Grouting device for advanced drilling

Abstract

The utility model discloses a grouting device for advanced drilling. The grouting device comprises a grouting anchor rod, a plugging assembly and a plugging assembly knocking assembly. The plugging assembly is composed of a first plugging body and a second plugging body which form a cone-shaped body in a half-and-half mode. The first plugging body comprises a first conical body, a first center hole formed in the first conical body, a first notch part and a second notch part which are formed in the upper portion of the inner side of the first conical body, and connecting threaded holes formed in the first notch part and the second notch part in a one-to-one correspondence mode. The second plugging body comprises a second conical body, a second center hole formed in the second conical body, a first upper boss and a second upper boss which are arranged at the upper part of the second conical body, and stepped holes which are formed in the first upper boss and the second upper boss in a one-to-one correspondence manner; the first notch part is complementary to the first upper boss, and the second notch part is complementary to the second upper boss; an inner hexagonal screw rod is arranged in the connecting threaded hole and the stepped hole; the grouting anchor rod is sleeved with the first center hole and the second center hole.

Description

Technical Field

[0001] This utility model relates to the field of grouting technology, and in particular to a grouting device for advanced drilling. Background Technology

[0002] Advanced drilling technology is widely used in engineering construction and geological exploration, mainly for preliminary exploration of underground conditions before construction. In engineering construction (such as tunnel construction), in order to ensure that the roof in front of the tunnel does not collapse, it is often necessary to use advanced drilling and insert anchor bolts to reinforce the roof.

[0003] Current technology involves drilling several grouting holes in the rock mass, inserting grouting anchor bolts, sealing the ends of the grouting holes, and then performing grouting. A connecting flange is installed at the rear end of the grouting anchor bolt, which connects to the grouting pipe. As is well known, the diameter of the connecting flange is larger than the diameter of the grouting anchor bolt. Therefore, the sealing assembly for sealing the grouting holes needs to be fitted onto the grouting anchor bolt first, which is difficult to install and inconvenient to perform the sealing operation.

[0004] Therefore, there is an urgent need to develop a grouting device for advanced drilling that is simple in structure, easy to install, and reliable in sealing. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a grouting device for advanced drilling. The technical solution adopted by this utility model is as follows:

[0006] A pre-drilled grouting device is installed in a grouting hole in a rock mass and connected to a grouting pipe. It includes a grouting anchor rod with one end inserted into the grouting hole, a sealing component sleeved on the grouting anchor rod and pressing against the grouting hole, and a sealing component striking component sleeved on the rear end of the grouting anchor rod and pressing against the sealing component. A connecting flange is provided at the rear end of the grouting anchor rod; several grout outlets are provided at the front end of the grouting anchor rod; the sealing component striking component is sleeved on the connecting flange; the sealing component consists of a first sealing body and a second sealing body, each composed of two halves forming a conical shape.

[0007] The first sealing body includes a first conical body, a first central hole opened in the first conical body, a first notch and a second notch opened in the upper inner side of the first conical body, and connecting threaded holes that are correspondingly provided on the first notch and the second notch.

[0008] The second sealing body includes a second conical body, a second central hole opened in the second conical body, a first upper boss and a second upper boss disposed on the upper part of the second conical body, and stepped holes disposed on the first upper boss and the second upper boss respectively; the first notch is complementary to the first upper boss, and the second notch is complementary to the second upper boss; an internal hexagonal screw is disposed in the connecting threaded hole and the stepped hole; the first central hole and the second central hole are sleeved on the grouting anchor rod.

[0009] Furthermore, the sealing assembly includes a U-shaped open tube, a horseshoe-shaped seat at the bottom of the U-shaped open tube, and a cylindrical platform at the top of the U-shaped open tube; the U-shaped open tube is fitted onto the connecting flange; the horseshoe-shaped seat is pressed against the sealing assembly; the inner diameter of the U-shaped open tube is larger than the diameter of the connecting flange.

[0010] Furthermore, the inner side of the first cone is provided with a first boss and a second boss respectively; the inner side of the second cone is provided with a third notch and a fourth notch respectively; the third notch is complementary to the first boss, and the fourth notch is complementary to the second boss.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) This utility model sets up a first sealing body and a second sealing body that are half of a cone shape and connects them with bolts. The first sealing body and the second sealing body are complementary to each other, ensuring that they are reliably fitted onto the grouting anchor rod. Its installation is convenient and reliable.

[0013] (2) This utility model sets up a sealing component and a knocking component, and squeezes the sealing component by knocking, so that the sealing component is squeezed on the grouting hole, and the sealing is reliable.

[0014] In summary, this utility model has the advantages of simple structure, convenient installation, and reliable sealing, and has high practical and promotional value in the field of grouting technology. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the installation structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the grouting anchor and sealing assembly of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the first sealing body of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the second sealing body of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the sealing component and the striking component of this utility model.

[0022] In the above figures, the component names corresponding to the reference numerals are as follows:

[0023] 1. Rock mass; 100. Grouting hole; 2. Grouting anchor; 21. Connecting flange; 3. Sealing assembly; 311. First cone; 312. First notch; 313. Second notch; 314. Connecting threaded hole; 315. First center hole; 316. First boss; 317. Second boss; 321. Second cone; 322. First upper boss; 323. Second upper boss; 324. Stepped hole; 325. Second center hole; 326. Third notch; 327. Fourth notch; 4. Sealing assembly hammering assembly; 41. U-shaped opening pipe; 42. Horseshoe seat; 43. Columnar platform. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] Example

[0026] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0027] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0028] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0029] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0030] like Figures 1 to 5 As shown, this embodiment provides a grouting device for advanced drilling, which is installed in the grouting hole 100 on the rock mass 1. After being sealed and fixed, it is connected to the grouting pipe so that grouting can be performed.

[0031] In this embodiment, the grouting device for advanced drilling includes a grouting anchor rod 2 with one end inserted into the grouting hole 100, a sealing component 3 sleeved on the grouting anchor rod 2 and pressing and sealing the grouting hole 100, and a sealing component striking component 4 sleeved on the rear end of the grouting anchor rod 2 and pressing against the sealing component 3. A connecting flange 21 is provided at the rear end of the grouting anchor rod 2, and several grout outlets are provided at the front end of the grouting anchor rod 2. In this embodiment, the sealing component striking component 4 is sleeved on the connecting flange 21, and by striking the sealing component striking component 4, the sealing component 3 reliably presses and seals the end of the grouting hole 100.

[0032] In this embodiment, the sealing assembly 3 consists of a first sealing body and a second sealing body, each composed of two halves forming a cone shape. The first sealing body includes a first cone 311, a first central hole 315 within the first cone 311, a first notch 312 and a second notch 313 on the upper inner side of the first cone 311, threaded holes 314 corresponding to the first notch 312 and the second notch 313, and a first boss 316 and a second boss 317 respectively located on the inner side of the first cone 311. The second sealing body includes a second cone 321, a second central hole 325 within the second cone 321, a first upper boss 322 and a second upper boss 323 on the upper part of the second cone 321, stepped holes 324 corresponding to the first upper boss 322 and the second upper boss 323, and a third notch 326 and a fourth notch 327 respectively located on the inner side of the second cone 321.

[0033] In this embodiment, the first notch 312 is complementary to the first upper boss 322, the second notch 313 is complementary to the second upper boss 323, the third notch 326 is complementary to the first boss 316, and the fourth notch 327 is complementary to the second boss 317. Additionally, an internal hexagonal screw is provided within the connecting threaded hole 314 and the stepped hole 324 to achieve a fixed connection. After the first and second sealing bodies are assembled, the first central hole 315 and the second central hole 325 are fitted onto the grouting anchor 2.

[0034] In this embodiment, to achieve reliable compression installation of the sealing assembly 3, the sealing assembly striking component 4 includes a U-shaped opening tube 41, a horseshoe-shaped seat 42 disposed at the bottom of the U-shaped opening tube 41, and a cylindrical platform 43 disposed at the top of the U-shaped opening tube 41. In this embodiment, the U-shaped opening tube 41 is sleeved on the connecting flange 21, and the inner diameter of the U-shaped opening tube 41 is larger than the diameter of the connecting flange 21. Furthermore, the horseshoe-shaped seat 42 is pressed against the sealing assembly 3. In this embodiment, by striking the cylindrical platform 43, the sealing assembly 3 is pressed against the end of the grouting hole 100.

[0035] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A grouting device for advanced drilling, installed in a grouting hole (100) on a rock mass (1) and connected to a grouting pipe, characterized in that, The device includes a grouting anchor rod (2) with one end inserted into a grouting hole (100), a sealing assembly (3) fitted onto the grouting anchor rod (2) and pressing to seal the grouting hole (100), and a sealing assembly knocking assembly (4) fitted onto the rear end of the grouting anchor rod (2) and pressing against the sealing assembly (3); the rear end of the grouting anchor rod (2) is provided with a connecting flange (21); the front end of the grouting anchor rod (2) is provided with several grout outlets; the sealing assembly knocking assembly (4) is fitted onto the connecting flange (21); the sealing assembly (3) consists of a first sealing body and a second sealing body that are conical in shape, formed by two halves; The first sealing body includes a first conical body (311), a first central hole (315) opened in the first conical body (311), a first notch (312) and a second notch (313) opened on the upper inner side of the first conical body (311), and connecting threaded holes (314) corresponding to the first notch (312) and the second notch (313); The second sealing body includes a second cone (321), a second central hole (325) opened in the second cone (321), a first upper boss (322) and a second upper boss (323) disposed on the upper part of the second cone (321), and stepped holes (324) disposed on the first upper boss (322) and the second upper boss (323) respectively; the first notch (312) is complementary to the first upper boss (322), and the second notch (313) is complementary to the second upper boss (323); the connecting threaded hole (314) and the stepped hole (324) are provided with internal hexagonal screws; the first central hole (315) and the second central hole (325) are sleeved on the grouting anchor (2).

2. The grouting device for advanced drilling according to claim 1, characterized in that, The sealing assembly knocking component (4) includes a U-shaped opening tube (41), a horseshoe-shaped seat (42) disposed at the bottom of the U-shaped opening tube (41), and a columnar platform (43) disposed at the top of the U-shaped opening tube (41); the U-shaped opening tube (41) is sleeved on the connecting flange (21); the horseshoe-shaped seat (42) is pressed against the sealing assembly (3); the inner diameter of the U-shaped opening tube (41) is larger than the diameter of the connecting flange (21).

3. A grouting device for advanced drilling according to claim 1 or 2, characterized in that, The inner side of the first cone (311) is provided with a first boss (316) and a second boss (317); the inner side of the second cone (321) is provided with a third notch (326) and a fourth notch (327); the third notch (326) is complementary to the first boss (316), and the fourth notch (327) is complementary to the second boss (317).

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