JP2609571B2 - Sliding valve in milk tap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention opens and closes an opening provided in a milk tap mounted on a milk pipe in order to connect an opening formed in a milk pipe and a milk tube through a plug. Related to a sliding valve.

[0002]

2. Description of the Related Art As a conventional sliding valve of this type, a frame is mounted on both sides of a connection port of a milk tap, a pair of rods is passed over the frame, and a sliding valve body is inserted into the rod. In the sliding valve body, the bottom is formed with a hemispherical cylindrical valve interposed and a spring coil interposed between the gantry and valve body, and projections are provided on both sides of the connection port of the milk tap, There has been known an arrangement in which a hemispherical bottom surface of a bulb and a projection make point contact with each other.

[0003]

Such a conventional product is configured such that when the valve is opened and closed, the valve does not come into contact with a portion other than the connection port of the milk tap. However, the bottom of the bulb is in slight point contact with the projection. Further, although the connection port of the milk tap is opened and closed by a valve, there is a disadvantage that the entire valve becomes too heavy because it relies on the weight of the valve itself and the suction pressure of the milk pipe. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described drawbacks of the related art, and has as its object to provide a structure in which the bottom of the valve does not come into contact with other milk tap parts and the valve itself can be lightened.

[0004]

That is, the present invention relates to a sliding valve mounted on a milk tap having a connection hole mounted on an upper opening of a milk pipe. A sliding valve carriage in which a hole for a collar is drilled from one side of the carriage to the other side so as to partially communicate with the valve sliding hole on both sides of the hole; A pair of guide pins connected to the bottom of the hole and protruding from the hole, a pair of guides protruding in a direction opposite to the guide pin, and both sides of a connection hole of a milk tap for slidably supporting the guide and the guide pin; And two collars connected to the guide pins of the valve carriage.
A coil spring is interposed between the collar and the bottom of the collar insertion hole of the valve carriage, the tip of the collar on the carriage side is formed in a tapered shape, and the valve sliding hole has flanges on both sides. A cylindrical valve with a bottom is inserted, the highest part of the collar inserted into the guide pin is arranged above the lowermost point of the flange of the valve, and the flange provided on the side surface of the cylindrical valve together with the carriage. This object is achieved by a sliding valve in a milk tap configured to abut a collar inserted into a guide pin when moving horizontally.

[0005]

In the sliding valve according to the present invention, since the guide pin is slidably supported by the mount, the valve carriage slides on the connection port of the milk tap. At this time, since the bottomed cylindrical valve is configured to be able to slide up and down in the valve sliding hole provided in the valve carriage, move the carriage in the horizontal direction from the state where the connection port is closed. As a result, the flange provided on the side surface of the valve comes into contact with the distal end (tapered shape) of the collar inserted into the guide pin, and the valve gradually rises along the inclined surface. As a result, the bottom surface of the valve is held in a raised state and does not contact the surface of the milk tap. Conversely, when the carriage is horizontally moved in the opposite direction, the contact state between the collar of the valve and the collar descends along the inclined surface, and the contact state with the collar is released. It is possible.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. In the figure, reference numeral 1 denotes a milk pipe on which the product of the present invention is mounted. An opening 2 is provided in some places of the milk pipe 1, and an outer periphery of the opening 2 is sealed by a rubber packing 4. Milk tap 3 is attached. On the milk tap 3, a gantry 5 and gantry 6a, 6b are vertically connected at positions facing each other with the opening 2 interposed therebetween, and guide holes are formed in the gantry 5 and the gantry 6a, 6b, respectively. The interval between the gantry 6a and 6b is set slightly larger than the outer diameter of the pipe connected to the connection port of the milk tap 3.

Reference numeral 8 denotes a sliding valve carriage slidably supported by the milk tap 3, which has a substantially circular valve sliding hole 7 at the center thereof.
On both sides, two holes 10 for inserting a collar are drilled from the side of the valve carriage 8 to the other side. In this embodiment, the valve sliding hole 7 and the hole 10 are partially cut at equal intervals. The valve slide hole 7 is provided with a bottomed cylindrical valve 9 having a hemispherical bottom and flanges 9a, 9a attached to the upper edge thereof. Guide pins 11, 11 are connected to the bottom of the hole 10 for inserting the collar, and guides 12, 12 are provided on the side surface opposite to the hole 10.
Is connected. These guide pins 11, 11 and the guide
The length of 12, 12 is determined by connecting the valve carriage 8 to the right base 6a,
The guide pins 11 and 11 are set to have such a length that the guide pins 11 and 11 do not come off from the guide holes when the valve carriage 8 comes into contact with the gantry 5 when the valve carriage 8 comes into contact with the base 5.

Collars 13, 13 are fitted into the guide pins 11, 11, and the tips of the collars 13, 13 are formed in a tapered shape tapering toward the valve carriage 8.
Further, a bias is provided by interposing a coil spring 14 between the valve carriage 8 and the groove 13a provided at the center of the tapered portion of the collars 13, 13. The length of the collar is 5
It is preferable that the other end is set slightly closer to the gantry 5 than the center position where the valve 9 inside the carriage 8 closes the opening.

Reference numeral 15 denotes a semicircular notch for allowing the pipe of the insertion fitting to abut and slide on the milk tap 3 together with the valve carriage 8. In this embodiment, the valve 9 is
After being housed in the hole of the valve carriage 8, it is closed by the lid 16, and is urged via the coil spring 18 to press the valve 9 downward. The lower portions of the flanges 9a, 9a mounted on both sides of the valve 9 are formed in a tapered shape as shown in the figure, and this shape may be an obliquely inclined surface, and may take various forms.

In the sliding valve according to the present embodiment having the above-described configuration, the coil springs are
The collars 13 and 13 are fitted and inserted with the interposed member 14, and the guide pins 11 and 11 are inserted into the guide holes of the gantry 5 in this state. And insert the guides 12, 12 into the guide holes. Then, the valve carriage 8 is moved toward the gantry 6 a by the force of the coil spring 14, and the valve 9 closes the connection port of the milk tap 3.

Next, when the connection pipe of the insertion fitting (not shown) is mounted on the milk tap 3, the pipe is brought into contact with the semicircular cutout 15 provided on the valve carriage 8 and The valve carriage 8 is pushed into the gantry 5 side. Then, the valve carriage 8 starts to move along the guide pins 11, 11, but the collars 13, 13 inserted into the collar insertion holes 10.
And the lower portions of the flanges 9a, 9a provided on both sides of the valve 9 come into contact with each other, and since both are formed in a tapered shape, they slide with little resistance, and as a result, the coil of the valve 9 The valve 9 is pushed up against the force of the spring 14, so that the bottom surface of the valve 9 is separated from the connection port of the milk tap 3 and is lifted without contacting the other milk tap surface when the valve carriage 8 moves. The state will be maintained. Then, when the connection port is positioned on the notch of the valve carriage 8, the pipe of the insertion fitting is connected and connected to the milk pipe.

Next, when the connection between the milk pipe 1 and the insertion fitting is released, the valve carriage 8 moves to the gantry 6a, 6b side by the urging force of the coil spring 14, but the valve 9
The collars 9a, 9a are slid on a tapered slope from the state of being mounted on the collar 13, and finally the collar 13 and the collars 9a, 9a
The valve 9 is pressed downward by the force of the coil spring 18 to release the contact state with the milk tap 3.
Close the connection port.

[0013]

As described above, the sliding valve according to the present invention is sanitary because the bottom surface of the valve does not come into contact with the surface of another milk tap exposed to the outside air when opening and closing the valve and the connection port. In addition, since the valve carriage is mounted by passing the guide pin and guide between the mounts through the coil spring, it does not come off due to vibration etc., but it can be easily attached and detached by the operator's hand , Maintenance is easy.

[Brief description of the drawings]

FIG. 1 is a front vertical sectional view showing a state in which a sliding valve according to the present invention is mounted on a milk pipe.

FIG. 2 is a cross-sectional plan view showing a state in which a sliding valve is mounted on the milk tap.

FIG. 3 is a cross-sectional plan view showing a state in which a connection port of a milk tap is closed by a sliding valve.

FIG. 4 is a side longitudinal sectional view showing the movement of the sliding valve.

FIG. 5 is a sectional view taken along line AA of FIG. 3; DESCRIPTION OF SYMBOLS 1 Milk piping 2 Opening 3 Milk tap 4 Packing 5 Base 6a, 6b Base 7 Valve sliding hole 8 Sliding valve carriage 9a, 9b Flange 10 hole 11 Guide pin 12 Guide 13 Color 14 Coil spring

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor David Arthur Schulz, Meadow Wedda Blue 7848, 54636 Home, Wisconsin, USA (72) Inventor Minoru Matsuzawa 1-16-115 Yoshida, Nagano City, Nagano Prefecture

Claims (2)

(57) [Claims] 1. A slide valve mounted on a milk tap having a connection hole mounted on an upper opening of a milk pipe, wherein a substantially circular valve slide hole is formed at a lower center portion of the main body of the milk tap. A sliding valve carriage in which a hole for a collar is drilled from one side of the carriage to the other side so as to partially communicate with the sliding hole, and a hole connected to the bottom of the hole for inserting the collar, A pair of projecting guide pins, a pair of guides projecting in a direction opposite to the guide pins, and two pedestals connected to both sides of a connection hole of a milk tap that slidably supports the guides and the guide pins; A coil spring is interposed between the collar and the bottom of the collar insertion hole of the valve carriage. The distal end of the collar is formed in a tapered shape, a bottomed cylindrical valve having flanges on both sides is inserted into the valve sliding hole, and the highest part of the collar inserted into the guide pin is positioned at the upper end of the valve flange. It is arranged above the lower point and is configured so that when the flange provided on the side surface of the cylindrical valve moves horizontally with the carriage, it comes into contact with the collar inserted into the guide pin. Sliding valve in milk tap. 2. The sliding valve according to claim 1, wherein said bottomed cylindrical valve is urged downward by an urging means such as a coil spring.