JPH0430144Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is for liquid delivery, in which the liquid spout can be connected to the liquid spout of a container sealed with a liquid leakage prevention seal. Regarding connectors.

[Prior Art] Normally, the liquid spout of a photographic processing agent container (back-in box) is sealed with a high-frequency seal such as aluminum foil to prevent liquid from scattering during transportation. The cap and liquid spout are affixed in accordance with the law to prevent contamination of the cap and liquid spout due to liquid adhesion. When dispensing liquid from such a container, the cap of the liquid spout is removed, the liquid leakage prevention seal is broken, and then the liquid supply connector is connected to the liquid spout.

[Problems to be solved by the invention] However, in the conventional liquid delivery connector, the liquid leakage prevention seal must be broken before it is attached to the liquid spout, and at this time and when the connector is attached. There is a risk that the liquid may get on your hands, etc., which is a particular problem if the liquid is a powerful drug or other harmful substance. Furthermore, when the connector is removed from the liquid spout, there is a problem in that the liquid in the liquid supply pipe flows backward from the lower end of the connector toward the liquid spout, leaking the liquid to the outside of the container and contaminating the liquid spout.

This idea was created in view of the above circumstances, and can prevent liquid from adhering to hands etc. when attached to the liquid spout, and prevent backflow of liquid when removed from the liquid spout. The purpose of the present invention is to provide a liquid feeding connector that can perform the following steps.

[Means for Solving the Problems] The liquid feeding connector according to this invention includes a connector main body having a hollow portion communicating with a liquid spout of a container sealed with a liquid leakage prevention seal, and a connector body having a hollow portion communicating with a liquid spout of a container sealed with a liquid leakage prevention seal, and a A hollow sliding body is provided to slide and has a channel having a diagonally cut lower end and a hole in a side wall; an annular chamber that surrounds the connector body and communicates with the liquid feeding port; a member that fixes the connector body to the liquid spout so that the lower end of the sliding member faces the seal; and a member that allows the sliding member to slide. an operating means that communicates the hole with the annular chamber and breaks the seal by a lower end of the sliding body, and when the sliding body is retracted into the hollow part, the sliding body The lower end portion is located near the liquid spout and smoothly continues to the inner wall of the hollow portion.

[Function] In the liquid delivery connector according to this invention, the connector body and the liquid spout are fixed by a member so that the opening at the lower end of the connector body faces the liquid leakage prevention seal, and the connector body is opened by the operating means. A hollow sliding body provided in the hollow portion is slid downward. Then, the flow path communicates with the annular chamber through the hole in the side wall of the slider, and the liquid can be sent from the liquid spout to the liquid feed port, and the lower end of the slider protrudes from the lower end opening of the connector body. Break the seal facing this. In this case, since the annular chamber is provided so as to surround a part of the sliding body over the entire circumference, even if the sliding body rotates within the hollow part and the position of the hole is shifted, the hole cannot be moved into the annular chamber. can be easily communicated with. Then, when the sliding body is returned to its original position, the side wall of the sliding body blocks the flow path and the liquid feeding passage to prevent backflow of liquid from the liquid feeding passage to the liquid spout. In particular, when the sliding body is retracted into the hollow part, the lower end of the sliding body is located near the liquid spout and smoothly continues to the inner wall of the hollow part, so that there is no liquid leakage in the flow path. becomes better.

[Example] Hereinafter, an example of this invention will be specifically described with reference to the attached drawings.

As shown in FIG. 1, a container 10 as a bag-in box with a portable handle contains a liquid,
For example, a developer for photographic processing is stored therein.
The outside of the container 10 is covered with a cardboard box 12 to protect the container 10. Container 10
A spout member 14 that opens upward and projects from the cardboard box 12 is provided at the upper end. The lower outer peripheral surface of the spout member 14 and the inner peripheral surface of the clamping member 16 are screwed together, and flanges 15 and 19 formed on the outer periphery of the spout member 14 and the clamping member 16 allow liquid in the container 10 and the cardboard box 12 to be A liquid spout 17 is formed by sandwiching the peripheral edge of the spouting opening from above and below. Further, the upper outer peripheral surface of the spout member 14 and the inner peripheral surface of the cap 20 are screwed together. A hole is made in the center of the upper wall of the cap 20, and this hole is closed by a packing 18 stuck to the inner surface of the upper wall of the cap 20. This pack king 18
has approximately the same diameter as the inner diameter of the cap 20, and is formed of, for example, a synthetic resin film or a laminate film of synthetic resin and aluminum foil.

A fixing ring 24 is attached to the upper outer peripheral surface of the holding member 16.
A male thread is formed that can be screwed into the female thread formed on the inner peripheral surface of the holder. The fixing ring 24 is rotatably fitted around the outer periphery of the lower part of the connector body 22, and is prevented from moving downward by engagement between its upper end and the stepped portion of the connector body 22.
By screwing together the fixing ring 24 and the clamping member 16, the lower end of the connector body 22 is brought into pressure contact with the upper end of the cap 20 via the O-ring 25.
2 can be fixed to the cap 20. The connector body 22 includes hollow members 26, which are coaxially connected in sequence.
28, 30, forming the lower part of the connector body 22, and forming a stepped portion that engages the fixing ring 24. are assembled into one piece by screwing them together. The member 26 and the member 28 assembled in this way form a substantially cylindrical hollow part that opens at the lower end, and a needle pipe as a hollow sliding body 34 that can be slid in the vertical direction is slid into this hollow part. , this sliding body 3
A flow path 32 is formed by the hollow portion of 4. Note that an annular chamber 54 is formed in a part of the hollow portion of the member 28 so as to surround the sliding body 34, and this annular chamber 54 is communicated with a liquid feeding port 50 that protrudes outward from the member 28. . The liquid feeding port 50 is connected to a liquid feeding pipe 52, and the liquid feeding pipe 52 is connected to the suction side of a pump (not shown). On the other hand, a hole 36 is provided in the upper side wall of the sliding body 34. This hole 36 is located above the annular chamber 54 when the sliding body 34 is held upward, and communicates with the annular chamber 54 when the sliding body 34 is slid downward. That is, when the sliding body 34 is located upward, the flow path 32 and the annular chamber 54 are blocked by the side wall of the sliding body 34 . Further, the lower end 35 of the sliding body 34 is cut diagonally and is sharp. A pair of O-rings 38 are vertically embedded in the upper inner wall of the hollow part of the member 28 at a predetermined distance apart, and when the sliding body 34 is held upward, the hole 36 is formed between the pair of O-rings 38. It is now located between 38 and 38. The lower end of the shaft 40 is connected to the upper end of the sliding body 34, and the sliding body 34 and the shaft 40 are integrated. The upper end of this shaft 40 is connected to a handle 42. Further, a coil spring 44 externally mounted on the shaft 40 is interposed between the recess at the lower part of the handle 42 and the recess at the upper part of the member 30,
As a result, the sliding body 34 connected to the shaft 40 is urged upward. In addition, a male thread 46 threaded on the upper outer circumferential surface of the member 30 and a female thread 48 threaded on the inner circumferential surface of the handle 42 are formed so as to be screwable together.

The operation of the liquid feeding connector configured in this way will be explained below. First, the fixing ring 24 is screwed onto the holding member 16, and the connector body 22 is attached to the liquid spout 1.
Fixed at 7. At this time, since the sliding body 34 is urged upward by the coil spring 44, the sliding body 34 is housed within the connector main body 22. Next, when the handle 42 is pushed downward, the sliding body 3
4 protrudes from the opening at the lower end of the connector body 22, and the lower end 35 sticks into the packing 18. When the lower end of the handle 42 reaches the upper end of the connector main body 22, the handle 42 is turned to screw the handle 42 into the connector main body 22. At this time, the lower end 35 further descends to break the packing 18 and is immersed in the liquid inside the container 10, and the hole 36 communicates with the annular chamber 54. Since the handle 42 is screwed onto the connector main body 22 and fixed against the biasing force of the coil spring 44, the sliding body 34 will not return upward even if the handle is released. Thereafter, when suction is performed by the pump, the liquid is sent toward the pump via the liquid pouring port 17, the flow path 32, the hole 36, the liquid feeding port 50, and the liquid feeding pipe 52.
Moreover, when stopping liquid feeding, the handle 42 is rotated in the opposite direction to release the screwing between the connector body 22 and the handle 42. As a result, the biasing force of the coil spring 44 acts, and the sliding body 34 is pushed back upwards, so that the flow path 32 and the annular chamber 54 are blocked by the side wall of the sliding body 34, and liquid feeding is stopped.

In this way, in the liquid delivery connector of this embodiment, the connector main body 22 is directly connected to the liquid spout 17 covered by the cap 20, so that the connector body 22 can be connected directly to the liquid spout 17 without having your hands or the like come into contact with the liquid until the connection is completed. The main body 22 can be connected. Furthermore, since the packing 18 is used as a seal for preventing liquid leakage, there is no need to previously attach a separate seal to the liquid spout.

FIG. 2 shows the fixing ring 24 in the embodiment described above.
A partial cross-sectional view is shown in which the clamp 66 is used. A plurality of clamps 66 are provided that are slidable around a fulcrum pin 68 attached to a protrusion on the lower side wall of the connector body 64. This clamp 66
A recess 67 is formed in the lower part of the spout member 14 on the side (inside) facing the spout member 14 . The clamp 66 is fixed to the clamping member 62 by hooking the recess 67 onto a protrusion provided on the outer peripheral surface of the clamping member 62.
Further, on the opposite side (outside) of the side facing the spout member 14 of the clamp 66, a spring ring 70 is externally fitted above the fulcrum 68 with the fulcrum 68 in between, and a clamp ring 72 is fitted below the fulcrum 68. It is fitted externally. This clamp ring 72 is the clamp 66
It is possible to move up and down along the outside of the Also,
A recess 74 is formed inside the clamp ring 72, and a protrusion 69 formed on the outside of the clamp 66 is engaged with the upper end of the recess 74 to prevent the clamp ring 72 from slipping downward and coming off. There is.

In such a liquid feeding connector, when the clamp ring 72 is pulled upward, the clamp 66 swings due to the biasing force of the spring ring 70, and the part above the fulcrum 68 moves inward, and the part below the fulcrum 68 moves away from the outside. As a result, the recess 67 is disengaged from the protrusion of the clamping member 62, and the engagement between the clamp 66 and the clamping member 62 is released. Also, the clamp 66 is held by the clamping member 62.
When engaging with the clamp ring 72, it is sufficient to push the clamp ring 72 downward. In this way, the connector main body 64 can be quickly attached to and detached from the liquid spout 17 by a simple operation of moving the clamp ring 72 up and down.

Note that the liquid delivery connector of the above embodiment was used for a container in which packing attached to a cap with a hole was used as a seal to prevent liquid leakage, but this invention is not limited to this. It can also be used for containers whose liquid spout is sealed, that is, an inner seal is attached.

In addition, the liquid feeding connector of the above-described embodiment uses a coil spring that biases the sliding body upward, a handle, and a screw portion that fixes the handle and the connector body as the operating means for sliding the sliding body in the vertical direction. However, this invention is not limited to this, and the sliding body can also be slid in the vertical direction by screwing the upper outer circumferential surface of the sliding body to the inner wall of the hollow part of the connector main body.

Further, in the above-mentioned embodiment, a pump that sucks the liquid is used for the liquid feeding method, but this invention is not limited to this, and the liquid can also be fed by tilting the container.

[Effects of the invention] According to the liquid feeding connector according to the invention, by sliding the hollow sliding body that forms the liquid flow path downward, the hole provided in the side wall of the sliding body and the liquid feeding passage are connected. At the same time, the lower end of the sliding member protruding from the opening at the lower end of the connector main body can break the leakage prevention seal facing the sliding member.
Therefore, the connector main body can be attached without coming into contact with the liquid, and it is possible to prevent the liquid from adhering to hands or the like. Furthermore, when the connector main body is removed, the sliding body is slid upward by the operating means to shut off the flow path and the liquid feeding path, so it is possible to prevent the liquid from flowing back from the liquid feeding path to the liquid spout. .

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a liquid feeding connector according to an embodiment of the invention, and FIG. 2 is a partial sectional view showing a modification of the fixing means for the connector body. 10... Container, 12... Cardboard box, 14...
Spout member, 16, 62... holding member, 17...
Liquid spout, 18...Packing, 20...Cap, 22, 64...Connector body, 24...Fixing ring, 32...Flow path, 34...Sliding body, 35...
...Lower end, 36...hole, 40...shaft, 42
...Handle, 44...Coil spring, 50...Liquid feeding port, 52...Liquid feeding pipe, 54...Annular chamber, 66...
... Clamp, 68 ... Fulcrum pin, 70 ... Spring ring, 72 ... Clamp ring.

Claims (1)

[Claims for Utility Model Registration] A connector body having a hollow portion communicating with a liquid spout of a container sealed with a liquid leakage prevention seal, and a connector body provided to slide inside the hollow portion and cut diagonally. a hollow sliding body having a flow path with holes in a lower end and a side wall; and an annular body provided at a suitable position in the hollow part, surrounding a part of the sliding body all around, and communicating with a liquid feeding port. a member for fixing the connector main body to the liquid spout so that a lower end of the sliding body faces the seal; a member for sliding the sliding body to communicate the hole with the annular chamber; , an operating means for breaking the seal by a lower end of the sliding body, the lower end of the sliding body being located near the liquid spout when the sliding body is retracted into the hollow part. Also, a liquid feeding connector characterized in that it is smoothly continuous with the inner wall of the hollow portion.