Sealing connection structure of dust removal ventilation pipe

Abstract

The utility model provides a dust removal ventilation pipe sealing connection structure which comprises a front pipeline, a rear pipeline and a dustproof assembly, and one end of the front pipeline is fixedly connected with a front flange; one end of the rear pipeline is fixedly connected with a rear flange; an annular groove is formed in the inner side of the front flange; the inner side of the rear flange is fixedly connected with a butt joint clamping ring matched with the annular groove. A dustproof chuck is clamped to the inner side of the butt joint clamping ring. Cylindrical grooves are formed in the surfaces of the dustproof chuck and the butt joint clamping ring; the inner wall of the cylindrical groove is slidably connected with a sliding positioning rod. The top end of the sliding positioning rod is fixedly connected with a hemispherical clamping block; the inner side of the annular groove is fixedly connected with an ejector rod hemisphere; the surface of the sliding positioning rod is fixedly connected with a fixed clamping ring; and through the arrangement of the dustproof assembly, dust accumulated inside can be conveniently cleaned, the ventilation effect is guaranteed, the situation of internal corrosion is also avoided, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation pipes, in particular to a dust removal ventilation pipe sealing connection structure. Background Art

[0002] The ventilation duct is a hollow pipe used for ventilation. Its shape is mostly round or square. It plays an important role in the ventilation system. Its design, production and installation need to strictly follow relevant specifications and requirements to ensure the normal operation and safety of the ventilation system.

[0003] A Chinese patent with publication number CN213395721U discloses a ventilation duct with a glass fiber reinforced plastic structure, including a ventilation pipe device, the ventilation pipe device includes a ventilation pipe and a flange, the outer surface of the ventilation pipe is fixedly connected with a flange, the ventilation pipe is sleeved with a dust removal device, the dust removal device includes a rubber sleeve, a through-hole mesh, a sealing cap, an anti-corrosion layer and a fan mechanism, the rubber sleeve is fixedly connected with a through-hole mesh, the ventilation pipe is fixedly connected with an anti-corrosion layer, the anti-corrosion layer is fixedly connected with a fan mechanism, and the protective sleeve is set in two groups. The utility model is provided with an installation device, and the connection of the ventilation pipe can be sealed by the rubber sleeve and the anti-corrosion layer. At the same time, the anti-corrosion layer can prevent the ventilation pipe from being corroded and causing air leakage. At the same time, by pulling the pull rod, the protective sleeve can be easily disassembled, and the device can be easily disassembled and replaced.

[0004] As mentioned above, the patent provides a ventilation duct with a fiberglass structure, which can prevent the ventilation pipe from rusting and causing air leakage, and is also convenient for disassembly. However, it cannot achieve the dust-proof effect during operation, and with the continuous use over time, dust will continue to adhere to the inner wall of the pipe. If the dust is not cleaned for a long time, it will affect the ventilation effect and easily cause internal corrosion, seriously affecting the service life of the pipe. Utility Model Content

[0005] The utility model provides a dust removal ventilation pipe sealing connection structure to solve the problems raised in the background technology.

[0006] In order to solve the above problems, the utility model provides a dust removal ventilation pipe sealing connection structure, including a front pipe, a rear pipe and a dust-proof component, wherein one end of the front pipe is fixedly connected to the front flange; one end of the rear pipe is fixedly connected to the rear flange; an annular groove is provided on the inner side of the front flange; a docking clamp ring adapted to the annular groove is fixedly connected to the inner side of the rear flange; a dust-proof chuck is clamped on the inner side of the docking clamp ring; a cylindrical groove is provided on the surfaces of the dust-proof chuck and the docking clamp ring; a sliding positioning rod is slidably connected to the inner wall of the cylindrical groove; a hemispherical clamping block is fixedly connected to the top end of the sliding positioning rod; a push rod hemisphere is fixedly connected to the inner side of the annular groove; a fixed clamp ring is fixedly connected to the surface of the sliding positioning rod; a reset spring is sleeved on the surface of the sliding positioning rod; the top end of the reset spring is fixedly connected to the bottom of the fixed clamp ring.

[0007] Preferably: the number of the cylindrical grooves and the sliding positioning rods is set to six, and the six cylindrical grooves and the sliding positioning rods are evenly arranged on the surface circumference of the dustproof chuck; the outer surfaces of the front flange and the rear flange are both covered with waterproof sleeves.

[0008] Preferably, the surfaces of the front flange and the rear flange are both provided with an annular rail; and the inner wall of the annular rail is clamped with a sealing ring.

[0009] Preferably: one side of the front flange is slidably connected with a connecting bolt; one end of the connecting bolt passes through the front flange and the rear flange and extends to one side of the rear flange; one end of the connecting bolt located on one side of the rear flange is threadedly connected with a fixing nut.

[0010] Preferably: the surfaces of the front pipe and the rear pipe are both fixedly connected with a support frame; the bottom of the support frame is fixedly connected with a support base.

[0011] The beneficial effects of adopting the above technical solution are:

[0012] By setting up a dust-proof component, when working, the front flange and the rear flange are connected by butt connection, an annular groove is provided on the front flange, and a butt clamp is fixed on the rear flange. When butt connection, the butt clamp is inserted into the annular groove, and the dust-proof chuck is set in the butt clamp to achieve the dust-proof effect. In order to achieve the fixing effect, the hemisphere of the push rod can be used to rest on the hemispherical clamp block, so that the sliding positioning rod is clamped into the cylindrical groove in the dust-proof chuck. For subsequent disassembly, it is only necessary to detach the hemisphere of the push rod from the hemispherical clamp, and then the elastic force of the reset spring will bounce up the fixed clamp, so that the sliding positioning rod can be removed from the cylindrical groove, and then the dust-proof chuck can be removed, and the dust accumulated inside can be cleaned, thereby ensuring the ventilation effect, avoiding internal rust, and improving the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another viewing angle.

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the front pipe connection structure of the utility model.

[0017] Figure 5 It is a schematic diagram of the rear-mounted pipeline connection structure of the utility model.

[0018] Among them: 1. front pipe; 2. rear pipe; 3. front flange; 4. rear flange; 5. annular groove; 6. docking clamp; 7. dustproof chuck; 8. cylindrical groove; 9. sliding positioning rod; 10. hemispherical block; 11. push rod hemisphere; 12. fixed clamp; 13. reset spring; 14. waterproof cover; 15. annular rail; 16. sealing ring; 17. connecting bolt; 18. fixing nut; 19. support frame; 20. support base. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 - Figure 5As shown, in this embodiment, a dust removal ventilation pipe sealing connection structure includes a front pipe 1, a rear pipe 2 and a dustproof component, one end of the front pipe 1 is fixedly connected to a front flange 3; one end of the rear pipe 2 is fixedly connected to a rear flange 4; an annular groove 5 is provided on the inner side of the front flange 3; a docking clamp 6 adapted to the annular groove 5 is fixedly connected to the inner side of the rear flange 4; a dustproof chuck 7 is clamped on the inner side of the docking clamp 6; a cylindrical groove 8 is provided on the surfaces of the dustproof chuck 7 and the docking clamp 6; a sliding positioning rod 9 is slidably connected to the inner wall of the cylindrical groove 8; a hemispherical clamping block 10 is fixedly connected to the top of the sliding positioning rod 9; a push rod hemisphere 11 is fixedly connected to the inner side of the annular groove 5; a fixed clamp 12 is fixedly connected to the surface of the sliding positioning rod 9; a reset spring 13 is sleeved on the surface of the sliding positioning rod 9; the top of the reset spring 13 is fixedly connected to the bottom of the fixed clamp 12.

[0023] Through the above technical scheme, the front flange 3 is fixed on the front pipe 1, and the rear flange 4 is fixed on the rear pipe 2. During operation, the front flange 3 and the rear flange 4 are connected by docking. The front flange 3 is provided with an annular groove 5, and a docking clamping ring 6 is fixed on the rear flange 4. When docking, the docking clamping ring 6 is inserted into the annular groove 5, and the dustproof chuck 7 is arranged in the docking clamping ring 6 to achieve the dustproof effect. In order to achieve the fixing effect, the push rod hemisphere 11 can be used to abut against the hemispherical clamping block 10, so that the sliding positioning rod 9 is clamped into the cylindrical groove 8 in the dustproof chuck 7. For subsequent disassembly, it is only necessary to detach the push rod hemisphere 11 from the hemispherical clamping ring, and then the elastic force of the reset spring 13 will bounce the fixing clamping ring 12, so that the sliding positioning rod 9 can be removed from the cylindrical groove 8, and then the dustproof chuck 7 can be removed, and the dust accumulated inside can be cleaned, thereby ensuring the ventilation effect, avoiding the internal rust, and improving the service life of the pipeline.

[0024] like Figure 3 - Figure 5 As shown, the number of the cylindrical grooves 8 and the sliding positioning rods 9 is set to six, and the six cylindrical grooves 8 and the sliding positioning rods 9 are evenly arranged on the surface circumference of the dustproof chuck 7; the outer surfaces of the front flange 3 and the rear flange 4 are both provided with waterproof sleeves 14; the surfaces of the front flange 3 and the rear flange 4 are both provided with annular rails 15; the inner wall of the annular rail 15 is clamped with a sealing ring 16.

[0025] Through the above technical scheme, six cylindrical grooves 8 and sliding positioning rods 9 are set, which are evenly arranged on the surface circumference of the dustproof chuck 7. The dustproof chuck 7 can be fixed in multiple directions to ensure stability after installation. A waterproof sleeve 14 is sleeved on the outside of the front flange 3 and the rear flange 4 to waterproof the internal connection. In addition, an annular rail 15 is provided on the surface of the front flange 3 and the rear flange 4 for placing a sealing ring 16. The sealing ring 16 is used to seal the connection, thereby improving the adaptability of use.

[0026] like Figure 1 and Figure 2 As shown, one side of the front flange 3 is slidably connected with a connecting bolt 17; one end of the connecting bolt 17 passes through the front flange 3 and the rear flange 4 and extends to one side of the rear flange 4; one end of the connecting bolt 17 located on one side of the rear flange 4 is threadedly connected with a fixing nut 18; the surfaces of the front pipe 1 and the rear pipe 2 are fixedly connected with a support frame 19; the bottom of the support frame 19 is fixedly connected with a support base 20.

[0027] Through the above technical solution, the connecting bolt 17 passes through the front flange 3 and the rear flange 4, and the other end is threadedly connected to the fixing nut 18. The connecting bolt 17 cooperates with the fixing nut 18 to fix the front flange 3 and the rear flange 4 together, thereby realizing the connection between the front pipe 1 and the rear pipe 2. A support frame 19 is set to support the front pipe 1 and the rear pipe 2. A support base 20 is fixed at the bottom of the support frame 19, and the support base 20 is used to support the support frame 19.

[0028] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; the technology not described in detail in the present invention is implemented with the existing technology.

Claims

1. A dust removal ventilation pipe sealing connection structure, comprising a front pipe (1), a rear pipe (2) and a dust prevention component, characterized in that: One end of the front pipe (1) is fixedly connected to a front flange (3); one end of the rear pipe (2) is fixedly connected to a rear flange (4); an annular groove (5) is provided on the inner side of the front flange (3); a docking clamping ring (6) adapted to the annular groove (5) is fixedly connected to the inner side of the rear flange (4); a dustproof chuck (7) is clamped on the inner side of the docking clamping ring (6); the surfaces of the dustproof chuck (7) and the docking clamping ring (6) are both provided with a cylindrical groove (8) ; The inner wall of the cylindrical groove (8) is slidably connected to a sliding positioning rod (9); the top of the sliding positioning rod (9) is fixedly connected to a hemispherical clamping block (10); the inner side of the annular groove (5) is fixedly connected to a push rod hemisphere (11); the surface of the sliding positioning rod (9) is fixedly connected to a fixed snap ring (12); the surface of the sliding positioning rod (9) is sleeved with a reset spring (13); the top of the reset spring (13) is fixedly connected to the bottom of the fixed snap ring (12).

2. A dust removal ventilation pipe sealing connection structure according to claim 1, characterized in that: The number of the cylindrical grooves (8) and the sliding positioning rods (9) is set to six, and the six cylindrical grooves (8) and the sliding positioning rods (9) are evenly arranged on the surface circumference of the dustproof chuck (7); the outer surfaces of the front flange (3) and the rear flange (4) are both provided with waterproof sleeves (14).

3. A dust removal ventilation pipe sealing connection structure according to claim 1, characterized in that: The surfaces of the front flange (3) and the rear flange (4) are both provided with an annular rail (15); the inner wall of the annular rail (15) is clamped with a sealing ring (16).

4. A dust removal ventilation pipe sealing connection structure according to claim 1, characterized in that: A connecting bolt (17) is slidably connected to one side of the front flange (3); one end of the connecting bolt (17) passes through the front flange (3) and the rear flange (4) and extends to one side of the rear flange (4); and one end of the connecting bolt (17) located on one side of the rear flange (4) is threadedly connected to a fixing nut (18).

5. A dust removal ventilation pipe sealing connection structure according to claim 1, characterized in that: The surfaces of the front pipe (1) and the rear pipe (2) are both fixedly connected to a support frame (19); the bottom of the support frame (19) is fixedly connected to a support base (20).

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