CN1050335C

CN1050335C - Adhesive guiding needle structure

Info

Publication number: CN1050335C
Application number: CN94118410A
Authority: CN
Inventors: 颜贻宗
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-18
Filing date: 1994-11-18
Publication date: 2000-03-15
Anticipated expiration: 2014-11-18
Also published as: CN1123243A

Abstract

The present invention relates to an adhesive liquid guiding needle structure which is composed of a needle tube, a needle seat, a needle cover, a guide sleeve, a sealing pad, etc., wherein the center of one end of the needle seat is provided with a conical post hole which extends inwards, and the center of the other end is provided with a commissure and a guide hole; one end of the needle tube is in an oblique mouth and is penetrated in the center position of the conical cylindrical hole of the needle seat, the other end is in a flat mouth and is positioned on the outer end edge of the needle seat, and a length distance is formed between the flat mouth end and the needle seat; the needle tube and the needle seat are bonded with adhesives. The needle seat is inserted into a conical post of an adhesive container sealing cover by a liquid guiding needle in a needle rolling mode, and the needle tube is used by guiding the adhesives. The guide sleeve and the sealing pad are prearranged in the inner margin of the needle cover, and the needle cover is covered after the adhesives are used. The guide sleeve causes the needle end to be easy to slide to the center. A posthole guided to the center of the sealing pad causes the flat mouth end of the needle tube to be separated from outside air to prevent cyanoacrylate monomers in the needle tube from contacting air. When the needle cover is taken off, the needle tube can be used by guiding the adhesives. When the sealing pad of the inner margin of the needle cover ceases to be in effect or is lost, polymerization and sealing are generated by the polymeric curved surface of the tip part of the needle tube.

Description

Adhesive guiding needle structure

The present invention relates to a kind of water conservancy diversion pin, refer to that especially a kind of adhesive guiding needle that is applicable to that the cyanoacrylate adhesive water conservancy diversion uses is its feature.

Known alkyl-2-cyanoacrylate (ALKYL 2-CYANOACRYLAT) adhesives (being commonly called as instant adhesive or three seconds glue), be to utilize cyanoacrylate monomer when room temperature, not add rapid polymerization under the situation of catalyst easily, the polymerization of this kind fast speed is because of risen at first by the alkalescent material to go anionic polymerisation to cause, and this bondingly all has strong stickness to various adhesions; Same, the packing container of this cyanoacrylate adhesive and use after preserving type, all directly influence holding time of cyanoacrylate adhesive in the container.

Known cyanoacrylate adhesive manner of packing, be to utilize a highdensity polyethylene (Poly thylene) container to pack, this container is extended with an elongated dropper for the convenience of use is provided in bottle or capping outer end, and this dropper is outside to cover with a lid in addition; The packing of this adhesives is an enclosed body at the dropper end; During use, need elder generation to be rolled into towards the terminal center of dropper, make the terminal aperture that produces of dropper, go out adhesives by this aperture water conservancy diversion and use with the pin of taper; Behind the rolled aperture of the dropper of this container, be general common pin hole, can produce around the pin hole and stop up and curing; The adhesives that this pin hole inner edge has solidified is to be difficult for being rolled by pin logical, only the dropper tip is wiped out a bit of guiding adhesives and is used; This dropper tip wiped out a bit of after, it is a macropore that original aperture becomes, and causes extraneous air to import rapidly in the container, the adhesives in the container can produce polymerization in a short period of time and solidify, and can't continue to use.

The use of the adhesive guiding needle of known techniques generally is to be installed on point gum machine distribution pipe elder generation end, and this water conservancy diversion pin is made up of needle tubing and needle stand assembly, two ends of this needle tubing are all established and are flat mouthful shape, one end is plugged in the center of needle stand, and end is the body of suitable length in addition, is used for guiding out glue; The outer end of this needle stand is rotatably connected in the tip of point gum machine distribution pipe, reaches rationed some glue purpose by the control of point gum machine; The water conservancy diversion pin of this point gum machine is as being diverted to the container of adhesives, according to present adhesive container tip dropper, be not provided with any awl post hole of matching, and supply the through hole of viscose glue water conservancy diversion, this water conservancy diversion pin can't be suitable for or be used on the container of general cyanoacrylate adhesive.

The adhesive guiding needle of prior art, for the dropper that solves above-mentioned adhesive container is closed, no through hole can connect use for water conservancy diversion cushion, is angle so needle tubing one end of water conservancy diversion pin established, and this angle extends to the center, awl post hole of needle stand; When this water conservancy diversion cushion is connected to the container dropper, it is the microscler dropper tip that is plugged in adhesive container in the mode in tailor's cushion hole, this skill is disclosed in No. 81215092 patent application case in Taiwan, this water conservancy diversion pin utilizes the angle of needle tubing to roll microscler dropper tip center to adhesive container, and the adhesive guiding in the container is come out; On practice, though this water conservancy diversion pin rolls in adhesive container dropper tip with the angle of needle tubing, but the dropper tip of container is not as cooperating the awl post hole shape body of water conservancy diversion pin, this needle tubing angle rolls to be worn to dropper elder generation end, the outer rim of this dropper can't with the awl post hole driving fit of needle stand, the air of this external container is easily imported in the bottle by this place, causes dropper tip and needle tubing angle place to solidify; And this needle interior wall is a smooth unobstructive wall, and after adhesive guiding used, the inwall of this water conservancy diversion pin was subject to the curing of adhesives and stops up, and causes the water conservancy diversion pin not reuse.

Above-mentioned skill, existing Japanese manufacturer is made for an awl post with adhesive container elder generation end and cooperates the water conservancy diversion pin to use, utilize the needle tubing angle end of water conservancy diversion pin, be rolled into adhesive container elder generation end in tailor's cushion hole mode, the awl post of this container connects airtight for needle stand awl post hole, extremely brings in use outward by the adhesives in the needle tubing guiding container; The needle interior wall of this water conservancy diversion pin is straight smooth pipe, can supply the smooth and easy water conservancy diversion of adhesives; These commodity are instructed the user in leaflet, after adhesive guiding uses, need to be built-up in the needle tubing elder generation end of water conservancy diversion pin with saliva or water, allow saliva or water and adhesives produce polymerization and form a cured layer, block the interior cyanoacrylate adhesive of air and container and contact in needle tubing elder generation end; When reusing, need fully to heat towards the needle tubing tip by the flame of lighter, come the conducting cured layer with hot melting way, the adhesives in the container can be used by the water conservancy diversion needle guide once more.This skill is all led the user and how the needle tubing tip is made polymerizing curable processing and heating conducting technology; But often ignored for this indication, forget that needle tubing elder generation end needs to seal action, causes whole needle tubing of water conservancy diversion pin to solidify and comes the hot melt conducting by flame after adhesive guiding uses by the user.This is built-up in the flat mouthful port of needle tubing with saliva or water and produces polymerization by saliva and adhesives, before if the saliva of the flat mouthful port of needle tubing or water do not produce polymerization with adhesives, container is if be subjected to slight extruding, the thin layer that this saliva or water form in needle interior wall may be destroyed, and adhesives is sealed after producing polymerization.

In the inwall of needle tubing the wall that is smooth is set all at known water conservancy diversion pin, when the guiding adhesives uses, all need changes different needle tubing diameters and use, otherwise when capacity was big, this water conservancy diversion pin can produce the drip situation, wayward water conservancy diversion amount.

Its main purpose of the adhesive guiding needle that the invention provides, the needle tubing elder generation end that is this water conservancy diversion pin is provided with a polymerization curved surface, at water conservancy diversion needle guide cyanoacrylate adhesive to the needle tubing outside, utilize the adhesives of the polymerization curved surface meeting homing guidance needle tubing elder generation end of needle tubing elder generation end to be gathered in polymerization curved surface position, after using, adhesives covers the pin lid, the posthole of this sealing pad is for flat mouthful of end sealing of needle tubing, prevent that cyanoacrylate monomer from contacting with air, can continue the guiding adhesives when taking off the pin lid uses, when meeting sealing pad inefficacy of pin lid inner edge or loss, in addition produce polymerization and seal by the polymerization curved surface of needle tubing elder generation end, make cyanoacrylate adhesive and extraneous air in the container isolated, can not produce polymerization again and change, increase the holding time of adhesives; After the needle tubing elder generation end curing of this water conservancy diversion pin is sealed, can carry out hot melt via the flame of lighter and separate conducting, the adhesives in this container can reach using via the water conservancy diversion needle guide of repetition once again.

The adhesive guiding needle that the invention provides is a purpose secondly, be the polymerization curved surface that the needle tubing elder generation end of this water conservancy diversion pin is provided with, this polymerization curved surface is after the adhesives circulation, utilize the surface tension of the viscosity formation of adhesives, relative value with the glue binding force of adhesive ability between adhesives and needle interior wall and adhesives, in between the polymerization curved surface, produce and assemble, after pin covers, this sealing pad forms vacuum between the polymerization curved surface, this adhesives can be trapped in water conservancy diversion pin elder generation end position, makes the needle tubing tip remain with an amount of glue, and the glue of this needle tubing tip can not solidify in the short time, after taking off water conservancy diversion pin pin lid, renewable guiding adhesives uses; Vertical have the air of trace to infiltrate the sealing pad that pin covers inner edge, and the cyanoacrylate adhesive of this needle tubing tip can seal in port position with the micro-air polymerization.

It advances a purpose adhesive guiding needle that the invention provides, and is that this water conservancy diversion pin needle tubing elder generation default polymerization curved surface in end has the flow of control cyanoacrylate adhesive, and can assembles automatically and seal after the guiding adhesives uses; But this water conservancy diversion pin needle tubing elder generation end and the artificial mode of mat cover the pin lid after the needle tubing port of water conservancy diversion pin picks the micro-saliva or the globule, impel water conservancy diversion pin needle tubing port and to seal in short time generation curing.

Its purpose again of the adhesive guiding needle that the invention provides, be the polymerization curved surface of this water conservancy diversion pin tip, form by radial resistance curved surface, this each resistance curved surface is that the ball pearl with plural number applies pressure to the surface of needle tubing elder generation end, make needle interior wall produce ball pearl resistance point, tangent and become this resistance curved surface by the outer rim of the ball pearl resistance point of plural number; With suitable distance and ball diameter setting, limit its flow when the adhesive guiding between the ball pearl of this resistance curved surface resistance point, after water conservancy diversion uses, provide cyanoacrylate adhesive to be detained and be gathered in this polymerization curved surface position by this plural number ball pearl resistance point.

Its purpose again of the adhesive guiding needle that the invention provides, be the polymerization curved surface of this water conservancy diversion pin tip, be to form with the recessed curved surface of two symmetries, this each recessed curved surface is to be made by the body of rod press molding of symmetry, have a throat and a convergence that is flats between the recessed curved surface of this two symmetry and manage and exhalant, in order to restriction adhesive guiding use amount, and after the guiding adhesives uses, produce capillarity by flat throat position, be gathered in the flat throat position of this polymerization curved surface for adhesives.

Its another purpose of the adhesive guiding needle that the invention provides, the inner edge position that is this pin lid is preset with a sealing pad, the center of this sealing pad is provided with a posthole, the diameter of this posthole is less than the diameter of needle tubing tip, material by this sealing pad has telescopic resilience, is inserted in the posthole at flat mouthful of end of needle tubing, between flat mouthful of end of the posthole of this sealing pad and needle tubing, have the cyanoacrylate monomer of blocking and contact function, when taking off the pin lid, continue the guiding adhesives and use with air.

Illustrate as follows with regard to respective outer side edges of the present invention:

Fig. 1 is an exploded drawings of the present invention, shows water conservancy diversion pin and structure of container.

Fig. 2 is a section-drawing of the present invention, shows that water conservancy diversion cushion is connected on the container.

Fig. 3 is a section-drawing of the present invention, shows the composition structure of water conservancy diversion pin.

Fig. 4 is a section-drawing of the present invention, shows one of embodiment of water conservancy diversion pin tip polymerization curved-surface structure.

Fig. 5 is a section-drawing of the present invention, is the section-drawing of the 5-5 of Fig. 4.

Fig. 6 is a section-drawing of the present invention, is the section-drawing of the 6-6 of Fig. 4.

Fig. 7 is a section-drawing of the present invention, two of the section of demonstration water conservancy diversion pin tip polymerization curved-surface structure.

Fig. 8 is a section-drawing of the present invention, the polymerization surface chart of displayed map 7.

Fig. 9 is a section-drawing of the present invention, is the lateral plan of Fig. 8.

Figure 10 is a section-drawing of the present invention, is the section-drawing of the 10-10 of Fig. 9.

See also Fig. 1 and 2, cooperate cyanoacrylate adhesive filling that the present invention uses in a container 29, this container 29 is subjected to an end plug 32 pressings after by an amount of adhesives of pack hole 31 fillings, and adhesives is packaged in the specific container 29.This container 29 is made for the best with polypropylene (Poly-pro-pylene) material through extrusion molding, but also mining height density polyethylene (Poly (hylene).These end plug 32, one ends that are pressed on container 29 pack holes 31 are established and are tubing string 40 and enclosing cover 33, and end is established and is awl post 36 in addition; This end plug 32 is pressed in the pack hole 31 of container 29 by tubing string 40, and enclosing cover 33 is placed in the outer wall position of pack hole 31; This end plug 32 is a closed in awl styletable face 37, can obtain good storage for adhesives, is produced during for needle stand 20 sockets of a water conservancy diversion pin 10 by the awl post 36 of end plug 32 outer rims during use and rolls the hole conducting, and the adhesivess in the guiding container 29 use.

See also Fig. 1 to Fig. 3, this water conservancy diversion pin 10 mainly is made up of needle tubing 11, needle stand 20, pin lid 18, sealing pad 19 and guide pin bushing 14, and wherein these needle stand 20 1 end centers are provided with the awl post hole 21 that extends internally, and the end center is provided with commissure 25 and guide hole 24 in addition; The awl post hole 21 of this needle stand 20 cooperates the awl post 36 of container 29 end plugs 32 to be provided with, and the guide hole 24 of this needle stand 20 places for needle tubing 11, fixes as one with adhesives 26 between these guide hole 24 commissures 25 and needle tubing 11 outer walls; This needle tubing 11 is a columniform stainless steel tube, with regard to medical gauge with 19 ^#Needle tubing the most suitable, the external diameter of this corrosion-resistant steel needle tubing is 1.07 centimetres, the thickness of pipe is 0.15 centimetre, these needle tubing 11 1 ends are flat mouthful of end 12, end is angle 17 in addition; Flat mouthful of end 12 of this needle tubing 11 is positioned at the outer end of water conservancy diversion pin 10, and flat mouthful of end 12 to 20 of needle stand has a suitable length; The angle 17 of this needle tubing 11 is positioned at the middle position in needle stand 20 awl post holes 21, and this angle 17 is set to the best with the gradient of 30 to 45 degree.When needle tubing 11 is pegged graft with container 29, awl post hole 21 covers of needle stand 20 are inserted on the awl post 36 of container 29 end plugs 32, utilize needle tubing 11 angles 17 ends at needle stand 20 awl 21 centers, post hole, be rolled into the awl styletable face 37 of end plug 32 in the tailor's cushion mode, make the angle 17 of needle tubing 11 be rolled into end plug 32 inside, use by the adhesives in the needle tubing 11 guiding containers 29.

After this water conservancy diversion pin 10 is plugged in container 29 end plugs 32, for preventing that the cyanoacrylate monomer in the container 29 from contacting with air, cause the adhesives in the container 29 to produce polymerizing curable, so be socketed with pin lid 18 in the outer end of water conservancy diversion pin 10, this pin lid 18 is preset with a sealing pad 19 and guide pin bushing 14 in inner edge, and this guide pin bushing 14 is positioned at the outer end of sealing pad 19, and guide pin bushing 14 centers are provided with a conical through-hole 23, when this conical through-hole 23 combined with pin lid 18 for water conservancy diversion pin 10, the center was easy to correcting; This sealing pad 19 is preset with a posthole 27 in the center, cover pin lid 18 after adhesives guiding is used, and utilizes the posthole 27 of sealing pad 19 to peg graft for 11 flat mouthfuls of ends of needle tubing 12 and seal; Cover and to continue to guide adhesives at 18 o'clock and use taking off pin; If meet that sealing effect that pin covers 18 inner edge sealing pads 19 lost efficacy or pin lid 18 when losing, this water conservancy diversion pin 10 can be by the default polymerization curved surface 16 in needle tubing elder generation end 13, and the adhesives in the guiding needle tubing is assembled the back and produced polymerization and seal.

This is covered on the enclosing cover 18 of needle tubing 11 outer rims, if be long column female cap body, be equipped with a sealing pad 19 and a guide pin bushing 14 in interior acies, this sealing pad 19 has suitable elasticity, can not make with the material that cyanoacrylate adhesive produces polymerization, this material is the best with silicone rubber (SiliconRubber), selects for use compression molding (Compression Molding) to make, and the Durometer hardness number of this sealing pad 19 is 60 the bests; This sealing pad 19 covers 18 port centers toward pin and is provided with a posthole 27, this posthole 27 has a degree of depth, diameter is less than the diameter of needle tubing 11 tips, material by this sealing pad 19 has elasticity, hold 12 to be inserted in the posthole 27 for flat mouthful in needle tubing, it is airtight that this sealing pad 19 utilizes its elasticity to produce for flat mouthful of end of needle tubing 12 insertion backs, and the cyanoacrylate monomer that blocks needle tubing elder generation end 13 contacts with air, after taking off pin lid 18 once more, the adhesives in the container 29 can continue guiding to be used.

These guide pin bushing 14 quilts are by the outer rim that places sealing pad 19, this guide pin bushing 14 has a cylindroid 15 and plural rib 22 in outer rim, central authorities are provided with conical through-hole 23, and 15 of the outer edge of this conical through-hole 23 and cylindroids are the end face of a thin type, and inner edge is one to be slightly larger than the through hole of sealing pad 19 postholes 27; The outside of this guide pin bushing 14 is covered between 18 inwalls to compel the mode of closing by plural rib 22 and pin and is fixedly arranged on the outer end position of sealing pad 19, is directed in the posthole 27 of sealing pad 19 by this conical through-hole 23 correcting needle tubings elder generation end 13, can not produce the deflection situation.

See also Fig. 3 to Fig. 6, this water conservancy diversion pin 10 is preset with polymerization curved surface 16 in needle tubing elder generation end 13, when the adhesives supply is provided, can not produce any drip situation, reach when using and can and not establish in needle tubing elder generation end 13 generation congregation, has suitable viscosity by cyanoacrylate adhesive, and possess hydrophilic property between water conservancy diversion pin 10 needle interior walls, and be subjected under the small distance in binder liq surface, each molecule can be attracted each other, the intermolecular binding force of binder liq forms the characteristic of gathering, produces and is detained and capillarity; This water conservancy diversion pin 10 as does not cover pin lid 18 after the guiding adhesives uses, this adhesives can produce at the polymerization curved surface 16 of needle tubing elder generation end 13 to be assembled, and forms after polymerization and seals, and blocks container 29 interior cyanoacrylate adhesives and contacts with extraneous air.This water conservancy diversion pin 10 covers pin lid 18 as after using at the guiding adhesives, more can bring into play and block the chance that container 29 in-to-in adhesivess contact with air, and can guide adhesives and use after pulling out pin lid 18.

The polymerization curved surface 16 of this water conservancy diversion pin 10 needle tubings elder generation end 13, extremely shown in Figure 6 as Fig. 4, be that needle tubing 11 with water conservancy diversion pin 10 is the center, be radiation direction and respectively be provided with mutual cooresponding resistance curved surface 43, when this needle tubing 11 is made into resistance curved surface 43, impose on the surface of needle tubing elder generation end 13 with the ball pearl of plural number, allow needle interior wall have the ball pearl resistance point 44 of plural number, tangent and become this resistance curved surface 43 by the outer rim of the ball pearl of plural number resistance point 44, be regularly arranged setting with suitable diameter and spacing between the ball pearl resistance point of this resistance curved surface 43, this resistance curved surface 43 is a maximum with the diameter that the ball pearl that is positioned at central authorities hinders point 45, makes the cross section of pipe present minimum.This adhesives is subjected to the flow conservation effect that fluid flows in stream tube when ball pearl resistance point 45 positions of the resistance curved surface 43 of flowing through, adhesives has been subjected to constraint, the discharge of restriction adhesives.The resistance curved surface 43 that this is arranged radially applies pressure to needle tubing elder generation end in each resistance curved surface 43 that vertically is provided with by plural ball pearl and is produced; When this adhesives uses through 10 guidings of water conservancy diversion pin, be the formed backflow of negative pressure at container 29, the part adhesives of needle tubing elder generation end 13 can be sucked back in the container 29, because of ball pearl resistance point 45 positions are a minimum cross section, the adhesives in this cross section of flowing through is subjected to the viscosity influence of jelly, can't be when container 29 equilibrium of pressures in all sucked back container 29; This is stranded in the adhesives of resistance curved surface 43 walls, because of cyanoacrylate adhesive has suitable viscosity, and possess hydrophilic property between water conservancy diversion pin 10 needle interior walls, and be subjected under the small distance in binder liq surface, each molecule can be attracted each other, the intermolecular binding force of binder liq forms to be assembled, and produces after polymerization and seals.

The polymerization curved surface 16 of this water conservancy diversion pin 10 needle tubings elder generation end 13, extremely shown in Figure 10 as Fig. 7, be with in the symmetrical position of needle tubing elder generation end 13, apply pressure to the surface of needle tubing 11 with the disymmetrical circular-arc body of rod, make it have disymmetrical recessed curved surface 41 stream pipes, this stream pipe is that a throat 50, two ends are respectively convergence pipe 51 and exhalant 52 in middle position, this stream pipe is positioned at the flat body 42 that throat 50 positions are a wide arcuation, and the cross section is minimum; Exert pressure when allowing adhesive guiding use at container 29, as when exerting pressure greater than barometric pressure, adhesives can be directed to the outside via water conservancy diversion pin 10; This adhesives is subjected to the flow conservation effect that adhesives flows in stream tube when flowing through the throat 50 of recessed curved surface 41, adhesives has been subjected to constraint, the discharge of restriction adhesives; After adhesive guiding uses, pressure at container 29 disappears, form a negative pressure (less than a barometric pressure) in the container 29, during the sucked back container 29 of the adhesives of adhesive end 13 needle interior walls of this needle tubing elder generation end 13, because of throat 50 is a minimum cross section, the adhesives in this cross section of flowing through is subjected to the viscosity influence of jelly, can't be when container 29 equilibrium of pressures in all sucked back convergence pipe 51; This is stranded in the adhesives of exhalant 52 walls, because of cyanoacrylate adhesive has suitable viscosity, and possess hydrophilic property between water conservancy diversion pin 10 needle interior walls, and be subjected under the small distance in binder liq surface, each molecule can be attracted each other, and the intermolecular binding force of binder liq forms to be assembled; Residue in the adhesives of needle tubing elder generation end, the throat 50 that is positioned at the recessed curved surface 41 of symmetry is needle tubing 11 minimum circulation sectional positions, and this adhesives can produce delay and capillarity in these recessed curved surface 41 positions and assemble, and seals in solidifying back formation one.

With regard to water conservancy diversion pin 10 of the present invention, be preset with polymerization curved surface 16 in needle tubing elder generation end 13, utilize actual internal area to limit the supply flow of water conservancy diversion pin 10, produce the drip situation when preventing the adhesives use in the container 29; Adhesives in container 29 is after water conservancy diversion pin 10 guiding is used, and this needle tubing elder generation end 13 is with default polymerization curved surface 16, and short adhesives forms and is detained and assembles, and at room temperature need not add catalyst, and can and seal in first end 13 polymerizations of needle tubing after air contact; This water conservancy diversion pin 10 is as after using at the guiding adhesives, cover with a pin lid 18 that is preset with sealing pad 19, this sealing pad 19 is held 12 one-tenth one closeds with the flat mouth of needle tubing elder generation end 13, blocks adhesives and contacts with air, takes off and can continue to use after water conservancy diversion pin 10 pins cover 18.

Said structure, adopt coefficient of viscosity at the cyanoacrylate adhesive of 0.5 to 1.0 pool (poise, 1 pose=100 cps.) as experimental basis, experiment back can reach the usefulness of expection really the time.

The present invention is illustrated respectively by the foregoing description, and the feature and the structural relation of complete announcement invention are fully different with conventional construction, have the creativeness of height.

Claims

1, a kind of adhesive guiding needle structure includes:

One needle stand is provided with the awl post hole that extends internally in an end center, the end center is provided with commissure and guide hole in addition, and the commissure of this needle stand and guide hole place for needle tubing, are adhesively fixed with adhesives;

One needle tubing, an end is flat mouthful of end, end is angle in addition, should hold the outer end that is positioned at needle stand by flat mouth, flat mouth is held to needle stand a length, is provided with one in needle tubing elder generation end and can produces the polymerization curved surface of assembling after using for the cyanoacrylate adhesive guiding, and this inclined-plane is positioned at the middle position that needle stand is bored the post hole;

One pin lid is a long column female cap body, is equipped with a sealing pad in the inner edge bottom, and pin cover gab end is covered on the outer edge of needle stand;

One sealing pad can not make column with the material that cyanoacrylate adhesive produces polymerization, is fixedly arranged on the inner edge bottom of pin lid, is provided with a posthole towards the center of pin cover gab direction, and pegging graft for the flat mouthful of end in needle tubing elder generation end is driving fit;

One guide pin bushing is provided with cylindroid and plural rib in outer rim, and the center is provided with conical through-hole, is the end face of a thin type between the outer edge of this conical through-hole and cylindroid, compels to close the sealing pad outer fringe position that is fixedly arranged in the pin lid by outer rim plural number rib.

2, adhesive guiding needle structure according to claim 1, it is characterized in that the sealing pad that this pin lid inner edge is nested with, can not be made for column with the silicone rubber material that cyanoacrylate adhesive produces polymerization, center toward pin cover gab direction is provided with a posthole, this posthole has a degree of depth, diameter is slightly less than the diameter of needle tubing tip, is inserted in for flat mouthful of end of needle tubing by the elasticity of material to produce airtightly in the posthole, and the cyanoacrylate monomer that blocks in the needle tubing contacts with air.

3, adhesive guiding needle structure according to claim 1, the needle tubing that it is characterized in that this water conservancy diversion pin is to be provided with the polymerization curved surface of being made up of plural resistance curved surface in needle tubing elder generation end, this plural resistance curved surface in the needle tubing longitudinal direction with radial symmetrical arrangement, this each resistance curved surface is by the tangent curved surface that forms of outer rim of plural ball resistance point, the diameter that is positioned at the ball pearl resistance point of central authorities is maximum, the cross section is minimum stream pipe, and two sides respectively are the ball pearl resistance point than minor diameter.

4, adhesive guiding needle structure according to claim 1, the needle tubing that it is characterized in that this water conservancy diversion pin, be to be provided with the polymerization curved surface of forming by the recessed curved surface of two symmetries in needle tubing elder generation end, should recessed curved surface be vertically and be symmetrical arranged, the flat body that is a wide arc in needle tubing elder generation end, the stream pipe central authorities that are positioned at flat body are the throat of sectional area minimum, and the outer end is the outward extending exhalant of flat curved surface, and the inner is the convergence pipe of flat surface extension.