Power device mounting structure and range hood applying same

Abstract

The utility model discloses a power device installation structure and a range hood applying the installation structure, the power device installation structure comprises a power device and an installation structure used for installing the power device on an external ceiling, the installation structure comprises a hanging rack and a hanging lug fixed with the power device; the hanging rack comprises a hanging rack body, and the hanging rack body comprises a longitudinal extending body and a transverse extending body. The transverse extending body is used for being fixed with a ceiling and is formed at the upper end part of the longitudinal extending body; the lug is formed at the lower end of the longitudinal extending body, the extending directions of the transverse extending body and the lug relative to the longitudinal extending body are opposite, and the hanging lug and the lug are fixed.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an installation structure of a power device and a range hood applying the installation structure. Background Art

[0002] As an essential kitchen appliance in every family, the range hood sucks oil fume from the air inlet through an impeller rotating at high speed in the volute, filters the oil fume by the impeller, and discharges the filtered oil fume from the air outlet, completing the purification of the kitchen air. A reasonable air inlet setting is beneficial to improving the oil fume suction effect, reducing the escape of oil fume, and improving the kitchen air quality.

[0003] In order to reduce noise and improve the user experience, at present, in kitchen appliances, especially range hoods, the fan is gradually placed in the ceiling, with the human ear far away from the sound source, and an acoustic absorption and noise reduction air duct is configured to make the kitchen quieter and allow people to immerse themselves in the joy of cooking. Currently, the fan on the ceiling is mainly connected to the top of the room by screw rods, and the screw rod is composed of a metal expansion screw and a screw rod, as disclosed in the Chinese patent with the application number 202221537478.4.

[0004] This structure is a suspension structure. In the part connecting the power device (fan), there is only positioning in the vertical height direction, and there is no fixation in the horizontal direction. After the power device is placed, there will be a shaking phenomenon, especially when the vibration is obvious, the shaking is more obvious. Moreover, the fan platform is connected by four screw rods, and two installation workers are required to cooperate to complete the installation, which requires more personnel. In addition, the screw connection itself has no shock absorption design, and there is a risk of loosening and falling of the expansion screw due to long-term vibration.

[0005] Therefore, further improvement is still needed. Summary of the Utility Model

[0006] The first technical problem to be solved by the utility model is to provide an installation structure of a power device aiming at the deficiencies of the above-mentioned existing technology, which improves the installation convenience and ensures the stability after installation.

[0007] The second technical problem to be solved by the utility model is to provide a range hood applying the above installation structure.

[0008] The technical solution adopted by the utility model to solve the first technical problem is as follows: An installation structure of a power device, including a power device and an installation structure for installing the power device to the external ceiling, the installation structure includes a hanging bracket and a hanging ear fixed to the power device; characterized in that:

[0009] The hanging bracket includes a hanging bracket body, and the hanging bracket body includes:

[0010] A longitudinally extending body;

[0011] A horizontally extending body, which is used for fixing to the ceiling and is formed at the upper end of the longitudinally extending body; and

[0012] Lugs, which are formed at the lower end of the longitudinally extending body. The horizontally extending body and the lugs extend in opposite directions relative to the longitudinally extending body, and the hanging ears are fixed to the lugs.

[0013] Since the whole hanger is generally in a Z shape, the longitudinally extending body is used for guiding and the horizontal lugs are used for pre-supporting. Thus, only one installer is required to complete the installation, saving labor; it is fixed with a stable Z-shaped hanger, which has high structural strength, is easy to install, and is stable after installation without obvious shaking.

[0014] Further, there are two lugs and they are formed at opposite ends of the longitudinally extending body. A notch is formed between the two lugs, and the hanging ears can be inserted from the end of the hanger or the notch, which can meet the installation in a small space.

[0015] Further, for facilitating the fixing of the hanger and the power device, the installation structure further includes screws. The screws pass through the lugs and the hanging ears from bottom to top, thereby fixing the hanger and the hanging ears, and further fixing the hanger to the power device.

[0016] Further, the installation structure further includes shock pads. The shock pads are arranged between the lugs and the hanging ears and between the lugs and the screws. Thus, the shock pads can effectively reduce vibration, avoiding the vibration of the whole machine under large resistance from being transmitted to the hanger, thereby ensuring the stability of the hanger installation.

[0017] Further, the installation structure further includes a loosening prevention device. The loosening prevention device includes a loosening prevention plate and a one-way nut. The loosening prevention plate is connected to the hanger body. The one-way nut is arranged inside the loosening prevention plate, and the head of the screw is placed inside the inner hole of the one-way nut, so that the screw rotates unidirectionally along with the one-way nut. By setting the loosening prevention device, the screw rotates unidirectionally, which can ensure stability and safety during the installation process, and greatly improve the installation efficiency. During operation, the screw can be prevented from loosening, greatly reducing the problem of screw loosening caused by vibration during operation, and greatly increasing the operation safety.

[0018] Further, for facilitating the limitation of the unidirectional rotation of the one-way nut, the loosening prevention plate is provided with an installation hole. The one-way nut is arranged inside the installation hole, and ratchet teeth are fixedly arranged on the outer periphery of the one-way nut. The loosening prevention device further includes a dial. The dial maintains a tendency to press tightly against the ratchet teeth, thereby limiting the unidirectional rotation of the one-way nut through the cooperation of the dial and the ratchet teeth.

[0019] Further, for facilitating the setting of the loosening prevention plate, a downwardly extending suspension column is arranged at the lower end of the hanger body, and the loosening prevention plate is arranged on the suspension column.

[0020] Further, to prevent the one-way nut and the screw from detaching, a stop plate is provided at the lower end of the suspension post. The suspension post passes through the anti-loosening plate, and the stop plate is located below the anti-loosening plate. A first elastic member is provided on the outer periphery of the suspension post. The lower end of the first elastic member abuts against the stop plate, and the upper end of the first elastic member abuts against the bottom surface of the anti-loosening plate, thereby causing the anti-loosening plate to be lifted upward.

[0021] Further, to facilitate the fixation of the hanging rack, a boss for fixing to the ceiling is formed on the laterally extending body of the hanging rack body. At the same time, the boss can also enhance the overall strength of the hanging rack.

[0022] Preferably, to stably install the hanging rack, there are two bosses which are formed at opposite ends of the hanging rack body. Fixing holes for cooperating with expansion screws are provided on the bosses.

[0023] Further, to prevent damage to the steel bars during drilling and affect the overall stability, each boss has at least two fixing holes arranged at intervals.

[0024] Preferably, the center distance between two adjacent fixing holes on each boss is greater than or equal to 25 mm.

[0025] The technical solution adopted by the present utility model to solve the above-mentioned second technical problem is: an oil fume extractor, characterized in that: the power device installation structure as described above is applied, and there are two groups of the hanging racks and hanging ears which are respectively arranged on opposite sides of the power device.

[0026] Compared with the prior art, the advantages of the present utility model are as follows: Since the hanging rack is generally in a Z shape as a whole, the longitudinally extending body is used for guiding, and the transverse lug is used for pre-supporting, so that only one installer is required to complete the installation, saving manpower; Fixed with a stable Z-shaped hanging rack, it has high structural strength, is easy to install, is stable after installation, and will not show obvious shaking; The shock-absorbing pad is used to effectively absorb shock, avoiding the transmission of the whole machine vibration under large resistance to the hanging rack, thereby ensuring the stability of the hanging rack installation; By setting the anti-loosening device, the screw can rotate unidirectionally, which can ensure stability and safety during the installation process, and greatly improve the installation efficiency. During operation, the screw can be prevented from loosening, and the problem of screw loosening caused by vibration during operation can be greatly reduced, greatly increasing the operation safety. Description of the Drawings

[0027] Figure 1 It is a partial front view of the oil fume extractor according to the embodiment of the present utility model;

[0028] Figure 2 For Figure 1 The sectional view of;

[0029] Figure 3Schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the present utility model;

[0030] Figure 4 is Figure 3 a cross-sectional view of;

[0031] Figure 5 is Figure 4 an enlarged schematic view of the partial Ⅰ of;

[0032] Figure 6 Schematic diagram of the three-dimensional structure of the installation structure of the range hood according to an embodiment of the present utility model;

[0033] Figure 7 Schematic diagram of the three-dimensional structure of the installation structure of the range hood according to an embodiment of the present utility model (from Figure 6 a different perspective);

[0034] Figure 8 Front view of the installation structure of the range hood according to an embodiment of the present utility model;

[0035] Figure 9 is Figure 8 an enlarged schematic view of the partial Ⅱ of;

[0036] Figure 10 Exploded structure diagram of the installation structure of the range hood according to an embodiment of the present utility model;

[0037] Figure 11 Cross-sectional view of the anti-loosening device of the installation structure of the range hood according to an embodiment of the present utility model;

[0038] Figure 12 is Figure 11 an enlarged schematic view of the partial Ⅲ of;

[0039] Figure 13 Schematic diagram of the hanging bracket of the installation structure of the range hood according to an embodiment of the present utility model. Specific embodiments

[0040] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0041] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the gravity direction. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] See Figures 1 to 4 , an oil fume extractor, comprising an air inlet assembly (not shown), a power device 1, and a connecting pipe (not shown) connected between the air inlet assembly and the power device 1. The power device 1 includes a box body 11 and a fan system 12 arranged inside the box body 11. The power device 1 is used to be installed above the ceiling. The air inlet assembly, connecting pipe, etc. of the oil fume extractor are prior arts, as can be seen from the Chinese patents disclosed in the applicant's application numbers 202322035585.8, 202222680884.2, etc.

[0043] The above-mentioned air inlet assembly, power device 1, and connecting pipe, as well as other components not shown, constitute the oil fume extractor body. The oil fume extractor further includes an installation structure for hanging the oil fume extractor body on an external installation base, such as the ceiling 100. The installation structure includes a hanging bracket 21. In this embodiment, to avoid using the traditional screw connection scheme, metal expansion screws are used to fix the hanging bracket 21, and the hanging bracket 21 is directly fixed to the concrete ceiling 100 at the top of the room. Fixing the hanging bracket 21 to the ceiling 100 at the top of the room with expansion screws can ensure the stability of the hanging bracket 21, and there will be no shaking in the horizontal or vertical direction, ensuring that there will be no shaking due to collision during installation.

[0044] There are two hanging brackets 21, which are respectively arranged on opposite sides of the box body 11 and extend in the front-rear direction as a whole. In this embodiment, they are arranged on the left and right sides of the box body 11, and each hanging bracket 21 extends along the front-rear direction. When the hanging bracket 21 is connected to the box body 11, a shock pad 24 (to be described in detail below) is arranged in the middle to prevent direct contact between the box body 11 and the hanging bracket 21, and to avoid the slight vibration transmitted to the hanging bracket part when the fan system 12 installed in the box body 11 rotates at a high speed under large resistance, thereby ensuring the reliability of the installation of the hanging bracket 21.

[0045] See Figures 4 to 13 Figures 4 to 13 , the hanger 21 includes a hanger body 211, a boss 212 formed on the hanger body 211, and a fixing hole 213 opened on the boss 212. The boss 212 is formed at positions close to opposite ends of the hanger body 211, such as positions close to the front and rear sides of the hanger body 211, and is formed by upward protrusion of corresponding parts of the hanger body 211. By providing the boss 212, the overall strength of the hanger 21 can be enhanced.

[0046] The hanger body 211 includes a laterally extending body 2111 and a longitudinally extending body 2112. The boss 212 is formed on the laterally extending body 2111, and the laterally extending body 2111 is located at the upper end of the longitudinally extending body 2112. The fixing hole 213 is fixed to the ceiling 100 by passing an expansion screw through it. The design of the fixing hole 213 takes into account the steel bars arranged at different positions on the top of the room to prevent damage to the steel bars during drilling, which may affect the overall stability. When designing the fixing hole, various possible distributions of the steel bars should be considered. When a steel bar is encountered during drilling, there should be alternative drilling positions to meet the drilling requirements. Therefore, there are at least two fixing holes 213 on the boss 212, and preferably they are oblong, with the length direction being the left-right direction. In this embodiment, there are two fixing holes 213. The center distance between two adjacent fixing holes 213 on each boss 212 is preferably greater than or equal to 25 mm. The diameter of the steel bars in general residential housing is less than or equal to 16 mm, and the diameter of the hole is about 9 mm, that is: 16 + 9 = 25. Therefore, the center distance of the installation hole 213 is greater than or equal to 25 mm, which can meet the installation requirements. In addition, there should also be a safety distance between two adjacent installation holes 213 on each boss 212. If the drilling distance is too close, it will affect the strength of the concrete between the holes. Currently, the commonly used drilling hole has a diameter of 10 mm, and the hole spacing is required to be greater than or equal to 40 mm. Therefore, the distance between two installation holes 213 is preferably greater than or equal to 40 mm.

[0047] The hanger body 211 further includes lugs 2113 formed at the lower end of the longitudinally extending body 2112. There are two lugs 2113, which are formed at the front and rear ends of the longitudinally extending body 2112. Each lug 2113 extends laterally, and relative to the longitudinally extending body 2112, the extending directions of the laterally extending body 2111 and the lugs 2113 are opposite. Thus, the overall cross-section of each hanger body 211 is approximately Z-shaped.

[0048] After the power unit 1 is placed on the lug 2113 of the hanging bracket 21, the hanging bracket 21 can provide a pre-support for the power unit 1, and the power unit 1 can slide in the horizontal direction. At this time, the longitudinally extending body 2112 can play a guiding role. Thus, an installer can complete the installation, and the installer only needs to exert force when lifting the power unit 1. This installation method is simple, convenient and labor-saving.

[0049] A notch 2114 is formed between the two lugs 2113. This is to facilitate the installation of the power unit 1, place the power unit 1 on the hanging bracket 21 for pre-support, reduce the installation space, and the power unit 1 can be fixed smoothly even in a relatively small space.

[0050] The installation structure further includes a hanging ear 22 and a screw 23. The hanging ear 22 is fixed to the housing 11 of the power unit 1. The hanging ear 22 can be in an inverted L shape. The horizontal part is used to be fixed to the hanging bracket 21, and the vertical part is used to be fixed to the housing 11. The screw 23 passes through the lug 2113 and the hanging ear 22 from bottom to top. The screw 23 is threadedly connected to the hanging ear 22, thereby fixing the hanging bracket 21 and the hanging ear 22, and further fixing to the housing 11. The installation structure further includes a shock pad 24, which is arranged between the lug 2113 and the hanging ear 22 and between the lug 2113 and the screw 23, such as can be arranged between the upper surface of the lug 2113 and the hanging ear 22, the lower surface of the lug 2113 and around the hole of the lug 2113 through which the screw 23 passes. The shock pad 24 can be a rubber pad, which plays a role in shock isolation and prevents the vibration of the power unit 1 from being transmitted to the hanging bracket 21.

[0051] To prevent the screw 23 from loosening, resulting in the loosening or even falling off of the power unit 1, the installation structure further includes a loosening prevention device. The loosening prevention device includes a loosening prevention plate 251, a one-way nut 252, a dial 253, a first elastic member 254 and a second elastic member 255. The loosening prevention plate 251 extends forward and backward in the same way as the hanging bracket body 211, and it is arranged below the hanging bracket body 211. A downwardly extending suspension column 214 is provided at the lower end of the hanging bracket body 211. The suspension column 214 is integrally formed with the hanging machine body 211. The loosening prevention plate 251 is installed on the suspension column 214. A stop plate 215 is provided at the lower end of the suspension column 214. The suspension column 214 passes through the loosening prevention plate 251, and the stop plate 215 is located below the loosening prevention plate 251. The first elastic member 254 is preferably a spring, which is arranged on the suspension column 214, and its lower end abuts against the stop plate 215, while the upper end abuts against the bottom surface of the loosening prevention plate 251, thereby lifting the loosening prevention plate 251 upward.

[0052] Mounting holes 2511 are respectively formed at the front and rear ends of the anti-loosening plate 251. The mounting holes 2511 are coaxial with the screw 23. The above-mentioned one-way nut 252 is arranged in the mounting holes 2511. The shape of the inner hole of the one-way nut 252 is consistent with the head of the screw 23. The head of the screw 23 is placed in the inner hole of the one-way nut 252, and the two can rotate synchronously. Ratchet teeth 256 are fixedly arranged on the outer periphery of the one-way nut 252. The one-way nut 252 and the ratchet gear 256 can be fixedly connected or integrally formed. The dial 253 is arranged on the outside of the one-way nut 252. The dial 253 maintains a tendency to press against the ratchet teeth 256 through the second elastic member 255 arranged in the mounting hole 2511. Thus, the one-way rotation of the one-way nut 252 relative to the anti-loosening plate 251 is restricted by the cooperation of the dial 253 and the ratchet teeth 256, thereby realizing the one-way rotation of the screw 23 relative to the hanger 21.

[0053] By providing the anti-loosening device, the one-way rotation of the screw 23 can be ensured, which can guarantee the stability and safety during the installation process and greatly improve the installation efficiency; during the operation process, the loosening of the screw 23 can be prevented, and the problem of loosening of the screw 23 caused by vibration during the operation process can be greatly reduced, greatly increasing the operation safety; since there are two mounting holes 2511, the two screws 23 on the same hanger 21 are in an associated installation state, improving the reliability of the screw 23 after installation.

Claims

1. A power device installation structure, comprising a power device (1) and an installation structure for installing the power device (1) on an external ceiling (100), wherein the installation structure comprises a hanger (21) and a hanger (22) fixed to the power device (1); characterized in that: The rack (21) comprises a rack body (211), and the rack body (211) comprises: A longitudinally extending body (2112); A transversely extending body (2111) for fixing to the ceiling (100), which is formed at the upper end of the longitudinally extending body (2112); and The lug (2113) is formed at the lower end of the longitudinally extending body (2112). The extending directions of the transversely extending body (2111) and the lug (2113) are opposite to those of the longitudinally extending body (2112). The hanging lug (22) is fixed to the lug (2113).

2. The power device installation structure according to claim 1, characterized in that: The lugs (2113) are two in number and are formed at two opposite ends of the longitudinally extending body (2112), and a notch (2114) is formed between the two lugs (2113).

3. The power device installation structure according to claim 1, characterized in that: The mounting structure further comprises a screw (23), wherein the screw (23) passes through the lug (2113) and the hanging lug (22) from bottom to top, thereby fixing the hanging bracket (21) and the hanging lug (22), thereby fixing the hanging bracket (21) and the power device (1).

4. The power device installation structure according to claim 3, characterized in that: The mounting structure further comprises a shock-absorbing pad (24), wherein the shock-absorbing pad (24) is arranged between the lug (2113) and the hanging lug (22) and between the lug (2113) and the screw (23).

5. The power device installation structure according to claim 3, characterized in that: The mounting structure also includes an anti-loosening device, which includes an anti-loosening plate (251) and a one-way nut (252). The anti-loosening plate (251) is connected to the bracket body (211), and the one-way nut (252) is arranged in the anti-loosening plate (251). The head of the screw (23) is placed in the inner hole of the one-way nut (252), so that the screw (23) rotates in one direction along with the one-way nut (252).

6. The power device installation structure according to claim 5, characterized in that: The anti-loosening plate (251) is provided with a mounting hole (2511), the one-way nut (252) is arranged in the mounting hole (2511), ratchet teeth (256) are fixedly arranged on the outer periphery of the one-way nut (252), and the anti-loosening device also includes a paddle (253), the paddle (253) maintains a tendency to press against the ratchet teeth (256), thereby limiting the one-way rotation of the one-way nut (252) through the cooperation between the paddle (253) and the ratchet teeth (256).

7. The power device installation structure according to claim 6, characterized in that: A hanging column (214) extending downward is provided at the lower end of the hanger body (211), and the anti-loosening plate (251) is provided on the hanging column (214).

8. The power device installation structure according to claim 7, characterized in that: A stop plate (215) is provided at the lower end of the suspension column (214), the suspension column (214) passes through the anti-loosening plate (251), the stop plate (215) is located below the anti-loosening plate (251), and a first elastic member (254) is provided on the periphery of the suspension column (214), the lower end of the first elastic member (254) abuts against the stop plate (215), and the upper end of the first elastic member (254) abuts against the bottom surface of the anti-loosening plate (251), thereby lifting the anti-loosening plate (251) upwards.

9. The power device installation structure according to claim 1, characterized in that: A boss (212) for fixing to the ceiling (100) is formed on the transversely extending body (2111) of the hanger body (211).

10. The power device installation structure according to claim 9, characterized in that: The bosses (212) are provided in pairs and are formed at two opposite ends of the bracket body (211). The bosses (212) are provided with fixing holes (213) for cooperating with expansion screws.

11. The power device installation structure according to claim 10, characterized in that: Each boss (212) has at least two fixing holes (213) arranged at intervals.

12. The power device installation structure according to claim 11, characterized in that: The center distance between two adjacent fixing holes (213) on each boss (212) is greater than or equal to 25 mm.

13. A range hood, characterized in that: The power device installation structure as claimed in any one of claims 1 to 12 is applied, wherein the hanger (21) and the hanger (22) have two groups and are respectively arranged on opposite sides of the power device (1).

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