Anchor rod assembly

Abstract

The utility model relates to the technical field of anchor rod supporting, and discloses an anchor rod assembly which comprises an outer mounting rod, a base plate, an inner positioning rod and an adjusting part, the inner positioning rod is arranged in an inner cavity of the outer mounting rod in a sliding mode, multiple sets of sliding grooves are formed in the outer side of the outer mounting rod, and the base plate is arranged at the upper end of the outer mounting rod; the adjusting part is mounted at the upper end of the mounting outer rod in a threaded manner, and the positioning inner rod is rotationally arranged below the adjusting part; through cooperation of the outer mounting rod, the base plate, the inner positioning rod and the adjusting piece, the adjusting piece is used for conveniently driving the inner positioning rod to move in the cavity of the outer mounting rod, then the position of the positioning block is changed after the positioning block abuts against the sliding groove, the positioning block extends out of the sliding groove while the guide strip slides in the guide groove, and therefore the positioning block abuts against the inner wall of a drill hole; and rapid positioning of the anchor rod assembly is completed, the installation efficiency of the anchor rod assembly is further improved, and the stability of the anchor rod assembly after installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolt support technology, specifically to an anchor bolt assembly. Background Technology

[0002] Anchor bolt support is a reinforcement and support method used in surface engineering such as slopes and deep foundation pits, as well as underground chamber construction such as tunnels and mining areas. Anchor bolts, as tension members that penetrate deep into the strata, include a free section and an anchoring section. When used in mine roadways, the anchoring section is inserted into a pre-drilled hole in the roadway, which is filled with anchoring adhesive or concrete. The free section extends out of the drilled hole. After the anchoring adhesive has solidified, prestress is applied to the free section through a prestressing kit for anchoring and fixing.

[0003] In the prior art, Chinese utility model application number CN202321526095.1 discloses an anchor bolt assembly, including an anchor bolt, which comprises a threaded portion and an anchor head. The anchor head is disposed at the lower end of the threaded portion and is fixedly connected to the threaded portion. A tray frame is mounted on the threaded portion, and the tray frame is detachably fixedly connected to the threaded portion. A first locking member is provided at the upper end of the tray frame, and a second locking member is provided at the upper end of the first locking member. This utility model achieves auxiliary locking and limiting of the tray frame by providing a first locking member at the upper end of the tray frame, and then achieves auxiliary locking and limiting of the first locking member by providing a second locking member at the upper end of the first locking member. This double insurance ensures that the tray frame is installed on the anchor bolt more safely and stably. Even if the tray frame is suddenly subjected to a large external force, it will not fall off the anchor bolt. It has the advantages of safe use and easy installation.

[0004] The anchor bolt assembly in the above technical solution is connected to the hole only by injected adhesive or concrete during use. Since it is only supported by screws, the overall support strength is low and it is easy to break. The support effect needs to be further improved. In addition, the installation steps using multiple locking structures are relatively complicated, which reduces the convenience of installation. Therefore, we need to propose an anchor bolt assembly. Utility Model Content

[0005] The purpose of this utility model is to provide an anchor bolt assembly that uses an expansion structure to enable the anchor bolt to be quickly positioned in the pre-drilled hole, thereby improving the installation efficiency of the anchor bolt. At the same time, it facilitates the filling of the gap between the anchor bolt and the hole with adhesive and concrete after positioning, further improving the stability of the anchor bolt after installation and enhancing the support effect, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anchor bolt assembly, comprising an outer mounting rod, a pad, a positioning inner rod, and an adjusting component.

[0007] The positioning inner rod is slidably disposed in the inner cavity of the mounting outer rod, and multiple sets of sliding grooves are opened on the outer side of the mounting outer rod. The pad is disposed at the upper end of the mounting outer rod, the adjusting member is threadedly installed at the upper end of the mounting outer rod, and the positioning inner rod is rotatably disposed below the adjusting member.

[0008] The outer side of the positioning inner rod is provided with multiple guide holes, each layer of guide holes is provided with multiple guide holes, and a positioning block is slidably arranged in each guide hole. A guide strip is provided on the inclined side of the positioning block, and a guide groove is provided in the guide hole for the guide strip to slide.

[0009] Preferably, one side of the positioning block is provided with multiple sets of positioning cones, the multiple sets of positioning cones are arranged at equal intervals, the side of the positioning block adjacent to the positioning cones is provided with two sets of side holes, and the cross section of the guide strip is arranged in a trapezoidal shape.

[0010] Preferably, the adjusting component includes a stud, a limiting ring is provided at the middle of the outer side of the stud, a U-shaped groove is provided at the lower end of the stud, and a connecting shaft is rotatably arranged in the U-shaped groove, and an installation hole for installing the connecting shaft is provided at the upper end of the positioning inner rod.

[0011] Preferably, the upper end of the stud is provided with a slot, the slot is hexagonal, and the upper end of the inner cavity of the mounting outer rod is provided with an internal thread that is threaded to the stud.

[0012] Preferably, a first washer is provided on the lower surface of the pad, and a second washer is provided on the upper surface of the pad. The second washer is sleeved on the outside of the stud and is located below the limiting ring.

[0013] Preferably, the outer mounting rod has an upper ring channel, multiple sets of connecting channels, and a lower ring channel. The two ends of the multiple sets of connecting channels are respectively connected to the upper ring channel and the lower ring channel. The upper ring channel and the lower ring channel are respectively located at both ends of the outer mounting rod.

[0014] Preferably, an injection tube is provided at one end of the upper surface of the pad, a plug is inserted into the upper end of the injection tube, the injection tube is connected to the upper ring channel, and multiple sets of discharge holes connected to the lower ring channel are opened on the outer side of the lower end of the mounting rod.

[0015] Preferably, the outer side of the mounting rod is provided with multiple extension blocks, the multiple extension blocks are arranged at equal intervals, each layer of the extension blocks is provided with multiple extension blocks, and the multiple extension blocks are arranged at equal angles.

[0016] Preferably, the height of the groove is greater than the height of the guide hole, the positioning block is slidably disposed in the groove, and the length of the positioning block is greater than the thickness of the mounting outer rod.

[0017] Preferably, it also includes an adjustment handle, which is T-shaped and has a hexagonal post at its lower end that fits into the slot.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model mainly utilizes the cooperation between the outer rod, pad, positioning inner rod, and adjusting component. The adjusting component facilitates the movement of the positioning inner rod within the cavity where the outer rod is installed. This causes the positioning block to change position after contacting the sliding groove. As the guide strip slides within the guide groove, the positioning block extends out of the groove, thereby contacting the inner wall of the drilled hole. This completes the rapid positioning of the anchor bolt assembly, further improving the installation efficiency and stability of the anchor bolt assembly after installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mounting outer rod of this utility model;

[0022] Figure 3 This is a schematic diagram of the positioning inner rod structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting outer rod of this utility model;

[0024] Figure 5 This is a schematic diagram of the adjusting component structure of this utility model.

[0025] In the diagram: 1. Install outer rod; 11. Slide groove; 12. Extension block; 13. Upper ring channel; 14. Connecting channel; 15. Lower ring channel; 16. Discharge hole; 2. Pad; 21. Injection pipe; 22. Plug; 3. Positioning inner rod; 31. Mounting hole; 32. Guide hole; 33. Guide groove; 34. Positioning block; 35. Positioning cone; 36. Guide strip; 37. Side hole; 4. Adjusting component; 41. Stud; 42. Limiting ring; 43. Connecting shaft; 44. Slot; 5. Adjusting handle; 6. First washer; 7. Second washer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: an anchor bolt assembly, including an outer mounting rod 1, a pad 2, a positioning inner rod 3, and an adjusting component 4.

[0028] The positioning inner rod 3 is slidably disposed in the inner cavity of the mounting outer rod 1. Multiple sets of sliding grooves 11 are opened on the outer side of the mounting outer rod 1. The pad 2 is disposed at the upper end of the mounting outer rod 1. The adjusting member 4 is threadedly installed at the upper end of the mounting outer rod 1. The positioning inner rod 3 is rotatably disposed below the adjusting member 4.

[0029] The outer side of the positioning inner rod 3 is provided with multiple layers of guide holes 32. Each layer of guide holes 32 is provided with multiple guide holes 32. A positioning block 34 is slidably arranged in each guide hole 32. A guide strip 36 is provided on the inclined side of the positioning block 34. A guide groove 33 is provided in the guide hole 32 for the guide strip 36 to slide.

[0030] In a further preferred embodiment, a plurality of positioning cones 35 are provided on one side of the positioning block 34, and the plurality of positioning cones 35 are arranged at equal intervals. Two sets of side holes 37 are provided on the side of the positioning block 34 adjacent to the positioning cones 35. The cross section of the guide strip 36 is trapezoidal. The design of the positioning cones 35 enhances the biting force between the positioning block 34 and the surrounding medium, and improves the fixing effect of the anchor rod.

[0031] Furthermore, the adjusting component 4 includes a stud 41, a limiting ring 42 is provided at the middle of the outer side of the stud 41, a convex groove is provided at the lower end of the stud 41, and a connecting shaft 43 is rotatably arranged in the convex groove. The upper end of the positioning inner rod 3 is provided with a mounting hole 31 for installing the connecting shaft 43. The adjusting component 4 and the positioning inner rod 3 can be quickly connected through the connecting shaft 43, thereby facilitating the adjustment of the position of the positioning inner rod 3.

[0032] Secondly, the upper end of the stud 41 is provided with a slot 44, which is hexagonal. The upper end of the inner cavity of the outer rod 1 is provided with an internal thread that is threaded to the stud 41. The position of the positioning inner rod 3 can be easily adjusted through the stud 41. The overall structure is simple and the practicality is improved.

[0033] Preferably, a first gasket 6 is provided on the lower surface of the gasket 2, and a second gasket 7 is provided on the upper surface of the gasket 2. The second gasket 7 is sleeved on the outside of the stud 41 and is located below the limiting ring 42. This improves the sealing performance between the first gasket 6 and the rock layer, and the second gasket 7 can buffer the descent height of the limiting ring 42. The design of the limiting ring 42 prevents the adjusting member 4 from rotating excessively and avoids damage to the internal structure.

[0034] In addition, the outer rod 1 is provided with an upper ring channel 13, multiple sets of connecting channels 14 and a lower ring channel 15. The two ends of the multiple sets of connecting channels 14 are respectively connected to the upper ring channel 13 and the lower ring channel 15. The upper ring channel 13 and the lower ring channel 15 are respectively set at both ends of the outer rod 1, so that the filling material can be evenly distributed and the bonding strength between the anchor rod and the surrounding medium can be enhanced.

[0035] In this embodiment, an injection tube 21 is provided at one end of the upper surface of the pad 2, and a plug 22 is inserted into the upper end of the injection tube 21. The injection tube 21 is connected to the upper ring channel 13. Multiple sets of discharge holes 16 connected to the lower ring channel 15 are opened on the outer side of the lower end of the mounting rod 1. The design of the injection tube 21 and the plug 22 facilitates the injection and sealing of the filling material and prevents leakage.

[0036] It is worth noting that multiple extension blocks 12 are provided on the outer side of the outer rod 1. The multiple extension blocks 12 are arranged at equal intervals, and each layer of extension blocks 12 has multiple blocks. The multiple extension blocks 12 are arranged at equal angles. The extension blocks 12 increase the contact area between the injected adhesive and mortar, thereby improving the overall installation stability of the anchor rod assembly and improving the anchoring effect.

[0037] To further explain, the height of the slide groove 11 is greater than the height of the guide hole 32. The positioning block 34 is slidably disposed in the slide groove 11. The length of the positioning block 34 is greater than the thickness of the mounting outer rod 1, which increases the sliding clearance of the positioning block 34, prevents the positioning block 34 from being stuck in the slide groove 11, and improves the sliding stability of the positioning block 34.

[0038] It also includes an adjustment handle 5, which is T-shaped. The lower end of the adjustment handle 5 is provided with a hexagonal post that fits into the slot 44. The adjustment handle 5 makes it easy for the operator to apply force and improves the adjustment efficiency. The fitting design of the hexagonal post and the slot 44 ensures that the adjustment handle 5 and the adjustment part 4 are firmly connected and prevent slippage.

[0039] In use, the entire anchor bolt assembly is inserted into the drilled hole in the rock stratum. The hexagonal pin on the adjusting handle 5 is inserted into the slot 44 to rotate the stud 41, causing the stud 41 to penetrate deeper into the outer rod 1. Then, under the action of the connecting shaft 43, the positioning inner rod 3 is driven to penetrate deeper into the inner cavity of the outer rod 1. As the positioning inner rod 3 penetrates deeper, the positioning block 34 will first contact the bottom of the slide groove 11. Under the limiting action of the slide groove 11, the guide strip 36 on the positioning block 34 slides along the guide groove 33, thereby causing the positioning block 34 to extend into the gap between the outer rod 1 and the drilled hole. The positioning cone 35 on the positioning block 34 is inserted into the inner wall of the drilled hole, realizing the rapid positioning of the anchor bolt assembly. The adhesive and mortar to be injected into the drilled hole are injected through the injection pipe 21, and the adhesive and mortar are discharged into the space between the drilled hole and the outer rod 1 through the discharge hole 16, thereby fixing the anchor bolt assembly and improving the stability of the anchor bolt assembly installed in the drilled hole.

[0040] 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. An anchor rod assembly, characterized by, It includes installation outer pole (1), backing plate (2), positioning inner pole (3) and adjusting part (4): The positioning inner pole (3) is slidably arranged in the inner cavity of the installation outer pole (1), a plurality of slide grooves (11) are formed on the outer side of the installation outer pole (1), the backing plate (2) is arranged on the upper end of the installation outer pole (1), the adjusting part (4) is threadedly arranged on the upper end of the installation outer pole (1), and the positioning inner pole (3) is rotatably arranged below the adjusting part (4). A plurality of layers of guide holes (32) are formed on the outer side of the positioning inner pole (3), each layer of guide holes (32) is provided with a plurality of guide holes (32), each guide hole (32) is slidably provided with a positioning block (34), an inclined side of the positioning block (34) is provided with a guide strip (36), and a guide groove (33) for slidably arranging the guide strip (36) is formed in the guide hole (32).

2. An anchor assembly according to claim 1, characterised in that: A plurality of groups of positioning cones (35) are arranged on one side of the positioning block (34), a plurality of groups of the positioning cones (35) are arranged at equal intervals, two groups of side holes (37) are formed on the side of the positioning block (34) adjacent to the positioning cone (35), and the cross section of the guide strip (36) is arranged in a trapezoidal shape.

3. An anchor assembly according to claim 2, wherein: The adjusting part (4) comprises a threaded stud (41), a limiting ring (42) is arranged on the outer middle portion of the threaded stud (41), a convex-shaped recess is formed in the lower end of the threaded stud (41), a connecting shaft (43) is rotatably arranged in the convex-shaped recess, and an installation hole (31) for mounting the connecting shaft (43) is formed in the upper end of the positioning inner pole (3).

4. An anchor assembly according to claim 3, wherein: A clamping groove (44) is formed in the upper end of the threaded stud (41), the clamping groove (44) is arranged in a hexagonal shape, and an inner thread for threadedly connecting with the threaded stud (41) is arranged on the upper end of the inner cavity of the installation outer pole (1).

5. An anchor assembly according to claim 4, wherein: A first gasket (6) is arranged on the lower surface of the backing plate (2), a second gasket (7) is arranged on the upper surface of the backing plate (2), the second gasket (7) is sleeved on the outer side of the threaded stud (41), and the second gasket (7) is arranged below the limiting ring (42).

6. An anchor assembly according to claim 5, wherein: An upper ring channel (13), a plurality of connecting channels (14) and a lower ring channel (15) are formed in the installation outer pole (1), two ends of each of the plurality of connecting channels (14) are connected with the upper ring channel (13) and the lower ring channel (15) respectively, and the upper ring channel (13) and the lower ring channel (15) are arranged at two ends of the installation outer pole (1) respectively.

7. An anchor assembly according to claim 6, wherein: An injection pipe (21) is arranged at one end of the upper surface of the backing plate (2), a plug body (22) is inserted into the upper end of the injection pipe (21), the injection pipe (21) is connected with the upper ring channel (13), and a plurality of discharge holes (16) connected with the lower ring channel (15) are formed on the outer side of the lower end of the installation outer pole (1).

8. An anchor assembly according to claim 7, wherein: A plurality of layers of extension blocks (12) are arranged on the outer side of the installation outer pole (1), the plurality of layers of extension blocks (12) are arranged at equal intervals, each layer of the extension blocks (12) is provided with a plurality of extension blocks (12), and the plurality of extension blocks (12) are arranged at equal angles.

9. An anchor assembly according to claim 8, wherein: The height of the sliding groove (11) is greater than the height of the guide hole (32), the positioning block (34) is slidingly arranged in the sliding groove (11), and the length of the positioning block (34) is greater than the thickness of the outer rod (1).

10. An anchor assembly according to claim 9, wherein: Further comprising an adjusting handle (5), the adjusting handle (5) is arranged in a T shape, and the lower end of the adjusting handle (5) is provided with a hexagonal column matched with the clamping groove (44).

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