CN114108954A

CN114108954A - Steel bar mechanical connection standardization complete set device

Info

Publication number: CN114108954A
Application number: CN202111366969.7A
Authority: CN
Inventors: 周成功
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-01

Abstract

The invention provides a steel bar mechanical connection standardization complete set device, which comprises a first component and a second component which are connected, and further comprises a third component which is connected with the first component and the second component, wherein the first component or the second component is mechanically connected with two ends of the third component and two ends of the fourth component, and the third component and the fourth component are mechanically connected; the technical scheme of the invention is a novel building fitting technology which has wide applicability and relatively low cost, can conveniently and effectively connect two building fittings which are difficult to freely rotate and move, has short connecting length of the steel bars and cannot meet the overlapping requirement of the steel bars, has small space of a steel bar joint and cannot adopt a welding mode or have large welding workload.

Description

Steel bar mechanical connection standardization complete set device

Technical Field

The invention relates to a steel bar mechanical connection standardization complete device of a building assembly in the field of civil engineering, in particular to a steel bar mechanical connection joint when a connected steel bar is difficult to freely rotate and move.

Background

In the field of civil engineering in the prior art, steel bar engineering is a basic framework formed by building structures, and a steel bar connection mode and connection measures are key technologies in civil engineering.

At present, the main modes of steel bar connection in the field include steel bar binding connection, steel bar welding, steel bar mechanical connection and the like, and of course, different steel bar connection modes are respectively suitable for certain specific environmental conditions of engineering construction.

Under some engineering construction conditions, if two steel bars needing to be connected are difficult to freely rotate and move, the connection length of the steel bars is short, the steel bar overlapping requirement cannot be met, the space where a steel bar joint is located is small, and a welding form cannot be basically adopted or the welding workload is large, the existing steel bar connection form cannot economically and suitably solve the problem of steel bar connection. With the wide popularization and great popularity of the fabricated building, the construction conditions of the engineering with the harsh construction limitation condition are more and more common in the actual engineering construction.

In view of the above problems, a connection joint method such as a steel bar grouting sleeve has been developed in the field at home and abroad, but the steel bar grouting sleeve joint method in the prior art still has high cost, and if the length requirement of the steel bar joint is still relatively long when the steel bar grouting sleeve joint method is applied to horizontal steel bar connection, the applicability in practical construction engineering is still relatively poor.

In view of the above problems, the invention of a new reinforcing steel bar, which has wide applicability and relatively low cost, can conveniently and effectively connect two reinforcing steel bars which are difficult to freely rotate and move, has short connecting length of the reinforcing steel bars and cannot meet the requirement of overlapping of the reinforcing steel bars, has small space of a reinforcing steel bar joint and cannot adopt a welding mode or has large welding workload is imperative.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a new type of standardized set of devices for mechanical connection of reinforcing bars. The steel bar mechanical connection standardization complete device has the advantages of simple and reasonable structure, strong operability, good applicability, low cost and capability of shortening the construction and installation time of large buildings.

In order to achieve the above and other related objects, the present invention provides a standardized set of apparatus for mechanical connection of reinforcing bars, each of which is connected to an end of a reinforcing bar, and comprises a first assembly and a second assembly connected to and externally connected to ends of the reinforcing bar; the first component or the second component is mechanically connected to one end of the third component and one end of the fourth component, and the third component is mechanically connected with the fourth component.

The steel bar mechanical connection standardization complete device is characterized in that the first assembly and the second assembly of the steel bar mechanical connection standardization complete device comprise long screws, and the long screws are welded at the end parts of steel bar pieces respectively; the other end of the long screw of the first component is provided with a T-shaped end, the other end of the long screw of the second component is provided with a T-shaped end with a reduced section, the third component comprises an internal thread sleeve, and the fourth component comprises an external thread sleeve.

The steel bar mechanical connection standardization complete set device is characterized in that the first component and the second component comprise long screws, and concave connecting grooves in threaded connection with the end parts of the steel bar pieces are formed in one ends of the long screws; the long screw rod other end of first subassembly is provided with T type end, the long screw rod other end of second subassembly is provided with the T type end of reducing the cross section, the third subassembly includes the internal thread sleeve, the fourth subassembly includes the external thread sleeve.

The steel bar mechanical connection standardization complete device is characterized in that the internal thread sleeve is connected with the T-shaped end of the long screw rod of the first component in a clamping mode, the internal thread sleeve is connected with the external thread sleeve of the fourth component in a threaded mode, and the external thread sleeve of the fourth component is connected to the long screw rod of the second component in a sleeved mode and pushes against the T-shaped end with a compact small cross section.

The steel bar mechanical connection standardization complete device is characterized in that the T-shaped end of the first assembly long screw rod is connected with the internal thread sleeve of the third assembly in a clamping mode, clamping portions of the T-shaped end of the first assembly long screw rod and the end portion of the internal thread sleeve of the third assembly can be provided with clamping grooves which are meshed with each other, or the clamping grooves can not be provided, and the clamping grooves are used for limiting the rotation of the internal thread sleeve.

The steel bar mechanical connection standardization complete device is characterized in that the first assembly and the second assembly comprise nuts which are respectively connected with the end parts of the steel bar pieces which are subjected to the pier-rounded thread rolling; the third subassembly includes the internal thread sleeve, the fourth subassembly includes the external screw thread sleeve, the nut of connecting in the first subassembly is held to internal thread sleeve one end card, the other end with the external screw thread sleeve threaded connection of fourth subassembly, the external screw thread sleeve of fourth subassembly cup joints on the reinforcing bar spare and pushes up the nut of the second subassembly of reinforcing bar spare tip.

The steel bar mechanical connection standardization complete device is characterized in that the periphery of the diameter expansion part of the external thread sleeve can be set to be hexagonal, so that the wrench can operate conveniently, and the end part of the external thread sleeve can be provided with a tooth groove which is meshed with a matched gear to realize electric screwing.

As mentioned above, the steel bar mechanical connection standardization complete set device has the following beneficial effects:

the invention can realize the reliable connection of two precast concrete components without the grouting material purely depending on mechanical connection, has concise and various mechanical connection modes and good connection effect, and can effectively overcome the defects of short connecting reinforcing steel bars or other defects; moreover, the grouting material needs to be poured into the sleeve in the grouting sleeve connection mode in the technical scheme of the prior art, and the technology of the patent does not need. The invention can realize the reliable connection of the steel reinforcement cage and the steel reinforcement in the formed steel reinforcement framework by means of mechanical connection.

So, this patent technique can be more nimble adaptation site operation's various condition, and the expense is low, effectual, easy operation.

Drawings

Fig. 1 is a schematic structural diagram of a steel bar mechanical connection standardized complete set of device according to a first embodiment of the invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the steel bar mechanical connection standardized complete set device.

Fig. 3 is a schematic structural view of a third embodiment of the steel bar mechanical connection standardized complete set device.

Element number description:

the first embodiment is as follows: the steel bar mechanical connection standardized complete device 100, a first component 101, a second component 102, a third component 103, a fourth component 104, a first component long screw 1010, a T-shaped end 1011, a T-shaped end clamping groove 10110, a second component long screw 1020, a T-shaped end 1021 with a reduced section, a third component internal thread sleeve 1031, an internal thread sleeve clamping groove 10310, a fourth component external thread sleeve 1041, a connecting steel bar 1001 and a connecting steel bar 1002.

Example two: the steel bar mechanical connection standardization complete device 200, a first assembly 201, a second assembly 202, a third assembly 203, a fourth assembly 204, a first assembly long screw 2010, a T-shaped end 2011, a T-shaped end clamping groove 20110, a first assembly long screw female connecting groove 2012, a second assembly long screw 2020, a reduced section T-shaped end 2021, a second assembly long screw female connecting groove 2022, a third assembly internal thread sleeve 2031, an internal thread sleeve clamping groove 20310, a fourth assembly external thread sleeve 2041, a connecting steel bar 2001 and a connecting steel bar 2002.

Example three: the steel bar mechanical connection standardization complete set 300, a first component 301, a second component 302, a third component 303, a fourth component 304, a first component nut 3010, a second component nut 3020, a third component internal thread sleeve 3031, a fourth component external thread sleeve 3041, a connecting steel bar 3001 and a connecting steel bar 3002.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Referring now to fig. 1-3, 3 embodiments of the present invention are illustrated, as will be described in detail below.

The first embodiment is as follows:

as shown in fig. 1, a standardized set of device 100 for mechanical connection of reinforcing bars when the connected reinforcing bars are difficult to rotate freely, which is commonly called a standardized connection joint produced in a set, is respectively connected to the reinforcing bar pieces: the end part of the connecting steel bar 1001 and the end part of the connecting steel bar 1002 comprise a first component 101 and a second component 102 which are respectively connected with the end part of an external steel bar in a welding way, and a third component 103 and a fourth component 104 which are respectively connected with the components 101 and the second component 102 in a mechanical way, wherein the first component comprises a first component long screw 1010, one end of the first component long screw 1010 is provided with a pier-thick head-T-shaped end 1011, and the inner sides of two ends of the T-shaped head of the T-shaped end 1011 can be provided with a T-shaped end clamping groove 10110 which is engaged and clamped with the third component 103; the second assembly comprises a second assembly long screw 1020, and one end of the second assembly long screw 1020 is provided with a T-shaped end 1021 with a upset head-reduced section; the third component 103 comprises an internal thread sleeve 1031, and an internal thread sleeve clamping groove 10310 which is engaged and clamped with the T-shaped head clamping groove 10110 can be arranged on the inner side of the end part of the internal thread sleeve 1031; the fourth component 104 includes an externally threaded sleeve 1041.

The standardized complete set of device 100 for mechanical connection of the steel bars in the embodiment is suitable for the condition that the external connection steel bars 1001 are immovable and non-rotatable and the connection steel bars 1002 are immovable and non-rotatable. In practical operation, the connected rebar 1001 and the connected rebar 1002 are connected by the mechanical snap action of the components, generally according to the following steps:

in a first step, the third assembly 103 is nested on the first assembly 101, and the fourth assembly 104 is nested on the second assembly 102;

secondly, welding the first assembly 101 with the connected steel bar 1001, and welding the second assembly 102 with the connected steel bar 1002, wherein the welding includes but is not limited to friction welding;

thirdly, the third component 103 is sleeved into the fourth component 104, and the external thread of the fourth component 104 is meshed and screwed with the internal thread of the third component 103 to achieve a specified screwing force; the external thread of the fourth component 104 and the internal thread of the third component 103 may be standard threads, for example: m30 x 2; the third element 103 abuts the enlarged head-T shaped end 1011 of the first element 101 and the fourth element 104 abuts the enlarged head-reduced cross-section T shaped end 1021 of the second element 102.

Wherein, the contact position of the first component 101 and the third component 103 can be provided with tooth sockets or clamping grooves with different shapes to further strengthen and fix the third component 103, so that when the third component 103 is screwed with the fourth component 104, the third component 103 does not rotate, and the practical operation on the site of the construction site is convenient. Certainly, it is also possible that no tooth groove or slot is provided, and when the third component 103 and the fourth component 104 are screwed, other external force means need to be adopted to fix the third component 103.

The diameter of the right side of the fourth component 104 is enlarged, and the periphery of the right side of the fourth component can be set to be polygonal such as hexagonal, which is convenient for operation and fastening of operation tools such as a wrench, and similarly, the end of the external thread sleeve 1041 can be provided with a tapered tooth socket which can be meshed with a matched tapered gear to realize electric tightening; of course, the diameter of the fourth component 104 may be enlarged, and a rectangular tooth socket may be formed on the outer circumference of the fourth component, and the fourth component may be engaged with a mating electric gear to realize electric tightening.

The outer side of the upset head of the second component 102 adopts a reduced section form to form a T-shaped end 1021 with a reduced section, so that the third component 103 can be conveniently sleeved in the T-shaped end, and meanwhile, the size and position deviation between the first component 101 and the second component 102 can be allowed; when the upset-T head 1011 of the first module 101 is mounted with a gap with the upset-reduced section T head 1021 of the second module 102, a circular spacer can be placed to eliminate the gap, the spacer diameter is equal to the contact surface diameter of the second module 102, and the thickness of the spacer can be set as desired, for example, a 1-3 mm spacer or a combination thereof.

Example two:

as shown in fig. 2, the steel bar mechanical connection standardization complete set 200 is respectively connected to the ends of the connecting steel bar 2001 and the connecting steel bar 2002, and includes a first component 201 and a second component 202 which are respectively connected to the ends of the external steel bar member by threads, and a third component 203 and a fourth component 204 which are respectively connected to the components 201 and the second component 202 by the threads, wherein the first component 201 includes a first component long screw 2010, one end of the first component long screw 2010 is provided with a heading-T-shaped end 2011, the inner sides of two ends of the T-shaped end 2011 of the T-shaped end can be provided with a T-shaped end clamping groove 20110 which is engaged with the third component 203, and the other end of the first component long screw 2010 is provided with a first component long screw connecting groove 2012 which is connected to the connecting steel bar female threads 2001; the second assembly 202 comprises a second assembly long screw 2020, one end of the second assembly long screw 2020 is provided with a T-shaped end 2021 with a upset head and a reduced cross section, and the other end of the second assembly long screw 2020 is provided with a second assembly long screw female connecting groove 2022 in threaded connection with the connecting steel bar 2002; (ii) a The third assembly 203 comprises an internal thread sleeve 2031, the internal thread sleeve 2031 is sleeved on the first assembly long screw 2010, and the inner side of the end part of the internal thread sleeve 2031 can be provided with an internal thread sleeve clamping groove 20310 engaged and clamped with the T-shaped end clamping groove 20110; the fourth component 204 includes an externally threaded sleeve 2041.

In practical construction, the steel bar mechanical connection standardized complete set of apparatus 200 of this embodiment is suitable for the case that the connecting steel bar 2001 is immovable and non-rotatable, and the connecting steel bar 2002 is immovable and non-rotatable, and the complete set of preparation conditions before construction may be:

firstly, the ends of the connected

steel bars

2001 and 2002 are subjected to thread machining; screwing the first assembly 201 processed in a set on the connected steel bar 2001 through the first assembly long screw concave connecting groove 2012, and screwing the second assembly 202 processed in a set on the connected steel bar 2002 through the second assembly long screw concave connecting groove 2022, wherein the screwing force reaches a specified screwing force;

secondly, sheathing the third component 203 into a fourth component 204, and meshing and screwing the external thread of the fourth component 204 and the internal thread of the third component 203 to achieve a specified screwing force; the third assembly 203 abuts the upset-T head 2011 of the first assembly 201 and the fourth assembly 204 abuts the upset-reduced section T head 2021 of the second assembly 202. The connected reinforcing bar 2001 and the connected reinforcing bar 2002 are connected by mechanical engagement of the components.

Wherein, the contact position of the first component 201 and the third component 203 can be provided with tooth sockets or clamping grooves with different shapes so as to further strengthen and fix the third component 203, so that when the third component 203 and the fourth component 204 are screwed mutually, the third component 203 does not rotate, and the practical operation on the construction site is convenient. Certainly, it is also possible not to provide a spline or a slot, and when the third component 203 and the fourth component 204 are screwed, other external force means need to be adopted to fix the third component 203.

The diameter of the right side of the fourth component 204 is enlarged, and the periphery of the right side of the fourth component can be set to be polygonal such as hexagonal, which is convenient for operation and fastening of operation tools such as a wrench, and similarly, the end of the external thread sleeve 2041 can be provided with a tapered tooth socket which can be meshed with a matched tapered gear to realize electric tightening; of course, the diameter of the fourth component 204 may be enlarged, and a rectangular tooth socket may be formed on the outer circumference of the fourth component, and the fourth component may be engaged with a mating electric gear to realize electric tightening.

The outer side of the upset head of the second component 202 adopts a reduced section form to form a T-shaped end 2021 with a reduced section, so that the third component 203 can be conveniently sleeved in the T-shaped end, and meanwhile, the size and position deviation between the first component 201 and the second component 202 can be allowed; when the upset-T head 2011 of the first component 201 and the upset-reduced section T head 2021 of the second component 202 are installed with a gap, a circular gasket can be placed to eliminate the gap, the diameter of the gasket is equal to that of the contact surface of the second component 202, and the thickness of the gasket can be set according to needs, for example, a gasket of 1-3 mm or a combination thereof.

Example three:

as shown in fig. 3, the steel bar mechanical connection standardization unit 300 is respectively connected to the ends of the connecting steel bar 3001 and the connecting steel bar 3002, and includes a first module 301 and a second module 302 respectively connected to the ends of the external steel bar and screwed, and a third module 303 and a fourth module 304 respectively connected to the

modules

301 and 302, wherein the first module 301 includes a first module nut 3010, the first module nut 3010 is screwed to the end of the connecting steel bar 3001, and the end of the connecting steel bar 3001 is processed by thread rolling; the second assembly 302 comprises a second assembly nut 3020, the second assembly nut 3020 is screwed with the end of the connecting bar 3002, and the end of the connecting bar 3002 is rolled; the third component 303 comprises an internal thread sleeve 3031, and the internal thread sleeve 3031 is sleeved on the connecting steel bar 3001 and clamped on the first component nut 3010; the fourth component 304 includes an external thread sleeve 3041, the external thread sleeve 3041 is sleeved on the connecting steel bar 3002 and tightly supports against the second component nut 3020, and the internal thread sleeve 3031 and the external thread sleeve 3041 are in threaded connection to realize effective connection of the connecting steel bar 3001 and the connecting steel bar 3002.

The diameter of the right side of the fourth component 304 is enlarged, and the periphery of the right side of the fourth component can be set to be polygonal such as hexagonal and the like, so that an operation tool such as a wrench and the like can be conveniently operated and fastened; of course, the diameter of the fourth component 304 is enlarged, and a rectangular tooth socket may be formed on the outer periphery of the fourth component, and the fourth component may be engaged with a mating electric gear to realize electric tightening.

The ends of the connected steel bar 3001 and the connected steel bar 3002 are rounded, and the length of the rounded pier meets the length of the nesting of the third assembly internal thread sleeve 3031 and the fourth assembly external thread sleeve 3041; the outer side of the second component nut 302 adopts a reduced cross section form to form a T-shaped nut end 3020 with a reduced cross section, so that the third component 303 can be conveniently sleeved in the nut, and meanwhile, the size and position deviation between the first component 301 and the second component 302 can be allowed; when a gap is formed between the nut 3010 of the first component 301 and the nut 3020 of the second component 302, the length of screwing the first component nut 3010 or the second component nut 3020 can be adjusted so that the gap is eliminated, but the length of the first component thread 3010 in the thread engagement with the steel bar 3001 should meet the force transmission requirement, and the length of the second component thread 3020 in the thread engagement with the steel bar 3002 should meet the force transmission requirement.

The welding includes, but is not limited to, friction welding, which is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source. Friction welding generally consists of four steps: 1. converting mechanical energy into heat energy; 2. plastic deformation of the material; 3. forging pressure under thermoplasticity; 4. and (4) intermolecular diffusion recrystallization. The biggest difference of friction welding compared with traditional fusion welding is that in the whole welding process, the temperature reached by the energy increase of the metal to be welded does not reach the melting point of the metal, namely the metal is in a forging-like solid phase connection realized in a thermoplastic state. Compared with the traditional fusion welding, the friction welding has the advantages of high welding joint quality, high welding efficiency, stable quality, good consistency and the like, can achieve the strength of welding seams and the strength of base materials and the like, and can realize the welding of dissimilar materials.

In a word, the embodiment can clearly find that compared with the grouting sleeve connection mode in the prior art, the grouting sleeve connection method has the advantages that reliable connection of two precast concrete members, reinforcement cages or other reinforcement pieces can be realized by mechanical connection without grouting materials, the connection mode is simple, the effect is good, and various connecting reinforcement short or other defects can be effectively overcome; so, this patent technique can be more nimble adaptation site operation's various condition, and the expense is low, effectual, easy operation.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A standardized complete set of device for mechanically connecting reinforcing steel bars is respectively connected with the ends of reinforcing steel bar pieces and is characterized by comprising a first component and a second component which are respectively connected with the ends of the reinforcing steel bar pieces; and a third assembly and a fourth assembly mechanically connecting the first assembly and the second assembly, the third assembly and the fourth assembly being mechanically connected.

2. The apparatus as claimed in claim 1, wherein the first and second assemblies comprise long screws welded to ends of the reinforcing bars, respectively; the other end of the long screw of the first component is provided with a T-shaped end, the other end of the long screw of the second component is provided with a T-shaped end with a reduced section, the third component comprises an internal thread sleeve, and the fourth component comprises an external thread sleeve.

3. The apparatus as claimed in claim 1, wherein the first and second members comprise a long screw having a female coupling groove formed at one end thereof for screw-coupling with the end of the reinforcing bar member; the long screw rod other end of first subassembly is provided with T type end, the long screw rod other end of second subassembly is provided with the T type end of reducing the cross section, the third subassembly includes the internal thread sleeve, the fourth subassembly includes the external thread sleeve.

4. The steel bar mechanical connection standardization complete set of device as claimed in any one of claims 2 or 3, wherein the internal thread sleeve is connected with the T-shaped end of the long screw of the first component in a clamping manner, the internal thread sleeve is connected with the external thread sleeve of the fourth component in a threaded manner, and the external thread sleeve of the fourth component is sleeved on the long screw of the second component and pushes against the T-shaped end with a compact small section.

5. The apparatus as claimed in claim 4, wherein the T-shaped end of the long screw rod of the first assembly is engaged with the internally threaded sleeve of the third assembly, and the engaging portions of the T-shaped end of the long screw rod of the first assembly and the end of the internally threaded sleeve of the third assembly are provided with engaging slots.

6. The apparatus as claimed in claim 1, wherein the first and second assemblies comprise nuts respectively coupled to ends of the bar members after being round-threaded; the third subassembly includes the internal thread sleeve, the fourth subassembly includes the external screw thread sleeve, the nut of connecting in the first subassembly is held to internal thread sleeve one end card, the other end with the external screw thread sleeve threaded connection of fourth subassembly, the external screw thread sleeve of fourth subassembly cup joints on the reinforcing bar spare and pushes up the nut of the second subassembly of reinforcing bar spare tip.

7. A steel bar mechanical connection standardization complete set as claimed in any one of claims 2, 3 or 6, wherein the outer circumference of the diameter expansion part of the external thread sleeve is arranged to be hexagonal for facilitating wrench operation, and the end part is provided with a tooth socket for realizing electric tightening through meshing with a matched gear.