CN217327353U - A lift-type tunnel steel arch support device - Google Patents

Abstract

The utility model relates to the field of tunnel construction devices, in particular to an elevating type tunnel steel arch support device, one end of a lifting rod is fixedly arranged at two sides below a base, the other end of the lifting rod is provided with a stabilizing mechanism, the stabilizing mechanism comprises a sliding frame, two racks, a connecting block, a gear and a first rotating handle, the sliding frame is fixedly arranged at the other end of the lifting rod, the two racks are slidably arranged in the sliding frame, the connecting block is respectively and fixedly arranged at one end of the rack positioned at the outer side of the sliding frame, the gear is rotatably arranged in the sliding frame and is in meshed transmission with the racks at two sides, the first rotating handle penetrates through the sliding frame and is fixedly connected with the gear, and a pointed cone is fixedly arranged below the connecting block, when the steel arch is erected, the device can not only replace the manual steel arch support, but also is convenient for adjusting the erected height, the labor expenditure burden is greatly reduced, and meanwhile, no matter when the soft and hard ground is faced, the device can be well contacted with the ground to bear force, thereby ensuring the stability of the device and the steel arch frame.

Description

A lift-type tunnel steel arch support device

technical field

The utility model relates to the field of tunnel construction devices, in particular to a lift-type tunnel steel arch support device.

Background technique

At present, the installation of the steel arch for initial support of the tunnel relies on the construction workers to lift and lift with their hands and shoulders. However, because the steel arch is very heavy and the space inside the tunnel is small, the construction speed is inherently slow. Slow, low installation efficiency of steel arches, and long-term erection of construction personnel, not only the labor intensity is greatly increased, but also the connection of adjacent steel arches is not aligned during installation, which is easy to cause steel arches to slide down and cause safety accidents. In some tunnels that encounter weak structural surfaces, such as faults, weak interlayers, etc., generally three steps and the reserved annular core soil method are used for construction. However, the construction work surface of the upper steps is too narrow, and large-scale mechanical equipment cannot be used for operation. When the steel arch is installed, it needs to be lifted manually. First, roughly locate the installation position of the steel arch, and then let a large number of workers lift it up, and then continue to make slight adjustments. This is not only low in accuracy, but also easy to increase the labor intensity. There is a problem, and a lift-type tunnel steel arch support device is proposed.

Utility model content

The purpose of the utility model is to propose a lifting type tunnel steel arch support device in order to solve the shortcomings of the prior art that the artificial lifting steel arch has potential safety hazards and low installation accuracy.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A lift-type tunnel steel arch support device is designed, which includes a base on which a fixing block is fixedly installed, and further includes:

Lifting rod, one end of the lifting rod is fixedly installed on both sides under the base, the other end of the lifting rod is installed with a stabilization mechanism, the stabilization mechanism includes a sliding frame, two racks, a connecting block, a gear, a first Turning handle, the sliding frame is fixedly installed on the other end of the lifting rod, the two racks are slidably installed in the sliding frame, and the connecting blocks are respectively fixedly installed on the rack outside the sliding frame At one end, the gear is rotatably installed in the sliding frame and is engaged with the racks on both sides for transmission. The first turning handle is fixedly connected to the gear through the sliding frame, and is fixedly installed below the connecting block. Has a pointed cone.

Preferably, it also includes a support mechanism, the support mechanism includes a lift rod and a first suction cup, the lift rod penetrates the base and the fixing block and is threadedly connected with the base and the fixing block, The first suction cup is fixedly mounted on the lower end of the support rod.

Preferably, it also includes a clamping mechanism, the clamping mechanism is installed on the fixing block, and a chute is opened in the fixing block, and the clamping mechanism includes a rotating base, a two-way screw, two sliding blocks, A placing rack, the rotating base is symmetrically and fixedly installed on both sides above the fixed block, the two-way screw is rotatably installed in the middle of the rotating base, and the two sliding blocks are symmetrically slidably installed in the chute and The threaded section is connected to the upper thread section of the bidirectional screw rod, and the placing bracket is fixedly installed in the middle of the upper surface of the fixing block.

Preferably, a second turning handle is fixedly installed at one end of the two-way screw located on the outer side of the rotating base, and a driving motor is installed inside the side of the fixing block away from the second turning handle, and the output shaft of the driving motor is connected to the The other end of the two-way screw is connected with a drive.

Preferably, it also includes a fixing mechanism, the fixing mechanism is installed on the sliding block, and the fixing mechanism includes a driving gear, a rotating shaft, a vertical plate, a stopper, a transmission gear, a suction cup rod, and a second suction cup. The gears are respectively rotatably installed in the sliding block and are threadedly connected with the two-way screw thread segments, the rotating shaft is fixedly installed on the driving gear and rotates through the sliding block and extends to the outside, and the vertical plates are respectively fixedly installed On the slider, the limiting member is fixedly installed on the outer side of the vertical plate, the transmission gear is fixedly installed on the rotating shaft and rotates in the limiting member, and the outer wall of the suction cup rod is provided with an outer surface. thread, the suction cup rod is rotatably installed in the limiting member and is connected with the transmission gear, and the second suction cup is fixedly installed at one end of the inner side of the suction cup rod.

The lift-type tunnel steel arch support device proposed by the utility model has the following beneficial effects:

By setting the base, the fixing block, the lifting rod and the stabilizing mechanism, when the steel arch is erected, the device can not only replace the manual support of the steel arch, but also facilitate the adjustment of the erection height, greatly reducing the burden of manpower expenditure. For soft and hard ground, the device can be well contacted with the ground to receive force, thus ensuring the stability of the device and the steel arch.

Description of drawings

FIG. 1 is a schematic view of the front structure of a lift-type tunnel steel arch support device proposed by the utility model.

Fig. 2 is a schematic side view of the structure of a lift-type tunnel steel arch support device proposed by the utility model.

FIG. 3 is a schematic cross-sectional structural schematic diagram of a side view of a lift-type tunnel steel arch support device proposed by the utility model.

FIG. 4 is a schematic diagram of the front cross-sectional structure of a lift-type tunnel steel arch support device proposed by the utility model.

FIG. 5 is a schematic bottom view of a lift-type tunnel steel arch support device proposed by the utility model.

6 is a schematic structural diagram of a stabilization mechanism of a lift-type tunnel steel arch support device proposed by the utility model.

In the figure: base 1, fixing block 2, chute 21, lifting rod 3, stabilization mechanism 4, sliding frame 41, rack 42, connecting block 43, gear 44, first turning handle 45, cone 46, support mechanism 5. Lifting rod 51, first suction cup 52, clamping mechanism 6, rotating base 61, bidirectional screw 62, slider 63, placing rack 64, second turning handle 65, driving motor 66, fixing mechanism 7, driving gear 71. The rotating shaft 72, the vertical plate 73, the limiter 74, the transmission gear 75, the suction cup rod 76, the second suction cup 77, the auxiliary mechanism 8, the connecting screw 81, and the connecting side plate 82.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Example 1

1-6, a lift-type tunnel steel arch support device includes a base 1 on which a fixing block 2 is fixedly installed, and further includes:

Lifting rod 3, one end of lifting rod 3 is fixedly installed on both sides under base 1, and the other end of lifting rod 3 is installed with stabilizing mechanism 4, which includes sliding frame 41, two racks 42, connecting block 43, gear 44, The first turning handle 45, the sliding frame 41 is fixedly installed on the other end of the lifting rod 3, the two racks 42 are slidably installed in the sliding frame 41, the connecting blocks 43 are respectively fixedly installed on the outer end of the rack 42 at the outer side of the sliding frame 41, the gear 44 It is rotatably installed in the sliding frame 41 and is engaged with the racks 42 on both sides for transmission. The first turning handle 45 penetrates the sliding frame 41 and is fixedly connected to the gear 44. A sharp cone 46 is fixedly installed under the connecting block 43. Upright, turn the first turning handle 45 and the gear 44 according to the terrain and soil conditions, drive the rack 42 and the connecting block 43 to move towards each other, thereby adjusting the distance between the adjacent sharp cones 46, insert the sharp cones 46 into the ground at this time, to stabilize.

Also includes a support mechanism 5, the support mechanism 5 includes a lift rod 51 and a first suction cup 52, the lift rod 51 penetrates the base 1 and the fixing block 2 and is threadedly connected with the base 1 and the fixing block 2, and the first suction cup 52 is fixedly installed At the lower end of the lift rod 51, a support mechanism 5 is provided, so that when the support rod 51 is erected on a hard and smoother ground, the lift rod 51 is rotated to make it descend, and the first suction cup 52 is used to absorb the ground to limit the position of the device, so as to prevent the device from being subjected to external force slide.

It also includes a clamping mechanism 6. The clamping mechanism 6 is installed on the fixed block 2. The fixed block 2 is provided with a chute 21. The clamping mechanism 6 includes a rotating base 61, a two-way screw 62, two sliders 63, and a placement rack. 64. The rotating base 61 is symmetrically and fixedly installed on both sides of the top of the fixed block 2, the two-way screw 62 is rotated and installed in the middle of the rotating base 61, and the two sliders 63 are symmetrically slidably installed in the chute 21 and are threadedly connected to the two-way screw 62. In the threaded section, the placing frame 64 is fixedly installed in the middle of the upper surface of the fixing block 2, and a clamping mechanism 6 is provided, which can clamp and fix the steel arch to avoid safety accidents caused by the slipping of the steel arch. The two-way screw 62 is located outside the rotating base 61. A second turning handle 65 is fixedly installed at one end, a drive motor 66 is installed inside the side of the fixing block 2 away from the second turning handle 65, and the output shaft of the driving motor 66 is connected to the other end of the bidirectional screw 62 in a transmission manner, and the steel arch is placed on the placing rack. 64, rotate the two-way screw 62 to move the slider 63 threadedly connected with the threaded sections on both sides of the slider 63 toward each other. At the same time, since the slider 63 slides in the chute 21, it can keep moving horizontally. A second turning handle 65 is provided to drive the The motor 66 can not only use the driving motor 66 to quickly adjust the moving speed of the slider 63, but also manually turn the second knob 65 to adjust when the driving motor 66 has no power supply.

By setting the base 1, the fixing block 2, the lifting rod 3, and the stabilizing mechanism 4, when the steel arch is erected, the device can not only replace the manual support of the steel arch, but also facilitate the adjustment of the erection height, greatly reducing the burden of manpower expenditure. At the same time, no matter facing the soft or hard ground, the device can be well contacted with the ground to receive force, so as to ensure the stability of the device and the steel arch.

Example 2

According to Embodiment 1, in Embodiment 1, when the steel arch frame is erected, the use of this device can not only replace the manual support of the steel arch frame, but also facilitate the adjustment of the erection height, which greatly reduces the burden of manpower expenditure. The device can be well in contact with the ground and receive force, thus ensuring the stability of the device and the steel arch. However, when the steel arch is clamped, it cannot be fixed well, and the steel arch is easy to slip off. 1-6, as another preferred embodiment of the present invention, on the basis of Embodiment 1, a fixing mechanism 7 is further included.

The fixing mechanism 7 is installed on the slider 63, and the fixing mechanism 7 includes a driving gear 71, a rotating shaft 72, a vertical plate 73, a limiter 74, a transmission gear 75, a suction cup rod 76, and a second suction cup 77. The driving gear 71 is rotated and installed on the The sliding block 63 is threadedly connected with the threaded section of the bidirectional screw 62. The rotating shaft 72 is fixedly installed on the driving gear 71 and rotates through the sliding block 63 and extends to the outside. The vertical plates 73 are respectively fixed on the sliding block 63, and the limiter 74 is fixed Installed on the outer side of the vertical plate 73, the transmission gear 75 is fixedly installed on the rotating shaft 72 and rotates in the limiter 74, the outer wall of the suction cup rod 76 is provided with an external thread, and the suction cup rod 76 is rotatably installed in the limiter 74 and is connected with the transmission gear 75. Transmission connection, the second suction cup 77 is fixedly installed on the inner end of the suction cup rod 76. When the steel arch frame needs to be clamped and fixed, the two-way screw 62 rotates to drive the slider 63 to move, and also drives the drive gear 71, the rotating shaft 72 and the The transmission gear 75 rotates synchronously, so as to drive the two suction cup rods 76 to slide toward each other, thereby attracting the second suction cup 77 to the surface of the steel arch to avoid slipping.

Working principle: when using, first erect the device, turn the first turning handle 45 and the gear 44 according to the terrain and soil conditions, drive the rack 42 and the connecting block 43 to move towards each other, so as to adjust the distance between the adjacent sharp cones 46, At this time, insert the sharp cone 46 into the ground to stabilize it. When erecting on a hard and smooth ground, rotate the lifting rod 51 to lower it, and use the first suction cup 52 to absorb the ground to limit the device to prevent the device from sliding by external force. , place the steel arch on the placing frame 64, turn the two-way screw 62 to move the slider 63 threadedly connected with the threaded sections on both sides of it to move toward each other, and at the same time, because the slider 63 slides in the chute 21, it can keep moving horizontally , setting the second turning handle 65 and the driving motor 66, not only can the driving motor 66 be used to quickly adjust the moving speed of the slider 63, but also when the driving motor 66 has no power supply, the second turning handle 65 can be manually manually rotated for adjustment. When the steel arch is clamped and fixed, the two-way screw 62 rotates to drive the slider 63 to move, and also drives the drive gear 71, the rotating shaft 72 and the transmission gear 75 to rotate synchronously, so as to drive the two sucker rods 76 The second suction cup 77 is adsorbed on the surface of the steel arch to avoid slipping.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. A lift-type tunnel steel arch support device, comprising a base (1) on which a fixing block (2) is fixedly installed, characterized in that it also includes: A lift rod (3), one end of the lift rod (3) is fixedly installed on both sides below the base (1), and a stabilization mechanism (4) is installed at the other end of the lift rod (3), and the stabilization mechanism ( 4) Including a sliding frame (41), two racks (42), a connecting block (43), a gear (44), and a first turning handle (45), the sliding frame (41) is fixedly installed on the lifting rod (3) At the other end, the two racks (42) are slidably installed in the sliding frame (41), and the connecting blocks (43) are respectively fixedly installed on the racks (42) located in the sliding frame (41) At one end of the outer side, the gear (44) is rotatably installed in the sliding frame (41) and meshes with the racks (42) on both sides for transmission, and the first turning handle (45) penetrates the The sliding frame (41) is fixedly connected with the gear (44), and a sharp cone (46) is fixedly installed under the connecting block (43). 2 . The lifting-type tunnel steel arch support device according to claim 1 , further comprising a support mechanism (5), wherein the support mechanism (5) comprises a lift rod (51), a first suction cup. 3 . (52), the support rod (51) penetrates the base (1) and the fixing block (2) and is threadedly connected with the base (1) and the fixing block (2), and the The first suction cup (52) is fixedly mounted on the lower end of the lift rod (51). 3. A lift-type tunnel steel arch support device according to claim 1, characterized in that it further comprises a clamping mechanism (6), and the clamping mechanism (6) is mounted on the fixing block (2) On the upper side, the fixed block (2) is provided with a chute (21), and the clamping mechanism (6) includes a rotating base (61), a two-way screw (62), two sliding blocks (63), and a placing frame (64), the rotating base (61) is symmetrically and fixedly installed on both sides above the fixing block (2), the two-way screw (62) is rotatably installed in the middle of the rotating base (61), and the two The sliding block (63) is symmetrically slidably installed in the chute (21) and is threadedly connected to the threaded section on the two-way screw (62), and the placing bracket (64) is fixedly installed on the fixing block (2) middle of the upper surface. 4. A lift-type tunnel steel arch support device according to claim 3, characterized in that, a second turning handle ( 65), a drive motor (66) is installed inside the side of the fixing block (2) away from the second turning handle (65), and the output shaft of the drive motor (66) is connected to the other end of the bidirectional screw (62). drive connection. 5. A lift-type tunnel steel arch support device according to claim 4, characterized in that it further comprises a fixing mechanism (7), and the fixing mechanism (7) is mounted on the sliding block (63), The fixing mechanism (7) includes a driving gear (71), a rotating shaft (72), a vertical plate (73), a limiter (74), a transmission gear (75), a suction cup rod (76), and a second suction cup (77) , the driving gear (71) is respectively rotatably installed in the sliding block (63) and is threadedly connected with the threaded section of the bidirectional screw (62), and the rotating shaft (72) is fixedly installed on the driving gear (71) The vertical plates (73) are respectively fixedly installed on the sliding blocks (63), and the limiting members (74) are fixedly installed on the vertical plates. (73) Outside, the transmission gear (75) is fixedly installed on the rotating shaft (72) and rotates in the limiter (74), the outer wall of the suction cup rod (76) is provided with an external thread, the The suction cup rod (76) is rotatably installed in the limiting member (74) and is drivingly connected with the transmission gear (75), and the second suction cup (77) is fixedly installed on the inner end of the suction cup rod (76).

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