A support device for tunnel construction

Abstract

The present invention discloses a support device for tunnel construction, which relates to the field of tunnel construction and comprises a support plate and a telescopic rod, wherein the telescopic rod is connected to the support plate through a lifting plate arranged at one end, and can drive the support plate to support the inner wall of the tunnel; a winding drum, a traction rope is wound around the outside of the winding drum, and one end of the traction rope is connected to the telescopic rod, and is used to drive the telescopic rod to move up and down; a connecting mechanism is installed outside the lifting plate and is used to connect the lifting plate and the support plate; the lifting mechanism drives the telescopic rod to rise and fall by driving the winding drum to rotate; the anti-fall mechanism can prevent the telescopic rod from falling by limiting the rotation of the winding drum; the support device for tunnel construction drives the support plate to support the top of the tunnel through the traction rope, which can effectively prevent the support device from tipping over and falling when in use, thereby increasing the safety and stability of the device.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, in particular to a supporting device for tunnel construction. Background Art

[0002] Tunnels are a way for humans to utilize underground space. They are engineering buildings buried in the ground. The structure of a tunnel generally consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel portal. The ancillary equipment includes a shelter, fire-fighting facilities, emergency communications, and drainage facilities. During tunnel construction, support devices are required for protection.

[0003] The existing support device for tunnel construction supports the inner wall of the tunnel through a cylinder and a support frame. The stability of the support device is insufficient, and the support strength cannot meet the requirements. The support frame supported by the top of the cylinder is prone to fall, causing injuries to workers, and there are safety hazards during construction. Summary of the invention

[0004] The object of the present invention is to provide a support device for tunnel construction to solve the problem of insufficient safety of existing support devices for tunnel construction.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A support device for tunnel construction, comprising a support plate, and further comprising:

[0007] A telescopic rod, which is connected to a support plate via a lifting plate provided at one end, and can drive the support plate to support the inner wall of the tunnel;

[0008] A winding drum, the outside of which is wound with a traction rope, one end of which is connected to the telescopic rod and is used to drive the telescopic rod to move up and down;

[0009] A connecting mechanism, installed outside the lifting plate, used to connect the lifting plate and the supporting plate;

[0010] A lifting mechanism, installed outside the telescopic rod, used to drive the telescopic rod to move up and down by driving the winding drum to rotate;

[0011] The anti-falling mechanism is connected to the lifting mechanism and can prevent the telescopic rod from falling by limiting the rotation of the winding drum.

[0012] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0013] In an optional solution: the connecting mechanism includes a slide rail, a slider and a support rod, the slide rail is fixedly connected to the lifting plate, the slider is slidably installed inside the slide rail and is rotatably connected to one end of the support rod, the other end of the support rod is hinged to the support plate, and a buffer member for buffering is also provided between the sliders.

[0014] In an optional scheme: the lifting mechanism includes a movable block, a lifting ear and a guide wheel, the side wall of the sleeve is provided with a movable groove, the movable block is slidably installed inside the movable groove, one end of the movable block is fixedly connected to the telescopic rod, the other end of the movable block passes through the outside of the sleeve and is connected to the lifting ear, the guide wheel is horizontally installed outside the sleeve, one end of the traction rope passes through the guide wheel and is connected to the lifting ear, and the lifting mechanism also includes a winding component for retracting and releasing the traction rope.

[0015] In an optional solution: the winding assembly includes a winding drum for winding the traction rope, a rotating rod fixedly connected to the winding drum, and a power member for driving the rotating rod to rotate.

[0016] In an optional solution: the anti-fall mechanism includes a movable block slidably mounted on the rotating rod, a limiting rod mounted on the movable block, limiting plates arranged at both ends of the winding drum, and a limiting block with a limiting hole.

[0017] In an optional solution: a reinforcement component for fixing the supporting device is also provided on the outside of the base plate.

[0018] In an optional solution: the reinforcement component includes a sliding plate installed inside the protective box, a column vertically installed on one side of the sliding plate, and a driving component for driving the sliding plate to rise and fall.

[0019] In an optional solution: the drive assembly includes a threaded sleeve and a screw, the threaded sleeve is rotatably mounted inside the sliding plate, the screw is rotatably mounted outside the base plate, and the screw passes through the threaded sleeve and is threadably engaged with the threaded sleeve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The support device for tunnel construction has a simple structure. The support plate is driven by a traction rope to support the tunnel top, and the support plate is raised and lowered by the traction rope and telescopic rod. It is easy to use and the wire rope is easy to install and disassemble. An anti-fall mechanism is provided inside the device to prevent the support device from tipping over and falling during use, thereby increasing the safety and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the support device for tunnel construction.

[0023] Figure 2This is a schematic diagram of the structure of the support plate in the support device for tunnel construction.

[0024] Figure 3 This is a schematic diagram of the structure of the slide rail in the support device for tunnel construction.

[0025] Figure 4 This is a schematic diagram of the structure of a sleeve in a support device for tunnel construction.

[0026] Figure 5 This is a schematic diagram of the structure of the threaded rod in the support device for tunnel construction.

[0027] Figure 6 A cross-sectional view of a protective box in a support device for tunnel construction.

[0028] Figure 7 Schematic diagram of the anti-fall mechanism in the support device for tunnel construction.

[0029] Figure numerals: 1-support plate, 101-anti-slip groove, 2-protective net, 3-hinge block, 4-support rod, 5-slider, 6-slide rail, 601-limiting groove, 7-spring, 8-lifting plate, 9-telescopic rod, 10-guide wheel, 11-sleeve, 111-slide groove, 112-movable groove, 113-scale line, 12-traction rope, 13-movable block, 14-lifting ear, 15-threaded rod, 16-locking nut, 17-anti Guard box, 171-sliding groove, 18-transmission motor, 19-winding drum, 20-rotating rod, 21-partition, 22-sliding plate, 23-column, 24-bottom plate, 241-through hole, 25-connecting plate, 26-universal wheel, 27-screw, 28-threaded sleeve, 29-rocker, 30-sliding rod, 31-movable block, 32-limiting plate, 321-square groove, 33-limiting rod, 34-limiting block, 341-limiting hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] like Figure 1-4 As shown, a supporting device for tunnel construction provided by an embodiment of the present invention includes a supporting plate 1 and further includes:

[0033] A telescopic rod 9, wherein the telescopic rod 9 is connected to the support plate 1 through a lifting plate 8 provided at one end, and can drive the support plate 1 to support the inner wall of the tunnel;

[0034] A winding drum 19, the outside of which is wound with a traction rope 12, one end of which is connected to the telescopic rod 9, for driving the telescopic rod 9 to move up and down;

[0035] A connecting mechanism, installed outside the lifting plate 8, used to connect the lifting plate 8 and the supporting plate 5;

[0036] A lifting mechanism, installed outside the telescopic rod 9, is used to drive the telescopic rod 9 to move up and down by driving the winding drum 19 to rotate;

[0037] The anti-falling mechanism is connected to the lifting mechanism and can prevent the telescopic rod 9 from falling by limiting the rotation of the winding drum 19 .

[0038] The support device for tunnel construction drives the support plate 1 to support the tunnel top through the lifting mechanism. The anti-fall mechanism can prevent the support device from tipping over and falling during use. As an embodiment, the left and right, up and down positions of the various components given in the accompanying drawings are only an arrangement method, and the specific positions are set according to specific needs.

[0039] like Figure 2 As shown, as a preferred embodiment of the present invention, the connecting mechanism includes a slide rail 6, a slider 5 and a support rod 4, the slide rail 6 is fixedly connected to the lifting plate 8, the slider 5 is slidably installed inside the slide rail 6 and is rotatably connected to one end of the support rod 4, the other end of the support rod 4 is hinged to the support plate 1 through a hinge seat 3, a limiting groove 601 is provided on the outside of the slide rail 6, slide rods 30 matching the limiting groove 601 are provided on both sides of the slider 5, and a buffer for buffering is also provided between the sliders 5, the buffer adopts a spring 7 for buffering, the support plate 1 can rotate along the hinge block 3, and the support plate 1 can be adjusted in height in the vertical direction through the support rod 4 and the slider 5, so as to facilitate the support of the uneven tunnel top.

[0040] like Figure 1 As shown, as a preferred embodiment of the present invention, the lifting mechanism includes a movable block 13, a lifting ear 14, a traction rope 12 and a guide wheel 10. The other end of the telescopic rod 9 is slidably sleeved with a sleeve 11, and the side wall of the sleeve 11 is provided with a movable groove 112. The movable block 13 is slidably installed inside the movable groove 112. One end of the movable block 13 is fixedly connected to the telescopic rod 9, and the other end of the movable block 13 passes through the outside of the sleeve 11 and is connected to the lifting ear 14. The guide wheel 10 is horizontally installed on the outside of the sleeve 11, and one end of the traction rope 12 passes through the guide wheel 10 and is connected to the lifting ear 14. The traction rope 12 drives the lifting ear 14 to be lifted and lowered through the guide wheel 10, and the lifting ear 14 drives the telescopic rod 9 to move up and down. The lifting mechanism also includes a winding component for retracting and releasing the traction rope 12.

[0041] like Figure 1As shown, as a preferred embodiment of the present invention, the winding assembly includes a winding drum 19 for winding the traction rope 12, a rotating rod 20 fixedly connected to the winding drum 19, and a power member for driving the rotating rod 20 to rotate. The power member is driven by a transmission motor 18, and the transmission motor 18 drives the winding drum 19 to rotate through the rotating rod 20, thereby driving the traction rope 12 wound on the winding drum 19 to be wound.

[0042] like Figure 7 As shown, as a preferred embodiment of the present invention, the anti-fall mechanism includes a movable block 31 slidably mounted on the rotating rod 20, a limiting rod 33 mounted on the movable block 31, limiting plates 32 arranged at both ends of the winding drum 19, and a limiting block 34 with a limiting hole 341, the limiting block 34 is fixedly mounted on the partition 21, and a square groove 321 is provided on the limiting plate 32. The movable block 31 drives the limiting rod 33 to slide left and right, and the limiting rod 33 passes through the limiting plate 31 and enters the limiting hole 341. Through the cooperation of the limiting rod 33, the square groove 321 and the limiting block 34, the traction rope 12 wound on the winding drum 19 is prevented from loosening, causing the telescopic rod 9 to fall.

[0043] like Figure 6 As shown, as a preferred embodiment of the present invention, a protection box 17 is arranged outside the bottom plate 1, a partition 21 is horizontally arranged inside the protection box 17, and the rotating rod 20 is rotatably installed in the inner cavity of the protection box 17.

[0044] like Figure 5 As shown, as a preferred embodiment of the present invention, a movable groove 112 is opened on the side wall of the sleeve 11, and a threaded rod 15 is arranged inside the movable groove 112. One end of the threaded rod 15 passes through the movable groove 112 and is connected to the telescopic rod 9. The locking nut 16 is installed on the outside of the threaded rod 15 and cooperates with its thread. When the telescopic rod 9 rises to a suitable position, the locking nut 16 is tightened. The locking nut 16 connects the telescopic rod 9 and the sleeve 11 to each other through the threaded rod 15 to prevent the telescopic rod 9 from driving the support plate 1 to fall after the traction rope 12 breaks. The side wall of the sleeve 11 is provided with a scale line 113 for conveniently observing the descending height of the telescopic rod 9.

[0045] like Figure 1 As shown, as a preferred embodiment of the present invention, a reinforcing component for fixing the supporting device is also provided on the outside of the base plate 24.

[0046] like Figure 6As shown, as a preferred embodiment of the present invention, the reinforcement component includes a sliding plate 22 installed inside the protective box 1, a column 23 vertically installed on one side of the sliding plate 22, and a driving component for driving the sliding plate 22 to rise and fall. The side wall of the protective box 17 is provided with a sliding groove 171, the sliding plate 22 is slidably installed inside the sliding groove 171, the column 23 passes through the through hole 241 to the outside of the bottom plate 24, and the column 23 at the bottom of the sliding plate 22 contacts the ground of the tunnel to prevent the supporting device from shaking when in use.

[0047] like Figure 6 As shown, as a preferred embodiment of the present invention, the driving assembly includes a threaded sleeve 28 and a screw 27. The threaded sleeve 28 is rotatably installed inside the sliding plate 22, and the screw 27 is rotatably installed outside the base plate 24. The screw 27 passes through the threaded sleeve 28 and cooperates with its thread. The screw 27 is driven to rotate by the rocker 29, and the screw 27 drives the sliding plate 22 to move up and down along the sliding groove 171.

[0048] like Figure 1 As shown, as a preferred embodiment of the present invention, two connecting plates 25 are arranged at the bottom of the base plate 24, and universal wheels 26 are arranged at the bottom of the connecting plates 25, and the device can be moved by the universal wheels 26.

[0049] like Figure 1 As shown, as a preferred embodiment of the present invention, the support plate 1 is provided with an anti-slip groove 101 on the outside, and a protective net 2 for collecting fallen rocks and dust from above the tunnel is provided between the support plates 1, and the protective net 2 is made of elastic rope.

[0050] In one embodiment, the structure of the buffer is not limited, and an elastic rod can also be used for buffering. In this embodiment, preferably, refer to Figure 1 The buffer member uses a spring 7 to buffer the slider 5; the structure of the lifting mechanism is not limited, and the cylinder can also be used for lifting. In this embodiment, preferably, please refer to Figure 1 The lifting mechanism uses a traction rope 12 and a telescopic rod 9 to drive the lifting plate 8 to move; the structure of the power member is not limited, and the rocker can also be manually driven to rotate. In this embodiment, preferably, refer to Figure 1 The power member uses a transmission motor 18 to drive the winding drum 19 to rotate; the structure of the reinforcement component is not limited, and a cylinder can also be used to drive the reinforcement rod for support. In this embodiment, preferably, refer to Figure 1 The reinforcement assembly uses a lifting plate 22 to drive the column 23 to support the device.

[0051] In one embodiment, the structure of the connecting mechanism is not limited, and can also be connected by a spring. In this embodiment, preferably, refer to Figure 1 , the connecting mechanism is connected by a support rod 4 and a slider 5; the structure of the anti-falling mechanism is not limited, and a motor with a self-locking function may be connected to the winding drum 19 to prevent the winding drum 19 from rotating. In this embodiment, preferably, refer to Figure 1 The anti-fall mechanism uses a limit rod 33 and a limit plate 32 to limit the rotation of the winding drum 19; the structure of the lifting mechanism is not limited, and the cylinder can also be used to drive the lifting plate 8 to lift. In this embodiment, preferably, refer to Figure 1 The lifting mechanism uses a winding drum 19, a traction rope 12 and a telescopic rod 9 to drive the lifting plate 8 to move.

[0052] In one embodiment, the structure of the buffer is not limited, and an elastic rod can also be used for buffering. In this embodiment, preferably, refer to Figure 1 The buffer member uses a spring 7 to buffer the slider 5; the structure of the power member is not limited, and the rocker can also be rotated manually. In this embodiment, preferably, refer to Figure 1 The power member adopts a transmission motor 18 to drive the winding drum 19 to rotate;

[0053] The above-mentioned embodiment of the present invention provides a support device for tunnel construction, in which the tunnel top is supported by a support plate 1, and the support plate 1 supports the uneven top of the tunnel and can be adjusted according to the different structures of the tunnel. The protective net 2 can prevent falling rocks and dust from the top of the tunnel. The telescopic rod 9, the lifting plate 8 and the support plate 1 are lifted and lowered by the traction rope 12. The traction rope 12 is installed and disassembled conveniently. The anti-fall mechanism can prevent the support device from tipping over and falling during use, thereby increasing the safety of the device.

[0054] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A support device for tunnel construction, comprising a support plate, characterized in that: Also includes: A telescopic rod, which is connected to a support plate via a lifting plate provided at one end, and can drive the support plate to support the inner wall of the tunnel; A winding drum, the outside of which is wound with a traction rope, one end of which is connected to the telescopic rod and is used to drive the telescopic rod to move up and down; A connecting mechanism, installed outside the lifting plate, used to connect the lifting plate and the supporting plate; A lifting mechanism is installed outside the telescopic rod and drives the telescopic rod to move up and down by driving the winding drum to rotate; An anti-fall mechanism, connected to the lifting mechanism, capable of preventing the telescopic rod from falling by limiting the rotation of the winding drum; The connecting mechanism includes a slide rail, a slider and a support rod, the slide rail is fixedly connected to the lifting plate, the slider is slidably installed inside the slide rail and is rotatably connected to one end of the support rod, the other end of the support rod is hinged to the support plate, and a buffer for buffering is also provided between the slide rails; The lifting mechanism includes a movable block, a lifting lug and a guide wheel, the other end of the telescopic rod is slidably sleeved with a sleeve, the side wall of the sleeve is provided with a movable groove, the movable block is slidably installed inside the movable groove, one end of the movable block is fixedly connected to the telescopic rod, the other end of the movable block passes through the outside of the sleeve and is connected to the lifting lug, the guide wheel is horizontally installed outside the sleeve, one end of the traction rope passes through the guide wheel and is connected to the lifting lug, and the lifting mechanism also includes a winding assembly for retracting and releasing the traction rope; The winding assembly includes a rotating rod fixedly connected to both ends of the winding drum, and a power member for driving the rotating rod to rotate; The anti-falling mechanism comprises a movable block slidably mounted on the rotating rod, a limiting rod mounted on the movable block, limiting plates arranged at both ends of the winding drum, and a limiting block with a limiting hole.

2. The tunnel construction support device according to claim 1, characterized in that: A reinforcement component for fixing the supporting device is also arranged outside the sleeve.

3. The tunnel construction support device according to claim 2, characterized in that: The reinforcement component comprises a sliding plate installed inside the protection box, a column vertically installed on one side of the sliding plate, and a driving component for driving the sliding plate to rise and fall.

4. The tunnel construction support device according to claim 3, characterized in that: The driving assembly comprises a threaded sleeve and a screw rod. The threaded sleeve is rotatably mounted inside the sliding plate, and the screw rod is rotatably mounted outside the base plate. The screw rod passes through the threaded sleeve and is threadably matched with the threaded sleeve.

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