Centrifugal pipeline fan convenient for switching pipelines

Abstract

The utility model belongs to the technical field of pipeline fans, particularly relates to a centrifugal pipeline fan convenient for switching pipelines, and aims to solve the problem that the pipelines are difficult to switch accurately due to the fact that an air outlet pipe is controlled to rotate by 180 degrees to switch the pipelines by rotating a rotating rod in the conventional equipment, but no positioning structure is arranged. A displacement structure is arranged on one side of the interior of the placing frame, an air draft structure is arranged at the top of the displacement structure, two pipelines are inserted into the air draft structure through a butt joint structure, the butt joint structure comprises positioning grooves which are formed in the ends, close to the air draft structure, of the two pipelines and close to one another, and two clamping sliding grooves are symmetrically formed in each pipeline. The positioning grooves are formed in the ends, close to each other, of the two pipelines, so that the butt joint on the exhaust pipe is positioned, and the problem that butt joint dislocation occurs when the pipelines are switched is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline fans, and in particular to a centrifugal pipeline fan which is convenient for switching pipelines. Background Art

[0002] Duct fans are ventilation equipment used in industrial plants, buildings, indoor ventilation or duct pressurization. Duct fans are mainly composed of a main casing, a fan body inside the main casing, and air inlet and outlet ducts relatively distributed on both sides of the main casing.

[0003] The patent with the publication number CN220059986U is searched and relates to a centrifugal duct fan with switchable ducts; it includes a duct body, an outer shell, a plurality of second ducts, a first duct, a rotating rod, a handle and a driving mechanism, the driving mechanism includes a sliding plate, a mounting plate, a rotating ring, a threaded rod, a bearing and a rotating assembly. When the rotating rod is rotated so that the end of the first duct away from the air outlet duct is switched to the corresponding second duct, the rotating assembly is started, and the rotating ring is driven to rotate on the mounting plate through the driven gear. Due to the internal

[0004] A threaded rod is connected with the thread, so that the threaded rod is screwed into the inside of the rotating ring, and then drives the sliding plate to slide on the sliding groove, so that the end of the inner tube away from the pipeline body is inserted into the inside of the second pipeline, and the sealing ring fits with the inner wall of the second pipeline, so that the sealing of the connection between the first pipeline and the second pipeline is stronger.

[0005] The existing equipment controls the air outlet duct to rotate 180 degrees by rotating the rotating rod to switch the duct, but no positioning structure is set, which makes it difficult to accurately switch the duct. Therefore, we propose a centrifugal duct fan that is easy to switch the duct to solve the above problem. Utility Model Content

[0006] The utility model aims to solve the disadvantage of inaccurate docking and proposes a centrifugal duct fan which is convenient for switching ducts.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a centrifugal duct fan that is convenient for switching ducts, comprising a placement frame, a displacement structure is arranged on one side of the placement frame, an exhaust structure is arranged on the top of the displacement structure, and the exhaust structure is connected with two ducts through a docking structure;

[0008] The docking structure includes positioning grooves opened at one end of the two pipes close to the exhaust structure and close to each other. Two clamping grooves are symmetrically opened inside the two pipes. Clamping springs are arranged at the bottom ends of the four clamping grooves. Clamping slide blocks are installed at the other ends of two of the four clamping springs located inside the same pipe. A docking slide tube is injection-molded between two of the four clamping slide blocks located inside the same pipe.

[0009] Preferably, both ends of the two butt sliding pipes are sleeved with sealing rings.

[0010] Preferably, the two pipes are symmetrically installed on one end of the placement frame by plugging.

[0011] Preferably, the displacement structure comprises a displacement slot opened at one end inside the placement frame, a displacement slider is slidably mounted on the top of the displacement slot, and a mounting plate is mounted on the top of the displacement slider via bolts.

[0012] Preferably, a screw rod is inserted into the interior of the displacement slider through a thread, one end of the screw rod is rotatably installed on one end inside the placement frame, and the other end of the screw rod passes through the placement frame and is installed with a control handle through a bolt.

[0013] Preferably, a fan body is mounted on the top of the mounting plate by bolts, an air inlet pipe is welded to one end of the fan body, and an air exhaust pipe is welded to the front end of the fan body.

[0014] Preferably, a butt joint is welded on the front side of the exhaust duct, and the butt joint is a truncated cone-shaped pipe fitting.

[0015] In the utility model, a centrifugal duct fan that is convenient for switching ducts is described:

[0016] 1. The utility model provides positioning grooves at one end of the two pipes and on one side close to each other, so as to locate the butt joints on the exhaust pipes and avoid the problem of butt misalignment when switching pipes;

[0017] 2. The utility model controls the clamping slide block to slide along the clamping slide groove through two clamping springs, so as to drive the sealing ring on the docking slide pipe to coaxially cling to the front end of the docking joint on the exhaust pipe, thereby achieving the purpose of sealing connection and avoiding the problem of air leakage after switching the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a centrifugal duct fan that is convenient for switching ducts proposed by the utility model;

[0019] Figure 2This is a schematic structural diagram of the internal part of a centrifugal duct fan that is convenient for switching ducts proposed by the utility model;

[0020] Figure 3 This is a schematic structural diagram of a pipeline portion of a centrifugal pipeline fan that is convenient for switching pipelines proposed by the utility model;

[0021] Figure 4 This is a structural schematic diagram of part A of a centrifugal duct fan that is convenient for switching ducts proposed by the utility model;

[0022] Figure 5 This is a structural schematic diagram of the B part of a centrifugal duct fan that is convenient for switching ducts proposed by the utility model;

[0023] Figure 6 This is a schematic structural diagram of the C portion of a centrifugal duct fan for easy duct switching proposed by the utility model.

[0024] In the figure: 1. placement frame; 2. displacement structure; 201. displacement slide; 202. displacement slider; 203. screw rod; 204. mounting plate; 205. control handle; 3. exhaust structure; 301. fan body; 302. air inlet pipe; 303. exhaust pipe; 304. docking joint; 4. pipeline; 5. docking structure; 501. positioning groove; 502. clamping slide; 503. clamping spring; 504. clamping slider; 505. docking slide pipe; 506. sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-6 A centrifugal duct fan for convenient duct switching includes a placement frame 1, a displacement structure 2 is arranged on one side of the placement frame 1, an exhaust structure 3 is arranged on the top of the displacement structure 2, and the exhaust structure 3 is connected with two ducts 4 through a docking structure 5;

[0027] The docking structure 5 includes a positioning groove 501 opened at one end of the two pipes 4 close to the exhaust structure 3 and close to each other. Two clamping grooves 502 are symmetrically opened inside the two pipes 4. The inner bottom ends of the four clamping grooves 502 are each provided with a clamping spring 503. The other ends of two of the four clamping springs 503 located inside the same pipe 4 are each installed with a clamping slider 504. A docking slide tube 505 is injection-molded between two of the four clamping sliders 504 located inside the same pipe 4.

[0028] In this embodiment, both ends of the two butting sliding pipes 505 are sleeved with sealing rings 506 .

[0029] By adopting the above solution, sealing rings 506 are sleeved on both ends of the two docking sliding tubes 505 to ensure the sealing between the two docking sliding tubes 505 and the two pipes 4, and the sealing between the two docking sliding tubes 505 and the docking joints 304, thereby avoiding air leakage.

[0030] In this embodiment, the two pipes 4 are symmetrically installed at one end of the placement frame 1 by plugging.

[0031] By adopting the above solution, the two pipes 4 are symmetrically installed on one end of the placement frame 1 by plugging, so that the two pipes 4 can be stably installed to avoid the problem of connection misalignment.

[0032] In this embodiment, the displacement structure 2 includes a displacement slot 201 opened at one end inside the placement frame 1, a displacement slider 202 is slidably installed on the top of the displacement slot 201, and a mounting plate 204 is installed on the top of the displacement slider 202 by bolts.

[0033] By adopting the above solution, a displacement slider 202 is slidably installed on the top of the displacement slot 201, and a mounting plate 204 is installed on the top of the displacement slider 202 by bolts, so that the displacement slot 201 and the displacement slider 202 limit the displacement path of the mounting plate 204.

[0034] In this embodiment, a screw rod 203 is inserted into the displacement slider 202 through a thread, one end of the screw rod 203 is rotatably installed inside one end of the placement frame 1, and the other end of the screw rod 203 penetrates the placement frame 1 and is installed with a control handle 205 through a bolt.

[0035] By adopting the above scheme, a screw rod 203 is inserted through a thread inside the displacement slider 202, one end of the screw rod 203 is rotatably installed on one end inside the placement frame 1, and the other end of the screw rod 203 penetrates the placement frame 1 and is installed with a control handle 205 by bolts, so that the screw rod 203 can be controlled to rotate synchronously by rotating the control handle 205, so as to control the position of the exhaust duct 303 on the fan body 301.

[0036] In this embodiment, a fan body 301 is mounted on the top of the mounting plate 204 by means of bolts, an air inlet pipe 302 is welded to one end of the fan body 301 , and an air exhaust pipe 303 is welded to the front end of the fan body 301 .

[0037] By adopting the above scheme, a fan body 301 is installed on the top of the mounting plate 204 by bolts, an air inlet pipe 302 is welded to one end of the fan body 301, and an exhaust pipe 303 is welded to the front end of the fan body 301, so that air intake is achieved through the air inlet pipe 302 and air exhaust is achieved through the exhaust pipe 303.

[0038] In this embodiment, a butt joint 304 is welded on the front side of the exhaust pipe 303, and the butt joint 304 is a truncated cone-shaped pipe fitting.

[0039] By adopting the above scheme, a docking joint 304 is welded on the front side of the exhaust duct 303. The docking joint 304 is a truncated cone-shaped pipe fitting, which is convenient for pressing the docking slide pipe 505 through the inclined surface of the circumferential side of the docking joint 304, ensuring that it can be smoothly moved to one end of the docking slide pipe 505 to achieve coaxial plug-in.

[0040] In the utility model, when in use, the screw rod 203 is controlled to rotate synchronously by rotating the control handle 205, and the displacement slider 202 can slide arbitrarily along the displacement slide groove 201, so as to control the butt joint 304 with a bevel on the upper side of the exhaust duct 303 to squeeze the butt joint slide tube 505, thereby suppressing the two clamping springs 503. When one side of the butt joint 304 is tightly against one side of the positioning groove 501, the purpose of determining the position is achieved. The two clamping springs 503 will control the butt joint slide tube 505 to move along the clamping slide groove 502 due to the reaction force, so that the sealing ring 506 is tightly against the butt joint 304, thereby achieving the purpose of sealing connection.

[0041] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A centrifugal duct fan for convenient duct switching, comprising a placement frame (1), characterized in that: A displacement structure (2) is provided on one side of the interior of the placement frame (1), an exhaust structure (3) is provided on the top of the displacement structure (2), and the exhaust structure (3) is connected to two pipes (4) via a docking structure (5); The docking structure (5) comprises a positioning groove (501) which is opened at one end of the two pipes (4) close to the exhaust structure (3) and close to one side of each other, two clamping grooves (502) are symmetrically opened inside the two pipes (4), and the inner bottom ends of the four clamping grooves (502) are provided with clamping springs (503), and the other ends of two of the clamping springs (503) located inside the same pipe (4) are installed with clamping sliders (504), and a docking slide tube (505) is injection-molded between two of the four clamping sliders (504) located inside the same pipe (4).

2. A centrifugal duct fan for convenient duct switching according to claim 1, characterized in that: Both ends of the two butt-jointed sliding pipes (505) are sleeved with sealing rings (506).

3. The centrifugal duct fan for convenient duct switching according to claim 1, characterized in that: The two pipes (4) are symmetrically installed on one end of the placement frame (1) by plugging.

4. The centrifugal duct fan for convenient duct switching according to claim 1, characterized in that: The displacement structure (2) comprises a displacement slide groove (201) opened at one end inside the placement frame (1), a displacement slider (202) is slidably mounted on the top of the displacement slide groove (201), and a mounting plate (204) is mounted on the top of the displacement slider (202) via bolts.

5. The centrifugal duct fan for convenient duct switching according to claim 4, characterized in that: A screw rod (203) is inserted into the interior of the displacement slider (202) through a thread, one end of the screw rod (203) is rotatably mounted on one end of the interior of the placement frame (1), and the other end of the screw rod (203) penetrates the placement frame (1) and is mounted with a control handle (205) through a bolt.

6. The centrifugal duct fan for convenient duct switching according to claim 4, characterized in that: A fan body (301) is mounted on the top of the mounting plate (204) by means of bolts, an air inlet pipe (302) is welded to one end of the fan body (301), and an air exhaust pipe (303) is welded to the front end of the fan body (301).

7. The centrifugal duct fan for convenient duct switching according to claim 6, characterized in that: A butt joint (304) is welded on the front side of the exhaust pipe (303), and the butt joint (304) is a truncated cone-shaped pipe fitting.

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