Assembled steel pipe sleeve

Abstract

The utility model belongs to the technical field of steel pipe sleeves, and discloses an assembled steel pipe sleeve which comprises a steel sleeve, a pipe body is arranged on the inner side of the steel sleeve, one end of the steel sleeve is fixedly connected with a fixing ring, and the other end of the steel sleeve is in threaded connection with a fastening ring. A first-stage propelling ring and a second-stage propelling ring are arranged on the sides, away from each other, of the fixing ring and the fastening ring correspondingly, a first-stage wedging ring and a second-stage wedging ring are fixedly connected to the opposite sides of the first-stage propelling ring and the second-stage propelling ring correspondingly, and a first-stage wedging groove and a second-stage wedging groove are formed in the two ends of the inner wall of the steel sleeve correspondingly; the steel pipe sleeve can be assembled, the working efficiency is improved, the first-stage wedging ring and the second-stage wedging ring stretch into the first-stage wedging groove and the second-stage wedging groove respectively during installation, the first-stage wedging ring and the second-stage wedging ring extrude the inner wall of the steel sleeve and the outer wall of the pipe body in the advancing process, and therefore the inner wall of the steel sleeve and the outer wall of the pipe body are very tight, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe casings, in particular to an assembled steel pipe casing. Background Art

[0002] Steel pipe casing is a device used for pipes to pass through walls. It is usually composed of steel pipes and wing rings. Its main function is to protect the pipes and prevent water seepage into the walls. It can be divided into rigid waterproof casing and flexible waterproof casing, which are suitable for different occasions. Waterproof casing is also used in some special environments, such as basements and sewage treatment sites.

[0003] A Chinese patent with application number 202123135488.3 discloses a water-stopping wall-penetrating steel casing structure, which drives the assembly ring to move when connected to the wall by fastening bolts, and moves the fastening clamping block under the action of the tilting block, and utilizes the fastening clamping block to fasten the tube body in the casing to ensure the effective connection between the tube body and the casing, and the fastening clamping block will cause the air injection piston to move when moving, so as to inflate the water-stop airbag ring and enhance the sealing between the tube body and the casing. However, the water-stopping wall-penetrating steel casing structure has the following shortcomings: the tilting block structure causes the force to be relatively offset, which is easy to cause breakage, and the structure of the air injection piston is arranged in the inner wall of the steel casing, and the structure is relatively precise, and it is difficult to ensure the sealing in actual use.

[0004] Therefore, a kind of assembled steel pipe casing is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an assembled steel pipe casing, which has the advantages of easy assembly and good sealing performance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled steel pipe casing, comprising a steel casing, a tube body is provided on the inner side of the steel casing, one end of the steel casing is fixedly connected with a fixing ring, the other end of the steel casing is threadedly connected with a fastening ring, a first-level pushing ring and a second-level pushing ring are respectively provided on the side away from the fixing ring and the fastening ring, a first-level fitting ring and a second-level fitting ring are respectively fixedly connected on the opposite sides of the first-level pushing ring and the second-level pushing ring, a first-level fitting groove and a second-level fitting groove are respectively provided at the positions of the two ends of the inner wall of the steel casing, the first-level pushing ring and the second-level pushing ring are matched with the first-level fitting groove and the second-level fitting groove respectively, the first-level pushing ring and the second-level pushing ring are respectively provided with evenly distributed first-level fixing bolts and second-level fixing bolts, and the first-level fixing bolts and the second-level fixing bolts respectively penetrate the fixing ring and the fastening ring.

[0007] Preferably, the fixing ring and the primary propulsion ring are both provided with corresponding primary through holes, and the screw rod of the primary fixing bolt passes through the primary through holes.

[0008] Preferably, the fastening ring and the secondary propulsion ring are both provided with corresponding secondary through holes, and the screw rod of the secondary fixing bolt passes through the secondary through holes.

[0009] Preferably, the inner wall of the fastening ring is provided with an internal thread, and the outer surface of the steel casing is provided with an external thread at a position corresponding to the fastening ring.

[0010] Preferably, sealing gaskets are provided on opposite sides of the fixing ring and the fastening ring, and the primary through holes and the secondary through holes both penetrate the sealing gaskets.

[0011] Preferably, the inner walls of the primary fitting ring and the secondary fitting ring are both provided with a primary sealing ring, and the inner walls of the primary fitting groove and the secondary fitting groove are both provided with a secondary sealing ring.

[0012] Preferably, the inner diameters of the primary propulsion ring, the secondary propulsion ring, the primary fitting ring and the secondary fitting ring are consistent, and the inner diameters of the primary propulsion ring, the secondary propulsion ring, the primary fitting ring and the secondary fitting ring are slightly larger than the outer diameter of the tube body.

[0013] Preferably, the steel casing is composed of an outer tube, an inner tube and a welding ring. The inner tube is arranged inside the outer tube. Both ends of the outer tube and the inner tube are fixedly connected with welding rings. Uniformly distributed reinforcing brackets are fixedly connected between the outer tube and the inner tube.

[0014] Preferably, a cavity is formed between the reinforcing brackets, a water-absorbing filler is arranged in the cavity, and a through hole is arranged on the inner tube, and the through hole is connected to the cavity.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model uses structures such as steel casing, fixing ring, fastening ring, etc. to enable steel pipe casing to be assembled without welding during construction, thereby improving work efficiency. When the steel pipe casing parts are damaged, they can be partially replaced, saving materials;

[0017] 2. The utility model is provided with a primary fitting ring, a secondary fitting ring, a primary fitting groove, a secondary fitting groove and other structures. During installation, the primary fitting ring and the secondary fitting ring are respectively inserted into the primary fitting groove and the secondary fitting groove. During the movement, the primary fitting ring and the secondary fitting ring squeeze the inner wall of the steel casing and the outer wall of the pipe body, so that they are very tight to each other, thereby improving the sealing effect;

[0018] 3. The steel casing of the utility model is composed of a double-layer pipe, and a reinforcing bracket is arranged therein to enhance the stress-bearing strength of the steel casing, thereby preventing the steel casing from being deformed and squeezing the water pipe due to wall compression, thereby enhancing the protection capability for the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 3 It is a cross-sectional structural diagram of the fixing ring of the steel casing machine of the utility model;

[0022] Figure 4 This is a schematic cross-sectional structural diagram of a first-stage propulsion plate of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fastening ring of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the steel casing of the utility model.

[0025] In the figure: 1, steel casing; 101, outer tube; 102, inner tube; 103, welding ring; 104, reinforcing bracket;

[0026] 2. Tube body; 3. Fixing ring; 4. Fastening ring; 5. Primary push ring; 6. Secondary push ring; 7. Primary fitting ring; 8. Secondary fitting ring; 9. Primary fitting groove; 10. Secondary fitting groove; 11. Primary fixing bolt; 12. Secondary fixing bolt; 13. Primary through hole; 14. Secondary through hole; 15. Internal thread; 16. External thread; 17. Sealing gasket; 18. Primary sealing ring; 19. Secondary sealing ring; 20. Cavity; 21. Water-absorbing filler; 22. Through hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0028] like Figures 1 to 6As shown, the utility model provides an assembled steel pipe casing, including a steel casing 1, a pipe body 2 is arranged on the inner side of the steel casing 1, a fixing ring 3 is fixedly connected to one end of the steel casing 1, and a fastening ring 4 is threadedly connected to the other end of the steel casing 1. The steel pipe casing can be assembled without welding during construction, which improves the work efficiency, and when the steel pipe casing parts are damaged, they can be partially replaced, saving materials. A primary propulsion ring 5 and a secondary propulsion ring 6 are respectively arranged on the side away from the fixing ring 3 and the fastening ring 4, and a primary fitting ring 7 and a secondary fitting ring 8 are respectively fixedly connected to the opposite sides of the primary propulsion ring 5 and the secondary propulsion ring 6. The positions of the two ends of the inner wall of the steel casing 1 are A primary fitting groove 9 and a secondary fitting groove 10 are respectively provided, and the primary propulsion ring 5 and the secondary propulsion ring 6 are matched with the primary fitting groove 9 and the secondary fitting groove 10 respectively. During installation, the primary fitting ring 7 and the secondary fitting ring 8 are respectively extended into the primary fitting groove 9 and the secondary fitting groove 10. The primary fitting ring 7 and the secondary fitting ring 8 squeeze the inner wall of the steel casing 1 and the outer wall of the pipe body 2 during the movement, so that they are very tight to each other to improve the sealing effect. The primary propulsion ring 5 and the secondary propulsion ring 6 are respectively provided with uniformly distributed primary fixing bolts 11 and secondary fixing bolts 12, and the primary fixing bolts 11 and the secondary fixing bolts 12 respectively penetrate the fixing ring 3 and the fastening ring 4.

[0029] Specifically, the fixing ring 3 and the primary propulsion ring 5 are both provided with corresponding primary through holes 13 , and the screw rod of the primary fixing bolt 11 passes through the primary through holes 13 .

[0030] Furthermore, corresponding secondary through holes 14 are provided on the fastening ring 4 and the secondary propulsion ring 6 , and the screw rod of the secondary fixing bolt 12 passes through the secondary through hole 14 .

[0031] Furthermore, an internal thread 15 is provided on the inner wall of the fastening ring 4 , and an external thread 16 is provided on the outer surface of the steel casing 1 at a position corresponding to the fastening ring 4 .

[0032] It is worth noting that a sealing gasket 17 is provided on one side opposite to the fixing ring 3 and the fastening ring 4 , and both the primary through hole 13 and the secondary through hole 14 penetrate the sealing gasket 17 .

[0033] It is worth noting that the inner walls of the primary fitting ring 7 and the secondary fitting ring 8 are both provided with a primary sealing ring 18 , and the inner walls of the primary fitting groove 9 and the secondary fitting groove 10 are both provided with a secondary sealing ring 19 .

[0034] It is worth mentioning that the inner diameters of the primary propulsion ring 5 , the secondary propulsion ring 6 , the primary fitting ring 7 , and the secondary fitting ring 8 are consistent, and the inner diameters of the primary propulsion ring 5 , the secondary propulsion ring 6 , the primary fitting ring 7 , and the secondary fitting ring 8 are slightly larger than the outer diameter of the tube body 2 .

[0035] It is worth mentioning that the steel casing 1 is composed of an outer tube 101, an inner tube 102, and a welding ring 103. The inner tube 102 is arranged inside the outer tube 101. Both ends of the outer tube 101 and the inner tube 102 are fixedly connected to the welding ring 103. The outer tube 101 and the inner tube 102 are fixedly connected with uniformly distributed reinforcing brackets 104, which enhance the stress strength of the steel casing 1 to prevent the steel casing 1 from deforming, squeezing, and damaging the tube body 2.

[0036] It is worth emphasizing that a cavity 20 is formed between the reinforcing brackets 104, a water-absorbing filler 21 is arranged in the cavity 20, and a through hole 22 is arranged on the inner tube 102, which connects to the cavity 20. When water leaks in the pipe body 2 inside the steel casing 1, water can be absorbed in time to prevent it from seeping into the wall.

[0037] Working principle and process: Insert the end of the steel casing 1 away from the fixing ring 3 into the reserved hole on the wall, and make the fixing ring 3 outside the wall, connect the fastening ring 4 to the steel casing 1, rotate the fastening ring 4 to make it move under the action of the thread, so that the fixing ring 3 and the fastening ring 4 are both close to the wall, move the first-level pushing ring 5 and the second-level pushing ring 6 close to the fixing ring 3 and the fastening ring 4 respectively, and align the first-level through hole 13 and the second-level through hole 14, and insert the first-level fixing bolt 11 and the second-level fixing bolt 12 into the first-level through hole 13 and the second-level through hole 14 respectively. In the first through hole 14, the first-level fixing bolt 11 and the second-level fixing bolt 12 are respectively connected to the corresponding screw holes on the wall. In the process of tightening the first-level fixing bolt 11 and the second-level fixing bolt 12, the first-level pushing ring 5 and the second-level pushing ring 6 will approach each other, and then the first-level fitting ring 7 and the second-level fitting ring 8 will extend into the first-level fitting groove 9 and the second-level fitting groove 10. As the first-level fitting ring 7 and the second-level fitting ring 8 are gradually pushed forward, the two fitting rings will squeeze the inner wall of the steel casing 1 and the outer wall of the pipe body 2, so that the sealing between them is enhanced.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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. An assembled steel pipe casing, comprising a steel casing (1), characterized in that: A tube body (2) is provided on the inner side of the steel casing (1); a fixing ring (3) is fixedly connected to one end of the steel casing (1); a fastening ring (4) is threadedly connected to the other end of the steel casing (1); a primary propulsion ring (5) and a secondary propulsion ring (6) are respectively provided on the side of the fixing ring (3) away from the fastening ring (4); a primary fitting ring (7) and a secondary fitting ring (8) are respectively fixedly connected to the side opposite to the primary propulsion ring (5) and the secondary propulsion ring (6); a primary fitting groove (9) and a secondary fitting groove (10) are respectively provided at the positions of the two ends of the inner wall of the steel casing (1); the primary propulsion ring (5) and the secondary propulsion ring (6) are matched with the primary fitting groove (9) and the secondary fitting groove (10) respectively; the primary propulsion ring (5) and the secondary propulsion ring (6) are respectively provided with uniformly distributed primary fixing bolts (11) and secondary fixing bolts (12); the primary fixing bolts (11) and the secondary fixing bolts (12) respectively penetrate the fixing ring (3) and the fastening ring (4).

2. The assembled steel pipe casing according to claim 1, characterized in that: The fixing ring (3) and the primary propulsion ring (5) are both provided with corresponding primary through holes (13), and the screw rod of the primary fixing bolt (11) passes through the primary through hole (13).

3. The assembled steel pipe casing according to claim 1, characterized in that: The fastening ring (4) and the secondary propulsion ring (6) are both provided with corresponding secondary through holes (14), and the screw rod of the secondary fixing bolt (12) passes through the secondary through hole (14).

4. The assembled steel pipe casing according to claim 1, characterized in that: The inner wall of the fastening ring (4) is provided with an internal thread (15), and the outer surface of the steel casing (1) is provided with an external thread (16) at a position corresponding to the fastening ring (4).

5. The assembled steel pipe casing according to claim 2, characterized in that: A sealing gasket (17) is provided on one side of the fixing ring (3) and the fastening ring (4) opposite to each other, and the primary through hole (13) and the secondary through hole (14) both penetrate the sealing gasket (17).

6. The assembled steel pipe casing according to claim 1, characterized in that: The inner walls of the primary fitting ring (7) and the secondary fitting ring (8) are both provided with a primary sealing ring (18), and the inner walls of the primary fitting groove (9) and the secondary fitting groove (10) are both provided with a secondary sealing ring (19).

7. The assembled steel pipe casing according to claim 1, characterized in that: The inner diameters of the primary propulsion ring (5), the secondary propulsion ring (6), the primary fitting ring (7), and the secondary fitting ring (8) are consistent, and the inner diameters of the primary propulsion ring (5), the secondary propulsion ring (6), the primary fitting ring (7), and the secondary fitting ring (8) are slightly larger than the outer diameter of the tube body (2).

8. The assembled steel pipe casing according to claim 1, characterized in that: The steel casing (1) is composed of an outer tube (101), an inner tube (102), and a welding ring (103); the inner tube (102) is arranged inside the outer tube (101); both ends of the outer tube (101) and the inner tube (102) are fixedly connected to the welding ring (103); and uniformly distributed reinforcing brackets (104) are fixedly connected between the outer tube (101) and the inner tube (102).

9. The assembled steel pipe casing according to claim 8, characterized in that: A cavity (20) is formed between the reinforcing brackets (104), a water-absorbing filler (21) is provided in the cavity (20), and a through hole (22) is provided on the inner tube (102), the through hole (22) being in communication with the cavity (20).

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