TWI674209B - Oil injector having oil collecting mechanism - Google Patents

Abstract

An oil injection device with an oil return mechanism includes: a barrel body surrounding a liquid storage space, the barrel body having an opening on the top thereof; a drawing mechanism covering the opening of the barrel body, the drawing mechanism comprising a Body, a suction pipe and a suction member, the seat body has a first-grade channel, a liquid outlet and an oil return port, the liquid outlet and the oil return port are respectively connected to the flow channel, and the liquid outlet is provided for a An oil pipe is connected, and the oil return port is located between the liquid suction pipe and the liquid discharge port. One end of the liquid suction pipe extends into the liquid storage space, and the other end communicates with the flow channel. The drawing member is used for the liquid storage. The liquid in the space is sucked into the flow channel through the suction pipe; an oil return line is connected to an oil return collection container, and the oil return collection container communicates with the oil return port through the oil return line, and the oil return line has a valve body The valve body is used to control whether the oil return port communicates with the oil return pipeline.

Description

Oil injection device with oil return mechanism

The invention relates to an oil injection device, in particular to an oil injection device having an oil return mechanism.

Generally, when changing transmission oil or other fluids, the old oil in the transmission is leaked first, and then the new transmission oil is filled with the oil injection device. The oil injection device usually has a mechanism to extract the oil in the barrel. The fluid is pumped out and injected directly into the gearbox through the oil pipe. When the gearbox is filled with oil, the oil pipe will flow out when the oil pipe is removed, which is very inconvenient and a waste.

Therefore, the patent TW M450529 provides an oil return mechanism, which is added to the flow channel to add a return channel so that excess oil in the oil pipe can return to the barrel through the return channel.

However, the returned oil has often entered the gearbox, and it is likely to have been contaminated and deteriorated to some extent. If it directly enters the barrel, it will contaminate the clean oil in the barrel and reduce the quality of the oil.

The main object of the present invention is to provide an oil injection device with an oil return mechanism, which can effectively recover the residual oil in the pipeline without polluting the clean oil in the barrel.

To achieve the above object, the present invention provides an oil injection device with an oil return mechanism, which includes a barrel body, a drawing mechanism, an oil return line, and an oil return collection container.

The barrel body surrounds a liquid storage space. The barrel body has an opening at the top of the barrel body. The extraction mechanism covers the opening of the barrel body. The extraction mechanism includes a body, a liquid suction tube, and a suction piece. The body has a first-grade channel, a liquid outlet and an oil return port, the liquid outlet and the oil return port are respectively connected to the flow channel, the liquid outlet is connected with an oil pipe, and the oil return port is located between the liquid suction pipe and Between the liquid outlets, one end of the dip tube extends into the liquid storage space, and the other end is in communication with the flow channel, and the drawing member is used to suck the liquid in the liquid storage space into the flow channel through the liquid tube. The oil return collection container communicates with the oil return port through the oil return line, and the oil return line has a valve body for controlling whether the oil return port communicates with the oil return line.

Therefore, the present invention can effectively recover the oil remaining in the pipeline for other purposes without polluting the clean oil in the barrel.

10‧‧‧ barrel

11‧‧‧Liquid storage space

12‧‧‧ opening

13‧‧‧ Positioning piece

20‧‧‧Drawing institutions

21‧‧‧ seat

211‧‧‧runner

212‧‧‧outlet

213‧‧‧oil return port

22‧‧‧ Suction tube

23‧‧‧Check valve

24‧‧‧Drawing

30‧‧‧oil return line

31‧‧‧Valve body

40‧‧‧return oil collection container

41‧‧‧Draining port

50‧‧‧ tubing

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a partially exploded perspective view of the present invention.

Fig. 3 is a sectional view of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 3. The present invention provides an oil injection device having an oil return mechanism, which includes a barrel body 10, a drawing mechanism 20, an oil return line 30 and an oil return collection container 40.

The barrel body 10 surrounds a liquid storage space 11. The barrel body 10 has an opening 12 on the top of the barrel body. The extraction mechanism 20 covers the opening 12 of the barrel body 10. The extraction mechanism 20 includes a body 21 and a suction tube. A liquid pipe 22 and a drawing member 24. The base 21 has a first-stage channel 211, a liquid outlet 212, and a return oil. Port 213, the liquid outlet 212 and the oil return port 213 are respectively connected to the flow channel 211, the liquid outlet 212 is connected to an oil pipe 50, and the oil return port 213 is located in the liquid suction pipe 22 and the liquid outlet Between 212, preferably, the oil return port 213 is lower than the liquid outlet 212 to facilitate the return of the oil. One end of the dip tube 22 extends into the liquid storage space 11 and the other end communicates with the flow channel 211. The extraction member 24 is used to suck the liquid in the liquid storage space 11 into the flow channel 211 through the extraction pipe 22. More specifically, the extraction member 24 includes a piston rod and a pressure handle. It is movably disposed in the suction pipe 22, and the pressure handle is used to drive the piston rod to move in the suction pipe 22. The oil return collection container 40 communicates with the oil return port 213 through the oil return pipe 30. The oil return line 30 has a valve body 31 for controlling whether the oil return port 213 communicates with the oil return line 30.

In this embodiment, the oil return collection container 40 is covered with a cover, and the oil return pipeline 30 passes through the cover and communicates between the oil return collection container 40 and the oil return port 213; the barrel 10 The outer wall is further provided with a positioning member 13 for detachably positioning the oil return collection container 40 on the barrel 10. Specifically, the positioning member 13 is a C-shaped fixing ring. The outer wall of the oil collecting container 40 has a ring edge, and the fixing ring is supported below the ring edge to fix the oil return collecting container 40, whereby the oil return collecting container 40 can be stably positioned on the barrel 10, but can It can be easily removed for cleaning and other operations. In addition, the bottom of the oil return collection container 40 has a liquid discharge port 41. Preferably, the liquid discharge port 41 can be provided with a cover or a valve body, so as not to be removed. In the case of the return oil collection container 40, the recovered oil is taken out.

Further, the bottom of the dip tube 22 has a one-way valve 23, which allows liquid to enter the dip tube 22 from the liquid storage space 11 but cannot enter the liquid storage space 11 from the dip tube 22. In this embodiment, The check valve 23 includes a bead, which is located in the dip tube 22, and the mouth of the dip tube 22 has a small diameter portion. Under normal conditions, the liquid will flow to the liquid in the dip tube 22 due to gravity. When the small-diameter part of the nozzle is blocked, the liquid in the liquid storage space 11 will push away the bead and enter the liquid-drawing tube 22 when the drawing element 24 is actuated.

In another possible embodiment of the present invention, the oil return collection container is integrally formed in the barrel body and is independent of the liquid storage space, and the oil return collection container may also be provided with a structure such as a liquid discharge port.

With the above structure, the oil injection device of the present invention can effectively recover the returned oil, prevent the oil from returning to the storage space and pollute the clean oil, maintain the oil quality, and the recovered oil is easy to be subsequently processed or used, which is extremely effective. The effect of progress.

Claims (6)

An oil injection device with an oil return mechanism includes: a barrel body surrounding a liquid storage space, the barrel body having an opening on the top thereof; a drawing mechanism covering the opening of the barrel body, the drawing mechanism comprising a Body, a dip tube and a dip member, the seat body has a first-grade channel, a liquid outlet and an oil return port, one end of the dip tube extends into the liquid storage space, and the other end communicates with the flow channel, the The extraction member is used to suck the liquid in the liquid storage space into the flow channel through the liquid suction tube, the liquid outlet and the oil return port are respectively connected to the flow channel, and the liquid outlet is connected to an oil pipe, and the oil return An oil outlet is located between the liquid suction pipe and the liquid outlet; an oil return pipeline and an oil return collection container, the oil return collection container is detachably positioned on the barrel body, and the oil return collection container is provided with a cover, and the return An oil line passes through the cover to communicate the oil return collection container and the oil return port. The oil return line has a valve body for controlling whether the oil return port communicates with the oil return line; wherein, the A one-way valve is provided at the bottom of the dip tube, allowing liquid to enter the dip tube from the liquid storage space Unable liquid from the dip tube into the liquid reservoir space. The oil injection device with an oil return mechanism as described in claim 1, wherein the outer wall of the barrel is further provided with a positioning member for positioning the oil return collection container on the barrel. The oil injection device with an oil return mechanism as described in claim 2, wherein the positioning member is a C-shaped fixing ring, and the outer wall of the oil return collection container has a ring edge, and the fixing ring is supported below the ring edge to fix the return Oil collection container. The oil injection device with an oil return mechanism as described in claim 1, wherein the bottom of the oil return collection container further has a liquid discharge port. The oil injection device with an oil return mechanism according to claim 1, wherein the check valve includes a bead, and the bead is located in the dip tube. The oil injection device with an oil return mechanism according to any one of claims 1 to 5, wherein the extraction member includes a piston rod and a pressure handle, and the piston rod is movably disposed in the liquid suction tube, and the pressure The handle is used to drive the piston rod to move in the dip tube.