JP2517656Y2 - Liquid storage tank - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid storage tank used by being attached to a device body such as a water storage type ice making machine.

[0002]

2. Description of the Related Art As one of liquid storage tanks, a connection pipe is connected and an electric liquid level detector such as a float switch is attached so that atmospheric pressure is applied to the liquid surface contained inside. The above-mentioned method is disclosed in Japanese Utility Model Laid-Open No. 63-134364.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, when the liquid storage tank is attached to a mobile device body, or the liquid storage tank is a tank for storing discharged liquid and the place of use should be discharged. Away from
Alternatively, when the liquid storage tank is a tank for storing the supply liquid and the place of use is far away from the liquid supply source, it is difficult to connect the liquid storage tank to the liquid storage tank. It is necessary to desorb from and supply the liquid to or from the liquid. However, in the conventional liquid storage tank, since the connection pipe is connected to the single tank and the electric liquid level detector is attached,
When detaching the liquid storage tank from the device body, it is necessary to detach the connection pipe and the wiring of the electric liquid level detector from the liquid storage tank, which is very troublesome. The present invention has been made to address the above-described problems, and an object of the present invention is to provide a liquid storage tank that can be easily attached to and detached from a device body to easily supply or discharge a liquid.

[0004]

In order to achieve the above object, in the present invention, the liquid storage tank is internally connected with a connecting pipe and with an electric liquid level detector such as a float switch. The main tank that is designed to apply atmospheric pressure to the liquid level that is stored in the
A cap is detachably attached to the upper part, and it is possible to communicate with the main tank below the liquid level detected by the electric liquid level detector through a detachable connecting pipe with a self-sealing connector. And can be detached from the device body
With pipe connection and wiring connection other than the connection pipe
It is composed of a sub tank that is not installed . When the above-mentioned electric liquid level detector detects the upper limit liquid level and the lower limit liquid level (either a single unit or a pair may be used), the supply / discharge port of the sub tank is It is arranged above the upper limit liquid level detected by the electric liquid level detector, and the main tank and the sub tank are self-located below the lower limit liquid level detected by the electric liquid level detector. It is desirable to connect them through a detachable connecting pipe with a seal type connector.

[0005]

In the liquid storage tank of the present invention configured as described above, the main tank and the sub tank communicate with each other through the connecting pipe below the liquid level detected by the electric liquid level detector. Therefore, at least up to the liquid level detected by the electric liquid level detector, the liquid level in the main tank and the liquid level in the sub-tank are the same, and the liquid in the liquid storage tank consisting of the main tank and the sub-tank The position can be accurately detected by a single electric liquid level detector attached to the main tank. Also, since the sub-tank can be detached from the main body of the equipment by detaching the connecting pipe with a self-sealing connector, there is almost no liquid leakage at the time of attachment / detachment. The work can be easily performed, and troubles due to incorrect assembly do not occur at all, and the liquid can be easily supplied or discharged. Further, the electric liquid level detector detects the upper limit liquid level and the lower limit liquid level, and the supply / discharge port of the sub tank is arranged above the upper limit liquid level detected by the electric liquid level detector. In addition, when the main tank and the sub tank are connected below the lower limit liquid level detected by the electric liquid level detector through a detachable connecting pipe with a self-sealing connector, In addition to the action and effect, an effect of preventing overflow from the supply / discharge port of the sub tank can be expected.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows a water storage type auger ice making machine having a liquid storage tank according to the present invention, that is, a drainage tank 13, and the ice making machine is a mobile equipment body (not shown).
The water system passage has a water tank 11 for storing water for ice making and a function of keeping the water level of the ice making chamber R substantially constant, and a humidifier for supplying mist to the ice pan A It is composed of an ice making water tank 12 that also functions as a shaker sprayer, a drainage tank 13 that stores the waste water discharged from the ice making machine, and the cooling system is a compressor 21, a pressure switch 22, a condenser as is well known. Two
3, a fan motor 24, a dryer 25, a constant pressure automatic expansion valve 26, an evaporator 27, and the like. The ice making chamber R is formed between an auger 33 that is driven to rotate by a motor 31 via a gear unit 32 and a cooling cylinder 34 (the lower outer circumference is cooled by the evaporator 27) disposed around the auger 33. The upper end of the cooling cylinder 34 is an ice discharge port 35.

The water supply tank 11 has a float switch S1.
The main body 11a to which (the one that operates when the remaining amount in the water supply tank 11 is low to stop the ice making operation of the auger ice making machine) and the atmosphere for closing the water supply port 11a1 provided at the upper part of the main body 11a are provided. It consists of a cap 11b that can communicate with each other, and the water inside is supplied to the ice making water tank 12 through an electric water supply pump 14, a water purifier 15, a three-way valve 16 and a normally closed electromagnetic water supply valve 17. There is. In this embodiment, by connecting the connection pipe 41 having the strainer 18 to water and switching the three-way valve 16 so that the strainer 18 and the electromagnetic water supply valve 17 communicate with each other, the ice water is supplied from the water supply through the electromagnetic water supply valve 17. It is also possible to supply water to the water tank 12 (the water supply pump 14 is not driven at this time).

The ice making water tank 12 has a float switch S
2 (Operates when the water level in the ice-making water tank 12 becomes less than the set value, and when the water supply is not connected, the water supply pump 1
4 and the electromagnetic water supply valve 17, and in the case of a water connection, the electromagnetic water supply valve 17 is operated to operate the overflow pipe 4 described later.
4, which maintains the water level at a substantially set value in cooperation with 4) and a vibration exciter 19. The inside of the ice making chamber R has a constant water level through a connection pipe 42 and an air vent tube 43 attached to the bottom. The mist generated by the operation of the vibration exciter 19 is connected to the downstream side of the fan motor 24 through one of the ducts 51 attached to the upper part and the passage P through the other duct 52. The air blown by the fan motor 24 is used to send the air to the passage P. The passage P is formed between the upper portion of the cooling cylinder 34 and the guide 53, and the upper end of the guide 53 is the spray port 54. An overflow pipe 44 connected to the main tank 13A of the drainage tank 13 is attached to the ice making water tank 12, so that excess water is discharged from the ice making water tank 12 to the main tank 13A of the drainage tank 13. Has become.

The drainage tank 13 is provided with a connecting pipe 4 described later.
6, a main tank 13A adapted to apply atmospheric pressure to the water surface housed therein, and a cap 13 capable of being ventilated.
The sub-tank 13B is provided with a drain port 13b2 to which b1 is detachably attached , and the main tank 13A.
The overflow pipe 44 and the connection pipe 4 described above.
5, 46, 47 and the connecting pipe 48 are connected, and a float switch S3 for detecting the upper limit water level H (operates when the water level in the drainage tank 13 reaches the upper limit water level H to stop the ice making operation and will be described later. The electromagnetic switch valve 61 is closed to block the inflow of water from the ice pan A) and the float switch S4 for detecting the lower limit water level L (required drainage when draining using a drainage pump 63 described later). Is installed to stop the drainage pump 63), and only the connecting pipe 48 is connected to the sub tank 13B.

The connection pipe 45 is for guiding the dissolved water from the bottom of the ice pan A to the main tank 13A, and is led out from the bottom of the ice pan A to the connection port 13a1 of the main tank 13A shown in FIG. A solenoid valve 61 of a normally open type is interposed in the middle (specifically, as shown in FIG. 2, the main tank 13A is connected).
Assembled above). The overflow pipe 44 has its lower end connected to the connection port 13a2 of the main tank 13A shown in FIG.

On the other hand, the connection pipe 46 is for discharging excess ice from the ice pan A to the main tank 13A, and is required for the ice pan A so as to project upward from the bottom of the ice pan A by a predetermined amount. It is provided to store a certain amount of ice, and at the lower end thereof, the main tank 13A shown in FIG.
Is connected to the connection port 13a3 of the above, and an ice detecting device 62 for detecting the fall of ice (which detects the fall of ice and stops the ice making operation for a set time) is interposed in the middle thereof. (Specifically, as shown in FIG. 1, ice pan A
Is attached to the bottom surface of). In addition, the connection pipe 47
Is for discharging the water in the main tank 13A to the outside, and has a rising portion 47a in the middle portion so as to be connected to the connection port 13a4 of the main tank 13A shown in FIG. , An electric drainage pump 63 (move the mobile equipment body near the drainage path to remove the drainage tank 1
It is used when the water is drained directly to the drainage channel from No. 3).

The connecting pipe 48 is connected to the main tank 13A.
Is a flexible pipe for communicating the sub tank 13B with the sub tank 13B, and is connected at the base end to the connection port 13a5 of the main tank 13A (opened in the main tank 13A below the lower limit water level L) shown in FIG. And is connected to the connection port 13b3 of the sub tank 13B shown in FIG. 3 (located below the lower limit water level L when mounted on the device body) via the self-sealing one-touch connector 70 at the tip. It is designed to be detachable.

The connector 70, as shown in FIG.
A plug 72 and a connection pipe 4 that are liquid-tightly attached to the connection port 13b3 of the sub tank 13B via a seal ring 71.
8 is constituted by a socket 73 which is attached in a liquid-tight manner at the tip of the device. The plug 72 includes a case 72a screwed into the connection port 13b3 of the sub tank 13B, and a case 72a.
An O-ring 72b fitted to the outer periphery of the distal end of the plug 72 to seal the joint between the plug 72 and the socket 73; a pin 72c, a seal ring 72d, an annular holder 72e, a compression coil spring 72f and an annular It is constituted by a retainer 72g or the like having a radial slit on the inner periphery, and when it is assembled to the connection port 13b3 of the sub tank 13B, the retainer 72g is connected to the connection port 13b.
3, a pin 72c, a seal ring 72d,
The holder 72e and the like are moved by the spring 72f to the case 72.
The pin 72c and the distal end of the seal ring 72d are urged toward the tapered surface 72a1 of FIG. 1a to releasably contact the tapered surface 72a1 to perform self-sealing.

On the other hand, the socket 73 has a case 73 having a mounting portion 73a1 to which the tip of the connecting pipe 48 is mounted.
a, an operation ring 73d that is assembled with a spring 73b at the tip of the case 73a and is slidable in the axial direction and is prevented from falling off by a clip 73c, and is movably assembled in a mounting hole 73a2 of the case 73a in a radial direction. The operation ring 73d restricts the movement from the outer periphery and projects inward, and is fitted into the annular groove 72a2 of the case 72a of the plug 72 to couple the plug 72 with the socket 73, and assembled into the case 73a. Pin 73f,
It is composed of a seal ring 73g, an annular holder 73h, a compression coil spring 73i, a retainer 73j having a radial communication hole, and the like. The retainer 73j is screwed to the case 73a in a liquid-tight manner.
The seal ring 73g, the holder 73h, etc.
By i, the pin 73f and the tip of the seal ring 73g are urged toward the tapered surface 73a3 of the case 73a so as to be detachably contacted with the tapered surface 73a3 and self-sealed.

In the connector 70, however, the operation ring 73d is moved against the spring 73b to allow the ball 73e to move outward, and the socket 73 is fitted into the plug 72 for operation. Ring 7
By removing the finger from 3d, the socket 73 is connected to the plug 72.
The socket 73 can be removed from the plug 72 by performing the reverse operation.
In a state where the socket 73 is attached to the plug 72,
The plurality of balls 73e in the socket 73 are restricted in movement from the outer periphery by the operation ring 73d and protrude inward to fit into the annular groove 72a2 of the case 72a in the plug 72 to connect the plug 72 and the socket 73 together.
The ring 72b seals the joint between the plug 72 and the socket 73, and the two pins 72c and 73f are engaged with each other at the ends to seal the respective seal rings 72d and 73g and the holder 72e and 73e.
The main tank 13A and the sub tank 13B are moved together with 73h against the respective springs 72f and 73i and away from the respective tapered surfaces 72a1 and 73a3 so that the main tank 13A and the sub tank 13B communicate with each other through the connecting pipe 48.

In the present embodiment constructed as described above, when water is stored in the drain tank 13 up to the upper limit water level H at which the float switch S3 operates, the float switch S3 operates and the auger ice maker stops and electromagnetic opening / closing. The valve 61 closes. Therefore, if the connecting pipe 48 is removed by the connector 70, the sub-tank 13B is removed from the device body, the sub-tank 13B is carried to a place with a drainage channel, drained, and then set in the device body to attach the connecting pipe 48, Water instantaneously flows from the main tank 13A to the sub tank 13B, and the water level becomes the same level. Therefore, the float switch S3 is deactivated, and the ice making operation of the auger ice making machine becomes possible.

By the way, in this embodiment, at least the main tank 13A and the sub tank 13B communicate with each other through the connecting pipe 48 below the lower limit liquid level L detected by the float switch S4 in the drain tank 13. The water level in the main tank 13A and the water level in the sub tank 13B match up to the lower limit liquid level L detected by the float switch S4, and the water level in the drainage tank 13 including the main tank 13A and the sub tank 13B is set to the main tank 13A. It can be accurately detected by a single float switch S4 attached to the. Further, since the sub tank 13B can be detached from the device body by detaching the connecting pipe 48 with the self-sealing connector 70, there is almost no water leakage at the time of detaching, and the detaching portion is provided only at one place of the connector 70. Therefore, the desorption work can be easily performed, the trouble due to the incorrect assembly does not occur at all, and the water can be easily discharged from the drain tank 13. Further, since the drain port 13b2 of the sub tank 13B is arranged above the upper limit water level H detected by the float switch S3, overflow from the drain port 13b2 of the sub tank 13B can be prevented.

In the above embodiment, the present invention is applied to the drain tank 13, but the present invention can be applied to the water supply tank 11 in the same manner. , The connection pipe connected to the water supply pump 14 is connected and the float switch S
The float switch S is equipped with a main tank in which 1 is attached and an atmospheric pressure is applied to the water surface housed inside, and a water supply port which is closed by a cap capable of communicating with the atmosphere.
Below the water level detected by 1, the main tank can communicate with the self-sealing connector through a detachable connecting pipe, and can be attached to and detached from the equipment body.
It is composed of a sub tank that does not have a pipe connection part and a wiring connection part . In the above embodiment, the present invention is applied to the liquid storage tank that stores water, but the present invention can be similarly applied to a liquid storage tank that stores a liquid other than water.

[Brief description of drawings]

FIG. 1 is an overall schematic configuration diagram of a water storage type auger ice making machine having a liquid storage tank, that is, a drainage tank according to the present invention.

FIG. 2 is a side view showing a main tank of a drainage tank.

FIG. 3 is a side view showing a sub tank in the drain tank.

FIG. 4 is a partial cross-sectional view showing a self-sealing connector.

[Explanation of symbols]

13 ... Drainage tank (liquid storage tank), 13A ... Main tank, 13B ... Sub tank, 13b1 ... Cap, 13b2
… Drainage ports, 44, 45, 46, 47… Connection pipes, 48
… Connection pipe, 70… Self-sealing connector, S3
S4 ... Float switch, H ... Upper limit water level, L ... Lower limit water level.

Claims (2)

(57) [Scope of utility model registration request] 1. A main tank, to which a connection pipe is connected, an electric liquid level detector such as a float switch is attached, and an atmospheric pressure is applied to the liquid surface housed inside, and a main tank can be ventilated. The cap is detachably attached
A discharge port is provided on the upper side, and communication is possible with the main tank below the liquid level detected by the electric liquid level detector through a detachable connection pipe with a self-sealing connector, and
Pipe connection part that can be attached to and detached from the device body
And a liquid storage tank composed of a sub tank that does not have a wiring connection part . 2. A main unit which is connected to a connecting pipe and is provided with an electric liquid level detector for detecting an upper limit liquid level and a lower limit liquid level so that an atmospheric pressure is applied to a liquid surface contained inside. Removable tank and ventilated cap
And a main seal below the lower limit liquid level detected by the electric liquid level detector, and the main tank and a self-sealing connector provided above the upper limit liquid level detected by the electric liquid level detector. Can be communicated through the removable connection pipe and can be attached to and detached from the device body.
A liquid storage tank composed of a sub-tank that does not have a pipe connection part and a wiring connection part .