CN211421613U

CN211421613U - Improved FRP rib connecting device

Info

Publication number: CN211421613U
Application number: CN201922339460.8U
Authority: CN
Inventors: 滕晓蕾; 杨帅; 徐新生
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-04
Anticipated expiration: 2029-12-24

Abstract

An improved FRP rib connecting device comprises a connecting body (1) and a connecting piece, wherein the connecting body comprises a locking part (101), a tightening part (102), an internal thread A (103), an internal thread B (104) and a tightening groove (105); the FRP rib (2) comprises a protruding end (201) and a recessed end (203), an adhesive (3) is coated at the contact position, and the external thread A (202) and the internal thread A (103) are matched with each other; the locking ring (4) is annular as a whole, the outer side of the locking ring is provided with an external thread B (401), and the inner side of the locking ring is provided with an internal thread C (402); wherein the external thread B (401) is matched with the internal thread B (104); the internal thread C (402) is matched with the internal thread A (103); and a tightening steel ring (5) is arranged on the inner side of the tightening groove (105). The utility model discloses an improve and provide an improved generation FRP muscle connecting device here, structural design is simple, and convenient to use is swift, and FRP muscle locking is effectual, connects between two FRP muscle firmly, is difficult for droing, uses more laborsavingly.

Description

Improved FRP rib connecting device

Technical Field

The utility model relates to a civil construction technical field, specifically say an improved generation FRP muscle connecting device.

Background

The FRP rib is formed by gluing a plurality of strands of continuous fibers (such as glass fibers, carbon fibers and the like) through base materials (such as polyamide resin, polyethylene resin, epoxy resin and the like), extruding the glued continuous fibers through a special die and drawing the glued continuous fibers.

Found through the retrieval, patent number CN 203866126U's utility model discloses a FRP muscle is connecting device in advance, including the first hollow sleeve pipe that is provided with first outside passageway and tip external screw thread, be provided with second outside passageway and the internal screw thread of tip second hollow sleeve pipe, external screw thread and internal thread screw cooperation, the grout material that is injected into by first outside passageway makes FRP muscle one end fasten in first hollow sleeve pipe internal surface, and the grout material that is injected into by second outside passageway makes the FRP muscle other end fasten in second hollow sleeve pipe internal surface.

The FRP rib connection mainly comprises four connection modes of binding and lapping, mechanical connection, sleeve grouting connection and welding. The joints are arranged at the positions with smaller stress as much as possible, key parts with larger stress of the structure are avoided, the beam end and column end stirrup encryption ranges are avoided in the seismic design, and if the joints are required to be connected in the areas, mechanical connection or welding is adopted. Should establish connect less on same atress FRP muscle in same span or same floor height, should not set up two or more than two and connect, often need link together two kinds of FRP muscle when the building construction to the construction just needs to use improved generation FRP muscle connecting device at this time. However, the existing FRP rib connecting device has the following disadvantages through analysis: structural design is comparatively complicated, and it is inconvenient to use in the building construction place, and workman's intensity of labour is higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem existing in the prior art, the utility model provides an improved generation FRP muscle connecting device.

The utility model provides a technical scheme that its technical problem adopted is:

an improved FRP rib connecting device comprises a cylindrical connecting body (1), wherein the connecting body (1) comprises a locking part (101) positioned in the middle and clamping parts (102) positioned at two ends of the locking part (101); an internal thread A (103) is arranged on the inner side of the locking part (101), and an internal thread B (104) is arranged on the inner side of the tightening part (102); the outer sides of the two ends of the connecting body (1) are also provided with concave tightening grooves (105).

The interior of the connecting body (1) is spirally connected with an FRP rib (2), the end part of the FRP rib (2) comprises a protruding end (201) and a recessed end (203), and the protruding end (201) and the recessed end (203) are mutually spliced, embedded and connected; the contact part of the protruding end (201) and the recessed end (203) is coated with an adhesive (3); the outer side of the end part of the FRP rib (2) is provided with an external thread A (202), and the external thread A (202) is matched with the internal thread A (103).

A locking ring (4) is arranged on the inner side of the clamping part (102), the locking ring (4) is in a circular ring shape as a whole, the outer side of the locking ring is provided with an external thread B (401), and the inner side of the locking ring is provided with an internal thread C (402); wherein the external thread B (401) is matched with the internal thread B (104); the internal thread C (402) is matched with the internal thread A (103).

And a tightening steel ring (5) is arranged on the inner side of the tightening groove (105).

The utility model discloses still have following additional technical characterstic:

as the utility model discloses technical scheme further specifically optimizes: the outer diameter of the FRP rib (2) is a1, the inner diameter of the locking part (101) is a2, wherein a1= a 2; the inner diameter of the locking ring (4) is a3, wherein a1= a 3; the outer diameter of the locking ring (4) is a4, and the inner diameter of the clamping part (102) is a5, wherein a4= a 5.

As the utility model discloses technical scheme further specifically optimizes: the connecting body (1), the locking ring (4) and the tightening steel ring (5) are all made of stainless steel.

Compared with the prior art, the utility model, its advantage lies in: the utility model discloses an improve and provide an improved generation FRP muscle connecting device here, structural design is simple, and convenient to use is swift, and FRP muscle locking is effectual, connects between two FRP muscle firmly, is difficult for droing, uses more laborsavingly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic sectional view of an improved FRP rib connecting device according to the present invention;

fig. 2 is a schematic cross-sectional structural view of the connecting body 1 of the present invention;

fig. 3 is a schematic sectional structure view of the FRP rib 2 of the present invention;

fig. 4 is a schematic cross-sectional view of the locking ring 4 of the present invention;

fig. 5 is a schematic structural view of the tightening steel ring 5 of the present invention.

Sequence numbers shown in the figures: a connecting body 1; a locking portion 101; a band-tightening part 102; an internal thread A103; an internal thread B104; a tightening groove 105; FRP ribs 2; a protruding end 201; external threads A202; a recessed end 203; a binder 3; locking ring 4, external thread B401; an internal thread C402; and a steel ring 5 is tightly hooped.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more completely understood, and the scope of the present disclosure may be fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure is not limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An improved FRP rib connecting device is shown in figure 1 and comprises a cylindrical connecting body 1, FRP ribs 2, an adhesive 3, a locking ring 4 and a hooping steel ring 5. Wherein, the material of connecting body 1, locking ring 4 and lock ring steel ring 5 all adopts the stainless steel to make.

As shown in fig. 1, the connecting body 1 includes a locking portion 101 at the middle and tightening portions 102 at both ends of the locking portion 101. An internal thread A103 is arranged on the inner side of the locking part 101, and an FRP rib 2 is spirally connected inside the locking part 101; an internal thread B104 is arranged on the inner side of the tightening part 102, an FRP rib 2 is spirally connected to the inner part of the tightening part 102, and a locking ring 4 is spirally connected to the gap between the FRP rib 2 and the tightening part 102. The outer sides of the two ends of the connecting body 1 are also provided with sunken tightening grooves 105, and the tightening grooves 105 are used for installing tightening steel rings 5.

The inside spiral connection of connecting body 1 has FRP muscle 2, and the tip of FRP muscle 2 is including protruding end 201 and recessed end 203 two kinds of shapes, and protruding end 201 and recessed end 203 splice the gomphosis each other and connect, and wherein, when in actual use, the contact department of protruding end 201 and recessed end 203 has scribbled binder 3, and it is integrative to bond two FRP muscle 2, and binder 3 can be resin system or cement base system. Adopt sticky + mechanical interlock's mode to be connected with FRP muscle 2, both prevented to cause the damage to FRP muscle 2, avoided appearing fragile slippage destruction again, still increase the stretching resistance.

The outside of the end of the FRP rib 2 is provided with an external thread A202, and the external thread A202 and the internal thread A103 are mutually matched, so that the locking part 101 is in threaded connection with the FRP rib 2, and the tensile resistance is increased.

The locking ring 4 is attached to the inside of the tightening part 102, and the locking ring 4 is annular as a whole, and has an external thread B401 on the outside and an internal thread C402 on the inside. Wherein the external thread B401 is matched with the internal thread B104; the internal thread C402 and the internal thread A103 are matched with each other, so that the locking ring 4 is in threaded connection with the FRP rib 2, the tightening part 102 is in threaded connection with the locking ring 4, the locking ring 4 increases the friction force between the tightening part 102 and the FRP rib 2, the mechanical biting force is increased, and further the tensile resistance is increased.

The inside of the tightening ring groove 105 is provided with a tightening ring 5, and the tightening ring 5 increases the friction between the tightening ring part 102 and the FRP rib 2, thereby increasing the tensile resistance.

In actual use, the outer diameter of the FRP rib 2 is a1, and the inner diameter of the locking part 101 is a2, where a1= a 2. The inner diameter of the locking ring 4 is a3, wherein a1= a 3. The locking ring 4 has an outer diameter of a4 and the tightening part 102 has an inner diameter of a5, where a4= a 5.

The use method of the improved FRP rib connecting device comprises the following steps: firstly, the tightening steel ring 5 and the locking ring 4 are respectively sleeved in the same FRP rib 2, the protruding end 201 and the recessed end 203 of the end parts of the 2 FRP ribs 2 are respectively coated with the adhesive 3, and the 2 FRP ribs 2 are respectively screwed in from the left end and the right end of the connecting body 1 until the protruding end 201 and the recessed end 203 are mutually spliced and embedded and connected. At this time, the locking rings 4 on the left and right sides are screwed between the hoop part 102 and the FRP ribs 2, respectively, until they are locked. Finally, the tightening steel ring 5 is placed in the tightening groove 105, and the tightening steel ring 5 is screwed; and is completed.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all changes in equivalent structures or equivalent processes using the contents of the specification and drawings of the present invention, or directly or indirectly using other related technical fields, are also included in the scope of the present invention.

Claims

1. An improved FRP rib connecting device is characterized by comprising a cylindrical connecting body (1), wherein the connecting body (1) comprises a locking part (101) positioned in the middle and clamping parts (102) positioned at two ends of the locking part (101); an internal thread A (103) is arranged on the inner side of the locking part (101), and an internal thread B (104) is arranged on the inner side of the tightening part (102); the outer sides of the two ends of the connecting body (1) are also provided with concave tightening grooves (105);

the interior of the connecting body (1) is spirally connected with an FRP rib (2), the end part of the FRP rib (2) comprises a protruding end (201) and a recessed end (203), and the protruding end (201) and the recessed end (203) are mutually spliced, embedded and connected; the contact part of the protruding end (201) and the recessed end (203) is coated with an adhesive (3); the outer side of the end part of the FRP rib (2) is provided with an external thread A (202), and the external thread A (202) is matched with the internal thread A (103);

a locking ring (4) is installed on the inner side of the clamping part (102), the locking ring (4) is annular as a whole, an external thread B (401) is arranged on the outer side of the locking ring, and an internal thread C (402) is arranged on the inner side of the locking ring; wherein the external thread B (401) is matched with the internal thread B (104); the internal thread C (402) is matched with the internal thread A (103);

2. The improved FRP rib connecting device as claimed in claim 1, wherein: the outer diameter of the FRP rib (2) is a1, the inner diameter of the locking part (101) is a2, wherein a1= a 2; the inner diameter of the locking ring (4) is a3, wherein a1= a 3; the outer diameter of the locking ring (4) is a4, and the inner diameter of the clamping part (102) is a5, wherein a4= a 5.

3. The improved FRP rib connecting device as claimed in claim 1, wherein: the connecting body (1), the locking ring (4) and the tightening steel ring (5) are all made of stainless steel.