Connecting device for fiber anchor rod and steel bar anchor rod

Abstract

The utility model relates to the technical field of pipe fittings, in particular to a fiber anchor rod and steel bar anchor rod connecting device which comprises a connecting sleeve, one end of the connecting sleeve is connected with a steel bar anchor rod in a threaded mode, the other end of the connecting sleeve is connected with a fiber anchor rod in an inserted mode, epoxy resin glue is poured in the connecting sleeve, and the epoxy resin glue wraps the fiber anchor rod. A reserved groove is formed in the surface of the connecting sleeve, a clamping block is connected to the surface of the reserved groove in an inserted mode, a push ring is arranged in the reserved groove in a sleeved mode, and the push ring pushes the clamping block to clamp the fiber anchor rod; the connecting structure has the advantages that one end of the connecting sleeve is in threaded connection with the steel bar anchor rod, the other end of the connecting sleeve is in inserted connection with the fiber anchor rod, epoxy resin glue is poured for wrapping and fixing, and reliable connection between the fiber anchor rod and the steel bar anchor rod is achieved. According to the connecting mode, the transition effect of the connecting sleeve is fully utilized, and the difficulty of direct connection of two anchor rods made of different materials is overcome.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings, specifically a connection device for fiber anchor rods and steel anchor rods. Background Technology

[0002] In civil engineering and geotechnical engineering, anchor bolts are widely used as an important support structure in projects such as slope stabilization, tunnel support, and foundation pit reinforcement. Traditional anchor bolt connection methods often have some limitations, such as:

[0003] Connecting anchors of different materials is difficult: fiber anchors have advantages such as light weight and corrosion resistance, while steel anchors have higher strength and load-bearing capacity. In practical engineering, it is sometimes necessary to connect fiber anchors and steel anchors to fully utilize their respective advantages. However, due to the differences in materials and structures between fiber anchors and steel anchors, traditional connection methods are difficult to achieve a reliable connection between them.

[0004] Insufficient sealing at anchor joints: Poor sealing at anchor joints can allow groundwater and mud to seep in, affecting the anchoring effect and service life of the anchors. This is especially critical in projects with high waterproofing requirements, such as underground tunnels and basements.

[0005] Fiber anchors are prone to shaking: During the pouring of bonding adhesive (such as epoxy resin), fiber anchors are prone to shaking due to the lack of effective fixing and limiting measures, resulting in uneven distribution of adhesive, affecting the connection quality and the load-bearing capacity of the anchors.

[0006] Rebar anchors are not replaceable: Traditional anchor connections are usually fixed, making them difficult to disassemble and replace once connected. In actual projects, design changes, construction errors, or other reasons may necessitate replacing rebar anchors of different lengths, a requirement that traditional connection methods cannot meet. Utility Model Content

[0007] The purpose of this invention is to provide a connection device for fiber anchor bolts and steel anchor bolts to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fiber anchor rod and a rebar anchor rod connection device, comprising a connecting sleeve, one end of which is screwed with a rebar anchor rod, and the other end of which is inserted with a fiber anchor rod. Epoxy resin is poured into the inside of the connecting sleeve, and the epoxy resin wraps around the fiber anchor rod. A reserved groove is provided on the surface of the connecting sleeve, and a clamping block is inserted into the surface of the reserved groove. A push ring is sleeved inside the reserved groove, and the push ring pushes the clamping block to clamp the fiber anchor rod.

[0009] Preferably, one end of the connecting sleeve is provided with a screw interface, and the other end of the connecting sleeve is provided with an insertion interface. The diameter of the insertion interface is larger than that of the screw interface. The steel bar anchor rod is screwed into the screw interface, and the fiber anchor rod is inserted into the insertion interface.

[0010] Preferably, a sealing cover is sleeved on the rod body of the fiber anchor rod. The sealing cover is a "convex" shaped circular ring plate, and one end of the sealing cover is inserted and fixed in the insertion interface.

[0011] Preferably, two glue liquid inlets and outlets are arranged on the surface of the sealing cover. The two glue liquid inlets and outlets are symmetrically distributed about the inner ring opening of the sealing cover. A sealing ring is fixed at the inner ring opening of the sealing cover, and the sealing ring is clamped between the fiber anchor rod and the sealing cover.

[0012] Preferably, the reserved groove is an annular groove. A plurality of insertion openings are arranged on the surface of the reserved groove. The clamping blocks and the insertion openings correspond one by one. The clamping blocks are inserted into the insertion openings. The height of the clamping block is greater than the depth of the insertion opening. One end of the clamping block is provided with an inclined surface, and the other end of the clamping block is provided with a notch. The notch is a "U" shaped groove. An elastic rubber belt is fixed on the surface of the notch, and both ends of the elastic rubber belt are respectively fixed on two parallel side walls of the insertion opening.

[0013] Preferably, a rubber ring is sleeved and fixed inside the reserved groove. There are two rubber rings, and the two rubber rings are symmetrically distributed about the insertion opening. A rubber cover is fixed between one end of the pushing ring and the side wall of the reserved groove. Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The fiber anchor rod and steel bar anchor rod connection device proposed by the present utility model realizes the reliable connection between the fiber anchor rod and the steel bar anchor rod by screwing the steel bar anchor rod at one end of the connecting sleeve, inserting the fiber anchor rod at the other end, and pouring epoxy resin glue for wrapping and fixing. This connection method makes full use of the transition function of the connecting sleeve and overcomes the difficulty of directly connecting two different material anchor rods.

[0015] A sealing cover is sleeved on the rod body of the fiber anchor rod. The sealing cover is a "convex" shaped circular ring plate, and one end of it is inserted and fixed in the insertion interface. A sealing ring is fixed at the inner ring opening of the sealing cover, and the sealing ring is clamped between the fiber anchor rod and the sealing cover. When pouring epoxy resin glue, the sealing cover and the sealing ring can effectively prevent the glue liquid from overflowing, and at the same time prevent groundwater, mud, etc. from infiltrating into the connection part, improving the sealing performance of the connection and extending the service life of the anchor rod.

[0016] A pre-drilled groove is made on the surface of the connecting sleeve, and a clamping block is inserted into the surface of the groove, with a push ring fitted inside. When the fiber anchor is inserted into the insertion joint but before epoxy resin is poured, the push ring is moved to push the clamping block along the inclined surface. The clamping block retracts into the insertion joint and stretches the rubber band, which is then clamped between the clamping block and the fiber anchor, achieving pre-limiting of the fiber anchor. This prevents the fiber anchor from shaking during epoxy resin pouring, ensures uniform resin distribution, and improves connection quality and the load-bearing capacity of the anchor.

[0017] The rebar anchor rods are connected to the connecting sleeves via bolts, making them detachable. Depending on the actual engineering needs, the connected rebar anchor rods can be easily removed and replaced with rebar anchor rods of different lengths. This satisfies the need to adjust the length of the rebar anchor rods in case of design changes or construction errors, improving the flexibility and applicability of the device. Attached Figure Description

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

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0023] Figure 6 This is a schematic diagram of the clamping block structure of this utility model.

[0024] In the diagram: 1. Connecting sleeve; 2. Threaded interface; 3. Rebar anchor; 4. Insert interface; 5. Fiber anchor; 6. Sealing cap; 7. Adhesive inlet / outlet; 8. Reserved groove; 9. Insert; 10. Clamping block; 11. Notched groove; 12. Rubber band; 13. Push ring; 14. Rubber ring; 15. Rubber cover; 16. Sealing ring. Detailed Implementation

[0025] In order to clearly and completely describe the purpose and technical solution of the present utility model and make its advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of them, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] Please refer to Figures 1-6 , the present utility model provides a technical solution: a connecting device for a fiber bolt and a steel bar bolt, including a connecting sleeve 1. One end of the connecting sleeve 1 is screwed with a steel bar bolt 3, and the other end of the connecting sleeve 1 is inserted with a fiber bolt 5. One end of the connecting sleeve 1 is provided with a screw interface 2, and the other end of the connecting sleeve 1 is provided with an insertion interface 4. The diameter of the insertion interface 4 is larger than that of the screw interface 2. The steel bar bolt 3 is screwed in the screw interface 2, and the fiber bolt 5 is inserted in the insertion interface 4; epoxy resin glue is poured inside the connecting sleeve 1, and the epoxy resin glue wraps the fiber bolt 5. A sealing cover 6 is sleeved on the rod body of the fiber bolt 5. The sealing cover 6 is a "convex" - shaped circular ring plate, and one end of the sealing cover 6 is inserted and fixed in the insertion interface 4; two glue liquid inlets and outlets 7 are arranged on the surface of the sealing cover 6, and the two glue liquid inlets and outlets 7 are symmetrically distributed about the inner ring opening of the sealing cover 6. An inner ring seal 16 is fixed at the inner ring opening of the sealing cover 6, and the inner ring seal 16 is clamped between the fiber bolt 5 and the sealing cover 6. After screwing the steel bar bolt 3 into the screw interface 2, the fiber bolt 5 is inserted into the insertion interface 4 after passing through the sealing cover 6. The inner ring seal 16 is clamped between the fiber bolt 5 and the sealing cover 6 to improve the sealing performance at the end of the insertion interface 4. The epoxy resin glue liquid is injected into the insertion interface 4 through one glue liquid inlet and outlet 7. When the glue liquid overflows from the other glue liquid inlet and outlet, the glue injection can be stopped, completing the connection of the steel bar bolt 3 and the fiber bolt 5 through the connecting sleeve 1. The steel bar bolt 3 is detachable, and the steel bar bolt 3 can be removed according to needs and different - length steel bar bolts 3 can be screwed in again.

[0027] A pre-drilled groove 8 is formed on the surface of the connecting sleeve 1. A clamping block 10 is inserted into the surface of the pre-drilled groove 8. A push ring 13 is fitted inside the pre-drilled groove 8. The push ring 13 pushes the clamping block 10 to clamp the fiber anchor rod 5. The pre-drilled groove 8 is annular. Multiple insertion ports 9 are formed on the surface of the pre-drilled groove 8. The clamping block 10 corresponds to each insertion port 9. The clamping block 10 is inserted into the insertion port 9. The height of the clamping block 10 is greater than the depth of the insertion port 9. One end of the clamping block 10 is provided with a bevel. The other end of the clamping block 10 is provided with a notch 11. The notch 11 is a "U"-shaped groove. A rubber band 12 is fixed to the surface of the notch 11. The two ends of the rubber band 12 are respectively fixed to the insertion ports. On the two parallel sidewalls of the insertion port 9; a rubber ring 14 is fixed inside the reserved groove 8. There are two rubber rings 14, which are symmetrically distributed about the insertion port 9. A rubber cover 15 is fixed between one end of the push ring 13 and the sidewall of the reserved groove 8. When the fiber anchor rod 5 is inserted into the insertion port 4 but before the epoxy resin is poured, the push ring 13 is pushed along the inclined surface to push the clamping block 10. The clamping block 10 retracts into the insertion port 9, and the clamping block 10 stretches the rubber band 12 to deform. The rubber band 12 is clamped between the clamping block 10 and the fiber anchor rod 5, so as to achieve the pre-limiting of the fiber anchor rod 5 and avoid the fiber anchor rod 5 from shaking when the epoxy resin is poured.

[0028] The method of using the fiber anchor rod and rebar anchor rod connection device is as follows: Screw the rebar anchor rod 3 into the threaded interface 2 at one end of the connecting sleeve 1, ensuring a secure connection. Place the sealing cap 6 (a U-shaped circular plate) onto the fiber anchor rod 5, so that the sealing ring 16 is located between the fiber anchor rod 5 and the sealing cap 6. Insert the fiber anchor rod 5 with the sealing cap 6 into the insertion interface 4 at the other end of the connecting sleeve 1. While the fiber anchor rod 5 is inserted into the insertion interface 4 and before epoxy resin is poured, move the push ring 13. The push ring 13 pushes the clamping block 10 along the inclined surface at one end of the clamping block 10. Since the height of the clamping block 10 is greater than the depth of the insertion port 9, the clamping block 10 will retract into the insertion port 9. Simultaneously, the rubber band 12 in the notch 11 is stretched and deformed. The rubber band 12 is clamped between the clamping block 10 and the fiber anchor rod 5, achieving pre-limiting of the fiber anchor rod 5 and preventing the fiber anchor rod 5 from shaking during subsequent epoxy resin pouring. Epoxy resin is injected into the insertion interface 4 through one of the inlet / outlet 7 on the surface of the sealing cap 6. The injection is stopped when the resin overflows from the other inlet / outlet 7. At this point, the epoxy resin coats the fiber anchor rod 5, completing the connection between the steel anchor rod 3 and the fiber anchor rod 5 via the connecting sleeve 1. The sealing cap 6 is inserted and fixed in the insertion interface 4, and the sealing ring 16 is clamped between the fiber anchor rod 5 and the sealing cap 6, improving the sealing performance at the end of the insertion interface 4. If necessary, the connected steel anchor rod 3 can be removed, and steel anchor rods of different lengths can be screwed in to meet different usage requirements.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection device for fiber anchor bolts and steel anchor bolts, comprising a connecting sleeve (1), characterized in that: One end of the connecting sleeve (1) is screwed with a steel bar anchor rod (3), and the other end of the connecting sleeve (1) is inserted with a fiber anchor rod (5). Epoxy resin glue is poured inside the connecting sleeve (1), and the epoxy resin glue wraps the fiber anchor rod (5). A reserved groove (8) is formed on the surface of the connecting sleeve (1), a clamping block (10) is inserted on the surface of the reserved groove (8), a pushing ring (13) is sleeved inside the reserved groove (8), and the pushing ring (13) pushes the clamping block (10) to clamp the fiber anchor rod (5).

2. The fiber anchor bolt and steel bar anchor bolt connection device according to claim 1, characterized in that: One end of the connecting sleeve (1) is provided with a screw interface (2), and the other end of the connecting sleeve (1) is provided with an insertion interface (4). The caliber of the insertion interface (4) is larger than that of the screw interface (2). The steel bar anchor rod (3) is screwed in the screw interface (2), and the fiber anchor rod (5) is inserted in the insertion interface (4).

3. The fiber anchor bolt and steel bar anchor bolt connection device according to claim 1, characterized in that: A sealing cover (6) is sleeved on the rod body of the fiber anchor rod (5). The sealing cover (6) is a "convex"-shaped circular ring plate, and one end of the sealing cover (6) is inserted and fixed in the insertion interface (4).

4. The fiber anchor bolt and steel bar anchor bolt connection device according to claim 3, characterized in that: Two glue liquid inlets and outlets (7) are formed on the surface of the sealing cover (6). The two glue liquid inlets and outlets (7) are symmetrically distributed about the inner ring opening of the sealing cover (6). A sealing ring (16) is fixed at the inner ring opening of the sealing cover (6), and the sealing ring (16) is clamped between the fiber anchor rod (5) and the sealing cover (6).

5. The fiber anchor bolt and steel bar anchor bolt connection device according to claim 1, characterized in that: The reserved groove (8) is an annular groove. A plurality of insertion openings (9) are formed on the surface of the reserved groove (8). The clamping blocks (10) and the insertion openings (9) correspond to each other one by one. The clamping blocks (10) are inserted in the insertion openings (9). The height of the clamping blocks (10) is greater than the depth of the insertion openings (9). One end of the clamping block (10) is provided with an inclined surface, and the other end of the clamping block (10) is provided with a notch (11). The notch (11) is a "U"-shaped groove. An elastic rubber belt (12) is fixed on the surface of the notch (11), and the two ends of the elastic rubber belt (12) are respectively fixed on the two parallel side walls of the insertion opening (9).

6. The fiber anchor bolt and steel bar anchor bolt connection device according to claim 5, characterized in that: Two rubber rings (14) are sleeved and fixed inside the reserved groove (8). The two rubber rings (14) are symmetrically distributed about the insertion opening (9). A rubber cover (15) is fixed between one end of the pushing ring (13) and the side wall of the reserved groove (8).

Images