Prestressed anchor rod

Abstract

The utility model relates to the technical field of anchor rods, in particular to a pre-stressed anchor rod which comprises a connecting anchor rod, a telescopic fixing structure is connected in an inner cavity of the connecting anchor rod, a movable connecting plate structure is connected on the outer wall of the connecting anchor rod, and the telescopic fixing structure comprises a fixed connecting plate. The fixed connecting plate is connected to the side wall of an inner cavity of the connecting anchor rod, the bottom of the fixed connecting plate is connected with a plurality of sets of connecting sliding rails, the side walls of the connecting sliding rails are connected with connecting sliding blocks, and the side walls of the connecting sliding blocks are connected with movable supporting plates. Therefore, the movable supporting plate in the telescopic fixing structure passes through the transmission structure, after the anchor rod head is stressed and extruded, the movable supporting plate and the inner wall of the preset hole form extrusion, and then fixation of the pre-stressed anchor rod is completed, so that the pre-stressed anchor rod is more stable after being fixed and more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor rod, concretely is a prestressed anchor rod. BACKGROUND

[0002] The prestressed anchor rod mainly uses high-strength finished rolled threaded steel as the main stress component, is composed of an anchor head, a rod body and a backing plate, prestressed tension and locking are carried out on the reinforcing steel bar, the anchoring force generated by the anchor head is used to exert a certain pre-stress on the surrounding rock, and the surrounding rock is actively reinforced, the prestressed anchor rod frame is mainly applied to the stratum with blockiness and above, and the effect is better.

[0003] At present, the anchor rod is directly inserted into the hole when being used, is fixed only by the anti-skid structure on the surface of the anchor rod after pouring, and the backing plate and the anchor rod are mostly connected through threads, so that the device is not very convenient when being used, and the prestressed anchor rod needs to be provided for the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a prestressed anchor rod, to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A prestressed anchor rod, including the anchor rod of connection, the inner chamber of the anchor rod of connection is connected with telescopic fixed structure, the outer wall of the anchor rod of connection is connected with the moving connecting plate structure;

[0007] The telescopic fixed structure includes a fixed connecting plate, the fixed connecting plate is connected on the side wall of the inner chamber of the anchor rod of connection, the bottom of the fixed connecting plate is connected with a plurality of groups of connection sliding rails, the side wall of the connection sliding rail is connected with the connection sliding block, the side wall of the connection sliding block is connected with the moving support plate, the bottom of the connection sliding block is connected with the fixed connecting seat, the fixed connecting seat is connected with the connection support rod, the other end of the connection support rod is connected with the connection connecting seat, the side wall of the connection connecting seat is connected with the connection connecting plate, the bottom of the connection connecting plate and in the inner chamber of the anchor rod of connection are connected with the anchor rod head, a plurality of groups of connection sliding grooves are formed in the side wall of the anchor rod head.

[0008] As the preferred scheme of the utility model, the mobile connecting plate structure includes a mobile connecting plate, the mobile connecting plate is connected on the outer wall of the connecting anchor rod, limit sliding blocks are symmetrically connected on the side wall of the mobile connecting plate, connecting supports are arranged on the end face of the mobile connecting plate and located on the two sides of the connecting anchor rod, rotating connecting rods are connected on the connecting supports, fixed clamping blocks are connected on one end of the rotating connecting rods, fixed clamping teeth are arranged on the outer wall of the connecting anchor rod and correspond to the fixed clamping blocks, and reset springs are connected between the rotating connecting rods and the mobile connecting plate.

[0009] As the preferred scheme of the utility model, the connecting sliding blocks are provided with sliding grooves corresponding to the connecting sliding rails, and the connecting sliding rails and the sliding grooves are connected in a sliding mode.

[0010] As the preferred scheme of the utility model, the side wall of the connecting anchor rod is provided with a connecting groove corresponding to the mobile supporting plate, and the mobile supporting plate and the connecting groove are matched in a clearance fit mode.

[0011] As the preferred scheme of the utility model, the fixed connecting seat and the connecting supporting rod are connected in rotation through a rotating shaft, and the connecting supporting rod and the connecting seat are connected in rotation through a rotating shaft.

[0012] As the preferred scheme of the utility model, the inner wall of the connecting anchor rod is provided with a sliding rail corresponding to the connecting sliding groove, and the connecting sliding groove and the sliding rail are connected in a sliding mode.

[0013] As the preferred scheme of the utility model, the outer wall of the connecting anchor rod is provided with a sliding groove corresponding to the limit sliding block, the limit sliding block and the sliding groove are connected in a sliding mode, and the connecting support and the rotating connecting rod are connected in rotation through a rotating shaft.

[0014] As the preferred scheme of the utility model, the side wall of the fixed clamping block is provided with a fixed tooth corresponding to the fixed clamping tooth, and the fixed clamping tooth and the fixed tooth are connected in a meshing mode.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] In the utility model, the telescopic fixing structure is arranged in the prestressed anchor rod, so that the mobile supporting plate in the telescopic fixing structure is extruded after the anchor rod head is stressed, the mobile supporting plate is extruded with the inner wall of the preset hole, the fixing of the prestressed anchor rod is completed, the prestressed anchor rod is more stable after being fixed, and the use is more convenient.

[0017] In this invention, a movable connecting plate structure is set in the prestressed anchor rod. The fixed blocks and fixed teeth in the movable connecting plate structure are used to drive the transmission structure so that the movable connecting plate can be fixed in time after movement, which facilitates the fixing of the movable connecting plate to the ground and makes the device more convenient to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 This is a schematic diagram of the telescopic fixing structure of this utility model;

[0021] Figure 4 for Figure 3 Partial structural diagram;

[0022] Figure 5 This is a schematic diagram of the movable connecting plate structure of this utility model;

[0023] Figure 6 for Figure 5 A partial structural diagram.

[0024] In the diagram: 1. Connecting anchor bolt; 2. Telescopic fixing structure; 3. Moving connecting plate structure; 201. Fixed connecting plate; 202. Connecting slide rail; 203. Connecting slider; 204. Moving support plate; 205. Fixed connecting seat; 206. Connecting support rod; 207. Connecting connecting seat; 208. Connecting plate; 209. Anchor bolt head; 210. Connecting groove; 301. Moving connecting plate; 302. Limiting slider; 303. Connecting bracket; 304. Rotating connecting rod; 305. Fixed locking block; 306. Fixed locking tooth; 307. Return spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For an example, please refer to... Figures 1-6 This utility model provides a technical solution:

[0027] A prestressed anchor rod, comprising a connecting anchor rod 1, a telescopic fixing structure 2 is connected in the inner cavity of the connecting anchor rod 1, and a moving connecting plate structure 3 is connected to the outer wall of the connecting anchor rod 1;

[0028] In this embodiment, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the telescopic fixing structure 2 comprises a fixed connecting plate 201 connected to the side wall of the inner cavity of the connecting anchor rod 1, a plurality of sets of connecting sliding rails 202 connected to the bottom of the fixed connecting plate 201, connecting sliding blocks 203 connected to the side wall of the connecting sliding rails 202, moving support plates 204 connected to the side wall of the connecting sliding blocks 203, fixed connecting seats 205 connected to the bottom of the connecting sliding blocks 203, connecting support rods 206 connected to the fixed connecting seats 205, connecting connecting seats 207 connected to the other end of the connecting support rods 206, connecting connecting plates 208 connected to the side wall of the connecting connecting seats 207, and an anchor rod head 209 connected to the bottom of the connecting connecting plates 208 and located in the inner cavity of the connecting anchor rod 1, a plurality of sets of connecting sliding grooves 210 are formed in the side wall of the anchor rod head 209;

[0029] Based on the above structure and the connecting relationship of the above structure, the prestressed anchor rod is inserted into the hole, when the anchor rod head 209 is extruded with the bottom of the hole, the anchor rod head 209 is driven to move in the inner cavity of the connecting anchor rod 1, the connecting sliding blocks 203 and the moving support plates 204 are driven to move on the connecting sliding rails 202 through the connecting support rods 206 when the connecting connecting plates 208 move, so that the moving support plates 204 abut against the side wall of the preset hole, and then the fixing of the prestressed anchor rod is completed;

[0030] Further, the connecting sliding blocks 203 are provided with sliding grooves corresponding to the connecting sliding rails 202, the connecting sliding rails 202 and the sliding grooves are connected in a sliding manner, the side wall of the connecting anchor rod 1 is provided with a connecting groove corresponding to the moving support plates 204, the moving support plates 204 and the connecting groove are matched in a clearance fit manner, the fixed connecting seats 205 and the connecting support rods 206 are connected through rotating shafts, the connecting support rods 206 and the connecting connecting seats 207 are connected through rotating shafts, and the inner wall of the connecting anchor rod 1 is provided with a sliding rail corresponding to the connecting sliding grooves 210, the connecting sliding grooves 210 and the sliding rail are connected in a sliding manner;

[0031] In this embodiment, referring to Figure 1 、 Figure 2 、 Figure 5 and Figure 6, the movable connecting plate structure 3 comprises a movable connecting plate 301 connected on the outer wall of the connecting anchor rod 1, limit sliding blocks 302 are symmetrically connected on the side wall of the movable connecting plate 301, connecting supports 303 are arranged on the end face of the movable connecting plate 301 and located on both sides of the connecting anchor rod 1, rotating connecting rods 304 are connected on the connecting supports 303, fixed clamping blocks 305 are connected on one end of the rotating connecting rods 304, fixed clamping teeth 306 are arranged on the outer wall of the connecting anchor rod 1 and correspond to the fixed clamping blocks 305, and reset springs 307 are connected between the rotating connecting rods 304 and the movable connecting plate 301.

[0032] Under the condition of the above structure and the connecting relationship of the above structure, the movable connecting plate 301 is manually pressed downwards, so that the movable connecting plate 301 moves downwards on the outer wall of the connecting anchor rod 1 until the movable connecting plate 301 contacts the ground, in the process that the movable connecting plate 301 moves downwards on the outer wall of the connecting anchor rod 1, the fixed clamping blocks 305 are driven to rotate through the rotating connecting rods 304, and the fixed clamping blocks 305 and the fixed clamping teeth 306 are always in the meshing state under the action of the reset springs 307, so that the fixing between the movable connecting plate 301 and the ground is completed.

[0033] Further, a sliding groove is arranged on the outer wall of the connecting anchor rod 1 and corresponds to the limit sliding block 302, the connecting mode of the limit sliding block 302 and the sliding groove is sliding connection, the connecting supports 303 and the rotating connecting rods 304 are connected through rotating shafts, and fixed teeth are arranged on the side wall of the fixed clamping blocks 305 and correspond to the fixed clamping teeth 306, and the connecting mode of the fixed clamping teeth 306 and the fixed teeth is meshing connection.

[0034] The working process of the prestressed anchor rod is as follows: when the prestressed anchor rod is used, the prestressed anchor rod is first inserted into the hole, when the anchor rod head 209 is extruded with the bottom of the hole, the anchor rod head 209 is driven to move in the inner cavity of the connecting anchor rod 1, the connecting plate 208 is driven to move upwards by the anchor rod head 209, the connecting plate 208 moves and drives the connecting sliding block 203 and the movable supporting plate 204 to move on the connecting sliding rail 202 through the connecting supporting rod 206, so that the movable supporting plate 204 abuts against the side wall of the preset hole, and then the fixing of the prestressed anchor rod is completed.

[0035] The movable connecting plate 301 is manually pressed downwards, so that the movable connecting plate 301 moves downwards on the outer wall of the connecting anchor rod 1 until the movable connecting plate 301 contacts the ground, in the process that the movable connecting plate 301 moves downwards on the outer wall of the connecting anchor rod 1, the fixed clamping blocks 305 are driven to rotate through the rotating connecting rods 304, and the fixed clamping blocks 305 and the fixed clamping teeth 306 are always in the meshing state under the action of the reset springs 307, so that the fixing between the movable connecting plate 301 and the ground is completed.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prestressed anchor rod comprising a spliced anchor rod (1), characterized in that: The inner cavity of the connecting anchor rod (1) is connected with a telescopic fixing structure (2), and the outer wall of the connecting anchor rod (1) is connected with a moving connecting plate structure (3). The telescopic fixing structure (2) comprises a fixed connecting plate (201) connected to the side wall of the inner cavity of the connecting anchor rod (1), the bottom of the fixed connecting plate (201) is connected with a plurality of connecting sliding rails (202), the side wall of the connecting sliding rail (202) is connected with a connecting sliding block (203), the side wall of the connecting sliding block (203) is connected with a moving supporting plate (204), the bottom of the connecting sliding block (203) is connected with a fixed connecting seat (205), the fixed connecting seat (205) is connected with a connecting supporting rod (206), the other end of the connecting supporting rod (206) is connected with a connecting connecting seat (207), the side wall of the connecting connecting seat (207) is connected with a connecting connecting plate (208), the bottom of the connecting connecting plate (208) and located in the inner cavity of the connecting anchor rod (1) is connected with an anchor rod head (209), and a plurality of connecting sliding grooves (210) are formed in the side wall of the anchor rod head (209).

2. A pre-stressed anchor rod as claimed in claim 1, wherein: The moving connecting plate structure (3) comprises a moving connecting plate (301) connected to the outer wall of the connecting anchor rod (1), the side wall of the moving connecting plate (301) is symmetrically connected with a limiting sliding block (302), the end face of the moving connecting plate (301) and located on both sides of the connecting anchor rod (1) is provided with a connecting support (303) in a pair of groups, the connecting support (303) is connected with a rotating connecting rod (304), one end of the rotating connecting rod (304) is connected with a fixed clamping block (305), the outer wall of the connecting anchor rod (1) and corresponding to the fixed clamping block (305) is provided with a fixed clamping tooth (306), and the rotating connecting rod (304) and the moving connecting plate (301) are connected with a return spring (307).

3. A pre-stressed anchor rod as claimed in claim 2, wherein: The connecting sliding block (203) and the connecting sliding rail (202) are connected in a sliding manner.

4. A pre-stressed anchor rod as claimed in claim 2, wherein: The side wall of the connecting anchor rod (1) and corresponding to the moving supporting plate (204) is provided with a connecting groove, and the moving supporting plate (204) and the connecting groove are matched in a clearance fit manner.

5. A pre-stressed anchor rod as claimed in claim 2, wherein: The fixed connecting seat (205) and the connecting supporting rod (206) are connected through a rotating shaft, and the connecting supporting rod (206) and the connecting connecting seat (207) are connected through a rotating shaft.

6. A pre-stressed anchor rod as claimed in claim 2, wherein: The inner wall of the connecting anchor rod (1) and corresponding to the connecting sliding groove (210) is provided with a sliding rail, and the connecting sliding groove (210) and the sliding rail are connected in a sliding manner.

7. A pre-stressed anchor rod as claimed in claim 2, wherein: The outer wall of the connecting anchor rod (1) and corresponding to the limiting sliding block (302) is provided with a sliding groove, and the limiting sliding block (302) and the sliding groove are connected in a sliding manner, and the connecting support (303) and the rotating connecting rod (304) are connected through a rotating shaft.

8. A pre-stressed anchor rod as claimed in claim 2, wherein: The side wall of the fixed clamping block (305) is provided with a fixed tooth corresponding to the fixed clamping tooth (306), and the fixed clamping tooth (306) is connected with the fixed tooth in a meshing connection mode.

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