Simple roadway depicting instrument

Abstract

The utility model relates to the technical field of engraving instruments, in particular to a simple roadway engraving instrument. In order to solve the problems that in conventional tunneling operation, a box ruler is used for determining a height point to describe a roadway contour line, the precision is poor, the over-excavation and under-excavation phenomena occur frequently, and the construction quality and efficiency are seriously affected, the following technical scheme is provided: the device comprises a first sleeve, a second sleeve is slidably connected in the first sleeve, and a telescopic rod is slidably connected in the second sleeve; the positioning rod is fixedly connected to one side of the first sleeve; the nicking tool is mounted at one end, far away from the first sleeve, of the telescopic rod; and the positioning mechanism is arranged on the side surfaces of the first sleeve and the second sleeve and is used for locking the positions of the second sleeve and the telescopic rod. The problems that a traditional box ruler is poor in carving forming and frequent in over-excavation and under-excavation phenomena are solved, the roadway construction quality and efficiency can be improved, and the overall operation benefits of a mine are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving instruments, in particular to a simple roadway engraving instrument. Background Art

[0002] In the operation of mine exploitation, the tunneling process is a core link at the front end of the production process. The quality of its construction directly affects the overall operation efficiency and economic benefits of the mine. For the construction of underground mine roadways, ramps, etc., it is often necessary to deal with complex and changeable rock mass geological conditions. In this case, ensuring that the roadway construction meets the standardized requirements plays a crucial fundamental role in the subsequent production and operation of the mine.

[0003] In the past conventional tunneling operation process, most of the roadway contour lines were engraved by using a tape measure to determine the height points, and then the contour lines were formed. However, the contour lines formed by this engraving method have poor accuracy, resulting in frequent over-excavation and under-excavation phenomena during the construction process, seriously affecting the quality and efficiency of roadway construction. In view of this, the utility model proposes a simple roadway engraving instrument. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the background art that in the conventional tunneling operation, a tape measure is used to determine the height points to engrave the roadway contour line, with poor accuracy, frequent over-excavation and under-excavation phenomena, and seriously affecting the construction quality and efficiency, and to propose a simple roadway engraving instrument.

[0005] The technical solution of the utility model: A simple roadway engraving instrument includes a first sleeve, a second sleeve is slidably connected in the first sleeve, and a telescopic rod is slidably connected in the second sleeve; a positioning rod fixedly connected to one side of the first sleeve; a cutter installed at the end of the telescopic rod far from the first sleeve; a positioning mechanism arranged on the sides of the first sleeve and the second sleeve, and the positioning mechanism is used to lock the positions of the second sleeve and the telescopic rod.

[0006] Optionally, a first limiting ring is fixedly connected to the inner side of the first sleeve near the cutter end, a second limiting ring is fixedly connected to the inner side of the second sleeve near the cutter end, a third limiting ring is sleeved and installed at the end of the second sleeve far from the cutter, and a fourth limiting ring is sleeved and installed at the end of the telescopic rod far from the cutter.

[0007] Optionally, a mounting seat is slidably connected to the outside of the cutter, the mounting seat is arranged in a "U" shape, the mounting seat is fixedly connected to one end of the telescopic rod, and a fastening piece is penetrated in the mounting seat.

[0008] Optionally, the positioning mechanism includes a movable block disposed on one side of the first sleeve, and a first positioning frame is fixedly connected to the movable block near the side of the first sleeve. The first positioning frame is U-shaped and slidably connected in the first sleeve, and the second sleeve is slidably connected in the first positioning frame.

[0009] Optionally, a connecting block is slidably connected to the movable block. The connecting block is shaped like a "U". A second positioning frame is fixedly connected to the side of the connecting block near the second sleeve. The second positioning frame is U-shaped and slidably connected to the second sleeve. The telescopic rod is slidably connected to the second positioning frame.

[0010] Optionally, the movable block is threaded with screws.

[0011] Optionally, a first arc-shaped plate is fixedly connected to the first positioning frame, the first arc-shaped plate is in contact with the outer wall of the first sleeve, and a first rubber pad is provided at the inner bend of the first positioning frame.

[0012] Optionally, a second arc-shaped plate is fixedly connected to the second positioning frame, the second arc-shaped plate is in contact with the outer wall of the second sleeve, and a second rubber pad is provided at the inner bend of the second positioning frame.

[0013] Optionally, scale lines are provided on the outer side of both the second sleeve and the telescopic rod.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This utility model adjusts the length through the sliding cooperation of the first sleeve, the second sleeve and the telescopic rod. The distance between the carving knife and the positioning rod can be precisely controlled by the scale lines on the outer side of the two sleeves. The carving knife is fixed by the mounting base and fasteners to avoid deflection. This solves the problem of poor engraving shape of traditional measuring tapes, ensures the quality of tunnel construction, effectively improves the accuracy of tunnel outline engraving, and reduces over-excavation and under-excavation.

[0016] Furthermore, the length locking operation is simplified by using components such as the moving block, the first positioning frame, and the second positioning frame of the positioning mechanism. The positioning mechanism can stably lock the position of each component to determine the radius of the arc. It is easy to operate and highly applicable, which helps to improve construction efficiency.

[0017] In summary, this utility model solves the problems of poor marking and frequent over- and under-excavation of traditional measuring tapes, which can improve the quality and efficiency of tunnel construction and ensure the overall operational benefits of the mine. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a simple tunnel marking instrument;

[0019] Figure 2 yes Figure 1A schematic diagram of the cross-sectional structure;

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the positioning mechanism.

[0022] Figure label:

[0023] 1. First sleeve; 11. First limiting ring;

[0024] 2. Second sleeve; 21. Second limiting ring; 22. Third limiting ring;

[0025] 3. Telescopic rod; 31. Fourth limit ring;

[0026] 4. Positioning rod; 5. Engraving knife; 51. Mounting base; 52. Fastener;

[0027] 6. Positioning mechanism; 61. Moving block; 62. First positioning frame; 63. Connecting block; 64. Second positioning frame; 65. Screw; 66. First arc plate; 67. First rubber pad; 68. Second arc plate; 69. Second rubber pad. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0029] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0030] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example

[0034] like Figures 1 to 3 As shown, this utility model proposes a simple tunnel marking instrument, including a first sleeve 1, a second sleeve 2 slidably connected to the first sleeve 1, and a telescopic rod 3 slidably connected to the second sleeve 2. The overall length is increased by sliding, adapting to tunnel marking at various distances. A first limiting ring 11 is fixedly connected to the inner side of the first sleeve 1 near the cutting tool 5, and a second limiting ring 21 is fixedly connected to the inner side of the second sleeve 2 near the cutting tool 5. The first limiting ring 11, in conjunction with the second limiting ring 21, prevents the second sleeve 2 from detaching from the first sleeve 1 during length adjustment. A third limiting ring 22 is fitted onto the end of the second sleeve 2 away from the cutting tool 5, and a fourth limiting ring 31 is fitted onto the end of the telescopic rod 3 away from the cutting tool 5. The third limiting ring 22, in conjunction with the fourth limiting ring 31, prevents the telescopic rod 3 from detaching from the second sleeve 2 during length adjustment. Both the second sleeve 2 and the telescopic rod 3 have scale lines on their outer sides. The distance between the carving knife 5 and the positioning rod 4 can be known by the sum of the scales displayed on the second sleeve 2 and the telescopic rod 3, thereby enabling precise control of the carving length.

[0035] Furthermore, the above-mentioned engraving instrument includes a positioning rod 4 fixedly connected to one side of the first sleeve 1. By setting the positioning rod 4, the center position is determined when drawing the three-center arch pattern.

[0036] Furthermore, the aforementioned engraving instrument also includes an engraving knife 5 installed at the end of the telescopic rod 3 away from the first sleeve 1. When drawing a three-center arch pattern, the engraving knife 5 engraves an arc line with the positioning rod 4 as the center. A mounting base 51 is slidably connected to the outside of the engraving knife 5. The mounting base 51 is U-shaped and is fixedly connected to one end of the telescopic rod 3. A fastener 52 passes through the mounting base 51. When the fastener 52 is tightened, the engraving knife 5 is fixed by the mounting base 51, preventing deflection.

[0037] For details, please refer to Figures 1 to 4 The aforementioned marking instrument also includes a positioning mechanism 6 disposed on the sides of the first sleeve 1 and the second sleeve 2. The positioning mechanism 6 is used to lock the positions of the second sleeve 2 and the telescopic rod 3, thereby determining the radius of the marked arc. The positioning mechanism 6 includes a moving block 61 disposed on one side of the first sleeve 1. A first positioning frame 62 is fixedly connected to the side of the moving block 61 near the first sleeve 1. When the moving block 61 moves, it drives the first positioning frame 62 to move synchronously. The first positioning frame 62 is U-shaped and slidably connected to the first sleeve 1. The second sleeve 2 is slidably connected to the first positioning frame 62. After the first positioning frame 62 moves, it comes into close contact with the second sleeve 2, fixing the position of the second sleeve 2 by friction. A first arc-shaped plate 66 is fixedly connected to the first positioning frame 62. The first arc-shaped plate 66 fits against the outer wall of the first sleeve 1, preventing external impurities from entering the first sleeve 1. A first rubber pad 67 is disposed at the inner bend of the first positioning frame 62, increasing friction and ensuring the stability of the position of the second sleeve 2. A connecting block 63 is slidably connected to the movable block 61. The connecting block 63 is U-shaped and moves synchronously when the movable block 61 moves. A second positioning frame 64 is fixedly connected to the connecting block 63 near the second sleeve 2. The second positioning frame 64 moves synchronously with the connecting block 63. The second positioning frame 64 is U-shaped and slidably connected to the second sleeve 2. The telescopic rod 3 is slidably connected to the second positioning frame 64. After the second positioning frame 64 moves, it comes into close contact with the telescopic rod 3, fixing the position of the telescopic rod 3 through friction. A screw 65 is threadedly connected to the movable block 61. When the screw 65 rotates, it moves along its own length. After one end of the screw 65 contacts the second sleeve 2, it uses a reaction force to move the movable block 61 away from the first sleeve 1. A second arc-shaped plate 68 is fixedly connected to the second positioning frame 64. The second arc-shaped plate 68 fits against the outer wall of the second sleeve 2, preventing external debris from entering the second sleeve 2. A second rubber pad 69 is provided at the inner bend of the second positioning frame 64. The second rubber pad 69 increases the friction and ensures the stability of the telescopic rod 3.

[0038] In this embodiment, before carving the tunnel outline, the relative positions of the first sleeve 1, the second sleeve 2, and the telescopic rod 3 are adjusted according to the required tunnel dimensions. The distance between the carving knife 5 and the positioning rod 4 is adjusted by sliding the extension / retraction of the second sleeve 2 within the first sleeve 1 and the extension / retraction of the telescopic rod 3 within the second sleeve 2. At this time, the scale lines on the outer sides of the second sleeve 2 and the telescopic rod 3 can visually display their extension / retraction lengths, and the sum of these two lengths is the actual distance between the carving knife 5 and the positioning rod 4, thus achieving precise control of the carving length. During the adjustment process, the first limiting ring 11 and the second limiting ring 21 cooperate to effectively prevent the second sleeve 2 from detaching from the first sleeve 1; the third limiting ring 22 and the fourth limiting ring 31 prevent the telescopic rod 3 from falling out of the second sleeve 2, ensuring the stability of the adjustment process.

[0039] Then, screw 65 is tightened. One end of screw 65 contacts the second sleeve 2, generating a reaction force that pushes the moving block 61 away from the first sleeve 1. The moving block 61 causes the first positioning frame 62 to slide within the first sleeve 1 until the first positioning frame 62 is in close contact with the second sleeve 2. The first rubber pad 67 increases the friction between the two, ensuring the second sleeve 2 is fixed in position. Simultaneously, the moving block 61 drives the connecting block 63 and the second positioning frame 64 to move synchronously, causing the second positioning frame 64 to be in close contact with the telescopic rod 3. The second rubber pad 69 further enhances the friction, fixing the position of the telescopic rod 3. At this point, the radius of the drawn arc is determined. When carving the three-centered arch shape, the positioning rod 4 plays a crucial role in determining the center. Using the positioning rod 4 as the center, the arc can be directly carved using the carving knife 5.

[0040] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A simple tunnel mapping instrument, characterized in that, Comprising: A first sleeve (1), in which a second sleeve (2) is slidably connected, and in which a telescopic rod (3) is slidably connected; A positioning rod (4) fixedly connected to one side of the first sleeve (1); A cutter (5) installed at one end of the telescopic rod (3) away from the first sleeve (1); A positioning mechanism (6) provided on the sides of the first sleeve (1) and the second sleeve (2), and the positioning mechanism (6) is used to lock the positions of the second sleeve (2) and the telescopic rod (3).

2. The simple tunnel marking instrument according to claim 1, characterized in that, On the inner side of one end of the first sleeve (1) close to the cutter (5), a first limiting ring (11) is fixedly connected. On the inner side of one end of the second sleeve (2) close to the cutter (5), a second limiting ring (21) is fixedly connected. At one end of the second sleeve (2) away from the cutter (5), a third limiting ring (22) is sleeved and installed. At one end of the telescopic rod (3) away from the cutter (5), a fourth limiting ring (31) is sleeved and installed.

3. The simple tunnel marking instrument according to claim 2, characterized in that, A mounting seat (51) is slidably connected to the outside of the cutter (5). The mounting seat (51) is arranged in a "U" shape. The mounting seat (51) is fixedly connected to one end of the telescopic rod (3), and a fastener (52) is penetrated in the mounting seat (51).

4. The simple tunnel marking instrument according to claim 3, characterized in that, The positioning mechanism (6) includes a moving block (61) provided on one side of the first sleeve (1). On the side of the moving block (61) close to the first sleeve (1), a first positioning frame (62) is fixedly connected. The first positioning frame (62) is arranged in a U shape and is slidably connected in the first sleeve (1), and the second sleeve (2) is slidably connected in the first positioning frame (62).

5. A simple tunnel marking instrument according to claim 4, characterized in that, A connecting block (63) is slidably connected in the moving block (61). The connecting block (63) is arranged in a "square" shape. On the side of the connecting block (63) close to the second sleeve (2), a second positioning frame (64) is fixedly connected. The second positioning frame (64) is arranged in a U shape and is slidably connected in the second sleeve (2), and the telescopic rod (3) is slidably connected in the second positioning frame (64).

6. A simple tunnel marking instrument according to claim 5, characterized in that, A screw (65) is threadedly connected in the moving block (61).

7. A simple tunnel marking instrument according to claim 6, characterized in that, A first arc-shaped plate (66) is fixedly connected to the first positioning frame (62). The first arc-shaped plate (66) is fitted to the outer wall of the first sleeve (1), and a first rubber pad (67) is arranged at the inner bending part of the first positioning frame (62).

8. A simple tunnel marking instrument according to claim 7, characterized in that, A second arc-shaped plate (68) is fixedly connected to the second positioning frame (64). The second arc-shaped plate (68) is fitted to the outer wall of the second sleeve (2), and a second rubber pad (69) is arranged at the inner bending part of the second positioning frame (64).

9. A simple tunnel marking instrument according to claim 1, characterized in that, Scale lines are provided on the outer sides of the second sleeve (2) and the telescopic rod (3).

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