Pouring-collapse-preventing height-adjustable supporting device for floor support plate

Abstract

The utility model relates to the technical field of pouring engineering devices, in particular to a height-adjustable supporting device for preventing pouring collapse of a floor support plate, which comprises a rotating grab handle, a screw rod and a rotating shaft are respectively arranged at two ends of the rotating grab handle, the screw rod is sleeved by an upper supporting cylinder, and the rotating shaft is sleeved by a lower supporting cylinder; a rotating shaft supporting bearing is arranged between the lower supporting cylinder and the rotating shaft; the screw rod comprises a threaded part and a rotary supporting part, and a screw rod supporting bearing is arranged between the rotary supporting part adjacent to the rotary grab handle and the upper supporting cylinder; a lifting cylinder is further arranged in the upper supporting cylinder in a sleeved mode, a lead screw can be sleeved with the lifting cylinder, and a lead screw nut seat matched with the threaded portion is arranged on the threaded portion and fixedly connected with the lifting cylinder. And the top of the lifting cylinder is connected with an elastic lifting device. The device is simple in structure, easy to operate by a single person, capable of adapting to adjustment of different heights, free to fold and unfold, capable of achieving flexible supporting of the bottom of the floor support plate, free of damage to the bottom of the floor support plate and capable of effectively improving the pouring efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pouring engineering devices, in particular to a height-adjustable supporting device for preventing pouring collapse of a floor deck. Background Art

[0002] Floor decking, also known as corrugated steel sheet, steel decking, steel floor decking. The earliest name was corrugated steel sheet, a general term for all steel sheets that are pressed and formed by a press machine. Floor decking is made of galvanized steel sheet that is cold-bent by roller pressing. Its cross-section is V-shaped, U-shaped, trapezoidal or similar waveforms. It is mainly used as a permanent formwork, but can also be selected for other purposes. The earliest corrugated steel sheet was mainly used for the roof panels of factory roofs. Later, corrugated steel sheets used for floors were gradually classified as floor decking.

[0003] At the construction site, the floor decking lines are laid out one after another on the top of the building frame, and then concrete is poured on the top of the floor decking for pouring. For locations with larger spans, as concrete is continuously poured, the pressure on the floor decking in the area will become greater and greater, which will cause the floor decking to break and cause a pouring collapse accident.

[0004] The existing solution is to pre-erect scaffolding at the bottom of the floor decking with a larger span for support. This method is not only labor-intensive, but also time-consuming and labor-intensive. After the pouring is completed, it needs to be disassembled and removed again. During the operation, the bottom of the floor decking will be scratched and damaged, greatly reducing the efficiency of pouring.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and to provide a height-adjustable support device for preventing floor decking from collapsing during pouring, so as to solve the technical problems existing in the traditional scaffolding support scheme, such as high reliance on manual labor, time-consuming and labor-intensive, and the need to disassemble and remove after pouring, which greatly reduces the efficiency of pouring.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A height-adjustable support device for preventing pouring collapse of a floor deck, comprising a rotating handle, wherein two ends of the rotating handle are respectively vertically provided with a screw rod and a rotating shaft, wherein the screw rod is sleeved by an upper supporting tube, and the rotating shaft is sleeved by a lower supporting tube;

[0009] A rotating shaft support bearing is arranged between the cylinder wall of the lower supporting cylinder and the outer wall of the rotating shaft;

[0010] The screw rod comprises a threaded portion arranged in the middle section and a rotation support portion arranged at both ends, and a screw rod support bearing is arranged between the rotation support portion adjacent to the rotation handle and the inner wall of the upper support cylinder;

[0011] A lifting cylinder is also sleeved in the upper support cylinder, and the lifting cylinder can sleeve the screw rod, and a screw rod nut seat matching with it is arranged on the threaded portion of the screw rod, and the outer wall of the screw rod nut seat is fixedly connected to the inner wall of the lifting cylinder;

[0012] The top of the lifting cylinder is connected with an elastic lifting device.

[0013] Furthermore, a C-shaped handle is provided on the outer wall of the upper support tube and the lower support tube, and the C-shaped handle spans across the rotating handle.

[0014] Furthermore, a vertical guide groove is provided on the inner wall of the upper support cylinder, and correspondingly, a guide ridge matching the guide groove is provided on the outer wall of the lifting cylinder.

[0015] Furthermore, there are three guide grooves which are arranged at equal intervals on the inner wall of the upper support tube; correspondingly, there are three guide ridges which match the three guide grooves respectively.

[0016] Furthermore, a limit stopper is provided on the rotation support portion located at the top of the screw rod.

[0017] Furthermore, there are at least two screw nut seats.

[0018] Furthermore, the elastic lifting device includes a tray and a tray base, the top of the tray base is provided with a tray groove for the tray to be embedded, a plurality of screw through holes that can penetrate the tray base are provided along the bottom wall of the tray groove, the screw is inserted along the bottom of the screw through hole, and after passing through the screw through hole, it is screwed to the bottom surface of the tray;

[0019] A return spring is sleeved on the screw rod corresponding to the bottom surface of the tray and the bottom wall of the tray groove.

[0020] Furthermore, a limiting nut is provided at the bottom end of the screw rod, and the outer diameter of the limiting nut is larger than the inner diameter of the screw rod through hole.

[0021] Furthermore, a connecting seat with a connecting groove is provided at the axial center position of the bottom surface of the tray base, and the connecting groove can be sleeved on the top of the lifting cylinder to realize vertical connection between the tray base and the lifting cylinder.

[0022] Furthermore, an inner thread is provided on the inner wall of the connecting groove, and an outer wall thread matching the inner thread is provided on the top outer wall of the lifting cylinder. The lifting cylinder is vertically connected to the pallet base by screwing the outer wall thread and the inner thread of the groove together. Beneficial Effects

[0023] The height-adjustable support device for preventing pouring collapse of floor decks provided by the utility model can be used to coordinately support different areas with larger spans by increasing the number of the support devices. The device is not only simple in structure and easy to operate by one person, but also can adapt to different height adjustments and can be freely retracted and extended. It can also achieve flexible support for the bottom of the floor deck without causing damage to the bottom of the floor deck, and can effectively improve the efficiency of pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a height-adjustable support device for preventing pouring collapse of a floor deck according to the utility model;

[0025] Figure 2 This is an exploded view of the interior of the height-adjustable support device for preventing pouring collapse of a floor deck according to the utility model;

[0026] Figure 3 It is a cross-sectional view of the height-adjustable support device for preventing pouring collapse of a floor deck according to the utility model;

[0027] Figure 4 This is a structural schematic diagram of a height-adjustable support device with a C-shaped handle for preventing pouring collapse of a floor deck according to the utility model.

[0028] Graphic marking:

[0029] 1-rotating handle, 101-anti-slip ribs;

[0030] 2-screw rod, 201-threaded part, 202-rotation support part;

[0031] 3- Rotating shaft;

[0032] 4-upper support cylinder;

[0033] 5-lower support cylinder;

[0034] 6-lifting cylinder;

[0035] 7-elastic lifting device, 701-tray, 702-tray base, 703-tray groove, 704-screw through hole, 705-screw, 706-reset spring, 707-limiting nut, 708-connecting groove, 709-connecting seat, 710-, 711-;

[0036] 8-rotating shaft support bearing;

[0037] 9-screw support bearing;

[0038] 10-screw nut seat;

[0039] 11- base;

[0040] 12-C-shaped handle;

[0041] 13-Limiting baffle. DETAILED DESCRIPTION

[0042] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] like Figure 1 and 3 As shown, a height-adjustable support device for preventing pouring collapse of a floor deck comprises a rotating handle 1, and a screw rod 2 and a rotating shaft 3 are respectively vertically arranged at both ends of the rotating handle 1, the screw rod 2 is sleeved by an upper supporting tube 4, and the rotating shaft 3 is sleeved by a lower supporting tube 5;

[0044] A rotating shaft support bearing 8 is provided between the cylinder wall of the lower supporting cylinder 5 and the outer wall of the rotating shaft 3, and is used to realize the free rotation of the rotating shaft 3 relative to the lower supporting cylinder 5 under the drive of the rotating handle 1;

[0045] The screw rod 2 includes a threaded portion 201 disposed in the middle section and a rotation support portion 202 disposed at both ends. A screw rod support bearing 9 is disposed between the rotation support portion 202 adjacent to the rotation handle 1 and the inner wall of the upper support tube 4, and is used to realize the free rotation of the screw rod 2 relative to the upper support tube 4 under the drive of the rotation handle 1.

[0046] A lifting cylinder 6 is also sleeved in the upper support cylinder 4, and the lifting cylinder 6 can sleeve the screw rod 2, and a screw rod nut seat 10 matching with it is provided on the threaded portion 201 of the screw rod 2, and the outer wall of the screw rod nut seat 10 is fixedly connected to the inner wall of the lifting cylinder 6; under the drive of the rotating handle 1, the screw rod 2 rotates synchronously with the rotating handle 1, and drives the screw rod nut seat 10 to drive the lifting cylinder 6 to perform vertical lifting relative to the upper support cylinder 4;

[0047] The top of the lifting cylinder 6 is connected with an elastic lifting device 7, and the elastic lifting device 7 is used to act on the bottom surface of the floor deck to form a bottom support for the floor deck;

[0048] In this embodiment, a base 11 may be provided at the bottom end of the lower support tube 5 for contacting the ground so as to realize vertical arrangement of the lower support tube 5 with the ground. Other structures of the base 11 may also be selected according to actual working conditions, such as a base in a decomposed triangular shape for supporting an inclined surface.

[0049] In this embodiment, the outer wall of the rotating handle 1 is provided with a plurality of anti-skid ribs 101 to prevent slipping during manual rotation.

[0050] like Figure 4 As shown, a C-shaped handle 12 is provided on the outer wall of the upper support tube 4 and the lower support tube 5 , and the C-shaped handle 12 spans across the rotating handle 1 .

[0051] It should be noted that the C-shaped handle 12 in this embodiment will not hinder the rotation operation of the rotating handle 1, and can also be used as a handle for carrying the device to facilitate shifting; on the other hand, the C-shaped handle 12 can also ensure that the upper support tube 4 and the lower support tube 5 maintain a unified posture and will not rotate synchronously due to the rotation drive of the rotating handle 1, that is, it ensures that the rotating handle 1 can only drive the synchronous rotation of the screw rod 2 and the rotating shaft 3 located in the upper support tube 4 and the lower support tube 5.

[0052] As an optimization of the upper support cylinder 4 and the lifting cylinder 6 in this embodiment, a vertical guide groove is also provided on the inner wall of the upper support cylinder 4, and correspondingly, a guide rib matching the guide groove is provided on the outer wall of the lifting cylinder 6. The guide groove and the guide rib are not shown in the figure of this embodiment, which can be understood as a slide rail to ensure that the lifting cylinder 6 can be vertically lifted relative to the upper support cylinder 4. Under the drive of the screw 2, the lifting cylinder 6 is lifted along the upper support cylinder 4. At this time, the guide rib slides along the guide groove. This structure can ensure the stable lifting of the lifting cylinder 6, and can also ensure that the lifting cylinder 6 will not rotate relative to the upper support cylinder 4 under the drive of the screw 2.

[0053] like Figure 3 As shown, as a specific embodiment of the structure, there are three guide grooves, which are arranged at equal intervals on the inner wall of the upper support tube 4; correspondingly, there are three guide ridges, which match the three guide grooves respectively.

[0054] In this embodiment, a limit baffle 13 is provided on the rotation support portion 202 located at the top of the screw rod 2 , and the limit baffle 13 is used to block the screw rod nut seat 10 located at the top to prevent it from detaching from the threaded portion 201 .

[0055] In order to ensure stable driving of the lifting cylinder 6, there are at least two screw nut seats 10 in this embodiment.

[0056] like Figure 2 and 3 As shown, as an optimization of the elastic lifting device 7 in this embodiment, the elastic lifting device 7 includes a tray 701 and a tray base 702, the top of the tray base 702 is provided with a tray groove 703 for the tray 701 to be embedded, a plurality of screw through holes 704 that can penetrate the tray base 702 are provided along the bottom wall of the tray groove 703, and screws 705 are inserted from below the screw through holes 704, penetrate the screw through holes 704, and are screwed to the threaded holes provided on the bottom surface of the tray 701;

[0057] A return spring 706 is sleeved on the screw rod 705 corresponding to the bottom surface of the tray 701 and the bottom wall of the tray groove 703;

[0058] Specifically, one end of the return spring 706 contacts the bottom surface of the tray 701, and the other end contacts the bottom wall of the tray groove 703, so that an elastic space can be formed between the tray 701 and the bottom wall of the tray groove 703 in the initial state;

[0059] When the upper part of the tray 701 is subjected to force, it will move downward relative to the tray groove 703, and drive the screw rod 705 to move downward along the screw rod through hole 704, and at this time, the return spring 706 is compressed;

[0060] This structure can realize elastic support between the tray 701 and the bottom surface of the floor deck, and compared with traditional scaffolding support, it will not cause damage to the bottom surface of the floor deck.

[0061] In addition, a limiting nut 707 is provided at the bottom end of the screw 705, and the outer diameter of the limiting nut 707 is larger than the inner diameter of the screw through hole 704;

[0062] This structure can effectively prevent the screw 705 from completely penetrating the screw through hole 704, thereby causing the pallet 701 to be completely separated from the pallet base 702 during the tilting transportation process;

[0063] As a specific embodiment of the structure, the tray base 702 and the tray 701 in this embodiment are both circular, and there are three screw through holes 704, which are arranged on the tray base 702 at equal intervals, and the formed circle is concentric with the tray base 701.

[0064] It should be noted that the tray 701 in this embodiment can be made of metal material or elastic rubber material.

[0065] like Figure 2 and 3 As shown, as an optimization of the connection between the elastic lifting device 7 and the lifting cylinder 6 in this embodiment, a connecting seat 709 with a connecting groove 708 is provided at the axial position of the bottom surface of the tray base 702, and the connecting groove 708 can be sleeved on the top of the lifting cylinder 6 to realize the vertical connection between the tray base 702 and the lifting cylinder 6.

[0066] It should be noted that this embodiment provides a threaded connection method, that is, an inner groove thread is provided on the inner wall of the connecting groove 708, and an outer wall thread matching the inner groove thread is correspondingly provided on the top outer wall of the lifting cylinder 6. By mutually screwing the outer wall thread and the inner groove thread, the lifting cylinder 6 is vertically connected to the tray base 702.

[0067] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be thought of by anyone familiar with the technology within the technical scope disclosed by the utility model are included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the scope of the claims.

Claims

1. A height-adjustable support device for preventing pouring collapse of a floor deck, characterized in that: It comprises a rotating handle (1), with a screw rod (2) and a rotating shaft (3) respectively arranged vertically at both ends of the rotating handle (1), the screw rod (2) being sleeved by an upper supporting tube (4), and the rotating shaft (3) being sleeved by a lower supporting tube (5); A rotating shaft support bearing (8) is provided between the cylinder wall of the lower support cylinder (5) and the outer wall of the rotating shaft (3); The screw rod (2) comprises a threaded portion (201) arranged in the middle section, and rotation support portions (202) arranged at both ends, and a screw rod support bearing (9) is arranged between the rotation support portion (202) adjacent to the rotation handle (1) and the inner wall of the upper support cylinder (4); A lifting cylinder (6) is also sleeved in the upper support cylinder (4), and the lifting cylinder (6) can sleeve the screw rod (2). A screw rod nut seat (10) matching with the screw rod (2) is provided on the threaded portion (201) of the screw rod (2), and the outer wall of the screw rod nut seat (10) is fixedly connected to the inner wall of the lifting cylinder (6); The top of the lifting cylinder (6) is connected to an elastic lifting device (7).

2. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 1, characterized in that: A C-shaped handle (12) is provided on the outer walls of the upper support tube (4) and the lower support tube (5), and the C-shaped handle (12) spans the rotating handle (1).

3. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 1, characterized in that: A vertical guide groove is also provided on the inner wall of the upper support cylinder (4), and correspondingly, a guide convex strip matching the guide groove is provided on the outer wall of the lifting cylinder (6).

4. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 3, characterized in that: There are three guide grooves, which are arranged at equal intervals on the inner wall of the upper support tube (4); correspondingly, there are three guide ridges, which match the three guide grooves respectively.

5. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 1, characterized in that: A limit stopper (13) is provided on the rotation support portion (202) located at the top of the screw rod (2).

6. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 5, characterized in that: There are at least two screw rod nut seats (10).

7. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 1, characterized in that: The elastic lifting device (7) comprises a tray (701) and a tray base (702); the top of the tray base (702) is provided with a tray groove (703) into which the tray (701) can be inserted; a plurality of screw through holes (704) that can penetrate the tray base (702) are provided along the bottom wall of the tray groove (703); a screw (705) is inserted from below the screw through hole (704), penetrates the screw through hole (704), and is screwed to the bottom surface of the tray (701); A return spring (706) is sleeved on the screw rod (705) corresponding to the bottom surface of the tray (701) and the bottom wall of the tray groove (703).

8. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 7, characterized in that: A limiting nut (707) is also provided at the bottom end of the screw rod (705), and the outer diameter of the limiting nut (707) is greater than the inner diameter of the screw rod through hole (704).

9. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 7, characterized in that: A connecting seat (709) with a connecting groove (708) is provided at the axial center position of the bottom surface of the tray base (702), and the connecting groove (708) can be sleeved on the top of the lifting cylinder (6) to realize vertical connection between the tray base (702) and the lifting cylinder (6).

10. The height-adjustable support device for preventing pouring collapse of a floor deck according to claim 9, characterized in that: An inner thread is provided on the inner wall of the connecting groove (708), and an outer wall thread matching the inner thread is provided on the top outer wall of the lifting cylinder (6). The lifting cylinder (6) is vertically connected to the tray base (702) by screwing the outer wall thread and the inner thread together.

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