CN218933609U

CN218933609U - Mechanical joint for building and concrete prefabricated member set

Info

Publication number: CN218933609U
Application number: CN202221092567.2U
Authority: CN
Inventors: 林缄光
Original assignee: Fujian Provincial Institute Of Architectural Design And Research Co ltd
Current assignee: Fujian Provincial Institute Of Architectural Design And Research Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2023-04-28
Anticipated expiration: 2032-05-09

Abstract

The utility model discloses a mechanical joint for construction and a concrete prefabricated member group, wherein the mechanical joint for construction comprises: the socket joint chuck that all is provided with bulb elasticity joint portion at axial both ends, the bulb end inserts the first outer muscle of locating one of them bulb elasticity joint portion, and the head end inserts the second outer muscle of locating another one of them bulb elasticity joint portion to and be used for preventing two outer retaining members of radial expansion of two bulb elasticity joint portions respectively. According to the utility model, the end parts of the first extending rib and the second extending rib are arranged as the spherical ends, so that the socket clamp can realize certain radial adjustment relative to the first extending rib and the second extending rib, the butt joint of the first extending rib and the second extending rib which are positioned on different shafts is realized, the flexibility of the butt joint of the mechanical joint for construction is improved, and the universal performance of the mechanical joint for construction is improved.

Description

Mechanical joint for building and concrete prefabricated member set

Technical Field

The utility model relates to the technical field of buildings, in particular to a mechanical joint for a building and a concrete prefabricated member set.

Background

The concrete prefabricated member is a building concrete member which is manufactured in a factory, transported to a building construction site and assembled and installed on the site in a reliable connection mode.

The prior art discloses a mechanical joint is used for connecting two concrete prefabricated members, and this mechanical joint is screw sleeve, and its both ends inner wall is provided with positive and negative screw thread, when screwing the sleeve, sleeve both ends respectively with the atress muscle spiro union of two concrete prefabricated members to realize the butt joint of two concrete prefabricated members. However, by adopting the technical scheme, the complete coaxiality of the stress bars of the two concrete prefabricated parts which need to be butted must be ensured, and the stress bars can be bent or curved during the actual production, transportation or construction of the concrete prefabricated parts, so that the stress bars of the two adjacent concrete prefabricated parts are difficult to ensure the complete coaxiality, and the effective butting of the two adjacent concrete prefabricated parts cannot be completed.

Disclosure of Invention

The utility model aims to provide a mechanical joint for a building and a concrete prefabricated member group, which are used for solving the problem that the existing mechanical joint for the building cannot realize effective butt joint of two stress ribs with different axes.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a mechanical joint for construction, comprising: the socket joint chuck that all is provided with bulb elasticity joint portion at axial both ends, the bulb end inserts the first outer muscle of locating one of them bulb elasticity joint portion, and the head end inserts the second outer muscle of locating another one of them bulb elasticity joint portion to and be used for preventing two outer retaining members of radial expansion of two bulb elasticity joint portions respectively.

Preferably, at least one of the ball head elastic clamping parts is provided with at least two elastic clamping pieces which are circumferentially arranged around the central axis of the socket clamp at intervals, each elastic clamping piece is gradually close to the central axis of the socket clamp in the direction from inside to outside, and at least one end inner wall far away from the socket clamp of each elastic clamping piece is provided with an arc clamping stop surface which is matched with the ball head end.

Preferably, the outer locking member is in threaded connection with the outer wall of the socket chuck; or the outer locking piece is in buckling connection with the outer wall of the socket chuck; or the outer locking piece is welded with the outer wall of the socket chuck.

Preferably, the two outer locking pieces are fixedly connected; one end of one external locking piece is an external thread section, and the other external locking piece is a threaded hole matched with the external thread section; or, the two outer locking pieces are welded and fixed.

Preferably, at least one of the outer locking members has a locking cavity adapted to the outer contour of the ball head elastic clamping portion.

Preferably, the first extension rib is provided with a first screw rod positioned at the tail part of the ball end, and a first tightening nut for tightly propping the outer locking piece against the socket chuck is screwed on the first screw rod; and/or the second external extension rib is provided with a second screw rod positioned at the tail part of the ball end, and a second tightening nut which is used for propping the external locking piece against the socket chuck is screwed on the second screw rod.

Preferably, the mechanical joint for construction further comprises a pressure bearing member for abutting the outer locking member against the socket clamp; wherein the bearing member is pinned to the first outer rib; and/or the bearing member is pinned to the second external rib; or the pressure-bearing member is welded to the first external rib; and/or the pressure-bearing piece is welded to the second external rib.

Preferably, the mechanical joint for construction further comprises a pressure bearing member for abutting the outer locking member against the socket clamp; wherein the pressure bearing piece is hooped with the first extension rib; and/or the pressure-bearing member is hooped with the second external rib.

Another object of the present utility model is to provide a concrete prefabricated member set, including at least two adjacent concrete prefabricated members disposed in opposite directions, wherein an exposed first extension rib is disposed at an end of one of the concrete prefabricated members, wherein an exposed second extension rib is disposed at an end of the other concrete prefabricated member, and the first extension rib and the second extension rib are connected through a mechanical joint for construction, wherein the mechanical joint for construction is one of the mechanical joints for construction.

Preferably, the first extension rib is integrally formed at the stressed rib end part of a concrete prefabricated member to be butted; and/or the second external extension rib is integrally formed at the end part of the stress rib of the other concrete prefabricated member to be butted; or the first extension rib is connected with the stress rib of the concrete prefabricated member to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection; and/or the second extension rib is connected with the stress rib of the other concrete prefabricated member to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection.

Compared with the prior art, the utility model has the beneficial effects that: in the actual use process of the mechanical joint for the building, the ball head end of the first extension rib is inserted into the rear of one ball head elastic clamping part, and an outer locking piece locks the ball head elastic clamping part to prevent the ball head elastic clamping part from being radially opened, so that the ball head end of the first extension rib is always clamped by the ball head elastic clamping part in a tensioned state, and the effective butt joint of the first extension rib and the ball head elastic clamping part is realized; the ball end of the second extension rib is inserted into the other ball elastic clamping part and then the other outer locking piece locks the ball elastic clamping part so as to prevent the ball elastic clamping part from being radially opened, the ball end of the second extension rib is always clamped by the ball elastic clamping part in a tensioned state, the effective butt joint of the second extension rib and the ball elastic clamping part is realized, and the tensile anti-drop performance of the mechanical joint for construction is improved; and through setting the tip of first outer muscle and second outer muscle as the ball head end for socket joint chuck can realize certain radial adjustment for first outer muscle and the outer muscle of second, with this realization is located the butt joint of the outer muscle of first outer muscle of different axle and second, improves the flexibility that mechanical joint was docked for the building, improves the universal performance of mechanical joint for the building.

The concrete prefabricated member group provided by the utility model comprises the mechanical joint for construction, so that the concrete prefabricated member group has the same function as the mechanical joint for construction; in addition, the concrete prefabricated member group provided by the utility model has the advantages of high assembly efficiency and good integral stress structure.

Drawings

FIG. 1 is a schematic view of an exploded construction of a mechanical joint for construction according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an outer retaining member according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a ball resilient clip portion according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an explosion structure of two outer locking members according to an embodiment of the present utility model connected by threads;

FIG. 5 is a cross-sectional view of a construction machine joint according to an embodiment of the present utility model in use;

FIG. 6 is a cross-sectional view of another construction machine joint according to an embodiment of the present utility model in use;

FIG. 7 is a schematic view of a concrete precast element set according to an embodiment of the present utility model;

fig. 8 is an enlarged schematic view of the portion a in fig. 7.

In the figure: 1. a first extension bar; 11. a first screw; 12. a first ball end; 2. a second external rib; 21. a second screw; 22. a second ball end; 3. a socket chuck; 31. an elastic card; 32. an arc-shaped clamping stop surface; 4. an outer locking member; 41. an external thread section; 42. a locking cavity; 5. a first tightening nut; 6. a second tightening nut; 7. a pressure-bearing member; 8. and (5) a concrete prefabricated member.

Detailed Description

In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.

In the present specification, the terms "upper, lower, inner, outer" and the like are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may be changed according to the drawings, so that the terms are not to be construed as absolute limitation of the protection scope; moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a mechanical joint for construction, comprising a socket chuck 3, a first extension bar 1, a second extension bar 2, and two outer locking members 4 for preventing the two ball elastic clamping parts from being radially opened, wherein the two axial ends of the socket chuck are respectively provided with a ball elastic clamping part; the ball head end of the first extension bar 1 is inserted into one of the ball head elastic clamping parts; the ball end of the second external extension rib 2 is inserted into the other ball elastic clamping part. The first extension bar 1 and the second extension bar 2 can be steel bars, steel bars or other strip-shaped objects meeting the requirements of rigidity and strength, and the first extension bar 1 and the second extension bar 2 can be directly used as stress bars of a concrete prefabricated member 8 or can be auxiliary connecting pieces for realizing connection of a mechanical joint for construction and the concrete prefabricated member 8; specifically, the selection is not limited in this case, depending on the actual situation.

Specifically, in the actual use process of the mechanical joint for the building, the ball end of the first extension bar 1 is inserted into the rear of one ball elastic clamping part, and the outer locking piece 4 locks the ball elastic clamping part to prevent the ball elastic clamping part from being radially opened, so that the ball end of the first extension bar 1 is always clamped by the ball elastic clamping part in a tensile state, and the effective butt joint of the first extension bar 1 and the ball elastic clamping part is realized; the ball end of the second external extension rib 2 is inserted into the other ball elastic clamping part and then the other external locking piece 4 locks the ball elastic clamping part to prevent the ball elastic clamping part from being opened radially, the head end of the second external extension rib 2 is always clamped by the ball elastic clamping part in a tension state, the effective butt joint of the second external extension rib 2 and the ball elastic clamping part is realized, and the tensile anti-drop performance of the mechanical joint for construction is improved; and, through setting up the tip of first epitaxial muscle 1 and second epitaxial muscle 2 as the ball head end for socket joint 3 can realize certain radial adjustment for first epitaxial muscle 1 and second epitaxial muscle 2, with this butt joint to the first epitaxial muscle 1 and the second epitaxial muscle 2 that are located different axle of realization, improves the flexibility that mechanical joint was docked for the building, improves the general performance of mechanical joint for the building. The connection order of the first extension bar 1 and the second extension bar 2 and the ball elastic clamping part is not limited, and the connection order is selected according to actual conditions.

Further, in order to improve the overall structural strength of the mechanical joint for construction, two ball-head elastic clamping joints are respectively integrally formed at two axial ends of the socket chuck 3; in order to ensure that the first ball end 12 of the first external bead 1 and/or the second ball end 22 of the second external bead 2 can radially expand the corresponding ball elastic clamping part, as shown in fig. 1 and 3, at least one ball elastic clamping part is provided with at least two elastic clamping pieces 31 circumferentially arranged at intervals around the central axis of the socket clamp 3, each elastic clamping piece 31 gradually approaches towards the central axis of the socket clamp 3 in the direction from inside to outside, and an arc clamping stop surface 32 adapting to the ball end is formed on the inner wall of one end of each elastic clamping piece 31 far away from the socket clamp 3; the ball elastic clamping part can be of the structure, and preferably, the two ball elastic clamping parts are of the structure, and the structure is specifically selected according to practical situations. Specifically, the arc-shaped anti-falling blocking surface is arranged to be matched with the first ball head end 12 or the second ball head end 22 to form spherical contact, and in the radial deflection process of the socket clamp 3 relative to the first extension rib 1 and/or the second extension rib 2, the first ball head end 12 or the second ball head end 22 is always in spherical contact with the arc-shaped anti-falling blocking surface, so that the stress area is increased, and the tensile property is improved; the number of the elastic cards 31 may be two, three, four or more, and the specific number is selected according to practical situations.

Further, in order to ensure that the outer locking member 4 can effectively lock and limit the ball head elastic clamping part, as shown in fig. 1, the outer locking member 4 is in threaded connection with the outer wall of the socket chuck 3; it will be appreciated that other connection forms of outer locking member 4 to socket head 3 are possible, such as: the outer locking piece 4 is in buckling connection with the outer wall of the socket chuck 3; alternatively, the outer locking member 4 is welded to the outer wall of the socket head 3; the connection form of the outer locking member 4 and the socket head 3 is not particularly limited, and is selected according to actual conditions.

Further, in order to ensure that the ball end of the first external bead 1 and/or the second external bead 2 is always clamped by the ball elastic clamping portion in a tensioned state, at least one external locking member 4 is provided with a locking cavity 42 adapted to the outer contour of the ball elastic clamping portion, and the locking cavity 42 is adapted to the outer contour of the ball elastic clamping portion after the ball end is clamped and matched with the ball elastic clamping portion; under the tension state, the outer locking piece 4 provides supporting force for the ball head elastic clamping part so as to prevent the ball head elastic clamping part from being stressed to be radially opened, and the tensile anti-drop performance of the mechanical joint for construction is improved.

Further, in order to improve the compression resistance of the mechanical joint for construction and ensure the connection effectiveness of the mechanical joint for construction, as shown in fig. 5, the first external bead 1 is provided with a first screw 11 positioned at the tail part of the ball end, and a first tightening nut 5 for tightly pressing the external locking member 4 against the socket chuck 3 is screwed on the first screw 11; after the mechanical joint for construction is pressed, the first tightening nut 5 abuts against the outer locking member 4, and the compressive property of the mechanical joint for construction is improved by bearing pressure between the first tightening nut 5 and the outer locking member 4.

Further, in order to further improve the compression resistance of the mechanical joint for construction, as shown in fig. 5, the second external rib 2 is provided with a second screw rod 21 positioned at the tail part of the ball end, and a second tightening nut 6 for tightly abutting the external locking member 4 against the socket and spigot chuck 3 is screwed on the second screw rod 21; after the mechanical joint for the building is pressed, the second tightening nut 6 abuts against the outer locking piece 4, and the compressive property of the mechanical joint for the building is improved through the pressure bearing of the second tightening nut 6 and the outer locking piece 4; the first tightening nut 5 and the second tightening nut 6 may be used alone or simultaneously, and preferably, the first tightening nut 5 and the second tightening nut 6 are used simultaneously to further improve the compression resistance of the mechanical joint for construction.

Example two

In this embodiment, the same reference numerals are given to the same parts as those of the first embodiment, and the same description is omitted.

Compared with the first embodiment, the construction machinery joint provided by the embodiment has the following distinguishing structural design: the outer locking member 4 in this embodiment is different in mounting and fixing modes, specifically: the two outer locking pieces 4 are fixedly connected; wherein, as shown in fig. 4, one end of one external locking member 4 is an external thread section 41, and the other external locking member 4 is a threaded hole which is matched with the external thread section 41; it will be appreciated that the two outer locking members 4 may also be secured by welding; through setting up the connection fixedly between two outer retaining members 4 to prevent to do too much processing to socket joint chuck 3, guarantee socket joint chuck 3's overall structure intensity, with the bulk strength who guarantees mechanical joint for the building.

Example III

In this embodiment, the same reference numerals are given to the same parts as those in the first and second embodiments, and the same description is omitted.

Compared with the first embodiment and the second embodiment, the construction machinery joint provided by the present embodiment has the following different structural design: in the embodiment, the pressure bearing piece 7 is arranged to replace the first tightening nut 5 and/or the second tightening nut 6; the specific structure is as follows: the mechanical joint for construction also comprises a pressure-bearing piece 7 which is used for propping the outer locking piece 4 against the socket chuck 3; wherein the pressure-bearing piece 7 is pin-connected with the first external rib 1; and/or the bearing member 7 is pinned to the second external bead 2; the pressure bearing piece 7 is fixed with the first extension rib 1 and/or the second extension rib 2 and the pressure bearing piece 7 through pins, pin shafts and the like, and the pressure bearing piece 7 can be installed and fixed after the outer locking piece 4 is assembled.

As can be appreciated, as shown in fig. 6, the bearing member 7 is welded to the first external bead 1; and/or the pressure-bearing member 7 is welded to the second external bead 2; in order to improve the stability of the mounting of the pressure piece 7, the pressure piece 7 can preferably also be welded to the outer locking piece 4. Or the pressure-bearing member 7 is of a hoop structure, and the pressure-bearing member 7 is hooped with the first external extension rib 1; and/or the pressure-bearing member 7 is hooped on the second external rib 2; the specific structure and the mounting form of the pressure receiving member 7 are not limited as long as the pressure receiving member 7 can achieve that the first extension rib 1 and/or the second extension rib 2 do not move axially relative to the socket head 3 when the mechanical joint for construction is pressed.

Example IV

In this embodiment, the same reference numerals are given to the same parts as those of the first, second and third embodiments, and the same description is omitted.

The utility model also discloses a concrete prefabricated member group: as shown in fig. 7 and 8, the concrete prefabricated member group includes at least two adjacent concrete prefabricated members 8 disposed in opposite directions, wherein an exposed first extension rib 1 is disposed at an end of one concrete prefabricated member 8, wherein an exposed second extension rib 2 is disposed at an end of the other concrete prefabricated member 8, and the first extension rib 1 and the second extension rib 2 are connected through a mechanical joint for construction, which is any one of the mechanical joints for construction in the above embodiments.

Further, the first extension bar 1 is integrally formed at the stressed bar end of a concrete prefabricated member 8 to be butted; and/or the second extension bar 2 is integrally formed at the end part of the stress bar of the other concrete prefabricated member 8 to be butted; or the first extension bar 1 is connected with the stress bar of a concrete prefabricated member 8 to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection; and/or the second extension bar 2 is connected with the stress bar of the other concrete prefabricated member 8 to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection; the structures of the first extension rib 1 and the second extension rib 2 may be the same or different, and specifically selected according to practical situations.

Further, the concrete prefabricated member 8 may be a wall plate, a floor slab, a column, a beam, a pile, or the like; and two concrete prefabricated members 8 of butt joint can be the same kind of structure body, also can be different kinds of structure bodies, for example two concrete prefabricated members 8 are wallboard and floor respectively, and the horizontal, vertical or slope butt joint of two adjacent concrete prefabricated members 8 can be realized to the mechanical joint for building.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Claims

1. A mechanical joint for construction, comprising: the two axial ends are provided with socket chucks (3) of ball head elastic clamping parts, a first extension rib (1) of one ball head elastic clamping part is inserted at the ball head end, a second extension rib (2) of the other ball head elastic clamping part is inserted at the ball head end, and two outer locking pieces (4) which are respectively used for preventing the two ball head elastic clamping parts from being radially opened.

2. The mechanical joint for construction according to claim 1, wherein at least one of the ball-end elastic clamping portions is provided with at least two elastic clamping pieces (31) circumferentially arranged around the central axis of the socket clamp (3) at intervals, each elastic clamping piece (31) is gradually closed towards the central axis of the socket clamp (3) in the direction from inside to outside, and each elastic clamping piece (31) is provided with an arc-shaped clamping stop surface (32) adapted to the ball-end at least at the inner wall of one end far away from the socket clamp (3).

3. A construction machine joint according to claim 2, wherein,

the outer locking piece (4) is in threaded connection with the outer wall of the socket chuck (3);

or the outer locking piece (4) is in buckling connection with the outer wall of the socket chuck (3);

or the outer locking piece (4) is welded with the outer wall of the socket clamp (3).

4. A construction machine joint according to claim 2, wherein two of said outer locking members (4) are fixedly connected;

one end of one outer locking piece (4) is an outer thread section (41), and the other outer locking piece (4) is a threaded hole matched with the outer thread section (41);

or, the two outer locking pieces (4) are welded and fixed.

5. A construction machine joint according to any one of claims 1-4, wherein at least one of said outer locking members (4) has a locking cavity (42) adapted to the outer contour of said ball-end resilient clamping portion.

6. A construction machine joint according to any one of claims 1 to 4, wherein,

the first extension rib (1) is provided with a first screw rod (11) positioned at the tail part of the ball end, and a first tightening nut (5) for tightly propping the outer locking piece (4) towards the socket chuck (3) is screwed on the first screw rod (11);

and/or the second external extension rib (2) is provided with a second screw rod (21) positioned at the tail part of the ball end, and a second tightening nut (6) for tightly abutting the external locking piece (4) towards the socket chuck (3) is screwed on the second screw rod (21).

7. A construction machine joint according to any one of claims 1-4, further comprising a pressure member (7) for abutting the outer locking member (4) against the socket head (3);

wherein the pressure-bearing piece (7) is pin-connected with the first extension rib (1);

and/or the pressure-bearing piece (7) is pin-connected to the second external rib (2);

or the pressure-bearing piece (7) is welded to the first extension rib (1);

and/or the pressure-bearing piece (7) is welded to the second external rib (2).

8. A construction machine joint according to any one of claims 1-4, further comprising a pressure member (7) for abutting the outer locking member (4) against the socket head (3);

wherein the pressure-bearing member (7) is hooped with the first extension rib (1);

and/or the pressure-bearing piece (7) is hooped with the second external rib (2).

9. A concrete prefabricated member set, characterized by comprising at least two adjacent oppositely arranged concrete prefabricated members (8), wherein the end part of one concrete prefabricated member (8) is provided with a first exposed extension rib (1), the end part of the other concrete prefabricated member (8) is provided with a second exposed extension rib (2), the first extension rib (1) and the second extension rib (2) are connected through a mechanical joint for construction, and the mechanical joint for construction is a mechanical joint for construction according to any one of claims 1-8.

10. A set of concrete prefabricated elements according to claim 9, characterized in that said first external bead (1) is integrally formed at the stressed web end of a concrete prefabricated element (8) to be butted;

and/or the second external extension rib (2) is integrally formed at the stressed rib end part of the other concrete prefabricated member (8) to be butted;

or the first extension rib (1) is connected with the stress rib of a concrete prefabricated member (8) to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection;

and/or the second extension rib (2) is connected with the stress rib of the other concrete prefabricated member (8) to be butted in one or more modes of screw connection, clamping connection, welding, bonding and magnetic connection.