Range hood
By adopting a surface-to-surface connection method and a stable structure in the range hood, the deformation and fracture problems at the connection between the push rod and the smoke hood are solved, and the connection stability and service life are improved.
Patent Information
- Application Number
- CN202422104155.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In existing range hoods, the connection between the push rod and the smoke hood is easily deformed or broken due to excessive pressure, resulting in deviation of the movement path.
A surface-to-surface connection method is adopted, and a first connecting surface and a second connecting surface are set between the push rod assembly and the fixed part of the smoke hood to increase the connection area, reduce the pressure, and ensure the stability of the drive module through the recess and locking member in the shell.
Improves stability at the joints, reduces the risk of deformation and fracture, and extends service life.
Smart Images
Figure CN223050088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to an oil fume machine. Background Art
[0002] The oil fume machine includes a smoke collecting hood, and a smoke inlet is arranged on the smoke collecting hood. In order to realize the opening and closing of the smoke inlet, a smoke baffle and a push rod motor for driving the smoke baffle to rotate are movably connected to the smoke collecting hood.
[0003] In the existing oil fume machine, the existing push rod motor is connected to a fixing plate on the smoke collecting hood through a rotating shaft. This point-to-point connection method will cause a large pressure at the connection. When used for a long time, deformation will occur, resulting in a deviation in the movement path, and even breakage at the connection. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an oil fume machine to alleviate the technical problem that the connection between the push rod of the smoke guide plate and the smoke collecting hood in the existing oil fume machine is prone to fatigue damage.
[0005] In a first aspect, an oil fume machine provided by the utility model includes: a push rod assembly and a smoke collecting hood. A fixing part is arranged on the smoke collecting hood, and a first connection surface is arranged on the fixing part;
[0006] The push rod assembly includes a housing and a push rod module, and the push rod module is connected inside the housing;
[0007] A second connection surface is arranged on the outer wall of the housing, and the first connection surface is attached to the second connection surface.
[0008] Further, the push rod module includes a driving module, a linkage assembly and a push rod. The linkage assembly is respectively connected to the driving module and the push rod, so that the driving module drives the push rod to perform telescopic movement along a first direction through the linkage assembly.
[0009] Further, a recess recessed from the inside to the outside is arranged on the inner wall of the housing, and the driving module is installed in the recess.
[0010] Further, the recess can prevent the driving module from moving on a first plane, and the first plane is parallel to the driving direction of the push rod.
[0011] Further, the driving module is connected to the housing through a locking member.
[0012] Further, the housing includes a first housing and a second housing connected through a connection structure. The second housing has a recess for accommodating the driving module and the linkage assembly, and the first housing is used for closing the recess after being connected to the second housing.
[0013] Further, a first positioning structure is provided on the first housing, and a second positioning structure is provided on the second housing. The first positioning structure cooperates with the second positioning structure to align the connection structures on the first housing and the second housing.
[0014] Further, guiding structures are correspondingly provided on the recess and the linkage assembly. The guiding structures are used to guide the linkage assembly to move in the first direction.
[0015] Further, the first connection surface and the second connection surface are welded or connected by an adhesive.
[0016] Further, the fixing part can divide the internal space of the smoke collecting hood into an independent first part and a second part. The first part is communicated with the smoke inlet of the smoke collecting hood; the push rod module is connected in the second part.
[0017] The utility model at least has the following advantages or beneficial effects:
[0018] The range hood provided by the utility model includes: a push rod assembly and a smoke collecting hood. A fixing part is provided on the smoke collecting hood, and a first connection surface is provided on the fixing part; the push rod assembly includes a housing and a push rod module, and the push rod module is connected inside the housing; a second connection surface is provided on the outer wall of the housing, and the first connection surface is attached to the second connection surface.
[0019] Different from the point-to-point connection in the prior art, in this embodiment, between the push rod assembly and the fixing part on the smoke collecting hood, through the connection of surface to surface, that is, the first connection surface is attached to the second connection surface, thereby increasing the connection area between the two. On the one hand, with the increase of the connection area, the pressure at the connection is reduced. At the same time, after the first connection surface and the second connection surface are combined, it is equivalent to an increase in the overall thickness of the fixing part, which will also increase the stability of the fixing part and is not easy to deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a schematic diagram of the internal structure of the range hood provided in Embodiment 1 of the utility model;
[0022] Figure 2 It is a partial enlarged view of the position of the fixing part of the range hood provided in Embodiment 1 of the utility model;
[0023] Figure 3 Schematic diagram of removing the first housing from the push rod assembly of the range hood provided in Embodiment 1 of the present utility model;
[0024] Figure 4 Schematic diagram of the first housing of the range hood provided in Embodiment 1 of the present utility model;
[0025] Figure 5 Cross-sectional view of the push rod assembly of the range hood provided in Embodiment 1 of the present utility model perpendicular to the first direction;
[0026] Figure 6 Cross-sectional view of the push rod assembly of the range hood provided in Embodiment 1 of the present utility model perpendicular to the second direction;
[0027] Figure 7 Cross-sectional view of a push rod assembly of the range hood provided in Embodiment 1 of the present utility model perpendicular to the second direction;
[0028] Figure 8 Another cross-sectional view of the push rod assembly of the range hood provided in Embodiment 1 of the present utility model perpendicular to the second direction;
[0029] Figure 9 Schematic diagram of removing the first housing from the push rod assembly of the range hood provided in Embodiment 2 of the present utility model.
[0030] Icon: 100 - Push rod assembly;
[0031] 110 - Outer housing; 111 - First housing; 112 - Second housing; 1141 - First cavity; 1142 - Second cavity; 115 - Recess; 116 - Second connection surface;
[0032] 120 - Partition; 121 - First side wall; 122 - Second side wall;
[0033] 131 - Cam; 132 - Rotating shaft; 133 - Linear drive module; 134 - Motor;
[0034] 140 - Push rod;
[0035] 151 - Slide groove; 152 - Sliding part;
[0036] 161 - Positioning protrusion; 162 - Positioning hole;
[0037] 210 - Smoke collecting hood; 220 - Fixing part; 221 - First connection surface. Detailed implementation manners
[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0039] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0040] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is 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, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.
[0042] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0043] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0044] Embodiment 1
[0045] As Figure 1 , Figure 2 and Figure 7 shown, the range hood provided by the utility model includes: a push rod assembly 100 and a smoke collecting hood 210. The push rod assembly 100 is connected to the smoke collecting hood 210 and is used to push and pull a smoke baffle hinged on the smoke collecting hood 210.
[0046] Specifically, a fixing part 220 is arranged on the smoke collecting hood 210, and a first connecting surface 221 is arranged on the fixing part 220; the push rod assembly 100 includes a housing 110 and a push rod module, and the push rod module is connected inside the housing 110; a second connecting surface 116 is arranged on the outer wall of the housing 110, and the first connecting surface 221 is attached to the second connecting surface 116. Specifically, the first connecting surface 221 and the second connecting surface 116 can be connected by welding or by an adhesive.
[0047] Different from the point-to-point connection in the prior art, in this embodiment, the push rod assembly 100 and the fixing part 220 on the smoke collecting hood 210 are connected by surface-to-surface connection, that is, the first connecting surface 221 and the second connecting surface 116 are connected, thereby increasing the connection area between the two. On the one hand, when the connection area increases, the pressure at the connection is reduced. At the same time, after the first connecting surface 221 and the second connecting surface 116 are combined, it is equivalent to increasing the overall thickness of the fixing part 220, which will also increase the stability of the fixing part 220 and is not easy to deform.
[0048] The fixing part 220 can not only play a role in fixing the push rod assembly 100, but also play a role in separating the internal space of the smoke collecting hood 210. The fixing part 220 separates the internal space of the smoke collecting hood 210 into an independent first part and a second part, and the first part is communicated with the smoke inlet of the smoke collecting hood 210; the push rod module is connected in the second part, and the inhaled oil fume enters the fan assembly from the first part, and has little influence on the push rod assembly 100 in the second part.
[0049] The push rod module includes a driving module, a linkage assembly and a push rod 140. The linkage assembly is respectively connected to the driving module and the push rod 140, so that the driving module drives the push rod 140 to perform telescopic movement along the first direction through the linkage assembly.
[0050] When the driving module is started, power is transmitted to the push rod 140 through the linkage assembly, so as to realize the pushing and pulling movement of the push rod 140. In this embodiment, the push rod 140 performs linear movement in the horizontal direction.
[0051] As Figure 7As shown, a recess 115 that is recessed from the inner wall of the outer shell 110 is provided, and the drive module is installed in the recess 115. By accommodating the drive module in the recessed recess 115, interference of the drive module with the movement of the linkage assembly can be avoided. In this embodiment, the portion of the outer wall of the outer shell 110 opposite to the position where the recess 115 is located is the second connection surface 116.
[0052] In the first implementable solution, as Figure 8 shown, the recess 115 can play a limiting role. The drive module is placed into the recess 115, and the recess 115 can prevent the drive module from moving on the first plane, which is parallel to the driving direction of the push rod, thus ensuring the stability of the movement of the drive module.
[0053] In the second implementable solution, the drive module and the outer shell 110 are connected by a locking member. For example, the two are connected together by screws, thus ensuring the stability of the movement of the drive module.
[0054] In the third implementable solution, the recess 115 can be first used to limit the drive module, and then a locking member, such as a screw, is used to connect the drive module and the outer shell 110, with higher stability.
[0055] As Figure 3 and 4 shown, the linkage assembly includes a partition member 120. Along the first direction, the partition member 120 is slidably connected to the outer shell 110 and divides the inner cavity of the outer shell 110 into two independent first cavities 1141 and second cavities 1142; the push rod 140 is located in the second cavity 1142, and the drive module is located in the first cavity 1141.
[0056] The partition member 120 has the same motion state as the push rod 140. And because the partition member 120 divides the inner cavity of the outer shell 110 into two independent first cavities 1141 and second cavities 1142, thus, the oil fume on one side of the push rod 140 is difficult to enter the first cavity 1141 through the partition member 120, thereby reducing the oil fume pollution received by the drive module and increasing the service life of the drive module.
[0057] In this embodiment, the partition member 120 includes a first side wall 121 and a second side wall 122 that are spaced apart along the movement direction of the push rod 140, and the first side wall 121 and the second side wall 122 have the same motion state; the area between the first side wall 121 and the second side wall 122 forms the first cavity 1141; the linkage assembly includes a cam 131, and the drive module is connected to the cam 131 for driving the cam 131 to rotate; the cam 131 is located between the first side wall 121 and the second side wall 122, and the rotating cam 131 can alternately push the first side wall 121 and the second side wall 122 to make the partition member 120 reciprocate.
[0058] As Figure 4 and Figure 7 shown, the first side wall 121 and the second side wall 122 which are spaced apart are connected to each other and have the same motion state. In this embodiment, the separator 120 has a rectangular frame structure. The separator 120 includes a first cross beam, a first longitudinal beam, a second cross beam and a second longitudinal beam which are connected in sequence from head to tail. The surface of the first longitudinal beam facing the second longitudinal beam forms the first side wall 121, and the surface of the second longitudinal beam facing the first longitudinal beam forms the second side wall 122. The cam 131 is located inside the separator 120. The driving module includes a motor 134. The rotating shaft 132 of the motor 134 is connected to the cam 131 to drive the cam 131 to rotate relative to the housing 110. When the convex end of the cam 131 rotates to contact the second side wall 122, the cam 131 will push the separator 120 towards the push rod 140; conversely, when the convex end of the cam 131 rotates to contact the first side wall 121, the cam 131 will push the separator 120 away from the push rod 140. Among them, the cam 131 can be but is not limited to a Reuleaux triangle cam 131.
[0059] As Figure 4 shown. When pushing, the Reuleaux triangle cam 131 drives the separator 120 to move to the right. The separator 120 is subjected to a force from the cam 131 to the right and moves to the right in the sliding groove 151. The separator 120 drives the push rod 140 to maintain a horizontal movement to generate a pushing distance, and finally pushes out the smoke guide plate. The motor 134 rotates clockwise by 180° to open the smoke guide plate, and then rotates clockwise by 180° to close the smoke guide plate, without the need for forward and reverse rotation control.
[0060] As Figure 4 、 Figure 5 and Figure 7 shown, the housing 110 includes a first housing 111 and a second housing 112 connected by a connection structure. The connection structure can include screws and screw holes. The second housing 112 has a depression. The first housing 111 is used to enclose the depression after being connected to the second housing 112 of the device. The first housing 111 and the second housing 112 are combined to form an internal cavity, and the internal cavity houses the driving module and the linkage assembly.
[0061] Mounting and positioning structures are correspondingly provided on the first housing 111 and the second housing 112 to facilitate the assembly of the first housing 111 and the second housing 112. A first positioning structure is provided on the first housing 111, and a second positioning structure is provided on the second housing 112. The first positioning structure cooperates with the second positioning structure to align the connection structures on the first housing 111 and the second housing 112. For example, a positioning protrusion 161 is provided on the first housing 111, and a positioning hole 162 is provided on the second housing 112. After the positioning protrusion 161 and the positioning hole 162 are inserted and matched, a connecting member, such as a screw, can be used to connect the first housing 111 and the second housing 112, facilitating the splicing and assembly of the first housing 111 and the second housing 112.
[0062] Guiding structures are correspondingly provided on the outer housing 110 and the partition member 120, and the guiding structures are used to guide the partition member 120 to move in the first direction.
[0063] As Figure 6 shown, the guiding structure may include a sliding groove 151 and a sliding portion 152. Among the sliding groove 151 and the sliding portion 152, one of them is provided on the outer housing 110, and the other is provided on the partition member 120. The sliding portion 152 is slidably connected in the sliding groove 151. The sliding groove 151 extends in the first direction, and the sliding groove 151 plays a limiting role on the sliding portion 152. In this embodiment, the sliding groove 151 is provided on the second housing 112, and the sliding grooves 151 may be provided on both the upper edge and the lower edge of the second housing 112, and the openings of the two sliding grooves 151 face each other. Correspondingly, sliding portions 152 are provided on both the upper and lower side edges of the partition member 120, and the two sliding portions 152 are respectively slidably connected in the upper and lower sliding grooves 151.
[0064] Embodiment 2
[0065] As Figure 9 shown, the driving module includes a linear driving module 133. The driving end of the linear driving module 133 is connected to one side wall of the partition member 120, and the push rod 140 is connected to the opposite side wall of the partition member 120.
[0066] In this embodiment, the partition member 120 may be a rod-shaped structure extending in the second direction, and the second direction is perpendicular to the first direction. The partition member 120 divides the internal cavity into two parts, the left part is the first cavity 1141, and the right part is the second cavity 1142. The linear driving module 133, such as a push rod motor, can be directly provided on the left side of the partition member 120, and the push rod 140 is provided on the right side of the partition member 120.
[0067] The number of the linear driving modules 133 may be one; it may also be two or three, etc., so as to increase the stability of the movement of the partition member 120.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A range hood, characterized in that: include: A push rod assembly (100) and a smoke collecting hood (210), wherein the smoke collecting hood (210) is provided with a fixing portion (220), and the fixing portion (220) is provided with a first connecting surface (221); The push rod assembly (100) comprises a housing (110) and a push rod module, wherein the push rod module is connected inside the housing (110); A second connecting surface (116) is provided on the outer wall of the housing (110), and the first connecting surface (221) is in contact with the second connecting surface (116).
2. The range hood according to claim 1, characterized in that: The push rod module comprises a driving module, a linkage assembly and a push rod (140), wherein the linkage assembly is connected to the driving module and the push rod (140) respectively, so that the driving module drives the push rod (140) to perform telescopic movement along a first direction through the linkage assembly.
3. The range hood according to claim 2, characterized in that: A recess (115) that is recessed from the inside to the outside is provided on the inner wall of the housing (110), and the drive module is installed in the recess (115).
4. The range hood according to claim 3, characterized in that: The recess (115) is capable of preventing the driving module from moving on a first plane, wherein the first plane is parallel to the driving direction of the push rod (140).
5. The range hood according to any one of claims 2 to 4, characterized in that: The driving module is connected to the housing (110) via a locking member.
6. The range hood according to claim 3 or 4, characterized in that: The housing (110) comprises a first shell (111) and a second shell (112) connected by a connection structure, the second shell (112) having a recess for accommodating the drive module and the linkage assembly, and the first shell (111) is used to close the recess after being connected to the second shell (112).
7. The range hood according to claim 6, characterized in that: The first shell (111) is provided with a first positioning structure, and the second shell (112) is provided with a second positioning structure, and the first positioning structure cooperates with the second positioning structure to align the connection structures on the first shell (111) and the second shell (112).
8. The range hood according to claim 6, characterized in that: The recess and the linkage assembly are correspondingly provided with guide structures, and the guide structures are used to guide the linkage assembly to move along the first direction.
9. The range hood according to any one of claims 1 to 4, characterized in that: The first connection surface (221) and the second connection surface (116) are welded or connected via an adhesive.
10. The range hood according to any one of claims 1 to 4, characterized in that: The fixing portion (220) is capable of dividing the internal space of the smoke collecting hood (210) into an independent first part and a second part, wherein the first part is connected to the smoke inlet of the smoke collecting hood (210); and the push rod module is connected inside the second part.