Anchor pulling tool for prestressed T-shaped beam of bridge

Abstract

The utility model provides an anchor pulling tool for a prestressed T-beam of a bridge, and relates to the field of anchor pulling tools. The top end of the tool body is slidably provided with an ejection piece through an outer groove and a guide rod assembly, the top end of the ejection piece is provided with a freely detachable adsorption assembly in an embedded mode through an embedded groove, and a handle is arranged on the side edge of the adsorption assembly made of a magnet material. The adsorption assembly is controlled to be embedded into the embedding groove, the adsorption assembly adsorbs all the clamping piece assemblies to ascend together with the help of suction force, when the prestressed tendons are inserted, the prestressed tendons drive the clamping piece assemblies to be installed together through the clamping piece assemblies and the ejection piece with the help of the suction force, and after the prestressed tendons are pulled, the clamping piece assemblies are continuously stressed in the through holes. The anchoring effect and the anchoring strength are improved, and the problems that when a common bridge prestressed T-beam anchoring tool anchors prestressed tendons through clamping piece assemblies, a plurality of clamping piece assemblies are scattered, overall movement and installation are strenuous, and the installation efficiency is affected are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of anchoring tools, and in particular to an anchoring tool for a prestressed T-beam of a bridge. Background Technology

[0002] Precast prestressed continuous T-beams are commonly used in the reconstruction and expansion of mountain highways. After installation, prestressed T-beams effectively improve the load-bearing capacity of bridges. Applying prestress to the T-beams allows the potential of the concrete and steel reinforcement to be fully utilized, enabling the T-beams to better resist bending and shear stresses, thus effectively improving the strength and service life of the bridge. Prestressed T-beams are used in conjunction with other long-span bridge structures to form a complete bridge system. During installation, anchorage devices are required to secure the ends of the prestressing tendons to the concrete members. When the prestressing tendons are tensioned, the concrete members are pre-stressed, allowing the bridge to withstand external loads during subsequent use. The tensile stress generated by external loads must first counteract the prestress within the concrete before it generates tensile stress, thereby improving the beam's crack resistance and load-bearing capacity. Anchoring devices typically consist of anchor plates and wedge assemblies, with two or three wedge assemblies usually installed in the conical holes of the anchor plate. However, in commercially available anchoring devices for prestressed T-beams of bridges, the multiple wedge assemblies are scattered when anchoring the prestressing tendons, making overall movement and installation laborious and affecting installation efficiency. Furthermore, anchoring devices are usually connected to corrugated pipes, but the connection effect is limited, and they are prone to detachment later. Summary of the Invention

[0003] This disclosure relates to an anchoring device for a prestressed T-beam of a bridge. After the bottom structure is connected to the corrugated pipe, the corrugated pipe is fitted onto the outside of the bottom end of the bottom structure and is located outside the stress groove at the bottom. By controlling the rotation rod and the pulling rod to rotate together with a wrench, the pulling rod pulls the outer structure to move and displace together with the outer structure through the thread, so that the outer structure drives the pushing structure to move together and push the structure to embed into the inside of the stress groove. At the same time, the corrugated pipe is clamped by force, which improves the fixing effect of the corrugated pipe and avoids loosening after long-term use.

[0004] In a first aspect, this disclosure provides an anchoring device for prestressed T-beams of bridges, specifically comprising: a device body; the device body is a circular structure, and a top component is slidably mounted on the top of the device body via an outer groove and a guide rod assembly. The top component is a freely movable structure, and a circular hole is provided inside the top component. A freely detachable adsorption assembly is embedded in the top of the top component via an embedding groove, and a handle is provided on the side of the magnetic adsorption assembly; a bottom component structure; the bottom component structure is installed at the bottom of the device body, and a rotating rod and a pulling rod are mounted on the bottom of the bottom component structure via an installation structure. The outer end of the pulling rod is connected to an outer component structure, and a pushing structure is fixed at the bottom of the outer component structure. The inner sides of both the outer component structure and the pushing structure are arc-shaped structures, and both ends of the outer component structure are arc-shaped structures.

[0005] In at least some embodiments, the outer side of the device body is provided with annularly evenly arranged outer grooves, the outer grooves being T-shaped. The inside of the device body is provided with annularly evenly arranged through holes, the inside of which is conical, and the positions of the through holes correspond to the positions of the circular holes. Two clamping assemblies are installed inside the through holes, the two clamping assemblies are symmetrically spliced, the bottom outer side of the clamping assemblies is inclined, the inside of the clamping assemblies is provided with anti-slip teeth and anti-slip grooves, and the outer end of the clamping assemblies is provided with a stop. A T-shaped guide rod assembly is inserted into the outer groove, the guide rod assembly is freely pulled out inside the outer groove, the top of the annularly evenly arranged guide rod assembly is fixedly connected to the bottom of the top piece, the top of the top piece is provided with an embedding groove, and an adsorption assembly is embedded inside the embedding groove.

[0006] In at least some embodiments, the bottom component structure has a slot on its upper part, into which the bottom end of the tool body is inserted. The bottom of the bottom component structure has two force grooves, the cross-section of which is semi-circular. An outer component structure is embedded in the top force groove, and a pushing structure is embedded in the bottom force groove. An installation structure is fixed on each side of the bottom of the bottom component structure. The installation structure is located inside the top force groove, and a freely rotatable rotating rod is inserted inside the installation structure. A pull rod is fixed at each end of the rotating rod. The pull rod with external threads has a hexagonal structure at its outer end. The threads of the two pull rods on the same side are symmetrically arranged. The outer end of the outer component structure has a tensioning hole with internal threads. The pull rod is inserted into the tensioning hole.

[0007] This utility model provides an anchoring tool for prestressed T-beams of bridges, which has the following beneficial effects:

[0008] When controlling the clamping assembly to clamp the prestressing tendon, the handle can be used to control the adsorption assembly to embed into the embedding groove. Then, the top piece can be controlled to move up and down, so that the adsorption assembly uses suction to pull all the clamping assemblies up together. When the prestressing tendon is inserted, the inclined structure of the bottom outer side of the clamping assembly allows the prestressing tendon to push the clamping assembly to expand, allowing the prestressing tendon to pass through the clamping assembly. Then, the top piece can be controlled to move down, and the top piece uses the adsorption force to drive all the clamping assemblies to be installed together. After the prestressing tendon is pulled, the clamping assembly is continuously stressed inside the through hole, and is fixed with the prestressing tendon by anti-slip teeth and anti-slip grooves, improving the anchoring effect and tensile strength. At the same time, when the clamping assembly moves outward, it can also be blocked by the top piece to prevent the clamping assembly from falling off and being lost. After the adsorption assembly is used, it can be directly removed for convenient use on other tools.

[0009] After the base structure is connected to the bellows, the bellows is fitted onto the outside of the bottom end of the base structure and is located outside the force-bearing groove at the bottom. By controlling the rotation rod and the pulling rod to rotate together with the wrench, the pulling rod pulls the outer structure to move and displace together with the thread, so that the outer structure drives the pushing structure to move together and push the structure into the inside of the force-bearing groove. At the same time, the force clamps the bellows, improving the fixing effect of the bellows and preventing loosening after long-term use. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0011] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0012] In the attached diagram:

[0013] Figure 1 A three-dimensional structural schematic diagram of this application is shown;

[0014] Figure 2 A bottom view of the structure of this application is shown;

[0015] Figure 3 An exploded three-dimensional structural diagram of this application is shown;

[0016] Figure 4 This invention provides an exploded three-dimensional structural diagram of the device body.

[0017] Figure 5 This paper shows an exploded three-dimensional structural diagram of the base component of this application;

[0018] Figure 6 This paper shows an exploded bottom view of the bottom structure of the present application;

[0019] List of reference numerals

[0020] 1. Tool body; 101. Outer groove; 102. Through hole; 103. Clamping plate assembly; 104. Stop; 105. Guide rod assembly; 106. Top piece; 107. Embedded groove; 108. Adsorption assembly;

[0021] 2. Bottom structure; 201. Slot; 202. Force groove; 203. Mounting structure; 204. Rotating rod; 205. Pulling rod; 206. External structure; 207. Tensioning hole; 208. Pushing structure. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1 to 6 :

[0024] This utility model proposes an anchoring tool for prestressed T-beams of bridges, comprising: a tool body 1; the tool body 1 has a circular structure, and a top member 106 is slidably mounted on the top of the tool body 1 via an outer groove 101 and a guide rod assembly 105. The top member 106 is a freely movable structure, and a circular hole is provided inside the top member 106. A freely detachable adsorption assembly 108 is embedded in the top of the top member 106 via an embedding groove 107. The adsorption assembly 108, made of magnetic material, has a handle on its side, which can be used to control the movement of the adsorption assembly 108, so that the adsorption assembly 108 is embedded into the embedding groove 107 of the top member 106 for use, utilizing the magnetic adsorption force. The clamping components 103 on the left and right sides move up and down together to improve installation efficiency; the bottom structure 2 is installed at the bottom of the appliance body 1. The bottom of the bottom structure 2 is equipped with a rotating rod 204 and a pulling rod 205 through the mounting structure 203. The outer end of the pulling rod 205 is connected to the outer structure 206. The bottom of the outer structure 206 is fixed with a pushing structure 208. The inner sides of the outer structure 206 and the pushing structure 208 are both arc-shaped structures. The two ends of the outer structure 206 are arc-shaped structures, so that the outer structure 206 drives the pushing structure 208 to move together, so that the pushing structure 208 clamps and fixes the bellows, preventing the bellows from detaching.

[0025] In this embodiment of the disclosure, such as Figure 3 and Figure 4As shown, the outer side of the tool body 1 has annularly arranged grooves 101. The outer grooves 101 have a T-shaped structure, allowing the guide rod assembly 105 to be freely pulled in and out. The inside of the tool body 1 has annularly arranged through holes 102 for inserting prestressing tendons. The inside of the through holes 102 has a conical structure for embedding clamping assemblies 103 to clamp the prestressing tendons and improve the anchoring effect. The position of the through holes 102 corresponds to the position of the circular holes. Two clamping assemblies 103 are installed inside the through holes 102. The two clamping assemblies 103 are symmetrically spliced. The bottom outer side of the clamping assembly 103 has an inclined structure. The internal part of component 103 is provided with anti-slip teeth and anti-slip grooves for anti-slip contact and fixation with the prestressing tendon. The outer end of the clamping component 103 is provided with a stop 104 to assist in limiting and fixing the clamping component 103. A T-shaped guide rod assembly 105 is inserted into the inner part of the outer groove 101. The guide rod assembly 105 is freely pulled out inside the outer groove 101. The top of the evenly arranged annular guide rod assembly 105 is fixedly connected to the bottom of the top component 106, driving the top component 106 to move together. The top of the top component 106 is provided with an embedding groove 107. An adsorption component 108 is embedded in the inner part of the embedding groove 107, so that the adsorption component 108 is embedded and connected.

[0026] In this embodiment of the disclosure, such as Figure 5 and Figure 6 As shown, a slot 201 is provided on the upper part of the base structure 2. The bottom end of the tool body 1 is inserted into the slot 201, and the tool body 1 is positioned and connected to the base structure 2. The bottom of the base structure 2 has two force grooves 202. The cross-section of the annular force groove 202 is semi-circular. An outer component structure 206 is embedded in the top force groove 202, and a pushing structure 208 is embedded in the bottom force groove 202. After the outer component structure 206 and the pushing structure 208 are embedded, the corrugated pipe is clamped and fixed. An installation structure 203 is fixed on each side of the bottom of the base structure 2. The installation structure 203 is located inside the top force groove 202. A freely rotatable rotating rod 204 is inserted inside 203, which drives the pulling rod 205 to rotate together. A pulling rod 205 is fixed at each end of the rotating rod 204. The outer end of the pulling rod 205 with threads is hexagonal, which is convenient to control the rotation with a wrench. The threads of the two pulling rods 205 on the same side are symmetrically arranged. The outer end of the outer component structure 206 is provided with a tensioning hole 207. The tensioning hole 207 is threaded inside. The pulling rod 205 is inserted into the tensioning hole 207. After the pulling rod 205 rotates, the outer component structure 206 and the pushing structure 208 are displaced together through the tensioning hole 207 to clamp and fix the bellows.

[0027] The working principle of this embodiment is as follows: When it is necessary to anchor the prestressed T-beam of a bridge, the base structure 2 and the tool body 1 can be installed and used together. Then, the adsorption component 108 is embedded into the embedding groove 107. Then, the handle controls the adsorption component 108 and the top component 106 to move together. With the help of adsorption force, all the clamping plate components 103 are adsorbed and moved together. Then, the prestressing tendons are controlled to pass through the interior of the base structure 2, the through hole 102, the interior of the clamping plate components 103, and the interior of the circular hole. Then, the top component 106 is controlled to reset, driving the left and right clamping plates. The component 103 is embedded into the through hole 102. After the prestressed tendon is stressed, it drives the clamping plate component 103 to move together, generating a force to clamp the prestressed tendon and improve the anchoring effect. Then, the corrugated pipe is controlled to be fitted onto the outside of the bottom structure 2. The pull rod 205 and the rotating rod 204 are rotated together by the wrench. The pull rod 205 controls the outer structure 206 and the pushing structure 208 to move together through the thread. While the pushing structure 208 is embedded into the stress groove 202, it squeezes and fixes the corrugated pipe, improving the fixing effect of the corrugated pipe and preventing it from falling off later.

[0028] The following points should be noted in this article:

[0029] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0030] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An anchoring device for a prestressed T-beam of a bridge, characterized in that, include: The appliance body (1) is circular. A top piece (106) is slidably mounted on the top of the appliance body (1) via an outer groove (101) and a guide rod assembly (105). The top piece (106) is freely movable up and down. A circular hole is provided inside the top piece (106). A freely detachable adsorption assembly (108) is embedded in the top of the top piece (106) via an embedding groove (107). The magnetic adsorption assembly (108) has a handle on its side. The bottom structure ( 2); The bottom structure (2) is installed at the bottom of the appliance body (1). The bottom of the bottom structure (2) is equipped with a rotating rod (204) and a pulling rod (205) through the mounting structure (203). The outer end of the pulling rod (205) is connected to the outer structure (206). The bottom of the outer structure (206) is fixed with a pushing structure (208). The inner sides of the outer structure (206) and the pushing structure (208) are both arc-shaped structures. The two ends of the outer structure (206) are arc-shaped structures.

2. The anchorage device for a prestressed T-beam of a bridge according to claim 1, characterized in that, The outer side of the tool body (1) is provided with an annularly uniformly arranged outer groove (101), the outer groove (101) is a T-shaped structure, and the inside of the tool body (1) is provided with an annularly uniformly arranged through hole (102), the inside of the through hole (102) is a conical structure, and the position of the through hole (102) corresponds to the position of the round hole.

3. The anchorage device for a prestressed T-beam of a bridge according to claim 2, characterized in that, Two clamping assemblies (103) are installed inside the through hole (102). The two clamping assemblies (103) are symmetrically spliced ​​together. The bottom outer side of the clamping assembly (103) is inclined. The clamping assembly (103) is provided with anti-slip teeth and anti-slip grooves inside. The outer end of the clamping assembly (103) is provided with a stop (104).

4. The anchorage device for a prestressed T-beam of a bridge according to claim 3, characterized in that, A T-shaped guide rod assembly (105) is inserted inside the outer groove (101). The guide rod assembly (105) is freely pulled out inside the outer groove (101). The top of the guide rod assembly (105) arranged in a ring is fixedly connected to the bottom of the top piece (106). The top of the top piece (106) is provided with an embedding groove (107). An adsorption assembly (108) is embedded inside the embedding groove (107).

5. The anchorage device for a prestressed T-beam of a bridge according to claim 4, characterized in that, The bottom component structure (2) has a slot (201) on its upper part. The bottom end of the tool body (1) is inserted into the slot (201). The bottom of the bottom component structure (2) has two force grooves (202). The cross-section of the annular force groove (202) is semi-circular. An outer component structure (206) is embedded inside the top force groove (202), and a pushing structure (208) is embedded inside the bottom force groove (202).

6. The anchorage device for a prestressed T-beam of a bridge according to claim 5, characterized in that, The bottom of the bottom component structure (2) is fixed with an installation structure (203) on each side. The installation structure (203) is located inside the top force groove (202). A freely rotatable rotating rod (204) is inserted inside the installation structure (203).

7. The anchorage device for a prestressed T-beam of a bridge according to claim 6, characterized in that, The rotating rod (204) has a pull rod (205) fixed at each end. The pull rod (205) with external threads has a hexagonal structure at its outer end. The threads of the two pull rods (205) on the same side are symmetrically arranged. The outer end of the outer component structure (206) is provided with a tensioning hole (207). The tensioning hole (207) is provided with threads inside. The pull rod (205) is inserted into the tensioning hole (207).

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