Laminar flow fan convenient to disassemble

Abstract

The utility model discloses a laminar flow fan convenient to disassemble, which comprises a fan shell fixing seat arranged on an isolator and a fan shell assembly arranged on the fan shell fixing seat, and is characterized in that a laminar flow fan is arranged in the fan shell assembly; an air guide cavity is formed in the fan shell fixing base, an air guide opening is formed in the fan shell assembly, and a positioning connecting piece used for being connected with the air guide cavity in a positioning mode is arranged on the air guide opening. According to the combined detachable laminar flow fan installation structure, a traditional fan shell is divided into two detachable parts, so that the laminar flow fan is arranged in the plenum chamber, and disassembly and assembly are easy and fast; the maintenance efficiency of the laminar flow fan can be effectively improved, and the equipment maintenance time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine packaging machinery and equipment, and more specifically, to a disassembled laminar flow fan. Background Art

[0002] Positive pressure isolators (general medicine and nuclear medicine) include static pressure boxes and laminar flow fans. Laminar flow fans are the source of air power inside the isolator and are prone to failure. Therefore, they need to be regularly inspected and replaced. Figure 1 As shown, the current positive pressure isolator is generally an integrated structure, in which the laminar flow fan 7 is installed inside the isolator and is blocked by a variety of devices. Therefore, the inspection and maintenance of the laminar flow fan 7 are all carried out inside the cavity. Before maintaining the laminar flow fan 7, the maintenance personnel need to stand inside the isolator cavity and spend a lot of time and physical strength to dismantle the flow equalization membrane and high-efficiency filter 13 and other devices inside the isolator. After these devices are removed, the laminar flow fan 7 can be inspected and repaired. The process is relatively long and cumbersome. In addition, there are radioactive residues inside the nuclear medicine isolator cavity. If the maintenance personnel spend too much time repairing inside the cavity, their bodies may be affected by radiation, causing health crises. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] Based on this, the utility model provides a combined detachable laminar flow fan installation structure, which allows maintenance personnel to maintain the laminar flow fan outside the cavity, thereby reducing the radiation impact that the maintenance personnel may be exposed to.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the utility model proposes a laminar flow fan that is easy to disassemble, comprising a fan casing fixing base arranged on an isolator and a fan casing assembly arranged on the fan casing fixing base, wherein the laminar flow fan is arranged in the fan casing assembly; an air guide cavity is arranged on the fan casing fixing base, an air guide port is arranged on the fan casing assembly, a positioning connector for positioning and connecting the air guide cavity is arranged on the air guide port, and a detachable fixing connector is arranged between the fan casing assembly and the fan casing fixing base.

[0007] Furthermore, the fan casing assembly and the fan casing fixing seat are detachably connected via a fixing connecting piece.

[0008] Furthermore, the fan casing assembly includes a fan casing and a fan casing cover, the fan casing includes an upper through hole and a lower through hole, the upper through hole is detachably connected to the fan casing cover; a fixing column is arranged around the lower through hole in the fan casing, and the laminar fan is connected to the fixing column through a laminar fan mounting plate.

[0009] Furthermore, the fan housing cover plate is provided with ventilation holes, and the ventilation holes are communicated with the upper through holes.

[0010] Furthermore, a shock-proof component is arranged around the positioning connector.

[0011] Furthermore, a power line connector and an air pipe connector are provided on a side of the fan housing assembly away from the positioning connector.

[0012] Furthermore, a fan casing handle is provided on a side of the fan casing assembly away from the positioning connector.

[0013] Furthermore, the anti-vibration component is arranged between the connecting hole and the fan casing component, and is fixedly connected to the positioning connector.

[0014] Furthermore, the fixing connection piece is arranged on the side of the fan casing away from the positioning connection piece, and its upper part is detachably connected to the fan casing, and its lower part is detachably connected to the fan casing fixing seat.

[0015] Furthermore, a connection hole is provided on the air guide cavity at a position corresponding to the positioning connection piece.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) The combined detachable laminar flow fan installation structure provided by the utility model divides the traditional fan casing into two detachable parts, thereby realizing the laminar flow fan from the static pressure box. The disassembly and assembly are simple and quick, which can effectively improve the maintenance efficiency of the laminar flow fan and save equipment maintenance time.

[0019] (2) The laminar flow fan in the combined detachable laminar flow fan installation structure provided by the utility model can be repaired outside the cavity, and the maintenance personnel no longer need to stand in the cavity for a long time, thereby avoiding residual radiation in the cavity that affects the health of the maintenance personnel and protecting human lives.

[0020] (3) The positioning assembly provided by the utility model can quickly position the fan casing assembly to a specified installation position on the fan casing fixing seat, which can effectively save installation time and also enhance the stability of the fan casing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0022] Figure 1 It is a structural schematic diagram of a conventional laminar flow fan installation structure disclosed in a preferred embodiment of the utility model;

[0023] Figure 2 This is a schematic structural diagram of a disassembled laminar flow fan during assembly disclosed in a preferred embodiment of the utility model;

[0024] Figure 3 This is a structural side view of a disassembled laminar flow fan disclosed in a preferred embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a fan housing assembly disclosed in a preferred embodiment of the utility model from a first viewing angle;

[0026] Figure 5 It is a structural schematic diagram of a fan housing assembly from a second viewing angle disclosed in a preferred embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the exploded structure of a fan casing assembly disclosed in a preferred embodiment of the utility model.

[0028] Figure 7 The utility model discloses a cross-sectional structure diagram of a laminar flow fan which is easy to disassemble.

[0029] Description of reference numerals:

[0030] 1. Fan casing assembly; 2. Fan casing fixing base; 3. Fan casing; 4. Fan casing handle; 5. Fixed connector; 6. Fan casing cover; 7. Laminar flow fan; 8. Laminar flow fan mounting plate; 9. Shockproof assembly; 10. Positioning connector; 11. Power cord connector; 12. Air pipe connector; 13. High efficiency filter. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] like Figures 2 to 7 As shown, the embodiment of the utility model discloses a laminar flow fan that is easy to disassemble. Specifically, the laminar flow fan that is easy to disassemble includes the following structure:

[0034] A laminar flow fan that can be easily disassembled comprises a fan casing assembly 1, a fan casing fixing seat 2 and an isolator which are sequentially connected from top to bottom and communicate with each other, the fan casing fixing seat 2 is provided with an air guide cavity, a connecting hole is provided at the connection between the air guide cavity and the fan casing assembly 1, the air guide cavity is communicated with the outside through the connecting hole, an air guide port communicated with the inside is provided at the connection between the fan casing assembly 1 and the connecting hole, the air guide port is connected to the connecting hole through a positioning connector 10, and the fan casing assembly 1 is positioned at a specified position on the fan casing fixing seat 2, a detachable fixing connector 5 is provided between the fan casing assembly 1 and the fan casing fixing seat 2.

[0035] like Figure 3 and 5 As shown, the fan casing assembly 1 and the fan casing fixing seat 2 are detachably connected via a positioning connector 10 and a fixing connector 5. The conventional fan casing structure is divided into a fan casing assembly 1 and a fan casing fixing seat 2, the laminar flow fan 7 is installed in the fan casing assembly 1, and the fan casing fixing seat 2 is fixedly connected to the isolator cavity to support and fix the fan casing assembly 1.

[0036] like Figure 7 As shown, when the laminar flow fan 7 is overhauled, the fan casing assembly 1 is disassembled, the fan casing assembly 1 is moved to the inspection port of the static pressure box, and then the laminar flow fan 7 in the fan casing assembly 1 is disassembled. The entire disassembly process of the laminar flow fan 7 does not require the disassembly of other accessories. The disassembly and assembly are simple and quick, which can effectively improve the inspection efficiency of the laminar flow fan 7 and save equipment maintenance time.

[0037] In some specific embodiments, Figure 6As shown, the fan casing assembly 1 includes a fan casing 3 and a fan casing cover 6, the fan casing 3 includes an upper through hole and a lower through hole, the upper through hole is detachably connected to the fan casing cover 6 to facilitate the installation of a laminar fan 7, and a ventilation hole is provided on the fan casing cover 6, and the ventilation hole is connected to the upper through hole; a fixing column is provided around the lower through hole in the fan casing 3, and after the laminar fan 7 is connected to the laminar fan mounting plate 8 by screws, the laminar fan mounting plate 8 is connected to the fixing column by screws to fix the laminar fan 7 in the fan casing 3.

[0038] In some specific embodiments, the positioning connector 10 is a circular ring structure, and its diameter matches the diameter of the connection hole. The positioning connector 10 and the wind guide cavity play a positioning role during the installation of the fan housing 3, and can also guide the wind in the fan housing 3 into the fan housing fixing seat 2 to achieve wind guide and positioning functions. The anti-vibration component 9 is arranged around the positioning connector 10, and the anti-vibration component 9 is bonded to the positioning connector 10 by glue. The material is soft silicone, which is located between the fan housing component 1 and the fan housing fixing seat 2, and plays a buffering and anti-vibration role.

[0039] In some specific embodiments, a power line connector 11 and an air pipe connector 12 are provided on a side of the fan housing 3 away from the positioning connector 10 to facilitate regulation of the internal device.

[0040] In some specific embodiments, a fan casing handle 4 is further provided on a side of the fan casing 3 away from the positioning connector 10 for facilitating maintenance personnel to disassemble and assemble the fan casing assembly 1 .

[0041] In some specific embodiments, the fixed connecting member 5 is arranged on a side of the fan casing 3 away from the positioning connecting member 10, and its upper part is detachably connected to the fan casing 3, and its lower part is detachably connected to the fan casing fixing base 2, so as to connect the fan casing assembly 1 and the fan casing fixing base 2 as a whole.

[0042] When installing the laminar flow fan 7, first fix the laminar flow fan 7 on the laminar flow fan mounting plate 8, then fix the laminar flow fan mounting plate 8 in the fan housing 3 through the fixing column, then connect the wires and the air pipe through the power line connector 11 and the air pipe connector 12, and finally fix the fan housing cover plate 6 on the fan housing 3 to achieve the installation of the fan assembly. The disassembly process is the opposite of the above content.

[0043] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A laminar flow fan that can be disassembled, comprising a fan casing fixing base (2) arranged on an isolator and a fan casing assembly (1) arranged on the fan casing fixing base (2), characterized in that: A laminar flow fan (7) is arranged in the fan housing assembly (1); an air guide cavity is arranged on the fan housing fixing seat (2); an air guide port is arranged on the fan housing assembly (1); and a positioning connector (10) is arranged on the air guide port for positioning and connecting the air guide cavity.

2. The easily disassembled laminar flow fan according to claim 1, characterized in that: The fan casing assembly (1) and the fan casing fixing seat (2) are detachably connected via a fixing connecting piece (5).

3. The easily disassembled laminar flow fan according to claim 2, characterized in that: The fan casing assembly (1) comprises a fan casing (3) and a fan casing cover plate (6); the fan casing (3) comprises an upper through hole and a lower through hole; the upper through hole is detachably connected to the fan casing cover plate (6); a fixing column is arranged in the fan casing (3) around the lower through hole; the laminar flow fan (7) is connected to the fixing column via a laminar flow fan mounting plate (8).

4. The easily disassembled laminar flow fan according to claim 3, characterized in that: The fan housing cover plate (6) is provided with a ventilation hole, and the ventilation hole is communicated with the upper through hole.

5. The easily disassembled laminar flow fan according to claim 1, characterized in that: An anti-vibration component (9) is arranged around the positioning connection piece (10).

6. The easily disassembled laminar flow fan according to claim 5, characterized in that: A power line connector (11) and an air pipe connector (12) are provided on a side of the fan housing assembly (1) away from the positioning connector (10).

7. The easily disassembled laminar flow fan according to claim 6, characterized in that: A fan casing handle (4) is also provided on a side of the fan casing assembly (1) away from the positioning connector (10).

8. The easily disassembled laminar flow fan according to claim 5, characterized in that: The anti-vibration component (9) is arranged between the connection hole and the fan casing component (1), and is fixedly connected to the positioning connector (10).

9. The easily disassembled laminar flow fan according to claim 3, characterized in that: The fixed connection piece (5) is arranged on the side of the fan casing (3) away from the positioning connection piece (10), and its upper part is detachably connected to the fan casing (3), and its lower part is detachably connected to the fan casing fixing seat (2).

10. The easily disassembled laminar flow fan according to claim 1, characterized in that: A connection hole is provided on the air guide cavity at a position corresponding to the positioning connection piece (10).

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