CN201728618U - Quick connector structure - Google Patents

Abstract

The utility model discloses a quick joint structure. The clamping part and the groove are embedded mutually, the first step ring abuts against the first C-shaped ring buckle, the second step ring is positioned in the first through hole and abuts against the first bead body, when part of the second step ring protrudes into the holding tube, the inner flange of the sleeve ring is positioned in the second through hole and pushes against the second bead body, and part of the second step ring protrudes into the holding tube, the first bead body abuts against the sleeve seat, so that the shaft sleeve and the first elastic component are in a fixed state; the clamping part rotates away from the groove to push the sleeve, when the first step ring and the second step ring move towards the direction far away from the extending part and far away from the first perforation, the inner flange compresses the second elastic component and keeps away from the second perforation, the first bead body is far away from the top end of the sleeve seat and moves into the space formed by the sleeve body, the second bead body moves into the space formed by the sleeve body, and the shaft sleeve is in a movable state through the elasticity of the first elastic component. The fixed and movable states of the design simplify the combination of the screwdriver head and the operation and are convenient to use.

Description

Quick connector structure

technical field

The utility model relates to a quick joint structure, in particular to a quick joint structure which is convenient to use and simplifies operation without taking out a screwdriver head.

Background technique

Generally connected to the joint of the screwdriver rod, a shaft body with a telescopic hole is installed in the outer ring, and a steel ball is installed in the telescopic hole. A fixed rib is provided on the outer ring of the shaft and a spring is arranged around the outer circumference. 1. It is composed of a sleeve with a concave slope and resisted by the ribs. When the screwdriver rod with the shaft groove ring is to be inserted into the joint, the sleeve can be pressed and pushed inward by a single spring. Let the steel ball have space to enter the concave slope of the sleeve, just push the screwdriver rod in instantly, and the steel ball will return to the telescopic hole and be stuck in the groove ring of the shaft to form a stuck state with the spring automatically rebounding; but often need to press the sleeve The screwdriver rod can only be connected by the pushing action of the spring in one direction, and the screwdriver rod can be taken out or replaced by repeatedly pressing the sleeve, which makes the connection and installation of the screwdriver rod limited, which is not fast and inconvenient, thereby reducing market demand.

Utility model content

In order to overcome the above defects, the purpose of the present invention is to provide a quick joint structure, which improves and breaks through the problem of inconvenient operation in the prior art.

In order to achieve the above object, the quick joint structure of the present utility model includes: a handle tube, one end of which is a hollow structure, and includes at least two first perforations, a ring groove, at least two second perforations, a shoulder and a an extension part with a smaller outer diameter, the extension part is arranged at the end of the handle tube having a hollow structure, the shoulder part is connected with the extension part, and the ring groove is spaced apart from the shoulder part in a direction away from the extension part Set, the first perforation and the second perforation ring are set on the handle, and the second perforation is set between the ring groove and the shoulder, and the first perforation is correspondingly set on the other side of the ring groove On the side, the ring groove sleeve is provided with a first C-shaped ring buckle, and the first through hole and the second through hole can be freely accommodated by a corresponding number of first beads and second beads respectively; a shaft sleeve, Accommodated in the handle tube, the end of the sleeve away from the extension has an annular flange, and the end adjacent to the extension is plugged with a magnetic component; a first elastic component is partly inserted in the sleeve, The other part is inserted into the handle tube, and the two ends of the first elastic component respectively abut against the magnetic component and the end of the handle tube away from the extension part; One end of one end forms a ring protrusion, which abuts against the ring-shaped flange of the shaft sleeve, and the outer surface of the ring protrusion or the top of the sleeve abuts against the first bead; a sleeve is sleeved on the The end of the handle tube has a hollow structure, and the end of the sleeve adjacent to the first through hole forms a first-stage ring and a second-stage ring outwardly in sequence, the inner diameter of the first-stage ring is smaller than the inner diameter of the sleeve, The inner diameter of the second-stage ring is smaller than the inner diameter of the first-stage ring; a ring, plugged and fixed in the sleeve, is located between the handle tube and the sleeve and adjacent to the first through-hole, the An inner flange protrudes inwardly from one end of the collar adjacent to the second-stage ring; a second elastic component is sleeved between the handle tube and the sleeve, and the two ends of the second elastic component respectively abut against On the bottom surface of the collar and the top surface of the first C-shaped ring buckle; and an adjustment seat, which is rotatably fixed on the extension part, and a magnetic ring is embedded in the adjustment seat.

The adjustment seat axially protrudes more than one arc-shaped clamping portion, and the sleeve forms a corresponding number of arc-shaped grooves corresponding to the clamping portion, and the grooves are movably embedded in the clamping portion.

The clamping part and the groove are embedded with each other, the first-stage ring is against the first C-shaped ring buckle, and the second-stage ring is located at the first through hole against the first bead, and the first When the bead protrudes in the handle tube, the inner flange of the collar is positioned at the second perforation and pushes against the second bead and the second bead protrudes in the handle tube, and the first bead The body abuts against the top end of the sleeve, and the shaft sleeve and the first elastic component are in a fixed state.

The locking part turns away from the position of the groove and the sleeve moves a certain distance. When the first-stage ring and the second-stage ring move away from the extension part and away from the first through hole, the collar of the collar moves away from the first through hole. The inner flange compresses the second elastic component and moves away from the second perforation, the first bead moves away from the top of the socket and moves into the space formed by the sleeve body, and the second bead moves to the collar In the space formed by the main body, the sleeve is in an active state through the elasticity of the first elastic component.

Preferably, a transition device is also included, the transition device includes a cam, a second C-shaped ring buckle, a push piece, three clamping blocks and an outer sleeve, the cam has a disc body, an external thread A section and a joint section, the side of the disk body connected to the external thread section has a receiving groove, the external thread section is axially arranged at the center of one side of the disk body, and the joint section is axially arranged on the disk The center of the other side of the body is inserted into the grip tube. The connection between the external thread section and the disc body is provided with a third C-shaped ring buckle. The pushing member is in a tapered cone structure, and It has a large-diameter end, a small-diameter end and an internal threaded hole. The outer wall of the large-diameter end has at least one concave hole, which is rotatably accommodated by a third bead, and the large-diameter end passes through the second C-shaped The ring is buckled against the plate body, the small diameter end pushes against the clamping block, the internal thread hole penetrates from the large diameter end to the small diameter end, and is screwed with the external thread section, and the thread direction of the internal thread hole Contrary to the thread direction of the external thread segment, the clamping blocks are scalablely combined with a third elastic component. Each clamping block has a one-third cone structure, and forms a cone structure when combined. The outer sleeve A tapered hollow cone structure is sleeved outside the clamping block and the pushing member, and placed in the receiving groove of the disc body. The outer sleeve is provided with a ring corresponding to the second C-shaped ring buckle. The embedded groove is fitted and fixed with the second C-shaped ring buckle.

The diameter of the first bead is larger than that of the second bead.

Each first bead body and each second bead body are a steel ball.

The first elastic component and the second elastic component are a compression spring.

The third elastic component is a compression spring.

Further, the quick joint structure of the present utility model includes: a handle pipe, one end of which is a hollow structure, and includes at least two first perforations, a ring groove, at least two second perforations, a shoulder and a small an extension of the outer diameter, the extension is disposed at the end of the handle tube having a hollow structure, the shoulder is connected to the extension, and the annular groove is disposed at a distance from the shoulder in a direction away from the extension, The first perforation and the second perforation ring are provided on the handle, and the second perforation is provided between the ring groove and the shoulder, and the first perforation is correspondingly provided on the other side of the ring groove, The ring groove sleeve is provided with a first C-shaped ring buckle, and the first through hole and the second through hole are respectively accommodated freely by a corresponding number of first beads and second beads; a shaft sleeve accommodates In the handle tube, the end of the sleeve away from the extension has an annular flange, and a magnetic component is plugged at the end adjacent to the extension; a first elastic component, a part of which is inserted in the sleeve, and the other part Inserted in the handle tube, the two ends of the first elastic component respectively abut against the magnetic component and the end of the handle tube away from the extension part; A ring protrusion is formed, and it abuts against the annular flange of the shaft sleeve, and the outer surface of the ring protrusion or the top of the sleeve abuts against the first bead; a sleeve is sleeved on the grip tube The end having a hollow structure, the end of the sleeve adjacent to the first through hole forms a first-stage ring and a second-stage ring outwardly in sequence, the inner diameter of the first-stage ring is smaller than the inner diameter of the sleeve, and the first-stage ring has an inner diameter smaller than that of the sleeve. The inner diameter of the second-stage ring is smaller than the inner diameter of the first-stage ring; a ring, plugged and fixed in the sleeve, is located between the handle tube and the sleeve, and is adjacent to the first through-hole, and the ring is adjacent to One end of the second-stage ring protrudes inwardly with an inner flange; a second elastic component is sleeved between the handle tube and the sleeve, and the two ends of the second elastic component respectively abut against the sleeve The bottom surface of the ring and the top surface of the first C-shaped ring buckle; an adjustment seat is rotatably fixed on the extension part, and a magnetic ring is embedded in the adjustment seat, and the adjustment seat axially protrudes more than one circular arc shaped clamping part, the sleeve forms a corresponding number of arc-shaped grooves corresponding to the clamping part, and the grooves are movably embedded with the clamping part; and an adapter device includes a cam, a first Two C-shaped ring buckles, a push piece, three clamping blocks and an outer sleeve, the cam has a disc body, an external thread segment and a joint segment, and the side of the disc body connected to the external thread segment has an accommodating Groove, the external thread section is axially arranged at the center of one side of the disc body, the joint section is axially arranged at the center of the other side of the disc body to be inserted into the handle tube, the external thread section A third C-shaped ring buckle is sleeved at the joint with the disc body. The pushing member has a tapered conical structure and has a large-diameter end, a small-diameter end and an internal threaded hole. The outer side of the large-diameter end The wall has at least one concave hole, which is rotatably accommodated by a third bead, and the large-diameter end pushes against the disc body through the second C-shaped ring buckle, the small-diameter end pushes against the clamping block, and the inner The threaded hole runs through from the large-diameter end to the small-diameter end, and is screwed with the external thread section, and the thread direction of the internal thread hole is opposite to that of the external thread section. The clamping blocks are scalablely combined with a third elastic component. Each clamping block has a one-third cone structure. When combined, it forms a cone structure. The outer sleeve is a tapered hollow cone structure. Outside the clamping block and the pushing member, and placed in the receiving groove of the disc body, the outer sleeve is provided with an embedded groove corresponding to the second C-shaped ring buckle, and the embedded groove is connected to the second C-shaped ring buckle. The two C-shaped ring buckles are fitted and fixed; the locking part and the groove are embedded with each other, the first-level ring is against the first C-shaped ring buckle, and the second-level ring is located on the top of the first through hole When touching the first bead and the first bead partially protrudes in the handle tube, the inner flange of the collar is positioned at the second perforation and pushes against the second bead while the second bead part part protrudes from the handle tube, and the first bead abuts against the top of the sleeve, and the sleeve and the first elastic component are in a fixed state; the locking part turns away from the groove position and the sleeve moves A certain distance, when the first-stage ring and the second-stage ring move away from the extending portion and away from the first through hole, the inner flange of the collar compresses the second elastic component and moves away from the second through hole At the position, the first bead is away from the top end of the sleeve, and the sleeve is in an active state through the elasticity of the first elastic component.

The quick joint structure of the present utility model adopts the above-mentioned design, has a fixed state and a movable state, and can be combined with another screwdriver bit or a drill bit in the state of having a screwdriver bit, or an adapter device can be installed to combine another screwdriver bit or a drill bit. Drill bits, while magnetically holding screwdriver bits, drill bits or screws temporarily in place for easy one-handed operation.

Description of drawings

Fig. 1 is an exploded view of the first embodiment of the utility model.

Fig. 2 is a cross-sectional view of the first embodiment of the present invention combined with a sub head in a fixed state.

Fig. 3 is a cross-sectional view of the first embodiment of the present invention combined with a sub head in a movable state.

Fig. 4 is a cross-sectional view of the first embodiment of the utility model combined with a screw head and magnetically attracted to a screw.

Fig. 5 is a cross-sectional view of the first embodiment of the present invention combined with a drill head and a drill bit.

FIG. 6 is an assembly diagram of the first embodiment of the present invention in a fixed state.

FIG. 7 is a combination diagram of the first embodiment of the present invention in an active state.

FIG. 8 is a partial exploded view of the second embodiment of the present invention.

Fig. 9 is a cross-sectional view of the second embodiment of the present invention.

Fig. 10 is a combination diagram of the second embodiment of the present invention.

Fig. 11 is an action sectional view of the second embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

As shown in Figure 1, it is an exploded view of the first embodiment of the utility model. The quick joint structure 10 of this embodiment includes a grip tube 11, a shaft sleeve 12, a first elastic component 13, a seat 14, a sleeve 15, a collar 16, a second elastic component 17 and a Adjustment seat 18.

One end of the grip tube 11 is a hollow structure, and includes at least two first perforations 111, a ring groove 112, at least two second perforations 113, a shoulder 114 and an extension 115, and the outer diameter of the extension 115 is slightly smaller than the handle. The outer diameter of the pipe 11 body, and the extension 115 is arranged at the end of the handle pipe 11 having a hollow structure, the shoulder 114 is connected with the extension 115, and the ring groove 112 is arranged at a distance from the shoulder 114 in a direction away from the extension 115, The number of the first through holes 111 and the second through holes 113 is at least two. This embodiment takes three first through holes and three second through holes as an example for drawing and illustration, but it is not limited to this, and the first The through-holes 111 and the second through-holes 113 are arranged on the handle tube 11 at approximately equal intervals. Specifically, the second through-holes 113 are arranged between the ring groove 112 and the shoulder 114, and the first through-holes 111 are correspondingly arranged in the ring groove. On the other side of 112, the ring groove 112 is set with a first C-shaped ring buckle 116, and the first through hole 111 and the second through hole 113 respectively provide the corresponding number of first beads 117 and second beads 118 to move freely. Each first bead 117 and each second bead 118 can be a steel ball, and the diameter of the first bead 117 can be slightly larger than the second bead 118 .

The sleeve 12 is accommodated in the handle tube 11 , and the end of the sleeve 12 away from the extension portion 115 has an annular flange 121 , and the end adjacent to the extension portion 115 is plugged with a magnetic component 122 .

The first elastic component 13 can be a compression spring, a part of which is inserted in the shaft sleeve 12, and the other part is inserted in the grip tube 11. Meanwhile, the two ends of the first elastic component 13 respectively lean against the magnetic component 122 and the One end of the tube 11 away from the extension 115 .

The sleeve 14 is sleeved outside the shaft sleeve 12, and one end of the sleeve 14 is formed with a ring protrusion 141, which is abutted against the annular flange 121 of the shaft sleeve 12, and the outer surface of the ring protrusion 141 or the top of the sleeve 14 Resist the first bead 117 .

The sleeve 15 is sleeved on the end of the handle tube 11 which has a hollow structure. The end of the sleeve 15 adjacent to the first through hole 111 forms a first-stage ring 151 and a second-stage ring 152 in sequence outwardly. The first-stage ring 151 The inner diameter of the second-stage ring 152 is smaller than that of the first-stage ring 151 . The other end of the sleeve 15 is recessed with a plurality of arc-shaped grooves 153 for the corresponding number of arc-shaped clamping portions 182 of the adjustment seat 18 to be movably embedded with each other.

The collar 16 is plugged and fixed in the sleeve 15, and is located between the grip tube 11 and the sleeve 15, and is adjacent to the first perforation 111. The collar 16 is adjacent to one end of the second-stage ring 152, and has an inwardly protruding inner ring 16. flange 161 .

The second elastic component 17 can be a compression spring, which is sleeved between the grip tube 11 and the sleeve 15, and the two ends of the second elastic component 17 respectively abut against the bottom surface of the collar 16 and the top surface of the first C-shaped ring buckle 116 .

The adjustment seat 18 is rotatably fixed on the extension part 115, and the adjustment seat 18 is embedded with a magnetic ring 181, and axially protrudes a plurality of arc-shaped clamping parts 182, and the clamping parts 182 and the corresponding number of concave The grooves 153 are movably embedded in each other.

As shown in Fig. 2 and Fig. 6, Fig. 2 is a sectional view of the first embodiment of the present invention combined with a subhead in a fixed state, and Fig. 6 is a combined view of the first embodiment of the present invention in the fixed state.

When the clamping portion 182 is embedded with a corresponding number of grooves 153 (as shown in FIG. 6 ), the first step ring 151 abuts against the first C-shaped ring buckle 116 , and the second step ring 152 is located in the first through hole 111 When the first bead 117 is pushed against the first bead 117 so that the first bead 117 partially protrudes in the grip tube 11, the inner flange 161 of the collar 16 is located at the second through hole 113 and is pushed against the second bead 118 to make the first bead 118 protrude. The second bead 118 partially protrudes from the grip tube 11, and the first bead 117 abuts against the top of the sleeve 14, so that the sleeve 12 and the first elastic component 13 are in a fixed state (as shown in FIG. 2 ). At this time, when the screwdriver bit 19 is inserted into the grip tube 11, the bottom and the body of the screwdriver bit 19 can be magnetically attracted by the magnetic assembly 122 and the magnetic ring 181 respectively (as shown in FIG. 2 ).

As shown in Fig. 3 and Fig. 7, Fig. 3 is a cross-sectional view of the first embodiment of the present invention combined with a sub-head in an active state, and Fig. 7 is a combined view of the first embodiment of the present invention in this active state.

When the clamping portion 182 turns away from the position of the corresponding number of grooves 153 (as shown in FIG. 6 ) to push the sleeve 15 a certain distance, the first-stage ring 151 and the second-stage ring 152 move away from the extension portion 115 . When away from the first through hole 111, the inner flange 161 of the collar 16 compresses the second elastic component 17 and moves away from the second through hole 113, so that the first bead 117 moves away from the top of the sleeve 14 to the body formed by the sleeve 15. In the space, the second bead 118 moves into the space formed by the body of the collar 16, and the bushing 12 is in an active state through the elasticity of the first elastic component 13 (as shown in FIG. 3 ). At this time, when the screwdriver head 19 is inserted into the grip tube 11, the bottom and the body of the screwdriver head can be magnetically attracted respectively by the magnetic assembly 122 and the magnetic ring 181 to be movably fixed (as shown in FIG. 3 ). When the head 19 applies force, the bit 19 of the screwdriver can be pressed into the handle pipe 11 again, and reset by the elasticity of the first elastic component 13 .

As shown in FIG. 4 , it is a cross-sectional view of the first embodiment of the utility model combining a screw head and magnetically attracting a screw. When the quick joint structure 10 of this embodiment is in the active state shown in Figure 3, when a screw 101 is to be locked, the head of the screw 101 can press the screwdriver head 19 and be magnetically attracted by the magnetic ring 181. Temporary fixation, so that the user can align the screw 101 with one hand at the predetermined position; when the screw 101 has been partially inserted into the predetermined position, the user can hold the handle 11 and apply a little force outward to make the screwdriver head 19 Detach from the magnetic ring 181 to perform locking action with one hand.

As shown in FIG. 5 , the first embodiment of the utility model is a cross-sectional view of combining a sub head and a drill bit. When the screwdriver bit 19 is externally connected to another drill bit 19 ', the bottom of the drill bit 19 ' pushes against the top of the screwdriver bit 19 and presses down; The screwdriver head 19 is fixed by the first bead 117 , and the second bead 118 abuts against a pressing groove 191 ′ of the drill 19 ′ to fix the drill 19 ′. Therefore, it is not necessary to remove the screwdriver bit 19 and then insert the drill bit 19', which is convenient to use and simplifies the operation.

As shown in Figure 8, Figure 9, and Figure 10, Figure 8 is a partial exploded view of the second embodiment of the utility model, Figure 9 is a cross-sectional view of the second embodiment of the utility model, and Figure 10 is a second embodiment of the utility model Example combination diagram.

The quick joint structure of this embodiment is combined with the quick joint structure 10 of the aforementioned first embodiment with an adapter device 20, including a cam 21, a second C-shaped ring buckle 22, a pushing member 23, and three clamping blocks 24 And an outer sleeve 25.

The cam 21 has a disc body 211, an external thread segment 212 and a coupling segment 213, wherein the side of the disc body 211 connected to the external thread segment 212 has a receiving groove 214, and the external thread segment 212 is axially arranged on the disc body 211- At the center of the side, the coupling section 213 is axially arranged at the center of the other side of the disc body 211 for insertion into the handle tube 11 of the quick joint structure 10, and its combination method is the same as that of the drill bit 19 shown in FIG. 5 'Similar, no more details; and the connection between the external thread section 212 and the disc body 211, a third C-shaped ring buckle 215 is sleeved.

The pushing member 23 is generally tapered conical structure, and has a large-diameter end 231, a small-diameter end 232 and an internally threaded hole 233, the outer wall of the large-diameter end 231 has at least one concave hole 234 for a first The three beads 235 are rotatably accommodated, and the third bead 235 is rotatably pressed against the inner wall of the outer sleeve 25, so that the rotation (screw rotation) and movement (push) of the pushing member 23 are smoother, and the large diameter The end 231 pushes against the disk body 211 through the second C-shaped ring buckle 22, the small-diameter end 232 pushes against the clamping block 24, and the internal thread hole 233 penetrates from the large-diameter end to the small-diameter end for screwing the external thread section 212, and The thread direction of the internally threaded hole 233 is opposite to that of the externally threaded segment 212 .

The three clamping blocks 24 are scalablely combined with each other by a third elastic component 26 , and each clamping block 24 is approximately one-third of a cone structure, and forms a cone structure when combined. The three clamping blocks 24 are pushed by the pushing member 23 and gradually advance towards the tapered end of the outer sleeve 25 and shrink inward, so as to clamp and fix another screwdriver bit 27 (as shown in Figure 11) or a drill bit (in the figure). not shown).

The outer sleeve 25 is roughly tapered hollow cone structure, sleeved outside the three clamping block 24 and the push piece 23, and put into the receiving groove 214 of the disc body 211, the outer sleeve 25 corresponds to the second C-shaped ring The buckle 22 is provided with an embedded groove 251 , which is fitted and fixed with the second C-shaped ring buckle 22 .

Generally speaking, the thread direction of the externally threaded section and the internally threaded hole is the same direction, so when the externally threaded section is to be screwed into the internally threaded hole, it should be locked by turning clockwise; and the internally threaded hole 233 of the utility model The direction is opposite to the thread direction of the externally threaded section 212, and when the externally threaded section 212 is screwed into the internally threaded hole 233, it is turned in a counterclockwise direction to lock (as shown in FIG. 11 ).

Because another screwdriver bit or drill bit (not shown in the figure) will be locked or drilled when clamping block 24 clamps and fixes, the screwdriver bit or drill bit must be locked or drilled with clockwise rotation and must make The push piece 23 continues to push against the clamping block 24 to continuously fix the screwdriver bit or drill bit, so the thread direction of the internally threaded hole 233 is opposite to the thread direction of the external thread section 212, so that the screwdriver bit or drill bit can be locked by rotating clockwise Or while drilling, the pushing member 23 also continues to push against the clamping block 24 to continuously fix the screwdriver bit or the drill bit.

The above are only specific embodiments of the utility model, and cannot limit the patent scope of the utility model; all equal changes and modifications made according to the claims of the utility model all belong to the scope covered by the utility model.

Claims (10)

1. quick coupling structure is characterized in that: comprising:

One holds a writing brush or pen-write, the one end is a hollow structure, and comprise at least two first the perforation, one annular groove, at least two second perforation, one extension of one shoulder and the less external diameter of tool, this extension is arranged on this and holds a writing brush or pen-write and have this end of hollow structure, this shoulder is connected with this extension, this annular groove is towards direction and the distance setting at interval of this shoulder away from this extension, this first perforation and this second perforation ring are located on this holds a writing brush or pen-write, and this second perforation is arranged between this annular groove and this shoulder, the corresponding opposite side that is arranged on this annular groove of this first perforation, this annular groove is arranged with one the one C shape latch closure, this first perforation with this second bore a hole respectively can freedom ccontaining versatilely with the first pearl body of corresponding quantity and the second pearl body;

One axle sleeve is contained in this holds a writing brush or pen-write, and this axle sleeve has a collar flange away from an end of this extension, and an end plug of contiguous this extension is provided with a magnet assembly;

One first elastic parts, a part are set in this axle sleeve, and another part is set in this holds a writing brush or pen-write, and the two ends of this first elastic parts are resisted against this magnet assembly respectively and this holds a writing brush or pen-write away from an end of this extension;

One block set is set in outside this axle sleeve, and an end of this block set forms a ring protuberance, and supports this collar flange that ends at this axle sleeve, and the lateral surface of this ring protuberance or this block set top are supported and ended this first pearl body;

One sleeve, be set in this and hold a writing brush or pen-write and have this end of hollow structure, end of contiguous this first perforation of this sleeve forms one first a rank ring and a second order loop outwardly in regular turn, the internal diameter of this first rank ring is less than this sleeve diameter, and the internal diameter of this second order loop is less than the internal diameter of this first rank ring;

One collar, plug is established and is fixed in this sleeve, and the position this hold a writing brush or pen-write and this sleeve between, and contiguous this first perforation, an end of contiguous this second order loop of this collar inwardly is convexly equipped with an inward flange;

One second elastic parts, be set in this hold a writing brush or pen-write and this sleeve between, and the two ends of this second elastic parts are resisted against this a collar bottom surface and a C shape latch closure end face respectively; And

One adjusts seat, be installed in rotationally on this extension, and this adjustment seat is embedded with a magnet ring.

2. quick coupling structure as claimed in claim 1 is characterized in that: this adjustment seat axially protrudes out circular-arc fastening part more than, and corresponding this fastening part of this sleeve forms the arc-shaped groove of corresponding quantity, and this groove is embedded versatilely with this fastening part.

3. quick coupling structure as claimed in claim 2, it is characterized in that: this fastening part and this groove are embedded mutually, this first rank ring is against a C shape latch closure, and this second order loop is positioned at this this first pearl body of first perforation place contact and this first pearl body is given prominence to when this holds a writing brush or pen-write, then this inward flange position of this collar is in this second perforation place and push against this second pearl body and this second pearl body is given prominence in this holds a writing brush or pen-write, and this first pearl body supports and ends this block set top, and this axle sleeve and this first elastic parts are in a stationary state.

4. quick coupling structure as claimed in claim 2, it is characterized in that: this fastening part leaves this groove location and this sleeve is passed a segment distance, this first rank ring and this second order loop are towards away from this extension direction moves during away from this first perforation place, this inward flange of this collar compresses this second elastic parts and away from this second perforation place, this first pearl body moves in the formed space of this sleeve body away from this block set top, this second pearl body moves in the formed space of this collar body, and this axle sleeve is in an active state by the elasticity of this first elastic parts.

5. quick coupling structure as claimed in claim 1, it is characterized in that: also comprise a switching device, this switching device comprises a cam, one the 2nd C shape latch closure, one push piece, three clamping pieces and an outer tube, this cam has a disk body, one external thread section and an adapter section, the side that this disk body connects this external thread section has a holding tank, this external thread section axially is arranged on the centre of this disk body one side, this adapter section axially is arranged on the centre of this disk body opposite side, plant in this holds a writing brush or pen-write, this external thread section and this disk body junction, be arranged with one the 3rd C shape latch closure, this push piece is the conical structure of convergent, and has a bigger diameter end, one miner diameter end and an internal thread hole, the lateral wall of this bigger diameter end has at least one shrinkage pool, be installed with rotationally with one the 3rd pearl body, and this bigger diameter end passes through the 2nd C shape latch closure and this disk body of contact, this miner diameter end pushes against this clamping piece, this internal thread hole runs through towards this miner diameter end from this bigger diameter end, establish with this external thread section spiral shell, and the hand of spiral of this internal thread hole is opposite with the hand of spiral of this external thread section, this clamping piece mutually combines with one the 3rd elastic parts scalablely, each clamping piece is 1/3rd cone structures, in conjunction with the time form conical structure, this outer tube is the hollow cone structure of convergent, be set in this clamping piece, outside this push piece, and insert in this holding tank of this disk body, corresponding the 2nd C shape latch closure place of this outer tube is equipped with caulking groove in, and caulking groove and the 2nd C shape latch closure tabling are fixed in this.

6. quick coupling structure as claimed in claim 1 is characterized in that: the diameter of this first pearl body is greater than this second pearl body.

7. quick coupling structure as claimed in claim 1 is characterized in that: should each first pearl body be a steel ball with being somebody's turn to do each second pearl body.

8. quick coupling structure as claimed in claim 1 is characterized in that: this first elastic parts and this second elastic parts are a compression spring.

9. quick coupling structure as claimed in claim 5 is characterized in that: the 3rd elastic parts is a compression spring.

10. quick coupling structure is characterized in that: comprising:

One holds a writing brush or pen-write, the one end is a hollow structure, and comprise at least two first the perforation, one annular groove, at least two second perforation, one extension of one shoulder and the less external diameter of tool, this extension is arranged on this and holds a writing brush or pen-write and have this end of hollow structure, this shoulder is connected with this extension, this annular groove is towards direction and the distance setting at interval of this shoulder away from this extension, this first perforation and this second perforation ring are located on this holds a writing brush or pen-write, and this second perforation is arranged between this annular groove and this shoulder, the corresponding opposite side that is arranged on this annular groove of this first perforation, this annular groove is arranged with one the one C shape latch closure, this first perforation with this second bore a hole respectively can freedom ccontaining versatilely with the first pearl body of corresponding quantity and the second pearl body;

One axle sleeve is contained in this holds a writing brush or pen-write, and this axle sleeve has a collar flange away from an end of this extension, and an end plug of contiguous this extension is provided with a magnet assembly;

One first elastic parts, a part are set in this axle sleeve, and another part is set in this holds a writing brush or pen-write, and the two ends of this first elastic parts are resisted against this magnet assembly respectively and this holds a writing brush or pen-write away from an end of this extension;

One block set is set in outside this axle sleeve, and an end of this block set forms a ring protuberance, and supports this collar flange that ends at this axle sleeve, and the lateral surface of this ring protuberance or this block set top are supported and ended this first pearl body;

One sleeve, be set in this and hold a writing brush or pen-write and have this end of hollow structure, end of contiguous this first perforation of this sleeve forms one first a rank ring and a second order loop outwardly in regular turn, the internal diameter of this first rank ring is less than this sleeve diameter, and the internal diameter of this second order loop is less than the internal diameter of this first rank ring;

One collar, plug is established and is fixed in this sleeve, the position this hold a writing brush or pen-write and this sleeve between, and contiguous this first perforation, an end of contiguous this second order loop of this collar inwardly is convexly equipped with an inward flange;

One second elastic parts, be set in this hold a writing brush or pen-write and this sleeve between, and the two ends of this second elastic parts are resisted against this a collar bottom surface and a C shape latch closure end face respectively;

One adjusts seat, be installed in rotationally on this extension, and this adjustment seat is embedded with a magnet ring, and should adjustment axially protrudes out circular-arc fastening part more than, corresponding this fastening part of this sleeve forms the arc-shaped groove of corresponding quantity, and this groove is embedded movably with this fastening part; And

One switching device, comprise a cam, one the 2nd C shape latch closure, one push piece, three clamping pieces and an outer tube, this cam has a disk body, one external thread section and an adapter section, the side that this disk body connects this external thread section has a holding tank, this external thread section axially is arranged on the centre of this disk body one side, this adapter section axially is arranged on the centre of this disk body opposite side, plant in this holds a writing brush or pen-write, this external thread section and this disk body junction, be arranged with one the 3rd C shape latch closure, this push piece is the conical structure of convergent, and has a bigger diameter end, one miner diameter end and an internal thread hole, the lateral wall of this bigger diameter end has at least one shrinkage pool, be installed with rotationally with one the 3rd pearl body, and this bigger diameter end is by the 2nd this disk body of C shape latch closure contact, this miner diameter end pushes against this clamping piece, this internal thread hole runs through towards this miner diameter end from this bigger diameter end, establish with this external thread section spiral shell, and the hand of spiral of this internal thread hole is opposite with the hand of spiral of this external thread section, this clamping piece mutually combines with one the 3rd elastic parts scalablely, each clamping piece is 1/3rd cone structures, in conjunction with the time form conical structure, this outer tube is the hollow cone structure of convergent, be set in this clamping piece, outside this push piece, and insert in this holding tank of this disk body, corresponding the 2nd C shape latch closure place of this outer tube is equipped with caulking groove in, and caulking groove and the 2nd C shape latch closure tabling are fixed in this;

This fastening part and this groove are embedded mutually, this first rank ring is against a C shape latch closure, and this second order loop is positioned at this this first pearl body of first perforation place contact and this first pearl body portion is given prominence to when this holds a writing brush or pen-write, this inward flange position of this collar is in this second perforation place and push against this second pearl body and this second pearl body part is given prominence in this holds a writing brush or pen-write, and this first pearl body supports and ends this block set top, and this axle sleeve and this first elastic parts are in a stationary state; This fastening part leaves this groove location and this sleeve is passed a segment distance, this first rank ring and this second order loop are towards away from this extension direction moves during away from this first perforation place, this inward flange of this collar compresses this second elastic parts and away from this second perforation place, this first pearl body is away from this block set top, and this axle sleeve is in an active state by the elasticity of this first elastic parts.

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