Lifting device for highway construction

Abstract

The invention relates to the technical field of lifting devices, in particular to a lifting device for highway construction, which comprises a bottom frame and a lifting suspender, the upper surface of the bottom frame is fixedly connected with an inverted L-shaped frame, the upper surface of the inverted L-shaped frame is fixedly connected with a handle rod, the side wall of one side of the handle rod is fixedly connected with the lifting suspender, and an annular groove is formed in the upper surface of the bottom frame. A placing plate is arranged above the annular groove, and a plurality of stop levers are fixedly connected to the upper surface of the placing plate. According to the device, by arranging the containing plate, when the device is used, guardrail plates can be stacked on the containing plate, in this way, when the device is used, multiple guardrail plates can be transported at a time, when the guardrail plates are installed, after one guardrail plate is installed, the device does not need to be pushed back, and the guardrail plates on the containing plate can be directly hoisted; therefore, the problem that time and labor are wasted due to the fact that the hoisting device is pushed back and forth is avoided, and then the installation efficiency of the guardrail plate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices, in particular to a lifting device for highway construction. Background Art

[0002] In highway construction, after the road surface is built, guardrails need to be installed on both sides. When installing the guardrail panels, first mark the positions on both sides of the highway, dig holes and place the posts into the holes, adjust their verticality and horizontal position and tamp them, then move the guardrail panels to the side of the posts and fix them to the posts with bolts and nuts. The side walls of the posts and guardrail panels are provided with through holes for the bolts to pass through.

[0003] However, during the installation process, manually lifting the guardrail board is not only laborious but also difficult to keep stable. Therefore, a lifting device is usually used to lift the guardrail board. The existing lifting device can only lift one guardrail board at a time. After installing one guardrail board, the lifting device needs to be pushed back to lift the next guardrail board. This method of pushing the lifting device back and forth is time-consuming and labor-intensive, which reduces the installation efficiency of the guardrail board. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a hoisting device for highway construction.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lifting device for highway construction, comprising a base frame and a lifting boom, the upper surface of the base frame is fixedly connected with an inverted L-frame, and the upper surface of the inverted L-frame is fixedly connected with a handlebar, one side wall of the handlebar is fixedly connected to the lifting boom, an annular groove is provided on the upper surface of the base frame, and a placement plate is provided above the annular groove, a plurality of baffle bars are fixedly connected to the upper surface of the placement plate, a slider is provided below the placement plate, and the slider is slidably connected to the inner wall of the annular groove, a clamping groove is provided on the lower surface of the slider, and a roller is provided in the clamping groove, the roller contacts the bottom of the annular groove, a cavity is provided inside the placement plate, and a material shifting assembly is provided in the cavity, a through hole is provided on the upper surface of the placement plate, and one end of the material shifting assembly passes through the through hole and extends to the outside of the cavity.

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

[0007] Preferably, the magnetic wave rod includes a rod body, and one end of the rod body is fixedly sleeved on the outer wall of the rotating shaft, the other end of the rod body is provided with a strip groove, and a plurality of magnet sheets are arranged in the strip groove, a pressure plate is arranged in the strip groove, and a bolt is threadedly connected to a side wall of one side of the rod body, and one end of the bolt passes through the rod body and abuts against the pressure plate.

[0008] Preferably, the wave rod driving connecting member includes a sliding sleeve fixedly connected to the placement plate, and the inner wall of the sliding sleeve is slidably connected to a rack, one end of the rotating shaft is fixedly connected to a gear, and the gear is meshed with the rack, one side wall of the rack is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to a pin shaft, the inner wall of the base frame is fixedly connected to a support plate, and the upper surface of the support plate is fixedly connected to a fixed shaft, one end of the fixed shaft passes through the placement plate and extends to the inside of the cavity, one end of the fixed shaft located in the cavity is fixedly connected to a fixed disk, and a guide groove is opened on the upper surface of the fixed disk, and one end of the pin shaft is arranged inside the guide groove.

[0009] Preferably, the outer wall of the pin shaft is rotatably connected with a rotating sleeve, and the outer wall of the rotating sleeve is in contact with the inner wall of the guide groove.

[0010] Preferably, the outer wall of the connecting rod is fixedly connected to a limiting ring, 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 sliding block, and the outer wall of the retaining ring cover is slidably connected to the inner wall of the annular groove.

[0012] Preferably, a stopper 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: The present invention, by providing a placement plate, allows the guardrail panels to be stacked on the placement plate when the device is in use, so that the device can transport multiple guardrail panels at a time when in use. In this way, when installing the guardrail panels, there is no need to push the device back after installing one guardrail panel, and the guardrail panel on the placement plate can be directly lifted to install the next one, thereby avoiding the time-consuming and labor-intensive problem of pushing the lifting device back and forth, thereby improving the installation efficiency of the guardrail panels.

[0014] According to the present invention, before pushing the device to move, the placement plate can be manually pushed to rotate, and the rotating placement plate can drive the guardrail plate to rotate, thereby turning the horizontally placed guardrail plate to a vertical position. In this way, when the device is pushed in front of the column, the pushing of the device will not be affected by the excessive width of the guardrail plate, so that the device can pass through a narrower position, thereby improving the practicality of the device. When lifting the guardrail plate, the placement plate can be pushed to reverse again, and the rotating placement plate drives the guardrail plate to reverse, thereby turning the vertically placed guardrail plate to a horizontal position. In this way, when the guardrail plate is lifted, it is convenient to lift the guardrail plate.

[0015] The present invention, by setting a magnetic wave rod and a wave rod driving connecting piece for use in conjunction, when the placement plate is manually pushed to rotate, the wave rod driving connecting piece 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, and when the placement plate is pushed back again, the wave rod driving connecting piece can drive the magnetic wave rod to rotate back, and when it rotates back, the driving magnetic wave rod can carry a guardrail plate, so that the guardrail plate is guided to the other side of the baffle bar, so that one of the guardrail plates is separated from the multiple guardrail plates, so that the hole of one of the guardrail plates is exposed, and then when the guardrail plate is lifted, it is convenient to hang the hook in the hole, and further when lifting, it is convenient to lift the guardrail plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the placement plate of the present invention; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic cross-sectional structural diagram of a placement plate of the present invention; Figure 6 for Figure 5 The enlarged structural diagram at B in the middle; Figure 7 for Figure 5 The enlarged structural diagram at C in the middle; Figure 8 It is a schematic diagram of the three-dimensional structure of the retaining ring cover of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixed disk of the present invention.

[0017] In the figure: 1. base frame; 2. lifting suspension rod; 3. inverted L frame; 4. handlebar; 5. annular groove; 6. placement plate; 7. stopper rod; 8. slider; 9. slot; 10. roller; 11. cavity; 12. through hole; 13. mounting block; 14. rotating shaft; 15. magnetic wave 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. limit ring; 27. stopper ring cover; 28. block; 151. rod body; 152. bolt; 153. strip groove; 154. magnet sheet; 155. pressure plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-Figure 9 A lifting device for highway construction comprises a base frame 1 and a lifting boom 2, an inverted L frame 3 is fixedly connected to the upper surface of the base frame 1, and a handle bar 4 is fixedly connected to the upper surface of the inverted L frame 3, and a side wall of the handle bar 4 is fixedly connected to the lifting boom 2, an annular groove 5 is provided on the upper surface of the base frame 1, and a placing plate 6 is arranged above the annular groove 5, a plurality of blocking 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 to the inner wall of the annular groove 5, a card groove 9 is provided on the lower surface of the slider 8, and a roller 10 is arranged in the card groove 9, and the roller 10 contacts the bottom of the annular groove 5, a cavity 11 is provided inside the placing plate 6, and a material shifting assembly is arranged in the cavity 11, a through hole 12 is provided on the upper surface of the placing plate 6, and one end of the material shifting assembly passes through the through hole 12 and extends to the outside of the cavity 11.

[0020] It can be seen from the above structure that: by setting the placement plate 6, the guardrail panels can be stacked on the placement plate 6 when the device is in use, so that when the device is in use, multiple guardrail panels can be transported at a time. In this way, when installing the guardrail panels, there is no need to push the device back after installing one guardrail panel, and the guardrail panel on the placement plate 6 can be directly lifted to install the next one, thereby avoiding the time-consuming and labor-intensive problem of pushing the lifting device back and forth, thereby improving the installation efficiency of the guardrail panels; and before pushing the device to move, the placement plate 6 can be manually pushed to rotate, and the rotating placement plate 6 can drive the guardrail panels to rotate, and then the horizontally placed guardrail panels can be turned to the vertical position, so that when the device is pushed in front of the column, the pushing of the device will not be affected by the excessive width of the guardrail panels, so that the device can pass through a narrower position, thereby improving the practicality of the device.

[0021] Furthermore, the material-selecting assembly includes a mounting block 13 fixedly connected to the inner wall of the cavity 11, and a side wall of one side of the mounting block 13 is rotatably connected to a rotating shaft 14, an outer wall of the rotating shaft 14 is fixedly connected to a magnetic wave rod 15, and one end of the magnetic wave rod 15 passes through the through hole 12 and extends to the outside of the cavity 11, and a wave rod driving connector is arranged in the cavity 11; by arranging the magnetic wave rod 15 and the wave rod driving connector for use in conjunction with the like, when the placing plate 6 is manually pushed to rotate, the wave rod driving connector can drive the magnetic wave rod 15 to rotate, so that One side of the magnetic wave rod 15 is placed on one side of the guardrail plate. When the placement plate 6 is pushed back, the wave rod driving connector can drive the magnetic wave rod 15 to rotate back. When it rotates back, the driving magnetic wave rod 15 can carry a guardrail plate so that the guardrail plate is guided to the side of the baffle 7 on the other side. In this way, one of the guardrail plates is separated from multiple guardrail plates, so that the hole of one of the guardrail plates is exposed, and then when the guardrail plate is lifted, it is convenient to hang the hook in the hole, and further when lifting, it is convenient to lift the guardrail plate.

[0022] Furthermore, the magnetic wave rod 15 includes a rod body 151, and one end of the rod body 151 is fixedly sleeved on the outer wall of the rotating shaft 14, and the other end of the rod body 151 is provided with a strip groove 153, and a plurality of magnet pieces 154 are arranged in the strip groove 153, and a pressure plate 155 is arranged in the strip groove 153, and a bolt 152 is threadedly connected to a side wall of one side of the rod body 151, and one end of the bolt 152 passes through the rod body 151 and abuts against the pressure plate 155; by arranging the magnet piece 154 and the rod body 151 for use together, the rod body 151 has magnetism, and thus the rod body 151 can attract the guardrail plate, and the device can increase or decrease the magnetic size of the device by adding or reducing the magnet pieces 154, thereby ensuring that the device can only attract one guardrail plate at a time.

[0023] Further, the wave rod driving connecting member includes a sliding sleeve 16 fixedly connected to the placement plate 6, and the inner wall of the sliding sleeve 16 is slidably connected with a rack 17, one end of the rotating shaft 14 is fixedly connected with a gear 18, and the gear 18 is meshed with the rack 17, a connecting rod 19 is fixedly connected to one side wall of the rack 17, and one end of the connecting rod 19 is fixedly connected to a pin 20, the inner wall of the base frame 1 is fixedly connected with a support plate 21, and the upper surface of the support plate 21 is fixedly connected with a fixed shaft 22, one end of the fixed shaft 22 penetrates the placement plate 6 and extends to the inside of the cavity 11, one end of the fixed shaft 22 located in the cavity 11 is fixedly connected with a fixed disk 23, and a guide groove 24 is opened on the upper surface of the fixed disk 23, and one end of the pin 20 is located inside the guide groove 24; by setting the pin 20 and the guide groove 24 for use in conjunction, when the placement plate 6 is rotated, the rotating placement plate 6 can drive the rack 17 and the pin 20 to rotate, and when the pin 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, and the moving connecting rod 19 can drive the rack 17 to move, and the moving rack 17 drives the gear 18 to rotate, and 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 a certain angle, the rod body 151 contacts the guardrail plate; when the reverse 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, etc., and the counter-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 the side of the baffle rod 7 on the other side, so that one of the guardrail plates is separated from the multiple guardrail plates, so that the hole of one of the guardrail plates is exposed, and then when the guardrail plate is lifted, it is convenient to hang the hook in the hole, and further when lifting, it is convenient to lift the guardrail plate.

[0024] Furthermore, the outer wall of the pin shaft 20 is rotatably connected to a rotating sleeve 25, and the outer wall of the rotating sleeve 25 contacts the inner wall of the guide groove 24; by providing the rotating sleeve 25, the sliding friction between the pin shaft 20 and the guide groove 24 can be converted into the rotational friction between the rotating sleeve 25 and the guide groove 24, thereby reducing the friction force.

[0025] Furthermore, the outer wall of the connecting rod 19 is fixedly connected to a limiting ring 26, and the limiting ring 26 is fixedly connected to the inner wall of the cavity 11; by providing the limiting ring 26, the connecting rod 19 can be limited to ensure the stability of the connecting rod 19 when moving.

[0026] Furthermore, 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 providing 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.

[0027] Furthermore, a stopper 28 is fixedly connected to the inner wall of the annular groove 5; by providing the stopper 28, after the placement plate 6 rotates a certain angle, the stopper 28 cooperates with the slider 8 to prevent the placement plate 6 from continuing to rotate.

[0028] In the present invention, when in use, the device is pushed to the side where the guardrail panels are stacked, and then the hook of the lifting rod 2 is hung in the hole of the guardrail panel, and the guardrail panel can be lifted to the placement plate 6 by the lifting rod 2, and then the guardrail panel is stacked vertically on the placement plate 6, so that the guardrail panel is against the blocking rod 7 on the side away from the magnetic wave rod 15. After a certain number of guardrail panels are stacked, the device can be pushed to one side of the column for installation; Before pushing the device to one side of the column, the placement plate 6 can be manually pushed to rotate, and the rotating placement plate 6 can drive the guardrail plate to rotate, and then the horizontal guardrail plate is turned to the vertical position. In this way, when the device is pushed in front of the column, the pushing of the device will not be affected by the guardrail plate being too wide, so that the device can pass through a narrower position; When the placement plate 6 is rotated, the rotating placement plate 6 can drive the rack 17 and the pin 20 to rotate. When the pin 20 rotates to a certain position, the pin 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, and the rotation of the placement plate 6 can be stopped. After the device moves to one side of the column, the placement plate 6 can be pushed to reverse again, and the rotating placement plate 6 drives the guardrail plate to reverse, and then the vertical guardrail plate is turned to the horizontal position, so that when the guardrail plate is lifted, it is convenient to lift the guardrail plate; When the placement plate 6 is reversed, the reversed placement plate 6 drives the rack 17 and the pin 20 to reverse, so that the pin 20 can drive the gear 18 to reverse through the rack 17, etc., and the counter-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 the side of the baffle bar 7 on the other side, thereby separating one of the guardrail plates from multiple guardrail plates, exposing the hole of one of the guardrail plates, and then 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. In this way, after one guardrail plate is installed, the device can be pushed to the next installation position for installation.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for highway construction, comprising a base frame (1) and a lifting boom (2), characterized in that: The upper surface of the base frame (1) is fixedly connected to an inverted L frame (3), and the upper surface of the inverted L frame (3) is fixedly connected to a handle bar (4), a side wall of the handle bar (4) is fixedly connected to the lifting rod (2), an annular groove (5) is provided on the upper surface of the base frame (1), and a placement plate (6) is provided above the annular groove (5), a plurality of blocking rods (7) are fixedly connected to the upper surface of the placement plate (6), a slider (8) is provided below the placement plate (6), and the slider (8) ) is slidably connected to the inner wall of the annular groove (5), a slot (9) is provided on the lower surface of the slider (8), and a roller (10) is arranged in the slot (9), and the roller (10) is in contact with the bottom of the annular groove (5), a cavity (11) is provided inside the placement plate (6), and a material shifting assembly is arranged in the cavity (11), a through hole (12) is provided on the upper surface of the placement plate (6), and one end of the material shifting assembly passes through the through hole (12) and extends to the outside of the cavity (11).

2. A lifting device for highway construction according to claim 1, characterized in that: The material shifting assembly comprises a mounting block (13) fixedly connected to the inner wall of the cavity (11), and a side wall of the mounting block (13) is rotatably connected to a rotating shaft (14), an outer wall of the rotating shaft (14) is fixedly connected to a magnetic wave rod (15), and one end of the magnetic wave rod (15) passes through a through hole (12) and extends to the outside of the cavity (11), and a wave rod driving connecting piece is arranged in the cavity (11).

3. A lifting device for highway construction according to claim 2, characterized in that: The magnetic wave rod (15) comprises 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 groove (153), a plurality of magnet pieces (154) are arranged in the strip groove (153), a pressing plate (155) is arranged in the strip groove (153), and a bolt (152) is threadedly connected to a side wall of one side of the rod body (151), one end of the bolt (152) passes through the rod body (151) and abuts against the pressing plate (155).

4. A lifting device for highway construction according to claim 2, characterized in that: The wave rod driving connecting member comprises a sliding sleeve (16) fixedly connected to the placement plate (6), and the inner wall of the sliding sleeve (16) is slidably connected to a rack (17), one end of the rotating shaft (14) is fixedly connected to a gear (18), and the gear (18) meshes with the rack (17), a connecting rod (19) is fixedly connected to a side wall of one side of the rack (17), and one end of the connecting rod (19) is fixedly connected to a pin shaft (20), the inner wall of the base frame (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) penetrates the placement plate (6) and extends to be arranged inside 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 provided on the upper surface of the fixed disk (23), and one end of the pin shaft (20) is arranged inside the guide groove (24).

5. A lifting device for highway construction according to claim 4, characterized in that: The outer wall of the pin shaft (20) is rotatably connected to a rotating sleeve (25), and the outer wall of the rotating sleeve (25) is in contact with the inner wall of the guide groove (24).

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

7. A lifting device for highway construction according to claim 1, characterized in that: The outer wall of the sliding block (8) is fixedly sleeved with a retaining ring cover (27), and the outer wall of the retaining ring cover (27) is slidably connected to the inner wall of the annular groove (5).

8. A lifting device for highway construction according to claim 1, characterized in that: A stopper (28) is fixedly connected to the inner wall of the annular groove (5).

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