Assembled fan shell edge covering structure

Abstract

The utility model discloses an assembled fan shell edge covering structure which comprises an upper shell body and a lower shell body, and the upper shell body and the lower shell body form a complete fan shell body. The two sides of the upper shell and the two sides of the lower shell are each provided with a connecting ring, and an edge covering assembly is arranged at the joint of the upper shell and the lower shell. The edge covering assembly comprises an upper covering plate and a lower connecting plate, the edge of the outer side of the upper covering plate extends downwards to form a positioning plate, and the positioning plate is matched with the edge of the outer side of the lower connecting plate; the upper wrapping plate wraps the upper portion of the lower connecting plate, the upper shell and the lower shell are positioned through the positioning plate, the outer edge of the lower connecting plate can contain the positioning plate, the connecting rings on the two sides are made to be stable, the inner wall outline of the whole fan shell is kept stable, the tightness of the fan connecting structure is improved, and the service life of the fan connecting structure is prolonged. And in addition, due to the existence of the positioning plate during installation, position calibration is easier, and installation is more convenient.

Description

Technical Field

[0001] The utility model specifically relates to an assembled fan casing edge wrapping structure. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and deliver the gas. It is mainly composed of impeller, casing, air inlet, air outlet and other components. The impeller rotates under the drive of a power source such as a motor, allowing the gas to gain energy, thereby achieving functions such as gas transportation and pressurization. According to the working principle, it can be divided into centrifugal fans, axial flow fans, mixed flow fans, etc.

[0003] At present, most fans use assembled casings, which are produced in factories and then assembled on site. They are usually assembled with upper and lower or left and right two-petal casings. The fan casing can protect the internal impeller components to a certain extent and prevent interference and damage from external objects. The existing assembled fan casing is fixed by bolting the extending fixing plates on both sides during assembly. This fixing method is simple and fast, but during installation and use, it is often found that the internal contour of the fan does not meet the standard, that is, the internal space of the casing does not meet the safe rotation range of the impeller, which can easily affect the performance of the fan. There is a possibility of casing shaking during long-term use, thereby damaging the internal structure and affecting the service life of the fan.

[0004] Therefore, it is necessary to invent an assembled fan casing edge wrapping structure to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes an assembled fan casing edge structure, which has a stable edge structure and further stabilizes the shape of the fan casing.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an assembled fan casing edge wrapping structure, comprising an upper casing and a lower casing, wherein the upper casing and the lower casing form a complete fan casing;

[0009] Both sides of the upper shell and the lower shell are provided with connecting rings, and the connection between the upper shell and the lower shell is provided with an edge-wrapping component;

[0010] The edging assembly includes an upper edging plate arranged between the two ends of the connecting ring on both sides of the upper shell, and a corresponding lower connecting plate is also provided between the two ends of the connecting ring on both sides of the lower shell. A positioning plate extends downward from the outer edge of the upper edging plate, and the positioning plate matches the outer edge of the lower connecting plate, that is, the upper edging plate is docked with the upper part of the lower connecting plate and is limited by the positioning plate.

[0011] Preferably, a plurality of fixing holes are provided on the upper enveloping plate and the lower connecting plate, and the positions of the plurality of fixing holes on the upper enveloping plate and the lower connecting plate correspond to each other.

[0012] Preferably, the overall width of the lower connecting plate is smaller than the width between the two ends of the connecting rings on both sides, and the overall width of the upper wrapping plate together with the positioning plate corresponds to the width between the two ends of the connecting rings on both sides, that is, the width of the positioning plate is consistent with the reduced width of the lower connecting plate.

[0013] Preferably, when the positioning plate is installed on the outer edge of the lower connecting plate, its bottom does not exceed the bottom surface of the lower connecting plate, and docking positions for the connecting rings on both sides are left on its two sides.

[0014] Preferably, after the upper shell and the lower shell are assembled, the interior thereof is circular as a whole, and the overall circular division amounts of the upper shell and the lower shell are consistent.

[0015] Preferably, the connecting ring is provided with a plurality of evenly spaced mounting grooves, and docking holes are provided inside the mounting grooves.

[0016] Compared with the prior art, the beneficial effects of the above technical solution of the utility model are:

[0017] The upper wrapping plate provided in the utility model is wrapped around the upper part of the lower connecting plate, and the upper shell and the lower shell are positioned by the positioning plate, and the outer edge of the lower connecting plate can accommodate the positioning plate, so that the connecting rings on both sides remain stable, thereby keeping the inner wall contour of the overall fan shell stable, thereby improving the tightness of the fan connection structure, and due to the presence of the positioning plate during installation, position calibration is easier and installation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the upper shell and the lower shell of the utility model;

[0021] Figure 3 For the utility model Figure 2 Schematic diagram of the structure of part A.

[0022] Description of reference numerals:

[0023] 1. Upper shell; 2. Lower shell; 3. Connecting ring; 31. Mounting groove; 32. Docking hole; 4. Edge wrapping assembly; 41. Upper wrapping plate; 42. Lower connecting plate; 43. Positioning plate; 44. Fixing hole. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-3 The assembled fan casing edge structure shown includes an upper casing 1 and a lower casing 2, which form a complete fan casing.

[0026] Specifically, a connecting ring 3 is provided on both sides of the upper shell 1 and the lower shell 2, and an edge-wrapping component 4 is provided at the connection between the upper shell 1 and the lower shell 2;

[0027] Reference Figure 3 The edging assembly 4 includes an upper edging plate 41 arranged between the two ends of the connecting rings 3 on both sides of the upper shell 1, and a corresponding lower connecting plate 42 is also provided between the two ends of the connecting rings 3 on both sides of the lower shell 2. A positioning plate 43 extends downward from the outer edge of the upper edging plate 41, and the positioning plate 43 matches the outer edge of the lower connecting plate 42, that is, the upper edging plate 41 is docked with the upper part of the lower connecting plate 42 and is limited by the positioning plate 43.

[0028] Specifically, a plurality of fixing holes 44 are provided on the upper enveloping plate 41 and the lower connecting plate 42 , and the positions of the plurality of fixing holes 44 on the upper enveloping plate 41 and the lower connecting plate 42 correspond to each other.

[0029] In this embodiment, an upper shell 1 and a lower shell 2 are first prepared. When these two shells are combined, the interior of the entire shell is circular, and the overall circular divisions are consistent. Connecting rings 3 are installed on both sides of the upper shell 1 and the lower shell 2. The connecting rings 3 are provided with multiple evenly spaced mounting grooves 31, and docking holes 32 are provided inside the mounting grooves 31. The edging assembly 4 includes components such as an upper edging plate 41, a lower connecting plate 42, and a positioning plate 43. The upper edging plate 41 is installed between the ends of the connecting rings 3 on both sides of the upper shell 1, and the corresponding lower connecting plate 42 is installed between the ends of the connecting rings 3 on both sides of the lower shell 2. The positioning plate 43 extends downward from the outer edge of the upper edging plate 41. The overall width of the lower connecting plate 42 is smaller than the width between the ends of the connecting rings 3 on both sides. The overall width of the upper edging plate 41 and the positioning plate 43 corresponds to the width between the ends of the connecting rings 3 on both sides, and the width of the positioning plate 43 is consistent with the reduced width of the lower connecting plate 42. Multiple fixing holes 44 are opened on the upper edging plate 41 and the lower connecting plate 42, and the positions of these fixing holes 44 are ensured to correspond to each other.

[0030] Specifically, the overall width of the lower connecting plate 42 is smaller than the width between the two ends of the connecting rings 3 on both sides, and the overall width of the upper wrapping plate 41 together with the positioning plate 43 corresponds to the width between the two ends of the connecting rings 3 on both sides, that is, the width of the positioning plate 43 is consistent with the reduced width of the lower connecting plate 42.

[0031] Specifically, when the positioning plate 43 is installed on the outer edge of the lower connecting plate 42 , its bottom does not exceed the bottom surface of the lower connecting plate 42 , and docking positions for the connecting rings 3 on both sides are left on its two sides.

[0032] In this embodiment, the overall assembly process includes:

[0033] Docking the upper shell 1 and lower shell 2 together, bringing their connecting rings 3 closer together, prepare to install the edging assembly 4. Docking the upper edging plate 41 onto the upper portion of the lower connecting plate 42, aligning the positioning plate 43 with the outer edge of the lower connecting plate 42. During this process, the positioning plate 43 acts as a limiter. Because the overall width of the lower connecting plate 42 is smaller than the width between the ends of the connecting rings 3 on both sides, the overall width of the upper edging plate 41 together with the positioning plate 43 corresponds to the width between the ends of the connecting rings 3 on both sides, allowing for accurate docking during installation. Furthermore, when the positioning plate 43 is installed on the outer edge of the lower connecting plate 42, its bottom does not exceed the bottom surface of the lower connecting plate 42, and there are docking positions on both sides for the connecting rings 3 on both sides, which does not affect the docking of the connecting rings 3. Using the corresponding fixing holes 44 on the upper edging plate 41 and the lower connecting plate 42, the upper edging plate 41 and the lower connecting plate 42 are fixed together with bolts or other connecting parts to complete the installation of the edging assembly 4, thereby achieving a stable connection between the upper shell 1 and the lower shell 2.

[0034] Reference Figure 1-2 After the upper shell 1 and the lower shell 2 are assembled, the interior thereof is circular as a whole, and the overall circular division amount of the upper shell 1 and the lower shell 2 is consistent.

[0035] Specifically, the connecting ring 3 is provided with a plurality of evenly spaced mounting grooves 31 , and docking holes 32 are provided inside the mounting grooves 31 .

[0036] In this embodiment, the upper casing 41, the lower connecting plate 42, and the positioning plate 43 cooperate, and are fixed using the fixing holes 44, to provide a more stable connection between the upper shell 1 and the lower shell 2. For example, during the operation of the fan, vibrations may be generated. Without a stable connection, the shells may loosen or even separate. This hemming assembly structure can effectively resist vibrations and ensure the integrity of the fan's overall structure.

[0037] Specifically, the mounting groove 31 and the docking hole 32 on the connecting ring 3 also provide auxiliary connection points for the connection between the upper shell 1 and the lower shell 2, further enhancing the stability of the overall structure.

[0038] In this embodiment, the positioning plate 43 can accurately match the outer edge of the lower connecting plate 42, limiting the connection between the upper wrapping plate 41 and the lower connecting plate 42, thereby ensuring the accurate installation of the edge wrapping assembly 4. For example, in the large-scale production of fans, this accurate installation method can improve production efficiency and reduce rework caused by inaccurate installation.

[0039] Specifically, the width design of the lower connecting plate 42, the upper enveloping plate 41 and the positioning plate 43, as well as the corresponding arrangement of the fixing holes 44, all help to ensure that the various components can be accurately matched during installation, thereby achieving an efficient and accurate assembly process.

[0040] In this embodiment, the installation position of the positioning plate 43 is reasonably designed, its bottom does not exceed the bottom surface of the lower connecting plate 42, and docking positions for the connecting ring 3 are left on both sides. In this way, while ensuring the connection between the upper package plate 41 and the lower connecting plate 42, it will not interfere with the docking of the connecting ring 3, making the assembly process of the entire fan casing smoother.

[0041] Specifically, after the upper shell 1 and the lower shell 2 are assembled, the interior is circular. The structure of this edging component can well adapt to the circular shell structure, ensuring the compactness and rationality of the overall structure of the fan.

[0042] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An assembled fan casing edge wrapping structure, characterized by: It comprises an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) form a complete fan shell; Connecting rings (3) are provided on both sides of the upper shell (1) and the lower shell (2), and an edge wrapping component (4) is provided at the connection between the upper shell (1) and the lower shell (2); The edge wrapping assembly (4) comprises an upper wrapping plate (41) arranged between the two ends of the connecting ring (3) on both sides of the upper shell (1), and a corresponding lower connecting plate (42) is further provided between the two ends of the connecting ring (3) on both sides of the lower shell (2). A positioning plate (43) extends downward from the outer edge of the upper wrapping plate (41), and the positioning plate (43) matches the outer edge of the lower connecting plate (42), that is, the upper wrapping plate (41) is docked on the upper part of the lower connecting plate (42) and is limited by the positioning plate (43).

2. The assembled fan casing edge wrapping structure according to claim 1, characterized in that: A plurality of fixing holes (44) are provided on the upper enveloping plate (41) and the lower connecting plate (42), and the positions of the plurality of fixing holes (44) on the upper enveloping plate (41) and the lower connecting plate (42) correspond to each other.

3. The assembled fan casing edge wrapping structure according to claim 1, characterized in that: The overall width of the lower connecting plate (42) is smaller than the width between the two ends of the connecting ring (3) on both sides, and the overall width of the upper package plate (41) together with the positioning plate (43) corresponds to the width between the two ends of the connecting ring (3) on both sides, that is, the width of the positioning plate (43) is consistent with the reduced width of the lower connecting plate (42).

4. The assembled fan casing edge wrapping structure according to claim 1, characterized in that: When the positioning plate (43) is installed on the outer edge of the lower connecting plate (42), its bottom does not exceed the bottom surface of the lower connecting plate (42), and docking positions for the connecting rings (3) on both sides are left on both sides.

5. The assembled fan casing edge wrapping structure according to claim 1, characterized in that: After the upper shell (1) and the lower shell (2) are assembled, the interior thereof is circular as a whole, and the overall circular division amounts of the upper shell (1) and the lower shell (2) are consistent.

6. The assembled fan casing edge wrapping structure according to claim 1, characterized in that: The connecting ring (3) is provided with a plurality of evenly spaced mounting grooves (31), and docking holes (32) are provided inside the mounting grooves (31).

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