Height-adjustable steel pipe supporting and fixing device

Abstract

The utility model relates to the technical field of formwork supporting, in particular to a height-adjustable steel pipe supporting and fixing device which comprises a fixing plate, a vertical rod, an adjusting piece and a locking piece. The fixing plate is fixed to a peripheral bottom formwork, the vertical rod is fixed to the center of the fixing plate, and the adjusting piece is arranged on the vertical rod in a sleeving mode and can move in the length direction of the vertical rod. The steel pipes of the peripheral top formwork are vertically and downwards arranged on the vertical rods in a sleeving mode and abut against the adjusting pieces, and the adjusting pieces are limited on the vertical rods through locking pieces matched with the vertical rods and used for supporting and fixing the steel pipes. The utility model overcomes the defect of waste of reinforcing steel bars caused by manufacturing supports by using short reinforcing steel bars traditionally, is suitable for steel pipes with different lengths, does not need to cut the steel pipes, and is simple in construction and efficient in installation.

Description

Technical Field

[0001] The utility model relates to the technical field of template support, in particular to a steel pipe support fixing device with adjustable height. Background Art

[0002] During the construction of the formwork support system, the steel pipes must not penetrate the floor slab and affect water seepage, yet still be able to support the formwork system through the mezzanine. Currently, there are two common methods for adjusting the support of the existing slab steel pipes. One method involves welding steel bars into a "Shi" shape to secure the formwork, positioning and supporting the upper steel pipes. To ensure secure and accurate positioning of the steel pipes, 18mm diameter threaded steel bars are typically welded to the vertical steel pipes for support and positioning. This wastes a large amount of steel and involves welding with hot metal, which is quite dangerous. Furthermore, because the quality of the welded "Shi" shape is significantly affected by the skill level of the workers, the quality of the welded "Shi" shape is inconsistent, and adjustments are not possible after welding. Later, after the main structure is completed and the frame is dismantled, the "Shi" shape must be cut using a cutting machine or acetylene. The welded horizontal steel bars on the upper part are difficult to cut evenly, which affects the appearance of the floor slab and subsequent decoration.

[0003] The second method is to directly place the steel pipe on the bottom formwork and pour it into the concrete. Later, when the main structure construction is completed and the support frame is dismantled, the steel pipe embedded in the concrete needs to be cut, which wastes steel pipe materials and requires a secondary sealing of the steel pipe hole after cutting, which requires additional labor and materials and poses a risk of leakage. Utility Model Content

[0004] In view of this, the utility model provides a steel pipe support and fixing device with adjustable height, which solves the problem of steel bar waste caused by the traditional use of short steel bars to make supports. It is suitable for different steel pipe lengths, does not require steel pipe cutting, and has simple construction and efficient installation.

[0005] The utility model is realized through the following technical solutions: a steel pipe supporting and fixing device with adjustable height, comprising a fixing plate, a vertical rod, an adjusting piece and a locking piece; the fixing plate is fixed on the outer bottom template, the vertical rod is fixed at the center of the fixing plate, and the adjusting piece is sleeved on the vertical rod and can move along the length direction of the vertical rod; the steel pipe of the outer top template is sleeved vertically downward on the vertical rod and abuts against the adjusting piece, and the adjusting piece is limited on the vertical rod by a locking piece cooperating with the vertical rod, so as to support and fix the steel pipe.

[0006] Furthermore, the adjusting member is a butterfly card, and the bottom of the steel pipe is limited in the butterfly card slot; the vertical rod is a screw rod, and the locking member is a double nut.

[0007] Furthermore, a fixing nut is provided on the screw rod located in the butterfly card slot, and the bottom of the steel pipe is sleeved outside the fixing nut.

[0008] Furthermore, the distance between the lower end of the locking piece and the finished concrete pouring surface of the outer bottom formwork is not less than 1 cm.

[0009] Furthermore, the vertical rod is inserted into the steel pipe for a length of not less than 20 cm.

[0010] Furthermore, the fixing plate is a steel plate, which is provided with through holes and is fixed to the outer bottom template by fasteners.

[0011] Compared with the existing technology, the beneficial effects of the utility model are:

[0012] 1. The utility model is suitable for different steel pipe lengths, accurately positions the steel pipe and firmly fixes it, avoiding the disadvantages of traditional construction where the position and height cannot be adjusted and the steel pipe needs to be cut and re-welded, and is convenient for construction.

[0013] 2. The nut and butterfly clip of the utility model can be reused, saving costs.

[0014] 3. The utility model can be manufactured by tooling, has stable quality, is quick and easy to install and disassemble, has wide adaptability, saves labor and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the general assembly of the utility model.

[0016] Figure 2 Top view of the fixed plate.

[0017] Among them, 1-steel pipe, 2-butterfly clip, 3-double nut, 4-fixing plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The utility model provides a steel pipe support fixing device with adjustable height, such as Figure 1 As shown, the device includes a fixed plate 4, a vertical rod, an adjusting piece and a locking piece; the fixed plate 4 is fixed on the outer bottom template, the vertical rod is fixed at the center of the fixed plate 4, and the adjusting piece is sleeved on the vertical rod and can move along the length direction of the vertical rod; the steel pipe 1 of the outer top template is vertically sleeved on the vertical rod and abuts against the adjusting piece, and the adjusting piece is limited on the vertical rod by a locking piece that cooperates with the vertical rod, which is used to support and fix the steel pipe.

[0020] In this embodiment, the adjustment member is a butterfly clip 2, and the bottom of the steel pipe 1 is restrained in the butterfly clip slot; the vertical rod is a screw, and the locking member is a double nut 3. The position of the butterfly clip 2 is adjusted according to the length of the steel pipe 1 and the height of the screw from the bottom of the top template plate. The double nut 3 is used to restrict the movement of the butterfly clip 2, thereby controlling the length of the steel pipe 1 inserted into the screw (the screw is inserted into the steel pipe 1). The screw is inserted into the steel pipe 1 for a length of no less than 20 cm. Fine-tuning is continued by turning the double nut 3 until the appropriate height is reached. Then, the double nut 3 is tightened to restrain the butterfly clip 2 on the screw. The butterfly clip 2 presses against the steel pipe, achieving the purpose of supporting and fixing the steel pipe 1. This device is suitable for steel pipe support frames of different heights.

[0021] In this embodiment, the screw adopts an M18 screw, that is, a screw with a nominal diameter of 18 mm. Figure 2 As shown, the fixing plate 4 is made of 3 thick 10*10 steel plates (square steel plates with a thickness of 3mm and a side length of 10cm). There are through holes in the four corners of the steel plates, which are fixed to the outer bottom template by steel nails. During construction, the position of the steel plate 4 is determined by on-site positioning and fixed to the outer bottom template surface. After positioning, if the position needs to be adjusted, just pull out the steel nails, adjust the steel plate and then re-nail it. The positioning is accurate and convenient, avoiding the disadvantage of traditional construction that if the position needs to be adjusted, it can only be re-welded. The screw is fixed to the steel plate by welding, and the height of the welding seam is not less than the thickness of the steel plate. The main load-bearing components in this utility model are made of 3 thick 10*10 steel plates and M18 screws, which are elastic-plastic materials. They are easy to obtain, simple to construct, and meet the force requirements. They ensure the firmness of the support and fixation of the steel pipe 1, thereby ensuring the reliability of the upper support frame where the steel pipe 1 is located.

[0022] During the specific implementation, ensure that the double nut 3 and the butterfly card 2 are intact, the screw is perpendicular to the steel plate, and the welding seam between the screw and the steel plate is full. When in use, the lower end of the double nut 3 is always kept on the upper part of the concrete pouring surface of the upper plate of the outer bottom template, and the distance therefrom cannot be less than 1 cm, so as to facilitate the later removal of the double nut 3 and the butterfly card 2 for reuse.

[0023] To prevent Butterfly Card 2 from slipping, once the card is positioned, a retaining nut can be added to the screw in the card slot. The bottom of Steel Pipe 1 can be fitted over the retaining nut for even greater stability. After the entire system is installed, a two-way sweeping rod can be added 20 cm above Butterfly Card 2 for added reinforcement and overall stability.

[0024] The utility model is quick to install and easy to adjust, and is suitable for different lengths of steel pipes 1. It accurately positions and firmly fixes the steel pipes 1 of the supporting frame, avoiding the disadvantages of traditional construction that the position and height cannot be adjusted and the steel pipes need to be cut and re-welded. It can be mass-produced in factories and the accessories can be used in a turnover manner, further reducing the production cost. It is also convenient to process and obtain materials, simple to operate, and reliable in quality.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A height-adjustable steel pipe support and fixing device, characterized in that: It includes a fixed plate, a vertical rod, an adjusting piece and a locking piece; the fixed plate is fixed to the outer bottom template, the vertical rod is fixed to the center of the fixed plate, and the adjusting piece is sleeved on the vertical rod and can move along the length direction of the vertical rod; The steel pipe of the outer top template is vertically sleeved on the vertical rod and abuts against the adjusting piece. The adjusting piece is limited on the vertical rod by a locking piece that cooperates with the vertical rod to support and fix the steel pipe.

2. The height-adjustable steel pipe support and fixing device according to claim 1, characterized in that: The adjusting piece is a butterfly card, and the bottom of the steel pipe is limited in the card slot of the butterfly card; the vertical rod is a screw rod, and the locking piece is a double nut.

3. The height-adjustable steel pipe support and fixing device according to claim 2, characterized in that: A fixing nut is arranged on the screw rod in the butterfly card slot, and the bottom of the steel pipe is sleeved outside the fixing nut.

4. The height-adjustable steel pipe support and fixing device according to claim 1, characterized in that: The distance between the lower end of the locking piece and the finished surface of concrete pouring on the outer bottom formwork is not less than 1 cm.

5. The height-adjustable steel pipe support and fixing device according to any one of claims 1 to 4, characterized in that: The vertical rod is inserted into the steel pipe for a length of not less than 20 cm.

6. The height-adjustable steel pipe support and fixing device according to claim 5, characterized in that: The fixing plate is a steel plate which is provided with through holes and is fixed on the outer bottom template by fasteners.

Images