JP2014098472A - Tube connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tube connector that does not require insertion of a core pipe into the inside of a tip of a tube when connecting the tube.SOLUTION: The tube connector comprises a connector body having a connection hole for connecting a tube, a seal ring which is attached to an inner peripheral surface of the connection hole of the connector body and seals an outer peripheral surface of the tube inserted in the connection hole, and engaging means for engaging the outer peripheral surface of the tube. A core pipe, which is provided in the connection hole of the connector body and fits inside of the tip of the tube when inserted into the connection hole of the tube, is fixed to the connector body.

Description

  The present invention relates to a tube connector for connecting a tube for introducing or discharging a fluid.

  In the semiconductor device manufacturing process, a plurality of regions are partitioned by dividing lines called streets arranged in a lattice pattern on the surface of a substantially wafer-shaped semiconductor wafer, and devices such as ICs, LSIs, etc. are partitioned in the partitioned regions. Form. Individual semiconductor devices are manufactured by dicing the semiconductor wafer along the streets with a cutting device. The cutting apparatus includes a holding unit having a holding table for sucking and holding a workpiece such as a wafer, a cutting unit that performs cutting while supplying cutting water to the workpiece held by the holding unit, and a holding unit. And a cleaning means for supplying a cleaning water to the workpiece cut by the cutting means and cleaning the workpiece. In such a cutting apparatus, a holding means having a holding table for sucking and holding a workpiece is connected to a tube communicating with a suction source via a tube connector, and the cutting means and the cleaning means receive cutting water and cleaning water. A tube communicating with a pure water supply source to be supplied is connected via a tube connector.

  In the tube connector, the core pipe is disposed inside the distal end portion of the tube so that the distal end of the tube is not crushed and fluid such as water or air does not leak when the tube is inserted into the connection portion of the connector body. (For example, patent document 1).

JP 2004-204883 A

  Thus, the tube connector described in the above-mentioned Patent Document 1 is troublesome because the core pipe must be inserted and disposed inside the distal end of the tube when connecting the tubes. There is a problem that the insertion may be forgotten.

  The present invention has been made in view of the above-described facts, and a main technical problem thereof is to provide a tube connector that does not require a core pipe to be inserted inside the distal end portion of the tube when connecting the tubes.

In order to solve the above-mentioned main technical problem, according to the present invention, a connector main body having a connection hole for connecting a tube, and a tube mounted on the inner peripheral surface of the connection hole of the connector main body and inserted into the connection hole A sealing ring for sealing the outer peripheral surface of the tube and a locking means for locking the outer peripheral surface of the tube, and a tube connector comprising:
A core pipe, which is disposed in the connection hole of the connector body and is inserted into the distal end of the tube by being inserted into the connection hole of the tube, is fixed to the connector body.
A tube connector is provided.

  In the tube connector according to the present invention, the core pipe that is disposed in the connection hole of the connector body and is inserted into the distal end portion of the tube by being inserted into the connection hole of the tube is fixed to the connector body. A tube can be connected only by inserting a tube and inserting the front-end | tip part of a tube in the tube holding part of a core pipe. Therefore, the operation of inserting the core pipe into the tube is not necessary, and the problem of forgetting to attach the core pipe can be solved.

1 is a cross-sectional view of a tube connector constructed in accordance with the present invention. Sectional drawing which shows the state which connected the tube to the tube connector shown in FIG.

  Hereinafter, a preferred embodiment of a tube connector configured according to the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 shows a cross-sectional view of a tube connector constructed in accordance with the present invention.
The tube connector 2 in the illustrated embodiment includes a connector main body 21 for connecting the tube 3. In the illustrated embodiment, the connector main body 21 is formed in an elbow shape, and connection holes 211 and 212 are formed at both ends thereof. The connection holes 211 and 212 are communicated with each other. A seal ring 22 that seals the outer peripheral surface in a state where the tube 3 is inserted is attached to the inner peripheral surface of one connection hole 211 of the connector main body 21. Further, locking means 23 for locking the outer peripheral surface of the tube 3 in a state where the tube 3 is inserted is disposed on the inner peripheral surface of the one connection hole 211 of the connector main body 21. The locking means 23 includes a claw member 231 that engages with the outer peripheral surface of the tube 3 and a claw presser member 232 that holds the claw member 231 on the inner peripheral surface of the connection hole 211. Furthermore, a release bush 24 for releasing the engagement of the claw member 231 with the outer peripheral surface of the tube 3 is disposed at the end of the connection hole 211 so as to be slidable in the axial direction. Further, a retaining member 25 is press-fitted into the end of the connection hole 211 in order to prevent the release bush 24 from coming off.
The structure of the connector main body 21, the seal ring 22, the locking means 23 including the claw member 231 and the claw pressing member 232, the release bush 24, and the retaining member 25 is a conventionally known structure. The detailed explanation is omitted.

  1, the tube connector 2 in the illustrated embodiment is disposed in the connection hole 211 of the connector body 21 and is inserted into the connection hole 211 of the tube 3 so as to be inside the distal end portion of the tube 3. A core pipe 26 to be inserted is provided. The core pipe 26 includes a tube holding portion 261 that is fitted inside the distal end portion of the tube 3, and an annular mounting flange portion 262 that is formed radially at one end of the tube holding portion 261. Is fixed to the connector body 21. More specifically, the core pipe 26 in the illustrated embodiment is formed of a metal material such as stainless steel, and when the connector main body 21 is cast, the outer periphery of the core pipe 26 is attached by a casting method. In the core pipe 26 fixed to the connector main body 21 in this way, the tube holding portion 261 is arranged toward the opening of the connection hole 211.

  The tube connector 2 in the illustrated embodiment is configured as described above. To connect the tube 3, the tube 3 is inserted into the connection hole 211 of the connector main body 21, and the tip of the tube 3 as shown in FIG. The part is fitted into the tube holding part 261 of the core pipe 26. By fitting the distal end portion of the tube 3 into the tube holding portion 261 of the core pipe 26 in this way, the outer peripheral surface of the tube 3 is in close contact with the inner peripheral surface of the seal ring 22, and the claw member 231 is attached to the outer peripheral surface of the tube 3. Engage. When the claw member 231 is engaged with the outer peripheral surface of the tube 3, the tube 3 is prevented from coming off. When the tube 3 is pulled out from the connector body 21, the tube 3 can be easily removed by sliding the release bush 24 toward the claw member 231 to release the engagement between the claw member 231 and the outer peripheral surface of the tube 3. Can be extracted.

As described above, in the tube connector 2 in the illustrated embodiment, the core pipe 26 that fits inside the distal end portion of the tube 3 by being inserted into the connection hole 211 of the tube 3 in the connection hole 211 of the connector body 21 is fixed to the connector body 21. Therefore, the tube 3 can be connected by simply inserting the tube 3 into the connection hole 211 of the connector main body 21 and fitting the tip of the tube 3 into the tube holding portion 261 of the core pipe 26. Therefore, the operation of inserting the core pipe into the tube 3 becomes unnecessary, and the problem of forgetting to attach the core pipe can be solved.
In addition, although the tube connector provided with the elbow-type connector main body was demonstrated in embodiment mentioned above, this invention may be applied to the tube connector provided with the linear connector main body.

2: Tube connector 21: Connector body 211, 212: Connection hole 22: Seal ring 23: Locking means 231: Claw member 232: Claw holding member 24: Release bush 25: Retaining member 26: Core pipe 3: Tube

Claims (1)

A connector main body having a connection hole for connecting a tube, a seal ring for sealing the outer peripheral surface of the tube attached to the inner peripheral surface of the connection hole of the connector main body and inserted in the connection hole, and an outer peripheral surface of the tube. A tube connector having locking means for stopping,
A core pipe, which is disposed in the connection hole of the connector body and is inserted into the distal end of the tube by being inserted into the connection hole of the tube, is fixed to the connector body.
A tube connector characterized by that.

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