CN219507467U

CN219507467U - Hoisting mechanism for tunnel construction trestle

Info

Publication number: CN219507467U
Application number: CN202320911228.0U
Authority: CN
Inventors: 孙向东; 廖立勋; 裴王瑜; 韩昊阳
Original assignee: CCCC Second Highway Engineering Co Ltd
Current assignee: CCCC Second Highway Engineering Co Ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-08-11
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a hoisting mechanism for a tunnel construction trestle, which comprises: the support rod is horizontally arranged, two sliding blocks are sleeved on the support rod, the bottom of each sliding block is fixedly connected with a U-shaped hanging bracket with a downward opening, each U-shaped hanging bracket comprises two hanging arms, each hanging arm is connected with an L-shaped hanging rod, and the horizontal parts of the two L-shaped hanging rods on the same U-shaped hanging bracket are opposite; also comprises a controller; the inner side surface of each suspension arm is provided with a driving chamber, a downward-piston rod electric telescopic rod is arranged in the driving chamber, and the four electric telescopic rods are electrically connected with the controller. The hoisting mechanism has the advantages that the hoisting mechanism can be suitable for trestle bridges with different lengths and different widths to finish hoisting operation by rotating the threaded sleeve and the poking wheel, so that the practicability and the safety reliability of the hoisting mechanism are improved, the pressing plate is further driven by the electric telescopic rod to downwards press the trestle bridge, and the safety in the hoisting process is ensured.

Description

Hoisting mechanism for tunnel construction trestle

Technical Field

The utility model relates to the field of hoisting mechanisms, in particular to a hoisting mechanism for a tunnel construction trestle.

Background

Trestle is mainly used for passersby, transportation vehicles etc.. In tunnel construction, the trestle is the crossing equipment that the transportation of pedestrian, hole sediment transport vehicle, concrete transport vehicle, material transportation equipment are passed in the inverted arch or the bottom plate work progress in order to be convenient for.

Chinese patent discloses a hoisting machine constructs for tunnel construction landing stage (grant bulletin number CN 211004190U), and this patent relates to including landing stage, U-shaped gallows and dead lever, the landing stage outside is equipped with U-shaped gallows, and U-shaped gallows top is connected with the dead lever, and the dead lever is kept away from the one end rotation of U-shaped gallows and is connected with the movable lever, the welding has the lug on the dead lever, fixedly connected with wire rope on the lug, U-shaped gallows lower extreme is equipped with the jack, the backup pad is equipped with in the jack interpolation, U-shaped gallows sets up into the U-shaped, and movable hole has been seted up at U-shaped gallows top middle part, and the movable hole cartridge has the dwang, and the dwang runs through the dead lever, and the dwang rotates the connection dead lever, and during the U-shaped gallows passes through the dwang rotatable, makes things convenient for the staff to block U-shaped gallows outside the landing stage, rotates through the dead lever, and the distance between the adjustable dead lever realizes the distance adjustment between two U-shaped gallows, is fit for landing stage hoist and mount use of different length. However, this mechanism needs to rotate the lead screw for the punch holder is tight with landing stage upper end clamp, rotates the side lead screw, makes the side splint press from both sides the landing stage side clamp, just can realize the fixed operation of landing stage, and manual rotation is gone up lead screw and the fixed landing stage of side lead screw and is not only increased artificial operating quantity and has the problem slow to landing stage fixed efficiency, need rotate the dismantlement operation of going up lead screw and side lead screw completion landing stage again after the hoist and mount is accomplished, complex operation, complicacy, the practicality is lower.

Authorized bulletin number ^CN213865044U The Chinese patent discloses a hoisting mechanism for tunnel construction trestle, adopts horizontal pole and sliding block of sliding connection on the horizontal pole to realize length adjustment in this mechanism, but the removal of its sliding block just can be adjusted through horizontal application pulling force completely, and its in-process that removes easily moves more or moves less, therefore the location is inaccurate. The mechanism also adjusts the distance between the two sliding sleevesThe width of the hanging trestle is adapted, but the limit of the sliding sleeve is realized by clamping in the limiting groove body, but the limit of the limiting groove body can only be spot-shaped, or the limiting groove body is moved by one groove distance more or one groove distance less, so that the width adjustment of the limiting groove body cannot be completely adapted to all trestle sizes, and the reliability of the limiting groove body is not high.

Authorized bulletin number ^CN213622991U The Chinese patent discloses a special lifting device for a tunnel construction trestle, which adopts an upright post and a lifting rod arranged at the top end of the upright post to lift the trestle, is cantilever type lifting, has poor stability and is easy to swing in the lifting process, so that the risk is higher.

Therefore, a trestle hoisting device with quick clamping, good fixing and high safety is needed.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a hoisting mechanism for a tunnel construction trestle, which aims to solve the technical problems of complicated operation, low efficiency and high risk of manually clamping the trestle in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme.

Hoisting mechanism for tunnel construction landing stage includes: the support rod is horizontally arranged, two sliding blocks are sleeved on the support rod, the bottom of each sliding block is fixedly connected with a U-shaped hanging frame with a downward opening, each U-shaped hanging frame comprises two hanging arms, each hanging arm is connected with an L-shaped hanging rod, and the horizontal parts of the two L-shaped hanging rods on the same U-shaped hanging frame are oppositely arranged; also comprises a controller; the inner side surface of each suspension arm is provided with a driving chamber, an electric telescopic rod with a downward piston rod is arranged in the driving chamber, a cylinder body of the electric telescopic rod is fixedly connected with the driving chamber, and a pressing plate is connected to the piston rod of the electric telescopic rod; the four electric telescopic rods are electrically connected with the controller; the L-shaped suspenders and the four pressing plates are used for clamping trestle;

further, a bidirectional threaded rod is rotatably connected between the two suspension arms of each U-shaped suspension frame, and one end of the bidirectional threaded rod extends out of the suspension arms on the same side and is connected with a poking wheel; the U-shaped lifting frame is characterized in that a limited rotating rod is further connected between two lifting arms of the U-shaped lifting frame, a screw hole matched with the two-way threaded rod is formed in the upper end of each L-shaped lifting rod, a through hole matched with the limited rotating rod is formed in the middle of each L-shaped lifting rod, the upper ends of the L-shaped lifting rods are in threaded connection with the two-way threaded rod, and the middle of each L-shaped lifting rod is in sliding connection with the limited rotating rod through the through hole.

Further, threaded rods aligned with each other are respectively arranged on opposite side surfaces of the two sliding blocks, the directions of threads of the two threaded rods are opposite, one ends of the two threaded rods, which are close to each other, are connected through threaded sleeves, and screw holes at two ends of the threaded sleeves are matched with the two threaded rods.

Further, the threaded rods on each sliding block are two, and are respectively positioned at the front side and the rear side of the supporting rod.

Furthermore, the top of two the sliding blocks is hinged with a connecting rod, one end of each connecting rod, far away from the sliding block, is hinged with a fixing plate, and the top of each fixing plate is fixedly connected with a lifting ring.

Further, two limiting plates are fixedly connected to two ends of the supporting rod.

Further, the cross section of the threaded sleeve is square.

The utility model has the technical effects and advantages that:

1. the electric telescopic rod drives the pressing plate to downwards press the trestle, so that the rapid fixing operation of the trestle is completed better, the fixing effect of the trestle during hoisting is improved, the trestle is prevented from falling off due to unstable fixation, and the safety of the hoisting mechanism is improved;

2. the turning thumb wheel drives the bidirectional threaded rod to rotate, the two L-shaped suspenders are driven to move back and forth through the rotation of the bidirectional threaded rod, and the two L-shaped suspenders move back and forth to better finish the adjustment operation of the distance between the two L-shaped suspenders, so that the lifting mechanism is suitable for trestle bridges with different widths to finish lifting operation, and the practicability of the lifting mechanism is improved;

3. the two threaded rods are driven to extend or shrink through the rotating threaded sleeve, the corresponding sliding blocks are driven to move left and right through the extending or shrinking of the two threaded rods, the U-shaped hanging frames are driven to move left and right through the moving of the U-shaped hanging frames, the distance between the two U-shaped hanging frames is adjusted, and accordingly the lifting operation is completed for trestle bridges with different lengths, and the lifting device is simple and quick to operate.

Drawings

FIG. 1 is a perspective view of one embodiment of a hoisting mechanism for a tunnel construction trestle of the present utility model;

FIG. 2 is an elevation view of one embodiment of a lifting mechanism for a tunnel construction trestle of the present utility model;

FIG. 3 is a side cross-sectional view of a U-shaped hanger, L-shaped boom and drive chamber of another embodiment of a hoisting mechanism for a tunnel construction trestle of the present utility model;

fig. 4 is an enlarged view at a in fig. 3 provided by an embodiment of the present utility model.

In the figure: 1. a support rod; 2. a slide block; 3. a thumb wheel; 4. an L-shaped boom; 5. trestle bridge; 6. a U-shaped hanger; 7. a limiting plate; 8. a connecting rod; 9. a threaded rod; 10. a fixing plate; 11. a hoisting ring; 12. a threaded sleeve; 13. a two-way threaded rod; 14. a rotation limiting rod; 15. a driving chamber; 16. an electric telescopic rod; 17. and (5) pressing plates.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Embodiment 1, with reference to fig. 1 and 2, a hoisting mechanism for a tunnel construction trestle includes: the support rod 1 is horizontally arranged, two sliding blocks 2 are sleeved on the support rod 1, the bottom of each sliding block 2 is fixedly connected with a U-shaped hanging bracket 6 with a downward opening, each U-shaped hanging bracket 6 comprises two suspension arms, each suspension arm is connected with an L-shaped hanging rod 4, and the horizontal parts of the two L-shaped hanging rods 4 on the same U-shaped hanging bracket 6 are oppositely arranged; also comprises a controller; the inner side surface of each suspension arm is provided with a driving chamber 15, an electric telescopic rod 16 with a downward piston rod is arranged in the driving chamber 15, a cylinder body of the electric telescopic rod 16 is fixedly connected with the driving chamber 15, and a pressing plate 17 is connected to the piston rod of the electric telescopic rod 16; the four electric telescopic rods 16 are electrically connected with the controller; the four L-shaped suspenders 4 and the four pressing plates 17 are used for clamping the trestle 5. Referring to fig. 4, in this embodiment, a driving chamber 15 is installed inside the L-shaped boom 4 of each U-shaped boom 6, and an electric telescopic rod 16 is installed in the driving chamber 15, when the trestle 5 is placed on the four L-shaped booms 4, the trestle 5 can be quickly fixed by controlling the extension of the piston rods of the four electric telescopic rods 16, and when the trestle 5 is unloaded, the trestle 5 can be released by controlling the contraction of the piston rods of the four electric telescopic rods 16. The electric telescopic rod 16 is adopted to replace manual work, so that the safety and the high efficiency are realized.

In the embodiment 2, referring to fig. 1 to 3, a bidirectional threaded rod 13 is rotatably connected between two suspension arms of each U-shaped suspension frame 6, and a thumb wheel 3 is connected after one end of the bidirectional threaded rod 13 extends out of the suspension arms on the same side; a limited rotating rod 14 is further connected between the two suspension arms of each U-shaped suspension frame 6, a screw hole matched with the two-way threaded rod 13 is formed in the upper end of each L-shaped suspension rod 4, a through hole matched with the limited rotating rod 14 is formed in the middle of each L-shaped suspension rod, the upper end of each L-shaped suspension rod 4 is in threaded connection with the two-way threaded rod 13, and the middle of each L-shaped suspension rod 4 is in sliding connection with the limited rotating rod 14 through the through hole. In this embodiment, the distance between the two L-shaped suspenders 4 on each U-shaped suspending frame 6 can be controlled by the bidirectional threaded rod 13, so that the device is suitable for trestle 5 with more width dimensions. The embodiment adopts a screw-nut mechanism, specifically, the screw is rotated while the nut is limited to rotate, and the nut moves along the screw.

In embodiment 3, referring to fig. 1 to 3, in this embodiment, two mutually aligned threaded rods 9 are respectively disposed on opposite sides of two sliders 2, the directions of threads of the two threaded rods 9 are opposite, one ends of the two threaded rods 9, which are close to each other, are connected through a threaded sleeve 12, and screw holes at two ends of the threaded sleeve 12 are matched with the two threaded rods 9. In this embodiment, by controlling the distance between the two sliding blocks 2, the device can adapt to trestle 5 with more length sizes. The embodiment still adopts a screw-nut mechanism, specifically, the screw is controlled to rotate while the nut rotates, and the screw moves.

Embodiment 4, referring to fig. 1, in this embodiment, there are two threaded rods 9 on each slider 2, respectively located on the front side and the rear side of the support rod 1. In this embodiment, two pairs of threaded rods 9 are adopted, so that the stress is more uniform.

In embodiment 5, referring to fig. 1 and 2, in this embodiment, the top of two sliders 2 are hinged with connecting rods 8, one ends of the two connecting rods 8 far away from the sliders 2 are hinged with a fixing plate 10, and the top of the fixing plate 10 is fixedly connected with a lifting ring 11. In this embodiment, a connecting rod 8 is provided at the top of two sliders 2.

In embodiment 6, referring to fig. 3, two limiting plates 7 are fixedly connected to two ends of the supporting rod 1. By providing the limiting plate 7, the slider 2 can be prevented from being excessively moved and falling to cause danger.

In example 7, the cross section of the threaded sleeve 12 is square. In order to save labor when the threaded sleeve is rotated, a square section is machined on the threaded sleeve or a square cylinder is adopted, so that the wrench is convenient to clamp.

The working principle of the utility model is as follows: the threaded sleeve 12 is rotated to drive the two threaded rods 9 to approach or separate from each other, the corresponding sliding blocks 2 are driven to move left and right through the approach or separate from each other of the two threaded rods 9, the U-shaped hanging frame 6 is driven to move through the left and right movement of the two sliding blocks 2, and the adjustment operation of the distance between the two U-shaped hanging frames 6 is better completed through the left and right movement of the U-shaped hanging frame 6, so that the threaded sleeve is suitable for trestle 5 with different lengths, and the operation process is simple and quick and can adjust any length. The turning thumb wheel 3 drives the bidirectional threaded rod 13 to rotate, and the two L-shaped suspenders 4 are driven to approach or depart through the rotation of the bidirectional threaded rod 13, so that the two L-shaped suspenders are suitable for trestle 5 with different widths, and the operation process is simple and quick, and can adjust any width. This device can adjust arbitrary length and width according to landing stage size, has improved this hoist mechanism's application scope, drives clamp plate 17 through electric telescopic handle 16 simultaneously and compresses tightly landing stage 5 downwards, and the quick fixed operation of better completion landing stage 5 improves the fixed effect when landing stage 5 hoist and mount, prevents that landing stage 5 is fixed infirm and causes the drop of landing stage 5, has improved this hoist mechanism's security, then is convenient for use external lifting device to accomplish the hoist and mount operation of landing stage 5 through hoist and mount ring 11.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. Hoisting mechanism for tunnel construction landing stage, its characterized in that includes: the support rod (1) is horizontally arranged, two sliding blocks (2) are sleeved on the support rod (1), the bottom of each sliding block (2) is fixedly connected with a U-shaped hanging frame (6) with a downward opening, each U-shaped hanging frame (6) comprises two hanging arms, each hanging arm is connected with an L-shaped hanging rod (4), and the horizontal parts of the two L-shaped hanging rods (4) on the same U-shaped hanging frame (6) are oppositely arranged;

also comprises a controller; the inner side surface of each suspension arm is provided with a driving chamber (15), an electric telescopic rod (16) with a downward piston rod is arranged in the driving chamber (15), a cylinder body of the electric telescopic rod (16) is fixedly connected with the driving chamber (15), and a pressing plate (17) is connected to the piston rod of the electric telescopic rod (16); the four electric telescopic rods (16) are electrically connected with the controller; the four L-shaped suspenders (4) and the four pressing plates (17) are used for clamping the trestle (5).

2. The hoisting mechanism for the tunnel construction trestle according to claim 1, characterized in that a bidirectional threaded rod (13) is rotatably connected between two suspension arms of each U-shaped suspension bracket (6), and a poking wheel (3) is connected after one end of the bidirectional threaded rod (13) extends out of the suspension arms on the same side; the two suspension arms of each U-shaped suspension bracket (6) are connected with a limited rotating rod (14) respectively, the upper end of each L-shaped suspension rod (4) is provided with a screw hole matched with the two-way threaded rod (13), the middle part of each L-shaped suspension rod is provided with a through hole matched with the limited rotating rod (14), the upper end of each L-shaped suspension rod (4) is in threaded connection with the two-way threaded rod (13), and the middle part of each L-shaped suspension rod (4) is in sliding connection with the limited rotating rod (14) through the through hole.

3. The hoisting mechanism for the tunnel construction trestle according to claim 2, characterized in that threaded rods (9) aligned with each other are respectively arranged on opposite side surfaces of the two sliding blocks (2), the threaded directions of the two threaded rods (9) are opposite, one ends, close to the two threaded rods (9), of the two threaded rods are connected through threaded sleeves (12), and screw holes at two ends of the threaded sleeves (12) are matched with the two threaded rods (9).

4. A hoisting mechanism for a tunnel construction trestle according to claim 3, characterized in that two threaded rods (9) are arranged on each slide block (2) and are respectively positioned at the front side and the rear side of the support rod (1).

5. The hoisting mechanism for tunnel construction trestle according to claim 4, characterized in that the tops of two sliding blocks (2) are hinged with connecting rods (8), one ends of the two connecting rods (8) far away from the sliding blocks (2) are hinged with fixing plates (10), and the tops of the fixing plates (10) are fixedly connected with hoisting rings (11).

6. The hoisting mechanism for the tunnel construction trestle according to claim 5, wherein two limiting plates (7) are fixedly connected to two ends of the supporting rod (1).

7. Hoisting mechanism for tunnel construction trestle according to claim 6, characterized in that the cross section of said threaded sleeve (12) is square.