CN208024674U - A kind of connection inserted link - Google Patents

Abstract

It is a kind of simple in structure that the utility model is dedicated to exploitation, 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 partly cambered surface, one end of wherein button 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, the utility model guide part 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, ensure bolt grafting in place, reliability is connected to improve pile body.

Description

A kind of connection inserted link

The application is the division that invention and created name is " a kind of to connect inserted link, jointing device and prestressing force prefabricated component " Application, the applying date is：2017-12-04, application No. is：201721661766X.

Technical field

The utility model is related to build connector technical field more particularly to a kind of connection inserted link.

Background technology

Be presently 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, the connection type of stake is improved by many utility model people 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 harden structure for no reason, it includes rising to draw nut, top pull nut, rises and draws nut It is internal thread structure with top pull nut, the taper sheath being made of two panels or multi-disc, gasket, spring, upsetting is provided in top pull nut 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, in order to be connected firmly, the mode for using multi-disc taper sheath limits, and needs multi-disc taper sheath when installation Subsequent action could be carried out by being all mounted on a specific purpose tool, Shortcomings in terms of simple operation.

For another example, Patent No. " ZL201720161153.3 ", entitled " a kind of jointing device " Chinese patent Use harden structure for no reason.The taper sheath one that the patent is constituted gasket and two panels or multi-disc on the basis of above-mentioned utility model Body, disclosed button cylinder includes cyclic annular collet, and the collet upper edge is provided at circumferentially spaced multiple cards with buckle function Chip architecture.On this basis, which is also disclosed a kind of jointing device comprising bottom cylinder and top cylinder, bottom cylinder it is interior Chamber 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 arranged The collet of the button cylinder stated, the button cylinder is set to above elastic element, in being provided with above multiple card mechanisms of the button cylinder Empty lock cylinder, the lock cylinder are 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 There is a bolt, passing through to be snapped in after lock cylinder on the inner cavity that the multiple cards for buckleing cylinder surround by bolt between the top cylinder and bottom cylinder makes The two 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, the structure bolt and the card form chuck for buckleing cylinder are clamped, 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 so that part bolt is unable to grafting in place, and 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 utility model people is existing thus Further research and develop and test on the basis of many technologies, strive making it is a it is simple in structure, stable, be connected firmly, be easy for installation Jointing device.

Utility model content

The utility model is based on above-mentioned technical problem, be dedicated to developing it is a kind of it is simple in structure, be connected firmly, be easy for installation Jointing device.

To achieve the goals above, the utility model provides a kind of connection inserted link, including the body of rod, the body of rod include interconnecting piece and Plug division, 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 connection The one end in portion is provided with the confined planes of clamping button cylinder, and the one end of clamping joint far from interconnecting piece is provided with guide surface, and the guide surface is extremely Rare part is cambered surface.

Further guide surface includes multiple so that the body of rod is 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, which is equipped with, to be used for accommodating and forms the limiting slot for limiting cooperation with external button cylinder, close to 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 at least one confined planes for coordinating 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.

Further, on the body of rod further include the portion of being loaded, for being engaged by clamping with clamping tool, the portion of being loaded is logical in the portion of being loaded It crosses card access surface to be engaged by clamping with clamping tool, 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 contour line at least two section of the portion perpendicular to the section of plug division axis that be loaded is straightway.

Another technical solution of the utility model is a kind of jointing device, including button cylinder and the connection inserted link, One end of wherein 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 site for connecting inserted link.

The button cylinder includes chuck of the multi-disc on cylinder and cylinder with buckle function, circumferentially uniform of multi-disc chuck 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 utility model further includes big nut, primary nut, intermediate nut and compression spring, intermediate nut, button cylinder and compression spring It is loaded in big nut successively, connection inserted link is fixedly connected loaded on primary nut, and the bottom of the big nut and primary nut is all provided with useful In wearing muscle hole with what reinforcing bar pier nose was clamped, be screwed on connection inserted link on the primary nut, that is, connects the interconnecting piece and primary nut of inserted link It is screwed on, the big nut inner cavity is equipped with elastic element and chuck, and intermediate nut is screwed in big nut and determines being shifted in chuck Position, during jointing device combines configuration, the plug division of the connection inserted link penetrates intermediate nut, and the guide surface is smooth Open-top chuck simultaneously promotes chuck compression elastic element to be allowed to shrink, until spring element returns and chuck and limiting slot clamping engagement.

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, the limited step setting on the body of rod and intermediate nut 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 is moved along the inner wall of positioning chamber to stop bit cavity direction and touches stop bit chamber, the stop bit chamber can prevent chuck Movement is to prevent chuck from skidding off positioning chamber.

It is obtuse angle to have angle and angle between the positioning surface and stop surface.

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.

There is radial drop, the diameter of the cylinder to be more than the straight of the chuck for the cylinder of the button cylinder and the periphery of 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 limited step on the body of rod is provided with to be coordinated with the second fillet surface Even transition.

The jointing device of the utility model further includes big nut, primary nut and buckles cylinder, and the button cylinder chuck is inwardly simultaneously It is fixedly connected with big nut, 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 pre- Stress prefabricated component and the jointing device of prestressing force prefabricated component is connect under for connecting the upper prestressing force prefabricated component, it is described Jointing device is above-mentioned any jointing device, wherein several longitudinal reinforcements in prestressing force prefabricated component and cross Prefabricated component framework of steel reinforcement is constituted to reinforcing bar, correspondence is equipped with big nut and primary nut, the big nut respectively at the prefabricated component both ends It is clamped respectively with the longitudinal reinforcement main reinforcement after pier nose with primary nut 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 art, the guide part of the inserted link of the utility model is arc surface to the utility model, with button cylinder card The contact surface of platform is disc, and contact surface, will not be stuck without dead angle when guiding, ensures bolt grafting in place, to improve pile body connection Reliability avoids resistance to plucking tensile capacity from declining while also avoiding leading to inserted link backfin chuck or inserted link hit card because unsmooth Platform causes chuck to deform and connects not close unstable problem.

In addition, the utility model is further optimized on this basis, several effects can also be obtained, such as：

(1) for the high large-scale component of the big weight of the such volume of prefabricated component, the internal stability connected is even more important, this Utility model intermediate nut is bonded configuration with the inserted link of bullet, agrees with slot in intermediate nut in addition and connects the transition on inserted link Step agrees with, and on the one hand so that jointing is integrated into a whole, eliminates the gap inside connector, brings tightness On the other hand the benefit played has disperseed the position of stress, become circumferential surface contact from line contact, enhance life of product With the stability of product.

(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 can coordinate inserted link to form firm triangulation location to chuck, prevent chuck to be detached from fixed Position chamber, keeps jointing grafting process reliable and stable.

(4) the be loaded setting in portion of the utility model changes the structure of original fluting assembly, becomes circumferential clamping assembly, keeps away The problem of fluting in the destruction and assembly of rigidity part stress to beating open-minded installation opening is exempted from.

Description of the drawings

Fig. 1 is one structural schematic diagram of embodiment that the utility model connects inserted link；

Fig. 2 is another schematic cross-sectional view that the utility model connects inserted link；

Fig. 3 is the another schematic cross-sectional view that the utility model connects inserted link；

Fig. 4 is two structural schematic diagram of embodiment of the utility model jointing device；

Fig. 5 is the intermediate nut structural schematic diagram of the utility model jointing device；

Fig. 6 buckles barrel structure schematic diagram for the utility model jointing device；

Fig. 7 is the connection hinge pedestal structure schematic diagram of the utility model embodiment 4；

Fig. 8 is the structural schematic diagram of the jointing device of the utility model embodiment 4.

Specific implementation mode

The utility model is illustrated below according to attached drawing illustrated embodiment.This time disclosed embodiment can consider in institute It is to illustrate to have aspect, without limitation.The scope of the utility model is not illustrated to be limited by following implementation, only by right Shown in the range of claim, and include all changes having with right in the same meaning and right Shape.

Illustrate that the utility model is described in more detail with reference to specific embodiment.

Embodiment 1

One structural schematic diagram of embodiment of the utility model connection inserted link as shown in Figure 1, a kind of connection inserted link, including bar Body 1, the body of rod 1 include interconnecting piece 2 and plug division 3, and the end of plug division 3 is provided with the card that limit cooperation is formed with external button cylinder Connector, wherein clamping joint are provided with the confined planes 61 of clamping button cylinder close to one end of interconnecting piece, clamping joint far from interconnecting piece one End is provided with guide surface 4, and the guide surface 4 at least part is cambered surface, and interconnecting piece 2 is equipped with screw thread, and plug division 3 is from interconnecting piece 2 extend the end of gradually smaller bullet and plug division 3 equipped with arc-shaped guide surface 4, it is to be appreciated that connection is inserted Bar may be cylinder or other regular polygon bodies, is additionally provided on plug division 3 for housing and forming limit cooperation with chuck Limiting slot 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, described Limited step 5 limits the insertion depth of plug division 3, since plug division 3 is to extend gradually smaller taper from interconnecting piece 2 Body makes the body of rod 1 form 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 which is provided with screw thread, and plug division 3 sets gradually limiting slot 6 and guide surface 4, and guide surface 4 is for making body of rod microcephaly hold level with both hands Sliding support opens chuck.

Guide surface 4 so that the body of rod is up-small and down-big and (is not embodied 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 to be divided into multistage by guiding role, existing without needing to change to adapt to different chuck 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 buffering 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 at least one confined planes 61 for coordinating with chuck, and radial recess is to form on the body of rod 1 Limiting slot 6, limiting slot 6 and the engaging portion of chuck mutually coincide in shape, when the confined planes 61 are inclined-plane, in the body of rod At vee gutter on 1.

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 not rounded face, and the specific location of card access surface 71 can be arranged as required 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 the section of plug division axis be polygon, it will be understood by those skilled in the art that the portion of being loaded hang down Directly drive connection inserted link can be blocked in the section of plug division axis for non-circular other to 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 is straightway, it is to be appreciated that the portion 7 that is loaded is to be set to the lower concave plane of plug division 3 or cut vertical Face, lower concave plane or cutting facade are two, and symmetrical setting is in plug division both sides, it is also conceivable that the portion of being loaded is grafting The slot of turning in portion.

For the limit cooperation suitability and raising resistance to plucking tensile strength for enhancing limiting slot 6 with detaining cylinder, a kind of limit is devised Position slot structure, limiting slot 6 are rectangular channel or dovetail groove, can be coordinated 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 less 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, the improvement of the utility model is to stress point for the prefabricated component heavy to bulky exception The improvement of good result is played after repeatedly examining, due to the characteristic of prefabricated component or stake determine itself once once connecting it is buried in underground or In building, therefore the service life to connector, stability and tensile strength have very high requirement, this improvement is meant to ensure that tension The service life for connecting inserted link and its suitability and stability are further increased in the case of intensity.

Embodiment 2

The structural schematic diagram of the utility model jointing device as shown in Figure 4, connection inserted link uses Fig. 2 in the present embodiment Shown in connect inserted link, including button cylinder 105 and the connection inserted link, wherein one end of button cylinder 105 is provided at least two panels card Platform 152, the clamping joint for connecting inserted link are inserted into and are formed clamping engagement, the button cylinder 105 and the first contact site for connecting inserted link Equipped with the second guide surface 40, the button cylinder 105, which includes the multi-disc on cylinder and cylinder, has the chuck 152 for buckling function, multi-disc 152 circumferentially uniform interval of chuck is arranged, and cylinder described in the present embodiment includes collet 151 and connection sheet 153, the chuck 152 are connect with collet 151 by connection sheet 153, and the connection sheet 153 is elastic piece, has flexible deformation, connects inserted link in this way On arc-shaped guide surface 4 and rectangle limiting slot 6 both realized smooth connection avoid it is stuck, further through rectangle limiting slot enhance Resistance to plucking tensile strength.

The utility model further includes big nut 101, primary nut 102, intermediate nut 103, in prefabricated component connection procedure, in advance Longitudinal reinforcement main reinforcement 11 on framework of steel reinforcement in product part is each passed through the bottom holes Chuan Jin of big nut 101, primary nut 102 Pier nose after 109, 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 set Have elastic component 104 and button cylinder 105, and elastic element 104 holds button cylinder 105, intermediate nut 103 be screwed in big nut 101 and Will button cylinder 105 on shift positioning, elastic element 104 be compression spring, or rubber, clamp spring, shrapnel etc. other have reset work( The spring element of energy, during jointing device combines configuration, the clamping joint of the body of rod 1 passes through intermediate nut 103, along Guide surface on button cylinder 105 or 1 either component of the body of rod is smooth open-top buckle cylinder 105 and promotes to buckle the compression elastic element 104 of cylinder 105 It is allowed to shrink, be engaged by clamping with limiting slot 6 until elastic element 104 resets and detains cylinder 105.

Big nut 101,102 shape of primary nut are cylinder 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 utility model.

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 connect with collet 151 by card 153, 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, the obtuse angle for being 120 ° -160 ° with angle ∠ a and angle ∠ a between positioning surface 113 and stop surface 123, positioning 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 the button movement of cylinder 105 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 gradually smaller conical cavity in direction, the inner cavity surface of the intermediate nut 103 are 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, service life is long, but also connection inserted link is circumferentially limited and will The power connected on inserted link is evenly dispersed by 103 inner wall stress of entire 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 is positioned at the not rounded of the inner cavity of intermediate nut 103 and/or periphery Face, department of assembly 133 described in embodiment are the regular polygon for the inner cavity for being set to intermediate nut 103, it is to be appreciated that dress It may also set up in the periphery of intermediate nut 103 with portion 133, and department of assembly 133 includes at least one not rounded 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 be arranged with intermediate nut fillet surface 143 coordinate 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 slitless connection is realized in 103 junction of intermediate nut, stability and globality are greatly improved.

Embodiment 3

The utility model jointing device as shown in Figure 6 buckles barrel structure schematic diagram, includes the cylinder periphery of button cylinder 105 Equipped with screw thread, the chuck is radially shunk to axis direction, button cylinder at this moment and different, the cylinder of buckleing barrel structure in embodiment 3 Body can be regarded as by the firm ennation together of spaced chuck, without being divided into pedestal and connection sheet, because of cylinder Body and chuck are integrated casting, and if cylinder is annulus cylinder, chuck is radially shunk to axis direction, it can be understood as chuck Inside bending forms gradually smaller tapered sleeve.

It further refines, when processing screw thread, processes for convenience, have escape 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 can also include the pedestal 511 extended successively, 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 smooth open-top contraction latch 513 of guide surface on bar and across button cylinder 105, resets until shrinking latch 513 and connect inserted link Limit cooperation is formed with button cylinder 105.

In addition, the periphery of the cylinder of button cylinder 105 and chuck 152 has radial drop, the diameter of the cylinder is more than described The diameter of chuck 152, the radial direction drop to detain cylinder and have centainly between chuck and sleeve after fixing his sleeve installation 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 site 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 are screw thread, the chuck 152 radially to be shunk to axis direction, 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 the chuck uniform intervals setting, another kind refinement scheme be, button cylinder Including extend successively 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 is along 40 smooth open-top contraction card of guide surface 4 and/or the second guide surface Tooth 513 simultaneously passes through and detains cylinder 105, resets until shrinking latch 513 and connects inserted link and detain the formation limit cooperation of cylinder 105.

The embodiment compared with Example 3 the difference is that：1, spring and intermediate nut are eliminated, the contraction card of cylinder is detained 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 is firmly stable, and the limit of right angle or acute angle or buckle-type is preferred with being combined into.

The invention also discloses a kind of prestressing force prefabricated component, including the first prestressing force prefabricated component, the second prestressing force are pre- Product and meet the jointing device of prestressing force prefabricated component, the company for connecting the first prestressing force prefabricated component and second It includes the jointing device for connecting inserted link and detaining cylinder 105 to connect piecing devices to be, wherein several in prestressing force prefabricated component are vertical Prefabricated component framework of steel reinforcement is constituted to reinforcing bar and transverse steel, corresponding installation connects inserted link and button cylinder respectively at the prefabricated component both ends, One end installation connection inserted link in wherein the 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 are correspondingly arranged on big nut 101 and primary nut 102, the big nut respectively 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 the 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 smooth open-top chuck 152 of the guide surface 4 simultaneously promotes the button compression elastic element 104 of cylinder 105 to be 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 are correspondingly arranged on big nut 101 and small spiral shell respectively 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, Be screwed on connection inserted link on the primary nut 102, and 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 smooth open-top chuck 152 of guide surface 4 on the connection inserted link and across button cylinder 105, to blocking Platform 152 resets and connects inserted link forms limit cooperation with button cylinder 105.

Further refinement, when it includes the pedestal 511 extended successively, mounting portion 512 and contraction latch 513 to detain cylinder, 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 40 smooth open-top contraction latch 513 of the second guide surface and across button cylinder 105, to shrink latch 513 reset and connect 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, the one end of clamping joint far from interconnecting piece is provided with guide surface, which is at least partly 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 be equipped with for it is accommodating and with external button Cylinder forms the limiting slot of limit cooperation, forms confined planes close to one end of clamping joint 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 coordinating with clamping tool.

8. connection inserted link according to claim 7, which is characterized in that the portion that is loaded is perpendicular to the section of plug division axis 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 is straightway.