A portable setting device for tunnel surveying marks

Abstract

The utility model discloses a portable layout device for tunnel surveying sign, including movable trolley, arm guard, electric telescopic cylinder, firing mechanism, powder cartridge, steel nail, the arm guard rotatably arranged on movable trolley, the telescopic end of electric telescopic cylinder with arm guard articulates, the bottom of electric telescopic cylinder with movable trolley is connected, and arm guard and electric telescopic cylinder constitute inverted V type support, electric telescopic link is provided in the arm guard, electric telescopic link is connected firing mechanism through height extension link, powder cartridge sets up on firing mechanism, the gunpowder is provided in powder cartridge, steel nail with powder cartridge is connected, and steel nail has surveying sign. The utility model can carry out surveying sign layout to the tunnel of different free height, different angle, and the security is high.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a portable deployment device for tunnel survey markers. Background Technology

[0002] With the development of highway tunnel construction, the original two-lane tunnels have expanded to three-lane and four-lane tunnels, and the cross-sectional dimensions of tunnels have also become larger. For large-section, cut-and-cover tunnels, setting up monitoring points above the arch waist and at the arch crown is a prerequisite for monitoring work. When the excavation cross-section is large, personnel cannot directly reach above the arch waist and at the arch crown to set up monitoring points. After excavation, personnel generally rely on construction platforms or other construction machinery to reach designated locations in the tunnel to drill holes and install reflectors or small prisms.

[0003] The existing methods have the following technical problems: setting up monitoring points at heights is dangerous for the monitoring personnel; the damage rate of monitoring points inside the tunnel is relatively high; when machinery cannot reach the site due to construction conditions or other factors, it is necessary to re-set up monitoring points at higher locations. Furthermore, the same tunnel may involve different construction methods, such as the step-by-step method, the three-step method, and the full-section method. The height of the construction points also varies for different sections. The height of the construction platform is sufficient, but it is inconvenient to move. The excavator is relatively easy to move, but its boom reach is not high enough. The construction process of tunnels is complicated, such as multiple spraying and anchoring operations, which can easily cause damage to the monitoring points or contamination of the mirror surface, making monitoring impossible. Alternatively, the deployment of monitoring points may be delayed due to on-site coordination of the platform or excavator. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a portable deployment device for tunnel measurement markers that is safe and can be used to deploy measurement markers for tunnels at different altitudes and angles.

[0005] This utility model is achieved through the following technical solution: a portable deployment device for tunnel measurement markers, comprising a movable trolley, a protective arm, an electric telescopic cylinder, a firing mechanism, a gunpowder cartridge, and a steel nail. The protective arm is rotatably mounted on the movable trolley. The telescopic end of the electric telescopic cylinder is hinged to the protective arm, and the bottom end of the electric telescopic cylinder is connected to the movable trolley. The protective arm and the electric telescopic cylinder form an inverted V-shaped support. An electric telescopic rod is installed inside the protective arm. The electric telescopic rod is connected to the firing mechanism through a height extension rod. The gunpowder cartridge is mounted on the firing mechanism and contains gunpowder. The steel nail is connected to the gunpowder cartridge and has measurement markers on it.

[0006] Further: The firing mechanism includes a short threaded rod, a bottom spring, a connecting screw, a firing pin, a front spring, and a protective sleeve. The short threaded rod is connected to the height extension rod, the connecting screw is screwed to the short threaded rod, the bottom spring is fitted around the outer periphery of the connecting screw, the firing pin is mounted on the connecting screw via a base, the front spring is fitted on the base, and the base is screwed to the protective sleeve. The gunpowder cartridge is located inside the protective sleeve.

[0007] Furthermore: the movable trolley is provided with a base plate, the bottom end of the guard arm is hinged to the base plate through a first pivot, and the output end of the electric telescopic cylinder is hinged to the guard arm through a second pivot.

[0008] Furthermore: the bottom of the movable trolley is provided with casters, the top of the movable trolley is provided with two parallel uprights, a handrail is provided between the two uprights, and each upright is connected to the movable trolley with a rib.

[0009] Furthermore: a remote control is provided on the base plate, and the remote control is provided with a first control button and a second control button. The first control button is electrically connected to the electric telescopic rod and is used to control the start and stop of the electric telescopic rod. The second control button is electrically connected to the electric telescopic cylinder and is used to control the start and stop of the electric telescopic cylinder.

[0010] Furthermore: the measuring mark includes an L-shaped angle iron, which is fitted onto the steel nail, and a measuring reflector is provided on the L-shaped angle iron.

[0011] Furthermore: the height extension rod includes at least one long threaded rod, the at least one long threaded rod is screwed to each other, and the long threaded rod at the top and the short threaded rod are screwed to each other.

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

[0013] 1. The total length is finely adjusted by an electric telescopic rod installed inside the guard arm, which is connected by at least one long threaded rod. The guard arm is adjusted to the required angle by an electric telescopic cylinder. The long threaded rod drives the short threaded rod to drive the connecting screw to push the firing pin to ignite the gunpowder at the bottom of the gunpowder cartridge. The gunpowder drives the steel nail to hit the measuring mark to the tunnel wall, thus realizing the deployment of measuring marks in tunnels with different heights above the ground.

[0014] 2. The electric telescopic cylinder can be adjusted to allow for the placement of measurement markers in different directions within the tunnel, such as vertical or inclined, thus improving the ease of placement.

[0015] 3. By installing wheels at the bottom of the movable trolley and handrails at the top, it is easy to move and adapts to the complex construction site of the tunnel. It eliminates the need for personnel to climb up and down the platform or machinery, ensuring personnel safety and improving the efficiency of setting up measurement markers. Attached Figure Description

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

[0017] Figure 2 This is an exploded view of the firing mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the long threaded rod of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1-Moveable trolley, 2-Arm guard, 3-Electric telescopic cylinder, 4-Firing mechanism, 5-Powder cartridge, 6-Steel nail, 7-Height extension rod, 8-Short threaded rod, 9-Bottom spring, 10-Connecting screw, 11-Firing pin, 12-Front spring, 13-Cylinder guard, 14-Base, 15-Base plate, 16-First pivot, 17-Second pivot, 18-Moving wheel, 19-Upright pole, 20-Handrail, 21-Rib plate, 22-Remote control, 23-First control button, 24-Second control button, 25-L-shaped angle iron, 26-Measuring reflector, 27-Long threaded rod. Detailed Implementation

[0020] Figures 1 to 3 This is a schematic diagram of an embodiment of a portable deployment device for tunnel measurement markers provided by this utility model. It includes a movable trolley 1, a protective arm 2, an electric telescopic cylinder 3, a firing mechanism 4, a gunpowder cartridge 5, and a steel nail 6. The protective arm 2 is rotatably mounted on the movable trolley 1. The telescopic end of the electric telescopic cylinder 3 is hinged to the protective arm 2, and the bottom end of the electric telescopic cylinder 3 is connected to the movable trolley 1. The protective arm 2 and the electric telescopic cylinder 3 form an inverted V-shaped support. An electric telescopic rod is installed inside the protective arm 2, and the electric telescopic rod is connected to the firing mechanism 4 via a height extension rod 7. The gunpowder cartridge 5 is mounted on the firing mechanism 4 and contains gunpowder. The steel nail 6 is connected to the gunpowder cartridge 5 and has measurement markers on it.

[0021] The firing mechanism 4 includes a short threaded rod 8, a bottom spring 9, a connecting screw 10, a firing pin 11, a front spring 12, and a protective sleeve 13. The short threaded rod 8 is connected to the height extension rod 7, and the connecting screw 10 is screwed to the short threaded rod 8. The bottom spring 9 is fitted on the outer periphery of the connecting screw 10. The firing pin 11 is mounted on the connecting screw 10 through a base 14. The front spring 12 is fitted on the base 14, and the base 14 is screwed to the protective sleeve 13. The gunpowder cartridge 5 is located inside the protective sleeve 13.

[0022] The movable trolley 1 is equipped with a base plate 15. The bottom end of the guard arm 2 is hinged to the base plate 15 through the first pivot 16. The output end of the electric telescopic cylinder 3 is hinged to the guard arm 2 through the second pivot 17.

[0023] The bottom of the movable trolley 1 is equipped with casters 18, and the top of the movable trolley 1 is equipped with two parallel uprights 19. A handrail 20 is provided between the two uprights 19, and a rib plate 21 is connected between each upright 19 and the movable trolley 1.

[0024] A remote control 22 is provided on the base plate 15. The remote control 22 is provided with a first control button 23 and a second control button 24. The first control button 23 is electrically connected to the electric telescopic pole and is used to control the start and stop of the electric telescopic pole. The second control button 24 is electrically connected to the electric telescopic cylinder 3 and is used to control the start and stop of the electric telescopic cylinder 3.

[0025] The measuring markers include an L-shaped angle iron 25, which is fitted onto a steel nail 6, and a measuring reflector 26 is provided on the L-shaped angle iron 25.

[0026] The height extension rod 7 includes at least one long threaded rod 27, which are screwed together with each other, and the long threaded rod 27 at the top and the short threaded rod 8 are screwed together with each other.

[0027] When using this utility model, the clear height of the tunnel to be laid out is first measured by a rangefinder, the required number of long threaded rods 27 is calculated, and then the long threaded rods 27, firing mechanism 4, protective sleeve 13, etc. are connected and placed horizontally, and steel nails 6 are installed. The steel nails 6 have measuring marks.

[0028] The electric telescopic cylinder 3 is controlled by the second control button 24 to drive the guard arm 2 to adjust to the required angle. The electric telescopic rod is fine-tuned by the first control button 23 to reach the predetermined position by adjusting the long threaded rod 27. The long threaded rod 27 drives the short threaded rod 8 to push the firing pin 11 connected to the connecting screw 10 to fire the gunpowder at the bottom of the gunpowder cartridge 5. The gunpowder drives the steel nail 6 to drive the measuring mark into the tunnel wall.

[0029] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A portable deployment device for tunnel survey markers, characterized in that: The device includes a movable trolley, a protective arm, an electric telescopic cylinder, a firing mechanism, a gunpowder cartridge, and a steel nail. The protective arm is rotatably mounted on the movable trolley. The telescopic end of the electric telescopic cylinder is hinged to the protective arm, and the bottom end of the electric telescopic cylinder is connected to the movable trolley. The protective arm and the electric telescopic cylinder form an inverted V-shaped support. An electric telescopic rod is installed inside the protective arm, and the electric telescopic rod is connected to the firing mechanism via a height extension rod. The gunpowder cartridge is mounted on the firing mechanism and contains gunpowder. The steel nail is connected to the gunpowder cartridge and has measuring marks.

2. The portable deployment device for tunnel survey markers according to claim 1, characterized in that: The firing mechanism includes a short threaded rod, a bottom spring, a connecting screw, a firing pin, a front spring, and a protective sleeve. The short threaded rod is connected to the height extension rod, and the connecting screw is screwed to the short threaded rod. The bottom spring is fitted around the outer periphery of the connecting screw. The firing pin is mounted on the connecting screw via a base. The front spring is fitted on the base, and the base is screwed to the protective sleeve. The gunpowder cartridge is located inside the protective sleeve.

3. The portable deployment device for tunnel survey markers according to claim 1, characterized in that: The movable trolley is equipped with a base plate, and the bottom end of the guard arm is hinged to the base plate via a first pivot. The output end of the electric telescopic cylinder is hinged to the guard arm via a second pivot.

4. The portable deployment device for tunnel survey markers according to claim 1, characterized in that: The movable trolley is equipped with wheels at the bottom and two parallel uprights at the top. A handrail is provided between the two uprights, and a rib is connected between each upright and the movable trolley.

5. The portable deployment device for tunnel survey markers according to claim 3, characterized in that: A remote control is provided on the base plate. The remote control is provided with a first control button and a second control button. The first control button is electrically connected to the electric telescopic pole and is used to control the start and stop of the electric telescopic pole. The second control button is electrically connected to the electric telescopic cylinder and is used to control the start and stop of the electric telescopic cylinder.

6. The portable deployment device for tunnel survey markers according to claim 1, characterized in that: The measuring mark includes an L-shaped angle iron, which is fitted onto the steel nail, and a measuring reflector is provided on the L-shaped angle iron.

7. The portable deployment device for tunnel survey markers according to claim 2, characterized in that: The height extension rod includes at least one long threaded rod, and the at least one long threaded rod is screwed to each other. The long threaded rod at the top and the short threaded rod are screwed to each other.

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