Concrete beam steel bar anchoring device

Abstract

The utility model discloses a concrete beam steel bar anchoring device, and relates to the technical field of steel bar anchoring. The steel bar anchoring device comprises an anchoring box, steel bar anchoring seats are symmetrically and movably arranged in the anchoring box, abutting parts are arranged in the middles of the steel bar anchoring seats, arc-shaped grooves are symmetrically formed in the positions, on the two sides of the abutting parts, of the steel bar anchoring seats, anchoring clamping teeth are arranged on the inner side walls of the arc-shaped grooves, and a screw rod is rotationally connected to the interior of the anchoring box through a bearing. The two ends of the screw are opposite in thread turning direction and penetrate through the abutting parts in the middles of the two steel bar anchoring bases in a threaded mode correspondingly. The two steel bar anchoring seats can be driven to be close to each other synchronously by utilizing the inner hexagonal wrench and rotating the screw rod, concrete beam steel bars placed between the steel bar anchoring seats are pressed and anchored, the operation is convenient and fast, the end heads of the concrete steel bars can be prevented from easily withdrawing from the anchoring box through the annular inner teeth by arranging the steel bar anchors, and the construction efficiency is improved. Therefore, the anchoring effect on the concrete beam reinforcing steel bars can be further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar anchoring, in particular to a concrete beam steel bar anchoring device. Background Art

[0002] The steel bars in reinforced concrete structures can bear stress mainly by relying on the bonding and anchoring effect between the steel bars and concrete. Therefore, the anchoring of the steel bars is the basis for the stress of the concrete structure. If the anchoring fails, the structure will lose its bearing capacity and thus cause structural damage. The existing steel bar anchoring device is a circular anchor with an internal thread. The steel bar is processed with an external thread to match it, so that the steel bar and the circular anchor are threadedly connected. The steel bar for the above connection method must be processed in advance to prefabricate the external thread head, which increases the steel bar prefabrication process and processing costs. The processed steel bar thread head should also be properly kept. Once damaged, it cannot be connected and installed, making production and management work cumbersome. After searching, the patent with application number 202220993572.4 discloses a steel bar anchoring device for concrete construction, including a first anchor plate and a second anchor plate, the front and rear sides of the first anchor plate are fixedly connected with a first connecting plate, the front and rear sides of the second anchor plate are fixedly connected with a second connecting plate, the first connecting plate and the second connecting plate are fixedly connected by bolts, a limiting block is fixedly connected to the middle part of the side where the first anchor plate is close to the second anchor plate, and the first anchor plate and the second anchor plate are respectively fixedly connected with a first fixed block and a second fixed block on the side where the first anchor plate is close to the second anchor plate.

[0003] However, during actual use, the applicant found that when anchoring the steel bars, the steel bars were anchored by friction between the teeth provided on the inner wall of the anchor plate and the outer wall of the steel bars. When splicing and fixing the first anchor plate and the second anchor plate, they needed to be connected and fixed by bolts and nuts, which was not convenient to operate. In view of this, we proposed a concrete beam steel bar anchoring device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a concrete beam steel bar anchoring device, comprising an anchor box, wherein a steel bar anchoring seat is symmetrically and movably arranged inside the anchor box, an abutment portion is arranged in the middle of the steel bar anchoring seat, arc-shaped grooves are symmetrically opened on the steel bar anchoring seats on both sides of the abutment portion, and anchoring teeth are arranged on the inner side walls of the arc-shaped grooves. A screw is rotatably connected to the inside of the anchor box through a bearing, the threads at both ends of the screw have opposite rotation directions, and the two ends of the screw are respectively threaded through the abutment portions in the middle of the two steel bar anchoring seats, and an adjusting head is fixedly arranged at one end of the screw.

[0006] Preferably, steel bar anchoring rings are symmetrically fixedly connected to the inner walls at both ends of the anchoring box.

[0007] Preferably, an annular inner tooth is fixedly provided on the inner side wall of the steel bar anchoring ring, and the tooth tip of the annular inner tooth is arranged toward the inside of the anchoring box.

[0008] Preferably, the two ends of the steel bar anchor seat slide along the two sides inside the anchor box, and the top and bottom of the steel bar anchor seat slide along the top and bottom of the inner side of the anchor box respectively.

[0009] Preferably, a hexagonal groove is provided in the middle of the adjusting head, a countersunk hole is provided on the outer side wall of the anchor box, and the adjusting head is located in the countersunk hole.

[0010] Preferably, the arc-shaped groove is a semicircular groove, and a plurality of anchoring teeth are arranged at equal intervals along the inner side wall of the arc-shaped groove.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a concrete beam steel bar anchoring device. By utilizing an inner hexagonal wrench, rotating a screw rod can drive two steel bar anchoring seats to approach synchronously, and compress and anchor the concrete beam steel bar placed between them. The operation is convenient. By fixing steel bar anchoring rings on the inner side walls at both ends of the anchor box, and providing annular inner teeth on the inner side walls of the steel bar anchoring ring, the end of the concrete beam steel bar can be smoothly inserted into the anchor box, and the annular inner teeth can prevent the end of the concrete beam steel bar from easily withdrawing from the anchor box, thereby further improving the anchoring effect of the concrete beam steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a concrete beam reinforcement anchoring device of the utility model;

[0015] Figure 2 This is a structural schematic diagram of a concrete beam steel bar anchoring device of the utility model after removing the steel bar anchoring seat;

[0016] Figure 3 This is a structural schematic diagram of a steel bar anchoring seat in a concrete beam steel bar anchoring device of the utility model;

[0017] Figure 4The utility model is a structural schematic diagram of a steel bar anchoring ring in a concrete beam steel bar anchoring device.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Anchor box; 2. Steel bar anchor seat; 21. Abutment portion; 22. Arc groove; 23. Anchoring teeth; 3. Steel bar anchor ring; 31. Annular inner teeth; 4. Screw rod; 41. Adjusting head. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 As shown, the utility model provides a technical solution:

[0022] The first embodiment of the present invention is a kind of concrete beam steel bar anchoring device, comprising an anchor box 1, the anchor box 1 is symmetrically and movably provided with a steel bar anchor seat 2, the two ends of the steel bar anchor seat 2 slide along the two sides of the anchor box 1, the top and bottom of the steel bar anchor seat 2 slide along the top and bottom of the inner side of the anchor box 1 respectively, and an abutment portion 21 is provided in the middle of the steel bar anchor seat 2, and arc-shaped grooves 22 are symmetrically opened on the steel bar anchor seats 2 on both sides of the abutment portion 21, and anchoring teeth 23 are provided on the inner side wall of the arc-shaped groove 22, and the arc-shaped groove 22 is a semicircular groove, and a plurality of anchoring teeth 23 are evenly spaced along the inner side wall of the arc-shaped groove 22. The setting of the anchoring teeth 23 is used to increase the friction between the inner side wall of the arc-shaped groove 22 and the concrete beam steel bar, so as to anchor the steel bar, and the interior of the anchor box 1 is rotatably connected with a screw rod 4 through a bearing, and the threads at the two ends of the screw rod 4 are opposite in rotation direction, and the two ends of the screw rod 4 respectively thread through the abutment portions 21 in the middle of the two steel bar anchor seats 2, and the screw rod 4 is screwed through the abutment portions 21 in the middle of the two steel bar anchor seats 2. The screw rod 4 is rotated to drive the two steel bar anchor seats 2 to approach synchronously, so that the concrete beam reinforcement placed in the middle is pressed and anchored, which makes the operation more convenient. A countersunk hole is provided on the outer wall of the anchor box 1, and the adjusting head 41 is located in the countersunk hole. When anchoring the concrete beam reinforcement, the ends of the two concrete beam reinforcements can be inserted into the anchor box 1 from the notches at both ends of the anchor box 1, so that the ends of the reinforcements abut against the abutting portion 21. Then, the hexagonal wrench is inserted into the hexagonal groove on the adjusting head 41, and the adjusting head 41 is rotated. At this time, the rotation of the adjusting head 41 can drive the screw rod 4 to rotate, and the rotation of the screw rod 4 can drive the two reinforcement anchor seats 2 to approach synchronously, so that the anchoring teeth 23 on the arc groove 22 effectively contact the outer wall of the concrete beam reinforcement, and the concrete beam reinforcement is pressed and fixed.

[0023] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, the inner walls at both ends of the anchor box 1 are symmetrically fixedly connected with steel bar anchor rings 3, and the inner wall of the steel bar anchor ring 3 is fixedly provided with annular inner teeth 31. The provided steel bar anchor ring 3 and annular inner teeth 31 enable the end of the concrete beam steel bar to be smoothly inserted into the anchor box 1, and the annular inner teeth 31 can prevent the end of the concrete steel bar from easily withdrawing from the anchor box 1, thereby further improving the anchoring effect of the concrete beam steel bar. The tooth tips of the annular inner teeth 31 are arranged toward the inside of the anchor box 1. In the process of inserting the end of the concrete beam steel bar into the anchor box 1, the steel bar end can smoothly pass through the annular inner teeth 31. When anchoring the concrete beam steel bar, the friction between the annular inner teeth 31 and the outer wall of the steel bar can prevent the end of the concrete steel bar from easily withdrawing from the anchor box 1, thereby improving the anchoring effect of the concrete beam steel bar.

[0024] Working principle: during use, when anchoring the concrete beam reinforcement, the ends of the two concrete beam reinforcements can be inserted into the anchor box 1 from the notches at both ends of the anchor box 1, so that the ends of the reinforcements abut against the abutment portion 21. In the process of inserting the ends of the concrete beam reinforcements into the anchor box 1, the reinforcement ends can pass smoothly through the annular inner teeth 31. Then, the hexagonal wrench is inserted into the hexagonal groove on the adjusting head 41, and the adjusting head 41 is rotated. At this time, the rotation of the adjusting head 41 can drive the screw 4 to rotate, and the rotation of the screw 4 can drive the two reinforcement anchor seats 2 to approach synchronously, so that the anchoring teeth 23 on the arc-shaped groove 22 are effectively in contact with the outer wall of the concrete beam reinforcement, and the concrete beam reinforcement is pressed and fixed. When anchoring the concrete beam reinforcement, the friction between the annular inner teeth 31 and the outer wall of the reinforcement can prevent the ends of the concrete reinforcement from easily withdrawing from the anchor box 1, thereby improving the anchoring effect of the concrete beam reinforcement.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A concrete beam reinforcement anchoring device, comprising an anchor box (1), characterized in that: A steel bar anchor seat (2) is symmetrically and movably arranged inside the anchor box (1), an abutment portion (21) is arranged in the middle of the steel bar anchor seat (2), arc-shaped grooves (22) are symmetrically opened on the steel bar anchor seats (2) on both sides of the abutment portion (21), and anchoring teeth (23) are arranged on the inner side walls of the arc-shaped grooves (22). A screw rod (4) is rotatably connected to the inside of the anchor box (1) via a bearing, the threads at both ends of the screw rod (4) are in opposite directions, and the two ends of the screw rod (4) are respectively threaded through the abutment portions (21) in the middle of the two steel bar anchor seats (2), and an adjustment head (41) is fixedly arranged at one end of the screw rod (4).

2. A concrete beam reinforcement anchoring device according to claim 1, characterized in that: Steel bar anchoring rings (3) are symmetrically fixedly connected to the inner walls at both ends of the anchoring box (1).

3. A concrete beam reinforcement anchoring device according to claim 2, characterized in that: An annular inner tooth (31) is fixedly arranged on the inner side wall of the steel bar anchoring ring (3), and the tooth tip of the annular inner tooth (31) is arranged toward the inside of the anchoring box (1).

4. A concrete beam reinforcement anchoring device according to claim 1, characterized in that: The two ends of the steel bar anchor seat (2) slide along the two sides inside the anchor box (1), and the top and bottom of the steel bar anchor seat (2) slide along the top and bottom of the inner side of the anchor box (1) respectively.

5. A concrete beam reinforcement anchoring device according to claim 1, characterized in that: A hexagonal groove is provided in the middle of the adjusting head (41), a countersunk hole is provided on the outer side wall of the anchor box (1), and the adjusting head (41) is located in the countersunk hole.

6. A concrete beam reinforcement anchoring device according to claim 1, characterized in that: The arc-shaped groove (22) is a semicircular groove, and a plurality of anchoring teeth (23) are arranged at equal intervals along the inner side wall of the arc-shaped groove (22).

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