A shield machine for protecting soil bin workers

Abstract

The present invention provides a shield machine for protecting soil bin workers, comprising: a shield body; a telescopic oil cylinder connected to the shield body; an eaves plate arranged on the shield body and connected to the telescopic oil cylinder, wherein the telescopic oil cylinder is adapted to drive the eaves plate to extend out or be stored in the shield body. The shield machine for protecting soil bin workers provided by the present invention, during operation, when the worker needs to open the cabin, such as for inspection or tool adjustment, the telescopic oil cylinder extends to drive the eaves plate to extend out of the shield body, and the worker can work under the eaves plate, and the eaves plate can block the debris and sand and gravel falling in the tunnel, thereby ensuring the personal safety of the worker and reducing the construction risk; after the cabin opening work is completed, the telescopic oil cylinder retracts, driving the eaves plate to be stored in the shield body, thereby realizing the storage of the eaves plate. When the shield machine is in the excavation state, the eaves plate is located in the shield body, and the eaves plate does not need to occupy additional space, does not affect the normal operation of the shield machine, and ensures the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a shield machine for protecting soil bin workers. Background Art

[0002] With the rapid development of shield construction technology, shield tunneling machines are widely used in various fields such as rail transportation, water diversion projects, coal mine inclined shafts, underground pipelines, etc. During the construction of shield machines, when workers need to open the cabin, the falling tunnel debris and sand and gravel may cause injuries to the workers, and the construction risk is relatively high. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] In view of this, the present invention provides a shield machine for protecting soil bin workers, comprising: a shield body; a telescopic cylinder connected to the shield body; an eaves plate arranged on the shield body and connected to the telescopic cylinder, the telescopic cylinder being adapted to drive the eaves plate to extend or be retracted into the shield body.

[0005] The shield machine for protecting soil bin workers provided by the present invention, during the working process, when the workers need to open the cabin for work, such as inspection or tool adjustment, the telescopic cylinder extends to drive the eaves plate to extend out of the shield body, and the workers can work under the eaves plate. The eaves plate can block the debris and sand and gravel that fall in the tunnel, thereby ensuring the personal safety of the workers and reducing the construction risk. After the cabin opening work is completed, the telescopic cylinder retracts, driving the eaves plate to be stored in the shield body, thereby realizing the storage of the eaves plate. When the shield machine is in the excavation state, the eaves plate is located in the shield body, and the eaves plate does not need to occupy additional space, does not affect the normal operation of the shield machine, and ensures the construction efficiency.

[0006] In addition, the shield machine for protecting soil bin workers in the above technical solution provided by the present invention may also have the following additional technical features:

[0007] In the above technical solution, further, the shield machine for protecting soil bin workers also includes: a fixed plate, and the telescopic cylinder is connected to the eaves plate through the fixed plate.

[0008] In this technical solution, a fixed plate is further included, and a connection method between the telescopic cylinder and the eaves board is further provided. The fixed plate is connected to the telescopic cylinder and the eaves board. When the telescopic cylinder is extended or contracted, the thrust or pulling force can be transmitted through the fixed plate, thereby driving the eaves board to contract.

[0009] In any of the above technical solutions, further, the shield machine for protecting soil bin workers also includes: a cylinder extension rod, which is detachably connected to one end of the eaves board close to the telescopic cylinder, and when the cylinder extension rod is connected to the eaves board, the fixed plate is connected to one end of the cylinder extension rod away from the eaves board and the telescopic cylinder.

[0010] This technical solution further includes a cylinder extension rod. Taking into account the limited stroke of the telescopic cylinder, through the setting of the cylinder extension rod, when the shield machine needs to open the cabin for operation, the telescopic cylinder is extended to make the eaves plate extend out of the shield body. The telescopic cylinder can then be removed and the cylinder extension rod can be installed at the end of the eaves plate close to the telescopic cylinder. Then, the fixed plate can be connected to the cylinder extension rod and the telescopic cylinder to increase the effective stroke of the telescopic cylinder. The telescopic cylinder can be extended again to drive the eaves plate to extend a longer distance through the cylinder extension rod, thereby further ensuring the personal safety of the staff and reducing construction risks.

[0011] Specifically, a fixing hole and a threaded hole may be provided at one end of the telescopic cylinder close to the eaves plate, a fixing hole and a threaded hole may be provided at one end of the cylinder extension rod, and a thread may be provided at the other end. The eaves plate and the cylinder extension rod are connected by a pin shaft, and the fixing plate may be fixed to one end of the telescopic cylinder by passing through the fixing hole or by a screw.

[0012] Specifically, there may be multiple cylinder extension rods, and the multiple cylinder extension rods may be connected in sequence through threaded holes and threaded fit.

[0013] In any of the above technical solutions, further, the shield machine for protecting soil bin workers also includes: a guide member connected to the shield body, and the eaves plate is slidably connected to the guide member.

[0014] This technical solution further includes a guide member. Considering that the eaves board has a certain dead weight, in order to prevent the eaves board from deformation and facilitate the extension and storage of the eaves board, the guide member is provided to support and guide the eaves board during the process of extending or storing the eaves board in the shield body.

[0015] In any of the above technical solutions, further, a slide groove is provided in the guide member, and the eaves plate passes through the slide groove.

[0016] In this technical solution, a guide member structure is further provided. By providing a slide groove in the guide member, the eaves board can slide in the slide groove to play a guiding role. At the same time, the guide member can support the eaves board.

[0017] Specifically, the guide member also includes a mounting plate and a guide block. The mounting plate is connected to the shield body, the length direction of the mounting plate is parallel to the length direction of the shield body, the guide block is arranged on the mounting plate, the slide groove is formed in the guide block, and the eaves plate is located between the mounting plate and the inner wall of the shield body.

[0018] In any of the above technical solutions, further, the shield machine for protecting soil bin workers also includes: a protective end cover, one end of which is hinged to the shield body, and when the eaves board is stored in the shield body, the protective end cover is adapted to block the eaves board.

[0019] In this technical solution, a protective end cover is further included. When there is no need to open the cabin for work, the protective end cover blocks the eaves board to prevent the eaves board from extending through the shield body, thereby ensuring the safe operation of the shield machine to protect the soil bin workers. It is understandable that the protective end cover can be fixed to the movable end of the eaves board by other connection methods such as threads or buckles to block the eaves board.

[0020] Specifically, one end of the protective end cover may also be hinged to the mounting plate of the guide member.

[0021] In any of the above technical solutions, further, the shield machine for protecting soil bin workers also includes: a cutterhead, the shield body is a front shield, and the cutterhead is hinged to one end of the front shield away from the telescopic cylinder.

[0022] In this technical solution, a cutter disc is further included, and the shield body is a front shield. The composition of the shield machine for protecting the workers in the soil bin and the setting position of the eaves board are further clarified. When it is necessary to open the cabin for operation, the cutter disc is first rotated and the position of the cutter disc is adjusted to ensure that there is enough space for the eaves board to extend out. After the eaves board extends out of the shield body, the staff exits the cabin through the soil bin between the cutter disc and the shield body, which is convenient for the maintenance and inspection of the shield machine for protecting the workers in the soil bin.

[0023] In any of the above technical solutions, further, the shield machine for protecting soil bin workers also includes: a partition connected to the shield body, one end of the telescopic cylinder is connected to the partition, and the other end of the telescopic cylinder is connected to the eaves board.

[0024] This technical solution further includes a partition, which provides an installation position for the telescopic cylinder so that the telescopic direction of the telescopic cylinder can be parallel to the length direction of the eaves board, making it convenient to drive the eaves board to extend or retract the shield body through the telescopic cylinder.

[0025] Specifically, the partition is arranged in a direction perpendicular to the inner wall of the shield body, and the telescopic cylinder is arranged in a direction perpendicular to the partition.

[0026] Specifically, a support plate may be further included, wherein the support plate is connected to the shield body, and the eaves plate passes through the support plate, and the support plate plays a role of supporting and fixing the shield body.

[0027] In any of the above technical solutions, further, the shield body is cylindrical, and the cross-section of the eaves plate along the radial direction of the shield body is arc-shaped.

[0028] In this technical proposal, the shapes of the shield body and the eaves board are further clarified. The shield body is cylindrical to facilitate underground construction, and the cross-section of the eaves board is arc-shaped to match the shape of the shield body. On the one hand, it is convenient for the installation of the eaves board. On the other hand, when the debris and sand and gravel in the tunnel fall on the eaves board, the eaves board can have better impact resistance. At the same time, the fallen debris and sand and gravel will fall through both sides of the eaves board, which will not cause harm to people and is convenient for the storage of the eaves board.

[0029] In any of the above technical solutions, further, there are four groups of eaves panels, which are distributed in sequence along the circumference of the shield body, and each group of eaves panels is connected to a telescopic cylinder.

[0030] In this technical solution, there are four groups of eaves boards, which are arranged in sequence. On the one hand, considering that the shape of the eaves boards needs to be adapted to the shape of the shield body, the arrangement of four groups of eaves boards facilitates the installation of the eaves boards; on the other hand, the arrangement of four groups of eaves boards relatively reduces the width of a single eaves board, reduces the dead weight of the eaves board, and facilitates the telescopic cylinder to quickly drive the eaves board to extend or retract, thereby improving the response efficiency of the shield machine for protecting soil bin workers; on the other hand, when a single eaves board or telescopic cylinder is damaged, other eaves boards can still play a shielding effect, thereby ensuring the safety of construction.

[0031] Specifically, the cross-section of each set of eaves panels in the width direction is arc-shaped, and the angle of the arc is 10° to 40°.

[0032] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 A schematic structural diagram of a shield machine for protecting soil bin workers provided according to an embodiment of the present invention is shown;

[0035] Figure 2a to Figure 2d A schematic structural diagram showing a state in which an eaves plate of a shield machine for protecting soil bin workers provided by an embodiment of the present invention is extended out of a shield body;

[0036] Figure 3a to Figure 3d A schematic structural diagram showing a shield body state of a shield plate of a shield machine for protecting soil bin workers provided by an embodiment of the present invention being retracted;

[0037] Figure 4 A structural schematic diagram showing the distribution states of four groups of eaves panels of a shield machine for protecting soil bin workers provided according to an embodiment of the present invention is shown.

[0038] in, Figures 1 to 4 The corresponding relationship between the reference numerals and the component names is as follows:

[0039] 2 shield body, 4 telescopic cylinder, 6 eaves plate, 8 fixed plate, 10 cylinder extension rod, 12 guide piece, 14 protective end cover, 16 knife disc, 18 partition. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] Refer to the following Figures 1 to 4 A shield machine for protecting soil bin workers according to some embodiments of the present invention is described.

[0043] Embodiment 1

[0044] like Figure 1 As shown, an embodiment of the present invention provides a shield machine for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves plate 6.

[0045] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0046] The shield machine for protecting soil bin workers provided by the present invention can be used in the working process when workers need to open the tunnel, such as for inspection or tool adjustment. Figure 2a and Figure 2b As shown, the telescopic cylinder 4 extends to drive the eaves plate 6 to extend out of the shield body 2, so that the staff can work under the eaves plate 6. The eaves plate 6 can block the debris and sand and gravel falling in the tunnel, ensuring the personal safety of the staff and reducing the construction risk. After the cabin opening work is completed, Figure 3b and Figure 3c As shown, the telescopic cylinder 4 retracts, driving the eaves plate 6 to be stored in the shield body 2, thereby storing the eaves plate 6. When the shield machine for protecting soil bin workers is in the excavation state, the eaves plate 6 is located in the shield body 2, and the eaves plate 6 does not need to occupy additional space, does not affect the normal operation of the shield machine for protecting soil bin workers, and ensures construction efficiency.

[0047] Embodiment 2

[0048] like Figure 1 As shown, an embodiment of the present invention provides a shield machine eaves shielding device for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves shielding plate 6.

[0049] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0050] like Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a fixed plate 8, and the telescopic cylinder 4 is connected to the eaves plate 6 through the fixed plate 8.

[0051] In this embodiment, a fixed plate 8 is further included, which further provides a connection method between the telescopic cylinder 4 and the eaves board 6. The fixed plate 8 is connected to the telescopic cylinder 4 and the eaves board 6. When the telescopic cylinder 4 is extended or contracted, the thrust or pulling force can be transmitted through the fixed plate 8, thereby driving the eaves board 6 to contract.

[0052] Embodiment 3

[0053] like Figure 1 As shown, an embodiment of the present invention provides a shield machine for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves plate 6.

[0054] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0055] Furthermore, the shield machine for protecting soil bin workers also includes a fixed plate 8 , and the telescopic cylinder 4 is connected to the eaves plate 6 via the fixed plate 8 .

[0056] Furthermore, the shield machine for protecting soil bin workers also includes: a cylinder extension rod 10, which is detachably connected to the end of the eaves board 6 close to the telescopic cylinder 4. When the cylinder extension rod 10 is connected to the eaves board 6, the fixed plate 8 is connected to the end of the cylinder extension rod 10 away from the eaves board 6 and the telescopic cylinder 4.

[0057] In this embodiment, a cylinder extension rod 10 is further included. Considering that the travel of the telescopic cylinder 4 is limited, by setting the cylinder extension rod 10, when the shield machine needs to open the cabin for operation, Figure 2a and 2dAs shown, after the telescopic cylinder 4 is extended so that the eaves plate 6 extends out of the shield body, the telescopic cylinder 4 can be disassembled, and the cylinder extension rod 10 is installed at the end of the eaves plate 6 close to the telescopic cylinder 4, and then the fixed plate 8 is connected to the cylinder extension rod 10 and the telescopic cylinder 4, so that the effective stroke of the telescopic cylinder 4 can be increased. When the telescopic cylinder 4 is extended again, the eaves plate 6 can be extended to a longer distance through the cylinder extension rod 10, which further ensures the personal safety of the workers and reduces the construction risks. Figure 3a and Figure 3d As shown, when the hatch opening operation is completed and the canopy plate 6 needs to be retracted, as shown in FIG. Figure 3a and Figure 3b As shown, the telescopic cylinder 4 contracts to drive the eaves plate 6 to contract through the cylinder extension rod 10, and then the cylinder extension rod 10 is removed; Figure 3c and 3d As shown, the telescopic cylinder 4 contracts again, driving the eaves plate 6 to continue to contract through the fixing plate 8, until the eaves plate 6 is stored in the shield body and the protective end cover 14 is closed.

[0058] Specifically, a fixing hole and a threaded hole may be provided at one end of the telescopic cylinder 4 close to the eaves plate 6, a fixing hole and a threaded hole may be provided at one end of the cylinder extension rod 10, and a thread may be provided at the other end, the eaves plate 6 and the cylinder extension rod 10 are connected by a pin shaft, and the fixing plate 8 may be fixed to one end of the telescopic cylinder 4 by passing through the fixing hole or by a screw.

[0059] Specifically, there may be multiple cylinder extension rods 10, and the multiple cylinder extension rods 10 may be connected in sequence through threaded holes and threaded fit.

[0060] Embodiment 4

[0061] like Figure 1 As shown, an embodiment of the present invention provides a shield machine for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves plate 6.

[0062] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0063] like Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a guide member 12 connected to the shield body 2, and the eaves plate 6 is slidably connected to the guide member 12.

[0064] In this embodiment, a guide member 12 is further included. Considering that the eaves board 6 has a certain self-weight, in order to prevent the eaves board 6 from deformation and facilitate the extension and storage of the eaves board 6, the guide member 12 is provided to support and guide the eaves board 6 during the process of extending or storing the eaves board 6 in the shield body 2.

[0065] Specifically, the guide member 12 also includes a mounting plate and a guide block. The mounting plate is connected to the shield body 2. The length direction of the mounting plate is parallel to the length direction of the shield body 2. The guide block is arranged on the mounting plate. The slide groove is formed in the guide block. The eaves plate 6 is located between the mounting plate and the inner wall of the shield body 2.

[0066] Embodiment 5

[0067] like Figure 1 As shown, an embodiment of the present invention provides a shield machine for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves plate 6.

[0068] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0069] like Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a guide member 12 connected to the shield body 2, and the eaves plate 6 is slidably connected to the guide member 12.

[0070] like Figures 1 to 4 As shown, further, a slide groove is provided in the guide member 12, and the eaves plate 6 passes through the slide groove.

[0071] In this embodiment, a guide member 12 structure is further provided. By providing a slide groove in the guide member 12, the eaves board 6 can slide in the slide groove to play a guiding role. At the same time, the guide member 12 can support the eaves board 6.

[0072] Specifically, one end of the protective end cover 14 may also be hinged to the mounting plate of the guide member 12 .

[0073] Embodiment 6

[0074] like Figure 1 As shown, an embodiment of the present invention provides a shield machine for protecting soil bin workers, including: a shield body 2, a telescopic cylinder 4 and an eaves plate 6.

[0075] The telescopic cylinder 4 is connected to the shield body 2 ; the eaves plate 6 is arranged on the shield body 2 and connected to the telescopic cylinder 4 , and the telescopic cylinder 4 is adapted to drive the eaves plate 6 to extend or be stored in the shield body 2 .

[0076] like Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a protective end cover 14, one end of which is hinged to the shield body 2, and when the eaves board 6 is received in the shield body 2, the protective end cover 14 is adapted to block the eaves board 6.

[0077] In this embodiment, a protective end cover 14 is further included. When there is no need to open the cabin for work, the protective end cover 14 shields the eaves board 6 to prevent the eaves board 6 from extending through the shield body 2, thereby ensuring the safe operation of the shield machine. It is understandable that the protective end cover 14 can be fixed to the movable end of the eaves board 6 by screw connection to shield the eaves board 6.

[0078] Embodiment 7

[0079] Based on any one of the embodiments 1 to 6, Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a cutter head 16, the shield body 2 is a front shield, and the cutter head 16 is hinged to one end of the front shield away from the telescopic cylinder 4.

[0080] In this embodiment, a cutter disc 16 is further included, the shield body 2 is further clarified as the front shield, the composition of the shield machine for protecting soil bin workers and the setting position of the eaves board 6 are further clarified. When it is necessary to open the cabin for operation, the cutter disc 16 is first rotated, and the position of the cutter disc 16 is adjusted to ensure that the eaves board 6 has enough space to extend out. After the eaves board 6 extends out of the shield body 2, the staff exits the cabin through the soil bin between the cutter disc 16 and the shield body 2, which is convenient for the maintenance and inspection of the shield machine for protecting soil bin workers.

[0081] Embodiment 8

[0082] Based on any one of the embodiments 1 to 6, Figures 1 to 4 As shown, further, the shield machine for protecting soil bin workers also includes: a partition 18 connected to the shield body 2, one end of the telescopic cylinder 4 is connected to the partition 18, and the other end of the telescopic cylinder 4 is connected to the eaves plate 6.

[0083] In this embodiment, a partition 18 is further included. The partition 18 is set to provide an installation position for the telescopic cylinder 4, so that the telescopic direction of the telescopic cylinder 4 can be parallel to the length direction of the eaves board 6, which is convenient for the telescopic cylinder 4 to drive the eaves board 6 to extend or retract the shield body 2.

[0084] Specifically, the partition 18 is disposed in a direction perpendicular to the inner wall of the shield body 2 , and the telescopic cylinder 4 is arranged in a direction perpendicular to the partition 18 .

[0085] Specifically, a support plate may be further included, the support plate is connected to the shield body 2 , the eaves plate 6 passes through the support plate, and the support plate plays a role of supporting and fixing the shield body 2 .

[0086] Embodiment 9

[0087] Based on any one of the embodiments 1 to 6, Figures 1 to 4 As shown, further, the shield body 2 is cylindrical, and the cross section of the eaves plate 6 along the radial direction of the shield body 2 is arc-shaped.

[0088] In this embodiment, the shapes of the shield body 2 and the eaves board 6 are further clarified. The shield body 2 is cylindrical to facilitate underground construction, and the cross-section of the eaves board 6 is arc-shaped to adapt to the shape of the shield body 2. On the one hand, it is convenient for the installation of the eaves board 6. On the other hand, when the debris and sand and gravel in the tunnel fall on the eaves board 6, the eaves board 6 can have better impact resistance. At the same time, the fallen debris and sand and gravel will fall through the two sides of the eaves board 6, which will not cause harm to people and is convenient for the storage of the eaves board 6.

[0089] Embodiment 10

[0090] Based on any one of the embodiments 1 to 6, Figure 4 As shown, further, there are four groups of eaves plates 6 , which are sequentially distributed along the circumference of the shield body 2 , and each group of eaves plates 6 is connected to a telescopic cylinder 4 .

[0091] In this embodiment, there are four groups of eaves boards 6, and the four groups of eaves boards 6 are arranged in sequence. On the one hand, considering that the shape of the eaves boards 6 needs to be adapted to the shape of the shield body 2, the arrangement of four groups of eaves boards 6 facilitates the installation of the eaves boards 6; on the other hand, the arrangement of four groups of eaves boards 6 relatively reduces the width of a single eaves board 6, reduces the dead weight of the eaves board 6, and facilitates the telescopic cylinder 4 to quickly drive the eaves board 6 to extend or retract, thereby improving the response efficiency of the shield machine for protecting soil bin workers; on the other hand, when a single eaves board 6 or the telescopic cylinder 4 is damaged, the other eaves boards 6 can still play a shielding effect, thereby ensuring the safety of construction.

[0092] Specifically, the cross-section of each set of eaves panels 6 in the width direction is arc-shaped, and the angle of the arc is 10° to 40°. Specific embodiments

[0094] like Figures 1 to 4 As shown, Figure 2c and Figure 3bThe direction of the middle arrow indicates the installation direction of the oil cylinder extension rod 10. An embodiment of the present invention provides a shield machine for protecting soil bin workers, including a cutter head 16, a protective end cover 14, an eaves plate 6, a shield body 2, a fixed plate 8, a telescopic oil cylinder 4, a soil bin, an eaves plate 10, a guide member 12, and a partition 18. The protective end cover 14 is connected to the shield body 2 by screws, and the telescopic oil cylinder 4 is fixed on the partition 18 of the shield body 2, which does not affect the normal excavation work of the shield machine for protecting soil bin workers. The eaves plate 6 is positioned and installed with the telescopic oil cylinder 4 through the fixed plate 8. When the telescopic oil cylinder 4 extends or retracts, the eaves plate 6 is driven to extend or retract through the guide member 12. When the eaves plate 6 is extended to the specified position, the soil bin workers perform the cabin opening operation to reduce the possibility that the workers are injured by the debris and sand and gravel that may fall from the tunnel during the operation, thereby achieving the purpose of protecting the personal safety of the soil bin workers.

[0095] When the shield machine is in the excavation state, the eaves plate 6 is installed on the partition 18 of the shield body 2 and does not affect the operation of the shield machine. When the operator needs to open the cabin, the shield machine protecting the soil bin operator can operate in the following steps: Figure 1 As shown, 1) first, the blade disc 16 needs to be rotated and the position of the blade disc 16 needs to be adjusted to ensure that the eaves plate 6 has enough space to extend; 2) after the preparation work is completed, the eaves plate 6 and the telescopic cylinder 4 are in working condition; Figure 2a and Figure 2b As shown, 3) the protective end cover located inside the shield body 2 is removed, the telescopic cylinder 4 is extended to the maximum length, and the eaves plate 6 is driven to extend through the guide member 12; 4) the telescopic cylinder 4 is then retracted to the minimum position, and the eaves plate 6 is repositioned and installed through the fixing plate 8; 5) the telescopic cylinder 4 is then extended to the maximum position again, and the eaves plate 6 is repeatedly driven to complete the extension action; as shown Figure 2c and Figure 2d As shown, 6) the telescopic cylinder 4 is retracted again, and the cylinder extension rod 10 is added and positioned and installed with the telescopic cylinder 4 through the fixing plate 8. The telescopic cylinder 4 continues to extend, driving the eaves plate 6 to extend to the specified position through the guide member 12. At this time, the soil bin workers begin to open the cabin for construction work, and avoid being hit by debris and sand and gravel falling from the top of the tunnel during the operation. When the soil bin workers complete the maintenance work, the shield machine that protects the soil bin workers can operate in the following steps: the eaves mechanism is ready to retract, such as Figure 3a and Figure 3b As shown, 1) after the telescopic cylinder 4 drives the eaves plate 6 to retract to the minimum limit position through the guide member 12, the cylinder extension rod 10 is removed; Figure 3c As shown, 2) the telescopic cylinder 4 is then extended again, and the eaves plate 6 and the telescopic cylinder 4 are repositioned and installed through the fixing plate 8, and the eaves plate 6 is driven to retract to the minimum position until the telescopic cylinder 4 drives the eaves plate 6 to be completely retracted into the shield body 2; Figure 3d As shown, 3) finally reinstall the protective end cover. So far, the shield body 2 eaves device working process is completed.

[0096] The beneficial effects of this embodiment are: 1) When the soil bin workers are opening the cabin, compared with the shield machine without the eaves plate 6 installed, the risk of the workers being hit by the debris and sand and gravel falling from the tunnel during the cabin construction operation is reduced, thereby improving the safety of the workers; 2) The eaves plate 6 is easy to install and does not affect the internal structure configuration of the shield body 2; 3) 4 groups of eaves plates 6 distributed in a fan shape are installed in the shield body 2 to maximize the eaves protection area and improve the safety of workers' operations.

[0097] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shield machine for protecting soil bin workers, characterized in that: include: shield; A telescopic oil cylinder connected to the shield body; A knife disc, wherein the shield body is a front shield, and the knife disc is hinged to an end of the front shield away from the telescopic cylinder; An eaves plate is arranged on the shield body and connected to the telescopic cylinder, wherein the telescopic cylinder is adapted to drive the eaves plate to extend out or be stored in the shield body; A fixing plate, through which the telescopic cylinder is connected to the eaves plate; A cylinder extension rod, wherein the cylinder extension rod is detachably connected to one end of the eaves plate close to the telescopic cylinder, and when the cylinder extension rod is connected to the eaves plate, the fixing plate is connected to one end of the cylinder extension rod away from the eaves plate and the telescopic cylinder; There are multiple cylinder extension rods, and the multiple cylinder extension rods are connected in sequence through threaded holes and threaded fit; When the cabin needs to be opened, the knife disc is first rotated to adjust the position of the knife disc to ensure that there is space for the eaves plate to extend.

2. The shield machine for protecting soil bin workers according to claim 1, characterized in that: Also includes: A guide member is connected to the shield body, and the eaves plate is slidably connected to the guide member.

3. The shield machine for protecting soil bunker workers according to claim 2, characterized in that: A slide groove is provided in the guide member, and the eaves plate passes through the slide groove.

4. The shield machine for protecting soil bunker workers according to claim 1, characterized in that: Also includes: A protective end cover, one end of which is hinged to the shield body, and when the eaves board is accommodated in the shield body, the protective end cover is adapted to shield the eaves board.

5. The shield machine for protecting soil bunker workers according to any one of claims 1 to 4, characterized in that: Also includes: A partition is connected to the shield body, one end of the telescopic cylinder is connected to the partition, and the other end of the telescopic cylinder is connected to the eaves plate.

6. The shield machine for protecting soil bunker workers according to any one of claims 1 to 4, characterized in that: The shield body is cylindrical, and the cross section of the eaves plate along the radial direction of the shield body is arc-shaped.

7. The shield machine for protecting soil bunker workers according to claim 6, characterized in that: There are four groups of eaves plates, which are sequentially distributed along the circumference of the shield body, and each group of eaves plates is connected to one telescopic cylinder.

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