Lifting device for prefabricated road

Abstract

The invention relates to the technical field of prefabricated road construction, in particular to a prefabricated road lifting device. A hanging hole is formed in the top of a frame body; the number of the hanging holes is four, and the hanging holes are mutually symmetrical. The four hanging holes are movably formed in the four corners of the rack body; a mounting lifting mechanism is mounted at the bottom of the frame body; a mounting plate is mounted in the middle of the top of the frame body, and the mounting plate is movably mounted at the top of the frame body; the interior of the mounting plate is hollow; a movable clamping mechanism is mounted in the mounting plate; when the lifting device of the prefabricated road is used for lifting the road surface, the levelness of the whole road surface can be kept, and operations such as road surface movement, in-place and fine adjustment are safer, more flexible and simpler; compared with a traditional method, the labor intensity of workers is reduced, the number of workers is reduced, the safety construction capacity is improved, and the device is light in weight, convenient to carry, easy to operate and safe to operate; the material is widely applied to places with high requirements on pavements, such as parks, factories and transformer substations.

Description

Technical Field

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

[0002] ‌Prefabricated roads are mainly used for temporary road construction at construction sites. Prefabricated roads are roads that are assembled and laid on site using concrete slabs prefabricated in factories. Prefabricated cement pavements are currently new building materials that are widely used in various enterprises, factories, parks and other places. They are simple to construct, convenient and fast, and more conducive to quality control. Currently, they are mainly carried out by lifting at four corners, with sleepers and manual fine-tuning. The application of this invention will change the traditional lifting method, improve the lifting safety factor of prefabricated roads, and make lifting and adjustment more scientific and standardized.

[0003] A Chinese patent discloses a lifting device (authorization announcement number CN 117923362 U). This patented technology can ensure that if the lubricating oil is accidentally dripped in the direction of the gripping section during the process of adding lubricating oil, the lubricating oil will drip and adhere to the gripping sleeve. Compared with the gripping section composed of multiple chain links, the oil, dust, etc. adhered to the surface of the gripping sleeve are easier to clean, thereby reducing the chance of the operator's hands being contaminated during operation and improving the convenience of the operator's operation; however, this device is only suitable for construction materials of smaller volumes, and has fewer fulcrums. It is not stable enough during lifting and is prone to falling and causing safety accidents; it will be affected by terrain and weather.

[0004] Therefore, those skilled in the art provide a prefabricated road lifting device to solve the problems raised in the above background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a lifting device for prefabricated roads, comprising a frame, wherein a hanging hole is installed on the top of the frame; the hanging holes are provided with four mutually symmetrical ones; the four hanging holes are movably installed at the four corners of the frame, and the hanging holes can be rotated on the frame to adapt to hooks in different positions; an installation and lifting mechanism is installed at the bottom of the frame, and the lifting mechanism is used to lift the prefabricated road so as to transport the prefabricated road to a designated position; an installation plate is installed in the middle of the top of the frame, and the installation plate is movably installed on the top of the frame so as to transport and install the frame and various parts on the installation plate; the interior of the installation plate is hollow; a movable clamping mechanism is installed inside the installation plate, and the movable clamping mechanism is used to clamp the frame so as to cooperate with the operation of the lifting mechanism in the later stage to increase the stability of the lifting mechanism.

[0006] Preferably: a hanging ring is installed on the top of the mounting plate; the hanging ring is provided with two symmetrical ones on the left and right; the two hanging rings can rotate on the mounting plate; movable grooves are provided on the left and right sides of the mounting plate; the movable grooves facilitate the movement of the entire movable clamping mechanism; a threaded hole is opened on the front side of the mounting plate.

[0007] Preferably: mounting blocks are provided on the front and rear sides of the mounting plate; the mounting blocks are provided with four mutually symmetrical ones; and the four mounting blocks are grouped in pairs and are respectively mounted on the front and rear sides of the mounting plate; threaded rods are installed on the four mounting blocks; abutment plates are fixedly installed on the bottoms of the four threaded rods, and the abutment plates abut the frame; the frame is clamped and fixed by a mobile clamping mechanism so that the mounting plate is fixed to the frame, and then the four threaded rods are screwed to drive the abutment plate to move downward until the abutment plate is close to the top of the frame, thereby increasing the tightness of the mobile clamping mechanism and preventing the mounting plate from detaching from the frame when the frame is used later.

[0008] Preferably: the lifting mechanism comprises a fixed pulley, and the fixed pulleys are provided in a plurality; the plurality of fixed pulleys are provided in two groups symmetrically on the left and right; the two groups of fixed pulleys are installed at the bottom of the frame; the two groups of fixed pulleys are provided with a balancing wire rope, and the fixed pulleys dispersed in the two groups are connected in series by the balancing wire rope; the balancing wire rope is provided with a movable pulley, and the movable pulleys are provided in a plurality; a sling is installed at the bottom of each movable pulley; a hook is installed at the bottom of the sling; the size, quantity and balancing height of the pulleys on both sides are the same; When the lifting mechanism is in use, the lifting device of the prefabricated road is transported to the site and assembled, and then the steel wire above the frame is connected to the crane hook, and the crane slowly raises the frame, and the balance of the frame is adjusted by the balancing steel wire ropes on both sides below; after the crane is lifted to a suitable height, the movable pulleys on both sides below the frame are adjusted, the movable pulley hooks are connected, the frame is lifted above the prefabricated road, the movable pulley hooks are connected to the hole grooves of the prefabricated road by a card sleeve, and then the frame is slowly lifted, and the prefabricated road surface is lifted to the specified position, and the installation and positioning of the prefabricated road can be completed.

[0009] Preferably: the movable clamping mechanism includes a mounting rod, which is mounted in the middle of the interior of the mounting plate; a turbine is mounted on the mounting rod; a gear is mounted on the upper side of the turbine; a movable plate 1 is mounted on the rear side of the gear, and a tooth 1 is provided on the inner side of the movable plate 1, and the tooth 1 meshes with the gear; a connecting plate 1 is mounted on the left side of the movable plate 1; a clamping plate 1 is mounted on the right side of the connecting plate 1; a worm is meshed and mounted on the left side of the turbine, and the worm is mounted in the threaded hole; a handle is mounted on the front side of the worm; a movable plate 2 is mounted on the front side of the gear, and a tooth 2 is provided on the inner side of the movable plate 2, and a connecting plate 2 is mounted on the right side of the movable plate 2; a clamping plate is mounted on the left side of the connecting plate 1 2. Twist the worm by holding the handle, the worm drives the turbine, the turbine drives the gear, the gear drives the movable plate 1 and the movable plate 2 to move toward each other, the movable plate 1 and the movable plate 2 drive the connecting plate 1 and the connecting plate 2 to move, the connecting plate 1 and the connecting plate 2 drive the clamping plate 1 and the clamping plate 2 to adjust to the appropriate position, and then twist the worm in the opposite direction to shrink the two clamping plates, so that the two clamping plates clamp the frame, and the worm indirectly drives the two clamping plates to move so as to adapt to different sizes of frames for clamping and fixing. When encountering a larger prefabricated road in the later stage, the crane hook can be hung on the hanging ring by installing the mounting plate, and the original four contact points are changed to six contact points, which increases the force points of the crane on the frame, increases the stability of the lifting frame, and expands the scope of use of the device.

[0010] Preferably: a connecting block 1 is installed between the connecting plate 1 and the clamping plate 1; a bolt 1 is installed between the connecting block 1 and the connecting plate 1; a connecting block 2 is installed between the connecting plate 2 and the clamping plate 2; and a bolt 2 is installed between the connecting block 2 and the connecting plate 2.

[0011] Technical effects and advantages of the present invention: 1. The present invention provides a lifting device for a prefabricated road. When lifting the road surface, the lifting device for the prefabricated road can maintain the horizontality of the entire road surface, and is safer, more flexible and simpler in operations such as moving, positioning and fine-tuning the road surface. Compared with traditional methods, it reduces the labor intensity of workers, reduces the number of workers, improves the safety construction capability, is light in weight, easy to carry, simple to operate and safe to operate, and is widely used in parks, factories, substations and other places with high requirements on road surfaces.

[0012] 2. The present invention realizes that the prefabricated cement pavement is not affected by terrain conditions and weather; optimizes the product structure of the prefabricated cement pavement in the station; improves the safety of lifting the prefabricated cement pavement, and the overall combination of the frame is more scientific; the overall weight of the prefabricated cement pavement is balanced at the hanging point above the frame; the overall weight of the prefabricated cement pavement is evenly distributed by gravity at the pulley group below the frame.

[0013] 3. The present invention rotates the worm by holding the handle, the worm drives the turbine, the turbine drives the gear, the gear drives the movable plate 1 and the movable plate 2 to move toward each other, the movable plate 1 and the movable plate 2 drive the connecting plate 1 and the connecting plate 2 to move, the connecting plate 1 and the connecting plate 2 drive the clamping plate 1 and the clamping plate 2 to adjust to a suitable position, and then rotates the worm in the reverse direction to shrink the two clamping plates, so that the two clamping plates clamp the frame, and the worm indirectly drives the two clamping plates to move so as to adapt to different sizes of frames for clamping and fixing. When encountering a larger prefabricated road in the later stage, the crane hook can be hung on the hanging ring by installing the mounting plate, and the original four contact points are changed to six contact points, thereby increasing the force points of the crane on the frame, increasing the stability of the lifting frame, and expanding the scope of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a prefabricated road lifting device provided in an embodiment of the present application; Figure 2 The invention provides a prefabricated road lifting device with an overall explosion-proof structure. Figure 1 ; Figure 3 The invention provides a prefabricated road lifting device with an overall explosion-proof structure. Figure 2 ; Figure 4 This is a partial structural diagram of a prefabricated road lifting device provided in an embodiment of the present application. Figure 1 ; Figure 5 A prefabricated road lifting device provided in an embodiment of the present application Figure 4 A schematic diagram of the structure enlarged at A; Figure 6 This is a partial structural diagram of a prefabricated road lifting device provided in an embodiment of the present application. Figure 2 ; Figure 7 It is an exploded view of a part of the structure of a lifting device for a prefabricated road provided in an embodiment of the present application; Figure 8 It is a partial structural cross-sectional view of a lifting device for a prefabricated road provided in an embodiment of the present application; Fig. 9 This is a partial structural diagram of a prefabricated road lifting device provided in an embodiment of the present application. Figure 3 ; Fig.10 A prefabricated road lifting device provided in an embodiment of the present application Fig. 9 Schematic diagram of the enlarged structure at B.

[0015] In the figure: 1. hanging hole; 2. frame; 3. fixed pulley; 4. balancing wire rope; 5. movable pulley; 6. sling; 7. mounting plate; 71. hanging ring; 72. mounting block; 73. threaded rod; 74. movable groove; 75. threaded hole; 76. abutment plate; 8. mounting rod; 81. turbine; 82. gear; 9. movable plate one; 91. tooth one; 92. connecting plate one; 93. connecting block one; 94. clamping plate one; 95. bolt one; 10. movable plate two; 101. tooth two; 102. connecting plate two; 103. connecting block two; 104. clamping plate two; 105. bolt two; 11. worm; 12. handle; 13. fastening bolt one; 14. fastening bolt two. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses. Example

[0017] See also Figures 1 to 10 In this embodiment, a lifting device for a prefabricated road is provided, comprising a frame 2, a hanging hole 1 is installed on the top of the frame 2; the hanging holes 1 are provided with four mutually symmetrical ones; the four hanging holes 1 are movably installed at the four corners of the frame 2, and the hanging holes 1 can be rotated on the frame 2 to adapt to hooks in different positions; a mounting lifting mechanism is installed at the bottom of the frame 2, and the lifting mechanism is used to lift the prefabricated road so as to transport the prefabricated road to a designated position; a mounting plate 7 is installed in the middle of the top of the frame 2, and the mounting plate 7 is movably installed on the top of the frame 2 so as to transport and install the frame 2 and various parts on the mounting plate 7; the mounting plate 7 is hollow inside; a movable clamping mechanism is installed inside the mounting plate 7, and the movable clamping mechanism is used to clamp the frame 2 so as to cooperate with the lifting mechanism in the later operation to increase the stability of the lifting mechanism; A hanging ring 71 is installed on the top of the mounting plate 7; the hanging ring 71 is provided with two symmetrical ones; the two hanging rings 71 can rotate on the mounting plate 7; the left and right sides of the mounting plate 7 are provided with moving grooves 74; the moving grooves 74 facilitate the movement of the entire mobile clamping mechanism; the front side of the mounting plate 7 is provided with a threaded hole 75; The front and rear sides of the mounting plate 7 are both provided with mounting blocks 72; the mounting blocks 72 are provided with four mutually symmetrical ones; and the four mounting blocks 72 are grouped in pairs, and are respectively mounted on the front and rear sides of the mounting plate 7; threaded rods 73 are mounted on the four mounting blocks 72; the bottoms of the four threaded rods 73 are fixedly mounted with abutment plates 76, which abut against the frame body 2; the frame body 2 is clamped and fixed by a mobile clamping mechanism so that the mounting plate 7 is fixed to the frame body 2, and then the four threaded rods 73 are screwed to drive the abutment plates 76 to move downward until the abutment plates 76 are close to the top of the frame body 2, thereby increasing the tightness of the mobile clamping mechanism and preventing the mounting plate 7 from detaching from the frame body 2 when the frame body 2 is used later; The lifting mechanism includes a fixed pulley 3, and the fixed pulley 3 is provided with a plurality of them; the plurality of fixed pulleys 3 are provided in two groups symmetrically on the left and right; the two groups of fixed pulleys 3 are installed at the bottom of the frame 2; the two groups of fixed pulleys 3 are provided with a balancing wire rope 4, and the two groups of dispersed fixed pulleys 3 are connected in series by the balancing wire rope 4; the balancing wire rope 4 is provided with a movable pulley 5, and the movable pulley 5 is provided with a plurality of them; a sling 6 is installed at the bottom of each movable pulley 5; a hook is installed at the bottom of the sling 6; the size, number and balancing height of the pulleys on both sides are the same; When the lifting mechanism is in use, the lifting device of the prefabricated road is transported to the site and assembled. Then, the steel wire above the frame 2 is connected to the crane hook, and the crane slowly raises the frame 2, and the balance of the frame 2 is adjusted by the balance steel wire ropes 4 on both sides below; after the crane is lifted to a suitable height, the movable pulleys 5 on both sides below the frame 2 are adjusted, the movable pulley 5 hooks are connected, the frame 2 is lifted above the prefabricated road, the movable pulley 5 hooks are connected with the hole grooves of the prefabricated road by a card sleeve, and then the frame 2 is slowly lifted, and the prefabricated road surface is lifted to the specified position, and the installation and positioning of the prefabricated road can be completed; The mobile clamping mechanism includes a mounting rod 8, which is mounted in the middle of the mounting plate 7; a turbine 81 is mounted on the mounting rod 8; a gear 82 is mounted on the upper side of the turbine 81; a mobile plate 9 is mounted on the rear side of the gear 82, and a tooth 91 is provided on the inner side of the mobile plate 9, and the tooth 91 is meshed with the gear 82; a connecting plate 92 is mounted on the left side of the mobile plate 9; a clamping plate 94 is mounted on the right side of the connecting plate 92; a worm 11 is meshed and mounted on the left side of the turbine 81, and the worm 11 is mounted in the threaded hole 75; a handle 12 is mounted on the front side of the worm 11; a mobile plate 10 is mounted on the front side of the gear 82, and a tooth 101 is provided on the inner side of the mobile plate 10, and a connecting plate 102 is mounted on the right side of the mobile plate 10; a clamping plate 92 is mounted on the left side of the connecting plate Plate 2 104; by holding the handle 12 and twisting the worm 11, the worm 11 drives the turbine 81, the turbine 81 drives the gear 82, the gear 82 drives the movable plate 1 9 and the movable plate 2 10 to move towards each other, the movable plate 1 9 and the movable plate 2 10 drive the connecting plate 1 92 and the connecting plate 2 102 to move, the connecting plate 1 92 and the connecting plate 2 102 drive the clamping plate 1 94 and the clamping plate 2 104 to adjust to a suitable position, and then twisting the worm 11 in the opposite direction to shrink the two clamping plates, so that the two clamping plates clamp the frame 2, and the worm 11 indirectly drives the two clamping plates to move, so as to adapt to different sizes of frames 2 for clamping and fixing. When encountering a larger prefabricated road in the later stage, by installing the mounting plate 7, the crane hook can be hung on the hanging ring 71, and the original four contact points are changed to six contact points, thereby increasing the force points of the crane on the frame 2, increasing the stability of the lifting frame 2, and expanding the scope of use of the device; A connecting block 93 is installed between the connecting plate 1 92 and the clamping plate 1 94; a bolt 95 is installed between the connecting block 93 and the connecting plate 1 92; a connecting block 103 is installed between the connecting plate 2 102 and the clamping plate 2 104; a bolt 105 is installed between the connecting block 2 103 and the connecting plate 2 102; by screwing the bolt 95 and the bolt 105, the connecting block 1 93 and the connecting block 2 103 can be rotated, and then the two clamping plates can be moved in the corresponding connecting blocks respectively, so as to change the angle between the clamping plate 1 94 and the clamping plate 2 104; The clamping plate 1 94 is provided with a fastening bolt 13; two fastening bolts 13 are provided symmetrically in front and back; the clamping plate 2 104 is provided with a fastening bolt 2 14; two fastening bolts 14 are provided symmetrically in front and back; when the clamping plate 1 94 clamps the frame 2, the two fastening bolts 13 can be tightened with the fastening bolts 13 and the fastening bolts 2 14, thereby increasing the fastening of the clamping plate 1 94 and the clamping plate 2 104, and preventing the frame 2 from slipping off from the two clamping plates at a later stage; The working principle of the present invention is as follows: the lifting device of the prefabricated road is transported to the site, the appearance is inspected and the pulleys are assembled, then the steel wire above the frame 2 is connected to the crane hook, the crane slowly raises the frame 2, and the balance of the frame 2 is adjusted by the balancing steel wire ropes 4 on both sides below; after the crane is lifted to a suitable height, the movable pulleys 5 on both sides below the frame 2 are adjusted, the movable pulley 5 hooks are connected, the frame 2 is lifted above the prefabricated road, the movable pulley 5 hooks are connected to the hole grooves of the prefabricated road by a card sleeve, and then the frame 2 is slowly lifted, and the prefabricated road surface is lifted to the designated position, and the installation and positioning of the prefabricated road is completed; when encountering a prefabricated road surface with a larger volume, first adjust the angle of the two clamps, and then twist the worm 11 by holding the handle 12, and the worm 11 drives the turbine 8 1. The turbine 81 drives the gear 82, and the gear 82 drives the movable plate 1 9 and the movable plate 2 10 to move toward each other. The movable plate 1 9 and the movable plate 2 10 drive the connecting plate 1 92 and the connecting plate 2 102 to move. The connecting plate 1 92 and the connecting plate 2 102 drive the clamping plate 1 94 and the clamping plate 2 104 to adjust to a suitable position, and then the worm 11 is screwed in the reverse direction to shrink the two clamping plates, so that the two clamping plates clamp the frame 2, and the mounting plate 7 can be installed. At this time, the crane hook can be hung on the hanging ring 71, and the original four contact points are changed to six contact points, which increases the force points of the crane on the frame 2 and increases the stability of the lifting frame 2; then tighten the two fastening bolts to fix the clamping plates again, and the prefabricated road with a larger volume can be installed.

[0018] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A prefabricated road lifting device, comprising a frame (2), characterized in that: A hanging hole (1) is installed on the top of the frame (2); the hanging holes (1) are provided with four mutually symmetrical holes; the four hanging holes (1) are movably installed at the four corners of the frame (2); A lifting mechanism is installed at the bottom of the frame (2); A mounting plate (7) is installed in the middle of the top of the frame (2), and the mounting plate (7) is movably installed on the top of the frame (2); the interior of the mounting plate (7) is hollow; A movable clamping mechanism is installed inside the mounting plate (7); A hanging ring (71) is installed on the top of the mounting plate (7); the hanging ring (71) is provided with two symmetrical ones. The left and right sides of the mounting plate (7) are provided with movable grooves (74); A threaded hole (75) is formed on the front side of the mounting plate (7).

2. A prefabricated road lifting device according to claim 1, characterized in that: Both the front and rear sides of the mounting plate (7) are provided with mounting blocks (72); the mounting blocks (72) are provided with four mutually symmetrical ones; and the four mounting blocks (72) are arranged in groups of two and are respectively mounted on the front and rear sides of the mounting plate (7).

3. A prefabricated road lifting device according to claim 2, characterized in that: Threaded rods (73) are mounted on the four mounting blocks (72).

4. A prefabricated road lifting device according to claim 3, characterized in that: Abutment plates (76) are fixedly mounted at the bottom of the four threaded rods (73), and the abutment plates (76) abut against the frame body (2).

5. The prefabricated road lifting device according to claim 1, characterized in that: The lifting mechanism comprises a fixed pulley (3), wherein a plurality of the fixed pulleys (3) are provided; the plurality of fixed pulleys (3) are provided in two groups symmetrically on the left and right; the two groups of fixed pulleys (3) are both mounted on the bottom of the frame (2); a balancing steel wire rope (4) is provided on the two groups of fixed pulleys (3), and the dispersed fixed pulleys (3) in the two groups are connected in series through the balancing steel wire rope (4); a movable pulley (5) is installed on the balancing steel wire rope (4), and the movable pulley (5) is provided in a plurality of numbers; a sling (6) is installed at the bottom of each movable pulley (5); a hook is installed at the bottom of the sling (6); the size, number and balancing height of the pulleys on both sides are the same.

6. The prefabricated road lifting device according to claim 1, characterized in that: The movable clamping mechanism comprises a mounting rod (8), wherein the mounting rod (8) is mounted in the middle of the mounting plate (7); a turbine (81) is sleeved on the mounting rod (8); a gear (82) is mounted on the upper side of the turbine (81); a movable plate (9) is mounted on the rear side of the gear (82); a tooth (91) is provided on the inner side of the movable plate (9), and the tooth (91) meshes with the gear (82); a connecting plate (92) is mounted on the left side of the movable plate (9); the connecting plate (92) ) is installed on the right side of the gear (82); a worm (11) is meshingly installed on the left side of the turbine (81), and the worm (11) is installed in the threaded hole (75); a handle (12) is installed on the front side of the worm (11); a movable plate (10) is installed on the front side of the gear (82), and a tooth (101) is provided on the inner side of the movable plate (10); a connecting plate (102) is installed on the right side of the movable plate (10); and a clamping plate (104) is installed on the left side of the connecting plate (92).

7. The prefabricated road lifting device according to claim 6, characterized in that: A connecting block 1 (93) is installed between the connecting plate 1 (92) and the clamping plate 1 (94).

8. The prefabricated road lifting device according to claim 7, characterized in that: A bolt (95) is installed between the connecting block (93) and the connecting plate (92).

9. The prefabricated road lifting device according to claim 6, characterized in that: A second connecting block (103) is installed between the second connecting plate (102) and the second clamping plate (104).

10. The prefabricated road lifting device according to claim 9, characterized in that: A second bolt (105) is installed between the second connecting block (103) and the second connecting plate (102).

Images