Purifying air pipe connecting and sealing structure

Abstract

The utility model discloses a purification air pipe connecting and sealing structure which comprises a plurality of pipe bodies, two adjacent pipe bodies are provided with bent pipes, the bent pipes are fixedly connected with the pipe bodies through installation mechanisms, annular grooves are formed in the end portions of the pipe bodies, inserting pipes are fixedly arranged at the end portions of the bent pipes, annular blocks are fixedly arranged on the inner walls of the annular grooves, and the annular blocks are fixedly connected with the bent pipes. The outer wall of the annular block is provided with an annular insertion groove, the insertion pipe is inserted into the annular insertion groove, the inner wall of the annular insertion groove is fixedly provided with an annular pad, the insertion pipe extrudes the annular pad, the installation mechanism comprises two positioning rings, one positioning ring fixedly sleeves the end of the pipe body, the other positioning ring fixedly sleeves the end of the bent pipe, and the annular pad is fixedly arranged on the inner wall of the annular insertion groove. The air pipe connecting structure solves the problems that a traditional air pipe connecting mode usually adopts flange connection, the flange connection is simple in structure and convenient to install, but the sealing performance is poor, gas leakage is prone to occurring, and the quality of air in a clean room is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to purification air pipe connection technical field, in particular to a kind of purification air pipe connection sealing structure. BACKGROUND

[0002] In modern industrial production and medical fields, the construction and maintenance of clean room are crucial to ensure the sterility of production environment. Among them, the connection sealing performance of the purification air pipe system, as a key component of clean room air purification, directly affects the delivery effect of disinfectant gas (such as hydrogen peroxide vapor, VHP) and the sterility level of clean room.

[0003] The traditional air pipe connection method usually adopts flange connection. Although the flange connection is simple in structure and easy to install, its sealing performance is poor, and gas leakage is easy to occur, which leads to the decline of air quality in the clean room. Therefore, the utility model provides a purification air pipe connection sealing structure to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model aims to provide a purification air pipe connection sealing structure.

[0005] To achieve the above purpose, the utility model provides a purification air pipe connection sealing structure, which comprises a pipe body. The pipe body is provided with a plurality of pipe bodies. Adjacent two pipe bodies are provided with an elbow pipe. The elbow pipe is fixedly connected with the pipe body through a mounting mechanism. The end of the pipe body is provided with an annular groove. The end of the elbow pipe is fixedly provided with a cannula. The inner wall of the annular groove is fixedly provided with an annular block. The outer wall of the annular block is provided with an annular insertion slot. The cannula is inserted into the annular insertion slot. The inner wall of the annular insertion slot is fixedly provided with an annular pad. The cannula extrudes the annular pad.

[0006] Further, the mounting mechanism comprises a positioning ring. One of the positioning rings is fixedly sleeved on the end of the pipe body. The other positioning ring is fixedly sleeved on the end of the elbow pipe. The two positioning rings are detachably installed and fixed.

[0007] Further, the inner side of one of the positioning rings is fixedly provided with a sealing ring. A plurality of threaded rods are equally angularly arranged between the two positioning rings. One end of the threaded rod is fixedly provided with a screw head. The other end of the threaded rod is threadedly sleeved with a nut.

[0008] Further, the inner side of the nut is provided with a gasket. The gasket is sleeved on the threaded rod. The gasket is limitedly matched with the adjacent positioning ring. The inner side of the screw head is fixedly provided with a limiting block. The limiting block is limitedly matched with the adjacent positioning ring.

[0009] Further, the outer wall of the screw head is provided with a clamping hole, and the longitudinal section of the clamping hole is hexagonal.

[0010] Further, the sealing ring comprises a first rubber layer, and first connecting layers are fixedly arranged on the two sides of the first rubber layer respectively, and first sealing layers are fixedly arranged on the sides, away from the first rubber layer, of the first connecting layers.

[0011] Further, the annular pad comprises a second rubber layer, and a second connecting layer is fixedly arranged on the outer side of the second rubber layer, and a second sealing layer is fixedly arranged on the side, away from the second rubber layer, of the second connecting layer.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、 the utility model discloses a pipe body is fixedly arranged with the pipe of the end in the pipe of the end, and the end of the pipe body is provided with the annular groove, and the inner wall of the annular groove is fixedly arranged with the annular block, and the outer wall of the annular block is provided with the annular slot, and the pipe is inserted into the annular slot, and at this time, the pipe will extrude the annular pad of the inner wall of the annular slot, and the annular pad will be elastically buffered, thereby realizing the primary sealing, and by screwing the nut, the two positioning rings are close to each other and tightly fit, and the firmness of connection is further enhanced, and the inner side of one of the positioning rings is fixedly arranged with the sealing ring, and in the process of screwing the nut, the sealing ring is extruded, and the sealing property of the connection is further improved.

[0014] 2、 the utility model discloses a first rubber layer and a first sealing layer are arranged, so that the sealing ring realizes the sealing effect when being extruded, and a second rubber layer and a second sealing layer are arranged, so that the annular pad can better fit the outer wall of the pipe when the pipe is inserted, and good sealing effect is realized. DRAWINGS

[0015] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description of the utility model, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can also be obtained by the drawings for the ordinary skilled in the art without any creative labor.

[0016] Figure 1 It is the perspective view provided by the utility model;

[0017] Figure 2 It is the front view provided by the utility model;

[0018] Figure 3 It is the enlarged schematic view of A part provided by the utility model;

[0019] Figure 4Is the B part of the utility model provides the enlarged schematic view;

[0020] Figure 5 Is the utility model provides a partial sectional view, and

[0021] Figure 6 Is the C part of the utility model provides the enlarged schematic view;

[0022] Figure 7 Is the utility model provides the annular pad internal structure schematic view;

[0023] Figure 8 Is the utility model provides the sealing ring internal structure schematic view.

[0024] Reference signs are explained as follows:

[0025] 1, pipe body;2, elbow;3, annular slot;4, positioning ring;5, screw cap;6, threaded rod;7, limit block;8, clamping hole;9, screw head;10, sealing ring;101, first rubber layer;102, first sealing layer;103, first connecting layer;11, gasket;12, annular groove;13, cannula;14, annular block;15, annular pad;151, second rubber layer;152, second connecting layer;153, second sealing layer. Specific embodiments

[0026] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] The terms "include" and "have" and any variations thereof in the specification and claims of the utility model and the above drawing description are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the utility model or the above drawings are used to distinguish different objects, not to describe a specific order.

[0028] Please refer to Figures 1-8The utility model provides a kind of purifying air pipe connecting sealing structure, including pipe body 1, pipe body 1 is equipped with several, adjacent two pipe body 1 is equipped with elbow pipe 2, elbow pipe 2 is fixedly connected with pipe body 1 by mounting mechanism, pipe body 1 end is provided with annular groove 12, the inner wall of annular groove 12 is fixedly provided with annular block 14, the outer wall of annular block 14 is provided with annular slot 3, annular slot 3 is fixedly provided with annular pad 15 in the inner wall, annular pad 15 is extruded in annular slot 3, first, adjacent two pipe body 1 is connected by elbow pipe 2, the end of elbow pipe 2 is fixedly provided with spigot 13, while the end of pipe body 1 is provided with annular groove 12, the inner wall of annular groove 12 is fixedly provided with annular block 14, the outer wall of annular block 14 is provided with annular slot 3, spigot 13 is inserted into annular slot 3, annular pad 15 in the inner wall of annular slot 3 is extruded spigot 13 at this time, so that annular pad 15 occurs elastic buffer, to realize primary sealing, mounting mechanism includes positioning ring 4, positioning ring 4 is provided with two, one of positioning ring 4 is fixedly sleeved in the end of pipe body 1, another positioning ring 4 is fixedly sleeved in the end of elbow pipe 2, and the detachable installation and fixation between the two positioning ring 4, the inner side of one of positioning ring 4 is fixedly provided with sealing ring 10, a plurality of threaded rods 6 are arranged at equal angles between the two positioning ring 4, one end of threaded rod 6 is fixedly provided with screw head 9, and the other end of threaded rod 6 is threadedly sleeved with nut 5, and the two positioning ring 4 is connected by a plurality of threaded rods 6.Tighten nut 5, so that the two positioning ring 4 is close to each other and tightly adheres, to further enhance the firmness of connection, the inner side of one of positioning ring 4 is fixedly provided with sealing ring 10, sealing ring 10 is extruded in the process of tightening nut 5, to further improve the sealing property of connection.

[0029] As the improvement of the above technical scheme, the inner side of nut 5 is provided with gasket 11, gasket 11 is sleeved on threaded rod 6, gasket 11 is limitedly matched with its adjacent positioning ring 4, the inner side of nut 5 is provided with gasket 11, gasket 11 is sleeved on threaded rod 6, and is limitedly matched with its adjacent positioning ring 4, to improve the firmness of installation, the inner side of screw head 9 is fixedly provided with limiting block 7, limiting block 7 is limitedly matched with its adjacent positioning ring 4, the outer wall of screw head 9 is provided with clamping hole 8, the longitudinal section of clamping hole 8 is hexagonally arranged, the outer wall of screw head 9 is provided with clamping hole 8, and the longitudinal section of clamping hole 8 is hexagonally arranged, to facilitate the use of tools to be clamped and tightened.

[0030] As the improvement of the above technical scheme, the sealing ring 10 comprises a first rubber layer 101, and first connecting layers 103 are fixedly arranged on both sides of the first rubber layer 101, and first sealing layers 102 are fixedly arranged on the sides, away from the first rubber layer 101, of the first connecting layers 103; the first rubber layer 101 and the first sealing layers 102 are arranged, so that the sealing ring 10 can realize sealing effect when being extruded; the annular gasket 15 comprises a second rubber layer 151, a second connecting layer 152 is fixedly arranged on the outer side of the second rubber layer 151, and second sealing layers 153 are fixedly arranged on the sides, away from the second rubber layer 151, of the second connecting layer 152; the second rubber layer 151 and the second sealing layers 153 are arranged, so that the annular gasket 15 can better fit the outer wall of the insertion tube 13 through elastic buffering when the insertion tube 13 is inserted, and good sealing effect is realized.

[0031] The working principle and the use method of the utility model are as follows:

[0032] In use, firstly, the adjacent two pipe bodies 1 are connected through the elbow pipe 2, and the insertion tube 13 is inserted into the annular insertion slot 3; at this time, the insertion tube 13 extrudes the annular gasket 15 on the inner wall of the annular insertion slot 3, so that the annular gasket 15 is elastically buffered, thereby realizing preliminary sealing; the two positioning rings 4 are connected through a plurality of threaded rods 6; one end of the threaded rod 6 is fixedly provided with a screw head 9, and the other end is threadedly provided with a nut 5; by screwing the nut 5, the two positioning rings 4 are close to each other and tightly fit, thereby further enhancing the firmness of the connection; the inner side of one of the positioning rings 4 is fixedly provided with a sealing ring 10; in the process of screwing the nut 5, the sealing ring 10 is extruded, thereby further improving the sealing performance of the connection; the inner side of the nut 5 is provided with a gasket 11, which is sleeved on the threaded rod 6 and is limitedly matched with the adjacent positioning ring 4, thereby improving the firmness of the installation; the outer wall of the screw head 9 is provided with a clamping hole 8, which is hexagonally arranged in the longitudinal section, thereby facilitating the use of tools to be clamped and screwed; the first rubber layer 101 and the first sealing layers 102 are arranged, so that the sealing ring 10 can realize sealing effect when being extruded; the second rubber layer 151 and the second sealing layers 153 are arranged, so that the annular gasket 15 can better fit the outer wall of the insertion tube 13 through elastic buffering when the insertion tube 13 is inserted, thereby realizing good sealing effect.

[0033] The above description is only used to illustrate the technical scheme of the utility model, rather than limiting it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced equivalently; any equivalent structure or equivalent flow conversion made by using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the utility model.

Claims

1. A clean air duct connection seal structure, characterized by: The utility model provides a kind of pipe body (1), the pipe body (1) is provided with several, adjacent two the pipe body (1) is provided with elbow pipe (2), the elbow pipe (2) is fixedly connected with the pipe body (1) by mounting mechanism, the pipe body (1) end is provided with annular groove (12), the end of the elbow pipe (2) is fixedly provided with spigot (13), the inner wall of the annular groove (12) is fixedly provided with annular block (14), the outer wall of the annular block (14) is provided with annular insertion slot (3), the spigot (13) is inserted in the annular insertion slot (3), the inner wall of the annular insertion slot (3) is fixedly provided with annular pad (15), and the spigot (13) extrudes the annular pad (15).

2. A clean air duct connection seal according to claim 1, wherein: The mounting mechanism includes a positioning ring (4), the positioning ring (4) is provided with two, one of the positioning ring (4) is fixedly sleeved on the end of the pipe body (1), another positioning ring (4) is fixedly sleeved on the end of the elbow pipe (2), and the two positioning rings (4) can be detachably mounted and fixed.

3. A clean air duct connection seal according to claim 2, wherein: The inner side of one of the positioning ring (4) is fixedly provided with a sealing ring (10), a plurality of threaded rods (6) are arranged at equal angles between the two positioning rings (4), one end of the threaded rod (6) is fixedly provided with a screw head (9), and the other end of the threaded rod (6) is threadedly sleeved with a nut (5).

4. The clean air duct connection seal of claim 3, wherein: The inner side of the nut (5) is provided with a gasket (11), the gasket (11) is sleeved on the threaded rod (6), the gasket (11) is limitedly matched with the adjacent positioning ring (4), the inner side of the screw head (9) is fixedly provided with a limiting block (7), and the limiting block (7) is limitedly matched with the adjacent positioning ring (4).

5. A clean air duct connection seal according to claim 4, wherein: The outer wall of the screw head (9) is provided with a clamping hole (8), and the longitudinal section of the clamping hole (8) is hexagonally arranged.

6. A clean air duct connection seal according to claim 5, wherein: The sealing ring (10) includes a first rubber layer (101), and the two sides of the first rubber layer (101) are respectively fixedly provided with a first connecting layer (103), and the side, away from the first rubber layer (101), of the first connecting layer (103) is fixedly provided with a first sealing layer (102).

7. A clean air duct connection seal according to claim 6, wherein: The annular pad (15) includes a second rubber layer (151), and the outer side of the second rubber layer (151) is fixedly provided with a second connecting layer (152), and the side, away from the second rubber layer (151), of the second connecting layer (152) is fixedly provided with a second sealing layer (153).

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