Steel bar connecting assembly for highway bridge construction

Abstract

The utility model provides a reinforcing steel bar connecting component for highway bridge construction, which comprises a sleeve body, the sleeve body is cylindrical in appearance, a threaded hole with a certain length is formed in the center of the sleeve body along the axis, two ends of the threaded hole are communicated with a conical cavity, a through hole is formed in the outer side of the conical cavity along the axis, and the through hole is communicated with the threaded hole. A conical locking block matched with the conical cavity is arranged in the conical cavity, a main body of the conical locking block is in a circular truncated cone shape, the conical locking block is hollow, a through hole for a reinforcing steel bar to pass through is formed in the conical locking block in the vertical direction in a penetrating mode, four sets of holes are evenly distributed in the conical surface of the conical locking block in the circumferential direction, and locking balls are correspondingly arranged at the holes. The locking ball is an elastic ball. Compared with a traditional steel bar sleeve threaded connection mode, the conical cavity, the conical locking block and the like are additionally arranged, the rubber ball is pressed on the steel bar by screwing in the bolt, secondary locking is achieved, looseness is avoided, and the structural strength after later construction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar overlap for bridge construction, in particular to a steel bar connection component for highway bridge construction. Background Art

[0002] Existing steel bars used in highway bridge construction are either connected by welding or by connecting sleeves. Welding is inefficient and requires high standards for welders; connecting with steel bar connecting sleeves will weaken the strength of the connection due to vibration and loosening, posing hidden dangers.

[0003] 1. Comparative document CN219671875U discloses a steel bar connection assembly for highway bridge construction, and the protected claim is: "The steel bar connection assembly for highway bridge construction includes: a support plate, the first connection head is fixedly connected to the top of the support plate in the middle position, the top of the first connection head is threadedly connected to a fixing bolt, the front of the first connection head is threadedly connected to a bolt, the hypotenuse of the first connection head is provided with a slot, and the hypotenuse of the first connection head is provided with a second connection head through a plug. The steel bar connection assembly for highway bridge construction provided by the utility model is fixed by providing a supporting force through a support spring, and the first movable ring and the second movable ring are fixed by a fixing block and a bolt. The first steel bar and the second steel bar can be quickly and conveniently connected together by the device, and the supporting force of the connection is increased by the structure on the support plate, which can avoid the displacement of the connection caused by fine vibration or tension, thereby increasing the safety hazard of the later use of the highway bridge." Although the utility model can realize the reliable connection of the first steel bar and the second steel bar, it is necessary to open installation holes on the first steel bar and the second steel bar, which will reduce the strength of the steel bar itself and also hide safety hazards.

[0004] Therefore, there is an urgent need for a steel bar connection assembly for highway bridge construction to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a steel bar connection assembly for highway bridge construction to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a steel bar connection component for highway bridge construction, comprising a sleeve body, the sleeve body is cylindrical in shape, a threaded hole of a certain length is opened at the center of the sleeve body along the axis, both ends of the threaded hole are connected with a conical cavity, a first through hole is provided along the axis on the outer side of the conical cavity, a conical locking block matching with the conical cavity is provided in the conical cavity, the main body of the conical locking block is truncated cone-shaped, the conical locking block is hollow and vertically penetrated by a second through hole for the steel bar to pass through, four groups of holes are evenly distributed circumferentially on the conical surface of the conical locking block, locking balls are provided corresponding to the holes, and the locking balls are elastic balls.

[0007] Preferably, guide blocks are provided on the left and right sides of the conical locking block, guide grooves are provided on the left and right sides of the conical cavity, the guide blocks are arranged on the guide grooves, a spring is installed in the guide groove, and one end of the spring is connected to the conical locking block.

[0008] Preferably, a plurality of bolt holes communicating with the conical cavity are provided at both ends of the sleeve body, corresponding bolts are provided in the bolt holes, and an annular limiting protrusion is provided on the inner side of the through hole in the inner cavity of the conical locking block close to the guide block.

[0009] The utility model has the following beneficial effects:

[0010] Compared with the traditional steel bar sleeve threaded connection method, the utility model adds a tapered cavity, a tapered locking block, etc., and uses a bolt to screw in to press the rubber ball against the steel bar to achieve secondary locking, avoid loosening, and ensure the structural strength after later construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] See also Figure 1 to Figure 2A steel bar connection assembly for highway bridge construction includes a sleeve body 1, the sleeve body 1 is cylindrical in shape, a threaded hole 2 of a certain length is opened in the center of the sleeve body 1 along the axis, the two ends of the threaded hole 2 are connected to a conical cavity 3, a first through hole 3.1 is arranged on the outer side of the conical cavity 3 along the axis, a conical locking block 4 matching it is arranged in the conical cavity 3, the conical locking block 4 is truncated, the conical locking block 4 is hollow and vertically penetrated with a second through hole 4.1 for the steel bar 7 to pass through, four groups of holes 4.2 are evenly arranged on the conical surface of the conical locking block 4, and locking balls 5 are arranged at the holes 4.2, and the locking balls 5 are elastic balls. Secondary locking can be achieved by compacting the locking balls to prevent the traditional sleeve body from loosening due to vibration.

[0015] Preferably, guide blocks 10 are provided on the left and right sides of the conical locking block 4, guide grooves 8 are provided on the left and right sides of the conical cavity 3, the guide blocks 10 are provided on the guide grooves 8, a spring 9 is installed in the guide grooves 8, and one end of the spring 9 is connected to the conical locking block 4. After the bolt 6 is screwed in, the spring 9 is squeezed, and the elastic force of the spring 9 can increase the friction between the end face of the conical locking block 4 and the bolt 6, thereby preventing the bolt 6 from loosening.

[0016] Preferably, a plurality of bolt holes 1.1 communicating with the conical cavity 3 are provided at both ends of the sleeve body 1, bolts 6 adapted thereto are provided in the bolt holes 1.1, and an annular limiting protrusion 11 is provided on the inner side of the through hole in the inner cavity of the conical locking block 4 close to the guide block 10. The limiting protrusion 11 can prevent the locking ball 5 from being completely retracted into the conical locking block 4 and unable to be reset later.

[0017] The working principle of this embodiment is as follows:

[0018] First, the steel bars 7 at both ends are threadedly connected to the threaded holes 2 in the sleeve body 1 to achieve a preliminary connection; then the bolt 6 is screwed in, and the bolt 6 pushes the conical locking block 4 so that the conical surface of the conical locking block 4 is close to the conical surface of the conical cavity 3, and the locking ball 5 is gradually retracted into the conical locking block 4 and pressed against the steel bar 7.

[0019] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A steel bar connection assembly for highway bridge construction, comprising a sleeve body (1), characterized in that: The sleeve body (1) is cylindrical in shape. A threaded hole (2) of a certain length is opened at the center of the sleeve body (1) along the axis. Both ends of the threaded hole (2) are connected to the conical cavity (3). A first through hole (3.1) is provided on the outer side of the conical cavity (3) along the axis. A conical locking block (4) matching the conical cavity (3) is provided in the conical cavity (3). The conical locking block (4) is truncated cone-shaped. The conical locking block (4) is hollow and vertically penetrated by a second through hole (4.1) for the steel bar (7) to pass through. Four groups of holes (4.2) are evenly arranged circumferentially on the conical surface of the conical locking block (4). Locking balls (5) are provided at the holes (4.2) corresponding to the holes. The locking balls (5) are elastic balls.

2. A steel bar connection assembly for highway bridge construction according to claim 1, characterized in that: The conical locking block (4) is provided with guide blocks (10) on the left and right sides, the conical cavity (3) is provided with guide grooves (8) on the left and right sides, the guide blocks (10) are arranged on the guide grooves (8), a spring (9) is installed in the guide groove (8), and one end of the spring (9) is connected to the conical locking block (4).

3. A steel bar connection assembly for highway bridge construction according to claim 1, characterized in that: A plurality of bolt holes (1.1) communicating with the tapered cavity (3) are provided at both ends of the sleeve body (1), bolts (6) adapted thereto are provided in the bolt holes (1.1), and an annular limiting protrusion (11) is provided on the inner side of a through hole in the inner cavity of the tapered locking block (4) close to the guide block (10).

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