Tunnel blasting wedge-shaped slotting hole and auxiliary hole positioning device

Abstract

The utility model relates to a wedge-shaped slotting hole and auxiliary hole positioning device for tunnel blasting, and aims to improve the hole positioning precision and efficiency in tunnel excavation operation. The device mainly comprises a main positioning frame, a telescopic stand column, a transverse supporting rod, an auxiliary positioning rod, a guide sleeve, a base, an operation platform, a guide ring, a spirit bubble, a locking bolt and the like. The main positioning frame is composed of telescopic stand columns and transverse supporting rods, an adsorption type base is arranged at the bottom of the main positioning frame, and the main positioning frame can be rapidly and firmly fixed to a tunnel excavation face. The guide sleeve is installed on the main positioning frame, the inclination angle can be adjusted according to needs, it is ensured that the slotting angle is accurate, and different tunnel excavation requirements are met. The auxiliary positioning rod is connected with the main positioning frame through a buckle structure and provided with positioning marks at equal intervals, and the auxiliary positioning rod is used for transverse positioning of the auxiliary hole. The operation platform is integrated with a gradienter and an electronic distance measuring module to ensure that the positioning precision meets the requirement. The device can meet the requirements of various tunnel construction sites through the detachable structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel blasting technical field, concretely relates to a tunnel blasting wedge slotting hole and auxiliary hole positioning device. BACKGROUND

[0002] With the rapid development of tunnel engineering, especially in the fields of mine, subway and highway tunnel, tunnel blasting excavation technology has become one of the key technologies. In the traditional tunnel blasting operation, accurate positioning of slotting hole and auxiliary hole is crucial to ensure the blasting effect. However, the existing tunnel blasting hole positioning device has certain limitations.

[0003] The existing hole positioning device often relies on manual or simple mechanical device for positioning, which is easily disturbed by geological conditions, construction environment and other factors, resulting in hole deviation, and further affecting the blasting effect and increasing the difficulty of subsequent engineering. Moreover, the structure of the traditional positioning device is relatively fixed, which is difficult to adapt to the changing angle and environmental conditions in the tunnel excavation process, resulting in poor applicability of the positioning device and affecting the work efficiency. The hole position positioning device in the prior art often needs to be adjusted and set multiple times, causing delay in construction period, and may cause frequent equipment maintenance or replacement, increasing the construction cost.

[0004] Therefore, how to improve the accuracy and work efficiency of tunnel blasting hole positioning, especially in complex tunnel environment, has become a big problem in current tunnel blasting technology. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a tunnel blasting wedge slotting hole and auxiliary hole positioning device, which aims to solve the problems of insufficient hole position precision, inconvenient positioning adjustment and low work efficiency in the prior art, and provides a high-precision, high-adaptability and easy-to-operate tunnel blasting hole positioning solution.

[0006] Based on one main aspect of the utility model, a tunnel blasting wedge slotting hole and auxiliary hole positioning device is provided, which comprises:

[0007] The main positioning frame is composed of telescopic vertical column and horizontal support rod, and is provided with adsorptive base at the bottom for fixing on the tunnel excavation surface;

[0008] The angle guide assembly comprises a plurality of guide sleeves slidably installed on the main positioning frame, and the central axis of each guide sleeve and the longitudinal center line of the main positioning frame form a preset slotting angle;

[0009] The angle guiding assembly allows the guiding sleeve to be adjusted in angle as needed, ensuring the slotting angle to be accurate and meet the design requirements of tunnel blasting. The inclination angle of the guiding sleeve can be adjusted by rotating the locking bolt, and the adjustment angle range is 0°-60°, providing diversified angle selection to adapt to different tunnel excavation conditions.

[0010] The auxiliary positioning rod is arranged perpendicularly to the transverse support rod of the main positioning frame, and the rod body is provided with equally spaced positioning marks for assisting the transverse positioning of the hole. The auxiliary positioning rod is arranged on the transverse support rod of the main positioning frame and is arranged perpendicularly to the transverse support rod. The rod body is uniformly provided with equally spaced positioning marks for assisting the transverse positioning of the hole, ensuring that the position of the auxiliary hole is within the accuracy range. The auxiliary positioning rod is connected with the main positioning frame through a buckle structure and is equipped with a level to ensure the accuracy of transverse positioning, thereby greatly improving the hole position accuracy.

[0011] The device body is composed of a main positioning frame, an angle guiding assembly, and an auxiliary positioning rod. The main positioning frame 1 is spliced by sectional aluminum alloy profiles, including telescopic columns and transverse support rods, which can be quickly disassembled and assembled through a latch to adapt to different tunnel cross-section sizes. The bottom is configured with a suction base, which has a built-in vacuum chuck and a manual air valve, allowing it to be quickly attached to the tunnel wall and remain stable. The transverse support rod is provided with a level bubble at the end for calibrating the overall levelness of the device. The surface of the main positioning frame is covered with a reflective coating, and the scale markings are made of fluorescent material to ensure visibility in low light environments.

[0012] In some embodiments, as a further preferred solution, the telescopic column is provided with a suction base at the bottom, and the base is provided with a built-in vacuum chuck and a manual air valve for quick fixation to the tunnel wall.

[0013] In some embodiments, as a further preferred solution, the inclination angle of the guiding sleeve is adjusted by rotating the locking bolt, and the angle range is 0°-60°.

[0014] In some embodiments, as a further preferred solution, the end of the guiding sleeve is provided with a wear-resistant guide ring, and the guide ring is embedded with a tungsten carbide alloy layer.

[0015] In some embodiments, as a further preferred solution, the main positioning frame is spliced by sectional aluminum alloy profiles, and is quickly disassembled and assembled through a latch. This design allows the device to be quickly disassembled, transported, and reassembled between multiple construction sites, providing high convenience and flexibility.

[0016] In some embodiments, as a further preferred solution, the main support middle part is provided with a folding operation platform, and a laser calibrator and an electronic distance measuring module are integrated on the platform to monitor the installation accuracy of the device in real time.

[0017] In some embodiments, as a further preferred solution, the auxiliary positioning rod is connected with the main positioning frame through a buckle structure and is provided with a level to ensure the transverse positioning accuracy.

[0018] In some embodiments, as a further preferred solution, the surface of the main positioning frame is coated with a reflective coating, and the scale mark is made of fluorescent material. The visibility of the device is improved, especially in low light environments. The surface of the main positioning frame is coated with a reflective coating, and the scale mark is made of fluorescent material. This design facilitates accurate operation by the operator in different environments, ensuring clear and accurate hole positioning.

[0019] In some embodiments, as a further preferred solution, the end of the transverse support rod of the main positioning frame is provided with a level bubble for calibrating the installation levelness of the device. The operator can easily confirm whether the device is in a horizontal state through the level bubble, thereby avoiding positioning errors caused by uneven installation of the device.

[0020] In some embodiments, as a further preferred solution, the device comprises a quick disassembly mechanism to facilitate transportation and reorganization between multiple construction points.

[0021] In some embodiments, as a further preferred solution, the device comprises a quick disassembly mechanism to facilitate transportation and reorganization between multiple construction points.

[0022] The telescopic column and the modular structure make it compatible with different tunnel height and slotting depth requirements. The adjustable slotting angle and the telescopic structure meet the requirements of diversified blasting parameters, especially suitable for soft rock to hard rock strata. The design of the wear-resistant guide ring and the vacuum adsorption base effectively responds to complex rock surface conditions and prolongs the service life of the device.

[0023] Advantages and beneficial effects of the utility model:

[0024] The device can realize accurate positioning of the tunnel slotting hole and the auxiliary hole through the cooperation of the main positioning frame, the guide sleeve, the auxiliary positioning rod and other components. The adjustable angle range of the guide sleeve ensures that the angle is adjusted according to the actual tunnel excavation requirements, thereby ensuring the accuracy of the hole position. The equally spaced positioning marks on the auxiliary positioning rod effectively assist in transverse positioning, ensuring the accuracy of the auxiliary hole position.

[0025] Moreover, the device can ensure the horizontal installation of the main positioning frame through the level bubble, and avoid the hole position error caused by the uneven equipment.

[0026] Due to the device of the utility model adopts high-strength, durable material, such as aluminum alloy profile and tungsten carbide alloy layer, can simultaneously carry out quick disassembly, installation and transportation, reduces the artificial and time cost.

[0027] Through the device of the utility model, the positioning accuracy and efficiency in the tunnel excavation operation can be effectively improved, the artificial error is reduced, the operation safety is enhanced, and the device has strong durability and adaptability, and is widely applicable to the blasting operation under different tunnel excavation conditions. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, according to these drawings, other drawings obtained without creative labor still belong to the scope of the utility model.

[0029] Figure 1 It is the schematic view of the embodiment of the utility model.

[0030] Figure 2 It is the component schematic view of the embodiment of the utility model.

[0031] 1-main positioning frame, 2-telescopic column, 3-transverse support rod, 4-assistant positioning rod, 5-guide sleeve, 6-base, 7-operation platform, 8-guide ring, 9-level bubble, 10-locking bolt. DETAILED DESCRIPTION

[0032] The preferred embodiments of the utility model will be described in detail below, so that the purpose, characteristics and advantages of the utility model can be more clearly understood.It should be understood that the following embodiments are not a limitation on the scope of the utility model, but only to illustrate the essential spirit of the technical scheme of the utility model.

[0033] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0034] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] Example:

[0037] like Figure 1 As shown, the device of this utility model includes a main positioning frame 1, an angle guide assembly, an auxiliary positioning rod 4, and matching adjustment and fixing components. The main positioning frame 1 is the core support structure of the device, the angle guide assembly is used to control the direction of the wedge-shaped slotted hole, and the auxiliary positioning rod 4 is used to assist in the lateral positioning of the hole. The specific structure and function of each component are as follows:

[0038] The main positioning frame 1 consists of a telescopic column 2 and a transverse support rod 3. The telescopic column 2 adopts a sleeve structure, with the inner column nested inside the outer sleeve, and the telescopic length is fixed by locking bolts to adapt to different tunnel heights. The transverse support rod 3 is also telescopic, facilitating transportation and on-site deployment. A spirit level 9 is installed at the end of the transverse support rod 3. Figure 1 It is used to calibrate the horizontal state of the main positioning frame and avoid positioning deviation due to tilting.

[0039] The base of the column is equipped with an adsorption base 6, which integrates a vacuum suction cup. It can be quickly adsorbed onto the tunnel wall by a manual air pump to ensure the stability of the device. The surface of the base 6 is equipped with anti-slip texture to further increase friction.

[0040] The auxiliary positioning rod 4 is arranged perpendicular to the transverse support rod of the main positioning frame. The surface of the rod is marked with equally spaced scale marks to quickly determine the transverse position of the auxiliary hole. The auxiliary positioning rod 4 is connected to the main positioning frame 1 by a magnetic buckle. The buckle position can slide along the transverse support rod 3 to adapt to tunnels with different cross-sectional widths.

[0041] The middle part of the main positioning frame 1 is provided with a folding operation platform 7, which can carry drilling equipment after being unfolded. The surface of the platform is integrated with the following functional modules:

[0042] Laser calibrator: emits a vertical laser line to assist the main positioning frame 1 in aligning with the tunnel axis;

[0043] Electronic range finder: displays the spacing data of the slotting hole and the auxiliary hole in real time;

[0044] Tool slot: used for storing small tools such as wrenches and bolts.

[0045] As shown in Figure 2 The angle guide assembly includes two groups of symmetrically arranged guide sleeves 5, which are installed on the transverse support rods 3 of the main positioning frame 1 through sliding rails and can slide along the rod bodies to adjust the spacing of the slotting holes. The axis of the guide sleeve 5 forms a preset slotting angle with the longitudinal center line of the main positioning frame 1, and the angle of the sleeve is fixed by rotating the locking bolt 10.

[0046] The front end of the guide sleeve 5 is provided with a wear-resistant guide ring 8, which is embedded with a tungsten carbide alloy layer, used to reduce the friction loss between the drill bit and the sleeve during drilling, and prolong the service life of the device.

[0047] Usage process:

[0048] Installation and fixation: unfold the main positioning frame 1, adjust the telescopic column 2 to the height of the tunnel, fix the device on the excavation surface through the adsorbing base 6, and calibrate the levelness by using the horizontal bubble 9.

[0049] Angle adjustment: slide the guide sleeve 5 to the target spacing, rotate the locking bolt 10 to fix the slotting angle, and adjust the alignment of the device with the tunnel axis by using the laser calibrator.

[0050] Auxiliary hole positioning: unfold the auxiliary positioning rod 4, determine the transverse position of the auxiliary hole according to the scale mark, and fix the rod body by using the magnetic buckle.

[0051] Drilling construction: insert the drill bit into the guide ring 8 of the guide sleeve 5, drill along the preset angle to the limiting depth, and repeat the operation to complete all the slotting holes and auxiliary holes.

[0052] The parts not described in the utility model are known to those skilled in the art.

[0053] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for locating a wedge cut hole and a starter hole for a tunnel blast, characterized in that The tunnel blasting wedge-shaped cutting hole and auxiliary hole positioning device comprises a main positioning frame (1) composed of telescopic columns and transverse support rods (3), a suction base (6) is arranged at the bottom of the main positioning frame (1) for fixing on the tunnel excavation surface, an angle guide assembly is arranged on the main positioning frame (1), the angle guide assembly comprises a plurality of guide sleeves (5) slidably arranged on the main positioning frame (1), and the central axis of each guide sleeve (5) forms a preset cutting angle with the longitudinal center line of the main positioning frame (1), and an auxiliary positioning rod (4) is arranged perpendicularly to the transverse support rod (3) of the main positioning frame (1), the auxiliary positioning rod (4) is provided with equidistant positioning marks on the rod body for assisting the transverse positioning of the hole. The telescopic column (2) is provided with a suction base (6) at the bottom, the suction base (6) is provided with a vacuum suction cup and a manual air suction valve, and the telescopic column (2) is quickly fixed on the tunnel wall surface. The inclination angle of the guide sleeve (5) is adjusted by a rotating locking bolt (10), and the angle range is 0°-60°.

4. The tunnel blasting wedge-shaped cutting hole and auxiliary hole positioning device according to claim 1 or 3, wherein the end of the guide sleeve (5) is provided with a wear-resistant guide ring (8), and the guide ring (8) is embedded with a tungsten carbide alloy layer.

2. The device of claim 1, wherein, The main positioning frame (1) is spliced by sectional aluminum alloy profiles, and is quickly disassembled and assembled through a bolt.

3. The device of claim 1, wherein, The middle part of the main support is provided with a folding operation platform (7), the platform is integrated with a laser calibrator and an electronic distance measuring module, and is used for monitoring the installation precision of the device in real time. The auxiliary positioning rod (4) is connected with the main positioning frame (1) through a buckle structure, and is provided with a level instrument to ensure the transverse positioning precision.

5. The device of claim 1, wherein, The surface of the main positioning frame (1) is covered with a reflective coating, and the scale mark is made of fluorescent material.

6. The device of claim 1, wherein, The end of the transverse support rod (3) of the main positioning frame (1) is provided with a level bubble (9) for calibrating the installation levelness of the device.

7. The device of claim 1, wherein, The device comprises a quick disassembly mechanism, which is convenient for transportation and recombination between multiple construction points.

8. The device of claim 1, wherein, ​ 9. The device of claim 1, wherein, ​ 10. The device of claim 1, wherein, ​

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