A ventilation duct connection device for clean room

Abstract

The utility model relates to the technical field of pipe connection, and discloses a ventilation pipe connection device for a clean room, comprising a first pipe and a second pipe, wherein the surfaces of the first pipe and the second pipe are provided with a mounting mechanism, and the left end of the second pipe is provided with a sealing mechanism. The first pipe and the second pipe are fitted together through a first flange and a second flange, at which time a fixing plate and a screw block are inserted into a slide groove, and then the internal threaded barrel is moved to the left along the surface of the second pipe until the screw block is located in the internal threaded barrel, and then the internal threaded barrel is rotated to make the screw block threadedly connected in the internal threaded barrel, at which time the first pipe and the second pipe are driven to move toward each other until the first pipe and the second pipe are tightly fitted, and the installation process does not require traditional bolts for installation and fixing, and the installation process is simple and labor-saving, and the pressure ring makes the first sealing ring, the second sealing ring and the sealing strip fill the connection groove to seal the connection between the first pipe and the second pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a ventilation pipeline connection device for a clean room. Background Art

[0002] Cleanroom ventilation ducts are an indispensable part of cleanrooms. They are responsible for delivering filtered air to the interior of the cleanroom while ensuring the cleanliness and pressure control of the indoor air. The design, installation and maintenance of ventilation ducts are crucial to maintaining the cleanliness of the cleanroom.

[0003] According to application number 202320942507.3, a connection device for installing a ventilation duct includes a first ventilation duct and a second ventilation duct, wherein connecting flanges are provided at both ends of the first ventilation duct and the second ventilation duct, and a connecting component is provided outside the connecting flange at one end inside the first ventilation duct and the second ventilation duct.

[0004] Through the design of the connection assembly, the device adjusts the size of the ventilation ducts by moving the connection blocks of the upper connection piece and the lower connection piece in the limit chamber when splicing and assembling ventilation ducts of different specifications, and then tightens and fixes the bolts at the top of the upper connection piece and the bottom of the lower connection piece, tightens or loosens the bolts on both sides through nuts, and fixes the connection flange between the first ventilation duct and the second ventilation duct in the limit noise on the inner surface of the upper connection piece and the lower connection piece to complete the splicing and fixing between the two. However, the fixing method of the device is to fix and install by bolts, and the device is provided with multiple bolts, so the installation process is troublesome and time-consuming. Utility Model Content

[0005] The utility model aims to provide a ventilation duct connection device for a clean room to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a ventilation duct connection device for a clean room, comprising a first duct and a second duct, the surfaces of the first duct and the second duct are provided with mounting mechanisms, and the left end of the second duct is provided with a sealing mechanism;

[0007] The mounting mechanism includes a first flange and a second flange, the first flange is fixedly connected to the right end of the first pipe surface, the second flange is fixedly connected to the left end of the second pipe surface, a fixing plate is fixedly connected to the right side of the first flange, a screw block is fixedly connected to the right end of the fixing plate surface, a sliding groove is provided on the left side of the second flange, and an internal threaded cylinder is sleeved on the second pipe surface.

[0008] Preferably, there are four groups of fixing plates and screw blocks, which are arranged in a circular array on the right side of the second flange.

[0009] Preferably, the height of the slide groove is greater than the height of the fixing plate and the screw block.

[0010] Preferably, the screw block is threadably connected to the internal threaded barrel.

[0011] Preferably, the sealing mechanism includes a connecting groove and a pressure ring, the connecting groove is opened at the left end of the second pipe, the pressure ring is fixedly connected to the right end of the first pipe, a first sealing ring is arranged in the connecting groove, a second sealing ring is arranged in the connecting groove, and a sealing strip is arranged in the connecting groove between the first sealing ring and the second sealing ring.

[0012] Preferably, the surface of the first sealing ring is in close contact with the inner and outer surfaces of the connecting groove, and the second sealing ring is in close contact with the inner surface of the connecting groove.

[0013] Preferably, the diameter of the first sealing ring is greater than the diameter of the second sealing ring.

[0014] The new invention provides a ventilation duct connection device for a clean room, which has the following beneficial effects:

[0015] 1. The ventilation duct connection device for clean rooms uses an installation mechanism to fit the first duct and the second duct through the first flange and the second flange. At this time, the fixing plate and the screw block are inserted into the slide groove, and then the internal threaded barrel is moved to the left along the surface of the second duct until the screw block is located in the internal threaded barrel. Then, the internal threaded barrel is rotated to make the screw block threadedly connected in the internal threaded barrel. At this time, the first duct and the second duct are driven to move toward each other until the first duct and the second duct are tightly fitted. In addition, the installation process does not require traditional bolts for installation and fixing, and the installation process is simple and labor-saving.

[0016] 2. The ventilation duct connecting device for the clean room uses a sealing mechanism. Before the first duct and the second duct are installed, the first sealing ring and the second sealing ring are placed in the connecting groove, and then the sealing strip is placed in the connecting groove and located between the first sealing ring and the second sealing ring. Then the first duct and the second duct are moved toward each other, thereby driving the pressure ring to move into the connecting groove. When the first duct and the second duct are tightly fitted, the pressure ring will squeeze the sealing strip, thereby deforming the sealing strip and squeezing the first sealing ring and the second sealing ring, so that the first sealing ring, the second sealing ring and the sealing strip fill the connecting groove, and the connection between the first duct and the second duct is sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the sealing mechanism of the utility model structure;

[0020] Figure 3 This is a schematic diagram of the disassembly of the structural installation mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional front cross-sectional schematic diagram of the structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the connecting groove and the pressure ring of the utility model structure.

[0023] In the figure: 1. first pipeline; 2. second pipeline; 3. mounting mechanism; 31. first flange; 32. second flange; 33. fixing plate; 34. screw block; 35. slide groove; 36. internal threaded cylinder; 4. sealing mechanism; 41. connecting groove; 42. pressure ring; 43. first sealing ring; 44. second sealing ring; 45. sealing strip. DETAILED DESCRIPTION

[0024] 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.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model provides the following technical solutions:

[0027] Embodiment 1

[0028] See also Figure 1-4The utility model provides a technical solution: a ventilation duct connection device for a clean room, comprising a first duct 1 and a second duct 2, a mounting mechanism 3 is arranged on the surface of the first duct 1 and the second duct 2, and a sealing mechanism 4 is arranged on the left end of the second duct 2;

[0029] The mounting mechanism 3 includes a first flange 31 and a second flange 32. The first flange 31 is fixedly connected to the right end of the surface of the first pipe 1, and the second flange 32 is fixedly connected to the left end of the surface of the second pipe 2. A fixing plate 33 is fixedly connected to the right side of the first flange 31, and a screw block 34 is fixedly connected to the right end of the surface of the fixing plate 33. A sliding groove 35 is provided on the left side of the second flange 32, and an internal threaded tube 36 is sleeved on the surface of the second pipe 2.

[0030] There are four sets of fixing plates 33 and screw blocks 34 , which are arranged in a circular array on the right side of the second flange 32 .

[0031] The height of the slide groove 35 is greater than the height of the fixing plate 33 and the screw block 34 .

[0032] The screw block 34 is threadedly connected to the internal threaded tube 36 .

[0033] Embodiment 2

[0034] See also Figure 5 , and on the basis of the first embodiment, a sealing mechanism 4 is further obtained.

[0035] The sealing mechanism 4 includes a connecting groove 41 and a pressure ring 42. The connecting groove 41 is opened at the left end of the second pipe 2, and the pressure ring 42 is fixedly connected to the right end of the first pipe 1. A first sealing ring 43 is arranged in the connecting groove 41, and a second sealing ring 44 is arranged in the connecting groove 41. A sealing strip 45 is arranged in the connecting groove 41 between the first sealing ring 43 and the second sealing ring 44.

[0036] The surface of the first sealing ring 43 is in close contact with the inner and outer surfaces of the connecting groove 41 , and the second sealing ring 44 is in close contact with the inner surface of the connecting groove 41 .

[0037] The diameter of the first sealing ring 43 is greater than the diameter of the second sealing ring 44 .

[0038] In actual operation, when the device is used, the first pipe 1 and the second pipe 2 are fitted together through the first flange 31 and the second flange 32. At this time, the fixing plate 33 and the screw block 34 are inserted into the slide groove 35. Then, the internal threaded barrel 36 is moved to the left along the surface of the second pipe 2 until the screw block 34 is located in the internal threaded barrel 36. Then, the internal threaded barrel 36 is rotated to make the screw block 34 threadedly connected in the internal threaded barrel 36. At this time, the first pipe 1 and the second pipe 2 are driven to move toward each other until the first pipe 1 and the second pipe 2 are tightly fitted. In addition, the installation process does not require traditional bolts for installation and fixing, and the installation process is simple and labor-saving.

[0039] Before installing the first pipe 1 and the second pipe 2, place the first sealing ring 43 and the second sealing ring 44 in the connecting groove 41, and then place the sealing strip 45 in the connecting groove 41 and between the first sealing ring 43 and the second sealing ring 44. Then, move the first pipe 1 and the second pipe 2 toward each other, thereby driving the pressure ring 42 to move into the connecting groove 41. When the first pipe 1 and the second pipe 2 are tightly fitted, the pressure ring 42 squeezes the sealing strip 45, thereby deforming the sealing strip 45 and squeezing the first sealing ring 43 and the second sealing ring 44. Thus, the first sealing ring 43, the second sealing ring 44 and the sealing strip 45 fill the connecting groove 41, and the connection between the first pipe 1 and the second pipe 2 is sealed.

[0040] 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. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A ventilation duct connection device for a clean room, comprising a first duct (1) and a second duct (2), characterized in that: The surfaces of the first pipe (1) and the second pipe (2) are provided with mounting mechanisms (3), and the left end of the second pipe (2) is provided with a sealing mechanism (4); The mounting mechanism (3) comprises a first flange (31) and a second flange (32); the first flange (31) is fixedly connected to the right end of the surface of the first pipe (1); the second flange (32) is fixedly connected to the left end of the surface of the second pipe (2); a fixing plate (33) is fixedly connected to the right side of the first flange (31); a screw block (34) is fixedly connected to the right end of the surface of the fixing plate (33); a sliding groove (35) is provided on the left side of the second flange (32); and an internally threaded cylinder (36) is sleeved on the surface of the second pipe (2).

2. A ventilation duct connection device for a clean room according to claim 1, characterized in that: There are four groups of fixing plates (33) and screw blocks (34), which are arranged in a circular array on the right side of the second flange (32).

3. A ventilation duct connection device for a clean room according to claim 1, characterized in that: The height of the slide groove (35) is greater than the height of the fixing plate (33) and the screw block (34).

4. A ventilation duct connection device for a clean room according to claim 1, characterized in that: The screw block (34) is threadedly connected to the internal threaded cylinder (36).

5. A ventilation duct connection device for a clean room according to claim 1, characterized in that: The sealing mechanism (4) comprises a connecting groove (41) and a pressure ring (42); the connecting groove (41) is opened at the left end of the second pipe (2); the pressure ring (42) is fixedly connected to the right end of the first pipe (1); a first sealing ring (43) is arranged in the connecting groove (41); a second sealing ring (44) is arranged in the connecting groove (41); and a sealing strip (45) is arranged in the connecting groove (41) between the first sealing ring (43) and the second sealing ring (44).

6. A ventilation duct connection device for a clean room according to claim 5, characterized in that: The surface of the first sealing ring (43) is in close contact with the inner and outer surfaces of the connecting groove (41), and the surface of the second sealing ring (44) is in close contact with the inner surface of the connecting groove (41).

7. A ventilation duct connection device for a clean room according to claim 5, characterized in that: The diameter of the first sealing ring (43) is greater than the diameter of the second sealing ring (44).

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