Tunnel arch springing reinforcing device

Abstract

The invention relates to the technical field of tunnel arch foot reinforcing, and discloses a tunnel arch foot reinforcing device which comprises a base, arch feet are fixedly connected to the two sides of the bottom end of a steel arch frame, a bottom plate is fixedly connected to the bottom ends of the arch feet, a slurry outlet hole is formed in the bottom end of the bottom plate, and a through groove is formed in the opposite side of the slurry outlet hole; the inner wall of the arch foot is fixedly connected with a locking mechanism, the opposite side of the locking mechanism is fixedly connected with a fixing mechanism used for assisting in fixing the arch foot, one end of the fixing mechanism is fixedly connected with an auxiliary mechanism, and the outer wall of the arch foot is fixedly connected with two sets of supporting plates which are in bilateral symmetry. The supporting plate is arranged on the supporting column, so that the supporting plate supports the hole wall formed in the supporting column, the auxiliary supporting effect on the arch springing is achieved, a hand wheel is used for synchronously driving, personnel can operate more conveniently, meanwhile, the situation that the personnel sink during follow-up work can be prevented through the device, and the device is more stable and rapid.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel arch foot reinforcement, in particular to a tunnel arch foot reinforcement device. Background Art

[0002] During the tunnel construction process, it is necessary to set up multiple steel arch frames made of I-beams along the tunnel direction to form support, and the arch feet of the steel arch frames need to be reinforced. Usually, the two arch feet are arc-shaped and bent inward toward each other. The traditional tunnel arch foot reinforcement device is usually a locking foot anchor rod or anchor pipe. The anchor rod generally uses a φ22 drug-coated anchor rod or a φ22 mortar anchor rod; the anchor pipe generally uses a φ42 small guide tube; and two "L"-shaped or a single "U"-shaped φ25 fixed steel bars are used to weld the arch frame and the locking foot anchor rod firmly to form a locking foot fixing device.

[0003] In the prior art, the name disclosed in the application number: CN218912907U is: a tunnel arch foot reinforcement device, which includes an arch foot reinforcement assembly and a locking foot fixing assembly simultaneously connected to the arch foot reinforcement assembly and the steel arch frame, a sub-bracket is fixed at the arch foot of the steel arch frame, and the sub-bracket includes a support foot and a connecting rod, one end of the support foot is fixed to the outer side of the steel arch frame, and the other end extends downward and is flush with the lower end of the steel arch frame, and the two ends of the connecting rod are respectively fixed to the support foot and the steel arch frame.

[0004] However, the above patent only achieves fixation at the bottom during use, so the steel arch frame may sink when the mountain shakes. At the same time, the above patent is relatively inconvenient to use, which brings great difficulty to the personnel. Summary of the invention

[0005] The object of the present invention is to provide a tunnel arch foot reinforcement device to solve the problems in the prior art.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A tunnel arch foot reinforcement device comprises a base, arch feet are fixedly connected to both sides of the bottom end of the steel arch frame, the bottom end of the arch foot is fixedly connected to a bottom plate, a paddle outlet hole is opened at the bottom end of the bottom plate, and a through groove is opened on the opposite side of the paddle outlet hole, a locking mechanism is fixedly connected to the inner wall of the arch foot, and a fixing mechanism for auxiliary fixing of the arch foot is fixedly connected to the opposite side of the locking mechanism, one end of the fixing mechanism is fixedly connected to an auxiliary mechanism, and two groups of left-right symmetrical support plates are fixedly connected to the outer wall of the arch foot.

[0008] Preferably, the auxiliary mechanism includes a transmission rod, a fixed tube, a sleeve, a transmission ring, a folding rod, a support plate and a connecting rod, the transmission rod is rotatably connected to the inside of the sleeve, and one end of the transmission rod extends to the outside of the sleeve, the sleeve is fixedly connected to one side of the fixed tube, and one side of the sleeve extends to the inside of the fixed tube, one end of the transmission rod is provided with a thread, and the transmission ring is threadedly connected to one end of the transmission rod.

[0009] Preferably, there are multiple folding rods, one end of the folding rod is hinged to the outer wall of the transmission ring, and the other end of the folding rod is hinged to the outer wall of the sleeve, the outer wall of the fixed tube is provided with multiple movable grooves, the middle section of the folding rod is hinged to one side of the inner wall of the support plate through the movable groove, and the outer wall of the support plate is provided with an anti-slip groove.

[0010] Preferably, one end of the connecting rod is hinged to the other side of the inner wall of the support plate through a movable groove, and the other end of the connecting rod is hinged to the outer wall of the sleeve, the rotation of the transmission rod is connected to the inside of the fixed tube, and the support plate is movably connected to the outer wall of the fixed tube.

[0011] Preferably, the fixing mechanism includes a handwheel, a worm, a worm wheel, a fixing column, a connecting column and a spring, one end of the worm is fixedly connected to the axis of the handwheel, the worm wheel is provided with two symmetrical front and rear ends, and the worm movable tube is connected to the opposite side of the worm wheel, the worm wheel is fixedly connected to the bottom end of the connecting column, the top end of the fixing column is provided with a thread, and the top end of the fixing column is threadedly connected to the inside of the connecting column.

[0012] Preferably, a fixing plate is fixedly connected to the opposite side of the fixing column, the top end of the spring one is fixedly connected to the bottom end of the fixing plate, and the bottom end of the spring one is fixedly connected to the inner bottom end of the bottom plate, and the bottom end of the fixing column is movably connected to the inside of the through groove.

[0013] Preferably, the top end of the connecting column is rotatably connected to the inner top end of the arch foot, the other end of the worm is fixedly connected to the other end of the transmission rod, one end of the worm extends to the outside of the arch foot, and the outer wall of the handwheel is provided with a plurality of limit grooves.

[0014] Preferably, the locking mechanism includes a fixed seat, a screw, a handle, a second spring and a block, the screw is rotatably connected to the inside of the fixed seat, and one end of the screw extends to the outside of the fixed seat and is fixedly connected to the handle, and the other end of the screw is rotatably connected to the outer wall of the block, one end of the second spring is fixedly connected to the inner wall of the fixed seat, and the other end of the second spring is fixedly connected to the outer wall of the block.

[0015] Preferably, one side of the clamping block is matched with the limiting groove, the fixing seat is fixedly connected to the inner wall of the arch foot, and one end of the screw rod is threadedly connected to the fixing seat.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention expands the support plate outward, so that the support plate support column opens the hole wall, which can achieve the auxiliary support of the arch foot. The hand wheel can be driven synchronously to make the operation more convenient for personnel. At the same time, this device can prevent personnel from sinking during subsequent work, which is more stable and fast.

[0018] 2. The present invention achieves the fixing effect by inserting the fixing column into the bottom end below, and can effectively prevent the arch foot and the steel arch frame from sinking by cooperating with the auxiliary mechanism, while improving the stability during the installation process and reducing the difficulty of personnel operation;

[0019] 3. The present invention drives the screw to rotate by rotating the handle, and the screw will drive one side of the block to insert into the interior of the limit groove. At this time, the hand wheel cannot rotate, thereby preventing the fixing mechanism and the auxiliary mechanism from loosening when the personnel perform subsequent work on the arch foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0023] Figure 3 It is a schematic diagram of a local explosion structure of the present invention;

[0024] Figure 4 It is a partial enlarged structural schematic diagram of the present invention;

[0025] Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 6 The present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0027] 1. Steel arch frame; 2. Arch foot; 3. Bottom plate; 4. Locking mechanism; 401. Fixed seat; 402. Screw; 403. Handle; 404. Spring 2; 405. Block; 5. Fixing mechanism; 501. Handwheel; 502. Worm; 503. Worm wheel; 504. Fixed column; 505. Connecting column; 506. Spring 1; 6. Auxiliary mechanism; 601. Transmission rod; 602. Fixed pipe; 603. Sleeve; 604. Transmission ring; 605. Folding rod; 606. Support plate; 607. Connecting rod; 7. Support plate; 8. Movable slot; 9. Fixed plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] A tunnel arch foot reinforcement device, such as Figure 1 As shown, it includes a base, arch feet 2 are fixedly connected to both sides of the bottom end of the steel arch frame 1, the bottom end of the arch foot 2 is fixedly connected to a bottom plate 3, the bottom end of the bottom plate 3 is provided with a paddle outlet hole, and the opposite side of the paddle outlet hole is provided with a through groove, the inner wall of the arch foot 2 is fixedly connected with a locking mechanism 4, and the opposite side of the locking mechanism 4 is fixedly connected with a fixing mechanism 5 for auxiliary fixing of the arch foot 2, one end of the fixing mechanism 5 is fixedly connected with an auxiliary mechanism 6, and the outer wall of the arch foot 2 is fixedly connected with two groups of left-right symmetrical support plates 7.

[0030] First, after placing the steel arch frame 1 and the arch foot 2 at the designated position, the fixing mechanism 5 can be controlled to be inserted into the ground to achieve the effect of preliminary fixing. At the same time, after the auxiliary mechanism 6 and the support plate 7 are inserted into the holes opened in the wall in advance, the auxiliary mechanism 6 can be controlled to support the inner wall of the hole, thereby achieving the effect of auxiliary fixing. After the operation of the auxiliary mechanism 6 and the fixing mechanism 5 is completed, the locking mechanism 4 can be controlled to limit the fixing mechanism 5 to prevent loosening.

[0031] like Figure 3-4 As shown, the auxiliary mechanism 6 includes a transmission rod 601, a fixed tube 602, a sleeve 603, a transmission ring 604, a folding rod 605, a support plate 606 and a connecting rod 607. The transmission rod 601 is rotatably connected to the inside of the sleeve 603, and one end of the transmission rod 601 extends to the outside of the sleeve 603. The sleeve 603 is fixedly connected to one side of the fixed tube 602, and one side of the sleeve 603 extends to the inside of the fixed tube 602. One end of the transmission rod 601 is provided with a thread, and the transmission ring 604 is threadedly connected to one end of the transmission rod 601. A plurality of folding rods 605 are provided, and one end of the folding rod 605 One end of the folding rod 605 is hinged to the outer wall of the transmission ring 604, and the other end of the folding rod 605 is hinged to the outer wall of the sleeve 603. The outer wall of the fixed tube 602 is provided with a plurality of movable grooves 8. The middle section of the folding rod 605 is hinged to one side of the inner wall of the support plate 606 through the movable groove 8. The outer wall of the support plate 606 is provided with an anti-slip groove. One end of the connecting rod 607 is hinged to the other side of the inner wall of the support plate 606 through the movable groove 8, and the other end of the connecting rod 607 is hinged to the outer wall of the sleeve 603. The rotation of the transmission rod 601 is connected to the inside of the fixed tube 602, and the support plate 606 is movably connected to the outer wall of the fixed tube 602.

[0032] When the hand wheel 501 is turned, the transmission rod 601 will be driven to rotate, and the transmission rod 601 will drive the transmission ring 604 to move inward, thereby driving the folding rod 605 to fold. At this time, the folding rod 605 will synchronously drive the surrounding support plates 606 to expand outward together with the connecting rod 607, so that the support plates 606 support the hole wall opened by the support column, thereby achieving the function of auxiliary support for the arch foot 2. The synchronous drive of the hand wheel 501 can make it more convenient for personnel to operate. At the same time, this equipment can prevent personnel from sinking when performing subsequent work, which is more stable and quick.

[0033] like Figure 2-5 As shown, the fixing mechanism 5 includes a hand wheel 501, a worm 502, a worm wheel 503, a fixing column 504, a connecting column 505 and a spring 506. One end of the worm 502 is fixedly connected to the axis of the hand wheel 501. The worm wheel 503 is provided with two symmetrical front and rear ends, and the movable tube of the worm 502 is connected to the opposite side of the worm wheel 503. The worm wheel 503 is fixedly connected to the bottom end of the connecting column 505. The top end of the fixing column 504 is provided with a thread, and the top end of the fixing column 504 is threadedly connected to the inside of the connecting column 505. The opposite side of the fixed column 504 is fixedly connected with a fixed plate 9, the top end of a spring 506 is fixedly connected to the bottom end of the fixed plate 9, and the bottom end of a spring 506 is fixedly connected to the inner bottom end of the bottom plate 3, the bottom end of the fixed column 504 is movably connected to the inside of the through groove, the top end of the connecting column 505 is rotatably connected to the inner top end of the arch foot 2, the other end of the worm 502 is fixedly connected to the other end of the transmission rod 601, one end of the worm 502 extends to the outside of the arch foot 2, and a plurality of limit grooves are provided on the outer wall of the hand wheel 501.

[0034] By rotating the handwheel 501, the handwheel 501 will drive the worm wheels 503 on both sides to rotate through the worm 502, and the worm wheels 503 will drive the connecting column 505 to rotate synchronously. During the rotation of the connecting column 505, the fixing column 504 will be driven down by the action of the thread, so that the fixing column 504 is inserted into the bottom end below, thereby achieving a fixing effect. By cooperating with the auxiliary mechanism 6, the arch foot 2 and the steel arch frame 1 can be effectively prevented from sinking, while improving the stability during the installation process and reducing the difficulty of personnel operation.

[0035] like Figure 3-6As shown, the locking mechanism 4 includes a fixed seat 401, a screw 402, a handle 403, a spring 404 and a block 405, the screw 402 is rotatably connected to the inside of the fixed seat 401, and one end of the screw 402 extends to the outside of the fixed seat 401 and is fixedly connected to the handle 403, and the other end of the screw 402 is rotatably connected to the outer wall of the block 405, one end of the spring 404 is fixedly connected to the inner wall of the fixed seat 401, and the other end of the spring 404 is fixedly connected to the outer wall of the block 405, one side of the block 405 is adapted to the limiting groove, the fixed seat 401 is fixedly connected to the inner wall of the arch foot 2, and one end of the screw 402 is threadedly connected to the fixed seat 401.

[0036] After the control of the fixing mechanism 5 and the auxiliary mechanism 6 is completed, the screw 402 can be driven to rotate by turning the handle 403. At this time, the screw 402 will drive one side of the block 405 to insert into the inside of the limit groove. At this time, the handwheel 501 cannot be rotated, thereby preventing the fixing mechanism 5 and the auxiliary mechanism 6 from loosening when personnel perform subsequent work on the arch foot 2.

[0037] Here’s how it works:

[0038] First, by turning the hand wheel 501, the hand wheel 501 will drive the worm wheels 503 on both sides to rotate through the worm 502, and the worm wheels 503 will drive the connecting column 505 to rotate synchronously. During the rotation of the connecting column 505, the fixing column 504 will be driven down by the action of the thread, so that the fixing column 504 is inserted into the bottom end below, thereby achieving a fixing effect. When the hand wheel 501 is turned, the transmission rod 601 will be driven to rotate, and the transmission rod 601 will drive the transmission ring 604 to move closer to the inside, thereby driving the folding rod 605 to fold. At this time, the folding rod 605 will synchronously drive the surrounding support plates 606 to expand outward together with the connecting rod 607, so that the support plate 606 supports the hole wall opened by the support column, thereby achieving the function of auxiliary support for the arch foot 2. After the control of the fixing mechanism 5 and the auxiliary mechanism 6 is completed, the screw 402 can be driven to rotate by turning the handle 403. At this time, the screw 402 will drive one side of the block 405 to insert into the interior of the limit groove. At this time, the hand wheel 501 cannot be rotated, thereby preventing the fixing mechanism 5 and the auxiliary mechanism 6 from loosening when personnel perform subsequent work on the arch foot 2.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A tunnel arch foot reinforcement device, comprising a steel arch frame (1), characterized in that: The bottom ends of the steel arch frame (1) are fixedly connected with arch feet (2) on both sides, the bottom ends of the arch feet (2) are fixedly connected with a bottom plate (3), the bottom ends of the bottom plates (3) are provided with a paddle outlet hole, and the opposite sides of the paddle outlet hole are provided with a through groove, the inner wall of the arch foot (2) is fixedly connected with a locking mechanism (4), and the opposite side of the locking mechanism (4) is fixedly connected with a fixing mechanism (5) for auxiliary fixing of the arch foot (2), one end of the fixing mechanism (5) is fixedly connected with an auxiliary mechanism (6), and the outer wall of the arch foot (2) is fixedly connected with two groups of left-right symmetrical support plates (7).

2. A tunnel arch foot reinforcement device according to claim 1, characterized in that: The auxiliary mechanism (6) comprises a transmission rod (601), a fixed tube (602), a sleeve (603), a transmission ring (604), a folding rod (605), a support plate (606) and a connecting rod (607); the transmission rod (601) is rotatably connected to the inside of the sleeve (603), and one end of the transmission rod (601) extends to the outside of the sleeve (603); the sleeve (603) is fixedly connected to one side of the fixed tube (602), and one side of the sleeve (603) extends to the inside of the fixed tube (602); one end of the transmission rod (601) is provided with a thread, and the transmission ring (604) is threadedly connected to one end of the transmission rod (601).

3. A tunnel arch foot reinforcement device according to claim 2, characterized in that: The folding rod (605) is provided with a plurality of them, one end of the folding rod (605) is hinged to the outer wall of the transmission ring (604), and the other end of the folding rod (605) is hinged to the outer wall of the sleeve (603), the outer wall of the fixed tube (602) is provided with a plurality of movable grooves (8), the middle section of the folding rod (605) is hinged to one side of the inner wall of the support plate (606) through the movable groove (8), and the outer wall of the support plate (606) is provided with an anti-slip groove.

4. A tunnel arch foot reinforcement device according to claim 2, characterized in that: One end of the connecting rod (607) is hinged to the other side of the inner wall of the support plate (606) through a movable groove (8), and the other end of the connecting rod (607) is hinged to the outer wall of the sleeve (603), the rotation of the transmission rod (601) is connected to the inside of the fixed tube (602), and the support plate (606) is movably connected to the outer wall of the fixed tube (602).

5. The tunnel arch foot reinforcement device according to claim 1, characterized in that: The fixing mechanism (5) comprises a hand wheel (501), a worm (502), a worm wheel (503), a fixing column (504), a connecting column (505) and a spring (506); one end of the worm (502) is fixedly connected to the axis of the hand wheel (501); the worm wheel (503) is provided with two symmetrical front and rear ends, and a movable tube of the worm (502) is connected to the opposite side of the worm wheel (503); the worm wheel (503) is fixedly connected to the bottom end of the connecting column (505); a thread is provided on the top end of the fixing column (504), and the top end of the fixing column (504) is threadedly connected to the inside of the connecting column (505).

6. A tunnel arch foot reinforcement device according to claim 5, characterized in that: The opposite side of the fixing column (504) is fixedly connected to a fixing plate (9), the top end of the spring 1 (506) is fixedly connected to the bottom end of the fixing plate (9), and the bottom end of the spring 1 (506) is fixedly connected to the inner bottom end of the bottom plate (3), and the bottom end of the fixing column (504) is movably connected to the inside of the through groove.

7. The tunnel arch foot reinforcement device according to claim 5, characterized in that: The top end of the connecting column (505) is rotatably connected to the inner top end of the arch foot (2), the other end of the worm (502) is fixedly connected to the other end of the transmission rod (601), one end of the worm (502) extends to the outside of the arch foot (2), and the outer wall of the hand wheel (501) is provided with a plurality of limit grooves.

8. The tunnel arch foot reinforcement device according to claim 1, characterized in that: The locking mechanism (4) comprises a fixing seat (401), a screw rod (402), a handle (403), a second spring (404) and a block (405); the screw rod (402) is rotatably connected to the inside of the fixing seat (401), one end of the screw rod (402) extends to the outside of the fixing seat (401) and is fixedly connected to the handle (403), and the other end of the screw rod (402) is rotatably connected to the outer wall of the block (405); one end of the second spring (404) is fixedly connected to the inner wall of the fixing seat (401), and the other end of the second spring (404) is fixedly connected to the outer wall of the block (405).

9. The tunnel arch foot reinforcement device according to claim 8, characterized in that: One side of the clamping block (405) is matched with the limiting groove, the fixing seat (401) is fixedly connected to the inner wall of the arch foot (2), and one end of the screw rod (402) is threadedly connected to the fixing seat (401).

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