CN210421649U

CN210421649U - Steel bar connector

Info

Publication number: CN210421649U
Application number: CN201921238445.8U
Authority: CN
Inventors: 柴海明
Original assignee: Individual
Current assignee: Chai Haiming
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-28
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a steel bar connector, including the outer sleeve, the inside both ends of outer sleeve respectively are equipped with a set of fastening subassembly, inside middle part is equipped with elastic component, and fastening subassembly is in chucking reinforcing bar under the elastic component effect, elastic component include coil spring and separate and keep off the piece, separate and keep off the piece setting in coil spring axial middle part position department. The utility model discloses a keep off the piece from having separating among the elastic component, use behind the steel bar connector, need not install on the outer sleeve of steel bar connector and separate and keep off the piece, consequently simplified the structure of outer sleeve, when guaranteeing the steel bar connection performance, reduced steel bar connector's overall cost.

Description

Steel bar connector

Technical Field

The utility model relates to a building technical field, concretely relates to steel bar connector.

Background

The steel bars are produced by a hot rolling process, and are called round steel bars when the steel bars have a circular cross-section, and are called ribbed steel bars when the steel bars have ribbing on their longitudinal surfaces, which ribbing is used to promote anchoring adhesion between the steel bars and surrounding materials such as concrete.

There are three common connection methods between two adjacent ribbed steel bars:

1) two reinforcing bars are lapped with a proper length and then bound by binding wires, so that enough force can be transferred from one reinforcing bar to the other reinforcing bar.

2) Two steel bars are lapped and then welded, and the welding part can directly transmit force, so that the building length of the steel bars can be shorter.

3) Mechanical connections, as disclosed in the following documents:

patent document 1-US4033502A (1977.7.5) which contains two reinforcing bars in an exothermic molten compound in a cylindrical chamber, and joins the two reinforcing bars together by chemically melting a metal, in a manner which is critical to the operator;

patent document 2-CN1298995A (2001.6.13), which includes a tubular fastener that fastens two bars with a fastening nut, and requires a tool such as a wrench for assisting operation;

patent document 3-CN206859523U (2018.1.9), the apparatus includes a sleeve, a partition is provided in the center of the sleeve, clamping members and a spring are provided on both sides of the partition, the clamping members clamp the steel bars with ribs inside under the action of the spring, and the two steel bars are connected by the sleeve; similarly, patent document 4-KR101654150B1 (2016.9.9), patent document 5-KR101654145B1 (2016.9.9), and patent document 6-KR101951882B1 (2019.2.25) are also included.

Among the above-described systems, patent documents 3, 4, 5, and 6 are most easily and conveniently handled in use, and have the lowest labor hour and labor cost in field construction, and thus are widely used. These connectors have a spacer fixed to the center of the sleeve to allow two reinforcing bars to be inserted into the sleeve at substantially the same depth to ensure the reliability of the reinforcing bar connection. This design complicates the construction of the sleeve and reduces reliability.

The technical problem that this application was solved is the structure of simplifying above-mentioned telescopic reinforcing bar connector.

SUMMERY OF THE UTILITY MODEL

In order to realize the connection of ribbed steel bar fast, firmly, reduce the cost of connector simultaneously, the utility model provides a steel bar connector.

The utility model adopts the technical scheme as follows: a steel bar connector comprises an outer sleeve, wherein a group of fastening components are respectively arranged at two ends of the inner part of the outer sleeve, an elastic component is arranged in the middle of the inner part of the outer sleeve, the fastening components clamp steel bars under the action of the elastic components, the elastic components comprise spiral springs and blocking pieces, and the blocking pieces are arranged in the middle of the spiral springs in the axial direction.

The utility model has the advantages that: the utility model discloses a from separating that has a body structure in the elastic component and keeping off the piece, use behind the steel bar connector, need not install on the outer sleeve of steel bar connector and separate and keep off the piece, consequently simplified the structure of outer sleeve, when guaranteeing the steel bar connection performance, reduced steel bar connector's overall cost.

Preferably: the barrier member is disposed at a central position in the axial direction of the coil spring.

Preferably: the spiral spring comprises a left spring body and a right spring body which are concentrically arranged, and the left spring body and the right spring body are connected into a whole through a transverse spring wire; the transverse spring wire forms the blocking piece, and the left spring body, the right spring body and the transverse spring wire form a special-shaped spring.

Preferably: the spiral spring comprises a left spring body and a right spring body which are concentrically arranged, the left spring body and the right spring body are connected into a whole through a middle spring body, and the middle spring body is in a dumbbell shape with the diameter being large at two ends and small in the middle; the middle spring body forms the blocking piece, and the left spring body, the right spring body and the middle spring body form a reducing spiral spring.

Preferably: the spiral spring comprises a left spring body and a right spring body which are arranged concentrically, a partition plate is arranged between the left spring body and the right spring body, and the partition plate is integrated with the left spring body and the right spring body through splicing, tight fitting, welding or injection molding.

Preferably: the both ends of outer sleeve are tip little, the big taper hole in middle, the fastening component includes the jack catch of two at least lamellas form, the outer wall of jack catch be the conical surface and with the taper hole at outer sleeve both ends matches, the inner wall of jack catch is equipped with the draw-in groove of overhead kick form.

Preferably: the fastening component is provided with an accommodating ring groove of the elastic component at one end close to the elastic component.

Preferably: the outer sleeve is formed by splicing a first cylinder body and a second cylinder body, and the first cylinder body is connected with the second cylinder body through threads.

Preferably: and the outer surfaces of the first cylinder body and the second cylinder body are both provided with mounting process grooves.

Preferably: and annular flanges which are arranged inwards are arranged at pipe orifices at two ends of the outer sleeve.

Drawings

Fig. 1 is a schematic view of a first embodiment of the present invention.

Fig. 2 is an exploded view of a first embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a first embodiment of the present invention.

Fig. 4 is a schematic diagram of an elastic assembly according to an embodiment of the present invention.

Fig. 5 is a schematic view of a transverse spring wire marked according to a first embodiment of the present invention.

Fig. 6 is a schematic view of a first cylinder in the first embodiment of the present invention.

Fig. 7 is a schematic view of a fastening assembly according to a first embodiment of the present invention.

Fig. 8 is a schematic view of an elastic member according to a second embodiment of the present invention.

Fig. 9 is a schematic view of an elastic assembly according to a third embodiment of the present invention.

Fig. 10 is an exploded view of the elastic member according to the third embodiment of the present invention.

Fig. 11 is a schematic view of an elastic assembly according to a fourth embodiment of the present invention.

100-elastic component, 101-left spring body, 102-right spring body, 103-transverse spring wire, 104-middle spring body, 105-partition plate, 106-plug part, 200-outer sleeve, 201-first cylinder, 202-second cylinder, 203-installation process groove, 204-annular flange, 300-fastening component, 301-claw, 302-clamping groove and 303-containing ring groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

In the first embodiment, as shown in fig. 1 to 7, a connector for a ribbed steel bar includes an outer sleeve 200, a set of fastening components 300 are respectively disposed at two ends of the inner portion of the outer sleeve 200, an elastic component 100 is disposed at the middle portion of the inner portion, the fastening components 300 clamp the steel bar under the action of the elastic component 100, and the elastic component includes a coil spring and a barrier member disposed at the middle position of the coil spring in the axial direction. Specifically, the method comprises the following steps: the elastic component 100 is a cylindrical spring in shape and comprises a left spring body 101 and a right spring body 102 which are concentrically arranged and connected through a transverse spring wire 103, the left spring body 101, the right spring body 102 and the transverse spring wire 103 are made into a special-shaped spring by a spring steel wire, and the transverse spring wire 103 naturally forms a blocking piece; the two ends of the outer sleeve 200 are taper holes with small end parts and large middle parts, the fastening assembly 300 comprises at least two petal-shaped clamping jaws 301, the outer walls of the clamping jaws 301 are conical surfaces and are matched with the taper holes at the two ends of the outer sleeve 200, reverse hook-shaped clamping grooves 302 are formed in the inner walls of the clamping jaws 301, and the clamping grooves 302 are used for clamping ribbed steel bars.

The elastic component 100 of the first embodiment has the stopper with an integral structure, and after the elastic component is applied to the steel bar connector, the outer sleeve 200 of the steel bar connector does not need to be provided with the stopper, so that the structure of the outer sleeve 200 is simplified, the connection performance of the steel bar is ensured, and the overall cost of the steel bar connector is reduced.

In the first embodiment, as shown in fig. 9 and 11, the fastening assembly 300 is provided with a receiving groove 303 of the elastic member 100 at an end thereof facing the elastic member 100. The receiving ring groove 303 limits the radial position of the elastic member 100, and a plastic bracket in patent document 3 is omitted, thereby further simplifying the structure of the reinforcing bar connector and reducing the cost.

In the first embodiment, as shown in fig. 1 to 3 and 6, the outer sleeve 200 is formed by assembling a first cylinder 201 and a second cylinder 202, the first cylinder 201 and the second cylinder 202 are connected by a thread, and the outer surfaces of the first cylinder 201 and the second cylinder 202 are both provided with installation process grooves 203. The installation process groove 203 facilitates the clamping of a wrench or a robot, so that the outer sleeve 200 can be mechanically assembled, thereby improving the production efficiency.

In the first embodiment, as shown in fig. 3 and 6, the nozzles at both ends of the outer sleeve 200 are provided with inwardly disposed annular flanges 204. The annular flange 204 limits the axial position of the fastening assembly 300, and prevents a certain claw 301 in the fastening assembly 300 from being punched out of the nozzle of the outer sleeve 200, thereby ensuring the reliability of the clamping of the ribbed steel bar.

In one embodiment, to ensure uniform force between two bars connected by the bar connector, the transverse spring wire 103 is generally disposed at the center of the elastic member 100.

In the second embodiment, as shown in fig. 8, the elastic assembly 100 also includes a left spring body 101 and a right spring body 102, which are connected into a whole through a middle spring body 104, the middle spring body 104 is a dumbbell shape with a large diameter at both ends and a small middle, the left spring body 101, the right spring body 102 and the middle spring body 104 are made of a spring steel wire into a variable diameter coil spring, and the inner diameter of the middle spring body 104 is smaller than the diameter of the steel bar, thereby naturally forming the barrier. The principle and the structure of the second structure of the embodiment are similar to those of the first structure of the embodiment, and the second structure of the embodiment has the advantages of simple structure and convenience in manufacturing and processing.

In the third embodiment, as shown in fig. 9 and 10, the left spring body 101 and the right spring body 102 of the elastic assembly 100 are two independent springs, which are assembled together through a partition 105, and two end surfaces of the partition 105 are provided with insertion portions 106 for being inserted and tightly fitted with the left spring body 101 and the right spring body 102. The elastic element 100 of the third embodiment is an assembly, which has a large number of structural parts, but the left spring body 101 and the right spring body 102 can be common cylindrical springs.

In the fourth embodiment, as shown in fig. 11, the left spring body 101 and the right spring body 102 of the elastic assembly 100 are two independent springs, and they are welded together by the partition 105. The fourth embodiment is similar to the third embodiment, and parts are simpler and firmer, and the defects are that welding is needed and labor cost is increased. In addition, the partition 105 can also be made of a plastic part and injection-molded by using a spring as an insert, so that the left spring body 101 and the right spring body 102 are made into a single spring, the whole elastic assembly 100 is firmer, and the injection molding cost is higher.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Obvious changes or variations coming within the spirit of the invention are intended to be covered by the scope of the invention.

Claims

1. The utility model provides a steel bar connector, includes the outer sleeve, the inside both ends of outer sleeve respectively are equipped with a set of tight subassembly, inside middle part and are equipped with elastic component, the tight subassembly is in chucking reinforcing bar under the elastic component effect, its characterized in that: the elastic component comprises a spiral spring and a blocking piece, and the blocking piece is arranged at the middle position of the spiral spring in the axial direction.

2. The reinforcing bar connector according to claim 1, wherein: the barrier member is disposed at a central position in the axial direction of the coil spring.

3. The reinforcing bar connector according to claim 1, wherein: the spiral spring comprises a left spring body and a right spring body which are concentrically arranged, and the left spring body and the right spring body are connected into a whole through a transverse spring wire; the transverse spring wire forms the blocking piece, and the left spring body, the right spring body and the transverse spring wire form a special-shaped spring.

4. The reinforcing bar connector according to claim 1, wherein: the spiral spring comprises a left spring body and a right spring body which are concentrically arranged, the left spring body and the right spring body are connected into a whole through a middle spring body, and the middle spring body is in a dumbbell shape with the diameter being large at two ends and small in the middle; the middle spring body forms the blocking piece, and the left spring body, the right spring body and the middle spring body form a reducing spiral spring.

5. The reinforcing bar connector according to claim 1, wherein: the spiral spring comprises a left spring body and a right spring body which are arranged concentrically, a partition plate is arranged between the left spring body and the right spring body, and the partition plate is integrated with the left spring body and the right spring body through splicing, tight fitting, welding or injection molding.

6. The reinforcing bar connector according to claim 1, wherein: the both ends of outer sleeve are tip little, the big taper hole in middle, the fastening component includes the jack catch of two at least lamellas form, the outer wall of jack catch be the conical surface and with the taper hole at outer sleeve both ends matches, the inner wall of jack catch is equipped with the draw-in groove of overhead kick form.

7. The reinforcing bar connector according to claim 1, wherein: the fastening component is provided with an accommodating ring groove of the elastic component at one end close to the elastic component.

8. The reinforcing bar connector according to claim 1, wherein: the outer sleeve is formed by splicing a first cylinder body and a second cylinder body, and the first cylinder body is connected with the second cylinder body through threads.

9. The reinforcing bar connector according to claim 8, wherein: and the outer surfaces of the first cylinder body and the second cylinder body are both provided with mounting process grooves.

10. The reinforcing bar connector according to claim 1, wherein: and annular flanges which are arranged inwards are arranged at pipe orifices at two ends of the outer sleeve.