JPH0726396U - Overflow prevention device in liquid storage tank - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent liquid from overflowing from the liquid storage tank. [Structure] Detection means 8 provided at an appropriate position on the upper lid 2 of the storage tank 1.
When the float 13 moves up and down, an output signal is generated, the oil supply pump 4 is turned on and off, and the oil level of the oil O in the storage tank 1 is always kept at a constant level, so that the oil O overflows from the storage tank 1. Is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a storage tank overflow prevention device used for supplying oil to an assembling machine in oil, which is used for assembling a valve lash adjuster for an internal combustion engine in oil.

[0002]

[Prior art]

 Since the valve lash adjuster used for the valve operating mechanism of an internal combustion engine has to be installed in the engine in a state in which hydraulic oil is enclosed due to its function, the parts that make up the valve adjuster must be installed in an oil submerged machine. Are assembled.

In such an in-oil mounting machine, in order to prevent air from being mixed into the adjuster, it is necessary to keep the amount of oil in the mounting machine at a constant level. For this reason, an oil storage tank is installed near the submerged assembly machine to replenish the oil in the oil storage tank when the amount of oil in the assembly machine becomes low.

The oil is supplied to the oil storage tank by operating a supply pump connected to an oil tank or other unused submerged assembly machine so that the oil in the storage tank reaches a predetermined amount. At that time, each time the worker operated the switch on the oil pump, the oil supply was stopped.

[0005]

[Problems to be solved by the device]

 As described above, the operator operated the switch of the oil pump each time, which not only saves labor, but also in case the operator forgets to switch it off, the oil overflows from the oil storage tank. However, the oil will be wasted, the surrounding floor surface will be soiled, extra cleaning will be required, and the assembly line will be stopped.

The present invention has been made in order to solve the above-mentioned problems, and the liquid surface in the liquid storage tank is always kept at a constant level to prevent the liquid from overflowing the storage tank. An object is to provide an overflow prevention device in a storage tank.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a liquid supply tank connected to a liquid supply pump and a liquid supply pipe connected to a liquid supply pump. It is characterized in that a detection means for detecting the liquid level of the body is provided, and the detection means is electrically connected to the liquid supply pump to turn on / off the liquid supply pump.

[0008]

[Action]

 When the liquid level of the liquid supplied to the liquid storage tank reaches a predetermined level, the detection means issues an output signal and automatically stops the liquid supply pump, so that the liquid does not overflow from the storage tank. .

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, (1) is an oil storage tank, and (2) is its upper lid.

(3) is an oil supply pipe, the opening end of which is located at the upper part in the oil storage tank (1) through the upper lid (2).

The oil supply pipe (3) is connected via an oil supply pump (4) to an oil tank or an in-oil assembling machine (not shown) that is not in use.

(5) is an oil drain pipe, the open end of which passes through the upper lid (2) and faces the vicinity of the bottom surface in the oil storage tank (1). The oil drain pipe (5) is connected to an oil tank of an in-oil assembling machine (not shown) via an oil feed pump (6).

An oil level detecting means (8) is detachably attached to an oil inlet (7) which is continuously provided on the upper lid (2) so as to face upward. The detecting means (8) is a cap-shaped support body (9) fitted into the oil filling port (7) from above, and penetrates the support body (9) toward the inside of the storage tank (1) with a bolt (10). A hollow support rod (11) fixed downward, a detection rod (12) fixed below the middle part of the rod (11), and a detection rod (12) slidably fitted vertically. It is composed of a magnetic sensor type float (13) inserted. (14) is a stopper.

The periphery of the float (13) is covered with a cylindrical net body (15) fixed to the inner bottom surface of the upper lid (2).

The detection rod (12) and the oil supply pump (4) are electrically connected by a lead wire (16) led out from the upper end of the support rod (11), and the oil supply pump (4) is connected to the detection rod (12). ), It is turned on and off based on the signal.

When the oil supply pump (4) is started and oil (O) is supplied from the oil supply pipe (3) into the oil storage tank (1), the float (13) floats as the oil level rises, When it reaches the specified position, the magnetic sensor operates and sends a signal to the oil pump (4). As a result, the oil supply pump (4) is stopped and the oil supply is automatically stopped.

When the oil feed pump (6) operates and the oil (O) in the oil storage tank (1) is pumped up by the oil feed pipe (5), the oil level and the float (13) descend to a predetermined position. , The oil supply pump (4) is activated again, and the supply of oil (O) is started.

By repeating this operation, the amount of oil (O) in the oil storage tank (1) is kept constant and overflow is prevented.

Since the net body (15) provided around the float (13) prevents the liquid surface from undulating, the float (13) can be smoothly moved up and down and its malfunction is prevented.

[0020]

[Effect of device]

 According to the present invention, the detecting means turns the liquid supply pump on and off to keep the liquid level in the liquid storage tank at a predetermined level at all times, so that the liquid does not overflow from the storage tank. Therefore, not only can labor saving be achieved, but no extra effort is spent in processing the overflowed liquid.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 (1) Oil (liquid) storage tank (2) Upper lid (3) Oil supply (liquid) pipe (4) Oil supply (liquid) pump (5) Oil supply (liquid) pipe (6) Oil supply (liquid) pump (7) Lubrication port (8) Detection means (9) Support (11) Support rod (12) Detection rod (13) Float (14) Stopper (15) Net (O) Oil

Claims (1)

[Scope of utility model registration request] 1. A detection for detecting a liquid level of a liquid in a liquid storage tank at an appropriate position on an upper surface in a liquid storage tank including a liquid supply pipe connected to a liquid supply pump and a liquid supply pipe connected to a liquid supply pump. An overflow prevention device in a liquid storage tank, characterized in that means is provided and the detection means is electrically connected to the liquid supply pump to turn the liquid supply pump on and off.