Shell-free fan and lampblack purification all-in-one machine

Abstract

The utility model relates to the technical field of oil smoke purification machines, in particular to a shell-free fan and an oil smoke purification all-in-one machine, which comprise a fan body, an air inlet pipe is fixedly arranged at an air inlet of the fan body, an oil smoke pipe is arranged below the fan body, the air inlet pipe and the oil smoke pipe are annular, the air inlet pipe is sleeved outside the oil smoke pipe, and the oil smoke pipe is sleeved outside the oil smoke pipe. The air inlet pipe does not make contact with the oil smoke pipe, the outer side of the air inlet pipe is sleeved with a connecting ring, the air inlet pipe and the connecting ring are rotationally connected through a connecting bearing, and the connecting ring and the oil smoke pipe are detachably connected. The air inlet pipe is sleeved with the connecting ring, the air inlet pipe and the connecting ring are rotationally connected through the connecting bearing, the connecting ring is fixedly connected to the oil smoke pipe through the connecting assembly, when the fan rotates, the connecting bearing can ensure the sealing performance between the fan and the connecting ring, contact between the air inlet pipe and the oil smoke pipe is avoided, and the service life of the air inlet pipe and the oil smoke pipe is prolonged. Friction force is reduced, and the suction effect of the draught fan on oil smoke is better.

Description

Technical Field

[0001] This utility model relates to the field of oil fume purification technology, specifically to a shell-less fan and an integrated oil fume purification machine. Background Technology

[0002] With the acceleration of urbanization and the development of the catering industry, the problem of oil fume pollution has become increasingly serious, posing a threat to the atmospheric environment and human health. To address this issue, integrated oil fume purification machines have emerged as a highly efficient and convenient oil fume treatment device.

[0003] Existing integrated fume purification units require the fan outlet to be aligned with the fume inlet during installation to ensure that the fumes can be drawn into the purification mechanism. However, during operation, due to the high-speed rotation of the fan, wear occurs between the fan outlet and the fume inlet over time. This can lead to uneven contact surfaces, increasing friction, and excessive wear can affect the seal, ultimately weakening the fan's fume extraction effect and impacting the unit's operation. Therefore, we propose a casing-less fan and integrated fume purification unit to effectively solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a casing-less fan and an integrated oil fume purification machine to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a shellless fan, including a fan body, an air inlet pipe fixedly provided at the air inlet of the fan body, an oil fume pipe provided below the fan body, both the air inlet pipe and the oil fume pipe are annular, the air inlet pipe is sleeved on the outside of the oil fume pipe, the air inlet pipe and the oil fume pipe are not in contact, a connecting ring is sleeved on the outside of the air inlet pipe, the air inlet pipe and the connecting ring are rotatably connected by a connecting bearing, and the connecting ring and the oil fume pipe are detachably connected.

[0006] Optionally, the connecting ring is annular, and the inner ring surface of the connecting ring is detachably connected to the outer ring surface of the fume pipe through two sets of connecting components, and the two sets of connecting components are arranged symmetrically from left to right.

[0007] Optionally, the connecting assembly includes a limiting block, which is slidably connected to the inner side of the connecting ring along the radial direction of the connecting ring, and the limiting block is detachably connected to the outer side of the fume duct.

[0008] Optionally, the connecting assembly further includes a fixing ring, which is annular and fixedly connected to the outer ring surface of the fume duct. The outer ring surface of the fixing ring has two limiting grooves, which are respectively used for the two limiting blocks to be embedded.

[0009] Optionally, the side of the limiting block facing the fixed ring is an inclined surface, and a sliding rod is fixedly provided on the side of the limiting block facing the inner ring surface of the connecting ring. One end of the sliding rod extends to the outside of the connecting ring, and the sliding rod and the connecting ring are slidably connected. A spring is sleeved on the outside of the sliding rod, and the left and right ends of the spring abut against the inner ring surface of the connecting ring and the side wall of the limiting block, respectively. In its natural state, the spring is in a compressed state.

[0010] This utility model also proposes an integrated oil fume purification machine, including the aforementioned shellless fan and an oil fume purification machine body. The fan body, air inlet pipe, and oil fume pipe are all disposed inside the oil fume purification machine body. The fan body is fixedly connected to the inner top wall of the oil fume purification machine body, and the oil fume pipe is fixedly disposed at the top of the oil fume chamber inside the oil fume purification machine body. The air inlet of the fan body is connected to the oil fume chamber of the oil fume purification machine body.

[0011] Compared with the prior art, this utility model provides a casing-less fan and an integrated oil fume purification machine, which has the following beneficial effects:

[0012] This invention involves fitting a connecting ring around the outside of the air inlet pipe, rotatably connecting the air inlet pipe and the connecting ring via a connecting bearing, and fixing the connecting ring to the fume duct via a connecting assembly. When the fan rotates, the connecting bearing ensures a tight seal between the fan and the connecting ring, preventing contact between the air inlet pipe and the fume duct, reducing friction, and improving the fan's ability to draw in fumes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the fan inlet pipe and the fume pipe of this utility model;

[0014] Figure 2 This is a front sectional view of the air inlet pipe and the fume pipe of this utility model;

[0015] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0016] Figure 4 This is a front sectional view of the connecting component of this utility model;

[0017] Figure 5 This is a front sectional view of the oil fume purifier of this utility model.

[0018] In the diagram: 1. Fan body; 2. Air inlet pipe; 3. Fume duct; 4. Connecting ring; 5. Connecting bearing; 6. Connecting assembly; 601. Limiting block; 602. Fixing ring; 603. Limiting groove; 604. Slide rod; 605. Spring; 7. Fume purifier body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figure 1 - Figure 4 A casingless fan includes a fan body 1, an air inlet pipe 2 fixedly installed at the air inlet of the fan body 1, and an oil fume pipe 3 installed below the fan body 1. Both the air inlet pipe 2 and the oil fume pipe 3 are annular. The air inlet pipe 2 is sleeved on the outside of the oil fume pipe 3, and the air inlet pipe 2 and the oil fume pipe 3 do not contact each other, so that when the fan body 1 drives the air inlet pipe 2 to rotate, no friction will be generated between the air inlet pipe 2 and the oil fume pipe 3, thereby preventing wear and avoiding affecting the oil fume attraction effect of the fan body 1.

[0021] A connecting ring 4 is fitted on the outer side of the air inlet pipe 2. The air inlet pipe 2 and the connecting ring 4 are rotatably connected by a connecting bearing 5. The connecting ring 4 and the fume duct 3 are detachably connected. In this embodiment, the connecting bearing 5 is an angular contact ball bearing to ensure stability during the high-speed rotation of the fan body 1 and to guarantee the sealing between the air inlet pipe 2 and the connecting ring 4. At the same time, when the air inlet pipe 2 is aligned with the fume duct 3, the connecting ring 4 is fixed on the outside of the fume duct 3, so that the connecting ring 4 and the fume duct 3 remain stationary. The fan body 1 and the air inlet pipe 2 will continue to rotate. At this time, the air inlet pipe 2 and the fume duct 3 do not contact each other and no wear or friction will occur. The connecting bearing 5 reduces the friction between the air inlet pipe 2 and the connecting ring 4 and ensures the sealing, thereby improving the suction effect of the fan body 1 on the fumes.

[0022] Furthermore, the connecting ring 4 is annular, and the inner ring surface of the connecting ring 4 is detachably connected to the outer ring surface of the fume pipe 3 through two sets of connecting components 6. The two sets of connecting components 6 are arranged symmetrically on the left and right sides so that the connecting ring 4 can be fixed when installed on the outside of the fume pipe 3 and can be manually disassembled for easy maintenance of the device and easy addition of lubricating oil to the connecting bearing 5.

[0023] The following is a detailed description of the connecting component 6:

[0024] The connecting component 6 includes a limiting block 601, which is slidably connected to the inner side of the connecting ring 4 along the radial direction of the connecting ring 4. The limiting block 601 is detachably connected to the outer side of the fume duct 3 so that when the connecting ring 4 is installed on the outer side of the fume duct 3, the limiting block 601 can connect the fume duct 3 and the connecting ring 4 into one unit.

[0025] In order to ensure that the connecting ring 4 remains stationary like the fume duct 3 after the limiting block 601 is connected to the outside of the fume duct 3, the connecting assembly 6 in this application also includes a fixing ring 602. The fixing ring 602 is annular and is fixedly connected to the outer ring surface of the fume duct 3. The outer ring surface of the fixing ring 602 has two limiting grooves 603, which are respectively used for the two limiting blocks 601 to be inserted into. When the limiting block 601 is inserted into the limiting groove 603, the limiting block 601 can no longer rotate or move vertically, thereby preventing the connecting ring 4 from rotating or moving vertically, and ensuring that the rotation of the fan body 1 will not cause the connecting ring 4 to rotate together. Furthermore, the inner top and bottom walls of the limiting groove 603 are both flat, as are the upper and lower surfaces of the limiting block 604. This ensures that when the limiting block 601 is embedded in the limiting groove 603, its upper and lower surfaces can fit tightly against the inner top and bottom surfaces of the limiting groove 603, preventing the limiting block 601 from wobbling. Simultaneously, a baffle extends from the bottom of the limiting groove 603 towards direction 4, ensuring that when the limiting block 601 moves to contact the baffle, it is perfectly aligned with the limiting groove 603, preventing further downward movement and achieving a positioning effect.

[0026] In order to enable the limiting block 601 to automatically embed into the limiting groove 603 after the connecting ring 4 is installed on the outside of the fume duct 3, in this application, the side of the limiting block 601 facing the fixing ring 602 is inclined, so that when the limiting block 601 is installed on the outside of the fume duct 3 from top to bottom along with the connecting ring 4, the inclined surface of the limiting block 601 will contact the fixing ring 602, and the fixing ring 602 will push the limiting block 601 towards the inner ring surface of the connecting ring 4, so that the limiting block 601 will not hinder the downward movement of the connecting ring 4. A sliding rod 604 is fixedly mounted on the side of the limiting block 601 facing the inner ring surface of the connecting ring 4. One end of the sliding rod 604 extends to the outside of the connecting ring 4, and the sliding rod 604 and the connecting ring 4 are slidably connected. The sliding rod 604 is square in shape to prevent it from rotating on the connecting ring 4, thus preventing the limiting block 601 from rotating and causing its upper and lower ends to change, and preventing any interference with the process of the limiting block 601 entering the limiting groove 603. A spring 605 is sleeved on the outside of the sliding rod 604. The left and right ends of the spring 605 abut against the inner ring surface of the connecting ring 4 and the side wall of the limiting block 601, respectively. In its natural state, the spring 605 is in a compressed state, so that when the limiting block 601 moves to the position of the limiting groove 603, the spring 605 will apply a spring force to the limiting block 601, causing the limiting block 601 to embed into the limiting groove 603 and thus completing the limiting of the limiting block 601, thereby completing the fixed installation of the connecting ring 4.

[0027] It should be noted that in this embodiment, the fan body 1 has a shell-less structure, with air intake from the middle and exhaust from the sides, so as to reduce the exhaust resistance of the fan body 1 and improve the oil fume purification efficiency.

[0028] Example 2: Please refer to Figure 1 - Figure 5 This application proposes an integrated fume purification machine, including the shellless fan as described in Embodiment 1, and a fume purification machine body 7. The fan body 1, air inlet pipe 2, and fume pipe 3 are all disposed inside the fume purification machine body 7. The fan body 1 is fixedly connected to the inner top wall of the fume purification machine body 7, and the fume pipe 3 is fixedly disposed at the top of the fume chamber inside the fume purification machine body 7. The air inlet of the fan body 1 is connected to the fume chamber of the fume purification machine body 7, so that the fan body 1 can draw the fume inside the fume purification machine body 7 when it rotates. At the same time, the fan body 1 and the air inlet pipe 2 can be disassembled from the inside of the fume purification machine body 7, which is convenient for staff to maintain and clean the device.

[0029] The working principle and usage process of this utility model are as follows: The air inlet pipe 2 and the fume pipe 3 are connected by a connecting ring 4 to ensure that the fan body 1 can attract the fumes inside the fume purifier body 7. The air inlet pipe 2 and the connecting ring 4 are then connected by a connecting bearing 5. The connecting component 6 is used to fix the connecting ring 4 and the fume pipe 3 together, so that when the fan body 1 drives the air inlet pipe 2 to rotate, the fume pipe 3 and the connecting ring 4 can remain stationary. The connecting bearing 5 can reduce the friction during rotation while ensuring the sealing performance, thereby making the fan body 1 more effective at attracting fumes and improving the fume purification efficiency.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casingless fan comprising a fan body (1) characterized in that: The air inlet of the fan body (1) is fixedly provided with an air inlet pipe (2), and the lower portion of the fan body (1) is provided with an oil fume pipe (3); the air inlet pipe (2) and the oil fume pipe (3) are both annular, the air inlet pipe (2) is sleeved outside the oil fume pipe (3), the air inlet pipe (2) and the oil fume pipe (3) are not in contact, the outside of the air inlet pipe (2) is sleeved with a connecting ring (4), the air inlet pipe (2) and the connecting ring (4) are rotationally connected through a connecting bearing (5), and the connecting ring (4) and the oil fume pipe (3) are detachably connected.

2. A casingless fan as claimed in claim 1, wherein: The connecting ring (4) is annular, the inner ring surface of the connecting ring (4) is detachably connected with the outer ring surface of the oil fume pipe (3) through two groups of connecting assemblies (6), and the two groups of connecting assemblies (6) are symmetrically arranged left and right.

3. A casingless fan as claimed in claim 2, wherein: The connecting assembly (6) comprises a limiting block (601), the limiting block (601) is slidably connected to the inside of the connecting ring (4) in the radial direction of the connecting ring (4), and the limiting block (601) is detachably connected to the outside of the oil fume pipe (3).

4. A casingless fan as claimed in claim 3, wherein: The connecting assembly (6) further comprises a fixed ring (602), the fixed ring (602) is annular, the fixed ring (602) is fixedly connected to the outer ring surface of the oil fume pipe (3), and the outer ring surface of the fixed ring (602) is provided with two limiting grooves (603) for embedding the two limiting blocks (601) respectively.

5. A casingless fan as claimed in claim 4, wherein: One side of the limiting block (601) facing the fixed ring (602) is an inclined surface, one side of the limiting block (601) facing the inner ring surface of the connecting ring (4) is fixedly provided with a sliding rod (604), one end of the sliding rod (604) extends to the outside of the connecting ring (4), the sliding rod (604) is slidably connected with the connecting ring (4), the outside of the sliding rod (604) is sleeved with a spring (605), and the left and right ends of the spring (605) are abutted against the inner ring surface of the connecting ring (4) and the side wall of the limiting block (601) respectively; in a natural state, the spring (605) is in a compressed state.

6. An oil fume purification all-in-one machine, comprising the shell-less fan according to any one of claims 1-5, and further comprising an oil fume purification machine body (7), characterized in that: The fan body (1), the air inlet pipe (2) and the oil fume pipe (3) are all arranged inside an oil fume purifier body (7), the fan body (1) is fixedly connected to the inner top wall of the oil fume purifier body (7), the oil fume pipe (3) is fixedly arranged at the top of an oil fume bin in the oil fume purifier body (7), and the air inlet of the fan body (1) is in communication with the oil fume bin of the oil fume purifier body (7).

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