A semi-automatic safety door for shield tunnel section communication channel construction

Abstract

The present invention relates to the technical field of tunnel connecting channels, specifically a semi-automatic safety door for shield section connecting channel construction, comprising a tunnel side wall and an section channel, wherein the section channel is fixedly installed on the outer wall of the tunnel side wall, and the outer walls on both sides of the section channel are hinged with a right door and a left door, the outer wall of the right door is hinged with a right auxiliary door by a hinge, and the outer wall of the left door is hinged with a left auxiliary door by a hinge, and further comprises a plurality of rods, and the inner wall of the section channel is provided with a receiving groove, and the plurality of rods are slidably inserted into the inner wall of the receiving groove, and a tooth groove begins to be formed on one side outer wall of the plurality of rods. In the present invention, the worm can lock the worm wheel, so that the rod will not be separated from the fixing hole under the impact of external force, so that the motor drives the second rotating shaft to rotate, and then drives the worm to rotate, and finally drives the first rotating shaft to rotate through the engagement of the worm and the worm wheel, and the closure is reliable.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel communication channels, in particular to a semi-automatic safety door for shield section communication channel construction. Background Art

[0002] The safety door is an important safety guarantee for the construction of the connecting channel. It plays the role of protection, emergency avoidance, and support when the connecting channel is excavated. The safety door relies on the excavation support structure for support and consists of a door frame, door panel, movable hinge, pull plate, rotating rod, etc.

[0003] After searching, the patent number: 202020408480.6 discloses a subway shield tunnel connecting channel safety door, which uses a sliding mechanism to pull outward and rotate the handle to manually open or close the safety door; the patent number: 201910173186.3 discloses a subway shield tunnel connecting channel safety door, which relies on flange connection with the upper and lower chutes to manually open or close the safety door.

[0004] However, the prior art has the following problems:

[0005] (1) The locking reliability of the safety door after closing is insufficient. When it is impacted, the locking measures are easily damaged. The safety and reliability need to be improved.

[0006] (2) The size of the safety door after opening cannot be adjusted and cannot be folded a second time, which makes the already small space a little cramped and limited. Summary of the Invention

[0007] The purpose of the present invention is to provide a semi-automatic safety door for the construction of a shield tunnel section connecting passage, so as to solve the problems raised in the above-mentioned background technology.

[0008] The technical solution of the present invention is: a semi-automatic safety door for shield tunnel section connecting passage construction, comprising a tunnel side wall and a section passage, wherein the section passage is fixedly mounted on the outer wall of the tunnel side wall, a right door and a left door are hingedly connected to the outer wall of both sides of the section passage, a right auxiliary door is hingedly connected to the outer wall of the right door, and a left auxiliary door is hingedly connected to the outer wall of the left door, and further comprising:

[0009] Multiple insertion rods, the inner wall of the interval channel is provided with a storage groove, the multiple insertion rods are slidably inserted into the inner wall of the storage groove, and the outer wall of one side of the multiple insertion rods begins to have a tooth groove, the top and bottom of the interval channel are fixedly installed with a bracket, the outer wall of the bracket passes through and is rotatably connected to a rotating shaft 1, the outer wall of the rotating shaft 1 is fixedly installed with multiple gears, the gears are engaged with the tooth grooves on the outer wall of the insertion rod, one end of the rotating shaft 1 is connected to a driving mechanism, and the outer walls of one side of the right door, the right auxiliary door, the left door and the left auxiliary door are provided with a fixing hole adapted for the insertion rod.

[0010] Preferably, the driving mechanism includes a worm gear fixedly mounted on one end of the rotating shaft, a folding plate is fixedly mounted on the top outer wall of the interval channel, a motor is fixedly mounted on the bottom of the folding plate, a rotating shaft 2 is fixedly mounted on the top end of the output shaft of the motor, two worms are fixedly mounted on the outer wall of the rotating shaft 2, and both the rotating shaft 1 and the worm gear are provided with two, and the worm and the worm wheel form a meshing transmission.

[0011] Preferably, base columns are fixedly installed on the top and bottom of the left door and the right door, and the outer walls of the base columns are provided with sleeve blocks. The inner wall of the tunnel side wall is fixedly installed with a base block, and a hydraulic rod is fixedly installed on the outer wall of one side of the base block, and the top end of the piston rod of the hydraulic rod is fixedly connected to the outer wall of one side of the sleeve block.

[0012] Preferably, the adjacent sides of the left auxiliary door and the right auxiliary door are provided with meshing folding docking interfaces, the inner wall of the folding docking interface is provided with a second sealing groove, and the inner wall of the folding docking interface is clamped with a sealing column.

[0013] Preferably, the sealing column provided on the inner wall of the left auxiliary door is adapted to the second sealing groove provided on the inner wall of the right auxiliary door, and the sealing column provided on the inner wall of the right auxiliary door is adapted to the second sealing groove provided on the inner wall of the left auxiliary door.

[0014] Preferably, a sealing groove 1 is provided on one outer wall of the right door, right auxiliary door, left door and left auxiliary door, and an installation groove is provided on one outer wall of the interval channel. A sealing strip is attached to the inner wall of the installation groove, and the sealing strip is adapted to the size of the sealing groove 1.

[0015] Preferably, one side outer wall of the right door, right auxiliary door, left door and left auxiliary door is provided with a slot, the inner wall of the slot is hinged with a pull plate through a hinge, and one end of the two pull plates is hinged to the same connecting block.

[0016] Preferably, a controller is embedded in the inner wall of the interval channel, the controller is electrically connected to the motor and the hydraulic rod, and the controller is connected to a remote control center via wireless signals.

[0017] The present invention provides a semi-automatic safety door for shield tunnel section communication channel construction through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, after the right door, the right auxiliary door, the left door and the left auxiliary door are closed, the present invention starts the motor to drive the second rotating shaft to rotate, which in turn drives the worm to rotate, and the engagement of the worm and the worm wheel ultimately drives the first rotating shaft and the gear to rotate, and finally drives the insertion rod to be inserted into the fixing hole through the gear. Since the worm can lock the worm wheel, the insertion rod will not fall out of the fixing hole under the impact of external force, so that the motor drives the second rotating shaft to rotate, which in turn drives the worm to rotate, and the engagement of the worm and the worm wheel ultimately drives the first rotating shaft to rotate, thereby achieving reliable closure.

[0019] Secondly, the present invention drives the pull plate to bend by pulling the connecting block outward, thereby driving the right door and the right auxiliary door to fold again, and the left door and the left auxiliary door to fold again, thereby reducing their size, saving space, and facilitating citizens to pass faster and more safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 It is a perspective view of the left door and the left auxiliary door in the present invention;

[0023] Figure 3 It is a three-dimensional diagram of the left door and the left auxiliary door in another perspective of the present invention;

[0024] Figure 4 It is a perspective view of the intermediate passage, left door and right door portion of the present invention;

[0025] Figure 5 yes Figure 4 A partial enlarged view of part A;

[0026] Figure 6 yes Figure 4 A partial enlarged view of part B;

[0027] Figure 7 is a side view of the present invention;

[0028] Figure 8 yes Figure 4 A partial enlarged view of part C in the middle;

[0029] Figure 9 It is a three-dimensional diagram of the tunnel side wall and the interval passage portion in the present invention;

[0030] Figure 10 It is a three-dimensional diagram of the pull plate part of the present invention.

[0031] Description of reference numerals:

[0032] 1. Tunnel side wall; 2. Interval passage; 3. Right door; 4. Right auxiliary door; 5. Left door; 6. Left auxiliary door; 7. Base column; 8. Bushing block; 9. Hydraulic rod; 10. Base block; 11. Pull plate; 12. Fixing hole; 13. Sealing groove 1; 14. Folding docking port; 15. Sealing column; 16. Slot; 17. Insert rod; 18. Sealing groove 2; 19. Folding plate; 20. Motor; 21. Worm; 22. Worm gear; 23. Rotating shaft 1; 24. Rotating shaft 2; 25. Storage slot; 26. Sealing strip; 27. Gear; 28. Connecting block. DETAILED DESCRIPTION

[0033] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention provides a semi-automatic safety door for shield tunneling section communication channel construction through improvement. The technical solution of the present invention is:

[0035] like Figures 1-10 As shown, a semi-automatic safety door for shield tunnel section communication channel construction includes a tunnel side wall 1 and a section channel 2. The section channel 2 is fixedly mounted on the outer wall of the tunnel side wall 1. The outer walls of the section channel 2 are hinged with a right door 3 and a left door 5. The outer wall of the right door 3 is hinged with a right auxiliary door 4. The outer wall of the left door 5 is hinged with a left auxiliary door 6. The door also includes:

[0036] Multiple insertion rods 17, the inner wall of the interval channel 2 is provided with a storage groove 25, multiple insertion rods 17 are slidably inserted into the inner wall of the storage groove 25, and the outer wall of one side of the multiple insertion rods 17 begins to have a tooth groove, the top and bottom of the interval channel 2 are fixedly installed with brackets, the outer wall of the bracket passes through and is rotatably connected to a rotating shaft 23, and the outer wall of the rotating shaft 23 is fixedly installed with multiple gears 27, the gears 27 are engaged with the tooth grooves on the outer wall of the insertion rod 17, and one end of the rotating shaft 23 is connected to a driving mechanism, and the outer walls of one side of the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 are provided with a fixing hole 12 adapted to the insertion rod 17.

[0037] Furthermore, the driving mechanism includes a worm gear 22 fixedly mounted on one end of the rotating shaft 1 23, a folding plate 19 fixedly mounted on the top outer wall of the interval channel 2, a motor 20 fixedly mounted on the bottom of the folding plate 19, a rotating shaft 2 24 fixedly mounted on the top of the output shaft of the motor 20, two worms 21 fixedly mounted on the outer wall of the rotating shaft 2 24, and two rotating shafts 1 23 and two worm gears 22 are provided, and the worms 21 and the worm gears 22 form a meshing transmission.

[0038] It should be further explained that the helix angle of the worm 21 set in this solution is smaller than the equivalent friction angle between the meshing teeth of the worm 21 and the worm wheel 22, which can achieve effective self-locking and prevent the safety door from loosening when impacted.

[0039] Furthermore, base columns 7 are fixedly installed on the top and bottom of the left door 5 and the right door 3, and the outer wall of the base column 7 is provided with a sleeve block 8. The inner wall of the tunnel side wall 1 is fixedly installed with a base block 10, and a hydraulic rod 9 is fixedly installed on the outer wall of one side of the base block 10. The top end of the piston rod of the hydraulic rod 9 is fixedly connected to the outer wall of one side of the sleeve block 8.

[0040] It should be further explained that the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 are flipped open or closed by starting the hydraulic rod 9 and retracting the piston rod.

[0041] Furthermore, the adjacent sides of the left auxiliary door 6 and the right auxiliary door 4 are provided with meshing folding docking interfaces 14, the inner wall of the folding docking interface 14 is provided with a sealing groove 2 18, and the inner wall of the folding docking interface 14 is clamped with a sealing column 15. The setting of the sealing column 15 makes the connection between the left auxiliary door 6 and the right auxiliary door 4 tighter.

[0042] Furthermore, the sealing column 15 provided on the inner wall of the left auxiliary door 6 is adapted to the second sealing groove 18 provided on the inner wall of the right auxiliary door 4 , and the sealing column 15 provided on the inner wall of the right auxiliary door 4 is adapted to the second sealing groove 18 provided on the inner wall of the left auxiliary door 6 .

[0043] Furthermore, a sealing groove 13 is provided on one side outer wall of the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6, and an installation groove is provided on one side outer wall of the interval channel 2. A sealing strip 26 is attached to the inner wall of the installation groove. The size of the sealing strip 26 is adapted to the size of the sealing groove 13. The way in which the sealing strip 26 engages with the sealing groove 13 improves the sealing effect of the safety door and prevents mud and water from passing through.

[0044] Furthermore, a slot 16 is formed on one side of the outer wall of the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6. A pull plate 11 is hingedly connected to the inner wall of the slot 16. One end of the two pull plates 11 is hingedly connected to the same connecting block 28.

[0045] It should be further explained that by pulling the connecting block 28 outward, the pull plate 11 is bent, and then the right door 3 and the right auxiliary door 4 are folded again, and the left door 5 and the left auxiliary door 6 are folded again, so that their size is reduced, the floor space is saved, and citizens can pass faster and more safely.

[0046] Furthermore, a controller is buried in the inner wall of the interval channel 2, and the controller is electrically connected to the motor 20 and the hydraulic rod 9, and the controller is connected to the remote control center via wireless signals.

[0047] The semi-automatic safety door is characterized in that the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 can be opened manually or by sending instructions to the controller through the remote control center, which can control the operating status of the motor 20 and the hydraulic rod 9, thereby realizing the automatic opening and closing of the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6. The specific operation is: when it is necessary to connect the adjacent tunnels, start the motor 20 to drive the rotating shaft 24 to rotate, and then drive the worm 21 to rotate, and finally drive the rotating shaft 1 23 to rotate through the engagement of the worm 21 and the worm wheel 22, and drive the synchronous rotation of the gear 27 through the rotating shaft 1 23, and then drive the plug rod 17 through the engagement of the gear 27 with the tooth groove on one side of the plug rod 17. The purpose of sliding 17 is to slide the insertion rod 17 out of the fixing hole 12 until the insertion rod 17 is completely received in the inner wall of the receiving groove 25, thereby releasing the locking of the interval passage 2 on the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6, and then start the hydraulic rod 9 to retract the piston rod to respectively realize the flip opening of the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6, and after the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 are all opened, the connecting block 28 is pulled outward to drive the pull plate 11 to bend and then drive the right door 3 and the right auxiliary door 4 to fold again, and the left door 5 and the left auxiliary door 6 to fold again, so that their sizes are reduced, space is saved, and citizens can pass through faster and more safely;

[0048] After the personnel have passed safely, the piston rod can be pushed out again by the hydraulic rod 9 to rotate the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 to the side of the interval passage 2. The provided sealing column 15 and sealing strip 26 can effectively improve the sealing of the safety door. At the same time, after the right door 3, the right auxiliary door 4, the left door 5 and the left auxiliary door 6 are closed, the motor 20 is started to drive the rotating shaft 24 to rotate, and then drive the worm 21 to rotate, and finally drive the rotating shaft 1 23 and the gear 27 to rotate through the engagement of the worm 21 and the worm wheel 22, and finally drive the insert rod 17 to be inserted into the fixing hole 12 through the gear 27. Since the worm 21 can lock the worm wheel 22, the insert rod 17 will not be separated from the fixing hole 12 under the impact of external force, so that the motor 20 drives the rotating shaft 24 to rotate, and then drives the worm 21 to rotate, and finally drives the rotating shaft 1 23 to rotate through the engagement of the worm 21 and the worm wheel 22, and the sealing is reliable.

[0049] The safety door structure of this solution is sturdy and stable, which improves flexibility, reduces tedious manual operations, and ensures the safety and continuity of the communication channel construction.

[0050] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A semi-automatic safety door for shield tunnel section connecting passage construction, comprising a tunnel side wall (1) and a section passage (2), wherein the section passage (2) is fixedly mounted on the outer wall of the tunnel side wall (1), and the outer walls of both sides of the section passage (2) are hingedly connected to a right door (3) and a left door (5), the outer wall of the right door (3) is hingedly connected to a right auxiliary door (4), and the outer wall of the left door (5) is hingedly connected to a left auxiliary door (6), characterized in that: Also includes: A plurality of insertion rods (17), the inner wall of the interval channel (2) is provided with a receiving groove (25), the plurality of the insertion rods (17) are slidably inserted into the inner wall of the receiving groove (25), and a tooth groove is provided on one side outer wall of the plurality of the insertion rods (17), the top and bottom of the interval channel (2) are fixedly installed with a bracket, the outer wall of the bracket passes through and is rotatably connected to a rotating shaft (23), the outer wall of the rotating shaft (23) is fixedly installed with a plurality of gears (27), the gears (27) are engaged with the tooth grooves on the outer wall of the insertion rod (17), one end of the rotating shaft (23) is connected to a driving mechanism, the outer walls of one side of the right door (3), the right auxiliary door (4), the left door (5) and the left auxiliary door (6) are all provided with a gear adapted to fit the insertion rod (17) The fixing hole (12) is provided, the driving mechanism includes a worm wheel (22) fixedly mounted on one end of the rotating shaft (23), the top outer wall of the interval channel (2) is fixedly mounted with a folding plate (19), the bottom of the folding plate (19) is fixedly mounted with a motor (20), the top end of the output shaft of the motor (20) is fixedly mounted with a rotating shaft (24), the outer wall of the rotating shaft (24) is fixedly mounted with two worms (21), the rotating shaft (23) and the worm wheel (22) are both provided with two, the worms (21) and the worm wheel (22) form a meshing transmission, the top and bottom of the left door (5) and the right door (3) are fixedly mounted with a base column (7), the outer wall of the base column (7) is provided with a sleeve block (8), the tunnel side The inner wall of the wall (1) is fixedly mounted with a base block (10), and the outer wall of one side of the base block (10) is fixedly mounted with a hydraulic rod (9), and the piston rod top of the hydraulic rod (9) is fixedly connected to the outer wall of one side of the sleeve block (8), and the adjacent sides of the left auxiliary door (6) and the right auxiliary door (4) are provided with meshing folding docking ports (14), and the inner wall of the folding docking port (14) is provided with a sealing groove 2 (18), and the inner wall of the folding docking port (14) is clamped with a sealing column (15), and the sealing column (15) provided on the inner wall of the left auxiliary door (6) is adapted to the sealing groove 2 (18) provided on the inner wall of the right auxiliary door (4), and the sealing column (15) provided on the inner wall of the right auxiliary door (4) is adapted to the inner wall of the left auxiliary door (6). The second sealing groove (18) is adapted, and the outer wall of one side of the right door (3), the right auxiliary door (4), the left door (5) and the left auxiliary door (6) is provided with a sealing groove (13). The outer wall of one side of the interval channel (2) is provided with a mounting groove, and the inner wall of the mounting groove is attached with a sealing strip (26). The size of the sealing strip (26) is adapted to the size of the sealing groove (13). The outer wall of one side of the right door (3), the right auxiliary door (4), the left door (5) and the left auxiliary door (6) is provided with a slot (16). The inner wall of the slot (16) is hinged with a pull plate (11) through a hinge, and one end of the two pull plates (11) is hinged with the same connecting block (28). The inner wall of the interval channel (2) is embedded with a controller.The controller is electrically connected to the motor (20) and the hydraulic rod (9), and the controller is connected to a remote control center via wireless signals.

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