Quick connecting device for hollow grouting anchor cable

Abstract

The utility model discloses a hollow grouting anchor cable quick connecting device, relates to the field of grouting equipment, and adopts the technical scheme that the hollow grouting anchor cable quick connecting device comprises a grouting anchor cable and a connecting joint inserted with the grouting anchor cable, the grouting anchor cable is formed by stranding steel stranded wires by taking a grouting pipe as a cable core, and the connecting joint comprises a guide sleeve inserted with the grouting anchor cable; the end, away from the grouting anchor cable, of the guide sleeve is connected with an adapter. An L-shaped grouting channel is formed in the adapter, one end of the grouting channel communicates with a grouting pipe of the grouting anchor cable, and the other end of the grouting channel extends to the side wall of the end and communicates with a grouting connector of the grouting pump. An inserting pipe is arranged on the side wall of the end, and the adapter is connected with a grouting connector of the grouting pump in an inserting mode through the inserting pipe. The grouting anchor cable has the advantages that manufacturing cost of the grouting anchor cable is saved, grouting construction is convenient, efficiency is high, and the grouting anchor cable is safe and reliable, and particularly, the roof anchor cable can be conveniently grouted without climbing operation.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment, and in particular to a quick connection device for hollow grouting anchor cables. Background Technology

[0002] As mining depths increase, the challenges of supporting complex rock formations, such as those in loose and fractured areas and soft rock tunnels, become increasingly prominent. As a result, anchor cable support technology has been widely adopted. Its principle combines anchor cable support with grouting reinforcement, providing active support while improving the characteristics of the tunnel strata, thereby enhancing the strata's own bearing capacity.

[0003] When using chemical materials in conjunction with hollow grouting anchor cables for anchoring construction, the anchor cables are specially treated at the factory. Usually, one end of the grouting anchor cable needs to be equipped with a KJ10 quick connector or a threaded connector (both internal and external threads). Because of the need to manufacture connectors, not only does it increase the production cost of grouting anchor cables, but it also reduces production efficiency. On-site use requires the use of matching connectors for plug-in or threaded connections, which is especially inconvenient in the construction of grouting anchor cables in the roof slab. Construction workers need to stand on the construction platform to make connections, which is repetitive, tedious, inefficient, and unsafe due to working at height. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a quick connection device for hollow grouting anchor cables.

[0005] The technical solution includes a grouting anchor cable and a connecting joint that is inserted into the grouting anchor cable. The grouting anchor cable is made of steel strands twisted with a grouting pipe as the core. The connecting joint includes a guide sleeve that is inserted into the grouting anchor cable. An adapter is connected to one end of the guide sleeve away from the grouting anchor cable.

[0006] The adapter has an "L"-shaped grouting channel inside. One end of the grouting channel is connected to the grouting pipe of the grouting anchor cable, and the other end extends to the side wall of the adapter and is connected to the grouting joint of the grouting pump.

[0007] The adapter is provided with a plug pipe on its side wall, and the adapter is connected to the grouting joint of the grouting pump through the plug pipe.

[0008] Preferably, a hollow stud is fixedly provided on the side wall of the adapter, the stud is in communication with the grouting channel, and the insertion pipe is threadedly connected to the stud;

[0009] The insertion tube includes a nut that is threadedly connected to the stud, and a sleeve is provided on the nut. The sleeve is inserted into the grouting joint of the grouting pump.

[0010] Preferably, two through holes are provided on the side wall of the sleeve, and a U-shaped pin is inserted into the through holes.

[0011] Preferably, the end of the guide sleeve furthest from the grouting anchor cable is provided with an internal thread;

[0012] The adapter is fixedly provided with a boss, and the boss is provided with an external thread. The adapter is detachably connected to the guide sleeve through the external thread.

[0013] Preferably, a sealing ring is also provided on the protrusion, and the sealing ring abuts against the grouting pipe of the grouting anchor cable.

[0014] Preferably, a plug is fixedly provided at one end of the adapter away from the guide sleeve, and the adapter is connected to the anchor drilling rig through the plug.

[0015] The beneficial effects of the technical solution provided by this utility model embodiment are: saving the manufacturing cost of grouting anchor cables, grouting construction is convenient, efficient and safe, especially the top slab anchor cables can be grouted conveniently without climbing to heights. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the adapter structure according to an embodiment of the present utility model.

[0019] The attached diagram is labeled as follows: 1. Grouting anchor cable; 2. Connecting joint; 3. Guide sleeve; 4. Adapter; 5. Grouting channel; 6. Insertion pipe; 7. Nut; 8. Sleeve; 9. Insertion hole; 10. Boss; 11. Sealing ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0021] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] See Figures 1 to 3 This utility model provides a quick connection device for hollow grouting anchor cables, including a grouting anchor cable 1 and a connecting joint 2 that is inserted into the grouting anchor cable 1. The grouting anchor cable 1 is made of steel strands twisted with a grouting pipe as the core. The connecting joint 2 includes a guide sleeve 3 that is inserted into the grouting anchor cable 1. An adapter 4 is connected to one end of the guide sleeve 3 away from the grouting anchor cable 1.

[0026] The adapter 4 has an "L"-shaped grouting channel 5. One end of the grouting channel 5 is connected to the grouting pipe of the grouting anchor cable 1, and the other end extends to the side wall of the adapter 4 and is connected to the grouting joint of the grouting pump.

[0027] The adapter 4 is provided with a plug pipe 6 on its side wall, and the adapter 4 is plugged into the grouting joint of the grouting pump through the plug pipe 6.

[0028] A hollow stud is fixedly installed on the side wall of the adapter 4. The stud is connected to the grouting channel 5, and the insertion pipe 6 is threadedly connected to the stud.

[0029] The insertion pipe 6 includes a nut 7 that is threadedly connected to the stud, and a sleeve 8 is provided on the nut 7. The sleeve 8 is inserted into the grouting joint of the grouting pump.

[0030] Two through-holes 9 are opened on the side wall of the sleeve 8, and a U-shaped pin is inserted into the through-hole 9.

[0031] The grouting connector uses a prefabricated quick-connect connector with a slot on its side wall. When the grouting connector is inserted into the sleeve 8, the pin is inserted into the socket 9 and engages with the slot.

[0032] The end of the guide sleeve 3 away from the grouting anchor cable 1 is provided with an internal thread;

[0033] The adapter 4 is fixedly provided with a boss 10, and the boss 10 is provided with an external thread. The adapter 4 is detachably connected to the guide sleeve 3 through the external thread.

[0034] A sealing ring 11 is also provided on the boss 10, and the sealing ring 11 abuts against the grouting pipe of the grouting anchor cable 1.

[0035] The sealing ring 11 and the boss 10 are detachable. When the next grouting construction is carried out, only the new sealing ring 11 needs to be replaced, which reduces the production and use costs.

[0036] A plug is fixedly installed at one end of the adapter 4 away from the guide sleeve 3, and the adapter 4 is connected to the anchor drilling machine through the plug.

[0037] When using this utility model, firstly, a sealing ring is set at a position about 1 meter away from the hole of the grouting anchor cable 1. Then, the grouting anchor cable 1 is inserted into the guide sleeve 3 so that the grouting channel 5 on the adapter 4 is connected to the grouting pipe, and the grouting connector of the grouting pump is connected to the adapter 4.

[0038] Next, install the adapter 4 on the anchor drilling rig, use the anchor drilling rig to hold the adapter 4 in place, and after the anchor is firmly held in place by the adapter 4, use the grouting pump to grout the grouting anchor cable 1. After reaching the designed grouting volume or grouting pressure, stop grouting and rinse the device with a special cleaning agent or clean water.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hollow grouting anchor cable quick connecting device, comprising a grouting anchor cable (1) and a connecting joint (2) inserted with the grouting anchor cable (1), the grouting anchor cable (1) is twisted by steel strands with grouting pipes as cable cores, characterized in that, The connecting joint (2) comprises a guide sleeve (3) inserted with the grouting anchor cable (1), and an adapter (4) connected to one end of the guide sleeve (3) away from the grouting anchor cable (1); The adapter (4) is provided with an "L"-shaped grouting channel (5) inside, one end of the grouting channel (5) is communicated with the grouting pipe of the grouting anchor cable (1), and the other end extends to the side wall of the adapter (4) and is communicated with the grouting joint of the grouting pump; The side wall of the adapter (4) is provided with an insertion pipe (6), and the adapter (4) is inserted with the grouting joint of the grouting pump through the insertion pipe (6).

2. The quick connection device for hollow grouting anchor cable according to claim 1, characterized in that, The side wall of the adapter (4) is fixedly provided with a hollow stud, the stud is communicated with the grouting channel (5), and the insertion pipe (6) is threadedly connected with the stud; The insertion pipe (6) comprises a nut (7) threadedly connected with the stud, a sleeve (8) is arranged on the nut (7), and the sleeve (8) is inserted with the grouting joint of the grouting pump.

3. The quick connection device for hollow grouting anchor cable according to claim 2, characterized in that, Two through insertion holes (9) are arranged on the side wall of the sleeve (8), and a U-shaped bolt is inserted in the insertion holes (9).

4. The quick connection device for hollow grouting anchor cable according to claim 1, characterized in that, One end of the guide sleeve (3) away from the grouting anchor cable (1) is provided with an internal thread; The adapter (4) is fixedly provided with a boss (10), the boss (10) is provided with an external thread, and the adapter (4) is detachably connected with the internal thread of the guide sleeve (3) through the external thread.

5. The quick connection device for hollow grouting anchor cable according to claim 4, characterized in that, The boss (10) is further provided with a sealing rubber ring (11), and the sealing rubber ring (11) abuts against the grouting pipe of the grouting anchor cable (1).

6. The quick connection device for hollow grouting anchor cable according to claim 1, characterized in that, One end of the adapter (4) away from the guide sleeve (3) is fixedly provided with an insertion column, and the adapter (4) is connected with the anchor rod drilling machine through the insertion column.

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