A shield segment suction device that prevents falling off

Abstract

The present invention discloses an anti-falling shield segment suction device, which relates to the technical field of shield construction, and includes a connection base, a first adsorption component and a second adsorption component. The connection base is provided with a first electric push rod on both sides inside, and the output end of the first electric push rod is connected to a frame component, and the bottom end of the frame component is connected to the first adsorption component. In the present invention, the rotation of the auxiliary bracket and the adsorption of the first suction cup are linked by the displacement of the piston block. When the shield segment is hoisted to the designated position, the piston block retreats to quickly release the adsorption of the first suction cup and the shield segment and the support of the shield segment by the auxiliary bracket. Through this design, the equipment can quickly release the auxiliary fixation outside the shield segment, thereby improving the installation efficiency of the shield segment. This can also avoid the problem of low installation efficiency caused by the traditional use of ropes and steel frames for auxiliary fixation, which leads to easy installation interference and difficulty in removal of the shield segment.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction, in particular to an anti-falling shield segment suction device. Background Art

[0002] Shield segments refer to precast concrete or steel annular structural components used to form the tunnel lining during shield construction. Shield segments mainly support the inner wall of the tunnel and prevent groundwater and soil leakage. At the same time, they must also meet certain aesthetic and durability requirements. Individual segments are generally fan-shaped and assembled into annular structures. Segment materials are often reinforced concrete, but steel is also used. Due to their unique shape, shield segments cannot be equipped with lifting rings or other auxiliary lifting devices on their surface. Therefore, suction devices are used to assist lifting during the process inside the shield segments.

[0003] The shield segments commonly found on the market can easily fall off during use due to reasons such as the skewed suction position of the suction cup, the shield segments being too heavy, and the shield segments shaking too much during lifting. In order to prevent this situation, ropes and steel frames are usually used for auxiliary lifting. However, ropes and steel frames will interfere with the installation of the shield segments, seriously affecting the installation efficiency of the shield segments.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an anti-falling shield segment suction device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a shield segment suction device that prevents falling off, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a shield segment suction device that prevents falling off, comprising a connecting base, a first suction component and a second suction component, first electric push rods are arranged on both sides of the interior of the connecting base, and the output end of the first electric push rod is connected to the frame component, the bottom end of the frame component is connected to the first suction component, the first suction component comprises a suction frame, an air suction pipe, a first suction cup, a second electric push rod, a connecting block, a piston block and a tooth groove, the outer end of the suction frame is connected to the air suction pipe, and the end of the air suction pipe is connected to the first suction cup, the second electric push rod is arranged on the outer side of the top of the suction frame, and the output end of the second electric push rod is connected to the connecting block, the bottom end of the connecting block is connected to the piston block, the bottom end of the piston block is provided with a tooth groove, and the bottom end of the suction frame is provided with A meshing gear is arranged, and the outer end of the meshing gear is connected to a bracket assembly, the bracket assembly includes an auxiliary bracket, a protective frame, a first extrusion block, a reset spring, a pressure sensor, a third electric push rod, a first supporting seat, a second extrusion block and a second supporting seat, the outer end of the auxiliary bracket is connected to the protective frame, and the outer end of the protective frame is provided with the first extrusion block, a reset spring is arranged between the protective frame and the first extrusion block, and a pressure sensor is arranged inside the protective frame, the third electric push rod is arranged inside the protective frame, and the output end of the third electric push rod is arranged with the first supporting seat, the outer end of the protective frame is provided with the second extrusion block, and the inside of the protective frame is provided with the second supporting seat, the bottom middle end of the connecting base is provided with a second adsorption assembly, and the top outer side of the connecting base is provided with a lifting assembly.

[0007] Furthermore, the frame assembly includes an extension frame, a first motor, a lead screw, a sliding seat, a slider and a rotating connecting frame, the first motor is housed inside the extension frame, and the output end of the first motor is connected to the lead screw, the outer end of the lead screw is provided with a sliding seat, and the outer end of the sliding seat is connected to the slider, and the bottom end of the slider is provided with a rotating connecting frame.

[0008] Furthermore, the extension frame is sleeve-connected with the connection base, and the extension frame is displaced inside the connection base through the first electric push rod.

[0009] Furthermore, the rotating connecting frame connects the sliding block and the suction frame, and the rotation of the lead screw drives the sliding seat and the sliding block to move inside the extension frame.

[0010] Furthermore, the suction frame is connected to the first suction cups through a suction pipe, and the first suction cups are distributed in an array at the bottom end of the suction frame.

[0011] Furthermore, the piston block is displaced inside the suction frame through the second electric push rod, and the tooth groove at the bottom end of the piston block is meshed with the meshing gear.

[0012] Furthermore, the second adsorption assembly includes a docking frame, a return spring, a third electric push rod, an electrically controlled suction seat and a second suction cup. A return spring is arranged between the docking frame and the connecting base, and the third electric push rod is placed on the inner side of the bottom of the docking frame. The output end of the third electric push rod is connected to the electrically controlled suction seat, and a second suction cup is arranged on the outer side of the bottom of the electrically controlled suction seat.

[0013] Furthermore, the docking frame is elastically connected to the docking base via a return spring, and a vertical center line of the docking frame coincides with a vertical center line of the docking base.

[0014] Furthermore, the lifting assembly includes a column, a driven gear, a ball seat, a lifting seat, a lifting ring, a second motor and a driving gear. The outer end of the column is provided with a driven gear, and the top outer end of the column is provided with a ball seat. The outer ends of the column and the ball seat are sleeved with a lifting seat, and the top outer side of the lifting seat is provided with a lifting ring. The outer end of the lifting seat is mounted with a second motor, and the output end of the second motor is connected to the driving gear.

[0015] Furthermore, the driving gear is meshed with the driven gear, and the driving gear drives the cylinder to rotate synchronously.

[0016] The present invention provides a shield segment suction device that prevents falling off, which has the following beneficial effects:

[0017] 1. After the shield segment of the present invention is lifted, the second electric push rod works and can drive the piston block to move out of the suction frame through the connecting block. During the displacement of the piston block, the air inside the first suction cup can be sucked out through the suction pipe, which enables the first suction cup to achieve adsorption with the shield segment. In addition, during the movement of the piston block, the tooth groove at the bottom of the piston block can be engaged with the meshing gear. During the rotation of the meshing gear, the auxiliary bracket can be driven to rotate, which enables the auxiliary bracket to rotate to the bottom edge of the shield segment to achieve auxiliary support for the shield segment. At this point, during the lifting and displacement of the shield segment, the first suction cup, the second suction cup and the auxiliary bracket can be multiplexed, which can greatly reduce the probability of the shield segment falling off.

[0018] 2. The suction sources of the two groups of first suction cups and the second suction cup of the present invention are independent. When a single group of suction sources leaks or fails, the other two groups of suction sources can work normally, which can reduce the probability of shield segments falling off when the suction source fails. In addition, the auxiliary bracket located at the bottom edge of the shield segment can support the shield segment as an additional guarantee. Through multiple guarantees, the working stability of the equipment can be greatly improved. In addition, because the rotation of the auxiliary bracket and the adsorption of the first suction cup are linked by the displacement of the piston block, when the shield segment is hoisted to the designated location, the piston block can be retreated to quickly release the adsorption of the first suction cup and the shield segment and the support of the auxiliary bracket to the shield segment. Through this design, the equipment can quickly release the auxiliary fixation outside the shield segment, thereby improving the installation efficiency of the shield segment. This can also avoid the problem of low installation efficiency caused by the traditional use of ropes and steel frames for auxiliary fixation, which leads to easy installation interference and difficulty in dismantling of the shield segment.

[0019] 3. A protective frame is arranged at the outer end of the auxiliary bracket of the present invention. When the auxiliary bracket assists in supporting the shield segment, the protective frame can just surround the outer end of the shield segment, which enables the protective frame to protect the outer end of the shield segment during transportation. If the protective frame collides with foreign objects during the transportation of the shield segment, the first extrusion block and the second extrusion block protruding from the outer end thereof will first come into contact with the foreign object. After the first extrusion block and the second extrusion block collide with the foreign object, they will squeeze the second return spring inside them, which can offset the force of the collision and avoid large-scale shaking causing the suction cup to be released. In addition, the first extrusion block and the second extrusion block can squeeze the pressure sensor inside the protective frame after displacement. After the pressure sensor senses the pressure, it can control the third electric push rod to work. After the third electric push rod works, it can push the first support seat and the second support seat to move out. After the first support seat and the second support seat are moved out, they can be laid on the bottom end of the shield segment. Through this design, it can effectively avoid the situation where the shield segment falls after the suction of the suction cup is accidentally released due to collision, which further improves the transportation stability of the equipment.

[0020] 4. The present invention drives the lead screw to rotate through the first motor, so that the sliding seat can drive the sliding seat and the rotating connecting frame to displace and the first adsorption component synchronously, and then drive the second suction cup to displace synchronously with the shield segment, which can enable the first adsorption component to drive the shield segment to adjust the horizontal position. In addition, the second motor drives the active gear to work, so that the driven gear can drive the column to rotate, which can drive the connecting base to rotate, and thus this enables the equipment to adjust the circumferential position. Since the operating accuracy of the crane is poor, through the above design, when there is a position error in the shield segment during the installation process, the equipment can compensate for the position error through displacement and rotation. Through this design, the installation speed of the shield segment can be accelerated, which further improves the installation efficiency of the shield segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional front view structure of an anti-falling shield segment suction device of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall three-dimensional front view structure of an anti-falling shield segment suction device of the present invention;

[0023] Figure 3 It is a schematic diagram of the overall side view structure of an anti-falling shield segment suction device of the present invention after the three-dimensional protective frame is removed;

[0024] Figure 4 This is a schematic diagram of the internal structure of a connection base of an anti-falling shield segment suction device of the present invention;

[0025] Figure 5 This is a schematic diagram of the suction frame structure of an anti-falling shield segment suction device of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of a piston block of an anti-falling shield segment suction device of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a hoisting assembly of a shield segment suction device that prevents falling off according to the present invention;

[0028] Figure 8 This is a schematic structural diagram of a second adsorption component of an anti-falling shield segment suction device of the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of a frame assembly of an anti-falling shield segment suction device of the present invention;

[0030] Fig.10 This is a bottom view structural schematic diagram of a bracket assembly of a shield segment suction device that prevents falling off according to the present invention;

[0031] Fig.11 This is a schematic diagram of the overall structure of a bracket assembly of an anti-falling shield segment suction device of the present invention;

[0032] Fig.12 The present invention is a schematic cross-sectional structural diagram of a bracket assembly of an anti-falling shield segment suction device.

[0033] In the figure: 1, connecting base; 2, first electric push rod; 3, frame assembly; 301, extension frame; 302, first motor; 303, lead screw; 304, sliding seat; 305, slider; 306, rotating connecting frame; 4, first adsorption assembly; 401, suction frame; 402, suction pipe; 403, first suction cup; 404, second electric push rod; 405, connecting block; 406, piston block; 407, tooth groove; 5, meshing gear; 6, bracket assembly; 601, auxiliary bracket; 602, protection frame; 603, first extrusion block ;604, first return spring; 605, pressure sensor; 606, third electric push rod; 607, first supporting seat; 608, second extrusion block; 609, second supporting seat; 7, second adsorption assembly; 701, docking frame; 702, second return spring; 703, fourth electric push rod; 704, electric control suction seat; 705, second suction cup; 8, lifting assembly; 801, column; 802, driven gear; 803, ball seat; 804, lifting seat; 805, lifting ring; 806, second motor; 807, driving gear. DETAILED DESCRIPTION

[0034] See also Figures 1 to 12The present invention provides a technical solution: a shield segment suction device for preventing falling off, comprising a connection base 1, a first suction component 4 and a second suction component 7, first electric push rods 2 are arranged on both sides of the connection base 1, and the output end of the first electric push rod 2 is connected to a frame component 3, the bottom end of the frame component 3 is connected to the first suction component 4, the first suction component 4 comprises a suction frame 401, an air suction pipe 402, a first suction cup 403, a second electric push rod 404, a connection block 405, a piston block 406 and tooth groove 407, the outer end of the suction frame 401 is connected to the suction pipe 402, and the end of the suction pipe 402 is connected to the first suction cup 403, the second electric push rod 404 is arranged on the outer side of the top of the suction frame 401, and the output end of the second electric push rod 404 is connected to the connecting block 405, the bottom end of the connecting block 405 is connected to the piston block 406, the bottom end of the piston block 406 is provided with a tooth groove 407, the bottom end of the suction frame 401 is provided with a meshing gear 5, and the outer end of the meshing gear 5 A bracket assembly 6 is connected, and the bracket assembly 6 includes an auxiliary bracket 601, a protective frame 602, a first extrusion block 603, a first return spring 604, a pressure sensor 605, a third electric push rod 606, a first support seat 607, a second extrusion block 608 and a second support seat 609. The outer end of the auxiliary bracket 601 is connected with the protective frame 602, and the outer end of the protective frame 602 is provided with the first extrusion block 603, a first return spring 604 is provided between the protective frame 602 and the first extrusion block 603, and the interior of the protective frame 602 is provided with a pressure sensor 605, the interior of the protective frame 602 is provided with a third electric push rod 606, and the output end of the third electric push rod 606 is provided with a first support seat 607, the outer end of the protective frame 602 is provided with a second extrusion block 608, and the interior of the protective frame 602 is provided with a second support seat 609, a second adsorption assembly 7 is provided at the bottom middle end of the connection base 1, and a hoisting assembly 8 is provided at the top outer side of the connection base 1;

[0035] See also Figures 1 to 12The frame assembly 3 includes an extension frame 301, a first motor 302, a lead screw 303, a sliding seat 304, a slider 305 and a rotating connecting frame 306. The first motor 302 is arranged inside the extension frame 301, and the output end of the first motor 302 is connected to the lead screw 303, the outer end of the lead screw 303 is provided with a sliding seat 304, and the outer end of the sliding seat 304 is connected to the slider 305, and the bottom end of the slider 305 is provided with a rotating connecting frame 306. The extension frame 301 is sleeve-connected with the connecting base 1, and the extension frame 301 is displaced inside the connecting base 1 through the first electric push rod 2. The connecting frame 306 connects the slider 305 and the suction frame 401, and the lead screw 303 rotates to drive the sliding seat 304 and the slider 305 to move inside the extension frame 301. The suction frame 401 is connected to the first suction cup 403 through the suction pipe 402, and the first suction cup 403 is distributed in an array at the bottom of the suction frame 401. The piston block 406 moves inside the suction frame 401 through the second electric push rod 404, and the tooth groove 407 at the bottom of the piston block 406 is meshed with the meshing gear 5. The second adsorption component 7 includes a docking frame 701, a second reset spring 702, a fourth electric push rod 703, and an electric control suction seat. 704 and a second suction cup 705, a second return spring 702 is arranged between the docking frame 701 and the connection base 1, and a fourth electric push rod 703 is arranged on the inner side of the bottom of the docking frame 701, the output end of the fourth electric push rod 703 is connected to the electric control suction seat 704, and a second suction cup 705 is arranged on the outer side of the bottom of the electric control suction seat 704, the docking frame 701 is elastically connected to the connection base 1 through the second return spring 702, and the vertical center line of the docking frame 701 coincides with the vertical center line of the connection base 1, the lifting assembly 8 includes a column 801, a driven gear 802, a ball seat 803, A hanging seat 804, a lifting ring 805, a second motor 806 and a driving gear 807, a driven gear 802 is arranged at the outer end of the column 801, and a ball seat 803 is arranged at the top outer end of the column 801, a hanging seat 804 is sleeved on the outer ends of the column 801 and the ball seat 803, and a lifting ring 805 is arranged on the top outer side of the hanging seat 804, a second motor 806 is arranged at the outer end of the hanging seat 804, and a driving gear 807 is connected to the output end of the second motor 806, the driving gear 807 is meshed with the driven gear 802, and the driving gear 807 drives the column 801 to rotate synchronously;

[0036] The specific operation is as follows: the staff connects the lifting ring 805 with the lifting hook of the crane, and the crane works to drive the equipment to move to the top of the shield segment that needs to be lifted. After the staff aligns the second suction cup 705 with the central axis of the shield segment, the fourth electric push rod 703 works to drive the electric control suction seat 704 to move downward, so that the second suction cup 705 can fit with the shield segment. At this time, the electric control suction seat 704 works to suck away the air between the second suction cup 705 and the shield segment, so that the second suction cup 705 can achieve adsorption of the shield segment. After the second suction cup 705 and the shield segment are adsorbed, the first electric push rod 2 works to drive the extension frame 301 to move out from the inside of the connection base 1, which enables the extension frame 301 to drive the first adsorption component 4 to After the first suction cup 403 moves to the outer edges of both ends of the shield segment, the first electric push rod 2 stops working, and the staff presses down the suction frame 401 at the same time, which enables the suction frame 401 to rotate by rotating the connecting frame 306, so that the first suction cup 403 can fit with the shield segment, and the crane works again at this time. At this time, the second suction cup 705 and the shield segment are in an adsorption state, which enables the equipment to lift the shield segment. After the shield segment is lifted, the second electric push rod 404 works and can drive the piston block 406 to move out of the suction frame 401 through the connecting block 405. During the displacement of the piston block 406, the air inside the first suction cup 403 can be extracted through the suction pipe 402, which enables the first suction cup 403 to fit with the shield segment. In addition, during the process of moving out the piston block 406, the tooth groove 407 at the bottom thereof can mesh with the meshing gear 5. During the rotation of the meshing gear 5, the auxiliary bracket 601 can be driven to rotate, so that the auxiliary bracket 601 can be rotated to the bottom edge of the shield segment. Thus, during the process of lifting and displacement of the shield segment, the multiple fixation of the first suction cup 403, the second suction cup 705 and the auxiliary bracket 601 can be achieved, which can greatly reduce the probability of the shield segment falling off. Because the suction sources of the two groups of the first suction cup 403 and the second suction cup 705 are independent, when a single group of suction sources leaks or fails, the other two groups of suction sources can work normally, which can reduce the probability of the shield segment falling off when the suction source fails. The auxiliary bracket 601 at the bottom edge of the shield segment can be used as an additional guarantee to support the shield segment. Through multiple guarantees, the working stability of the equipment can be greatly improved. In addition, because the rotation of the auxiliary bracket 601 and the adsorption of the first suction cup 403 are linked by the displacement of the piston block 406, when the shield segment is hoisted to the designated location, the piston block 406 retreats, which can quickly release the adsorption of the first suction cup 403 and the shield segment and the support of the auxiliary bracket 601 to the shield segment. Through this design, the equipment can quickly release the auxiliary fixation outside the shield segment, thereby improving the installation efficiency of the shield segment. This can also avoid the problem of low installation efficiency caused by the traditional use of ropes and steel frames for auxiliary fixation, which leads to easy installation interference and difficulty in dismantling of the shield segment.A protective frame 602 is arranged at the outer end of the auxiliary bracket 601. When the auxiliary bracket 601 performs auxiliary support on the shield segment, the protective frame 602 can just surround the outer end of the shield segment, so that the protective frame 602 can realize protection during the transportation of the outer end of the shield segment. If the protective frame 602 collides with foreign objects during the transportation of the shield segment, the first extrusion block 603 and the second extrusion block 608 protruding from the outer end thereof will first come into contact with the foreign objects. After the first extrusion block 603 and the second extrusion block 608 collide with the foreign objects, the second return spring 702 inside them will be squeezed, which can offset the collision force and avoid large-scale shaking resulting in The suction cup is released. In addition, the first extrusion block 603 and the second extrusion block 608 can squeeze the pressure sensor 605 inside the protection frame 602 after displacement. After the pressure sensor 605 senses the pressure, it can control the third electric push rod 606 to work. After the third electric push rod 606 works, it can push the first support seat 607 and the second support seat 609 to move out. After the first support seat 607 and the second support seat 609 are moved out, they can be laid on the bottom of the shield segment. Through this design, it can effectively avoid the situation where the suction cup is accidentally released due to impact, causing the shield segment to fall. This further improves the transportation stability of the equipment and the shield segment is installed during installation. If the hoisting position has a slight deviation due to the operation of the crane, the first motor 302 drives the lead screw 303 to rotate, so that the sliding seat 304 can drive the slider 305 and the rotating connecting frame 306 to move, and the rotating connecting frame 306 can drive the first adsorption component 4 to move synchronously during the displacement. The second return spring 702 is provided at the connection between the docking frame 701 and the connecting base 1. The docking frame 701 squeezes the second return spring 702 to move inside the connecting base 1, and the second suction cup 705 can also move synchronously with the shield segment. Through this design, the first adsorption component 4 can drive the shield segment to move horizontally. In addition, the second motor 806 drives the driving gear 807 to work, which can make the driven gear 802 drive the column 801 to rotate. The setting of the ball seat 803 can reduce the sliding friction between the column 801 and the hoisting seat 804. The rotation of the column 801 can drive the connecting base 1 to rotate, so that the device can adjust the circumferential position. Because the operating accuracy of the crane is poor, through the above design, when there is a position error in the installation process of the shield segment, the device can compensate for the position error through displacement and rotation. Through this design, the installation speed of the shield segment can be accelerated, which further improves the installation efficiency of the shield segment.

[0037] In summary, when using the anti-falling shield segment suction device, the staff first connects the lifting ring 805 with the lifting hook of the crane, and the crane works to drive the equipment to move to the top of the shield segment to be hoisted. After the staff aligns the second suction cup 705 with the central axis of the shield segment, the fourth electric push rod 703 works to drive the electric control suction seat 704 to move downward, so that the second suction cup 705 can fit the shield segment. At this time, the electric control suction seat 704 works to suck away the air between the second suction cup 705 and the shield segment, so that the second suction cup 705 can achieve the absorption of the shield segment;

[0038] Then, after the second suction cup 705 and the shield segment are adsorbed, the first electric push rod 2 works and can drive the extension frame 301 to move out from the inside of the connection base 1, so that the extension frame 301 can drive the first adsorption assembly 4 to move outward. After the first suction cup 403 moves to the outer edges of both ends of the shield segment, the first electric push rod 2 stops working, and the staff presses down the suction frame 401 at the same time, so that the suction frame 401 can rotate by rotating the connection frame 306, so that the first suction cup 403 can fit with the shield segment, and the crane works again at this time. At this time, the second suction cup 705 and the shield segment are in an adsorption state, which enables the equipment to lift the shield segment;

[0039] After the shield segment is lifted, the second electric push rod 404 works and can drive the piston block 406 to move out of the suction frame 401 through the connecting block 405. During the displacement of the piston block 406, the air inside the first suction cup 403 can be sucked out through the suction pipe 402, so that the first suction cup 403 can be adsorbed on the shield segment. In addition, during the removal of the piston block 406, the tooth groove 407 at the bottom of the piston block 406 can be meshed with the meshing gear 5. During the rotation of the meshing gear 5, the auxiliary bracket 601 can be driven to rotate, so that the auxiliary bracket 601 can be rotated to the bottom edge of the shield segment. At this point, during the lifting and displacement of the shield segment, the first suction cup 403, the second suction cup 705 and the auxiliary bracket 601 can be multiplexed, which can greatly reduce the probability of the shield segment falling off.

[0040] Since the suction sources of the two groups of first suction cups 403 and second suction cups 705 are independent, when a single group of suction sources leaks or fails, the other two groups of suction sources can work normally, which can reduce the probability of the shield segment falling off when the suction source fails. In addition, the auxiliary bracket 601 located at the bottom edge of the shield segment can be used as an additional guarantee to support the shield segment. Through multiple guarantees, the working stability of the equipment can be greatly improved. In addition, since the rotation of the auxiliary bracket 601 and the adsorption of the first suction cup 403 are linked by the displacement of the piston block 406, when the shield segment is hoisted to the designated location, the piston block 406 retreats to quickly release the adsorption of the first suction cup 403 and the shield segment and the support of the auxiliary bracket 601 to the shield segment. Through this design, the equipment can quickly release the auxiliary fixation outside the shield segment, thereby improving the installation efficiency of the shield segment. This can also avoid the problem of low installation efficiency caused by the traditional use of ropes and steel frames for auxiliary fixation, which leads to easy installation interference and difficulty in dismantling of the shield segment;

[0041] Then, in the process of the auxiliary bracket 601 providing auxiliary support to the shield segment, the protection frame 602 can just surround the outer end of the shield segment, so that the protection frame 602 can protect the outer end of the shield segment during transportation. If the protection frame 602 collides with foreign objects during the transportation of the shield segment, the first extrusion block 603 and the second extrusion block 608 protruding from the outer end will first come into contact with the foreign objects. After the first extrusion block 603 and the second extrusion block 608 collide with the foreign objects, they will squeeze the second return spring 702 inside them, which can offset the collision force and avoid large-scale shaking that causes the suction of the suction cup. In addition, the first extrusion block 603 and the second extrusion block 608 can squeeze the pressure sensor 605 inside the protection frame 602 after displacement. After the pressure sensor 605 senses the pressure, it can control the third electric push rod 606 to work. After the third electric push rod 606 works, it can push the first support seat 607 and the second support seat 609 to move out. After the first support seat 607 and the second support seat 609 are moved out, they can be laid on the bottom end of the shield segment. Through this design, it can effectively avoid the situation where the shield segment falls after the suction cup is accidentally released due to impact, which further improves the transportation stability of the equipment;

[0042] Finally, during the installation of the shield segment, if the lifting position has a slight deviation due to the operation of the crane, the first motor 302 drives the lead screw 303 to rotate, which can make the sliding seat 304 drive the slider 305 and the rotating connecting frame 306 to move. During the displacement, the rotating connecting frame 306 can drive the first adsorption component 4 to move synchronously. The second return spring 702 is provided at the connection between the docking frame 701 and the connecting base 1. The docking frame 701 squeezes the second return spring 702 to move inside the connecting base 1, and the second suction cup 705 can also move synchronously with the shield segment. Through this design, the first adsorption component 4 can drive the shield segment. The horizontal position of the piece can be adjusted. In addition, the second motor 806 drives the active gear 807 to work, which can make the driven gear 802 drive the column 801 to rotate. The setting of the ball seat 803 can reduce the sliding friction between the column 801 and the lifting seat 804. The rotation of the column 801 can drive the connecting base 1 to rotate, so that the equipment can adjust the circumferential position. Because the operating accuracy of the crane is poor, through the above design, when there is a position error in the installation process of the shield segment, the equipment can compensate for the position error through displacement and rotation. Through this design, the installation speed of the shield segment can be accelerated, which makes the installation efficiency of the shield segment can be further improved.

[0043] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A shield segment suction device that prevents falling off, characterized in that: The invention comprises a connection base (1), a first adsorption component (4) and a second adsorption component (7), wherein first electric push rods (2) are arranged on both sides of the connection base (1), and the output end of the first electric push rod (2) is connected to a frame component (3), the bottom end of the frame component (3) is connected to the first adsorption component (4), the first adsorption component (4) comprises a suction frame (401), a suction pipe (402), a first suction cup (403), a second electric push rod (404), a connection block (405), a piston block (406) and a tooth groove (407), the outer end of the suction frame (401) is connected to the suction pipe (402), and the end of the suction pipe (402) is connected to the first suction cup (403), the top of the suction frame (401) A second electric push rod (404) is arranged on the outside, and the output end of the second electric push rod (404) is connected to a connection block (405), the bottom end of the connection block (405) is connected to a piston block (406), and the bottom end of the piston block (406) is provided with a tooth groove (407), the bottom end of the suction frame (401) is provided with a meshing gear (5), and the outer end of the meshing gear (5) is connected to a bracket assembly (6), and the bracket assembly (6) includes an auxiliary bracket (601), a protective frame (602), a first extrusion block (603), a first return spring (604), a pressure sensor (605), a third electric push rod (606), a first support seat (607), a second extrusion block (608) and a second support seat (609), The outer end of the auxiliary bracket (601) is connected to a protective frame (602), and a first extrusion block (603) is arranged on the outer end of the protective frame (602), a first return spring (604) is arranged between the protective frame (602) and the first extrusion block (603), and a pressure sensor (605) is arranged inside the protective frame (602), a third electric push rod (606) is arranged inside the protective frame (602), and a first supporting seat (607) is arranged at the output end of the third electric push rod (606), a second extrusion block (608) is arranged on the outer end of the protective frame (602), and a second supporting seat (609) is arranged inside the protective frame (602), and when the piston block (406) is moved out, the gear at the bottom thereof The groove (407) meshes with the meshing gear (5), and the meshing gear (5) drives the auxiliary bracket (601) to rotate during its rotation. After the first extrusion block (603) and the second extrusion block (608) collide with the external object, the second return spring (702) inside is squeezed to offset the collision force. At the same time, the first extrusion block (603) and the second extrusion block (608) are displaced to squeeze the pressure sensor (605). The pressure sensor (605) controls the third electric push rod (606) to work and push the first support seat (607) and the second support seat (609) to move out. A second adsorption component (7) is provided at the middle end of the bottom of the connection base (1), and a lifting component (8) is arranged on the outer side of the top of the connection base (1).

2. The shield segment suction device for preventing falling off according to claim 1 is characterized in that: The frame assembly (3) comprises an extension frame (301), a first motor (302), a lead screw (303), a sliding seat (304), a slider (305) and a rotation connection frame (306); the first motor (302) is arranged inside the extension frame (301), and the output end of the first motor (302) is connected to the lead screw (303); the outer end of the lead screw (303) is provided with a sliding seat (304), and the outer end of the sliding seat (304) is connected to the slider (305); the bottom end of the slider (305) is provided with a rotation connection frame (306).

3. The shield segment suction device for preventing falling off according to claim 2 is characterized in that: The extension frame (301) is sleeve-connected with the connection base (1), and the extension frame (301) is displaced inside the connection base (1) through the first electric push rod (2).

4. The shield segment suction device for preventing falling off according to claim 2 is characterized in that: The rotating connecting frame (306) connects the sliding block (305) and the suction frame (401), and the lead screw (303) rotates to drive the sliding seat (304) and the sliding block (305) to move inside the extension frame (301).

5. The shield segment suction device for preventing falling off according to claim 1 is characterized in that: The suction frame (401) is connected to the first suction cups (403) via a suction pipe (402), and the first suction cups (403) are distributed in an array at the bottom end of the suction frame (401).

6. The shield segment suction device for preventing falling off according to claim 1 is characterized in that: The piston block (406) is displaced inside the suction frame (401) via the second electric push rod (404), and the tooth groove (407) at the bottom end of the piston block (406) is meshed with the meshing gear (5).

7. The shield segment suction device for preventing falling off according to claim 1 is characterized in that: The second adsorption component (7) includes a docking frame (701), a second reset spring (702), a fourth electric push rod (703), an electrically controlled suction seat (704) and a second suction cup (705), wherein a second reset spring (702) is arranged between the docking frame (701) and the connection base (1), and a fourth electric push rod (703) is arranged on the inner side of the bottom of the docking frame (701), an output end of the fourth electric push rod (703) is connected to the electrically controlled suction seat (704), and a second suction cup (705) is arranged on the outer side of the bottom of the electrically controlled suction seat (704).

8. The shield segment suction device for preventing falling off according to claim 7 is characterized in that: The docking frame (701) is elastically connected to the docking base (1) via a second return spring (702), and the vertical center line of the docking frame (701) coincides with the vertical center line of the docking base (1).

9. The shield segment suction device for preventing falling off according to claim 1 is characterized in that: The hanging assembly (8) comprises a column (801), a driven gear (802), a ball seat (803), a hanging seat (804), a lifting ring (805), a second motor (806) and a driving gear (807); the outer end of the column (801) is provided with a driven gear (802), and the top outer end of the column (801) is provided with a ball seat (803); the outer ends of the column (801) and the ball seat (803) are sleeved with a hanging seat (804), and the top outer side of the hanging seat (804) is provided with a lifting ring (805); the outer end of the hanging seat (804) is provided with a second motor (806), and the output end of the second motor (806) is connected to the driving gear (807).

10. The shield segment suction device for preventing falling off according to claim 9, characterized in that: The driving gear (807) is meshed with the driven gear (802), and the driving gear (807) drives the column (801) to rotate synchronously.

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