TWI632317B - Inflatable joint - Google Patents

Abstract

An inflation joint connects a gas source and a valve and includes: an inflatable housing, a holding member, and a control mechanism. The inflatable housing has an air passage and a pressing wall, the holding member being located in an assembly chamber of the inflatable housing and having a holding hole through which the valve passes. The control mechanism has a control valve installed in the assembly chamber, an elastic member that pushes the control valve toward the pressing wall to collectively clamp the holding member, and a pivotable mounting on the inflatable housing A control handle that is coupled to the control valve. The cooperation of the foregoing structure can reset the holding member by simple and labor-saving operation to facilitate the insertion of the valve, and the holding member can automatically clamp and fix the valve when the external force is released.

Description

Inflatable joint

This invention relates to a joint, and more particularly to an inflatable joint for connecting a gas source to a valve.

Referring to Figures 1, 2, and 3, there is a patent of US 5,762,095, which discloses an inflation joint 1 for connecting a gas source 11 and a valve 12, the inflation joint 1 comprising a base 13, the base 13 has a cylindrical base portion 131, two flange portions 132 projecting upwardly from the base portion 131 and spaced apart, a channel 133 interposed between the flange portions 132, and a projection from the base portion 131 And a connecting pipe portion 134 to which the gas source 11 is mounted, the base portion 131 having a chamber 135 axially communicating with the channel 133. The inflation joint 1 further includes a poppet rod 15 pivotally mounted in the channel 133 of the base 13 by a latch 14, a clamping device 16, and a mounting device 16 An end cap 17 within the chamber 135.

The head lever 15 has a control head 151 through which the pin 14 passes, and a handle portion 152 protruding from the channel 133. The control head 151 has a first abutment surface 153, and a first The second abutting surface 154 of the vertical surface 153 of the abutting surface 153 has a vertical distance from the center of the first abutting surface 153 to the center of the plug 14 that is smaller than a vertical distance from the second abutting surface 154 to the center. The clamping device 16 has a plunger 161 abutting against the control head 151 of the head lever 15, a clamping ring 162 spaced apart from the plunger 161 and being compressed and deformed, and a plunger supported on the plunger 161 and the interlocking ring 163 between the clamp rings 162.

When the inflation joint 1 is in a preparatory position as shown in FIG. 2, the first abutment surface 153 of the head lever 15 abuts against the clamping device 16, and at this time, the valve 12 can be sequentially worn. The end cap 17, the clamp ring 162 and the interlocking ring 163 are passed through. When the user rotates the poppet lever 15 with the latch 14 as a fulcrum and causes the second abutting surface 154 to abut against the top surface of the plunger 161, due to the second abutting surface 154 and the center of the latch 14 The vertical distance is greater than the vertical distance between the first abutting surface 153 and the center of the latch 14 . Therefore, the plunger 161 is pressed inwardly by the interlocking ring 163 against the clamping ring 162 to clamp the valve 12 . The inflation joint 1 will then be switched to an inflated position as shown in Figure 3 and can be inflated. After the inflation is completed, the head lever 15 is reversely pulled, and the inflation joint 1 can be separated from the valve valve 12.

Although the foregoing invention patent can achieve the intended purpose of creation, the inflation joint 1 not only has a large number of components, but also needs to drive the head lever 15 to pivot during the switching position, due to the first abutment surface 153 of the bumper rod 15 and The distance between the second abutting surface 154 and the center of the latch 14 is different. Therefore, when the position is changed, the clamping ring 162 is actually pressed and becomes short and short. This operation mode not only requires a large resistance during operation, but also requires a hand. The base 13 is supported and the head wheel 15 is pulled by one hand, so that the aforementioned invention patent has large resistance and is not convenient in operation.

It is an object of the present invention to provide an inflatable joint that overcomes at least one of the disadvantages of the prior art.

The inflation joint of the present invention is used to connect a gas source and a valve, and includes: an inflatable housing, a holding member, and a control mechanism. The inflatable housing has a housing portion for mounting the gas source, an air passage defined by the housing portion, and a pressing wall having an assembly chamber, the pressing wall having a The valve extends into the assembly hole of the assembly chamber. The holder is located within the assembly chamber of the inflatable housing and has a holding aperture for the valve to pass through. The control mechanism has a movable control valve mounted in the assembly chamber of the inflatable housing, an elastic member that pushes the control valve toward the pressing wall and collectively clamps the holding member, and an elastic member The pivoting member is mounted on the housing portion and overcomes the elastic force of the elastic member to drive the control valve away from the control handle of the pressing wall.

When the inflation joint is in a normal position, the holding member is clamped between the pressing wall and the control valve; when the control handle pivots and drives the control valve to overcome the elastic force of the elastic member away from the pressure When inflated against the wall, the inflatable joint will switch to an assembled position.

The utility model has the advantages that the foregoing structure is suitable for one-hand operation in addition to less components and labor-saving operation, so as to improve the convenience of operation.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 4, 5 and 6, a first embodiment of the inflatable joint of the present invention is also used to connect a gas source 20, and a valve 21, the form of which is not particularly limited, and may be electric or manual. The air compressor or the air pumping device, FIG. 4 only shows a pipe body for conveying gas, and the form of the valve body 21 is not particularly limited. This embodiment illustrates a French valve (presta valve), due to the present invention. The improvement is independent of the structure of the valve 21 and will not be described in detail. The inflation joint comprises: an inflatable housing 3 for the gas source 20 to overlap, a holding member 4 mounted inside the inflatable housing 3, and a movable member 4 for driving the holding member 4 in a relaxed position and a clip A control mechanism 5 for switching between pressure deformation positions.

The inflatable housing 3 includes a base 30 for gripping, and an end cap 31 screwed to the front end of the base 30. The base 30 has a housing portion 33 for the gas source 20 to overlap. And an air passage 34 defined by the housing portion 33. The housing portion 33 has a first surrounding wall 331 that is hollow and extends along a first direction 35, a second surrounding wall 332 that is integrally connected to the first surrounding wall 331 and extends along a second direction 36, a pivot mounting block 333 protruding from the second surrounding wall 332 and adjacent to the first surrounding wall 331, and a retaining wall 334 vertically connected to the first surrounding wall 331, the retaining wall 334 having a along the first A perforation 335 is provided in a direction 35, the first direction 35 being perpendicular to the second direction 36, but in practice, it is not necessary to be vertical. The end cap 31 has a pressing wall 311 spaced apart from the retaining wall 334, and a screwing wall 312 extending from the outer periphery of the pressing wall 311 toward the first surrounding wall 331 and screwed together. The wall 311 has an assembly hole 313.

The air passage 34 has an assembly chamber 341 corresponding to the first surrounding wall 331 and interposed between the pressing wall 311 and the blocking wall 334, and an inlet chamber 342 substantially corresponding to the second surrounding wall 332. The intake chamber 342 has a first communication port 343 whose aperture is reduced and communicates with the assembly chamber 341, and a second communication port 344 adjacent to the gas source 20. Further, the base 30 further has a receiving groove 37 defined by the first surrounding wall 331 and having an opening facing rearward and downward. For the purpose of the present invention, the structure of the inflatable housing 3 is not limited by the combination of the base 30 and the end cover 31. For example, the inflatable housing 3 may be formed by butting the two housings to the left and right.

The holding member 4 is disposed in the assembly chamber 341 of the inflatable housing 3, and the form thereof is not particularly limited, and may be a hollow ring shape as shown in the embodiment or a sleeve-like form. For example, the holding member 4 is made of a resiliently deformable elastic material and has a holding hole 41 corresponding to the assembling hole 313 of the wall 311.

The control mechanism 5 has a movable control valve 51 mounted in the inflatable housing 3, two leakage preventing rings 52 disposed outside the control valve 51 spaced along the first direction 35, and a control The valve 51 is pressed against the elastic member 53 that presses the holding member 4, a control handle 54 that is interlocked with the control valve 51, and a controllable handle 54 that is pivotally mounted in the direction of the pressing wall 311. The pivot of the inflatable housing 3 is mounted at a pivot 55 at block 333.

The control valve 51 has a pressure control portion 511 located in the assembly chamber 341 of the base 30, and a link portion 512 passing through the through hole 335 and interlocking with the control handle 54. The pressure control portion 511 has a a valve ring wall 513 for the leakage preventing ring 52, a valve bottom wall 514 connecting the valve ring wall 513 and the connecting rod portion 512, and a valve ring wall 513 and the valve bottom wall 514 are jointly defined by the valve ring wall 513 and the valve bottom wall 514 Opening and opening toward the inflation passage 515 of the pressing wall 311, the valve ring wall 513 has a ring groove 516 between the leakage preventing rings 52 corresponding to the first communication port 343, at least one communicating with the ring The groove 516 and the venting opening 517 of the inflation passage 515, and a slanting groove 518 facing the pressing wall 311 for receiving the holding member 4. The link portion 512 has a flared end 519 that corresponds to the slot 37.

The elastic member 53 is disposed on the connecting rod portion 512 of the control valve 51 and interposed between the valve bottom wall 514 and the blocking wall 334 for guiding the control valve 51 to the pressing wall 311. Pushing, while holding the gripping member 4 together with the pressing wall 311, the holding member 4 is maintained at the pinch deformation position. The control handle 54 has a plate body portion 541 and at least one pivoting portion 542 protruding from the plate body portion 541 to the pivot mounting block 333. The plate body portion 541 has a protruding portion into the receiving groove 37 and A locking groove 543 of the connecting portion 512 of the connecting portion 512 and a pressing end 544 opposite to the locking groove 543 at the opposite end of the pivot 55 are defined.

Referring to Figures 4, 6, and 7, in the embodiment, the inflatable joint is received by the elastic member 53 in a normal position shown in Figure 6, and the control valve 51 is directed to the pressing wall of the inflatable housing 3. The holding member 311 is close to and clamped together, and the holding member 4 is located at the pinch deformation position. Due to the compression, the holding hole 41 of the holding member 4 is in the normal position. The aperture is reduced and the valve 21 cannot be inserted into the interior of the inflation joint when in this position.

When the user grips the inflation joint and overcomes the elastic force of the elastic member 53 to drive the control handle 54 to pivot with the pivot 55 as a fulcrum, the inflation joint can be driven to change from the normal position to the position shown in FIG. An assembly position, at this time, the control handle 54 will drive the control valve 51 to move away from the side of the pressing wall 311, and the holding member 4 will no longer be clamped due to the displacement of the control valve 51. The pressure is simultaneously reset by the elastic force of the body, and the holding hole 41 of the holding member 4 is reset and enlarged. At this time, the valve 21 can pass through the assembly hole 313 along the first direction 35, pass through the holding hole 41 of the holding member 4, and finally extend into the inflation passage 515 of the control valve 51. Inside.

When the force for driving the control handle 54 to be pivoted is released, the elastic member 53 which is originally compressed releases the elastic force, and the control valve 51 is pushed toward the pressing wall 311, and finally together with the pressing wall 311. The holder 4 is clamped and switched to the normal position of FIG. At this time, the valve 21 will be clamped by the holding member 4, and after the gas enters the air inlet chamber 342 from the gas source 20, the first communication port 343, the ring groove 516, and the through hole The vent 517 enters the inflation passage 515 of the control valve 511 and finally enters the valve 21. When the valve 21 is pulled out, as long as the control handle 54 is pivoted against the elastic force of the elastic member 53, the control valve 51 can be driven away from the pressing wall 311 to easily unplug the valve. twenty one.

Referring to Figures 8 and 9, a second embodiment of the inflatable joint of the present invention is also mountable to the gas source 20 and the valve 21, which is a Schrader valve and has an internal The air core 211 is opened to open the gas flow passage, and the structure of the inflation joint is similar to that of the first embodiment, except that the inflation joint further includes a top core installed in the inflation passage 515 of the control valve 51. Item 6, the top core member 6 can push the gas core 211 to be retracted to open the gas flow path.

It can be seen from the above description that the structure of the inflatable joint of the present invention is not only novel, but the elastic force pivoting of the elastic member 53 can be overcome and the control valve 51 can be driven away by merely pressing the control handle 54 with one hand and easily. The pressing valve 311 is pressed against the holding member 4 to facilitate the insertion of the valve 21 into the inflation passage 515 of the control valve 51. When the force of the holding force is released, the control valve 51 will be the elastic member. The action of 53 automatically moves closer to the pressing wall 311 and clamps the holding member 4 and fastens the valve 21. The foregoing structure has not only a small number of members, but also can overcome the elastic force of the elastic member 53 with one hand during operation, and the valve 21 can be easily installed, and the valve 21 can be automatically clamped when the external force is released, so the present invention is not only Low operating resistance and easy handling with one hand.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the simple equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still Within the scope of the invention patent.

20‧‧‧ gas source
21‧‧‧ Valves
211‧‧‧ gas core
3‧‧‧Inflatable housing
30‧‧‧Base
31‧‧‧End cover
311‧‧‧ pressed against the wall
312‧‧‧ screw wall
313‧‧‧Assembled holes
33‧‧‧Shell Department
331‧‧‧First wall
332‧‧‧Second wall
333‧‧‧Pivot mounting block
334‧‧ ‧ retaining wall
335‧‧‧Perforation
34‧‧‧Airway
341‧‧‧ Assembly room
342‧‧‧Intake room
343‧‧‧ first connection
344‧‧‧second communication port
35‧‧‧First direction
36‧‧‧second direction
37‧‧‧ accommodating slot
4‧‧‧Bundle
41‧‧‧Bundle
5‧‧‧Control agency
51‧‧‧Control valve
511‧‧‧Voltage Control Department
512‧‧‧ linkage
513‧‧‧Valve wall
514‧‧‧Bottom wall
515‧‧‧ inflatable passage
516‧‧‧ Ring groove
517‧‧‧Ventinel
518‧‧‧ oblique expansion slot
519‧‧‧
52‧‧‧ leakproof ring
53‧‧‧Flexible parts
54‧‧‧Control handle
541‧‧‧ Board Department
542‧‧‧ pivotal
543‧‧‧ buckle groove
544‧‧‧pressure control end
55‧‧‧ pivot
6‧‧‧Top core parts

Other features and advantages of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is an exploded perspective view of the patent of US 5,762,095; Figure 2 is a cross-sectional view of the invention patent of Figure 1. Schematic, the invention patent is in a preliminary position; Figure 3 is a view similar to Figure 2, the invention patent is in an inflated position; Figure 4 is a side elevational view of a first embodiment of the inflatable joint of the present invention, illustrating The gas-filled joint has a relative relationship with a gas source and a valve. The solid line in the figure indicates that the gas-filled joint is in a normal position, and the imaginary line indicates that the gas-filled joint is in an assembled position; FIG. 5 is the first embodiment. Figure 1 is a cross-sectional view of the first embodiment, the inflatable joint is in the normal position; Figure 7 is a view similar to Figure 6, the inflatable joint is in the assembled position; Figure 8 is An exploded perspective view of a second embodiment of the inflatable joint of the present invention; and FIG. 9 is a schematic cross-sectional view of the second embodiment, illustrating the gas fitting and the gas And the relative relationship of the valve.

Claims (10)

An inflation joint for connecting a gas source and a valve, and comprising: an inflatable housing having a housing portion for mounting the gas source, an air passage defined by the housing portion, and a Pressing against the wall, the air passage has an assembly chamber having an assembly hole for the valve to protrude into the assembly chamber; a holding member located in the assembly chamber of the inflatable housing and having a a holding hole through which the valve passes; and a control mechanism having a movable control valve installed in the assembly chamber of the inflatable housing, and a control valve that pushes the control valve toward the pressing wall to clamp The elastic member of the holding member and a controllable handle that is pivotally mounted on the housing portion and overcomes the elastic force of the elastic member to drive the control valve away from the pressing wall. The inflation joint of claim 1, wherein the inflatable housing includes a base having the housing portion and the air passage, and an end cover coupled to the base and having the pressing wall, the housing The body has a first surrounding wall that is hollow and extends along a first direction, and a retaining wall spaced from the pressing wall and connected to the first surrounding wall, the assembly chamber corresponding to the first surrounding wall, and Between the retaining wall and the pressing wall. The inflation joint of claim 2, wherein the housing portion of the base further has a second surrounding wall connected to the first surrounding wall and extending along a second direction, the air passage further having a An inlet chamber corresponding to the second surrounding wall, the inlet chamber having a first communication port communicating with the assembly chamber, and a second communication port adjacent to the gas source, wherein the gas source is overlapped On the wall. The inflatable joint of claim 3, wherein the first direction is perpendicular to the second direction. The inflation joint of claim 3, wherein the control valve has a pressure control portion mounted in the assembly chamber movable along the first direction, the pressure control portion having a valve for the valve to be inserted An inflation passage, a ring groove communicating with the first communication port, and a vent hole connecting the inflation passage and the ring groove, and the control mechanism further has two sleeves disposed on the pressure control portion and located in the ring groove Leakproof ring on the opposite side. The inflation joint of claim 5, wherein the control valve further has a link portion connected to the pressure control portion and passing through the retaining wall, and the control handle has a plate portion and at least one pivotal connection The control mechanism further has a pivot shaft mounted on the base for pivoting the at least one pivot portion, the plate body portion having a buckle groove for fastening the link portion, and a The buckle grooves are respectively located at the pressure control ends of the opposite ends of the pivot. The inflation joint of claim 5, wherein the pressure control portion of the control valve further has a valve ring wall surrounding the inflation passage, and a valve bottom wall connected to the valve ring wall and adjacent to the retaining wall. The elastic member is supported between the bottom wall of the valve and the blocking wall. The inflation joint of claim 7, wherein the valve ring wall of the control valve has a slanting groove facing the pressing wall for receiving the holding member. The inflatable joint according to any one of claims 5 to 8, wherein the valve has a gas core that can be pushed in, and the inflation joint further includes a gas passage installed in the control valve and used for Push the top core of the gas core. The inflation joint of claim 1, wherein the control valve has an inflation passage in communication with the air passage and for the valve to extend into the inflation.