Simple support for fixing prestressed steel strand

Abstract

The utility model relates to a simple support for fixing a prestressed steel strand, which comprises a support body, a plurality of grooves are arranged on the outer contour of the support body at intervals, the grooves are used for being connected with anchor rods, a bearing ring is arranged in the center of the support body, and the bearing ring is used for bearing a grouting pipe. A plurality of penetrating holes are formed in the support body in the circumferential direction of the bearing ring at intervals and used for being connected with anchor rods, and the diameter of the penetrating holes is different from that of the grooves. Installation is easy and firm, batch production can be achieved, the production efficiency is greatly improved, and the manual manufacturing and installing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a simple bracket for fixing prestressed steel strands. Background Art

[0002] Stranded steel wire is a steel product made of multiple strands of steel wires. The surface of carbon steel can be coated with zinc, zinc-aluminum alloy, aluminum clad, copper, epoxy coated, etc. as needed. In order to resist the upward buoyancy of groundwater after the main body of the second floor of the basement is built, prestressed anti-floating anchor rods are required below the basement raft foundation to resist the buoyancy of water. When assembling the prestressed anchor rods, brackets are required to separate the anchor rods or install grouting pipes.

[0003] At present, when manufacturing steel strand brackets, it is necessary to break the surface of the steel strand and then weld it with the positioning stirrups and the center iron pipe. The construction quality control is difficult, and the effective force-bearing inner diameter of the steel strand will be damaged. The welding points are prone to electrochemical corrosion during subsequent use, which will damage the effective force-bearing inner diameter of the steel strand. In addition, there are many steps in the production of steel strands, including cutting stirrups, breaking the surface of the steel strand, and symmetrical welding at both ends. The construction process is relatively complicated, the labor cost is high, and the construction progress of production and installation is slow.

[0004] Therefore, how to make a bracket for fixing prestressed steel strands that is easy to install, firm, and can be mass-produced is a technical problem that urgently needs to be solved. Utility Model Content

[0005] In view of this, the utility model provides a simple bracket for fixing prestressed steel strands, which is not only easy and firm to install, but also can be mass-produced, greatly improving production efficiency and reducing labor manufacturing costs.

[0006] The utility model provides a simple bracket for fixing prestressed steel strands, which adopts the following technical solution:

[0007] A simple bracket for fixing prestressed steel strands comprises a bracket body, the outer contour of the bracket body is provided with a plurality of grooves at intervals, the grooves are used to connect with anchor rods, a load-bearing ring is provided in the center of the bracket body, the load-bearing ring is used to bear a grouting pipe, the bracket body is provided with a plurality of through holes at intervals along the circumference of the load-bearing ring, the through holes are used to connect with anchor rods, and the diameter of the through holes is different from the diameter of the grooves.

[0008] Optionally, a clamping assembly is provided on the inner contour of the carrying ring, and the clamping assembly is used to clamp the grouting pipe.

[0009] Optionally, the clamping assembly includes a clamping member and an elastic member, wherein the clamping member is provided with a plurality of inner contours of the bearing ring at intervals along the circumference of the bearing ring, and the elastic member is used to apply an inward pre-tightening force to the bearing ring.

[0010] Optionally, a guide surface is provided on the top of the clamping member, and the bearing ring contacts the guide surface to apply outward pressure to the clamping member.

[0011] Optionally, an anti-slip groove is provided on the inner contour of the clamping member.

[0012] Optionally, a second anti-slip groove is provided on the side wall of the groove.

[0013] Optionally, the bracket body is made of plastic.

[0014] In summary, the utility model includes at least one of the following beneficial technical effects: it is not only easy and firm to install, but also can be mass-produced, greatly improving production efficiency and reducing manual installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 It is a schematic structural diagram of a clamping member according to an embodiment of the utility model.

[0018] Explanation of the accompanying drawings: 1. bracket body; 2. groove; 3. load-bearing ring; 4. through hole; 5. clamping part; 6. guide surface. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0020] The following is combined with Figure 1-2 The utility model is described in further detail.

[0021] The utility model embodiment discloses a simple bracket for fixing prestressed steel strands.

[0022] Reference Figure 1 and Figure 2 A simple bracket for fixing prestressed steel strands includes a bracket body 1, a plurality of grooves 2 are arranged at intervals on the outer contour of the bracket body 1, the grooves 2 are used to connect with anchor rods, a bearing ring 3 is provided in the center of the bracket body 1, the bearing ring 3 is used to carry a grouting pipe, and a plurality of through holes 4 are arranged at intervals along the circumference of the bearing ring 3 on the bracket body 1, the through holes 4 are used to connect with anchor rods, and the diameter of the through holes 4 is different from the diameter of the grooves 2. It is not only easy to install and firm, but also can be mass-produced, greatly improving production efficiency and reducing manual manufacturing and installation costs.

[0023] The material of the bracket body 1 is plastic, specifically, PP material. Plastic can make the bracket body 1 light, chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear resistance processing performance.

[0024] In this embodiment, three grooves 2 are provided, and a second anti-slip groove is provided on the side wall of the groove 2. The second groove 2 increases the stability of the connection between the bracket body 1 and the anchor rod.

[0025] In this embodiment, the groove 2 and the perforation 4 are both used to connect with an anchor rod made of steel strand. According to the different sizes of the anchor rod, it is installed in the corresponding groove 2 or perforation 4. Specifically, the diameter of the groove 2 is larger than the diameter of the perforation 4. When the diameter of the anchor rod is larger, it is installed in the groove 2, and when it is smaller, it is installed in the perforation 4, thereby improving applicability.

[0026] A clamping assembly is provided on the inner contour of the load-bearing ring 3, and the clamping assembly is used to clamp the grouting pipe. In the present embodiment, the clamping assembly includes a clamping member 5 and an elastic member, and the clamping member 5 is provided with a plurality of inner contours of the load-bearing ring 3 at intervals along the circumference of the load-bearing ring 3, and the elastic member is used to apply an inward preload force to the load-bearing ring 3. The clamping member 5 is driven inward by the elastic member to move inward, so as to tighten the outer contour of the grouting pipe, so as to adapt to grouting pipes of different sizes, and the setting of the elastic member can buffer the vibration generated by the grouting pipe during the pouring process, so as to reduce the vibration force transmitted to the bracket body 1 during the grouting process of the grouting pipe, thereby ensuring the overall stability and making the bracket more firmly connected to the anchor rod and the grouting pipe. Among them, the elastic member adopts a spring, one end of the spring is fixedly connected to the inner contour of the load-bearing ring 3, and the other end is fixedly connected to the clamping member 5.

[0027] The top of the clamp 5 is provided with a guide surface 6, and the bearing ring 3 contacts the guide surface 6 to apply outward pressure to the clamp 5, so that the grouting pipe contacts the guide surface 6, and then the grouting pipe is continuously lowered, and the clamp 5 is driven to move outward through the guide surface 6, so that the clamp 5 is expanded as a whole. Then, under the action of the elastic member, it is always pressed against the outer contour of the grouting pipe.

[0028] An anti-skid groove 1 is provided on the inner contour of the clamping member 5, and the anti-skid groove 1 increases the connection friction between the clamping member 5 and the grouting pipe, making the connection more stable.

[0029] The optimized bracket of the utility model can be mass-produced, and the production and installation of on-site anchor rods are simpler and more solid, which reduces the difficulty of construction quality control required by the prior art welding.

[0030] The support body 1 of the utility model is used to cooperate with the prestressed anchor rod, and can expand the steel strand, straighten the steel strand so that the steel strand is anchored more tightly, prevent the steel strand from being disordered, and make the stress more uniform.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make some improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A simple bracket for fixing prestressed steel strands, characterized in that: It includes a bracket body, the outer contour of which is provided with a plurality of grooves at intervals, the grooves being used to connect with anchor rods, a bearing ring being provided in the center of the bracket body, the bearing ring being used to bear a grouting pipe, the bracket body being provided with a plurality of through holes at intervals along the circumference of the bearing ring, the through holes being used to connect with anchor rods, and the diameter of the through holes being different from the diameter of the grooves.

2. The simple bracket for fixing prestressed steel strands according to claim 1, characterized in that: A clamping assembly is provided on the inner contour of the bearing ring, and the clamping assembly is used to clamp the grouting pipe.

3. The simple bracket for fixing prestressed steel strands according to claim 2 is characterized in that: The clamping assembly comprises a clamping member and an elastic member. The clamping member is provided with a plurality of inner contours of the bearing ring at intervals along the circumference of the bearing ring. The elastic member is used to apply an inward pre-tightening force to the bearing ring.

4. The simple bracket for fixing prestressed steel strands according to claim 3 is characterized in that: A guide surface is provided on the top of the clamping member, and the carrying ring contacts the guide surface to apply outward pressure to the clamping member.

5. The simple bracket for fixing prestressed steel strands according to claim 4, characterized in that: An anti-slip groove 1 is provided on the inner contour of the clamping piece.

6. The simple bracket for fixing prestressed steel strands according to claim 1, characterized in that: A second anti-slip groove is provided on the side wall of the groove.

7. The simple bracket for fixing prestressed steel strands according to claim 1, characterized in that: The material of the bracket body is plastic.

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