Supporting seat for tunnel steel arch

Abstract

The utility model relates to the technical field of supporting seats, and discloses a supporting seat for a tunnel steel arch, which solves the problems that the conventional supporting seat for the tunnel steel arch is usually fixed with two ends of the bottom of the steel arch by adopting a plurality of bolts, and the bolts need to be sequentially screwed by adopting tools when being fastened, and comprises a steel arch main body, two supporting base bodies are arranged below the steel arch frame body, inserting heads are fixedly installed at the two ends of the bottom of the steel arch frame body, inserting grooves are formed in the tops of the supporting base bodies, the two inserting heads are inserted into the two inserting grooves, and two clamping holes are formed in the two sides of each inserting head. Hand wheels are arranged on the sides, close to each other, of the two supporting seat bodies, two clamping heads are arranged on the two sides of the interiors of the two supporting seat bodies correspondingly, and openings are formed in the inner walls of the two sides of the interiors of the supporting seat bodies correspondingly; the supporting seat is very convenient and fast to connect and fasten with the steel arch, so that the labor capacity of operators is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of support technology, specifically a support for tunnel steel arch frames. Background Technology

[0002] Tunnel steel arch support seats are specialized devices used to support tunnel steel arch frames, playing a crucial role in tunnel construction. They are typically made of high-strength metal materials, possessing a stable structure capable of withstanding the loads transmitted by the steel arch frame and surrounding rock. After tunnel excavation, to prevent rock instability and collapse, the steel arch frame needs to be installed promptly. The support seat provides a reliable support foundation for the steel arch frame, ensuring accurate and stable installation. Its applications are wide-ranging, covering various tunnel projects such as highway tunnels, railway tunnels, subway tunnels, and mine roadways. Especially in tunnel construction with complex geological conditions and poor surrounding rock stability, the support seat effectively guarantees the support effect of the steel arch frame, improves the safety and efficiency of tunnel construction, and provides strong support for the smooth progress of tunnel projects.

[0003] Existing support bases for tunnel steel arch frames typically use multiple bolts to fix the bottom ends of the steel arch frame. Tightening these multiple bolts requires using tools to tighten them sequentially, which is very inconvenient and reduces installation efficiency. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a support base for tunnel steel arch frames, which effectively solves the problem that the existing support bases for tunnel steel arch frames usually use multiple bolts to fix the bottom ends of the steel arch frame, and the multiple bolts need to be tightened one by one with tools.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support base for a tunnel steel arch frame, comprising a steel arch frame body, with two support base bodies located below the steel arch frame body. Connectors are fixedly installed at both ends of the bottom of the steel arch frame body. Slots are opened on the top of each support base body, and two connectors are inserted into the two slots. Two locking holes are opened on both sides of each connector. Handwheels are provided on the sides of the two support base bodies that are close to each other. Two locking heads are provided on both sides of the interior of each support base body. Openings are opened on the inner walls of both sides of the interior of each support base body. Transmission components are provided on the sides of the two handwheels that are far apart from each other. The two transmission components are respectively connected to eight locking heads. When the two handwheels rotate, power is output to the eight locking heads through the two transmission components, causing the eight locking heads to engage with the corresponding locking holes for limiting and fixing.

[0006] Preferably, both of the transmission components include shafts, which are fixedly installed on the opposite sides of the two handwheels. The surfaces of the two shafts are rotatably connected to the interior of the two support bodies via two bushings. A driving bevel gear is fixedly installed at the opposite ends of the two shafts. A driven bevel gear is meshed with the lower part of the surfaces of the two driving bevel gears. The bottoms of the two driven bevel gears are rotatably connected to the inner bottom of the two support bodies via bearings.

[0007] Preferably, each driven bevel gear has a threaded rod fixedly installed on its top, and each of the two threaded rods has a threaded sleeve threadedly connected to its surface. Each of the four openings has a movable block inside, and each movable block has an inclined groove in its middle. Each of the four inclined grooves has two transmission pins inserted into its interior. A connecting frame is fixedly installed between the two ends of the two transmission pins in the same inclined groove. The four connecting frames are fixedly connected to the two sides of the two threaded sleeves. The side of each of the four movable blocks away from the threaded sleeves is fixedly connected to eight clamps.

[0008] Preferably, the upper parts of the two threaded sleeves on opposite sides are fixedly mounted with sliding sleeves via support arms. Sliding rods are inserted into the interior of the two sliding sleeves. The two ends of the two sliding rods are fixedly connected to the interior of the two support bodies. Sliding blocks are fixedly mounted at the upper and lower ends of the four moving blocks. Sliding grooves are opened at the upper and lower ends of the four openings. The eight sliding blocks are slidably mounted inside the eight sliding grooves.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator inserts the two plugs at the bottom of the steel arch frame into the two slots on the two support bodies. Then, the operator rotates the two handwheels to drive the two shafts to rotate. When the two shafts rotate, they drive the driven bevel gear to rotate through the active bevel gear. When the driven bevel gear rotates, it drives the threaded sleeve to move down through the threaded rod. When the threaded sleeve moves, it drives the sliding sleeve to slide on the surface of the sliding rod through the support arm, which increases the stability of the two threaded sleeves when they move.

[0010] When the two threaded sleeves move, they drive the transmission pins to move downwards inside the inclined groove via the connecting frame, thereby pushing the four moving blocks to move outwards. When the moving blocks move, they drive the sliders to slide inside the groove, increasing the stability of the four moving blocks during movement. When the moving blocks move outwards, they drive the chucks to engage with the chuck holes for limiting, thus completing the installation quickly. This makes it very convenient to connect and fasten the support base to the steel arch frame, reducing the workload of operators and improving work efficiency. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the support structure for the tunnel steel arch frame of this utility model;

[0014] Figure 2 This is an exploded structural diagram of the support base for the tunnel steel arch frame of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the support body of this utility model. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the internal structure of the support body of this utility model. Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the internal structure of the support body of this utility model. Figure 3 ;

[0018] In the diagram: 1. Main body of steel arch frame; 2. Support base body; 3. Plug; 4. Locking hole; 5. Slot; 6. Handwheel; 7. Locking head; 8. Opening; 9. Shaft; 10. Bushing; 11. Driving bevel gear; 12. Driven bevel gear; 13. Shaft seat; 14. Threaded rod; 15. Threaded sleeve; 16. Moving block; 17. Inclined groove; 18. Connecting frame; 19. Support arm; 20. Sliding sleeve; 21. Sliding rod; 22. Sliding block; 23. Sliding groove; 24. Transmission pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1 to 5The present invention includes a steel arch frame body 1, with two support base bodies 2 located below the steel arch frame body 1. Connectors 3 are fixedly installed at both ends of the bottom of the steel arch frame body 1. Slots 5 are opened on the top of each support base body 2, and the two connectors 3 are inserted into the two slots 5. Two locking holes 4 are opened on both sides of each connector 3. Handwheels 6 are provided on the side of each support base body 2 that is close to each other. Two locking heads 7 are provided on both sides of the interior of each support base body 2. Openings 8 are opened on the inner walls of both sides of the interior of each support base body 2. Transmission components are provided on the side of each handwheel 6 that is far from each other. The two transmission components are respectively connected to the eight locking heads 7. When the two handwheels 6 are turned, power is output to the eight locking heads 7 through the two transmission components, causing the eight locking heads 7 to engage with the corresponding locking holes 4 for limiting and fixing.

[0021] In use, the operator inserts the two connectors 3 at the bottom of the steel arch frame body 1 into the two slots 5 on the two support bodies 2. Then, the operator rotates the two handwheels 6 to drive the two transmission components. When the transmission components are running, they push the four moving blocks 16 to move outward. When the moving blocks 16 move outward, they all drive the locking heads 7 to engage with the locking holes 4 for limiting, thus quickly completing the installation. This makes it very convenient to connect and fasten the support to the steel arch frame, reducing the workload of the operator and improving work efficiency.

[0022] Both transmission components include shafts 9, which are fixedly installed on the opposite sides of the two handwheels 6. The surfaces of the two shafts 9 are rotatably connected to the interior of the two support bodies 2 via two bushings 10. A driving bevel gear 11 is fixedly installed at the opposite ends of the two shafts 9. A driven bevel gear 12 is meshed with the lower part of the surface of the two driving bevel gears 11. The bottom of the two driven bevel gears 12 is rotatably connected to the inner bottom of the two support bodies 2 via a bearing 13.

[0023] The operator rotates two handwheels 6 to drive two shafts 9 to rotate. When the two shafts 9 rotate, they drive the driven bevel gear 12 to rotate through the driving bevel gear 11.

[0024] Each driven bevel gear 12 is fixedly mounted with a threaded rod 14. The surfaces of the two threaded rods 14 are threadedly connected with threaded sleeves 15. Each of the four openings 8 has a moving block 16 inside. Each moving block 16 has a slanted groove 17 in the middle. Each of the four slanted grooves 17 has two transmission pins 24 inserted inside. Each of the two ends of the two transmission pins 24 in the same slanted groove 17 is fixedly mounted with a connecting bracket 18. The four connecting brackets 18 are fixedly connected to the two sides of the two threaded sleeves 15. The side of the four moving blocks 16 away from the threaded sleeves 15 is fixedly connected to eight clamps 7 respectively.

[0025] When the driven bevel gear 12 rotates, it drives the threaded sleeve 15 to move downward through the threaded rod 14. When the two threaded sleeves 15 move, they drive the transmission pin 24 to move downward inside the inclined groove 17 through the connecting bracket 18, thereby pushing the four moving blocks 16 to move outward. When the moving blocks 16 move outward, they drive the clasp 7 to engage inside the clasp hole 4 for limiting, thereby quickly completing the installation.

[0026] Two threaded sleeves 15 are fixedly mounted on the upper part of the side away from each other by a support arm 19. Slide rods 21 are inserted into the inside of the two slide sleeves 20. The two ends of the two slide rods 21 are fixedly connected to the inside of the two support bodies 2 respectively. Slide blocks 22 are fixedly mounted on the upper and lower ends of the four moving blocks 16. Slide grooves 23 are opened on the upper and lower ends of the four openings 8 respectively. The eight slide blocks 22 are slidably mounted in the eight slide grooves 23 respectively.

[0027] When the threaded sleeve 15 moves, the sliding sleeve 20 slides on the surface of the sliding rod 21 through the support arm 19, which increases the stability when the two threaded sleeves 15 move; when the moving block 16 moves, the slider 22 slides inside the sliding groove 23, which increases the stability when the four moving blocks 16 move.

Claims

1. A support base for a tunnel steel arch frame, comprising a steel arch frame body (1), characterized in that: The steel arch frame body (1) has two support base bodies (2) below it. The bottom ends of the steel arch frame body (1) are fixedly installed with plugs (3). The top of the support base body (2) is provided with slots (5). The two plugs (3) are inserted into the two slots (5). The two plugs (3) are respectively provided with two locking holes (4) on both sides. The two support base bodies (2) are provided with handwheels (6) on the side that is close to each other. The two support base bodies (2) are respectively provided with two locking heads (7) on both sides inside. The inner walls of both sides inside the support base body (2) are provided with openings (8). The two handwheels (6) are provided with transmission components on the side that is far away from each other. The two transmission components are respectively connected to the eight locking heads (7). When the two handwheels (6) are running, the power is output to the eight locking heads (7) through the two transmission components, so that the eight locking heads (7) are locked into the corresponding locking holes (4) for limiting and fixing.

2. The support base for a tunnel steel arch frame according to claim 1, characterized in that: Both of the transmission components include shafts (9), which are fixedly installed on the opposite sides of the two handwheels (6). The surfaces of the two shafts (9) are rotatably connected to the interior of the two support bodies (2) through two bushings (10). The opposite ends of the two shafts (9) are fixedly installed with driving bevel gears (11). The lower parts of the surfaces of the two driving bevel gears (11) are meshed with driven bevel gears (12). The bottoms of the two driven bevel gears (12) are rotatably connected to the inner bottom of the two support bodies (2) through a bearing (13).

3. A support base for a tunnel steel arch frame according to claim 2, characterized in that: The driven bevel gear (12) is fixedly mounted with a threaded rod (14) on its top. The surfaces of the two threaded rods (14) are threadedly connected with threaded sleeves (15). The interior of each of the four openings (8) is provided with a moving block (16). The middle of each moving block (16) is provided with a slanted groove (17). Two transmission pins (24) are inserted into each of the four slanted grooves (17). A connecting frame (18) is fixedly installed between the two ends of the two transmission pins (24) in the same slanted groove (17). The four connecting frames (18) are fixedly connected to the two sides of the two threaded sleeves (15). The side of the four moving blocks (16) away from the threaded sleeves (15) is fixedly connected to eight chucks (7).

4. A support base for a tunnel steel arch frame according to claim 3, characterized in that: The upper parts of the two threaded sleeves (15) on opposite sides are fixedly mounted with sliding sleeves (20) by support arms (19). Sliding rods (21) are inserted into the interior of the two sliding sleeves (20). The two ends of the two sliding rods (21) are fixedly connected to the interior of the two support bodies (2). The upper and lower ends of the four moving blocks (16) are fixedly mounted with sliders (22). The upper and lower ends of the four openings (8) are provided with grooves (23). The eight sliders (22) are slidably mounted inside the eight grooves (23).

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