Pipe structure

Abstract

The application relates to a pipeline structure, which comprises a shell, an inside of the shell is formed with a pipeline, and a first end of the pipeline is used for being communicated with an air collector; a blocking piece is arranged in the shell and is arranged to be movable relative to the shell to open or block the pipeline; a filtering structure is detachably mounted on the shell, and the filtering structure comprises a filtering piece located in the pipeline. The filtering structure is located outside the air collector and is independent of the air collector. When cleaning is needed, the filtering structure only needs to be detached from the shell, and the air collector does not need to be opened, so that the complexity caused by the fact that the filtering structure needs to be cleaned by frequently opening the air collector is avoided, the service life of the air collector is prolonged, and the filtering structure is conveniently cleaned.

Description

Technical Field

[0001] This application relates to the field of pipeline technology, and in particular to a pipeline structure. Background Technology

[0002] Air samplers, also known as aspirating smoke detectors or air sampling fire detectors, mainly use air sampling tubes to draw air from the protected area into the air sampler for analysis, thereby providing early warning of fires.

[0003] After using an air sampler, the pipes need to be cleaned. However, traditional air samplers require frequent opening and closing to disassemble the pipes and clean the internal dust, as well as periodically opening the sampler to clean the built-in filter. This has the following drawbacks: frequent switching of the air sampler can easily damage it, and the entire cleaning process is complex and inefficient. Utility Model Content

[0004] Therefore, it is necessary to provide a pipe structure that facilitates cleaning of the filter structure.

[0005] This application provides a pipe structure, including a housing, a pipe formed inside the housing, and a first end of the pipe for communication with an air collector; a sealing member disposed within the housing and arranged to be movable relative to the housing to open or block the pipe; and a filter structure detachably mounted on the housing, the filter structure including a filter element located within the pipe.

[0006] In one embodiment, the side wall of the housing has an installation port located between the first end of the pipe and the sealing member, and the filter structure is detachably installed at the installation port.

[0007] In one embodiment, the filter structure further includes an arc-shaped plate disposed on the outer peripheral wall of the filter element. The two side walls of the mounting port arranged at relative intervals along the circumference of the housing are defined as side wall portions. The side wall portions are in contact with the corresponding end walls of the arc-shaped plate. A sleeve that can move along the axial direction of the housing is sleeved on the housing. When the sleeve is in the state of being sleeved around the mounting port, the sleeve is threadedly connected to the outer side wall of the filter element.

[0008] In one embodiment, the housing is provided with a flushing channel communicating with the pipe, and the sealing element is located between the flushing channel and the filter element along the fluid flow direction in the pipe.

[0009] In one embodiment, the housing includes a main housing and a guide tube arranged coaxially. One end of the guide tube is connected to the main housing, and the other end of the guide tube is connected to the air collector. The pipe includes a first flow channel located inside the main housing and a second flow channel located inside the guide tube. The mounting port is located on the wall of the guide tube. The sealing member is disposed at a position corresponding to the first flow channel. The flushing channel is disposed on the main housing and communicates with the first flow channel.

[0010] In one embodiment, the main housing has a receiving cavity located around and communicating with the first flow channel. The sealing element is a sealing plate, which is connected to the housing via an adjusting rod. The sealing plate moves back and forth between a first position and a second position under the influence of the adjusting rod. When the sealing plate is in the first position, it is located within the receiving cavity, opening the first flow channel. When the sealing plate is in the second position, it is located within the first flow channel, blocking it. In one embodiment, the pipeline structure further includes a sealing structure for opening and closing the flushing channel, which is detachably installed on the flushing channel.

[0011] In one embodiment, the sealing structure includes a sealing head and a connecting cylinder rotatably connected to the sealing head. The connecting cylinder includes an annular wall sleeved around the periphery of the sealing head. A gap is formed between the annular wall and the connecting cylinder for the insertion of the wall of the flushing channel, and the annular wall is connected to the flushing channel.

[0012] In one embodiment, the connecting cylinder further includes an end plate connected to one end of the annular wall, the annular wall being at least partially located around the end plate, and the sealing head and the end plate being provided with a slidingly fitted annular groove and a sliding portion, the annular groove extending along the rotation direction of the connecting cylinder, and one of the annular groove and the sliding portion being provided on the sealing head, and the other of the annular groove and the sliding portion being provided on the end plate.

[0013] In one embodiment, a positioning groove and a positioning rib that interlock are provided between the outer peripheral wall of the plugging head and the peripheral wall of the flushing channel, and the positioning groove extends along the insertion direction of the plugging head.

[0014] Compared with the prior art, in the pipeline structure provided by this application, the filter structure is located outside the air collector and is independent of the air collector. When cleaning is required, only the filter structure needs to be removed from the housing without opening the air collector. This avoids the inconvenience and reduced service life of the air collector caused by the need to frequently open the air collector to clean the filter structure, and facilitates the cleaning of the filter structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the pipe structure and air collector assembled according to an embodiment of this application;

[0017] Figure 2 This is a perspective view of a pipe structure in an blocked state according to an embodiment of this application;

[0018] Figure 3 This is a three-dimensional exploded view of a pipe structure according to an embodiment of this application;

[0019] Figure 4 for Figure 3 A sectional view;

[0020] Figure 5 for Figure 3 A cross-sectional view from another angle;

[0021] Figure 6 for Figure 5 A magnified view of a section at point I;

[0022] Figure 7 for Figure 1 A sectional view.

[0023] Reference numerals: 1. Shell; 10. Pipe; 11. Main shell; 110. First flow channel; 1101. Slot; 111. Flushing channel; 1111. Positioning groove; 112. Receiving cavity; 12. Guide tube; 120. Second flow channel; 121. Mounting port; 1211. Side wall; 1212. Groove; 122. Second blocking rib; 2. Sealing plate; 21. Adjusting rod; 3. Filter structure; 31. Filter element 32. Arc plate; 321. End wall; 3211. Positioning protrusion; 322. First blocking rib; 4. Air collector; 5. Sleeve; 6. Sealing structure; 61. Sealing head; 611. Sliding part; 6111. Extension part; 6112. Insertion part; 62. Connecting cylinder; 621. Annular wall; 622. End plate; 6220. Annular groove; 6221. Protrusion; 6222. Annular flange; 63. Gap. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0030] like Figures 1-7 As shown, this application discloses a pipe structure. The pipe structure includes a housing 1, a sealing element, and a filter structure 3. A pipe 10 is formed inside the housing 1, and the first end of the pipe 10 is connected to an air collector 4. The sealing element is disposed within the housing 1 and arranged to move relative to the housing 1 to open or block the pipe 10. The filter structure 3 is detachably mounted on the housing 1 and includes a filter element 31 located within the pipe 10.

[0031] Understandably, the filter structure 3 is located outside the air collector 4 and is independent of the air collector 4. When cleaning is required, the filter structure 3 only needs to be removed from the housing 1 without opening the air collector 4. This avoids the inconvenience of frequently opening the air collector 4 to clean the filter structure 3 and reduces the service life of the air collector 4, making it easier to clean the filter structure 3.

[0032] Specifically, such as Figure 3 , Figure 4 and Figure 7 As shown, the side wall of the housing 1 has an installation port 121, located between the first end of the pipe 10 and the sealing member. The filter structure 3 is detachably installed at the installation port 121. Furthermore, the filter structure 3 also includes an arc-shaped plate 32 disposed on the outer peripheral wall of the filter element 31. The two side walls of the installation port 121, arranged relatively at intervals along the circumference of the guide pipe 12, are defined as side wall portions 1211. The side wall portions 1211 are aligned with the corresponding end walls 321 of the arc-shaped plate 32. A sleeve 5, capable of moving axially along the guide pipe 12, is fitted onto the guide pipe 12. When the sleeve 5 is fitted around the installation port 121, it is threadedly connected to the outer side wall of the filter element 31. Thus, the installation of the filter structure 3 and the housing 1 is achieved.

[0033] In addition, such as Figure 2 , Figure 3 and Figure 7As shown, the outer peripheral wall of the arc plate 32 and the outer peripheral wall of the guide tube 12 are respectively provided with a first blocking rib 322 and a second blocking rib 122 extending along the circumference of the guide tube 12. The first blocking rib 322 and the second blocking rib 122 correspond to each other and enclose to form an annulus. When the sleeve 5 and the filter element 31 are connected, the sleeve 5 abuts against the first blocking rib 322 and the second blocking rib 122, and a sealing gasket is provided between the abutting surfaces of the first blocking rib 322 and the second blocking rib 122 and the sleeve 5. The sealing gasket increases the sealing between the sleeve 5 and the first blocking rib 322 and the second blocking rib 122.

[0034] In addition, such as Figure 3 and Figure 7 As shown, the positioning protrusion 3211 and the corresponding end wall 321 of the arc-shaped plate 32 are matched and interlocked with each other. The positioning protrusion 3211 extends along the axial direction of the guide tube 12. One of the side wall portion 1211 and the corresponding end wall 321 of the arc-shaped plate 32 is provided with the positioning protrusion 3211, and the other of the side wall portion 1211 and the corresponding end wall 321 of the arc-shaped plate 32 is provided with the groove 1212. Schematic, in one embodiment, the positioning protrusion 3211 is provided on the side wall portion 1211, and the groove 1212 is formed on the end wall 321 of the arc-shaped plate 32. In another embodiment, the positioning protrusion 3211 is provided on the end wall 321 of the arc-shaped plate 32, and the groove 1212 is formed on the side wall portion 1211.

[0035] The insertion and engagement of the aforementioned protrusions and grooves 1212 allows the filter structure 3 to be reliably positioned at the mounting port 121.

[0036] Furthermore, such as Figure 3 and Figure 4 As shown, a flushing channel 111 connected to the pipe 10 is provided on the side wall of the housing 1. Along the fluid flow direction of the pipe 10, a sealing element is located between the flushing channel 111 and the filter element 31. Thus, the flushing channel 111 can be connected to an external water or air source to flush the pipe 10. The sealing element, located between the flushing channel 111 and the filter element 31, can be selected to block water or air flow according to actual needs, thereby preventing water or air from entering the filter element 31 and the air collector 4.

[0037] like Figure 3 , Figure 4 and Figure 6As shown, the above-mentioned pipeline structure also includes a sealing structure 6 for opening and closing the flushing channel 111. The sealing structure 6 is detachably installed on the flushing channel 111. Further, the sealing structure 6 includes a sealing head 61 and a connecting cylinder 62 rotatably connected to the sealing head 61. The connecting cylinder 62 includes an annular wall 621 sleeved around the periphery of the sealing head 61. A gap 63 is formed between the annular wall 621 and the connecting cylinder 62 for the insertion of the pipe wall of the flushing channel 111, and the annular wall 621 is connected to the flushing channel 111. Specifically, the annular wall 621 is threadedly connected to the outer peripheral wall of the flushing channel 111. Thus, the sealing structure 6 is fixed on the flushing channel 111.

[0038] The connecting cylinder 62 also includes an end plate 622 connected to one end of the annular wall 621. The annular wall 621 is at least partially located around the end plate 622. A sliding annular groove 6220 and a sliding portion 611 are fitted between the sealing head 61 and the end plate 622. The annular groove 6220 extends along the rotation direction of the connecting cylinder 62, and one of the annular groove 6220 and the sliding portion 611 is located on the sealing head 61, while the other is located on the end plate 622. Thus, the sliding fit between the annular groove 6220 and the sliding portion 611 allows for a rotational connection between the connecting cylinder 62 and the sealing head 61.

[0039] In one embodiment, an annular groove 6220 is formed on the outer end face of the plugging head 61, and a sliding part 611 is provided on the end face of the end plate 622 facing the plugging head 61.

[0040] In another embodiment, such as Figure 6 As shown, the annular groove 6220 is located on the side of the end plate 622 facing the sealing head 61, and the sliding part 611 is provided on the outer end face of the sealing head 61. Specifically, a protrusion 6221 is provided near the center of the end plate 622, and an annular flange 6222 is formed by laterally extending the periphery of the protrusion 6221. An annular groove 6220 is formed between the annular flange 6222 and the end plate 622. The sliding part 611 includes an extension 6111 extending along the axial direction of the sealing head 61 and an insertion part 6112 connected to the side wall of the extension 6111. The insertion part 6112 is located in the annular groove 6220 and slides in cooperation with the annular groove 6220.

[0041] Furthermore, there are at least two sliding parts 611, which are arranged at intervals along the circumference of the sealing head 61, thereby increasing the reliability of the rotation of the connecting cylinder 62 and the sealing head 61.

[0042] Furthermore, such as Figures 4-6As shown, a positioning groove 1111 and a positioning rib are matched and interlocked between the outer peripheral wall of the sealing head 61 and the peripheral wall of the flushing channel 111. The positioning groove 1111 extends along the insertion direction of the sealing head 61. Schematic, in one embodiment, the positioning groove 1111 is formed on the inner peripheral wall of the flushing channel 111, and the positioning rib (not shown) is formed on the outer peripheral wall of the sealing head 61. In another embodiment, the positioning groove 1111 is formed on the outer peripheral wall of the sealing head 61, and the positioning rib is formed on the inner peripheral wall of the flushing channel 111.

[0043] Thus, through the guiding cooperation of the positioning groove 1111 and the positioning rib, on the one hand, the sealing head 61 can be better guided when it is inserted into the flushing channel 111; on the other hand, the position of the sealing head 61 can be positioned.

[0044] The aforementioned positioning ribs and positioning grooves 1111 are in at least two sets, and are arranged at intervals along the rotation direction of the sealing head 61. Schematic, there may be two, three, or more sets of positioning ribs and positioning grooves 1111. In this embodiment, there are two sets of positioning ribs and positioning grooves 1111, and they are arranged at intervals along the vertical direction. This prevents the sealing head 61 from shifting or shaking, ensuring that the sealing head 61 is reliably installed in the flushing channel 111.

[0045] In addition, such as Figures 1-4 As shown, the housing 1 includes a main housing 11 and a guide pipe 12 arranged coaxially. One end of the guide pipe 12 is connected to the main housing 11, and the other end of the guide pipe 12 is connected to the air collector 4. The pipe 10 includes a first flow channel 110 located inside the main housing 11 and a second flow channel 120 located inside the guide pipe 12. The mounting port 121 is located on the pipe wall of the guide pipe 12, and the sealing element is set at the position corresponding to the first flow channel 110. The flushing channel 111 is provided on the main housing 11 and communicates with the first flow channel 110. Specifically, along the axial direction of the main housing 11, the flushing channel 111 is located near the center of the main housing 11.

[0046] like Figure 2 As shown, the main shell 11 is provided with a receiving cavity 112 located on the periphery of the first flow channel 110 and connected to the first flow channel 110. The sealing component is a sealing plate 2. The sealing plate 2 is connected to the shell 1 through an adjusting rod 21. The sealing plate 2 moves back and forth between a first position and a second position under the drive of the adjusting rod 21. When the sealing plate 2 is in the first position, the sealing plate 2 is located in the receiving cavity 112 and opens the first flow channel 110. When the sealing plate 2 is in the second position, the sealing plate 2 is located in the first flow channel 110 and blocks the first flow channel 110.

[0047] The first flow channel 110 has a slot 1101 on its wall for the corresponding edge of the sealing plate 2 to be inserted. The sealing plate 2 is provided with a sealing ring on the side away from the first end of the pipe 10. When the sealing plate 2 blocks the first flow channel 110, the outer periphery of the sealing ring is sealed to the inner periphery of the first flow channel 110. This increases the sealing between the sealing plate 2 and the first flow channel 110, prevents liquid from overflowing from the first flow channel 110, and reliably blocks the first flow channel 110.

[0048] like Figures 2-4 As shown, the adjusting rod 21 is arranged along the radial direction of the pipe 10, and a portion of the adjusting rod 21 extends through the main housing 11. The adjusting rod 21 is threadedly connected to the main housing 11, so rotating the adjusting rod 21 can drive the sealing plate 2 to move back and forth. In this embodiment, the adjusting rod 21 is arranged vertically. In other embodiments, the adjusting rod 21 may also be arranged at an angle to the vertical arrangement.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A pipe structure, characterized in that, include: The housing (1) has a pipe (10) formed inside it, and the first end of the pipe (10) is used to connect to the air collector (4); A sealing element is disposed within the housing (1) and is arranged to be movable relative to the housing (1) to open or block the pipe (10); A filter structure (3) is detachably mounted on the housing (1), the filter structure (3) including a filter element (31) that can be located within the pipe (10).

2. The pipe structure according to claim 1, characterized in that, The side wall of the housing (1) is provided with an installation port (121), which is located between the first end of the pipe (10) and the sealing member. The filter structure (3) is detachably installed at the installation port (121).

3. The pipe structure according to claim 2, characterized in that, The filter structure (3) further includes an arc-shaped plate (32) disposed on the outer peripheral wall of the filter element (31). The two side walls of the mounting port (121) arranged at relative intervals along the circumference of the housing (1) are defined as side wall portions (1211). The side wall portions (1211) are in contact with the corresponding end wall (321) of the arc-shaped plate (32). A sleeve (5) that can move along the axial direction of the housing (1) is sleeved on the housing (1). When the sleeve (5) is in the state of being sleeved around the mounting port (121), the sleeve (5) is threadedly connected to the outer side wall of the filter element (31).

4. The pipe structure according to claim 2, characterized in that, The housing (1) is provided with a flushing channel (111) connected to the pipe (10). Along the fluid flow direction in the pipe (10), the sealing element is located between the flushing channel (111) and the filter element (31).

5. The pipe structure according to claim 4, characterized in that, The housing (1) includes a main housing (11) and a guide tube (12) arranged coaxially. One end of the guide tube (12) is connected to the main housing (11), and the other end of the guide tube (12) is connected to the air collector (4). The pipe (10) includes a first flow channel (110) located in the main housing (11) and a second flow channel (120) located in the guide tube (12). The mounting port (121) is located on the pipe wall of the guide tube (12). The sealing member is set at the position corresponding to the first flow channel (110). The flushing channel (111) is set on the main housing (11) and communicates with the first flow channel (110).

6. The pipe structure according to claim 5, characterized in that, The main shell (11) is provided with a receiving cavity (112) located around the first flow channel (110) and connected to the first flow channel (110). The sealing member is a sealing plate (2). The sealing plate (2) is connected to the shell (1) through an adjusting rod (21). The sealing plate (2) moves back and forth between a first position and a second position under the drive of the adjusting rod (21). When the sealing plate (2) is in the first position, the sealing plate (2) is located in the receiving cavity (112) and opens the first flow channel (110). When the sealing plate (2) is in the second position, the sealing plate (2) is located in the first flow channel (110) and blocks the first flow channel (110).

7. The pipe structure according to claim 4, characterized in that, It also includes a sealing structure (6) for opening and closing the flushing channel (111), the sealing structure (6) being detachably installed on the flushing channel (111).

8. The pipe structure according to claim 7, characterized in that, The sealing structure (6) includes a sealing head (61) and a connecting cylinder (62) rotatably connected to the sealing head (61). The connecting cylinder (62) includes an annular wall (621) sleeved around the sealing head (61). A gap (63) is formed between the annular wall (621) and the connecting cylinder (62) for the wall of the flushing channel (111) to be inserted. The annular wall (621) is connected to the flushing channel (111).

9. The pipe structure according to claim 8, characterized in that, The connecting cylinder (62) further includes an end plate (622) connected to one end of the annular wall (621). The annular wall (621) is at least partially located around the end plate (622). The sealing head (61) and the end plate (622) are matched with a slidingly fitted annular groove (6220) and a sliding part (611). The annular groove (6220) extends along the rotation direction of the connecting cylinder (62). One of the annular groove (6220) and the sliding part (611) is provided on the sealing head (61), and the other of the annular groove (6220) and the sliding part (611) is provided on the end plate (622).

10. The pipe structure according to claim 8, characterized in that, The outer peripheral wall of the plugging head (61) and the peripheral wall of the flushing channel (111) are provided with a positioning groove (1111) and a positioning rib that are matched and interlocked. The positioning groove (1111) extends along the insertion direction of the plugging head (61).

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