Fixed-point bracket device for gas tunnel construction

Abstract

The utility model relates to the technical field of tunnel supporting instruments, and discloses a gas tunnel construction fixed-point bracket device which comprises a first threaded rod, and the top end of the first threaded rod is fixedly connected with a bracket rod. By arranging the middle plate, the movable plate, the internal thread sleeving block, the hinge block and the connecting rod, when the internal thread sleeving block begins to rotate, the internal thread sleeving block, the hinge block and the sleeving ring move upwards along the outer surface of the first threaded rod together, and at the moment, the connecting rod begins to rotate under the driving of the hinge block; meanwhile, the other ends of the connecting rods drive movable plates, so that the two movable plates start to rotate with the left end and the right end of the middle plate as the axis, finally, the upper surfaces of the movable plates are flush with the upper surface of the middle plate, and the bearing area of the whole top of a first threaded rod is enlarged at the moment; therefore, the function of adjusting the overall bearing area of the first threaded rod is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel support equipment technology, and more specifically, to a fixed-point bracket device for gas tunnel construction. Background Technology

[0002] Tunnel construction is the engineering of excavating passages underground or in mountains. Currently, the main tunnel construction methods include drill and blast method, shield tunneling method and tunnel boring machine method. The specific choice depends on geological conditions, tunnel length and purpose. Modern tunnel engineering not only solves terrain limitations, but also promotes regional connectivity and economic development. It is of great significance for improving transportation conditions and resource utilization, and is an important part of modern infrastructure construction.

[0003] When constructing gas tunnels, operators often use fixed-point support devices to provide support for the tunnel roof. However, while existing fixed-point support devices have basic support functions, their top support area is generally fixed and they do not have the function of changing the top support area according to actual needs. Therefore, they need to be improved. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a fixed-point bracket device for gas tunnel construction, which has the advantage of being able to change the support area.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixed-point support device for gas tunnel construction, comprising a first threaded rod, a support rod fixedly connected to the top end of the first threaded rod, a middle plate fixedly connected to the top end of the support rod, and movable plates hinged to both ends of the middle plate, the number of movable plates being two, the two movable plates being the same size, an internal threaded sleeve block threadedly fitted to the top of the outer surface of the first threaded rod, a hinge block movably fitted to the upper side of the outer surface of the internal threaded sleeve block, a sleeve ring fixedly fitted to the middle of the inner surface of the hinge block, the inner surface of the sleeve ring movably fitted to the outer surface of the internal threaded sleeve block, and connecting rods hinged to both ends of the hinge block, the number of connecting rods being two, the other ends of the two connecting rods being hinged to the lower surfaces of the two movable plates respectively.

[0006] As a preferred embodiment of this utility model, an upper limit plate is fixedly sleeved on the bottom end of the outer surface of the bracket rod, and a lower limit plate is fixedly connected to the bottom end of the first threaded rod.

[0007] As a preferred embodiment of this utility model, side blocks are fixedly connected to the outer surfaces of both the front and rear sides of the hinge block, a vertical rod is fixedly connected to the upper surface of the side block, a hollow rod is movably sleeved on the outer surface of the vertical rod, and the top end of the hollow rod is fixedly connected to the lower surface of the middle plate.

[0008] As a preferred embodiment of this utility model, a toothed plate is fixedly connected to the lower surface of the lower limiting plate, a U-shaped plate is movably connected to the outer surface of the toothed plate, a base plate is fixedly connected to the bottom end of the U-shaped plate, and limiting blocks are fixedly connected to the lower sides of the front and rear outer surfaces of the toothed plate. The outer surface of the limiting block and the inner surface of the U-shaped plate are movably connected.

[0009] As a preferred technical solution of this utility model, a fixing plate is fixedly connected to the top of the right surface of the U-shaped plate, a rotating shaft is movably sleeved on the front surface of the fixing plate, the rear end of the rotating shaft passes through the fixing plate and extends to the rear side of the fixing plate, and a gear located inside the fixing plate is fixedly sleeved on the outer surface of the rotating shaft, and the outer surface of the gear and the outer surface of the gear plate mesh with each other.

[0010] As a preferred embodiment of this utility model, a tooth-locking block is meshed with the right side of the outer surface of the gear, and a sleeve plate is fixedly connected to the right side of both the upper and lower outer surfaces of the tooth-locking block. A fixing rod is movably sleeved on the inner surface of the sleeve plate, and a straight plate is fixedly connected to the right end of the fixing rod. The bottom end of the straight plate is fixedly connected to the upper surface of the base plate.

[0011] As a preferred technical solution of this utility model, a limiting sleeve is fixedly connected to the right surface of the toothed block, and a second threaded rod is movably sleeved on the inner surface of the limiting sleeve. The right end of the second threaded rod passes through the limiting sleeve and the straight plate in sequence and extends to the right side of the straight plate. The outer surface of the second threaded rod and the inner surface of the straight plate are threaded together.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up an intermediate plate, a movable plate, an internal threaded sleeve block, a hinge block, and a connecting rod, allows the internal threaded sleeve block, hinge block, and sleeve ring to move upward along the outer surface of the first threaded rod when the internal threaded sleeve block starts to rotate. At this time, the connecting rod will start to rotate under the drive of the hinge block, and at the same time, the other end of the connecting rod will drive the movable plate, thereby causing the two movable plates to start to rotate about the left and right ends of the intermediate plate respectively. Finally, the upper surface of the movable plate and the upper surface of the intermediate plate are flush. At this time, the supporting area of ​​the top of the first threaded rod is expanded, thereby realizing the function of adjusting the overall supporting area of ​​the first threaded rod.

[0014] 2. This utility model, by setting a toothed plate, a U-shaped plate, a limiting block, a rotating shaft, and a gear, allows the gear to rotate along with the rotating shaft when the operator rotates the rotating shaft. Since the gear and the toothed plate mesh with each other, the toothed plate, the lower limiting plate, and the No. 1 threaded rod will move upward under the drive of the gear and the restriction of the inner surface of the U-shaped plate. During this process, the overall height of the No. 1 threaded rod and the bottom plate will gradually change, thereby realizing the adaptability function to tunnels of different heights. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the back of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a cross-sectional view of the side of the present invention;

[0019] Figure 5 for Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0021] In the diagram: 1. Threaded rod No. 1; 2. Intermediate plate; 3. Movable plate; 4. Internal threaded sleeve block; 5. Hinge block; 6. Sleeve ring; 7. Connecting rod; 8. Upper limit plate; 9. Lower limit plate; 10. Side block; 11. Vertical rod; 12. Hollow rod; 13. Bracket rod; 14. Toothed plate; 15. U-shaped plate; 16. Base plate; 17. Limiting block; 18. Fixing plate; 19. Rotating shaft; 20. Gear; 21. Gear block; 22. Sleeve plate; 23. Fixing rod; 24. Straight plate; 25. Limiting sleeve; 26. Threaded rod No. 2. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6As shown, this utility model provides a fixed-point bracket device for gas tunnel construction, including a first threaded rod 1, a bracket rod 13 fixedly connected to the top of the first threaded rod 1, a middle plate 2 fixedly connected to the top of the bracket rod 13, and movable plates 3 hinged to both ends of the middle plate 2. There are two movable plates 3, and the two movable plates 3 are the same size. An internal threaded sleeve block 4 is threadedly sleeved on the top of the outer surface of the first threaded rod 1. A hinge block 5 is movably sleeved on the upper side of the outer surface of the internal threaded sleeve block 4. A sleeve ring 6 is fixedly sleeved in the middle of the inner surface of the hinge block 5. The inner surface of the sleeve ring 6 and the outer surface of the internal threaded sleeve block 4 are movably sleeved. Connecting rods 7 are hinged to both ends of the hinge block 5. There are two connecting rods 7. The other ends of the two connecting rods 7 are respectively hinged to the lower surfaces of the two movable plates 3.

[0024] When the operator rotates the internal threaded sleeve block 4, the internal threaded sleeve block 4, the hinge block 5 and the sleeve ring 6 will start to move upward together. As the hinge block 5 moves as a whole, the connecting rod 7 will start to rotate, and the other end of the connecting rod 7 will drive the movable plate 3, thereby causing the movable plate 3 to start to rotate until the upper surface of the movable plate 3 and the upper surface of the intermediate plate 2 are on the same plane.

[0025] Among them, the bottom end of the outer surface of the bracket rod 13 is fixedly sleeved with an upper limit plate 8, and the bottom end of the threaded rod 1 is fixedly connected with a lower limit plate 9.

[0026] The design of the upper limit plate 8 and the lower limit plate 9 serves to limit the overall movement range of the internal threaded sleeve block 4 and the hinge block 5.

[0027] Among them, the outer surfaces of the front and rear sides of the hinge block 5 are fixedly connected to the side blocks 10, the upper surface of the side blocks 10 is fixedly connected to the vertical rod 11, the outer surface of the vertical rod 11 is movably sleeved with the hollow rod 12, and the top of the hollow rod 12 is fixedly connected to the lower surface of the middle plate 2.

[0028] The design of the vertical rod 11 and the hollow rod 12 ensures that the hinge block 5 as a whole does not rotate with the rotation of the internal threaded sleeve block 4.

[0029] Among them, the lower surface of the lower limit plate 9 is fixedly connected to the toothed plate 14, the outer surface of the toothed plate 14 is movably connected to the U-shaped plate 15, the bottom end of the U-shaped plate 15 is fixedly connected to the bottom plate 16, and the lower sides of the front and rear outer surfaces of the toothed plate 14 are fixedly connected to the limit blocks 17, and the outer surface of the limit blocks 17 and the inner surface of the U-shaped plate 15 are movably connected.

[0030] The design of the U-shaped plate 15 and the limiting block 17 restricts the overall movement direction of the toothed plate 14.

[0031] Among them, a fixed plate 18 is fixedly connected to the top of the right surface of the U-shaped plate 15, a rotating shaft 19 is movably sleeved on the front surface of the fixed plate 18, the rear end of the rotating shaft 19 passes through the fixed plate 18 and extends to the rear side of the fixed plate 18, and a gear 20 located inside the fixed plate 18 is fixedly sleeved on the outer surface of the rotating shaft 19, and the outer surface of the gear 20 and the outer surface of the gear plate 14 are meshed and connected.

[0032] The rotation of gear 20 will drive gear plate 14, thereby causing gear plate 14, lower limit plate 9 and threaded rod 1 to move upward as a whole.

[0033] Among them, a toothed block 21 is meshed with on the right side of the outer surface of the gear 20. A sleeve plate 22 is fixedly connected to the right side of both the upper and lower outer surfaces of the toothed block 21. A fixing rod 23 is movably sleeved on the inner surface of the sleeve plate 22. A straight plate 24 is fixedly connected to the right end of the fixing rod 23. The bottom end of the straight plate 24 is fixedly connected to the upper surface of the base plate 16.

[0034] The design of the locking block 21 serves to lock the rotation of the gear 20, while the design of the fixing rod 23 restricts the direction of movement of the locking block 21.

[0035] Among them, the right surface of the toothed block 21 is fixedly connected to the limiting sleeve 25, and the inner surface of the limiting sleeve 25 is movably sleeved with the second threaded rod 26. The right end of the second threaded rod 26 passes through the limiting sleeve 25 and the straight plate 24 in sequence and extends to the right side of the straight plate 24. The outer surface of the second threaded rod 26 and the inner surface of the straight plate 24 are threaded together.

[0036] The design of the No. 2 threaded rod 26 and the limiting sleeve 25 makes the entire locking block 21 move together with the No. 2 threaded rod 26.

[0037] Working principle and usage process of this utility model:

[0038] First, the operator places the No. 1 threaded rod 1 and the base plate 16 as a whole on the predetermined support position. Then, the operator rotates the No. 2 threaded rod 26. As the No. 2 threaded rod 26 rotates, the locking block 21 will move to the right along with the No. 2 threaded rod 26 until the locking block 21 disengages from the gear 20. At this time, the gear 20 can rotate. Then, the operator rotates the rotating shaft 19 and the gear 20.

[0039] As the rotating shaft 19 and gear 20 rotate, the outer surface of gear 20 will drive the tooth plate 14, thereby causing the tooth plate 14 and the first threaded rod 1 to move upward under the meshing of gear 20. Eventually, the intermediate plate 2 will contact the top of the tunnel. Then, the operator will rotate the second threaded rod 26 to make the locking block 21 re-engage with gear 20. At this time, the overall height of the first threaded rod 1 will be fixed by the locking block 21.

[0040] Then the operator rotates the internal threaded sleeve block 4. As the internal threaded sleeve block 4 rotates, the hinge block 5 and the sleeve ring 6 will move upward along the inner surface of the hollow rod 12 under the drive of the internal threaded sleeve block 4. At this time, the movement of the hinge block 5 will drive the connecting rod 7, thereby causing the connecting rod 7 to start rotating. At the same time, the other end of the connecting rod 7 will drive the movable plate 3. The two movable plates 3 will start to rotate about the left and right ends of the middle plate 2 respectively, until the two movable plates 3 contact the top surface of the tunnel.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed-point support device for gas tunnel construction, comprising a threaded rod (1), characterized in that: The top end of the first threaded rod (1) is fixedly connected to a bracket rod (13), the top end of the bracket rod (13) is fixedly connected to a middle plate (2), and the left and right ends of the middle plate (2) are hinged to movable plates (3). There are two movable plates (3), and the two movable plates (3) are the same size. The top of the outer surface of the first threaded rod (1) is threaded with an internal threaded sleeve block (4), and the upper side of the outer surface of the internal threaded sleeve block (4) is movably sleeved with a hinge block (5). The middle part of the inner surface of the hinge block (5) is fixedly sleeved with a sleeve ring (6). The inner surface of the sleeve ring (6) and the outer surface of the internal threaded sleeve block (4) are movably sleeved. The left and right ends of the hinge block (5) are hinged to connecting rods (7). There are two connecting rods (7), and the other ends of the two connecting rods (7) are respectively hinged to the lower surfaces of the two movable plates (3).

2. The fixed-point bracket device for gas tunnel construction according to claim 1, characterized in that: The bottom end of the outer surface of the bracket rod (13) is fixedly sleeved with an upper limit plate (8), and the bottom end of the first threaded rod (1) is fixedly connected with a lower limit plate (9).

3. The fixed-point bracket device for gas tunnel construction according to claim 1, characterized in that: The hinge block (5) has side blocks (10) fixedly connected to the outer surfaces of both the front and rear sides. The upper surface of the side block (10) is fixedly connected to a vertical rod (11). The outer surface of the vertical rod (11) is movably sleeved with a hollow rod (12). The top end of the hollow rod (12) is fixedly connected to the lower surface of the middle plate (2).

4. A fixed-point bracket device for gas tunnel construction according to claim 2, characterized in that: The lower surface of the lower limiting plate (9) is fixedly connected to a toothed plate (14), the outer surface of the toothed plate (14) is movably connected to a U-shaped plate (15), the bottom end of the U-shaped plate (15) is fixedly connected to a base plate (16), and the lower sides of the front and rear outer surfaces of the toothed plate (14) are fixedly connected to limiting blocks (17), the outer surface of the limiting block (17) and the inner surface of the U-shaped plate (15) are movably connected.

5. A fixed-point bracket device for gas tunnel construction according to claim 4, characterized in that: A fixing plate (18) is fixedly connected to the top of the right surface of the U-shaped plate (15). A rotating shaft (19) is movably sleeved on the front surface of the fixing plate (18). The rear end of the rotating shaft (19) passes through the fixing plate (18) and extends to the rear side of the fixing plate (18). A gear (20) located inside the fixing plate (18) is fixedly sleeved on the outer surface of the rotating shaft (19). The outer surface of the gear (20) meshes with the outer surface of the gear plate (14).

6. A fixed-point bracket device for gas tunnel construction according to claim 5, characterized in that: A toothed block (21) is meshed with the right side of the outer surface of the gear (20). A sleeve plate (22) is fixedly connected to the right side of both the upper and lower outer surfaces of the toothed block (21). A fixing rod (23) is movably sleeved on the inner surface of the sleeve plate (22). A straight plate (24) is fixedly connected to the right end of the fixing rod (23). The bottom end of the straight plate (24) is fixedly connected to the upper surface of the base plate (16).

7. A fixed-point bracket device for gas tunnel construction according to claim 6, characterized in that: The right surface of the toothed block (21) is fixedly connected to a limiting sleeve (25), and the inner surface of the limiting sleeve (25) is movably sleeved with a second threaded rod (26). The right end of the second threaded rod (26) passes through the limiting sleeve (25) and the straight plate (24) in sequence and extends to the right side of the straight plate (24). The outer surface of the second threaded rod (26) and the inner surface of the straight plate (24) are threaded together.

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