JP5918826B2 - Oil gun - Google Patents

Description

  The present invention relates to an oil gun, and particularly relates to an oil gun including an oil absorption pipe and an oil injection pipe.

  According to statistics from Taiwan's Ministry of Transportation (equivalent to the Ministry of Land, Infrastructure, Transport and Tourism), the number of motorcycles in Taiwan has already reached 15 million in 2013, and the density of motorcycles in Taiwan is approximately 2300. Since it is a million people, the number of motorcycle owners in Taiwan is several times higher than in countries such as Singapore and Japan.

In the repair and inspection items of motorcycles, the most basic and generally required maintenance is to change the engine oil once every 1000 kilometers. Currently, the majority of consumers take motorcycles to a maintenance factory and entrust workers to change engine oil, and the engine oil change work is performed as follows.
(1) Loosen the engine oil drain plug and let the dirty engine oil flow out of the engine.
(2) When the amount of dirty engine oil flowing out decreases, tilt the vehicle body to drain the engine oil remaining in the engine,
(3) Close the oil drain plug back to the oil drain hole,
(4) Remove the plug of the lubrication hole of the can containing the new engine oil with pliers, and insert a special funnel into the lubrication hole.
(5) Slowly pour new engine oil into the funnel,
(6) After injecting engine oil, remove the funnel and attach the plug to the lubrication hole.

  However, as described above, there are many work steps necessary for exchanging the engine oil, and the time required for exchanging the engine oil takes about 10 to 20 minutes, so that the work efficiency is poor. In addition, consumers have to change oil during business hours of the maintenance factory, which is extremely inconvenient, such as limiting the timing of oil change.

  In addition, every engine oil includes packaging materials such as engine oil cans or bottles, opening seals, labels, etc. In addition to the cost of the engine oil itself, the cost of the packaging material and the cost of manpower required to change the oil However, consumers have to pay for it, and changing the engine oil costs about NT $ 100 each time and costs several hundred yuan. This cost is not a big burden for consumers, but from a cost standpoint, consumers will forget the importance of vehicle maintenance, and the cost for exhausting energy such as gasoline will constantly increase. Coupled with stress, the engine oil change is not performed immediately, but rather, it tends to reduce the maintenance cost by running an extra hundred kilometers, so the engine is easily damaged and the service life is shortened. There was a point.

  Further, as shown in FIG. 7, the conventional engine oil changing device includes one oil gun 91, one dirty oil tank 92, one new oil tank 93, and one hydraulic control module 94. There is a conventional self-type oil changer 9. The oil gun 91 of the conventional self-type oil changer 9 includes one individual outer tube 911, one oil absorption tube 912, and one oil supply tube 913. The oil absorption pipe 912 and the oil injection pipe 913 are all drilled in the outer pipe 911, and one ends of the oil absorption pipe 912 and the oil injection pipe 913 are provided so as to protrude from the outer pipe 911. The hydraulic control module 94 includes one dirty oil pump 941 and one new oil pump 942, and the dirty oil pump 941 is connected to the oil suction pipe 912 and communicated to the dirty oil tank 92. The new oil pump 942 communicates with the oil supply pipe 913 and communicates with the new oil tank 93. Examples of the above-described conventional self-type oil changer have already been posted in “Self-type oil changer” (refer to Patent Document 1) of Chinese public notice No. ZL2013205377709.6.

  Referring also to FIG. 8, when the user operates the above-described conventional self-type oil changer 9 to change the engine oil of the vehicle, first, the outer tube 11 of the oil gun 91 is connected to one engine oil. By inserting into the tank B, one end of the oil absorption pipe 912 and the oil supply pipe 913 is also inserted into the engine oil tank B together. As a result, when the dirty oil pump 941 is activated, a negative pressure is generated with respect to the oil absorption pipe 912, so that the dirty engine oil in the engine oil tank B is sucked up to the dirty oil tank 93 via the oil absorption pipe 912. be able to. On the other hand, when the new oil pump 942 is operated, a negative pressure is generated with respect to the new oil tank 93, so that new oil can be sucked into the oil supply pipe 913 and further injected into the engine oil tank B. Thus, the engine oil change operation can be completed in a self-help manner. Thereby, according to the conventional self-type oil changer 9, the efficiency and convenience of oil change can be improved, and the cost for oil change can be kept low.

  In the above-described conventional self-type oil changer 9, the oil absorption pipe 912 and the oil supply pipe 913 of the oil gun 91 must be inserted into the engine oil tank B together. The device 9 is capable of accurately picking up dirty engine oil and injecting new oil. However, since one end of each of the oil absorption pipe 912 and the oil supply pipe 913 protrudes from the outer pipe 911, when the user tries to insert the outer pipe 911 into the engine oil tank B, the positions of the oil absorption pipe 912 and the oil supply pipe 913 are changed. The oil gun 91 is relatively inconvenient in use because the oil absorption pipe 912 and one end of the oil supply pipe 913 can be inserted into the engine oil tank B at the same time. Become. In addition, in the case of a person who does not know much about the operation of the self-type oil changer 9, it is easy to cause a situation in which the oil absorption pipe 912 or the oil supply pipe 913 is not surely inserted into the engine oil tank B. When 9 is started at low speed, the oil absorption pipe 912 cannot suck up dirty engine oil, or new oil is ejected to the outside of the engine oil tank B via the oil supply pipe 913. There has been a problem that it causes a great deal of trouble to the provider or user of the self-type oil changer 9.

  Further, even if the user inserts the oil absorption pipe 912 and the oil injection pipe 913 together into the engine oil tank B, by adjusting the position of the oil absorption pipe 912 in the process of sucking dirty engine oil, It can be ensured that the end of the oil absorption pipe 912 has been inserted to the bottom of the engine oil tank B, so that the dirty engine oil can be continuously sucked up without sucking up air. However, if the adjustment of the position of the oil absorption pipe 912 is forgotten, the oil supply pipe 913 is likely to drop out of the engine oil tank B, and the user inserts the oil supply pipe 913 into the engine oil tank B during the suction operation of dirty engine oil. Since it is difficult to insert the oil gun 91 back, there is a further negative effect on the convenience of using the oil gun 91.

  Overall, the oil gun of the conventional self-type oil changer is provided with an oil absorption pipe and an oil injection pipe that are independent from each other. In addition to increasing the convenience of using the gun, it was necessary to further increase the practicality and market value of the self-type oil changer.

China Public Notice No. ZL2013205377709.6

  The present invention has been invented in view of such problems, and a first object of the present invention is to provide an oil gun that is easy to operate and can enhance the convenience of use. .

  A second object of the present invention includes one first pipe member and one second pipe member, and the user can freely adjust the position of the first pipe member to use the second pipe member. An object of the present invention is to provide an oil gun that can prevent the situation of falling off from an oil tank.

  A third object of the present invention is to provide a switch member and a stopper plate on the oil gun's oil pipe, thereby controlling the oil pipe to remain open or sealed. An object of the present invention is to provide an oil gun capable of avoiding waste of new oil and capable of accurately controlling the amount of new oil injected.

  In order to achieve the above object, the oil gun according to the present invention includes one oil absorption pipe, one oil supply pipe, and one entry pipe unit. The oil absorption pipe and the oil supply pipe are respectively coupled to the entry pipe unit, and the entry pipe unit includes one first pipe member and one second pipe member. The first pipe member communicates with the oil absorption pipe, the second pipe member communicates with the oil supply pipe, and the first pipe member is accommodated in the second pipe member.

  In the oil gun according to the present invention, the connecting pipe unit includes one connecting member, and the connecting member has one first opening, one second opening, and one third opening communicating with each other. One end of the oil absorption pipe is coupled to the first opening, one end of the oil supply pipe is coupled to the second opening, one end of the second pipe member is coupled to the third opening, and the first pipe member Can be configured to be coupled to one end of the oil absorption pipe by penetrating through the third opening and extending to the first opening.

  In the oil gun according to the present invention, one outer diameter may be formed on the first pipe member, one inner diameter may be formed on the second pipe member, and the outer diameter may be smaller than the inner diameter. Moreover, one clearance gap is formed between the said 1st pipe member and the said 2nd pipe member, and the said clearance gap can also be comprised so that a fluid may distribute | circulate.

  In addition, the oil gun according to the present invention may be made of a soft tube material in which the oil absorption tube and the oil supply tube can be bent and deformed, and the first tube member and the second tube member may be made of a hard tube material. The length of the first pipe member protruding from the third opening of the connecting member may be longer than the length of the second pipe member protruding from the third opening.

  In the oil gun according to the present invention, the oil supply pipe is provided with one switch member and one stop plate, the stop plate is installed inside the oil supply pipe, and the switch member and the stop plate are provided with the oil supply pipe. Can also be used to control the opening or sealing.

  In the oil gun according to the present invention, the switch member is formed with one diaphragm and a control end, the control end is used to receive a control signal, and the switch member is stopped by the diaphragm. The oil supply pipe can be controlled to be in an open state or a sealed state by driving contact with and separation from the plate.

  In the oil gun according to the present invention, the check pipe may be provided in the oil absorption pipe, and the check valve may be used to allow the fluid to flow only in a direction away from the first pipe member. it can. In addition to this, one start switch used to generate one start signal is provided, and one start connection is formed on the start switch so that the start signal is connected to the electrical connection. It can also be formed so as to be transmitted to the outside of the oil gun through the section.

  According to the oil gun of the present invention, there is an advantage that the operation process is simple and the convenience of use is enhanced.

  According to the oil gun of the present invention, the first gun member includes one first pipe member and one second pipe member, and the position of the first pipe member is used for a user to freely adjust the second gun member. The pipe member has an advantage that it is possible to prevent a situation where the pipe member falls off from the oil tank.

  According to the oil gun of the present invention, it is used to control the oil supply pipe to be opened or sealed by providing one switch member and one stop plate on the oil supply pipe of the oil gun. Therefore, there is an advantage that waste of new oil can be avoided and effects such as accurate control of the amount of new oil injected can be achieved.

FIG. 1 is an explanatory view of the appearance of an oil gun according to an embodiment of the present invention. FIG. 2 is an explanatory view of a cross section of an oil gun according to an embodiment of the present invention. FIG. 3 is an explanatory diagram of a structure in which an oil gun according to an embodiment of the present invention is coupled to a conventional self-type oil changer. FIG. 4 is an explanatory diagram of a state in which the oil gun according to the embodiment of the present invention is used by being inserted into the engine oil tank. FIG. 5 is an explanatory diagram of a state in which the oil gun according to the embodiment of the present invention sucks dirty oil. FIG. 6 is an explanatory diagram of a state in which the oil gun according to the embodiment of the present invention injects new oil. FIG. 7 is an explanatory view of the structure of a conventional self-type oil changer. FIG. 8 is an explanatory view of a state in which a conventional oil gun is used by being inserted into an engine oil tank.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an explanatory view of the appearance of an oil gun according to an embodiment of the present invention, and FIG. 2 is an explanatory view of a cross section of the oil gun according to an embodiment of the present invention. Referring to FIGS. 1 and 2, the oil gun 1 according to the embodiment of the present invention includes one oil absorption pipe 11, one oil supply pipe 12, and one entry pipe unit 13. The oil absorption pipe 11 and the oil supply pipe 12 are respectively coupled to the entrance pipe unit 13. The inlet pipe unit 13 includes one first pipe member 131 and one second pipe member 132, the first pipe member 131 communicates with the oil absorption pipe 11, and the second pipe member 132 communicates with the oil supply pipe 12. The first pipe member 131 is accommodated in the second pipe member 132.

  More specifically, the entry pipe unit 13 includes a single connecting member 133, and the connecting member 133 may be formed of a three-way pipe or other pipe material in which a plurality of openings are formed. The connecting member 133 is formed with one first opening 133a, one second opening 133b, and one third opening 133c communicating with each other. One end of the oil absorption pipe 11 is coupled to the first opening 133a, one end of the oil supply pipe 12 is coupled to the second opening 133b, and one end of the second pipe member 132 is coupled to the third opening 133c.

  Since the first pipe member 131 is accommodated in the second pipe member 132, the first pipe member 131 extends through the third opening 133c to the first opening 133a and is coupled to one end of the oil absorbing pipe 11. Thus, the first pipe member 131 is formed to communicate with the oil absorption pipe 11. Also, one end of the lubrication pipe 12 and one end of the second pipe member 132 are coupled to the second opening 133b and the third opening 133c, respectively, and the second opening 133b and the third opening 133c are openings that communicate with each other. The two-pipe member 132 is formed so as to communicate with the lubrication pipe 12.

  The first pipe member 131 has one outer diameter d, and the second pipe member 132 has one inner diameter D. The outer diameter d is smaller than the inner diameter D, and the first pipe member 131 is formed so as to penetrate through the second pipe member 132. Therefore, the first pipe member 131 is formed so as to be accommodated in the second pipe member 132, and there is one piece between the outer peripheral wall of the first pipe member 131 and the inner peripheral wall of the second pipe member 132. A gap is formed. This gap can be used for fluid (for example, oil) to circulate.

  In addition, the oil gun 1 is provided with one start switch 14, and the start switch 14 is formed with one electrical connection portion 141. The start switch 14 has various conventional switch structures such as a button switch or a lever switch, and is used to generate a single start signal. Since the electrical connection 141 is a conductive wire, the start signal is electrically connected. It is transmitted to the outside of the oil gun 1 through the part 141.

  FIG. 3 is an explanatory view of a structure in which an oil gun according to an embodiment of the present invention is coupled to a conventional self-type oil changer. Referring to FIG. 3, when the oil gun 1 according to the embodiment of the present invention is actually used, the oil gun 1 is replaced with the conventional self-type oil changer 9 described above instead of the conventional oil gun 91. Can be combined. The oil absorption pipe 11 and the oil supply pipe 12 of the oil gun 1 can be connected to the dirty oil pump 941 and the new oil pump 942 of the hydraulic control module 94, respectively. The new oil can be introduced into the vehicle from the new oil tank 93 through the oil supply pipe 12 (this will be described in detail later).

  The type of oil that can be changed by the conventional self-type oil changer 9 is not particularly limited. For example, various oils such as engine oil and gear oil can be changed. Further, the structure of the conventional self-type oil changer 9 can be changed so as to correspond to the difference in use object (for example, a motorcycle, a passenger car, a freight car, etc.). In the following description, a conventional self-type oil changer 9 applied to change the engine oil of a motorcycle will be described as an example, but it will be easily understood that the present invention is not limited to this. .

  FIG. 4 is an explanatory diagram of a state in which the oil gun according to the embodiment of the present invention is used by being inserted into the engine oil tank. Referring also to FIG. 4, the second pipe member 132 of the entry pipe unit 13 is used for a user to insert into one engine oil tank B of the vehicle. Since the first pipe member 131 is accommodated in the second pipe member 132, when the second pipe member 132 is inserted into the engine oil tank B, the first pipe member 131 is simultaneously inserted into the engine oil tank B. Is done.

  The electrical connection portion 141 of the start switch 14 can be electrically connected to one control unit 95 of the conventional self-type oil changer 9, and the user has inserted the second pipe member 132 into the engine oil tank B. Thereafter, the user can turn on the start switch 14 to transmit one start signal to the control unit 95 and start the engine oil replacement operation. However, since the start switch 14 can also be installed directly in the conventional self-type oil changer 9, it is necessary for the technical field of the present invention that the start switch 14 is not necessarily an essential part of the oil gun 1 of the present invention. It is easy to come up with what belongs.

  FIG. 5 is an explanatory diagram of an operating state when the oil gun according to the embodiment of the present invention sucks dirty oil. Referring to FIG. 5, after confirming that the user has already inserted the second pipe member 132 into the engine oil tank B, the start switch 14 is turned on so that the control unit 95 operates the dirty oil pump 941. By controlling, a negative pressure can be formed with respect to the oil absorption pipe 11. Since the first pipe member 131 communicates with the oil absorption pipe 11, the first pipe member 131 also has a negative pressure, so that the dirty oil in the engine oil tank B can be removed from the first pipe member 131 and the oil absorption pipe 11. It is sucked up to the dirty oil tank 93 via.

  FIG. 6 is an explanatory view of an operating state when the oil gun of the present invention injects new oil. Referring to FIG. 6, after the operation of sucking up the dirty oil is completed, the control unit 95 controls the operation of the new oil pump 942, thereby forming a negative pressure on the new oil tank 93. can do. Due to this negative pressure, new oil is sucked up into the lubrication pipe 12, and the second pipe member 132 communicates with the lubrication pipe 12, so that the new oil in the lubrication pipe 12 causes the second pipe member 132 to move. It is injected into the engine oil tank B via the self-type engine oil change work.

  The first pipe member 131 penetrates through the third opening 133c of the connecting member 133 and extends to the first opening 133a so as to be directly coupled to one end of the oil absorption pipe 11, and the first pipe member 131 is connected to the oil absorption pipe 11 and Since it is formed so as to communicate with each other, the dirty oil is surely sucked up via the first pipe member 131 and the oil absorption pipe 11.

  On the other hand, since the second opening 133b and the third opening 133c of the connecting member 133 are openings that communicate with each other, the second pipe member 132 is formed so as to communicate with the lubrication pipe 12, and the first pipe member 131 and the first opening 133c. A gap is formed between the two pipe members 132, and this gap is used for fluid flow, so that new oil in the oil supply pipe 12 can be surely passed through the second pipe member 132 to the engine oil tank B. Is injected into. At this time, since the first pipe member 131 is already coupled to one end of the oil absorption pipe 11, the new oil in the oil supply pipe 12 flows toward the first opening 133a after passing through the second opening 133b and absorbs oil. It will not be possible to enter the tube 11.

  As is apparent from the above, the oil pipe 1 according to the embodiment of the present invention is provided with the entrance pipe unit 13, and the entrance pipe unit 13 includes the first pipe member 131 and the second pipe member 132, and the first pipe The member 131 communicates with the oil absorption tube 11, the second tube member 132 communicates with the oil supply tube 12, and the first tube member 131 is accommodated in the second tube member 132, so that the oil gun 1 is actually In use, the first pipe member 13 can be positioned together in the engine oil tank B simply by inserting the second pipe member 132 into one engine oil tank B.

  Thus, when the user inserts the above-described conventional oil gun 91 into the engine oil tank B, unless the positions of the oil absorption pipe 912 and the oil supply pipe 913 are adjusted, one end of the oil absorption pipe 912 and the oil supply pipe 913 is connected to the engine oil tank. Compared to the fact that the first tube member 131 and the second tube member 132 in the oil gun 1 of the embodiment of the present invention cannot be inserted simultaneously into B, the first tube member 131 and the second tube member 132 are formed in a double tube structure of inner and outer tubes. Since the one pipe member 131 is accommodated in the second pipe member 132, the first pipe member 131 and the second pipe member 132 can be connected to the engine oil simply by inserting the second pipe member 132 into the engine oil tank B. It can be surely inserted into the tank B at the same time, and the effect of reliably increasing the convenience of using the oil gun can be achieved.

  In the process of sucking up dirty oil, the position of the first pipe member 131 can be freely adjusted by the user, so that the end of the first pipe member 131 has already extended to the bottom of the engine oil tank B. Therefore, the first pipe member 131 can continue to suck up dirty oil without sucking up air.

  Further, since the second pipe member 132 is fixed to the outer periphery of the first pipe member 131, the second pipe member 132 is detached from the engine oil tank B when the user freely adjusts the position of the first pipe member 131. Never do. When the user adjusts the position of the oil absorption pipe 912 of the conventional oil gun 91, the oil supply pipe 913 is easier to drop off from the engine oil tank B. According to the oil gun 1 of the embodiment of the present invention, the second It is possible to reliably prevent the situation in which the pipe member 132 is dropped from the engine oil tank B, and it is possible to avoid a negative effect on the convenience of use of the oil gun 1.

  3 and 4, in this embodiment, the oil absorption pipe 11 and the oil injection pipe 12 are preferably formed of a soft tube material that can be bent and deformed, and one cannula outside the oil absorption pipe 11 and the oil injection pipe 12. 15 can be provided. The cannula 15 can provide a protective effect when the oil absorbing pipe 11 and the oil supplying pipe 12 are used to cover a portion located outside the conventional self-type oil changer. On the other hand, the first pipe member 131 and the second pipe member 132 of the entry pipe unit 13 can be formed of a hard pipe material (for example, a metal pipe or a plastic pipe), but the present invention is not necessarily limited thereto.

  It should be noted that the first pipe member 131 and the second pipe member 132 of the entry pipe unit 13 can be formed so that the lengths protruding from the third opening 133c of the connecting member 133 are the same or not, In the present invention, these are not limited. Preferably, since the first pipe member 131 is used to suck up dirty oil and the second pipe member 132 is used to inject new oil, the length of the first pipe member 131 protruding from the third opening 133c. Is formed to be longer than the length of the second tube member 132 protruding from the third opening 133c. As a result, the end of the first pipe member 131 can be surely extended to the bottom of one engine oil tank B, so that the dirty oil in the engine oil tank B is removed by the above-described dirty oil suction operation. Effectively sucks cleanly.

  Referring to FIG. 2 again, one check valve 111 can be provided in the oil absorption pipe 11. The check valve 111 is a one-way valve having a stop valve structure that is used so that the fluid flows only in a single direction, and the check valve 111 is only along the direction in which the fluid is separated from the first pipe member 131. Used to flow. As a result, as shown in FIG. 5, the dirty oil in the engine oil tank B is sucked up via the first pipe member 131 and the oil absorption pipe 11.

  However, as shown in FIG. 6, after the dirty oil sucking operation is completed, there is a possibility that some dirty oil that has not been sucked up to the dirty oil tank 93 may remain in the oil absorbing pipe 11. Since the check valve 111 can prevent the fluid from flowing along the direction of the first pipe member 131, the check valve 111 causes the remaining dirty oil in the oil absorption pipe 11 to flow into the engine oil tank. It is possible to effectively avoid circulation to B.

  2 and 3, in the present embodiment, the lubrication pipe 12 is additionally provided with one switch member 121 and one stop plate 122. The switch member 121 can be formed of a switch structure such as an electromagnetic valve, and the stop plate 122 is installed inside the lubrication pipe 12. The switch member 121 and the stop plate 122 are used to control the lubrication pipe 12 to be opened or sealed.

  More specifically, the switch member 121 is formed with one partition plate 121a and one control end 121b. Since the control end 121b can receive a control signal from the control unit 95 by being electrically connected to the control unit 95 of the conventional self-type oil changer 9, the separation plate 121a contacts or separates from the stop plate 122. Can be driven. Further, referring also to FIG. 5, in the process of sucking up dirty oil, the control member 95 drives the switch member 121 to control the partition plate 121a so as to contact the stop plate 122. Since the oil pipe 12 is formed as a seal, new oil in the oil supply pipe 12 can be prevented from flowing into the second pipe member 132.

  On the other hand, referring to FIG. 6, after completing the operation of sucking up dirty oil, the control unit 95 drives the switch member 121 to control the separation plate 121a to be separated from the stop plate 122. Since the oil pipe 12 is left open, new oil is injected into the engine oil tank B through the second pipe member 132 in the oil supply pipe 12.

  By installing the switch member 121 and the stop plate 122, the conventional self-type oil changer 9 can be controlled so that the oil supply pipe 12 is opened or sealed, so that only a new oil injection operation is performed. By controlling the oil supply pipe 12 to be opened, it is possible to prevent new oil from accidentally flowing into the second pipe member 132 and being wasted in the process of sucking up dirty oil or waiting. At the same time, it can be used to control the total amount of fresh oil flowing into the second tube member 132. Thus, according to the oil gun 1 of the embodiment of the present invention, by installing the switch member 121 and the stop plate 122, there are effects such as prevention of waste of new oil and accurate control of the new oil injection amount. Can do.

  In summary, according to the oil gun of the present invention, the operation process is simple, and the first pipe member of the entry pipe unit is simply inserted into the single oil tank by inserting the second pipe member of the entry pipe unit. In addition, since it can be inserted into the oil tank and it can be ensured that the first pipe member and the second pipe member are inserted into the oil tank at the same time, there is an effect that the convenience of use is reliably improved. Can play.

  Further, according to the oil gun of the present invention, the first pipe member is accommodated in the second pipe member, so that the position of the first pipe member can be freely adjusted by the user. Since it is possible to reliably prevent the situation where the member falls off the oil tank, it is possible to avoid a negative influence on the convenience of use of the oil gun.

  Furthermore, the oil gun of the oil gun according to the present invention is provided with another switch member and one stopper plate, and can be controlled so that the oil pipe is opened or sealed. Can be used to control the total amount of new oil flowing into the second pipe member, while preventing the new oil from accidentally flowing into the second pipe member and being wasted during sucking or waiting. Therefore, effects such as prevention of waste of new oil and precise control of the amount of new oil injected can be achieved.

  The present invention may be implemented in other ways without departing from the spirit and essential characteristics thereof. Accordingly, the preferred embodiments described herein are exemplary and not intended to be limiting.

DESCRIPTION OF SYMBOLS 1 Oil gun 11 Oil absorption pipe 111 Check valve 12 Oil supply pipe 121 Switch member 121a Separator 121b Control end 122 Stop plate 13 Inlet pipe unit 131 First pipe member 132 Second pipe member 133 Connecting member 133a First opening 133b Second opening 133c 3rd opening 14 Start switch 141 Electrical connection part 15 Sleeve 9 Conventional self-type oil changer 91 Conventional oil gun 911 Outer pipe 912 Oil absorption pipe 913 Oil supply pipe 92 Soil oil tank 93 New oil tank 94 Hydraulic control module 941 Dirty oil pump 942 New oil pump 95 Control unit B Engine oil tank d Outer diameter D Inner diameter

Claims (9)

An oil gun including one oil absorption pipe (11), one oil supply pipe (12), and one entry pipe unit (13), wherein each of the oil absorption pipe (11) and the oil supply pipe (12) is the entry pipe. Coupled to the unit (13), the entry pipe unit (13) includes one first pipe member (131) , one second pipe member (132), and one connecting member (133) . The one pipe member (131) communicates with the oil absorption pipe (11), the second pipe member (132) communicates with the oil supply pipe (12), and the first pipe member (131) communicates with the second pipe. A first opening (133a), a second opening (133b) and a third opening (133c) which are housed in the member (132) and communicate with each other are formed in the connecting member (133). One end of the oil absorption pipe (11) is the first opening (133a), one end of the lubrication pipe (12) is coupled to the second opening (133b), one end of the second pipe member (132) is coupled to the third opening (133c), and the first tube member (131) is Nuki穿the third opening (133c), and by being drawn to the first opening (133a), and characterized that you coupled with one end of the oil pipe (11) Oil gun to do.   The first pipe member (131) has one outer diameter (d), the second pipe member (132) has one inner diameter (D), and the outer diameter (d) is the inner diameter (D). 2. The oil gun according to claim 1, wherein the oil gun is smaller. The gap according to claim 2 , wherein a gap is formed between the first pipe member (131) and the second pipe member (132), and the gap is used for fluid flow. Oil gun.   The oil absorption pipe (11) and the oil supply pipe (12) are made of a soft pipe material that can be bent and deformed, and the first pipe member (131) and the second pipe member (132) are made of a hard pipe material. The oil gun according to claim 1, wherein   The length of the first pipe member (131) protruding from the third opening (133c) of the connecting member (133) is longer than the length of the second pipe member (132) protruding from the third opening (133c). The oil gun according to claim 1, wherein The oil supply pipe (12) is provided with one switch member (121) and one stop plate (122), and the stop plate (122) is installed inside the oil supply pipe (12), and the switch member ( 121) and the stop plate (122) are used to control the lubrication pipe (12) to be in an open or sealed state, according to any one of claims 1 to 5 . Oil gun. The switch member (121) has one partition plate (121a) and one control end (121b). The control end (121b) is used to receive a control signal, and the switch member (121) The oil supply pipe (12) can be controlled to be opened or sealed by driving the partition plate (121a) so as to contact or separate from the stop plate (122). The oil gun according to claim 6 . The oil absorption pipe (11) is provided with one check valve (111), and the check valve (111) flows so that the fluid flows only in the direction away from the first pipe member (131). It is used, The oil gun as described in any one of Claims 1-5 characterized by the above-mentioned. It further includes one start switch (14) used to generate one start signal, and the start switch (14) is provided with one electrical connection (141), so that the start signal is the electrical switch. The oil gun according to any one of claims 1 to 5 , wherein the oil gun is transmitted to the outside of the oil gun through a general connection part (141).

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