Reinforced steel pipe connecting device

Abstract

The utility model discloses a reinforced steel pipe connecting device, which relates to the technical field of steel structures and comprises a supporting inner pipe, a connecting pipe is fixedly connected to the middle of the outer wall of the supporting inner pipe, a second steel pipe is movably sleeved on the right portion of the outer wall of the supporting inner pipe, and a first steel pipe is movably sleeved on the left portion of the outer wall of the supporting inner pipe. The outer walls of the first steel pipe and the second steel pipe are both in threaded connection with connecting and fixing assemblies. According to the reinforced steel pipe connecting device, the arc-shaped clamping blocks can be clamped into the clamping grooves formed in the outer wall of the first steel pipe through extrusion of the movable sleeve, then the annular fixing plate and the limiting sleeve are fixed through screws, and therefore the position of the movable sleeve is limited; the first steel pipe can be fixed in the inner wall of the fixed inner pipe under the action of the two arc-shaped clamping blocks, so that the connection stability is ensured, and meanwhile, under the action of the spring, the arc-shaped clamping blocks can move upwards when losing limitation, so that quick mounting, fixing and dismounting are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, and particularly relates to a reinforced steel pipe connecting device. Background Technique

[0002] Steel pipes with hollow cross-sections, whose lengths are much greater than their diameters or perimeters. They are classified into circular, square, rectangular, and special-shaped steel pipes according to the cross-sectional shape; generally, two independent circular steel pipes are directly aligned and coaxially welded and fixed, and the welded end faces are flat structures. After welding, the connection part is small, and because the middle part of the circular steel pipe is a hollow structure, the strength after connection is low and it is easy to break and deform. Therefore, a reinforced steel pipe connecting device is needed.

[0003] Chinese patent document CN207762078U discloses a reinforced steel pipe connection structure, belonging to the field of steel structures. It solves the problem of unstable connection of two existing circular steel pipes. This reinforced steel pipe connection structure includes two coaxially arranged circular steel pipes, and also includes a circular tubular connection pipe and several connecting plates distributed around the axis of the connection pipe and fixed to the outer wall of the connection pipe with their inner sides. The end faces of the two circular steel pipes are mutually abutted and welded and fixed, and the connection pipe is coaxially located inside the two circular steel pipes and between the two circular steel pipes. The inner side of the connecting plate is bent to form an arc-shaped plate-like inner connection part that fits and fixes to the outer wall of the connection pipe, the outer side of the connecting plate is bent to form an arc-shaped plate-like outer connection part that fits and fixes to the inner wall of the circular steel pipe, the width direction of the inner side of the connecting plate is tangent to the outer wall of the connection pipe, and the inner side of the inner connection part fits and fixes to the outer wall of the connection pipe. This steel pipe connection structure uses the connecting plate to support the inner wall of the circular steel pipe to effectively improve the overall strength after the connection of the circular steel pipe.

[0004] The following problems exist in the prior art:

[0005] When the reinforced steel pipe connecting device is in use, it cannot ensure the stability after connection, is not convenient for quick installation, fixation and disassembly, and after the reinforced steel pipe connecting device is installed, it cannot ensure the sealing performance, so it is easy to reduce the service life due to the corrosion of the external environment. Summary of the Utility Model

[0006] The utility model provides a reinforced steel pipe connecting device to solve the problems raised in the above background technique.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A reinforced steel pipe connection device includes a supporting inner pipe. In the middle of the outer wall of the supporting inner pipe, a connecting pipe is fixedly connected. On the right part of the outer wall of the supporting inner pipe, a second steel pipe is movably sleeved. On the left part of the outer wall of the supporting inner pipe, a first steel pipe is movably sleeved. Connecting and fixing components are threadedly connected to the outer walls of both the first steel pipe and the second steel pipe. The outer walls of the opposite parts of the two connecting and fixing components are respectively fixedly connected to the inner walls of the left and right parts of the connecting pipe.

[0009] Preferably, the two connecting and fixing components include two fixed inner pipes. The outer walls of the opposite parts of the two fixed inner pipes are respectively fixedly connected to the inner walls of the left and right parts of the connecting pipe. The inner walls of the opposite parts of the two fixed inner pipes are respectively threadedly connected to the outer walls of the opposite parts of the first steel pipe and the second steel pipe. Limit sleeves are fixedly connected to the outer walls of the opposite parts of the two fixed inner pipes.

[0010] Preferably, a movable sleeve is threadedly connected to the outer wall of the fixed inner pipe. An annular fixing plate is fixedly connected to the outer wall of the movable sleeve and is located between the limit sleeve and the connecting pipe. The outer wall of the part of the movable sleeve away from the connecting pipe is movably sleeved with the inner wall of the limit sleeve.

[0011] Preferably, sealing rings I are fixedly connected to both the left and right sides of the connecting pipe. The opposite surfaces of the two sealing rings I are respectively lapped with the opposite surfaces of the first steel pipe and the second steel pipe.

[0012] Preferably, arc-shaped clamping blocks are clamped in the inner cavities of the upper and lower parts of the two fixed inner pipes. The outer walls of the four arc-shaped clamping blocks are respectively clamped with the clamping grooves formed in the outer walls of the first steel pipe and the second steel pipe. Three reset components are fixedly connected to both the left and right sides of the arc-shaped clamping block. The outer walls of the reset components are fixedly connected to the inner cavities of the fixed inner pipes.

[0013] Preferably, a sealing ring II is fixedly connected to the inner wall of the part of the limit sleeve close to the annular fixing plate. An annular clamping plate is fixedly connected to the side of the annular fixing plate close to the limit sleeve and is located on the side of the sealing ring II close to the connecting pipe.

[0014] Preferably, the reset component includes a moving column. The outer wall of the moving column is movably sleeved with the inner cavity of the fixed inner pipe. A rubber pad is fixedly connected to the lower surface of the moving column. The lower surface of the rubber pad is fixedly connected to the inner cavity of the fixed inner pipe.

[0015] Preferably, a spring is fixedly connected to the top of the inner wall of the moving column. The outer wall of the spring is movably sleeved with the inner walls of both the moving column and the rubber pad. The lower surface of the spring is fixedly connected to the bottom of the inner wall of the rubber pad.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0017] 1. The utility model provides a reinforced steel pipe connection device. By rotating the movable sleeve, the movable sleeve can rotate and move into the inner wall of the limit sleeve. At this time, under the extrusion of the movable sleeve, the arc-shaped clamping block can be clamped into the clamping groove opened on the outer wall of the first steel pipe. Then, the annular fixing plate and the limit sleeve are fixed by screws, so as to limit the position of the movable sleeve. By fixing the movable sleeve, the first steel pipe can be fixed in the inner wall of the fixed inner pipe under the action of two arc-shaped clamping blocks, thus ensuring the stability of the connection. At the same time, under the action of the spring, the arc-shaped clamping block can move upward when the restriction of the movable sleeve is removed, which is convenient for quick installation, fixation and disassembly.

[0018] 2. The utility model provides a reinforced steel pipe connection device. When the annular fixing plate and the movable sleeve rotate and move outwards, the outer wall of the annular clamping plate can be clamped with the inner wall of the second sealing ring. At this time, the side of the annular clamping plate far from the connecting pipe can overlap with the side of the second sealing ring close to the connecting pipe, so as to seal between the annular fixing plate and the limit sleeve, ensuring that the inside of the device will not be corroded by the external environment, and thus improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the structural schematic diagram of the utility model;

[0020] Figure 2 is the split structural schematic diagram of the utility model;

[0021] Figure 3 is the sectional structural schematic diagram of the utility model;

[0022] Figure 4 is the sectional structural schematic diagram of the connecting pipe of the utility model;

[0023] Figure 5 is the sectional structural schematic diagram of the connection and fixing assembly of the utility model;

[0024] Figure 6 is the utility model Figure 5 the enlarged structural schematic diagram at A in;

[0025] Figure 7 is the connection structural schematic diagram of the fixed inner pipe and the arc-shaped clamping block of the utility model;

[0026] Figure 8 is the sectional structural schematic diagram of the reset assembly of the utility model.

[0027] In the figure: 1, the first steel pipe; 2, the connecting pipe; 3, the second steel pipe; 4, the supporting inner pipe; 5, the connecting and fixing assembly; 21, the first sealing ring; 51, the fixing inner pipe; 52, the moving sleeve; 53, the limiting sleeve; 531, the second sealing ring; 54, the annular fixing plate; 541, the annular clamping plate; 55, the arc-shaped clamping block; 56, the reset assembly; 561, the moving column; 562, the rubber pad; 563, the spring. Specific embodiments

[0028] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] As Figure 1 , Figure 2 shown, a reinforced steel pipe connecting device includes a supporting inner pipe 4. The middle part of the outer wall of the supporting inner pipe 4 is fixedly connected with a connecting pipe 2. The right part of the outer wall of the supporting inner pipe 4 is movably sleeved with a second steel pipe 3. The left part of the outer wall of the supporting inner pipe 4 is movably sleeved with a first steel pipe 1. The outer walls of the first steel pipe 1 and the second steel pipe 3 are both threadedly connected with a connecting and fixing assembly 5. The outer walls of the relative parts of the two connecting and fixing assemblies 5 are respectively fixedly connected with the inner walls of the left and right parts of the connecting pipe 2.

[0030] First, rotate the first steel pipe 1 and the second steel pipe 3 to the outer walls of the left and right parts of the supporting inner pipe 4, so that the outer walls of the first steel pipe 1 and the second steel pipe 3 are respectively threadedly connected with the inner walls of the two connecting and fixing assemblies 5. At this time, under the action of the internal supporting inner pipe 4, when the first steel pipe 1 and the second steel pipe 3 are connected and fixed by the two connecting and fixing assemblies 5, there can be a certain internal support, thereby enhancing the strength of the connection. At the same time, under the action of the two connecting and fixing assemblies 5, the first steel pipe 1 and the second steel pipe 3 can be fixedly installed on the left and right parts of the connecting pipe 2, thus completing the connection.

[0031] As Figure 3 , Figure 4 shown, sealing rings 21 are fixedly connected to both the left and right sides of the connecting pipe 2. The opposite surfaces of the two sealing rings 21 are respectively lapped with the opposite surfaces of the first steel pipe 1 and the second steel pipe 3.

[0032] Through the action of the two sealing rings 21, the first steel pipe 1, the connecting pipe 2 and the second steel pipe 3 can be sealed, thereby preventing leakage.

[0033] As Figure 5 , Figure 6As shown, the two connection and fixing components 5 include two fixed inner tubes 51. The outer walls of the opposite parts of the two fixed inner tubes 51 are respectively fixedly connected to the inner walls of the left and right parts of the connecting pipe 2. The inner walls of the opposite parts of the two fixed inner tubes 51 are respectively threadedly connected to the outer walls of the opposite parts of the first steel pipe 1 and the second steel pipe 3. The outer walls of the opposite parts of the two fixed inner tubes 51 are both fixedly connected with limit sleeves 53; Arc-shaped blocks 55 are clamped in the inner cavities of the upper and lower parts of the two fixed inner tubes 51. The outer walls of the four arc-shaped blocks 55 are respectively clamped in the card slots opened on the outer walls of the first steel pipe 1 and the second steel pipe 3. Three reset components 56 are fixedly connected to the left and right sides of the arc-shaped block 55. The outer walls of the reset components 56 are fixedly connected to the inner cavity of the fixed inner tube 51;

[0034] By rotating the movable sleeve 52, the movable sleeve 52 can be rotated and moved into the inner wall of the limit sleeve 53. At this time, under the extrusion of the movable sleeve 52, the arc-shaped block 55 can be clamped into the card slot opened on the outer wall of the first steel pipe 1. Then, the annular fixing plate 54 and the limit sleeve 53 are fixed by screws, so as to limit the position of the movable sleeve 52. By fixing the movable sleeve 52, the first steel pipe 1 can be fixed in the inner wall of the fixed inner tube 51 under the action of the two arc-shaped blocks 55, thus ensuring the stability of the connection.

[0035] As Figure 7 shown, a movable sleeve 52 is threadedly connected to the outer wall of the fixed inner tube 51. An annular fixing plate 54 is fixedly connected to the outer wall of the movable sleeve 52 and the annular fixing plate 54 is located between the limit sleeve 53 and the connecting pipe 2. The outer wall of the part of the movable sleeve 52 far from the connecting pipe 2 is movably sleeved with the inner wall of the limit sleeve 53; A second sealing ring 531 is fixedly connected to the inner wall of the part of the limit sleeve 53 close to the annular fixing plate 54. An annular clamping plate 541 is fixedly connected to the side of the annular fixing plate 54 close to the limit sleeve 53 and the annular clamping plate 541 is located on the side of the second sealing ring 531 close to the connecting pipe 2;

[0036] When the annular fixing plate 54 and the movable sleeve 52 are rotated and moved outwards, the outer wall of the annular clamping plate 541 can be clamped with the inner wall of the second sealing ring 531. At this time, the side of the annular clamping plate 541 far from the connecting pipe 2 can overlap with the side of the second sealing ring 531 close to the connecting pipe 2, so as to seal between the annular fixing plate 54 and the limit sleeve 53, thus ensuring that the inside of the device will not be corroded by the external environment and improving the service life.

[0037] As Figure 8 shown, the reset component 56 includes a moving column 561. The outer wall of the moving column 561 is movably sleeved with the inner cavity of the fixed inner tube 51. A rubber pad 562 is fixedly connected to the lower surface of the moving column 561. The lower surface of the rubber pad 562 is fixedly connected to the inner cavity of the fixed inner tube 51;

[0038] Through the action of the rubber pad 562, the internal spring 563 can always be in a sealed state, thereby preventing it from being corroded by the external environment, and thus improving its service life.

[0039] The top of the inner wall of the moving column 561 is fixedly connected with a spring 563. The outer wall of the spring 563 is movably sleeved with the inner walls of the moving column 561 and the rubber pad 562 respectively. The lower surface of the spring 563 is fixedly connected with the bottom of the inner wall of the rubber pad 562.

[0040] Through the action of the spring 563, the moving column 561 and the arc-shaped clamping block 55 can move upward when the restriction of the moving sleeve 52 is lost. At this time, the steel pipe 1 or the steel pipe 3 can be rotated and disassembled.

[0041] The working principle of the present utility model: First, rotate the steel pipe 1 and the steel pipe 3 into the inner walls of the two fixed inner pipes 51. At this time, the inner walls of the steel pipe 1 and the steel pipe 3 are respectively movably sleeved with the outer walls of the left and right parts of the support inner pipe 4. Then, by rotating the moving sleeve 52, the moving sleeve 52 can be rotated and moved into the inner wall of the limit sleeve 53. At this time, under the extrusion of the moving sleeve 52, the arc-shaped clamping block 55 can be clamped into the card slot opened on the outer wall of the steel pipe 1. Then, fix the annular fixing plate 54 and the limit sleeve 53 with screws, so as to limit the position of the moving sleeve 52. By fixing the moving sleeve 52, the steel pipe 1 can be fixed in the inner wall of the fixed inner pipe 51 under the action of the two arc-shaped clamping blocks 55, thereby ensuring the stability of the connection. Among them, when the annular fixing plate 54 and the moving sleeve 52 are rotated and moved outward, the outer wall of the annular clamping plate 541 can be clamped with the inner wall of the sealing ring two 531. At this time, the side of the annular clamping plate 541 away from the connecting pipe 2 can overlap with the side of the sealing ring two 531 close to the connecting pipe 2, so as to seal between the annular fixing plate 54 and the limit sleeve 53, thereby ensuring that the inside of the device will not be corroded by the external environment, and thus improving the service life. And when disassembly is required, after removing the screws, rotate the moving sleeve 52 in the reverse direction, so that the arc-shaped clamping block 55 loses the extrusion force of the moving sleeve 52. Through the action of the spring 563, the moving column 561 and the arc-shaped clamping block 55 can move upward when the restriction of the moving sleeve 52 is lost. At this time, the steel pipe 1 or the steel pipe 3 can be rotated and disassembled, which is convenient for quick installation, fixation and disassembly.

[0042] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An enhanced steel pipe connection device, comprising a supporting inner pipe (4), characterized in that: A connecting pipe (2) is fixedly connected to the middle of the outer wall of the supporting inner pipe (4). A second steel pipe (3) is movably sleeved on the right part of the outer wall of the supporting inner pipe (4), and a first steel pipe (1) is movably sleeved on the left part of the outer wall of the supporting inner pipe (4). Connecting and fixing components (5) are threadedly connected to the outer walls of the first steel pipe (1) and the second steel pipe (3). The outer walls of the opposite parts of the two connecting and fixing components (5) are respectively fixedly connected to the inner walls of the left and right parts of the connecting pipe (2); The two connecting and fixing components (5) include two fixed inner pipes (51). The outer walls of the opposite parts of the two fixed inner pipes (51) are respectively fixedly connected to the inner walls of the left and right parts of the connecting pipe (2). The inner walls of the opposite parts of the two fixed inner pipes (51) are respectively threadedly connected to the outer walls of the opposite parts of the first steel pipe (1) and the second steel pipe (3). Limit sleeves (53) are fixedly connected to the outer walls of the opposite parts of the two fixed inner pipes (51); A movable sleeve (52) is threadedly connected to the outer wall of the fixed inner pipe (51). An annular fixing plate (54) is fixedly connected to the outer wall of the movable sleeve (52), and the annular fixing plate (54) is located between the limit sleeve (53) and the connecting pipe (2). The outer wall of a part of the movable sleeve (52) far from the connecting pipe (2) is movably sleeved on the inner wall of the limit sleeve (53).

2. The enhanced steel pipe connection device according to claim 1, characterized in that: Sealing rings one (21) are fixedly connected to both the left and right sides of the connecting pipe (2). The opposite surfaces of the two sealing rings one (21) are respectively lapped on the opposite surfaces of the first steel pipe (1) and the second steel pipe (3).

3. The enhanced steel pipe connection device according to claim 1, characterized in that: Arc-shaped blocks (55) are clamped in the inner cavities of the upper and lower parts of the two fixed inner pipes (51). The outer walls of the four arc-shaped blocks (55) are respectively clamped in the card slots formed in the outer walls of the first steel pipe (1) and the second steel pipe (3). Three reset components (56) are fixedly connected to both the left and right sides of the arc-shaped block (55). The outer walls of the reset components (56) are fixedly connected to the inner cavities of the fixed inner pipes (51).

4. The enhanced steel pipe connection device according to claim 1, characterized in that: A sealing ring two (531) is fixedly connected to the inner wall of a part of the limit sleeve (53) close to the annular fixing plate (54). An annular clamping plate (541) is fixedly connected to the side of the annular fixing plate (54) close to the limit sleeve (53), and the annular clamping plate (541) is located on the side of the sealing ring two (531) close to the connecting pipe (2).

5. The enhanced steel pipe connection device according to claim 3, characterized in that: The reset component (56) includes a moving column (561). The outer wall of the moving column (561) is movably sleeved in the inner cavity of the fixed inner pipe (51). A rubber pad (562) is fixedly connected to the lower surface of the moving column (561). The lower surface of the rubber pad (562) is fixedly connected to the inner cavity of the fixed inner pipe (51).

6. The enhanced steel pipe connection device according to claim 5, characterized in that: A spring (563) is fixedly connected to the top of the inner wall of the moving column (561). The outer wall of the spring (563) is movably sleeved on the inner walls of the moving column (561) and the rubber pad (562). The lower surface of the spring (563) is fixedly connected to the bottom of the inner wall of the rubber pad (562).

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