Glass fiber reinforced plastic fan fairing shell

Abstract

The utility model discloses a glass fiber reinforced plastic fan fairing shell, which relates to the field of fan fairing, and comprises a fan shell and a fairing, the side surface of the fan shell is provided with a mounting side plate, the mounting side plate is provided with an air inlet, and the mounting side plate is fixedly connected with a centrosymmetric positioning snap ring device. The positioning snap ring device is a quarter of a complete circumference, the positioning snap ring device is concentric with the air inlet, the positioning snap ring device is in sliding clamping connection with the fairing, and the fairing is positioned on the positioning snap ring device through two fixing bolts. The assembly strength is guaranteed, the number of bolts needed for assembly is greatly reduced, the assembly and later maintenance difficulty is lowered, and the production and assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fan fairing, concretely relates to a glass fiber reinforced plastic fan fairing shell. BACKGROUND

[0002] The glass fiber reinforced plastic fan is a fan equipment manufactured by taking glass fiber reinforced plastic as main material, and due to the characteristics of light weight, high strength, corrosion resistance and high temperature resistance of the glass fiber reinforced plastic material, the glass fiber reinforced plastic fan performs well in special environments and is widely applied to the chemical industry, electroplating, environmental protection, ships and sewage treatment industries. The glass fiber reinforced plastic fan fairing is an important component in the fan system, mainly used for optimizing airflow, reducing wind resistance, protecting internal components and improving fan efficiency and stability.

[0003] For example, the Chinese patent with the application number CN202020389940.5 discloses a kitchen centrifugal ventilator, which comprises a volute and an impeller rotatably installed in the volute. The impeller is connected with a driving member for driving the rotation of the impeller. The volute comprises an air inlet and an air outlet. An air inlet noise reduction device and an air outlet noise reduction device are respectively installed at the air inlet and the air outlet. The air inlet noise reduction device comprises an air inlet fairing fixedly installed at the air inlet. The air inlet fairing is in communication with the air inlet and surrounds the air inlet. The air outlet noise reduction device comprises an air outlet fairing fixedly installed at the air outlet. The air outlet fairing is in communication with the air outlet and surrounds the air outlet. The structural strength of the air inlet and the air outlet of the volute is improved, and the noise generated by the vibration of the volute and the noise generated by the irregular impact of the airflow is reduced. The current glass fiber reinforced plastic fan fairing has the above-mentioned structure. The fixing mode of the fairing and the fan shell adopts bolt and nut connection. In order to ensure the connection strength, the number of bolts and nuts is extremely large, which leads to time-consuming and laborious assembly, affects the production efficiency, and increases the difficulty of later maintenance. UTILITY MODEL CONTENTS

[0004] To solve the problems in the above background art, the utility model provides a glass fiber reinforced plastic fan fairing shell. The circumferential clamping mode is adopted, and the bolt positioning and fixing are matched, so as to reduce the assembly and later maintenance difficulty and improve the production efficiency.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows:

[0006] A glass fiber reinforced plastic fan fairing shell comprises a fan shell and a fairing. The fan shell side is provided with a mounting side plate. An air inlet is formed in the mounting side plate. A center-symmetric positioning clasp ring device is fixedly connected to the mounting side plate. The positioning clasp ring device is one-fourth of a complete circle. The positioning clasp ring device is concentric with the air inlet. The positioning clasp ring device is slidably clamped with the fairing. The fairing is positioned on the positioning clasp ring device by two fixing bolts.

[0007] As a further setting of the above scheme, the positioning clamping ring device comprises two concentric clamping ring strips, parallel arc-shaped baffles are fixedly connected to the inner side upper ends of the two clamping ring strips, a circular arc-shaped clamping groove is formed between the clamping ring strip and the baffle, and a circular arc-shaped guide groove is formed between the two baffles.

[0008] As a further setting of the above scheme, the clamping ring strip is provided with a limiting plate at one end, and a locking screw hole is formed in the clamping groove at the end of the clamping ring strip away from the limiting plate.

[0009] As a further setting of the above scheme, the fairing comprises a fairing shell, a mounting circular groove is formed in the outer edge of the inner side of the fairing shell, and symmetrical arc-shaped guide strips are fixedly installed in the mounting circular groove, the two guide strips are concentric with the mounting circular groove, and the guide strips are one fourth of a complete circle.

[0010] As a further setting of the above scheme, a T-shaped ring table is fixedly connected between the two guide strips, the T-shaped ring table is located in the mounting circular groove and is concentric with the mounting circular groove, a counterbore is formed at the connection position of the T-shaped ring table and the guide strip, and the counterbore is correspondingly arranged with the locking screw hole.

[0011] The utility model has the following beneficial effects:

[0012] When the fairing is installed, the guide strip is assembled into the guide groove, the guide strip and the T-shaped ring table are in contact with the mounting side plate, at this time, the T-shaped ring table is located between the two positioning clamping ring devices, the fairing is rotated, the T-shaped ring table is slidably assembled into the clamping groove between the clamping ring strip and the baffle, the T-shaped ring table abuts against the limiting plate, the fairing is clamped on the fan shell, the counterbore is aligned with the locking screw hole, the fixing bolt is screwed through the counterbore and the locking screw hole, the fairing is fixed on the fan shell, the assembly strength is ensured, the number of bolts required for assembly is greatly reduced, the assembly and later maintenance difficulty is reduced, and the production assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the appearance schematic view of the utility model;

[0014] Figure 2 is the front view of the positioning clamping ring device of the utility model;

[0015] Figure 3 is the schematic view of the positioning clamping ring device of the utility model;

[0016] Figure 4 is the axonometric view of the fairing of the utility model;

[0017] Figure 5 is the first cross-sectional view of the fairing of the utility model;

[0018] Figure 6The second section view of the fairing shaft.

[0019] 1, fan housing; 2, positioning clasp ring device; 3, fairing; 4, fixing bolt; 101, installation side plate; 102, air inlet; 201, clasp ring strip; 202, baffle; 203, guide groove; 204, limiting plate; 205, locking screw hole; 301, fairing shell; 302, installation circular groove; 303, guide strip; 304, T-shaped ring table; 305, counterbore. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art better understand the present application, the technical scheme in the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Figures 1-6 The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0022] As shown in Figure 1 , Figure 2 , a glass steel fan fairing shell, comprising a fan housing 1 and a fairing 3, the fan housing 1 side is provided with an installation side plate 101, the installation side plate 101 is provided with an air inlet 102, the installation side plate 101 is fixedly connected with a center-symmetric positioning clasp ring device 2, the positioning clasp ring device 2 is one fourth of the complete circumference, the positioning clasp ring device 2 is concentric with the air inlet 102, the positioning clasp ring device 2 is slidably connected with the fairing 3, and the fairing 3 is positioned on the positioning clasp ring device 2 through two fixing bolts 4.

[0023] As shown in Figure 3 , the positioning clasp ring device 2 comprises two concentric clasp ring strips 201, the inner side of the two clasp ring strips 201 is fixedly connected with parallel arc-shaped baffles 202, a circular arc-shaped clamping groove is formed between the clasp ring strip 201 and the baffle 202, a circular arc-shaped guide groove 203 is formed between the two baffles 202, the clasp ring strip 201 is provided with a limiting plate 204 at one end, and the clamping groove away from the limiting plate 204 is provided with a locking screw hole 205 at one end.

[0024] As shown in Figure 4 , Figure 5 , Figure 6As shown, the fairing 3 comprises a fairing shell 301, the fairing shell 301 is provided with a mounting circular groove 302 on the inner side edge, the mounting circular groove 302 is fixedly provided with symmetrical arc-shaped guide strips 303, the two guide strips 303 are concentric with the mounting circular groove 302, the guide strip 303 is one quarter of a complete circle, a T-shaped ring table 304 is fixedly connected between the two guide strips 303, the T-shaped ring table 304 is located in the mounting circular groove 302, the T-shaped ring table 304 is concentric with the mounting circular groove 302, a counterbore 305 is formed at the connection between the T-shaped ring table 304 and the guide strip 303, and the counterbore 305 is correspondingly arranged with the locking screw hole 205.

[0025] The working process of the utility model: when assembling and installing the fairing 3, the guide strip 303 is inserted and assembled into the guide groove 203, the guide strip 303 is slidably connected with the guide groove 203, the guide strip 303 can rotate in the guide groove 203, at this time, the T-shaped ring table 304 is located between the two positioning clamping ring devices 2, after the guide strip 303 and the T-shaped ring table 304 contact with the mounting side plate 101, the fairing 3 is rotated, under the guidance of the guide strip 303 and the guide groove 203, the T-shaped ring table 304 is slidably assembled into the clamping groove between the clamping ring strip 201 and the baffle 202, when the T-shaped ring table 304 abuts against the limiting plate 204, the counterbore 305 is aligned with the locking screw hole 205, the fairing 3 is clamped on the fan housing 1 and the positioning clamping ring device 2, the fixing bolt 4 is screwed through the counterbore 305 and the locking screw hole 205, the fairing 4 is fixed on the fan housing 1, the assembly strength is ensured, the number of bolts required for assembly is reduced, and the assembly and later maintenance difficulty are reduced.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0027] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

Claims

1. A glass steel fan fairing shell, comprising a fan shell and a fairing, the fan shell is provided with a mounting side plate on the side, and an air inlet is formed on the mounting side plate, characterized in that, The center-symmetrical positioning clasp device is fixedly connected on the installation side plate, is one quarter of a complete circle, is concentric with the air inlet, and is in sliding connection with the fairing.

2. The fiberglass fan cowl housing of claim 1, wherein, The positioning clasp device comprises two concentric clasp strips, and parallel arc-shaped baffles are fixedly connected on the inner side surfaces of the two clasp strips.

3. The fiberglass fan cowl housing of claim 2, wherein, One end of the clasp strip is provided with a limiting plate, and a locking screw hole is formed in the clasp slot at the end of the clasp strip away from the limiting plate.

4. The fiberglass fan cowl housing of claim 1, wherein, The fairing comprises a fairing shell, and an installation circular groove is formed in the outer edge of the inner side surface of the fairing shell.

5. The fiberglass fan cowl housing of claim 4, wherein, Two T-shaped ring tables are fixedly connected between the two guide strips, are located in the installation circular groove, are concentric with the installation circular groove, and are provided with counterbores at the connection positions with the guide strips.

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