A quick connector for reinforcing bars of post-cast strip of aqueduct with adjusting function

Abstract

The utility model relates to a kind of aqueduct post-cast strip reinforcing steel bar fast connector with adjusting function, including first sleeve, second sleeve and universal hinge joint, one end of first sleeve is nested connection one end of universal hinge joint, the other end of universal hinge joint is nested hinged one end of second sleeve, the other end inner wall of first sleeve is provided with first thread for screwing first reinforcing steel bar, the other end inner wall of second sleeve is provided with second thread for screwing second reinforcing steel bar, first thread and second thread are reverse, since universal hinge joint has angle adjusting ability, can automatically adapt the deviation of reinforcing steel bar axial, effectively solve the problem of reinforcing steel bar installation difficulty in slope section, staggered area.

Description

Technical Field

[0001] This utility model belongs to the technical field of post-cast strip rebar butt connection, specifically relating to a quick connector for post-cast strip rebar in aqueduct with adjustment function. Background Technology

[0002] In large-scale water conservancy, transportation, and municipal engineering projects, aqueduct structures are widely used in water conveyance systems. Their structural integrity and construction quality directly affect the durability and safety of the project. To effectively control the risks of concrete shrinkage and cracking, post-cast strip technology is commonly used, especially in aqueduct slope sections or structural changes. In actual construction, the reinforcing bars on both sides of the post-cast strip need to be pre-installed and connected later. Traditional rebar connection methods mainly include lap splicing, welding, and ordinary sleeve splicing.

[0003] However, these traditional connection methods have the following drawbacks: tying connections cannot provide reliable mechanical properties; welding connections have high requirements for the construction environment and worker skills, are complex in process, and pose safety hazards; while ordinary sleeve connections have high requirements for the axial alignment of the reinforcing bars, and are difficult to connect when space is limited or the installation deviation of the reinforcing bars is large, and are prone to problems such as inconvenient installation, difficulty in docking, and weak connection, especially in inclined sections of the trench or areas with height differences. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a quick connector for the reinforcing bars in the post-cast strip of an aqueduct with universal adjustment function. By adjusting the axial angle deviation of a pair of butt-joint reinforcing bars through a universal hinge joint, it achieves rapid docking and angle compensation during the connection process, thereby solving the problems of difficult alignment and poor connection accuracy in existing connection methods.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick connector for the reinforcing bars of a post-cast strip in an aqueduct with adjustable function includes a first sleeve, a second sleeve, and a universal joint. One end of the first sleeve is nested and connected to one end of the universal joint, and one end of the second sleeve is nested and hinged to the other end of the universal joint. The inner wall of the other end of the first sleeve is provided with a first thread for screwing a first reinforcing bar, and the inner wall of the other end of the second sleeve is provided with a second thread for screwing a second reinforcing bar. The first thread and the second thread are opposite to each other.

[0007] Furthermore, the universal joint includes a connecting rod and a ball head. One end of the connecting rod is connected to the ball head, and one end of the second sleeve has a spherical groove on its inner circumference that matches the ball head. The ball head is hinged in the spherical groove, and the other end of the connecting rod is nested in the first sleeve.

[0008] Furthermore, the connecting rod is a straight rod, and the first sleeve is interference-fitted.

[0009] Furthermore, the connecting rod is a threaded rod and is threadedly connected to the first sleeve.

[0010] Furthermore, there is a gap between the opposite end faces of the first sleeve and the second sleeve.

[0011] Furthermore, both the first sleeve and the second sleeve have prismatic surfaces on their outer periphery.

[0012] Furthermore, both the first sleeve and the second sleeve are fitted with threaded rings on their outer periphery.

[0013] Furthermore, both the first sleeve and the second sleeve are provided with a stop ring and a sealing ring at their ends. One end of the stop ring is used to screw onto the outer circumference of the first and second reinforcing bars, and the other end of the stop ring is sleeved on the outer circumference of the first sleeve and the second sleeve. The sealing ring is sleeved between the inner circumference of the other end of the stop ring and the outer circumference of the first reinforcing bar, and between the inner circumference of the other end of the stop ring and the outer circumference of the second reinforcing bar.

[0014] This utility model has the following advantages due to the adoption of the above technical solution:

[0015] This utility model provides a quick connector for the reinforcing bars of aqueduct post-cast strip with adjustable function. The first and second reinforcing bars are connected to the outer ends of the first and second sleeves respectively using forward and reverse threads. The inner ends are connected by universal joints to achieve a certain angle adjustment. This allows for the simultaneous tightening of the first and second reinforcing bars at both ends, enabling rapid connection. Because the universal joint has angle adjustment capabilities, it can automatically adapt to axial deviations in the first and second reinforcing bars, effectively solving the problem of difficult reinforcement installation in sloping sections and staggered areas. This utility model is suitable for various aqueduct post-cast strip scenarios, especially in construction sites with limited space and complex reinforcement layouts. It can significantly improve the efficiency, quality, and adaptability of post-cast strip reinforcement construction, and has good prospects for widespread application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure of the quick connector for reinforcing bars according to this utility model.

[0017] Figure 2 This is a schematic diagram of the universal joint of this utility model.

[0018] The attached diagram is labeled as follows: 1-First reinforcing bar, 2-First sleeve, 3-Universal hinge joint, 4-Second sleeve, 5-Stop ring, 6-Second reinforcing bar, 7-Sealing ring, 8-Threaded ring, 031-Connecting rod, 032-Ball head. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are only for illustrating the essential spirit of the technical solution of the present invention.

[0020] like Figure 1 , Figure 2 As shown. This utility model provides a quick connector for the reinforcing bars of the post-cast strip of an aqueduct with an adjustable function, including a first sleeve 2, a second sleeve 4, and a universal joint 3. One end of the first sleeve 2 is nested and connected to one end of the universal joint 3, and the other end of the universal joint 3 is nested and hinged to one end of the second sleeve 4. The inner wall of the other end of the first sleeve 2 is provided with a first thread for screwing the first reinforcing bar 1, and the inner wall of the other end of the second sleeve 4 is provided with a second thread for screwing the second reinforcing bar 6. The first thread and the second thread are opposite to each other.

[0021] Specifically, the first sleeve 2 is a through structure, and the middle of the second sleeve 4 is closed. Threads (left-hand and right-hand threads are located on the outer periphery of one end of the first and second reinforcing bars 1 and 6 respectively) are pre-machined at the steel plant or on site at the connection end of the post-cast strip. The first thread is a forward thread, and the second thread is a reverse thread.

[0022] Furthermore, the universal joint 3 includes a connecting rod 031 and a ball head 032. One end of the connecting rod 031 is connected to the ball head 032. One end of the second sleeve 4 has a spherical groove on its inner circumference that matches the ball head 032. The ball head 032 is hinged within the spherical groove. The other end of the connecting rod 031 is nested within the first sleeve 2. The outer diameter of the ball head 032 is larger than the outer diameter of the connecting rod 031. The ball head 032, hinged within the spherical groove, allows for ±5° angle adjustment to automatically adapt to the axial deviation of the first reinforcing bar 1 and the second reinforcing bar 6. The connecting rod 031 is a straight rod, the ball head 032 is a hemisphere, and the spherical groove is a hemispherical groove that matches the hemisphere. The hemisphere can rotate around the circumference of the hemispherical groove to adjust the angle between the two.

[0023] Furthermore, the connecting rod 031 is a threaded rod, which is screwed into the first sleeve 2, and the two are connected by a threaded fit. The outer circumference of the connecting rod 031 is provided with an external thread to form a threaded rod, and the inner wall of the first sleeve 2 is provided with an internal thread, and the internal thread and the external thread are connected.

[0024] As a preferred option, the connecting rod 031 is a straight rod, which is nested inside the first sleeve 2, and the two are coaxially interference-fitted to form a tight fit connection.

[0025] Furthermore, in order to facilitate the angle adjustment of the ball head and the spherical groove, there is a gap between the opposite end faces of the first sleeve 2 and the second sleeve 4. The gap facilitates the redundancy of the axial deviation of the first reinforcing bar 1 and the second reinforcing bar 6.

[0026] Furthermore, both the first sleeve 2 and the second sleeve 4 are fitted with a threaded ring 8 on their outer circumference. The threaded ring 8 is a hexagonal nut ring, which facilitates the rotation of the first sleeve 2 or the second sleeve 4 by using a wrench.

[0027] As a preferred embodiment, both the first sleeve 2 and the second sleeve 4 have prismatic surfaces on their outer peripheries. The prismatic surfaces are hexagonal prisms, which facilitates the rotation of the first sleeve 2 or the second sleeve 4 using a wrench.

[0028] Furthermore, both the first sleeve 2 and the second sleeve 4 are provided with a stop ring 5 and a sealing ring 7. One end of the stop ring 5 is used to be screwed onto the outer periphery of the first reinforcing bar 1 and the second reinforcing bar 6, and the other end of the stop ring 5 is sleeved on the outer periphery of the first sleeve 2 and the second sleeve 4. The sealing ring 7 is sleeved between the inner periphery of the other end of the stop ring 5 and the outer periphery of the first reinforcing bar 1, and between the inner periphery of the other end of the stop ring 5 and the outer periphery of the second reinforcing bar 6.

[0029] Specifically, each stop ring 5 is a stepped ring sleeve. One end of the stop ring 5 has an internal thread for threading the first reinforcing bar 1 or the second reinforcing bar 6. The other end of the stop ring 5 has a sealing ring 7 nested within its inner wall. After the first reinforcing bar 1 and the second reinforcing bar 6 are connected, the stop ring 5 is rotated so that its other end is fitted onto the outer circumference of the ends of the first sleeve 2 and the second sleeve 4. At this time, the sealing ring 7 abuts against the connection end of the first sleeve 2 and the first reinforcing bar 1, and the connection end of the second sleeve 4 and the second reinforcing bar 6, achieving a seal. By setting the stop ring 5 and the sealing ring 7, it is possible to prevent mortar or grout from entering the first sleeve 2 and the second sleeve 4, thus avoiding interference with subsequent grouting or reinforcing bar anchoring.

[0030] When this utility model is used, the outer periphery of the ends of the first steel bar 1 and the second steel bar at both ends of the post-cast strip is pre-machined with external threads, and then the inner walls of one end of the first sleeve 2 and the second sleeve 4 are respectively threaded. By rotating the screw ring 8, the first steel bar 1 and the second steel bar 6 at both ends can be automatically and synchronously screwed in and tightened. Since there is a universal joint 3 in the middle, it can adapt to the angular deviation of the first steel bar 1 and the second steel bar 6.

Claims

1. A quick connector for the reinforcing bars of a post-cast strip in an aqueduct with adjustable function, characterized in that, It includes a first sleeve, a second sleeve, and a universal joint. One end of the first sleeve is nested and connected to one end of the universal joint. One end of the second sleeve is nested and hinged to the other end of the universal joint. The inner wall of the other end of the first sleeve is provided with a first thread for screwing a first reinforcing bar. The inner wall of the other end of the second sleeve is provided with a second thread for screwing a second reinforcing bar. The first thread and the second thread are opposite to each other.

2. The quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 1, characterized in that, The universal joint includes a connecting rod and a ball head. One end of the connecting rod is connected to the ball head. One end of the second sleeve has a spherical groove on its inner circumference that matches the ball head. The ball head is hinged in the spherical groove. The other end of the connecting rod is nested in the first sleeve.

3. A quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 2, characterized in that, The connecting rod is a straight rod and is interference-fitted with the first sleeve.

4. A quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 2, characterized in that, The connecting rod is a threaded rod and is threadedly connected to the first sleeve.

5. A quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 3 or 4, characterized in that, There is a gap between the opposite end faces of the first sleeve and the second sleeve.

6. A quick connector for the reinforcing bars of a post-cast strip in an aqueduct with an adjustable function, as described in claim 5, is characterized in that... Both the first sleeve and the second sleeve have prismatic surfaces on their outer periphery.

7. A quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 5, characterized in that, Both the first sleeve and the second sleeve are fitted with threaded rings on their outer circumferences.

8. A quick connector for the reinforcing bars of the aqueduct post-cast strip with adjustment function according to claim 7, characterized in that, Both the first sleeve and the second sleeve are provided with a stop ring and a sealing ring at their ends. One end of the stop ring is used to screw onto the outer circumference of the first and second reinforcing bars, and the other end of the stop ring is sleeved on the outer circumference of the first sleeve and the second sleeve. The sealing ring is sleeved between the inner circumference of the other end of the stop ring and the outer circumference of the first reinforcing bar, and between the inner circumference of the other end of the stop ring and the outer circumference of the second reinforcing bar.

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