Novel steel pipe support changing connecting device

Abstract

The utility model relates to the technical field of steel pipe support changing, in particular to a novel steel pipe support changing connecting device which comprises a stiffening plate, a connecting plate and a supporting steel pipe, the connecting plate is welded to the end of the stiffening plate, and the supporting steel pipe is arranged on the outer side of the connecting plate. The supporting steel pipe has the advantages that the first cast steel connecting piece and the second cast steel connecting piece can be connected together in an inserted mode at the moment, the pin shaft can penetrate through the first cast steel connecting piece and the second cast steel connecting piece through the inserting holes, the nuts are fixed to the two sides of the pin shaft, the supporting steel pipe is convenient to construct, and the supporting steel pipe can be suitable for foundation pit engineering under various conditions; the supporting steel pipes are high in stability, high in shear capacity and excellent in force load transmission effect, and when the supporting steel pipes need to be dismantled, the supporting steel pipes can be dismantled only by dismantling the pin shafts, so that the supporting steel pipes can be turned over in the next step and can be reused, the material utilization rate is increased, and the effects of green construction and resource cyclic utilization are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe support replacement, in particular to a novel steel pipe support replacement connection device. Background Art

[0002] Steel pipe support replacement is a commonly used technology in construction projects, mainly used for foundation pit support. With the gradual excavation and construction of the foundation pit, the original support structure may not be able to meet the requirements of foundation pit stability. At this time, steel pipe support replacement operation is required to replace the original support structure with a more stable and reliable support structure to ensure the safety and stability of the foundation pit.

[0003] In the prior art, the replacement support technology is to set a reaction pier and concrete replacement support between the basement floor and the crown beam. The use of concrete replacement support is suitable for the foundation stage of construction conditions.

[0004] However, when the basement exterior wall has not yet been constructed, the construction period is long and the cost of measures is high. The concrete supports need to be cut after replacement and cannot be reused. In addition, the steel pipe replacement support connection usually adopts welding connection method, which makes the steel pipe replacement support difficult to remove. Utility Model Content

[0005] The utility model aims to provide a novel steel pipe brace replacement connection device to solve the problem in the above background technology that the steel pipe brace replacement needs to be cut and cannot be reused.

[0006] To achieve the above objectives, the utility model provides the following technical solutions: a new type of steel pipe support replacement connection device, including a stiffening plate, a connecting plate and a supporting steel pipe, the end of the stiffening plate is welded with a connecting plate, and the outer side of the connecting plate is provided with a supporting steel pipe.

[0007] Preferably, a first cast steel connector is welded to the outer side of the connecting plate, a second cast steel connector is welded to the end of the supporting steel pipe, and a socket is provided through the inside of the first cast steel connector and the second cast steel connector.

[0008] Preferably, a pin is inserted into the inside of the socket, and both ends of the pin are threaded, a nut is threadedly connected to the outside of the pin, a washer is bonded to the inner wall of the second cast steel connector, and a plastic sleeve is sleeved on the outside of the nut.

[0009] Preferably, the pin shaft forms a plug-in structure with the first cast steel connector and the second cast steel connector through a socket, and a sliding structure is formed between the first cast steel connector and the second cast steel connector.

[0010] Preferably, a connecting block is welded to the front of the supporting steel pipe, and a connecting shaft is welded to the inner side of the connecting block.

[0011] Preferably, a rotating block is movably connected to the outer side of the connecting shaft, a rubber plate is connected to the end of the rotating block, and a moving block is connected to the side of the rubber plate away from the rotating block.

[0012] Preferably, a fixed block is welded to the front of the supporting steel pipe close to the moving block, the internal thread of the fixed block is connected with a knob, and a stress sensor is arranged between the rubber plate and the supporting steel pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The novel steel pipe support replacement connection device proposed by the utility model can plug the first cast steel connection piece and the second cast steel connection piece together, so that the pin shaft can pass through the first cast steel connection piece and the second cast steel connection piece through the insertion hole, and the nuts are fixed on both sides of the pin shaft. The support steel pipe is easy to construct and can be applicable to foundation pit projects under various conditions. The support steel pipe has high stability, strong shear resistance, and excellent force transmission load effect. When the support steel pipe needs to be dismantled, the support steel pipe can be dismantled by removing the pin shaft, so that the support steel pipe can be circulated in the next step and can be reused, thereby improving material utilization and achieving the effect of green construction and resource recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a right view structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the main cutaway structure of the rotating block of the utility model;

[0018] Figure 4 It is a right side cutaway structural schematic diagram of the second cast steel connecting piece of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the rubber plate of the utility model.

[0020] In the figure: 1. stiffening plate; 2. connecting plate; 3. supporting steel pipe; 4. first cast steel connecting piece; 5. second cast steel connecting piece; 6. socket; 7. pin; 8. nut; 9. washer; 10. plastic sleeve; 11. connecting block; 12. connecting shaft; 13. rotating block; 14. rubber sheet; 15. moving block; 16. fixed block; 17. knob; 18. stress sensor. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0022] Embodiment 1

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a new type of steel pipe support replacement connection device, including a stiffening plate 1, a connecting plate 2 and a supporting steel pipe 3, the end of the stiffening plate 1 is welded with the connecting plate 2, and the outer side of the connecting plate 2 is provided with a supporting steel pipe 3.

[0024] A first cast steel connector 4 is welded to the outer side of the connecting plate 2, and a second cast steel connector 5 is welded to the end of the supporting steel pipe 3. A socket 6 is provided through the inside of the first cast steel connector 4 and the second cast steel connector 5. A pin 7 is inserted into the inside of the socket 6, and both ends of the pin 7 are threaded. A nut 8 is threadedly connected to the outer side of the pin 7. A washer 9 is bonded to the inner wall of the second cast steel connector 5, and a plastic sleeve 10 is sleeved on the outer side of the nut 8. The pin 7 forms a plug-in structure with the first cast steel connector 4 and the second cast steel connector 5 through the socket 6, and a sliding structure is formed between the first cast steel connector 4 and the second cast steel connector 5.

[0025] Embodiment 2

[0026] On the basis of the first embodiment, in order to realize that the supporting steel pipe 3 can be reused, the first cast steel connecting piece 4 is first welded to the outside of the connecting plate 2, and the second cast steel connecting piece 5 is welded to the end of the supporting steel pipe 3. At this time, the first cast steel connecting piece 4 and the second cast steel connecting piece 5 can be plugged together, so that the sockets 6 on the first cast steel connecting piece 4 and the second cast steel connecting piece 5 can be aligned with each other, so that the pin shaft 7 can pass through the socket 6 to penetrate the first cast steel connecting piece 4 and the second cast steel connecting piece 5, and the nuts 8 are fixed on both sides of the pin shaft 7. At this time, the first cast steel The connecting piece 4 and the second cast steel connecting piece 5 can be rotated through the pin shaft 7, and the plastic sleeve 10 is put on the outside of the nut 8 to prevent the nut 8 from loosening and falling. The support steel pipe 3 is easy to construct and can be applied to foundation pit projects under various conditions. The support steel pipe 3 has high stability, strong shear resistance, and excellent force transmission load effect. When the support steel pipe 3 needs to be dismantled, the support steel pipe 3 can be dismantled by simply removing the pin shaft 7, so that the support steel pipe 3 can be circulated in the next step and can be reused, thereby improving material utilization and achieving the effect of green construction and resource recycling.

[0027] A connecting block 11 is welded to the front of the supporting steel pipe 3, a connecting shaft 12 is welded to the inner side of the connecting block 11, a rotating block 13 is movably connected to the outer side of the connecting shaft 12, a rubber plate 14 is connected to the end of the rotating block 13, a moving block 15 is connected to the side of the rubber plate 14 away from the rotating block 13, a fixed block 16 is welded to the front of the supporting steel pipe 3 close to the moving block 15, a knob 17 is connected to the internal thread of the fixed block 16, a stress sensor 18 is arranged between the rubber plate 14 and the supporting steel pipe 3, and the shape of the rubber plate 14 is arc-shaped.

[0028] Embodiment 3

[0029] On the basis of the second embodiment, in order to realize the monitoring of foundation pit stress and settlement, the stress sensor 18 can be moved to the front side of the supporting steel pipe 3, and the moving block 15 can be pulled. When the moving block 15 moves, the rubber plate 14 and the rotating block 13 can be driven to move. When the rotating block 13 moves, it can be rotated through the connecting shaft 12. When the rubber plate 14 rotates and moves to the outer surface of the stress sensor 18, the moving block 15 can move to the inside of the fixed block 16. At this time, the knob 17 can be rotated. When the knob 17 is rotated, the moving block 15 can be threadedly fixed, so that the rubber plate 14 can squeeze and fix the stress sensor 18, so that the stress sensor 18 can be installed on the supporting steel pipe 3. The stress and settlement of the foundation pit can be monitored through the stress sensor 18, which is convenient for personnel to understand the foundation pit stress in a timely manner.

[0030] In actual use, the first cast steel connector 4 and the second cast steel connector 5 are plugged together so that the sockets 6 on the first cast steel connector 4 and the second cast steel connector 5 can be aligned with each other, so that the pin shaft 7 can pass through the first cast steel connector 4 and the second cast steel connector 5 through the socket 6, and the nut 8 is fixed on both sides of the pin shaft 7, and the plastic sleeve 10 is sleeved on the outside of the nut 8. The support steel pipe 3 is easy to construct and can be applied to foundation pit projects under various conditions. The support steel pipe 3 has high stability, strong shear resistance, and excellent force transmission load effect. When the support steel pipe 3 needs to be dismantled, only the pin shaft 7 needs to be removed to dismantle the support steel pipe 3, so that the support steel pipe 3 can be circulated in the next step and can be reused, thereby improving material utilization and achieving the effect of green construction and resource recycling. The stress sensor 18 can monitor the stress and settlement of the foundation pit, so that personnel can understand the stress of the foundation pit in a timely manner.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel steel pipe replacement and connection device, comprising a stiffening plate (1), a connection plate (2) and a supporting steel pipe (3), characterized in that: A connecting plate (2) is welded to the end of the stiffening plate (1), a supporting steel pipe (3) is arranged on the outer side of the connecting plate (2), a first cast steel connecting piece (4) is welded to the outer side of the connecting plate (2), a second cast steel connecting piece (5) is welded to the end of the supporting steel pipe (3), a plug hole (6) is provided through the inside of the first cast steel connecting piece (4) and the second cast steel connecting piece (5), a pin shaft (7) is inserted into the inside of the plug hole (6), and both ends of the pin shaft (7) are threaded, a nut (8) is threadedly connected to the outer side of the pin shaft (7), a washer (9) is bonded to the inner wall of the second cast steel connecting piece (5), and a plastic sleeve (10) is sleeved on the outer side of the nut (8).

2. A new type of steel pipe replacement connection device according to claim 1, characterized in that: The pin shaft (7) forms a plug-in structure with the first cast steel connecting piece (4) and the second cast steel connecting piece (5) through the insertion hole (6), and a sliding structure is formed between the first cast steel connecting piece (4) and the second cast steel connecting piece (5).

3. A new type of steel pipe replacement connection device according to claim 1, characterized in that: A connection block (11) is welded to the front of the support steel pipe (3), and a connection shaft (12) is welded to the inner side of the connection block (11).

4. A new type of steel pipe replacement connection device according to claim 3, characterized in that: A rotating block (13) is movably connected to the outer side of the connecting shaft (12), a rubber plate (14) is connected to the end of the rotating block (13), and a moving block (15) is connected to the side of the rubber plate (14) away from the rotating block (13).

5. A new type of steel pipe replacement connection device according to claim 4, characterized in that: A fixed block (16) is welded to the front of the support steel pipe (3) near the moving block (15); a knob (17) is connected to the internal thread of the fixed block (16); and a stress sensor (18) is provided between the rubber plate (14) and the support steel pipe (3).

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