Precast concrete slab turnover machine

Abstract

The utility model relates to the technical field of building construction machinery, in particular to a precast concrete slab turnover machine which comprises a supporting chassis, the top of the supporting chassis drives a turnover platform through a hydraulic cylinder, and the front side and the rear side of the turnover platform and the front side and the rear side of the supporting chassis are all connected with auxiliary supporting arms composed of upper supporting arms and lower supporting arms. Supporting brackets are arranged on the outer walls of the front side and the rear side of the supporting chassis, positioning blocks capable of being transversely adjusted are arranged at the tops of the supporting brackets, the bottom ends of the lower supporting arms are connected with the corresponding positioning blocks, a bottom plate is arranged at the position, close to the lower supporting arms, of the supporting chassis, and an inclined pressed plate is movably arranged at the top of the bottom plate; an elastic supporting piece is arranged at the included angle formed between the bottom plate and the inclined pressed plate. According to the precast concrete slab turnover machine, the stability and safety in the turnover process are remarkably improved, the slabs are effectively prevented from shaking and inclining, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction machinery, concretely to a prefabricated concrete slab turnover machine. BACKGROUND

[0002] In modern construction engineering, prefabricated concrete slabs are widely used due to their efficiency, controllable quality, and cost-effectiveness. From factory prefabrication to on-site installation, prefabricated concrete slabs need to go through multiple processing steps, among which turnover is a common and critical operation. Turnover machines serve as auxiliary tools and play an important role in ensuring the safe and accurate conversion of the slabs.

[0003] The existing prefabricated concrete slab turnover equipment has the problem of instability during the turnover process in actual application, especially when handling large or heavy prefabricated slabs. Due to the lack of effective auxiliary support structure, a certain degree of slab shaking or tilting may occur during the turnover process, which not only affects work efficiency but also poses a threat to the safety of the construction site. At the same time, the existing turnover machine equipment does not fully consider the linkage between the turnover action and the support, so that the slab cannot always obtain the best support effect in different stages of turnover, thereby limiting its performance in more extensive application scenarios. SUMMARY

[0004] The utility model aims at providing a prefabricated concrete slab turnover machine to solve the problem of insufficient stability of the current prefabricated concrete slab turnover machine during the turnover process, as the lack of effective auxiliary support structure leads to the problem of easy shaking or tilting of the slab.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a prefabricated concrete slab turnover machine, comprising a support chassis, a turnover platform driven by a hydraulic cylinder on the top of the support chassis, auxiliary support arms composed of upper and lower support arms connected to the front and rear sides of the support chassis, and a support bracket provided on the outer wall of the front and rear sides of the support chassis, a positioning block provided on the top of the support bracket and capable of being adjusted horizontally, the bottom end of the lower support arm connected to the corresponding positioning block, and a bottom plate provided near the lower support arm of the support chassis, an inclined pressure plate movably provided on the top of the bottom plate, and an elastic support member provided between the bottom plate and the inclined pressure plate.

[0006] Preferably, a spiral ring is provided on the middle outer wall of the front and rear sides of the support chassis, and a positioning bolt is inserted into the spiral ring through a threaded structure, and a screw interface that matches the structure of the positioning bolt is provided on the side wall of the positioning block.

[0007] Preferably, the bottom of the positioning block is provided with a guide block, and the top of the supporting bracket is provided with a transverse guide groove matched with the guide block structure.

[0008] Preferably, the outer wall of the supporting base plate is fixed with a horizontal shaft at a position below the base plate, the bottom of the base plate is fixed with a movable sleeve externally sleeved with the horizontal shaft, and the outer end of the horizontal shaft close to the positioning block is externally sleeved with a tension spring.

[0009] Preferably, the bottom end of the elastic supporting piece is provided with a reinforcing rib at the connection with the base plate, and the reinforcing rib is welded and fixed on the top of the base plate.

[0010] Preferably, the two sides of the bottom end of the inclined pressure plate are connected with the base plate through rotating shafts, and the inner side of the inclined pressure plate is matched with the elastic supporting piece.

[0011] Compared with the prior art, the prefabricated concrete slab turnover machine has the advantages that: the optimized auxiliary supporting structure and linkage design significantly improve the stability and safety of the turnover process, effectively prevent the slab from shaking and tilting, and improve the work efficiency. The prefabricated concrete slab turnover machine drives the turnover platform through the hydraulic cylinder, cooperates with the variable-angle auxiliary supporting arm composed of the upper supporting arm and the lower supporting arm, ensures the stability of the turnover action, the pre-adjustment function of the positioning block on the supporting bracket further enhances the adaptability of the equipment to different turnover angles, and the cooperation of the base plate, the inclined pressure plate and the elastic supporting piece provides guarantee for pressure absorption in the turnover process, reduces vibration, and ensures the safety and stability of operation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of the prefabricated concrete slab turnover machine.

[0013] Fig. 2 It is a structural schematic view of the bottom plate of the prefabricated concrete slab turnover machine.

[0014] Fig. 3 It is a structural schematic view of the top of the supporting bracket of the prefabricated concrete slab turnover machine.

[0015] In the figure: 1, supporting base plate; 2, hydraulic cylinder; 3, turnover platform; 4, upper supporting arm; 5, lower supporting arm; 6, base plate; 7, elastic supporting piece; 8, inclined pressure plate; 9, horizontal shaft; 10, movable sleeve; 11, supporting bracket; 12, positioning block; 13, guide block; 14, positioning bolt; 15, spiral ring; 16, reinforcing rib. DETAILED DESCRIPTION

[0016] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figs. 1-3The utility model provides a technical scheme: a prefabricated concrete slab turnover machine, including support chassis 1, support chassis 1 whole is rectangular frame structure, the top of support chassis 1 is driven with turnover platform 3 through hydraulic cylinder 2, turnover platform 3 is right angle shape structure, the front and back two sides of turnover platform 3 are connected with the front and back two sides of support chassis 1 all have the auxiliary support arm that is composed of upper support arm 4 and lower support arm 5, upper support arm 4 and lower support arm 5 are hinged with each other through the rotating pin, and the outer wall of the front and back two sides of support chassis 1 is equipped with the support bracket 11, the top of support bracket 11 is equipped with the positioning block 12 that can be adjusted horizontally, the bottom of lower support arm 5 is connected with the positioning block 12, the connecting place of upper support arm 4 and turnover platform 3 and the connecting place of lower support arm 5 and positioning block 12 are all connected through the hinge, the connecting place of upper support arm 4 and turnover platform 3 is located on the side wall of the upper end portion of turnover platform 3, and support chassis 1 is equipped with bottom plate 6 near lower support arm 5, the top of bottom plate 6 movably is equipped with the inclined pressure plate 8, the included angle formed between bottom plate 6 and inclined pressure plate 8 is equipped with elastic support 7, the support chassis 1 of this structure is as the basic structure of entire turnover machine, the telescopic action of hydraulic cylinder 2 drives turnover platform 3 to carry out angle adjustment, in the turnover operation process of turnover platform 3, the auxiliary support arm that is composed of upper support arm 4 and lower support arm 5 can automatically adjust the included angle between two arms according to the change of turnover angle, guarantees the smooth transition in the turnover process, and positioning block 12 can be adjusted to the appropriate position in advance on the top of support bracket 11, so that lower support arm 5 forms the appropriate initial included angle between positioning block 12 and upper support arm 4, to keep the best support effect, to ensure that each turnover can provide stable support, at the same time, along with the angle change of turnover platform 3 in the turnover process, inclined pressure plate 8 will be correspondingly subjected to the pressure from the prefabricated plate above, and this pressure is transmitted to elastic support 7, and elastic support 7 can effectively absorb and buffer this pressure, thereby reducing the vibration in the turnover process, guaranteeing that the turnover process is more stable and safe, solve the problem that the board shakes or inclines due to lack of effective auxiliary support in the prior art, improve the work efficiency, also greatly improve the safety of construction site, the middle outer wall of the front and back two sides of support chassis 1 is equipped with screw ring 15, and the inside of screw ring 15 is inserted with positioning bolt 14 through the thread structure, and the side wall of positioning block 12 is equipped with the screw interface that is consistent with the structure of positioning bolt 14, this structure ensures that positioning block 12 can be accurately fixed at the required position, namely the operator can adjust the extension length of positioning bolt 14 in screw ring 15 in advance, thereby changing the position of positioning block 12, so that lower support arm 5 bottom end and positioning block 12 can form the angle that is most suitable for the current turnover task when being connected, the bottom of positioning block 12 is equipped with guide block 13, and the top of support bracket 11 is equipped with the horizontal guide groove that is matched with the structure of guide block 13, the structure positioning block 12 can smoothly slide along the horizontal guide groove on the top of support bracket 11 through guide block 13, guaranteeing the straightness and stability in the movement process of positioning block 12,The outer wall of the support base 1 is fixed with a horizontal shaft 9 below the bottom plate 6, and the bottom of the bottom plate 6 is fixed with a movable sleeve 10 movably sleeved outside the horizontal shaft 9, and the outer sleeve of the horizontal shaft 9 near one end of the positioning block 12 is sleeved with a tension spring, so that when the bottom plate 6 is also subjected to the pressure transmitted from the upper prefabricated plate, the bottom plate 6 drives the movable sleeve 10 to slide along the outside of the horizontal shaft 9, and the tension spring sleeved outside the horizontal shaft 9 near the positioning block 12 end generates expansion and contraction change, so that the bottom plate 6 can flexibly respond when bearing different intensity pressure, and through the elastic effect of the tension spring, the pressure fluctuation from the upper can be effectively buffered and absorbed, so that the stability of the bottom plate 6 is maintained, and at the same time, the bottom plate 6 can be fine-tuned within a certain range to adapt to the angle change in the overturning process, to ensure that the pressure transmission between the inclined pressure plate 8 and the elastic support 7 is more uniform and stable, and the bottom end of the elastic support 7 is provided with a reinforcing rib 16 at the connection with the bottom plate 6, and the reinforcing rib 16 is welded and fixed on the top of the bottom plate 6, so that the reinforcing rib 16 can effectively disperse the pressure, prevent the connection between the elastic support 7 and the bottom plate 6 from being deformed or damaged due to stress concentration, thereby enhancing the structural strength of the installation position of the elastic support 7, and ensuring the durability of the entire support structure under long-term repeated pressure, and the two sides of the bottom end of the inclined pressure plate 8 are connected with the bottom plate 6 through the rotating shaft, and the inner side of the inclined pressure plate 8 is attached to the elastic support 7, so that when the pressure acts on the inclined pressure plate 8, it can rotate around the rotating shaft to ensure that the pressure can be smoothly transmitted to the elastic support 7.

[0018] Working principle: when using the prefabricated concrete plate turnover machine, first, the positioning block 12 is slid along the horizontal guide groove on the top of the support bracket 11 to the appropriate position through the guide block 13, to ensure that the bottom end of the lower supporting arm 5 can form the most suitable angle for the current overturning task when connected with the positioning block 12, then the operator can adjust the extension length of the positioning bolt 14 in the screw ring 15 to further fix the position of the positioning block 12, after the above preparation work is completed, the prefabricated concrete plate to be overturned is placed on the turnover platform 3, and the hydraulic cylinder 2 starts to work to drive the turnover platform 3 to adjust the angle through the expansion and contraction action, and with the change of the angle of the turnover platform 3, the auxiliary supporting arm composed of the upper supporting arm 4 and the lower supporting arm 5 automatically adjusts the included angle between the two arms according to the change of the overturning angle, in this process, the inclined pressure plate 8 will be subjected to pressure from the upper prefabricated plate, and the pressure will be transmitted to the elastic support 7, and the elastic support 7 will effectively buffer and absorb the pressure through its elastic properties, reducing the vibration in the overturning process, at the same time, when the bottom plate 6 is subjected to the pressure transmitted from the upper prefabricated plate, it will drive the movable sleeve 10 to slide along the outside of the horizontal shaft 9, and the tension spring sleeved outside the horizontal shaft 9 near the positioning block 12 end generates expansion and contraction change, to ensure that the bottom plate 6 can flexibly respond when bearing different intensity pressure, and maintain its stability, thereby completing a series of work.

[0019] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A precast concrete slab turner comprising a support chassis (1) whose top is driven with a turntable (3) by means of hydraulic cylinders (2), characterised in that: The front and rear sides of the turnover platform (3) are connected with auxiliary support arms composed of upper support arms (4) and lower support arms (5), and the outer walls of the front and rear sides of the support chassis (1) are provided with support brackets (11), the top of the support bracket (11) is provided with a transversely adjustable positioning block (12), the bottom end of the lower support arm (5) is connected with the corresponding positioning block (12), and the position close to the lower support arm (5) of the support chassis (1) is provided with a bottom plate (6), the top of the bottom plate (6) is movably provided with an inclined pressure plate (8), and the included angle formed between the bottom plate (6) and the inclined pressure plate (8) is provided with an elastic support (7).

2. A precast concrete panel turner as claimed in claim 1 wherein: The middle outer wall of the front and rear sides of the support chassis (1) is provided with a spiral ring (15), the inside of the spiral ring (15) is inserted with a positioning bolt (14) through a threaded structure, and the side wall of the positioning block (12) is provided with a threaded interface consistent with the structure of the positioning bolt (14).

3. A precast concrete panel turner as claimed in claim 1 wherein: The bottom of the positioning block (12) is provided with a guide block (13), and the top of the support bracket (11) is provided with a transverse guide groove matched with the structure of the guide block (13).

4. A precast concrete panel turner as claimed in claim 1 wherein: The outer wall of the support chassis (1) is fixed with a horizontal shaft (9) below the bottom plate (6), the bottom of the bottom plate (6) is fixed with a movable sleeve (10) movably sleeved outside the horizontal shaft (9), and the end of the horizontal shaft (9) close to the positioning block (12) is externally sleeved with a stretching spring.

5. A precast concrete panel tumbler as claimed in claim 1 wherein: The bottom end of the elastic support (7) is provided with a reinforcing rib (16) at the connection with the bottom plate (6), and the reinforcing rib (16) is welded and fixed on the top of the bottom plate (6).

6. A precast concrete panel tumbler as claimed in claim 1 wherein: The bottom end of the inclined pressure plate (8) is connected with the bottom plate (6) through a rotating shaft, and the inner side of the inclined pressure plate (8) is in close contact with the elastic support (7).

Images