Auxiliary positioning equipment for tunnel blasting drilling

Abstract

The utility model discloses tunnel blasting drilling auxiliary positioning equipment which comprises a U-shaped frame, supporting legs are installed at the bottom of the U-shaped frame, a protractor is installed at the upper end of the U-shaped frame through a supporting plate, the front side wall of the protractor is connected with an angle measuring scale in a rotating mode, the upper end of the U-shaped frame is connected with a vertical measuring scale in a horizontal sliding mode, and the vertical measuring scale is connected with a horizontal sliding rod. The upper end of the U-shaped frame is symmetrically connected with two connecting rods in a telescopic and sliding mode, and the upper ends of the two connecting rods are jointly and fixedly connected with a horizontal measuring scale. The tunnel blasting drill hole positioning device is reasonable in structural design, can perform auxiliary positioning on tunnel blasting drill holes, can perform telescopic adjustment, can perform accurate positioning on drill holes at different positions, and guarantees subsequent drilling and blasting quality.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel blasting, in particular to a tunnel blasting drilling auxiliary positioning device. Background Art

[0002] Tunnels are the focus and key projects of highway and railway construction. With the development of railway construction and the advancement of science and technology, tunnel excavation methods have developed rapidly. The more commonly used excavation methods are drilling and blasting, shield method and tunnel boring machine method. Since the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, it is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels. Therefore, the drilling and blasting method is still a commonly used tunnel excavation method at home and abroad.

[0003] At present, when using the drilling and blasting method to excavate a tunnel, it is usually necessary to first determine the blasthole arrangement of the excavation section. The tunnel blasting drilling has high requirements on quality and accuracy, and the hole position, direction and depth must be accurate. Therefore, it is necessary to accurately locate the blasting borehole. For this purpose, we have designed a tunnel blasting drilling auxiliary positioning device. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a tunnel blasting drilling auxiliary positioning device, which can assist in the positioning of tunnel blasting drilling, and can be telescopically adjusted to accurately position the drillings at different positions, thereby ensuring the quality of subsequent drilling and blasting.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tunnel blasting drilling auxiliary positioning device comprises a U-shaped frame, wherein a support foot is installed at the bottom of the U-shaped frame, a protractor is installed at the upper end of the U-shaped frame through a support plate, an angle measuring ruler is rotatably connected to the front side wall of the protractor, a vertical measuring ruler is horizontally slidably connected to the upper end of the U-shaped frame, two connecting rods are symmetrically telescopically slidably connected to the upper end of the U-shaped frame, and a horizontal measuring ruler is fixedly connected to the upper ends of the two connecting rods.

[0007] Preferably, the angle measuring ruler comprises a first hollow measuring ruler rotatably connected to the front side wall of the protractor, the end of the first hollow measuring ruler penetrates and is slidably connected with a first telescopic measuring ruler, and the upper end of the first telescopic measuring ruler is fixedly connected to a first pull block that penetrates the upper end side wall of the first hollow measuring ruler and extends above it.

[0008] Preferably, a horizontal slide groove is provided at the upper end of the U-shaped frame, and the vertical measuring ruler is slidably connected in the horizontal slide groove.

[0009] Preferably, the vertical measuring ruler includes a second hollow measuring ruler horizontally slidably connected in a horizontal slide groove, the upper end of the second hollow measuring ruler is slidably connected with a second telescopic measuring ruler, and the front side wall of the second telescopic measuring ruler is fixedly connected with a second pull block that penetrates the front side wall of the second hollow measuring ruler and extends to the front side thereof.

[0010] Preferably, two vertical slide grooves are symmetrically provided at the upper end of the U-shaped frame, and the two connecting rods are slidably connected in the two vertical slide grooves respectively.

[0011] Preferably, the horizontal measuring ruler includes a third hollow measuring ruler fixedly connected to the upper ends of the two connecting rods, both end side walls of the third hollow measuring ruler are slidably connected with a third telescopic measuring ruler, and the front side walls of the two third telescopic measuring rulers are fixedly connected with a third pull block that penetrates the front side walls of the third telescopic measuring ruler and extends to the front side thereof.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the tunnel blasting drilling auxiliary positioning device, the first hollow measuring ruler rotates relative to the protractor to assist in positioning the drilling angle, and the first telescopic measuring ruler cooperates with the first hollow measuring ruler to increase the length of the hollow measuring ruler, which is beneficial to auxiliary positioning of drilling.

[0014] 2. The tunnel blasting drilling auxiliary positioning equipment, the second hollow measuring ruler and the second telescopic measuring ruler can cooperate to assist in the positioning of holes drilled at different heights, and the third hollow measuring ruler and the third telescopic measuring ruler can cooperate to assist in the positioning of holes drilled at different levels, thus ensuring the accuracy of the blasting drilling position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first structural schematic diagram of a tunnel blasting drilling auxiliary positioning device proposed by the utility model;

[0016] Figure 2 This is a second structural schematic diagram of a tunnel blasting drilling auxiliary positioning device proposed by the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0018] In the figure: 1. U-shaped frame; 2. supporting feet; 3. protractor; 4. first hollow measuring ruler; 5. first telescopic measuring ruler; 6. horizontal slide; 7. second hollow measuring ruler; 8. second telescopic measuring ruler; 9. connecting rod; 10. third hollow measuring ruler; 11. third telescopic measuring ruler. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 , a tunnel blasting drilling auxiliary positioning device, comprising a U-shaped frame 1, a support leg 2 is installed at the bottom of the U-shaped frame 1, the setting of the support leg 2 is conducive to ensuring the stability of the U-shaped frame 1, a protractor 3 is installed on the upper end of the U-shaped frame 1 through a support plate, the front side wall of the protractor 3 is rotatably connected with an angle measuring ruler, the axis of rotation of the angle measuring ruler is the same as the center of the protractor, the angle measuring ruler comprises a first hollow measuring ruler 4 rotatably connected to the front side wall of the protractor 3, the end of the first hollow measuring ruler 4 is penetrated and slidably connected with a first telescopic measuring ruler 5, the first telescopic measuring ruler 5 is telescopic at the end of the first hollow measuring ruler 4, and the length of the first hollow measuring ruler 4 can be increased, the upper end of the first telescopic measuring ruler 5 is fixedly connected to the first pull block that penetrates the upper end side wall of the first hollow measuring ruler 4 and extends to the upper side wall of the first hollow measuring ruler 4, and the first telescopic measuring ruler 5 can be telescoped outward of the first hollow measuring ruler 4 by pulling the first pull block;

[0021] The upper end of the U-shaped frame 1 is horizontally slidably connected with a vertical measuring ruler, and a horizontal slide groove 6 is provided at the upper end of the U-shaped frame 1. The vertical measuring ruler is slidably connected in the horizontal slide groove 6. The vertical measuring ruler includes a second hollow measuring ruler 7 horizontally slidably connected in the horizontal slide groove 6. The upper end of the second hollow measuring ruler 7 is penetrated and slidably connected with a second telescopic measuring ruler 8. The second telescopic measuring ruler 8 moves up and down in the second hollow measuring ruler 7 to increase the length of the second hollow measuring ruler 7. The front side wall of the second telescopic measuring ruler 8 is fixedly connected with a second pull block that penetrates the front side wall of the second hollow measuring ruler 7 and extends to the front side thereof. By pulling the second pull block, the second telescopic measuring ruler 8 can be extended and retracted outside the second hollow measuring ruler 7;

[0022] The upper end of the U-shaped frame 1 is symmetrically telescopically slidably connected to two connecting rods 9, and the upper end of the U-shaped frame 1 is symmetrically provided with two vertical slide grooves, and the two connecting rods 9 are respectively slidably connected in the two vertical slide grooves. The upper ends of the two connecting rods 9 are commonly fixedly connected with a horizontal measuring ruler, and the horizontal measuring ruler includes a third hollow measuring ruler 10 commonly fixedly connected to the upper ends of the two connecting rods 9, so that the third hollow measuring ruler 10 can stably move vertically, and the side walls at both ends of the third hollow measuring ruler 10 are penetrated and slidably connected with a third telescopic measuring ruler 11, and the two third telescopic measuring rulers 11 move toward the two ends of the third hollow measuring ruler 10. The third hollow measuring ruler 10 can be telescoped outward from the side, and the length of the third hollow measuring ruler 10 can be increased. The front side walls of the two third telescopic measuring rulers 11 are fixedly connected with a third pull block that penetrates the front side wall of the third telescopic measuring ruler 11 and extends to the front side thereof. By pulling the third pull block, the third telescopic measuring ruler 11 can be telescoped outward from the third hollow measuring ruler 10. The inner side walls of the first hollow measuring ruler 4, the second hollow measuring ruler 7, and the third hollow measuring ruler 10 are all roughened, which can increase the friction force and ensure the stability of the first telescopic measuring ruler 5, the second telescopic measuring ruler 8, and the third telescopic measuring ruler 11 after telescopic movement.

[0023] The functional principle of the utility model can be explained through the following operation modes:

[0024] In the utility model, when the tunnel blasting drilling auxiliary positioning device is in use, the U-shaped frame 1 is placed horizontally on the front side of the tunnel excavation section through a level meter, and the first hollow measuring ruler 4 is rotated relative to the protractor 3 to assist in positioning the drilling angle. Pulling the first telescopic measuring ruler 5 to move it outward from the first hollow measuring ruler 4 can increase the length of the first hollow measuring ruler 4, which is conducive to auxiliary positioning of drilling.

[0025] The second hollow measuring ruler 7 can assist in positioning the height of the drill hole. The second telescopic measuring ruler 8 can move outward from the second hollow measuring ruler 7 to increase the height of the second hollow measuring ruler 7, which is beneficial for positioning drill holes at different heights. The second hollow measuring ruler 7 slides in the horizontal slide groove 6 to assist in positioning drill holes at different vertical positions.

[0026] The third hollow measuring ruler 10 can assist in locating the horizontal position of the borehole. The extension of the third telescopic measuring ruler 11 outward from the third hollow measuring ruler 10 can increase the length of the third hollow measuring ruler 10, which is beneficial for locating boreholes at different positions. The third hollow measuring ruler 10 moves vertically and cooperates with the second hollow measuring ruler 7 to assist in locating boreholes at different height levels, thereby ensuring the accuracy of the blasting drilling position.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tunnel blasting drilling auxiliary positioning device, comprising a U-shaped frame (1), characterized in that: A support foot (2) is installed at the bottom of the U-shaped frame (1); a protractor (3) is installed at the upper end of the U-shaped frame (1) via a support plate; a front side wall of the protractor (3) is rotatably connected to an angle measuring ruler; the upper end of the U-shaped frame (1) is horizontally slidably connected to a vertical measuring ruler; the upper end of the U-shaped frame (1) is symmetrically telescopically slidably connected to two connecting rods (9); the upper ends of the two connecting rods (9) are commonly fixedly connected to a horizontal measuring ruler.

2. The tunnel blasting drilling auxiliary positioning device according to claim 1 is characterized in that: The angle measuring ruler comprises a first hollow measuring ruler (4) rotatably connected to the front side wall of the protractor (3); the end of the first hollow measuring ruler (4) penetrates and is slidably connected to a first telescopic measuring ruler (5); the upper end of the first telescopic measuring ruler (5) is fixedly connected to a first pull block which penetrates the upper end side wall of the first hollow measuring ruler (4) and extends to the upper side wall thereof.

3. The tunnel blasting drilling auxiliary positioning device according to claim 1 is characterized in that: A horizontal slide groove (6) is provided at the upper end of the U-shaped frame (1), and the vertical measuring ruler is slidably connected in the horizontal slide groove (6).

4. The tunnel blasting drilling auxiliary positioning device according to claim 3 is characterized in that: The vertical measuring ruler comprises a second hollow measuring ruler (7) horizontally slidably connected in a horizontal sliding groove (6); the upper end of the second hollow measuring ruler (7) is penetrated and slidably connected with a second telescopic measuring ruler (8); the front side wall of the second telescopic measuring ruler (8) is fixedly connected with a second pull block which penetrates the front side wall of the second hollow measuring ruler (7) and extends to the front side thereof.

5. The tunnel blasting drilling auxiliary positioning device according to claim 1 is characterized in that: Two vertical slide grooves are symmetrically provided at the upper end of the U-shaped frame (1), and the two connecting rods (9) are slidably connected in the two vertical slide grooves respectively.

6. The tunnel blasting drilling auxiliary positioning device according to claim 1, characterized in that: The horizontal measuring ruler comprises a third hollow measuring ruler (10) fixedly connected to the upper ends of two connecting rods (9), the side walls at both ends of the third hollow measuring ruler (10) penetrate through and are slidably connected to third telescopic measuring rulers (11), and the front side walls of the two third telescopic measuring rulers (11) are fixedly connected to third pull blocks that penetrate through the front side walls of the third telescopic measuring ruler (11) and extend to the front side thereof.

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