CN215907014U - Unit connection node of prefabricated building - Google Patents
Unit connection node of prefabricated building Download PDFInfo
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- CN215907014U CN215907014U CN202120653796.6U CN202120653796U CN215907014U CN 215907014 U CN215907014 U CN 215907014U CN 202120653796 U CN202120653796 U CN 202120653796U CN 215907014 U CN215907014 U CN 215907014U
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Abstract
The utility model discloses a unit connecting node of an assembly type building, which comprises a first member and a second member, wherein the first member is provided with a plurality of first mounting holes, the second member is provided with a plurality of second mounting holes, a bolt assembly comprises a screw rod and a nut, the nut is connected with the screw rod through internal threads, the screw rod comprises a head part, a thread part and a pin tail part which are sequentially arranged, and a cutting groove is formed between the thread part and the pin tail part; the outer surface of one end, close to the sleeve, of the head of the screw is a conical surface, and the inner surface of one end, close to the head of the screw, of the sleeve is a conical surface matched with the conical surface of the head of the screw; the surfaces of the sleeve and the nut, which are in contact with each other, are respectively provided with a plurality of tooth bodies which are arranged along the circumferential direction, and the plurality of tooth bodies are continuously arranged. The utility model greatly improves the construction efficiency, has low requirement on the professional degree of personnel, has strong structural stability of assembly, can avoid slipping and follow-up rotation, and can not loosen and fall off after long-term use.
Description
Technical Field
The utility model relates to the field of buildings, in particular to a unit connecting node of an assembly type building.
Background
As technology has matured, fabricated buildings have begun to emerge and are of general interest to the construction industry. The prefabricated building refers to a building assembled on a construction site by using prefabricated components. The building has the advantages of high building speed, less restriction by climatic conditions, labor saving and building quality improvement. For the connection of various tubular components in a fabricated building, spot welding is generally used to weld the steel pipe column and the steel sleeve together. However, the method has the disadvantages that the binding force between the steel sleeve and the steel pipe column is not strong, the overall performance is insufficient, the assembly is complex and time-consuming, and the professional degree of a constructor is excessively depended on.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a unit connecting node of an assembly type building, which greatly improves the construction efficiency, has low requirement on the professional degree of personnel, has strong structural stability of assembly, can avoid slipping and follow-up rotation, and cannot loosen and fall off after long-term use.
In order to achieve the purpose, the utility model adopts the technical scheme that: a unit connecting node of an assembly type building comprises a first member and a second member, wherein the first member is provided with a plurality of first mounting holes, the second member is provided with a plurality of second mounting holes, and a bolt assembly sequentially penetrates through the first mounting holes in the first member and the corresponding second mounting holes in the second member to connect the first member with the second member;
the bolt assembly comprises a screw and a nut connected with the screw through an internal thread, the screw comprises a head part, a thread part and a pin tail part which are sequentially arranged, and a cutting groove is formed between the thread part and the pin tail part;
the nut is in threaded connection with the threaded part of the screw, a sleeve is movably sleeved on the screw and is positioned between the head of the screw and the nut, one end face of the sleeve is in contact with one end face of the nut, a plurality of wire grooves are formed in the other end of the sleeve, each wire groove is formed in parallel to the axial direction of the sleeve, the plurality of wire grooves are arranged at intervals along the circumferential direction of the sleeve, and one end of the head of the screw can be embedded into the sleeve;
the outer surface of one end, close to the sleeve, of the head of the screw is a conical surface, and the inner surface of one end, close to the head of the screw, of the sleeve is a conical surface matched with the conical surface of the head of the screw;
the surface of the sleeve, which is in contact with the nut, is respectively provided with a plurality of tooth bodies which are arranged along the circumferential direction, and the tooth bodies are continuously arranged, so that a tooth groove is formed between adjacent tooth bodies, the tooth bodies on the sleeve are embedded into the tooth groove on the nut, and the tooth bodies on the nut are embedded into the tooth groove on the sleeve.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, a gasket is arranged between the sleeve and the nut, the gasket is sleeved on the threaded portion of the screw, and two end faces of the gasket are respectively contacted with the nut and the end face of the sleeve, which is close to one end of the gasket.
2. In the above scheme, the length of wire casing on the sleeve is 5~9 with telescopic length ratio: 10.
3. in the above scheme, one surface of the tooth body is a vertical surface parallel to the axial direction of the screw, the other surface of the tooth body is an inclined surface, and an included angle formed between the vertical surface and the inclined surface is an acute angle.
4. In the scheme, an included angle formed between the vertical surface and the inclined surface of the tooth body is 55-65 degrees.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the unit connecting node of the assembly type building, disclosed by the utility model, replaces welding to realize the connection of two components, only needs to operate on one side of the components, greatly reduces the requirement on the operation space, is simple and rapid to assemble, saves time and labor, greatly improves the construction efficiency, has low requirement on the professional degree of personnel, has strong structural stability of assembly, can avoid slipping and follow-up rotation, and cannot be loosened and fall off after long-term use.
Drawings
FIG. 1 is a schematic view of a unit connection node structure of the prefabricated building according to the present invention;
FIG. 2 is a partial cross-sectional structural view of FIG. 1;
FIG. 3 is a schematic structural view of a bolt assembly in a unit connection node of the prefabricated building according to the present invention;
fig. 4 is an exploded view of a bolt assembly in a unit connection node of a prefabricated building according to the present invention.
In the above drawings: 1. a screw; 2. a nut; 3. a head portion; 4. a threaded portion; 5. a pin tail; 6. cutting off the groove; 7. a sleeve; 8. a wire slot; 10. a gasket; 21. a first mounting hole; 22. a first member; 23. a second mounting hole; 24. a second member.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a unit connecting node of an assembly type building comprises a first member 22 provided with a plurality of first mounting holes 21 and a second member 24 provided with a plurality of second mounting holes 23, wherein a bolt assembly sequentially penetrates through the first mounting holes 21 on the first member 22 and the corresponding second mounting holes 23 on the second member 24 to connect the first member 22 and the second member 24;
the bolt assembly comprises a screw rod 1 and a nut 2 connected with the screw rod 1 through internal threads, the screw rod 1 comprises a head part 3, a thread part 4 and a pin tail part 5 which are sequentially arranged, and a cutting groove 6 is formed between the thread part 4 and the pin tail part 5;
the nut 2 is in threaded connection with the threaded portion 4 of the screw rod 1, a sleeve 7 is movably sleeved on the screw rod 1 and is positioned between the head portion 3 of the screw rod 1 and the nut 2, one end face of the sleeve 7 is in contact with one end face of the nut 2, a plurality of wire grooves 8 are formed in the other end of the sleeve 7, each wire groove 8 is formed in a manner of being parallel to the axial direction of the sleeve 7, the plurality of wire grooves 8 are arranged at intervals along the circumferential direction of the sleeve 7, and one end of the head portion 3 of the screw rod 1 can be embedded into the sleeve 7;
the outer surface of one end of the head 3 of the screw rod 1, which is close to the sleeve 7, is a conical surface, and the inner surface of one end of the sleeve 7, which is close to the head 3 of the screw rod 1, is a conical surface matched with the conical surface of the head 3 of the screw rod 1;
the surfaces of the sleeve 7 and the nut 2 which are contacted with each other are respectively provided with a plurality of tooth bodies which are distributed along the circumferential direction, and the tooth bodies are continuously arranged, so that a tooth groove is formed between the adjacent tooth bodies, the tooth body on the sleeve 7 is embedded into the tooth groove on the nut 2, and the tooth body on the nut 2 is embedded into the tooth groove on the sleeve 7;
make the nut rotatory in the past only in one direction, it leads to connecting not hard up to avoid taking place to turn round after the installation is accomplished, and directly set up the tooth body on sleeve and nut, structural integrity and stability are good.
A gasket 10 is arranged between the sleeve 7 and the nut 2, the gasket 10 is sleeved on the threaded part 4 of the screw rod 1, and two end surfaces of the gasket 10 are respectively contacted with the nut 2 and the end surface of the sleeve 7 close to one end of the gasket 10;
the ratio of the length of the wire slot 8 on the sleeve 7 to the length of the sleeve 7 is 6: 10;
one surface of the tooth body is a vertical surface parallel to the axial direction of the screw 1, the other surface of the tooth body is an inclined surface, and an included angle formed between the vertical surface and the inclined surface is an acute angle;
the vertical surface and the inclined surface of the tooth body form an included angle of 65 degrees.
Example 2: a unit connecting node of an assembly type building comprises a first member 22 provided with a plurality of first mounting holes 21 and a second member 24 provided with a plurality of second mounting holes 23, wherein a bolt assembly sequentially penetrates through the first mounting holes 21 on the first member 22 and the corresponding second mounting holes 23 on the second member 24 to connect the first member 22 and the second member 24;
the bolt assembly comprises a screw rod 1 and a nut 2 connected with the screw rod 1 through internal threads, the screw rod 1 comprises a head part 3, a thread part 4 and a pin tail part 5 which are sequentially arranged, and a cutting groove 6 is formed between the thread part 4 and the pin tail part 5;
the nut 2 is in threaded connection with the threaded portion 4 of the screw rod 1, a sleeve 7 is movably sleeved on the screw rod 1 and is positioned between the head portion 3 of the screw rod 1 and the nut 2, one end face of the sleeve 7 is in contact with one end face of the nut 2, a plurality of wire grooves 8 are formed in the other end of the sleeve 7, each wire groove 8 is formed in a manner of being parallel to the axial direction of the sleeve 7, the plurality of wire grooves 8 are arranged at intervals along the circumferential direction of the sleeve 7, and one end of the head portion 3 of the screw rod 1 can be embedded into the sleeve 7;
the outer surface of one end of the head 3 of the screw rod 1, which is close to the sleeve 7, is a conical surface, and the inner surface of one end of the sleeve 7, which is close to the head 3 of the screw rod 1, is a conical surface matched with the conical surface of the head 3 of the screw rod 1;
the surface of the sleeve 7, which is in contact with the nut 2, is respectively provided with a plurality of tooth bodies which are arranged along the circumferential direction, and the tooth bodies are continuously arranged, so that a tooth groove is formed between the adjacent tooth bodies, the tooth bodies on the sleeve 7 are embedded into the tooth groove on the nut 2, and the tooth bodies on the nut 2 are embedded into the tooth groove on the sleeve 7.
The ratio of the length of the wire groove 8 on the sleeve 7 to the length of the sleeve 7 is 9: 10;
one surface of the tooth body is a vertical surface parallel to the axial direction of the screw 1, the other surface of the tooth body is an inclined surface, and an included angle formed between the vertical surface and the inclined surface is an acute angle;
an included angle formed between the vertical surface and the inclined surface of the tooth body is 55 degrees;
the first member 22 is a tube; the head 3 of the screw 1 and one end of the sleeve 7 pass through the first mounting hole 21 on the first member 22 and are positioned in the tube body, and the nut 2 is positioned on one side of the second member 24 far away from the first member 22; the wire groove 8 of the sleeve 7 extends into the first mounting hole 21 of the first member 22.
When the screw bolt assembly is used, the screw bolt, the nut and the sleeve are assembled into an integral bolt assembly, and one end of the head of the screw bolt is embedded into the sleeve, so that the nut and the sleeve are kept relatively fixed;
then the bolt assembly passes through the corresponding mounting holes on the first member and the second member;
then, using a specific fastening tool, rotating the nut while transmitting the rotational torque of the nut to the cut-off groove between the pin tail and the threaded portion, the pin tail breaking at the cut-off groove when subjected to a certain torque;
in the rotation process of the nut, the sleeve moves towards the head of the screw rod under the action of the nut, so that the head of the screw rod is further embedded into the sleeve, and meanwhile, the sleeve expands outwards and expands under the action of one end, with a conical surface, of the head of the screw rod;
furthermore, the nut and the sleeve are matched with each other to prevent the screw from rotating reversely to loosen the connection.
When the unit connection node of the assembly type building is adopted, the welding is replaced, the connection of two components is realized, the operation is only carried out on one side of the components, the operation space requirement is greatly reduced, the assembly is simple and rapid, the time and the labor are saved, the construction efficiency is greatly improved, the requirement on the professional degree of personnel is low, the structural stability of the assembly is strong, the slipping and the follow-up rotation can be avoided, and the loosening and falling condition can not occur in the long-term use.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. A unit connecting node of an assembly type building comprises a first member (22) provided with a plurality of first mounting holes (21) and a second member (24) provided with a plurality of second mounting holes (23), wherein a bolt assembly sequentially penetrates through the first mounting holes (21) in the first member (22) and the corresponding second mounting holes (23) in the second member (24) to connect the first member (22) and the second member (24);
the method is characterized in that: the bolt assembly comprises a screw rod (1) and a nut (2) connected with the screw rod (1) through internal threads, the screw rod (1) comprises a head part (3), a thread part (4) and a pin tail part (5) which are sequentially arranged, and a cutting groove (6) is formed between the thread part (4) and the pin tail part (5);
the nut (2) is in threaded connection with the threaded portion (4) of the screw (1), a sleeve (7) is movably sleeved on the screw (1) and is located between the head portion (3) of the screw (1) and the nut (2), one end face of the sleeve (7) is in contact with one end face of the nut (2), a plurality of wire grooves (8) are formed in the other end of the sleeve (7), each wire groove (8) is formed in parallel to the axial direction of the sleeve (7), the plurality of wire grooves (8) are arranged at intervals along the circumferential direction of the sleeve (7), and one end of the head portion (3) of the screw (1) can be embedded into the sleeve (7);
the outer surface of one end, close to the sleeve (7), of the head (3) of the screw (1) is a conical surface, and the inner surface of one end, close to the head (3) of the screw (1), of the sleeve (7) is a conical surface matched with the conical surface of the head (3) of the screw (1);
the surface of the sleeve (7) and the surface of the nut (2) which are contacted with each other are respectively provided with a plurality of tooth bodies which are arranged along the circumferential direction, the tooth bodies are continuously arranged, so that a tooth groove is formed between the adjacent tooth bodies, the tooth bodies on the sleeve (7) are embedded into the tooth groove on the nut (2), and the tooth bodies on the nut (2) are embedded into the tooth groove on the sleeve (7).
2. The unit connecting node of a fabricated building according to claim 1, wherein: a gasket (10) is arranged between the sleeve (7) and the nut (2), the gasket (10) is sleeved on the threaded portion (4) of the screw rod (1), and two end faces of the gasket (10) are respectively in contact with end faces of the nut (2) and the sleeve (7) close to one end of the gasket (10).
3. The unit connecting node of a fabricated building according to claim 1, wherein: the length of wire casing (8) is 5~9 with the length ratio of sleeve (7) on sleeve (7): 10.
4. the unit connecting node of a fabricated building according to claim 1, wherein: one surface of the tooth body is a vertical surface parallel to the axial direction of the screw rod (1), the other surface of the tooth body is an inclined surface, and an included angle formed between the vertical surface and the inclined surface is an acute angle.
5. The unit connecting node of a fabricated building according to claim 4, wherein: an included angle formed between the vertical surface and the inclined surface of the tooth body is 55-65 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653796.6U CN215907014U (en) | 2021-03-31 | 2021-03-31 | Unit connection node of prefabricated building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653796.6U CN215907014U (en) | 2021-03-31 | 2021-03-31 | Unit connection node of prefabricated building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215907014U true CN215907014U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120653796.6U Active CN215907014U (en) | 2021-03-31 | 2021-03-31 | Unit connection node of prefabricated building |
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| CN (1) | CN215907014U (en) |
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2021
- 2021-03-31 CN CN202120653796.6U patent/CN215907014U/en active Active
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