ensure the uniformity of oil coating.

Reference is made to fig. 5 and 6, wherein fig. 5 is a schematic view of a chute 5 including a product to be oiled according to an embodiment of the present application, and fig. 6 is an enlarged view of a portion of fig. 5 marked with an open circle. The oiling tool described herein may also include a feed mechanism that includes a pusher spring 2, a guide bar 3, and a pusher head 4. The guide rod 3 with the material is said 5 sliding connection, and the setting of pushing head 4 is in the guide rod 3 orientation the one end of material way 5, and push away the material spring 2 cover and establish in the periphery of guide rod 3, and set up between shell 1 and pushing head 4. By means of the feeding mechanism as described above, it is possible to achieve an automatic transfer of the product to be oiled (for example a round piston) through the channel 5 to the oiling channel 11, the channel 5 communicating with the oiling channel.

Next, referring to fig. 7, fig. 7 is a schematic structural view of a separation assembly according to an embodiment of the present application. In one embodiment, the oiling tool described herein may further comprise a separation assembly 7, the separation assembly 7 comprising a separation assembly housing 71, a second spring 72, and a movable flap 73. In the embodiment shown in fig. 7, the separating assembly housing 71 is fixedly connected to the housing 1 of the oiling tool. The movable shutter 73 is configured to be movable in a direction perpendicular to the longitudinal direction of the chute 5, and an upper portion of the movable shutter 73 is elastically connected to the separation assembly housing 71 by a second spring 72. The movable flap 73 is supported at its middle portion by the push rod 17, and the lower portion of the movable flap 73 is movable in the vertical direction into and out of the chute 5 to retain the product to be oiled when the movable flap is moved into the chute 5. In this embodiment, the push rod 17 has a convex portion to support the middle of the movable shutter 73, and the movable shutter contacts the separation assembly housing 71 together with the second spring 72.

The operating principle of the separating assembly 7 is as follows: when the push rod 17 moves downwards, the movable baffle 73 loses support, and under the action of the elastic force of the second spring 72 in a compressed state, the movable baffle 73 moves downwards, enters the material channel 5 and finally blocks the round pistons 6, so that the two adjacent round pistons 6 are separated. When the push rod 17 moves upwards, the movable blocking piece 73 is driven to move upwards together, gradually gets away from the material channel 5, and the separation effect is lost. The end result is that the movable shutter 73 compresses the second spring 72, supported by the convex portion of the push rod 17, returning to the initial state.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a one-way oil feed assembly 15 according to an embodiment of the present application. The one-way oil feed assembly 15 may be disposed on top of the oil storage tank 23, which may include an oil feed cap 151, a ram 152, a third spring 153, and a plug 154. The oil inlet cover 151 includes an oil inlet, a plug 154 is fixedly connected to the oil storage tank 23, one end of the pressure head 152 is elastically connected to the plug 154 by a third spring 153, and the other end blocks the oil inlet. The one-way inlet assembly described herein acts as a one-way valve, and grease or oil can only enter the storage tank 23 from the inlet assembly, but will not leak therefrom.

In one embodiment, the product to be oiled as described herein may be a round piston 6. Referring to fig. 9, fig. 9 is a schematic view of a circular piston 6 according to an embodiment of the present application. The outer periphery of the round piston 6 is fitted with a sealing ring 61 which can be oiled by the oiling tool described herein. In addition, the upper part of the round piston comprises mounting lugs 62 which can be assembled with the side covers 9 after the piston has been oiled.

Returning to fig. 2, in the embodiment shown in fig. 2, the oiling tool described herein further includes a side cover positioning plate 8, and the side cover positioning plate 8 is disposed below the scraper 10 for positioning the side cover 9. The side cover 9 is intended to be assembled with the round piston 6.

In order to make the structure and principle of the oiling tool of the present application more clearly understood by those skilled in the art, the use of the oiling tool described herein will be described below with reference to fig. 2, taking the circular piston 6 as an example.

Firstly, a round piston 6 to be oiled is loaded through a material channel 5, the nearest piston of the oiling pipeline 11 is pushed into the oiling pipeline 11 under the action of a pushing spring 2, and the piston 6 is fixed in place under the action of the wall of the oiling pipeline 11.

Then, the operator presses the handle 22, compresses the first spring 21, and rotates counterclockwise about a fulcrum where the handle 22 intersects the housing 1. The handle 22 drives the shaped gear 20 to rotate counterclockwise, so that the driving gear and the driven gear of the combination gear 19 rotate clockwise. The driven gear of the combination gear 19 meshes with the rack 18, so that the rack 18 moves downwards and drives the whole mechanical oiling mechanism to move downwards.

When the rack 18 moves downwards, the push rod 17 moves downwards, the movable baffle 73 of the separation assembly 7 is driven to separate the adjacent round pistons 6, and the round piston 6 which enters the oiling duct 11 is pushed downwards to move downwards until the round piston passes through all the oiling ducts 11, the scraper 10 and finally enters the cavity of the side cover 9. Meanwhile, when the rack 18 moves downward, the auxiliary pressure plate 16 moves downward, and after contacting the plunger assembly 12, pushes the piston rod of the plunger assembly 12 to move downward, the internal pressure of the oil storage tank 23 increases, and the lubricating oil flows out through the check valve 14 and then enters the oiling pipeline 11 through the oil pipe 13. A gap of 0.1-0.5mm is formed between the oiling pipeline 11 and the scraper 10, so that the circular piston 6 can be uniformly wetted when passing through.

After the oiling operation is finished, the operator releases the handle 22, the handle 22 drives the special-shaped gear 20 to rotate clockwise under the action of the first spring 21, and the rack 18 moves upwards under the action of the combined gear 19 to drive the auxiliary pressure plate 16 and the push rod 17 to move upwards. As the push rod 17 moves upward, the separator assembly 7 is lifted upward, separated from the chute 5, and returned to the initial position. As auxiliary pressure plate 16 moves upward, plunger assembly 12 is no longer compressed and the piston of plunger assembly 12 is reset. In addition, under the action of the pushing spring 2, the pushing head 4 pushes the next round piston 6 to be oiled to move forward, so that the round piston 6 at the front end reaches the pre-pressing position to prepare for the next oiling work.

The embodiments described above are intended to facilitate the understanding and appreciation of the application by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the embodiments herein, and those skilled in the art who have the benefit of this disclosure will appreciate that many modifications and variations are possible within the scope of the present application without departing from the scope and spirit of the present application.

Claims

1. An oil coating tool comprises a shell, a handle, a first elastic part and an oil storage container, wherein the handle is connected to the shell in a pivoting mode through the first elastic part;

2. An oiling tool as defined in claim 1, further comprising a hollow blade arranged below said oiling duct, with a gap between the hollow part of the blade and the product to be oiled.

3. An oiling tool as defined in claim 2, wherein said gap is between 0.1mm and 0.5 mm.

4. An oiling tool as defined in any of claims 1-3, wherein said oil delivery adjustment mechanism comprises a plunger assembly.

5. An oiling tool as defined in any of claims 1-3, wherein said transmission mechanism comprises a shaped gear and a combination gear, said combination gear comprising a driving gear and a driven gear arranged coaxially;

6. An oiling tool as defined in claim 5, wherein said mechanical oiling mechanism comprises a rack, a push rod and an auxiliary pressure plate fixedly connected together;

wherein the rack is engaged with the driven gear.

7. An oiling tool as defined in claim 6, further comprising a separation assembly housing, a second resilient member and a movable baffle;

8. The oiling tool as defined in claim 1, further comprising a feed mechanism comprising a pusher spring, a guide rod and a pusher head;

wherein, the guide rod is connected with the material channel in a sliding way;

9. The oiling tool according to claim 1, wherein a one-way oil feeding assembly is arranged at the top of the oil storage container, and comprises an oil feeding cover, a pressure head, a third elastic component and a plug;

10. An oiling tool as defined in claim 1, wherein said product to be oiled is a round piston.

11. An oiling tool as defined in claim 2, further comprising a side cover positioning plate disposed below said scraper for positioning a side cover for assembly with the product to be oiled.