CN111364689A - Self-tensioning steel bar connector - Google Patents
Self-tensioning steel bar connector Download PDFInfo
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- CN111364689A CN111364689A CN202010299507.7A CN202010299507A CN111364689A CN 111364689 A CN111364689 A CN 111364689A CN 202010299507 A CN202010299507 A CN 202010299507A CN 111364689 A CN111364689 A CN 111364689A
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- sleeve
- self
- tensioning
- cavity
- steel bar
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
Abstract
A self-tensioning steel bar connector belongs to the technical field of building components. Comprises a sleeve with a sleeve cavity; the reinforcing steel bar end insertion depth reference limiting mechanism is arranged in the middle of the height direction of the sleeve cavity of the sleeve; the self-tensioning device comprises a first steel bar end self-tensioning mechanism I and a second steel bar end self-tensioning mechanism II, wherein the first steel bar end self-tensioning mechanism I is arranged in the sleeve cavity in a position corresponding to the upper end of the sleeve, and the second steel bar end self-tensioning mechanism II is also arranged in the sleeve cavity in a position corresponding to the lower end of the sleeve. The advantages are that: the structure is simplified and the operation during construction is convenient; is beneficial to the manufacture and assembly; the steel bar butt joint efficiency of a construction site is improved; the reliability of the butt joint of the ends of the reinforcing steel bars is ensured.
Description
Technical Field
The invention belongs to the technical field of building components, and particularly relates to a self-tensioning steel bar connector.
Background
The term "reinforcing bar coupler" is used to connect the ends of two reinforcing bars, and the reinforcing bars are mainly thread steel.
As is known in the art, the use of reinforced concrete is commonly required for various types of construction facilities above ground, underground or even underwater, without the use of the aforementioned thread steels. Prior to the pouring of concrete, a framework of rebars is constructed (a construction worker is accustomed to "tying bars"). If the original, i.e. traditional construction method is adopted, two deformed steel bars to be butted are welded and fixed to each other at the end parts in the process of constructing the steel reinforcement framework, and the method has the following self-evident defects: firstly, because welding equipment such as an electric welding machine needs power supply support, the welding equipment is critical to construction sites, for example, power supply must be led to the welding equipment at a steel bar butt joint station through a cable or a similar feed line, and the work of leading the power supply to the welding equipment is troublesome and has safety; secondly, welding needs to be operated by qualified personnel, so that the welding tool has the same criticality to operators; thirdly, the welding efficiency is relatively low, so that the progress of the project is influenced to a certain extent; fourthly, the operation intensity of welding workers is high, and the consistency of welding quality is difficult to guarantee.
The above disadvantages can be largely avoided by using the steel bar connector, and the technical information related to the steel bar connector can be found in the published Chinese patent documents, which are briefly listed as "a steel bar connection assembly" recommended by CN208830600U and "steel bar quick connector" provided by CN210032349U, because the two patent structures are split, namely, the steel bar quick connector consists of a first cylindrical sleeve, a second cylindrical sleeve and a sealing connection sleeve, when in use, one end of one steel bar of two steel bars to be butted is inserted into a first cylindrical sleeve cavity of the first cylindrical sleeve with threads on the inner wall, one end of the other steel bar of the two steel bars is inserted into a second cylindrical sleeve cavity of the second cylindrical sleeve with threads on the inner wall, and the sealing connection sleeve locks the opposite ends of the first cylindrical sleeve and the second cylindrical sleeve, not only is the connection efficiency and effect affected, but also the operation is relatively troublesome.
Typically, CN204878162U discloses "a locking sleeve structure for quick connection of steel bars, which is disclosed in the specification 0011 to 0013 of the patent: although the taper sleeve has the advantages of convenience in processing the inner thread taper sleeve and the outer thread taper sleeve, the overall structure is relatively complex, the inner thread taper sleeve and the outer thread taper sleeve are required to be connected into a whole in a threaded mode, operation is still troublesome, and overall strength is difficult to guarantee.
In view of the above-mentioned prior art, there is a need for improvement, and for this reason, the applicant has made an advantageous search and design, and has developed the technical solutions described below.
Disclosure of Invention
The invention aims to provide a self-tensioning steel bar connector which is beneficial to simplifying the structure, manufacturing and assembling, improving the steel bar butt joint efficiency on a construction site, remarkably reducing the operation strength of constructors and further improving the clamping reliability of the end parts of steel bars.
The task of the invention is achieved by a self-tensioning steel bar connector, which comprises a sleeve, a connecting piece and a clamping piece, wherein the sleeve is provided with a sleeve cavity; the reinforcing steel bar end insertion depth reference limiting mechanism is arranged in the middle of the height direction of the sleeve cavity of the sleeve; the self-tensioning device comprises a first steel bar end self-tensioning mechanism I and a second steel bar end self-tensioning mechanism II, wherein the first steel bar end self-tensioning mechanism I is arranged in the sleeve cavity in a position corresponding to the upper end of the sleeve, and the second steel bar end self-tensioning mechanism II is also arranged in the sleeve cavity in a position corresponding to the lower end of the sleeve.
In a specific embodiment of the invention, the reinforcing steel bar end insertion depth reference limiting mechanism comprises a first inner ring I, a second inner ring II and an inner ring isolation plate, wherein the inner ring isolation plate is arranged in the middle of the height direction of a sleeve cavity of the sleeve, the first inner ring I is arranged in the sleeve cavity, one end face, facing the inner ring isolation plate, of the first inner ring I is in contact with one upward side of the inner ring isolation plate, the second inner ring II is also arranged in the sleeve cavity, and one end face, facing the inner ring isolation plate, of the second inner ring II is in contact with one downward side of the inner ring isolation plate; the first steel bar end self-tensioning mechanism I arranged in the sleeve cavity at the position corresponding to the upper end of the sleeve is matched with one end face, deviating from the inner ring isolation plate, of the first inner ring I, and the second steel bar end self-tensioning mechanism II arranged in the sleeve cavity at the position corresponding to the lower end of the sleeve is matched with one end face, deviating from the inner ring isolation plate, of the second inner ring II.
In another specific embodiment of the invention, a sleeve cavity first inner wall thread i is formed on the upper end of the sleeve and on the sleeve cavity wall of the sleeve cavity, a sleeve cavity second inner wall thread ii is formed on the lower end of the sleeve and on the sleeve cavity wall of the sleeve cavity, the first steel bar end self-tensioning mechanism i matched with one end face of the first inner sleeve ring i away from the inner sleeve ring isolation plate is matched with the sleeve cavity first inner wall thread i, and the second steel bar end self-tensioning mechanism ii matched with one end face of the second inner sleeve ring ii away from the inner sleeve ring isolation plate is matched with the tube cavity second inner wall thread ii.
In another specific embodiment of the invention, the first rebar end self-tensioning mechanism i comprises an elastic limit washer, a pressing sleeve and a self-tensioning sleeve, the elastic limit washer is matched with one end face of the first inner ring i, which is far away from the inner ring isolation plate, a pressing sleeve external thread is formed on the outer wall of the pressing sleeve, the pressing sleeve external thread is matched with the first inner wall thread i of the sleeve cavity, a self-tensioning sleeve matching cavity is formed in the center of the pressing sleeve, the lower end of the self-tensioning sleeve is supported on one end face, back to the inner ring isolation plate, of the first inner ring i at a position corresponding to the elastic limit ring cavity of the elastic limit washer, and the upper end of the self-tensioning sleeve extends into the self-tensioning sleeve matching cavity and is in contact with the cavity wall of the self-tensioning sleeve matching cavity; a self-tensioning sleeve restraining ring is arranged between the elastic limiting washer and the pressing sleeve; the elastic limit washer is a rubber, nylon or polytetrafluoroethylene washer.
In a further specific embodiment of the present invention, the self-tensioning sleeve mating cavity is a conical cavity, the self-tensioning sleeve is a conical sleeve matching with the conical cavity, and a first fragile breaking groove i and a second fragile breaking groove ii are formed on the self-tensioning sleeve around the self-tensioning sleeve at intervals, the first fragile breaking groove i is formed from top to bottom, the second fragile breaking groove ii is formed from bottom to top, and the first fragile breaking groove i and the second fragile breaking groove ii form a spaced-apart interdigital relationship with each other.
In yet another embodiment of the present invention, the inner diameter of the upper portion of the self-tensioning sheath is greater than the inner diameter of the lower portion.
In a more specific embodiment of the invention, the second rebar end self-tensioning mechanism ii comprises an elastic washer, a pressing ring and a self-tensioning ring, the elastic washer is matched with one end face, away from the inner ring partition plate, of the second inner ring ii, a pressing ring external thread is formed on the outer wall of the pressing ring, the pressing ring external thread is matched with the second inner wall thread ii of the sleeve cavity, a self-tensioning ring matching cavity is formed in the center of the pressing ring, the upper end of the self-tensioning ring is supported on one end face, away from the inner ring partition plate, of the second inner ring ii at a position corresponding to the elastic ring cavity of the elastic washer, and the lower end of the self-tensioning ring extends into the self-tensioning ring matching cavity and is in contact with the cavity wall of the self-tensioning ring matching cavity; and a self-tensioning ring restraining ring is arranged between the elastic washer and the pressing ring.
In a further specific embodiment of the present invention, the self-tightening ring matching cavity is shaped as a conical cavity, the self-tightening ring is a conical ring matching with the conical cavity, and a first fragile easy-breaking groove i and a second fragile easy-breaking groove ii are formed in the self-tightening ring around the self-tightening ring at intervals, the first fragile easy-breaking groove i is formed from bottom to top, the second fragile easy-breaking groove ii is formed from top to bottom, and the first fragile easy-breaking groove i and the second fragile easy-breaking groove ii form a staggered interdigital relationship with each other.
In yet a more specific embodiment of the present invention, the inner diameter of the lower portion of the self-tensioning ring is greater than the inner diameter of the upper portion.
In yet a further specific embodiment of the present invention, the elastic washer is a rubber, nylon or teflon washer.
One of the technical effects of the technical scheme provided by the invention is that the sleeve is of an integral structure, so that the sleeve does not need to be jointed and locked when the end parts of two steel bars are butted, and the structure is simplified and the operation during construction is facilitated; secondly, the steel bar end can be inserted into the depth reference limiting mechanism, the first steel bar end self-tensioning mechanism I and the second steel bar end self-tensioning mechanism II to be processed and installed on the sleeve respectively, so that the manufacturing and the assembly are facilitated; thirdly, as the constructor only needs to insert the end parts of the two steel bars from the first steel bar end self-tensioning mechanism I and the second steel bar end self-tensioning mechanism II respectively to inform the completion of the butt joint, the reinforcement butt joint efficiency of a construction site is improved, and the operation intensity of the constructor can be obviously reduced; fourthly, the self-tensioning mechanism I for the end part of the first steel bar and the self-tensioning mechanism II for the end part of the second steel bar can respectively generate an extremely tensioning type clamping effect on the end parts of the two steel bars which need to be butted and inserted into the sleeve cavity, so that the reliability of the butt joint of the end parts of the steel bars is favorably ensured.
Drawings
Fig. 1 is a structural view of a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1, after assembly.
Fig. 3 is a schematic diagram of the butt joint of the ends of the first steel bar i and the second steel bar ii by using the present invention.
Fig. 4 is a schematic view of a second embodiment of the present invention.
Detailed Description
In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.
In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of the drawings, and thus, should not be construed as particularly limiting the technical solution provided by the present invention.
Example 1:
referring to fig. 1 and 2, a sleeve 1 is shown, the sleeve 1 has a sleeve cavity 11, when machining, according to the required size of the process, a metal pipe such as a steel pipe with a corresponding specification is selected and cut to obtain the required length as the sleeve 1, the inner diameter of the sleeve cavity 11 is changed according to the diameter change of a first steel bar i 5 and a second steel bar ii 6 to be butted, as shown in fig. 3, and the outer diameter and the wall thickness of the sleeve 1 are the same; a reinforcing bar end insertion depth reference limiting mechanism 2 is shown, and the reinforcing bar end insertion depth reference limiting mechanism 2 is arranged in the middle of the height direction of a sleeve cavity 11 of a sleeve 1; a first steel bar end self-tensioning mechanism i 3 and a second steel bar end self-tensioning mechanism ii 4 are shown, the first steel bar end self-tensioning mechanism i 3 is arranged in the casing cavity 11 at a position corresponding to the upper end of the casing 1, and the second steel bar end self-tensioning mechanism ii 4 is also arranged in the casing cavity 11 at a position corresponding to the lower end of the casing 1.
Continuing to refer to fig. 1 and 2, the aforementioned reinforcing bar end insertion depth reference limiting mechanism 2 includes a first inner race i 21, a second inner race ii 22 and an inner race spacer 23, the inner race spacer 23 is disposed at a central position in the height direction of the sleeve cavity 11 of the aforementioned sleeve 1, the first inner race i 21 is disposed in the sleeve cavity 11 and an end surface of the first inner race i 21 facing the inner race spacer 23 is in contact with an upward side of the inner race spacer 23, the second inner race ii 22 is also disposed in the sleeve cavity 11 and an end surface of the second inner race ii 22 facing the inner race spacer 23 is in contact with a downward side of the inner race spacer 23.
The first inner ring I21, the second inner ring II 22 and the inner ring isolation plate 23 are separately machined and then are placed into the casing cavity 11, the first inner ring I21 and the second inner ring II 22 can be cut from a metal pipe purchased from a commercially available channel, such as a steel pipe, the outer walls of the first inner ring I21 and the second inner ring II 22 are in contact with the cavity wall of the casing cavity 11, and the inner ring isolation plate 23 is circular and has a diameter corresponding to the inner diameter of the casing cavity 11.
As shown in fig. 1 and 2, the first reinforcing bar end self-tightening mechanism i 3 disposed in the casing cavity 11 at a position corresponding to the upper end of the casing 1 is engaged with an end surface of the first inner race i 21 facing away from the inner race spacer 23, i.e., an end surface facing upward in the illustrated position state, and the second reinforcing bar end self-tightening mechanism ii 4 disposed in the casing cavity 11 at a position corresponding to the lower end of the casing 1 is engaged with an end surface of the second inner race ii 22 facing away from the inner race spacer 23, i.e., an end surface facing downward in the illustrated position state.
Continuing to refer to fig. 1 and fig. 2, a sleeve cavity first inner wall thread i 12 is formed on the upper end of the sleeve 1 and on the sleeve cavity wall of the sleeve cavity 11, a sleeve cavity second inner wall thread ii 13 is formed on the lower end of the sleeve 1 and on the sleeve cavity wall of the sleeve cavity 11, the first steel bar end self-tensioning mechanism i 3 matched with the end surface of the first inner ring i 21 away from the end surface of the inner ring isolation plate 23 is matched with the sleeve cavity first inner wall thread i 12, and the second steel bar end self-tensioning mechanism ii 4 matched with the end surface of the second inner ring ii 22 away from the end surface of the inner ring isolation plate 23 is matched with the sleeve cavity second inner wall thread ii 13.
The preferable but not limited structure of the first rebar end self-tensioning mechanism I3 is as follows: the self-tensioning sleeve comprises an elastic limiting gasket 31, a pressing sleeve 32 and a self-tensioning sleeve 33, wherein the elastic limiting gasket 31 is matched with one end face, away from the inner ring isolation plate 23, of the first inner ring I21, namely the elastic limiting gasket 31 is placed on or moved to the upper end face of the first inner ring I21, a pressing sleeve external thread 321 is formed on the outer wall of the pressing sleeve 32, the pressing sleeve external thread 321 is matched with the casing cavity first inner wall thread I12, a self-tensioning sleeve matching cavity 322 is formed in the center of the pressing sleeve 32, the lower end of the self-tensioning sleeve 33 is supported on the end face, opposite to the inner ring isolation plate 23, of the first inner ring I21 at the position corresponding to the elastic limiting ring cavity of the elastic limiting gasket 31, and the upper end of the self-tensioning sleeve 33 extends into the self-tensioning sleeve matching cavity 322 and is in contact with the cavity wall of the self-tensioning sleeve matching cavity 322.
In the present embodiment, the elastic limit washer 31 is a teflon washer, i.e., made of teflon material, but a washer made of rubber or nylon may be used as the elastic limit washer 31.
The self-tensioning sleeve matching cavity 322 is in a conical cavity, the self-tensioning sleeve 33 is a conical sleeve matched with the conical cavity, a first fragile fracture groove I331 and a second fragile fracture groove II 332 are formed in the self-tensioning sleeve 33 around the self-tensioning sleeve 33 at intervals, the first fragile fracture groove I331 is formed from top to bottom, the second fragile fracture groove II 332 is formed from bottom to top, and the first fragile fracture groove I331 and the second fragile fracture groove II 332 form a spaced interdigital relationship with each other.
In this embodiment, the inner diameter of the upper portion of the self-expansion sleeve 33 is larger than the inner diameter of the lower portion.
Due to the existence of the first weak breaking groove I331 and the second weak breaking groove II 332, the whole self-tensioning sleeve 33 can be crushed when the first reinforcing steel bar I5 shown in FIG. 3 is inserted. For example, when the inner diameter of the upper portion of the self-tensioning sleeve 33 is 16mm, the inner diameter of the lower portion of the self-tensioning sleeve 33 is 15mm, and the outer diameter of the first steel bar i 5 is 16mm, the self-tensioning sleeve 33 will be extruded into a plurality of fragments when the first steel bar i 5 is inserted, and the fragments will be tightly embraced at the end of the first steel bar i 5, so as to generate an extreme clamping effect on the end of the first steel bar i 5, the first steel bar i 5 cannot break loose or even slightly displace towards the sleeve cavity 11 of the sleeve 1, and the first steel bar i 5 cannot rotate under the premise of throwing away the sleeve 1, so that the first steel bar i 5 and the sleeve 1 form a reliable integrated structure.
With continued reference to fig. 1 and 2, the aforementioned second bar end self-tensioning mechanism ii 4 is preferably, but not absolutely limited to, the following: the self-tensioning ring comprises an elastic washer 41, a pressing ring 42 and a self-tensioning ring 44, wherein the elastic washer 41 is matched with one end face, away from the inner ring isolation plate 23, of the second inner ring II 22, namely the elastic washer 31 is placed on or placed on the lower end face of the second inner ring II 22, a pressing ring external thread 421 is formed on the outer wall of the pressing ring 42, the pressing ring external thread 421 is matched with the second inner wall thread II 13 of the sleeve cavity, a self-tensioning ring matching cavity 422 is formed in the center of the pressing ring 42, the upper end of the self-tensioning ring 43 is supported on one end face, opposite to the inner ring isolation plate 23, of the second inner ring II 22 at a position corresponding to the elastic ring cavity of the elastic washer 41, and the lower end of the self-tensioning ring 43 extends into the self-tensioning ring matching cavity 422 and is in contact with the cavity wall of the self-tensioning ring matching cavity 422.
The elastic washer 41 is a teflon washer, i.e., made of teflon-like material, but a washer made of rubber or nylon may be used as the elastic washer 41.
The self-tensioning ring matching cavity 422 is in a conical cavity, the self-tensioning ring 43 is a conical ring matched with the conical cavity, a first fragile easy-breaking groove I431 and a second fragile easy-breaking groove II 432 are formed in the self-tensioning ring 43 around the self-tensioning ring 43 at intervals, the first fragile easy-breaking groove I431 is formed from bottom to top, the second fragile easy-breaking groove II 432 is formed from top to bottom, and the first fragile easy-breaking groove I431 and the second fragile easy-breaking groove II 432 form a staggered interdigital relationship with each other.
In this embodiment, the inner diameter of the lower portion of the self-tightening ring 43 is larger than that of the upper portion.
Due to the existence of the first fragile breakable groove i 431 and the second fragile breakable groove ii 432, the whole self-tightening ring 43 can be crushed when the second steel bar ii 6 shown in fig. 3 is inserted, which is the same as the above description of the insertion of the first steel bar i 5 into the self-tightening sleeve 33 and will not be repeated.
During assembly, the first inner ring i 21, the second inner ring ii 22 and the inner ring separator 23 of the structural system of the steel bar end insertion depth reference limiting mechanism 2 are first installed in the middle of the height direction of the sleeve cavity 11, and since the distance from the upward side of the inner ring separator 23 to the upper end face of the sleeve 1 is equal to the distance from the downward side of the inner ring separator 23 to the lower end face of the sleeve 1, the degree of insertion of the first steel bar i 5 and the second steel bar ii 6 into the sleeve 1, which is illustrated in fig. 3, is equal. After the steel bar end part insertion depth reference limiting mechanism 2 is assembled, the part of the first steel bar end part self-tensioning mechanism I3 and the part of the second steel bar end part self-tensioning mechanism II 4 are assembled according to the schematic diagrams of fig. 1 and 2, and the assembled result can be shown in detail in fig. 2.
The inner diameter and the outer diameter of the casing 1, the inner diameter and the outer diameter of the first inner ferrule i 21 and the second inner ferrule ii 22, the respective sizes of the first steel bar end self-tensioning mechanism i 3 and the second steel bar end self-tensioning mechanism ii 4 and the above mentioned components are determined according to different specifications of the deformed steel bars, such as the nominal diameters of the deformed steel bars of 6mm, 8 mm, 10 mm, 12 mm, 16mm, 20 mm, 25 mm, 32 mm, 40 mm and 50mm, particularly the specifications of the steel bars (namely the deformed steel bars) with the diameter of more than 16mm, which are applicable to the invention. Therefore, the invention has various specifications according to different specifications of the reinforcing steel bars.
Referring to fig. 3 in conjunction with fig. 1 and 2, fig. 3 shows the first reinforcement i 5 and the second reinforcement ii 6 already mentioned above and also shows the outer shape of the sleeve 1. During construction, an operator inserts an end of the first steel bar i 5 (toward an end of the sleeve 1) into the self-tensioning sleeve 33 from the opening of the self-tensioning sleeve matching cavity 322 of the pressing sleeve 32, at this time, since the cavity of the self-tensioning sleeve 33 is a tapered cavity with an inner diameter larger up and smaller down, and since the diameter of the first steel bar i 5 is equal to the diameter of the upper part of the self-tensioning sleeve 33 and larger than the diameter of the lower part, when the first steel bar i 5 is inserted, the self-tensioning sleeve 33 is propped (i.e., crushed) at the first weak breaking groove i 331 and the second weak breaking groove ii 332 by an extrusion force, the self-tensioning sleeve 33 extrudes the elastic limiting gasket 31 when being crushed, so that the lower end of the self-tensioning sleeve 33 which is crushed into a flap shape slightly expands outwards, so that the first steel bar i 5 passes through the lower end of the self-tensioning sleeve 33 and is blocked by the inner ferrule spacer 23 until the lower end face of the first steel bar i 5, thereby accomplished the insertion of the tip of first reinforcing bar I5, the tip of the first reinforcing bar I5 of inserting can be by cracked from tight clamp of rising of tensioning cover 33, and the elasticity of elasticity spacing packing ring 31 is added and the reliable grafting effect of the tip of first reinforcing bar I5 can fully be ensured. Particularly can meet the requirement of the Chinese national standard GB1499.2-2007, for example, the tensile resistance of more than 540MPa is achieved. Since the second reinforcing bar II 6 is inserted in the same manner as the first reinforcing bar I5, the applicant does not need to describe the insertion method again.
Example 2:
referring to fig. 4, a metal self-tightening sleeve restraining ring 7a is only added between the elastic limiting washer 31 and the pressing sleeve 32 of the structural system of the first rebar end self-tightening mechanism i 3, and a metal self-tightening ring restraining ring 7b is also added between the elastic washer 41 and the pressing ring 42 of the structural system of the second rebar end self-tightening mechanism ii 4. Taking the former as an example, since the self-tensioning sleeve 33 in the broken state is reliably restrained by the self-tensioning sleeve restraining ring 7a, it can be said to be a control function, if an attempt is made to pull the first reinforcing steel bar i 5 in a direction away from the sleeve 1, under the restraint of the self-tensioning sleeve restraining ring 7a on the self-tensioning sleeve 33 in the conical shape, the more the pulling is, the more the connection effect of the end of the first reinforcing steel bar i 5 is further ensured. Since the restraining function of the latter, i.e., the self-tensioning ring restraining ring 7b, on the self-tensioning ring 43 which is also conical in shape is the same as that of the former, the applicant does not need to describe any further, and the rest of the description of embodiment 1 is the same.
In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.
Claims (10)
1. A self-tensioning steel bar connector is characterized by comprising a sleeve (1), wherein the sleeve (1) is provided with a sleeve cavity (11); the reinforcing steel bar end insertion depth reference limiting mechanism (2), and the reinforcing steel bar end insertion depth reference limiting mechanism (2) is arranged in the middle of the height direction of a sleeve cavity (11) of the sleeve (1); a first steel bar end part is from tensioning mechanism I (3) and a second steel bar end part is from tensioning mechanism II (4), first steel bar end part is in corresponding to from tensioning mechanism I (3) the position setting of the upper end of sleeve pipe (1) is in casing pipe chamber (11), second steel bar end part is in corresponding to the position setting of the lower extreme of sleeve pipe (1) is in same in casing pipe chamber (11) from tensioning mechanism II (4).
2. The self-tensioning reinforcement connector according to claim 1, wherein the reinforcement end insertion depth reference limiting mechanism (2) comprises a first inner ring I (21), a second inner ring II (22) and an inner ring isolation plate (23), the inner ring isolation plate (23) is arranged in a middle position in the height direction of the sleeve cavity (11) of the sleeve (1), the first inner ring I (21) is arranged in the sleeve cavity (11) and one end face of the first inner ring I (21) facing the inner ring isolation plate (23) is in contact with one upward side of the inner ring isolation plate (23), the second inner ring II (22) is also arranged in the sleeve cavity (11) and one end face of the second inner ring II (22) facing the inner ring isolation plate (23) is in contact with one downward side of the inner ring isolation plate (23); the first steel bar end self-tensioning mechanism I (3) arranged in the sleeve cavity (11) at a position corresponding to the upper end of the sleeve (1) is matched with one end face, deviating from the inner ring isolation plate (23), of the first inner ring I (21), while the second steel bar end self-tensioning mechanism II (4) arranged in the sleeve cavity (11) at a position corresponding to the lower end of the sleeve (1) is matched with one end face, deviating from the inner ring isolation plate (23), of the second inner ring II (22).
3. The self-tensioning steel bar connector as claimed in claim 2, wherein a sleeve cavity first inner wall thread I (12) is formed at the upper end of the sleeve (1) and on the sleeve cavity wall of the sleeve cavity (11), a second inner wall thread II (13) of the sleeve cavity is formed on the lower end of the sleeve (1) and the wall of the sleeve cavity which is also positioned in the sleeve cavity (11), the end face, away from the inner ring isolation plate (23), of one end of the first inner ring I (21) is matched with the first steel bar end self-tensioning mechanism I (3) which is matched with the first inner wall thread I (12) of the casing cavity, and the second steel bar end self-tensioning mechanism II (4) matched with one end face, deviating from the inner ring isolation plate (23), of the second inner ring II (22) is matched with the second inner wall thread II (13) of the pipe cavity.
4. The self-tensioning steel bar connector as claimed in claim 3, wherein the first steel bar end self-tensioning mechanism I (3) comprises an elastic limit washer (31), a pressing sleeve (32) and a self-tensioning sleeve (33), the elastic limit washer (31) is matched with one end face, away from the inner ring isolation plate (23), of the first inner ring I (21), a pressing sleeve external thread (321) is formed on the outer wall of the pressing sleeve (32), the pressing sleeve external thread (321) is matched with the first inner wall thread I (12) of the sleeve cavity, a self-tensioning sleeve matching cavity (322) is formed in the center of the pressing sleeve (32), the lower end of the self-tensioning sleeve (33) is supported on one end face, away from the inner ring isolation plate (23), of the first inner ring I (21) at a position corresponding to the elastic limit washer cavity of the elastic limit washer (31), the upper end of the self-tensioning sleeve (33) extends into the self-tensioning sleeve matching cavity (322) and is in contact with the cavity wall of the self-tensioning sleeve matching cavity (322); a self-tensioning sleeve restraining ring (7a) is arranged between the elastic limiting gasket (31) and the pressing sleeve (32); the elastic limit washer (31) is a rubber, nylon or polytetrafluoroethylene washer.
5. The self-tensioning steel bar connector according to claim 4, wherein the self-tensioning sleeve matching cavity (322) is in a conical cavity, the self-tensioning sleeve (33) is a conical sleeve matched with the conical cavity, a first fragile breaking groove I (331) and a second fragile breaking groove II (332) are formed in the self-tensioning sleeve (33) in a spaced state around the self-tensioning sleeve (33), the first fragile breaking groove I (331) is formed from top to bottom, the second fragile breaking groove II (332) is formed from bottom to top, and the first fragile breaking groove I (331) and the second fragile breaking groove II (332) form a spaced interdigital relationship with each other.
6. The self-tensioning reinforcing steel bar connector according to claim 4 or 5, wherein the inner diameter of the upper part of the self-tensioning sleeve (33) is larger than that of the lower part.
7. The self-tensioning steel bar connector as claimed in claim 3, wherein the second steel bar end self-tensioning mechanism II (4) comprises an elastic washer (41), a pressing ring (42) and a self-tensioning ring (44), the elastic washer (41) is matched with one end face, away from the inner ring isolation plate (23), of the second inner ring II (22), a pressing ring external thread (421) is formed on the outer wall of the pressing ring (42), the pressing ring external thread (421) is matched with the second inner wall thread II (13) of the sleeve cavity, a self-tensioning ring matching cavity (422) is formed in the center of the pressing ring (42), the upper end of the self-tensioning ring (43) is supported on one end face, away from the inner ring isolation plate (23), of the second inner ring II (22) at a position corresponding to the elastic ring cavity of the elastic washer (41), and the lower end of the self-tensioning ring (43) is inserted into the self-tensioning ring matching cavity (422) and matched with the self-tensioning ring matching cavity (422) Is contacted with the cavity wall; a self-tensioning ring restraint ring (7b) is arranged between the elastic washer (41) and the pressing ring (42).
8. The self-tensioning reinforcing steel bar connector according to claim 7, wherein the self-tensioning ring matching cavity (422) is in a conical cavity shape, the self-tensioning ring (43) is a conical ring matched with the conical cavity, a first fragile easy-breaking groove I (431) and a second fragile easy-breaking groove II (432) are formed in the self-tensioning ring (43) around the self-tensioning ring (43) in a spaced state, the first fragile easy-breaking groove I (431) is formed from bottom to top, the second fragile easy-breaking groove II (432) is formed from top to bottom, and the first fragile easy-breaking groove I (431) and the second fragile easy-breaking groove II (432) form a spaced interdigital relationship with each other.
9. The self-tensioning reinforcing steel bar connector according to claim 7 or 8, wherein the inner diameter of the lower part of the self-tensioning ring (43) is larger than that of the upper part.
10. The self-tensioning reinforcing steel bar connector according to claim 7, wherein the elastic washer (41) is a rubber, nylon or polytetrafluoroethylene washer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299507.7A CN111364689A (en) | 2020-04-16 | 2020-04-16 | Self-tensioning steel bar connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299507.7A CN111364689A (en) | 2020-04-16 | 2020-04-16 | Self-tensioning steel bar connector |
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| CN111364689A true CN111364689A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010299507.7A Pending CN111364689A (en) | 2020-04-16 | 2020-04-16 | Self-tensioning steel bar connector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530092A (en) * | 2021-07-08 | 2021-10-22 | 中建二局第一建筑工程有限公司 | Quick connecting device of reinforcing bar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006052064A1 (en) * | 2004-11-09 | 2006-05-18 | Jeong Soo Lee | Joint coupler for steel/reinforcing bar |
| CN102261168A (en) * | 2011-05-12 | 2011-11-30 | 董建伟 | Slidable prestressed rib connector |
| CN103590597A (en) * | 2013-11-18 | 2014-02-19 | 中煤建筑安装工程集团有限公司 | Jointer for rapid butting and clamping connection of reinforcing steel bars or steel tubes |
| CN107268612A (en) * | 2017-07-20 | 2017-10-20 | 河北工业大学 | A kind of quick-connecting joint for concrete square pile |
| CN208870292U (en) * | 2018-09-06 | 2019-05-17 | 内蒙古机电职业技术学院 | A kind of steel bar connector |
| CN109989532A (en) * | 2018-05-10 | 2019-07-09 | 浙江宁巍机械科技有限公司 | A kind of push-in connector |
-
2020
- 2020-04-16 CN CN202010299507.7A patent/CN111364689A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006052064A1 (en) * | 2004-11-09 | 2006-05-18 | Jeong Soo Lee | Joint coupler for steel/reinforcing bar |
| CN102261168A (en) * | 2011-05-12 | 2011-11-30 | 董建伟 | Slidable prestressed rib connector |
| CN103590597A (en) * | 2013-11-18 | 2014-02-19 | 中煤建筑安装工程集团有限公司 | Jointer for rapid butting and clamping connection of reinforcing steel bars or steel tubes |
| CN107268612A (en) * | 2017-07-20 | 2017-10-20 | 河北工业大学 | A kind of quick-connecting joint for concrete square pile |
| CN109989532A (en) * | 2018-05-10 | 2019-07-09 | 浙江宁巍机械科技有限公司 | A kind of push-in connector |
| CN208870292U (en) * | 2018-09-06 | 2019-05-17 | 内蒙古机电职业技术学院 | A kind of steel bar connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530092A (en) * | 2021-07-08 | 2021-10-22 | 中建二局第一建筑工程有限公司 | Quick connecting device of reinforcing bar |
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