A hoisting device for highway construction

Abstract

The present invention relates to the technical field of lifting devices, and specifically relates to a lifting device for highway construction, including a chassis and a lifting boom. The upper surface of the chassis is fixedly connected with an inverted L-shaped frame, and the upper surface of the inverted L-shaped frame is fixedly connected with a boom. One side wall of the boom is fixedly connected with the lifting boom. An annular groove is formed on the upper surface of the chassis, and a placing plate is arranged above the annular groove. A plurality of retaining rods are fixedly connected to the upper surface of the placing plate. In the present invention, by arranging the placing plate, when the device is in use, the guardrail plates can be stacked on the placing plate. In this way, when the device is in use, multiple guardrail plates can be transported at one time. When installing the guardrail plates, after installing one guardrail plate, there is no need to push the device back. Instead, the guardrail plates on the placing plate can be directly lifted to carry out the installation of the next one, thereby avoiding the time-consuming and laborious problem of pushing the lifting device back and forth, and improving the installation efficiency of the guardrail plates.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and particularly to a lifting device for road construction. Background Art

[0002] In road construction, after the road surface is built, guardrails need to be installed on both sides. When installing the guardrail plates, first mark the positions on both sides of the road, dig holes and place the columns into the holes. After adjusting their verticality and horizontal positions, tamp them. Then, move the guardrail plates to the side of the columns and fix them to the columns using bolts and nuts. Through holes are provided on the side walls of both the columns and the guardrail plates for the bolts to pass through.

[0003] However, during the installation process, manually lifting the guardrail plates is not only laborious but also difficult to maintain stability. Therefore, a lifting device is usually used to lift the guardrail plates. The existing lifting devices can only lift one guardrail plate at a time. After installing one plate, the lifting device needs to be pushed back to lift the next one. This way of pushing the lifting device back and forth is time-consuming and laborious, reducing the installation efficiency of the guardrail plates. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention proposes a lifting device for road construction.

[0005] To achieve the above object, the present invention provides the following technical solution: A lifting device for road construction, including a chassis and a lifting boom. The upper surface of the chassis is fixedly connected with an inverted L-shaped frame, and the upper surface of the inverted L-shaped frame is fixedly connected with a boom. One side wall of the boom is fixedly connected with the lifting boom. The upper surface of the chassis is provided with an annular groove, and a placement plate is arranged above the annular groove. The upper surface of the placement plate is fixedly connected with a plurality of blocking rods. A slider is arranged below the placement plate, and the slider is slidably connected with the inner wall of the annular groove. A clamping groove is opened on the lower surface of the slider, and a roller is arranged in the clamping groove. The roller is in contact with the bottom of the annular groove. A cavity is opened inside the placement plate, and a material pushing component is arranged in the cavity. A through hole is opened on the upper surface of the placement plate, and one end of the material pushing component passes through the through hole and extends to the outside of the cavity.

[0006] Preferably, the material pushing component includes a mounting block fixedly connected with the inner wall of the cavity. One side wall of the mounting block is rotatably connected with a rotating shaft. A magnetic wave rod is fixedly connected to the outer wall of the rotating shaft, and one end of the magnetic wave rod passes through the through hole and extends to the outside of the cavity. A wave rod driving connecting piece is arranged in the cavity.

[0007] Preferably, the magnetic wave rod includes a rod body. One end of the rod body is fixedly sleeved on the outer wall of the rotating shaft. A strip-shaped groove is opened at the other end of the rod body, and a plurality of magnet sheets are arranged in the strip-shaped groove. A pressing plate is arranged in the strip-shaped groove, and one side wall of the rod body is threadedly connected with a bolt. One end of the bolt penetrates the rod body and abuts against the pressing plate.

[0008] Preferably, the wave rod driving connecting piece includes a sliding sleeve fixedly connected to the placing plate, and a rack is slidably connected to the inner wall of the sliding sleeve. One end of the rotating shaft is fixedly connected with a gear, and the gear meshes with the rack. One side wall of the rack is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a pin shaft. A supporting plate is fixedly connected to the inner wall of the chassis, and a fixed shaft is fixedly connected to the upper surface of the supporting plate. One end of the fixed shaft penetrates through the placing plate and extends into the cavity. One end of the fixed shaft located inside the cavity is fixedly connected with a fixed disk, and a guiding groove is formed on the upper surface of the fixed disk. One end of the pin shaft is located inside the guiding groove.

[0009] Preferably, a rotating sleeve is rotatably connected to the outer wall of the pin shaft, and the outer wall of the rotating sleeve contacts the inner wall of the guiding groove.

[0010] Preferably, a limiting ring is fixedly connected to the outer wall of the connecting rod, and the limiting ring is fixedly connected to the inner wall of the cavity.

[0011] Preferably, a retaining ring cover is fixedly sleeved on the outer wall of the slider, and the outer wall of the retaining ring cover is slidably connected to the inner wall of the annular groove.

[0012] Preferably, a retaining block is fixedly connected to the inner wall of the annular groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, by providing a placing plate, when the device is in use, the guardrail plates can be stacked on the placing plate. In this way, when the device is in use, multiple guardrail plates can be transported at one time. When installing the guardrail plates, after installing one guardrail plate, there is no need to push the device back. Instead, the guardrail plate on the placing plate can be directly lifted to carry out the installation of the next one, thereby avoiding the time-consuming and laborious problem of pushing the lifting device back and forth, and improving the installation efficiency of the guardrail plates.

[0015] In the present invention, before pushing the device to move, the placing plate can be manually pushed to rotate. The rotating placing plate can drive the guardrail plate to rotate, thereby turning the horizontally placed guardrail plate to the vertically placed position. In this way, when the device is pushed to the front of the column, it will not be affected by the excessive width of the guardrail plate when pushing the device, enabling the device to pass through a narrower position and improving the practicality of the device. When lifting the guardrail plate, the placing plate can be pushed to rotate in the reverse direction again. The rotating placing plate drives the guardrail plate to rotate in the reverse direction, thereby turning the vertically placed guardrail plate to the horizontally placed position. In this way, when lifting the guardrail plate, it is convenient to lift the guardrail plate.

[0016] In the present invention, by arranging a magnetic wave rod and a wave rod driving connecting member to cooperate with each other, when a person pushes the placement plate to rotate, the wave rod driving connecting member can drive the magnetic wave rod to rotate, so that one side of the magnetic wave rod is placed on one side of the guardrail plate. When the placement plate is pushed back in the reverse direction, the wave rod driving connecting member can drive the magnetic wave rod to rotate back. When it rotates back, the driving magnetic wave rod can carry a guardrail plate, guiding the guardrail plate to one side of the stop rod on the other side, thus separating one guardrail plate from multiple guardrail plates and exposing the hole of one guardrail plate. Further, when lifting the guardrail plate, it is convenient to hang the hook in the hole, and further, it is convenient to lift the guardrail plate during hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 is a partial structural diagram of the present invention;

[0019] Figure 3 is a three-dimensional structural diagram of the placement plate of the present invention;

[0020] Figure 4 is Figure 3 an enlarged structural diagram of part A in

[0021] Figure 5 is a sectional structural diagram of the placement plate of the present invention;

[0022] Figure 6 is Figure 5 an enlarged structural diagram of part B in

[0023] Figure 7 is Figure 5 an enlarged structural diagram of part C in

[0024] Figure 8 is a three-dimensional structural diagram of the retaining ring cover of the present invention;

[0025] Figure 9 is a three-dimensional structural diagram of the fixing plate of the present invention.

[0026] In the figure: 1, chassis; 2, lifting boom; 3, inverted L frame; 4, handlebar; 5, annular groove; 6, placement plate; 7, retaining bar; 8, slider; 9, card slot; 10, roller; 11, cavity; 12, through hole; 13, erection block; 14, rotating shaft; 15, magnetic fluctuation rod; 16, sliding sleeve; 17, rack; 18, gear; 19, connecting rod; 20, pin shaft; 21, support plate; 22, fixed shaft; 23, fixed disk; 24, guide groove; 25, rotating sleeve; 26, limiting ring; 27, retaining ring cover; 28, retaining block; 151, rod body; 152, bolt; 153, strip-shaped groove; 154, magnet sheet; 155, pressing plate. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Please refer to Figures 1-9 , a hoisting device for highway construction, including a chassis 1 and a lifting boom 2. The upper surface of the chassis 1 is fixedly connected with an inverted L frame 3, and the upper surface of the inverted L frame 3 is fixedly connected with a handlebar 4. One side wall of the handlebar 4 is fixedly connected with the lifting boom 2. An annular groove 5 is opened on the upper surface of the chassis 1, and a placement plate 6 is arranged above the annular groove 5. A plurality of retaining bars 7 are fixedly connected to the upper surface of the placement plate 6. A slider 8 is arranged below the placement plate 6, and the slider 8 is slidably connected with the inner wall of the annular groove 5. A card slot 9 is opened on the lower surface of the slider 8, and a roller 10 is arranged in the card slot 9. The roller 10 contacts the bottom of the annular groove 5. A cavity 11 is opened inside the placement plate 6, and a feeding component is arranged in the cavity 11. A through hole 12 is opened on the upper surface of the placement plate 6, and one end of the feeding component passes through the through hole 12 and extends to the outside of the cavity 11.

[0029] It can be seen from the above structure that by setting the placement plate 6, when the device is in use, the guardrail plates can be stacked on the placement plate 6. In this way, when the device is in use, multiple guardrail plates can be transported at one time. When installing the guardrail plates, after installing one guardrail plate, there is no need to push the device back. Instead, the guardrail plates on the placement plate 6 can be directly lifted to carry out the installation of the next one, thereby avoiding the time-consuming and laborious problem of pushing the hoisting device back and forth, and improving the installation efficiency of the guardrail plates. And before pushing the device to move, the placement plate 6 can be manually pushed to rotate. The rotating placement plate 6 can drive the guardrail plates to rotate, so as to turn the horizontally placed guardrail plates to the vertically placed position. In this way, when the device is pushed in front of the column, it will not be affected by the excessive width of the guardrail plates when pushing the device, enabling the device to pass through a narrower position and improving the practicability of the device.

[0030] Furthermore, the blanking component includes a mounting block 13 fixedly connected to the inner wall of the cavity 11. One side wall of the mounting block 13 is rotatably connected to a rotating shaft 14. The outer wall of the rotating shaft 14 is fixedly connected to a magnetic fluctuation rod 15. One end of the magnetic fluctuation rod 15 passes through the through hole 12 and extends to the outside of the cavity 11. A fluctuation rod driving connecting piece is arranged in the cavity 11. By setting the magnetic fluctuation rod 15 and the fluctuation rod driving connecting piece to cooperate with each other, when the placement plate 6 is manually pushed to rotate, the fluctuation rod driving connecting piece can drive the magnetic fluctuation rod 15 to rotate, so that one side of the magnetic fluctuation rod 15 is placed on one side of the guardrail plate. When the placement plate 6 is pushed back in the reverse direction, the fluctuation rod driving connecting piece can drive the magnetic fluctuation rod 15 to rotate back. When it rotates back, the driving magnetic fluctuation rod 15 can drive a guardrail plate, so that the guardrail plate is guided to one side of the stop rod 7 on the other side, thus separating one guardrail plate from multiple guardrail plates, exposing the hole of one guardrail plate. Further, when lifting the guardrail plate, it is convenient to hang the hook in the hole, and further, when lifting, it is convenient to lift the guardrail plate.

[0031] Furthermore, the magnetic fluctuation rod 15 includes a rod body 151. One end of the rod body 151 is fixedly sleeved on the outer wall of the rotating shaft 14. The other end of the rod body 151 is provided with a strip-shaped groove 153. A plurality of magnet sheets 154 are arranged in the strip-shaped groove 153. A pressing plate 155 is arranged in the strip-shaped groove 153. One side wall of the rod body 151 is threadedly connected with a bolt 152. One end of the bolt 152 penetrates through the rod body 151 and abuts against the pressing plate 155. By setting the magnet sheets 154 and the rod body 151 to cooperate with each other, the rod body 151 is made magnetic, so that the rod body 151 can attract the guardrail plate. Moreover, the magnetic force of the device can be increased or decreased by increasing or decreasing the magnet sheets 154, thus ensuring that the device can only attract one guardrail plate at a time.

[0032] Further, the wave rod driving connector includes a sliding sleeve 16 fixedly connected to the placement plate 6. A rack 17 is slidably connected to the inner wall of the sliding sleeve 16. One end of the rotating shaft 14 is fixedly connected to a gear 18, and the gear 18 meshes with the rack 17. One side wall of the rack 17 is fixedly connected to a connecting rod 19, and one end of the connecting rod 19 is fixedly connected to a pin shaft 20. The inner wall of the chassis 1 is fixedly connected to a support plate 21, and the upper surface of the support plate 21 is fixedly connected to a fixed shaft 22. One end of the fixed shaft 22 passes through the placement plate 6 and extends into the cavity 11. One end of the fixed shaft 22 located inside the cavity 11 is fixedly connected to a fixed disk 23, and a guide groove 24 is formed on the upper surface of the fixed disk 23. One end of the pin shaft 20 is arranged inside the guide groove 24; by setting the pin shaft 20 and the guide groove 24 to cooperate with each other, when the placement plate 6 is rotated, the rotating placement plate 6 can drive the rack 17 and the pin shaft 20 to rotate. When the pin shaft 20 rotates to a certain position, the pin shaft 20 is guided by the guide groove 24 to pull the connecting rod 19 to move. The moving connecting rod 19 can drive the rack 17 to move. The moving rack 17 drives the gear 18 to rotate. The rotating gear 18 drives the rotating shaft 14 to rotate. The rotating rotating shaft 14 drives the rod body 151 to rotate. After the rod body 151 rotates a certain angle, the rod body 151 contacts the guardrail plate; when the placement plate 6 is reversed, the reversed placement plate 6 drives the rack 17 and the pin shaft 20 to reverse, so that the pin shaft 20 can drive the gear 18 to reverse through the rack 17 and the like. The reversely rotating gear 18 drives the rod body 151 to reverse. At this time, the reversed rod body 151 drives a guardrail plate through the magnet sheet 154, so that the guardrail plate is guided to one side of the other stop rod 7, thus separating one guardrail plate from multiple guardrail plates, exposing the holes of one guardrail plate, and further facilitating hanging the hook in the holes when lifting the guardrail plate. Further, during lifting, it is convenient to lift the guardrail plate.

[0033] Further, a rotating sleeve 25 is rotatably connected to the outer wall of the pin shaft 20, and the outer wall of the rotating sleeve 25 contacts the inner wall of the guide groove 24; by setting the rotating sleeve 25, the sliding friction between the pin shaft 20 and the guide groove 24 can be converted into the rotating friction between the rotating sleeve 25 and the guide groove 24, thereby reducing the friction force.

[0034] Further, a limiting ring 26 is fixedly connected to the outer wall of the connecting rod 19, and the limiting ring 26 is fixedly connected to the inner wall of the cavity 11; by setting the limiting ring 26, the connecting rod 19 can be limited to ensure the stability of the connecting rod 19 during movement.

[0035] Further, a retaining ring cover 27 is fixedly sleeved on the outer wall of the slider 8, and the outer wall of the retaining ring cover 27 is slidably connected to the inner wall of the annular groove 5; by setting the retaining ring cover 27, one end of the annular groove 5 can be sealed, thereby preventing dust and the like from falling into the annular groove 5.

[0036] Furthermore, a stop block 28 is fixedly connected to the inner wall of the annular groove 5; by providing the stop block 28, after the placement plate 6 rotates by a certain angle, the stop block 28 cooperates with the slider 8 to block the continuous rotation of the placement plate 6.

[0037] In the present invention, when in use, the device is pushed to one side of the stacked guardrail plates, and then the hook of the lifting boom 2 is hung in the hole of the guardrail plate. Then, the guardrail plate can be lifted onto the placement plate 6 by the lifting boom 2, and then the guardrail plates are vertically stacked on the placement plate 6, making the guardrail plates lean against the stop rod 7 on the side away from the magnetic fluctuation rod 15. After a certain number of guardrail plates are stacked, the device can be pushed to one side of the column for installation;

[0038] Before pushing the device to one side of the column, the placement plate 6 can be manually rotated. The rotating placement plate 6 can drive the guardrail plate to rotate, thereby rotating the horizontally placed guardrail plate to the vertical position. In this way, when the device is pushed in front of the column, it will not be affected by the excessive width of the guardrail plate when pushing the device, enabling the device to pass through a narrower position;

[0039] And when rotating the placement plate 6, the rotating placement plate 6 can drive the rack 17 and the pin shaft 20 to rotate. When the pin shaft 20 rotates to a certain position, the pin shaft 20 is guided by the guide groove 24 to pull the connecting rod 19 to move. The moving connecting rod 19 can drive the rack 17 to move, and the moving rack 17 drives the gear 18 to rotate. The rotating gear 18 drives the rotating shaft 14 to rotate, and the rotating rotating shaft 14 drives the rod body 151 to rotate. After the rod body 151 rotates by a certain angle and contacts the guardrail plate, the rotation of the placement plate 6 can be stopped;

[0040] After the device moves to one side of the column, the placement plate 6 can be pushed to rotate in the reverse direction again. The rotating placement plate 6 drives the guardrail plate to rotate in the reverse direction, thereby rotating the vertically placed guardrail plate to the horizontal position. In this way, when lifting the guardrail plate, it is convenient to lift the guardrail plate;

[0041] When rotating the placement plate 6 in the reverse direction, the reverse rotating placement plate 6 drives the rack 17 and the pin shaft 20 to rotate in the reverse direction, enabling the pin shaft 20 to drive the gear 18 to rotate in the reverse direction through the rack 17, etc. The reversely rotating gear 18 drives the rod body 151 to rotate in the reverse direction. At this time, the reversely rotating rod body 151 drives a guardrail plate through the magnet sheet 154, making the guardrail plate guide to one side of the stop rod 7. In this way, one guardrail plate is separated from multiple guardrail plates, exposing the hole of one guardrail plate. Further, when lifting the guardrail plate, it is convenient to hang the hook in the hole, and further, when lifting, it is convenient to lift the guardrail plate. After one guardrail plate is installed, the device can be pushed to the next installation position for installation.

[0042] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for highway construction, comprising a chassis (1) and a lifting boom (2), characterized in that, The upper surface of the chassis (1) is fixedly connected with an inverted L-shaped frame (3), and the upper surface of the inverted L-shaped frame (3) is fixedly connected with a handlebar (4). One side wall of the handlebar (4) is fixedly connected with a lifting boom (2). An annular groove (5) is formed on the upper surface of the chassis (1), and a placing plate (6) is arranged above the annular groove (5). A plurality of retaining rods (7) are fixedly connected to the upper surface of the placing plate (6). A slider (8) is arranged below the placing plate (6), and the slider (8) is slidably connected with the inner wall of the annular groove (5). A clamping groove (9) is formed on the lower surface of the slider (8), and a roller (10) is arranged in the clamping groove (9). The roller (10) contacts the bottom of the annular groove (5). A cavity (11) is formed inside the placing plate (6), and a material pushing component is arranged in the cavity (11). A through hole (12) is formed on the upper surface of the placing plate (6), and one end of the material pushing component passes through the through hole (12) and extends to the outside of the cavity (11). The material pushing component includes a mounting block (13) fixedly connected to the inner wall of the cavity (11). One side wall of the mounting block (13) is rotatably connected with a rotating shaft (14). A magnetic wave rod (15) is fixedly connected to the outer wall of the rotating shaft (14). One end of the magnetic wave rod (15) passes through the through hole (12) and extends to the outside of the cavity (11). A wave rod driving connecting piece is arranged in the cavity (11). The wave rod driving connecting piece includes a sliding sleeve (16) fixedly connected to the placing plate (6). A rack (17) is slidably connected to the inner wall of the sliding sleeve (16). One end of the rotating shaft (14) is fixedly connected with a gear (18), and the gear (18) meshes with the rack (17). One side wall of the rack (17) is fixedly connected with a connecting rod (19), and one end of the connecting rod (19) is fixedly connected with a pin shaft (20). A support plate (21) is fixedly connected to the inner wall of the chassis (1), and a fixed shaft (22) is fixedly connected to the upper surface of the support plate (21). One end of the fixed shaft (22) penetrates through the placing plate (6) and extends to the inside of the cavity (11). A fixed disk (23) is fixedly connected to one end of the fixed shaft (22) located inside the cavity (11). A guide groove (24) is formed on the upper surface of the fixed disk (23). One end of the pin shaft (20) is arranged inside the guide groove (24).

2. The hoisting device for highway construction according to claim 1, characterized in that, The magnetic wave rod (15) includes a rod body (151). One end of the rod body (151) is fixedly sleeved on the outer wall of the rotating shaft (14). A strip-shaped groove (153) is formed at the other end of the rod body (151), and a plurality of magnet sheets (154) are arranged in the strip-shaped groove (153). A pressing plate (155) is arranged in the strip-shaped groove (153). One side wall of the rod body (151) is threadedly connected with a bolt (152). One end of the bolt (152) penetrates through the rod body (151) and abuts against the pressing plate (155).

3. The hoisting device for highway construction according to claim 1, characterized in that, A rotating sleeve (25) is rotatably connected to the outer wall of the pin shaft (20), and the outer wall of the rotating sleeve (25) contacts the inner wall of the guide groove (24).

4. A hoisting device for highway construction according to claim 1, characterized in that A limiting ring (26) is fixedly connected to the outer wall of the connecting rod (19), and the limiting ring (26) is fixedly connected to the inner wall of the cavity (11).

5. A hoisting device for highway construction according to claim 1, characterized in that, A retaining ring cover (27) is fixedly sleeved on the outer wall of the slider (8), and the outer wall of the retaining ring cover (27) is slidably connected to the inner wall of the annular groove (5).

6. The hoisting device for highway construction according to claim 1, characterized in that, A stop block (28) is fixedly connected to the inner wall of the annular groove (5).

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