KR920004697B1 - Fuel nozzle - Google Patents

Abstract

No content.

Description

Lubrication nozzle

FIG. 1 is a time chart when additional lubrication is performed with all nozzles open in a lubrication device having an automatic bay tank lubrication function using a conventional lubrication nozzle. FIG.

2 is a time chart when additional oil supply is performed in a half-open nozzle state in the oil supply apparatus as shown in FIG.

3 is an overall configuration diagram of an oil supply apparatus using an oil supply nozzle according to an embodiment of the present invention.

4 is a vertical cross-sectional view of the oil supply nozzle according to the first embodiment of the present invention.

5 is a horizontal cross-sectional view of the oil supply nozzle of FIG.

6 is a perspective view of a part of the receiving plate, roller, photo coupler and slip in the oil supply nozzle of FIG. 4;

7 is a horizontal cross-sectional view of the oil supply nozzle in a state in which the valve body is opened.

8 is a horizontal cross-sectional view of the oil supply nozzle with the valve body closed and the oil passage communicating.

9 is a vertical sectional view showing a valve body, a valve shaft and a sliding rod in a modification of the oil supply nozzle according to the embodiment of the present invention.

10 is a vertical sectional view showing the valve body, the valve shaft, and the sliding rod of the lubricating nozzle in the modified example as shown in FIG. 9 with the auxiliary valve body closed by the valve body and in communication with the oil passage.

11A and 11B are time charts when additional oil supply is performed in the full open state and the half open state, respectively, in the oil supply apparatus having the automatic bay tank oil supply function using the oil supply nozzle of the present invention.

[Industrial use]

The present invention relates to a lubrication nozzle suitable for use in a lubrication device having an automatic man tank lubrication function.

[Private Technology]

As a conventional lubrication device equipped with automatic tank lubrication function, a liquid detection sensor that detects liquid level and emits a signal is installed in the discharge pipe of the lubrication nozzle, and the pump driving motor is controlled by a control device according to the signal output from the liquid detection sensor. It is known that it is possible to perform additional lubrication while repeating the rotation and stop, and to automatically perform accurate man tank lubrication.

The oil supply nozzle used for this type of oil supply device can be inserted into the fuel supply port of the fuel tank, and the operation lever should be kept in the valve open state. The determination of the tank is made by the control device according to the signal from the liquid sensor. Lose.

That is, the pump motor is stopped at the time when the liquid sensor is turned on after t ₀ seconds from the presentation of the oil supply in FIG. 1, and it is determined whether the liquid sensor is turned on after a predetermined foam disappearance waiting time t ₁ (for example, 5 seconds). Determine.

When it is turned OFF, the bubbles disappear and the pump motor is driven for t ₂ seconds (e.g. 100 msec), and after a predetermined waiting time t ₃ seconds (e.g. 2 seconds) it is again determined whether the liquid sensor is ON. .

When it is turned OFF, the bubble disappears and the pump motor is driven again for t ₄ seconds (e.g. 50 msec), and it is determined whether or not the liquid sensor is ON after t ₃ seconds for a predetermined waiting time. It is known to be configured to determine that oil supply has been performed.

[Problem to Solve Invention]

The above described kind of technology has the following problems. That is, in the case of automatic tank oil supply, the operation lever of the oil supply nozzle is carried out while the valve is opened, but in the valve open state, as shown in FIG. 1, the fully open position state for supplying oil suitable for a normal vehicle and As shown in FIG. 2, there is a half-opening position for lubrication suitable for a vehicle having a small fuel tank such as a motorcycle, and the flow rate of the fluid flows due to the valve open state.

For this reason, even if the predetermined bubble extinction waiting time t ₁ and the predetermined waiting time t ₃ are set as the determination factor of whether or not the tank is _full , the actual waiting time of each of the waiting times t ₁ and t ₃ is different. Time changes.

That is, in FIG. 1, the actual waiting times are t ' ₁ and t' ₃ , whereas in FIG. 2, the actual waiting times are "t ₁ " and "t ₃ ".

As a result, there is a concern that the waiting time as the determination factor changes depending on the valve opening state of the oil supply nozzle, and thus, it is impossible to make an accurate full tank determination.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and provides an oil supply nozzle which enables the additional oil supply after the tank determination to be performed at a constant and stable flow rate regardless of the valve open state, and to perform the fuel tank filling accurately. The purpose.

[Means to solve the problem]

The present invention constructed to solve the above problems has a nozzle body having a flow passage therein and a discharge pipe communicating with the flow passage toward the front end and a valve seat provided in the nozzle body installed to open and close the flow passage. The valve shaft, which is installed on the operating valve body and the nozzle body, which is slidable and is provided at the front end, and the valve body which is installed between the valve shaft and the nozzle body and is electrically operated, is normally pressed in the valve closing direction. It is a sliding path that slides the valve shaft that is resisted against the spring force of the spring and the spring. It has an inlet open at the same time and is located downstream of this valve body to Operation by electric lever with electric valve with valve part which is inserted into the small oil furnace with open outlet in the furnace and slidable in the axial direction to the valve shaft which is normally cut off between the inlet and outlet of the small oil furnace When opening the valve body by operating the sliding rod which is integrally sliding with the lever and the operating lever, and the sliding rod and the valve shaft which are electrically connected, this sliding body From the automatic valve closing mechanism which disengages the coupling of the riding rod and the valve shaft, and when closing the valve body of the valve body, the inlet and outlet ports of the solenoid passage are closed by the sliding rod that is displaced. It is configured to communicate between.

EXAMPLE

Hereinafter, embodiments of the present invention will be described in detail with the accompanying drawings. 3 shows an overall configuration diagram of an oil supply apparatus including the oil supply nozzle 10 of the present embodiment described later.

In Fig. 3, reference numeral 1 denotes a fixed oil supply apparatus main body, which is constituted substantially from the lower case 2 and the upper case 3. In the lower case 2 described above, a pipe 4, one end of which is connected to an underground tank (not shown), is installed, and in the middle of the pipe 4, a pump 6 driven by a motor 5 and a pulse transmitter ( A flow meter 7 having a 7A, a solenoid valve 8 which is normally open, and a hose 9 are connected to the other end of the pipe 4, and a hose 4 is connected to the tip of the hose 9 The oil supply nozzle 10 mentioned above in FIG. 6 is provided.

On the other hand, the lower case 2 is provided with a nozzle accommodating part 11 for accommodating the oil supply nozzle 10 except for the operation of oil supply operation, and the nozzle accommodating part 11 is opened and closed by the locking and peeling of the oil supply nozzle 10. The nozzle switch 12 which comprises this is provided.

Next, the upper case 3 is provided with an indicator 13 for displaying the oil supply amount, the amount of money, and the unit price. 14 is a control device installed in the upper case 3, and in the present embodiment, the control device 14 has a function of displaying the oil supply amount and the like on the indicator 13 by the flow signal from the pulse transmitter 7A; When the oil supply nozzle 10 is removed and the nozzle switch 12 is closed, the motor 5 is started and the oil supply nozzle 10 is caught and the motor 5 is stopped when the nozzle switch 12 is opened. When the liquid level is detected by the liquid detection sensor 26 described later installed in the nozzle 10, the solenoid valve 8 is closed, and after the nozzle switch 12 is opened, the solenoid valve 8 is held in the valve open state again. Has the ability to

In the present embodiment, the solenoid valve 8 described above constitutes an oil supply stop function for closing the valve when the liquid detection sensor 26 detects the liquid level. In addition, the above-mentioned oil supply stop function is not limited to the solenoid valve 8, but may be the pump 6 which drives and stops as the motor 5, In this case, it is not necessary to provide a solenoid valve.

Next, the specific structure of the oil supply nozzle 10 is shown in FIGS. In the figure (21), the nozzle body is formed in a straight bar shape as a whole, and the flow path 22 is provided in the nozzle body 21, and the flow path 22 is provided at the front end of the nozzle body 21. The discharge pipe 23 which communicates with the through hole is drilled coaxially with the nozzle body 21 via the connecting hole member 70 described later. Reference numeral 24 denotes a valve seat disposed in the flow passage 22 and installed in the nozzle body 21 to open and close the flow passage 22, and the valve seat 24 includes a main valve constituting the valve body 25. The body 26 is detachably installed in the seat.

Here, the main valve body 26 is inserted into the insertion hole 27 through which the valve shaft 33, which will be described later, is inserted into the main valve body 26, and at the both sides thereof, the insertion hole 27 and the concave-shaped recess 28 ) And tapered convex portions 29 are formed on the upstream and downstream sides of the flow passage 22, respectively, so that the main passage body 26 communicates with the concave portion 28 and the convex portion 29. 30 and 30 (four in this embodiment) are drilled.

On the other hand, in the nozzle body 21, the shaft support part 31 which is located in the flow path 22 and becomes the shaft insertion hole 31A inside is drilled, and the sleeve 32 is fitted in this shaft insertion hole 31A. It is.

Numeral 33 denotes a valve shaft provided on the shaft support portion 31 in the direction of an arrow A (A ') via the sleeve 32 so as to be retracted from the front end of the valve shaft 33. Like the main body 26, the tapered sub-valve body 34 which forms the valve body 25 and attaches or detaches from the sheet | seat to the recessed part 28 side of the main valve body 26 is formed integrally.

In addition, at the rear end side of the valve shaft 33, a rod insertion hole 35 into which the front end side of the sliding rod 41, which will be described later, is inserted is axially drilled, and a cutout portion 36 opened in the rod insertion hole 35 at the same time. ) Is formed.

And it is inserted into the insertion hole 27 through the main valve body 26 on the front end side of the valve valve 33 of the valve shaft 33, the adjustment for adjusting the valve opening degree of the sub valve body 34 at the front end The nut 37 is attached. 38 is a solenoid passage installed in the aforementioned valve shaft 33, and the solenoid passage 38 is formed in the radial direction of the valve shaft 33, and has a flow passage 22 upstream of the valve body 25. 38 A of inflow holes 38A communicating with the rod 35 and a hole having a diameter smaller than that of the rod insertion hole 35, and are opened in the rod insertion hole 35 to open the flow passage 38B in the axial direction of the valve shaft 33. And a flow path 38B formed at a distal end side of the flow path 38B and opening in the flow passage 22 downstream of the valve body 25 and having a diameter smaller than the rod insertion hole 35. The valve seat portion 39 is formed in the middle of the oil passage 38.

And the valve shaft 33 configured as described above is the spring force of the compression spring 40 provided between the sleeve 32 and the sub-valve body 34 is pressed in the direction of the arrow (A '), so that the sub-valve body The valve shaft 33 rests the main valve body 26 on the valve seat 24 as the first contact 34 closes the recess 28 of the main valve body 26.

41 is a sliding rod inserted into the rod insertion hole 35 of the valve shaft 33 described above, and the sliding rod 41 is a small diameter portion 41A formed with a smaller diameter than the rod insertion hole 35. And a rod insertion hole formed in the axial direction at the other end of the valve portion 41B and the small diameter portion 41A of a rubber material, which are contracted to the tip of the small diameter portion 41A and detached from the valve seat portion 39, which has been described above. 41 C of intermediate part sliding to the inner peripheral surface of 35, and the large diameter part 41D axially formed in the rear end of this intermediate part 41C, and sliding to the inner circumferential surface of the sleeve 32 mentioned above. On the outer circumference of the intermediate portion 41C, a coupling groove 42 corresponding to the cut-out portion 36 is formed, and at one end 49B of the contact lever 49, which will be described later, on the large diameter portion 41D. The lever engagement hole 43 to be coupled is drilled.

In addition, the positioning pin 45 embedded in the sleeve 32 is coupled to the first positioning groove 44 formed on the outer circumference of the valve shaft 33, and the rod insertion hole 35 of the valve shaft 33 is engaged. The positioning pin 47 embedded in the intermediate portion 41C of the sliding rod 41 is coupled to the second positioning groove 46 formed on the side, and the cutout portion 36 of the valve shaft 33 The engaging groove 42 of the riding rod 41 is positioned oppositely.

Next, 48 is a lever guide 49 attached to the lower surface of the middle portion of the nozzle body 21 is located in the lever guide 48 so that the bent portion 49A is moved toward the rear portion of the lever guide 48. An L-shaped contact lever rotatably attached in the direction of arrow B (B ') via 50 is provided, and one end 49B of the contact lever 49 is an opening 51 formed in the nozzle body 21. ) And an L-shaped contact lever attached through the one end, and one end 49B of the contact lever 49 is a lever engaging hole of the sliding rod 41 via an opening part 51 formed in the nozzle body 21. 43, the other end 49C extends toward the distal end of the lever guide 48, that is, the distal end of the nozzle body 21.

Reference numeral 52 is a weak spring located in the shaft insertion hole 31A and disposed between the large diameter portion 41D of the sliding rod 41 and the shaft support portion 31 and sliding as the spring force of the spring 52. The rod 41 normally contacts the one end 49B of the connecting lever 49 inserted in the lever engaging hole 443 so that the linking lever 49 and the sliding rod 41 interlock with each other. At the same time, a counterclockwise force is applied to the contact lever 49 about the shaft 50, and the other end 49C of the contact lever 49 is rotated in the direction of the arrow B '.

On the other hand, 53 is an operating lever for sliding the displacement of the valve shaft 33, which is resisted against the spring force of the compressed spring 40, and the operating lever 53 is located within the lever guide 48. The side 53A is installed in the front direction of the lever guide 48 via the shaft 54, and the other end 53B is rotatable in the direction of the arrow C (C ').

Then, the other end 49C of the contact lever 49 is in contact with the intermediate part 53C of the operating lever 53 so as to be slidable, and the operating lever 53 is rotated in the direction of the arrow C '. It is a structure which maintains interlocking.

The other end 53B of the operation lever 53 is coupled to the half stop coupling stop 55 or the fully open coupling stop 56 of the valve body 25 provided in the lever guide 48. As a result, the operating lever 53 is held at a predetermined rotational position around the shaft 54.

Next, 57 during the fifth time indicates an automatic valve closing mechanism for automatically closing the valve body 25 when the liquid level in the tank reaches a predetermined level. Reference numeral 58 is a diaphragm constituting the automatic valve closing mechanism 57, and the diaphragm 58 is disposed on the side surface portion of the rod support portion 31, and the peripheral portion thereof is fixed to the nozzle body 21. The cap 59 is located outside the diaphragm 58 and is provided on the nozzle body 21, and the cap 59 and the diaphragm 58 are input chambers 60.

"자형으로 형성되고 그 대향편(61A)(61A)에는 장공(62), (62)가 형성되고 있다. (63), (63)은 축방향 양단이 전기한 각 장공(62), (62)에 스라이딩 가능하게 끼워진 한쌍의 막대모양 로울러이고, 이 막대모양 로울러(63), (63)은 축방향 양단이 전기한 각 장공(62), (62)에 스라이딩 가능하게 끼워진 한쌍의 막대모양 로울러이고, 이 막대모양 로울러(63), (63)은 밸브축(33)의 절결부(36)으로부터 스라이딩로드(41)의 결합홈(42)에 거쳐서 결합이탈 가능하게 결합하고 있다. (64)는 전기한 압력실(60)내에 위치하고 다이어프램(58)쪽에 설치한 스프링받침(65)와 캡(59)와의 사이에 장설된 스프링이고 이 스프링(64)는 다이어프램(58), 받는판(61)을 경유하여 각 봉상로울러(63)을 스라이딩 로드(41)의 결합홈(42) 내에 끼이게 탄입하고 있다.61 is a receiving plate located on the other side of the pressure chamber 60 and fixed to the central portion of the diaphragm 58, which is shown in FIG.

"Long-shaped, and the opposing pieces 61A and 61A are formed with the long holes 62 and 62. The 63 and 63 are each long holes 62 and 62 which both ends of the axial direction mentioned above. A pair of rod rollers slidably fitted to the rod rollers, and the rod rollers 63 and 63 are slidably fitted to each of the long holes 62 and 62 axially endwise. The rollers 63 and 63 are coupled to each other so that the rod-shaped rollers 63 and 63 can be detachably coupled from the cutouts 36 of the valve shaft 33 via the coupling grooves 42 of the sliding rod 41. 64 is a spring placed in the pressure chamber 60 and installed between the spring bearing 65 and the cap 59 installed on the diaphragm 58 side. The spring 64 is a diaphragm 58 and a receiving plate. Each rod-shaped roller 63 is inserted into the engaging groove 42 of the sliding rod 41 via 61.

In this way, the automatic valve closing mechanism 57 of the present embodiment is roughly configured as a diaphragm 58, a cap 59, a receiving plate 61, a rod roller 63, and a spring 64. Next, reference numeral 66 denotes a sensor unit for detecting the displacement of the diaphragm 58 installed above the nozzle body 21 and controlling the tank for oil supply. The sensor unit 66 is a light emitting element and a light receiving element. A photo coupler 67 having an element and a slit 68 mounted on the receiving plate 61 as shown in FIG. 6 to block the gap between the light emitting element and the light receiving element with the displacement of the diaphragm 58. It is connected to the control apparatus 14 provided in the oil supply apparatus main body 1 via the signal line 69.

Furthermore, 70 is a connecting member which is located downstream from the valve seat 24 described above and fastened as a fastener 71 on the front end of the nozzle body 21, and the discharge pipe 23 is screwed into the connecting member 70. It is settled. In addition, an auxiliary valve 72 is slidably inserted into the valve support portion 70A of the connecting member 70 against the main valve body 26, so that the auxiliary valve 72 is electrically connected to the connecting member 70. As a spring 73 provided between the and), it is normally pressed down to sit on the valve seat 24.

In addition, 74 is an atmospheric communication hole serving as a bubble detection sensor provided at the end portion of the discharge pipe 23, and the atmospheric communication hole 74 is formed in the pressure pipe 75 and the nozzle body 21 disposed in the discharge pipe 23. It communicates with the pressure chamber 60 of the automatic valve closing mechanism 57 via the formed ventilation path 76 sequentially.

On the other hand, 77 and 77 are grooved passages provided in the valve seat 24, and one end of each suction passage 77 is connected to the electric passage 76 between the pressure tube 75 and the pressure tube 75. The other end is in communication with the ring passage 78 between the valve seat 24 and the auxiliary valve 72.

Reference numeral 79 denotes a liquid detection sensor which is positioned at the tip of the discharge pipe 23 and is installed toward the tip of the atmospheric communication hole 74. The detection sensor 79 is a photoelectric liquid detection device comprising a light emitting element and a light receiving element. The sensor is used and connected to the control device 14 in the oil supply device body 1 via the signal line 80. As the liquid detection sensor 79, an ultrasonic liquid detection sensor and a capacitive liquid detection sensor may be used without limitation to the photoelectric liquid detection sensor.

Moreover, 81 in the figure shows the plug which closes the opening part 82 provided in the rear end of the nozzle body 21. As shown in FIG. (83) is a tubular connecting member in which an end portion is screwed to an opening portion (84) formed at an intermediate position of the nozzle body (21) in communication with the oil passage (22), and (85) is a tubular connecting member (83). This joint member 85 is connected to the hose 9 which was mentioned above as a joint member rotatably connected to the front-end | tip side of ().

The oil supply nozzle 10 according to the present embodiment is configured as described above, but the operation thereof will be described next.

First, the oil supply nozzle 10 in which the discharge pipe 23 is inserted into the oil supply hole of the fuel tank is in the state of FIGS. 4 and 5 as a whole before the operation lever 63 is operated.

That is, since the pressure chamber 60 of the automatic valve closing mechanism 57 communicates with the outside via the air passage 76, the negative pressure pipe 75, and the atmospheric communication hole 74 in order, the diaphragm 58 ), The receiving plate 61 is also a spring 64, which is pressed downward in FIG. 3 so that the rod-shaped roller 63 is coupled to the cutout portion 36 of the valve shaft 33 and the sliding rod 41. Engaged in the groove 42, the valve shaft 33 and the sliding rod 41 are integrally sliding in the direction of the arrow A (A ').

As the spring force of the compression spring 40, the main valve body 26 is positioned on the valve seat 24 via the valve shaft 33, and the subvalve body 34 is positioned on the main valve body 26. Hold.

In addition, the sliding rod 41 inserted into the valve shaft 33 is pushed and moved toward the valve body 25 by the spring force of the spring 52, so that the valve portion 41B at the front end thereof is the valve shaft 33. It is located in the valve seat part 39 inside, and it isolate | separates between the inflow hole 38A of the small flow path 38, and the outflow hole 38C, and is the flow path 22 and downstream of the valve body 25 upstream. The ring passage 78, which is the distribution passage 22 of, is completely blocked.

Next, the operation lever 53 was raised in the direction of an arrow C so as to perform lubrication, and the sliding rod 41 was retracted against the spring force of the spring 52 via the connecting lever 49.

As a result, the valve shaft 33 coupled to the sliding rod 41 via the rod roller 63 also slides in the direction of the arrow A against the spring wall of the compression spring 40. The main body 34 is displaced from the main valve 26 so that the micro passage 30 opens and the oil flow of the small flow rate flows from the upstream to the ring passage 78.

In this state, when the operation lever 53 is further raised to stop the half-open coupling stop 55 or the full-open engagement stop 56, the adjustment nut 37 contacts the main valve body 26 to stop the main valve. The main body 26 moves from the valve seat 24 to open the flow passage 22 to open a large flow of fluid, and the auxiliary valve 72 opens the valve as a hydraulic pressure (see FIG. 7).

In addition, at this time, the auxiliary valve 72 is replaced by the sub-valve main body 34 from the main valve main body 26 to open the valve as the oil flow of the small flow rate flows through the valve passage 30. In the state where the valve main body 25 opens the valve and the auxiliary valve 72 opens the valve, the ring-shaped passage 78 serves as a joining passage, and generates pressure in the intake passage 77 as a bantry action, thereby providing a pressure chamber 60. It is intended to suck the air inside.

However, since the atmospheric communication hole 74 communicates with the atmosphere, it does not become pressure enough to displace the diaphragm in the pressure chamber 60. When a predetermined amount of liquid supply is carried out in the fuel tank, the air communication hole 74 is closed as bubbles generated during the jetting or refueling, so that the air cannot be sucked in. Therefore, the air in the negative pressure chamber 60 is sucked in. As a result, the air in the pressure chamber 60 is pressurized and the spring 64 is resisted and the diaphragm 58 is displaced upward during the seventh, and the receiving plate 61 is also displaced upward and the rod roller 63 ) Is separated from the coupling groove 42 of the sliding rod 41.

Since the sliding rod 41 is controlled as the operating lever 53 via the contact lever 49, only the valve shaft 33 receives the rod-shaped roller 63 as a spring force of the compression spring 40. Sliding in the direction of the arrow A 'while sliding in the long hole 62, and seats the valve body 25 in the valve seat 24.

As a result, the valve shaft 33 and the sliding rod 41 fall in the axial direction, the sliding rod 41 falls in the axial direction, and the valve portion 41B of the sliding rod 41 moves the valve in the valve shaft 33. The inlet hole 38A and the outlet hole 38C of the oil passage 38 communicate with each other from the seat 39. (See Figure 8)

Thus, even after the operation of the automatic valve closing mechanism 57, the liquid lever 53 is not affected by which of the half-open engagement stop 55 or the half-open engagement stop 56 is not affected. According to the signal output from the detection sensor 79, it is possible to perform additional lubrication control at a constant low flow rate as the control device 14, so that accurate tank filling can be performed.

When the tank filling is completed, the operating lever 53 flows from the engaging stops 55 and 56, and the sliding rod 41 slides toward the valve body 25 as a spring force of the spring 52. Then, the valve portion 41B is positioned in the valve seat portion 39 so that the inflow hole 38A and the outflow hole 38C of the oil passage 38 are blocked. Furthermore, when the oil supply nozzle 10 is lifted from the fuel tank, the pressure chamber 60 is brought into the atmospheric pressure state, and the rod-shaped roller 63 as the compression spring 64 is inserted into the engaging groove 42 of the sliding rod 41, thereby providing a fourth pressure. It returns to the initial state shown in FIG. And FIG. Finally, when the oil supply nozzle 10 is hooked on the nozzle housing 11, the nozzle switch 12 is opened to stop the motor 5, thereby completing a series of oil supply operations.

Next, the sliding rod 91 according to the modification of the above-described embodiment is shown in FIGS. 9 and 10.

The characteristic of this sliding rod 91 is that the outer diameter of the small diameter portion 91A is such that the small diameter portion 91A on the axial tip side becomes a valve portion for closing the inlet hole 38A of the oil passage 38. It is formed to slide on the inner circumferential surface of the insertion hole 35, and the small diameter portion 91A communicates with the inflow hole 38A, which has been communicated when the valve shaft 33 slides in the valve closing direction. A small diameter communication hole 92 is formed in which the fluid in the 22 is introduced into the flow path 38B.

The sliding rod 91 having the above-described configuration is in the position shown in FIG. 9 during the refueling wait of the oil supply nozzle, and the inlet hole of the small diameter portion 38 is provided in the small diameter portion 91A of the rod 91. It is also in the state which closed 38A.

On the other hand, when the valve shaft 33 slides in the direction in which the automatic valve closing mechanism 57 operates so that the valve body 25 closes the valve, as shown in FIG. 38A and the communication hole 92 of the sliding rod 91 communicate with each other, and further lubrication of a certain amount of oil can be performed.

Fig. 11A and Fig. 11B show examples of oil supply when the oil supply nozzle according to the present invention is used in combination with an oil supply device having an automatic man tank oil supply function as shown in Figs.

As such an automatic oil supply apparatus, the apparatus described in the patent application 58-151867 by the present applicant (Korean Patent Application No. 84-4928) is preferable.

11A and 11B are suitable for the case where the automatic bay tank lubrication is applied to a vehicle having a small fuel tank such as a normal vehicle and a motorcycle, respectively, and the conventional example is shown in solid line for comparison with the conventional example of FIGS. 1 and 2; A case where the invention oil supply nozzle is used is indicated by a broken line.

Also in the case of using the oil supply nozzle according to the present invention, normal oil supply is performed until the time t ₀ at which the liquid detection sensor 79 operates, and then the pump motor 5 is stopped. For convenience of explanation, assuming that the air communication hole 74 of the nozzle is closed at this point as a bubble generated during liquid or lubrication, so that the air cannot be sucked, as described above, the pressure chamber 60 has a pressure and a rod As the roller 63 is released from the engaging groove 42 of the sliding rod 41, the valve shaft 33 slides as the spring force of the compression spring 40, and the valve body 25 is the valve seat 24. At the same time, the ownership passage 38 is opened. In this state, the oil supply nozzle is in a state in which additional oil supply can be performed with a certain amount of oil. Thereafter, if the liquid level decreases after the predetermined bubble disappearance waiting time t ₁ (for example, 5 seconds), the liquid detection sensor 79 is turned off, and the pump motor 5 is driven by t ₂ (for example, 100 msec) to be electrically charged. Additional refueling at a certain reserve is made.

In this case, the oil supply amount is substantially smaller than the oil supply amount in the case of FIGS. 1 and 2, and therefore the influence of the operation of the pump motor 5 on the oil supply amount is relatively smaller than in the prior art. When the liquid detection sensor 79 is turned OFF again after the bubble disappearing waiting time of t ₃ (eg 2 seconds), the pump motor 5 is further driven by t ₄ (eg 50 msec) at the constant flow rate. Additional refueling is repeated. This process is repeated until the liquid detection sensor 79 is stabilized and turned on, and additional oil supply of a certain amount of oil is repeated through the oil passage 38 described above each time.

In such constant low oil supply, the influence of the operation time accompanying the start / stop of the pump motor 5 on the oil supply can be reduced, so that an emergency and accurate automatic bay tank or preset oil supply can be performed.

In addition, the oil supply nozzle 10 according to the present embodiment is a diesel oil applied to a stationary meter as an example, but can also be used in the meter suspended from the high place of the building.

In the present embodiment, the lever guide 48 has a half-open engagement stop portion 55 for engaging and stopping the operation lever 53 so that the opening degree of the valve body 25 can be converted into two stages of half-open and full-open. ) And the fully open coupling stop section 56 is provided, but three or more coupling stop sections may be provided so that the opening degree of the valve body 25 can be changed into multiple stages.

Further, the man tank determination according to the signal output from the liquid detection sensor 79 and the additional oil supply control method thereof are not limited to those shown in FIGS. 1 and 2 and 11a and 11b, for example, a liquid detection sensor. The method of determining whether the time until the signal of the next liquid detection sensor 79 is input by driving the pump 6 after the signal extinction of (79) becomes less than predetermined time may be sufficient.

The present invention has been described above by way of examples, but the present invention may be modified in various ways in accordance with the spirit of the present invention and is not excluded from the present invention.

[Effects of the Invention]

The lubrication nozzle according to the present invention has been described in detail above, and after the automatic valve closing mechanism is operated, in the additional lubrication operation, a small amount of small amount of lubrication is supplied by the flow path even at the gauge position in any of the fully open state or the half open position. Since it is possible to do this, it is possible to perform accurate tank filling.

Claims (8)

The valve seat provided in the nozzle body 21 which has the flow path 22 inside and the nozzle body 21 provided with the discharge pipe 23 which communicates with this flow path at the front end, and the said nozzle body 21 for opening and closing the said flow path. The valve shaft (25) detachably attached to the valve body (25) and the nozzle body (21) provided so as to be slidable, and the valve shaft (33) provided with the valve body at the distal end thereof, and the valve shaft and the nozzle body (21) A spring 52 for interposing the valve body, which is provided in between, in the normal valve closing direction, and an operating lever for opening the valve body that is opened by sliding the valve shaft that is resisted against the spring force of the spring; 53) and the inflow hole 38A which is located upstream from the valve body which is drilled by the valve shaft which has been opened, and is opened up in the flow passage which has been opened. Hole (38C) The valve part 41B which normally cuts off between the inflow hole 38A and the outflow hole 38C inserted and inserted slidably in the axial direction of the valve shaft mentioned above is lost. The sliding rod 41 is integrally slid and displaced by the operating lever 53 and the operating lever 53 and the sliding body is opened when the valve body is opened. An automatic valve closing mechanism (57) which engages the aforementioned valve shaft and releases the sliding rod from the valve shaft when the valve body is closed, and displaces only the valve shaft that is closed when the valve body is closed. A lubricating nozzle, characterized by communicating between an inflow hole and an outflow hole of a small oil passage closed by a sliding rod. 2. The automatic valve closing mechanism (57) according to claim 1, wherein the automatic valve closing mechanism (57) draws air from the atmospheric communication holes in accordance with the movement of the fluid flowing through the circulation passages communicated with the atmospheric communication holes (74) formed at the distal end of the discharge pipe. A vacuum chamber communicating with the venturi effect generating portion and the venturi effect generating portion and closed at the movable diaphragm 58 at one end thereof, and the coupling between the sliding rod 41 and the valve shaft 33 communicated with the diaphragm cooperates with the diaphragm. Lubrication nozzle, characterized in that consisting of a coupling stop means. The oil supply system according to claim 2, wherein the venturi effect-producing portion is a fastening portion formed in a downstream portion of the valve body in the flow passage 22, and is opened in the fastening portion and communicates with the atmospheric communication hole 74. Nozzle. 3. The first and second locking means according to claim 2, characterized in that the engagement stop means are formed on the sliding rod (41) and the valve shaft (33) to engage with the positioning pin (47) which is integrally displaced with the movable diaphragm (58). And a second groove portion, wherein in this engagement position, the sliding rod and the valve shaft are integrally coupled and stopped by the pin in the first and second groove portions. 2. The valve portion (41) according to claim 1, wherein the valve portion (41B) is formed at the tip of a diameter reducing portion formed at the tip of the sliding rod (41), and the valve shaft (33) is located at a position adjacent to the inlet hole (38A). Oil supply nozzle, characterized in that the second valve seat portion 39 is formed in cooperation with the other and the oil inlet hole is formed at a position corresponding to the diameter reduction portion of the sliding rod sandwiched by the sliding material . 2. The valve portion 41B of claim 1, wherein the valve portion 41B is formed by a sliding rod end portion that slides on the valve shaft 33, and the first end portion of the sliding rod corresponds to an electrical inlet hole in the valve shaft. A second opening portion formed on the outer circumferential surface of the sliding rod for sliding to the opening and the valve shaft and a passage connecting the first and second opening portions is formed. Furthermore, the sliding rod and the valve shaft are formed on the valve shaft. The oil supply nozzle, characterized in that a separate oil inlet hole is formed in communication with the second opening portion in the released state. The oil supply nozzle according to claim 1, wherein a liquid surface detection sensor (79) for detecting a liquid surface is provided at the discharging nozzle tip. The oil supply nozzle according to claim 1, wherein the automatic valve closing mechanism (57) is provided with a sensor unit (66) for detecting the opening / closing state of the oil passage (38).

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