Inclined lifting appliance for slope protection framework prefabricated laminated slab

Abstract

The utility model relates to the technical field of lifting appliances, and provides a slope protection framework prefabricated laminated slab inclined lifting appliance aiming at the situation that a traditional prefabricated laminated slab is inconvenient to lift and place, the slope protection framework prefabricated laminated slab inclined lifting appliance comprises a lifting beam, electric hoists are installed at the two ends of the lifting beam correspondingly, plate clamping pieces are connected to the ends of electric hoist cables correspondingly, and plate clamping grooves are formed in the plate clamping pieces; the plate clamping groove is used for allowing the end of the prefabricated laminated plate to be embedded, the plate clamping piece is further provided with a locking piece, and the locking piece is used for limiting the end of the prefabricated laminated plate to be separated from the plate clamping groove. The hoisting device has the effect of facilitating inclined hoisting of the prefabricated laminated slab.

Description

Technical Field

[0001] This application relates to the technical field of lifting devices, and in particular to an inclined lifting device for precast composite slabs of slope protection frame. Background Technology

[0002] In related technologies, the casting structure of the slope protection frame consists of two side molds and a precast composite slab. The two side molds are supported on the slope to form a casting gap, and the precast composite slab is supported on the top of the casting gap formed by the two side molds and parallel to the slope surface. During the casting construction of the slope protection frame, it serves as the top mold of the casting structure and becomes part of the slope protection frame structure after the casting is completed.

[0003] During the installation process, the precast composite slabs need to be lifted by a crane using lifting equipment and placed above the pouring gap formed by the two corresponding side forms before being supported and fixed.

[0004] Due to limitations in construction techniques, precast composite slabs need to be parallel to the sloping surface of the slope when they are installed. However, conventional lifting equipment can only lift precast composite slabs horizontally. The angle of the precast composite slabs also needs to be manually adjusted during installation, making the overall operation quite inconvenient. Therefore, there is room for improvement. Utility Model Content

[0005] To facilitate the tilting and placement of precast composite slabs, this application provides a tilting lifting tool for precast composite slabs of slope protection frames.

[0006] This application provides a tilting lifting device for precast composite slabs used in slope protection frames, which adopts the following technical solution:

[0007] A tilting lifting device for precast composite slabs of slope protection frame includes a lifting beam, with electric hoists installed at both ends of the lifting beam. The ends of the electric hoist cables are connected to clamping plates. The clamping plates are formed with clamping grooves for the end of the precast composite slab to be inserted. The clamping plates are also provided with locking components to prevent the end of the precast composite slab from disengaging from the clamping grooves.

[0008] By adopting the above technical solution, when lifting precast composite slabs with a lifting device, the two ends of the precast composite slab are first embedded into the slots of the clamping plates at both ends of the lifting beam, and the locking device is used to prevent the precast composite slab from leaving the slots. Then, the electric hoists at both ends of the lifting beam control the raising and lowering of the corresponding cables to make the precast composite slab in an inclined state, thereby adapting to the inclined slope of the slope protection. Compared with the traditional method of lifting precast composite slabs, there is no need to manually adjust the inclination angle of the precast composite slab, which effectively improves the convenience and construction efficiency of the composite slab lifting construction.

[0009] Preferably, the top of the electric hoist is connected to a connecting pipe, which is sleeved on the lifting beam and welded to the lifting beam for fixation.

[0010] By adopting the above technical solution, the electric hoist is securely connected to the lifting beam, which is beneficial for the two electric hoists to work together with the corresponding clamping plates to securely lift the precast composite slab.

[0011] Preferably, the locking member includes a locking bolt threaded to the outside of the clamping plate, one end of which extends into the clamping plate groove.

[0012] By adopting the above technical solution, after the end of the precast composite slab is inserted into the slot of the clamping plate, the locking bolt is tightened until it presses against the surface of the precast composite slab located in the slot, which can prevent the end of the precast composite slab from leaving the slot and improve the stability of the precast composite slab during hoisting.

[0013] Preferably, a flexible pad is connected to one end of the locking bolt located in the slot of the clamping plate.

[0014] By adopting the above technical solution, the flexible pad restricts direct contact between the locking bolt and the precast composite slab, reducing the damage to the precast composite slab when locking and limiting it in the slot. On the other hand, it helps to increase the friction between the locking bolt and the precast composite slab, making it easier for the locking bolt to lock and limit the precast composite slab more securely.

[0015] Preferably, the electric hoist is connected to a connecting pipe at the top, the connecting pipe is sleeved on the lifting beam, and a limiting bolt is threaded through the top of the connecting pipe, the limiting bolt being tightened against the lifting beam.

[0016] By adopting the above technical solution, the position of the electric hoist can be adjusted. When the size and specifications of the precast composite slab change, the relative distance between the two electric hoists can be adjusted by sliding the connecting pipes of the two electric hoists along the lifting beam, so that the corresponding clamping plates of the two electric hoists can be better adapted to the precast composite slab.

[0017] Preferably, both ends of the lifting beam are connected to limit blocks, and the connecting pipes of the two electric hoists are located between the two limit blocks.

[0018] By adopting the above technical solution, the limiting blocks at both ends of the lifting beam are used to limit the connecting pipes of the electric hoists at both ends of the lifting beam, so as to prevent the connecting pipes on the electric hoists from moving relative to the lifting beam during subsequent use, which would cause the electric hoists to detach from the end of the lifting beam. This helps to improve the stability and safety of the lifting device structure.

[0019] Preferably, the end of the limiting block is coaxially connected to a connecting screw, and the connecting screw is threaded to the outside of the lifting beam.

[0020] By adopting the above technical solution, the limit block and the lifting beam can be detachably connected. When it is necessary to remove the connecting pipe on the electric hoist from the lifting beam or put it into the lifting beam, the limit block can be removed from the lifting beam so that the connecting pipe can be installed and removed from the lifting beam.

[0021] Preferably, the limiting block is surrounded by a flexible buffer sleeve.

[0022] By adopting the above technical solution and setting a flexible buffer sleeve, it is beneficial to reduce the rigid collision between the connecting pipe and the limiting block during the subsequent sliding connecting pipe process, which could lead to damage to the connecting pipe and the limiting block.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When hoisting the precast composite slab, after inserting both ends of the precast composite slab into the slots of the clamping plates at both ends of the hoisting beam, the precast composite slab can be tilted by raising and lowering the corresponding cables of the electric hoists at both ends of the hoisting beam. This allows it to adapt to the slope surface without the need for manual adjustment of the tilt angle of the precast composite slab, which is beneficial for the tilting hoisting of the precast composite slab and facilitates its installation and placement.

[0025] 2. By setting the locking device on the clamping plate, after the end of the precast composite slab is inserted into the clamping plate groove of the corresponding clamping plate, the locking bolt on the clamping plate is rotated and the locking bolt is pressed against the precast composite slab, which can limit the precast composite slab and help prevent the precast composite slab from falling off the lifting device during subsequent hoisting.

[0026] 3. The flexible pad at the end of the locking bolt helps to prevent the locking bolt from directly contacting the end of the precast composite slab when it is fixed in the slot of the clamping plate, thus preventing damage to the precast composite slab. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the tilting lifting device used in Embodiment 1.

[0028] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0029] Figure 3 This is a schematic diagram of Embodiment 1 illustrating the state of prefabricated composite slabs being lifted and placed using an inclined lifting device.

[0030] Figure 4 This is a schematic diagram illustrating the overall structure of the tilting lifting device in Embodiment 2.

[0031] Figure 5 yes Figure 4 Enlarged schematic diagram of section B.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Lifting beam; 10. Threaded hole; 11. First connecting lug; 12. Connecting cable; 2. Electric hoist; 21. Connecting pipe; 211. Limiting bolt; 22. Anti-detachment buckle; 3. Clamping plate; 30. Clamping plate groove; 31. Second connecting lug; 32. Locking bolt; 4. Limiting block; 41. Connecting screw; 42. Flexible buffer sleeve. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses an inclined lifting device for prefabricated composite slabs of slope protection frame.

[0036] Example 1

[0037] A type of inclined lifting tool for precast composite slabs of slope protection frame, referring to Figure 1 and Figure 2 The system includes a lifting beam 1, with electric hoists 2 installed at both ends of the lifting beam 1. The ends of the cables of the electric hoists 2 are connected to clamping plates 3. The clamping plates 3 are formed with clamping grooves 30 for the ends of the precast composite slabs to be inserted.

[0038] Reference Figure 2 and Figure 3 After inserting both ends of the precast composite slab into the slots 30 of the clamping plate 3 connected to the two electric hoists 2, the height position of the corresponding clamping plate 3 is adjusted by controlling the cable winding and unwinding of the electric hoist 2, thereby adjusting the tilt angle of the precast composite slab so that the precast composite slab can be parallel to the slope surface of the slope protection, which facilitates the subsequent installation and placement of the precast composite slab.

[0039] Reference Figure 1 and Figure 2 In this embodiment, the lifting beam 1 is made of high-strength square steel. In other embodiments, the lifting beam 1 can also be made of double-section I-beams. The top two ends of the lifting beam 1 are welded with first connecting lugs 11. The connecting lugs are connected to connecting cables 12 through fasteners. The connecting cables 12 are used to connect with the hook of the crane to achieve a stable connection between the lifting device and the crane.

[0040] The electric hoist 2 is equipped with a connecting pipe 21 at its top. The electric hoist 2 is fixed to the bottom of the connecting pipe 21 by bolts. The connecting pipe 21 is sleeved on the lifting beam 1 and welded to the lifting beam 1. This ensures a reliable connection between the electric hoist 2 and the lifting beam 1, preventing the electric hoist 2 from becoming loose during the subsequent lifting of the precast composite slab.

[0041] The top of the card plate 3 is welded with a second connecting lug 31 corresponding to the electric hoist 2. The end of the electric hoist 2 cable is fastened to the second connecting lug 31 by an anti-detachment buckle 22, so as to achieve a stable connection between the electric hoist 2 cable and the card plate.

[0042] The top of the clamping plate 3 is provided with several locking elements, which are used to prevent the ends of the prefabricated composite plates from disengaging from the clamping plate groove 30. Each locking element includes a locking bolt 32 threaded through the outside of the clamping plate, located on one side of the clamping plate groove 30 with one end extending into the groove 30. A flexible pad is fixed to the end of the locking bolt 32 located within the groove 30; in this embodiment, the flexible pad is a rubber pad.

[0043] After the precast composite slab end is inserted into the clamping groove 30, the locking bolt 32 is rotated so that the flexible pad at the end of the locking bolt 32 approaches and abuts against the precast composite slab, thereby securing the precast composite slab within the clamping groove 30. The flexible pad serves two purposes: firstly, it limits wear on the end of the precast composite slab caused by the locking bolt 32; secondly, it increases the friction between the locking bolt 32 and the precast composite slab, allowing the locking bolt 32 to better limit the position of the precast composite slab end within the clamping groove 30.

[0044] The implementation principle of Example 1 is as follows: When the precast composite slab is lifted by the lifting equipment, the two ends of the precast composite slab are respectively inserted into the slots 30 of the clamping plate parts 3 at both ends of the lifting beam 1. After the ends of the precast composite slab are locked and limited by the locking bolts 32 on the clamping plate parts 3, the height position of the corresponding clamping plate parts 3 is adjusted by adjusting the cable of each of the two electric hoists 2 until the tilt angle of the precast composite slab is parallel to the slope surface, so as to realize the tilted lifting of the precast composite slab, which facilitates the subsequent installation and placement of the precast composite slab.

[0045] Example 2

[0046] The difference between Example 2 and Example 1 is that:

[0047] Reference Figure 4 and Figure 5 The electric hoist 2 is equipped with a connecting pipe 21 at its top, and the top of the electric hoist 2 is fixed to the bottom of the connecting pipe 21 by bolts. The connecting pipe 21 is sleeved on the lifting beam 1, and several limiting bolts 211 are threaded through the top of the connecting pipe 21. The ends of the limiting bolts 211 extend into the inner cavity of the connecting pipe 21 and abut against the lifting beam 1 to securely connect the electric hoist 2 to the lifting beam 1. At the same time, the electric hoist 2 can be adjusted laterally along the lifting beam 1. When the size and specifications of the precast composite slab change, the relative distance between the two electric hoists 2 can be adjusted by sliding the connecting pipes 21 of the electric hoists 2 at both ends of the lifting beam 1, so that the corresponding clamping plates 3 of the two electric hoists 2 can better adapt to the precast composite slab, which helps to improve the overall applicability of the lifting device.

[0048] Reference Figure 4 and Figure 5 Limiting blocks 4 are protruding from the outer sides of both ends of the lifting beam 1. The connecting pipes 21 of the two electric hoists 2 are located between the limiting blocks 4 at both ends of the lifting beam 1. The limiting blocks 4 are used to limit the connecting pipes 21 of the two electric hoists 2 to prevent the connecting pipes 21 from moving relative to the lifting beam 1 during subsequent use of the lifting equipment, which could cause the connecting pipes 21 to slide out of the end of the lifting beam 1.

[0049] Reference Figure 4 and Figure 5 Each end of the limiting block 4 is coaxially connected to a connecting screw 41, and the lifting beam 1 has a threaded hole 10 corresponding to the connecting screw 41, with the connecting screw 41 threaded into the threaded hole 10. This allows the limiting block 4 to be detachably connected to the lifting beam 1. When it is necessary to insert or move the connecting pipe 21 into the lifting beam 1, the limiting block 4 can be removed from the lifting beam 1 to facilitate the installation and removal of the connecting pipe 21.

[0050] Reference Figure 4 and Figure 5 The limiting block 4 is also fitted with a flexible buffer sleeve 42. Specifically, the flexible buffer sleeve 42 is a rubber sleeve, which helps to limit the rigid collision between the connecting pipe 21 and the limiting block 4 when the electric hoist 2 is lifted to the position, thus preventing damage to the connecting pipe 21 and the limiting block 4.

[0051] The principle of Example 2 is the same as that of Example 1, so it will not be described again.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tilting lifting device for precast composite slabs of slope protection frame, characterized in that: The device includes a lifting beam (1), with electric hoists (2) installed at both ends of the lifting beam (1). The cable ends of the electric hoists (2) are connected to clamping plates (3). The clamping plates (3) are formed with clamping grooves (30). The clamping grooves (30) are used for the insertion of the ends of the precast composite slabs. The clamping plates (3) are also provided with locking components, which are used to prevent the ends of the precast composite slabs from disengaging from the clamping grooves (30).

2. The slope protection framework prefabricated laminated slab tilting hoist according to claim 1, characterized in that: The electric hoist (2) is connected to a connecting pipe (21) at the top. The connecting pipe (21) is sleeved on the lifting beam (1) and welded to the lifting beam (1).

3. The slope protection framework prefabricated laminated slab tilting hoist according to claim 1, characterized in that: The locking component includes a locking bolt (32) threaded to the outside of the clamping plate (3), one end of which extends into the clamping plate groove (30).

4. The slope protection framework prefabricated laminated slab tilting hoist according to claim 3, characterized in that: The locking bolt (32) has a flexible pad connected to one end located in the slot (30).

5. The slope protection framework prefabricated laminated slab tilting hoist according to claim 1, characterized in that: The electric hoist (2) is connected to a connecting pipe (21) at the top. The connecting pipe (21) is sleeved on the lifting beam (1). A limiting bolt (211) is threaded through the top of the connecting pipe (21). The limiting bolt (211) is abutted against the lifting beam (1).

6. The slope protection framework prefabricated laminated slab tilting hoist according to claim 5, characterized in that: Both ends of the lifting beam (1) are connected to limit blocks (4), and the connecting pipes (21) of the two electric hoists (2) are located between the two limit blocks (4).

7. The slope protection framework prefabricated laminated slab tilting hoist according to claim 6, characterized in that: The connecting screw (41) is coaxially connected to the end of the limiting block (4), and the connecting screw (41) is threaded to the outside of the lifting beam (1).

8. The slope protection framework prefabricated laminated slab tilting hoist according to claim 7, characterized in that: The limiting block (4) is surrounded by a flexible buffer sleeve (42).

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