CN217840582U

CN217840582U - Mechanical connection structure of reinforcing steel bars and prefabricated part

Info

Publication number: CN217840582U
Application number: CN202221678579.3U
Authority: CN
Inventors: 张雁; 于子晏; 赵伟华; 苏以玉
Original assignee: Jianhua Construction Materials China Co Ltd
Current assignee: Jianhua Construction Materials China Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-18
Anticipated expiration: 2032-07-01

Abstract

The utility model provides a steel bar mechanical connection structure and a prefabricated member, which comprises a first sleeve, a second sleeve, a bolt rod and an elastic locking element, wherein one end of the first sleeve and one end of the second sleeve are respectively provided with a bar penetrating hole for connecting a main bar, and one end of the bolt rod is arranged in the second sleeve; the plug part of the plug rod is inserted into the first sleeve, so that each elastic stopping element is clamped in the corresponding stopping groove, the lengths of the plug rods in the same prefabricated part can be different in the construction site, and the connecting structures can be effectively connected when the connecting lengths are different. The utility model discloses a mode of mechanical connection can reliably connect the steel muscle in the adjacent prefab, realizes the effect that the equivalent passed power.

Description

Mechanical connection structure of reinforcing steel bars and prefabricated part

Technical Field

The utility model relates to a precast concrete component assembly field or precast concrete component construction field, in particular to reinforcing bar mechanical connection structure and prefab.

Background

Under the large background of the vigorous development of assembly buildings in China, the application of precast concrete members in the assembly buildings is also increasing. However, the method is limited by factors such as complex construction site environment, insufficient member manufacturing precision, skill proficiency of site constructors and the like, and the product quality and the installation and construction progress of the prefabricated members are difficult to control, so that the overall cost of the prefabricated building is increased.

The connection mode of the existing prefabricated part mainly has the following problems: 1. in the traditional wet connection, the post-cast concrete area is large, the cast-in-place quantity is large, the number of anchoring steel bars in a node area is large and complex, the concrete casting is difficult, and the overall structure quality and safety of the fabricated building are seriously influenced; 2. the sleeve is connected in a grouting manner, so that the problems of insufficient grouting, difficult steel bar alignment, incapability of grouting after grouting hole plugging, high cost and the like exist; 3. the dry connection of bolts and the like has the defects of weak connection strength and higher requirements on the manufacturing precision of components, the installation precision of construction sites and the technical level of constructors.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a reinforcing bar mechanical connection structure and prefab through mechanical connection's mode, can reliably connect the reinforcing bar in the adjacent prefab, realizes the effect that the equivalent passes power.

The utility model discloses a realize above-mentioned technical purpose through following technological means.

A mechanical connection structure of steel bars comprises a first sleeve, a second sleeve, a bolt rod and an elastic stop element, wherein one end of the first sleeve and one end of the second sleeve are respectively provided with a bar penetrating hole for connecting a main bar, and one end of the bolt rod is arranged in the second sleeve; the plug part of the plug rod is inserted into the first sleeve, so that each elastic stopping element is clamped in the corresponding stopping groove, the lengths of the plug rods in the same prefabricated part in the construction site are different, and the connecting structures can be effectively connected when the connecting lengths are different.

Further, the clearance between adjacent elastic stopping elements in the first sleeve gradually increases along the inserting direction of the bolt rod, and the clearance between adjacent stopping grooves formed in the bolt rod gradually increases along the inserting direction of the bolt rod.

Furthermore, the elastic stop element comprises an opening elastic sheet, and an annular boss is arranged on the end face of the opening elastic sheet and used for spacing the adjacent opening elastic sheets.

Further, the thickness of the annular boss is gradually increased along the inserting direction of the bolt rod, and the gap between adjacent stopping grooves formed in the bolt rod is gradually increased along the inserting direction of the bolt rod.

Furthermore, the elastic stop element comprises an opening elastic sheet and an annular gasket, and the opening elastic sheet and the annular gasket are sequentially and alternately arranged in the first sleeve.

Further, the thickness of the annular gasket is gradually increased along the inserting direction of the bolt rod, and the gap between adjacent stopping grooves formed in the bolt rod is gradually increased along the inserting direction of the bolt rod.

The outer ring of the fixed sleeve is connected with the inner hole of the first sleeve, and the end face of the fixed sleeve is in contact with the elastic stopping element and used for limiting the axial movement of the elastic stopping element.

Furthermore, a supporting table is arranged on the end face, in contact with the elastic stopping element, of the fixing sleeve and used for supporting the elastic stopping element, the elastic stopping element at the bottommost layer can be prevented from deforming, and the whole set of assembly connection reliability can be improved.

Further, the cross section of the stop groove is rectangular, trapezoidal or triangular.

Furthermore, the plug part of the plug rod is provided with a guide slope for facilitating the plug part to be inserted into the first sleeve.

The prefabricated member with the steel bar mechanical connection structure comprises a plurality of main bars, wherein the main bars are positioned in bar penetrating holes of the sleeve.

Furthermore, a plurality of steel bar mechanical connection structures are arranged between the two prefabricated members.

The beneficial effects of the utility model reside in that:

1. steel bar mechanical connection structure, through a plurality of elasticity locking component of sleeve hole axial interval distribution, the plug portion of bolt pole is equipped with a plurality of locking grooves along the axial, the plug portion of bolt pole inserts another in the sleeve, make every elasticity locking component joint in the locking groove that corresponds, can realize like this that bolt length is non-uniform in the same prefabricated component in the job site, connection length is different, each connection structure can both effectively be connected.

2. Steel bar mechanical connection structure, can simplify construction process, constructor need will dock the reinforcement cutting that length is nonuniform in the eminence among the prior art, and uses steel bar mechanical connection structure, can be applicable to this reinforcement that dock length is nonuniform, reduce the construction degree of difficulty, swift high-efficient.

3. Steel bar mechanical connection structure, through mechanical connection's mode, can reliably connect the steel bar in the adjacent prefab, realize the effect of equivalent biography power.

4. Steel bar mechanical connection structure, the mode furthest that adopts the dry-type to connect reduces the wet operation degree of job site, avoids causing because of environment and artificial construction quality problems that cause.

5. Steel bar mechanical connection structure, with the contact of elasticity locking component be equipped with a supporting bench on the fixed cover cylinder terminal surface, can prevent that bottom elasticity locking component from warping, help improving a whole set of subassembly and connect the reliability.

6. Steel bar machinery connection structure, in the in-service use process, the atress of opening shell fragment reduces along bolt pole insertion direction gradually, and the stress of lower one deck gasket is most concentrated, according to this condition the utility model discloses a steel bar machinery connection structure, along bolt pole insertion direction annular gasket's thickness increases gradually, follows the distribution of bolt pole insertion direction opening shell fragment like this by secret to dredging, can correspond the atress of the opening shell fragment in the in-service use process like this, prevents the deformation of opening shell fragment, causes the potential safety hazard.

Drawings

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

Fig. 1 is the assembly view of the mechanical connection structure of steel bars in embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view of an opening elastic sheet according to embodiment 2 of the present invention.

Fig. 3 is the assembly view of the mechanical connection structure of steel bars in the embodiment of the present invention 3.

Fig. 4 is a cross-sectional view of the opening elastic piece according to embodiment 3 of the present invention.

Fig. 5 is a cross-sectional view of the fixing sleeve of the present invention.

Fig. 6 is a cross-sectional view of the latch rod structure of the present invention.

Fig. 7 is a cross-sectional view of the bolt rod structure of the present invention.

Fig. 8 is a three-sectional view of the latch rod structure of the present invention.

In the figure:

1-a first sleeve; 2-a second sleeve; 3-a bolt rod; 4-fixing the sleeve; 5-opening the elastic sheet; 6-an annular gasket; 7-upper reinforcing steel bars; 8-lower reinforcing steel bars; 9-a stop groove; 10-an annular boss; 11-a support table.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the scope of the invention is not limited thereto.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The mechanical connection structure of the steel bars in embodiment 1 comprises a first sleeve 1, a second sleeve 2, a bolt rod 3 and an elastic stop element, wherein one end of the first sleeve 1 and one end of the second sleeve 2 are respectively provided with a bar penetrating hole for connecting a main bar, the main bar of an upper steel bar 7 is clamped or screwed in the first sleeve 1, and the main bar of a lower steel bar 8 is clamped or screwed in the second sleeve 2; the external thread of the connecting part of the bolt rod 3 is matched with the internal thread of the second sleeve 2; 1 hole axial interval distribution of first sleeve a plurality of elasticity locking component, the lower part of bolt pole 3 is equipped with a plurality of locking grooves 9 along the axial, 2 holes of second sleeve are inserted to the plug portion of bolt pole 3, make every elasticity locking component joint in the locking groove 9 that corresponds, realize the butt joint of upper portion reinforcing bar 7 and lower part reinforcing bar 8, the utility model discloses utilize elasticity locking component to have certain elasticity, can realize that length is not unified in the same prefabricated component of length in the job site, and connection length is different, and each connection structure can both effectively be connected. Constructor need will dock the non-uniform reinforcing bar cutting of length in the eminence among the prior art, and uses reinforcing bar mechanical connection structure, because elasticity locking element has certain elasticity, can be applicable to this non-uniform reinforcing bar of butt joint length or less angular deviation reinforcing bar, reduce the construction degree of difficulty, swift high-efficient.

In order to facilitate the positioning of the elastic stopping element, the elastic stopping element further comprises a fixed sleeve 4, the outer ring of the fixed sleeve 4 is in threaded connection with the inner hole of the first sleeve 1, and the end face of the fixed sleeve 4 is in contact with the last elastic stopping element in the first sleeve 1 and used for limiting the axial movement of the elastic stopping element.

In the actual use process, the stress of the elastic locking element is gradually reduced along the insertion direction of the plug pin rod 3, and the stress of the elastic locking element contacting with the end face of the fixed sleeve 4 is most concentrated, so that in embodiment 1, the gap between adjacent elastic locking elements in the first sleeve 1 is gradually increased along the insertion direction of the plug pin rod 3, and the gap between adjacent locking grooves 9 arranged on the plug pin rod 3 is gradually increased along the insertion direction of the plug pin rod 3, so that the distribution of the opening elastic pieces along the insertion direction of the plug pin rod is dense to sparse, and the stress of the opening elastic pieces in the actual use process can be corresponding to the stress of the opening elastic pieces, thereby preventing the potential safety hazard caused by the deformation of the opening elastic pieces. In addition, a support base 11 is provided on the end surface of the fixing sleeve 4 contacting with the elastic stopping element, and the support base 11 is used for supporting the elastic stopping element, so that the elastic stopping element at the bottommost layer can be prevented from being deformed, and the reliability of the connection of the whole assembly can be improved, as shown in fig. 5.

In embodiment 2, based on embodiment 1, the elastic locking element includes an opening elastic sheet 5, and an annular boss 10 is provided on an end surface of the opening elastic sheet 5 to separate adjacent opening elastic sheets 5, as shown in fig. 2. The terminal surface of annular boss 10 can be equipped with the concave tang, 5 bottoms of opening shell fragment can be equipped with the convex tang, and when the installation of the opening shell fragment 5 of interval alternate distribution like this, the concave tang of annular boss 10 cooperates with the convex tang of 5 bottoms of adjacent opening shell fragment on an opening shell fragment 5, easy to assemble. The shape of the support platform 11 can match the shape of the opening spring 5.

The thickness of the annular boss 10 is gradually increased along the inserting direction of the bolt rod 3, and the gap between the adjacent stop grooves 9 arranged on the bolt rod 3 is gradually increased along the inserting direction of the bolt rod 3, so that the distribution of the opening elastic pieces 5 along the inserting direction of the bolt rod 3 is dense to sparse, the distribution of the stop grooves 9 on the bolt rod 3 is correspondingly dense to sparse, and the distribution of the opening elastic pieces 5 is matched with the distribution of the stop grooves 9.

Embodiment 3 as shown in fig. 3, based on embodiment 1, the elastic stopping element includes an opening spring 5 and an annular gasket 6, and the opening spring 5 and the annular gasket 6 are sequentially and alternately installed in the other sleeve. The thickness of the annular gasket 6 is gradually increased along the inserting direction of the bolt rod 3, and the gap between adjacent stop grooves 9 arranged on the bolt rod 3 is gradually increased along the inserting direction of the bolt rod 3, so that the distribution of the opening elastic sheets 5 is matched with that of the stop grooves 9.

In embodiment 3, the two end surfaces of the opening elastic sheet 5 are respectively provided with a concave spigot and a convex spigot, and the two end surfaces of the annular gasket 6 are provided with a convex spigot and a concave spigot, so that when the opening elastic sheet 5 and the annular gasket 6 are alternately installed at intervals, the concave spigot on the opening elastic sheet 5 is matched with the convex spigot of the adjacent annular gasket 6, and the concave spigot on the annular gasket 6 is matched with the convex spigot of the adjacent opening elastic sheet 5, so that the installation is convenient.

The upper part of the bolt rod 3 is provided with an external thread; the plug part of the plug rod 3 is provided with a plurality of stopping grooves 9 along the axial direction, and the cross section of the stopping groove 9 of the first plug rod structure is rectangular, as shown in fig. 6; the cross section of the stopping groove 9 of the second bolt rod structure is trapezoidal, and is shown in fig. 7; the cross section of the stopping groove 9 of the second bolt rod structure is triangular, and as shown in fig. 8. The inserting end of the lower part of the bolt rod 3 is provided with a guide slope for facilitating the bolt rod 3 to be inserted into the opening elastic sheet 5.

The prefabricated member with the steel bar mechanical connection structure comprises a plurality of main bars, and the main bars are positioned in the bar penetrating holes of the sleeve. And a plurality of steel bar mechanical connection structures are arranged between the two prefabricated members.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A mechanical connection structure of steel bars is characterized by comprising a first sleeve (1), a second sleeve (2), a bolt rod (3) and an elastic stop element, wherein one end of the first sleeve (1) and one end of the second sleeve (2) are respectively provided with a bar penetrating hole connected with a main bar, and one end of the bolt rod (3) is arranged in the second sleeve (2); a plurality of elastic stopping elements are axially distributed in an inner hole of the first sleeve (1) at intervals, a plug part of the plug rod (3) is provided with a plurality of stopping grooves (9) along the axial direction, and the plug part of the plug rod (3) is inserted into the first sleeve (1) so that each elastic stopping element is clamped in the corresponding stopping groove (9).

2. Mechanical connection for reinforcing bars according to claim 1, characterized in that the clearance between adjacent elastic stop elements inside the first sleeve (1) increases gradually along the insertion direction of the plug rod (3) and the clearance between adjacent stop grooves (9) provided on the plug rod (3) increases gradually along the insertion direction of the plug rod (3).

3. The mechanical connection structure of the steel bars as claimed in claim 1, wherein the elastic stop element comprises an opening spring (5), and the end surface of the opening spring (5) is provided with an annular boss (10) for spacing the adjacent opening springs (5).

4. Mechanical connection for reinforcing bars according to claim 3, characterized in that the thickness of the annular boss (10) increases gradually along the insertion direction of the plug rod (3) and the clearance between adjacent arresting grooves (9) provided on the plug rod (3) increases gradually along the insertion direction of the plug rod (3).

5. The mechanical connection structure of steel bars as claimed in claim 1, characterized in that said elastic stop element comprises an open spring (5) and an annular gasket (6), said open spring (5) and annular gasket (6) being installed in turn alternately in said first sleeve (1).

6. Mechanical connection for reinforcement bars according to claim 5, characterized in that the thickness of the annular gasket (6) increases gradually in the direction of insertion of the plug rod (3) and the clearance between adjacent retaining grooves (9) provided on the plug rod (3) increases gradually in the direction of insertion of the plug rod (3).

7. The mechanical connection structure of steel bars according to claim 1, characterized in that it further comprises a fixed sleeve (4), the outer ring of the fixed sleeve (4) is connected with the inner hole of the first sleeve (1), and the end face of the fixed sleeve (4) is contacted with an elastic stop element for limiting the axial movement of the elastic stop element.

8. A mechanical connection according to claim 7, characterized in that said fixing sleeve (4) is provided with a support (11) on the end face thereof which is in contact with said elastic stop member, said support (11) being adapted to support said elastic stop member.

9. -mechanical connection of reinforcing bars according to claim 1, characterized in that the cross section of the retaining groove (9) is rectangular or trapezoidal or triangular.

10. Mechanical connection to reinforcing bars, according to claim 1, characterized in that the plug part of the latch lever (3) is provided with a guide slope.

11. A prefabricated member having a mechanical connection structure of reinforcing bars as claimed in any one of claims 1 to 10, the prefabricated member comprising a plurality of main bars, wherein the main bars are located in the bar penetrating holes of the sleeve.

12. The prefabricated member of claim 11 wherein a plurality of said rebar mechanical connections are provided between two of said prefabricated members.