Fan cover side panel fixing structure, installation method and balance

Abstract

The fan cover side panel fixing structure is used for detachably fixing a side panel of a fan cover system, the fan cover system comprises a cover body, the fixing structure comprises an elastic piece and an elastic cantilever beam, and the elastic piece comprises a bent section; the elastic cantilever beam is arranged on the cover body and is opposite to the elastic sheet so as to define an in-place space for clamping the side panel; wherein the bent section is used for applying resilience force towards the in-place space to the side panel located in the in-place space. According to the fan cover side panel fixing structure, the side panel mounting structure can be simplified, and the side panel of the electronic balance can be conveniently mounted and dismounted. The invention further provides an installation method of the balance and the fan cover side panel.

Description

Technical Field

[0001] The invention relates to the field of electronic balances, and in particular to the field of fixed structures of electronic balances. Background Art

[0002] The electronic balance includes a wind shield system, a balance body, and a weighing component. The wind shield system is used to protect the electronic balance from external interference, such as preventing air flow or temperature changes from affecting the balance reading. The panels of the wind shield system include front and rear side panels, left and right side panels, and top panel. Some panels need to be designed to be easily removed from the balance or reinstalled to facilitate customer replacement.

[0003] Usually, the balance wind shield panel uses an installation and disassembly mechanism such as a spring hook fixing structure. The fixing structure involves many parts and the installation and disassembly are cumbersome, resulting in a complex assembly process, a long assembly time on the production line, and high costs. Summary of the invention

[0004] An object of the present invention is to provide a wind shield side panel fixing structure, which can conveniently realize the installation and disassembly of the electronic balance side panel.

[0005] To achieve the above-mentioned purpose, the side panel fixing structure of the wind hood is used to detachably fix the side panel of the wind hood system, wherein the wind hood system includes a cover body, and the fixing structure includes a spring sheet and an elastic cantilever beam, and the spring sheet includes a bending section; the elastic cantilever beam is arranged on the cover body, facing the spring sheet, so as to define a positioning space for clamping the side panel; wherein the bending section is used to apply a rebound force toward the positioning space to the side panel located in the positioning space.

[0006] In one or more embodiments, the spring sheet includes a snap-fitting hook, and the fixing structure also includes a snap-fitting portion provided on the cover body, and the snap-fitting portion is used to cooperate with the snap-fitting hook to fix the spring sheet to the cover body.

[0007] In one or more embodiments, the elastic cantilever beam further includes a boss portion for contacting the side panel so as to force the elastic cantilever beam to lift up by means of the resisting force of the side panel.

[0008] In one or more embodiments, the boss portion is disposed at an end portion of the elastic cantilever beam and protrudes toward one side of the side panel.

[0009] In one or more embodiments, the boss portion includes an arc-shaped contact surface, and the arc-shaped contact surface transitions to the surface of the non-boss portion of the elastic cantilever beam.

[0010] In one or more embodiments, the engaging hook includes a limiting hole, and the engaging portion includes a fixing boss for engaging with the limiting hole.

[0011] In one or more embodiments, the end of the elastic cantilever beam facing the seating space includes a protruding column for pressing the side panel.

[0012] In one or more embodiments, the spring sheet further includes a movable matching portion, which is disposed on a side of the spring sheet facing the cover body, and is used to achieve contact between the spring sheet and the cover body.

[0013] In one or more embodiments, the movable fitting portion is an elastic bending sheet.

[0014] In one or more embodiments, the rebound force generated when the bending section is squeezed by the side panel is directed toward the outside of the wind shield system.

[0015] In one or more embodiments, the elastic cantilever beam further includes an amplified portion, and the amplified portion has a larger force application area than a non-amplified portion on the elastic cantilever beam.

[0016] In one or more embodiments, the cover body includes an upper cover and a bottom shell, the clamping portion and the elastic cantilever beam are arranged on one of the upper cover and the bottom shell to fix the first end of the side panel, and the other of the upper cover and the bottom shell also includes a positioning groove to accommodate the second end of the side panel.

[0017] In one or more embodiments, the positioning slot is an inclined opening slot to allow the side panel to rotate in the inclined opening slot.

[0018] In one or more embodiments, the cover body includes an upper cover and a bottom shell, and the wind shield side panel fixing structure is respectively arranged on the upper cover and the bottom shell.

[0019] Another embodiment of the present invention provides a balance, including a wind shield system, a balance body and a weighing assembly, wherein the side panel of the wind shield system is fixed to the balance body by using the wind shield side panel fixing structure.

[0020] Another object of the present invention is to provide a method for installing a side panel of a hood, wherein the side panel and the fixing structure of the side panel of the hood are fixed to the cover body of the hood system, and the method comprises the following steps: S1. The engaging hook of the spring sheet is clamped on the engaging part of the cover body to fix the spring sheet on the cover body; S2. The elastic cantilever beam is lifted to move the side panel into the positioning space; S3. The side panel is squeezed to bend the spring sheet, and the elastic cantilever beam is reset, so that the elastic cantilever beam and the spring sheet apply opposite extrusion forces to the side panel to fix the side panel.

[0021] The above-mentioned wind hood side panel fixing structure is provided with a spring sheet and an elastic cantilever beam opposite to the spring sheet. The side panel is stably and reliably fixed by utilizing the elastic restoring force when the side panel squeezes the bending section of the spring sheet and the bidirectional squeezing effect of the elastic cantilever beam. The structure is simple in construction and easy to install and disassemble, which solves the problems of complex assembly process and long assembly time of the production line in the prior art and effectively reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0023] Figure 1 It is a schematic diagram of the structure of an electronic balance;

[0024] Figure 2 It is an oblique view of the wind shield system;

[0025] Figure 3 It is a schematic diagram of the installation position of the shrapnel;

[0026] Figure 4 It is a schematic diagram of the in-situ space;

[0027] Figure 5 is a schematic diagram of an embodiment of a shrapnel;

[0028] Figure 6 is a schematic diagram of an embodiment of a snap-fit ​​hook;

[0029] Figure 7 It is a schematic diagram of the bending section of the spring piece in a natural state;

[0030] Figure 8 It is a schematic diagram of the bending section of the spring piece in an extruded state;

[0031] Fig. 9 is a schematic diagram of the top of the side panel in a fixed state;

[0032] Fig.10 It is a schematic diagram of the bottom of the side panel and the positioning groove being in a mating state;

[0033] Fig.11 The present invention is a flow chart of an embodiment of a method for installing a side panel of a hood.

[0034] Symbols and Markings 1. Fan hood system

[0035] 2 Balance body

[0036] 3 Weighing components

[0037] 11 Side Panel

[0038] 12 Upper panel

[0039] 13 Column

[0040] 14 Base

[0041] 15 Guide Rail

[0042] 16 Upper cover

[0043] 40 Shrapnel

[0044] 41 body

[0045] 42 snap hook 43 bending section

[0046] 44 Limiting hole

[0047] 45 movable matching portion 50 engaging portion

[0048] 51 fixed boss 60 elastic cantilever beam 61 boss part

[0049] 63 Protruding Column

[0050] 64 Amplification

[0051] 70 Positioning space 80 Positioning slot

[0052] 81 bevel

[0053] 111 first end 112 second end DETAILED DESCRIPTION

[0054] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description herein. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0055] It should be noted that these and other subsequent drawings are only examples and are not drawn to scale, and should not be used to limit the actual scope of protection required by the present invention.

[0056] Reference Figures 1 to 3 As shown, the electronic balance includes a wind shield system 1, a balance body 2 and a weighing assembly 3. The wind shield system 1 includes four side panels 11 located in the front, back, left and right directions in the X and Y directions, an upper panel 12 on the top, a base 14 supporting the overall structure, a column 13, a pair of guide rails 15 and an upper cover 16 connected to the pair of guide rails 15. The guide rails 15 and the upper cover 16 form an integrated H-shaped structure. Figure 1In the illustrated embodiment, a pair of guide rails 15 and an upper cover 16 form an H-shaped structure, the upper panel 12 can realize a pull-out function relative to the guide rails 15 and the upper cover 16, the columns 13 are arranged along the Z direction, the guide rails 15 are arranged along the X direction, and the upper cover 16 is arranged along the Y direction.

[0057] The term "cover" referred to herein refers to the components located at the upper and lower ends of the column 13, and in the embodiments shown in the drawings, specifically refers to the upper cover 16 or the base 14 along the XY plane.

[0058] The fan hood side panel fixing structure disclosed in the present invention can detachably fix the side panel 11 to the fan hood system. The following content and drawings are introduced using the rear panel of the fan hood system as an embodiment. Those skilled in the art can understand that the fixing structure is also applicable to the installation and removal of the side panels in the front, left and right directions.

[0059] Reference Figure 4 and Fig. 9 As shown, the fixing structure includes a spring sheet 40 and an elastic cantilever beam 60 arranged on the cover body. Fig. 9 Taking the upper cover 16 as an example, the upper cover 16 is constructed with an elastic cantilever beam 60 by injection molding. Fig. 9 As shown, the elastic cantilever beam 60 and the spring sheet 40 face each other, defining a seating space 70 for clamping the side panel 11 .

[0060] Shrapnel 40 combination Figure 5 , Figure 6 and Fig. 9 It is understood that the bending section 43 is included, and the bending section 43 is used to apply a rebound force toward the positioning space 70 to the side panel 11 located in the positioning space 70. The side panel 11 located in the positioning space 70 squeezes the bending section 43, so that the bending section 43 generates a rebound force, and clamps the side panel 11 together with the elastic cantilever beam 60. The elastic return force generated by the bending section 43 on the spring sheet 40 and the force of the elastic cantilever beam 60 on the side panel 11 are balanced in the X direction, so that the side panel is stably and reliably fixed by utilizing the elastic restoring force of the bending section and the bidirectional squeezing action of the elastic cantilever beam.

[0061] The material of the spring piece 40 includes but is not limited to metal, and the shape is not limited to the arc shape shown in the figure, for example, it can also be a wave shape.

[0062] In some embodiments, the spring sheet 40 includes a snap hook 42, and the cover body also includes a snap portion 50 that cooperates with the snap hook 42, and the snap portion 50 can be formed by injection molding. The two side walls of the snap hook 42 clamp the snap portion 50 to fix the spring sheet 40 on the upper cover 16. In one embodiment of the snap hook 42, the bending structure extends from the spring sheet body 41 and toward the back side of the body 41 to form the snap hook 42, which is snapped on the snap portion 50 extending from the upper cover 16.

[0063] To further improve the fixing strength, in some embodiments, a limiting hole 44 is provided on one side wall of the engaging hook 42, and the engaging portion 50 includes a fixing boss 51 for inserting into the limiting hole 44. During installation, the engaging hook 42 is first inserted into the engaging portion 50 of the upper cover 16, and then the spring sheet body is pressed so that the fixing boss 51 on the engaging portion 50 is inserted into the limiting hole 44 on the spring sheet. At this point, the spring sheet 40 can be stably fixed on the upper cover 16.

[0064] In some embodiments, the elastic cantilever beam 60 further includes a boss portion 61 near one side of the seating space 70, and the boss portion 61 protrudes toward one side of the side panel 11, so as to force the elastic cantilever beam 60 to lift up by means of the resisting force of the side panel 11. Fig. 9 In the illustrated embodiment, the boss portion 61 is disposed at the end of the elastic cantilever beam and protrudes toward the side panel 11. For example, the side panel 11 is located below the elastic cantilever beam 60, and the boss portion 61 protrudes downward along the -Z direction.

[0065] The position of the boss portion 61 increases the thickness of the elastic cantilever beam 60. When the side panel is installed, when the first end portion 111 of the side panel 11 abuts against the boss portion 61, the boss portion 61 forces the elastic cantilever beam 60 to lift along the Z direction under the pressure of the top portion 111 of the side panel, thereby allowing the side panel 11 to pass over the boss portion 61 and enter the seating space 70. Continue to push or rotate the side panel 11 to move it toward the inside of the seating space 70, such as along Figure 7 and 9 As shown in FIG. 1 , the side panel 11 moves in the direction B, and the side panel 11 squeezes the bent section 43 in the seating space 70. At the same time, the side panel 11 gradually loses contact with the boss portion 61, and then the elastic cantilever beam 60 automatically rebounds to the initial position by virtue of its own elasticity, thereby squeezing and fixing the side panel 11 in the seating space 70 of the upper cover 16, so that the side panel 11 cannot retreat. Figure 8 shown.

[0066] Preferably, the boss portion 61 includes an arc-shaped contact surface, such as Figure 4 As shown, the surface of the elastic cantilever beam 60 transitions to the non-boss portion 61 except the boss portion 61 to cooperate with the smooth movement of the side panel 11.

[0067] When removing the side panel, the elastic cantilever beam 60 is lifted up to make the side panel 11 leave the seating space 70, and the side panel 11 is removed. One disassembly method is that the staff presses the elastic cantilever beam 60 with a tool or fingers. Based on this method, the elastic cantilever beam 60 includes an expansion part 64 for increasing the force application area. Compared with the non-expansion part of the elastic cantilever beam 60 except the expansion part, it has a larger force application area, which is convenient for the staff to operate.

[0068] Preferably, in some embodiments, the rebound force generated when the bending section 43 is squeezed by the side panel 11 is directed toward the outside of the wind shield system, such as Fig. 9 In the B' direction shown, by means of the resilience in this direction, the side panel 11 will automatically pop out toward the operator when it leaves the seating space 70 during the disassembly process, so as to facilitate the disassembly operation.

[0069] To facilitate disassembly, in some embodiments, the end of the elastic cantilever beam 60 facing the seating space 70 also includes a protruding column 63 with a smaller cross-sectional area. The protruding column 63 is in direct contact with the side panel 11. The purpose is to reduce the direct contact area between the elastic cantilever beam 60 and the side panel 11, thereby reducing the friction between the elastic cantilever beam 60 and the side panel 11 to facilitate disassembly.

[0070] In some embodiments, the spring piece 40 further includes a movable matching portion 45, such as Figure 5 and Figure 6 As shown, the movable matching portion 45 is arranged on the side of the spring sheet 40 facing the cover body to achieve contact between the spring sheet 40 and the cover body, with the purpose of reducing the friction between the spring sheet 40 and the cover body during the sliding process, so as to achieve smooth sliding of the spring sheet. Fig. 9 In the illustrated embodiment, the top of the spring sheet 40 is in contact with the upper cover 16, so the movable fitting portion 45 is disposed on the upper side of the spring sheet to reduce the friction between the spring sheet 40 and the upper cover 16. The movable fitting portion 45 is a plurality of elastically bent pieces extending from the end of the spring sheet body 41, and may also be other structures capable of achieving surface contact, line contact, or point contact.

[0071] The above-mentioned wind hood side panel fixing structure optimizes the traditional complex spring hook structure into a mode in which the spring sheet and the elastic cantilever beam are squeezed and matched with each other, which can conveniently realize the installation and removal of the side panel.

[0072] In some embodiments, the hood side panel fixing structure can be provided on both the upper cover 16 and the bottom shell 14, that is, both the upper cover 16 and the bottom shell 14 are provided with a clamping portion and an elastic cantilever beam for clamping the end of the side panel, and a pair of springs are respectively provided in the upper and lower fixing structures to clamp the first end 111 and the second end 112 of the side panel at the same time. In other embodiments, the clamping portion 50 and the elastic cantilever beam 60 are provided on one of the upper cover 16 and the bottom shell 14, and the other of the upper cover 16 and the bottom shell 14 further includes a positioning groove 80 for inserting the other end of the side panel to accommodate the second end 112 of the side panel 11.

[0073] like Fig.10 As shown, the positioning groove 80 is preferably an inclined opening groove having an inclined surface 81 to allow the second end 112 of the side panel 11 to rotate in the groove. The inclined surface 81 of the inclined opening groove determines the flipping angle of the side panel 11 on the wind shield bottom shell 14, and also determines the overall rotation angle of the side panel 11. The flipping angle can be limited and adjusted by controlling the specific shape and slope of the inclined opening groove.

[0074] Combined with the above introduction to the fixing structure of the side panel of the hood, it is also possible to understand a method for installing and removing the side panel of the hood. The installation method includes the following steps: Fig.11 The installation steps shown are: S1. The snap hook of the spring sheet is clamped on the snap part of the cover body to fix the spring sheet on the cover body; S2. The elastic cantilever beam is lifted to move the side panel into the positioning space; S3. The side panel is pressed against the bending section of the spring sheet, and the elastic cantilever beam is reset to apply a counter-pressing force to the side panel by means of the elastic cantilever beam and the spring sheet to fix the side panel. The steps for disassembling the side panel of the hood are: lift the elastic cantilever beam 60 to separate the side panel 11 from the positioning space 70, and remove the side panel 11, which is simple and easy to operate.

[0075] During step S1 of the installation process, the spring clip 40 may be installed on the assembled frame of the upper cover 16 , the guide rail 15 , the column and the base 14 , or the spring clip 40 may be first fixed on the upper cover 16 and then the upper cover 16 , the guide rail 15 , the column and the base 14 are assembled.

[0076] In step S2, the elastic cantilever beam can be lifted manually by the staff, or by the side panel lifting the boss portion 61. The latter operation steps are specifically as follows: move the side panel 11 so that the first end portion 111 of the side panel abuts against the boss portion 61, forcing the elastic cantilever beam 60 to lift up, thereby allowing the side panel 11 to move into the positioning space; continue to move the side panel 11 so that the first end portion 111 of the side panel is separated from the boss portion 61, and the elastic cantilever beam 60 automatically resets due to its own elasticity.

[0077] When the wind hood side panel fixing structure is simultaneously arranged on the upper cover 16 and the bottom shell 14, in steps S2 and S3, the upper and lower ends of the side panel are gradually pressed against the boss portion of the elastic cantilever beam by translation, and then gradually separated from the boss portion, so that the elastic cantilever beam is forced to gradually lift up, and then gradually reset automatically, thereby completing the installation process.

[0078] When one of the upper cover 16 and the bottom shell 14 is provided with a positioning groove 80, before step S2 or S1, the second end 112 of the side panel is inserted into the positioning groove 80. In step S2 and step S3, the side panel is rotated with the second end 112 of the side panel as the rotation point, so that the first end of the side panel gradually abuts against the boss portion, and then gradually separates from the boss portion, so that the elastic cantilever beam is gradually lifted up, and then gradually resets. Specifically, during the rotation of the side panel 11, the side panel 11 is rotated along the B direction. Under the pressure of the first end 111, the elastic cantilever beam 60 deforms and moves upward, and the first end 111 of the side panel 11 gradually abuts against the boss portion 61; the side panel 11 is continued to be pushed inward and gradually away from the boss portion 61. When the edge of the first end 111 passes over the boss portion 61, the boss portion 61 loses the pressure and automatically rebounds to the initial position, and the elastic cantilever beam 60 gradually resets automatically. At this time, the first end portion 111 is located exactly between the boss portion 61 and the spring sheet 40, thereby fixing the side panel 11 so that the side panel 11 cannot move backward. At the same time, during the flipping process of the side panel 11, the bent sections 43 on both sides of the spring sheet are squeezed to the specified position, such as Figure 8 As shown. Since the spring sheet 40 is made of elastic material, during this process, the spring sheet 40 always pushes the side panel 11 backward along the -X direction. At this time, the thrust generated by the bent section 43 on the spring sheet 40 and the reaction force generated by the boss portion 61 reach a balance, thereby stably and reliably fixing the position of the side panel 11.

[0079] Preferably, when a single worker installs the side panel, he first engages the engaging hook 42 of the spring into the engaging portion 50 of the cover body, then inserts the second end 112 of the side panel 11 into the positioning groove 80 , and rotates the side panel 11 to complete the installation and fixation of the side panel 11 .

[0080] When disassembly is required, the boss portion 61 is pressed and squeezed upward, so that the elastic cantilever beam 60 is deformed and moved upward. When the boss portion 61 on the elastic cantilever beam 60 passes over the edge of the first end portion 111 of the side panel, the original force balance state is broken, and the side panel 11 moves outward under the action of the rebound force of the two bent sections 43 on the spring sheet 40. After flipping to a certain angle, the side panel 11 is supported by the inclined opening groove on the bottom shell 14 of the hood and stops flipping. The side panel 11 is fixed in the positioning groove 80 of the bottom shell 14 of the hood at a certain angle, so that the operator can easily remove the side panel 11.

[0081] Combined with the above introduction to the wind hood side panel fixing structure and the side panel installation method, we can also understand a balance, which includes a wind hood system, a balance body and a weighing component. The side panel of the wind hood system is fixed to the balance body using the above wind hood side panel fixing structure.

[0082] It should be noted that the above content uses words such as "first" and "second" to limit components, which is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0083] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0084] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A fan hood side panel fixing structure, used for detachably fixing a side panel (11) of a fan hood system, wherein the fan hood system (1) comprises a cover body, characterized in that: The fixed structure includes: The spring piece (40) comprises a bent section (43); and An elastic cantilever beam (60) is arranged on the cover body and faces the elastic sheet (40) to define a seating space (70) for clamping the side panel (11); The bending section (43) is used to apply a rebound force in the direction of the seating space (70) to the side panel (11) located in the seating space (70).

2. The fan shield side panel fixing structure according to claim 1, characterized in that: The spring sheet includes a snap hook (42), and the fixing structure also includes a snap portion (50) arranged on the cover body, and the snap portion (50) is used to cooperate with the snap hook (42) to fix the spring sheet (40) to the cover body.

3. The fan shield side panel fixing structure according to claim 1, characterized in that: The elastic cantilever beam (60) further comprises a boss portion (61) for contacting the side panel (11) so as to force the elastic cantilever beam (60) to lift up by means of the resisting force of the side panel (11).

4. The fan shield side panel fixing structure according to claim 3, characterized in that: The boss portion (61) is arranged at the end of the elastic cantilever beam (60) and protrudes toward one side of the side panel (11).

5. The fan shield side panel fixing structure according to claim 3, characterized in that: The boss portion (61) comprises an arc-shaped contact surface, and the arc-shaped contact surface transitions to the surface of the non-boss portion of the elastic cantilever beam (60).

6. The fan shield side panel fixing structure according to claim 2, characterized in that: The engaging hook (42) comprises a limiting hole (44), and the engaging portion (50) comprises a fixing boss (51) for engaging with the limiting hole (44).

7. The fan shield side panel fixing structure according to claim 1, characterized in that: The end of the elastic cantilever beam (60) facing the seating space (70) comprises a protruding column (63) for pressing the side panel (11).

8. The fan shield side panel fixing structure according to claim 1, characterized in that: The spring sheet further comprises a movable matching portion (45) which is arranged on a side of the spring sheet (40) facing the cover body and is used to achieve contact between the spring sheet (40) and the cover body.

9. The fan shield side panel fixing structure according to claim 8, characterized in that: The movable matching portion (45) is an elastic bending sheet.

10. The fan shield side panel fixing structure according to claim 1, characterized in that: The rebound force generated when the bent section (43) is squeezed by the side panel (11) is directed toward the outside of the wind shield system.

11. The fan shield side panel fixing structure according to claim 1, characterized in that: The elastic cantilever beam (60) further comprises an amplified portion (64), and the amplified portion (64) has a larger force application area than the non-amplified portion on the elastic cantilever beam (60).

12. The fan shield side panel fixing structure according to claim 2, characterized in that: The cover body comprises an upper cover (16) and a bottom shell (14); the engaging portion (50) and the elastic cantilever beam (60) are arranged on one of the upper cover (16) and the bottom shell (14) to fix the first end portion (111) of the side panel (11); and the other of the upper cover (16) and the bottom shell (14) further comprises a positioning groove (80) to accommodate the second end portion (112) of the side panel (11).

13. The fan shield side panel fixing structure according to claim 12, characterized in that: The positioning groove (80) is an inclined opening groove to allow the side panel (11) to rotate in the inclined opening groove.

14. The fan shield side panel fixing structure according to claim 1, characterized in that: The cover body comprises an upper cover (16) and a bottom shell (14), and the wind shield side panel fixing structure is respectively arranged on the upper cover (16) and the bottom shell (14).

15. A balance, comprising a fan system, a balance body and a weighing assembly, characterized in that: The side panel of the wind shield system is fixed to the balance body by using the wind shield side panel fixing structure as described in any one of claims 1 to 14.

16. A method for installing a side panel of a fan hood, characterized in that: The side panel is fixed to the cover of the hood system by the hood side panel fixing structure according to any one of claims 1 to 14, and the method comprises the following steps: S1. The snap hook of the spring is clamped on the snap portion of the cover body to fix the spring on the cover body; S2. Lift the elastic cantilever beam to move the side panel into position; S3. The side panel is pressed against the bent section of the spring sheet, and the elastic cantilever beam is reset, so that the elastic cantilever beam and the spring sheet apply opposite pressing forces to the side panel to fix the side panel.

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