Telescopic steel pipe supporting device

Abstract

The utility model relates to a telescopic steel pipe supporting device which comprises two supporting top supports and two steel pipes, a threaded supporting rod is fixed to the back face of each supporting top support, one end of each steel pipe is connected to the threaded supporting rod in a sleeved mode, and a knob buckle is installed between each threaded supporting rod and the corresponding steel pipe. The knob buckle is connected to the threaded supporting rod in a screwed mode, and the length of the steel pipe supporting device is adjusted through clockwise and anticlockwise rotation of the knob buckle. The other ends of the two steel pipes are connected with adjusting mechanisms through connecting assemblies, and length adjustment of the steel pipe supporting device after formwork prepressing is achieved through driving displacement of the adjusting mechanisms. According to the utility model, the mounting positions of the supports at the two ends can be quickly and accurately positioned, the length of the steel pipe can be quickly adjusted to the designed length, the opposite supports are ensured to be gapless in mounting, the jacking force meets the pressure of a side mold, and the support slippage and instability caused by the gap which is not mounted in place and insufficient jacking force are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe supporting devices, in particular to a telescopic steel pipe supporting device. Background Art

[0002] When constructing underground tunnel sidewall formwork using tie-screw-free steel formwork, steel pipe diagonal braces are often used to reinforce the side formwork to ensure stability and meet construction requirements. These braces are typically arranged crosswise, with one end positioned at the top of the side formwork and the other at the bottom of the other side formwork. The length of the steel pipe braces is adjusted using adjusting screws.

[0003] Steel pipes are assembled using standard ends, with some sections custom-lengthed. During traditional on-site construction, insufficient tightening force prevents precise adjustment of the pipe support length, often requiring hammering and forceful tightening. These on-site construction errors can lead to installation gaps that cannot be eliminated or excessive lengths that cannot be installed, resulting in insufficient support force, wasted materials, and increased installation time and costs. This directly impacts the straightness of the steel formwork, and consequently, the construction quality and appearance of the entire sidewall. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a retractable steel pipe support device, which can quickly and accurately locate the installation position of the supports at both ends, and quickly adjust the length of the steel pipe to the designed length, ensuring that the supports are installed without gaps and the top force meets the side mold pressure, avoiding support slippage and instability caused by gaps in inadequate installation and insufficient top force.

[0005] The purpose of the present utility model is achieved through the following technical scheme. The retractable steel pipe support device includes a support top bracket and a steel pipe. The support top bracket and the steel pipe are both provided with two. A threaded support rod is fixed on the back of the support top bracket. One end of the steel pipe is sleeved on the threaded support rod, and a knob buckle is installed between the threaded support rod and the steel pipe. The knob buckle is screwed on the threaded support rod, and the length of the steel pipe support device is adjusted by rotating the knob buckle clockwise or counterclockwise. The other ends of the two steel pipes are connected to an adjustment mechanism through a connecting assembly, and the length of the steel pipe support device after the template is pre-pressed is adjusted by the driving displacement of the adjustment mechanism.

[0006] The beneficial effects of the utility model are as follows: Compared with the prior art, a threaded support rod and a knob buckle are added to the supporting jack, and the steel pipe is sleeved on the threaded support rod, which facilitates the large-range adjustment of the length of the telescopic steel pipe support device. An adjusting mechanism is installed between the two steel pipes, which facilitates the fine adjustment of the length of the telescopic steel pipe support device after the formwork is pre-pressed; the supporting jack, the steel pipe and the adjusting mechanism can all be disassembled, and can be reused, saving costs, implementing green construction and improving construction efficiency.

[0007] Preferably, the supporting jack is a steel "C"-shaped member, and the opening of the supporting jack faces the device to be supported, and the threaded support rod is located at the center position on the back of the supporting jack; through the setting of the above structure, the supporting stability of the supporting jack for the formwork is better, and the clamping is more convenient during the supporting process.

[0008] Preferably, the knob buckle includes a knob and a nut. The nut is fixed at the center position of the knob. The knob buckle is screwed to the threaded support rod through the nut. One side of the nut is flush with one side of the knob, and a bayonet is formed between the other side of the nut and the circumferential inner wall of the knob. The bayonet abuts against one end of the steel pipe; through the setting of the above structure, the formation of the knob buckle is simpler, and it is more convenient in actual application, and the length adjustment of the steel pipe support device is realized by rotating the knob buckle clockwise and counterclockwise.

[0009] Preferably, the connecting component includes four flange plates. Two of the flange plates are respectively fixed on the end faces of the other ends of the two steel pipes, and the other two flange plates are respectively fixed on the bottom end and the top end of the adjusting mechanism. The adjacent flange plates are fixedly connected by bolts; through the setting of the above structure, the disassembly and assembly between the two steel pipes and the adjusting mechanism are more convenient, which brings convenience to the construction, and the flange plates are used, and the stability after connection is better.

[0010] Preferably, the adjusting mechanism is a hydraulic jack, which is convenient for adjustment and control.

[0011] Preferably, the centers of the supporting jack, the threaded support rod, the steel pipe and the adjusting mechanism are all on the same straight line; through the arrangement of the above components, the stress points are more concentrated and the stress stability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the telescopic steel pipe support device of the utility model.

[0013] Figure 2 is a three-dimensional structural schematic diagram between the supporting jack and the steel pipe of the utility model.

[0014] Figure 3 This is a schematic three-dimensional structure diagram between the steel pipe and the adjusting mechanism of the present utility model.

[0015] The reference numerals in the drawings are respectively: 200, support jack; 201, steel pipe; 202, threaded support rod; 203, knob buckle; 204, adjusting mechanism; 205, knob; 206, nut; 207, bayonet; 208, flange. Specific embodiments

[0016] The following will introduce the present utility model in detail with reference to the drawings: As shown in the Figures 1 to 3 drawings, the present utility model includes a support jack 200 and a steel pipe 201. There are two support jacks 200 and two steel pipes 201. A threaded support rod 202 is fixed on the back of the support jack 200. One end of the steel pipe 201 is sleeved on the threaded support rod 202, and a knob buckle 203 is installed between the threaded support rod 202 and the steel pipe 201. The knob buckle 203 is screwed on the threaded support rod 202, and the length adjustment of the steel pipe support device is realized by the clockwise and counterclockwise rotation of the knob buckle 203; the other ends of the two steel pipes 201 are both connected to an adjusting mechanism 204 through a connecting component, and the length adjustment of the steel pipe support device after the formwork preloading is realized by the driving displacement of the adjusting mechanism 204; the two steel pipes 201, the support jack 200 and the threaded support rod 202 of the adjusting mechanism 204 are all symmetrically structured and distributed.

[0017] The support jack 200 is a steel "C" - shaped member, and the opening of the support jack 200 faces the supported device, and the threaded support rod 202 is located at the center position on the back of the support jack 200.

[0018] The knob buckle 203 includes a knob 205 and a nut 206. The nut 206 is fixed at the center position of the knob 205. The knob buckle 203 is screwed to the threaded support rod 202 through the nut 206, and one side of the nut 206 is flush with one side of the knob 205. A bayonet 207 is formed between the other side of the nut 206 and the circumferential inner wall of the knob 205, and the bayonet 207 abuts against one end of the steel pipe 201.

[0019] The connecting component includes four flanges 208. Two of the flanges 208 are respectively fixed on the end faces of the other ends of the two steel pipes 201, and the other two flanges 208 are respectively fixed on the bottom end and the top end of the adjusting mechanism 204. Adjacent flanges 208 are fixedly connected by bolts.

[0020] The adjusting mechanism 204 is a hydraulic jack.

[0021] The centers of the support jack 200, the threaded support rod 202, the steel pipe 201 and the adjusting mechanism 204 are all on the same straight line.

[0022] The using process of the utility model is as follows: First, connect the telescopic steel pipe support device into a whole. Then, rotate the knob buckle 203 clockwise and counterclockwise to achieve a large-range length adjustment of the steel pipe support device. Connect the two support brackets 200 on the telescopic steel pipe support device to the formwork respectively and fix them. Finally, adjust the driving displacement of the adjusting mechanism 204 to achieve fine adjustment of the length of the steel pipe support device after the formwork is pre-pressed.

[0023] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in this application should be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A telescopic steel pipe support device, comprising a support top bracket (200) and a steel pipe (201), characterized in that: There are two of the support jacks (200) and the steel pipes (201). A threaded support rod (202) is fixed to the back of the support jack (200). One end of the steel pipe (201) is sleeved on the threaded support rod (202), and a knob buckle (203) is installed between the threaded support rod (202) and the steel pipe (201). The knob buckle (203) is screwed onto the threaded support rod (202), and the length of the steel pipe support device is adjusted by rotating the knob buckle (203) clockwise or counterclockwise. The other ends of the two steel pipes (201) are each connected to an adjustment mechanism (204) through a connection assembly, and the length of the steel pipe support device after the formwork preloading is adjusted by the driving displacement of the adjustment mechanism (204).

2. The telescopic steel pipe support device according to claim 1, wherein: The support jack (200) is a steel "C" - shaped member, and the opening of the support jack (200) faces the device to be supported. The threaded support rod (202) is located at the center of the back of the support jack (200).

3. The telescopic steel pipe support device according to claim 1, characterized in that: The knob buckle (203) includes a knob (205) and a nut (206). The nut (206) is fixed at the center position of the knob (205). The knob buckle (203) is screwed to the threaded support rod (202) through the nut (206). One side of the nut (206) is flush with one side of the knob (205), and a bayonet (207) is formed between the other side of the nut (206) and the circumferential inner wall of the knob (205). The bayonet (207) abuts against one end of the steel pipe (201).

4. The telescopic steel pipe support device according to claim 1, characterized in that: The connection assembly includes four flange plates (208). Two of the flange plates (208) are respectively fixed on the end faces of the other ends of the two steel pipes (201), and the other two flange plates (208) are respectively fixed on the bottom end and the top end of the adjustment mechanism (204). Adjacent flange plates (208) are fixedly connected by bolts.

5. The telescopic steel pipe support device according to claim 1, wherein: The adjustment mechanism (204) is a hydraulic jack.

6. The telescopic steel pipe support device according to claim 1, characterized in that: The centers of the support jack (200), the threaded support rod (202), the steel pipe (201), and the adjustment mechanism (204) are all on the same straight line.

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