Self-locking connecting fixture for steel bars and shaped steel of reinforced concrete structure

Abstract

This utility model provides a self-locking connection clamp for reinforcing steel bars and structural steel in reinforced concrete structures, including: a main body, an upper positioning seat, and positioning holes. The main body is a columnar structure, and the upper end of the main body is provided with a set of connecting flanges for connecting and fixing with the external main structure. Compared with the prior art, this utility model has the following advantages: by using the side guide column sleeves distributed in six directions on the outside of the main body, multi-directional positioning and fitting are achieved through 60° intervals. The side locking rod and the side groove of the adjacent clamp form a horizontal constraint. During installation, the positioning wing needs to be accurately inserted into the inner positioning groove. The inner groove connecting structure is used to achieve five-way synchronous locking. The anti-slip coating enhances friction and prevents displacement. The lower support head cooperates with the connecting flange to complete the bottom fixing. The lower locking rod passes through the positioning hole to complete the final tightening, forming a three-dimensional stable system with the joint force of weld, thread and mechanical locking.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete self-locking connection clamps, and relates to self-locking connection clamps for reinforcing steel bars and structural steel in reinforced concrete structures. Background Technology

[0002] The main drawback of self-locking concrete connection clamps during concrete pouring is their impact on structural integrity and construction accuracy. This displacement can lead to uneven concrete surfaces, dimensional deviations in components, and in severe cases, a decrease in structural load-bearing capacity, affecting structural safety. These drawbacks are typically related to the clamp's design, material selection, construction operations, and the concrete pouring process. If the clamp itself is not precisely designed or the material strength is insufficient to withstand the lateral pressure generated during concrete pouring, displacement is likely to occur. Conventional solutions include strengthening the clamp design, using higher-strength materials, and strictly adhering to operating procedures during construction. Construction workers closely monitor the clamp's position during pouring and adjust it as necessary. However, these methods increase construction costs and complexity. Using higher-strength materials increases material costs, while strengthening the design may increase the clamp's size, affecting construction efficiency and the reusability of formwork. Therefore, there is an urgent need for self-locking connection clamps for reinforced concrete structures to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-locking connection clamp for reinforcing steel bars and steel profiles in reinforced concrete structures, thereby solving the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a self-locking connection clamp for reinforcing steel bars and steel profiles in a rigid concrete structure, comprising: a main body and a positioning hole. The main body is a columnar structure and is made of stainless steel. The upper end of the main body is provided with a set of connecting flanges II for connecting and fixing with an external main structure. The upper end of the connecting flanges II is provided with a set of upper positioning seats for limiting and positioning with the bottom of the external main structure.

[0005] The upper positioning seat includes a reinforcing bushing and an inner groove. The inner side of the connecting flange is provided with a set of reinforcing bushings for welding and fixing to its interior. The reinforcing bushing is made of stainless steel. The inner side of the reinforcing bushing is provided with a set of inner positioning seats for limiting and supporting the reinforcing bushing. The outer side of the inner positioning seat is welded and fixed to the inner side of the reinforcing bushing, and the inner positioning seat and the reinforcing bushing are an integral structure. The outer side of the main body is provided with several sets of side guide column sleeves for locking and positioning with other external main body structures of the same height. The side guide column sleeves are provided in several sets, and the several sets of side guide column sleeves are arranged in six directions at 60°, 120°, 180°, 240°, 300° and 0° positions.

[0006] In a preferred embodiment, each set of inner positioning grooves has a rectangular cross-section when viewed from above. The five sets of inner positioning grooves are interconnected with the inner embedded grooves. Each set of inner positioning grooves is positioned and fitted with a set of positioning wings. In actual use, the main body is first fixed to the external main structure through connecting flange two. The inner positioning groove of the upper positioning seat is fitted with the bottom of the structure to ensure vertical positioning. The reinforcing bushing is welded to the inner positioning seat to provide support stability. The side guide column sleeves distributed in six directions on the outside of the main body are arranged at 60° intervals to achieve multi-directional positioning and fitting. The side locking rod locks with the side embedded groove of the adjacent clamp to form a horizontal constraint. During installation, the positioning wings need to be accurately inserted into the inner positioning grooves. The connecting structure of the embedded grooves is used to achieve five-directional synchronous locking. The anti-slip coating enhances friction and prevents displacement. The lower support head cooperates with connecting flange one to complete the bottom fixation. The lower locking rod passes through the positioning hole to complete the final tightening, forming a three-dimensional stable system with the joint force of weld, thread and mechanical locking. The clamp achieves high-precision positioning and load transfer of steel bars and structural steel through the rigid connection between the stainless steel body and the welded bushing, combined with the multi-directional self-locking mechanism.

[0007] In a preferred embodiment, the positioning wings are provided in five sets, and a set of lower locking rods is provided on the inner side of the five sets of positioning wings to maintain their connection and locking effect. The upper end of the lower locking rod is an integral structure with the main body.

[0008] In a preferred embodiment, the lower end of the lower locking rod is provided with a set of lower support heads for positioning and connecting with the lower external main structure, and the lower end of the main body is provided with a set of connecting flanges for positioning and fixing with the lower external main structure.

[0009] In a preferred embodiment, the first connecting flange and the second connecting flange are of the same specifications, and the first connecting flange and the second connecting flange are each provided with the same number of positioning holes. The first connecting flange and the second connecting flange are provided with two sets of positioning holes along their longitudinal axis, which are connected by a set of bolts.

[0010] In a preferred embodiment, the inner positioning seat has a set of inner grooves at its center for positioning and fitting with the lower support head of the outer main structure. Five sets of inner positioning grooves are evenly distributed on the outer side of the inner grooves for positioning and supporting the lower support head of the outer main structure.

[0011] In a preferred embodiment, each set of side guide post sleeves has a set of side grooves for engaging and fixing with the side locking rods. The internal structure of the front cross-section of the side groove is the same as the internal structure of the top cross-section of the upper positioning seat. Each set of side guide post sleeves has a set of side locking rods for positioning and connecting with the external main structure. Each set of side locking rods has five sets of positioning inserts on its outer side. In actual use, the main body is first aligned with the upper and lower external main structures through connecting flange one and connecting flange two. Initial fixing is achieved by bolts passing through the positioning holes of the same specification inside the flanges. The five sets of positioning wings are then inserted synchronously. Radial positioning is achieved by inserting the inner positioning groove, while the lower support head is embedded in the inner groove to achieve center alignment. The lower locking rod and the main body are integrated to ensure the locking stability of the positioning wing. Its lower end forms a load-bearing node with the lower structure through the lower support head. When connecting laterally, the side locking rods of the adjacent clamps are inserted along the side guide column sleeve. The five sets of positioning inserts and the side grooves are precisely engaged to form circumferential constraints. Through the four mechanisms of flange bolt connection, positioning wing engagement, lower locking rod pressure bearing and side locking rod interlocking, the rapid positioning and rigid connection of the reinforcing bars and structural steel are achieved. All connection surfaces adopt the mechanical interlocking principle to ensure that no displacement occurs during the concrete pouring process.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by using the side guide column sleeves distributed in six directions on the outer side of the main body, multi-directional positioning and fitting are achieved through 60° intervals. The side locking rod and the side groove locking of the adjacent clamp form a horizontal constraint. During installation, the positioning wing needs to be accurately inserted into the inner positioning groove. The inner groove connecting structure is used to achieve five-way synchronous locking. The anti-slip coating enhances friction and prevents displacement. The lower support head and the connecting flange cooperate to complete the bottom fixation. The lower locking rod passes through the positioning hole to complete the final tightening, forming a three-dimensional stable system with the joint force of weld, thread and mechanical locking.

[0013] The steel bars and structural steel are quickly positioned and rigidly connected through a four-fold mechanism of flange bolt connection, positioning wing fitting, lower locking rod bearing and side locking rod interlocking. All connection surfaces adopt the mechanical interlocking principle to ensure that no displacement occurs during concrete pouring. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view of the structure of the self-locking connection clamps for reinforced concrete structures and steel profiles of this utility model when two sets of vertically arranged and combined.

[0016] Figure 2 This is a top view of the front structure of the self-locking connection clamp for reinforcing steel bars and profiles in reinforced concrete structures when the main body and the lower locking rod are separated.

[0017] Figure 3 This is a right-angled upward view of the self-locking connection clamp between reinforcing steel bars and steel profiles in the rigid concrete structure of this utility model.

[0018] Figure 4 This is a top view of the internal structure of the upper positioning seat in the self-locking connection clamp for reinforcing steel bars and steel profiles of the rigid concrete structure of this utility model.

[0019] In the diagram: 100-Main body, 110-Upper positioning seat, 120-Side guide column sleeve, 130-Side groove, 140-Side locking rod, 150-Connecting flange one, 160-Lower locking rod, 170-Positioning wing, 180-Connecting flange two, 190-Lower support head, 200-Positioning hole;

[0020] 11a-Reinforced bushing, 11b-Inner positioning seat, 11c-Anti-slip coating, 11d-Inner positioning groove, 11e-Inner groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 As the first embodiment of this utility model:

[0023] A self-locking connection clamp for reinforcing steel bars and structural steel in a reinforced concrete structure includes: a main body 100, an upper positioning seat 110, and a positioning hole 200. The main body 100 is a columnar structure and is made of stainless steel. The upper end of the main body 100 is provided with a set of connecting flanges 180 for connecting and fixing with the external main body 100 structure. The upper end of the connecting flanges 180 is provided with a set of upper positioning seats 110 for limiting and positioning with the bottom of the external main body 100 structure.

[0024] The upper positioning seat 110 includes a reinforcing bushing 11a and an inner groove 11e. A set of reinforcing bushings 11a for welding and fixing to the inner side of the connecting flange 180 is provided. The reinforcing bushing 11a is made of stainless steel. A set of inner positioning seats 11b for limiting and supporting the reinforcing bushing 11a is provided inside the reinforcing bushing 11a. The outer side of the inner positioning seat 11b is welded and fixed to the inner side of the reinforcing bushing 11a. The inner positioning seat 11b and the reinforcing bushing 11a are an integral structure. A number of side guide column sleeves 120 for locking and positioning with other external main body 100 structures of the same height are provided on the outer side of the main body 100. A number of side guide column sleeves 120 are provided, and the number of side guide column sleeves 120 are arranged in six directions at 60°, 120°, 180°, 240°, 300° and 0° positions.

[0025] Each set of inner positioning grooves 11d has a rectangular cross-section when viewed from above. The five sets of inner positioning grooves 11d are interconnected with the inner grooves 11e. Each set of inner positioning grooves 11d is mutually positioned and fitted with a set of positioning wings 170. In actual use, the main body 100 is first fixed to the external main body 100 structure via connecting flange 180. The inner positioning groove 11d of the upper positioning seat 110 fits into the bottom of the structure to ensure vertical positioning. The reinforcing bushing 11a is welded to the inner positioning seat 11b to provide support and stability. The six-directionally distributed side guide column sleeves 120 on the outside of the main body 100 are arranged at 60° intervals to achieve multi-directional positioning and fitting. The side locking rod... The 140 and the side groove 130 of the adjacent clamp lock together to form a horizontal constraint. During installation, the positioning wing 170 needs to be accurately inserted into the inner positioning groove 11d. The five-way synchronous locking is achieved by using the connecting structure of the inner groove 11e. The anti-slip coating 11c enhances friction and prevents displacement. The lower support head 190 cooperates with the connecting flange 150 to complete the bottom fixation. The lower locking rod 160 passes through the positioning hole 200 to complete the final tightening, forming a three-dimensional stable system with the joint force of the weld, thread and mechanical locking. The clamp achieves high-precision positioning and load transfer of the steel bars and structural steel through the rigid connection between the stainless steel body 100 and the welding bushing, combined with the multi-directional self-locking mechanism.

[0026] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further,

[0027] The positioning wings 170 are provided in five sets. The inner side of each of the five sets of positioning wings 170 is provided with a lower locking rod 160 for maintaining its connection and locking effect. The upper end of the lower locking rod 160 is an integral structure with the main body 100.

[0028] The lower end of the lower locking rod 160 is provided with a set of lower support heads 190 for positioning and connecting with the lower external body 100 structure, and the lower end of the body 100 is provided with a set of connecting flanges 150 for positioning and fixing with the lower external body 100 structure.

[0029] The connecting flange 150 and the connecting flange 280 have the same specifications, and both the connecting flange 150 and the connecting flange 280 have the same number of positioning holes 200 inside. The connecting flange 150 and the connecting flange 280 have two sets of positioning holes 200 on their longitudinal axis, which are connected by a set of bolts.

[0030] The inner positioning seat 11b has a set of inner grooves 11e at its center for positioning and fitting with the lower support head 190 at the lower end of the outer main body 100 structure. Five sets of inner positioning grooves 11d are evenly distributed on the outer side of the inner grooves 11e for positioning and supporting the lower support head 190 at the lower end of the outer main body 100 structure.

[0031] Each set of side guide post sleeves 120 has a set of side grooves 130 inside for engaging and fixing with the side locking rods 140. The internal structure of the front cross-section of the side grooves 130 is the same as the internal structure of the top view cross-section of the upper positioning seat 110. Each set of side guide post sleeves 120 has a set of side locking rods 140 inside for positioning and connecting with the external main body 100 structure. Each set of side locking rods 140 has five sets of positioning inserts on the outside. In actual use, the main body 100 is first aligned with the upper and lower external main body 100 structures through the connecting flange 150 and connecting flange 280. Initial fixing is achieved by bolts passing through the positioning holes 200 of the same specification inside the flanges. The five sets of positioning wings 170 are simultaneously inserted into the inner positioning grooves 140. Radial positioning is completed in step 1d. At the same time, the lower support head 190 is embedded in the inner groove 11e to achieve center alignment. The lower locking rod 160 and the main body 100 are integrated to ensure the locking stability of the positioning wing 170. Its lower end forms a load-bearing node with the lower structure through the lower support head 190. When connecting laterally, the side locking rods 140 of the adjacent clamps are inserted along the side guide column sleeve 120. The five sets of positioning inserts and the side grooves 130 are precisely engaged to form circumferential constraints. Through the four-fold mechanism of flange bolt connection, positioning wing 170 engagement, lower locking rod 160 pressure bearing and side locking rod 140 interlocking, the rapid positioning and rigid connection of the reinforcing bar and the steel section are achieved. All connection surfaces adopt the mechanical interlocking principle to ensure that no displacement occurs during the concrete pouring process.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking connecting fixture for reinforcing steel and shaped steel of a reinforced concrete structure, comprising: The main body (100), the upper positioning seat (110), and the positioning hole (200) are characterized in that: the main body (100) is a columnar structure and is made of stainless steel. The upper end of the main body (100) is provided with a set of connecting flanges (180) for connecting and fixing with the external main body (100) structure. The upper end of the connecting flanges (180) is provided with a set of upper positioning seats (110) for limiting and positioning with the bottom of the external main body (100) structure. The upper positioning seat (110) includes a reinforcing bushing (11a) and an inner groove (11e). The inner side of the connecting flange (180) is provided with a set of reinforcing bushings (11a) for welding and fixing to its interior. The reinforcing bushings (11a) are made of stainless steel. The inner side of the reinforcing bushings (11a) is provided with a set of inner positioning seats (11b) for limiting and supporting the reinforcing bushings (11a). The outer side of the inner positioning seats (11b) is connected to the reinforcing bushings (11a). 1a) The inner side is welded and fixed, and the inner positioning seat (11b) and the reinforcing bushing (11a) are an integral structure. The outer side of the main body (100) is provided with several sets of side guide column sleeves (120) for locking and positioning with other external main body (100) structures of the same height. The side guide column sleeves (120) are provided with several sets, and the several sets of side guide column sleeves (120) are set in six directions at 60°, 120°, 180°, 240°, 300° and 0° positions.

2. The self-locking connecting clamp for steel bars and shaped steel of the reinforced concrete structure according to claim 1, characterized in that: The inner positioning seat (11b) has a set of inner grooves (11e) at its center for positioning and fitting with the lower support head (190) at the lower end of the outer main body (100) structure. Five sets of inner positioning grooves (11d) are evenly distributed on the outer side of the inner grooves (11e) for positioning and supporting the lower support head (190) at the lower end of the outer main body (100) structure. Each set of inner positioning grooves (11d) has a rectangular cross-section when viewed from above. The five sets of inner positioning grooves (11d) are interconnected with the inner grooves (11e). The interior of each set of inner positioning grooves (11d) is mutually positioned and fitted with a set of positioning wings (170).

3. The self-locking connection clamp for reinforcing steel bars and structural steel in a reinforced concrete structure according to claim 2, characterized in that: The positioning wing (170) is provided in five sets, and a set of lower locking rods (160) is provided on the inner side of the five sets of positioning wings (170) to maintain its connection and locking effect. The upper end of the lower locking rod (160) is an integral structure with the main body (100).

4. The self-locking connection clamp for reinforcing steel bars and structural steel in reinforced concrete structures according to claim 3, characterized in that: The lower end of the lower locking rod (160) is provided with a set of lower support heads (190) for positioning and connecting with the lower external body (100) structure, and the lower end of the body (100) is provided with a set of connecting flanges (150) for positioning and fixing with the lower external body (100) structure.

5. The self-locking connection clamp for reinforcing steel bars and structural steel in reinforced concrete structures according to claim 4, characterized in that: The first connecting flange (150) and the second connecting flange (180) have the same specifications, and the first connecting flange (150) and the second connecting flange (180) are provided with the same number of positioning holes (200) respectively. The first connecting flange (150) and the second connecting flange (180) are provided with two sets of positioning holes (200) along the longitudinal axis and are connected by a set of bolts.

6. The self-locking connection clamp for reinforcing steel bars and structural steel in reinforced concrete structures according to claim 1, characterized in that: Each set of side guide post sleeves (120) has a set of side grooves (130) for engaging and fixing with the side locking rods (140). The internal structure of the front cross section of the side grooves (130) is the same as the internal structure of the top cross section of the upper positioning seat (110). Each set of side guide post sleeves (120) has a set of side locking rods (140) for positioning and connecting with the external main body (100) structure. Each set of side locking rods (140) has five sets of positioning inserts on the outside.

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