Magnetic type trepanning positioner

Abstract

The utility model discloses a magnetic type trepanning positioner, and belongs to the technical field of drilling support auxiliary devices. The utility model aims to provide a magnetic type trepanning positioner which is portable and convenient and effective to use. According to the technical scheme, the magnetic type trepanning positioner comprises a disc body, an annular magnet and a sleeve, the disc body is a round flat plate, a circle of annular groove is formed in the end face of one side of the disc body, the annular magnet is fixed in the annular groove, a through hole is formed in the center of the disc body, one end of the sleeve is fixed to the through hole in the center of the disc body, and the other end of the sleeve is fixed to the disc body. The diameter of the through hole is matched with the inner diameter or the outer diameter of the sleeve, and a plurality of fixing holes are evenly distributed in the edge of the disc body. The auxiliary drilling device is used for assisting in drilling when the anchor rod is additionally driven in the middle of the protecting net.

Description

Technical Field

[0001] The utility model discloses a magnetic hole locator, which belongs to the technical field of drilling support auxiliary devices. Background Art

[0002] Coal mines in my country are mainly mined underground, which requires the excavation of a large number of tunnels underground. The use of tunnel support to keep the tunnels unobstructed and the surrounding rock stable is of great significance to coal mine construction and production. Anchor mesh support is a support method widely used underground in coal mines, with good support effects and low maintenance costs. When failed or unqualified anchor rods are found, or there are bulging problems, additional anchor rods need to be driven. To drive additional anchor rods, it is necessary to drill holes in the middle of the metal protective mesh. When using a drill to drill holes, positioning difficulties often occur, and the drill may get entangled in the metal mesh, resulting in time and work delays when drilling holes, and there are certain safety hazards. In order to avoid this situation, a piece of the metal protective mesh at the location where the hole needs to be drilled is generally cut off. However, this reduces the support effect, so a convenient and practical hole locator is needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a portable, easy-to-use and effective magnetic hole locator.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a magnetic hole locator, comprising a disk body, an annular magnet and a sleeve. The disk body is a circular flat plate, and a circle of annular grooves is opened on one end face of the disk body. The annular magnet is fixed in the annular groove. A through hole is opened in the center of the disk body, and one end of the sleeve is fixed at the through hole in the center of the disk body. The diameter of the through hole is adapted to the inner diameter or outer diameter of the sleeve.

[0005] Preferably, a plurality of fixing holes are evenly distributed on the edge of the disc body.

[0006] Preferably, the number of the fixing holes is four.

[0007] Preferably, the disc body is made of iron.

[0008] Preferably, the annular magnet and the disc body are bonded.

[0009] Preferably, the annular magnet and the sleeve are located on the same side of the disc body.

[0010] Preferably, the length of the sleeve is 20-40 cm.

[0011] Preferably, the diameter of the disk is 30-40 cm.

[0012] Compared with the prior art, the present invention has the following beneficial effects.

[0013] The utility model can well complete the drilling positioning without cutting the mesh, so that the drilling hole rate is high, the mesh is not twisted, the safety is significantly improved, and the hole opening efficiency is greatly improved. In addition, the utility model has a simple structure and is easy to use, and the construction workers have a high acceptance rate and high utilization rate when drilling holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 for Figure 1 Bottom view of .

[0017] Figure 3 This is an exploded view of the present invention.

[0018] In the figure: 1 is a disk body, 2 is an annular magnet, 3 is a sleeve, 4 is an annular groove, 5 is a through hole, and 6 is a fixing hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0021] The utility model provides the following embodiments.

[0022] like Figure 1 、 Figure 2 、 Figure 3 As shown, the utility model is a magnetic hole locator, including a disc 1, an annular magnet 2 and a sleeve 3. The disc 1 is a circular flat plate. An annular groove 4 is formed on one end surface of the disc 1. The annular magnet 2 is fixed in the annular groove 4. A through hole 5 is formed in the center of the disc 1. One end of the sleeve 3 is fixed to the through hole 5 in the center of the disc 1. The diameter of the through hole 5 is adapted to the inner diameter or outer diameter of the sleeve 3. That is, the sleeve 3 can be fixed on the end surface of the disc 1 or fixed in the through hole 5. The inner diameters of the through hole 5 and the sleeve 3 are adapted to the diameter of the auxiliary drill bit.

[0023] A plurality of fixing holes 6 are evenly distributed on the edge of the disc body 1 .

[0024] The number of the fixing holes 6 is four.

[0025] The material of the disk body 1 is iron.

[0026] The annular magnet 2 is bonded to the disc body 1. The annular magnet 2 can be directly adsorbed on the iron disc body 1. If the disc body 1 is not made of iron, or for greater stability, glue can be applied between the disc body 1 and the annular magnet 2.

[0027] The annular magnet 2 and the sleeve 3 are located on the same side of the disc body 1 .

[0028] The length of the sleeve 3 is 20-40 cm.

[0029] Preferably, the diameter of the disk body 1 is 30-40 cm.

[0030] The method of using the utility model is as follows.

[0031] When drilling a hole with a helper drill to add an anchor bolt, first align the sleeve 3 of the present invention with the designated location where the hole needs to be drilled, insert it into the tunnel wall, and adsorb the wire mesh on the annular magnet 2. For greater stability, the present invention can be tied to the wire mesh through the fixing hole 6 with a wire, and then the drill bit of the helper drill is inserted into the sleeve 3 to drill the hole. After the hole is drilled, the present invention is removed and can be reused. The present invention can effectively prevent the mesh from being twisted during drilling without damaging the mesh, has a simple structure, is easy to use, and is highly accepted by construction workers.

[0032] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A magnetic hole locator, characterized by: The invention comprises a disc body (1), an annular magnet (2) and a sleeve (3). The disc body (1) is a circular flat plate. A circle of annular grooves (4) are formed on one end surface of the disc body (1). The annular magnet (2) is fixed in the annular groove (4). A through hole (5) is formed in the center of the disc body (1). One end of the sleeve (3) is fixed in the through hole (5) in the center of the disc body (1). The diameter of the through hole (5) is adapted to the inner diameter or outer diameter of the sleeve (3).

2. The magnetic hole locator according to claim 1, characterized in that: A plurality of fixing holes (6) are evenly distributed on the edge of the disk body (1).

3. The magnetic hole locator according to claim 2, characterized in that: The number of the fixing holes (6) is four.

4. A magnetic hole locator according to claim 1 or 2, characterized in that: The material of the disc body (1) is iron.

5. The magnetic hole locator according to claim 1 or 2, characterized in that: The annular magnet (2) and the disk body (1) are bonded.

6. The magnetic hole locator according to claim 1 or 2, characterized in that: The annular magnet (2) and the sleeve (3) are located on the same side of the disc body (1).

7. The magnetic hole locator according to claim 1 or 2, characterized in that: The length of the sleeve (3) is 20-40 cm.

8. The magnetic hole locator according to claim 1 or 2, characterized in that: The diameter of the disk (1) is 30-40 cm.

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