Connecting joint structure for prefabricated parts

Abstract

The utility model provides a connecting node structure for a prefabricated part, which belongs to the field of prefabricated parts and comprises a connecting piece body, a connecting mechanism is arranged outside the connecting piece body, and a positioning component is arranged outside the connecting mechanism. According to the connecting piece, the effect of quickly connecting the prefabricated part and the connecting piece body together is achieved through the arranged connecting mechanism, in the connecting mechanism, one end of the prefabricated part is arranged at one end of the screw cylinder, then the screw cylinder is rotated, and then the end of the prefabricated part moves in the screw cylinder, so that the phenomenon that when the prefabricated part and the connecting piece body are connected, the prefabricated part and the connecting piece body are damaged is avoided. The problem that the plane of the prefabricated part cannot be parallel to the plane of the connecting piece body due to rotation of the prefabricated part is solved, and the effect of preventing the inserting rod from being accidentally separated from the connecting piece body is achieved through the arranged positioning assembly.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated components, in particular to a connection node structure for prefabricated components. Background Art

[0002] With the acceleration of the process of building industrialization, prefabricated and assembled concrete frame structures have gradually been widely used in industrial plants and civil buildings due to their advantages such as less on-site construction work, fast construction speed, flexible layout, large space, and high cost performance. In the prefabricated and assembled concrete frame structure system, the connection nodes between prefabricated components play a decisive role in structural performance such as bearing capacity, structural stiffness, and seismic resistance.

[0003] After searching, the prior art disclosed in Chinese patent publication number CN216156789U: "A connection node structure for prefabricated components, comprising a first prefabricated component, a second prefabricated component, and a first connecting rod, wherein the first connecting rod has a first inner cavity and a second inner cavity at both ends, a first insertion rod is provided on the first prefabricated component, and a second insertion rod is provided on the second prefabricated component. The first insertion rod is inserted into the first inner cavity and the two are threadedly connected, and the second insertion rod is inserted into the second inner cavity and the two are threadedly connected. This utility model provides a connection node structure for prefabricated components, which can ensure structural strength and has the characteristics of easy construction and high construction efficiency." However, the following defects still exist:

[0004] (1) However, when the device is used, multiple sleeves are directly screwed onto multiple connecting rods to fix multiple prefabricated components. However, the sleeves are fixed inside the prefabricated components. When the prefabricated components are screwed, the sides of the prefabricated components may not be parallel to the ground, which will cause the rotation angles of the multiple prefabricated components to be different, thereby affecting the construction effect;

[0005] (2) However, when the device is in use, the prefabricated component is directly screwed onto the connecting rod. If the prefabricated component is accidentally rotated, it may be unscrewed, thereby affecting the connection effect of the device.

[0006] Therefore, we made improvements to this and proposed a connection node structure for prefabricated components. Utility Model Content

[0007] The purpose of the utility model is to address the problem that a current connection node structure for prefabricated components directly screws multiple sleeves onto multiple connecting rods during use, thereby fixing multiple prefabricated components. However, the sleeves are fixed inside the prefabricated components. When the prefabricated components are screwed, the sides of the prefabricated components may not be parallel to the ground, which will cause the rotation angles of the multiple prefabricated components to be different, thereby affecting the construction effect.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0009] A connection node structure is used for prefabricated components to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The invention comprises a connector body, a connecting mechanism is provided on the outside of the connector body, and a positioning assembly is provided on the outside of the connecting mechanism;

[0012] The connecting mechanism includes an insert rod, a first external thread, a screw barrel and a preformed part. The insert rod is arranged on the outside of the connecting part body, the first external thread is arranged on the outer wall of the insert rod, the screw barrel is rotatably connected to one end of the insert rod, and the preformed part is threadedly connected to the inside of the screw barrel.

[0013] As an optimal technical solution of the present invention, the positioning assembly includes a second external thread and a hexagonal nut. The second external thread is arranged on the outer wall of the insertion rod. The hexagonal nut is threadedly connected to the outside of the second external thread. The thread directions of the second external thread and the first external thread are opposite.

[0014] As a preferred technical solution of the present invention, anti-skid grooves are provided on the outer wall of the screw barrel to improve the anti-skid effect of the screw barrel. The number of the anti-skid grooves is several and distributed in a circular pattern.

[0015] As a preferred technical solution of the present invention, the cross-sectional shape of the connector body is a square, and arc portions are provided at the four corners of the connector body.

[0016] As a preferred technical solution of the present invention, an anti-rust layer is provided on the outer wall of the screw barrel, and the material of the anti-rust layer is iron red phenolic anti-rust paint.

[0017] As a preferred technical solution of the present invention, the number of the insert rod, the first external thread and the screw barrel are four and are evenly distributed on the four surfaces of the connector body, and the number of the prefabricated parts is the same as that of the insert rod, the first external thread and the screw barrel.

[0018] As a preferred technical solution of the present invention, a limiting groove is provided on the side wall of the insertion rod, a limiting ring is welded to the bottom of the screw barrel, and the limiting ring is rotatably connected to the limiting groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the solution of the present utility model:

[0021] 1. The connection mechanism is designed to quickly connect the preform to the connector body. In the connection mechanism, one end of the preform is placed on one end of the barrel, and then the barrel is rotated, causing the end of the preform to move inside the barrel. This avoids the problem of the preform rotating and causing the plane of the preform to be out of parallel with the plane of the connector body when connecting the preform to the connector body.

[0022] 2. The positioning assembly is provided to prevent the insertion rod from accidentally detaching from the connector body. In the positioning assembly, the second external thread is opposite to the thread direction of the first external thread, so that the side wall of the hexagonal nut fits tightly against the side wall of the connector body, preventing the rotation of the insertion rod from causing the insertion rod to directly detach from the connector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a connection node structure for prefabricated components provided by the present invention;

[0024] Figure 2 This is a left view of the connection node structure for prefabricated components provided by the present invention;

[0025] Figure 3 The connection node structure for prefabricated components provided by the utility model Figure 2 A three-dimensional cross-section at AA in the middle;

[0026] Figure 4 This is a schematic structural diagram of the second external thread of the connection node structure for prefabricated components provided by the utility model;

[0027] Figure 5 The connection node structure for prefabricated components provided by the utility model Figure 3 Enlarged view of point A in the middle.

[0028] Indicated in the figure:

[0029] 1. Connector body; 2. Connecting mechanism; 3. Positioning assembly; 4. Anti-slip groove; 5. Arc portion; 6. Limiting groove; 7. Limiting ring; 201. Insert rod; 202. First external thread; 203. Screw barrel; 204. Prefabricated part; 301. Second external thread; 302. Hexagonal nut. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0031] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] like Figure 1-5 As shown, this embodiment proposes a connection node structure for prefabricated components, including a connector body 1, a connection mechanism 2 is provided on the outside of the connector body 1, and a positioning assembly 3 is provided on the outside of the connection mechanism 2;

[0035] The connecting mechanism 2 includes an insert rod 201, a first external thread 202, a screw barrel 203 and a preformed part 204. The insert rod 201 is arranged inside the connecting part body 1, and the first external thread 202 is arranged on the outer wall of the insert rod 201. The screw barrel 203 is rotatably connected to one end of the insert rod 201, and the preformed part 204 is threadedly connected to the inside of the screw barrel 203. When in use, the insert rod 201 and the first external thread 202 are screwed into the inside of the connecting part body 1, and then the preformed part 204 is placed on one end of the screw barrel 203, and then the screw barrel 203 is rotated to pull the preformed part 204 until one end of the preformed part 204 is fitted with one end of the insert rod 201, and then the preformed part 204 is fixed. The preformed part 204 can be fixed without rotating the preformed part 204.

[0036] like Figure 3 and Figure 4 As shown, the positioning assembly 3 includes a second external thread 301 and a hexagonal nut 302. The second external thread 301 is arranged on the outer wall of the insertion rod 201, and the hexagonal nut 302 is threadedly connected to the outside of the second external thread 301. The thread directions of the second external thread 301 and the first external thread 202 are opposite. When the preform 204 is fixed, the hexagonal nut 302 is rotated so that the bottom of the hexagonal nut 302 fits tightly with the top of the connector body 1, avoiding the rotation of the insertion rod 201 causing the insertion rod 201 to directly detach from the connector body 1, thereby improving the stability of the device.

[0037] like Figure 5As shown, anti-skid grooves 4 are provided on the outer wall of the screw barrel 203 to improve the anti-skid effect of the screw barrel 203. There are several anti-skid grooves 4 distributed in a circle. When the screw barrel 203 is rotated, the anti-skid grooves 4 can avoid slipping, thereby improving work efficiency.

[0038] like Figure 1 As shown, the cross-sectional shape of the connector body 1 is a square, and arc portions 5 are provided at the four corners of the connector body 1. When in use, the four arc portions 5 can prevent workers from colliding with the four corners of the connector body 1, thereby preventing injuries, thereby improving the safety of the device.

[0039] like Figure 1 As shown, an anti-rust layer is provided on the outer wall of the screw barrel 203. The material of the anti-rust layer is iron red phenolic anti-rust paint. When in use, the anti-rust layer can prevent the screw barrel 203 from rusting, which may cause the connection effect between the preform 204 and the insertion rod 201 to be weakened.

[0040] like Figure 3 As shown, the number of the insertion rod 201, the first external thread 202 and the screw barrel 203 are all four and are evenly distributed on the four surfaces of the connector body 1. The number of preforms 204 is the same as that of the insertion rod 201, the first external thread 202 and the screw barrel 203. By setting four groups of insertion rods 201, the first external thread 202 and the screw barrel 203, the four surfaces of the connector body 1 can be connected to four preforms 204 respectively. At the same time, one or more groups of insertion rods 201, the first external thread 202 and the screw barrel 203 can also be appropriately reduced according to the number of preforms 204, thereby improving the scope of application of the device.

[0041] like Figure 5 As shown, a limiting groove 6 is provided on the side wall of the insertion rod 201, and a limiting ring 7 is welded to the bottom of the screw barrel 203. The limiting ring 7 is rotatably connected to the limiting groove 6. When in use, the screw barrel 203 will rotate inside the limiting groove 6, thereby preventing the screw barrel 203 from detaching from one end of the insertion rod 201, thereby improving the connection effect between the connector body 1 and the preform 204.

[0042] Specifically, when the connection node structure for prefabricated components is in use: the number of the insertion rod 201, the first external thread 202 and the screw barrel 203 can be appropriately reduced or increased according to the number of prefabricated parts 204, and the increased number is at most four groups, and then the insertion rod 201 and the first external thread 202 are screwed into the interior of the connector body 1, and then the prefabricated part 204 is placed at one end of the screw barrel 203. At this time, the anti-slip groove 4 can improve the anti-slip effect of the screw barrel 203, and then the screw barrel 203 is rotated, and then the prefabricated part 204 can be pulled, and the prefabricated part 204 can be fixed without rotating the prefabricated part 204, and then the hexagonal nut 302 is rotated so that the bottom of the hexagonal nut 302 is tightly fitted with the top of the connector body 1, to avoid rotating the insertion rod 201 and causing the insertion rod 201 to directly detach from the connector body 1, thereby improving the stability of the device.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A connection node structure for prefabricated components, comprising a connector body (1), characterized in that: A connecting mechanism (2) is provided on the outside of the connecting member body (1), and a positioning component (3) is provided on the outside of the connecting mechanism (2); The connecting mechanism (2) comprises an insert rod (201), a first external thread (202), a screw barrel (203) and a preform (204); the insert rod (201) is arranged outside the connecting member body (1); the first external thread (202) is arranged on the outer wall of the insert rod (201); the screw barrel (203) is rotatably connected to one end of the insert rod (201); and the preform (204) is threadedly connected to the inside of the screw barrel (203).

2. A connection node structure for prefabricated components according to claim 1, characterized in that: The positioning assembly (3) comprises a second external thread (301) and a hexagonal nut (302), wherein the second external thread (301) is arranged on the outer wall of the insertion rod (201), and the hexagonal nut (302) is threadedly connected to the outside of the second external thread (301), and the thread directions of the second external thread (301) and the first external thread (202) are opposite.

3. A connection node structure for prefabricated components according to claim 1, characterized in that: Anti-skid grooves (4) for improving the anti-skid effect of the screw barrel (203) are provided on the outer wall of the screw barrel (203), and the number of the anti-skid grooves (4) is several and distributed in a circumferential manner.

4. A connection node structure for prefabricated components according to claim 1, characterized in that: The cross-sectional shape of the connector body (1) is a square, and arc portions (5) are provided at the four corners of the connector body (1).

5. A connection node structure for prefabricated components according to claim 1, characterized in that: An anti-rust layer is provided on the outer wall of the screw barrel (203), and the material of the anti-rust layer is iron red phenolic anti-rust paint.

6. A connection node structure for prefabricated components according to claim 1, characterized in that: The number of the inserting rod (201), the first external thread (202) and the screw barrel (203) is four and is evenly distributed on the four surfaces of the connector body (1). The number of the prefabricated parts (204) is the same as that of the inserting rod (201), the first external thread (202) and the screw barrel (203).

7. A connection node structure for prefabricated components according to claim 1, characterized in that: A limiting groove (6) is provided on the side wall of the insert rod (201), a limiting ring (7) is welded to the bottom of the screw barrel (203), and the limiting ring (7) is rotatably connected to the limiting groove (6).

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