Gear set driven cabin door and shield machine

Abstract

The utility model discloses a kind of gear set drive cabin doors and shield machine, solve the problem of cumbersome and laborious, poor sealing strength in prior art cabin door operation.The utility model's gear set drive cabin door, including door frame and door panel, gear set is equipped on the door panel, gear set is drivingly connected with driving part, at least one crank slider mechanism is connected on each gear of gear set, crank slider mechanism drives tongue piece and is inserted with the clamping block cooperation of being arranged on door frame;Realize the locking of cabin door.Adopt gear set drive crank slider mechanism movement, realize the locking and opening of cabin door, save time and labour, and operation is more convenient, improve cabin door locking strength.The utility model can replace the cabin door of current bolt compression type, operation saves time and labour, cabin door locking reliability is high, and further improve the safety of shield construction.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, and in particular to a hatch. Background Technology

[0002] During tunnel boring machine (TBM) construction, basic maintenance tasks such as regularly replacing cutting tools and inspecting equipment are required. These tasks necessitate workers opening and closing hatches in the access passage to reach their work positions. Conventional TBM hatches are designed to withstand pressure. During normal TBM operation, these hatches must be closed and kept airtight. Therefore, personnel entering and exiting the hatches must open and close the hatches, especially in TBM construction where pressurized entry is common. This necessitates that the hatch operation in the access passage be as simple, effortless, and time-saving as possible. Conventional TBM hatches are typically sealed with multiple bolts, requiring personnel to remove all bolts to open the hatch, which is time-consuming and dangerous for workers in high-pressure environments. The same applies to closing the hatches. Existing latch-type TBM hatches, such as the opening and closing structure disclosed in Chinese Patent Publication No. CN 218844308 U, involve rotating a handle, inserting a latch into a slot to secure the hatch. Although this hatch replaces the bolt-fixed method, the pin structure has poor sealing strength, and the handwheel is subject to high force and difficult to turn. Therefore, it is necessary to design a gear-driven hatch with good sealing performance and low effort. Utility Model Content

[0003] To address the shortcomings in the aforementioned background technology, this utility model proposes a gear-driven hatch and tunnel boring machine, which solves the problems of cumbersome and laborious hatch operation and poor sealing strength in the prior art.

[0004] The technical solution of this utility model is implemented as follows: a gear set drives a hatch, including a hatch frame and a hatch panel. A gear set is provided on the hatch panel, and the gear set is connected to a driving component. Each gear in the gear set is connected to at least one crank-slider mechanism. The crank-slider mechanism drives a tongue to engage with a locking block on the hatch frame, thereby locking the hatch. Using a gear set to drive the crank-slider mechanism to move achieves both locking and opening of the hatch, saving time and effort, making operation more convenient, and improving the hatch locking strength.

[0005] More preferably, the gear set includes at least one driving gear and at least two driven gears. The driving member drives the driven gears to rotate through the driving gears, and the driven gears drive the corresponding crank-slider mechanism to move.

[0006] More preferably, the gear set includes a driving gear and four driven gears, the four driven gears being a first driven gear, a second driven gear, a third driven gear, and a fourth driven gear, the first driven gear and the third driven gear being located on both sides of the driving gear and both meshing with the driving gear; the fourth driven gear meshes with the first driven gear, and the second driven gear meshes with the third driven gear.

[0007] In a further preferred embodiment, the crank-slider mechanism includes a connecting rod and a slider that are hinged together. The connecting rod is hinged to a corresponding driven gear, and a tongue is connected to a corresponding slider. The rotation of the driven gear drives the connecting rod to move in tandem, thereby enabling the slider to slide linearly and smoothly engage with the locking block.

[0008] Further preferably, the door panel is provided with limiting grooves to limit the tongue, and the limiting grooves are arranged in a one-to-one correspondence with the locking blocks. The driving component is a handwheel, a motor, or a swing cylinder; the locking blocks are distributed around the door frame; the door is locked from all sides, improving the sealing performance.

[0009] Further preferably, the door panel is connected to the door frame via a hinge, and the door panel is provided with a sealing element corresponding to the door frame; thus improving the overall sealing performance of the hatch.

[0010] Further preferably, the door panel is provided with a limiting device that matches the gear set. The limiting device includes a limiting block and a stop block disposed on at least one driven gear, with the limiting block and the stop block engaging in a locking fit.

[0011] A further preferred embodiment is a tunnel boring machine in which the gear set drives the hatch, and the hatch frame is mounted on the shield body partition; the gear set driving the hatch improves the safety of tunnel boring construction.

[0012] The beneficial effects of this invention are as follows: This invention uses gears to drive the opening and closing of the hatch, greatly improving operational convenience. The combination of the gear set and the crank-slider mechanism can simultaneously drive multiple tongues to slide relative to the locking blocks, achieving rapid opening and closing of the hatch. Furthermore, this invention uses multiple tongues and locking blocks evenly distributed on the door panel and door frame to lock the door panel from all directions, improving the overall sealing strength of the hatch. This invention uses a limiting device to prevent the gear set from rotating in reverse when the hatch is locked, providing secondary locking and ensuring the stability of the hatch in the locked state. This invention can replace the current bolt-pressed hatch, saving time and effort in operation, and ensuring high reliability of hatch locking, thereby improving the safety of shield tunneling construction. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the hatch of this utility model.

[0015] Figure 2 This is a schematic diagram showing the state of the hatch of this utility model without the drive component.

[0016] Figure 3 This is a side view of the interior of the hatch of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, in the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1As shown in Embodiment 1, the technical solution of this utility model is implemented as follows: A gear-driven hatch includes a door frame 14 and a door panel 7. The door panel 7 is connected to the door frame 14 via a hinge 11. Under the action of the hinge, the door panel 7 can open and close relative to the door frame, and the door panel 7 is provided with a sealing element 13 corresponding to the door frame 14. The sealing element adopts a sealing strip structure, which improves the overall sealing performance of the hatch when the door panel and the door frame are closed. In this embodiment, the door panel 7 is provided with a gear set, which is connected to a driving component. The driving component drives the gears of the gear set to rotate. Each gear of the gear set is connected to at least one crank-slider mechanism. The crank-slider mechanism drives a tongue 1 to engage with a locking block 5 provided on the door frame 14. The tongue 1 and the corresponding locking block 5 form the locking element of the hatch. Each crank-slider mechanism corresponds to one tongue, and one tongue corresponds to one locking block, ensuring stable locking of the hatch. The gear set drives the crank-slider mechanism to move, thereby locking and opening the hatch, saving time and effort, making operation more convenient, and improving the locking strength of the hatch.

[0021] The gear set described in this embodiment includes at least one drive gear 6 and at least two driven gears. The drive member drives the driven gears to rotate via the drive gear 6, and the driven gears drive the corresponding crank-slider mechanism to move. The number of drive gears 6 can be one or more, and the number of driven gears can be two or more. The drive member drives the drive gears to rotate, and the drive gears drive the corresponding driven gears to rotate, synchronously driving multiple crank-slider mechanisms to achieve synchronous extension and retraction of multiple latches, thereby achieving synchronous opening and closing of the hatch locks; operation is convenient, enabling rapid and stable opening and closing of the hatch.

[0022] like Figure 2 As shown in Embodiment 2, a gear-driven hatch includes a door frame 14 and a door panel 7. The door panel 7 is connected to the door frame 14 via a hinge 11. Under the action of the hinge, the door panel 7 can open and close relative to the door frame. The door panel 7 is provided with a sealing element 13 corresponding to the door frame 14. The sealing element adopts a sealing strip structure, which improves the overall sealing performance of the hatch when the door panel and door frame are closed. Figure 3 As shown in the diagram. In this embodiment, the door panel 7 is equipped with a gear set, which is connected to a driving component. The driving component drives the gears of the gear set to rotate. Each gear in the gear set is connected to at least one crank-slider mechanism. The crank-slider mechanism drives the tongue 1 to engage with the locking block 5 on the door frame 14. The tongue 1 and the corresponding locking block 5 form the locking mechanism of the hatch. Each crank-slider mechanism corresponds to one tongue, and one tongue corresponds to one locking block, ensuring stable locking of the hatch. Using a gear set to drive the crank-slider mechanism to move achieves locking and opening of the hatch, saving time and effort, making operation more convenient, and improving the locking strength of the hatch.

[0023] The gear set described in this embodiment includes one driving gear 6 and four driven gears. The axes of the four driven gears are located on the same vertical line of the door panel, making the overall structure more compact. Both the driving gear 6 and the four driven gears are rotatably mounted on the door panel. To ensure the working condition of the gear set, it is integrated into a housing to extend its service life. In this embodiment, the four driven gears are a first driven gear 3, a second driven gear 8, a third driven gear 9, and a fourth driven gear 10. The first driven gear 3 and the third driven gear 9 are located on both sides of the driving gear 6 and are both meshed with it. The fourth driven gear 10 is driven by the first driven gear 3, and the second driven gear 8 is driven by the third driven gear 9. In actual operation, the driving component drives the driving gear to rotate, which synchronously drives the first driven gear 3 and the third driven gear 9 to rotate. The first driven gear 3 drives the fourth driven gear 10 to rotate, and the third driven gear 9 drives the second driven gear 8 to rotate.

[0024] The crank-slider mechanism described in this embodiment includes a connecting rod 2 and a slider 16 hinged together. The connecting rod 2 is hinged to the corresponding driven gear, and the tongue 1 is connected to the corresponding slider 16. It should be noted that the slider can be omitted as needed, and the tongue can be directly connected to the connecting rod, serving as both the slider component of the crank-slider mechanism and the locking tongue of the lock component. In this embodiment, two connecting rods are connected to the first driven gear 3, two connecting rods are connected to the fourth driven gear 10, one connecting rod is connected to the third driven gear 9, and two connecting rods are connected to the second driven gear 8. Similarly, seven tongues and seven locking blocks are provided to stably lock the door panel.

[0025] In this embodiment, the door panel 7 is provided with a limiting groove 4 to limit the tongue 1. The tongue is slidably disposed in the limiting groove. The limiting groove 4 and the locking block 5 are arranged one-to-one. Under the action of the limiting groove, the tongue can only slide in a straight line so that the tongue can be accurately inserted into the locking block. The locking blocks 5 are distributed around the door frame 14. Taking a rectangular door panel and door frame as an example, one locking block is set at the top and bottom of the door frame. Two locking blocks are set on the left side of the door frame because of the hinge connection, and three locking blocks are set on the right side of the door frame. The above 7 locking blocks correspond to 7 tongues and are evenly distributed on the door panel and door frame to lock the door panel in all directions and improve the overall sealing strength of the hatch. The driving component is a handwheel 12, a motor, or a swing cylinder; it provides power for the rotation of the drive gear. In this embodiment, the driving component is a handwheel 12. The handwheel is connected to the drive gear. Rotating the handwheel drives the drive gear to rotate. Rotating the drive handwheel clockwise opens the hatch, and rotating the drive handwheel counterclockwise locks the hatch.

[0026] Example 3, as Figure 2As shown, a gear-driven hatch, based on embodiment 1 or 2, has a limiting device 15 on the door panel 7 that matches the gear set. The limiting device prevents the gear set from rotating in the reverse direction when the hatch is locked. In this embodiment, as a preferred solution, the limiting device 15 includes a limiting block 151 and a stop block 152 disposed on at least one driven gear. The limiting block 151 and the stop block 152 are locked together. The limiting block is rotatably mounted on the door panel. During use, the limiting block is manually rotated to lock the stop block on the driven gear, thus further locking the gear in the locked state and improving the hatch's sealing effect. It should be noted that the limiting device 15 can also be a pin driven by a cylinder or hydraulic cylinder. The pin is inserted into a pin hole on the gear, and can similarly prevent the gear set from rotating in the reverse direction.

[0027] Example 4: A tunnel boring machine (TBM) includes a gear-driven hatch as described in Examples 1, 2, or 3, with the hatch frame 14 mounted on the shield body partition; alternatively, the hatch frame is directly the shield body partition, i.e., a door opening is made in the shield body partition, and the hatch panel 7 is directly connected to the shield body partition via hinges 11. The operator rotates the drive handwheel, which drives the drive gear to drive the driven gear. Each driven gear controls one or two connecting rods, which connect to tongues, allowing the tongues to slide back and forth within the limiting groove, moving in and out of the locking block, thereby achieving the tightening and loosening of the hatch. This invention offers more convenient operation, saves time, and improves the safety of TBM construction.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gearset-driven hatch, comprising a door frame (14) and a door panel (7), characterized in that: The gear set is provided on the door plate (7), the gear set is in transmission connection with the driving member, at least one crank slider mechanism is connected to each gear of the gear set, and the crank slider mechanism drives the tongue piece (1) to be inserted and matched with the clamping block (5) provided on the door frame (14).

2. The gear pack driven hatch door of claim 1, wherein: The gear set includes at least one driving gear (6) and at least two driven gears, the driving member drives the driven gears to rotate through the driving gear (6), and the driven gears drive corresponding crank slider mechanisms to act.

3. The gear pack driven hatch door of claim 2, wherein: The gear set includes one driving gear (6) and four driven gears, the four driven gears are respectively a first driven gear (3), a second driven gear (8), a third driven gear (9) and a fourth driven gear (10), the first driven gear (3) and the third driven gear (9) are located on both sides of the driving gear (6) and are in meshing engagement with the driving gear (6); the fourth driven gear (10) is in transmission engagement with the first driven gear (3), and the second driven gear (8) is in transmission engagement with the third driven gear (9).

4. A gear pack driven hatch according to claim 2 or 3, characterised in that: The crank slider mechanism includes a connecting rod (2) and a slider (16) that are hingedly connected, the connecting rod (2) is hingedly connected to the corresponding driven gear, and the tongue piece (1) is connected to the corresponding slider (16).

5. The gear pack driven hatch door of claim 4, wherein: The door plate (7) is provided with a limiting groove block (4) for limiting the tongue piece (1), and the limiting groove block (4) is one-to-one corresponding to the clamping block (5).

6. The gear pack driven hatch door of claim 1 or 5, wherein: The driving member is a hand wheel (12) or a motor or a swing oil cylinder; the clamping blocks (5) are distributed and arranged around the door frame (14).

7. The gear pack driven hatch door of claim 1, wherein: The door plate (7) is connected with the door frame (14) through a hinge (11), and the door plate (7) is provided with a sealing element (13) corresponding to the door frame (14).

8. The gear pack driven hatch door of claim 2 or 7, wherein: The door plate (7) is provided with a limiting device (15) matched with the gear set.

9. The gear pack driven hatch door of claim 8, wherein: The limiting device (15) includes a limiting block (151) and a stop block (152) provided on at least one driven gear, and the limiting block (151) is in blocking and fixed cooperation with the stop block (152).

10. A tunneling machine characterized by: The gear set driving cabin door includes the gear set according to any one of claims 1-9, and the door frame (14) is arranged on a shield bulkhead.

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