Tower sleeve type chimney steel inner cylinder and butt joint combination structure thereof

Abstract

The invention discloses a towering sleeve type chimney steel inner barrel and a butt joint combination structure thereof, and belongs to the field of butt joint combination structures.The towering sleeve type chimney steel inner barrel comprises butt joint assemblies connected to the splicing end of a cylinder barrel assembly, the number of the butt joint assemblies is two, and each butt joint assembly comprises an inner supporting ring and a middle movable ring; the middle movable ring is connected to the outer portion of the inner supporting ring through cooperation of the tooth grooves and the teeth, an inclined face is arranged at the bottom of the middle movable ring, and the outer side of the middle movable ring is sleeved with an enclosing assembly. Through matched arrangement of the inner supporting ring and the middle movable ring, the inner supporting ring and the middle movable ring can form a buffer zone when the steel inner cylinder resists the strong wind weather, the inclination angle of the steel inner cylinder is larger by extruding the buffer base plate, and therefore the situation that the subsequent maintenance cost is increased due to deformation of the connecting position of the steel inner cylinder in the extremely strong wind weather is avoided; and meanwhile, collapse caused by breakage of the welding position of the steel inner cylinder and the connecting piece can be avoided, so that the safety of the steel inner cylinder in extreme weather is improved.

Description

Technical Field

[0001] The invention relates to the technical field of butt joint combined structures, in particular to a high-rise sleeve-type chimney steel inner tube and a butt joint combined structure thereof. Background Art

[0002] The towering sleeve-type chimney is formed by stacking multiple sections of steel inner cylinders through a butt joint structure. It is widely used because of its high construction efficiency and low labor cost. The butt joint structure of the existing sleeve-type chimney steel inner cylinder mostly adopts a tooth-groove matching structure. Although the tooth-groove matching butt joint structure can effectively improve the efficiency of steel inner cylinder assembly, when the chimney is damaged by strong winds, the butt joint part is prone to deformation or the connection between the cylinder and the butt joint structure is cracked due to its overly stable structure, thereby greatly reducing the ability of the chimney to resist natural damage such as strong winds. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the joint of the steel inner cylinder is prone to deformation or the connection between the cylinder and the butt structure is prone to cracking due to its overly stable structure, and to propose a tall sleeve-type chimney steel inner cylinder and its butt joint combination structure.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A tall sleeve-type chimney steel inner tube and its docking combination structure, including a docking assembly connected to the splicing end of a cylinder assembly, wherein the docking assembly has two groups, and the docking assembly includes an internal support ring and a middle movable ring, wherein the middle movable ring is connected to the outside of the internal support ring through tooth grooves and teeth, wherein an inclined surface is provided at the bottom of the middle movable ring, an enclosure assembly is sleeved on the outer side of the middle movable ring, and the upper and lower ends of the enclosure assembly are connected to the cylinder assembly, and a working chamber is formed between the inclined surface, the internal support ring, the inner side wall of the enclosure assembly and the cylinder assembly, wherein a buffer pad is inserted into the inner wall of the working chamber, and a splicing surface is provided at the top of the buffer pad, wherein the splicing surface is tightly fitted with the inclined surface, and a support assembly is provided between the buffer pad and the enclosure assembly.

[0006] Preferably, the cylinder assembly includes a top sleeve, a middle split cylinder and a bottom pressure-bearing cylinder, and annular grooves are provided at the bottom end of the top sleeve, the upper and lower ends of the middle split cylinder and the top of the bottom pressure-bearing cylinder, the upper and lower ends of the enclosure assembly are inserted into the inner wall of the annular groove, the top ends of the two middle movable rings are respectively fixed to the top sleeve and the bottom of the middle split cylinder, and the bottoms of the two internal support rings are respectively fixed to the top ends of the middle split cylinder and the bottom pressure-bearing cylinder.

[0007] Preferably, a plurality of lower supporting feet are fixed to the bottom end of the bottom pressure-bearing cylinder in a circular array with the central axis as the axis, and the number of the lower supporting feet is plural.

[0008] Preferably, the enclosure component comprises an enclosure side plate plugged into the inner wall of the annular groove, there are multiple enclosure side plates, and both ends of the multiple enclosure side plates are connected to form a ring through a plug-in component.

[0009] Preferably, the plug-in assembly includes a female docking groove opened at one end of the enclosed side panel, and a tapping head opened at the other end of the enclosed side panel, and one end of the tapping head is plugged into the inner wall of the female docking groove of the enclosed side panel at the adjacent end.

[0010] Preferably, the support assembly includes support holes opened on the inner side wall of the enclosed side plate, and the number of the support holes is two.

[0011] Preferably, an arc plate is inserted into the inner wall of the support hole, and the side surface of the arc plate is pressed against one end of the buffer pad.

[0012] Preferably, the top sleeve, the middle split cylinder and the bottom pressure-bearing cylinder are stacked to form a conical barrel shape, and the wall thickness of the bottom pressure-bearing cylinder is the sum of the wall thicknesses of the top sleeve and the middle split cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention adopts the matching arrangement of the internal support ring and the middle movable ring. The internal support ring and the middle movable ring can form a buffer zone when the steel inner tube resists strong winds. The steel inner tube is tilted at a larger angle by squeezing the buffer pad, thereby avoiding deformation of the connection of the steel inner tube in extreme strong winds and increasing subsequent maintenance costs. At the same time, it can avoid the fracture and collapse of the welding part between the steel inner tube and the connecting piece, thereby improving the safety of the steel inner tube in dealing with extreme weather.

[0015] 2. The present invention provides arc plates to provide support for the buffer pads, which is not only conducive to the tilting of the steel inner tube in windy weather, but also can prevent the enclosing side plates from being deformed too much and unable to recover when the steel inner tube tilts, resulting in uneven tilting of the steel inner tube as a whole, thereby increasing safety in subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the steel inner tube of a high-rise sleeve-type chimney and its butt-jointed combined structure proposed by the present invention;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the steel inner tube of the high-rise sleeve chimney and its butt-jointed combined structure proposed by the present invention;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the steel inner tube of the high-rise sleeve-type chimney and the top sleeve of its butt-jointed combined structure proposed by the present invention;

[0019] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 6 It is a schematic diagram of the explosion structure of the steel inner tube of the high-rise sleeve chimney and the middle movable ring of its butt joint combined structure proposed by the present invention;

[0022] Figure 7 The schematic diagram of the cross-sectional structure of the steel inner tube of the tall sleeve-type chimney proposed in the present invention and the buffer plate of its butt-jointed combined structure.

[0023] In the figure: 1. internal support ring; 2. middle movable ring; 3. inclined surface; 4. working chamber; 5. buffer pad; 6. splicing surface; 7. top sleeve; 8. middle splicing cylinder; 9. bottom pressure cylinder; 10. annular groove; 11. lower support foot; 12. enclosing side plate; 13. docking mother groove; 14. tapping head; 15. support hole; 16. arc plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example, see Figures 1 to 7 , a tall sleeve-type chimney steel inner tube and its docking combination structure, including a docking assembly connected to the splicing end of the cylinder assembly. Further, the cylinder assembly includes a top sleeve 7, a middle splicing tube 8 and a bottom pressure-bearing tube 9. The top sleeve 7, the middle splicing tube 8 and the bottom pressure-bearing tube 9 are stacked to form a cone barrel shape. The wall thickness of the bottom pressure-bearing tube 9 is the sum of the wall thicknesses of the top sleeve 7 and the middle splicing tube 8, and an annular groove 10 is provided at the bottom end of the top sleeve 7, the upper and lower ends of the middle splicing tube 8 and the top of the bottom pressure-bearing tube 9. The upper and lower ends of the enclosure assembly are plugged into the inner wall of the annular groove 10, the top ends of the two middle movable rings 2 are respectively fixed to the bottom of the top sleeve 7 and the middle splicing tube 8, the bottoms of the two internal support rings 1 are respectively fixed to the top ends of the middle splicing tube 8 and the bottom pressure-bearing tube 9, and the bottom end of the bottom pressure-bearing tube 9 is fixed with a plurality of lower supporting legs 11 in a circular array with its axis as the axis, and the number of the lower supporting legs 11 is multiple.

[0028] A further advantage of adopting the above method is that the annular groove 10 can facilitate the installation of the enclosed side plate 12 between any two top sleeves 7, the middle spliced ​​tube 8 and the bottom pressure-bearing tube 9, thereby facilitating the construction and installation of the steel inner tube. The lower support leg 11 can facilitate the installation and fixation of the bottom pressure-bearing tube 9 on the base seat. The wall thickness of the bottom pressure-bearing tube 9 is the sum of the wall thickness of the top sleeve 7 and the middle spliced ​​tube 8. The bottom pressure-bearing tube 9 is subjected to greater force, and increasing the wall thickness is beneficial to ensuring the stability of the steel inner tube during use.

[0029] There are two groups of docking components, and the docking components include an internal support ring 1 and a middle movable ring 2. The middle movable ring 2 is connected to the outside of the internal support ring 1 through tooth grooves and teeth. A slope 3 is provided at the bottom of the middle movable ring 2, and an enclosure component is sleeved on the outer side of the middle movable ring 2. Furthermore, the enclosure component includes an enclosure side plate 12 plugged into the inner wall of the annular groove 10. There are multiple enclosure side plates 12, and the two ends of the multiple enclosure side plates 12 are connected to form a ring through a plug-in component.

[0030] Further advantages of adopting the above method are: there is a certain gap between the teeth and the tooth grooves of the internal support ring 1 and the middle movable ring 2, so that the middle movable ring 2 can squeeze the buffer plate 5 to move, thereby ensuring that the inclination angle of the steel inner tube is increased when resisting strong winds. The outer side of the bottom of the enclosing side plate 12 is an inclined surface, which is to provide greater deformation resistance to prevent the buffer plate 5 from squeezing the enclosing side plate 12 to deform, and to ensure that the enclosing side plate 12 can ensure a certain deformation capacity when the chimney is tilted, thereby providing conditions for providing a larger inclination angle for the steel inner tube.

[0031] Furthermore, the plug-in assembly includes a docking female groove 13 opened at one end of the enclosed side panel 12, and a tapping head 14 opened at the other end of the enclosed side panel 12, and one end of the tapping head 14 is plugged into the inner wall of the docking female groove 13 of the enclosed side panel 12 at the adjacent end.

[0032] The further advantage of adopting the above method is that the arrangement of the female butt groove 13 and the tapping head 14 can facilitate the construction work, so that the workers can install the enclosed side panels 12, reduce the volume of the enclosed side panels 12, reduce the utilization rate of extra-large mechanical equipment, and save installation costs and time.

[0033] The upper and lower ends of the enclosure component are connected to the cylinder component, and a working chamber 4 is formed between the inclined surface 3, the internal support ring 1, the inner wall of the enclosure component and the cylinder component. A buffer plate 5 is inserted into the inner wall of the working chamber 4, and a splicing surface 6 is provided on the top of the buffer plate 5. The splicing surface 6 is tightly fitted with the inclined surface 3. The buffer plate 5 and the enclosure component are provided with a support component. Further, the support component includes a support hole 15 opened on the inner wall of the enclosure side plate 12. There are two support holes 15. An arc plate 16 is inserted into the inner wall of the support hole 15, and the side of the arc plate 16 is pressed against one end of the buffer plate 5.

[0034] A further advantage of adopting the above method is that the joint surface 6 is a smooth inclined surface adapted to the inclined surface 3. In order to be able to squeeze the buffer plate 5 after the middle movable ring 2 is compressed, the buffer plate 5 resists tilting through the arc plate 16. At the same time, when the top of the enclosing side plate 12 is deformed too much to be restored, the arc plate 16 can also be used as a support to ensure that the steel inner tube can be placed vertically, thereby reducing the risk of collapse of the steel inner tube after a disaster.

[0035] When the present invention is used, the bottom pressure-bearing cylinder 9, the middle joint cylinder 8 and the top sleeve 7 are stacked in sequence. The installation steps of the above three sleeves are the same, and they are all stacked up through a docking combination structure;

[0036] The arc plate 16 is installed on the inner wall of the enclosed side plate 12 through the support hole 15, and the enclosed side plate 12 is inserted into the annular groove 10 at the top of the bottom pressure-bearing cylinder 9. When the enclosed side plate 12 is installed, it can be connected with the tapping head 14 through the docking female groove 13 to form a ring, and then the buffer pad 5 is placed between the internal support ring 1 and the arc plate 16 according to the designed interval;

[0037] Finally, align the annular groove 10 at the bottom of the middle splicing tube 8 with the top of the enclosing side plate 12 and place it. After the middle movable ring 2 falls with the middle splicing tube 8, the middle movable ring 2 is sleeved with the internal support ring 1. At this time, the inclined surface at the bottom of the middle movable ring 2 will squeeze the buffer plate 5 through the splicing surface 6. At this time, the buffer plate 5 moves to squeeze the arc plate 16 to maintain a vertical state.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-rise sleeve chimney steel inner cylinder and a butt joint assembly structure thereof, comprising a butt joint assembly connected to the splicing end of a cylinder assembly, characterized in that: There are two groups of docking components, and the docking components include an internal support ring (1) and a middle movable ring (2). The middle movable ring (2) is connected to the outside of the internal support ring (1) through tooth grooves and teeth. The bottom of the middle movable ring (2) is provided with an inclined surface (3). The outer side of the middle movable ring (2) is sleeved with an enclosure component. The upper and lower ends of the enclosure component are connected to the cylinder assembly. A working chamber (4) is formed between the inclined surface (3), the internal support ring (1), the inner side wall of the enclosure component and the cylinder assembly. A buffer plate (5) is inserted into the inner wall of the working chamber (4). The top of the buffer plate (5) is provided with a splicing surface (6). The splicing surface (6) is tightly fitted with the inclined surface (3). The buffer plate (5) and the enclosure component are provided with a support component.

2. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 1 is characterized in that: The cylinder assembly comprises a top sleeve (7), a middle split cylinder (8) and a bottom pressure-bearing cylinder (9), and an annular groove (10) is provided at the bottom end of the top sleeve (7), the upper and lower ends of the middle split cylinder (8) and the top end of the bottom pressure-bearing cylinder (9), the upper and lower ends of the enclosure assembly are plugged into the inner wall of the annular groove (10), the top ends of the two middle movable rings (2) are respectively fixed to the top sleeve (7) and the bottom of the middle split cylinder (8), and the bottom ends of the two internal support rings (1) are respectively fixed to the top of the middle split cylinder (8) and the top of the bottom pressure-bearing cylinder (9).

3. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 2 is characterized in that: A plurality of lower supporting feet (11) are fixed to the bottom end of the bottom pressure-bearing cylinder (9) in a ring array with the axis thereof as the axis center, and the number of the lower supporting feet (11) is plural.

4. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 2 is characterized in that: The enclosure component comprises an enclosure side plate (12) plugged into the inner wall of the annular groove (10), there are a plurality of the enclosure side plates (12), and the two ends of the plurality of enclosure side plates (12) are connected in an annular shape via a plug-in component.

5. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 4 is characterized in that: The plug-in assembly comprises a female butt joint groove (13) provided at one end of the enclosed side plate (12), and a tapping head (14) provided at the other end of the enclosed side plate (12), one end of the tapping head (14) being plugged into the inner wall of the female butt joint groove (13) of the enclosed side plate (12) at the adjacent end.

6. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 1 is characterized in that: The support assembly comprises a support hole (15) opened on the inner side wall of the enclosed side plate (12), and there are two support holes (15).

7. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 6 is characterized in that: An arc plate (16) is inserted into the inner wall of the support hole (15), and the side surface of the arc plate (16) is pressed against one end of the buffer pad (5).

8. The high-rise sleeve chimney steel inner tube and its butt joint assembly structure according to claim 2 is characterized in that: The top sleeve (7), the middle split cylinder (8) and the bottom pressure-bearing cylinder (9) are stacked to form a conical barrel shape, and the wall thickness of the bottom pressure-bearing cylinder (9) is the sum of the wall thicknesses of the top sleeve (7) and the middle split cylinder (8).

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