JP3195221U - One connector type base and direct pressure type two connector automatic switching base - Google Patents

Abstract

A one-connector base and a direct-pressure two-connector automatic switching base that can be filled with air by simply operating with one hand. A main body, a chuck, and a valve plug are included. The chuck has chuck holes 21 and 31 and is disposed in one end of the valve plug and is disposed in the valve hole 11 of the main body together with the valve plug. The valve stopper is formed with a plurality of nail claws 44 and 45 arranged annularly at a predetermined interval at one or both ends, and an arcuate portion is formed on the outer surface of each nail. At least one flow path is formed inside the valve plug, communicates with the chuck hole, and an air supply hole 12 connected to the atmospheric pressure source is provided in the main body. The valve plug is capable of limited reciprocation between the first position and the second position in the body. With the above structure, the valve to be charged is inserted into the chuck by operating with one hand, the valve plug is moved to the limit position, the air supply hole is communicated with the flow path and the chuck hole inside the valve plug, The nail is pressed and guided to the arcuate part, and air is introduced into the target valve. [Selection] Figure 3

Description

  The present invention relates to a single-use or dual-use base, and more specifically, to a technical field in which air can be directly supplied by simply inserting a valve to be charged into a chuck with one hand, thereby supplying air. This greatly improves the operability and convenience of the dual purpose cap.

  Conventional dual-purpose caps are as disclosed in prior applications such as Taiwan application Nos. 095107665 and 097203517, but these have the following problems.

  1. In the above-mentioned prior application, when supplying air, hold the main body with one hand and insert the valve to be charged into one of the chucks, and then push the lever with the other hand to lower the internal cylinder. Unless the chuck is restrained by sandwiching the charging target valve, air cannot be introduced, and such a method of operating with both hands is inconvenient and takes time and labor.

  2. In the above-mentioned prior application, the chuck is restrained by sandwiching the valve to be charged by lowering the cylinder and deforming the chuck in the axial direction, and indirectly deforming the chuck in the radial direction. However, since the amount of deformation in the radial direction of the chuck is limited, the force of the chuck for restraining the valve to be charged is limited, and there is a problem that air easily leaks when air is introduced.

  3. In the above-mentioned prior application, there is a problem that the manufacturing cost and the assembling cost cannot be reduced because the overall structure is too complicated.

  In view of the above, based on the experience of manufacturing, developing, and designing related products for many years, the creator can obtain a device that can be practically used through detailed design and careful evaluation to solve the above problems. It was.

Taiwan application No. 095107665 Taiwan application No. 097203517

That is, according to the base according to the present invention, air can be introduced by operating with one hand. This is the main purpose of the present invention.
In addition, according to the base according to the present invention, by providing two types of chucks, not only can air be put in by operating with one hand, but also it can be freely selected according to the type of valve to be charged. can do. This is the next purpose of the present invention.

  A direct pressure type two-connector automatic switching base according to an example of the present invention includes at least a main body, an annular first chuck, an annular second chuck, and a valve plug, which are configured as follows.

  The main body has a penetrating valve hole, and an air supply hole is provided between both ends of the valve hole.

  The annular first chuck has a first chuck hole for inserting the first charge target valve.

  The annular second chuck has a second chuck hole for inserting a second charge target valve.

  The valve plug can be restricted in the axial direction between the first position and the second position along the valve hole, and the valve plug is provided with a plurality of first nail claws and a plurality of second nail claws. The first chuck is arranged in an annular shape at a predetermined interval, and is arranged coaxially with the valve hole and can shrink (converge) in the radial direction for inserting and assembling the first chuck coaxially. The first converging hole is formed, while the second chucking claws are annularly arranged at a predetermined interval, so that the second chuck is arranged coaxially with the valve hole and can be radially contracted. A second converging hole is formed for assembly, and when the first charge target valve is inserted into the first chuck, the valve plug is moved to the first position in conjunction with the momentum, The second nail is opened by the valve hole and the first nail is compressed. The first chuck is automatically and firmly held in the radial direction by the first converging hole, and the air supply hole and the first chuck hole communicate with each other, whereby air is introduced into the first charge target valve. On the other hand, when the second charging target valve is inserted into the second chuck, when the valve plug is moved to the second position in conjunction with the momentum, the valve hole causes the first When the nail is released and the second nail is pressed, the second chuck is automatically firmly clamped in the radial direction by the second nail, and the air supply hole and the second chuck hole are In communication, this allows air to be introduced into the second charge target valve.

  A connector-type base according to another example of the present invention includes a main body, an annular first chuck, and a valve plug, which are configured as follows.

  The main body has a penetrating valve hole, and an air supply hole is provided between both ends of the valve hole.

  The annular first chuck is disposed in the valve plug and has a first chuck hole for inserting a charge target valve.

  The valve plug is disposed in the main body, and is capable of limited reciprocating movement in the axial direction between the first position and the second position along the valve hole of the main body, and the valve plug is at one end. A plurality of nail claws are provided, a closed pressing portion is formed at the other end, a flow path is formed inside the valve plug and communicates with the outer peripheral surface, and the nail claws are arranged in an annular shape alternately with the converging grooves. As a result, a converging hole for coaxially inserting and assembling the first chuck is formed, which is arranged coaxially with the valve hole and can be contracted in the radial direction, and radially formed on the outer surface of each nail. An enlarged arcuate portion is formed, and when the first charge target valve is inserted into the first chuck, when the valve plug is moved to the first position in conjunction with the momentum, the pressing A portion protrudes outside the valve hole, and the nail claws are pressed by the valve hole, Guided to the arcuate portion of the claw, the first chuck is automatically and firmly held in the radial direction by the convergence hole, and the air supply hole and the flow path from the inside of the valve plug to the outer peripheral surface and the first The chuck holes communicate with each other at the same time, so that air can be introduced into the charge target valve.

  Therefore, the present invention has at least the following inventive step.

  1. According to the present invention, when air is introduced, it can be easily performed by operating the main body with one hand. Such a one-handed operation method is much simpler than the conventional two-handed operation, and has the effect of improving the effect of reliably reducing time and labor.

  2. According to the present invention, the charging target valve is firmly restrained by the jaws pressing the chuck “directly” and deforming it in the radial direction. Such a structural relationship can reduce air leakage at the time of introducing air to the minimum.

  3. According to the present invention, the four members of the main body, the first chuck, the second chuck, and the valve plug may be assembled. Such an overall structure is much simpler than the conventional one.

It is a figure which shows the assembly external appearance when the 1st charge object valve | bulb in this invention is inserted. It is a figure which shows the assembly external appearance when the 1st charge object valve | bulb in this invention is inserted. It is a figure which shows the assembly cross section of FIG. It is a figure which shows the assembly cross section when the 2nd charge object valve | bulb in this invention is inserted. It is a disassembled perspective view of 2nd embodiment which concerns on this invention. It is an assembly appearance perspective view of FIG. It is a figure which shows the use condition of 2nd embodiment which concerns on this invention. It is a figure which shows the use condition of 2nd embodiment which concerns on this invention. It is a figure which shows another use condition of 2nd embodiment which concerns on this invention. It is a figure which shows another use condition of 2nd embodiment which concerns on this invention. It is a disassembled perspective view of 3rd embodiment which concerns on this invention.

  Please refer to FIGS. The direct pressure type two-connector automatic switching base according to the present embodiment includes at least a main body 10, an annular first chuck 20, an annular second chuck 30, and a valve plug 40, which are configured as follows. Including.

  The main body 10 has valve holes 11 penetrating both upper and lower ends, and an air supply hole 12 is provided between both ends of the valve hole 11, and an air pressure source is supplied to the valve hole 11 through the air supply hole 12. In the valve hole 11, a first locking recess 13 is formed on the wall surface of the lower end edge, and a second locking recess 14 is formed on the wall surface of the upper end edge of the valve hole 11.

  The annular first chuck 20 has a first chuck hole 21 into which the first charge target valve 91 is inserted.

  The annular second chuck 30 has a first chuck hole 31 into which the second charging target valve 92 is inserted.

  The valve plug 40 is slidably disposed coaxially with the valve hole 11, and the length of the valve plug 40 is longer than the valve hole 11 so that both ends of the valve plug 40 protrude from the valve hole 11. In the valve plug 40, a first passage 411 and a second passage 412 that do not communicate with each other within the range of the valve hole 11 are recessed so that the second passage 412 is located above the first passage 411. . On the outer periphery of the valve plug 40, a first seal packing 421 is assembled below the first passage 411, and a second seal packing 422 is assembled above the second passage 412, and the first passage 411 and the second passage The third seal packing 423 is assembled between the first seal packing 421, the second seal packing 422, the third seal packing 423, and the valve hole 11. The airtight effect of the second passage 412 is maintained. Further, on the outer periphery of the valve stopper 40, a first locking projection 431 that engages with the first locking recess 13 and a second locking projection 432 that engages with the second locking recess 14 are projected. The When the valve plug 40 moves axially along the valve hole 11 to the first position, the first locking projection 431 engages with the first locking recess 13 and the second locking projection 432 is the second. The first passage 411 communicates with the air supply hole 12, and the top end of the valve plug 40 can be located at a position further protruding from the valve hole 11. This is used for pressing by the user for forcibly releasing the engagement with the one locking recess 13. On the other hand, when the valve plug 40 moves axially along the valve hole 11 to the second position, the second locking projection 432 engages with the second locking recess 14 and the first locking projection 431 The second passage 412 communicates with the air supply hole 12, and the bottom end of the valve plug 40 can be located at a position further protruding from the valve hole 11. It is used for the push-up by the user for forcibly releasing the engagement between 432 and the second locking recess 14. In this way, the valve plug 40 can be limitedly moved between the first position and the second position. The valve stopper 40 is provided with a plurality of first nail claws 44 in the axial direction at the bottom and a plurality of second nail claws 45 in the axial direction at the top. By arranging the first nail 44 in an annular manner alternately with the first converging groove 46, the first nail 44 is arranged coaxially with the valve hole 11 inside the first nail 44 and can shrink (converge) in the radial direction. A hole 47 is formed, and a corresponding arcuate part is formed on the outer side of the first nail 44 to compress and move the valve hole 11 in the radial direction. A first locking convex part 431 projects from the arcuate part. Is done. The first converging hole 47 is for inserting the first chuck 20 coaxially and assembling it, and makes the first chuck hole 21 communicate with the first passage 411. On the other hand, the second nail 45 is arranged in an annular manner alternately with the second converging groove 48, so that the second nail 45 is arranged coaxially with the valve hole 11 inside the second nail 45 and can shrink (converge) in the radial direction. Two converging holes 49 are formed, corresponding to the outside of the second nail 45, a bow arc part for pressing and moving the valve hole 11 in the radial direction is formed, and the second locking convex part 432 is formed in the cone shaft part. Projected. The second converging hole 49 is used for assembling the second chuck 30 coaxially, and makes the second chuck hole 31 communicate with the second passage 412.

  Please refer to FIG. 2 and FIG. When the user operates the main body 10 with one hand and inserts the first charging target valve 91 into the first chuck hole 21 of the first chuck 20, the valve plug 40 is moved to the first position in conjunction with the momentum. When moved, the first locking projection 431 and the first locking recess 13 are engaged to position the valve plug 40 in the valve hole 11. At this time, the outer periphery of the second nail 45 is opened by the valve hole 11, the arcuate portion formed on the outer periphery of the first nail 44 is pressed, and the first chuck 20 is automatically made by the first convergence hole 47. The first chuck hole 21 directly restrains the first charging target valve 91 in the radial direction, and then the pressure source is supplied through the air supply hole 12. In this way, air can be introduced into the first charging target valve 91. In addition, after the air has been put in, the top end of the valve plug 40 is pushed down to forcibly disengage the first locking projection 431 from the first locking recess 13, and the first nail 44 through the valve hole 11. The arcuate portion formed on the outer periphery of the first is released, and the restrained state between the first chuck 20 and the first charge target valve 91 is released.

  Please refer to FIG. When the user operates the main body 10 with one hand and inserts the second charging target valve 92 into the second chuck hole 31 of the second chuck 30, the valve plug 40 is moved to the second position in conjunction with the momentum. When moved, the second locking projection 432 and the second locking recess 14 are engaged to position the valve plug 40 in the valve hole 11. At this time, the outer periphery of the first nail 44 is opened by the valve hole 11, the arcuate portion formed on the outer periphery of the second nail 45 is pressed, and the second chuck 30 is automatically pressed by the second nail 45. The second chuck hole 31 directly restrains the second charging target valve 92 in the radial direction, and then the air pressure source is supplied through the air supply hole 12. In this way, air can be introduced into the second charging target valve 92. After the air has been put in, the second locking projection 432 is forcibly detached from the second locking recess 14 by pushing up the bottom end of the valve plug 40, and the second nail 45 is pushed by the valve hole 11. The arcuate portion formed on the outer periphery is released, and the restrained state between the second chuck 30 and the second charge target valve 92 is released.

  In order to make the entire structure more stable and strong in the present invention, a first stop portion 441 can be provided at the bottom end of the first nail 44. The first retaining portion 441 has an outer edge located outside the valve hole 11 and a diameter larger than that of the valve hole 11, and an inner edge abutting against the bottom end of the first chuck 20. On the other hand, a second stop portion 451 is provided at the top end of the second nail 45. The second retaining portion 451 has an outer edge located outside the valve hole 11 and has a diameter larger than that of the valve hole 11, and an inner edge thereof abuts on the top end of the second chuck 30. As a result, the valve stopper 40 is more reliably prevented from escaping from the valve hole 11, the first chuck 20 from the first nail 44, and the second chuck 30 from the second nail 45, respectively. Since the portion 441 and the second stopping portion 451 sandwich the charge target valves 91 and 92, it is possible to prevent the charge target valve from being displaced in the middle of entering air.

  From the above description, it can be seen that the present invention has at least the following inventive step.

  According to the present invention, the main body can be operated with one hand, the valve to be charged is inserted into one of the chucks, and the valve plug can be moved to a predetermined position by that force. The claw and chuck are actuated to automatically pinch and restrain the charging target valve. Such a one-handed operation method is much simpler than a conventional two-handed operation.

  2. According to the present invention, due to the coaxial interlocking relationship between the valve hole and the claw, the chuck can be “directly and sufficiently” deformed in the radial direction and can be restrained by sandwiching the valve to be charged. The force that restrains the charging target valve by the air increases, and when air is introduced, the occurrence of air leakage is minimized, and the nail can hold the charging target valve. It is possible to prevent slipping during the insertion.

  Please refer to FIGS. The one-connector type cap 50 according to the second embodiment of the present invention includes a main body 51, a valve plug 52, and a first chuck 55, which are configured as follows.

  The main body 51 has a valve hole 511 penetrating in the axial direction, a pipe head 515 is formed on the outer peripheral surface thereof, and the pipe head 515 and the valve hole 511 are communicated with each other through a vent hole 514. The main body 515 has an annular convex edge 512 contracted in the radial direction at the top end, and a male screw 513 for screwing and fixing the retaining ring 57 to the outer peripheral surface of the bottom end. The retaining ring 57 has a through hole 571 penetrating in the axial direction, and a female screw 572 is formed on the inner peripheral surface of the through hole 571. Further, an annular retaining edge 573 contracted in the radial direction is formed at the bottom end of the retaining ring 57.

  The valve plug 52 is formed with the top end closed, a shoulder portion 522 is formed on the outer peripheral surface of the top end, a small-diameter pressing portion 521 is formed above the shoulder portion 522, and the bottom end is coupled to the pressure ring member 56. Two annular grooves 523 and 526 are formed on the outer peripheral surface of the valve plug at a predetermined distance, and a first leakage ring 53 and a second leakage ring 54 are respectively installed in the annular grooves 523 and 526. A recessed passage 524 is formed between the annular grooves 523 and 526, and a gas inlet 525 that penetrates into the inside in a radial direction is provided in a part of the passage 524. The inside of the valve plug 52 extends to the bottom end to form a joint portion 528. The joint portion 528 is a flow path that penetrates substantially to the bottom end and communicates with the air mouth 525. A male screw 527 is formed on the outer peripheral surface and is screwed into and fixed to the pressure ring member 56. The pressure ring member 56 has a converging hole 561 penetrating in the axial direction, and a female screw 562 is formed on the inner peripheral surface of the converging hole 561. A plurality of pinching claws 563 are formed at the bottom end of the pressure ring member 56, and the pinching claws 563 are arranged annularly alternately with the converging grooves 564, so that they are arranged coaxially with the valve hole 511 and contract (radiate) in the radial direction. A converging hole 561 is formed. A hook portion 5631 extending in the radial direction is formed at the bottom end of each nail 563, and an arcuate portion 565 expanded in the radial direction is formed on the outer surface of each nail 563. Each nail 563 receives an external force and contracts in the radial direction, and when the external force is released, it automatically opens and returns slightly.

  The first chuck 55 has a first chuck hole 551 penetrating in the axial direction. An annular tapered edge 552 contracted in the radial direction is formed on the inner peripheral surface of the first chuck hole 551. The first chuck 55 is inserted coaxially into the converging hole 561 and is received jointly by the hook portion 5631 at the bottom end of each nail 563.

  Next, please refer to FIG. 7 and FIG. In the single-use base 50 according to this embodiment, a pressure source (not shown) is connected to the tube head 515 in advance when air is introduced. When the first charging target valve 91 is inserted into the first chuck hole 551 of the first chuck 55, the valve stopper 52 can be pushed upward to move upward, and the pressing portion 521 protrudes outside the valve hole 511. The annular shoulder portion 522 abuts on the annular convex edge 512 (first position) and cannot move further upward. During the upward movement, the arcuate portion 565 of each nail 563 is pushed by the annular retaining edge 573 at the bottom end of the valve hole 511 and is guided to the arcuate portion 565 of each nail 563, so as to converge. The first chuck 55 is automatically and firmly clamped in the radial direction by 561, and the first chuck 55 is pressed and the first charge target valve 91 is firmly clamped. Further, the air supply holes 514 are simultaneously communicated with the passage 524, the joint portion 528, and the first chuck hole 551 so that air can be introduced into the first charge target valve 91. Here, the first charging target valve 91 is an American valve.

  Next, please refer to FIG. 9 and FIG. A single-use base applicable to the second charge target valve 92 is shown. The second charging target valve 92 is a French valve, and the components and shapes thereof are the same except that the shape of the joint portion 528A of the valve stopper 52A and the shape of the second chuck 55A are slightly different. The junction 528A of the valve stopper 52A is formed with a larger flow path to allow insertion of a French valve. Further, the second chuck 55A has an annular convex edge 552A formed only on the inner peripheral surface, and can firmly hold the corresponding position of the French-style valve. However, the usage method and the operating principle are the same. Is omitted.

  Then, please refer to FIG. FIG. 11 shows another embodiment of the present invention. A hard claw 566 is assembled on the outside of the claw 563 in accordance with the number of the claw 563, and the claw 563 is used as the hard claw 566 in use. By being pressed and pressed inwardly, the converging hole 561 and the first chuck 55 are pressed, thereby enhancing the clamping force to the first charging target valve 91 and the second charging target valve 92.

  As described above, the present invention is novel in the overall structural arrangement, has the effect of enhancement as described above, and is certainly an advanced device based on the technical philosophy. do. In addition, the above description is only an example of suitable embodiment of this invention, and does not limit the implementation range. That is, any equivalent changes and modifications made to the scope of the claims of the present invention are included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Main body 11 Valve hole 12 Air supply hole 13 1st latching recessed part 14 2nd latching recessed part 20 1st chuck 21 1st chuck hole 30 2nd chuck 31 2nd chuck hole 40 Valve stopper 411 1st channel | path 412 2nd channel | path 421 1st seal packing 422 2nd seal packing 423 3rd seal packing 431 1st latching convex part 432 2nd latching convex part 44 1st nail | claw nail | claw 441 1st latching part 45 2nd nail | claw nail | claw 451 2nd latching | locking part 46 first converging groove 47 first converging hole 48 second converging groove 49 second converging hole 50 base 51 main body 511 valve hole 512 convex edge 513 male screw 514 air hole 515 pipe head 516 pipe plug 52 valve plug 521 pressing part 522 annular Shoulder 523 Annular groove 524 Passage 525 Vent 526 Annular groove 527 Male thread 528 Joint 53 First leakage ring 54 Second leakage ring 5 5 First Chuck 551 First Chuck Hole 552 Annular Tapered Edge 55A Second Chuck 551A Second Chuck Hole 552A Annular Convex Edge 56 Pressure Ring Member 561 Convergence Hole 562 Female Screw 563 Nail Claw Part 5631 Hook Part 564 Convergence Groove 565 Arch Arc Part 566 Hard jaws 57 Stop ring 571 Through hole 572 Female thread 573 Annular stop edge 91 First charge target valve 92 Second charge target valve

Claims (10)

A direct pressure type two-connector automatic switching base including a main body, a first chuck, a second chuck, and a valve plug,
The main body has a valve hole that penetrates, and an air supply hole is provided between both ends of the valve hole,
The first chuck has a first chuck hole,
The second chuck has a second chuck hole,
The valve plug can be restricted in the axial direction between the first position and the second position along the valve hole,
The valve plug is provided with a plurality of first pinching claws and a plurality of second pinching claws, and the first pinching claws are arranged alternately with the first converging grooves so as to be arranged coaxially with the valve hole and A first converging hole that can be contracted in a radial direction for inserting and assembling the first chuck coaxially is formed, while the second pinching claws are alternately arranged with a second converging groove, thereby A second converging hole is formed for inserting and assembling the second chuck coaxially disposed coaxially with the hole and capable of contracting in a radial direction;
When the valve plug is located at the first position, the second pinch is opened by the valve hole and the first pinch is compressed, and the first chuck is automatically pushed by the first converging hole. Firmly sandwiched in the radial direction, and the air supply hole and the first chuck hole are communicated,
When the valve plug is located at the second position, the first nail is opened by the valve hole and the second nail is compressed, and the second chuck automatically moves the second chuck. A direct pressure type two-connector automatic switching base in which the air supply hole and the second chuck hole are communicated firmly with each other in the radial direction. The direct pressure type two-connector automatic switching base according to claim 1,
The main body has a first locking recess formed in the wall surface of one edge of the valve hole, and a second locking recess formed in the wall surface of the other edge of the valve hole,
A first locking projection that engages with the first locking recess and a second locking projection that engages with the second locking recess project from the outer periphery of the valve stopper,
When the valve stopper has moved to the first position, the first locking projection and the first locking recess engage, and the second locking projection separates from the second locking recess,
When the valve stopper moves to the second position, the second locking projection and the second locking recess engage, and the first locking projection separates from the first locking recess. Pressure type two-connector automatic switching base. The direct pressure type two-connector automatic switching base according to claim 2,
The valve plug is longer in length than the valve hole so that both ends of the valve plug protrude from the valve hole.
When the valve plug has moved to the first position, one end of the valve plug is located at a position further protruding from the valve hole, and the engagement between the first locking projection and the first locking recess is performed. Served to release,
When the valve plug moves to the second position, the other end of the valve plug is located at a position further protruding from the valve hole, and the second locking projection and the second locking recess are engaged. Direct pressure type two-connector automatic switching base provided to release The direct pressure type two-connector automatic switching base according to claim 2,
The plurality of first nail claws are provided in an annular shape alternately with the first converging grooves, so that the first converging holes are formed inside the first nail claws, while the outside of the first nail claw A cone shaft portion for compressing and moving the valve hole in the radial direction is formed correspondingly, and the first locking projection protrudes from the cone shaft portion,
The plurality of second pinching claws are laid in an annular shape alternately with the second converging grooves, whereby the second converging holes are formed inside the second pinching claws, while the outside of the second pinching claws A direct pressure type two-connector automatic switching base in which a conical shaft portion for compressing and moving the valve hole in the radial direction is formed correspondingly, and the second locking projection protrudes from the conical shaft portion. The direct pressure type two-connector automatic switching base according to any one of claims 1 to 4,
A first stop portion is provided at an outer end of the first nail, the outer edge of the first stop portion is located outside the valve hole, and the diameter is larger than the valve hole. The inner edge of the stop portion contacts the bottom end of the first chuck,
A second retaining portion is provided at an outer end of the second nail, an outer edge of the second retaining portion is located outside the valve hole, and a diameter is larger than the valve hole; A direct pressure type two-connector automatic switching base in which the inner edge of the stop portion contacts the top end of the second chuck. A connector-type base including a main body, an annular first chuck, and a valve plug,
The main body has a valve hole that penetrates, and an air supply hole is provided between both ends of the valve hole,
The annular first chuck is disposed in the valve plug, and has a first chuck hole for inserting a valve to be charged.
The valve plug is disposed in the main body, and can perform limited reciprocating movement in the axial direction between the first position and the second position along the valve hole of the main body,
The valve plug is provided with a plurality of nail claws at one end, a closed pressing portion is formed at the other end, a flow path is formed inside the valve plug, and communicates with the outer peripheral surface. Is formed in an annular shape alternately with the converging groove, thereby forming a converging hole that is arranged coaxially with the valve hole and can be contracted in the radial direction. The one-connector type cap according to claim 6,
A one-connector type base in which a hook portion extending in a radial direction is formed at a bottom end of each nail, and the first chuck is jointly received by a hook portion at the bottom end of each nail. The one-connector type cap according to claim 6,
A one-piece connector base in which an arcuate portion expanding in the radial direction is formed on the outer surface of each nail. The one-connector type cap according to claim 6,
Two annular grooves are formed at a predetermined distance on the outer peripheral surface of the valve plug, and a first sealing ring and a second sealing ring are respectively brought into contact with the annular grooves, and are recessed between the annular grooves. A one-piece connector base in which a passage is formed, a vent is provided in the passage, communicates with an internal flow path, and the passage communicates with a vent hole when the valve plug moves to a predetermined position. The one-connector type cap according to claim 6,
A one-connector type base in which a hard nail is assembled outside the nail.

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