Blast hole positioning device for tunnel smooth blasting

Abstract

The utility model provides a blasthole positioning device for tunnel smooth blasting. The blasthole positioning device comprises a positioning mechanism and a supporting mechanism. The positioning mechanism comprises a mounting plate and a projector, the projector is mounted on one side of the mounting plate, a storage box is fixedly connected to one side of the mounting plate, a cover plate is hinged to one side of the storage box, and a code spraying device is arranged in the storage box; the supporting mechanism comprises a bottom frame and a fixing frame, and the bottom frame is arranged at the bottom of the mounting plate; according to the utility model, the projector is arranged to project the blast hole site obtained through calculation, the hole site is directly displayed at the hole opening position in a projection manner, and the code spraying device is used for marking the hole site, so that the marking of the blast hole site is quickly completed, and when tunnel blast hole opening is continued after blasting, the projection of the blast hole site is carried out again through the projector, so that the production efficiency is improved. And therefore, the repeated workload of positioning the blast hole site is reduced, and the hole site identification can be conveniently and quickly completed.

Description

Technical Field

[0001] The utility model relates to a positioning device, in particular to a blasting hole positioning device for smooth surface blasting of a tunnel, belonging to the technical field of blasting positioning. Background Art

[0002] Tunnels are engineering buildings buried in the ground. They are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel consists of two parts: the main building and the ancillary equipment. The main building consists of the tunnel body and the tunnel door. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment. The smooth blasting method is a blasting technology that uses a series of measures to correctly drill and blast the surrounding parts of the excavation project, and finally detonates the surrounding holes;

[0003] A Chinese patent publication (CN202321579467.7) discloses a blasting hole positioning device for smooth blasting of a tunnel. The device is provided with a driving gear, a first side guard plate, a second side guard plate, an annular groove, an auxiliary sliding column, a supporting bottom frame and a half-moon gear ring. When the device is in operation, the side limiting structure composed of the first side guard plate, the second side guard plate, the annular groove and the auxiliary sliding column can provide auxiliary support and limitation from the front and rear ends of the double-link structure respectively. Compared with the method of directly driving the rotating arm to rotate by a motor, the blasting hole positioning is realized. However, the existing blasting positioning device mostly positions the blasting hole by adjusting the position of the inkjet printer. This method requires re-adjusting the inkjet printer after each blasting to position the blasting hole, which causes a lot of repetitive work, resulting in low positioning efficiency and inconvenience in quickly completing repeated positioning operations.

[0004] In order to solve the above technical problems, a blasting hole positioning device for smooth blasting in a tunnel is proposed. Utility Model Content

[0005] In view of this, the utility model provides a blasting hole positioning device for smooth surface blasting of a tunnel, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a blasting hole positioning device for smooth blasting of a tunnel, comprising a positioning mechanism and a supporting mechanism;

[0007] The positioning mechanism includes a mounting plate and a projector, wherein the projector is mounted on one side of the mounting plate, a storage box is fixedly connected to one side of the mounting plate, a cover plate is hingedly connected to one side of the storage box, and a coder is arranged inside the storage box;

[0008] The supporting mechanism includes a base frame and a fixed frame, the base frame is arranged at the bottom of the mounting plate, the fixed frame is fixedly connected to one side of the base frame, an extension frame is provided on one side of the base frame, guide rails are symmetrically installed on one side of the base frame and the extension frame, a bottom plate is provided at the bottom of the mounting plate, a slider is symmetrically fixedly connected to one side of the bottom plate, and the slider is slidably connected to the base frame through the guide rail.

[0009] Further preferably, fixing cones are evenly distributed and penetrated inside the fixing frame.

[0010] Further preferably, one side of the extension frame and the base frame are provided with a socket, one side of the extension frame is fixedly connected to a connecting plate, the connecting plate is engaged with the base frame through the socket, one side of the base frame is threadedly connected to a fixing bolt, and the fixing bolt passes through the connecting plate.

[0011] Further preferably, an electric push rod is installed on one side of the base plate, and a piston rod of the electric push rod is fixedly connected to the mounting plate.

[0012] Further preferably, one side of the base plate is evenly distributed and fixedly connected with support rods, one end of the support rod is fixedly connected with the top plate, one side of the support rod is sleeved with a sliding sleeve, the sliding sleeve is slidably connected to the support rod, and one side of the sliding sleeve is fixedly connected to the mounting plate.

[0013] Further preferably, a protective cover is mounted on the lens of the projector.

[0014] Further preferably, a lighting lamp is installed on one side of the top plate.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] First, the utility model projects the calculated blasting hole position by setting a projector, directly displays the hole position at the opening in a projection manner, and marks the hole position by a code sprayer, thereby quickly completing the identification of the blasting hole position, and when continuing to perform tunnel blasting after blasting, the blasting hole position is projected again by the projector, and the blasting hole can be quickly marked by the code sprayer, reducing the repeated workload of locating the blasting hole position, and facilitating the rapid completion of the hole position identification;

[0017] Second, the utility model sets a fixed frame to fit with the blasting surface, and cooperates with the base frame and the guide rail to facilitate the adjustment of the distance between the projector and the blasting surface, so that the hole projection generated by the projector is aligned with the blasting surface.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a bottom view of the structure of the utility model;

[0022] Figure 3 This is the installation structure diagram of the extension frame in the utility model;

[0023] Figure 4 This is a connection structure diagram of the bottom plate in the utility model;

[0024] Figure 5 This is a connection structure diagram of the mounting plate in the utility model.

[0025] Figure numerals: 10, positioning mechanism; 11, projector; 12, mounting plate; 13, bottom plate; 14, support rod; 15, top plate; 16, lighting lamp; 17, sliding sleeve; 18, protective cover; 19, storage box; 31, cover plate; 32, inkjet printer; 33, electric push rod; 20, supporting mechanism; 21, base frame; 22, fixing frame; 23, fixing cone; 24, extension frame; 25, connecting plate; 26, fixing bolt; 27, guide rail; 28, socket; 29, slider. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5As shown, an embodiment of the utility model provides a blasting hole positioning device for smooth blasting of a tunnel, which is composed of a positioning mechanism 10 and a supporting mechanism 20.

[0029] The positioning mechanism 10 includes a mounting plate 12, a projector 11 and a bottom plate 13. The projector 11 is mounted on one side of the mounting plate 12 and is used to project the calculated blasting hole positions so that the hole positions are directly mapped on the blasting surface. A storage box 19 is fixedly connected to one side of the mounting plate 12. A cover plate 31 is hinged to one side of the storage box 19. A coder 32 is provided inside the storage box 19. The coder 32 is used to quickly mark the blasting hole positions, which is convenient for subsequent drilling of the blasting hole positions. The bottom plate 13 is evenly spaced on one side. The cloth is fixedly connected with a support rod 14, one end of the support rod 14 is fixedly connected with a top plate 15, one side of the support rod 14 is provided with a sliding sleeve 17, the sliding sleeve 17 is slidably connected to the support rod 14, one side of the sliding sleeve 17 is fixedly connected to the mounting plate 12, and an electric push rod 33 is installed on one side of the bottom plate 13, the piston rod of the electric push rod 33 is fixedly connected to the mounting plate 12, so that the mounting plate 12 and the projector 11 can be adjusted up and down as needed, so as to align the hole projected by the projector 11 with the blasting surface.

[0030] In one embodiment, in order to prevent the lens of the projector 11 from being damaged, a protective cover 18 is mounted on the lens of the projector 11 .

[0031] In one embodiment, in order to prevent insufficient lighting in the tunnel from affecting the clarity of the projector 11 , a lighting lamp 16 is installed on one side of the top plate 15 .

[0032] The supporting mechanism 20 includes a base frame 21, a fixed frame 22 and an extension frame 24. The base frame 21 is arranged at the bottom of the mounting plate 12, and the fixed frame 22 is fixedly connected to one side of the base frame 21, so that the fixed frame 22 fits the blasting surface, which is convenient for aligning the projector 11 with the blasting surface. The extension frame 24 is arranged on one side of the fixed frame 22. One side of the base frame 21 and the extension frame 24 are symmetrically installed with guide rails 27. The extension frame 24 extends the movable range of the projector 11. A bottom plate 13 is provided at the bottom of the mounting plate 12, and a slider 29 is symmetrically fixedly connected to one side of the bottom plate 13. The slider 29 is slidably connected to the base frame 21 through the guide rail 27. The slider 29 cooperates with the guide rail 27 to facilitate the movement of the projector 11, and it is convenient to adjust the distance between the projector 11 and the blasting surface according to needs.

[0033] In one embodiment, in order to prevent the fixing frame 22 from deviating and causing the blasting hole position to deviate, fixing cones 23 are evenly distributed and penetrated inside the fixing frame 22 .

[0034] In one embodiment, in order to facilitate the installation and removal of the extension frame 24, a socket 28 is provided on one side of the extension frame 24 and the base frame 21, and a connecting plate 25 is fixedly connected to one side of the extension frame 24. The connecting plate 25 is engaged with the base frame 21 through the socket 28. A fixing bolt 26 is threadedly connected to one side of the base frame 21, and the fixing bolt 26 passes through the connecting plate 25.

[0035] When the utility model is in operation: the blasting hole positions are calculated according to the requirements of tunnel opening, the hole position distribution map is entered into the projector 11, the fixing frame 22 is fitted with the blasting surface, the fixing frame 22 and the blasting surface are fixed temporarily with the fixing cone 23, the bottom plate 13 is moved, the distance between the projector 11 and the blasting surface is adjusted, the blasting hole positions are projected on the blasting surface by the projector 11, the mounting plate 12 is driven up and down by the electric push rod 33, the position of the projector 11 is adjusted to make the projected blasting hole positions fit with the blasting surface, the cover plate 31 is opened and the inkjet printer 32 is taken out, marking is performed according to the projected blasting hole positions, the fixing frame 22 is removed after the marking of all blasting hole positions is completed, holes are opened at the marked positions and blasting is performed, and the subsequent blasting of the same tunnel only needs to reuse the projector 11 in combination with the inkjet printer 32 to mark the hole positions.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A blasting hole positioning device for smooth blasting of a tunnel, characterized by: It comprises a positioning mechanism (10) and a supporting mechanism (20); The positioning mechanism (10) comprises a mounting plate (12) and a projector (11), wherein the projector (11) is mounted on one side of the mounting plate (12), a storage box (19) is fixedly connected to one side of the mounting plate (12), a cover plate (31) is hingedly connected to one side of the storage box (19), and a code sprayer (32) is provided inside the storage box (19); The support mechanism (20) comprises a base frame (21) and a fixed frame (22); the base frame (21) is arranged at the bottom of the mounting plate (12); the fixed frame (22) is fixedly connected to one side of the base frame (21); an extension frame (24) is arranged on one side of the base frame (21); guide rails (27) are symmetrically installed on one side of the base frame (21) and the extension frame (24); a bottom plate (13) is arranged at the bottom of the mounting plate (12); a slider (29) is symmetrically fixedly connected to one side of the bottom plate (13); and the slider (29) is slidably connected to the base frame (21) via the guide rail (27).

2. The blasting hole positioning device for smooth blasting of a tunnel according to claim 1, characterized in that: The interior of the fixing frame (22) is evenly distributed with fixing cones (23) running through it.

3. The blasting hole positioning device for smooth blasting of a tunnel according to claim 1, characterized in that: One side of the extension frame (24) and the bottom frame (21) are both provided with a plug hole (28); one side of the extension frame (24) is fixedly connected with a connecting plate (25); the connecting plate (25) is engaged with the bottom frame (21) through the plug hole (28); one side of the bottom frame (21) is threadedly connected with a fixing bolt (26); the fixing bolt (26) passes through the connecting plate (25).

4. The blasting hole positioning device for smooth blasting of a tunnel according to claim 1, characterized in that: An electric push rod (33) is installed on one side of the base plate (13), and a piston rod of the electric push rod (33) is fixedly connected to the mounting plate (12).

5. The blasting hole positioning device for smooth blasting of a tunnel according to claim 1, characterized in that: One side of the bottom plate (13) is fixedly connected to support rods (14) at equal intervals, one end of the support rod (14) is fixedly connected to a top plate (15), one side of the support rod (14) is sleeved with a sliding sleeve (17), the sliding sleeve (17) is slidably connected to the support rod (14), and one side of the sliding sleeve (17) is fixedly connected to the mounting plate (12).

6. The blasting hole positioning device for smooth blasting of a tunnel according to claim 1, characterized in that: The lens of the projector (11) is provided with a protective cover (18).

7. The blasting hole positioning device for smooth blasting of a tunnel according to claim 5, characterized in that: A lighting lamp (16) is installed on one side of the top plate (15).

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