CN212295347U

CN212295347U - Novel reinforcing steel bar connecting assembly

Info

Publication number: CN212295347U
Application number: CN202020675922.3U
Authority: CN
Inventors: 刘永仓; 吴忠铁; 沙国俊; 罗千翔; 刘蕊; 唐思婷; 庞建利
Original assignee: Northwest Minzu University
Current assignee: Northwest Minzu University
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-01-05
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a novel steel bar connecting assembly, which comprises two steel bars, a mechanical sleeve, clamping cones, a fixing screw, an extrusion head and an extrusion screw rod, wherein the clamping cones are positioned at the two axial end parts of the mechanical sleeve; the extrusion head is positioned in the middle of the inner part of the mechanical sleeve; the fixing screw penetrates through the mechanical sleeve and abuts against the clamping cone; the extrusion screw penetrates through the mechanical sleeve and is connected with the extrusion head. The clamping cone and the extrusion head in the steel bar sleeve are extruded through the fixing screw and the extrusion rod, so that the anchoring force of the clamping cone and the extrusion head on the steel bar is increased, and the steel bar component is safely and quickly connected. The prefabricated building component has the advantages of simple structure, easiness in building material acquisition and purchase, easiness in construction process operation, capability of reflecting the characteristics of green environmental protection, energy conservation, emission reduction, quickness and convenience of the prefabricated building, and capability of providing a new choice for connection of the prefabricated building components.

Description

Novel reinforcing steel bar connecting assembly

Technical Field

The utility model relates to a steel bar connection technical field among the building engineering specifically is a steel bar connection assembly.

Background

The assembly type building is a novel building mode which is greatly promoted by the market and the government at present, is a great change from the traditional building to the modern green building, and is a novel reserve for the vigorous development of the building industry and national capital construction. With the improvement of economic level and the enhancement of national environmental protection consciousness, the safety of buildings and the comfort level of houses are the direction of the research of the construction industry at home and abroad at present and are also the new challenges faced by vast professional construction personnel. In the construction engineering, especially in the fabricated building node connection technology, the connection technology of the exposed steel bars is related to the quality and the service life of the whole building body.

As for the connection of reinforcing bars, the connection methods commonly used in the construction at present include grouting sleeve connection, electroslag pressure welding, mechanical connection, and the like. The defects of filling and sleeving connection are that grouting construction is relatively complex, requirements on grouting equipment and personnel are high, an effective grouting connection strength detection means is lacked at present, and reliability cannot be guaranteed. Electroslag pressure welding requires an electric welder, and has the defect of inconvenient overhead operation. Compared with the filling sleeve technology, the mechanical connection has the defects of determined length of the connector, poor adaptability, extremely high requirements on centering and matching degree between the reinforcing steel bar and the connector and the like. In conclusion, the existing steel bar connection mode has the defects of complex process flow, more used industrial raw materials, large influence of subjective factors on connection quality and the like in construction. If the fabricated building needs to be popularized vigorously, the problems of the steel bar connection must be solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving among the prior art operation technology that the reinforcing bar exists and complicated, use industrial raw materials more, connection quality receives the shortcoming such as subjective factor influence great, provide a convenient operation, accessory are easy, connection quality is guaranteed novel reinforcing bar coupling assembling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel steel bar connecting assembly comprises two steel bars, a mechanical sleeve, clamping cones, fixing screws, extrusion heads and extrusion screw rods, wherein the clamping cones are positioned at two axial end parts of the mechanical sleeve; the extrusion head is positioned in the middle of the inner part of the mechanical sleeve; the fixing screw penetrates through the mechanical sleeve and abuts against the clamping cone; the extrusion screw penetrates through the mechanical sleeve and is connected with the extrusion head.

The utility model discloses a theory of operation does: and inserting the end parts of the two steel bars into the mechanical sleeve, positioning the end parts of the two steel bars at the extrusion head, and then sequentially screwing the extrusion screw and the fixing screw. By screwing the extrusion screw, the extrusion acting force is transmitted to the extrusion head, and the extrusion head extrudes the two steel bars to the same central axis and fixes the end parts of the steel bars. By screwing the fixing screw, the fixing screw is enabled to support the clamping cone and transmit acting force to the clamping cone, so that friction force is generated between the clamping cone and the steel bar, the steel bar is fixed, and the steel bar is prevented from sliding forwards and backwards.

As the utility model discloses modified technical scheme, the card awl is provided with the card line of laminating mutually with the reinforcing bar screw thread with the one side of reinforcing bar contact, increases the frictional force between card awl and the reinforcing bar.

As the utility model discloses modified technical scheme, the one side setting of extrusion head and reinforcing bar contact and the card line of reinforcing bar tip screw thread laminating mutually increase the frictional force between extrusion head and the reinforcing bar tip.

As the improved technical proposal of the utility model, the shape of the card cone is the inner size, the outer size or the two ends and the middle size. When the reinforcing steel bar is stressed, the engagement force between the clamping cone and the reinforcing steel bar is increased along with the increase of the tensile force.

As the utility model discloses modified technical scheme, the contact surface of two reinforcing bar tip is the inclined plane of laminating each other.

As a further improved technical scheme of the utility model, the contact surface of two reinforcing bar tip is the inclined plane of mutual interlock.

As another improved technical scheme of the utility model, the shape at the contact site of two reinforcing bar tip is the semicircle columnar order, and the contact surface of two reinforcing bar tip is the section of semicircle post.

As a further improved technical scheme of the utility model, the contact surface of two reinforcing bar tip is the section of interlock each other.

As a further improved technical proposal of the utility model, the shape of the occlusion part of the contact surface is triangular, square, trapezoidal or wavy line.

As the utility model discloses modified technical scheme, the card awl is 4 at least, set screw is 4 at least, the extrusion head is 2 at least, extrusion screw is 2 at least, is central symmetric distribution at mechanical sleeve tip and middle part respectively.

Advantageous effects

The utility model discloses a fixed screw and extrusion pole extrude card awl and extrusion head in to steel sleeve, make card awl and extrusion head increase to the anchor power of reinforcing bar to safe swiftly connecting reinforcement component. The structure is simple, and the building materials are easy to be bought. The construction process is easy to operate, and time and labor are saved. Technicians do not need to use concrete raw materials, chemical agents, electric welding equipment and the like, and only need to place the reinforcing steel bars in the correct positions in the reinforcing steel bar sleeve to screw the clamping cones and the extrusion heads. The method embodies the characteristics of green, environment-friendly, energy-saving, emission-reduction, rapidness and convenience of the assembly type building, and provides a new choice for the connection of the assembly type building components.

Drawings

FIG. 1 is a schematic structural section view of the present invention;

FIG. 2 is a schematic view of the present invention before installation;

FIG. 3 is a schematic view of the utility model after installation;

FIG. 4 is a schematic view of the ends and contact surfaces of two bars according to the present invention;

fig. 5 is another schematic view of the ends and contact surfaces of two steel bars of the present invention.

Detailed Description

In order to make the present invention more clearly understood by those skilled in the art, the present invention will now be described in detail with reference to the following detailed description and the accompanying drawings.

The utility model discloses a reinforcing bar coupling assembling, including two reinforcing bars 4, mechanical sleeve 5, card awl 1, extrusion head 6, fixed screw 3, extrusion screw 2.

The clamping cones 1 are positioned at two axial ends of the mechanical sleeve 5. The one side of card awl 1 and the contact of reinforcing bar 4 is provided with the card line of laminating mutually with reinforcing bar 4 screw thread, increases the frictional force between card awl 1 and the reinforcing bar 4.

The extrusion head 6 is located in an intermediate position inside the mechanical sleeve 5. The one side of extrusion head 6 and the contact of reinforcing bar 4 sets up the card line of laminating mutually with 4 tip screw threads of reinforcing bar, increases the frictional force between extrusion head 6 and the 4 tip of reinforcing bar.

The fixing screw 3 vertically penetrates through the mechanical sleeve 5 and abuts against the clamping cone 1. Through screwing up set screw 3, make set screw 3 support card awl 1 and to the transmission effort of card awl 1, make and produce frictional force between card awl 1 and the reinforcing bar 4 to fixed reinforcing bar 4 prevents that reinforcing bar 4 from sliding around.

The extrusion screw 2 vertically passes through the mechanical sleeve 5 and is connected with the extrusion head 6. By tightening the extrusion screw 2, the extrusion force is transmitted to the extrusion head 6, thereby fixing the end of the reinforcing bar 4.

The number of the clamping cones 1 and the number of the fixing screws 3 are at least 4, the number of the extrusion heads 6 and the number of the extrusion screws 2 are at least 2, and the clamping cones and the extrusion screws are respectively distributed at the end part and the middle part of the mechanical sleeve 5 in a central symmetry manner. Two reinforcing steel bars 4 are extruded to the same central axis by screwing the fixing screws 3 and the extrusion screw rods 2.

The shape of the bayonet cone 1 is big inside and small outside or big at two ends and small in the middle. When the reinforcing steel bar 4 is stressed, the engagement force between the clamping cone 1 and the reinforcing steel bar 4 is increased along with the increase of the tensile force.

The contact surfaces of the ends of the two reinforcing bars 4 may be inclined surfaces that are attached to each other, further, inclined surfaces that are engaged with each other, and preferably, inclined surfaces having an angle of 45 °. Further, the contact portion of the ends of the two reinforcing bars 4 may be formed in a semi-cylindrical shape, and the contact surface of the ends of the two reinforcing bars 4 may be a semi-cylindrical cross section, and further, a cross section in which the ends are engaged with each other. The shape of the contact surface occlusion part can be triangular, square, trapezoidal or wavy line-shaped and the like, and all rough surfaces capable of increasing friction force are formed.

The utility model discloses an operation mode and theory of operation do: two ends of the steel bar sleeve 5 are inserted into two ribbed steel bars 4 with 45-degree oblique sections or semi-cylindrical end parts, so that the two ends of the steel bars 4 are connected in a staggered manner. The extrusion screw 2 is rotated, and the extrusion head 6 extrudes the staggered reinforcing steel bars 4 to the same central axis and generates relative displacement. Then the fixing screw 3 is rotated to screw the clamping cone 1, teeth on the clamping cone 1 play a role in restraining the surface of the ribbed steel bar 4, a positive acting force is generated between the surface of the steel bar 4 and teeth of the clamping cone 1, and the steel bar 4 generates a biting force on the rough ribbed surface of the steel bar 4 by virtue of the positive acting force. Because the card awl 1 is mobile with being connected between the section of thick bamboo wall, the shape of card awl 1 is little outside big or in the middle of the both ends is big for 4 atress backs of reinforcing bar, the interlock will increase along with tensile increase, further improve the utility model discloses connecting the effort to the reinforcing bar.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a novel reinforcing bar coupling assembling, includes two reinforcing bars, mechanical sleeve, its characterized in that: the mechanical sleeve is characterized by also comprising clamping cones, fixing screws, extrusion heads and extrusion screw rods, wherein the clamping cones are positioned at two axial end parts of the mechanical sleeve; the extrusion head is positioned in the middle of the inner part of the mechanical sleeve; the fixing screw penetrates through the mechanical sleeve and abuts against the clamping cone; the extrusion screw penetrates through the mechanical sleeve and is connected with the extrusion head.

2. The novel rebar connecting assembly according to claim 1, wherein: the one side of card awl and reinforcing bar contact is provided with the card line of laminating mutually with the reinforcing bar screw thread.

3. The novel rebar connecting assembly according to claim 1, wherein: and the surface of the extrusion head, which is contacted with the steel bar, is provided with clamping threads which are attached to the threads at the end part of the steel bar.

4. The novel rebar connecting assembly according to claim 1, wherein: the shape of the blocking cone is big inside and small outside or big at two ends and small in the middle.

5. The novel rebar connecting assembly according to claim 1, wherein: the contact surfaces of the two ends of the reinforcing steel bars are mutually attached inclined surfaces.

6. The novel rebar connecting assembly according to claim 5, wherein: the contact surfaces of the two steel bar ends are mutually meshed inclined surfaces.

7. The novel rebar connecting assembly according to claim 1, wherein: the contact part of the two steel bar ends is in a semi-cylindrical shape, and the contact surface of the two steel bar ends is in a semi-cylindrical section.

8. The novel rebar connecting assembly according to claim 7, wherein: the contact surfaces of the two steel bar ends are mutually meshed sections.

9. A novel rebar connecting assembly as claimed in claim 6 or claim 8, wherein: the shape of the contact surface occlusion part is triangular, square, trapezoidal or wavy line.

10. The novel rebar connecting assembly according to claim 1, wherein: the number of the clamping cones is at least 4, the number of the fixing screws is at least 4, the number of the extrusion heads is at least 2, and the number of the extrusion screw rods is at least 2, and the clamping cones are respectively distributed at the end part and the middle part of the mechanical sleeve in a central symmetry manner.