Centrifugal fan convenient to position

Abstract

The utility model relates to the technical field of centrifugal ventilators, and discloses a centrifugal ventilator convenient to position, which comprises a base, the top of the base is fixedly connected with a ventilator shell, the front side of the ventilator shell is fixedly connected with an air inlet pipe, and the right side of the ventilator shell is fixedly connected with an air outlet pipe. A centrifugal fan body is arranged in the ventilator shell, an air inlet filtering mechanism is arranged in the air inlet pipe, a positioning and mounting mechanism is arranged in the base, in the using process, an impeller rotates to enable a connecting block to rotate, inlet air is conveniently filtered, meanwhile, a filtering plate is cleaned, and through rotation of a rotating plate, the rotating plate is driven to rotate to drive the centrifugal fan body to rotate. And a first rotating block is driven to move, sealing is achieved while impurities and the like scraped by a scraping plate are guided into a collecting box, later collection of workers is facilitated, the positions of two mounting blocks are conveniently adjusted through rotation of a bidirectional threaded rod and cooperation with a limiting rod, and therefore positioning use in different mounting environments is met.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan convenient for positioning. Background Technique

[0002] A centrifugal fan mainly consists of an impeller, a casing, a coupling, and a shaft. The impeller is the main working component that generates wind pressure and transmits energy; the casing is mainly used to introduce and discharge gas, and at the same time convert part of the kinetic energy of the gas into pressure energy.

[0003] According to a centrifugal fan convenient for positioning (the authorized announcement number is: CN 220769734U) disclosed on the patent network, it is described that "the utility model discloses a centrifugal fan convenient for positioning. The utility model includes a fan casing, one side of the fan casing is connected with a ventilation port, a shielding shed is arranged above the ventilation port, a plurality of support rods are arranged under the shielding shed and fixedly connected to the fan casing, a notch is arranged on one side of the fan casing, a movable page is arranged on one side of the notch, a rear cover plate is connected to the movable page, a plurality of air inlets with different shapes are arranged on the rear cover plate, and a driving device is arranged on one side of the rear cover plate. The utility model detects and locates through an alarm device. The alarm device includes an induction belt and an alarm. A plurality of induction belts are fixedly arranged in the limit groove in an orderly manner, and the alarm is fixedly connected to one side of the fixed base. When the limit bottom plate deflects in the limit groove, different degrees of deflection of the induction belt will activate different alarm modes of the alarm, so as to realize the positioning and monitoring of the centrifugal fan".

[0004] Regarding the above description content, the applicant believes that there are the following problems:

[0005] During the use of this utility model, through the rotation of the movable page, a plurality of air inlets with different shapes are arranged on the rear cover plate, a driving device is arranged on one side of the rear cover plate, and a fixed base is connected below the fan casing. The fixed base can stabilize the centrifugal fan. A limit mechanism is arranged between the fixed base and the fan casing. During actual use, since the installation position of the base of this device is fixed, it is impossible to well meet the adjustment and positioning installation in different installation environments, resulting in certain limitations in use. At the same time, the air inlet of this device is always open. After the connection is completed, it is easy to inhale impurities and cause blockage. Therefore, it is necessary to improve a centrifugal fan convenient for positioning to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a centrifugal fan convenient for positioning to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solution: a centrifugal fan convenient for positioning, including a base, a ventilation fan housing is fixedly connected to the top of the base, an air inlet pipe is fixedly connected to the front of the ventilation fan housing, an air outlet pipe is fixedly connected to the right side of the ventilation fan housing, a centrifugal fan body is arranged inside the ventilation fan housing, an air inlet filtering mechanism is arranged inside the air inlet pipe, and a positioning and installation mechanism is arranged inside the base;

[0008] The air inlet filtering mechanism includes a filtering component and a collecting component. The filtering component is arranged inside the air inlet pipe, and the collecting component is arranged at the bottom of the air inlet pipe.

[0009] Preferably, the air inlet filtering mechanism includes a support frame fixedly connected inside the air inlet pipe. An impeller is rotatably connected inside the support frame. A connecting block is fixedly connected to the front of the impeller. A filter plate is fixedly connected inside the air inlet pipe. A guide rail is fixedly connected to the back of the filter plate. A limiting plate is slidably connected inside the guide rail. A scraping plate is fixedly connected to the front of the limiting plate, which is convenient for filtering the inlet air and cleaning the filter plate at the same time, and avoiding blockage.

[0010] Preferably, the scraping plate is slidably connected to the filter plate, the scraping plate contacts the filter plate, grooves are formed at the corresponding positions of the limiting plate and the connecting block, and the connecting block contacts the limiting plate, which is convenient for a more stable cleaning process.

[0011] Preferably, the collecting component includes a connecting box fixedly connected to the bottom of the air inlet pipe. A collecting box is slidably connected inside the connecting box. A baffle is fixedly connected inside the connecting box. A rotating plate is rotatably connected inside the connecting box. A first rotating block is rotatably connected inside the rotating plate. A spring is fixedly connected to the front of the first rotating block. A second rotating block is fixedly connected to the front of the spring, which is convenient for guiding the impurities scraped by the scraping plate into the collecting box and realizing sealing at the same time, so as to facilitate the later collection by the staff.

[0012] Preferably, grooves are formed at the corresponding positions of the connecting box and the second rotating block, and the second rotating block is rotatably connected inside the grooves, and the scraping plate contacts the rotating plate, which is convenient for a more stable collection process.

[0013] Preferably, the positioning and installation mechanism includes a bidirectional threaded rod rotatably connected inside the base. A limiting rod is fixedly connected inside the base. A movable plate is slidably connected to the outside of the limiting rod. An installation block is fixedly connected to the bottom of the movable plate, which is convenient for adjusting the positions of the two installation blocks, so as to meet different installation environments for positioning use, and thus avoid the occurrence of additional drilling and other situations.

[0014] Preferably, the movable plate is threadedly connected to the bidirectional threaded rod. A groove is provided at the corresponding position of the base and the movable plate, and the movable plate is slidably connected inside the groove, which facilitates a more stable positioning and installation process.

[0015] Compared with the prior art, the present utility model provides a centrifugal ventilator facilitating positioning, having the following beneficial effects:

[0016] 1. For the centrifugal ventilator facilitating positioning, during use, through the rotation of the impeller provided, the connecting block rotates, which facilitates filtering the intake air and cleaning the filter plate at the same time, avoiding blockage. Through the rotation of the rotating plate, the first rotating block moves, which facilitates guiding the impurities scraped by the scraper into the collection box and achieving sealing at the same time, thus facilitating the later collection by the staff.

[0017] 2. For the centrifugal ventilator facilitating positioning, during use, through the rotation of the bidirectional threaded rod provided, cooperating with the limiting rod, it is convenient to adjust the positions of the two mounting blocks, so as to meet different installation environments for positioning use, thereby avoiding the occurrence of additional hole punching and other situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiment descriptions. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 It is a front structure schematic diagram of the present utility model;

[0020] Figure 2 It is a sectional structure schematic diagram of the present utility model;

[0021] Figure 3 It is a structure schematic diagram of the filtering component of the present utility model;

[0022] Figure 4 It is an internal structure schematic diagram of the filtering component of the present utility model;

[0023] Figure 5 It is a structure schematic diagram of the collection component of the present utility model;

[0024] Figure 6 It is a structure schematic diagram of the positioning and installation mechanism of the present utility model.

[0025] In the figure: 1, base; 2, ventilator housing; 3, intake pipe; 4, exhaust pipe; 5, centrifugal fan body; 6, intake air filtering mechanism; 61, filtering component; 611, support frame; 612, impeller; 613, filter plate; 614, guide rail; 615, connecting block; 616, limiting plate; 617, scraper; 62, collection component; 621, connecting box; 622, collection box; 623, baffle plate; 624, rotating plate; 625, first rotating block; 626, spring; 627, second rotating block; 7, positioning and installation mechanism; 71, bidirectional threaded rod; 72, limiting rod; 73, movable plate; 74, mounting block. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] Embodiment 1:

[0029] Please refer to Figures 1-5 , the present invention provides a technical solution: a centrifugal ventilator convenient for positioning, including a base 1, a ventilator housing 2 is fixedly connected to the top of the base 1, an intake pipe 3 is fixedly connected to the front of the ventilator housing 2, an exhaust pipe 4 is fixedly connected to the right side of the ventilator housing 2, a centrifugal fan body 5 is arranged inside the ventilator housing 2, an intake air filtering mechanism 6 is arranged inside the intake pipe 3, and a positioning and installation mechanism 7 is arranged inside the base 1;

[0030] The intake air filtering mechanism 6 includes a filtering component 61 and a collection component 62. The filtering component 61 is arranged inside the intake pipe 3, and the collection component 62 is arranged at the bottom of the intake pipe 3.

[0031] Further, the intake air filtering mechanism 6 includes a support frame 611 which is fixedly connected inside the intake pipe 3. An impeller 612 is rotatably connected inside the support frame 611. A connecting block 615 is fixedly connected to the front of the impeller 612. A filter plate 613 is fixedly connected inside the intake pipe 3. A guide rail 614 is fixedly connected to the back of the filter plate 613. A limiting plate 616 is slidably connected inside the guide rail 614. A scraping plate 617 is fixedly connected to the front of the limiting plate 616, which facilitates filtering the intake air and cleaning the filter plate 613 at the same time, and avoids blockage.

[0032] Further, the scraping plate 617 is slidably connected to the filter plate 613, the scraping plate 617 contacts the filter plate 613, grooves are formed at corresponding positions of the limiting plate 616 and the connecting block 615, and the connecting block 615 contacts the limiting plate 616, which facilitates a more stable cleaning process.

[0033] Further, the collection assembly 62 includes a connection box 621 which is fixedly connected to the bottom of the intake pipe 3. A collection box 622 is slidably connected inside the connection box 621. A baffle 623 is fixedly connected inside the connection box 621. A rotating plate 624 is rotatably connected inside the connection box 621. A first rotating block 625 is rotatably connected inside the rotating plate 624. A spring 626 is fixedly connected to the front of the first rotating block 625. A second rotating block 627 is fixedly connected to the front of the spring 626, which facilitates guiding the impurities scraped by the scraping plate 617 into the collection box 622 and achieving sealing at the same time, thus facilitating the later collection by the staff.

[0034] Further, grooves are formed at corresponding positions of the connection box 621 and the second rotating block 627, and the second rotating block 627 is rotatably connected inside the grooves. The scraping plate 617 contacts the rotating plate 624, which facilitates a more stable collection process.

[0035] Embodiment 2:

[0036] Please refer to Figure 6 and further obtain in combination with Embodiment 1 that the positioning and installation mechanism 7 includes a bidirectional threaded rod 71 which is rotatably connected inside the base 1. A limiting rod 72 is fixedly connected inside the base 1. A movable plate 73 is slidably connected to the outside of the limiting rod 72. An installation block 74 is fixedly connected to the bottom of the movable plate 73, which facilitates adjusting the positions of the two installation blocks 74, so as to meet different installation environments for positioning use, and thus avoid situations such as additional drilling.

[0037] Further, the movable plate 73 is threadedly connected to the bidirectional threaded rod 71. Grooves are formed at corresponding positions of the base 1 and the movable plate 73, and the movable plate 73 is slidably connected inside the grooves, which facilitates a more stable positioning and installation process.

[0038] In the actual operation process, when this device is in use, first, the staff rotates the bidirectional threaded rod 71. By rotating the set bidirectional threaded rod 71 and cooperating with the limiting rod 72, the movable plate 73 moves, and thus the mounting block 74 moves. By operating the centrifugal fan body 5 provided, and cooperating with the air inlet pipe 3 and the filter plate 613, the usage process begins. By operating the centrifugal fan body 5 provided, under the action of the air flow, the impeller 612 rotates. By rotating the set impeller 612, the connecting block 615 rotates. Cooperating with the guide rail 614, the limiting plate 616 moves, and thus the scraper 617 reciprocates up and down. By moving the set scraper 617 until it contacts the rotating plate 624, the rotating plate 624 rotates. By rotating the set rotating plate 624, the first rotating block 625 moves. Cooperating with the spring 626, the second rotating block 627 rotates. Cooperating with the baffle 623, the impurities scraped off are thus pushed into the inside of the collection box 622.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A centrifugal fan that is easy to position, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a fan housing (2), the front of the fan housing (2) is fixedly connected to an air inlet pipe (3), the right side of the fan housing (2) is fixedly connected to an air outlet pipe (4), a centrifugal fan body (5) is arranged inside the fan housing (2), an air inlet filter mechanism (6) is arranged inside the air inlet pipe (3), and a positioning and mounting mechanism (7) is arranged inside the base (1); The air intake filter mechanism (6) comprises a filter assembly (61) and a collection assembly (62); the filter assembly (61) is arranged inside the air intake pipe (3), and the collection assembly (62) is arranged at the bottom of the air intake pipe (3).

2. A centrifugal fan that is easy to position according to claim 1, characterized in that: The air intake filter mechanism (6) comprises a support frame (611), the support frame (611) is fixedly connected to the inside of the air intake pipe (3), an impeller (612) is rotatably connected to the inside of the support frame (611), a connecting block (615) is fixedly connected to the front of the impeller (612), a filter plate (613) is fixedly connected to the inside of the air intake pipe (3), a guide rail (614) is fixedly connected to the back of the filter plate (613), a limit plate (616) is slidably connected to the inside of the guide rail (614), and a scraper (617) is fixedly connected to the front of the limit plate (616).

3. A centrifugal fan that is easy to position according to claim 2, characterized in that: The scraper (617) is slidably connected to the filter plate (613), the scraper (617) is in contact with the filter plate (613), grooves are provided at corresponding positions of the limiting plate (616) and the connecting block (615), and the connecting block (615) is in contact with the limiting plate (616).

4. A centrifugal fan that is easy to position according to claim 2, characterized in that: The collecting assembly (62) comprises a connecting box (621), wherein the connecting box (621) is fixedly connected to the bottom of the air intake pipe (3), a collecting box (622) is slidably connected inside the connecting box (621), a baffle (623) is fixedly connected inside the connecting box (621), a rotating plate (624) is rotatably connected inside the connecting box (621), a first rotating block (625) is rotatably connected inside the rotating plate (624), a spring (626) is fixedly connected to the front of the first rotating block (625), and a second rotating block (627) is fixedly connected to the front of the spring (626).

5. A centrifugal fan that is easy to position according to claim 4, characterized in that: The connection box (621) and the second rotating block (627) are provided with grooves at positions corresponding to each other, and the second rotating block (627) is rotatably connected inside the groove, and the scraper (617) is in contact with the rotating plate (624).

6. The centrifugal fan that is easy to position according to claim 1, characterized in that: The positioning and mounting mechanism (7) comprises a bidirectional threaded rod (71), the bidirectional threaded rod (71) is rotatably connected to the inside of the base (1), a limiting rod (72) is fixedly connected to the inside of the base (1), a movable plate (73) is slidably connected to the outside of the limiting rod (72), and a mounting block (74) is fixedly connected to the bottom of the movable plate (73).

7. A centrifugal fan that is easy to position according to claim 6, characterized in that: The movable plate (73) is threadedly connected to the bidirectional threaded rod (71); grooves are provided at corresponding positions of the base (1) and the movable plate (73), and the movable plate (73) is slidably connected inside the groove.

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