CN109869387A - A kind of connection inserted link, jointing device and prestressing force prefabricated component - Google Patents

Abstract

This invention address that it is simple to develop a kind of structure, it is connected firmly, connection inserted link easy for installation, jointing device and the prestressing force prefabricated component for using above-mentioned jointing, including the body of rod, the body of rod includes interconnecting piece and plug division, the end of plug division is provided with the clamping joint that limit cooperation is formed with external button cylinder, one end of clamping joint is equipped with guide surface, the guide surface is at least partially cambered surface, the one end for wherein detaining cylinder is provided at least two panels chuck, it is inserted into for clamping joint and forms clamping engagement, upper prestressing force prefabricated component, multiple jointing devices are equably correspondingly arranged between lower prestress prefabricated component, guide part of the present invention is arc surface, the contact surface of itself and button cylinder chuck is disc, contact surface is without dead angle when guiding, it will not be stuck, guarantee bolt grafting in place, to improve pile body connection reliability.

Description

A kind of connection inserted link, jointing device and prestressing force prefabricated component

The application is the division Shen that invention and created name is " a kind of to connect inserted link, jointing device and prestressing force prefabricated component " Please, the applying date are as follows: 2017-12-04, application No. is: 2017112625178.

Technical field

The present invention relates to building connector technical field more particularly to a kind of connection inserted link, jointing device and comprising The prestressing force prefabricated component of the jointing device.

Background technique

Currently, be used for the prefabricated pile of building foundation anti-pulling engineering, carried out in the form of most of welding using end plate stake and The connection of stake.Since this connection type belongs to electric welding, because personnel's weld horizontal is irregular, it is understood that there may be certain peace Full hidden danger, influences construction quality.For this purpose, many inventors improve the connection type of stake to end-plate-free direction.

For example, the Patent No. " ZL200810060180.7 " of the applicant, entitled " cutting-free fast tearing is to buckle The Chinese patent of part and interfacing part " just uses a kind of end-plate-free structure, it includes rising that nut, top is drawn to draw nut, rises and draws nut Drawing nut with top is internal thread structure, and top draws in nut and is provided with the taper sheath, gasket, spring, upsetting being made of two panels or multi-disc Head, screw thread set.This connection type can solve the problems, such as that welding exists, and it is quick, reliable right between prefabricated component and prefabricated component to realize It connects.But the patent limits by the way of multi-disc taper sheath to be connected firmly, and needs multi-disc taper sheath when installation It is all mounted on a specific purpose tool and just can be carried out subsequent action, Shortcomings in terms of operation convenience.

For another example, Patent No. " ZL201720161153.3 ", entitled " a kind of jointing device " Chinese patent Using end-plate-free structure.The taper sheath one that the patent is constituted gasket and two panels or multi-disc on the basis of foregoing invention Change, disclosed button cylinder includes cyclic annular collet, circumferentially spaced on the collet to be provided with multiple cards with buckle function Structure.On this basis, which is also disclosed a kind of jointing device comprising bottom cylinder and top cylinder, the inner cavity of the bottom cylinder Setting has elastic component, and the elastic element is resisted against the intracavity bottom of bottom cylinder, and the upper surface of described elastic element is provided with described Button cylinder, it is described button cylinder collet be set to above elastic element, it is described button cylinder multiple card mechanisms above be provided with it is hollow Lock cylinder, the lock cylinder is fixed on the inner cavity of bottom cylinder, and the button cylinder is resisted against the lower end of lock cylinder, and the inner cavity of the top cylinder is fixed with Bolt, passing through to be snapped in buckle after lock cylinder by bolt between the top cylinder and bottom cylinder makes two on the inner cavity that multiple cards of cylinder surround Person links together.

Gasket and taper sheath are integrated formula and buckle cylinder by the patent, are operated more convenient.But due to button cylinder Deformation is weaker than split type taper sheath, it is therefore desirable to adaptively improve bolt, otherwise bolt enters meeting relative difficulty when buckleing cylinder.Tool Body, which is clamped with the card form chuck for buckleing cylinder, and the guide part of bolt is straight cut, and guiding role is not enough managed Think, bolt may be stuck with chuck in insertion process, prevent part bolt from grafting in place, it is reliable thus to influence pile body connection Degree causes resistance to plucking tensile capacity to decline.

In addition to prefabricated pile, there is also similar problems for other similar prefabricated components.The present inventor is existing many thus It further researches and develops and tests on the basis of technology, strive making that a structure is simple, stablizes, is connected firmly, company easy for installation Connect piecing devices.

Summary of the invention

The present invention is based on above-mentioned technical problem, it is dedicated to developing that a kind of structure is simple, is connected firmly, connection easy for installation Piecing devices.

To achieve the goals above, the present invention provides a kind of connection inserted link, including the body of rod, and the body of rod includes interconnecting piece and grafting Portion, the end of plug division are provided with the clamping joint that limit cooperation is formed with external button cylinder, and wherein clamping joint is close to interconnecting piece One end is provided with the confined planes of clamping button cylinder, and clamping joint is provided with guide surface far from one end of interconnecting piece, and the guide surface is at least Part is cambered surface.

Further guide surface include it is multiple make the body of rod up-small and down-big and not in the cambered surface of same circumference, in leading for cambered surface To face connection inserted link is smoothly formed to be engaged by clamping with button cylinder, avoiding straight cut causes to connect inserted link and detain cylinder It is stuck.

Plug division is equipped with the limiting slot for accommodating and being formed with the button cylinder of outside limit cooperation, close card on limiting slot One end of connector forms confined planes.

The body of rod includes stub end and small head end: connecting portion which is provided with screw thread in stub end；Plugging position is in microcephaly End, to extend gradually smaller bullet from interconnecting piece, plug division sets gradually limiting slot and guide surface, and guide surface is for making Body of rod microcephaly holds sliding support level with both hands and opens chuck, and the limiting slot includes the confined planes that at least one is used to cooperate with chuck.

One end on limiting slot close to clamping joint forms multistage confined planes.

Limiting slot is rectangular channel or dovetail groove.

The interconnecting piece and the binding site of plug division are equipped with the limited step for being raised in plug division main body, the limiting stand Rank limits the insertion depth of plug division.

Specifically, it from small head end to stub end, sets gradually as plug division, limited step, interconnecting piece.

It further, further include the portion of being loaded on the body of rod, the portion of being loaded is used to be engaged by clamping with clamping tool, and the portion of being loaded is logical It crosses card access surface and clamping tool is engaged by clamping, the portion that is loaded is non-circular perpendicular to the section of plug division axis.

The portion that is loaded is polygon perpendicular to the section of plug division axis.

The portion that is loaded is polygon perpendicular to the section of plug division axis.

The portion that is loaded is straightway perpendicular at least two sections of contour line of the section of plug division axis.

Another technical solution of the invention is a kind of jointing device, including button cylinder and the connection inserted link, wherein One end of button cylinder is provided at least two panels chuck, and the clamping joint for connecting inserted link is inserted into and forms clamping engagement.

The button cylinder is equipped with the second guide surface with the first contact portion for connecting inserted link.

The button cylinder includes the chuck that multi-disc on cylinder and cylinder has buckle function, and multi-disc chuck circumferentially uniform Every setting.

The cylinder includes collet and connection sheet, and the chuck is connect with collet by connection sheet, and the connection sheet is bullet Property piece.

The invention also includes big nut, primary nut, intermediate nut and pressure springs, and intermediate nut, button cylinder and pressure spring are successively Loaded in big nut, connection inserted link is fixedly connected loaded on primary nut, the bottom of the big nut and primary nut be equipped with for Muscle hole is worn in the clamping of reinforcing bar pier nose, is screwed on the primary nut and is connected inserted link, i.e. the interconnecting piece of connection inserted link is screwed on primary nut, The big nut inner cavity is equipped with elastic element and chuck, and intermediate nut is screwed in big nut and positions shifting in chuck, During jointing device combines configuration, the plug division of the connection inserted link penetrates intermediate nut, and the guide surface smoothly opens Chuck simultaneously promotes chuck compression elastic element to be allowed to shrink, until spring element returns and chuck and limiting slot are engaged by clamping.

The inner cavity of the intermediate nut is to connect the gradually smaller conical cavity of inserted link direction of insertion certainly, the intermediate nut Inner cavity surface is bonded with inserted link is connect.

The tail end of the intermediate nut is equipped with department of assembly, and the mating surface of the department of assembly and assembly tool is positioned at middle screw The non-disc of female inner cavity and/or periphery.

The tail end of the intermediate nut is provided with intermediate nut fillet surface, limited step setting and intermediate nut on the body of rod The even transition of fillet surface cooperation.

Preferably, intermediate nut and one end inner wall that chuck supports positioning surface and stop surface that have gradient different, institute It states positioning surface and constitutes positioning chamber, the stop surface constitutes stop bit chamber, and the chuck is adjacent to positioning surface under the action of elastic element, When chuck moves to stop bit cavity direction along the inner wall of positioning chamber and touches stop bit chamber, the stop bit chamber can prevent chuck Movement is to prevent chuck from skidding off positioning chamber.

There is angle between the positioning surface and stop surface and angle is obtuse angle.

Preferably, the button cylinder include on collet and collet circumferentially uniform intervals be provided with it is multiple have buckle function Chuck, the chuck are connect with collet by card, and the collet, card, chuck are structure as a whole.

Further, the cylinder periphery is equipped with screw thread, and the chuck is radially shunk to axis direction.

The cylinder of the button cylinder and the periphery of chuck have radial drop, and the diameter of the cylinder is greater than the straight of the chuck Diameter.

The tail end of the cylinder be equipped with clamping face, the clamping face be set to cylinder inner cavity and/or non-disc.

The tail end of the cylinder is equipped with the second fillet surface, and the limited step on the body of rod is provided with and the cooperation of the second fillet surface Even transition.

Jointing device of the invention further includes big nut, primary nut and buckles cylinder, the button cylinder chuck inwardly and with it is big Nut is fixedly connected, and connection inserted link is fixedly connected loaded on primary nut.

The invention also discloses a kind of prestressing force prefabricated components, which is characterized in that including upper prestressing force prefabricated component, lower prestress Prefabricated component and the jointing device of prestressing force prefabricated component, the connection are connect under for connecting the upper prestressing force prefabricated component Piecing devices are jointing device described in any of the above-described claim, wherein several longitudinal directions in prestressing force prefabricated component Reinforcing bar and transverse steel constitute prefabricated component framework of steel reinforcement, and the prefabricated component both ends, which respectively correspond, is equipped with big nut and primary nut, institute Big nut and primary nut is stated to be clamped with the longitudinal reinforcement main reinforcement after pier nose respectively by wearing muscle hole.

Multiple jointing dresses are equably correspondingly arranged between the upper prestressing force prefabricated component, lower prestress prefabricated component It sets.

Compared with the background technology, the present invention, the guide part of inserted link of the invention is arc surface, with the contact of button cylinder chuck Face is disc, and contact surface, will not be stuck without dead angle when guiding, guarantees bolt grafting in place, to improve pile body connection reliability, keeps away Exempt from the decline of resistance to plucking tensile capacity while also avoiding that inserted link backfin chuck or inserted link shock chuck is caused to lead to card because unsmooth Platform deforms and connects not close unstable problem.

In addition, present invention further progress optimization on this basis, can also obtain several effects, such as:

(1) the high large-scale component of the big weight of volume such for prefabricated component, the internal stability connected are even more important, the present invention Intermediate nut is bonded configuration with the inserted link of bullet, agrees with slot in intermediate nut in addition and connects the contract of the transition shoulder on inserted link It closes, on the one hand jointing is integrated into a whole, eliminates the gap inside connector, bring what tightness was played On the other hand benefit has dispersed the position of stress, become all face contacts from line contact, enhance life of product and product Stability.

(2) multiple confined planes of limiting slot form multistage support, enlarged contact areas and dispersion stress point and rectangle or The structure of trapezoidal or terrace confined planes can be prevented more effectively to improve the anti-tensile pulling force of connection inserted link and chuck Connection inserted link is pulled.

(3) the stop bit chamber of intermediate nut is able to cooperate inserted link and forms firm triangulation location to chuck, prevents chuck to be detached from fixed Position chamber, keeps jointing grafting process reliable and stable.

(4) setting in the portion of the invention that is loaded changes the structure of original fluting assembly, becomes circumferential clamping assembly, avoids The problem of fluting is to open-minded installation opening is beaten in the destruction and assembly of rigidity part stress.

Detailed description of the invention

Fig. 1 is one structural schematic diagram of embodiment of present invention connection inserted link；

Fig. 2 is another schematic cross-sectional view of present invention connection inserted link；

Fig. 3 is the another schematic cross-sectional view of present invention connection inserted link；

Fig. 4 is two structural schematic diagram of embodiment of jointing device of the present invention；

Fig. 5 is the intermediate nut structural schematic diagram of jointing device of the present invention；

Fig. 6 buckles barrel structure schematic diagram for jointing device of the present invention；

Fig. 7 is the connection hinge pedestal structure schematic diagram of the embodiment of the present invention 4；

Fig. 8 is the structural schematic diagram of the jointing device of the embodiment of the present invention 4.

Specific embodiment

The present invention is illustrated below according to attached drawing illustrated embodiment.This time disclosed embodiment can consider in all sides Face is to illustrate, without limitation.The scope of the present invention is not illustrated to be limited by following implementation, only by claims Shown in range, and including having all deformations in the same meaning and scope of the claims with scope of the claims.

Illustrate that the present invention will be further described in detail combined with specific embodiments below.

Embodiment 1

One structural schematic diagram of embodiment of present invention connection inserted link as shown in Figure 1, a kind of connection inserted link, including the body of rod 1, the body of rod 1 includes interconnecting piece 2 and plug division 3, and the end of plug division 3 is provided with the clamping joint that limit cooperation is formed with external button cylinder, Middle clamping joint is provided with the confined planes 61 of clamping button cylinder close to one end of interconnecting piece, and clamping joint is provided with far from one end of interconnecting piece Guide surface 4, the guide surface 4 at least part be cambered surface, interconnecting piece 2 be equipped with screw thread, plug division 3 be from interconnecting piece 2 extend by The end of the small bullet of gradual change and plug division 3 is equipped with arc-shaped guide surface 4, it is to be appreciated that connection inserted link can also be with For cylindrical body or other regular polygon bodies, the limiting slot for accommodating and being formed with chuck limit cooperation is additionally provided on plug division 3 6, the binding site of the interconnecting piece 2 and plug division 3 is equipped with the limited step 5 for being raised in 3 main body of plug division, the limited step The insertion depth of 5 pairs of plug divisions 3 limits, since plug division 3 is to extend gradually smaller bullet from interconnecting piece 2 to make bar Body 1 forms stub end and small head end, sets gradually as interconnecting piece 2, limited step 5, plug division 3, and interconnecting piece 2 is set to stub end, It which is provided with screw thread, plug division 3 sets gradually limiting slot 6 and guide surface 4, and guide surface 4 is opened for making body of rod microcephaly hold sliding support level with both hands Chuck.

Guide surface 4 makes the body of rod up-small and down-big and (does not embody in figure) in the cambered surface of different peripheries including multiple, is oriented to Face 4 is made of the different circular arc of multiple radians can be divided into multistage for guiding role, and to adapt to different chuck, it is existing that no replacement is required There is chuck, improve the suitability of connection inserted link, economic value is very big；And it after guide surface 4 is classified, is being connected between every section of circular arc The buffer area of a section power is formed in inserted link insertion process, is conducive to connection inserted link in this way and is more accurately completed to dock.

Limiting slot 6 includes that at least one is used for confined planes 61 for cooperate with chuck, and radial recess is to form on the body of rod 1 The engaging portion of limiting slot 6, limiting slot 6 and chuck mutually coincide in shape, when the confined planes 61 are inclined-plane, in the body of rod At vee gutter on 1.

It further include the portion of being loaded 7 on the body of rod 1 in the present embodiment, the portion 7 that is loaded is clamped by card access surface 71 and clamping tool Cooperation, the card access surface 71 include at least one non-circular face, and the specific location of card access surface 71, which can according to need, to be arranged in bar On multiple positions of body 1, such as:

When installation tool is polygonal telescopic, the portion 7 that is loaded can be raised in plug division 3, be arranged on limited step 5, be loaded Portion 7 perpendicular to plug division axis section be polygon, it will be understood by those skilled in the art that it is described be loaded portion perpendicular to The section of plug division axis can block drive connection inserted link for non-circular other and move synchronously.

As shown in Fig. 2, when the portion of being loaded 7 is set on plug division 3, be loaded portion perpendicular to the section of plug division axis wheel At least two sections of profile are straightway, it is to be appreciated that the portion 7 that is loaded is that the lower concave plane for being set to plug division 3 or cutting are stood Face, lower concave plane or cutting facade are two, and symmetrical setting is in plug division two sides, it is also conceivable that the portion of being loaded is grafting The slot of turning in portion.

In order to enhance limiting slot 6 and detain the limit cooperation suitability and raising resistance to plucking tensile strength of cylinder, a kind of limit is devised Position slot structure, limiting slot 6 are rectangular channel or dovetail groove, can be cooperated with the button cylinder with rectangle or trapezoidal chuck, guide surface 4 is So that the circular arc conical surface that the body of rod is up-small and down-big.

As shown in figure 3, with the increase of confined planes 61, limiting slot 61 is presented as that serrated slot or step are progressive on the body of rod Slot can not only play position-limiting action wherein preferably scheme is the progressive slot of step, during the body of rod 1 combines configuration, due to Its progressive structure, any step can form limit cooperation with chuck, play buffering and adjustment effect, that is, connect the position of inserted link Set since the influence of site operation environment could possibly be higher than or lower than theoretical assembly position, be easy so that joint connection formed it is non-complete Full cooperation, so as to cause connecting not close or loosening, breakout capacity is insufficient, and the progressive limiting slot of step can be to the body of rod It is complete limit that multistage limit, which is formed, with merging, and has greatly reinforced the stability of jointing.

The connection inserted link more many places refinement adjustment in overall structure, such as limited step 5, be loaded portion 7, limiting slot 6 Deng for pulling capacity at 5 tons or more, improvement of the invention is multiple to stress point for the prefabricated component heavy to bulky exception The improvement that good result is played after inspection, due to the characteristic of prefabricated component or stake determine its once connection it is buried in underground or building In object, therefore the service life to connector, stability and tensile strength have very high requirement, this improvement is meant to ensure that tensile strength In the case where further increase the service life and its suitability and stability of connection inserted link.

Embodiment 2

The structural schematic diagram of jointing device of the present invention as shown in Figure 4, connection inserted link is using company shown in Fig. 2 in the present embodiment Bar is patched, is supplied including button cylinder 105 and the connection inserted link wherein one end of button cylinder 105 is provided at least two panels chuck 152 The clamping joint of connection inserted link is inserted into and is formed clamping engagement, and the button cylinder 105 is equipped with second with the first contact portion for connecting inserted link Guide surface 40, chuck 152 of the button cylinder 105 including the multi-disc on cylinder and cylinder with buckle function, multi-disc chuck 152 weeks To uniform interval setting, cylinder described in the present embodiment includes collet 151 and connection sheet 153, the chuck 152 and collet 151 are connected by connection sheet 153, and the connection sheet 153 is elastic piece, have flexible deformation, the in this way circular arc on connection inserted link The limiting slot 6 of shape guide surface 4 and rectangle both realized smooth connection avoid it is stuck, further through rectangle limiting slot enhance resistance to plucking tension Intensity.

The invention also includes big nut 101, primary nut 102, intermediate nuts 103, in prefabricated component connection procedure, prefabricated component After longitudinal reinforcement main reinforcement 11 on framework of steel reinforcement in part is each passed through the bottom hole Chuan Jin 109 of big nut 101, primary nut 102 Pier nose, reinforcing bar pier nose are connected and fixed with muscle hole 109 is worn, and connection inserted link is screwed on primary nut 102, and 101 inner cavity of big nut is equipped with bullet Property element 104 and buckle cylinder 105, button cylinder 105 is held on the top of elastic element 104, and intermediate nut 103 is screwed in big nut 101 and will detain Cylinder 105 on shift positioning, elastic element 104 be pressure spring, or rubber, circlip, elastic slice etc. other with reset function Spring element, during jointing device combines configuration, the clamping joint of the body of rod 1 passes through intermediate nut 103, along button cylinder 105 or 1 either component of the body of rod on guide surface smoothly open button cylinder 105 and promoting and buckle the compression elastic element 104 of cylinder 105 and be allowed to It shrinks, until elastic element 104 resets and detain cylinder 105 and limiting slot 6 is engaged by clamping.

Big nut 101,102 shape of primary nut are cylindrical body in the present embodiment, it should be understood by those skilled in the art that Be big nut 101, primary nut 102 shape can be extend outside polygon, triangle or ellipse etc. or even nut it is useful In fixed or rotation stop tooth or dentation chuck in the scope of the present invention.

Preferably, the button cylinder 105 includes that circumferentially uniform intervals are provided with and multiple have on collet 151 and collet 151 Buckle the chuck 152 of function, the chuck 152 and collet 151 pass through card 153 and connect, the collet 151, connection sheet 153, Chuck 152 can be structure as a whole, wherein be divided into rectangle or inverted T-shaped or water-drop-shaped etc. between chuck 152, certainly, detain cylinder Collet 151, connection sheet 153 on 103, chuck 152 can be made as split type.

As shown in figure 5, intermediate nut 103 and one end inner wall for supporting of button cylinder have the different positioning surface 113 of gradient and Stop surface 123 has the obtuse angle that angle ∠ a and angle ∠ a are 120 ° -160 °, positioning between positioning surface 113 and stop surface 123 Face 113 and stop surface 123 form stable triangle position limiting structure, and the positioning surface 113 constitutes positioning chamber, and stop surface 123 is constituted Stop bit chamber, wherein positioning chamber is circular conical surface chamber, and the position that supports of the button cylinder and intermediate nut is the conical surface, the button cylinder 105 It is adjacent to positioning surface 113 under the action of elastic element 104, when button cylinder 105 is moved along the inner wall of positioning chamber to stop bit cavity direction And when touching stop bit chamber, the stop bit chamber can prevent button cylinder 105 mobile to which anti-clamping cylinder 105 skids off positioning chamber, in this way Further ensure the stability that button cylinder 105 is connect with the body of rod 1.

In addition, in order to eliminate the unbalance stress problem of intermediate nut 103, the inner cavity of intermediate nut 103 is to be inserted into from the body of rod The inner cavity surface of the gradually smaller conical cavity in direction, the intermediate nut 103 is bonded with the body of rod, such body of rod and intermediate nut 103 Form Cone fit, it is not only compact-sized, cooperation precision is high, long service life, but also connection inserted link is circumferentially limited and will The power connected on inserted link is evenly dispersed by entire 103 inner wall stress of intermediate nut, and single-point stress is avoided to lead to the generation of deformation.

It is also further optimized to intermediate nut 103 in the present embodiment, the tail end of the intermediate nut 103 is equipped with dress With portion 133, the mating surface of the department of assembly 133 and assembly tool be positioned at intermediate nut 103 inner cavity and/or periphery it is non-circular Face, department of assembly 133 described in embodiment are the regular polygon for being set to the inner cavity of intermediate nut 103, it is to be appreciated that dress It may also set up with portion 133 in the periphery of intermediate nut 103, and department of assembly 133 includes at least one non-circular face, specifically Intermediate nut 103 can be driven to move synchronously by department of assembly 133 convenient for assembly tool, it, can be with without limiting concrete shape For regular polygon or irregular polygon or not in conplane semicircle or not conplane there is card to limit function Other shapes.

Further, the tail end of the intermediate nut 103 is provided with intermediate nut fillet surface 143, the limiting stand on the body of rod 1 Rank 5 setting with intermediate nut fillet surface 143 cooperate even transition, if limited step 5 be smooth arc transition if in Between fillet surface 143 on nut 103 be circular arc chamfering formula slot, if limited step 5 is rectangular step or straight line chamfering step Fillet surface 143 is corresponding right angle or straight line fillet surface, in short, fillet surface 143 agrees with limited step shape, so that even It patches bar and seamless interfacing is realized in 103 junction of intermediate nut, stability and globality are greatly improved.

Embodiment 3

Jointing device of the present invention as shown in Figure 6 buckles barrel structure schematic diagram, and the cylinder periphery including detaining cylinder 105 is equipped with silk Button, the chuck radially shrinks to axis direction, button cylinder at this moment from embodiment 3 to buckle barrel structure different, cylinder can be with Regard as by the firm ennation together of spaced chuck, without being divided into pedestal and connection sheet, because of cylinder and card Platform is integrated casting, and if cylinder is annulus cylinder, chuck radially shrinks to axis direction, it can be understood as chuck is to infolding Bending is at gradually smaller tapered sleeve.

It further refines, when processing screw thread, in order to facilitate processing, escape is had in cylinder tail portion, so that cylinder Tail portion there are a bit of protrusion relative to escape, therefore the structure for detaining cylinder 105 also may include the pedestal 511 successively extended, Mounting portion 512 and contraction latch 513, the mounting portion 512 are equipped with screw thread and are screwed on big nut 101, the contraction latch 513 radial contractions uniform intervals arrangement.

The present embodiment uses connection inserted link as shown in Figure 7, during jointing device combines configuration, the company It patches the guide surface on bar and smoothly opens and shrink latch 513 and pass through button cylinder 105, reset until shrinking latch 513 and connect inserted link Limit cooperation is formed with button cylinder 105.

In addition, the cylinder of button cylinder 105 and the periphery of chuck 152 have radial drop, the diameter of the cylinder is greater than described The diameter of chuck 152, the radial direction drop to detain cylinder and fix after his sleeve installation have between chuck and sleeve it is certain Gap is more advantageous to strutting for chuck.

It is described button cylinder 105 tail end be equipped with clamping face 514, the clamping face 514 be set to detain cylinder 105 tail end it is interior Chamber and/or the non-disc of periphery, the face that clamps in the present embodiment be the triangle groove that button tube inner chamber is circumferentially uniformly arranged.

The tail end of the button cylinder 105 is equipped with the second fillet surface 515, connects the limited step 5 on inserted link and is provided with and second The even transition of fillet surface cooperation, the setting principle of the fillet surface is the same as intermediate nut fillet surface.

The button cylinder 105 is equipped with guide surface 40 with the first contact portion for connecting inserted link.

It further refines, as shown in figure 8, jointing device further includes big nut 101, primary nut 102, connects inserted link The interconnecting piece 2 of the body of rod 1 is screwed on primary nut 102, and button cylinder 105 is equipped in the big nut 101, and the cylinder periphery of button cylinder 105 is set There is screw thread, the chuck 152 is radially shunk to axis direction, and the cylinder chuck 152 of the button cylinder 105 is towards big nut 101 Inside be screwed on big nut 101,152 radial contraction of chuck uniform intervals setting, another kind refinement scheme be, button cylinder Including successively extend pedestal 511, mounting portion 512 and shrink latch 513, the mounting portion 512 be equipped with screw thread and with big spiral shell Mother 101 is screwed on, and 513 radial contraction of contractions latch ground uniform intervals arrangement, connection inserted link is screwed on primary nut 102, in company During connecing piecing devices combination configuration, the connection inserted link smoothly opens contraction card along guide surface 4 and/or the second guide surface 40 Tooth 513 simultaneously passes through button cylinder 105, until shrinking, latch 513 resets and connect inserted link and button cylinder 105 forms limit cooperation.

The embodiment compared with Example 3 the difference is that: 1, eliminate spring and intermediate nut, detain the contraction card of cylinder Tooth 513 has certain elastic deformation, detains the partial function for assuming responsibility for intermediate nut of cylinder 105；2, the installation direction of cylinder 105 is detained On the contrary, being changed to inversely dock by forward docking, redesign is made to the position limiting structure of limiting slot and chuck therewith, it is necessary that The limit cooperation of confined planes and chuck be it is firmly stable, the limit of right angle or acute angle or buckle-type is with being combined into preferably.

The invention also discloses a kind of prestressing force prefabricated components, including the first prestressing force prefabricated component, the second prestressing force prefabricated component And the jointing device of prestressing force prefabricated component is connect for connecting the first prestressing force prefabricated component and second, it is described to connect Head device is the jointing device for including connection inserted link and button cylinder 105, wherein several longitudinal steel in prestressing force prefabricated component Muscle and transverse steel constitute prefabricated component framework of steel reinforcement, and the prefabricated component both ends respectively correspond installation connection inserted link and button cylinder, wherein One end installation connection inserted link in first prestressing force prefabricated component, the second prestressing force prefabricated component, other end installing tache cylinder.

Further, the jointing device be include connection inserted link, big nut 101, primary nut 102, intermediate nut 103, elastic element 104 and the jointing device of cylinder 105 is detained, wherein big nut 101 and primary nut 102 are arranged in pre- respectively The reinforcing bar of product framework of steel reinforcement, wherein end reinforced be provided with pier nose, pier nose is fixedly connected with muscle hole 109 is worn, connection inserted link with Primary nut 102 is fixedly connected.

Specifically, the prefabricated component both ends, which respectively correspond, is provided with big nut 101 and primary nut 102, the big nut 101 and primary nut 102 be clamped by wearing longitudinal reinforcement main reinforcement 11 of the muscle hole 109 after pier nose, revolved on the primary nut 102 Bar is patched in succession, and 101 inner cavity of big nut is equipped with elastic element 104 and button cylinder 105, and intermediate nut 103 is screwed in big nut In 101 and positioning will be shifted on button cylinder 105, during jointing device combines configuration, the clamping joint of the connection inserted link is worn Entering intermediate nut 103, the guide surface 4 smoothly opens chuck 152 and button cylinder 105 is promoted to compress elastic element 104 and is allowed to shrink, It is resetted to elastic element 104 and detains cylinder 105 and form clamping engagement with inserted link is connect.

Another specific prestressing force prefabricated component, jointing device used be include connection inserted link, big nut 101, Primary nut 102 and the jointing device for detaining cylinder 105, the prefabricated component both ends, which respectively correspond, is provided with big nut 101 and small spiral shell Mother 102, the big nut 101 and primary nut 102 are clamped by wearing longitudinal reinforcement main reinforcement 11 of the muscle hole 109 after pier nose, It is screwed on the primary nut 102 and connects inserted link, button cylinder 105 is equipped in the big nut 101, is set on the cylinder of the button cylinder 105 There is screw thread and being screwed on big nut 101 inwardly of chuck 152, the uniform intervals setting of 152 radial contraction of chuck ground is connecting During piecing devices combine configuration, the guide surface 4 on the connection inserted link smoothly opens chuck 152 and passes through button cylinder 105, until card Platform 152 resets and connects inserted link and button cylinder 105 forms limit cooperation.

Further refinement, when detaining cylinder includes the pedestal 511 successively extended, mounting portion 512 and contraction latch 513, institute Mounting portion 512 is stated equipped with screw thread and being screwed on big nut 101,513 radial contraction of contractions latch uniform intervals arrange, Connection inserted link is screwed on primary nut 102, and during jointing device combines configuration, the connection inserted link is along guide surface 4 And/or smooth open of the second guide surface 40 shrinks latch 513 and passes through button cylinder 105, until shrinking the reset of latch 513 and connecting inserted link Limit cooperation is formed with button cylinder 105.

Claims (8)

1. a kind of connection inserted link, including the body of rod, which is characterized in that the body of rod includes interconnecting piece and plug division, and the end of plug division is set It is equipped with the clamping joint that limit cooperation is formed with external button cylinder, wherein clamping joint is provided with clamping button cylinder close to one end of interconnecting piece Confined planes, clamping joint is provided with guide surface far from one end of interconnecting piece, which is at least partially cambered surface.

2. connection inserted link according to claim 1, which is characterized in that the body of rod includes stub end and small head end, connecting portion In stub end, screw thread which is provided with；Plugging position is in small head end, to extend gradually smaller bullet from interconnecting piece.

3. connection inserted link according to claim 1, which is characterized in that the interconnecting piece and the binding site of plug division are equipped with It is raised in the limited step of plug division main body, the limited step limits the insertion depth of plug division.

4. connection inserted link according to claim 1, which is characterized in that plug division is equipped with the button for accommodating and with outside Cylinder forms the limiting slot of limit cooperation, and one end of close clamping joint forms confined planes on limiting slot.

5. connection inserted link according to claim 4, which is characterized in that one end on limiting slot close to clamping joint forms multistage Confined planes.

6. connection inserted link according to claim 4, which is characterized in that limiting slot is rectangular channel or dovetail groove.

7. connection inserted link according to any claim from 1 to 6, which is characterized in that be provided with and be loaded on the body of rod Portion, for cooperating with clamping tool.

8. connection inserted link according to claim 7, which is characterized in that it is described be loaded portion perpendicular to plug division axis section It is non-circular；Alternatively, the portion that is loaded is polygon perpendicular to the section of plug division axis；Alternatively, it is described be loaded portion perpendicular to At least two sections of the contour line in the section of plug division axis are straightway.