Hollow anchor rod with exhaust structure for upward grouting

Abstract

The utility model relates to the technical field of construction tools, in particular to a hollow anchor rod with an exhaust structure for upward grouting, which comprises a threaded anchor rod, the lower end of the threaded anchor rod is fixedly connected with a drill bit component in a penetrating manner, the upper part of the outer surface of the threaded anchor rod is sleeved with a limiting sealing component, and the upper end of the threaded anchor rod is fixedly connected with a connecting pipe in a penetrating manner; a positioning ring is fixedly connected to the upper end of the connecting pipe in a penetrating mode, and a plurality of connecting holes are formed in the upper end of the positioning ring in an annular array penetrating mode; the threaded anchor rod comprises a rod body, the lower end of the rod body is fixedly connected with a solenoid in a penetrating mode, the lower end of the solenoid is provided with a cavity in a penetrating mode, the upper portion of the outer surface of the solenoid is sleeved with a rubber pad, and the rod body is fixedly connected with the drill bit assembly in a penetrating mode. According to the hollow anchor rod used for upward grouting and provided with the exhaust structure, through the arrangement of the limiting sealing assembly and the drill bit assembly, the limiting and dismounting process of the whole hollow anchor rod can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction tools, in particular to a hollow anchor rod with an exhaust structure for upward grouting. Background Technique

[0002] As a support means with low cost, obvious effect and convenient on-site construction, anchor rods are widely used in the field of surrounding rock support.

[0003] The existing publicly disclosed patent number (CN 220267744 U) of a hollow grouting reinforcement anchor rod includes a threaded anchor rod and also includes a plugging grouting assembly. The plugging grouting assembly includes a connecting piece, a block body, a plugging disc, a fixing block, a threaded block, an adjusting block, a plug, an elastic plate, barbs and a drill bit. The utility model belongs to the technical field of construction tools, specifically a hollow grouting reinforcement anchor rod that can connect the whole with a drill rig, adjust the plugging disc to the top of the grouting port by rotating the block body, plug the inner wall of the grouting port by adjusting the threaded block, and the barbs can increase the anti-pulling force of the threaded anchor rod to facilitate the outflow of mortar and ensure the effect of anchor rod reinforcement. However, in the actual use process, it is not easy to disassemble and clean the drill bit of this device, and the limit sealing process of this device is not firm enough. Therefore, we introduce a new hollow anchor rod with an exhaust structure for upward grouting. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a hollow anchor rod with an exhaust structure for upward grouting, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A hollow anchor rod with an exhaust structure for upward grouting includes a threaded anchor rod. The lower end of the threaded anchor rod is fixedly connected through penetration with a drill bit assembly. The upper part of the outer surface of the threaded anchor rod is sleeved with a limit sealing assembly. The upper end of the threaded anchor rod is fixedly connected through penetration with a connecting pipe. The upper end of the connecting pipe is fixedly connected through penetration with a positioning ring. A plurality of connecting holes are annularly and arrayedly penetrated through the upper end of the positioning ring;

[0007] The threaded anchor rod includes a rod body. The lower end of the rod body is fixedly connected through penetration with a screw pipe. A cavity is penetrated through the lower end of the screw pipe. A rubber pad is sleeved on the upper part of the outer surface of the screw pipe. The rod body is fixedly connected through penetration with the drill bit assembly.

[0008] Preferably, the drill bit assembly includes a drill rod. A screw groove is opened at the upper end of the drill rod. A plurality of through holes are annularly arrayed on the outer surface of the drill rod. A limit top screw is inserted and connected to the rear part of the outer surface of the drill rod, and the limit top screw is located above the plurality of through holes. The drill rod is sleeved with the threaded anchor rod.

[0009] By adopting the above technical solution: the limiting set screw passes through the drill pipe and contacts the screw pipe, so as to reinforce the connection between the drill bit assembly and the threaded anchor rod and improve the stability.

[0010] Preferably, the limiting and sealing assembly includes a limiting ring. A connecting ring is fixedly connected through the lower end of the limiting ring in a penetrating manner. A sealing gasket is sleeved on the lower part of the outer surface of the connecting ring. A limiting screw rod is inserted and connected to the right part of the outer surface of the limiting ring. The limiting ring is sleeved on the threaded anchor rod.

[0011] By adopting the above technical solution: by sliding the position of the limiting ring on the threaded anchor rod and making the limiting screw rod pass through the limiting ring and contact the threaded anchor rod, the height of the limiting and sealing assembly can be adjusted and fixed, so as to improve the flexibility.

[0012] Preferably, the screw pipe is inserted and connected with the screw groove.

[0013] By adopting the above technical solution: it is convenient for the connection between the threaded anchor rod and the drill bit assembly.

[0014] Preferably, the limiting screw rod passes through the limiting ring and contacts the threaded anchor rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. By arranging the drill bit assembly, sleeving the screw groove on the drill bit assembly with the screw pipe on the threaded anchor rod, and making the limiting set screw pass through the drill pipe and contact the screw pipe, the connection between the threaded anchor rod and the drill bit assembly can be fixed, so as to improve the stability. Moreover, the connection between the threaded anchor rod and the drill bit assembly is convenient for installation, disassembly, cleaning of the drill bit assembly.

[0017] 2. By arranging the limiting and sealing assembly to limit and seal the whole hollow anchor rod, by sliding the position of the limiting ring on the threaded anchor rod and making the limiting screw rod pass through the limiting ring and contact the threaded anchor rod, the height of the limiting and sealing assembly can be adjusted and fixed, so as to improve the flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structural schematic diagram of a hollow anchor rod with an exhaust structure for upward grouting of the utility model;

[0019] Figure 2 It is the overall structural schematic diagram of the threaded anchor rod of a hollow anchor rod with an exhaust structure for upward grouting of the utility model;

[0020] Figure 3 It is the overall structural schematic diagram of the drill bit assembly of a hollow anchor rod with an exhaust structure for upward grouting of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the limit sealing component of a hollow anchor rod with an exhaust structure for upward grouting in the present utility model.

[0022] In the figure: 1, threaded anchor rod; 2, drill bit assembly; 3, limit sealing component; 4, connecting pipe; 5, positioning ring; 6, connecting hole; 11, rod body; 12, cavity; 13, screw pipe; 14, rubber pad; 21, drill pipe; 22, screw groove; 23, through hole; 24, limit set screw; 31, limit ring; 32, sealing pad; 33, connecting ring; 34, limit screw rod. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0027] A hollow anchor rod with an exhaust structure for upward grouting, including a threaded anchor rod 1, the lower end of the threaded anchor rod 1 is fixedly connected through penetration with a drill bit assembly 2, the upper part of the outer surface of the threaded anchor rod 1 is sleeved with a limit sealing component 3, the upper end of the threaded anchor rod 1 is fixedly connected through penetration with a connecting pipe 4, the upper end of the connecting pipe 4 is fixedly connected through penetration with a positioning ring 5, and a plurality of connecting holes 6 are annularly and arrayedly penetrated through the upper end of the positioning ring 5;

[0028] In this embodiment, the threaded anchor rod 1 includes a rod body 11. A screw pipe 13 is fixedly connected to the lower end of the rod body 11 in a penetrating manner. A cavity 12 is formed through the lower end of the screw pipe 13. A rubber pad 14 is sleeved on the upper part of the outer surface of the screw pipe 13. The rod body 11 is fixedly connected to the drill bit assembly 2 in a penetrating manner. The drill bit assembly 2 includes a drill rod 21. A screw groove 22 is formed at the upper end of the drill rod 21. A plurality of through holes 23 are formed in an annular array on the outer surface of the drill rod 21. A limit set screw 24 is inserted and connected to the rear part of the outer surface of the drill rod 21, and the limit set screw 24 is located above the plurality of through holes 23. The drill rod 21 is sleeved on the threaded anchor rod 1. The screw pipe 13 is inserted and connected to the screw groove 22.

[0029] Through the above solution: By providing the drill bit assembly 2, the screw groove 22 on the drill bit assembly 2 is sleeved on the screw pipe 13 on the threaded anchor rod 1, and the limit set screw 24 passes through the drill rod 21 and contacts the screw pipe 13, so that the connection between the threaded anchor rod 1 and the drill bit assembly 2 can be fixed, improving stability. Moreover, the connection between the threaded anchor rod 1 and the drill bit assembly 2 is convenient for installation, disassembly, and cleaning of the drill bit assembly 2.

[0030] In this embodiment, the limit and seal assembly 3 includes a limit ring 31. A connection ring 33 is fixedly connected to the lower end of the limit ring 31 in a penetrating manner. A seal pad 32 is sleeved on the lower part of the outer surface of the connection ring 33. A limit screw 34 is inserted and connected to the right part of the outer surface of the limit ring 31. The limit ring 31 is sleeved on the threaded anchor rod 1. The limit screw 34 passes through the limit ring 31 and contacts the threaded anchor rod 1.

[0031] Through the above solution: The use process of the threaded anchor rod 1 is limited by the limit and seal assembly 3. By sliding the position of the limit ring 31 on the threaded anchor rod 1 and making the limit screw 34 pass through the limit ring 31 and contact the threaded anchor rod 1, the height of the limit and seal assembly 3 can be adjusted and fixed, improving flexibility.

[0032] It should be noted that the present utility model is a hollow anchor rod with an exhaust structure for upward grouting. During the use process, first, the entire hollow anchor rod is connected to an external drill through a positioning ring 5. The spiral groove 22 on the drill bit assembly 2 is sleeved with the spiral pipe 13 on the threaded anchor rod 1, and the limit set screw 24 passes through the drill pipe 21 and contacts the spiral pipe 13 to achieve a stable connection between the anchor rod and the drill bit. This connection method not only ensures the stability of the connection but also facilitates subsequent disassembly and cleaning. By sliding the position of the sliding limit ring 31 on the threaded anchor rod 1 and using the limit screw 34 to pass through the limit ring 31 and contact the threaded anchor rod 1, the height of the limit sealing assembly 3 can be adjusted and fixed. This step improves the flexibility of the anchor rod during use, enabling it to adapt to different construction environments and requirements. During the grouting process, the grouting material is injected into the anchor hole through the hollow channel of the threaded anchor rod 1. Since the anchor rod is designed for upward grouting, an exhaust structure is specially provided (such as an exhaust pipe arranged in the cavity 12) to ensure that the gas in the anchor hole can be smoothly discharged during grouting, thereby ensuring the fullness and density of the grouting. The existence of the exhaust structure effectively solves the problem of difficult exhaust for hollow anchor rods above the horizontal line, improving the grouting efficiency and the anchoring effect of the anchor rod. The design of this hollow anchor rod fully considers the flexibility requirements during the construction process. For example, the easy disassembly of the drill bit assembly 2 facilitates cleaning and maintenance when needed; the adjustable height of the limit sealing assembly 3 enables it to adapt to the construction requirements of anchor holes with different depths. In summary, this hollow anchor rod with an exhaust structure for upward grouting performs excellently in improving the grouting efficiency, ensuring the fullness of grouting, and simplifying the installation and disassembly process through its unique design and working principle, and is applicable to various geotechnical engineering construction scenarios.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hollow anchor rod with an exhaust structure for upward grouting, comprising a threaded anchor rod (1), characterized in that: The lower end of the threaded anchor rod (1) is fixedly connected through penetration with a drill bit assembly (2). The upper part of the outer surface of the threaded anchor rod (1) is sleeved with a limit and sealing assembly (3). The upper end of the threaded anchor rod (1) is fixedly connected through penetration with a connecting pipe (4). The upper end of the connecting pipe (4) is fixedly connected through penetration with a positioning ring (5). A plurality of connecting holes (6) are formed through the upper end of the positioning ring (5) in an annular array. The threaded anchor rod (1) includes a rod body (11). The lower end of the rod body (11) is fixedly connected through penetration with a screw pipe (13). A cavity (12) is formed through the lower end of the screw pipe (13). A rubber pad (14) is sleeved on the upper part of the outer surface of the screw pipe (13). The rod body (11) is fixedly connected through penetration with the drill bit assembly (2).

2. The hollow anchor rod with an exhaust structure for upward grouting according to claim 1, characterized in that: The drill bit assembly (2) includes a drill rod (21). A screw groove (22) is formed at the upper end of the drill rod (21). A plurality of through holes (23) are formed in an annular array on the outer surface of the drill rod (21). A limit set screw (24) is inserted and connected to the rear part of the outer surface of the drill rod (21), and the limit set screw (24) is located above the plurality of through holes (23). The drill rod (21) is sleeved with the threaded anchor rod (1).

3. The hollow bolt with an exhaust structure for upward grouting according to claim 1, characterized in that: The limit and sealing assembly (3) includes a limit ring (31). The lower end of the limit ring (31) is fixedly connected through penetration with a connecting ring (33). A sealing pad (32) is sleeved on the lower part of the outer surface of the connecting ring (33). A limit screw rod (34) is inserted and connected to the right part of the outer surface of the limit ring (31). The limit ring (31) is sleeved with the threaded anchor rod (1).

4. A hollow bolt with an exhaust structure for upward grouting according to claim 1, characterized in that: The screw pipe (13) is inserted and connected with the screw groove (22).

5. The hollow bolt with an exhaust structure for upward grouting according to claim 3, characterized in that: The limit screw rod (34) passes through the limit ring (31) and contacts the threaded anchor rod (1).

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