JP6960675B2 - Milking machine teat cup connection structure - Google Patents

Description

The present invention comprises a milking bucket that is used by being connected to a negative pressure source during milking and a teat cup that is connected to the milking bucket via a milk tube, away from the therapeutic teat and other teats. Concerning the teat cup connection structure of a milking machine capable of milking a teat that is located and cannot be used with a normal milking unit.

Conventionally, as a milking system using a milking bucket, a vacuum source, a milking bucket, a milking unit connected to the milking bucket and provided with a channel blocking mechanism that can be opened and closed manually, and a vacuum source are connected. The vacuum introduction means is provided with a vacuum introduction means for introducing a vacuum pressure into the upper part of the milking bucket, and a pulsator that generates a pulsating vacuum pressure by receiving the distribution of the vacuum pressure from the vacuum source and supplies the vacuum pressure to the milking unit. Is further provided with a check valve that opens toward the vacuum source side (see Patent Document 1), which has been proposed by the applicant.

This milking system includes a bucket milker configuration in which raw milk such as dairy cows squeezed by a teat cup is stored in a milking bucket, and a milk claw to which four teat cups are connected is arranged. According to this, when milking one teat, such as a teat to be treated or a teat located away from another teat, separately from the other teats, one of four teat cups is used. Only books are used, and the other three teat cups are bent at the connecting tube part (short milk tube part extended to the side connected to the milk claw of the teat cup liner) to block the passage leading to the vacuum source. In some cases, the method of not using the product may be taken.

However, when using only one of these four teat cups, only that one teat cup will be attached to one nipple, and the milk claw and the other three will be attached. The weight of the milking unit, including the teat cup, will be concentrated on one teat in an unbalanced state. For this reason, the one nipple is pulled strongly in an unbalanced state, which puts a burden on the one nipple.

Further, conventionally, as a milk claw of a milking machine, a low vacuum pressure chamber is provided on the bottom surface of a milk storage chamber which occupies most of the milk claw via a claw diaphragm, and a high vacuum pressure chamber for discharging milk from the milk storage chamber is provided. A substantially L-shaped milk outflow pipe is provided in the area so as to deliver milk to the valve accommodating portion, and the inlet opening of the milk outflow pipe is provided at a position where it can face and contact the upper surface of the claw diaphragm. A pressure-regulating gap is formed, the middle part of the milk outflow pipe passes through the space in the milk storage chamber and opens to the side surface, and an on-off valve is provided in the middle of the milk outflow path (see Patent Document 2). , Proposed by the applicant.

In such a milk claw, for example, for dairy cows, four teat cups are provided so as to be connected. To use this to separate and milk one teat, such as a teat to be treated or a teat located away from the other teat, one of the four teat cups connected to the milk claw. Regarding the teat cup, a method of connecting a bucket for a quarter milker, which is a container for storing raw milk, to the milk claw and using one teat cup (separation milking method by a quarter milker) may be adopted. The milk claw and the bucket for the quarter milker, and the bucket for the quarter milker and one teat cup are each connected by a milk tube. In addition, for the other three teat cups that are normally connected to the milk claw, raw milk can be milked in the usual way.

However, in this quarter milker, since the bucket for the quarter milker and one teat cup are connected by a milk tube, the tube passage becomes long. When the thin and long tube passage is extended by the milk tube in this way, the fluctuation range of the internal pressure becomes large during milking at the tip of the teat cup liner that includes the teat end by attaching the teat cup to the teat. It ends up. When the fluctuation of the internal pressure applied to the teat end becomes large in this way, drop let's (regurgitation of raw milk inside the teat cup liner) is likely to occur, and the milking efficiency is lowered. In addition, due to the occurrence of the drop let's, the teat cup may come off while the papillary end remains in a vacuum state. Further, since the fluctuation of the internal pressure applied to the teat end becomes large, there is also a problem that the teat is burdened.

Japanese Unexamined Patent Publication No. 2011-217648 (page 1) Japanese Unexamined Patent Publication No. 2003-52259 (page 1)

The problem to be solved regarding the teat cup connection structure of the milking machine is that it is difficult to attach the teat cup in a well-balanced manner so as not to burden the nipple in the configuration using the conventional bucket milker, and the conventional one. In the configuration using a quarter milker, at the tip of the teat cup liner including the teat end, the fluctuation range of the internal pressure tends to be large during milking, so that the milking efficiency is easily lowered and the teat cup is easily detached. The large fluctuation of the internal pressure makes it easier to put a burden on the nipple.

Therefore, an object of the present invention is that the teat cup can be attached in a well-balanced manner so as not to burden the teat, and the fluctuation of the internal pressure applied to the teat end in the teat cup (fluctuation of the degree of vacuum during milking) is stabilized to be small, thereby milking efficiency. The purpose is to provide a teat cup connection structure for a milking machine that can be improved and milked more appropriately.

The present invention includes the following configurations in order to achieve the above object.
According to one form of the teat cup connection structure of the milking machine according to the present invention, a milking bucket used by being connected to a negative pressure source at the time of milking and a teat connected to the milking bucket via a milk tube. A teat cup connection structure of a milking machine including a cup, and one buffer for suppressing fluctuations in the degree of vacuum during milking is arranged between the teat cup and the milk tube. It is connected like.

Further, according to one form of the teat cup connection structure of the milking machine according to the present invention, it is provided so as to be continuously extended from the body of the teat cup liner in the teat cup shell of the teat cup to the outside of the teat cup shell. The connecting tube portion of the teat cup liner, the inlet portion of the buffer connected to the connecting tube portion, and the outlet portion of the buffer connected to the milk tube are provided in a linearly arranged state. It can be characterized by being present.

Further, according to one form of the teat cup connection structure of the milking machine according to the present invention, the buffer may be provided with an on-off valve mechanism for opening and closing communication with the negative pressure source. ..

Further, according to one form of the teat cup connection structure of the milking machine according to the present invention, it is provided so as to be continuously extended from the body of the teat cup liner in the teat cup shell of the teat cup to the outside of the teat cup shell. It can be characterized in that a bleed hole is provided in the connecting tube portion of the teat cup liner.

Further, according to one form of the teat cup connection structure of the milking machine according to the present invention, the teat cup and the buffer can be provided by a transparent member.

According to the teat cup connection structure of the milking machine according to the present invention, the teat cup can be mounted in a well-balanced manner so as not to burden the teat, and the fluctuation of the internal pressure applied to the teat end (fluctuation of the degree of vacuum during milking) in the teat cup can be observed. By stabilizing it small, it has a special advantageous effect that the milking efficiency is improved and milking can be performed more appropriately.

It is a morphological example of the teat cup connection structure of the milking machine which concerns on this invention, and is the side view which shows the state which one teat cup is connected to the milking bucket via a buffer and a milk tube. It is a front view which shows the form example of the teat cup connection structure of the milking machine which concerns on this invention. It is sectional drawing which shows the morphological example of the teat cup connection structure of the milking machine which concerns on this invention.

Hereinafter, a morphological example of the teat cup connection structure of the milking machine according to the present invention will be described in detail with reference to the attached drawings (FIGS. 1 to 3). As a basic configuration, the teat cup connection structure of this milking machine is a milking bucket 10 used by being connected to a negative pressure source 11 at the time of milking, and a teat connected to the milking bucket 10 via a milk tube 15. A cup 20 is provided. The negative pressure source 11 is not particularly limited, but is used by connecting the negative pressure source of the pipe milker via a known connecting means (not shown) connected to the negative pressure source connecting tube 12. be able to.

Then, in the present invention, a buffer 30 that suppresses fluctuations in the degree of vacuum during milking is connected between one teat cup 20 and the milk tube 15 so that one is arranged for each teat cup 20. There is. The buffer 30 of this embodiment is more than the tubular suction flow path on the upstream side (inlet side) and downstream side (outlet side) of the connected raw milk so as to buffer the fluctuating flow of the fluid sucked in vacuum. The buffer chamber 33 is provided in a shape that expands the suction flow path so as to have a large volume. That is, the buffer 30 includes a buffer chamber 35 which is a bulge in which the volume of the flow path is expanded, and the flow of the fluid can be buffered by expanding and contracting the flow path caused by the intervention of the buffer chamber 35. It is configured. Further, in this embodiment, the flow path on the outlet 32 side of the buffer 30 through which the raw milk flows out is formed in an L shape so that the raw milk can be prevented from flowing out linearly and buffered by bending the suction flow path. ing. According to this, the form of the suction flow path can be expanded and complicated in the middle, and the flow of the sucked fluid can be buffered, so that the fluctuation of the degree of vacuum during milking can be suppressed.

According to this, the teat cup 20 can be attached in a well-balanced manner so as not to burden the teat, and the fluctuation of the internal pressure applied to the teat end (fluctuation of the degree of vacuum during milking) in the teat cup 20 is stabilized to be small, thereby milking efficiency. Can be improved and milked more appropriately.
That is, in the present invention, the buffer 30 is provided smaller and lighter than the milk claw having a buffer function of a normal milking unit, and one teat cup 20 is provided in a milk tube via one of the buffers 30. Since it is connected to 15, it is light and the center of gravity is not easily biased, and the teat cup 20 can be mounted in a well-balanced manner so as not to burden the nipple. Since one buffer 30 is connected to one teat cup 20, the fluctuation range of the internal pressure can be suppressed to be small at the tip of the teat cup liner 22 including the teat end, thereby preventing drop let's. By shortening the milking time, the milking efficiency can be improved, the teat cup 20 can be prevented from coming off, and the fluctuation of the internal pressure is small, so that a special advantageous effect of not imposing a burden on the teat is obtained.

Further, in this embodiment, the connecting tube portion of the teat cup liner 22 provided so as to be continuously extended from the body portion 22a of the teat cup liner 22 in the teat cup shell 21 of the teat cup 20 to the outside of the teat cup shell 21. The 22b, the inlet portion 31 of the buffer 30 connected to the connecting tube portion 22b, and the outlet portion 32 of the buffer 30 connected to the milk tube 15 are provided in a linearly arranged state.

That is, in this embodiment, one teat cup 20, a buffer 30, and a milk tube 15 are arranged linearly in the vertical direction when used for milking. More specifically, the passage of the connecting tube portion 22b of the teat cup liner 22 and the passage of the inlet portion 31 of the buffer 30 are connected so as to be continuous in a concentric state with the tubular axes aligned. Therefore, the straight pipes are connected to each other. Further, the passage of the outlet portion 32 of the buffer 30 and the passage of the milk tube 15 connected to the milking bucket 10 are connected so as to be continuous in a concentric state with the tubular axes aligned. It is a form of connection between straight pipes.

In this embodiment, the teat cup liner 22 and the milk tube 15 are made of elastic or flexible rubber-like or plastic-like material, and the inlet portion 31 of the buffer 30 made of hard plastic. And the outlet portion 32 are connected in a state of being press-fitted into their respective connection ends. This connection form is the same as the form in which the teat cup liner 22 and the milk tube 15 are connected to a general milk claw, but according to this, it is appropriately disassembled during maintenance such as cleaning. It is easy to work with and easy to work with.

According to the connection form of the one teat cup 20, the buffer 30, and the milk tube 15, the milk tube 15 hangs linearly below the teat cup 20 and the buffer 30 in a natural manner due to gravity in a well-balanced manner. Therefore, it can be attached to the nipple in a well-balanced manner so as not to burden the nipple. Further, in this embodiment, as shown in FIG. 1, the milk tube 15 is arranged in a simple bending form after being linearly continuous downward from the buffer 30, and the teat cup 20 hangs down straight from the papilla. It is in a form that can be done. Therefore, according to this connection form, it is easier to balance as compared with the form of the milking unit to which the conventional milk claw is connected, and the external force is twisted by bending the flexible tube. It is a form that is simpler and easier to absorb so that bending habits do not occur, and synergistically, it is a form that does not burden the nipple.

Further, in this embodiment, the buffer 30 is provided with an on-off valve mechanism 40 that opens and closes communication with the negative pressure source 11. That is, the buffer 30 and the on-off valve mechanism 40 are integrally configured, and are compact and easy to operate.

As shown in FIG. 3, the on-off valve mechanism 40 of this embodiment has the following configuration.
First, an L-shaped passage A (virtual line in FIG. 3) is provided in the inner central portion of the buffer 30 (the central portion of the buffer chamber 33) so as to be continuously bent in an L shape from the outlet portion 32 of the buffer 30. The opening 35 at the tip of the tip (see) is provided so as to be opened in a direction orthogonal to the connection direction of one teat cup 20, the buffer 30, and the milk tube 15. According to this, the flow path can be bent as shown in the milk flow direction B (arrow) shown in FIG. 3, and the fluctuation of the degree of vacuum during milking can be suppressed as described above. Then, the on-off valve 41 is located at a position facing each other so that the opening 35 can be opened and closed, and extends from the rear end side of the central portion of the on-off valve 41 so as to be able to reciprocate in the opening and closing direction for opening and closing the opening 35. The shaft portion 42 of the form is inserted and supported through a through hole 34a provided in the lid-shaped portion 34 forming the outer wall of the buffer chamber 33 of the buffer 30. Further, an operation button portion 43 is fixed to an end portion of the shaft portion 42 of the on-off valve 41 located outside the buffer 30, and is located between the inner surface of the operation button portion 43 and the outer surface of the lid-shaped portion 34. Is arranged with a spring 45.

The spring 45 of this embodiment is composed of a coil spring, and is always urged to separate the on-off valve 41 from the opening 35 so that the opening 35 is in the open state. However, when the operation button portion 43 is pushed against the urging force of the spring 45, the on-off valve 41 moves so as to close the opening 35, and the on-off valve 41 is attracted to the opening 35 to shut off the vacuum. It is configured so that it can be done.

According to the on-off valve mechanism 40, the vacuum can be appropriately shut off, and when the milking operation is completed, the teat cup 20 can be appropriately separated from the teat so as not to burden the teat. ..
By the way, in a conventional milking unit having a structure in which a plurality of teat cups are connected to a milk claw, the milk claw is provided with an on-off valve mechanism for shutting off a vacuum applied to all the teat cups. Therefore, in the conventional milking unit, in order to cut off the vacuum for each teat cup, the thin-walled portion formed in the connecting tube portion of the teat cup liner may be pressed or bent. However, the operation of detaching each of the teat cups requires some tricks and is not always easy to perform.

On the other hand, in the on-off valve mechanism 40 of this embodiment, one teat cup 20 is corresponded to the one on-off valve mechanism 40 described above, and the operation button portion 43 is simply pushed in. This can be easily performed, the vacuum can be reliably and appropriately cut off, and one teat cup 20 can be preferably detached.

Further, according to the on-off valve mechanism 40 of this embodiment, the vacuum can be shut off by pressing the operation button portion 43, so that it is necessary to provide a portion for performing an operation such as bending on the connection tube portion 22b of the teat cup liner 22. The size of the connecting tube portion 22b can be set short. By shortening the size of the connecting tube portion 22b in this way, even when the breast is in a low position, the teat cup 20 is attached in a state of being appropriately hung on the nipple so as not to put a burden on the nipple. It will be easier.

Further, in this embodiment, the connecting tube portion of the teat cup liner 22 provided so as to be continuously extended from the body portion 22a of the teat cup liner 22 in the teat cup shell 21 of the teat cup 20 to the outside of the teat cup shell 21. A bleed hole 50 communicating with the atmosphere is provided in 22b. In the bleed hole 50 of this embodiment, a bush having a through hole formed as a bleed hole 50 for reinforcement is press-fitted into a through hole provided in the connection tube portion 22b of the teat cup liner 22 formed of silicone rubber. It is provided by the configuration fitted in the state.

According to this, the bleed hole 50 is provided directly below the milking portion above the position where the buffer 30 is provided. That is, since the suction passage of raw milk is communicated with the atmosphere at a position closer to the part where milking is performed, the milked raw milk can flow down more smoothly without flowing back, and the milking efficiency is improved. be able to. Further, when the operation button 43 is pushed in to shut off the vacuum on the upstream side of the opening 35, the inside of the teat cup liner 22 communicates with the atmosphere through the bleed hole 50, so that the suction force inside the teat cup liner 22 Will decay and disappear, making it easier to separate the teat cup 20 from the nipple.

Further, in this embodiment, the teat cup 20 and the buffer 30 are provided by a transparent member. According to this, since the flow of raw milk during milking can be monitored and confirmed, the milking situation related to prevention of overmilking, confirmation of abnormal milk, etc. can be appropriately grasped, and the timing of withdrawal of the tea cup can be appropriately determined. , Safety can be improved.

Further, in the present embodiment, one teat cup 20 is connected to the milking bucket 10 via the buffer 30 and the milk tube 15, but the present invention is not limited to this, and a plurality of teats are used. It is also possible to configure the cup 20 to be connected to the milking bucket 10 via a buffer 30 or a milk tube 15 corresponding to each teat cup 20 on a one-to-one basis.

Further, in this embodiment, the pulsator 60 is provided on the lid 13 of the milking bucket 10, and is connected to the connection port 21a for the pulsator tube by the pulsator tube 61. The function of the pulsator 60 is the same as that of a general milking machine, and the description thereof will be omitted.
Further, the pulsator 60 may be provided with connection ports for a plurality of pulsator tubes on the side of the pulsator 60 so that a plurality of pulsator tubes 61 can be connected.
Further, the milk tube 15 and the pulsator tube 61 can be branched by interposing a Y-shaped tube, and can be configured so that a plurality of teat cups 20 can be connected.

The separate milking milker (see FIG. 1) provided with the teat cup connection structure of the milking machine described above can be used not only alone but also at the same time as a normal milking unit to improve the efficiency of milking work. In addition, according to this separate milking milker, when milking one nipple separately from other nipples for inspection during treatment, when milking takes longer than other nipples, from the other nipples It can be used for various purposes, such as when the teat cup cannot be reached by a normal milking unit that is far away. In addition, this separate milking milker can be set in a pipe milker for automatic cleaning.

Although various examples of suitable forms have been described above with respect to the present invention, the present invention is not limited to this form example, and is not limited to milking of dairy cows, and is applicable to milking of other mammals. It goes without saying that many modifications can be made without departing from the spirit of the invention.

10 Milking bucket 11 Negative pressure source 12 Negative pressure source connection tube 13 Lid 15 Milk tube 20 Teat cup 21 Teat cup shell 21a Connection port for pulsator tube 22 Teat cup liner 22a Body 22b Connection tube part 30 Buffer 31 Inlet part 32 Outlet 33 Buffer chamber 34 Lid hole 34a Through hole 35 Opening 40 Open / close valve mechanism 41 Open / close valve 42 Shaft 43 Operation button 45 Spring 50 Bleed hole 60 Pulsator 61 Pulsator tube AL L-shaped passage B Milk flow direction

Claims (5)

A teat cup connection structure of a milking machine including a milking bucket used by being connected to a negative pressure source during milking and a teat cup connected to the milking bucket via a milk tube.
A buffer that suppresses fluctuations in the degree of vacuum during milking is connected between the teat cup and the milk tube so that one is arranged for each of the teat cups .
A connecting tube portion of the teat cup liner provided continuously extending from the body portion of the teat cup liner in the teat cup shell of the teat cup to the outside of the teat cup shell, and a buffer connected to the connecting tube portion. A teat cup connection structure of a milking machine, characterized in that an inlet portion of the milking machine and an outlet portion of a buffer connected to the milk tube are provided in a linearly arranged state. A teat cup connection structure of a milking machine including a milking bucket used by being connected to a negative pressure source during milking and a teat cup connected to the milking bucket via a milk tube.
A buffer that suppresses fluctuations in the degree of vacuum during milking is connected between the teat cup and the milk tube so that one is arranged for each of the teat cups .
A bleed hole is provided in the connecting tube portion of the teat cup liner which is continuously extended from the body of the teat cup liner in the teat cup shell of the teat cup to the outside of the teat cup shell. Featuring a milking machine teat cup connection structure. A bleed hole is provided in the connecting tube portion of the teat cup liner that is continuously extended from the body of the teat cup liner in the teat cup shell of the teat cup to the outside of the teat cup shell. The teat cup connection structure of the milking machine according to claim 1. The teat cup connection structure of a milking machine according to any one of claims 1 to 3, wherein the buffer is provided with an on-off valve mechanism for opening and closing communication with the negative pressure source. The teat cup connection structure of a milking machine according to any one of claims 1 to 4, wherein the teat cup and the buffer are provided by a transparent member.

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