Tunnel lining trolley

Abstract

The utility model belongs to tunnel construction technical field discloses a kind of tunnel lining trolley, multiple main sealing units are provided and each main sealing unit can be detachably blocked in any pouring hole, the pouring hole is blocked by main sealing unit, pouring material outside trolley body can be avoided to enter trolley body inside through the pouring hole, to avoid the risk of trolley body structure damage caused by pouring material invasion. Auxiliary sealing unit extends along the length direction of mounting groove, and under the driving action of driving assembly, it can slide along the length direction of mounting groove, when gap is generated between main sealing unit and its corresponding blocked pouring hole due to external vibration or its own structure abrasion, auxiliary sealing unit can be slid to cover the gap between main sealing unit and pouring hole by the driving action of driving assembly, improve the sealing reliability at pouring hole, improve the overall sealing effect of pouring hole, so as to guarantee the lining construction quality of tunnel inner wall.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a tunnel lining trolley. Background Technology

[0002] Tunnel lining trolleys are indispensable specialized equipment in the secondary lining process of tunnel construction. They provide a stable working platform for concrete pouring, ensuring the smooth construction of the tunnel's permanent support system. The outer surface of the tunnel lining trolley has multiple rows of pouring holes arranged from bottom to top. Pouring operations are carried out sequentially from bottom to top. When the concrete pouring height exceeds the corresponding height of a certain row of pouring holes, a hole sealing device is needed to seal that row of holes to ensure the smooth progress of subsequent pouring operations.

[0003] However, in actual use of the aforementioned tunnel lining trolley, the hole sealing device will wear down after long-term use, reducing its actual sealing effect on the pouring hole. This allows the concrete poured into the tunnel wall to enter the trolley through the pouring hole, thereby damaging the internal equipment of the trolley and affecting the construction quality of the secondary tunnel lining.

[0004] Therefore, there is an urgent need to develop a tunnel lining trolley to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tunnel lining trolley that can improve the overall sealing effect of the pouring hole, enhance the sealing reliability, and ensure the lining construction quality of the tunnel inner wall.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model proposes a tunnel lining trolley for lining construction of tunnel inner walls, comprising: a trolley body, wherein the trolley body is provided with multiple mounting slots spaced apart along its circumference, the multiple mounting slots extending along the length direction of the trolley body, and the bottom of the mounting slots being provided with multiple pouring holes spaced apart along its length direction; a sealing mechanism, including a main sealing unit, an auxiliary sealing unit, and a drive assembly, wherein multiple main sealing units are provided, and each main sealing unit can be detachably sealed in any pouring hole; the auxiliary sealing units correspond one-to-one with the mounting slots, each auxiliary sealing unit extending along the length direction of the mounting slot, and the first end of each auxiliary sealing unit slidingly engaging with the mounting slot along its length direction, and the second end being drively connected to the drive assembly; the drive assembly is configured to drive each auxiliary sealing unit to slide along the length direction of the mounting slot, so that the auxiliary sealing units can cover the pouring holes or cover the gap between the main sealing units and the pouring holes.

[0008] Specifically, the drive assembly includes an adjusting support, a screw, a mounting base, and a drive component. Each adjusting support, screw, and drive component corresponds to an auxiliary sealing unit. The adjusting support is threaded to the screw. Each screw extends along the length of the mounting groove, with one end rotatably mounted on the trolley body and the other end rotatably mounted on the mounting base. The second end of the auxiliary sealing unit is fixedly connected to the adjusting support. The drive component is used to drive the screw to rotate, thereby causing the adjusting support to move along the length of the mounting groove.

[0009] More specifically, the adjusting support includes a support body and a mounting part that are fixedly connected, the second end of the auxiliary sealing unit is fixedly connected to the support body, and the mounting part is threadedly connected to the screw.

[0010] For example, a roller is provided rotatably on the underside of the mounting base.

[0011] Specifically, the trolley body has multiple guide grooves spaced apart on the side away from the screw. These guide grooves are connected to multiple mounting grooves in a one-to-one correspondence. The auxiliary sealing unit can be inserted into the guide groove through the mounting groove to export the casting material in the mounting groove.

[0012] Optionally, the trolley body has multiple guide grooves spaced apart on the side near the screw. The multiple guide grooves are connected to multiple mounting grooves one by one. The auxiliary sealing unit abuts against the groove wall of the guide groove, and the auxiliary sealing unit can slide into the mounting groove through the guide groove.

[0013] Optionally, the driving component is a stepper motor.

[0014] Furthermore, along the direction in which the pouring material flows from the trolley body to the tunnel wall, the diameter of each pouring hole gradually increases.

[0015] The beneficial effects of this utility model are:

[0016] This invention proposes a tunnel lining trolley with multiple main sealing units, each of which can be detachably sealed into any pouring hole. When the height of the material poured into the tunnel wall by the tunnel lining trolley exceeds the corresponding height of a certain pouring hole, the main sealing unit seals the hole, preventing external pouring material from entering the trolley body through the hole. This avoids the risk of structural damage to the trolley body caused by material intrusion. The main sealing units ensure the smooth progress of tunnel wall lining construction. The detachable installation of the main sealing units in the pouring holes reduces the difficulty of disassembly and assembly. The auxiliary sealing unit extends along the length of the mounting groove and can slide along the same length under the drive of the drive assembly. When the main sealing unit experiences a gap between itself and the corresponding sealing hole due to external vibration or wear, the auxiliary sealing unit can slide to cover the gap between the main sealing unit and the casting hole, further improving the sealing reliability at the casting hole. Compared to existing technologies that only have a main sealing unit, this improves the overall sealing effect of the casting hole, thus ensuring the quality of the tunnel lining construction. Furthermore, multiple casting holes are spaced along the length of the mounting groove, improving casting efficiency and ensuring the compactness of the tunnel lining structure. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the tunnel lining trolley described in this embodiment of the present invention from a first-view perspective;

[0018] Figure 2 This is a structural schematic diagram of the tunnel lining trolley described in an embodiment of the present invention from a second perspective;

[0019] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a structural schematic diagram of the tunnel lining trolley described in this embodiment of the present invention from a third-person perspective.

[0021] In the picture:

[0022] 1. Cart body; 11. Mounting slot; 111. Pouring hole; 12. Material guide chute; 2. Sealing mechanism; 21. Auxiliary sealing unit; 22. Drive assembly; 221. Adjustable support; 2211. Support body; 2212. Mounting part; 222. Screw; 223. Mounting base; 2231. Roller; 224. Drive component. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The outer surface of the tunnel lining trolley has multiple pouring holes arranged from bottom to top. Pouring operations are carried out sequentially from bottom to top. When the concrete pouring height exceeds the corresponding height of a certain pouring hole, a hole sealing device is needed to seal the hole to ensure the smooth progress of subsequent pouring operations. However, with long-term operation of the tunnel lining trolley, the hole sealing device is prone to wear and tear, creating gaps between itself and the pouring holes. This reduces the actual sealing effect, allowing concrete to enter the trolley through these gaps when pouring concrete into the tunnel wall laterally. This damages the internal equipment of the trolley and affects the construction quality of the secondary tunnel lining.

[0028] like Figures 1-4As shown, this embodiment provides a tunnel lining trolley for lining construction of the inner wall of a tunnel. It includes a trolley body 1 and a sealing mechanism 2. The trolley body 1 has multiple mounting slots 11 spaced along its circumference, each mounting slot 11 extending along its length, and the bottom of each mounting slot 11 has multiple pouring holes 111 spaced along its length. The sealing mechanism 2 includes a main sealing unit, an auxiliary sealing unit 21, and a drive assembly 22. Multiple main sealing units are provided, and each main sealing unit can be detachably sealed. In any one of the pouring holes 111, an auxiliary sealing unit 21 corresponds to a mounting groove 11. Each auxiliary sealing unit 21 extends along the length direction of the mounting groove 11, and the first end of each auxiliary sealing unit 21 along its own length direction is slidably engaged with the mounting groove 11, while the second end is drively connected to the drive assembly 22. The drive assembly 22 is configured to drive each auxiliary sealing unit 21 to slide along the length direction of the mounting groove 11, so that the auxiliary sealing unit 21 can cover the pouring hole 111 or cover the gap between the main sealing unit and the pouring hole 111. It can be understood that in this embodiment, the length direction of the trolley body 1 is consistent with the length direction of the tunnel. A pouring mechanism is provided inside the trolley body 1, which is used to pour the pouring material through the pouring hole 111 onto the inner wall of the tunnel.

[0029] In this embodiment, multiple main sealing units are provided, and each main sealing unit can be detachably sealed into any pouring hole 111. When the height of the material poured by the tunnel lining trolley into the tunnel inner wall exceeds the corresponding height of a certain pouring hole 111, the main sealing unit seals the pouring hole 111, thus preventing the pouring material outside the trolley body 1 from entering the interior of the trolley body 1 through the pouring hole 111. This avoids the risk of structural damage to the trolley body 1 caused by the intrusion of the pouring material. The main sealing unit ensures the smooth progress of the tunnel inner wall lining construction. The main sealing unit is detachably installed in the pouring hole 111, reducing the difficulty of disassembling and assembling the main sealing unit. The auxiliary sealing unit 21 extends along the length of the mounting groove 11 and can slide along the length of the mounting groove 11 under the driving action of the driving component 22. When the main sealing unit has a gap between itself and the corresponding sealing hole 111 due to external vibration or wear of its own structure, the auxiliary sealing unit 21 can slide to cover the gap between the main sealing unit and the casting hole 111 with the driving action of the driving component 22, further improving the sealing reliability at the casting hole 111. Compared with the prior art that only sets the main sealing unit, it improves the overall sealing effect of the casting hole 111, thereby ensuring the normal lining construction and construction quality of the tunnel inner wall and avoiding the suspension of lining construction due to the failure of the main sealing unit. Understandably, when the auxiliary sealing unit 21 slides, it can cover both the pouring hole 111 and the gap between the main sealing unit and the pouring hole 111 after the main sealing unit fails to seal. Therefore, during actual construction, the drive assembly 22 can be activated to drive the auxiliary sealing unit 21 to seal the pouring hole 111 simultaneously when the main sealing unit seals the pouring hole 111, ensuring a double sealing effect at the pouring hole 111. Alternatively, the drive assembly 22 can be activated only after the inspection personnel discover that the main sealing unit has failed to seal, so that the auxiliary sealing unit 21 seals the gap between the main sealing unit and the pouring hole 111. In addition, multiple pouring holes 111 are spaced apart along the length of the bottom of the installation groove 11, which improves the pouring efficiency and ensures the compactness of the tunnel inner wall lining structure.

[0030] Optionally, along the direction in which the casting material flows from the trolley body 1 to the tunnel wall, the diameter of each casting hole 111 gradually increases, i.e., each casting hole 111 is funnel-shaped. This shape optimizes the flow of casting material from the inside of the trolley body 1 to the tunnel wall, improving the continuity of the casting process. Compared to setting conical casting holes 111, it also reduces the impact of the casting material on the main sealing unit, extends the service life of the main sealing unit, and ensures the long-term reliability of the sealing mechanism 2. Correspondingly, the main sealing unit is also funnel-shaped, improving the sealing effect on the casting holes 111 and reducing the difficulty of its own disassembly and assembly.

[0031] Specifically, the drive assembly 22 includes an adjusting support 221, a screw 222, a mounting base 223, and a drive component 224. The adjusting support 221, the screw 222, and the drive component 224 are all corresponding one-to-one with the auxiliary sealing unit 21. The adjusting support 221 is threadedly connected to the screw 222. Each screw 222 extends along the length direction of the mounting groove 11. One end of the screw 222 is rotatably mounted on the trolley body 1, and the other end is rotatably mounted on the mounting base 223. The second end of the auxiliary sealing unit 21 is fixedly connected to the adjusting support 221. The drive component 224 is used to drive the screw 222 to rotate, so as to drive the adjusting support 221 to move along the length direction of the mounting groove 11. The two ends of the screw 222 are rotatably mounted on the trolley body 1 and the mounting base 223, respectively. The adjusting support 221 is threadedly connected to the outer circumference of the screw 222. One end of the auxiliary sealing unit 21 is slidably engaged with the mounting groove 11. Therefore, when the driving component 224 drives the screw 222 to rotate, the adjusting support 221 cannot rotate on its own, but can only slide along the axial direction of the screw 222, i.e., the length direction of the mounting groove 11. This allows the auxiliary sealing unit 21 to slide along the mounting groove 11, resulting in strong sliding stability. The screw 222 is rotatably mounted on the mounting base 223, which provides stable support for the rotation of the adjusting support 221 and the screw 222. The adjusting support 221, the screw 222, and the driving component 224 are all one-to-one with the auxiliary sealing unit 21, enabling each auxiliary sealing unit 21 to be adjusted independently, thus improving the adjustment accuracy and flexibility of the auxiliary sealing unit 21. It is understood that, in this embodiment, the first end of the auxiliary sealing unit 21 is initially located in the groove of the mounting groove 11 on the side close to the mounting base 223.

[0032] More specifically, the adjusting support 221 includes a support body 2211 and a mounting part 2212 fixedly connected. The second end of the auxiliary sealing unit 21 is fixedly connected to the support body 2211, and the mounting part 2212 is threadedly connected to the screw 222. The rotation of the adjusting support 221 is achieved by the threaded connection between the mounting part 2212 and the screw 222. The auxiliary sealing unit 21 is fixedly connected to the support body 2211, and the support body 2211 can provide stable support for the auxiliary sealing unit 21, avoiding interference between the movement of the mounting part 2212 and the sliding process of the auxiliary sealing unit 21.

[0033] Optionally, such as Figure 1 As shown, a roller 2231 is rotatably mounted below the mounting base 223. The roller 2231 reduces the overall difficulty for construction personnel in transporting the drive assembly 22, significantly reducing their workload and lowering the driving requirements for each drive component 224. The roller 2231 can be a swivel caster with a locking function, allowing for high mobility when unlocked and strong support stability when locked.

[0034] Specifically, such as Figures 2-4 As shown, multiple guide troughs 12 are spaced apart on the side of the trolley body 1 away from the screw 222. These guide troughs 12 are connected to multiple mounting slots 11 in a one-to-one correspondence. The auxiliary sealing unit 21 can be inserted into the guide trough 12 via the mounting slot 11 to discharge the casting material within the mounting slot 11. Through the sliding process of the auxiliary sealing unit 21 within the mounting slot 11, the casting material accumulated in the mounting slot 11 can be discharged in a timely manner and discharged to the tunnel wall via the guide troughs 12. The guide troughs 12 are all located on the side away from the mounting base 223 along the length of the mounting slot 11, thus increasing the amount of lining material on the tunnel wall after the casting material is discharged. When all the auxiliary sealing units 21 in this embodiment are inserted into the guide groove 12, the pouring materials located on both sides of the trolley body 1 can be connected into an arch shape, thereby completing the tunnel inner wall lining construction operation. There is no need for construction personnel to continuously observe the pouring situation of the upper pouring hole 111 of the trolley body 1, and the occurrence of pouring materials entering the interior of the trolley body 1 through the pouring hole 111 is also reduced.

[0035] Optionally, the trolley body 1 has multiple guide grooves spaced apart on the side near the screw 222. These guide grooves correspond one-to-one with multiple mounting slots 11. The auxiliary sealing unit 21 abuts against the wall of the guide groove and can slide into the mounting slot 11 via the guide groove. The guide groove provides guidance for the sliding process of the auxiliary sealing unit 21 within the mounting slot 11, improving the sliding stability of the auxiliary sealing unit 21 and preventing displacement during long-distance sliding.

[0036] For example, the drive element 224 is a stepper motor, which has high position adjustment accuracy and fast response speed in the control process. In other embodiments, the drive element 224 can also be a hydraulic motor, which has strong shock and vibration resistance and has its own overload protection. The specific structure and working principle of the drive element 224 in this embodiment are all prior art and will not be described in detail here.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tunnel lining trolley, used for lining construction of the inner wall of a tunnel, characterized in that, include: The trolley body (1) has multiple mounting slots (11) spaced apart along its circumference. The multiple mounting slots (11) extend along the length direction of the trolley body (1), and the bottom of the mounting slots (11) has multiple pouring holes (111) spaced apart along its length direction. The sealing mechanism (2) includes a main sealing unit, an auxiliary sealing unit (21), and a drive assembly (22). The main sealing unit is provided in multiple ways, and each main sealing unit can be detachably sealed in any of the casting holes (111). The auxiliary sealing units (21) correspond one-to-one with the mounting grooves (11). Each auxiliary sealing unit (21) extends along the length direction of the mounting groove (11), and the first end of each auxiliary sealing unit (21) along its own length direction is slidably engaged with the mounting groove (11), and the second end is drively connected to the drive assembly (22). The drive assembly (22) is configured to drive each auxiliary sealing unit (21) to slide along the length direction of the mounting groove (11), so that the auxiliary sealing unit (21) can cover the casting hole (111) or cover the gap between the main sealing unit and the casting hole (111).

2. The tunnel lining trolley according to claim 1, characterized in that, The drive assembly (22) includes an adjusting support (221), a screw (222), a mounting base (223), and a drive component (224). The adjusting support (221), the screw (222), and the drive component (224) are all corresponding one-to-one with the auxiliary sealing unit (21). The adjusting support (221) is threaded to the screw (222). Each screw (222) extends along the length direction of the mounting groove (11). One end of the screw (222) is rotatably disposed on the trolley body (1), and the other end is rotatably disposed on the mounting base (223). The second end of the auxiliary sealing unit (21) is fixedly connected to the adjusting support (221). The drive component (224) is used to drive the screw (222) to rotate, so as to drive the adjusting support (221) to move along the length direction of the mounting groove (11).

3. The tunnel lining trolley according to claim 2, characterized in that, The adjusting support (221) includes a support body (2211) and a mounting part (2212) that are fixedly connected. The second end of the auxiliary sealing unit (21) is fixedly connected to the support body (2211), and the mounting part (2212) is threadedly connected to the screw (222).

4. The tunnel lining trolley according to claim 2, characterized in that, A roller (2231) is rotatably provided below the mounting base (223).

5. The tunnel lining trolley according to claim 2, characterized in that, The trolley body (1) is provided with a plurality of material guide grooves (12) at intervals on the side away from the screw (222). The plurality of material guide grooves (12) are connected to the plurality of mounting grooves (11) one by one. The auxiliary sealing unit (21) can be inserted into the material guide groove (12) through the mounting groove (11) to export the casting material in the mounting groove (11).

6. The tunnel lining trolley according to claim 2, characterized in that, The trolley body (1) has a plurality of guide grooves spaced apart on the side near the screw (222). The plurality of guide grooves are connected to the plurality of mounting grooves (11) one by one. The auxiliary sealing unit (21) abuts against the groove wall of the guide groove, and the auxiliary sealing unit (21) can slide into the mounting groove (11) via the guide groove.

7. The tunnel lining trolley according to claim 2, characterized in that, The driving component (224) is a stepper motor.

8. The tunnel lining trolley according to any one of claims 1-7, characterized in that, Along the direction in which the casting material flows from the trolley body (1) to the inner wall of the tunnel, the diameter of each casting hole (111) gradually increases.

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