CN208917829U

CN208917829U - Concrete component connects sleeve

Info

Publication number: CN208917829U
Application number: CN201821038609.8U
Authority: CN
Inventors: 袁雪峰
Original assignee: Individual
Current assignee: Tianhai Steel Bar Zhangjiagang Co Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2019-05-31
Anticipated expiration: 2028-06-29

Abstract

The utility model discloses a kind of concrete components to connect sleeve, including sleeve body, one end of the sleeve body is the first connecting pin connecting with reinforcing bar, and the other end is the second connection end for cooperating with connector, and the outside of the second connection end is equipped with flange.Flange is arranged in concrete component connection sleeve described in the utility model, form second level stress step surface, it solves the problems, such as that a crackle that stake end face in the prior art generates when putting and concrete fall off, while the prismatic setting of sleeve body, enhances concrete and connect embracing between sleeve and wrap up in power.

Description

Concrete component connects sleeve

Technical field

The utility model relates to building element technical fields, and in particular to a kind of concrete component connection sleeve.

Background technique

Currently, in order to accelerate speed of application and guarantee construction quality, prestressed-concrete pile obtains in building construction process Extensive use, due to usually require in the construction process will more pieces prestressed-concrete piles connections, in concrete-pile End face is fixed with mechanical fastener, and mechanical fastener includes the structures such as connection sleeve, plug and hyoid tooth, and connection sleeve one end passes through Reinforcing bar is fixed on concrete-pile end face, and the other end is respectively fixed with plug or hyoid tooth structure, and plug and hyoid tooth can be mutually clamped To realize the connection of concrete-pile.

But connection sleeve, when being used for prestressing force main reinforcement, under the action of main reinforcement stress, sleeve is by towards in stake end face The power of side leads to end face since to will lead to an end face when prestressed pile is put cracked for sleeve axial direction loaded area deficiency Place's concrete falls off, and causes the damage of concrete-pile.

Utility model content

The it is proposed of the utility model in view of the above problems, and a kind of concrete component of researching and designing connects sleeve, has The advantages that structure is simple, and axial carrying area is big.

The technological means that the utility model uses is as follows:

A kind of concrete component connection sleeve, including sleeve body, one end of the sleeve body are to connect with reinforcing bar First connecting pin, the other end are the second connection end for cooperating with connector, and the outside of the second connection end is equipped with flange；

Further, it is connected between the flange and the lateral wall of sleeve body by inclined surface；

Further, the angle between the inclined surface and sleeve body lateral wall is 90 °~150 °；

Further, the angle between the inclined surface and sleeve body lateral wall is 105 °~135 °；

Further, the angle between the inclined surface and sleeve body lateral wall is 120 °；

Further, it is equipped with step surface at the inside edge of the second connection end, makes shape at the inner wall of second connection end At ladder counter bore structure；

Further, the inside of first connecting pin is equipped with radially inwardly projecting chuck, and the chuck is equipped with court To the card access surface of the round tapered of second connection end side, the angle about two buses substantially symmetrical about its central axis of the card access surface It is 90 °~150 °；

Further, the angle about two buses substantially symmetrical about its central axis of the card access surface is 120 °；

Further, the inner wall of the second connection end is equipped with screw thread, and the outside of the sleeve body is prismatic；

Further, the outside of the sleeve body is positive eight prisms, positive ten prism or positive 12 prism.

Compared with the prior art, concrete component connection sleeve disclosed by the utility model has the advantages that It is equipped with the axial carrying area that flange improves sleeve outside second connection end, forms second level stress step surface, while again than increasing The diameter of big entire sleeve saves cost, while the prismatic setting of sleeve body, enhance concrete and connection sleeve it Between embrace wrap up in power.

Detailed description of the invention

Fig. 1 is the main view of concrete component connection sleeve disclosed by the utility model；

Fig. 2 is the cross-sectional view in Fig. 1 at A-A；

Fig. 3 is the left view of Fig. 1.

Fig. 4 is the structural schematic diagram with the connection sleeve of screw-thread steel cooperation.

Fig. 5 is the structural schematic diagram with the connection sleeve of stranded wire anchor head cooperation.

In figure: 1, sleeve body, the 101, first connecting pin, 102, second connection end, 103, flange, 104, inclined surface, 105, tapered surface, 106, chuck, 107, card access surface, 108, screw thread.

Specific embodiment

As shown in Figure 1, Figure 2 and Figure 3, concrete component disclosed by the utility model connects sleeve, including sleeve body 1, One end of the sleeve body 1 is the first connecting pin 101 connecting with reinforcing bar, and the other end is second for cooperating with connector The outside of connecting pin 102, the second connection end 102 is equipped with flange 103.Sleeve is connected under the effect of prestressing force main reinforcement by court Power on the inside of stake end face is equipped with flange outside second connection end, can increase the axial carrying area of connection sleeve, so that Concrete-pile end face will not cause concrete cracked because of loaded area deficiency, or even fall off.

Further, it is connected between the flange 103 and the lateral wall of sleeve body 1 by inclined surface 104, the inclination Angle between 1 lateral wall of face 104 and sleeve body is generally 90 °~150 °.Between flange and the lateral wall of sleeve body Be arranged inclined surface, can further increase connection sleeve and concrete-pile between contact area, while can to avoid flange with The stress of sleeve body junction is concentrated, it is also possible that concrete is adequately contacted with connection sleeve outer surface, that is, can It is formed to avoid being easy to cannot be introduced into concrete there are small space when flange and sleeve body are vertical plane transition Gap is so that the problem of contact strength reduces.

Preferably, the angle between the inclined surface and sleeve body lateral wall is 105 °~135 °, further, described Angle between inclined surface and sleeve body lateral wall is 120 °.When the angle between inclined surface and sleeve body lateral wall is At 120 °, the stress connected between sleeve and concrete-pile end face is more scientific, can reduce concrete-pile end face is caused it is larger Extruding force.

Further, it is equipped with step surface 105 at the inside edge of the second connection end 102, makes second connection end 102 Ladder counter bore structure is formed at inner wall, and positioning action is played to the axial direction of connector when screwing in connector, it can also be at this Tapered surface is set, second connection end is made to form horn-like structure, tapered surface plays guiding role while positioning.Second connection It is equipped with tapered surface at the inside edge at end, guiding role can be played, convenient for when installing plug or cutting ferrule into connection sleeve It is oriented to.

Further, the inside of first connecting pin 101 is equipped with radially inwardly projecting chuck 106, the chuck 106 Be equipped with towards 102 side of second connection end round tapered card access surface 107, the card access surface 107 about central axis pair The angle αs of two buses be referred to as 90 °~150 °.The inside of first connecting pin is equipped with chuck, and chuck is equipped with card access surface, can be with Easily the pier nose of PC rod iron is cooperatively connected with the first connecting pin for connecting sleeve.

Further, the angle α about two buses substantially symmetrical about its central axis of the card access surface is 110 °~130 °, optimal 120 ° are selected, since the stress surface angle of the pier nose of PC rod iron is 120 °, the angular compliance of the pier nose of card access surface and PC rod iron at this time Highest is spent, while guaranteeing chuck self-strength, keeps pier nose stress more scientific, pier nose part is avoided to be squeezed under the action of pulling force Compressive strain.

Further, the inner wall of the second connection end is equipped with screw thread 108, can carry out in order to plug or cutting ferrule with it It is threadedly coupled.

Further, the outside of the sleeve body is prismatic, and the outside of the sleeve body is positive eight prisms, positive ten Prism or positive 12 prism, as shown in figure 3, the outside of sleeve body is positive 12 prisms in the present embodiment, sleeve body Outside is prismatic structures, enhances embracing between sleeve and concrete and wraps up in power, increases bonding strength.

Further, the thickness of the flange is less than the 1/4 of sleeve body length, preferably the 1/10 of sleeve body length ~1/5, most preferably the 1/8 of sleeve body length.All edges of the present embodiment can be carried out according to machining demand Which is not described herein again for the case where chamfered includes chamfering and fillet, is all contained in protection scope required by the utility model Within.

The inside of first connecting pin can be processed into chuck structure inwardly projecting as described previously, to be used for and PC steel Stick connection can also be processing internal thread structure on the inside of the first connecting pin, as shown in figure 4, in order to screw-thread steel into Row connects, and can also be on the inside of the first connecting pin and is processed into the bellmouth of big mouth inwardly, as shown in figure 5, setting in bellmouth Having outer surface is the stranded wire anchor head of the conical surface, and the outer surface of stranded wire anchor head and bellmouth cooperate, and stranded wire anchor head is limited in In bellmouth, and wire circlip is equipped with outside stranded wire anchor head, stranded wire anchor head is connect with steel strand wires, and specific structure is in China It is announced in patent [201610002479.1], is known to the personnel of ability field, details are not described herein again.

Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.

Claims

1. a kind of concrete component connects sleeve, including sleeve body, one end of the sleeve body is the connect with reinforcing bar One connecting pin, is machined with the chuck of internal screw thread/bellmouth/inwardly projecting on the inside of first connecting pin, the other end be for The second connection end of connector cooperation, the second connection end inner wall are equipped with screw thread, it is characterised in that: the second connection end Outside is equipped with flange.

2. concrete component according to claim 1 connects sleeve, it is characterised in that: the flange and sleeve body it is outer It is connected between side wall by inclined surface.

3. concrete component according to claim 2 connects sleeve, it is characterised in that: outside the inclined surface and sleeve body Angle between side wall is 90 °~150 °.

4. concrete component according to claim 3 connects sleeve, it is characterised in that: outside the inclined surface and sleeve body Angle between side wall is 105 °~135 °.

5. concrete component according to claim 4 connects sleeve, it is characterised in that: outside the inclined surface and sleeve body Angle between side wall is 120 °.

6. concrete component according to claim 1 connects sleeve, it is characterised in that: the inner side edge of the second connection end It is equipped with step surface at edge, makes to form ladder counter bore structure at the inner wall of second connection end.

7. concrete component according to claim 1 connects sleeve, it is characterised in that: set on the inside of first connecting pin There is radially inwardly projecting chuck, the chuck is equipped with the card access surface towards the round tapered of second connection end side, described The angle about two buses substantially symmetrical about its central axis of card access surface is 90 °~150 °.

8. concrete component according to claim 7 connects sleeve, it is characterised in that: the card access surface about central axis The angle of symmetrical two buses is 120 °.

9. concrete component according to claim 1 connects sleeve, it is characterised in that: the outside of the sleeve body is rib Cylindricality.

10. concrete component according to claim 9 connects sleeve, it is characterised in that: the outside of the sleeve body is Positive eight prism, positive ten prism or positive 12 prism.