Safety protection device for tunnel drilling and blasting trolley

Abstract

The utility model discloses a tunnel drilling and blasting trolley safety protection device, and relates to the technical field of tunnel excavation, the tunnel drilling and blasting trolley safety protection device comprises a [-shaped frame, the two corners of the upper surface of the [-shaped frame are rotatably connected with hollow rods in the opening direction, and the two hollow rods are slidably connected with movable rods; and the upper ends of the two movable rods are fixedly connected with the same protective bottom plate through connecting blocks. The [-shaped frame is fixedly installed at the working front end of the trolley or installed on the ground, then the protective bottom plate is turned upwards and fixed after being rotated to a proper angle, then the movable rod is lifted upwards to move in the hollow rod, after being moved to a proper height, the movable rod is inserted and fixed through the inserting assembly, and meanwhile the protective bottom plate is moved to a high position along with the movable rod. And the movable protection plate moves downwards on the surface of the protection bottom plate under the action of gravity to make contact with the ground, the protection range can be adjusted according to trolleys of different sizes, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel excavation, in particular to a safety protection device for a tunnel drilling and blasting jumbo Background Technique

[0002] During the construction of the tunnel engineering by the drill and blast method, a protection board needs to be set at the heading face. When drilling, the construction workers stand on the jumbo for operation. However, during blasting, in order to prevent the damage of the blasting flying stones and the like to the drilling and blasting jumbo, the jumbo needs to be moved away from the heading face. However, even so, the jumbo is still often affected by the blasting flying stones.

[0003] The current protection board has a single structure and can only protect a fixed range. And there are various types of rock drilling jumbos required for tunnel excavation. The protection board with a fixed size cannot effectively protect the rock drilling jumbos of different heights. Moreover, the current protection board has a fixed structure and a large volume, which will waste more transportation resources during transfer and transportation, and its practicability is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a safety protection device for a tunnel drilling and blasting jumbo to solve the above problems, as described in detail below.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A safety protection device for a tunnel drilling and blasting jumbo provided by the utility model includes a U-shaped frame. At both corners of the upper surface of the U-shaped frame, hollow rods are rotatably connected along the opening direction. In both of the two hollow rods, movable rods are slidably connected. The upper ends of the two movable rods are fixedly connected with the same protection bottom plate through connection blocks. An movable protection board is slidably connected to the surface of the protection bottom plate. On both sides of the upper surface of the U-shaped frame, there are provided support and fixing parts for fixing the rotation angle of the hollow rods. Above the side wall of the hollow rod, there is provided a plugging component for fixing the height position of the movable rod.

[0007] Adopting the above safety protection device for a tunnel drilling and blasting jumbo, fixedly install the U-shaped frame at the working front end of the jumbo or on the ground, then turn up the protection bottom plate upwards, drive the two hollow rods to rotate upwards. After rotating to a suitable angle, fix it through the support and fixing parts. Then lift the movable rod to make it move in the hollow rod. After moving to a suitable height, plug and fix it through the plugging component. At the same time, the protection bottom plate also moves to a high position with it. And the movable protection board moves down on the surface of the protection bottom plate under the action of gravity to contact the ground, completing the support and protection.

[0008] Preferably, the plugging component includes a pin hole opened above the side wall of the hollow rod, a pin is plugged in the pin hole, and a plurality of positioning holes for plugging the pin are opened on the movable rod.

[0009] Preferably, a magnetic plate is fixedly connected to the end of the bolt pin, and the magnetic plate is magnetically connected to the iron hollow rod.

[0010] Preferably, two T-shaped circular plates are fixedly connected to one side of the surface of the protective bottom plate, and sliding grooves for sliding connection with the T-shaped circular plates are formed on both sides of the movable protective plate.

[0011] Preferably, the supporting and fixing member includes a rectangular groove formed on the upper surface of the C-shaped frame. One end of the rectangular groove close to the opening direction of the C-shaped frame is rotatably connected with a rotating block. A threaded rod is fixedly connected to the rotating block. An adjusting plate is sleeved on the threaded rod, and the adjusting plate is threadedly connected to the threaded rod through a threaded hole formed thereon. A bolt connecting member is provided on the hollow rod for fixing the end position of the adjusting plate.

[0012] Preferably, the bolt connecting member includes a bolt hole formed at the end of the adjusting plate. A long bolt is threadedly connected in the bolt hole. A plurality of L-shaped ear plates are fixedly connected to the side wall of the hollow rod, and insertion holes for inserting the long bolt are formed through the plurality of L-shaped ear plates.

[0013] Preferably, a plurality of fixing holes are formed through the C-shaped frame, and the upper surfaces of the plurality of fixing holes are all countersunk designs.

[0014] Preferably, a movable groove is formed on the side wall of the hollow rod, and the connecting block is slidably connected in the movable groove.

[0015] The beneficial effects are as follows:

[0016] By fixedly installing the C-shaped frame at the working front end of the trolley or on the ground, then turning up the protective bottom plate, fixing it after rotating to a suitable angle, then lifting the movable rod to move it in the hollow rod, inserting and fixing it through the plugging assembly after moving to a suitable height, and at the same time, the protective bottom plate also moves to a high place with it, and the movable protective plate moves down on the surface of the protective bottom plate under the action of gravity to contact the ground, the protection range can be adjusted for trolleys of different sizes, and the protection effect is improved.

[0017] By overlapping the movable protective plate with the protective bottom plate, then inserting the movable rod into the hollow rod and placing the hollow rod horizontally, the anti-slip device can be folded and stored, which is convenient for transfer and transportation. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is the perspective view of the present utility model;

[0020] Figure 2 is the partial perspective view of the C-shaped frame of the present utility model;

[0021] Figure 3 is the disassembled perspective view of the movable protection plate of the present utility model;

[0022] Figure 4 is the perspective view of the folded state of the present utility model.

[0023] The description of the reference numerals is as follows:

[0024] 1. C-shaped frame; 2. Hollow rod; 3. Plug-in component; 3a. Pin hole; 3b. Pin; 3c. Positioning hole; 3d. Magnetic plate; 4. Support and fixing part; 4a. Rectangular groove; 4b. Rotating block; 4c. Threaded rod; 4d. Adjusting plate; 4e. Threaded hole; 5. Bolt connecting part; 5a. Bolt hole; 5b. Long bolt; 5c. L-shaped ear plate; 5d. Jack; 6. Movable rod; 7. Protection bottom plate; 8. Movable protection plate; 9. T-shaped round plate; 10. Chute; 11. Movable groove; 12. Fixed hole. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts fall within the scope protected by the present utility model.

[0026] See Figures 1 - 4 As shown, the present utility model provides a safety protection device for a tunnel drilling and blasting jumbo, including a C-shaped frame 1. At both corners of the upper surface of the C-shaped frame 1, hollow rods 2 are rotatably connected along the opening direction. Movable rods 6 are slidably connected in both hollow rods 2. The upper ends of the two movable rods 6 are fixedly connected to the same protection bottom plate 7 through connection blocks. A movable protection plate 8 is slidably connected to the surface of the protection bottom plate 7. Support and fixing parts 4 for fixing the rotation angle of the hollow rod 2 are provided on both sides of the upper surface of the C-shaped frame 1. A plug-in component 3 for fixing the height position of the movable rod 6 is provided above the side wall of the hollow rod 2.

[0027] As an alternative embodiment, the plug-in component 3 includes a pin hole 3a formed in the upper side wall of the hollow rod 2. A pin 3b is inserted into the pin hole 3a. A number of positioning holes 3c for inserting the pin 3b are formed in the movable rod 6. A magnetic plate 3d is fixedly connected to the end of the pin 3b, and the magnetic plate 3d is magnetically connected to the iron hollow rod 2. After the movable rod 6 is lifted to an appropriate height, the pin 3b is inserted into the pin hole 3a and the positioning hole 3c simultaneously to complete the height fixation of the movable rod 6. At the same time, the magnetic force of the magnetic plate 3d prevents the pin 3b from falling off.

[0028] Referring to Figure 3 As shown in the figure, two T-shaped circular plates 9 are fixedly connected to one side of the surface of the protective bottom plate 7. Sliding grooves 10 for slidingly connecting with the T-shaped circular plates 9 are formed on both sides of the movable protective plate 8, enabling the movable protective plate 8 to freely move on the surface of the protective bottom plate 7. Thus, after the protective bottom plate 7 is raised, the movable protective plate 8 moves downward under the action of gravity, causing the T-shaped circular plates 9 to move in the sliding grooves 10, and the protection range can be expanded.

[0029] Referring to Figure 2 As shown in the figure, the supporting and fixing member 4 includes a rectangular groove 4a formed in the upper surface of the C-shaped frame 1. One end of the rectangular groove 4a close to the opening direction of the C-shaped frame 1 is rotatably connected with a rotating block 4b. A threaded rod 4c is fixedly connected to the rotating block 4b. An adjusting plate 4d is sleeved on the threaded rod 4c, and the adjusting plate 4d is threadedly connected with the threaded rod 4c through a threaded hole 4e formed therein. A bolt connecting member 5 for fixing the end position of the adjusting plate 4d is provided on the hollow rod 2. The bolt connecting member 5 includes a bolt hole 5a formed in the end of the adjusting plate 4d. A long bolt 5b is threadedly connected in the bolt hole 5a. A number of L-shaped ear plates 5c are fixedly connected to the side wall of the hollow rod 2. Through holes for inserting the long bolt 5b are formed through a number of L-shaped ear plates 5c. After the hollow rod 2 is turned upward, the adjusting plate 4d is turned upward again, driving the rotating block 4b and the threaded rod 4c to rotate together. When the two sides of the adjusting plate 4d are no longer restricted by the rectangular groove 4a, the adjusting plate 4d rotates and moves on the threaded rod 4c. When the adjusting plate 4d moves to an appropriate length and abuts against the side wall of the hollow rod 2, then the long bolt 5b is inserted into the through hole 5d and the bolt hole 5a and rotated to complete the connection between the upper end of the adjusting plate 4d and the L-shaped ear plate 5c, thereby realizing the angle fixation of the hollow rod 2. The setting of the L-shaped ear plate 5c can prevent the hollow rod 2 from colliding with the C-shaped frame 1 when the hollow rod 2 rotates to the horizontal state, so as to realize the horizontal placement of the hollow rod 2. The rectangular groove 4a can accommodate the adjusting plate 4d, the threaded rod 4c and the rotating block 4b, and further enable the hollow rod 2 to be smoothly placed horizontally.

[0030] Specifically, a number of fixing holes 12 are penetrated through the U-shaped frame 1, and the upper surfaces of the number of fixing holes 12 are all countersunk designs. An activity groove 11 is opened on the side wall of the hollow rod 2, and the connecting block is slidably connected in the activity groove 11. The setting of the fixing holes 12 can install the U-shaped frame 1 at the front end of the trolley or on the ground through fixing bolts. The countersunk design of the fixing holes 12 can keep the surface of the U-shaped frame 1 flat after installing the bolts. The activity groove 11 can enable the protective bottom plate 7 to move forward along the activity groove 11 when the protective bottom plate 7 is horizontally placed at the front end of the trolley, so as to make space for the structural components or working states of the trolley, improving the adaptability.

[0031] With the above structure, the U-shaped frame 1 is fixedly installed at the working front end of the trolley or installed on the ground. Then, the protective bottom plate 7 is turned upwards, driving the two hollow rods 2 to rotate upwards. After rotating to a suitable angle, it is fixed by the support fixing part 4. Subsequently, the movable rod 6 is lifted to move in the hollow rod 2. After moving to a suitable height, it is inserted and fixed by the insertion component 3. At the same time, the protective bottom plate 7 also moves to a high place with it. The movable protective plate 8 moves down on the surface of the protective bottom plate 7 under the action of gravity and contacts the ground to complete the support and protection.

[0032] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A safety protection device for a tunnel drilling and blasting trolley, characterized in that: It includes a U-shaped frame (1). At both corners of the upper surface of the U-shaped frame (1), hollow rods (2) are rotatably connected along the opening direction. An active rod (6) is slidably connected in each of the two hollow rods (2). The upper ends of the two active rods (6) are fixedly connected to the same protective bottom plate (7) through connection blocks. An active protective plate (8) is slidably connected to the surface of the protective bottom plate (7). On both sides of the upper surface of the U-shaped frame (1), there are support and fixing parts (4) for fixing the rotation angle of the hollow rod (2). Above the side wall of the hollow rod (2), there is a plug-in component (3) for fixing the height position of the active rod (6).

2. The safety protection device for a tunnel drilling and blasting jumbo according to claim 1, wherein: The plug-in component (3) includes a pin hole (3a) opened above the side wall of the hollow rod (2). A pin (3b) is inserted into the pin hole (3a). A number of positioning holes (3c) for inserting the pin (3b) are opened on the active rod (6).

3. The safety protection device for a tunnel drilling and blasting jumbo according to claim 2, characterized in that: A magnetic plate (3d) is fixedly connected to the end of the pin (3b), and the magnetic plate (3d) is magnetically connected to the iron hollow rod (2).

4. A safety protection device for a tunnel drilling and blasting jumbo according to claim 1, characterized in that: On one side of the surface of the protective bottom plate (7), two T-shaped round plates (9) are fixedly connected. Sliding grooves (10) for slidably connecting with the T-shaped round plates (9) are opened on both sides of the active protective plate (8).

5. The safety protection device for a tunnel drilling and blasting jumbo according to claim 1, characterized in that: The support and fixing part (4) includes a rectangular groove (4a) opened on the upper surface of the U-shaped frame (1). At one end of the rectangular groove (4a) close to the opening direction of the U-shaped frame (1), a rotating block (4b) is rotatably connected. A threaded rod (4c) is fixedly connected to the rotating block (4b). An adjusting plate (4d) is sleeved on the threaded rod (4c). The adjusting plate (4d) is threadedly connected to the threaded rod (4c) through a threaded hole (4e) opened thereon. On the hollow rod (2), there is a bolt connecting part (5) for fixing the end position of the adjusting plate (4d).

6. The safety protection device for a tunnel drilling and blasting jumbo according to claim 5, wherein: The bolt connecting part (5) includes a bolt hole (5a) opened at the end of the adjusting plate (4d). A long bolt (5b) is threadedly connected in the bolt hole (5a). A number of L-shaped ear plates (5c) are fixedly connected to the side wall of the hollow rod (2). Through holes (5d) for inserting the long bolt (5b) are penetratedly opened on a number of the L-shaped ear plates (5c).

7. The safety protection device for a tunnel drilling and blasting jumbo according to claim 1, characterized in that: A number of fixing holes (12) are penetratedly opened on the U-shaped frame (1), and the upper surfaces of the number of fixing holes (12) are counterbored designs.

8. The safety protection device for a tunnel drilling and blasting jumbo according to claim 1, wherein: An activity groove (11) is opened on the side wall of the hollow rod (2), and the connection block is slidably connected in the activity groove (11).

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