A shield segment easy demoulding device

Abstract

This utility model relates to the field of shield tunnel segment technology and discloses an easy demolding device for shield tunnel segments, including a housing. Two cover plates are symmetrically connected to the top of the housing via hinges. A support frame is fixedly connected to the bottom of the housing, and several mounting holes are evenly distributed on the bottom of the support frame. Multiple telescopic rods are evenly distributed and fixedly connected to the inner wall of each side of the housing. A first side plate is fixedly connected to one end of the telescopic rods located on the front and rear inner walls of the housing, and a second side plate is fixedly connected to one end of the telescopic rods located on the left and right inner walls of the housing. This utility model prevents shield tunnel segments from adhering during demolding by moving the first and second side plates outwards. It also includes an ejection assembly to eject the solidified shield tunnel segments, allowing them to detach from the mold for subsequent hoisting.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel segment technology, and more specifically to a shield tunnel segment easy demolding device. Background Technology

[0002] In tunnel engineering and subway construction, the shield tunneling method is widely used for the excavation and construction of underground spaces. During its construction, shield segments, as an important structural component, are manufactured through casting using molds.

[0003] A search revealed Chinese patent CN220280006U, which discloses a tunnel boring machine segment mold, including a mold body and a collision frame. The upper side of the mold body has an opening to facilitate the replacement of the collision frame and ensure the normal operation of the mold as much as possible. However, the following defects still exist: during the demolding process of the tunnel segment, the segment adheres tightly to the inner wall of the mold. This not only increases the difficulty of demolding but may also cause scratches on the surface of the segment, affecting its quality and subsequent use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a shield tunnel segment easy demolding device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a shield tunnel segment easy demolding device, including a shell, the top of the shell is symmetrically connected to two cover plates by hinges, the bottom of the shell is fixedly connected to a support frame, the bottom of the support frame is evenly provided with a number of mounting holes, each side inner wall of the shell is evenly distributed and fixedly connected to a number of telescopic rods, the telescopic rods located on the front and rear inner walls of the shell are fixedly connected to a first side plate at one end, the telescopic rods located on the left and right inner walls of the shell are fixedly connected to a second side plate at one end, the bottom outer wall of the shell is provided with a driving assembly for pushing the two first side plates and the two second side plates to move simultaneously, and the bottom outer wall of the shell is also provided with a push-out assembly for pushing out the shield tunnel segment.

[0006] As a further embodiment of this utility model, the driving assembly includes several grooves evenly formed on the outer wall of the bottom of the housing, and each groove penetrates the bottom surface of the housing. Each groove is slidably connected to a slide, and the four slides are located on the side adjacent to the two first side plates and the two second side plates. The top of each slide is symmetrically connected to two sliders via bearings. The first side plate and the second side plate are fixedly connected to two fixing blocks on the side of the slide. Each fixing block has a slot that slopes downward from top to bottom inside. Each slider is inserted into the corresponding slot and slidably connected to the fixing block through the slot. A power assembly for pulling multiple slides to move simultaneously is provided at the bottom of the housing.

[0007] As a further embodiment of this utility model, the power assembly includes a groove formed on the outer wall of the bottom of the housing, and the groove is located at the center of the housing. A connecting frame is provided below the housing, and the connecting frame is fixedly connected to the bottom ends of the plurality of slides. A second cylinder is provided in the groove, and the piston end of the second cylinder is fixedly connected to the connecting frame.

[0008] As a further embodiment of this utility model, the ejection assembly includes two symmetrically formed grooves on the bottom outer wall of the housing, with top blocks slidably connected in the grooves, and fixed brackets fixedly connected to the bottom of the two top blocks. A mounting bracket is fixedly connected to the bottom outer wall of the housing, and a first cylinder is mounted on the bottom of the mounting bracket. The piston end of the first cylinder is fixedly connected to the fixed bracket.

[0009] As a further embodiment of this utility model, a vibration motor is fixedly connected to both the front and rear outer walls of the housing, and the vibration motor is located in the middle position.

[0010] As a further embodiment of this utility model, the two second side plates, the two first side plates, and the bottom of the shell form a closed state.

[0011] As a further embodiment of this utility model, sealing gaskets are fixedly connected to the contact points between the two second side plates and the two first side plates and the housing.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model prevents the shield tunnel segments from adhering during the demolding process by moving the first side plate and the second side plate outward, thus ensuring that the shield tunnel segments can be smoothly removed.

[0013] 2. This utility model uses an ejection assembly to eject the solidified shield tunnel segments, allowing them to detach from the mold for subsequent hoisting, and ensuring a smooth detachment from the mold.

[0014] 3. This utility model incorporates a vibration motor, which generates vibration that helps eliminate air bubbles inside the tunnel lining segments, thereby improving the density and quality of the segments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the cover plate of this utility model.

[0017] Figure 3 This utility model Figure 1 A partial cross-sectional structural diagram.

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part A.

[0019] Figure 5 This utility model Figure 1 A partially enlarged structural diagram.

[0020] Figure 6 This utility model Figure 1 A schematic diagram of the shell cross-section structure.

[0021] The attached figures are labeled as follows: 1. Cover plate; 2. Housing; 3. Support frame; 4. Vibration motor; 5. First side plate; 6. Telescopic rod; 7. Second side plate; 8. Slide; 9. Connecting frame; 10. Mounting frame; 11. First cylinder; 12. Fixing frame; 13. Top block; 14. Slide groove; 15. Groove; 16. Second cylinder; 17. Slider; 18. Slot opening; 19. Fixing block; 20. Groove body. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1-6This utility model provides an easy demolding device for tunnel lining segments, including a housing 2 and two symmetrically arranged cover plates 1 connected to the top of the housing 2 by hinges. A support frame 3 is welded to the bottom of the housing 2, and each support frame 3 has mounting holes at its bottom. Multiple telescopic rods 6 are evenly distributed and welded to the inner walls of the four sides of the housing 2. The other ends of the multiple telescopic rods 6 on the front and rear sides are respectively fixed to first side plates 5 by bolts, and the other ends of the multiple telescopic rods 6 on the left and right sides are respectively fixed to second side plates 7 by bolts. The two first side plates 5 and the two second side plates 7 are symmetrically arranged, and the two second side plates 7 and the two first side plates 5 form a closed state with the bottom of the housing 2. The bottom outer wall of the housing 2 is provided with... There is a drive assembly that pushes the two first side plates 5 and the two second side plates 7 outwards simultaneously. The bottom outer wall of the shell 2 is provided with an ejection assembly that pushes out the shield tunnel segment. When demolding is required, the two cover plates 1 are opened first, and then the drive assembly is started. The drive assembly will drive the two first side plates 5 and the two second side plates 7 outwards simultaneously, so that the two first side plates 5 and the two second side plates 7 are disengaged from the shield tunnel segment. Then the ejection assembly is started, and the ejection assembly will apply an upward force to smoothly push the shield tunnel segment, which has lost its lateral constraint, out of the shell 2. Then a crane is used to lift the shield tunnel segment away, thereby completing the demolding operation. The whole process is simple to operate and can effectively improve the demolding efficiency of the shield tunnel segment.

[0024] In this embodiment, the driving assembly includes multiple slots 20 symmetrically formed on the bottom outer wall of the housing 2 and penetrating the housing 2. Sliders 8 are slidably connected within the slots 20, and the multiple sliders 8 are respectively located on one side of the two first side plates 5 and the two second side plates 7. Sliders 17 are rotatably connected to both sides of each slider 8 via bearings. Two symmetrically arranged fixing blocks 19 are bolted to one side of each of the two first side plates 5 and the two second side plates 7. One side of each fixing block 19 has a slot 18 that slopes downwards and slides with the slider 17. The bottom outer wall of the housing 2 is provided with a power assembly for simultaneously moving the multiple sliders 8. The power assembly includes a groove 1 located in the middle of the bottom outer wall of the housing 2. 5. Connecting frames 9 are welded to the bottom of multiple slides 8. A second cylinder 16 with a piston end is fixed in the groove 15 by bolts to push the connecting frame 9 to move up and down. When the second cylinder 16 is started, the piston end of the second cylinder 16 moves and pulls the connecting frame 9 to move upward, thereby driving multiple slides 8 to slide upward simultaneously in the groove 20. During the sliding of the slides 8, the slider 17 will slide from top to bottom in the slot 18 on one side of the fixed block 19. Since the slot 18 is set at an inclination, when the slider 17 slides in the slot 18, it will push the fixed block 19 to move. Multiple fixed blocks 19 simultaneously drive the two first side plates 5 and the two second side plates 7 to move simultaneously, preparing for the subsequent demolding of the shield tunnel segments.

[0025] In this embodiment, the ejection assembly includes two sliding grooves 14 formed on the bottom outer wall of the housing 2 and penetrating the housing 2, and the two sliding grooves 14 are symmetrically arranged. A top block 13 is slidably connected in the sliding groove 14. A fixing frame 12 is welded to the bottom of the two top blocks 13. A mounting frame 10 is welded to the bottom outer wall of the housing 2. A first cylinder 11 with a piston end is fixed to the bottom of the mounting frame 10 by bolts to push the fixing frame 12 to move up and down. When the first cylinder 11 is started, its piston end will extend upward. The upward movement of the piston end of the first cylinder 11 will push the fixing frame 12 to move upward, thereby causing the two top blocks 13 to slide upward simultaneously in the sliding groove 14. During the upward sliding of the top blocks 13, the shield tunnel segment will be ejected from the mold, which is convenient for subsequent hoisting.

[0026] It should be noted that the first cylinder 11 and the second cylinder 16 used in this application are both prior art. Those skilled in the art can set them according to actual needs, and they will not be described in detail here.

[0027] In this embodiment, vibration motors 4 are fixed to both outer walls of the housing 2 by bolts, and the vibration motors 4 are located in the middle position. When the vibration motors 4 are started, they will generate vibration, which will be evenly transmitted to the entire housing 2, thereby causing the mold inside the housing 2 to vibrate. This vibration helps the shield tunnel segments to be formed better in the mold and eliminate internal air bubbles.

[0028] It should be noted that the vibration motor 4 used in this application is prior art, model: vb15 / 2510. A vibration motor is a special motor that converts electrical energy into mechanical vibration energy. Its core principle is to generate centrifugal force by rotating the adjustable eccentric blocks at both ends of the rotor shaft at high speed, thereby forming an excitation force. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0029] In this embodiment, sealing gaskets are bonded to the contact points of the two second side plates 7 and the two first side plates 5 with the housing 2. When the two second side plates 7, the two first side plates 5 and the housing 2 are assembled, the sealing gaskets bonded to the contact points will play a good sealing role. The sealing gaskets can fill the tiny gaps between the contact surfaces of the side plates and the housing, effectively preventing leakage of the unformed shield tunnel segments on the inner wall of the housing 2.

[0030] The use of this utility model involves the following steps: S1: When demolding is required, first open both cover plates 1; S2: Then start the second cylinder 16. The piston end of the second cylinder 16 moves and pulls the connecting frame 9 to move upward, thereby driving multiple slides 8 to slide upward simultaneously in the groove 20. During the sliding of the slides 8, the slider 17 will slide from top to bottom in the slot 18 on one side of the fixed block 19. Since the slot 18 is set at an inclination, when the slider 17 slides in the slot 18, it will push the fixed block 19 to move outward. Multiple fixed blocks 19 simultaneously drive the two first side plates 5 and the two second side plates 7 to move outward simultaneously, so that the two first side plates 5 and the two second side plates 7 are disengaged from the shield tunnel segments. S3: Then start the first cylinder 11 again. Its piston end will extend upward. The upward movement of the piston end of the first cylinder 11 will push the fixed frame 12 to move upward, thereby driving the two top blocks 13 to slide upward in the slide groove 14 at the same time. During the upward sliding process of the top blocks 13, the shield tunnel segment will be pushed out of the mold. S4: Then, a crane is used to lift the tunnel segment away, thus completing the demolding operation.

[0031] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A shield tunnel segment easy demolding device, comprising a housing (2), wherein the top of the housing (2) is symmetrically connected to two cover plates (1) via hinges, and a support frame (3) is fixedly connected to the bottom of the housing (2), wherein a plurality of mounting holes are evenly provided on the bottom of the support frame (3), characterized in that: Multiple telescopic rods (6) are evenly distributed and fixedly connected to the inner wall of each side of the shell (2). The telescopic rods (6) located on the inner walls of the front and rear sides of the shell (2) are fixedly connected to one end of the corresponding side plate (5). The telescopic rods (6) located on the inner walls of the left and right sides of the shell (2) are fixedly connected to one end of the corresponding side plate (7). The bottom outer wall of the shell (2) is provided with a driving assembly that pushes the two first side plates (5) and the two second side plates (7) to move simultaneously. The bottom outer wall of the shell (2) is also provided with a push-out assembly that pushes out the shield tunnel segments.

2. The shield tunnel segment easy demolding device according to claim 1, characterized in that: The drive assembly includes several slots (20) evenly opened on the bottom outer wall of the housing (2), and each slot (20) penetrates the bottom surface of the housing (2). Each slot (20) is slidably connected to a slide (8), and the four slides (8) are located on the side adjacent to the two first side plates (5) and the two second side plates (7). The top of each slide (8) is symmetrically connected to two sliders (17) through bearings. The first side plate (5) and the second side plate (7) are fixedly connected to two fixing blocks (19) on one side of the slide (8). Each fixing block (19) has a slot (18) that slopes downward from top to bottom. Each slider (17) is inserted into the corresponding slot (18) and slidably connected to the fixing block (19) through the slot (18). The housing (2) is provided with a power assembly for pulling multiple slides (8) to move simultaneously.

3. The shield tunnel segment easy demolding device according to claim 2, characterized in that: The power assembly includes a groove (15) formed on the bottom outer wall of the housing (2), and the groove (15) is located at the center of the housing (2). A connecting frame (9) is provided below the housing (2), and the connecting frame (9) is fixedly connected to the bottom end of a plurality of slides (8). A second cylinder (16) is provided in the groove (15), and the piston end of the second cylinder (16) is fixedly connected to the connecting frame (9).

4. The shield tunnel segment easy demolding device according to claim 1, characterized in that: The ejection assembly includes two symmetrically opened grooves (14) on the bottom outer wall of the housing (2). A top block (13) is slidably connected in the groove (14). A fixing frame (12) is fixedly connected to the bottom of the two top blocks (13). A mounting frame (10) is fixedly connected to the bottom outer wall of the housing (2). A first cylinder (11) is installed at the bottom of the mounting frame (10). The piston end of the first cylinder (11) is fixedly connected to the fixing frame (12).

5. The shield tunnel segment easy demolding device according to claim 1, characterized in that: Vibration motors (4) are fixedly connected to the outer walls of the front and rear sides of the housing (2), and the vibration motors (4) are located in the middle position.

6. The shield tunnel segment easy demolding device according to claim 1, characterized in that: The two second side plates (7) and the two first side plates (5) form a closed state with the bottom of the shell (2).

7. The shield tunnel segment easy demolding device according to claim 6, characterized in that: Sealing gaskets are fixedly connected to the contact points between the two second side plates (7) and the two first side plates (5) and the housing (2).

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