Anchor rod grouting joint structure

Abstract

The utility model relates to the technical field of grouting connectors, and provides an anchor rod grouting connector structure which comprises an anchor rod body, a first connecting pipe and a first connecting anchor rod, the inner sides of the two ends of the first connecting pipe are in threaded connection with the anchor rod body and one end of the first connecting anchor rod respectively, and a transverse pin is arranged in the first connecting pipe in the radial direction. And the first connecting pipe is internally provided with a ball which moves between the transverse pin and the end opening of the first connecting anchor rod in a limiting mode, circulation during grouting and leakage-proof plugging after grouting are completed are achieved, dismounting and cleaning are convenient, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting joints, in particular to an anchor rod grouting joint structure. Background Art

[0002] The grouting joint is a connection structure used for anchor grouting. When grouting the anchor, a hose or a connecting sleeve is usually used to connect to the tail of the anchor, and a ball valve is connected in between. After the grouting operation is completed, the ball valve needs to be closed and this part of the structure needs to be removed after a period of time. However, the ball valve is inconvenient to disassemble and clean, and it is easy to be incompletely cleaned, which affects the next use. The ball valve is also easily damaged, which will also increase maintenance costs and may affect the service life of the joint. Utility Model Content

[0003] The utility model aims to provide an anchor rod grouting joint structure, which solves the above technical problems, is easy to disassemble and clean, and reduces maintenance costs.

[0004] The embodiment of the utility model is realized through the following technical scheme: an anchor grouting joint structure, including an anchor body, a first connecting tube and a first connecting anchor, the inner sides of the two ends of the first connecting tube are respectively threadedly connected to the anchor body and one end of the first connecting anchor, a cross pin is radially arranged inside the first connecting tube, and a ball is provided in the first connecting tube to limit movement between the cross pin and the first connecting anchor port.

[0005] An anchor grouting joint structure also includes a second connecting pipe and a second connecting anchor. The inner sides of both ends of the second connecting pipe are respectively threadedly connected to the other end of the first connecting anchor and one end of the second connecting anchor, and the other end of the second connecting anchor is connected to a hose.

[0006] Furthermore, the inner and outer diameters of the first connecting tube and the second connecting tube are the same, and the inner and outer diameters of the first connecting anchor rod and the second connecting anchor rod are the same.

[0007] Furthermore, the size of the ball is larger than the inner diameter of the first connecting anchor rod and smaller than the inner diameter of the first connecting tube, and a connecting gap is left between the ball and the inner wall of the first connecting anchor rod.

[0008] Furthermore, a limit retaining ring is fixed on the first connecting anchor rod.

[0009] Furthermore, one end of the anchor rod body is connected with a locking anchor nut and a sealing ring in sequence, and the sealing ring abuts between the first connecting tube and the locking anchor nut.

[0010] The utility model has at least the following advantages and beneficial effects: by radially arranging a cross pin inside the first connecting tube and arranging a ball inside the first connecting tube that limits movement between the cross pin and the first connecting anchor rod port, circulation during grouting and leak-proof sealing after grouting are achieved, disassembly and cleaning are facilitated, and maintenance costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 A structural schematic diagram of an anchor grouting joint structure provided by the utility model;

[0013] Figure 2 A cross-sectional view of a first connecting pipe and a first connecting anchor in an anchor grouting joint structure provided by the utility model;

[0014] Figure 3 A cross-sectional view of a second connecting pipe and a second connecting anchor in an anchor grouting joint structure provided by the utility model;

[0015] Icons: 1-anchor body, 2-first connecting pipe, 20-connecting gap, 21-cross pin, 3-first connecting anchor, 31-limiting retaining ring, 4-second connecting pipe, 5-second connecting anchor, 6-ball, 7-hose, 8-locking anchor nut, 9-sealing ring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1

[0019] like Figure 1 , Figure 2As shown, in this embodiment, a bolt grouting joint structure is mainly disclosed, and its main structure includes an anchor body 1, a first connecting pipe 2 and a first connecting anchor 3. The inner sides of both ends of the first connecting pipe 2 are respectively threadedly connected to the anchor body 1 and one end of the first connecting anchor 3. A cross pin 21 is radially arranged inside the first connecting pipe 2. A ball 6 is provided in the first connecting pipe 2 to limit movement between the cross pin 21 and the port of the first connecting anchor 3. It should be noted that there should be space for the ball 6 to move linearly between the cross pin 21 and the port of the first connecting anchor 3. When the slurry flows from the first connecting anchor 3 to the anchor body When grouting is performed in the borehole, the ball 6 sealing the port of the first connecting anchor rod 3 is pushed open under the pressure of the grouting slurry, and the cross pin 21 limits the movable range of the ball 6 to prevent the ball 6 from entering the anchor rod body 1. When the grouting pressure reaches a predetermined value, the grouting is stopped. At this time, the ball 6 moves back and seals the port of the first connecting anchor rod 3 under the pressure of the slurry in the borehole to achieve mechanical sealing and prevent the slurry from flowing back and overflowing. After waiting for a predetermined time, the first connecting pipe 2 and the first connecting anchor rod 3 are disassembled to complete the grouting operation. At this time, they can be easily cleaned and reused, thereby reducing maintenance costs.

[0020] Furthermore, in a specific implementation, the size of the above-mentioned ball 6 provided in the embodiment of the utility model is larger than the inner diameter of the first connecting anchor rod 3, and smaller than the inner diameter of the first connecting tube 2. A connecting gap 20 is left between the ball 6 and the inner wall of the first connecting anchor rod 3, which can ensure the movement of the ball 6 in the first connecting tube 2, effectively limit the position of the ball 6, and ensure that the slurry passes through the first connecting tube 2 smoothly, thereby improving the stability of the overall structure.

[0021] Furthermore, in a specific implementation, a limiting retaining ring 31 is fixed on the above-mentioned first connecting anchor rod 3 provided in the embodiment of the utility model, which can not only limit the position of the subsequent connection grouting pipe, but also limit the position of the first connecting anchor rod 3 screwed into the first connecting pipe 2, thereby realizing the limiting effect in two directions and ensuring the safety and stability of the connection.

[0022] Furthermore, in a specific implementation, one end of the anchor rod body 1 provided in the embodiment of the utility model is connected in sequence with a locking anchor nut 8 and a sealing ring 9, and the sealing ring 9 abuts between the first connecting tube 2 and the locking anchor nut 8 to prevent leakage and loosening, thereby improving the durability of the structure.

[0023] Embodiment 2

[0024] like Figure 3As shown, in this embodiment, the main structure is exactly the same as that of the first embodiment, and the difference is that the grouting structure also includes a second connecting pipe 4 and a second connecting anchor rod 5. The inner sides of the two ends of the second connecting pipe 4 are respectively threadedly connected to the other end of the first connecting anchor rod 3 and one end of the second connecting anchor rod 5. The other end of the second connecting anchor rod 5 is connected to a hose 7. The hose 7 is connected to the grouting material. The second connecting pipe 4 is connected to the first connecting anchor rod 3 to realize the grouting operation, which can effectively avoid the frequent renewal of the end hose 7 due to the reduction of the connection sealing due to fatigue use, thereby improving the durability of the connection.

[0025] Furthermore, in a specific implementation, the inner and outer diameters of the first connecting tube 2 and the second connecting tube 4 provided in the embodiment of the utility model are the same, and the inner and outer diameters of the first connecting anchor rod 3 and the second connecting anchor rod 5 are the same, which can reduce the types of parts and simplify the structural design and manufacturing process.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anchor grouting joint structure, It is characterized in that The invention comprises an anchor rod body (1), a first connecting tube (2) and a first connecting anchor rod (3), wherein the inner sides of both ends of the first connecting tube (2) are respectively threadedly connected to the anchor rod body (1) and one end of the first connecting anchor rod (3), a transverse pin (21) is radially arranged inside the first connecting tube (2), and a ball (6) is arranged inside the first connecting tube (2) and is limitedly movable between the transverse pin (21) and the port of the first connecting anchor rod (3).

2. An anchor grouting joint structure as claimed in claim 1, It is characterized in that It also comprises a second connecting pipe (4) and a second connecting anchor rod (5), wherein the inner sides of both ends of the second connecting pipe (4) are respectively threadedly connected to the other end of the first connecting anchor rod (3) and one end of the second connecting anchor rod (5), and the other end of the second connecting anchor rod (5) is connected to a hose (7).

3. An anchor grouting joint structure as claimed in claim 2, It is characterized in that The first connecting tube (2) and the second connecting tube (4) have the same inner and outer diameters, and the first connecting anchor rod (3) and the second connecting anchor rod (5) have the same inner and outer diameters.

4. An anchor grouting joint structure as claimed in claim 1, It is characterized in that The size of the ball (6) is larger than the inner diameter of the first connecting anchor rod (3) and smaller than the inner diameter of the first connecting tube (2); a connecting gap (20) is left between the ball (6) and the inner wall of the first connecting anchor rod (3).

5. An anchor grouting joint structure as claimed in claim 1, It is characterized in that A limit stop ring (31) is fixed on the first connecting anchor rod (3).

6. An anchor grouting joint structure according to claim 1, It is characterized in that One end of the anchor rod body (1) is connected in sequence to a locking anchor nut (8) and a sealing ring (9), and the sealing ring (9) abuts between the first connecting pipe (2) and the locking anchor nut (8).

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