CN217924441U

CN217924441U - Universal joint and prefabricated sub-assembly for butt joint of embedded bars

Info

Publication number: CN217924441U
Application number: CN202221094109.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Haoyu Construction Technology Co ltd
Current assignee: Hangzhou Haoyu Construction Technology Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-11-29
Anticipated expiration: 2032-05-09

Abstract

The utility model relates to the technical field of assembled building connection, in particular to a universal joint and a prefabricated assembly for pre-embedded rib butt joint, which comprises two extension rib groups with ball joints and a butt joint adjusting part for connecting the two extension rib groups, wherein one end of the extension rib group is connected with one of the pre-embedded rib and the butt joint adjusting part, and the other end of the extension rib group is connected with the other of the pre-embedded rib and the butt joint adjusting part; wherein, the ball joint cover of extension muscle group is equipped with the location locking piece. The utility model discloses a ball joint on the extension muscle group makes the extension muscle group bigger at the atress area of contact of butt joint in-process junction, and the distance between two extension muscle groups of butt joint adjusting part adjustment is again convenient for extension muscle group to connect the pre-buried muscle of disalignment as an organic whole structure, and location locking piece is used for preventing that ball joint is not hard up, and then improves connection stability and the reliability under the different atress circumstances behind two pre-buried muscle docks.

Description

Universal joint and prefabricated sub-assembly for butt joint of embedded bars

Technical Field

The utility model relates to an assembly type structure connection technical field especially involves a pre-buried muscle is to universal joint and prefabricated sub-assembly for butt joint.

Background

The prefabricated building is characterized in that the prefabricated building is produced in a component factory, the field assembly type installation is used as a mode, standardized design, factory production, assembly construction and integrated decoration and informatization management are used as characteristics, various service fields such as research and development design, production and manufacturing, field assembly and the like are integrated, the sustainable development novel building production mode with the maximum energy-saving, environment-friendly and full-period value of building products is realized, and the mode can be simply understood as follows: the building is formed by directly assembling all parts of the building on site.

At present, each part in the fabricated building is usually produced in advance in a factory workshop for shaping, and is concrete, use pre-buried muscle as the skeleton, then place the skeleton in the mould in rethread concreting material makes, when each part needs the equipment, the steel bar structure who constitutes the fabricated building connects and then forms integrative structure, however, in the assembling process, the axial misalignment appears based on the influence of manufacturing accuracy and assembly accuracy in the pre-buried muscle of two prefabricated components under the assembly condition, especially the horizontal pre-buried muscle that partly corresponds between two adjacent prefabricated components can not guarantee completely coaxial, consequently need connect through angle adjustable's connecting piece, but current this type of connection structure atress performance remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses based on how to improve assembly type structure's pre-buried muscle's butt joint atress performance, provide a pre-buried muscle is to universal joint for butt joint.

In order to achieve the above object, the utility model provides a pair of universal joint is used in pre-buried muscle butt joint, include: the device comprises two extension rib groups and a butt joint adjusting piece, wherein each extension rib group is provided with a ball joint, the butt joint adjusting piece is connected with the two extension rib groups, one end of each extension rib group is connected with one of a pre-buried rib and the butt joint adjusting piece, and the other end of each extension rib group is connected with the other one of the pre-buried rib and the butt joint adjusting piece; wherein, the ball joint cover of extension muscle group is equipped with the location locking piece.

The technical scheme of the utility model still include: the extension rib group includes: the ball head screw comprises a ball head screw, a connecting nut and a locking nut, wherein the diameter of the minimum cross section of a ball head is larger than the maximum outer diameter of a rod body, the tail part of the ball head screw is matched with the spherical surface of the ball head screw, the locking nut is screwed on the rod body and can tightly support the ball head against the connecting nut, and the connecting nut is matched with the spherical surface of the locking nut.

The technical scheme of the utility model still include: the tail part of the connecting nut is provided with an inner spherical arc surface and an outer spherical arc surface which are concentrically arranged.

The technical scheme of the utility model still include: in the axial direction of the connecting nut, an arc center angle alpha formed by the inner spherical cambered surface is less than or equal to an arc center angle beta formed by the outer spherical cambered surface;

and/or the axial minimum combined length L1 of the connecting nut and the locking nut is smaller than the axial length L2 of the ball head screw rod.

The technical scheme of the utility model still include: the coupling nut further comprises: locate the coupling nut afterbody and with the body of rod movable part of interior globoid intercommunication and the internal thread connecting portion that is located the coupling nut head.

The technical scheme of the utility model still include: the lock nut includes: the limiting groove is used for accommodating the connecting nut and matched with the outer spherical cambered surface, and a threaded hole is used for the ball head screw rod to pass through;

the connecting nut can partially rotate in the limiting groove of the locking nut;

and the ball head of the ball head screw is also provided with a screwing part.

The technical scheme of the utility model still include: the butt joint adjusting piece is a stud bolt arranged on the connecting nut;

or the butt joint adjusting piece is a double-end nut connected with the ball head screw;

and the outer peripheral walls of the stud bolts and the stud nuts are provided with rotating force application parts which are in circular or polygonal structures.

The technical scheme of the utility model still include: an embedded nut is arranged at the end part of the embedded rib, and one end of the ball head screw rod, which is far away from the ball head, is installed in the embedded nut;

the embedded nut is in threaded connection with the embedded rib, and/or the embedded nut is in threaded connection with the ball head screw;

or the embedded nut is connected with the embedded rib in one of clamping, welding and bonding, and/or the embedded nut is connected with the ball screw in one of clamping, welding and bonding;

or the embedded nut and the embedded rib are of an integral structure.

The technical scheme of the utility model still include: the embedded ribs are connected with the connecting nuts through threads;

or the embedded rib is connected with the connecting nut in one of clamping, bonding and welding modes.

The technical scheme has the beneficial effects that: two extension muscle groups that all have ball joint connect respectively on two pre-buried muscle, the ball joint that extension muscle group has is the connected mode of sphere and sphere, make extension muscle group the atress area of contact at the butt joint in-process junction bigger, and, through the distance between two extension muscle groups of butt joint adjustment connection, be convenient for extension muscle group is connected the pre-buried muscle of disalignment as an organic whole structure, in addition, it is not hard up in order to prevent ball joint to still overlap the location locking piece on the ball joint of extension muscle group, thereby improve connection stability and the reliability under the different atress circumstances after two pre-buried muscle docks.

In addition, the prefabricated assembly comprises at least two prefabricated parts which are arranged adjacently, and the two adjacent prefabricated parts are connected through the universal joint for the butt joint of the embedded ribs.

The beneficial effect of this prefabricated sub-assembly: the universal joint for butt joint of the embedded ribs is adopted, so that the connection stability and reliability between two adjacent prefabricated members are improved.

Drawings

Fig. 1 is a schematic perspective view of a universal joint according to a first embodiment of the present invention;

fig. 2 is an exploded view of a universal joint according to a first embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a universal joint according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a universal joint for butting embedded bars in the first embodiment of the present invention;

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

fig. 6 is a schematic cross-sectional view of a universal joint according to a second embodiment of the present invention;

fig. 7 is a schematic perspective view of a universal joint according to a second embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a universal joint for butt joint of embedded bars according to a second embodiment of the present invention;

fig. 9 is a schematic structural view of the connecting nut of the present invention;

FIG. 10 is a schematic view of the structure of the ball screw of the present invention;

fig. 11 is a schematic structural view of the third embodiment of the present invention after the prefabricated members are connected to each other.

In the figure:

1. an extension rib group; 11. a ball head screw; 111. a screwing part; 12. a lock nut; 121. a limiting groove; 122. a threaded hole; 13. a connecting nut; 131. an inner spherical arc surface; 132. an outer spherical arc surface; 133. a rod body movable part; 134. an internal thread connection; 2. butting an adjusting piece; 21. a rotation force application part; 3. pre-burying ribs; 4. pre-burying a nut; 100. and (5) performing the prefabricated member.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; 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, and do not necessarily require or imply any actual relationship or order between such elements.

< example one >

In this embodiment, a joint structure for connecting the parts of the prefabricated building is mainly provided, and specifically, the prefabricated building is a concrete product formed by combining a framework composed of embedded bars and concrete materials, and the embedded bars of the adjacent prefabricated components are connected through the joint structure to complete the assembly of the prefabricated components.

As shown in fig. 1 to 5, the universal joint for embedded bar butt joint for connecting the assembled parts includes: the device comprises two extension rib groups 1 with ball joints and a butt joint adjusting piece 2 connected with the two extension rib groups 1, wherein one end of each extension rib group 1 is connected with one of a pre-embedded rib 3 and the butt joint adjusting piece 2, and the other end of each extension rib group 1 is connected with the other of the pre-embedded rib 3 and the butt joint adjusting piece 2; in addition, the ball joint of the extension rib group 1 is sleeved with a positioning locking piece, and the sleeving in the embodiment means that a part of the inner surface of the positioning locking piece and a part of the outer surface of the ball joint form continuous contact in the circumferential direction of the extension rib group 1.

Specifically, the extension rib group 1 is connected with the spherical surface through the spherical joint in a spherical-joint connection mode, the stress contact area of the joint in the butt joint process is ensured to be large enough, the extension rib group 1 can be flexibly adjusted in multiple directions in a rotating mode, then the distance between the two extension rib groups is adjusted and connected through the butt joint adjusting piece 2, so that the axial lead D1 and the two embedded ribs 3, which are not on the same horizontal line, of the joint in the figure 4 caused by construction errors or assembly precision are connected into a whole, the two extension rib groups 1 with the spherical joints can be adjusted in a rotating mode at least twice in multiple directions, finally the spherical joints of the extension rib groups 1 are sleeved with the positioning locking pieces to prevent the spherical joints from loosening, the connection stability and the reliability of the two embedded ribs 3 in the butt joint under different stress conditions are improved, and the tensile, anti-pulling, anti-pressure and anti-bending strengths of the universal joints for the butt joint of the embedded ribs are further ensured.

In the present embodiment, as shown in fig. 1 to 4, the extension rib group 1 includes: the minimum cross-sectional diameter of the ball head is greater than the maximum outer diameter of the rod body, the ball head screw 11, the connecting nut 13 with the tail matched with the spherical surface of the ball head screw 11, and the locking nut 12 screwed on the rod body and capable of tightly abutting the ball head against the connecting nut 13, wherein the locking nut 12 is a preferable structure for positioning the locking piece in the embodiment, and certainly, the locking nut is not limited to the structure, and the tail of the connecting nut 13 further has an inner spherical arc surface 131 and an outer spherical arc surface 132 which are arranged in the same spherical center.

Specifically, as shown in fig. 3, the rod body of the ball-head screw 11 penetrates through the connecting nut 13, and the ball head and the inner spherical arc surface 131 at the tail of the connecting nut 13 form spherical surface fit, that is, when the multi-direction position of the ball-head screw 11 is adjusted, the ball head of the ball-head screw 11 rotates in the inner cavity at the tail of the connecting nut 13 and the spherical surface of the ball head and the inner spherical arc surface of the connecting nut 13 are always kept in fit to ensure that the stressed contact surface is large enough, and when the extension rib group 1 is subjected to a drawing force in the splicing direction, the spherical surface of the ball head and the inner spherical arc surface 131 of the connecting nut 13 are ensured to be in fit to ensure the tensile strength; when extension muscle group 1 received the extrusion force on the concatenation direction, so lock nut 12 because with 11 threaded connection lock coupling nut 13 of bulb screw rod, ensure the sphere of bulb and coupling nut 13's interior globoid laminating, guaranteed compressive strength, therefore no matter which kind of circumstances, all be stable face laminating state, it is concrete, lock nut 12 includes: hold coupling nut 13 and with ectosphere cambered surface 132 complex spacing groove 121 to and the screw hole 122 that supplies bulb screw rod 11 to pass, make bulb screw rod 11 and locking nut 12 lock, wherein, coupling nut 13 can carry out the part in locking nut 12's spacing groove 121 and rotate, make embedded muscle to joint universal joint can effectual realization tensile resistance to compression effect when connecting.

In this embodiment, as shown in fig. 1 and 9, in the axial direction of the connection nut 13, an arc center angle α formed by the inner spherical arc surface 131 on the inner wall of the tail portion of the connection nut 13 is greater than or equal to an arc center angle β formed by the outer spherical arc surface on the outer wall, and/or an axial minimum combined length L1 of the connection nut 13 and the locking nut 12 is smaller than an axial length L2 of the ball-end screw 11, and on the one hand, the arc center angle α is greater than or equal to the arc center angle β to ensure an effective contact area between the ball end of the ball-end screw 11 and the inner spherical arc surface 131 of the connection nut 13, thereby avoiding an influence on the tensile effect of the joint due to the smaller effective contact area. In the embodiment, it is preferable that 140 ° ≧ α ≧ 40 °,80 ° ≧ β ≧ 15 °, on the other hand, as shown in fig. 3, L1 is smaller than L2, so as to avoid interference when two adjacent prefabricated building components are spliced with each other.

As shown in fig. 9, the coupling nut 13 further includes: a rod body movable part 133 arranged at the tail part of the connecting nut 13 and communicated with the inner spherical cambered surface 131, and an inner thread connecting part 134 positioned at the head part of the connecting nut 13. Specifically, as can be seen from fig. 5, when two embedded ribs 3 which are not on the same axial line are connected by using two extended rib groups 1, the outer spherical arc surface 132 and the inner spherical arc surface 131 of the connection nut 13 need to deflect for the lock nut 12 and the ball head screw 11 respectively to some extent, so as to complete the connection, and when the outer spherical arc surface and the inner spherical arc surface deflect, as shown in fig. 9, the rod body moving portion 133 provides a space for rod body movement of the ball head screw 11, so that the situation that the tail portion of the connection nut 13 forms a limit position and interferes with the rod body of the ball head screw 11 is avoided, and the connection effect between the two embedded ribs 3 is affected. In the present embodiment, the docking adjuster 2 is a stud bolt structure mounted on the female screw portion 134 of the coupling nut 13, specifically, in order to connect the coupling nuts 13 on the two extension rib groups 1, the docking adjuster is mounted on the female screw portion 134 of the coupling nut 13 by screw connection, and the rotation urging portion 21 having a polygonal structure is further provided on the outer peripheral wall of the stud bolt, and the rotation urging portion 21 may have a circular structure without affecting the operation. The actual operation is that after the positions of the connecting nut 13, the ball head screw 11 and the locking nut 12 are adjusted, the connecting nut is sleeved on the rotation force application part 21 through an auxiliary tool to perform certain axial rotation, so that the distance between the two extension rib groups 1 is shortened or prolonged, and the connecting effect of the pre-buried ribs 3 is ensured. Of course, the stud bolt is only one of the better using effects in this embodiment, and is not limited to this structure, and other structures capable of achieving the distance adjustment may be used.

In this embodiment, as shown in fig. 4, an embedded nut 4 is further disposed at an end of the embedded bar 3, one end of the ball-end screw 11, which is far away from the ball end, is installed in the embedded nut 4, the embedded nut 4 is in threaded connection with the embedded bar 3, and/or the embedded nut 4 is in threaded connection with the ball-end screw 11; or the embedded nut 4 is connected with the embedded rib 3 in one of clamping, welding and bonding, and/or the embedded nut 4 is connected with the ball head screw rod 11 in one of clamping, welding and bonding. Specifically, in this embodiment, when producing fabricated building, install on the tip of pre-buried muscle 3 embedded nut 4 earlier, then carry out concrete placement and take shape, during the construction, install two of them extension muscle group 1 respectively on the embedded nut 4 at 3 both ends of pre-buried muscle, when two pre-buried muscle 3 docks, only need to install on the coupling nut 13 on one of them extension muscle group 1 one of them one end of butt joint adjusting part 2, the other end is installed on the coupling nut 13 on another extension muscle group 1, can accomplish the butt joint of two pre-buried muscle 3, the butt joint is simple and convenient. Certainly, the embedded nut 4 and the embedded bar 3 are directly made into an integral structure, during production, the embedded nut 4 and the embedded bar 3 are directly made into an integral structure, then the cast concrete molding is arranged in a production mold, in addition, in order to better install the extension bar group 1 on the embedded nut 4, the ball head end part of the ball head screw rod 11 is further provided with a screwing part 111 which can be a sunken or raised inner polygonal structure, and a screwing tool is convenient to install the ball head screw rod 11, the connecting nut 13 and the locking nut 12 on the embedded nut 4.

< example II >

As shown in fig. 6 to 8, in the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

In the present application, there is provided a universal joint of another structural form, comprising: the method comprises the following steps: two extension muscle groups 1 that all have ball joint and the butt joint adjusting part 2 that links up two extension muscle groups 1, with the embodiment one difference in this embodiment butt joint adjusting part 2 be with the double-end nut of the ball head screw 11 connection on two extension muscle groups 1, it is concrete, as shown in fig. 8, install on pre-buried muscle 3 the coupling nut 13 that constitutes extension muscle group 1, wherein, pass through threaded connection between pre-buried muscle 3 and coupling nut 13, perhaps, pass through the joint between pre-buried muscle 3 and the coupling nut 13, bond, connect in the welding one kind of mode. And the one end that bulb screw rod 11 kept away from the bulb is installed in double-end nut, is equipped with the rotation application of force portion 21 that is polygonized structure on double-end nut's the periphery wall, is convenient for adjust the distance relation between two extension muscle groups 1. As can be seen from fig. 6-8, different from the first embodiment, the embedded nut 4 is omitted, the end of the embedded rib 3 is directly connected with the connecting nut 13 in the extension rib group 1, and the ball head screw 11 is connected through the double-headed nut, so that the material is saved, and the connecting effect of the embedded rib 3 and the tensile and compressive strength of the universal joint are ensured. Of course, in the present embodiment, the double-headed nut is also only a preferred embodiment, and is not limited to the above-described structure.

< example three >

As shown in fig. 11, in the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

In this embodiment, there is mainly provided a prefabricated assembly, which includes at least two prefabricated members 100 disposed adjacently, where the two adjacent prefabricated members 100 are connected by a universal joint for embedded rib butt joint mentioned in the first embodiment or the second embodiment, so as to ensure the connection effect and tensile and compressive strength between the prefabricated members, and in addition, the prefabricated members 100 may be any one of prefabricated walls, prefabricated bearing platforms, prefabricated slabs, prefabricated columns, prefabricated bay windows, prefabricated balconies, prefabricated terrace, prefabricated pipe corridors, prefabricated culverts, prefabricated frames, and prefabricated beams, and the prefabricated members may be concrete structures, steel-concrete structures, modern timber structure buildings, and the like.

It is right above the utility model provides a universal joint and prefabricated sub-assembly for pre-buried muscle butt joint have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a universal joint is used in butt joint of embedded muscle which characterized in that includes: the device comprises two extension rib groups and a butt joint adjusting piece, wherein each extension rib group is provided with a ball joint, the butt joint adjusting piece is connected with the two extension rib groups, one end of each extension rib group is connected with one of a pre-embedded rib and the butt joint adjusting piece, and the other end of each extension rib group is connected with the other of the pre-embedded rib and the butt joint adjusting piece; wherein, the ball joint of the extension rib group is sleeved with a positioning locking piece.

2. The universal joint for butting the embedded bars as claimed in claim 1, wherein: the extension rib group includes: the ball head screw comprises a ball head screw, a connecting nut and a locking nut, wherein the diameter of the minimum cross section of a ball head is larger than the maximum outer diameter of a rod body, the tail part of the ball head screw is matched with the spherical surface of the ball head screw, the locking nut is screwed on the rod body and can tightly support the ball head against the connecting nut, and the connecting nut is matched with the spherical surface of the locking nut.

3. The universal joint for butting the embedded bars as claimed in claim 2, wherein: the tail part of the connecting nut is provided with an inner spherical arc surface and an outer spherical arc surface which are concentrically arranged.

4. The universal joint for butt joint of embedded bars as claimed in claim 3, wherein: in the axial direction of the connecting nut, an arc center angle alpha formed by the inner spherical cambered surface is greater than or equal to an arc center angle beta formed by the outer spherical cambered surface;

5. The universal joint for butt joint of embedded bars as claimed in claim 3, wherein: the coupling nut further includes: locate the coupling nut afterbody and with the body of rod activity portion of interior cambered surface intercommunication and the internal thread connecting portion that is located the coupling nut head.

6. The universal joint for butting the embedded bars as claimed in claim 2, wherein: the lock nut includes: the limiting groove is used for accommodating the connecting nut and matched with the outer spherical cambered surface, and the threaded hole is used for the ball screw to pass through;

the ball head of the ball head screw is also provided with a screwing part.

7. The universal joint for butting the embedded bars as claimed in claim 2, wherein: the butt joint adjusting piece is a stud bolt arranged on the connecting nut;

be equipped with the rotation application of force portion that is polygonized structure on stud and the stud nut periphery wall.

8. The universal joint for butt joint of embedded bars as claimed in claim 2, characterized in that: an embedded nut is arranged at the end part of the embedded rib, and one end of the ball head screw rod, which is far away from the ball head, is arranged in the embedded nut;

the embedded nut is in threaded connection with the embedded bar, and/or the embedded nut is in threaded connection with the ball screw;

or the embedded nut and the embedded rib are of an integral structure.

9. The universal joint for butt joint of embedded bars as claimed in claim 2, characterized in that: the embedded ribs are connected with the connecting nuts through threads;

or the embedded ribs are connected with the connecting nuts in one mode of clamping, bonding and welding.

10. Prefabricated sub-assembly, including at least two adjacent prefabricated members that set up, its characterized in that: two adjacent prefabricated members are connected through the universal joint for embedded rib butt joint according to any one of claims 1-9.