Rapid anchoring agent plugging device for roadway roof anchor rod drilling

By designing a quick-insertion device for anchoring agent consisting of a threaded base pipe, an extended pipe, and an end cap, the problem of device falling off during roadway roof operations was solved, achieving rapid, flexible insertion of anchoring agent and convenient operation.

CN224079160UActive Publication Date: 2026-04-03TIANCHEN COAL MINE OF ZAOZHUANG MINING GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing anchoring agent filling devices lack a support point when operating on the roof of roadways, making them prone to falling off, inconvenient to operate, and impractical.

Method used

A rapid insertion device for anchoring agent in roadway roof bolt drilling was designed. The first rod body is formed by a threaded connection of a base pipe, an extension pipe and an end, and is stably supported by a crossbar and a limiting component. It is then inserted rapidly using the principle of a syringe.

Benefits of technology

It enables rapid and flexible insertion of anchoring agent, is easy for operators to use, enhances the stability and practicality of the device, and reduces operational risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a roadway roof anchor rod drilling anchoring agent quick plugging device, which is characterized in that a foundation pipe is fixedly mounted above a connecting plate, the foundation pipe, a lengthening pipe and an end are connected in series to form a first rod body with consistent inner diameter, a cross rod is arranged on the lower side of the connecting plate, and the foundation rod, the lengthening rod and the connecting rod are connected in series to form a second rod body with consistent outer diameter; a supporting block is arranged on the upper side of the connecting rod, the outer diameter of the supporting block is slidably matched with the inner diameter of the first rod body, and limiting assemblies are arranged on the two sides of the round hole. By installing the cross rod, the connecting frame and the limiting assembly on the lower side of the connecting plate, an operator can hold the cross rod with the hand during use, operation such as taking and lifting of the stuffing device is facilitated after the stuffing device is combined, the operator can use the stuffing device conveniently, the overall practicability is high, meanwhile, the limiting assembly is overall detachable, and the practicability is high. And the cross rod is matched to perform double-end limitation on the positions of the foundation rod, the extension rod and the like, so that the practicability of the device is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of anchor bolt construction technology, specifically to a device for drilling and anchoring agent application for anchor bolts in roadway roof slabs. Background Technology

[0002] Before installing the anchor bolts, multiple anchoring agents need to be placed at the opening of the anchor bolt hole before the anchor bolt is inserted into the hole. However, due to the high working space of the tunnel roof and the soft nature of the anchoring agent, it is necessary for a person to stand on a ladder to insert it, which poses a high risk to the operation.

[0003] Patent No. CN215256263U discloses a rapid filling device for prestressed anchoring agent, including a base pipe, an end, and a piston rod. The piston rod includes a rod body, a piston located at the front end of the rod body, and a handle located at the rear end of the rod body. The front part of the rod body and the piston are inserted into the base pipe, and the piston is tightly fitted with the inner surface of the base pipe and moves back and forth under the push of the rod body. The end is screwed to the front end of the base pipe, and an extrusion hole is provided at the front end of the end. There are multiple extrusion holes, which are evenly distributed on the front end face of the end. Through the assembled structure, it can be applied to the needs of filling anchor holes of various depths with anchoring agent, thereby improving the filling efficiency of anchoring agent.

[0004] However, when using this technical solution, the base pipe and the extension pipe need to be inserted into the borehole. After insertion, the operator needs to push the piston rod to move. However, when drilling holes for the top of the tunnel, the filling device lacks a force-bearing point and is prone to falling downwards. Therefore, the operator needs to lift the vertical filling device. However, the filling device lacks a force-bearing structure for lifting, and its overall practicality is poor. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, this utility model aims to provide a quick-insertion device for anchoring agent in roadway roof bolt drilling, which has the advantages of flexible use and convenient operation.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-insertion device for anchoring agent in drilling holes for roadway roof anchor bolts, comprising a connecting plate, a base pipe fixedly installed above the connecting plate, an extension pipe threadedly connected to the upper side of the base pipe, an end connected to the upper side of the extension pipe, the base pipe, the extension pipe, and the end being connected in series to form a first rod with the same inner diameter, and a crossbar provided on the lower side of the connecting plate, the two sides of the crossbar being connected to the bottom of the connecting plate through connecting frames;

[0007] A base rod is fixedly installed below the connecting plate. An extension rod is threadedly connected to the upper side of the base rod. A connecting rod is threadedly connected to the upper side of the extension rod. The base rod, extension rod, and connecting rod are connected in series to form a second rod with the same outer diameter. A support block is provided on the upper side of the connecting rod. The outer diameter of the support block slides and matches the inner diameter of the first rod. A circular hole with the same inner diameter as the base tube is opened on the connecting plate. Limiting components are provided on both sides of the circular hole.

[0008] As a preferred embodiment of the above solution, the limiting component includes two opposing base blocks, each of which is connected to the bottom of the connecting plate by screws. The base blocks extend upward to form an arc-shaped piece, and the upper side of the arc-shaped piece extends horizontally inward to form a limiting piece. The limiting piece has a semi-circular latch, and the two semi-circular latches can just hold the second rod in place and ensure that the second rod can slide freely.

[0009] A further preferred embodiment is that the middle part of the crossbar is provided with an insertion hole for the second rod to slide through, and the top center of the support block is recessed downward to form an arc-shaped groove.

[0010] A further preferred embodiment is that a disk is provided on the lower side of the base rod, and the outer diameter of the disk is larger than the inner diameter of the insertion hole.

[0011] More preferably, rubber protrusions are evenly distributed on both sides of the connecting plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. The base pipe, extension pipe, and end are connected by threaded connection to form the first rod body. The base rod, extension rod, and connecting rod are connected by threaded connection within the first rod body to form the second rod body. The second rod body is placed within the first rod body. The anchoring agent is quickly inserted using the principle of a syringe. During use, the operator can adjust the length of the inserter according to the actual needs. The overall use is flexible.

[0014] 2. By installing a crossbar, connecting frame, and limiting component on the lower side of the connecting plate, the operator can hold the crossbar by hand during use, which is convenient for picking up and lifting the inserter after the inserter assembly is completed. The operator can use it easily and the overall practicality is strong. At the same time, the limiting component is detachable and can be used with the crossbar to limit the second rod at both ends, further increasing the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is an exploded view of the first rod of this utility model.

[0017] Figure 3This is a perspective view of the first rod of this utility model.

[0018] Figure 4 This is an exploded view of the second rod of this utility model.

[0019] Figure 5 This is a perspective view of the base block of this utility model.

[0020] In the diagram: 1. Connecting plate, 2. Base pipe, 3. Extension pipe, 4. End, 5. Crossbar, 6. Base rod, 7. Extension rod, 8. Connecting rod, 9. Support block, 10. Bottom block, 11. Arc-shaped piece, 12. Limiting piece, 13. Disc, 14. Rubber protrusion. Detailed Implementation

[0021] Based on the 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.

[0022] like Figures 1-5 As shown, a quick-insertion device for anchoring agent in roadway roof bolt drilling includes a connecting plate 1, a base pipe 2 fixedly installed above the connecting plate 1, an extension pipe 3 threadedly connected to the upper side of the base pipe 2, and an end 4 threadedly connected to the upper side of the extension pipe 3. The base pipe 2, the extension pipe 3, and the end 4 are connected in series to form a first rod with the same inner diameter.

[0023] A crossbar 5 is provided on the lower side of the connecting plate 1, and the two sides of the crossbar 5 are connected to the bottom of the connecting plate 1 through connecting brackets.

[0024] A base rod 6 is fixedly installed below the connecting plate 1. An extension rod 7 is threadedly connected to the upper side of the base rod 6, and a connecting rod 8 is threadedly connected to the upper side of the extension rod 7. The base rod 6, extension rod 7, and connecting rod 8 are connected in series to form a second rod with the same outer diameter. A support block 9 is provided on the upper side of the connecting rod 8. The outer diameter of the support block 9 slides and matches the inner diameter of the first rod. Preferably, the top center of the support block 9 is recessed downward to form an arc-shaped groove, which matches the bottom shape of the anchoring agent.

[0025] The connecting plate 1 has a circular hole with the same inner diameter as the base pipe 2, and limit components are provided on both sides of the circular hole.

[0026] The limiting component includes two opposing base blocks 10. Each base block 10 is connected to the bottom of the connecting plate 1 by screws. The base block 10 extends upward to form an arc-shaped piece 11. The upper side of the arc-shaped piece 11 extends horizontally inward to form a limiting piece 12. The limiting piece 12 has a semi-circular latch. The two semi-circular latches can just hold the second rod body and ensure that the second rod body can slide freely.

[0027] A disc 13 is provided on the lower side of the base rod 6, and the outer diameter of the disc 13 is larger than the inner diameter of the insertion hole.

[0028] It should be noted that before installing the anchor bolts, holes need to be drilled in the tunnel roof, and multiple anchoring agents need to be placed into the holes according to the drilling depth for subsequent anchor bolt installation and fixation. The operator first connects the base pipe 2, extension pipe 3, and end 4 sequentially with threads to form the first rod body according to the usage requirements. Then, the base rod 6 is inserted into the insertion hole in the middle part of the crossbar 5. Subsequently, the base rod 6, extension rod 7, and connecting rod 8 are sequentially connected with threads to form the second rod body. The crossbar 5 is then fixed to the lower side of the connecting plate 1 using a connecting bracket. At this point, the second rod body will penetrate through the round hole and insert into the first rod body. Then, base blocks 10 can be installed on both sides of the round hole.

[0029] Multiple anchoring agents are inserted into the first rod body through end 4, and then the inserter is inserted into the drill hole. The operator can hold the crossbar 5 and the base rod 6 with both hands respectively, and then push the disc 13 to push out multiple anchoring agents from the end 4. The bottom block 10 is provided with an arc-shaped piece 11 and a limiting piece 12, which can limit the position of the second rod body and increase its stability. The insertion hole in the middle part of the crossbar 5 can further increase its stability and increase the convenience of operation for the operator.

[0030] This technical solution adds a crossbar 5 and a detachable base block 10. During use, the crossbar 5 facilitates the operator's movement of the inserter. After the anchoring agent is placed, the operator can easily remove the inserter. When inserting the anchoring agent for drilling at the top of the tunnel, the operator can easily lift the inserter to facilitate the application of force. After use, the base block 10 can be removed, and then the inserter can be disassembled as a whole, making it flexible to use.

[0031] Rubber protrusions 14 are evenly provided on both sides of the connecting plate 1 to increase the friction between the connecting plate 1 and the area around the drill hole, and to prevent the position of the inserter from shifting.

[0032] 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 rapid plugger for roof bolting agents in roadway bolting, comprising a connection plate (1), characterized in that, The connecting plate (1) is fixedly provided with a base pipe (2) above, the base pipe (2) is threadedly connected with an extension pipe (3) on the upper side, the extension pipe (3) is threadedly connected with a terminal (4) on the upper side, the base pipe (2), the extension pipe (3) and the terminal (4) are connected in series to form a first rod body with consistent inner diameter, the connecting plate (1) is provided with a cross bar (5) below, the cross bar (5) is connected with the bottom of the connecting plate (1) through connecting frames on both sides; The connecting plate (1) is fixedly provided with a base pipe (2) above, the base pipe (2) is threadedly connected with an extension pipe (3) on the upper side, the extension pipe (3) is threadedly connected with a terminal (4) on the upper side, the base pipe (2), the extension pipe (3) and the terminal (4) are connected in series to form a first rod body with consistent inner diameter, the connecting plate (1) is provided with a cross bar (5) below, the cross bar (5) is connected with the bottom of the connecting plate (1) through connecting frames on both sides; 2. A rapid packer for roof bolting agents according to claim 1, characterised in that, The limiting assembly comprises two oppositely arranged bottom blocks (10), each of which is connected with the bottom of the connecting plate (1) through a screw, the bottom block (10) extends upward to form an arc-shaped sheet (11), the arc-shaped sheet (11) extends horizontally upward to form a limiting sheet (12) toward the inner side, a semicircular clamping hole is formed in the limiting sheet (12), two semicircular clamping holes just clamp the second rod body, and the second rod body can freely slide.

3. A rapid packer for roof bolting agents according to claim 2, characterised in that, The cross bar (5) is provided with a bushing in the middle portion, which is used for the second rod body to slide through, and the top center of the supporting block (9) is recessed to form an arc-shaped groove.

4. A rapid packer for roof bolting agents according to claim 3, characterised in that, The base rod (6) is provided with a disc (13) on the lower side, and the outer diameter of the disc (13) is greater than the inner diameter of the bushing.

5. The rapid roof bolting agent injector of claim 1, wherein, The connecting plate (1) is uniformly provided with rubber convex points (14) on both sides. The connecting plate (1) is uniformly provided with rubber convex points (14) on both sides.